JP4746060B2 - Display device - Google Patents

Description

  The present invention relates to a display device, for example, a liquid crystal display device, an electroluminescence array, or another display device.

  For example, a liquid crystal display device includes a liquid crystal display panel PNL in which liquid crystal is enclosed using a transparent substrate as an envelope, a backlight that transmits light to the liquid crystal display panel PNL, and a drive circuit that supplies a display signal to the liquid crystal display panel PNL. These are modularized by being housed in a frame.

  A display control circuit for controlling the drive circuit is arranged on the back of the modularized liquid crystal display module together with a connector for taking in video data from the outside of the liquid crystal display device.

  However, the liquid crystal display device configured as described above is configured by mounting the display control circuit and the connector on the same substrate and attaching the substrate to the frame of the liquid crystal module (see Patent Document 1). .

JP-A-11-305227

  However, the liquid crystal display device configured in this way is configured by mounting the display control circuit and the connector on the same substrate and attaching the substrate to the frame of the liquid crystal display module.

For this reason, it has been pointed out that, depending on the user, the connector often does not conform to the specifications of the user, and it is not easy to replace it.
In addition, there is a disadvantage that the display control circuit that normally operates must be replaced at the same time.

The present invention has been made based on such circumstances, and an object of the present invention is to provide a display device that facilitates replacement of a connector for taking in external video data.
Another object of the present invention is to provide a display device that achieves the above-mentioned object and exhibits various effects that will become apparent from the following description.

  Of the inventions disclosed in this application, the outline of typical ones will be briefly described as follows.

Means 1.
In the display device according to the present invention, for example, on the surface opposite to the observation side of the display module, a connector for inputting video data and a substrate on which a display control circuit connected to the connector is mounted are attached.
The board on which the connector is mounted and the board on which the display control circuit is mounted are physically separated, and the area of the board on which the display control circuit is mounted is configured to be smaller than the area of the board on which the connector is mounted. It is characterized by this.

Mean 2.
The display device according to the present invention includes, for example, a display panel PNL, another member different from the display panel PNL arranged on the back surface of the display panel PNL, a connector for inputting video data, and a display control connected to the connector. And a circuit board on which the circuit is mounted,
While physically separating the board on which the connector is mounted and the board on which the display control circuit is mounted,
The substrate on which the display control circuit is mounted is disposed in contact with the back surface of the area excluding the display portion of the display panel PNL, and the substrate on which the connector is mounted is disposed in contact with the back surface of the other member. It is characterized by that.

Means 3.
The display device according to the present invention is premised on, for example, the configuration of any one of means 1 and 2, and the substrate on which the display control circuit is mounted includes a multilayer wiring layer, and the number of stacked layers is that of the substrate on which the connector is mounted. It is characterized by being formed more than that.

Means 4.
The display device according to the present invention is premised on, for example, the configuration of any one of means 2 and 3, and the area of the board on which the display control circuit is mounted is configured to be smaller than the area of the board on which the connector is mounted. It is a feature.

Means 5.
The display device according to the present invention is premised on, for example, the configuration of any one of means 2 to 4, and the signal wiring formed on the display panel PNL is mounted on the display control circuit mounting surface of the substrate on which the display control circuit is mounted. It is characterized in that it is electrically connected to a terminal drawn from the display control circuit on the opposite surface.

Means 6.
The display device according to the present invention is premised on the configuration of the means 5, for example, and the signal wiring of the display panel PNL is formed on the surface of the substrate on which the display control circuit is mounted opposite to the mounting surface of the display control circuit. The signal wiring of the display panel PNL and the terminal of the substrate on which the display control circuit is mounted are electrically connected via a flexible substrate having a conductor layer on one side. It is characterized by.

Mean 7
The display device according to the present invention is premised on, for example, the configuration of any one of means 2 to 4, and is formed with a first terminal arranged in parallel on the surface of the display panel PNL opposite to the substrate on which the display control circuit is mounted. And a second terminal arranged in parallel on the surface opposite to the display panel PNL of the substrate on which the display control circuit is mounted, and the corresponding first terminal and second terminal are connected to the display panel. The PNL and the display control circuit are electrically connected via respective conductor portions in a clip attached so as to sandwich the side surface portion of the substrate.

Means 8.
The display device according to the present invention is premised on, for example, the configuration of any one of means 2 to 4, and the first terminal arranged in parallel on the surface of the display panel PNL opposite to the substrate on which the display control circuit is mounted is provided. A second terminal is formed and formed in parallel on the surface opposite to the display panel PNL of the substrate on which the display control circuit is mounted, and the corresponding first terminal and second terminal are connected to the display. The panel PNL and the display control circuit are electrically connected via a flexible substrate disposed on the side surface of the substrate.

Means 9.
The display device according to the present invention is based on, for example, any one of the means 2 to 4, and the display control circuit board is arranged along the side of the display panel PNL where the scanning signal driving circuit is formed. The board on which the connector is mounted is extended to the other end side with the part where it is connected to the display control circuit board as one end, and the direction in which the terminals of the connector are arranged in parallel is the extension direction of the board And the width of the connector in the direction in which its terminals are juxtaposed is larger than the width in the direction intersecting the extending direction of the substrate. .

Means 10.
The display device according to the present invention is based on, for example, any one of the means 2 to 4, and the board on which the connector is mounted is replaced with a member from which a bundle of cables is drawn from the connector, and at least the connector of the connector is mounted. Adhesion to the display panel PNL is performed with an adhesive tape.

Means 11.
The display device according to the present invention is premised on, for example, the configuration of any one of means 2 to 4, and the board on which the connector is mounted is equipped with a fuse for preventing an overcurrent to the display control circuit board. It is characterized by this.

Means 12.
The display device according to the present invention is characterized in that, for example, on the premise of the configuration of any one of means 2 to 4, a data storage medium is mounted on a substrate on which a display control circuit is mounted.

Means 13.
The display device according to the present invention is characterized in that, for example, any one of the means 2 to 4 is assumed, and a data storage medium is mounted on a substrate on which a connector is mounted.

Means 14.
The display device according to the present invention is premised on, for example, any one of the means 2 to 4 and 12, and the board on which the connector is mounted is mounted with the first data storage medium, and the board on which the display control circuit is mounted. Is equipped with a second data storage medium, the first data storage medium is set with information supplied to the outside of the display device, and the second data storage medium is set with information supplied inside. It is characterized by this.

Means 15.
The display device according to the present invention is characterized in that, for example, on the premise of the configuration of the means 12, a DA converter that generates a gradation voltage from information in a data storage medium is provided.

Means 16.
The display device according to the present invention is characterized in that, for example, on the premise of the configuration of the means 15, a DA converter is built in the video signal driving circuit.

Means 17.
The display device according to the present invention is characterized in that, for example, on the premise of the configuration of the means 15, a DA converter is built in the display control circuit.

