JP2013047937A - Light shield unit, input unit, display unit, and electronic device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light shield unit capable of reducing the possibility that a light shield layer is peeled off from a principal surface of a substrate, an input unit, a display unit, and an electronic device.SOLUTION: A light shield unit includes: a substrate 2 having a first principal surface 2a, a second principal surface 2b positioned opposite to the first principal surface 2a, and an end surface 2c adjacent to the first principal surface 2a and the second principal surface 2b; and a light shield layer 6 provided on the second principal surface 2b of the substrate 2. The light shield layer 6 is provided away from an end portion 21c of the end surface 2c of the substrate 2 on the second principal surface 2b side.

Description

  The present invention relates to a light shielding device, an input device, a display device, and an electronic apparatus.

  As an input device, for example, a capacitive touch panel that detects a change in capacitance between a finger and a detection electrode and detects an input position is known (see, for example, Patent Documents 1 and 2). .

  Such an input device has an input area and a non-input area. The input device includes a base body having a main surface and an end surface adjacent to the main surface. The input device includes a detection electrode provided on the main surface of the substrate corresponding to the input area and a detection electrode electrically connected to the detection electrode provided on the main surface of the substrate corresponding to the non-input area. Wiring and a light shielding layer provided on the main surface of the base corresponding to the non-input area are provided. The light shielding layer has a role for decorating the non-input area.

JP 2008-97283 A JP 2008-310551 A

  However, in the above conventional input device, since the light shielding layer is provided up to the end of the main surface side of the end surface of the base, the light shielding layer starts from the light shielding layer provided immediately before the end. There was a possibility of peeling from the main surface.

  The present invention has been made in view of the above problems, and its object is to provide a light shielding device, an input device, a display device, and a light shielding device that can reduce the possibility that the light shielding layer will be peeled off from the main surface of the substrate. It relates to electronic equipment.

  One aspect of the light-shielding device of the present invention includes a main surface and a base having an end surface adjacent to the main surface, and a light-shielding layer provided on the main surface of the base. The end surface of the base is provided apart from the end on the main surface side.

  One aspect of the input device of the present invention is an input device having an input region and a non-input region, the light shielding device is positioned corresponding to the input region, and the base of the light shielding device The detection electrode provided on the main surface, and is positioned corresponding to the non-input area, provided on the main surface of the base in the light shielding device, and electrically connected to the detection electrode And the light shielding layer is positioned corresponding to the non-input area.

  One aspect of the display device of the present invention includes the above-described input device, a display panel arranged to face the input device, and a housing in which the display panel is accommodated.

  One embodiment of the electronic device of the present invention includes the above display device.

  The light shielding device, the input device, the display device, and the electronic device of the present invention have an effect that the possibility that the light shielding layer is peeled off from the main surface of the substrate can be reduced.

It is a top view which shows schematic structure of the input device which concerns on this embodiment. It is a top view which shows schematic structure of the input device which concerns on this embodiment, Comprising: It is the figure which saw through the base | substrate. It is sectional drawing cut | disconnected along the cutting line II shown in FIG. It is sectional drawing cut | disconnected along the cutting line II-II shown in FIG. It is sectional drawing cut | disconnected along the cutting line III-III shown in FIG. It is sectional drawing which shows schematic structure of the display apparatus which concerns on this embodiment. It is a perspective view which shows schematic structure of the portable terminal which concerns on this embodiment. It is a top view which shows schematic structure of the input device which concerns on the modification 1, Comprising: It is the figure which saw through the base | substrate. It is sectional drawing cut | disconnected along the cutting line IV-IV shown in FIG. It is a top view which shows schematic structure of the input device which concerns on the modification 2, Comprising: It is the figure which saw through the base | substrate. It is sectional drawing cut | disconnected along the cutting line VV shown in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  However, for convenience of explanation, the drawings to be referred to below show simplified main members necessary for explaining the present invention, among the constituent members of one embodiment of the present invention. Therefore, the light-shielding device, the input device, the display device, and the electronic device according to the present invention can include arbitrary constituent members that are not shown in the drawings referred to in this specification.

