JP4613979B2 - Touch panel, display device with input function, and electronic device - Google Patents

Description

The present invention relates to a touch panel provided with a resistance film type input region capable of detecting a position touched by a finger or the like, a display device with an input function provided with the touch panel, and an electronic apparatus.

In recent years, electronic devices such as mobile phones, car navigation systems, personal computers, ticket vending machines, and bank terminals have been provided with an input device called a touch panel on the surface of a liquid crystal device or the like and displayed in an image display area of the liquid crystal device. Some can input information while referring to images.

Among such touch panels, in the resistive film type touch panel, the first electrode and the second electrode are formed on the mutually opposing surfaces of the first substrate and the second substrate, respectively, in the first substrate and the second substrate arranged to face each other. The input coordinates are detected by detecting the contact position between the first electrode and the second electrode when the second substrate is pressed. In addition, as a touch panel, an electrode is formed on a single substrate, and when a finger or the like touches or approaches, the capacitance that detects the input coordinates by detecting that the capacitance coupled to the electrode changes is detected. There is also a type. Here, unlike a resistive touch, a capacitive touch panel can be input without contact, so it has the advantage of being excellent in durability, while having to input with a finger. There are drawbacks such as being unable to input.

In view of this, there has also been proposed a technique in which a resistance film type touch panel and a capacitance type touch panel manufactured separately are stacked in close contact with each other so that a plurality of types of pressing states can be detected (Patent Document 1).
reference).

JP 7-334308 A

Here, the present inventor proposes a touch panel in which various input methods are possible, such as pen input is possible while scrolling the screen with a finger, and each input area is arranged in a plane. is there.

However, when configuring such a touch panel, like the configuration described in Patent Document 1,
The separately prepared was a resistive film-type touch panel and a capacitive touch panel is arranged on top in a plan view configuration, the cost for producing each of the touch panel separately increases, it becomes thicker thickness There is a problem. In addition, the area occupied by the frame region surrounding the electrical connection region and each region becomes large, and there is a problem that only a narrow input region can be secured. In addition, when a resistive film type touch panel and a capacitance type touch panel are arranged so as to overlap in a plane, and a display device is also arranged so as to overlap, for example, an area used for scrolling a screen and an area for pen input Since the display contents of the display device cannot be made different from each other, there is a problem that it is difficult to perform an appropriate display for prompting input.

In view of the above problems, an object of the present invention is to provide a configuration capable of providing a touch panel having a wide input area and a plurality of input methods at a low cost.

Moreover, the subject of this invention is providing the display apparatus with an input function provided with this touch panel, and the electronic device provided with the touch panel.

In order to solve the above problems, the present invention provides a first substrate having a first surface and a second surface, and the first substrate .
A second substrate having a first surface and a second surface; a first electrode formed on the first surface of the first substrate; and a first surface of the second substrate. A resistive film type input region in which the first electrode of the first substrate and the second electrode of the second substrate are arranged to face each other. And a plan view on the first surface of the first substrate .
In at least one of the region overlapping with the second substrate and the first surface of the second substrate , the static electricity is formed by a third electrode formed in a region different from the resistance film type input region in plan view. A capacitive input region , wherein the capacitive input region is input from the third electrode.
A light-shielding input region is formed by a light-shielding layer disposed on the operation side, and the first substrate and
Each of the second substrates is a glass substrate, and the second substrate is thicker than the first substrate.
Is thin .

In the present invention, since the resistive input area and the capacitive input area are configured on one touch panel, the screen is scrolled with a finger in the capacitive input area, while the resistive input area is Since information can be input by various input methods such as pen input, it is convenient. Also, since the resistive film type input area and the capacitive type input area are arranged at positions shifted in plan view, a configuration for performing optimum information input in each of the resistive film type input area and the capacitive type input area Can be realized. Furthermore, for forming the capacitance type input region using at least one of the first substrate and the second substrate on which the first electrode and the second electrode forming the resistance film type input region are formed. Since the third electrode is configured, unlike a configuration in which a resistive film type touch panel and a capacitive type touch panel separately manufactured are arranged in a plane,
Low cost can be achieved. In addition, since the electrical connection area and the frame area surrounding each area can be shared, a wide input area can be secured.

In the present invention, it is preferable that the third electrode is formed on one of the first surface of the first substrate and the first surface of the second substrate. With this configuration, the conductive film necessary for forming the capacitive input region using the first electrode or the second electrode forming step, for example, the third electrode, a part of the third electrode, Alternatively, a shield layer for the capacitance type input region can be formed, and productivity can be improved.

In the present invention, of the first surface of the first substrate and the first surface of the second substrate, the first surface of the substrate on which the third electrode is formed includes the resistance film type input region and the It is preferable that a wiring member for outputting a signal from the capacitance type input region to the outside is connected. If comprised in this way, wiring members, such as a flexible substrate, should just be connected only to the 1st surface of the board | substrate with which the 3rd electrode is formed.

In the present invention, of the first surface of the first substrate and the first surface of the second substrate, the third surface
A wiring member for outputting a signal from the resistance film type input region and the capacitance type input region to the outside is connected to the first surface of the substrate opposite to the side on which the electrodes are formed, and the first substrate. Even if it adopts a configuration in which an inter-substrate conductive material for outputting a signal from the capacitive input region to the outside is disposed between the first surface of the second substrate and the first surface of the second substrate. Good. If comprised in this way, what is necessary is just to connect wiring members, such as a flexible substrate, only to the 1st surface of the board | substrate on the opposite side to the side in which the 3rd electrode is formed.