Means 18.
The display device according to the present invention has, for example, a board on which a connector for inputting video data and a display control circuit connected to the connector are mounted,
The substrate on which the connector is mounted and the substrate on which the display control circuit is mounted are physically separated, and the substrate on which the display control circuit is mounted is disposed on the back surface of the display drive circuit mounted on the display panel PNL,
The display driving circuit is composed of a plurality of semiconductor devices,
Power is supplied to each of the semiconductor devices from the substrate on which the display control circuit is mounted, and the power supply unit without any other semiconductor device interposed in the path from the power supply unit to each of the semiconductor devices And the number of corresponding semiconductor devices are equal.

Means 19.
The display device according to the present invention is premised on the configuration of the means 18, for example, and has a plurality of power supply units to the display drive circuit, and is arranged between one power supply unit and another power supply unit. There are a plurality of semiconductor devices.

Means 20.
The display device according to the present invention is characterized in that, for example, the configuration of the means 19 is assumed, and the number of semiconductor devices arranged between one power supply unit and another power supply unit is two. It is.

Means 21.
The display device according to the present invention is based on, for example, the configuration of the means 19, and the power supply section to the display drive circuit is an odd number, one of which is outside the one end of the display drive circuit comprising a plurality of semiconductor devices. It is characterized by being positioned in.

Means 22.
The display device according to the present invention is characterized in that, for example, the configuration of the means 21 is assumed, and the number of semiconductor devices is three and the number of power supply units is two.

Means 23.
The display device according to the present invention is based on, for example, the configuration of the means 21, and the power supply unit positioned outside one end of the display drive circuit protrudes from the other substrate facing the substrate on which the display drive circuit is formed. It is characterized in that it is positioned on the side of the side.

Means 24.
The display device according to the present invention has, for example, a board on which a connector for inputting video data and a display control circuit connected to the connector are mounted,
The board on which the connector is mounted and the board on which the display control circuit is mounted are physically separated, and the board on which the display control circuit is mounted is on one side of a virtual line along the longitudinal direction thereof. Positioned on the back surface of the display panel PNL, and arranged so that the other side is exposed from the display panel PNL,
In addition, the display control circuit board is formed with a notch in the side of the portion exposed from the display panel PNL, the notch is cut out in a direction perpendicular to the side, and the end side is a virtual line. It is characterized by being formed to match.

Means 25.
The display device according to the present invention, for example, on the premise of the configuration of the means 24, includes a frame for housing at least a substrate on which the display panel PNL and the display control circuit are mounted, and a member for fixing the frame with a screw. The tip portion penetrating through the display control circuit board is positioned in a notch formed in the display control circuit board.

Means 26.
The display device according to the present invention is characterized in that, for example, on the premise of the configuration of the means 24, a plurality of notches are provided.

Means 27.
The display device according to the present invention has, for example, a board on which a connector for inputting video data and a display control circuit connected to the connector are mounted,
The board on which the connector is mounted and the board on which the display control circuit is mounted are physically separated, and the board on which the display control circuit is mounted is on one side of a virtual line along the longitudinal direction thereof. Positioned on the back surface of the display panel PNL, and arranged so that the other side is exposed from the display panel PNL,
A mark is formed on the surface of the display panel PNL so as to coincide with a part of the side of the substrate on which the display control circuit positioned on the back surface is mounted.

Means 28.
The display device according to the present invention is premised on, for example, the configuration of the means 27, and the mark is formed in the vicinity of a flexible wiring substrate for electrical connection between the substrate on which the display control circuit is mounted and the display panel PNL. It is what.

Means 29.
The display device according to the present invention is premised on the configuration of the means 28, for example, and the display control circuit is characterized in that a notch for positioning is provided in the vicinity of the flexible wiring board.

Means 30.
The display device according to the present invention has, for example, a board on which a connector for inputting video data and a display control circuit connected to the connector are mounted,
The substrate on which the connector is mounted and the substrate on which the display control circuit is mounted are physically separated, and the substrate on which the display control circuit is mounted is positioned on the back surface of the display panel PNL,
A first mark is formed in a region of the display panel PNL facing the display control circuit board; a second mark is formed in a region of the display control circuit board facing the display panel PNL;
The first mark and the second mark are configured as marks for positioning the display control circuit board with respect to the display panel PNL.

Means 31.
A display device manufacturing method according to the present invention includes, for example, a display device having at least a display panel PNL, a connector for inputting video data, and a substrate on which a display control circuit connected to the connector is mounted.
While physically separating the board on which the connector is mounted and the board on which the display control circuit is mounted,
The substrate on which the display control circuit is mounted is disposed on the back surface of the region excluding the display portion of the display panel PNL,
And a step of performing an inspection by operating a display device with the substrate on which the display control circuit is mounted after the substrate on which the display control circuit is mounted is disposed on the back surface of the display panel PNL. .

Means 32.
A display device manufacturing method according to the present invention includes, for example, a display device having at least a display panel PNL, a connector for inputting video data, and a substrate on which a display control circuit connected to the connector is mounted.
While physically separating the board on which the connector is mounted and the board on which the display control circuit is mounted,
The substrate on which the display control circuit is mounted is disposed on the back surface of the region excluding the display portion of the display panel PNL,
A step of placing a substrate on which the display control circuit is mounted on the back surface of the display panel PNL and then operating the display device with the substrate on which the display control circuit is mounted to perform an inspection; and a step of attaching the substrate on which the connector is mounted It is characterized by providing.

Means 33.
The display device manufacturing method according to the present invention is premised on, for example, the configuration of any of the means 31 and 32, and the display device is a notebook personal computer.

Means 34.
The display device manufacturing method according to the present invention is premised on, for example, the configuration of any of the means 31 and 32, and the display device is a monitor.

Means 35.
The display device manufacturing method according to the present invention is premised on, for example, the configuration of any of the means 31 and 32, and the display device is a television.
In addition, this invention is not limited to the above structure, A various change is possible in the range which does not deviate from the technical idea of this invention.

  As is apparent from the above description, the display device according to the present invention has an effect that it is possible to easily exchange a connector for taking in external video data.

Embodiments of a display device according to the present invention will be described below with reference to the drawings.
Example 1.
<Overall equivalent circuit>
FIG. 22 is an equivalent circuit diagram showing an embodiment of a liquid crystal display device, for example.
In FIG. 22, there is a pair of transparent substrates SUB1 and SUB2 arranged to face each other via a liquid crystal, and the liquid crystal is sealed by a sealing material SL that also serves to fix the other transparent substrate SUB2 to one transparent substrate SUB1.

  On the liquid crystal side surface of the one transparent substrate SUB1 surrounded by the sealing material SL, the gate signal lines GL extending in the x direction and arranged in parallel in the y direction, and extending in the y direction and aligned in the x direction. A drain signal line DL is provided.

  A region surrounded by each gate signal line GL and each drain signal line DL constitutes a pixel region, and a matrix aggregate of these pixel regions constitutes a liquid crystal display unit AR.

  A common counter voltage signal line CL that runs in each pixel region is formed in each pixel region arranged in parallel in the x direction. The counter voltage signal line CL serves as a signal line for supplying a reference voltage for a video signal to a counter electrode CT (described later) in each pixel region.

