JP3885666B2 - Display device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a panel type display that can be wall-mounted or wall-mounted, such as a PDP (plasma display panel), LCD (liquid crystal display = liquid crystal display device), and organic EL (electroluminescence) display device. It relates to the device.
[0002]
[Prior art]
Conventionally, an air conditioner (air conditioner) is a typical example of an appliance made on the assumption that it is wall-mounted. After installing the air conditioner on the wall, the piping is taken out of the room, connected to an AC outlet near the AC cord only, and operated using a remote control.
[0003]
On the other hand, panel-type display devices such as PDPs, LCDs, organic EL display devices, and the like have come out on the premise that they are wall-mounted or wall-mounted. These appeal for the thinness of displays, and the selling point is to increase the efficiency of space utilization by wall hanging or wall shifting. However, it did not appeal to the ease of use as an AV (audio / video) device.
[0004]
[Problems to be solved by the invention]
These panel type display devices are assumed to be connected to other AV devices in some form, whether they are a display type or a television type with a built-in TV tuner.
[0005]
FIG. 8 is a front view of one embodiment when a PDP is used as a television receiver (hereinafter referred to as a PDP television) when viewed from the front. The two lower wires are AV cables. The hatched portion of the hatched line is a speaker portion. Similarly, FIG. 9 is a rear view of the PDP television of FIG. The AV cable is connected to an AV terminal provided at a protruding portion on the rear surface.
[0006]
10 is a top view of the PDP television shown in FIG. 8 as viewed from above. Similarly, FIG. 11 is a bottom view of the PDP television as shown in FIG. In this way, this PDP television has a design philosophy conscious of wall-hanging, and a method of connecting an AV cable perpendicularly to the rear surface with respect to the display unit cannot be taken like a conventional CRT television receiver. If an AV cable is connected vertically to the back, it is impossible to hang the back of the PDP TV on the wall. become. It is hard to say that this method is a wall-hanging method, and it does not look beautiful.
[0007]
8 to 11 show the method of connecting the AV cable from the lower side to the upper side with respect to the AV terminal facing downward, the AV terminal is provided on the side surface of the overhanging portion, and the AV cable is horizontally connected from the side surface. The same applies to the connection method.
[0008]
From the above, if only the video deck (VCR) was initially connected with an AV cable and installed on the wall, then if the AV cable was to be connected to another AV device such as a DVD player and a panel display device, it was set to the back. It is very difficult to connect the AV cable to the AV terminal, and there is a possibility that the connection of the AV cable may be wrong.
[0009]
In addition, panel type display devices such as 42V (42 inch visible) type and 50V (50 inch visible) type display devices with a large display area, such as PDPs, need to be removed from the wall, which is very inconvenient. There was a problem to say.
[0010]
The present invention solves these problems.
[0011]
[Means for Solving the Problems]
Since the panel type display device is thin, once installed, it is difficult to insert / remove to / from the AV terminal provided on the rear surface or rear surface. In particular, it is almost difficult to insert a new AV cable after installing it on each functional terminal. is there.
[0012]
Therefore, the display device of the present invention is a detachable AV terminal box means comprising an AV terminal group and a device internal connection connector that can be connected to the main body at once after a correct AV cable is inserted into the AV terminal. Detachable AV terminal in addition to the removable AV terminal box and the PDP TV main body internal connection terminal so that the guide rail as auxiliary means for correctly inserting the terminal box into the main body and the attached removable AV terminal box do not easily fall off Locking means for locking the box to the main body, means for confirming the electrical connection between the detachable AV terminal box and the main body, means for displaying the electrical connection state on the display, detachable AV terminal box Means for controlling power supply to the detachable AV terminal box according to the connection status is provided.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
One embodiment of the present invention will be described in each embodiment.
[0014]
(Embodiment 1)
FIG. 1 shows a first embodiment of the present invention. In FIG. 1, 1 is a PDP television provided with a PDP panel display unit, 2 is a detachable AV terminal box, and 3 is an AV terminal group included in the detachable AV terminal box.
[0015]
In the conventional PDP television shown in FIGS. 8 to 11, the approximate thickness is about 100 mm. When the PDP television is in a wall-hanging state as shown in FIG. 8 (the same is true in a wall-closed state), the AV cable must be connected to the AV terminal through a slight gap as shown in FIG. However, in the present invention, as shown in FIG. 2, only the detachable AV terminal box is removed from the PDP television fixed on the wall, and the AV cable can be connected to the AV terminal group 3 in an easy-to-understand manner after confirming the AV terminal function.
[0016]
Further, the detachable AV terminal box 2 can be attached to the PDP television 1 easily and sufficiently larger than the AV cable.