In the present invention, it is preferable that the wiring member is connected to the first surface of the first substrate. In addition, since the second substrate disposed on the input operation side is required to be flexible, it is not suitable for connecting the wiring member in terms of its thin thickness. Since the wiring member is connected to one substrate, a highly reliable connection portion can be configured.

The touch panel to which the present invention is applied can be used for a display device with an input function. In this case, an image generation device is arranged on the opposite side of the first substrate from the second substrate side.

In the present invention, the resistance film type input region is formed by the transparent input region, the image generation apparatus preferably includes an image display area in a region which overlaps with the light-transmitting input area.

In the present invention, the image generation device includes a pair of substrates and an electro-optical material held between the pair of substrates, and the first substrate also serves as one of the pair of substrates. It is characterized by. With this configuration, the number of image generation devices or touch panel substrates can be reduced, and thus the thickness of the display device with an input function can be reduced. Furthermore, for example, the area used for scrolling the screen and the area for pen input can be separated, so that the display content of the image generation device can be switched to an appropriate display according to the function of each input area. Therefore, operability can be improved.

Input function-equipped display device according to the present invention, a mobile phone, a car navigation system, a personal computer, ticket vending machines, Ru is used in electronic devices such as a bank of terminals.

Embodiments of the present invention will be described with reference to the drawings. In the drawings to be referred to in the following description, the scales are different for each layer and each member so that each layer and each member have a size that can be recognized on the drawing.

[Embodiment 1]
(overall structure)
1 and 2 are explanatory diagrams schematically showing the configuration of a display device with an input function to which the present invention is applied. In FIG. 2, the numbers of the electrodes of the touch panel and the pixel electrodes and counter electrodes of the liquid crystal device are simplified.

1 and 2, the display device with an input function 100 according to the present embodiment generally includes a liquid crystal device 5 as an image generating device and a touch panel disposed on the surface of the liquid crystal device 5 that emits display light. 1 (input device).

The liquid crystal device 5 includes a transmissive, reflective, or transflective active matrix liquid crystal panel 5a. In this embodiment, since the liquid crystal panel 5a is a transmission type, a backlight device (not shown) is disposed on the side opposite to the display light emission side. Further, the liquid crystal device 5
The first polarizing plate 81 is disposed on the display light emission side with respect to the liquid crystal panel 5a, and the second polarizing plate 82 is disposed on the opposite side.

The liquid crystal panel 5 a includes a translucent element substrate 50 disposed on the display light emitting side, and a translucent counter substrate 60 disposed to face the element substrate 50. The counter substrate 60 and the element substrate 50 are bonded together by a frame-shaped sealing material 71, and the liquid crystal layer 55 (electro-optical material) is disposed in a region surrounded by the sealing material 71 between the counter substrate 60 and the element substrate 50. Layer) is retained.

A plurality of pixel electrodes 58 are formed on the surface of the element substrate 50 facing the counter substrate 60, and a common electrode 68 is formed on the surface of the counter substrate 60 facing the element substrate 50. The common electrode 68 may be formed on the element substrate 50 side. Also, the counter substrate 60
May be arranged on the display light emitting side.

In the element substrate 50, a driving IC is provided in the protruding region 59 protruding from the edge of the counter substrate 60.
75 is COG mounted, and a flexible substrate 73 is connected to the overhang region 59. Note that a drive circuit may be formed on the element substrate 50 simultaneously with the switching elements on the element substrate 50.

(Detailed configuration of touch panel 1)
In the touch panel 1 of this embodiment, the input area 100a includes a resistance film type input area 101 and a capacitance type input area 102 described below.
01 and the capacitance-type input region 102 are arranged at positions shifted in plan view.

In this embodiment, the touch panel 1 includes a translucent first substrate 10 made of a glass plate, a plastic plate, or the like, and a translucent second substrate 20 made of a glass plate, a plastic plate, or the like. Then, a glass plate is used for both the first substrate 10 and the second substrate 20. Here, the 1st board | substrate 10 and the 2nd board | substrate 20 are bonded together by the frame-shaped sealing material 31 so that the 1st surfaces 11 and 21 may oppose through a predetermined clearance gap. The second substrate 20 is disposed on the input operation side, and the first substrate 10 is disposed on the liquid crystal device 5 side. For this reason, the second substrate 20 has the second surface 22 facing the input operation side, and the first substrate 10 has the second surface 12 facing the liquid crystal device 5 side. In the touch panel 1 configured as described above, the second substrate 20 needs to bend when performing input in the resistive film type input region 101. Therefore, the second substrate 20 is thinner than the first substrate 10 and has flexibility.

On the first surface 11 of the first substrate 10, a flexible substrate 33 is connected to an overhang region 13 that projects from the edge of the second substrate 20. The flexible substrate 33 is a common wiring member for outputting a signal from the resistance film type input region 101 and the capacitance type input region 102 to the outside.

The sealing material 31 includes an outer frame portion 31a along the outer peripheral edge of the second substrate 20, and a partition frame portion 31b that connects the sides in the vicinity of the middle of two sides facing each other in the outer frame portion 31a. An almost entire area surrounded by 31 is an input area 100a. Input area 1
00a has a resistive film type input region 101 on one side (the side far from the side where the flexible substrate 33 is connected) with respect to the partition frame portion 31b, while the other side (the flexible substrate 33 is connected). Side) is the capacitive input region 102.