  In each pixel region, a thin film transistor TFT operated by a scanning signal from one side gate signal line GL and a pixel electrode PX to which a video signal from one side drain signal line DL is supplied via the thin film transistor TFT are formed. Has been.

  The pixel electrode PX generates an electric field with the counter electrode CT connected to the counter voltage signal line CL, and the light transmittance of the liquid crystal is controlled by the electric field.

  One end of each of the gate signal lines GL extends beyond the seal material SL, and the extending end constitutes a terminal GLT to which the output terminal of the scanning signal driving circuit V is connected. A signal from a printed circuit board (not shown) disposed outside the liquid crystal display panel PNL is input to the input terminal of the scanning signal driving circuit V.

  The scanning signal drive circuit V is composed of a plurality of semiconductor devices, and a plurality of gate signal lines GL adjacent to each other are grouped, and one semiconductor device is assigned to each group.

  Similarly, one end of each of the drain signal lines DL extends beyond the seal material SL, and the extending end constitutes a terminal DLT to which the output terminal of the video signal driving circuit He is connected. Yes. Further, a signal from a printed circuit board (not shown) arranged outside the liquid crystal display panel PNL is input to the input terminal of the video signal driving circuit He.

The video signal drive circuit He is also composed of a plurality of semiconductor devices, and a plurality of adjacent drain signal lines DL are grouped, and one semiconductor device is assigned to each group. The counter voltage signal line CL is commonly connected at the right end in the drawing, and the connection line extends beyond the seal material SL, and constitutes a terminal CLT at the extended end. A voltage serving as a reference for the video signal is supplied from the terminal CLT.

  The liquid crystal display device configured as described above is referred to as a liquid crystal display panel PNL, and a backlight BL is disposed on the back surface of the liquid crystal display panel PNL. The light from the backlight BL is transmitted to each pixel of the liquid crystal display panel PNL according to the light transmittance, and reaches the eyes of the observer.

  Further, an upper frame in which an opening (display window) is provided in the liquid crystal display portion AR is disposed on the surface on the viewer side of the liquid crystal display panel PNL, and a lower frame is disposed on the back surface of the backlight BL. These are integrated and modularized by, for example, caulking on the side surfaces. In the following description, the modularized display device may be referred to as a display module.

  In the embodiment described above, the scanning signal drive circuit V and the video signal drive circuit He are semiconductor devices mounted on the transparent substrate SUB1, but are connected across the transparent substrate SUB1 and the printed circuit board, for example. In the case where the semiconductor layer of the thin film transistor TFT is made of polycrystalline silicon (p-Si), the semiconductor element made of the polycrystalline silicon on the transparent substrate SUB1 surface. May be formed together with the wiring layer.

  In this embodiment, a horizontal electric field type liquid crystal display device is described as an example of the display device. However, a vertical electric field method such as a TN method or a VA method may be used. Furthermore, a display device such as an electroluminescence array may be used.

  In the electroluminescence array, an organic light emitting material layer is sandwiched between a pair of electrodes in each pixel, and the intensity of light emission is controlled by the strength of current flowing through the organic light emitting material layer. However, the pixel electrode of the pair of electrodes is supplied with a video signal from a drain signal line via a thin film transistor, and the thin film transistor is driven by a scanning signal from a gate signal line, and the pair of electrodes This is because the counter electrode is formed in common for each pixel and a reference signal is supplied to the video signal, and the like is similar to the configuration of the liquid crystal display device.

  In the following description, each embodiment will be described by taking a liquid crystal display device as an example. However, if necessary, this fact will be clarified when an electroluminescence array is targeted.

《Back configuration》
FIG. 1 shows a view of the liquid crystal display module LQM from the back. As described above, the liquid crystal display panel PNL and the backlight BL are integrated with the lower frame UFM disposed on the backlight BL side and the upper frame FFM disposed on the liquid crystal display panel PNL side, and modularized as a whole. It has been done.

  For this reason, the view shown in FIG. 1 is a view seen from the lower frame UFM side, and the connector substrate CNTS and the display control circuit substrate TCNS are attached to the surface of the lower frame UFM.

  The connector substrate CNTS is a substrate to which a connector CNT for inputting video data from the outside of the liquid crystal display device and other components are attached, and the display control circuit substrate TCNS inputs video data obtained via the connector substrate CNTS. It is a substrate on which the display control circuit TCON is mounted. The output from the display control circuit TCON is input to the scanning signal driving circuit V and the video signal driving circuit He.

  Therefore, the wiring between the connector board CNTS and the display control circuit board TCNS is connected by the flexible wiring board FPC1, and the flexible wiring board FPC2 extending from the display control circuit board TCNS to the scanning signal drive circuit V is also provided. A flexible wiring board FPC3 extending to the video signal driving circuit He is attached.

  In addition, when the connector substrate CNTS is formed of the flexible wiring substrate FPC3 and is configured to be directly engaged with the connector of the display control circuit substrate TCNS, or both are directly engaged with the board-to-board type connectors. In such a configuration, the flexible wiring board FPC1 can be omitted.

  Here, as described above, the connector substrate CNTS and the display control circuit substrate TCNS are configured as separate substrates, and the display control circuit substrate TCNS is smaller in width and area than the connector substrate CNTS. It is configured.

  In the display device configured as described above, the size of the display control circuit board TCNS having a complicated pattern and high cost can be reduced, so that the dimensions can be adjusted by the member CNTS loaded with the connection member having a low unit price. As a result, the cost can be reduced.

Example 2
FIG. 2 is a view showing a cross section of a portion corresponding to the line II-II in FIG. First, the display control circuit board TCNS is arranged in contact with the back surface of the liquid crystal display panel PNL, that is, the back surface of the transparent substrate SUB1. As described above, since the display control circuit board TCNS is physically separated from the connector board CNTS, and the area thereof can be formed small, for example, the area on the back surface of the area where the scanning signal driving circuit V of the transparent substrate SUB1 is mounted. It can be arranged to fit inside.

  The connector substrate CNTS is disposed in contact with the lower frame UFM on the back surface of the lower frame UFM, and the connector cnt1 attached thereto is fitted into the connector cnt2 attached to the display control circuit substrate TCNS. It is connected.

  In this case, in order to facilitate the connection between the connector substrate CNTS and the display control circuit substrate TCNS, the lower frame UFM is formed without covering the display control circuit substrate TCNS at this connection portion. For example, FIG. ), The backlight BL is bent so as to be close to and face the side surface of one end side of the backlight BL.

  With this configuration, as shown in FIG. 2B, the connector substrate CNTS can be easily separated from or connected to the display control circuit substrate TCNS. It can be replaced with a desired type of connector board according to demand.

Example 3
FIG. 3A shows a display device having an electroluminescence array as a display panel PNL, and corresponds to FIG.
The display panel PNL uses a transparent substrate SUB1 and a transparent sealing member ECL formed on the surface (observation side surface) of the transparent substrate SUB1 as an envelope. Pixels are formed on the surface.

