JP4367514B2 - Input device, electro-optical device, electronic equipment - Google Patents

Description

The present invention relates to an input device, a manufacturing method thereof, an electro-optical device, and an electronic apparatus.

In recent years, with the spread of small information electronic devices such as personal digital assistants (PDAs) and palmtop computers, liquid crystal devices having a touch panel as an input device on a liquid crystal panel have been widely used ( For example, see Patent Document 1).
JP 2003-43450 A

By the way, when a liquid crystal device provided with a touch panel is used as a display unit of an electronic device, it is necessary to expose the touch panel to the surface of the casing. In such a structure, a step is formed between the housing and the operation surface of the touch panel (see FIG. 11), and an integrated design with the housing cannot be adopted, so that the degree of design freedom is increased. It will be lower.

The present invention has been made in view of the above-described problems of the prior art, and can improve the designability of an electronic device equipped with an input means, and preferably can improve reliability. An object is to provide an electro-optical device.

In order to solve the above-described problems, the present invention provides an input panel, a storage member provided with a storage portion including an opening for storing the input panel, and one of the input panels provided in the storage portion . surface and one of the glued film member over the surface of the receiving member, and the other surface of the disposed housing portion the input panel, the back side bonded over the other surface of the housing member possess a film member, wherein the input panel is housed in the housing portion, wherein the input panel and the housing member that houses the input panel, it is held between said back side film member and the film member It is characterized by.
According to this configuration, since the film member is deformed and adhered so as to follow the step formed on the boundary between the main surface of the input panel and the main surface of the housing member, the surface of the film member is The steps are alleviated and the shape is smoothly continuous, and it is possible to prevent the deterioration of the design property due to the steps. Thereby, the input device excellent in design property is realizable.
In addition, since the film member is disposed on the main surface side of the input panel, when the input panel has a glass substrate, it is possible to prevent fragments from being scattered even if the glass is broken.
In addition, since the film member is bonded to cover the step of the boundary portion, it is possible to prevent dust from accumulating in the step portion or water drops from entering the boundary between the input panel and the storage member, An input device with excellent reliability can be realized.

With such a configuration, since the movement of the input panel in the panel thickness direction is restricted by the back side film member, the input panel is pushed into the back side by the pressing force of the input device or fingers during input operation on the input panel. Can be prevented.
The light-shielding film is further disposed between the housing member and the film member, and the light-shielding film has an opening corresponding to the input portion of the input panel.

The film member may have an opening in a plane region of the main surface of the input panel.
Thus, by providing an opening part in a film member, the operation surface of an input panel can be exposed, operation pressure can be reduced and comfortable input operation can be performed now. In the present invention, since the film member is bonded to the input panel and the housing member, a large step is not formed in the opening of the film member, and the operability can be improved without substantially impairing the design. .

The film member may have a structure in which a first resin layer and a second resin layer made of a resin material having a hardness lower than that of the first resin layer are stacked. With such a structure, that it comprises a second resin layer having a high flexibility, flexibly deform the film member in the boundary portion between the input panel and the housing member, with respect to the input panel and the accommodation member A film member can be adhered closely.

It is preferable that the second resin layer has an opening in a planar area of the input panel. With such a configuration, since the harder first resin layer is disposed on the input panel, it is possible to satisfactorily prevent wear and damage due to the input operation.

It is preferable that a panel support portion that contacts the input panel and supports a peripheral portion of the one surface of the input panel is formed in the storage portion of the storage member. With such a configuration, the panel support portion can restrict the movement of the input panel in the panel thickness direction, so that the input panel can be easily aligned with the cover member, and the film member can be easily adhered. Become.

It is preferable that the panel support portion is formed in a frame shape that protrudes from the inner wall on one surface side of the housing portion into the housing portion. That is, it is preferable that the panel support portion is configured to hold the peripheral edge portion of the input panel. With such a configuration, it is possible to configure the periphery of the input panel by the panel support portion. Moreover, the height of the level | step difference in the boundary part of a cover member and an input panel can be made low by providing a panel support part separately from an accommodating part.

An adhesive may be disposed between the input panel and the cover member. With such a configuration, the input panel can be more stably supported by the cover member, and the ease of handling in the manufacturing process, the reliability during the input operation, and the like can be improved.

Next, the manufacturing method of the input device of the present invention is a manufacturing method of an input device including an input panel and a cover member that supports the input panel, and includes a recess or an opening formed in the cover member. A panel disposing step of disposing the input panel in the housing portion; a film disposing step of disposing a film member over an input operation surface of the input panel; and a main surface of the cover member on the input operation surface side; and the film member And a softening step to bond the input panel and the cover member to each other.
According to such a manufacturing method, the film member can be bonded to the input panel and the cover member very easily, and the film member can be easily deformed to follow the boundary portion. .

In the bonding step, the film member is preferably bonded by a vacuum heat welding method. According to this manufacturing method, adhesion and adhesion of the film member can be performed very easily and efficiently.

You may have the process of adhere | attaching the back side film member which supports the said input panel from the said back side to the back surface of the said cover member on the opposite side to the said main surface. With such a manufacturing method, since the input panel can be fixed to the cover member before the film member is bonded, the film member can be bonded accurately, and the manufacturing method contributes to improvement in yield. It becomes.

The film member has a structure in which a first resin layer and a second resin layer made of a resin material having a hardness lower than that of the first resin layer are laminated, and in the film arranging step, the input panel and the The second resin layer may be disposed at the boundary with the cover member. According to this manufacturing method, it is easy to deform the film member so as to follow the shape of the boundary portion by arranging the more flexible second resin layer.

Next, an electro-optical device according to the present invention includes an input panel, a storage member provided with a storage portion including an opening for storing the input panel, and one surface of the input panel provided in the storage portion. When a film member that is bonded over the one surface of the housing member, the rear side film adhered to the other surface of the input panel disposed in the housing portion, over the other surface of the housing member an input device having a member, and an electro-optical panel is disposed on the rear side film member side of the input device, the input panel is housed in the housing portion, the input panel and the input the said receiving member panel containing the said film member and is held between said back side film member, said electro-optical panel, characterized in that in the translucent adhesive secured to said input device To.
According to this configuration, it is possible to provide an electro-optical device that can achieve excellent design with the input device according to the present invention and can perform an input operation and image display via the input panel.
As the electro-optical panel, various display devices such as a liquid crystal panel, an organic EL panel, and an electrophoretic display panel can be used. Alternatively, a plasma display device or a field emission display device (Field Emission Display: FED) can be used.

An electronic apparatus according to an aspect of the invention includes the input device or the electro-optical device described above. According to this configuration, it is possible to provide an electronic device that is excellent in design.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, in each drawing referred to below, the film thickness, the ratio of dimensions, and the like of each component are appropriately changed for easy viewing.

