JP4299737B2 - Display device and electronic apparatus using the display device - Google Patents

Description

Input equipment, such as the present invention is for example a touch panel, in particular, without using an adhesive member such as double-sided tape, can be reliably fixed to the housing at low cost, appropriate responses can be input instrumentation miniaturization The present invention relates to a display device using a display, and an electronic apparatus using the display device.

  Conventionally, in order to fix and support an input device such as a touch panel at a predetermined interval above a display member such as a liquid crystal display, a fixing method as shown in FIG. 6 has been used.

FIG. 6 is a partial cross-sectional view of a conventional input device.
The input device 101 includes a lower substrate 102 formed of a glass substrate or the like, a film-like upper sheet 106, a resistance film and electrodes (not shown) formed on the lower substrate 102 and the upper sheet 106, and the like.

  As shown in FIG. 6, a display member 105 is incorporated in the housing 104, and the input device 101 is incorporated above the display member 105 with a predetermined interval.

  From the inner wall surfaces 104a and 104b of the housing 104, a mounting portion 104c for mounting the input device 101 in the housing 104 is formed to protrude, and the input device 101 is joined to the mounting portion 104c by a double-sided tape or the like. It is fixedly supported by the member 103.

The following Patent Document 1 discloses a touch panel fixing method as shown in FIG.
As shown in FIG. 7, a plurality of positioning and fixing attachment / detachment jigs 204 are provided on the periphery of the opening 205 on the upper surface of the case main body 202 that houses and fixes the liquid crystal display panel 201. The touch panel 203 is positioned and fixed to the integration case 206 by a jig 204.

  The following Patent Document 2 discloses a display device shown in FIG. 8 and a method for arranging a transparent touch panel with respect to the display device shown in FIG.

  As shown in FIG. 8, the periphery of the liquid crystal display device 301 is held by a bezel 302. Tongue pieces 303, 304, 305, and 306 are formed on all four sides of the bezel 302, and all these tongue pieces are erected vertically upward as shown in FIG. Although the tongue pieces 305 and 306 are not shown, the tongue piece 305 is provided in a position facing the tongue piece 303 in the bezel 302, and the tongue piece 306 faces the tongue piece 304 in the bezel 302. Provided in position). In the following, among the surfaces of the raised tongue pieces, the surface on the liquid crystal display device 301 side, for example, a surface at a position such as 303a is defined as the standing surface.

First, the transparent touch panel 307 is brought into contact with the standing surface 303a of the tongue piece 303 and the standing surface of the tongue piece 304, which are orthogonal to each other, and positioned. Thereafter, all the tongue pieces are bent, and the transparent touch panel 307 is pressed and fixed on the liquid crystal display device 301.
JP-A-8-212359 Japanese Patent Laid-Open No. 7-160423

  However, in recent years, electronic devices that are equipped with the input device and the display device have become smaller. Therefore, in the conventional method of fixing the input device 101 shown in FIG. 6, the amount of bonding of the bonding member 103 provided on the lower surface 102a of the lower substrate 102 is reduced, and the bonding strength between the lower surface 102a of the lower substrate 102 and the support member 104c is reduced. The input device 101 cannot be securely fixed and supported in the housing 104.

On the other hand, also in the downsizing of the input device 101, if the bonding amount of the bonding member 103 is increased, the bonding member 103 may protrude beyond the operation area of the input device 101 (so-called dead zone increases), or The image sharpness of the image projected via the input device 101 is adversely affected by entraining dust between them.
Moreover, since the joining member 103 such as a double-sided tape is expensive, the manufacturing cost is increased.

  Furthermore, if the input device 101 is fixed in the housing 104 by the joining member 103, for example, when the input device 101 breaks down and it is desired to replace the input device 101 or to remove the input device 101 for recycling. In addition, it has a structure with poor repairability and recyclability, such as it takes time to remove the input device 101.

  On the other hand, in the invention described in Patent Document 1, in order to position and fix the touch panel 205, the jig 204 must be provided separately from the case main body 202, and the cost for providing the jig 204 is high.