As in the case of FIG. 2, the display control circuit board TCNS is disposed in contact with the back surface of the display panel PNL, and its terminals are drawn out to the pixel side surface of the transparent substrate SUB1 through the flexible substrate FPC2. ing.
Unlike the liquid crystal display device, the display panel PNL does not include the backlight BL because the organic light emitting material layer itself in the pixel emits light.

  Therefore, the connector substrate CNTS is disposed in contact with the back surface of the frame FLM disposed on the back surface of the display panel PNL, and is connected to the display control circuit substrate TCNS via the flexible substrate FCP1.

  3B has substantially the same configuration as FIG. 3A, but in the display panel PNL, the transparent substrate SUB1 is positioned on the viewer side, and the sealing member ECL is positioned on the frame FLM side. It has been. In such a case, the portion on which the connector substrate CNTS is disposed becomes the surface on which the pixels of the transparent substrate SUB1 are formed, so that the flexible substrate FPC2 required in the configuration shown in FIG. Can do.

  Even in the display device shown in this embodiment, as in the second embodiment, the connector substrate CNTS can be easily replaced with a desired type of connector substrate according to a user's request.

Example 4
FIGS. 4A and 4B are views showing cross sections of the display control circuit board TCNS and the connector board CNTS shown in the above embodiments.
As shown in FIG. 4A, the display control circuit board TCNS includes a first layer LYR1, a second layer LYR2, a third layer LYR3, and a fourth layer LYR4 from the surface on which the display control circuit TCON is mounted. A wiring layer is formed via an insulating film.

  Here, for example, the wiring layer of the first layer LYR1 is a connection wiring to the display control circuit TCON, the wiring layer of the second layer LYR2 is a cross wiring, the wiring layer of the third layer LYR3 is a ground (ground) wiring, The wiring layer of the fourth layer LYR4 is configured as a power supply wiring.

  On the other hand, as shown in FIG. 4B, the connector substrate CNTS is only formed with a connection wiring with the connector CNT as the first layer LYR1 on the surface on which the connector CNT is mounted.

  In this embodiment, the number of wiring layers of the display control circuit board TCNS and the connector board CNTS is as described above, but it is needless to say that the number of wiring layers is not necessarily limited to this. Absent. However, the number of wiring layers in the display control circuit board TCNS needs to be larger than that of the connector board CNTS. In order to reduce the dimension outside the effective display area of the display device, that is, a so-called frame, and to reduce the cost, it is necessary to make the area of the display control circuit board TCNS smaller than the area of the connector board CNTS. Because.

  In this case, the connector substrate CNTS has different specifications for each customer request, and since the number of wiring layers of this member is small, it can be manufactured in a short period of time for a new request. .

Example 5 FIG.
A terminal TML is formed on the liquid crystal side surface of the transparent substrate SUB1 of the liquid crystal display panel PNL, and the display control circuit substrate TCNS is disposed on the surface opposite to the surface on which the terminal TML is formed. It is arranged facing the surface opposite to the mounted surface.

  The display control circuit board TCNS has a terminal TM drawn from the display control circuit TCON on the surface opposite to the surface on which the display control circuit TCON is mounted, and this terminal is connected to the liquid crystal display panel PNL via the flexible substrate FPC2. The terminal TML is connected.

  Since the terminal TML of the liquid crystal display panel PNL and the terminal TM of the display control circuit board TCNS are arranged to have steps, the flexible board FPC2 used for their electrical connection is What has the conductor layer SGL only on the single side | surface of the resin layer RSN can be used, and cost reduction can be aimed at.

  The configuration shown in FIG. 5A is an example of the liquid crystal display panel PNL, but the same configuration can be adopted even with an electroluminescence array. This is because in the structure shown in FIG. 5A, the transparent substrate SUB1 has only a difference that becomes the sealing member ECL.

  FIG. 5B shows an embodiment using an electroluminescence array as the display panel PNL, and shows a so-called bottom emission type in which the transparent substrate SUB1 is arranged on the viewer side.

  In this case, since the terminal TML of the display panel PNL has a relationship in which the display panel PNL and the display control circuit board TCNS are arranged so as to face the terminal TM of the display control circuit board TCNS, For example, the terminal TML and the terminal TM can be connected to each other using an anisotropic conductive layer or the like without using the flexible substrate FPC.

  In any case, in the connection between the terminal TML of the display panel PNL and the terminal TM of the display control circuit board TCNS, the distance can be reduced, and the feeding resistance can be reduced.

Example 6
FIG. 6A is a diagram showing another connection structure between the terminal TML formed on the liquid crystal display panel PNL and the terminal of the display control circuit board TCNS in the configuration of each embodiment described above. FIG. 6B shows a cross-sectional view taken along the line bb of FIG.

  In this case, the display control circuit board TCNS is intended for the one whose terminal TM is formed on the mounting surface of the display control circuit TCON. The display control circuit board TCNS is arranged so as to face the transparent substrate SUB1 of the display panel PNL on the surface opposite to the surface on which the terminals TM are formed, and the terminal TML of the transparent substrate SUB1 is the display control circuit board TCNS. It is formed on the opposite surface.

  The pitch of the terminals TML arranged in parallel on the display panel PNL is the same as the pitch of the terminals TM arranged in parallel on the display control circuit board TCNS, and the terminals TML and TM to be connected to each other are back to back. The transparent substrate SUB1 and the display control circuit board TCNS arranged on the side of the display control circuit board TCNS are electrically connected via the respective conductor portions SGS in the clip CLP attached so as to sandwich the side surface portion.

  That is, the clip CLP is formed of a “C” -shaped or “U” -shaped elastic member formed so as to cover a plurality of terminals, and a plurality of body portions SGS arranged in parallel on the inner surface thereof. It is comprised so that it may be provided.

  This makes it very easy to attach the clip CLP, and consequently, it is possible to extremely easily connect the terminal TML of the display panel PNL and the terminal TM of the display control circuit board TCNS.

Example 7
FIG. 7A is a plan view showing another embodiment of the liquid crystal display device according to the present invention. FIG. 7A is a view of the display panel PNL viewed from the observer side. The connector substrate CNTS, the display control circuit substrate TCNS, and the like arranged on the back surface of the display panel PNL are seen through the display panel PNL. I'm drawing. FIG. 7B shows a cross section taken along the line bb of FIG. 7A, and FIG. 7C shows a cross section taken along the line cc of FIG. 7A.

  First, the display control circuit board TCNS is arranged on the back side of the transparent substrate SUB1 of the display panel PNL, and the connector board CNTS is arranged on the back side of the lower frame UFM as in the above-described embodiment. In such a configuration, the electrical connection between the connector substrate CNTS and the display control circuit substrate TCNS is made through the opening HOL formed in the lower frame UFM, and the display control circuit substrate TCNS side is provided at the opening HOL portion. The female connector cnt5 (fc) attached to the connector and the male connector cnt5 (mc) attached to the connector substrate CNTS are used.