(First embodiment)
FIG. 1A is a schematic cross-sectional view of an input device 40A according to a first configuration example of the first embodiment of the present invention. FIG. 1B is a schematic cross-sectional view of the input device 40B according to the second configuration example. FIG. 2 is a schematic plan view of the input device 40A shown in FIG. FIG. 3 is an exploded perspective view showing the structure of the touch panel 4.

[First configuration example]
As shown in FIGS. 1 and 2, the input device 40 </ b> A according to the present embodiment is disposed in a housing portion 45 a that includes a substantially plate-like cover member 45 in a plan view and a rectangular opening formed in the cover member 45. Analog resistive film type touch panel (input panel) 4 and main surface 4 of cover member 45
5s (front side in FIG. 2) and the film member 30 bonded to the main surface 4s of the touch panel 4 are provided.

At the end on the main surface 45s side of the housing part 45a of the cover member 45, a panel support part 45A (shown with a hatched pattern in FIG. 2) having a frame shape in plan view is an inner wall of the housing part 45a. It is formed to extend from. The panel support portion 45A supports the touch panel 4 so as to press the peripheral edge of the touch panel 4 from the film member 30 side. The panel support portion 45 </ b> A has a rectangular opening 45 b on the touch panel 4.

A light shielding film 46 formed by, for example, printing is formed on the cover member 45 side of the film member 30, and the light shielding film 46 has a rectangular opening 46 a in a plane area corresponding to the input portion 40 a of the touch panel 4. Have. The light shielding film 46 is formed so as to cover the cover member 45 in plan view, and the opening 46a of the light shielding film 46 is located on the inner side of the opening 45b along the inner periphery of the opening 45b of the panel support 45A. Has been placed.

The thickness of the touch panel 4 and the depth of the accommodating portion 45a of the cover member 45 are substantially the same. The touch panel 4 is accommodated in the accommodating portion 45a of the cover member 45, and the main surface 4s of the touch panel 4 and the panel support portion 45A. Is in contact with the inner surface (the surface on the touch panel 4 side). And on the back side of the touch panel 4 (the side opposite to the film member 30), the back side of the touch panel 4 (
A back-side film member 31 bonded to the surface of the cover member 45 (the surface opposite to the film member 30) and the back surface (the surface opposite to the film member 30) is disposed. That is, in the input device 40A, the touch panel 4 is supported by the cover member 45 in a state in which movement in the panel thickness direction is restricted by being sandwiched between the frame-shaped panel support portion 45A and the back film member 31.

Note that the flexible printed circuit board 16 a that pulls out the terminals from the touch panel 4 is pulled out to the outside through a slit-shaped opening (not shown) provided in the back film member 31. Moreover, as the film member 30, the back side film member 31 is PE.
A film material made of a transparent resin material such as polyethylene such as T (polyethylene terephthalate), polyester, or polypropylene can be used.

And the film member 30 arrange | positioned so that the cover member 45 and the touch panel 4 may be covered by planar view is the main surface of the touch panel 4 exposed in 45 s of main surfaces of the cover member 45, and the opening part 45b of 45 A of panel support parts. Cover member 4 in a shape that follows the step formed at the boundary with 4s
5 and the touch panel 4.
That is, the surface of the film member 30 is a flat surface on the cover member 45 and the panel support portion 45 </ b> A, which are flat surfaces, and on the touch panel 4. Meanwhile, the panel support 45
The main surface 4s of the touch panel 4 and the main surface 4 of the cover member 45 formed by the opening 45b of A.
In the step portion between 5s, the film member 30 is deformed and is in close contact with the surface of the member constituting the step, and as a result, the step portion 43 is also formed on the surface of the film member 30.
In addition, although mentioned later for details, in order to adhere the film member 30 to the touch panel 4 and the cover member 45 in this way, the film member 30 is temporarily softened using a heat welding method or a vacuum heat welding method. It can be done very easily.

The touch panel 4 has a front-side substrate (first substrate) 8a and a back-side substrate (second substrate) 8b that are opposed to each other with a predetermined gap, and are annularly formed around the peripheral portions of the two substrates 8a and 8b. The sealing material 9 provided is bonded and integrated.
As shown in FIG. 3, the front substrate 8 a of the touch panel 4 is a substrate body 11 that is a transparent base material.
A planar electrode (high resistance film; first electrode) 12a made of a transparent conductive material is formed on the inner surface (surface on the back side substrate side) of a, and the planar electrode 12a is illustrated. In this configuration, a pair of low-resistance films 13 are formed at both ends in the Y direction (two opposite ends of the rectangular planar electrode 12a). The low resistance film 13 formed on the front side substrate 8a is connected to the back side substrate 8b via the conductive material 17.
The auxiliary electrode 18 formed thereon is conductively connected, and the terminal portion 1 is further connected via the auxiliary electrode 18.
6 is drawn. The low resistance films 13 and 14 and the auxiliary electrode 18 constitute a wiring part of the touch panel 4 and are formed along the peripheral edge of the substrate 8a or the substrate 8b.

On the other hand, the back-side substrate 8b of the touch panel 4 has a flat planar electrode (high resistance film; made of a transparent conductive material) on the inner surface (surface on the front-side substrate side) of the substrate body 11b that is a transparent base material. Second
Electrode 12b, and both ends of the planar electrode 12b in the X direction (rectangular planar electrode 1).
In this configuration, a pair of low resistance films 14 are formed on the two opposite side edges 2b. Back side substrate 8
A terminal portion 16 connected to the wiring drawn from the low resistance film 13 and the low resistance film 14 is formed at the side edge of b.
As shown in FIG. 1, a flexible printed circuit board 16a is provided on the terminal portion 16 with an ACP (Anis
The terminal portion 16 and an external control circuit are electrically connected by being bonded via an anisotropic conductive paste (ACF) or an anisotropic conductive film (ACF).
In the present embodiment, a planar area corresponding to the area where the planar electrode 12a is formed on the outer side surface of the front substrate 8a is input by instructing the position on the touch panel directly with the coordinate input surface (input instrument 3 or a finger). Operation surface for operation).

A hard glass substrate is used for the substrate bodies 11a and 11b constituting the front side substrate 8a and the back side substrate 8b. By using the front substrate 8a as a glass substrate, the problem of deterioration of the substrate and electrodes as in the case where a plastic substrate is used as the front substrate does not occur.
On the other hand, since a hard glass substrate is less flexible than a plastic film substrate,
If the load at the time of input is small, there is a problem that input cannot be performed sufficiently. Therefore, in this embodiment, the problem of operability is solved by reducing the thickness of the glass substrate to about 0.1 mm to 0.2 mm. On the other hand, as the substrate body 11b constituting the back substrate 8b, a substrate having the same thickness as that of a liquid crystal panel or the like is used. For example, in this example, the thickness of the back side substrate 8b of the touch panel 4 is about 0.5 mm.

The planar electrodes 12a and 12b are made of a transparent conductive film such as ITO (indium tin oxide),
It has a substantially uniform sheet resistance throughout the entire surface. On the other hand, the low resistance films 13, 14, the auxiliary electrode 18, and the terminal portion 16 include a highly conductive metal thin film, for example, Au, Ag, Cu, Al, Cr, or any one or more of these metals. It is made of an alloy.