  Further, in Patent Document 1, since the jig 204 protrudes from the upper surface of the touch panel 203, the protruding portion becomes a dead zone, and the operation area of the touch panel 203 becomes narrow. Moreover, since the jig 204 protrudes from the upper surface of the touch panel 203, an actual product requires another member (frame member) for covering the jig 204 and making it invisible from the surface.

  Also in the invention described in Patent Document 2, a part of the upper surface of the transparent touch panel 307 is covered with the bezel 302 as in the Patent Document 1, so that the covered portion becomes a dead zone, and the transparent touch panel 307 is covered. The operation area becomes narrower.

  As shown in FIG. 9, when the transparent touch panel 307 is fixed and supported by bending the tongue piece upright and the upper surface of the transparent touch panel 307 is pushed downward by the tongue piece, the transparent touch panel 307 is It tends to bend downward, and as a result, the displayed image tends to be adversely affected, such as the image from the liquid crystal display device 301 being distorted without being properly transmitted.

Accordingly, the present invention solves the above-described conventional problems, and in particular, can be securely fixed to the housing at low cost without using a joining member such as a double-sided tape, and is suitable for downsizing. a display device using a compatible input equipment, and has an object to provide an electronic device using the display device.

According to a first aspect of the present invention, there is provided a flexible upper sheet having a resistance film formed on a lower surface thereof, and a lower substrate formed of a plastic member and having a resistance film formed on an upper surface thereof. An input device that is arranged at a predetermined interval from the substrate and that detects the plane coordinates of the pressing point when the operation area of the upper sheet is pressed toward the lower substrate, and the lower side of the input device In a display device having a display member provided in a housing, and a housing for fixing and supporting the input device and the display member,
On each of two opposing side surfaces of the lower substrate, fitting convex portions toward the inner wall surface of the housing are integrated with the lower substrate and thinner than the film thickness in the operation region of the lower substrate. The film is injection-molded outside the side surface of the upper sheet, and on the inner wall surface of the housing, a fitting concave portion is provided at a position facing the fitting convex portion,
A plurality of the fitting convex portions are formed on each of two opposing side surfaces of the lower substrate at intervals in a direction perpendicular to the thickness of the lower substrate,
Is characterized in that the plurality of fitting convex portions and the fitting concave portion and the input device is inserted into said housing is convex-concave engagement.

  In the present invention, a fitting portion formed on the lower substrate of the input device is used to fit the housing, and thereby the input device can be fixedly supported in the housing. For this reason, it is possible to incorporate the input device into the housing at a low cost without using a joining member such as a double-sided tape as in the prior art. Can be fixed. In addition, unlike the case where an adhesive or the like is used, there is no inconvenience such as adhesion of an adhesive to unnecessary portions, the mounting work is simple, and the repair performance and recyclability are excellent.

  In the present invention, since the input device is fitted into the housing using the fitting portion formed on the side edge of the lower substrate, the input device is mounted in the housing at a position outside the operation area of the input device. It is easy to reduce the dead zone appropriately.

As described above , since the fitting portion is provided at a position deviated from the side surface of the upper sheet to the outside, it is possible to appropriately prevent the occurrence of a dead zone without restricting the operation area by forming the fitting portion.

  If the lower substrate is formed of a plastic member, the lower substrate can be injection-molded, whereby the fitting portion can be injection-molded integrally with the lower substrate at the side end of the lower substrate.

  In the present invention, as described above, the concave and convex fitting between the lower substrate of the input device and the inner wall surface of the housing allows the input device to be easily fixed and held in the housing without using double-sided tape or the like as in the prior art. .

  Further, in the present invention, it is preferable that the input device is fixedly held on the casing by concave-convex fitting so that the positioning of the input apparatus in the casing can be simplified, and repairability and recyclability can be improved.

  In particular, in the present invention, since the input device is fitted in the housing by the concave and convex fitting between the side surface of the lower substrate constituting the input device and the inner wall surface of the housing, the dead zone can be appropriately reduced. .

  By forming the fitting convex portion formed on the lower substrate with a thin film thickness, it becomes easy to fit the housing to the concave and convex portions.