  As a result, the connector substrate CNTS can be easily attached even after the liquid crystal display module is completed. In addition, since the lower frame UFM does not need to be reduced in fixing with the upper frame FFM, for example, by caulking, it is possible to ensure the reliability of fixing the lower frame UFM to the upper frame FFM.

  In addition, the electrical connection between the terminal TM of the display control circuit board TCNS and the terminal TML of the display panel PNL can achieve simple and reliable contact by applying the above-described embodiment.

  However, as shown in FIG. 7C, the terminal TM of the display control circuit board TCNS and the terminal TML of the display panel PNL may be electrically connected with a configuration different from the above-described embodiment. Of course. FIG. 7C is a view corresponding to FIG. 6A described above, and is that a flexible substrate FPC 5 is used instead of the clip CLP. One end of the flexible substrate FPC is connected to the terminal TML of the display panel PNL, and the other end of the flexible substrate FPC extends around the side surface of the display panel PNL and the display control circuit board TCNS. The extended end is inserted into the connector cnt6 mounted on the display control circuit board TCN, and is electrically connected to the terminal TM of the display control circuit board TCN.

Example 8 FIG.
FIG. 8A is a plan view showing in detail an embodiment of the mounting portion of the scanning signal driving circuit V and the video signal driving circuit He in the liquid crystal display panel PNL.

  First, the scanning signal driving circuit V is composed of a plurality of so-called tape carrier type semiconductor devices TCP (G). Here, a tape carrier type semiconductor device has a chip-like semiconductor layer mounted on the surface of a flexible substrate, and its input and output terminals are connected to the periphery of the substrate via a wiring layer formed on the surface of the substrate. It is configured to be drawn out to a terminal formed in part. And the terminal of this board | substrate is connected to a terminal in order to connect liquid crystal display panel PNL via an anisotropic conductive film etc., for example.

  Each semiconductor device TCP (G) is connected to a plurality of gate signal lines GL that are adjacent to and adjacent to each other, and each gate signal line GL extends to a portion adjacent to the semiconductor device TCP (G). It is formed in a pattern that bends toward the semiconductor device TCP (G) side so as to converge with each other. This is because the terminal pitch of the semiconductor device TCP (G) is smaller than the wiring pitch of each gate signal line GL.

In this embodiment, the signal from the input wiring IPC from the display control circuit board TCNS is input to the semiconductor device TCP (G) adjacent thereto, and the output from the semiconductor device TCP (G) is Each semiconductor device TCP (G) of the scanning signal drive circuit V is driven by n data transfer wirings DTL (G) so as to be inputted to another semiconductor device TCP (G) arranged adjacent to each other. Each semiconductor device TCP (G) is configured to sequentially output scanning signals to the gate signal line GL that it is responsible for.
The video signal drive circuit He is also composed of a plurality of tape carrier type semiconductor devices TCP (D).

  Each semiconductor device TCP (D) is connected to a plurality of drain signal lines DL disposed adjacent to and adjacent to each other in the same manner as each semiconductor device TCP (G) of the scanning signal drive circuit V. The lines DL are formed in a pattern that is bent toward the semiconductor device TCP (D) so as to converge on the portion close to the semiconductor device TCP (D). This is because the terminal pitch of the semiconductor device TCP (D) is configured smaller than the wiring pitch of each drain signal line DL.

  Then, the signal from the input wiring IPC from the display control circuit board TCNS is input to the semiconductor device TCP (D) adjacent thereto, and the output from the semiconductor device TCP (D) is arranged next to the other. Each semiconductor device TCP (D) of the video signal drive circuit He is driven by m data transfer wirings DTL (D) and is input to the semiconductor device TCP (D). Is configured to output a video signal to each drain signal line DL in charge.

  The number m of data transfer wirings DTL (D) in the video signal driving circuit He is larger than the number n of data transfer wirings DTL (G) in the scanning signal driving circuit V.

  FIG. 8B is a plan view showing in detail another embodiment of the mounting portion of the scanning signal drive circuit V and the video signal drive circuit He in the liquid crystal display panel PNL, and corresponds to FIG. 8A. It has become.

  8A is different from the case of FIG. 8A in that a chip-like semiconductor device DRV (G) directly mounted on the transparent substrate SUB1 is used as a plurality of semiconductor devices constituting the scanning signal drive circuit V, and a video signal is used. A chip-like semiconductor device DRV (D) mounted directly on the transparent substrate SUB1 is used as the plurality of semiconductor devices constituting the drive circuit He.

  FIG. 8C is a plan view showing in detail another embodiment of the mounting portion of the scanning signal driving circuit V and the video signal driving circuit He in the liquid crystal display panel PNL, and corresponds to FIG. 8B. It has become.

  8A is different from the case of FIG. 8A in that the signal for power supply among the signals from the input wiring IPC from the display control circuit board TCNS is supplied to each semiconductor device DRV (D ) Using p power supply signal lines VLL.

  The flexible substrate FPC8 is arranged in the vicinity of the transparent substrate SUB1 and extends in the parallel arrangement direction of the semiconductor devices DRV (G) of the video signal drive circuit He.

  FIG. 9A is a plan view showing in detail another embodiment of the mounting portion of the scanning signal driving circuit V and the video signal driving circuit He in the liquid crystal display panel PNL, and corresponds to FIG. 8C. It has become.

  8C is different from the case of FIG. 8C in that the display control circuit board TCNS is first arranged in the vicinity of the side on the scanning signal drive circuit V side among the sides of the transparent substrate SUB1. The data transfer wiring DTL (G) of the scanning signal driving circuit V and the data transmission wiring DTL (D) of the video signal driving circuit He are drawn out from the TCNS.

  A signal line for supplying power to each semiconductor device DRV (D) of the video signal driving circuit He is also made directly from the display control circuit board TCNS via the flexible board FPC8. The flexible substrate FPC8 is connected to each semiconductor device DRV (D) using p power supply signal lines VLL.

  In this way, for example, two contact points can be reduced compared to the case where power is supplied to each semiconductor device DRV (D) via the wiring layer on the transparent substrate SUB1, and the connection resistance is reduced. As a result, power consumption can be reduced.

  FIG. 9B is a plan view showing in detail another embodiment of the mounting portion of the scanning signal driving circuit V and the video signal driving circuit He in the liquid crystal display panel PNL, and corresponds to FIG. 8C. It has become.

  8C is different from the case of FIG. 8C in that the input wiring IPC from the display control circuit board TCNS is formed of a flexible board, and this flexible board is connected to each semiconductor device DRV (D) of the video signal drive circuit He. Is integrated with a flexible substrate FPC8 for power supply.

  Further, the flexible substrate that becomes the input wiring IPC from the display control circuit substrate TCNS is a connection substrate to the data transfer wiring DTL (G) of each semiconductor device DRV (G) of the scanning signal drive circuit V.

  By comprising in this way, the number of connection points of a flexible substrate to the liquid crystal display panel PNL (transparent substrate SUB1) can be reduced, and the complexity of the alignment at the time of the connection can be eliminated.