  As shown in FIG. 1 and FIG. 2, the input device X1 according to the present embodiment is a projected capacitive touch panel. In FIG. 2, unlike FIG. 1, the light shielding layer 6 is shown without being colored. The input device X1 has an input area E1 and a non-input area E2. The input area E1 is an area where the user can perform an input operation. The non-input area E2 is an area where the user cannot perform an input operation. The non-input area E2 according to the present embodiment is located outside the input area E1 so as to surround the input area E1, but is not limited thereto. For example, the non-input area E2 may be located in the input area E1.

  Note that the input device X1 is not limited to a projected capacitive touch panel, and may be a surface capacitive touch panel. The input device X1 may be, for example, a resistive film type touch panel, a surface acoustic wave type touch panel, an infrared type touch panel, or an electromagnetic induction type touch panel.

  As shown in FIGS. 1 to 5, the input device X <b> 1 includes a base 2.

The base 2 has a role of supporting the first detection electrode 3a, the first connection electrode 3b, the second detection electrode 4a, and the second connection electrode 4b in the input region E1, and the detection wiring 8 in the non-input region E2. Have a supporting role. The base 2 has a first main surface 2a, a second main surface 2b located on the opposite side of the first main surface 2a, and an end surface 2c adjacent to the first main surface 2a and the second main surface 2b. . In this embodiment, since the planar view shape of the base body 2 is substantially rectangular, the base body 2 according to this embodiment has four end faces 2c. In addition, the planar view shape of the base 2 may be a substantially rectangular shape with rounded corners as in the present embodiment, or may be a rectangular shape with rounded corners. Moreover, the planar view shape of the base | substrate 2 may be circular shape and polygonal shape, for example.

  The base body 2 is configured to be able to appropriately transmit light in a direction intersecting the first main surface 2a and the second main surface 2b and to have an insulating property. Examples of the constituent material of the substrate 2 include a light-transmitting material such as glass or plastic. Among them, glass is preferable from the viewpoint of visibility. When the constituent material of the substrate 2 is glass, it is preferable to use glass chemically strengthened by ion exchange in order to improve strength. In addition, in this specification, translucency means having transparency with respect to visible light.

  As shown in FIGS. 2-4, on the 2nd main surface 2b of the base | substrate 2 corresponding to the input area | region E1, the 1st detection electrode 3a, the 1st connection electrode 3b, the 2nd detection electrode 4a, the 2nd connection electrode 4b and the insulator 5 are provided.

  The 1st detection electrode 3a has a role which detects the input position in the Y direction of the user's finger | toe F1 which approached the input area E1, and has a function which generate | occur | produces an electrostatic capacitance between the finger | toe F1. Have. That is, the first detection electrodes 3 a are provided on the second main surface 2 b of the base 2 at a predetermined interval along the X direction. Here, from the viewpoint of improving the detection sensitivity, the first detection electrode 3a according to the present embodiment has a substantially rhombus shape in plan view, but is not limited thereto.

  The first connection electrode 3b has a role of electrically connecting the adjacent first detection electrodes 3a. The first connection electrode 3 b is provided on the second main surface 2 b of the base 2.

  The second detection electrode 4a has a role of detecting the input position in the X direction of the user's finger F1 approaching the input area E1, and has a function of generating capacitance between the finger F1 and the second detection electrode 4a. Have. That is, the second detection electrodes 4a are provided on the second main surface 2b of the base 2 with a predetermined interval along the Y direction. Here, from the viewpoint of improving detection sensitivity, the second detection electrode 4a according to the present embodiment has a substantially rhombus shape in plan view, but is not limited thereto.

  The second connection electrode 4b has a role of electrically connecting the adjacent second detection electrodes 4a. The second connection electrode 4b is provided on the insulator 5 so as to straddle the insulator 5 so as to be electrically insulated from the first connection electrode 3b. Here, the insulator 5 is provided on the second main surface 2b of the base 2 so as to cover the first connection electrode 3b. Examples of the constituent material of the insulator 5 include acrylic resin, epoxy resin, silicone resin, silicon dioxide, or silicon nitride.