In the touch panel 1, in the resistance film type input region 101, a transparent first electrode 15 made of an ITO film (Indium Tin Oxide) is formed on the first surface 11 of the first substrate 10, and the second substrate 20.
A transparent second electrode 25 made of an ITO film is formed on the first surface 21, and the inside thereof is an air layer.

A wiring pattern (not shown) is formed on the first surface 11 of the first substrate 10 from the first electrode 15 toward the overhanging region 13, and the wiring pattern leads the first substrate 15 to the flexible substrate 33. Signal output is possible. Further, the seal 31 is blended with an inter-substrate conducting material 30 made of plastic beads having a metal layer formed on the surface, and the inter-substrate conducting material 30 is connected to the first surface 11 of the first substrate 10 and the second surface 11. The second electrode 25 formed on the first surface 21 of the second substrate 20 and the first surface of the first substrate 10 interposed between the first surface 21 of the substrate 20 and the first surface 21 of the first substrate 10.
Conductive connection is made with a wiring pattern (not shown) formed on the surface 11. Such inter-substrate conducting material 3
0 and the wiring pattern enable signal output from the second electrode 25 to the flexible substrate 33.

In the resistive film input area 101 configured as described above, when the second substrate 20 is pressed, the first electrode 15 and the second electrode 25 are in contact with each other at the pressed position. Detect coordinates. Therefore, in the resistance film input area 101, information can be input by pressing a predetermined area of the second substrate 20 with a finger or a pen.

In the touch panel 1, in the capacitive input region 102, the first surface 11 of the first substrate 10.
Further, a light-transmitting shield layer 16 made of an ITO film, a light-transmitting insulating film 17 made of a silicon oxide film and the like, and light-transmitting third electrodes 18 and 19 made of an ITO film are formed in this order. Here, the shield layer 16 has a function of preventing the influence of external noise.

The third electrodes 18 and 19 are composed of, for example, a plurality of rows of electrode patterns extending in a direction intersecting each other, and the third electrodes 18 and 19 are schematically shown in FIG. Here, the third electrodes 18 and 19 employ a configuration having a wide area portion called a pad, a configuration in which triangle patterns in opposite directions are alternately arranged, and the like. In either case, the third
A wiring pattern (not shown) extends from the electrodes 18 and 19 toward the overhanging region 13.
With such a wiring pattern, signals can be output from the third electrodes 18 and 19 to the flexible substrate 33.

In the capacitance-type input region 102 configured in this way, when a charge is applied by sequentially applying a voltage to the plurality of electrodes 18, 19, if a finger as a conductor contacts or approaches any location,
Capacitance is formed between the electrodes 18 and 19 and the finger, and the capacitance detected via the electrodes 18 and 19 is reduced. Therefore, it is possible to detect where the finger touches or approaches. it can. Therefore, in the capacitance type input area 102, information can be input with a finger in a non-contact state. However, in the capacitive input area 102, it is impossible to input with a pen made of an insulating material.

With respect to the touch panel 1 configured as described above, a sheet 91 is arranged on the input operation side, and a light shielding layer 92 is formed in a frame shape on the inner surface (the surface facing the touch panel 1) of the sheet 91. ing. Here, the light shielding layer 92 is formed in a region that overlaps the capacitance type input region 102, but is not formed in a region that overlaps the resistance film input region 101. On the other hand, the resistive film input region 101 is a light-transmitting region while being a light-shielding region. The image display area 5 b of the liquid crystal device 5 overlaps the resistance film input area 101. Therefore, in the display device with an input function 100 according to the present embodiment, an image displayed on the liquid crystal device 5 can be viewed from the input operation side via the resistive film input region 101. On the contrary,
In the capacitance type input area 102, a figure representing the cursor key 95 is printed on the outer surface (the input operation side surface) of the sheet 91. A hard coat layer or the like is formed on the outer surface of the sheet 91 as necessary. Further, if the sheet 91 is a sheet 91 having the function of the polarizing plate 81, the first polarizing plate 8 can be obtained by serving as the sheet 91 and the first polarizing plate 81.
1 can be omitted, and the thickness of the touch panel 1 can be reduced. further,
The function of the polarizing plate 81 is not limited to the sheet 91, and any member disposed on the display light emitting side with respect to the liquid crystal panel 5a may have the function of the polarizing plate 81.

(Main effects of this form)
As described above, in this embodiment, since the resistive film type input area 101 and the capacitive type input area 102 are configured on one touch panel 1, the cursor key is touched with a finger in the capacitive type input area 102. The touch panel 1 of this embodiment is configured such that the screen displayed on the liquid crystal device 5 is scrolled by instructing 95, while the selection button displayed on the liquid crystal device 5 is selected by pen input in the resistance film type input area 101. Since it is possible to input information by various input methods, it is easy to use.

Further, the resistive film type input region 101 and the capacitive type input region 102 are located at positions shifted in plan view.
Therefore, while looking at the screen displayed on the liquid crystal device 5, the capacitance type input region 1 is displayed.
02, you can scroll the screen and enter with the resistive film input area 101, etc.
A configuration in which optimum information input is performed in each of the resistance film type input region 101 and the capacitance type input region 102 can be realized.

Furthermore, the third electrode 18 for configuring the capacitive input region 102 using the first surface 11 of the first substrate 10 on which the first electrode 15 configuring the resistive film input region 101 is formed, 19
Therefore, unlike the configuration in which the resistive touch panel and the capacitive touch panel manufactured separately are arranged in a plane, the number of substrates can be reduced. The first electrode 1
The number of manufacturing steps can be reduced, for example, the shield layer 16 or the third electrodes 18 and 19 can be formed using the forming step 5. Therefore, the cost of the touch panel 1 can be reduced.