Example 9
FIG. 10A is a block diagram showing another embodiment of the display device according to the present invention and corresponds to FIG. 7A. That is, it is a diagram showing the positional relationship between the connector substrate CNTS and the display control circuit substrate TCNS in relation to the transparent display panel PNL.
In this embodiment, a connector CNT is mounted on a rectangular connector substrate CNTS extending in the x direction in the drawing with its terminals arranged side by side in the x direction.

  In this case, when the width of the connector CNT in the direction in which the terminals are juxtaposed is 1, the width w of the connector substrate CNTS is set smaller than l. In other words, the connector substrate CNTS is formed in a rectangular shape having a relatively small width w and a long length in the length direction.

In other words, the connector substrate CNTS extends to the other end side with a portion where it is connected to the display control circuit substrate TCNS as one end, and the connector CNT has a direction in which its terminals are arranged in parallel. The width l in the direction in which the terminals of the connector CNT are juxtaposed is larger than the width w in the direction intersecting the extending direction of the connector substrate CNTS. With this configuration, it is possible to reduce the width of the connector substrate CNTS and thereby reduce the cost. In addition, the wiring length from the connector CNT to the display control circuit board TCNS on the connector substrate CNTS can be shortened, and attenuation of signals propagating to the wiring can be suppressed.

  FIG. 10B is a block diagram showing another embodiment of the display device according to the present invention and corresponds to FIG. The configuration different from FIG. 10A is that the connector CNT does not include a board on which the connector CNT is mounted, and is connected to the display control circuit board TCNS via a cable bundle CBB.

  The cable bundle CBB in the vicinity of the display control circuit board TCNS and the cable bundle CBB in the vicinity of the connector CNT are fixed to the lower frame UFM by, for example, an adhesive tape TAPE.

  With this configuration, the position of the connector CNT can be freely set, and the position of the connector CNT can be freely changed by peeling off and re-adhering the adhesive tape TAPE.

Example 10
FIG. 11A is a plan view showing the connector CNT10 attached to at least one end of the flexible substrate FPC or the cable CBB used in the above-described embodiment. In addition, FIG.11 (b) has shown the front view and FIG.11 (c) has shown the side view.

  The connector CNT10 is provided with means for fixing, for example, a hole HOL, between the connector CNT10 and a substrate to which the connector CNT10 is attached.

  That is, as shown in FIG. 11 (d), the connector CNT10 is arranged so that the hole HOL of the connector CNT10 is fitted into the protrusion PRJ formed on the substrate BASE, thereby The connector CNT10 can be fixed.

  FIG. 11 (e) shows another embodiment of attaching the connector CNT10 to the substrate BASE. As the protrusion PRJ, a protrusion PRJ2 having a shape extending from the tip toward the substrate BASE side and narrowing is eventually formed. Used, thereby avoiding the disconnection after the connector CNT10 is fixed.

  Further, FIG. 11 (f) shows a protrusion PRJ3 in which the protrusion PRJ2 is further improved. The protrusion PRJ2 having the above-mentioned shape has a cracked shape, which facilitates fitting of the connector CNT10. It is designed to have both the effects of being difficult to escape.

Example 11
FIG. 12A is a plan view showing another embodiment of the display device according to the present invention and corresponds to FIG. 7A.
7A is different from the case of FIG. 7A in that the connector board CNTS is equipped with a fuse FUS in addition to the connector CNT, and the fuse FUS generates an overcurrent to the display control circuit board TCNS side. It is designed to avoid it.

  In this case, even if an overcurrent occurs, the fuse FUS operates and the display control circuit TCNS is protected from the overcurrent. And even if this fuse FUS becomes unusable, only the connector base CNTS needs to be replaced, so that repair becomes extremely easy.

FIG. 12B is a plan view showing another embodiment of the display device according to the present invention, and corresponds to FIG.
A configuration different from the case of FIG. 7A is that a data storage medium DHM is mounted on the display control circuit board TCNS.

  Examples of information provided in the data storage medium DHM include, for example, set values for γ characteristics, set values for gradation voltages, data for instructing the display control circuit board TCNS to instruct signals for reducing power consumption, and the like. is there. The data storage medium DHM may be any medium that can electrically read information, such as a ROM flash memory, and may be built in the display control circuit board TCNS.

  Thus, there is an effect that a normal inspection can be performed by supplying a signal from the connection connector of the display control circuit board TCNS before the connector board CTNS is mounted.

Example 12
FIG. 13 is a view showing another embodiment of the display device according to the present invention and corresponds to FIG.
The configuration different from the case of FIG. 12B is that the data storage medium DHM is mounted not on the display control circuit board TCNS side but on the connector board CNTS side.
The data storage medium DHM may be capable of transmitting information such as panel specifications, manufacturer information, and product type to the outside.

  By doing so, panel information can be automatically grasped from the outside, and a video output circuit or a VGA card can be set. For example, by recording a manufacturer code, even if you purchase compatible products from multiple manufacturers and manufacture display devices, you can easily recognize the manufacturer and automatically adjust the video output circuit or VGA card accordingly. Therefore, the compatibility can be improved more easily.

  In this case, by providing this data storage medium DHM on the connector substrate CNTS, it is possible to cope with only the change of the connection substrate even when it is delivered to a plurality of companies, and the product can be made common. Can be greatly shortened.

  As the data storage medium DHM, ROM, flash ROM, or any other medium that can be recorded and can read information electrically can be used.

Example 13
FIG. 14 is a view showing another embodiment of the display device according to the present invention and corresponds to FIG.

  The configuration different from the case of FIG. 13 is that the connector substrate CNTS is mounted with the first data storage medium DHM1, the display control circuit substrate TCNS is mounted with the second data storage medium DHNS2, and the first The information to be supplied to the outside of the display device is set in the data storage medium DHM1 and the information to be supplied to the inside is set in the second data storage medium DHM2.

  In this way, by setting information for internal use in the second data storage medium DHM2, the inspection cost can be reduced, and by setting information for external use in the first data storage medium DHM1, Cost reduction by reducing the number can be realized. In other words, by separating internal and external information and setting them as separate members, various effects such as drastic cost reduction, quicker product shipping time, easy response to design changes, and inventory reduction are combined. Can be realized.

  As examples of storage media, ROM, flash ROM, and other media that can be recorded and from which information can be electrically read can be used.

  The display device may be provided with a DA converter that generates a gradation voltage based on information in the data storage medium DHM, and the DA converter may be incorporated in the video signal drive circuit He or the display control circuit TCON. Needless to say, it may be.

Example 14
FIG. 15A is a plan view showing another embodiment of the display device according to the present invention, and the display control circuit board TCNS is separated from the connector board CNTS as in the above-described embodiment. At the same time, it is disposed on the back surface of the scanning signal driving circuit V of the display panel PNL, for example.

  In this embodiment, the power supplied to each of the plurality of semiconductor devices DRV (G) constituting the scanning signal drive circuit V is made from the display control circuit board TCNS.