  Examples of the constituent material of the first detection electrode 3a, the first connection electrode 3b, the second detection electrode 4a, and the second connection electrode 4b include a conductive member having translucency. As a conductive member having translucency, for example, ITO (Indium Tin Oxide), IZO (Indium Zinc Oxide), ATO (Antimony Tin Oxide), AZO (Al-Doped Zinc Oxide), tin oxide, zinc oxide, or Examples thereof include conductive polymers.

  Further, the light shielding layer 6, the insulating layer 7, and the detection wiring 8 are provided on the second main surface 2b of the base 2 corresponding to the non-input area E2.

Shielding layer 6 has the role of decorating the non-input area E2. In the present embodiment, the non-input area E2 is decorated in black by the light shielding layer 6, but it is not limited to black and may be decorated in a color other than black. In the present embodiment, the light shielding layer 6 is provided in a frame shape so as to surround the input area E1. Since the light shielding layer 6 is provided in a frame shape, the design of the input device X1 can be improved. Examples of the constituent material of the light shielding layer 6 include a resin material containing a coloring material. Examples of the resin material include acrylic resins, epoxy resins, and silicone resins. As the coloring material, for example, carbon, titanium, or chromium and the like. Examples of the method for forming the light shielding layer 6 include a screen printing method, a sputtering method, a CVD (Chemical Vapor Deposition) method, and a vapor deposition method.

  Here, the base | substrate 2 and the light shielding layer 6 become one Embodiment of the light-shielding apparatus based on this invention.

  The insulating layer 7 has a role of insulating the light shielding layer 6 and the detection wiring 8. The insulating layer 7 also has a role of protecting the light shielding layer 6. The role of protecting the light shielding layer 6 includes, for example, a role of protecting the light shielding layer 6 from corrosion due to moisture absorption, or a role of reducing the possibility that the material of the light shielding layer 6 is altered. The insulating layer 7 is located on the light shielding layer 6. In the present embodiment, the insulating layer 7 covers the light shielding layer 6. Examples of the constituent material of the insulating layer 7 include an acrylic resin, a silicone resin, a rubber resin, a urethane resin, or an inorganic compound containing silicon. Examples of the method for forming the insulating layer 7 include a transfer printing method, a spin coating method, and a slit coating method.

  The detection wiring 8 has a role of detecting a change in capacitance generated between the first detection electrode 3a and the second detection electrode 4a and the finger F1. One end of the detection wiring 8 is electrically connected to the first detection electrode 3a and the second detection electrode 4a, and the other end is located in the external conduction region G1. The external conduction region G1 is a region electrically connected to an external substrate such as a flexible substrate.

  In the present embodiment, a plurality of detection wirings 8 are provided, and the plurality of detection wirings 8 are provided on the light shielding layer 6 via the insulating layer 7. That is, the detection wiring 8 is provided on the insulating layer 7 so as to overlap the light shielding layer 6 in plan view. For this reason, the light shielding layer 6 can reduce the possibility that the detection wiring 8 will be visually recognized by the user. Further, since the detection wiring 8 is provided on the light shielding layer 6 via the insulating layer 7, the detection wiring 8 is provided in a region other than the region of the second main surface 2b of the base 2 on which the light shielding layer 6 is provided. Compared with the case where is provided, the input device X1 can be downsized in the horizontal direction (X direction and Y direction).

  The detection wiring 8 is made of, for example, a metal thin film so as to be hard and have high shape stability. Examples of the metal thin film include an aluminum film, an aluminum alloy film, a laminated film of a chromium film and an aluminum film, a laminated film of a chromium film and an aluminum alloy film, a silver film, a silver alloy film, or a gold alloy film. . Examples of the method for forming the metal thin film include a sputtering method, a vapor deposition method, and a chemical vapor deposition method.