In this embodiment, since glass substrates are used as the substrate bodies of the front substrate 8a and the back substrate 8b, unlike a conventional touch panel using a plastic film substrate, a high-temperature heat treatment or a strongly acidic etching solution is used. Etching treatment is possible. For this reason, in this embodiment, these conductive films (planar electrodes 12a, 12b, auxiliary electrode 18, terminal portion 16 and the like) for detecting coordinate information are all subjected to a vacuum process such as sputtering or vapor deposition. And further thinning the low resistance films 13 and 14 and the auxiliary electrode 18 by etching,
A narrow frame wiring portion is formed. For example, when APC (AgPdCu alloy, specific resistance is about 4 × 10 ⁻⁶ Ωcm) is used for the wiring part, a silver paste is conventionally used with a thickness of 20 μm and a line width of 1 mm.
In APC, the routing wiring made in (1) can be made with a thickness of 0.2 μm and a line width of 0.1 mm. The specific resistance (Ωcm) of copper, aluminum, and chromium is 6 × 10 ⁻⁶ , respectively.
6 × 10 ⁻⁶ and 5 × 10 ⁻⁵ , the line width can be reduced by 1 to 2 digits compared to the conventional case even if these metals are used.

A buffer member 15 made of a resin material or the like is arranged on the planar electrode 12b of the back substrate 8b. The buffer member 15 is made of an elastic material such as silicone or urethane (for example, the elastic modulus is 1
× 10 ⁴ N / m ² to 1 × 10 ⁸ N / m ² ) is preferably used, and can be formed on the planar electrode 12b by using a photolithography method or a printing method. This buffer structure also functions as a spacer for controlling the gap between the substrates 8a and 8b.

As the film member 30 adhered on the touch panel 4, a film material made of a transparent resin material such as polyethylene such as PET (polyethylene terephthalate), polyester, or polypropylene can be used. In the input device 40A, the input device 3 and fingers are slid on the surface of the film member 30 during the coordinate input operation on the touch panel 4, and display means such as a liquid crystal panel is provided on the back side of the touch panel 4 (on the opposite side to the film member 30). Is also used as a display device. Therefore, the film member 30 is preferably a PET film that can satisfactorily prevent abrasion due to operation and scratches on the surfaces of the cover member 45 and the touch panel 4 and obtain good transmittance.

The light shielding film 46 formed on the side surface of the cover member 45 of the film member 30 is a colored film formed by applying a black material or a white material by printing, for example. In the case of the present embodiment, it functions as a blindfold of the area where the sealing material 9 of the touch panel 4 is formed and the part where the terminal portion 16 is formed, and liquid crystal is provided on the back side of the touch panel 4 (the side opposite to the film member 30). When a display means such as a panel is provided, it also functions as a peripheral part for display. The light-shielding film 46 can be of any color as long as it has a light-shielding property, and a pattern may be provided on the film member 30 side.

The film member 30 can be designed not only with the light shielding film 46 but also with any color and pattern. Although such a design can be formed on any surface of the film member 30, it is preferably formed on the cover member 45 side from the viewpoint of protecting the printed matter.

The cover member 45 is composed of a plastic plate or a metal plate, and can be used without any problem as long as it is a base material having a predetermined strength. The cover member 45 can be used not only as a support for the touch panel 4 but also as a member constituting an operation panel of an electronic device, for example. In this case, the cover member 45 can be used as an operation unit with a built-in touch panel. When the input device 40A is used as an operation unit of an electronic device, the cover member 45 may be provided with an operation button or a through hole for a switch, and such processing can be easily performed by die cutting or cutting out. Can do. Furthermore, since the film member 30 can be printed, character information such as explanations of buttons and switches can be printed.

In the input device 40A of the present embodiment having the above-described configuration, the touch panel 4 is disposed in the housing portion 45a formed in the cover member 45, and the film member extends over the main surface 4s of the touch panel 4 and the main surface 45s of the cover member 45. 30 is adhered, and the film member 30 is closely attached to follow the step shape between the main surface 4s of the touch panel 4 and the main surface 45s of the cover member 45. As a result, the cover member (or casing) and the touch panel of different materials are conventionally arranged with clear boundaries and steps, whereas the surface of the film member 30 is smooth in this embodiment. It becomes a continuous step shape. Therefore, it is an input device that can obtain a surface that is more aesthetically pleasing than conventional ones, that can improve the degree of freedom of design, and that has excellent design.

In addition, when there is a step between the touch panel and the housing as in the past, there is a problem that dust accumulates in the step, or water droplets can easily enter the housing from the gap of the step portion when water drops adhere to it. However, in this embodiment, the entire surface including the cover member 45 is the film member 30.
Therefore, dust does not accumulate and spoil the appearance, or water droplets can enter and cause failure, thus providing an input device with excellent reliability.

In the present embodiment, in order to further improve the adhesion of the film member 30 to the step between the main surface 45s of the cover member 45 and the main surface 4s of the touch panel 4, the opening of the panel support 45A that constitutes the above step. It is preferable that the portion 45b has a wide-mouthed shape toward the film member 30, that is, a shape in which the side end surface forms a slope shape (tapered shape) in a sectional view.

Further, since the film member 30 is in close contact with the front side substrate 8a of the touch panel 4 made of a thin glass substrate having a thickness of about 0.1 to 0.2 mm, the front side substrate 8a is cracked by dropping or collision of foreign matter. Even in the case of stagnation, it is possible to prevent glass fragments from being scattered by the film member 30 and to realize an input device with excellent safety. In particular, in this embodiment, since the film member 30 is bonded so as to cover one surface including the touch panel 4 and the cover member 45, the film member 30 is extremely difficult to peel off, and also in this respect, it is excellent in safety. ing.

Furthermore, in the input device 40A of the present embodiment, the touch panel 4 is in a state in which the movement of the cover member 45 toward the film member 30 is restricted by the panel support portion 45A. Therefore, even if manufacturing variation occurs in the thickness of the touch panel 4, the main surface 45 s of the cover member 45.
The height of the step between the main surface 4s of the touch panel 4 does not vary, and the film member 3
0 can be stably brought into close contact with the step and can be manufactured with high yield.

Further, in the present embodiment, the touch panel 4 is brought into contact with the panel support portion 45A so as to accommodate the housing portion 45a.
The touch panel 4 is fixed by a back-side film member 31 that is accommodated in and attached to the back side of the cover member 45. By adopting such a fixing method, the touch panel 4 can be mounted by a simple process.

Note that an adhesive may be provided between the main surface 45s of the cover member 45 and the film member 30 (the light shielding film 46) to bond them together. Further, an adhesive is provided between the main surface 4s of the touch panel 4 and the surface of the film member 30 on the side of the touch panel 4 so as to optically bond both of the film member 3 and the film member 3.
0 and the touch panel 4 may be optically bonded.
As the adhesive (adhesive) provided between the film member 30 and the cover member 45 (and the touch panel 4), various adhesives such as acrylic, rubber, and silicone can be used. When the film member 30 and the touch panel 4 are optically bonded, it is preferable to use a silicone-based adhesive.