  In this case, for example, two semiconductor devices DRV (G) arranged side by side are grouped from one end side, and a power source from the display control circuit board TCNS is provided in a region between the semiconductor devices DRV (G) of each group. The supply unit VLS is positioned, and power is supplied from the power supply unit VLS to the respective semiconductor devices DRV (G) arranged on both sides thereof.

  With this configuration, the power supply conditions can be matched for each semiconductor device DRV (G), and image quality can be improved. Further, it is not necessary to provide a power supply unit corresponding to each of the semiconductor devices DRV (G) from the display control circuit board TCMS, the number of the power supply units can be reduced, and the cost can be reduced. .

  In the embodiment described above, the number of the semiconductor devices DRV (G) in the group to which the power supply units are allocated per one is two, but the number may be larger than that. In short, the number of power supply units and the number of corresponding semiconductor devices should be equal.

  FIG. 15B is a plan view showing another embodiment of the display device according to the present invention and corresponds to FIG. 15A.

  15A is different from the case of FIG. 15A in that the scan signal driving circuit V is composed of an odd number of semiconductor devices DRV (G), and power is supplied as shown in FIG. 15A. When the part VLS is disposed, the remaining one power supply part VLS is positioned at one end of the scanning signal driving circuit V. In this embodiment, it is positioned outside as an example.

  The remaining one power supply unit VLS is preferably positioned on the side where the transparent substrate SUB1 on which the scanning signal driving circuit V is formed protrudes from the other transparent substrate SUB2 facing it. is there.

  When configured in this way, the power supply unit VLS on the side can be made by combining the same flexible substrate with different wiring, and the number of connecting members of the display control circuit substrate TCNS and the display panel PNL (transparent substrate SUB1) Can be reduced.

Example 15.
FIG. 16A is a plan view showing another embodiment of the display device according to the present invention, and the display control circuit board TCNS is separated from the connector board CNTS in the same manner as the above-described embodiment. At the same time, it is disposed on the back surface of the scanning signal driving circuit V of the display panel PNL, for example. 16B is a sectional view taken along line bb in FIG. 16A, and FIG. 16C is a sectional view taken along line cc in FIG. 16A.

  In this embodiment, a structure in which the display panel PNL of the display control circuit board TCNS is attached to the display panel PNL with high accuracy is shown.

  The display control circuit board TCNS disposed on the back surface of the scanning signal drive circuit V of the display panel PNL, for example, is partly or mostly on one side (right side in the figure) with respect to the center line along the longitudinal direction. It is positioned on the back surface of the PNL, and is arranged so that a part or most of the other side (left side in the figure) is exposed from the display panel PNL.

  The display control circuit board TCNS has a notch CUT formed on the side of the portion exposed from the display panel PNL. The notch CUT is notched along a direction perpendicular to the side, and the end side, that is, the notch. The bottom of the notch is matched with the side of the transparent substrate SUB1 of the display panel PNL.

  That is, the display control circuit board CTNS is always stable by arranging the display control circuit board CTNS so that the bottom of the notch CUT formed in the display control circuit board TCNS is aligned with the side of the transparent substrate SUB1 of the display panel PNL. Thus, accurate alignment (alignment in the x direction in the figure) can be realized. Further, since this accurate alignment can be realized visually, it is possible to easily cope with repairs.

  Although the number of the cutout CUTs formed in the display control circuit board TCNS is not limited, there are two notched CUTs in a state of being separated from each other, so that accurate alignment can be achieved.

  FIG. 16D shows a case where the display device shown in FIGS. 16A, 16B, and 16C is modularized by a frame FLM (or a mold). When the screw is fixed to the housing FDT of the device, the tip of the screw passing through the frame FLM is positioned in the notch CUT of the display control circuit board TCNS.

  When configured in this way, an effect is obtained in which the width W between the inner wall surface of the frame FLM and the display control circuit board TCNS disposed in the vicinity thereof can be reduced.

Example 16
FIGS. 17A, 17B, and 17C are views showing the form of the cutout CUT shown in the fifteenth embodiment in the display control circuit board TCNS, respectively.

  Here, the notch CUT does not need to have three sides that define the outline, and may have a shape having two sides or one side. This is because the notch CUT referred to in the present embodiment is for providing a function of positioning the display control circuit board TCNS with respect to the display panel PNL, so that it is sufficient if the function can be exhibited.

  FIG. 17A shows an example in which a notch CUT having three sides and a notch CUT having two sides are provided in the display control circuit board TCNS, and FIG. 17B shows a notch CUT having two sides. Is provided on the display control circuit board TCNS, and FIG. 17C shows an example in which a notch CUT having one side is provided on the display control circuit board TCNS.

Example 17.
FIGS. 18A, 18B, and 18C are diagrams showing other embodiments of the display device according to the present invention, and show the positional relationship between the transparent substrate SUB1 of the display panel PNL and the display control circuit substrate TCNS. FIG.

  For example, in FIG. 18A, a mark MRK is formed on the front surface of the transparent substrate SUB1, and the display control circuit board TCNS disposed on the back surface of the transparent substrate SUB1 with respect to the mark MRK has one end side (x in the figure). (Sides parallel to the direction) are arranged close to each other.

  With this configuration, the display control circuit board TCNS can be accurately positioned in the y direction in the figure.

  In the case of FIG. 18A, the mark MRK is formed of, for example, a metal layer formed by vapor deposition or sputtering, and has a linear pattern parallel to one side of the display control circuit board TCNS. In the case of b), the apex has a triangular pattern that fits a part of one side of the display control circuit board TCNS. In the case of FIG. 18C, the apex has a round pattern.

  Note that when these patterns are formed using a metal layer or the like, the number of manufacturing steps can be prevented from increasing by forming the pattern simultaneously with the formation of the conductive layer formed in the pixel region of the display portion.

Example 18
FIG. 19A is a diagram showing another embodiment of the display device according to the present invention, and is also a plan view showing the positional relationship between the transparent substrate SUB1 of the display panel PNL and the display control circuit substrate TCNS.

  As shown in the above-described embodiments, the display control circuit substrate TCNS and the display panel PNL (transparent substrate SUB1) are physically and electrically connected by the flexible substrate FPC.

  The mark MRK formed on the surface of the display panel PNL (transparent substrate SUB1) is formed in a portion close to the flexible substrate FPC.

  Since accuracy is required on the side where the flexible substrate FPC is disposed, accuracy is improved by aligning the display control circuit board TCNS with the mark MRK on the required side.

  FIG. 19B shows a display control circuit board TCNS in the x direction in the figure by forming a notch CUT in the display control circuit board TCNS in the vicinity of the flexible board FPC in the configuration shown in FIG. It is the structure which aimed at positioning.

  The display control circuit board TCNS is prevented from being displaced with respect to the x and y directions around the flexible board FPC of the display control circuit board TCNS.