  In the above description, the example in which the detection wiring 8 is provided on the light shielding layer 6 via the insulating layer 7 has been described. However, the present invention is not limited to this. That is, the detection wiring 8 may be provided directly on the light shielding layer 6 without providing the insulating layer 7. In this case, the step of providing the insulating layer 7 can be omitted in the manufacturing process of the input device X1, which is preferable. However, when carbon is contained as a constituent material of the light shielding layer 6, there is a possibility that electrical conduction may occur between the adjacent detection wirings 8 even in a small amount. If there is a small amount of conduction between the adjacent detection wirings 8, the detection sensitivity of the input device X1 decreases. Further, since the adhesion of the detection wiring 8 to the light shielding layer 6 is weak, the detection wiring 8 may be peeled off from the light shielding layer 6. Furthermore, since the light shielding layer 6 may contain a component for corroding the detection wiring 8, the detection wiring 8 may be corroded by the component. For this reason, it is preferable that the detection wiring 8 is provided on the light shielding layer 6 via the insulating layer 7 as in the present embodiment.

  A first protective layer 9 is provided on the second main surface 2b of the base 2 corresponding to the input area E1 and the non-input area E2.

  The first protective layer 9 serves to protect the first detection electrode 3a, the first connection electrode 3b, the second detection electrode 4a, the second connection electrode 4b, the insulator 5, and the detection wiring 8. The role of protecting the first detection electrode 3a, the first connection electrode 3b, the second detection electrode 4a, the second connection electrode 4b, the insulator 5, and the detection wiring 8 is, for example, these members 3a, 3b, 4a. , 4b, 5 and 8 can be protected from corrosion due to moisture absorption, or the role of these members 3a, 3b, 4a, 4b, 5 and 8 can be reduced.

  The first protective layer 9 has a first base portion 9a and a first adhesive layer 9b. The first base portion 9a is provided on the second main surface 2b of the base 2 corresponding to the input area E1 and the non-input area E2 via the first adhesive layer 9b. Specifically, in the input region E1, the first base portion 9a includes the first detection electrode 3a, the first connection electrode 3b, the second detection electrode 4a, the second connection electrode 4b, and the first adhesive layer 9b. The insulator 5 is covered. In the non-input area E2, the first base portion 9a covers the detection wiring 8 via the first adhesive layer 9b. The first protective layer 9 has an opening corresponding to the external conduction region G1. Examples of the constituent material of the first base portion 9a include glass or plastic. Moreover, as a constituent material of the 1st contact bonding layer 9b, an acrylic adhesive material, a silicone type adhesive material, a rubber-type adhesive material, or a urethane type adhesive material is mentioned, for example.

  Here, the light shielding layer 6 is provided apart from the end portion 21 c on the second main surface 2 b side in the end surface 2 c of the base 2. Since the light shielding layer 6 is provided apart from the end portion 21c of the end surface 2c of the base body 2, the possibility that the light shielding layer 6 is peeled off from the second main surface 2b of the base body 2 can be reduced.

  If the light shielding layer is provided up to the end of the end surface of the substrate, the light shielding layer may be peeled off from the second main surface of the substrate starting from the light shielding layer provided at the end of the end. there were. Specifically, when the base is repeatedly pressed by the user, stress is applied to the light shielding layer provided up to the end of the end surface of the base, and the light shielding layer provided just before the end is used as a starting point. There is a possibility that the light shielding layer may be peeled off from the second main surface of the substrate. Further, for example, in the manufacturing process of the input device, when the end surface of the base is physically or chemically polished, the light shielding layer may be peeled off from the second main surface of the base together with the polishing.

  On the other hand, in the input device X1, since the light shielding layer 6 is provided apart from the end portion 21c of the end surface 2c of the base body 2, the possibility that the above-described problem occurs can be reduced. For this reason, in the input device X1, the possibility that the light shielding layer 6 is peeled off from the second main surface 2b of the base 2 can be reduced.