Furthermore, since the partition frame portion 31b and the like can be shared by the resistive film type input region 101 and the capacitive type input region 102, the resistive film type input region 101 and the capacitive type input region 102 are each independently sealed. Compared to the case of being surrounded by a material, a wide input area can be secured. Similarly, since the first substrate 10 and the second substrate are connected to each other by the inter-substrate conductive material 30, the common flexible substrate 33 causes the resistance film type input region 101 and the capacitance type input region 102 to go outside. The signal output can be performed. Therefore, it is not necessary to provide a flexible substrate connection region for each of the resistance film type input region 101 and the capacitance type input region 102, which is advantageous for securing a wide input region.

The flexible substrate 33 is connected to the first surface 11 of the first substrate 10, and the first substrate 10 is thicker than the second substrate 20. For this reason, according to this form, compared with the case where a flexible substrate is connected to the 2nd substrate 20, the reliability of the connection part of flexible substrate 33 is high.

[Embodiment 2]
In the first embodiment, the third electrodes 18 and 19 for configuring the capacitive input device 102 are formed on the first substrate 10. However, as described below with reference to FIG. In form,
The third electrodes 18 and 19 are formed on the first surface of the second substrate 20.

FIG. 3 is an explanatory diagram schematically showing a cross-sectional configuration of the display device with an input function 100 according to the second embodiment of the present invention. Since the basic configuration of the present embodiment is the same as that of the first embodiment, common portions are denoted by the same reference numerals, and description thereof is omitted.

As shown in FIG. 3, the display device with an input function 100 according to the present embodiment also has a liquid crystal device 5 and a touch panel disposed on the surface of the liquid crystal device 5 that emits display light, as in the first embodiment. 1. In the touch panel 1, the input area 100 a includes a resistance film type input area 101 and a capacitance type input area 102, which will be described below, and the resistance film type input area 101 and the capacitance type input area. 102 is arranged at a position shifted in plan view.

Also in this embodiment, as in the first embodiment, in the touch panel 1, the resistive film type input region 101 is used.
Then, the transparent first electrode 15 made of an ITO film is formed on the first surface 11 of the first substrate 10,
A light-transmitting second electrode 25 made of an ITO film is formed on the first surface 21 of the second substrate 20, and the inside thereof is an air layer. A wiring pattern (not shown) is formed on the first surface 11 of the first substrate 10 from the first electrode 15 toward the overhanging region 13, and the wiring pattern leads the first substrate 15 to the flexible substrate 33. Signal output is possible. In addition, the inter-substrate conductive material 30 blended in the seal 31 is interposed between the first surface 11 of the first substrate 10 and the first surface 21 of the second substrate 20, and the first surface of the second substrate 20. 2nd electrode 25 currently formed in 21
And a wiring pattern (not shown) formed on the first surface 11 of the first substrate 10 are conductively connected, and the inter-substrate conductive material 30 and the wiring pattern connect the second electrode 25 to the flexible substrate 33. Signal output is possible.

In the present embodiment, in the capacitive input region 102, the translucent third electrodes 18 and 19 are the second ones.
It is formed on the first surface 21 of the substrate 20. However, the inter-substrate conducting material 3 blended in the seal 31
0 is interposed between the first surface 11 of the first substrate 10 and the first surface 21 of the second substrate 20, and third electrodes 18 and 19 formed on the first surface 21 of the second substrate 20. And the first surface 11 of the first substrate 10.
A wiring pattern (not shown) formed on the substrate is conductively connected, and the inter-substrate conductive material 3 is connected.
0 and the wiring pattern enable signal output from the third electrodes 18 and 19 to the flexible substrate 33.

Further, in the capacitance type input region 102, since the light-transmitting shield layer 16 made of an ITO film is formed on the first surface 11 of the first substrate 10, the influence of external noise can be prevented.

With respect to the touch panel 1 configured as described above, a sheet 91 is arranged on the input operation side, and a light shielding layer 92 is formed in a frame shape on the inner surface (the surface facing the touch panel 1) of the sheet 91. ing. Here, the light shielding layer 92 is formed in a region overlapping with the capacitive input region 102, but is not formed in a region overlapping with the resistance film input region 101. For this reason, the capacitive input region 102 is a light shielding region, while the resistive film input region 101 is a light transmitting region. Therefore, in the display device with an input function 100 according to the present embodiment, the image displayed on the liquid crystal device 5 can be viewed from the input operation side through the resistive film input region 101. In the capacitance type input region 102, the sheet is displayed. On the outer surface 91 (the surface on the input operation side), a graphic or the like representing the cursor key 95 is printed. Since other configurations are substantially the same as those of the first embodiment, description thereof is omitted.

Also in the display device with an input function 100 configured as described above, the resistance film type input region 101 and the capacitance type input region 102 are arranged at positions shifted in a plan view as in the first embodiment, so that the usability is improved. The same effects as in the first embodiment are obtained.

In addition, the third electrodes 18 and 19 for configuring the capacitive input region 102 are configured by using the second substrate 20 on which the second electrode 25 configuring the resistive film input region 101 is formed. Unlike the configuration in which the resistive touch panel and the capacitive touch panel manufactured separately are arranged in a plane, the number of substrates can be reduced. In addition, the number of manufacturing steps can be reduced, for example, the third electrodes 18 and 19 can be formed using the step of forming the second electrode 25.
Therefore, the same effects as those of the first embodiment can be achieved, such as cost reduction of the touch panel 1.