The second aspect of the present invention includes a flexible upper sheet having a resistance film formed on the lower surface and a lower substrate having a resistance film formed on the upper surface, and the upper sheet and the lower substrate have a predetermined interval. And an input device for detecting the plane coordinates of the pressing point when the operation area of the upper sheet is pressed toward the lower substrate, and a display member provided below the input device And a display device having a housing for fixing and supporting the input device and the display member,
At least from two opposite side end portions of the lower substrate, fitting convex portions are integrally formed with the lower substrate toward the wall surface of the housing, and the wall surface of the housing is formed on the wall surface of the housing. The fitting concave portion is provided at a position facing the fitting convex portion,
Outside the operation area of the upper sheet, a slit is formed at a position along the fitting convex portion,
The fitting convex part in which the said slit was formed is inserted in the said fitting concave part, and the said input device and the said housing | casing are unevenly fitted, It is characterized by the above-mentioned.
In the above, it is preferable that the wall surface of the housing that is continuous with the fitting concave portion is formed by an inclined surface that is inclined toward the protruding direction of the fitting convex portion as the distance from the fitting concave portion is increased. .

In the above, looking at the slit from the upper sheet side, it is preferable that the slit is formed along the direction of the wall surface of the housing. If it does in this way, it will become possible to perform uneven fitting with a case more appropriately and easily.

  An electronic apparatus according to the present invention is equipped with any of the display devices described above.

  In the present invention, the lower substrate constituting the input device is formed by injection molding, whereby the fitting portions can be integrally formed with the lower substrate at least at the opposite side edges of the lower substrate. .

  In the present invention, a fitting portion formed on the lower substrate of the input device is used to fit the housing, and thereby the input device can be fixedly supported in the housing. For this reason, the input device can be incorporated into the housing at a low cost without using a joining member such as a double-sided tape as in the prior art, and the input device is securely fixed in the housing even when the input device is downsized. can do. Further, unlike the case where an adhesive or the like is used, there is no problem such as adhesion of the adhesive to unnecessary portions, the mounting work is simple, and the repairability and recyclability are excellent.

  FIG. 1 is a cross-sectional view showing a display device having an input device according to the first embodiment of the present invention, and FIGS. 2A and 2B are plan views showing a lower substrate according to the embodiment of the present invention.

  As shown in FIG. 1, an input device 1 according to the present invention includes an upper sheet 2 and a lower substrate 3, and has a predetermined interval H above a display panel 4 on which a liquid crystal display or the like is formed. Positioned and fixed to the body 5.

  The upper sheet 2 is made of a synthetic resin such as transparent polyethylene terephthalate (PET) and has flexibility. A resistance film (not shown) is formed on the entire lower surface 2a of the upper sheet 2 with a predetermined thickness. ing. The resistance film is formed by sputtering or vacuum deposition using ITO (indium tin oxide) as a raw material. On the resistance film, a pair of upper electrodes (not shown) made of silver or the like formed in parallel at an interval in the X1-X2 direction is formed, and an operation region 21 is formed between the upper electrodes. .

  The lower substrate 3 is a transparent plastic substrate, and a resistance film (not shown) made of ITO is formed on the entire upper surface 3 a of the lower substrate 3. On the resistance film, a pair of lower electrodes (not shown) made of silver or the like formed in parallel with an interval in the Y1-Y2 direction is formed, and an operation region 31 is formed between the lower electrodes. .

  As shown in FIG. 1, the upper sheet 2 has the resistance film formed on the lower surface 2 a opposed to the resistance film formed on the lower substrate 3, and the upper electrode formed on the upper sheet 2 is placed on the lower substrate 3. The formed lower electrode is disposed on the side where it does not exist, and is combined by the insulating spacer 6 so as to face the lower substrate 3 with a predetermined interval.

  For example, when an arbitrary position in the operation area 21 of the upper sheet 2 is pressed downward with an input pen or the like (not shown), the upper sheet 2 is first deformed downward and the upper sheet 2 is moved between the operation areas 21 and 31. The resistance film formed on the substrate and the resistance film formed on the lower substrate 3 come into contact with each other.

  In the X coordinate detection at the pressing point, when a voltage is applied between the upper electrodes of the upper sheet 2, a potential gradient is generated between the upper electrodes due to the resistance of the resistance film formed on the lower surface 2 a of the upper sheet 2. When the potential at the pressing point is detected through the lower substrate 3, the X coordinate at the pressing point can be known.