  In addition, if the light shielding layer is provided up to the end of the end face of the base body, or a case that constitutes the display device on the end face of the base body in the assembly process of the display device such as when the input device is attached to the liquid crystal panel Etc. may come into contact. When the end face of the substrate and the housing come into contact, static electricity is generated between the light shielding layer provided immediately before the end of the substrate and the housing, and the generated static electricity enters the light shielding layer, and the detection wiring is connected to the housing. May be affected by static electricity. If the detection wiring is affected by static electricity, the detection sensitivity of the input device may decrease.

On the other hand, in the input device X1, since the light shielding layer 6 is provided apart from the end portion 21c of the end surface 2c of the base 2, for example, in the assembly process of the display device Y1 (see FIG. 6), the base 2 Since the possibility of contact between the light shielding layer 6 and the housing 104 or the like can be reduced even if the housing 104 or the like comes into contact with the end surface 2c, static electricity is generated between the light shielding layer 6 and the housing 104 or the like. The possibility of occurring can be reduced. For this reason, the possibility of static electricity entering the light shielding layer 6 can be reduced. Therefore, it is possible to detect the sensitivity of the input device X1 is to reduce the possibility of reduction.

  In the present embodiment, since the base body 2 has four end faces 2c, the light shielding layer 6 provided in a frame shape is provided apart from the end portions 21c of the four end faces 2c of the base body 2. Yes. Since the light shielding layer 6 is provided apart from the end portions 21c of the four end surfaces 2c of the base body 2, for example, in the manufacturing process of the input device X1, the four end surfaces 21c of the base body 2 are polished physically or chemically. Even in this case, the possibility that the light shielding layer 6 is peeled off from the second main surface 2b of the base 2 can be reduced. In the present embodiment, the light shielding layer 6 is provided along the end portion 21 c of the end surface 2 c of the base 2. Since the light shielding layer 6 is provided along the end portion 21c of the end surface 2c of the base 2, the design of the input device X1 can be improved.

  The light shielding layer 6 is preferably provided at a distance of 0.1 to 0.5 mm from the end portion 21 c of the end surface 2 c of the base 2. That is, L1 shown in FIG. 5 is preferably in the range of 0.1 to 0.5 mm. If L1 is smaller than 0.1 mm, the light shielding layer 6 may be peeled off from the second main surface 2b of the base 2. On the other hand, if L1 is larger than 0.5 mm, the light shielding layer 6 is displaced from the end surface 2c of the base 2 to the extent that the user can visually recognize, so that the design of the input device X1 is degraded. For this reason, it is preferable that the light shielding layer 6 is provided 0.1 to 0.5 mm apart from the end portion 21 c of the end surface 2 c of the base 2.

  Further, in the input device X1, since the light shielding layer 6 is provided on the second main surface 2b of the base 2, the input device X1 is compared with the case where the light shielding layer is provided on the first main surface of the base. The manufacturing process can be simplified. That is, when the light shielding layer is provided on the first main surface of the base, in the manufacturing process of the input device, the first detection electrode, the first connection electrode, the second detection electrode, After forming the second connection electrode and the insulator, it is necessary to form a light shielding layer on the first main surface of the base with the base facing the opposite side. That is, when the light shielding layer is provided on the first main surface of the substrate, a step of directing the substrate to the opposite side is required.

  On the other hand, in the input device X1, the light shielding layer 6 is provided on the second main surface 2b of the base 2. Therefore, the first detection electrode 3a, the first connection electrode 3b, the second detection electrode 4a, the second connection electrode 4b, and the insulation are formed on the second main surface 2b of the base 2 without directing the base 2 to the opposite side. While forming the body 5, the light shielding layer 6 can also be formed. For this reason, in the input device X1, the manufacturing process can be simplified.

  Also, as shown in FIG. 5, when the height of the insulating layer 7 from the second main surface 2b of the base 2 is H, the detection wiring located closest to the input region E1 among the plurality of detection wirings 8 8a is preferably provided at a distance of H or more from the end 6a of the light shielding layer 6 located on the input area E1 side. In the present embodiment, the detection wiring 8a is provided on the insulating layer 7 at a predetermined distance L2 (where L2 is larger than H) from the end 6a of the light shielding layer 6. In this way, it is possible to reduce the possibility that the detection wiring 8a is visually recognized by the user who visually recognizes the input area E1.