Here, the input operation of the touch panel 4 will be described.
In the touch panel 4, an input control circuit (not shown) is connected to the terminal portion 16, and the input control circuit allows the low resistance films 14 and 14 located at both ends in the X direction of the back side substrate 8 b at a certain point in time. A predetermined voltage is applied between the low resistance films 13 and 13 located at both ends in the Y direction of the front substrate 8a, and voltage measuring means (voltage measuring circuit or voltage measuring element, (Not shown) are electrically connected. At this time, a uniform voltage drop in which the voltage changes linearly along the X direction is generated on the planar electrode 12b of the back substrate 8b, and the parts having the same position coordinate axis in the X direction have substantially the same potential. A voltage distribution such that At this time, when a portion having the coordinate input surface of the front substrate 8a is pressed by the tip of the input device 3, the planar electrode 12a of the front substrate 8a and the planar electrode 12b of the rear substrate 8b come into contact with each other. Through the planar electrode 12a of the side substrate 8a, the voltage of the planar electrode 12b at a position corresponding to the portion pressed by the input device 3 is measured by the input control circuit. Since the measured voltage value correlates with the position coordinate in the X direction of the pressed part, the input control circuit can detect the position in the X direction of the part pressed by the input device 3.

On the other hand, at some other time, a predetermined voltage is applied between the low resistance films 13 and 13 located at both ends in the Y direction of the front substrate 8a by the input control circuit, and both ends in the Y direction of the back substrate 8b. The voltage measuring means is connected between the low resistance films 14 and 14 located in the section. At this time, a uniform voltage drop occurs along the Y direction on the planar electrode 12a of the front substrate 8a, and a voltage distribution in which the voltage changes linearly is formed. The input control circuit detects the voltage of the planar electrode 12a of the front substrate 8a at the position corresponding to the portion pressed by the input instrument 3 through the planar electrode 12b of the rear substrate 8b, thereby detecting the above-mentioned X. As in the case of the position related to the direction, the position in the Y direction of the pressed part can be detected.
By repeating the switching of the two connection states with respect to the input control circuit within a short time, the input control circuit can detect the position coordinate value in the X direction of the part pressed by the input device 3 and the Y
The position coordinate axis of the direction can be detected.

In addition, since the touch panel 4 of the present embodiment has a structure in which two glass substrates are bonded and integrated with a sealing material, the touch panel 4 can be basically manufactured by the same method as that for manufacturing a liquid crystal panel. For this reason, if a substrate body used for manufacturing the touch panel 4 has a thickness substantially the same as that of the two substrates of the liquid crystal panel, the touch panel 4 manufacturing line can be shared with the liquid crystal panel manufacturing line. Become. However, since the front side substrate 8a needs to be thinned and provided with flexibility for coordinate input operation, after bonding two substrates having a thickness of about 0.5 mm, Etching is performed to 0.1mm to 0.2mm
What is necessary is just to make it thin. When a thin substrate is used from the beginning of the manufacturing process, it becomes difficult to handle the substrate, the substrate may be cracked during the manufacturing process, and the substrate is weak against mechanical shock. As described above, it is possible to effectively prevent such a problem in the manufacturing process by thinning only the substrate main body 11a on the front surface side after bonding through the sealant 9.

<Method for Manufacturing Input Device of First Configuration Example>
Next, a manufacturing method of the input device 40A according to the first configuration example will be described with reference to FIGS. 4 and 5 are schematic cross-sectional views showing the manufacturing process of the input device 40A. The cross-sectional configuration shown in FIGS. 4 and 5 corresponds to the cross-sectional configuration at a position along the line AA ′ shown in FIG.

First, as shown in FIG. 4 (a), a cover member 45 provided with an accommodating portion 45a and a panel support portion 45A is prepared. As long as the cover member 45 is made of a resin material, it is possible to easily manufacture the cover member 45 including the housing portion 45a and the panel support portion 45A by injection molding. Moreover, as long as it consists of a metal material, what was equipped with the accommodating part 45a and the panel support part 45A can be manufactured by a cutting and press work.

If the cover member 45 is prepared, the touch panel 4 manufactured separately is provided on the main surface 4s as an input operation surface from the opening end side of the housing portion 45a opposite to the panel support portion 45A. Fit into 45a.
Since the touch panel 4 having a conventionally known structure can be used, a known manufacturing method can be applied to the manufacturing method.

When the touch panel 4 is fitted into the housing portion 45a, the opening 45b of the panel support 45A is narrower than the main surface 4s of the touch panel 4 as shown in FIG. The touch panel 4 is accommodated in the housing portion 4 in a state where the back surface 45c of 45A is in contact.
5a. At this time, if an adhesive is provided between the back surface 45c of the panel support portion 45A and the main surface 4s of the touch panel 4, the touch panel 4 can be fixed with appropriate strength simply by fitting the touch panel 4 into the housing portion 45a. it can.

Thereafter, as shown in FIG. 4B, for example, a back film member 31 made of a PET film is bonded to the cover member 45 and the back substrate 8 b of the touch panel 4. For adhesion of the back film member 31, for example, a silicone-based adhesive can be used.
Thereby, the touch panel 4 accommodated in the accommodating part 45a is fixed to the cover member 45 by the back side film member 31 adhered to the back side (the side opposite to the panel support part 45A).

Next, as shown in FIG.4 (c), the film member 30 which consists of PET films, for example is prepared. A light shielding film 46 is printed on the surface of the film member 30 on the cover member 45 side. And as shown in FIG.4 (d), the film member 30 is arrange | positioned so that the cover member 45 and the touch panel 4 may be covered in the state which orient | assigned the printing surface to the cover member 45 side. At this time,
The opening 46a of the light shielding film 46 on the surface of the film member 30 is the opening 45 of the panel support 45A.
Positioning is performed so that the opening 46a of the light shielding film 46 is disposed in b.

Next, as shown in FIG. 5A, the film member 30 is heated by using a heating device 350 to soften the film member 30, and the film member 30 is thermally welded to the touch panel 4 and the cover member 45. As such a welding method, a welding method such as hot plate welding, vacuum heat welding, vibration welding, ultrasonic welding, laser welding, impulse welding, high frequency induction heating welding, electromagnetic induction ripening welding, hot press welding, or the like is used. Can do.

Then, as shown in FIG. 5B, the softened film member 30 enters the opening 45 b of the panel support portion 45 </ b> A so as to follow the main surface 4 s of the touch panel 4 and the step between the touch panel 4 and the cover member 45. In close contact with the touch panel 4 and the cover member 45. Further, by this step, a stepped portion 43 having a shape following the step between the touch panel 4 and the cover member 45 is formed on the surface of the film member 30.

