INPUT DEVICE, DISPLAY DEVICE WITH INPUT FUNCTION, AND ELECTRONIC APPARATUS

• US 20090096762A1
• Filed: 08/19/2008
• Published: 04/16/2009
• Est. Priority Date: 10/16/2007
• Status: Abandoned Application

• Current Assignee: Japan Display West Incorporated (Japan Display Incorporated)
• Original Assignee: Epson Imaging Devices Corporation (Seiko Group)
• Inventors: Hinata, Shoji
• Application Number:
  US12/193,795
• Publication Number:
  US 20090096762A1
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes
• 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 device includes: a resistive film type input unit; and a non-contact type input unit that overlaps at least a portion of the resistive film type input unit. The resistive film type input unit includes: first and second substrates each having a first surface and a second surface; a first electrode that is formed on the first surface of the first substrate; and a second electrode that is formed on the first surface of the second substrate. The second substrate is provided on an input operation side of the first substrate, and the first electrode of the first substrate faces the second electrode of the second substrate. The resistive film type input unit is in a standby state that does not perform input detection until an input to the non-contact type input unit is detected. When the input to the non-contact type input unit is detected, the resistive film type input unit is turned on to perform input detection.

Claims

1. An input device comprising:

a resistive film type input unit; and

a non-contact type input unit that overlaps at least a portion of the resistive film type input unit,

wherein the resistive film type input unit includes;

a first substrate having a first surface and a second surface;

a second substrate having a first surface and a second surface;

a first electrode that is formed on the first surface of the first substrate; and

a second electrode that is formed on the first surface of the second substrate,

the first electrode of the first substrate faces the second electrode of the second substrate,

the resistive film type input unit is in a standby state that does not perform input detection until an input to the non-contact type input unit is detected, and

when the input to the non-contact type input unit is detected, the resistive film type input unit is turned on to perform input detection.

3. The input device according to claim 1,

wherein the first electrode and the second electrode are maintained at the ground potential in the standby state.

8. The input device according to claim 1,

wherein the non-contact type input unit is an optical input unit including light emitting portions and light receiving portions.

2. An input device comprising:

a resistive film type input unit; and

a capacitance type input unit,

wherein the resistive film type input unit includes;

a first substrate having a first surface and a second surface;

a second substrate having a first surface and a second surface;

a first electrode that is formed on the first surface of the first substrate; and

a second electrode that is formed on the first surface of the second substrate,

the second substrate is provided on an input operation side of the first substrate,

the first electrode of the first substrate faces the second electrode of the second substrate,

the capacitance type input unit includes third electrodes that are provided on the second surface of the second substrate,

the resistive film type input unit is in a standby state that does not perform input detection until an input to the capacitance type input unit is detected, and

when the input to the capacitance type input unit is detected, the resistive film type input unit is turned on to perform input detection.

4. The input device according to claim 2,

wherein the first electrode and the second electrode are maintained at the ground potential in the standby state.

5. The input device according to claim 2,

wherein the third electrodes are formed on a base that is composed of a sheet or a substrate different from the second substrate.

6. The input device according to claim 5,

wherein the base is provided such that the third electrodes face the second surface of the second substrate.

7. The input device according to claim 2,

wherein an input region of the capacitance type input unit and an input region of the resistive film type input unit have different sizes in plan view.

9. A display device with an input function comprising:

the input device according to claim 2; and

an image generating device that is provided on one surface of the first substrate of the input device that is opposite to the second substrate.

10. The display device with an input function according to claim 9,

wherein the image generating device includes a pair of substrates and an electro-optical material that is interposed between the pair of substrates, and

the first substrate also serves as one of the pair of substrates.

11. An electronic apparatus comprising the display device with an input function according to claim 9.