  In the Y coordinate detection at the pressing point, when a voltage is applied between the lower electrodes of the lower substrate 3, a potential gradient is generated between the lower electrodes due to the resistance of the resistance film formed on the upper surface 3 a of the lower substrate 3. If the potential at the pressing point is detected through the upper sheet 2 side, the Y coordinate at the pressing point can be known.

  The casing 5 is formed by injection molding, and holds the display panel 4 fixedly, holds the light guide member (backlight) 7, or holds both the display panel 4 and the light guide member 7 fixedly. Is for.

  The display panel 4 and the light guide member 7 are combined to form a display member. In the present invention, the housing 5 for fixing and supporting the display member is also used as the housing of the input device 1.

  As shown in FIG. 1, the housing | casing 5 has side wall part 5a, 5b and the bottom part, and the upper surface side is open | released. In FIG. 1, the side wall on the X1 side is the left side wall 5a, and the side wall on the X2 side is the right side wall 5b. The side walls 5a and 5b are made of white ABS resin (acrylonitrile butadiene styrene copolymer) in order to efficiently reflect the light from the light guide member (backlight) 7 inside the housing 5.

  As shown in FIG. 1 and FIG. 2A, fitting projections projecting in the direction of the side walls 5 a and 5 b of the housing 5 respectively on the left side surface 3 c on the X1 side and the right side surface 3 d on the X2 side of the lower substrate 3. The parts 30 a and 30 a are injection-molded integrally with the lower substrate 3.

  As shown in FIG. 2A, the fitting convex portion 30a has a rail shape formed along the left side surface 3c and the right side surface 3d.

  Further, as shown in FIG. 1, fitting concave portions 5a1 and 5b1 are formed on the inner wall surfaces 5a2 and 5b2 of the side wall portions 5a and 5b of the housing 5 at positions facing the fitting convex portions 30a. The fitting convex portions 30a, 30a of the lower substrate 3 are concavo-convexly fitted to the fitting concave strip portions 5a1, 5b1 formed on the inner wall surfaces 5a2, 5b2 of the casing 5, respectively, so that the input device 1 is Positioning and fixing within 5.

  In the present invention, the lower substrate 3 constituting the input device 1 is used for injection molding, and a characteristic part is that the fitting convex portion 30a is integrally formed with the lower substrate 3 by injection molding. is there.

  By forming the lower substrate 3 using, for example, a plastic material, the lower substrate 3 can be injection-molded, and the fitting convex portion 30a formed on the lower substrate 3 by the injection molding is provided with a housing. It can be formed in various shapes according to the shape of the inner side surfaces 5a2 and 5b2 on the 5 side.

  In the present invention, the fitting convex portions 30a formed on the lower substrate 3 of the input device 1 are used to fit the concave and convex portions 5a1 and 5b1 of the housing 5 so that the input device 1 can be fitted to the housing 5. It can be fixedly supported inside. For this reason, the input device 1 can be incorporated into the housing 5 at a low cost without using a joining member such as a double-sided tape as in the prior art. It can be securely fixed in the housing 5. Further, unlike the case where an adhesive or the like is used, there is no problem such as adhesion of the adhesive to unnecessary portions, the mounting work is simple, and the repairability and recyclability are excellent.

  In the present invention, the fitting convex portion 30a formed on the lower substrate 3 is required to be formed on at least two opposite side surfaces 3c and 3d as shown in FIGS. Thereby, the input device 1 can be fixedly held in the housing 5 without using an adhesive or the like.

  In order to more securely fix and hold, fitting convex portions 30a are preferably formed on the three side surfaces of the lower substrate 3 and all the side surfaces (four side surfaces). However, in particular, when the fitting convex portions 30a are formed on all the side surfaces, it takes time for the assembling work into the housing 5, and the fitting convex portions 30a are formed on all four side surfaces. In fact, when the lower substrate 3 is injection-molded, the lower substrates 3 are connected by a gate, so it is difficult to form the fitting convex portion 30a on the side surface on which the gate is provided. Therefore, it is sufficient that the fitting convex portion 30a is formed on the two opposite side surfaces of the lower substrate 3 or on the three side surfaces.