As described above, according to the manufacturing method of the present embodiment, the film member 30 is heat-welded so as to be in close contact with the step between the touch panel 4 and the touch panel 4 and the cover member 45. The level difference between the touch panel 4 and the cover member 45 is the film member 30.
It is possible to manufacture the input device 40A with improved design freedom by a simple process.

Further, since the touch panel 4 is fitted into the housing portion 45a provided in the cover member 45, and the back film member 31 is adhered and fixed from the back side of the touch panel 4, the touch panel 4 is covered by a very simple process. 45 can be fixed.

In addition, when the light shielding film 46 is printed on the surface of the film member 30 and the adhesive force of the film member 30 when the film member 30 is thermally welded cannot be secured, the light shielding film 46 is formed. The surface of the film member 30 corresponding to the region or the cover member 4
An adhesive may be disposed on the surface of 5.

[Second configuration example]
In the input device 40 </ b> B according to the second configuration example illustrated in FIG. 1B, the adhesive 4 is formed in a planar frame shape surrounding the touch panel 4 between the touch panel 4 and the inner wall portion of the housing portion 45 a of the cover member 45.
2 is filled. Accordingly, the touch panel 4 includes the film member 30 and the cover member 45.
It is fixed to both sides.

An input device 40 in which an adhesive 42 is disposed between the touch panel 4 and the cover member 45.
According to B, in addition to the same operational effects as the input device 40A described above, the following operational effects are obtained.

First, by fixing the touch panel 4 to the cover member 45 with the adhesive 42, the back side film member 31 which concerns on a 1st structural example becomes unnecessary. Therefore, for example, the touch panel 4
When a display means such as a liquid crystal panel is provided on the back side of the LCD and display is performed through the touch panel 4, no light loss or reflection on the surface of the back side film member 31 occurs when the back side film member 31 is transmitted. It will be possible to obtain a bright display by the amount.

In addition, since the touch panel 4 is restricted from moving in either the substrate surface direction or the substrate thickness direction, the touch panel 4 is pushed into the back side by an input operation of the touch panel 4,
The touch panel 4 does not move in the accommodating portion 45a due to an impact such as dropping, and the input device can be excellent in operability and durability.

The input device 40B according to the second configuration example can be manufactured in the same manner as the input device 40A according to the first configuration example described with reference to FIGS. 4 and 5. However, since the back side film member 31 is not necessary in the input device 40B, the touch panel 4 and the storage unit disposed in the storage unit 45a are used instead of the step of bonding the back side film member 31 illustrated in FIG. What is necessary is just to provide the process of arrange | positioning the adhesive agent 42 between the inner walls of 45a. In this case, the adhesive 42 can be applied to a predetermined position by a dispenser or the like after the touch panel 4 is accommodated in the accommodating portion 45a, but the adhesive 42 is previously applied to the side surface portion of the touch panel 4 accommodated in the accommodating portion 45a. May be applied. Or you may apply | coat the adhesive agent 42 previously to the inner wall face of the accommodating part 45a.

[Third configuration example]
Next, FIG. 6 is a schematic cross-sectional view of an input device 40C which is a third configuration example of the input device according to the first embodiment. FIG. 6 is a diagram corresponding to FIG. 1A in the first configuration example.

The difference between the input device 40C of this example and the input device 40B of the second configuration example is that the film member 130 formed over the cover member 45 and the touch panel 4 has the first resin layer 131 and the second resin layer 132. It is the point provided with the laminated structure. Therefore, in FIG.
The same components are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 6, the film member 130 includes a planar first resin layer 131 that covers the main surface 45 s of the cover member 45 and the main surface 4 s of the touch panel 4 exposed from the opening 45 b of the panel support portion 45 </ b> A. The second resin layer 132 formed on the surface of the first resin layer 131 opposite to the cover member 45 is provided.

The first resin layer 131 is made of a film material made of a transparent resin material such as polyethylene (polyethylene terephthalate) such as PET (polyethylene terephthalate), polyester, or polypropylene, as in the case of the film member 30 having a single layer structure in the first configuration example and the second configuration example. Can be used.

As shown in FIG. 6, the second resin layer 132 is partially formed on the first resin layer 131. The second resin layer 132 has a substantially rectangular frame shape in plan view similar to the light shielding film 46 and is flat with the light shielding film 46. Are arranged in an overlapping manner. The second resin layer 132 has an opening 132 a having a rectangular shape in plan view corresponding to the opening 46 a of the light shielding film 46, and the opening 132 a is formed inside the opening 46 a of the light shielding film 46. . In the opening 132a of the second resin layer 132, the first resin layer 131 on the lower layer side is provided.
Is exposed.

The second resin layer 132 is formed using a resin material having a lower hardness (higher flexibility) than the resin material constituting the first resin layer 131. For example, if the first resin layer 131 is made of a PET film, the second resin layer 132 is formed using polyethylene, urethane, acrylic, or the like.

In the input device 40C of the present example having the above-described configuration, the film member 130 is the first resin layer 131.
And a second resin layer 132. When the film member 30 having such a configuration is thermally welded to the touch panel 4 and the cover member 45, the second resin layer 132 formed using a resin material having a lower hardness than the first resin layer 131 is softened. Touch panel 4 to spread
The contact of the film member 130 with respect to the step at the boundary between the cover member 45 and the cover member 45 can be improved, and the adhesion between the film member 130 and the touch panel 4 and the cover member 45 can be improved. Thereby, an input device excellent in both reliability and designability can be realized.

In the input device 40C, the first resin layer 1 having a relatively high hardness is provided on the touch panel 4.
Since 31 is exposed, it is possible to satisfactorily prevent wear due to operation and damage to the surface of the cover member 45 and the touch panel 4 on the surface on which the input device 3 and fingers are slid in the coordinate input operation on the touch panel 4. It has become. As the first resin layer 131, it is preferable to use a PET film that can satisfactorily prevent the wear and scratches and obtain a good transmittance.

In this example, the case where the second resin layer 132 is formed in a substantially rectangular frame shape that substantially overlaps the light shielding film 46 in plan view has been described. However, the second resin layer 132 is a boundary portion between the touch panel 4 and the cover member 45. The film member 130 is provided for the purpose of bringing the film member 130 into close contact with each other along the step formed in the case. Therefore, in the case of this example, if it is provided at least at the boundary portion between the touch panel 4 and the cover member 45, it is expected. Can achieve the purpose.

Further, the second resin layer 132 is not limited to the boundary portion between the touch panel 4 and the cover member 45 but can be disposed in a region where other steps are formed. For example, the main surface 4 of the cover member 45
When protrusions and recesses are formed in 5s, if the second resin layer 132 is selectively formed at a position overlapping these protrusions and recesses in a plan view, the portions where the protrusions and recesses are formed are excellent. The film member 130 can be adhered.