[ Reference Example 1 of the present invention ]
In the first and second embodiments, the capacitive input region 102 is a light shielding region, while the resistive film input region 101 is a light-transmitting region, and the liquid crystal device 5 is provided only in the resistive film input region 101. In the present embodiment, both the capacitance type input region 102 and the resistance film input region 101 are displayed as described below with reference to FIG. It is a translucent area, and an image displayed on the liquid crystal device 5 can be viewed from the input operation side in both the capacitance type input area 102 and the resistive film input area 101.

FIG. 4 is an explanatory view schematically showing a cross-sectional configuration of the display device with an input function 100 according to the first reference example of the present invention. Since the basic configuration of this embodiment is the same as that of Embodiments 1 and 2, common portions are denoted by the same reference numerals and are not described.

As shown in FIG. 4, the display device with an input function 100 according to the present embodiment is also arranged so as to overlap the liquid crystal device 5 and the surface of the liquid crystal device 5 that emits display light, as in the first and second embodiments. Touch panel 1. In the touch panel 1, the input area 100 a includes a resistance film type input area 101 and a capacitance type input area 102 described below.
The resistance film type input region 101 and the capacitance type input region 102 are arranged at positions shifted in plan view.

Also in this embodiment, as in the first and second embodiments, in the touch panel 1, the resistance film type input region 1 is used.
In 01, a light-transmitting first electrode 15 made of an ITO film is formed on the first surface 11 of the first substrate 10, and a light-transmitting second electrode made of an ITO film is formed on the first surface 21 of the second substrate 20. An electrode 25 is formed;
The inside is an air layer. In addition, the inter-substrate conductive material 30 blended in the seal 31 is interposed between the first surface 11 of the first substrate 10 and the first surface 21 of the second substrate 20, and the first surface of the second substrate 20. The second electrode 25 formed on 21 and the wiring pattern (not shown) formed on the first surface 11 of the first substrate 10 are conductively connected, and the inter-substrate conductive material 30 and the wiring pattern The signal output from the second electrode 25 to the flexible substrate 33 is possible.

In the present embodiment, in the capacitive input region 102, a third light-transmitting property is provided as in the second embodiment.
Electrodes 18 and 19 are formed on the first surface of the second substrate 20. However, the inter-substrate conductive material 30 blended in the seal 31 is interposed between the first surface 11 of the first substrate 10 and the first surface 21 of the second substrate 20, and the first surface of the second substrate 20. The third electrodes 18 and 19 formed on the substrate 21 and the wiring pattern (not shown) formed on the first surface 11 of the first substrate 10 are conductively connected. A signal can be output from the third electrodes 18 and 19 to the flexible substrate 33 depending on the pattern. In the capacitive input region 102, the first
A translucent shield layer 16 made of an ITO film is formed on the first surface 11 of the substrate 10.

Here, the capacitive input region 102 is filled with an insulating high refractive index material 14 such as methacrylate resin between the first substrate 10 and the second substrate 20. The high refractive index material 14 is, for example, a liquid material that is injected and filled from a discontinuous portion of the sealing material 31, or a solid material that is filled and solidified in a liquid state. The interrupted portion 31 is sealed.

With respect to the touch panel 1 configured as described above, a sheet 91 is arranged on the input operation side, and a light shielding layer 92 is formed in a frame shape on the inner surface (the surface facing the touch panel 1) of the sheet 91. ing. However, in this embodiment, the light shielding layer 92 is generally formed only in a region overlapping with the sealing material 31 and functions only as a frame.

For this reason, the light shielding layer 92 is not formed in a region overlapping the capacitance type input region 102 and the resistance film input region 101, and the capacitance type input region 102 and the resistance film input region 101.
Both are translucent areas. Further, in the liquid crystal device 5, the entire region overlapping the capacitance type input region 102 and the resistive film input region 101 is an image display region 5b. Therefore, in the display device 100 with an input function of the present embodiment, in the resistive film input area 101, an image displayed on the liquid crystal device 5 can be viewed from the input operation side, and the capacitive input area 102 is displayed.
Also, the image displayed on the liquid crystal device 5 can be viewed from the input operation side. Further, since the light shielding layer 92 functions as a frame of the capacitance type input region 102 and the resistive film input region 101, a wiring pattern (not shown) disposed on the seal material 31 and the periphery of the touch panel 1 from the input operation side. Can be prevented from being visually recognized. Further, the display content of the image display area is divided into the capacitive input area 102 and the resistive film input area 101 by the light shielding layer 92. As a result, the capacitive input region 102 and the resistive film input region 101 are visually separated, so that the operator can separate the capacitive input region 102 and the resistive film input region 101 from each other. As a result, it is easy to recognize and leads to improvement in operability. Since other configurations are substantially the same as those of the first embodiment, description thereof is omitted.

Even in the display device with an input function 100 configured as described above, the resistance film type input region 101 and the capacitance type input region 102 are arranged at positions shifted in a plan view as in the first and second embodiments. The same effects as in the first and second embodiments, such as ease of use, are obtained.

Similarly to the second embodiment, the third electrode for configuring the capacitive input region 102 using the second substrate 20 on which the second electrode 25 configuring the resistive film type input region 101 is formed. 18
19, unlike the configuration in which a resistive touch panel and a capacitive touch panel that are separately manufactured are arranged in a plane, the cost can be reduced. Has the same effect as

Furthermore, since the image displayed on the liquid crystal device 5 can be viewed from the input operation side in both the capacitive input area 102 and the resistive film input area 101, the capacitive input area 1
02 and the resistance film input area 101 can input information while viewing the image displayed on the liquid crystal device 5 from the input operation side. Even in such a case, since the capacitive input region 102 is filled with the insulating high refractive index material 14 between the first substrate 10 and the second substrate 20, there is no reflective interface. A bright image can be displayed.