Example 19.
FIG. 20 is a diagram illustrating another embodiment of the display device according to the present invention, and is a diagram illustrating a configuration for achieving accurate alignment between the display panel PNL (transparent substrate SUB1) and the display control circuit substrate TCNS. is there.

  First, in the transparent substrate SUB1, the mark MRK1 is formed on the back surface of the transparent control substrate SUB1 where the display control circuit substrate TCNS is positioned. The mark MRK1 is formed simultaneously with the formation of, for example, the wiring layer WL1 formed in another region on the transparent substrate SUB1. By doing so, the mark MRK1 is formed at an accurate position with respect to the pattern of the wiring layer WL1 and the like formed on the transparent substrate SUB1.

  On the other hand, also on the display control circuit board TCNS, the mark MRK2 is formed in a portion arranged to face the back surface of the transparent substrate SUB1. This mark MRK2 is also formed simultaneously with the formation of, for example, the wiring layer WL2 formed in another region of the surface of the display control circuit board TCNS.

  The alignment of the display control circuit board TCNS with respect to the transparent substrate SUB1 is performed by confirming that the mark MRK2 is positioned at a predetermined position with respect to the mark MRK1 by visual observation through the transparent substrate SUB1.

Example 20.
In this embodiment, as shown in each of the embodiments described above, a display control circuit board TCNS is attached to the back surface of the display panel PNL, and then the display apparatus is operated by the display control circuit board TCNS. Indicates that an inspection is to be performed.

  Each of FIGS. 21A, 21B, 21C, and 21D is a flowchart showing a process of manufacturing different types of display devices. In each process, A is a process for forming the display panel PNL, B is a process for mounting the display control circuit board TCNS, C is a lighting inspection process, D is a subsequent component mounting process, E is a backlight BL mounting process, and F is a frame. FLM attachment process, G denotes an upper frame FFM attachment process, H denotes a connector substrate CNTS attachment process, and I denotes a monitor or notebook PC or TV housing attachment process.

  As will be clear from this, in any manufacturing process, after the display control circuit board TCNS is attached, the lighting control process, that is, the display control circuit board TCNS is operated to operate the display device. In the subsequent steps, the backlight BL, the frame FLM, the connector substrate CNTS, etc. are attached.

  In this case, since the display device can be driven with the same input signal as that in the completed state in the middle of the assembly of the display module, the inspection can be performed at an early stage of the assembly process. For this reason, since it is not necessary to use other parts wastefully due to the early shaking of defective products, the cost can be reduced.

  Further, when the correction is made after the inspection, since the correction can be started at an early stage of the assembly stage, a useless process can be avoided and the time and cost required for the correction can be reduced.

  Further, when the connector substrate CNTS is provided in a later assembly process separately from the display control circuit substrate TCNS, inspection can be realized regardless of the type of connector of the connector substrate CNTS. Therefore, the types of connectors of the inspection device can be unified, and the number of inspection devices can be reduced and the inspection time can be shortened.

  Each of the embodiments described above may be used alone or in combination. This is because the effects of the respective embodiments can be achieved independently or synergistically.

It is a block diagram which shows one Example of the display apparatus by this invention, and is a figure which shows the back surface of the display module. It is a figure which shows the cross section in the II-II line | wire of FIG. FIG. 6 is a configuration diagram showing another embodiment of the display device according to the present invention and corresponding to FIG. 2. It is sectional drawing which shows one Example of the display control circuit board and connector board | substrate shown in FIG. It is sectional drawing which showed one Example of a structure of the part of the display control circuit board arrange | positioned adjacent to the display panel PNL. FIG. 11 is a cross-sectional view showing another embodiment of the configuration of the display panel PNL and the portion of the display control circuit board disposed in the vicinity thereof. It is a block diagram which shows the other Example of the display apparatus by this invention, and is a figure which shows the connection aspect etc. of a display control circuit board and a connector board | substrate. It is a block diagram which shows the other Example of the display apparatus by this invention, and is a top view which shows the structure of the display panel PNL. It is a block diagram which shows the other Example of the display apparatus by this invention, and is a top view which shows the structure of the display panel PNL. FIG. 6 is a configuration diagram showing another embodiment of a display device according to the present invention, and is a diagram showing a connector for taking in external video data. It is a block diagram which shows one Example of the connector connected to cables, such as a flexible substrate. It is a top view which shows one Example of a structure of a connector board | substrate and a display control circuit board. It is a top view which shows the other Example of a structure of a display control circuit board. It is a top view which shows the other Example of a structure of a connector board | substrate and a display control circuit board. It is a top view which shows the Example of the connection aspect of the display panel PNL and a display control circuit board. It is a figure which shows the other Example of a structure of a display control circuit board. It is a figure which shows the other Example of a structure of a display control circuit board. It is a figure which shows the structure for making the position alignment with respect to the display panel PNL of a display control circuit board favorable. It is a figure which shows the other structure for making the position alignment with respect to the display panel PNL of a display control circuit board favorable. It is a figure which shows the other structure for making the position alignment with respect to the display panel PNL of a display control circuit board favorable. It is a flowchart which shows the Example of the manufacturing method of the display apparatus by this invention. FIG. 6 is an equivalent circuit diagram illustrating an embodiment of a display panel PNL of a display device according to the present invention.

Explanation of symbols

  SUB ... transparent substrate, GL ... gate signal line, DL ... drain signal line, TFT ... thin film transistor, PX ... pixel electrode, CT ... counter electrode, V ... scanning signal drive circuit, He ... video signal drive circuit, AR ... liquid crystal display unit , CNTS ... Connector board, CNT ... Connector, TCNS ... Display control circuit board, TCON ... Display control circuit, FPC ... Flexible board, UFM ... Lower frame, BL ... Backlight, CLP ... Clip, TCP, DRV ... Semiconductor device, DTL Data transfer wiring, VLL ... Power signal line, TAPE ... Adhesive tape, CBB ... Cable, FUS ... Fuse, DHM ... Data storage medium, VLS ... Power supply unit, CUT ... Notch, MRK ... Mark.

Claims (1)

A rectangular display panel, a plurality of video signal driving circuits, a plurality of scanning signal driving circuits, and a display control circuit;
Each of the video signal drive circuits is connected side by side on one side of the display panel,
Each of the scanning signal driving circuits is connected side by side on the other side of the display panel adjacent to the side to which the video signal driving circuit is connected,
Each of the scanning signal driving circuits is wired to be electrically connected in series on the display panel,
The video signal driving circuit is wired so as to be electrically connected in series on the display panel, and a power supply to the video signal driving circuit is connected via a power signal wiring board connected to the display panel. Electrically connected to the power signal line of the power signal wiring board to be performed,
A signal from the display control circuit to the scanning signal driving circuit is input to one of the scanning signal driving circuits and transmitted from the scanning signal driving circuit to the other scanning signal driving circuit.
Signal to the video signal driving circuit from the display control circuit, the is input to one of the video signal driving circuit, is fed heat from the video signal driver circuit to the other of the video signal driving circuit,
The display device, wherein the signal wiring between the scanning signal driving circuits is formed on the display panel.

Images