Moreover, although the structure which bonded the film member 130 of 2 layer structure was demonstrated in this example, it may replace with the film member 130 and you may provide the film member which laminated | stacked the resin layer of 3 layers or more.
By using a film member that is formed by selectively arranging multiple resin layers with different hardness, the adhesion (following ability to unevenness) at the time of welding can be highly controlled, and the reliability and design of the input device are improved. Can be achieved.

Furthermore, instead of the film member 130, a film member having a configuration in which resin films having different hardnesses are formed in a plane region may be used. For example, a film member obtained by integrating a PET film having a rectangular shape in plan view corresponding to the main surface 4s of the touch panel 4 and a polyethylene film disposed so as to surround the PET film in plan view at a portion where both come into contact with each other is used. You can also

<Method for Manufacturing Input Device of Third Configuration Example>
Next, a method for manufacturing the input device 40C according to the third configuration example will be described with reference to FIG.
FIG. 7 is a schematic cross-sectional view showing the manufacturing process of the input device 40C. The cross-sectional configuration shown in FIG.
It corresponds to a cross-sectional configuration at a position along the line AA ′ shown in FIG.

First, as shown in FIG. 7 (a), a cover member 45 provided with a housing portion 45a and a panel support portion 45A is prepared, and a separately manufactured touch panel 4 is provided on a main surface 4s that is an input operation surface. It fits in the accommodating part 45a from the opening end side of the accommodating part 45a opposite to the part 45A formed. Thereafter, a back film member 31 made of, for example, a PET film is bonded over the cover member 45 and the back substrate 8b of the touch panel 4.

Further, as shown in FIG. 7A, for example, a first resin layer 131 made of a PET film,
For example, a film member 1 formed by laminating a second resin layer 132 made of a polyethylene film.
30 is prepared. A light shielding film 46 is printed on the surface of the film member 30 on the cover member 45 side.

Then, as shown in FIG. 7B, the film member 130 is disposed so as to cover the cover member 45 and the touch panel 4 with the printing surface facing the cover member 45 side. At this time,
The opening 46a of the light shielding film 46 on the surface of the film member 130 is the opening 4 of the panel support 45A.
5b is aligned so that the opening 46a of the light shielding film 46 is disposed.

Next, as illustrated in FIG. 7C, the film member 130 is heated by using a heating device 350 to soften the film member 130, and the film member 130 is thermally welded to the touch panel 4 and the cover member 45. As such a welding method, a welding method such as hot plate welding, vacuum heat welding, vibration welding, ultrasonic welding, laser welding, impulse welding, high frequency induction heating welding, electromagnetic induction ripening welding, hot press welding, or the like is used. Can do.

Then, as shown in FIG. 7 (d), the softened film member 130 becomes the panel support portion 45A.
And touches the touch panel 4 and the cover member 45 along the main surface 4s of the touch panel 4 and the step between the touch panel 4 and the cover member 45. Further, by this step, a stepped portion 43 having a shape following the step between the touch panel 4 and the cover member 45 is formed on the surface of the film member 130.

In the present embodiment, since the second resin layer 132 made of a resin material having low hardness is formed on the first resin layer 131 of the film member 130, the second resin having higher flexibility by heating with the heating device 350. The layer 132 spreads on the first resin layer 131. As a result, the film member 130 smoothly comes into close contact with the step between the touch panel 4 and the cover member 45.

As described above, according to the manufacturing method of the present embodiment, the film member 130 having a two-layer structure.
The film member 130 is smoothly adhered to the touch panel 4 and the step between the touch panel 4 and the cover member 45. Can be made. Therefore, the input device 40C in which the step is effectively relaxed and the degree of freedom of design is improved can be manufactured by a simple process.

Further, since the touch panel 4 is fitted into the housing portion 45a provided in the cover member 45, and the back film member 31 is adhered and fixed from the back side of the touch panel 4, the touch panel 4 is covered by a very simple process. 45 can be fixed.

[Fourth and fifth configuration examples]
Next, FIG. 8A is a schematic cross-sectional view of an input device 40D that is a fourth configuration example of the input device according to the first embodiment. FIG. 8B is a schematic cross-sectional view of the input device 40E which is the fifth configuration example. FIG. 8A and FIG. 8B are diagrams corresponding to FIG. 1A in the first configuration example.

The input device 40D of the fourth configuration example is based on the input device 40A of the first configuration example, and an opening 30a is formed in the film member 30 formed across the cover member 45 and the touch panel 4.
Is different in that it is formed.
Further, the input device 40E of the fifth configuration example is based on the input device 40C of the third configuration example, and an opening 130a is formed in the film member 130 formed across the cover member 45 and the touch panel 4. Is different.
Therefore, in FIG. 8, the same components as those in FIGS. 1 and 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

As shown in FIG. 8A, the film member 30 in the input device 40D according to the fourth configuration example.
The opening 30 a is formed in a rectangular shape along the edge of the opening 46 a of the light shielding film 46 that is formed so as to overlap the peripheral edge of the touch panel 4, and corresponds to a planar region that serves as an input operation unit of the touch panel 4. And open.
Further, as shown in FIG. 8B, the opening portion 130 a of the film member 130 in the input device 40 </ b> E according to the fifth configuration example also has an opening portion 46 a of the light shielding film 46 formed so as to overlap the peripheral edge portion of the touch panel 4. Is formed in a rectangular shape along the edge of the touch panel 4, and has an opening corresponding to a planar area serving as an input operation unit of the touch panel 4.
Therefore, in the input devices 40D and 40E, an input operation on the touch panel 4 is performed by sliding the input device 3 and fingers directly on the front substrate 8a.

In the input devices 40D and 40E of the fourth and fifth configuration examples having the above configuration, the touch panel 4
Since the input operation is performed by directly pressing the front substrate 8a, the input device 40A of the first configuration example for performing the input operation through the film member 30 and the film member 13 are used.
Compared to the input device 40C of the third configuration example in which the input operation is performed via 0, the operation pressure is reduced, and the input operation can be performed comfortably.

In the fourth and fifth configuration examples, since the film member 30 and the film member 130 are partially removed to form the openings 30a and 130a, the film member 30 or the film member 130 and the touch panel 4 are bonded. The area to be touched is the touch panel 4 (front substrate 8a).
Only the peripheral region. Although the width of the peripheral region is usually at least several millimeters although it depends on the size of the touch panel 4, the film member 30 or the film member 130,
The adhesive strength with the touch panel 4 can be ensured.
However, since the bonding area is smaller and the bonding strength is lower than the input devices 40A and 40C of the previous configuration example, the input devices 40D and 40E of the fourth and fifth configuration examples have the second configuration.
Similarly to the input device 40 </ b> B according to the configuration example, it is preferable that the cover member 45 and the touch panel 4 are bonded to each other by disposing the adhesive 42 in the gap between the touch panel 4 and the cover member 45.

Further, in the case of the fourth and fifth configuration examples, as shown in FIG. 8, the light shielding film 46 formed on the film member 30 or the film member 130 on the cover member 45 side is outside the opening 30 a of the film member 30. It is preferable to form the outer periphery of the opening 130a of the film member 130 so that the edge of the light shielding film 46 is not exposed in the openings 30a and 130a. By adopting such a configuration, it is possible to prevent the peeling from the interface between the light shielding film 46 and the film members 30 and 130, and to effectively protect the light shielding film 46.