  Although the fitting convex part 30a of FIG. 2A is a rail shape extended long along the side surfaces 3c and 3d, it was the form by which the fitting convex part 30a was formed one each on each side surface 3c and 3d, As shown in FIG. 2B, a plurality of fitting convex portions 30a may be formed on the side surfaces 3c and 3d at intervals in the side surface 3c and 3d directions.

  As shown in FIG. 1, mounting portions 52 and 52 for mounting the input device 1 are provided on the inner wall surfaces 5a2 and 5b2 of the housing 5 below the fitting concave portions 5a1 and 5b1. The input device 1 is placed on the placement unit 52.

  In the present invention, since the input device 1 can be incorporated into the casing 5 by fitting the concave and convex portions with the casing 5, the mounting section 52 is not necessarily required, but the mounting section 52 should be provided. In a state where the input device 1 is placed on the placement portion 52, the input device 1 and the housing 5 can be engaged with each other. For this reason, the workability | operativity of the said uneven | corrugated fitting can be improved, and when the input device 1 is integrated, the malfunction of hitting the input device 1 on the display panel 4 accidentally can also be suppressed.

  Moreover, the input device 1 can be positioned by both the mounting portion 52 and the fitting portion, and the positioning accuracy of the input device 1 can be improved.

  Further, in the present invention, when the mounting portion 52 is provided, there is no need for a joining member such as a double-sided tape between the mounting portion 52 and the input device 1 as in the prior art, and the input device 1 is mounted. Even if the input device 1 is placed directly on the portion 52, the input device 1 can be securely fixed and supported in the housing 5 by concave and convex fitting with the housing 5.

  In the present invention, since the lower substrate 3 is formed of a plastic material as described above, the fitting convex portion 30a is formed so as to protrude outward from the side surface of the upper sheet 2 as shown in FIG. However, since the fitting convex portion 30a is elastically deformed, when the input device 1 is incorporated into the housing 5, the fitting convex portion 30a is fitted into the fitting concave portions 5a1 and 5b1 formed on the inner wall surfaces 5a2 and 5b2 of the housing 5. The joint convex portion 30a can be elastically deformed and inserted, so that workability can be maintained well.

  In particular, as shown in FIG. 1, when the fitting convex portion 30 a is formed so as to protrude outward from the side surface of the upper sheet 2, the fitting portion between the lower substrate 3 and the housing 5 is operated by the upper sheet 2. Since it is provided at a position distant from the region 21, the fitting portion does not extend into the operation region 21, and a so-called dead zone that cannot function as the operation region is appropriately suppressed. Can do.

  The dead zone has become a serious problem especially with the miniaturization of the input device 1, and the operation region 21 itself is also reduced by the miniaturization of the input device 1, so the occurrence of the dead zone further narrows the operation region 21. That is not preferable. Although Patent Document 1 and Patent Document 2 have a structure in which a dead zone is likely to occur, in the present invention, the fitting portion between the lower substrate 3 and the housing 5 is outside the operation region 21 of the upper sheet 2. By providing, the occurrence of the dead zone is eliminated, and the operation area 21 can be widened even when the input device 1 is downsized.

  Further, in the above description, the fitting convex portions 30a and 30a formed on the lower substrate 3 are made of plastic material and thus elastically deformed. However, in order to make the elastic deformation easier, as shown in FIG. Furthermore, it is preferable to form the fitting convex portions 30 a and 30 a with a thickness smaller than the thickness in the operation region 31 of the lower substrate 3. In the present invention, since the fitting convex portions 30a and 30a are injection-molded, it is easy to form the fitting convex portions 30a and 30a with a film thickness different from the thickness in the operation region 31 of the lower substrate 3. Can be.

  As described above, the fitting convex portions 30a and 30a are formed by forming the fitting convex portions 30a and 30a formed on the lower substrate 3 to be thinner than the film thickness in the operation region 31. Can be easily elastically deformed, and the fitting convex portions 30a and 30a can be elastically deformed to be easily inserted into the fitting concave portions 5a1 and 5b1.