[0017]
(Embodiment 2)
FIG. 3 shows a second embodiment of the present invention. Reference numeral 4 in FIG. 3 is a guide rail for easily mounting the detachable AV terminal box 2 on the main body 1 of the PDP television. The state of the display device of (Embodiment 1) is made easier and safer, and the connector of the PDP television 1 and the connector of the detachable AV terminal box 2 are inadvertently and irregularly contacted when the detachable AV terminal box 3 is mounted. This reduces the risk of damaging the terminal surface.
[0018]
(Embodiment 3)
FIG. 4 shows a third embodiment of the present invention. Reference numeral 5 in FIG. 4 is a lock unit for more securely holding the detachable AV terminal box 2 on the PDP television 1 (panel display unit). Specifically, the PDP television 1 may be provided with a member for securely holding the detachable AV terminal box 2, and the detachable AV terminal box 2 is prevented from being detached by providing an engaging member for both. It is good also as a structure.
[0019]
Improved that the detachable AV terminal box 2 is easily disengaged from the PDP TV 1 of the main body due to the weight of the detachable AV terminal box 2 or the weight of the AV cable (the so-called high-class AV cable tends to be heavier) To do. (Panel display)
(Embodiment 4)
FIG. 5 shows a fourth embodiment of the present invention. In order to detect whether the detachable AV terminal box 2 is mechanically and physically connected to the PDP television 1 of the main body or is electrically connected completely, it is shown in FIG. ), A connector configured in 6 detachable AV terminal box 2, an AV switch for switching AV signal (hereinafter referred to as AV-SW), 8 is a connector on the PDP television 1 side, 9 Is a control unit for detecting the electrical connection status arranged in the PDP television 1, and 10 is pulled up by an arbitrary voltage connected to a port of the control unit 9 also arranged in the PDP television 1 Has a pull-up resistor.
[0020]
In order to detect whether or not the connector 6 and the connector 8 are correctly connected, the connector 6 and the connector 8 have two signal lines of a pull-up line and a GND line.
[0021]
In this case, if the connector 6 and the connector 8 are not connected, the connection detection port of the control unit 9 is pulled up by the pull-up resistor 10, and the control unit 9 detects unconnection in the H (high) state. .
[0022]
On the other hand, if both connectors are connected, the connection detection port of the control unit 9 is pulled up by the pull-up resistor 10, but since the pull-up resistor 10 is dropped to GND on the connector 6 side, The connection detection port becomes L (low), and it is detected that the connector 6 and the connector 8 are correctly connected.
[0023]
(Embodiment 5)
A fifth embodiment of the present invention will be described with reference to FIGS.
[0024]
In FIG. 5, reference numeral 11 denotes a video processing unit in which an AV signal switched by the AV-SW 7 in the detachable AV terminal box 2 is input through the connector 6 and the connector 8 and converted into a signal form corresponding to the panel display. It is. Reference numeral 12 denotes a PDP display unit that performs specific display of the panel type display device.
[0025]
In such a configuration, when the control unit 9 detects that it is not correctly connected, an RGB signal is sent to the video processing unit 11 using an internal OSD (on-screen display) function, and PDP display is performed. The unit 12 displays a warning message as shown in FIG.
[0026]
As described above, when the detachable AV terminal box 2 is not electrically connected to the PDP television 1 properly, a message for calling attention by the OSD (On Screen Display) function is displayed on the PDP display portion of the PDP television 1. 12, the user can immediately identify the cause of the malfunction of the PDP television 1.
[0027]
(Embodiment 6)
FIG. 5 shows a sixth embodiment of the present invention.
[0028]
In FIG. 5, reference numeral 13 denotes a power supply unit for the independent detachable AV terminal box 2. In principle, the detachable AV terminal box 2 is attached / detached when the power is normally off. This is described in the instruction manual, etc., and it is more useful to consider the countermeasures that are assumed even when the user is warned or when it is attached or detached during energization. The control unit 9 reads the status of the connection detection port at an arbitrary period.
[0029]
When the control unit 9 detects an electrical connection between the detachable AV terminal box 2 and the PDP television 1 using the connection detection port, the apparatus of the present invention performs the following procedure.
[0030]
First, connection detection is performed as a first step (step 1). Next, when the detachable AV terminal box 2 and the main body of the PDP television 1 are correctly connected, the power supply unit 13 is turned on to supply power to the AV-SW 7 or the like via the connector 8 and the connector 6. (Step 2). If power is already supplied, that state is maintained.