Further, in the fourth and fifth configuration examples, since the front side substrate 8a of the touch panel 4 is exposed, if the substrate body 11a of the front side substrate 8a is a glass substrate, the glass substrate is damaged by an impact such as dropping. Sometimes debris can scatter. Therefore, when adopting the configuration as in this example, it is preferable to use a high-strength glass substrate or plastic substrate as the substrate body 11a of the front substrate 8a. Alternatively, a protective layer may be formed by applying a transparent resin to the surface of the substrate body 11a.

(Second Embodiment)
Next, an electro-optical device according to a second embodiment of the present invention will be described with reference to FIG.
FIG. 9 is a schematic cross-sectional view showing a touch panel integrated liquid crystal device which is an example of the electro-optical device according to the second embodiment.

A liquid crystal device 100A shown in FIG. 9 includes a liquid crystal panel (electro-optical panel) 2 that is a display unit, and the input device 40A of the previous embodiment disposed on the front surface side (the upper side in the drawing; the observation side). It is configured.
As described above, the input device 40 </ b> A covers the analog resistive film type touch panel (input panel) 4, the cover member 45 including the housing portion 45 a for housing the touch panel 4, and the touch panel 4 and the cover member 45. Thus, the film member 30 bonded to the main surface 45s of the cover member 45 and the main surface 4s of the touch panel 4 and the back side film member 31 bonded to the back side of the touch panel 4 are provided.

The liquid crystal panel 2 includes an adhesive 50 including a light-transmitting elastic body (for example, a light-transmitting elastic body such as silicon gel, acrylic gel, urethane gel, and urethane rubber having a refractive index difference from glass smaller than that of air). Thus, the back side film member 31 bonded to the back side of the touch panel 4 is optically bonded. By configuring the adhesive 50 with an elastic body, the elastic body absorbs the pressing force when an input operation is performed on the touch panel 4, so that display unevenness due to distortion of the substrate of the liquid crystal panel 2 due to the input operation can be suppressed.

The liquid crystal panel 2 includes a front side substrate (third substrate) 22a and a back side substrate (fourth substrate) 22b that are opposed to each other with a liquid crystal (electro-optical material) 32 interposed therebetween at the peripheral edge of these two substrates. The sealing material 23 provided in an annular shape is bonded and integrated. Front side substrate 2 arranged on the observation side
2a has a configuration in which a liquid crystal control layer having a front electrode 26a made of a transparent conductive material, an alignment film (not shown), and the like is formed on the surface of the substrate body 24a, which is a transparent substrate, on the liquid crystal layer side. Back side substrate 22 arranged on the side opposite to the observation side (the side opposite to front side substrate 22a across liquid crystal layer 32)
b has a configuration in which a liquid crystal alignment control layer having a back-side electrode 26b made of a transparent conductive material, an alignment film (not shown), and the like is formed on the surface of the substrate body 24b, which is a transparent substrate, on the liquid crystal layer side.

Between the front substrate 22a and the back substrate 22b, granular spacers 29 for maintaining a constant distance (cell gap) between the substrates 22a and 22b are distributed. The liquid crystal panel 2 may be either a passive matrix type or an active matrix type, and the liquid crystal alignment form may be various known forms such as a TN type, a VAN type, an STN type, a ferroelectric type, and an antiferroelectric type. Can be adopted. It is also possible to display color by arranging color filters on any of the substrates. Further, a reflective liquid crystal display device may be configured by forming a reflective film on the back side substrate 22b, and a translucent reflective liquid crystal is formed by forming a transparent portion such as an opening or a slit in the reflective film. A display device can also be configured.

The front substrate 22a is provided with an overhanging portion 24c that protrudes to the outer peripheral side of the back substrate 22b. This overhanging portion 24c is used as a mounting terminal forming region. Overhang 24
An unillustrated wiring pattern is formed on c, and the front side electrode 26a of the front side substrate 22a,
The back side electrode 26b of the back side substrate 22b is electrically connected to the wiring pattern of the overhanging portion 24c via a wiring pattern (not shown) or a conductive material. Then, a liquid crystal driving IC (electronic component) 36 for electrically driving the liquid crystal panel 2 with respect to the wiring pattern of the overhanging portion 24c is COG.
Has been implemented. As a mounting form of the liquid crystal driving IC 36, in addition to COG mounting, FPC
Other forms such as mounting can be employed.

In the present embodiment, the overhanging portion 24c of the liquid crystal panel 2 is planarly overlapped with a region where the terminal portion 16 of the touch panel 4 is formed (a region where the back side substrate 8b projects beyond the front side substrate 8a). A touch panel 4 and a liquid crystal panel 2 are arranged. By arranging in this way, the frame area of the liquid crystal panel 2 is also hidden by the light shielding film 46. Moreover, since the area | region with which the back side board | substrate 8b of the touch panel 4 and the front side board | substrate 22a of the liquid crystal panel 2 overlap can be taken largest, the adhesive reliability of the touch panel 4 and the liquid crystal panel 2 can be improved. In addition, since the region where the connection terminal to the external circuit is formed is disposed close to the touch panel 4 and the liquid crystal panel 2, the connection to the external circuit can be easily performed.

Although omitted in the drawings, polarizing plates are provided on the outer surface side of the front substrate 22a and the outer surface side of the rear substrate 22b of the liquid crystal panel 2, respectively. These pair of polarizing plates are
Either one may be formed on the liquid crystal layer 32 side of the substrate body 24a or the substrate body 24b. In addition, an illumination device (backlight) is disposed outside the rear substrate 22b.

According to the liquid crystal device 100A of the present example having the above configuration, the input device 40A of the previous embodiment.
And the back side film member 31 of the input device 40A and the liquid crystal panel 2 bonded to each other provide a display that can be transmitted through the touch panel 4.
And in the liquid crystal device of this embodiment, the step between the touch panel 4 and the cover member 45 is smoothly continuous by the film member 30 adhered to the display surface side,
Moreover, since arbitrary printing can be performed on the film member 30, the liquid crystal device has a high degree of design freedom and an excellent design.

In the liquid crystal device of the present embodiment, since the film member 30 is disposed on the front side of the touch panel 4, the touch panel 4 using a glass substrate as the front side substrate 8a can be used safely. A touch panel using a glass substrate for both of the two substrate bodies 11a and 11b,
Since the substrate main body 11a is a plastic substrate and the substrate main bodies 11a and 11b are both plastic substrates, a higher transmittance can be obtained, so that a brighter and higher-quality display can be obtained than before. It becomes.

In addition, although this embodiment demonstrated the liquid crystal device of the structure which combined the liquid crystal panel 2 and 40 A of input devices, you may combine the liquid crystal panel 2 and either of the input devices 40B-40E. Further, in place of the liquid crystal panel 2, other display means such as an organic EL panel may be arranged.