Alternatively, as shown in FIG. 3 (FIG. 3A is a plan view showing a lower substrate of another modification of the present invention, and FIG. 3B is a partially enlarged sectional view of a display device having an input device), the fitting convex portion It is preferable to form the slit 30c in 30b. The slit 30c is a through-hole penetrating from the upper surface to the lower surface of the fitting convex portion 30b. Since the present invention is formed by injection molding the fitting convex shaped portion 30b, as possible out it is possible to easily form the slit 30c in the fitting convex-shaped portion 30b.

  When the slit 30c is viewed from directly above, the slit 30c is preferably formed along the direction of the inner wall surfaces 5a2 and 5b2 of the housing 5.

  As shown in FIG. 3, when the slit 30c is provided in the fitting convex portion 30b, the fitting convex portion 30b is easily expanded and contracted in the X1-X2 direction. In particular, if the slit 30c is formed along the Y1-Y2 direction which is the direction of the inner wall surfaces 5a2 and 5b2 of the housing 5, the fitting convex portion 30b is X1-X2 perpendicular to the Y1-Y2 direction. It can be expanded and contracted appropriately depending on the direction.

  For this reason, by providing the slit 30c in the fitting convex portion 30b, the fitting convex portion 30b can be more elastically deformed, and the fitting convex portion 30b can be easily fitted into the fitting concave portion 5a1.

  Further, as shown in FIG. 3B, when the inner wall surface 5a4 of the housing 5 on the fitting concave portion 5a1 is formed with an inclined surface inclined in a direction away from the input device 1 from below to above, the input device 1 is formed. When the fitting convex portion 30b of the input device 1 is mounted in the housing 5, the fitting convex portion 30b is gradually contracted in the direction of the side surfaces 3c and 3d of the lower substrate 3 due to the inclination on the inner wall surface 5a4. , Can be guided to the fitting concave portion 5a1. For this reason, the effect | action which contracts the fitting convex part 30b forcibly does not arise, the positioning fixing work to the housing | casing 5 of the input device 1 becomes simpler, work efficiency improves more, and the fitting convex part 30b. Can be prevented from being damaged. The inclined surface shape of the inner wall surface 5a4 may be applied to the embodiment shown in FIGS.

  As shown in FIG. 1 to FIG. 3, in the present invention, the input device 1 is fixed in the housing 5 by concave and convex fitting between the lower substrate 3 and the housing 5. For this reason, there is no need for a separate member or the like for pressing the input device 1 from the upper surface side of the input device 1 as in the above-mentioned Patent Literature 1 and Patent Literature 2, and the upper portion of the input device 1 as shown in FIGS. The surface of the sheet 2 and the upper surface of the housing 5 can be substantially flush. As described above, when the surface of the upper sheet 2 of the input device 1 and the upper surface of the housing 5 are made flat, the operator can easily operate the surface (operation surface) of the input device 1 and has excellent operability. .

4A is a cross-sectional view showing an input device according to a reference example of the present invention, and FIG. 4B is a plan view of a lower substrate.

Unlike the embodiment of FIGS. 1 to 3, the lower substrate 3 of this reference example has a fitting concave portion that is recessed in the direction of the operation region 31 on the left side surface 3 c on the X1 side and the right side surface 3 d on the X2 side. 30d is formed to be recessed along the left side surface 3c and the right side surface 3d. On the other hand, the inner wall surfaces 5a2 and 5b2 of the housing 5 are provided with fitting convex portions 51, 5 at positions facing the fitting concave portion 30d. 51 is protrudingly formed.

  In the present invention, the fitting concave portions 30d formed on the lower substrate 3 are used to fit the concave and convex portions 51, 51 of the housing 5 so that the input device 1 is fixedly supported in the housing 5. It becomes possible to do. For this reason, the input device 1 can be incorporated into the housing 5 at a low cost without using a joining member such as a double-sided tape as in the prior art. It can be securely fixed in the housing 5. Further, unlike the case where an adhesive or the like is used, there is no problem such as adhesion of the adhesive to unnecessary portions, the mounting work is simple, and the repairability and recyclability are excellent.