[Embodiment 3 ]
In the first and second embodiments, the first substrate 10 is larger than the second substrate 20, but FIG.
In this embodiment, the first substrate 10 is smaller than the second substrate 20 as described below with reference to FIG. In the first and second embodiments , the resistance film type input region 101 and the capacitance type input region 10 are used.
2 are each surrounded by a sealing material 31, but as described below with reference to FIG. 5, in this embodiment, the resistance film type input region 101 is surrounded by the sealing material 31. The capacitive input region 102 is not surrounded by the sealing material 31.

FIG. 5 is an explanatory diagram schematically showing a cross-sectional configuration of the display device 100 with an input function according to the third embodiment of the present invention. Since the basic configuration of this embodiment is the same as that of Embodiments 1 and 2, common portions are denoted by the same reference numerals and are not described.

As shown in FIG. 5, the display device with an input function 100 according to the present embodiment is also arranged so as to overlap the liquid crystal device 5 and the surface on the side where the display light is emitted in the liquid crystal device 5, as in the first and second embodiments. Touch panel 1. In the touch panel 1, the input area 100 a includes a resistance film type input area 101 and a capacitance type input area 102 described below.
The resistance film type input region 101 and the capacitance type input region 102 are arranged at positions shifted in plan view.

In this embodiment, the first substrate 10 is smaller than the second substrate 20, but the first surface 1 of the first substrate 10.
A flexible substrate 33 is connected to one end portion. For this reason, the flexible substrate 33 is connected to a position facing the second substrate 20 on the first surface 11 of the first substrate 10.

The seal 31 is formed so as to surround only the resistance film type input region 101, and the capacitance type input region 102 is not surrounded by the seal material 31.

Also in this embodiment, the inter-substrate conductive material 30 blended in the seal 31 is the same as in the first embodiment.
A second electrode 25 formed on the first surface 21 of the second substrate 20, interposed between the first surface 11 of the substrate 10 and the first surface 21 of the second substrate 20; A wiring pattern (not shown) formed on the first surface 11 is conductively connected, and the signal output from the second electrode 25 to the flexible substrate 33 is enabled by the inter-substrate conductive material 30 and the wiring pattern. ing.

In the present embodiment, in the capacitive input region 102, the translucent third electrodes 18 and 19 are the second ones.
It is formed on the first surface of the substrate 20. However, the inter-substrate conducting material 30 blended in the seal 31 is interposed between the first surface 11 of the first substrate 10 and the first surface 21 of the second substrate 20, so that the second substrate 2.
The third electrodes 18 and 19 formed on the first surface 21 of 0 and the wiring pattern (not shown) formed on the first surface 11 of the first substrate 10 are conductively connected, and between the substrates The conductive material 30 and the wiring pattern enable signal output from the third electrodes 18 and 19 to the flexible substrate 33.

With respect to the touch panel 1 configured as described above, a sheet 91 is arranged on the input operation side, and a light shielding layer 92 is formed in a frame shape on the inner surface (the surface facing the touch panel 1) of the sheet 91. ing. Here, the light shielding layer 92 is formed in a region overlapping with the capacitive input region 102, but is not formed in a region overlapping with the resistance film input region 101. For this reason, the capacitive input region 102 is a light shielding region, while the resistive film input region 101 is a light transmitting region. Therefore, in the display device with an input function 100 according to the present embodiment, the image displayed on the liquid crystal device 5 can be viewed from the input operation side through the resistive film input region 101. In the capacitance type input region 102, the sheet is displayed. On the outer surface 91 (the surface on the input operation side), a graphic or the like representing the cursor key 95 is printed. Since other configurations are substantially the same as those of the first and second embodiments, the description thereof is omitted.

Even in the display device with an input function 100 configured as described above, the resistance film type input region 101 and the capacitance type input region 102 are arranged at positions shifted in a plan view as in the first and second embodiments. The same effects as in the first and second embodiments, such as ease of use, are obtained.

In addition, since the third electrodes 18 and 19 for configuring the capacitive input region 102 are configured using the second substrate 20 on which the second electrode 25 that configures the resistive film type input region 101 is formed,
Unlike the configuration in which a resistive film type touch panel and a capacitive touch panel manufactured separately are arranged in a plane, the same effects as in the first and second embodiments can be achieved, such as low cost.

[ Embodiment 4 ]
In the first to third embodiments, the flexible substrate 33 connected to the first substrate 10 for the signal output from the resistive film type input region 101 and the capacitance type input region 102 to the outside is used. See FIG. As will be described below, in this embodiment, the flexible film 33 connected to the first substrate 10 is used to output a signal output from the first electrode 15 of the resistive film type input region 101 to the outside, and the resistive film type input region 101 is used. A flexible substrate connected to the second substrate 20 is used for signal output from the first electrode 15 and the capacitive input region 102 to the outside.

FIG. 6 is an explanatory diagram schematically showing a cross-sectional configuration of the display device 100 with an input function according to the fourth embodiment of the present invention. In addition, since the basic structure of this form is the same as that of Embodiment 1-3, it attaches and illustrates in figure the common part, and those description is abbreviate | omitted.