(Electronics)
Next, an electronic apparatus according to the present invention will be described with reference to FIGS.
FIG. 10A shows a PDA (Personal Digital Assista) including the liquid crystal device of the previous embodiment.
nt: portable information terminal) 200 is a schematic perspective view. FIG. 10B is a perspective configuration diagram of the liquid crystal device provided in the PDA 200.

As illustrated in FIG. 10A, the PDA 200 includes a function key 202 that configures an operation unit and a touch panel integrated display 203 in a housing 201. The touch panel integrated display 203 includes the liquid crystal device according to the present invention.
As shown in (b), the cover member 45 processed into a predetermined shape so as to form the display unit and operation unit of the PDA 200, the touch panel 4 supported by the cover member 45, and the back side of the touch panel 4 are disposed. The liquid crystal panel 2 is provided. A film member (30) (not shown) is bonded to the surfaces of the touch panel 4 and the cover member 45 to protect the input operation surface of the touch panel 4 and the surface of the cover member 45.
The cover member 45 is provided with a plurality of through holes 45d, and the function keys 202 are inserted into the through holes 45d so as to be exposed to the outside of the housing. Also,
Near the through hole 45d, the back side of the film covering the cover member 45 (the cover member 45 side)
The identification information (characters and figures) printed on is arranged.

The PDA 200 of the present embodiment directly indicates the position on the touch panel 4 while looking at the identification information printed in the vicinity of the function key 202 and the screen display of the liquid crystal panel 2 arranged under the touch panel 4. It performs operations such as data entry.

Here, FIG. 11 shows a PDA having a conventional configuration shown for comparison. PDA 10 shown in FIG.
00 includes a housing 1001, function keys 1002, and a touch panel 1004 arranged in an opening of the housing 1001. A liquid crystal panel (not shown) is disposed under the touch panel 1004.
As shown in the figure, a frame unit 1 in which a touch panel 1004 is conventionally formed in a housing 1001.
Since the structure is supported by pressing at 003, a step portion 1003a is formed between the operation surface of the touch panel 1004 and the frame portion 1003. And this step part 1003a
For this reason, the operation surface of the touch panel 1004 and the surrounding frame portion 1003 are clearly partitioned, and the design of the housing 1001 is limited.

On the other hand, according to the PDA 200 of the present embodiment having the above-described configuration, the liquid crystal device of the present invention described above is provided as the input device and display device, and therefore, between the touch panel 4 and the surrounding cover member 45. The step is smoothly continuous by the film member,
A PDA with an excellent design can be realized. In addition, the design of the entire housing including the touch panel 4 is possible, and an electronic device with excellent design can be realized. In addition, a bright display is possible, the operability is excellent, and the electronic device has high reliability.

The input device or the liquid crystal device (electro-optical device) of the above embodiment is the PDA described above.
However, the present invention can be mounted on various electronic devices. Examples of such electronic devices include mobile phones, electronic books, personal computers, digital still cameras, liquid crystal televisions, viewfinder type or monitor direct view type video tape recorders, car navigation devices, pagers, electronic notebooks, calculators, word processors, workstations. ,Videophone,
There are POS terminals, printing devices, and the like. The input device can be suitably used as these input means, and the liquid crystal device can be suitably used as these image display means and input means.

The schematic sectional drawing of the input device which concerns on the 1st and 2nd structural example of an input device. FIG. 2 is a schematic plan view corresponding to FIG. 1. The exploded perspective view of a touch panel. The figure which shows the manufacturing process of the input device which concerns on a 1st structural example. The figure which shows the manufacturing process of the input device which concerns on a 1st structural example. The schematic sectional drawing of the input device which concerns on a 3rd structural example. The figure which shows the manufacturing process of the input device which concerns on a 3rd structural example. The figure which shows the manufacturing process of the input device which concerns on the 4th and 5th structural example. 1 is a schematic cross-sectional view of a liquid crystal device that is an embodiment of an electro-optical device. FIG. 11 is a perspective view illustrating an example of an electronic apparatus according to the invention. The perspective view which shows the conventional touch panel built-in type PDA.

Explanation of symbols

2 Liquid crystal panel (electro-optical panel), 3 input device, 4 touch panel (input panel)
4s main surface, 16 terminal portion, 30, 130 film member, 31 back side film member, 30a, 130a, 45b, 46a, 132a opening, 40A, 40B, 40C, 4
0D, 40E input device, 42, 50 adhesive, 43 stepped portion, 45 cover member, 45
a housing part, 45A panel support part, 45s main surface, 46 light shielding film, 100A liquid crystal device (electro-optical device), 131 first resin layer, 132 second resin layer, 200 PDA (electronic device)

Claims (12)

An input panel;
A housing member provided with a housing portion comprising an opening for housing the input panel;
A film member bonded across one surface of the input panel disposed in the housing portion and one surface of the housing member;
A back-side film member bonded across the other surface of the input panel disposed in the housing portion and the other surface of the housing member;
I have a,
The input device is housed in the housing portion, and the input panel and the housing member that houses the input panel are sandwiched between the film member and the back film member . A light-shielding film disposed between the housing member and the film member;
The input device according to claim 1, wherein the light shielding film has an opening corresponding to an input portion of the input panel.   The input device according to claim 1, wherein the film member has an opening in a plane region of the main surface of the input panel.   The said film member has the structure which laminated | stacked the 1st resin layer and the 2nd resin layer which consists of a resin material whose hardness is lower than the said 1st resin layer, The any one of Claim 1 to 3 characterized by the above-mentioned. The input device according to item.   The input device according to claim 4, wherein the second resin layer has an opening in a planar area of the input panel. 6. The panel support part which contacts the said input panel and supports the peripheral part of the said one surface of the said input panel is formed in the said accommodating part of the said accommodating member, The any one of Claim 1 to 5 characterized by the above-mentioned. The input device according to claim 1. The input device according to claim 6, wherein the panel support portion is formed in a frame shape protruding from the inner wall on one surface side of the housing portion into the housing portion. The input device according to claim 1, wherein an adhesive is disposed between the input panel and the housing member. An input panel, an accommodating member accommodating portion composed of an opening is provided for accommodating the input panel, and one face of the input panel disposed in the housing portion, over the one surface of said housing member and the bonded film member, and the other surface of the input panel disposed in the housing portion, and an input device having a back-side film member which is bonded over the other surface of the accommodating member,
An electro-optical panel disposed on the back film member side of the input device ;
Equipped with a,
The input panel is housed in the housing portion, and the input panel and the housing member that houses the input panel are sandwiched between the film member and the back film member,
The electro-optical device, wherein the electro-optical panel is fixed to the input device with the translucent adhesive .   The electro-optical device according to claim 9, wherein the translucent adhesive is an adhesive including an elastic body.   An electronic apparatus comprising the input device according to claim 1. An electronic apparatus comprising the electro-optical device according to claim 9 .

Images