  In addition, it is preferable that the thickness of the light shielding layer 6 is 1-3 micrometers. Moreover, it is preferable that the thickness of the insulating film 7 is 1-3 micrometers. Further, the thickness of the detection wiring 8 is preferably 0.1 to 0.3 μm.

  A second protective layer 10 is provided on the first main surface 2a of the base 2 corresponding to the input area E1 and the non-input area E2.

  The second protective layer 10 has a role of protecting the first main surface 2a of the base 2 from being damaged by the contact of the user's finger F1. The second protective layer 10 has a second base portion 10a and a second adhesive layer 10b. The second base portion 10a is provided on the first main surface 2a of the base 2 corresponding to the input area E1 and the non-input area E2 via the second adhesive layer 10b. Examples of the constituent material of the second base portion 10a include the same materials as those of the first base portion 9a. Examples of the constituent material of the second adhesive layer 10b include the same materials as those of the first adhesive layer 10a.

    Next, the detection principle of the input device X1 will be described.

  A position detection driver (not shown) is electrically connected to the detection wiring 8 located in the external conduction region G1. The position detection driver includes a power supply unit. The power supply unit of the position detection driver supplies a voltage to the first detection electrode 3a and the second detection electrode 4a. Here, when the finger F1, which is a conductor, approaches the first main surface 2a of the base 2 corresponding to the input region E1 via the second protective layer 10, the finger F1, the first detection electrode 3a, and the second detection electrode Capacitance is generated between 4a and 4a. The position detection driver constantly detects the capacitance generated in the first detection electrode 3a and the second detection electrode 4a. The position detection driver detects an input position where the user has performed an input operation based on a combination of the first detection electrode 3a and the second detection electrode 4a that have detected a capacitance of a predetermined value or more. In this way, the input device X1 can detect the input position.

  As described above, in the input device X1, the possibility that the light shielding layer 6 is peeled off from the second major surface 2b of the base 2 can be reduced.

  Next, a display device Y1 including the input device X1 will be described with reference to FIG.

  As shown in FIG. 6, the display device Y1 according to the present embodiment includes an input device X1, a liquid crystal panel 101, a backlight 102, a circuit board 103, and a first housing 104.

  The liquid crystal panel 101 is a display panel using a liquid crystal composition for display. The liquid crystal panel 101 is disposed to face the input device X1 through the space S1. Note that a display panel such as a plasma panel, an organic EL panel, or electronic paper may be used instead of the liquid crystal panel 101. Here, the organic EL panel is a display panel using a substance that emits light when a voltage is applied. Specifically, the organic EL panel is displayed by depositing a light emitter using an organic substance such as diamine on a substrate and applying a DC voltage of 5 to 10V. In the case where an organic EL panel is used instead of the liquid crystal panel 101, the backlight 102 is not necessary.

  The backlight 102 includes a light source 102a and a light guide plate 102b. The light source 102a has a role of emitting light toward the light guide plate 102b. The light source 102 is composed of, for example, an LED (Light Emitting Diode). Instead of the LED, a cold cathode fluorescent lamp, a halogen lamp, a xenon lamp, or an EL (Electro-Luminescence) may be used. The light guide plate 102b has a role for guiding light from the light source 102a substantially uniformly over the entire lower surface of the liquid crystal panel 101.

  The circuit board 103 is a plate-like or film-like board that constitutes an electronic circuit by mounting components such as an IC (Integrated Circuit), a resistor, and a capacitor on the surface and connecting the components by wiring. The circuit board 103 is disposed on the back side of the backlight 102. The circuit board 103 is provided with a connector. A flexible board connected to the external conduction region G1 is inserted into this connector.

The first housing 104 has a role of accommodating the liquid crystal panel 101, the backlight 102, and the circuit board 103. Examples of the constituent material of the first housing 104 include a resin such as polycarbonate or a metal such as stainless steel or aluminum.