[0031]
On the other hand, when the detachable AV terminal box 2 and the main body of the PDP television 1 are not correctly connected, the control unit 9 turns off the power supply to the power supply unit 13.
[0032]
Next, when it is confirmed that the connection detection port is unconnected and connected, the control unit 9 turns on the power supply unit 13 after confirming that the connection is arbitrarily made. When connection or non-connection is confirmed at the connection detection port, in this case, the power supply unit 13 is turned off immediately after an arbitrary time (step 3).
[0033]
As described above, by automatically detecting the connection state of the detachable AV terminal box 2 and the PDP television 1, it is possible to prevent an electrical failure even when it is not correctly connected to the main body. is there.
[0034]
(Embodiment 7)
FIG. 7 shows a seventh embodiment. In FIG. 7, reference numeral 14 denotes a second locking means in which an electrical SW is added to the locking means of FIG. Reference numeral 15 denotes a second pull-up resistor that is pulled up with an arbitrary voltage connected to the second connection detection port 30 of the control unit 9.
[0035]
The detachable AV terminal box 2 is generally attached / detached when the power is turned off. This is described in the instruction manual, etc., and it is more useful to consider the countermeasures that are assumed even when the user is warned or when it is attached or detached during energization.
[0036]
The controller 9 reads the statuses of the plurality of connection detection ports at an arbitrary period. When the control unit 9 detects an electrical connection using the second connection detection port 30, the operation is performed according to the following procedure.
[0037]
First, connection detection between the detachable AV terminal box 2 and the PDP television 1 is performed (step 1). When both are connected, the power supply unit 13 is turned on to supply power to the AV-SW 7 and the like via the connector 8 and the connector 6 (step 2). If the power is already supplied, that state is maintained. On the other hand, when both are not connected, the control unit 9 turns off the power supply to the power supply unit 13.
[0038]
Next, when it is confirmed that the second connection detection port 30 is not connected and connected, the control unit 9 turns on the power supply unit 13 after confirming the connection on an arbitrary number of times (step 3).
When the second connection detection port 30 confirms a change in state from connected to unconnected, the power supply unit 13 is turned off immediately, not after an arbitrary time. In particular, the sequence corresponding to power supply OFF from connection to non-connection can be detected earlier than when the second connection detection port is manually unlocked rather than the first connection detection port.
[0039]
【The invention's effect】
As described above, according to the present invention, the use of the detachable AV terminal box makes it possible to obtain an extremely excellent effect that the AV cable of the panel type display device can be pulled out easily.
[0040]
In addition, since the electrical connection is sufficiently considered, the detachable AV terminal box can be used even when the main body is energized, so that it can be used as a so-called active insertion / extraction. Can also be obtained.
[Brief description of the drawings]
FIG. 1 is a rear view showing a rear surface of a display device according to a first embodiment of the present invention. FIG. 2 is a front view showing a usage state of the display device. FIG. 4 is a rear view showing the rear surface of the display device according to the third embodiment of the present invention. FIG. 5 is a block diagram of the display device according to the fourth embodiment, the fifth embodiment, and the sixth embodiment of the present invention. FIG. 6 is a front view showing a display example of a warning screen in the display device in the fifth embodiment. FIG. 7 is a block diagram of the display device in the seventh embodiment. Front view of the PDP television [FIG. 9] Rear view of the PDP television [FIG. 10] Top view of the PDP television [FIG. 11] Bottom view of the PDP television [Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 PDP television 2 Detachable AV terminal box 3 AV terminal group 4 Guide rail 5 First locking means 6 Connector 7 AV-SW
8 Connector 9 Control unit 10 First pull-up resistor 11 Video processing unit 12 PDP display unit 13 Power supply unit 14 Second lock unit 15 Second pull-up unit

Claims (5)

A display device that can be connected to an AV device and can be mounted on a wall, wherein a panel display unit that outputs an image output from the AV device and an AV cable for connecting the AV device and the display device can be connected An AV terminal box; and a guide rail that is installed on a rear surface of the panel display unit and capable of joining the AV terminal box between a rear surface of the panel display unit and a wall surface on which the display device is installed. A display device, wherein the box is detachable from the guide rail. The AV terminal box is connected to the guide rail in a horizontal direction with the panel display unit. The display device according to claim 1, further comprising a lock unit for holding the AV terminal box in the display device. 4. The display device according to claim 1, further comprising means for confirming whether or not the AV terminal box is electrically joined to the display device. The display device energizes the AV terminal box when detecting that the AV terminal box is electrically connected, and detects the AV terminal box when the AV terminal box is removed. 5. The display device according to claim 4, wherein power supply to the box is stopped.

Images