INPUT APPARATUS, INPUT DISPLAY APPARATUS, AND ELECTRONIC DEVICE

• US 20100214245A1
• Filed: 02/08/2010
• Published: 08/26/2010
• Est. Priority Date: 02/26/2009
• Status: Abandoned Application

• Current Assignee: Seiko Epson Corporation (Seiko Group)
• Original Assignee: Seiko Epson Corporation (Seiko Group)
• Inventors: HIROTA, Takenori
• Application Number:
  US12/701,889
• Publication Number:
  US 20100214245A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/133616 Front illuminating devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• CPC Class Codes: G06F 3/0447 Position sensing using the local deformation of sensor cells
• CPC Class Codes: G06F 3/045 using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact

Abstract

An input apparatus includes a single light-transmissible substrate, an input unit including a coordinate input surface formed upon one surface of the light-transmissible substrate, and an illumination unit formed upon the other surface of the light-transmissible substrate.

Claims

1. An input apparatus comprising:

a single light-transmissible substrate;

an input unit including a coordinate input surface formed upon one surface of the single light-transmissible substrate; and

an illumination unit formed upon the other surface of the single light-transmissible substrate.

2. The input apparatus according to claim 1,

wherein the illumination unit includes:

a first electrode layer;

a light-emitting layer formed so as to cover the first electrode layer; and

a light-emitting element portion configured of a second electrode layer formed so as to cover the light-emitting layer, and

the light-emitting element portion irradiates light toward the outer side of the single light-transmissible substrate as a result of a predetermined voltage being applied to the first electrode layer and the second electrode layer.

3. The input apparatus according to claim 2,

wherein the first electrode layer is an anode layer;

the second electrode layer is a cathode layer;

the light-emitting layer is an organic light-emitting layer; and

the light-emitting element portion is an organic electroluminescence element configured of the anode layer, the organic light-emitting layer, and the cathode layer.

4. The input apparatus according to claim 1,

wherein the input unit includes:

a third electrode layer; and

a fourth electrode layer formed above the third electrode layer.

7. An electronic device comprising the input apparatus according to claim 1.

9. An electronic device comprising the input apparatus according to claim 2.

10. An electronic device comprising the input apparatus according to claim 3.

11. An electronic device comprising the input apparatus according to claim 4.

5. An input display apparatus comprising:

a liquid-crystal display unit; and

an input apparatus disposed upon the liquid-crystal display unit,

wherein the input apparatus includes;

a single light-transmissible substrate;

an input unit including a coordinate input surface formed upon one surface of the single light-transmissible substrate; and

an illumination unit formed upon the other surface of the single light-transmissible substrate that irradiates light toward the liquid-crystal display unit, and

the liquid-crystal display unit includes;

a reflective display unit that reflects, toward the input apparatus, the light irradiated from the illumination unit.

6. The input display apparatus according to claim 5, further comprising:

a bonding layer for bonding the input apparatus and the single liquid-crystal display unit to each other,

wherein the light-transmissible substrate includes a glass substrate; and

the bonding layer has a refraction index that is approximately the same as the refraction index of the glass substrate.

8. An electronic device comprising the input display apparatus according to claim 5.

12. An electronic device comprising the input display apparatus according to claim 6.