  The first housing 104 includes a support member 104a. The support member 104a has a role of supporting the input device X1. Specifically, the support member 104a supports the non-input area E2 so as to surround the input area E1. The input device X1 and the support member 104a are bonded by an adhesive member such as a double-sided tape.

  Thus, the input device X1 can input various types of information by performing an input operation on the input area E1 while seeing through the liquid crystal panel 101. When inputting various types of information, the input device X1 may be provided with a function of presenting various tactile sensations such as a feeling of pressing, a feeling of tracing, and a feeling of touch to the user who has input the information. In this case, the substrate 2 in the input device X1 includes one or more piezoelectric elements, and when a predetermined input operation or a predetermined pressing load is detected, the piezoelectric element is vibrated at a predetermined frequency. Can do.

  Since the display device Y1 includes the input device X1, it is possible to reduce the possibility that the light shielding layer 6 is peeled off from the second main surface 2b of the base 2.

  Next, the portable terminal P1 provided with the display device Y1 will be described with reference to FIG.

  As shown in FIG. 7, the mobile terminal P1 according to the present embodiment is an electronic device such as a mobile phone, a smartphone, or a PDA (Personal Digital Assistant). The portable terminal P1 includes a display device Y1, an audio input unit 201, an audio output unit 202, a key input unit 203, and a second housing 204.

  The voice input unit 201 is composed of, for example, a microphone or the like, and inputs a user's voice or the like. The audio output unit 202 includes a speaker or the like, and outputs audio from the other party. The key input unit 203 is configured by, for example, a mechanical key. The key input unit 203 may be an operation key displayed on the display screen. The second housing 204 has a role of accommodating the display device Y1, the audio input unit 201, the audio output unit 202, and the key input unit 203.

  In addition, the mobile terminal P1 may include a short-distance wireless communication unit such as a digital camera function unit, a one-segment broadcasting tuner, an infrared communication function unit, and various interfaces, depending on the required functions. The detailed illustration and description thereof will be omitted.

  Since the portable terminal P1 includes the display device Y1, it is possible to reduce the possibility that the light shielding layer 6 is peeled off from the second main surface 2b of the base 2.

  In addition, although the example which provided the audio | voice input part 201 in the portable terminal P1 was demonstrated above, it is not restricted to this. That is, the voice input unit 201 may not be provided in the mobile terminal P1.

  Moreover, although the portable terminal P1 demonstrated the example provided with the 2nd housing | casing 204 which accommodates the display apparatus Y1, the audio | voice input part 201, the audio | voice output part 202, and the key input part 203 above, it is not restricted to this. Absent. Instead of providing the second casing 204 separately and independently, the first casing 104 in the display device Y1 may be a casing of the portable terminal P1.

Furthermore, the display device Y1 is not limited to the portable terminal P1, but includes various types of devices such as an industrial programmable display, an on-vehicle display, an electronic notebook, a personal computer, a copying machine, a game terminal, a television, and a digital camera. The electronic device may be provided.

  The above-described embodiment shows a specific example of the embodiment of the present invention, and various modifications can be made. Hereinafter, some main modifications will be described.

[Modification 1]
FIG. 8 is a plan view illustrating a schematic configuration of the input device X2 according to the first modification. 9 is a cross-sectional view taken along the cutting line IV-IV shown in FIG. 8 and 9, the same reference numerals are given to configurations having the same functions as those in FIGS. 2 and 5, and detailed descriptions thereof are omitted.

  As shown in FIGS. 8 and 9, the input device X <b> 2 includes a base body 20 instead of the base body 2 described in the above embodiment. The base 20 has a first main surface 20a, a second main surface 20b located on the opposite side of the first main surface 20a, and an end surface 20c adjacent to the first main surface 20a and the second main surface 20b. . In the input device X2, the outer surface of the end portion 201c of the end surface 20c of the base body 20 is a curved surface. Since the outer surface of the end portion 201c of the end surface 20c has a curved surface, the possibility that the end portion 201c is chipped or cracked can be reduced.