  In the present invention, the fitting concave portion 30d formed on the lower substrate 3 is required to be formed on at least two opposite side surfaces 3c and 3d as shown in FIG. The apparatus 1 can be fixed and held in the housing 5 without using an adhesive or the like.

  The depth of the fitting concave portion 30d in the X1-X2 direction is at least before reaching the operation region 31 shown in FIG. 4B. As a result, the occurrence of a dead zone can be suppressed and the operation area can be widened.

  FIG. 5 is a partial enlarged sectional view showing a display device having an input device according to another embodiment of the present invention.

  In the lower substrate 3 in the present embodiment, a substantially L-shaped flange portion 30 e extending in a direction protruding downward from the lower surface 3 b is injection-molded integrally with the lower substrate 3.

  As shown in FIG. 5, a mounting portion 52 extending in the direction inside the housing 5 is provided on the inner wall surface 5 a 2 of the housing 5, and the input device 1 is placed on the mounting portion 52.

  As shown in FIG. 5, the mounting portion 52 is provided with a through hole 53 that penetrates from the upper surface 52a to the lower surface 52b.

  As shown in FIG. 5, the input device 1 is placed on the placement portion 52, and the flange portion 30 e provided on the lower substrate 3 of the input device 1 passes through the through hole 53 of the placement portion 52. Thus, the input device 1 and the housing 5 are fitted.

Although not shown in the figure, similarly on the inner wall surface 5b2 side opposite to the inner wall surface 5a2, the lower substrate 3 is formed with a flange portion 30e, and the flange portion 30e is formed from the inner wall surface 5b2. It is fitted in the through hole 53 of the mounting portion 52.
As described above, the input device 1 can be positioned and fixed to the housing 5.

  In the present invention, the flange 30e formed on the lower substrate 3 of the input device 1 is fitted into the through holes 53, 53 of the housing 5, thereby fixing and supporting the input device 1 in the housing 5. Is possible. For this reason, even if the input device 1 is placed directly on the placement portion 52 without using a joining member such as a double-sided tape on the placement portion 52, the input device 1 can be fixedly held in the housing 5. Moreover, even when the input device 1 is downsized, the input device 1 can be reliably fixed in the housing 5. In addition, unlike the case where an adhesive or the like is used, there is no inconvenience such as adhesion of an adhesive to an unnecessary portion, low cost, easy mounting work, and excellent repair and recyclability.

  In the present invention, it is only necessary that a fitting portion for fitting the input device 1 to the housing 5 is injection-molded integrally with the lower substrate 3 at each of opposite side ends of the lower substrate 3. . The fitting portion may be formed from the side surfaces 3c and 3d of the lower substrate 3 as shown in FIGS. 1 to 4, or may be formed from the lower surface 3b of the lower substrate 3 as shown in FIG. And if the said fitting part is provided from the side edge part surrounding the circumference | surroundings of the said center part instead of the center part (at least operation area | region 31) of the lower board | substrate 3, the position in particular formed will not be limited.

  The lower substrate 3 of the present invention is formed of a plastic material, and is particularly preferably formed of a norbon-based transparent resin. The norbon-based transparent resin has a high light transmittance, and birefringence hardly occurs inside the lower substrate 3. For this reason, the image displayed on the display panel 4 is clearly displayed, and the image or the like can be reliably viewed from above. Further, the norbon-based transparent resin is excellent in heat resistance, can withstand high temperatures during injection molding, and can reduce warping during molding of the lower substrate 3. Further, the norbon-based transparent resin is excellent in moisture resistance and can prevent a change in strength of the lower substrate 3 due to moisture absorption.

  In the display device having the input device 1 shown in FIGS. 1 to 5, the input device 1 can be appropriately fixed and held in the housing 5 without using an adhesive or the like, and the display provided in the housing 5. It can be opposed to the panel 4 with a predetermined distance H. Therefore, an image or the like projected from the display panel 4 is clearly and reliably projected through the input device 1 without being distorted. Further, the input device 1 is reliably positioned and fixed to the housing 5 with a predetermined distance H from the display panel 4. For this reason, it is possible to prevent the display panel 4 from being distorted or damaged when the input device 1 is detached from the housing 5 and collides with the display panel 4 due to an external force or the like. As a result, the reliability of the display device of the present invention is not impaired, and a clear image is displayed from the display device of the present invention.