As shown in FIG. 6, the display device with an input function 100 according to the present embodiment is also arranged so as to overlap the liquid crystal device 5 and the surface of the liquid crystal device 5 on the side from which display light is emitted, as in the first and second embodiments. Touch panel 1. In the touch panel 1, the input area 100 a includes a resistance film type input area 101 and a capacitance type input area 102 described below.
The resistance film type input region 101 and the capacitance type input region 102 are arranged at positions shifted in plan view.

In this embodiment, the seal 31 is formed so as to surround only the resistance film type input region 101,
The capacitive input region 102 is not surrounded by the sealing material 31. In addition, the inter-substrate conducting material is not blended in the sealing material 31.

The first substrate 10 is smaller than the second substrate 20, but the flexible substrate 33 is connected to the end of the first surface 11 of the first substrate 10. Furthermore, in this embodiment, the first surface 2 of the second substrate 20
A flexible substrate 34 is also connected to one end portion.

In the touch panel 1 configured as described above, in this embodiment, as in the first embodiment, in the resistance film type input region 101, the first transparent electrode 15 made of an ITO film on the first surface 11 of the first substrate 10. Is formed, and the second surface 2 of the second substrate 20 is made of an ITO film and has a translucent second electrode 2.
5 is formed, and the inside is an air layer. A wiring pattern (not shown) is formed on the first surface 11 of the first substrate 10 from the first electrode 15 toward the connection region of the flexible substrate 33, and the first electrode 15 is flexible by the wiring pattern. Signal output to the substrate 33 is possible.

Further, the second electrode 25 is formed on the first surface 21 of the second substrate 20, and wiring is performed on the first surface 21 of the second substrate 20 from the second electrode 25 toward the connection region of the flexible substrate 34. A pattern (not shown) is formed, and the wiring pattern and the flexible substrate 34 enable signal output from the second electrode 25 to the outside. Note that the inter-substrate conductive material 30 blended in the seal 31 causes the second electrode 25 formed on the first surface 21 of the second substrate 20 and the wiring pattern formed on the first surface 11 of the first substrate 10 ( A signal may be output from the second electrode 25 to the flexible substrate 33 by conducting a conductive connection to the flexible substrate 33 (not shown).

In the capacitive input region 102, translucent third electrodes 18 and 19 are formed on the first surface 21 of the second substrate 20. However, a wiring pattern (not shown) is formed on the first surface 21 of the second substrate 20 from the third electrodes 18, 19 toward the connection region of the flexible substrate 34. The third electrodes 18 and 19 can output signals to the outside. Since other configurations are substantially the same as those of the first and second embodiments,
Description is omitted.

Even in the display device with an input function 100 configured as described above, the resistance film type input region 101 and the capacitance type input region 102 are arranged at positions shifted in a plan view as in the first and second embodiments. The same effects as in the first and second embodiments, such as ease of use, are obtained.

In addition, since the third electrodes 18 and 19 for configuring the capacitive input region 102 are configured using the second substrate 20 on which the second electrode 25 that configures the resistive film type input region 101 is formed,
Unlike the configuration in which a resistive film type touch panel and a capacitive touch panel manufactured separately are arranged in a plane, the same effects as in the first and second embodiments can be achieved, such as low cost.

[Embodiment 5 ]
FIG. 7 is an explanatory diagram schematically showing a cross-sectional configuration of the display device with an input function according to the fifth embodiment of the present invention. In the first to fourth embodiments, the sheet 91 is arranged on the input operation side with respect to the touch panel 1. However, in fixing the sheet 91 to the touch panel 1,
As illustrated in FIG. 7, a configuration in which a sheet 91 is attached to the input operation surface side of a frame 90 surrounding the touch panel 1 and the sheet 91 and the touch panel 1 are bonded with an adhesive 95 may be employed. If comprised in this way, regardless of the planar shape of the touch panel 1, according to the shape of the frame 90, the display device with an input function having any shape such as a corner portion having an R shape can be realized.

Although not shown, the first polarizing plate 81 may be disposed on the input operation side of the touch panel 1 by bonding and fixing the first polarizing plate 81 to the sheet 91 shown in FIG. In this case, the first polarizing plate 81 disposed between the touch panel 1 and the liquid crystal device 5 is omitted.

[ Reference Example 2 of the present invention ]
FIG. 9 is an explanatory view schematically showing a cross-sectional configuration of a display device with an input function according to Reference Example 2 of the present invention. In the first to fifth embodiments, the first substrate 10 of the touch panel 1 and the element substrate 50 of the liquid crystal panel 5 are individually arranged. However, as shown in FIG. 10 and the element substrate 50 of the liquid crystal panel 5 may be employed. If comprised in this way, it will become possible to make thin the whole thickness of the display apparatus 100 with an input function. In the case of such a configuration, although not illustrated, the first polarizing plate disposed between the first substrate 10 and the element substrate 50 of the liquid crystal panel 5 is disposed on the front surface or the back surface of the base material 40.

If the sheet 91 is a sheet 91 having the function of the polarizing plate 81, the sheet 91 and the first
By also serving as the polarizing plate 81, the first polarizing plate 81 can be omitted, and the thickness of the display device with an input function 100 can be further reduced. Since other configurations are substantially the same as those of the third embodiment, the description thereof is omitted.

[Other configurations]
In the above embodiment , the screen scroll instruction is given in the capacitance type input area 102 and the pen input is made in the resistance type input area 101.
A method may be employed in which a cursor or the like is instructed in 01 and a definite input is made in the capacitive input area 102. Moreover, normally, the resistive film type input region 101 is set in a stopped state,
A configuration may be adopted in which when the fingertip approach is detected by the capacitance type input region 102, the resistive film type input region 101 is shifted to an operation state using that as a trigger.