  As described above, the input device X <b> 2 can reduce the possibility that the light shielding layer 6 is peeled off from the second main surface 20 b of the base body 20, and also reduces the possibility that a crack develops inside the base body 20. be able to.

[Modification 2]
FIG. 10 is a plan view illustrating a schematic configuration of the input device X3 according to the second modification. 11 is a cross-sectional view taken along the cutting line VV shown in FIG. 10 and 11, the same reference numerals are given to configurations having the same functions as those in FIGS. 2 and 5, and detailed descriptions thereof are omitted.

  As shown in FIGS. 10 and 11, the input device X3 includes a light shielding layer 60 instead of the light shielding layer 6 described in the above embodiment. The light shielding layer 60 has conductivity and is set to a reference potential. For this reason, noise generated outside the input device X3 can be shielded by the light shielding layer 60. Since the noise generated outside can be shielded by the light shielding layer 60, the influence of noise from the outside on the first detection electrode 3a and the second detection electrode 4a can be reduced. For this reason, the possibility that the detection accuracy or the detection sensitivity of the input device X3 is reduced can be reduced.

  In order to effectively shield noise generated outside by the light shielding layer 60, the light shielding layer 60 is preferably set to the ground potential.

  As described above, the input device X3 can reduce the possibility that the light shielding layer 60 will be peeled off from the second main surface 2b of the base body 2, and reduce the possibility that the detection accuracy or the detection sensitivity is lowered. Can do.

[Modification 3]
Moreover, although the example of the display device Y1 provided with the input device X1 has been described above, the input device X2 or the input device X3 may be employed instead of the input device X1. Moreover, you may employ | adopt the portable terminal provided with the display apparatus which employ | adopted input device X2 or input device X3. Furthermore, modification embodiment and described above described above may be appropriately combined.

X1~X3 input device Y1 display device P1 portable terminal (electronic equipment)
2,20 Base 3a First detection electrode (detection electrode)
4a Second detection electrode (detection electrode)
6,60 shielding layer 7 insulating layer 8 detection wire 101 liquid crystal panel (display panel)
104 First housing (housing)

Claims (13)

Major surface, and a substrate having an end surface adjacent to the main surface and,
And a light shielding layer provided on the main surface of the substrate,
The light-shielding device, wherein the light-shielding layer is provided apart from an end portion on the main surface side of the end surface of the base. The base body has four end faces,
The light shielding device according to claim 1, wherein the light shielding layer is provided in a frame shape and is provided apart from the end portions of the four end surfaces of the base body.   The light shielding device according to claim 1, wherein the light shielding layer is provided along the end portion of the end surface of the base body.   The light shielding device according to any one of claims 1 to 3, wherein an outer surface of the end portion of the end surface of the base body has a curved surface.   The light shielding device according to any one of claims 1 to 4, wherein the light shielding layer is provided at a distance of 0.1 to 0.5 mm from the end portion of the end surface of the base body. An input device having an input area and a non-input area,
A light shielding device according to any one of claims 1 to 5,
A detection electrode provided on the main surface of the substrate in the light-shielding device, which is located corresponding to the input region;
A detection wiring that is located corresponding to the non-input area, is provided on the main surface of the base in the light-shielding device, and is electrically connected to the detection electrode;
The light-shielding layer is located so as to correspond to the non-input area, the input device.   The input device according to claim 6, wherein the detection wiring is provided on the light shielding layer. Further comprising an insulating layer on the light shielding layer,
The input device according to claim 7, wherein the detection wiring is provided on the light shielding layer via the insulating layer. A plurality of the detection wirings are provided,
When the height from the main surface of the base of the insulating layer and H,
9. The detection wiring located closest to the input region among the plurality of detection wirings is provided at least H away from an end of the light shielding layer located on the input region side. The input device described.   The input device according to claim 8, wherein the light shielding layer has conductivity. An input device according to any one of claims 6-10,
A display panel disposed opposite the input device;
Display device provided with a housing in which the display panel is accommodated.   The display device according to claim 11, wherein the display panel is a liquid crystal panel or an organic EL panel.   An electronic apparatus comprising the display device according to claim 11.