  The display device on which the input device 1 of the present invention is mounted as described above can be mounted on an electronic device such as a PDA (personal digital assistant), a palm-sized small personal computer, or a mobile phone.

  Such an electronic apparatus includes the input device 1 of the present invention, and the input device 1 is positioned and fixed to the housing 5 as described above, so that the input device 1 can be used even when the housing 5 is small. Is securely positioned and fixed to the housing 5. For this reason, even in a small electronic device such as a PDA, the reliability of the input device 1 is prevented from being impaired, and desired information can be reliably input by the input device 1.

The fragmentary sectional view showing the display which has the input device of the embodiment of the present invention, 2A and 2B are plan views showing a lower substrate of the present invention, 3A is a plan view showing a lower substrate in a form different from that in FIG. 2, FIG. 3B is a partially enlarged cross-sectional view showing a display device having an input device in another embodiment different from FIG. 4A is a partial sectional view showing a display device having an input device of a reference example of the present invention, FIG. 4B is a plan view showing a lower substrate used in FIG. 4A, The partial expanded sectional view which shows the display apparatus which has the input device of another embodiment of this invention, Partial sectional view showing a conventional input device, The figure which shows the fixing method of the conventional touch panel, A perspective view showing a conventional display device, The figure which shows the arrangement | positioning method of the transparent touch panel with respect to the display apparatus of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Input device 2 Upper sheet | seat 3 Lower board | substrate 4 Display panel 5 Housing | casing 5a, 5b Side wall part 5a1, 5b1, 30d Fitting concave part 21, 31 Operation area | region 30a, 30b, 51 Fitting convex part 30c Slit 30e Gutter part 52 Placement part 53 Through hole

Claims (5)

A flexible upper sheet having a resistance film formed on the lower surface and a lower substrate formed of a plastic member and having a resistance film formed on the upper surface, the upper sheet and the lower substrate having a predetermined interval. An input device that is disposed in a space and detects a plane coordinate of the pressing point when the upper sheet is pressed toward the lower substrate , and a display member provided on the lower side of the input device; In the display device having a housing for fixing and supporting the input device and the display member,
On each of two opposing side surfaces of the lower substrate, fitting convex portions toward the inner wall surface of the housing are integrated with the lower substrate and thinner than the film thickness in the operation region of the lower substrate. the side surface of the upper sheet with a thickness is injection molded on the outside, on the inside wall surface of the housing, the fitting concave portion is provided in a position opposed to the engaging convex portion,
A plurality of the fitting convex portions are formed on each of two opposing side surfaces of the lower substrate at intervals in a direction perpendicular to the thickness of the lower substrate,
The display device, wherein the plurality of fitting convex portions are inserted into the fitting concave portions, and the input device and the housing are fitted in an uneven manner. A flexible upper sheet having a resistance film formed on a lower surface thereof, and a lower substrate having a resistance film formed on an upper surface thereof, wherein the upper sheet and the lower substrate are arranged at a predetermined interval, An input device that detects the plane coordinates of the pressing point when the operation area of the upper sheet is pressed toward the lower substrate, a display member provided on the lower side of the input device, and the input device and display In a display device having a housing for fixing and supporting a member,
At least from two opposite side end portions of the lower substrate, fitting convex portions are integrally formed with the lower substrate toward the wall surface of the housing, and the wall surface of the housing is formed on the wall surface of the housing. The fitting concave portion is provided at a position facing the fitting convex portion,
Outside the operation area of the upper sheet, a slit is formed at a position along the fitting convex portion,
A display device, wherein a fitting convex portion in which the slit is formed is inserted into the fitting concave portion, and the input device and the housing are fitted in a concave-convex manner. 3. The display device according to claim 2, wherein a wall surface of the casing that is continuous with the fitting concave portion is formed by an inclined surface that is inclined toward a protruding direction of the fitting convex portion as the distance from the fitting concave portion is increased. . Looking at the slit from the upper sheet side, it said slit display device according to claim 2 or 3 wherein are formed along the direction of the wall surface of the housing. An electronic apparatus comprising the display device according to claim 1 .

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