In the above embodiment, the liquid crystal device 5 as an image generating device is used. However, an organic electroluminescence device or a plasma display device may be used as the image generating device.

[Example of mounting on electronic devices]
Next, an electronic apparatus to which the display device with an input function 100 according to the above-described embodiment is applied will be described. FIG. 8A shows a configuration of a mobile personal computer including the display device 100 with an input function. The personal computer 2000 includes a display device 100 with an input function as a display unit and a main body 2010. The main body 2010 is provided with a power switch 2001 and a keyboard 2002. FIG. 8B shows a configuration of a mobile phone including the display device 100 with an input function. The cellular phone 3000 includes a plurality of operation buttons 3001, scroll buttons 3002, and the display device 100 with an input function as a display unit. By operating the scroll button 3002, the screen displayed on the display device 100 with an input function is scrolled. FIG. 8C shows a configuration of a personal digital assistant (PDA) to which the display device 100 with an input function is applied. The information portable terminal 4000 includes a plurality of operation buttons 4001 and a power switch 400.
2 and a display device 100 with an input function as a display unit. Power switch 4
When 002 is operated, various kinds of information such as an address book and a schedule book are displayed on the display device 100 with an input function.

Note that electronic devices to which the display device 100 with an input function is applied include those shown in FIG. 8, a digital still camera, a liquid crystal television, a viewfinder type, a monitor direct-view type video tape recorder, a car navigation device, a pager, and an electronic device. Examples include electronic devices such as notebooks, calculators, word processors, workstations, videophones, POS terminals, and bank terminals. And the display apparatus 1 with an input function mentioned above as a display part of these various electronic devices.
00 is applicable.

Explanatory drawing which shows typically the structure of the display apparatus with an input function to which this invention is applied. Explanatory drawing which shows typically the cross-sectional structure of the display apparatus with an input function which concerns on Embodiment 1 of this invention. Explanatory drawing which shows typically the cross-sectional structure of the display apparatus with an input function which concerns on Embodiment 2 of this invention. Explanatory drawing which shows typically the cross-sectional structure of the display apparatus with an input function which concerns on the reference example 1 of this invention. Explanatory drawing which shows typically the cross-sectional structure of the display apparatus with an input function which concerns on Embodiment 3 of this invention. Explanatory drawing which shows typically the cross-sectional structure of the display apparatus with an input function which concerns on Embodiment 4 of this invention. Explanatory drawing which shows typically the cross-sectional structure of the display apparatus with an input function which concerns on Embodiment 5 of this invention. Explanatory drawing of the electronic device using the display apparatus with an input function which concerns on this invention. Explanatory drawing which shows typically the cross-sectional structure of the display apparatus with an input function which concerns on the reference example 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Touch panel, 5 ... Liquid crystal device, 10 ... 1st board | substrate, 11 ... 1st surface of 1st board | substrate, 15 ...
First electrode of first substrate, 20 ... second substrate, 21 ... first surface of second substrate, 25 ... second of second substrate
Electrode 30 ... Conductive material between substrates 31 ... Seal material 100 ... Display device with input function 101 ...
Resistance film type input region, 102... Capacitance type input region.

Claims (9)

A first substrate having a first surface and a second surface;
A second substrate provided on the input operation side with respect to the first substrate and having a first surface and a second surface;
A first electrode formed on a first surface of the first substrate;
A second electrode formed on the first surface of the second substrate, and a touch panel comprising:
A resistance film type input region in which the first electrode of the first substrate and the second electrode of the second substrate are disposed to face each other;
Formed in a region that overlaps the second substrate in plan view on the first surface of the first substrate and in a region different from the resistance film type input region in plan view in at least one of the first surface of the second substrate . A capacitance-type input region configured by the third electrode formed,
The capacitive input region is formed as a light-shielding input region by a light-shielding layer disposed on the input operation side from the third electrode ,
The first substrate and the second substrate are both glass substrates, and the second substrate is a front substrate.
A touch panel having a thickness smaller than that of the first substrate . The touch panel as set forth in claim 1, wherein the third electrode is formed on one of the first surface of the first substrate and the first surface of the second substrate. Of the first surface of the first substrate and the first surface of the second substrate, the first surface of the substrate on which the third electrode is formed has the resistance film type input region and the capacitance The touch panel according to claim 2, wherein a wiring member that outputs a signal from the mold input area to the outside is connected. Of the first surface of the first substrate and the first surface of the second substrate, the first surface of the substrate opposite to the side on which the third electrode is formed has the resistance film type input region and the A wiring member that outputs a signal from the capacitive input area to the outside is connected,
Between the first surface of the first substrate and the first surface of the second substrate, an inter-substrate conductive material for outputting a signal from the capacitance type input region to the outside is disposed. The touch panel as set forth in claim 2, wherein: The touch panel according to claim 3, wherein the wiring member is connected to a first surface of the first substrate. A display device with an input function, comprising the touch panel according to any one of claims 1 to 5,
A display device with an input function, wherein an image generating device is arranged on the opposite side of the first substrate to the second substrate side. The resistive film type input region is formed as a translucent input region,
The display device with an input function according to claim 6, wherein the image generation device includes an image display region in a region overlapping with the translucent input region. The image generation apparatus includes a pair of substrates and an electro-optical material held between the pair of substrates, and the first substrate also serves as one of the pair of substrates. The display device with an input function according to claim 6 or 7. An electronic apparatus comprising the display device with an input function according to claim 6.

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