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

• US 20090096763A1
• 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:
  US12/193,809
• Publication Number:
  US 20090096763A1
• Time in Patent Office: Days
• US Class Current: 345/174
• 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

A touch panel includes: first and second substrates each having a first surface and a second surface, the second substrate being arranged on an input operation side of the first substrate; a first electrode that is formed on the first surface of the first substrate; a second electrode that is formed on the first surface of the second substrate; a resistive film type input area in which the first electrode of the first substrate and the second electrode of the second substrate face each other; and a capacitance type input area in which third electrodes are formed on at least one of the first substrate and the second substrate. The resistive film type input area and the capacitance type input area are separated from each other in plan view.

Claims

1. A touch panel comprising:

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;

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

a resistive film type input area in which the first electrode of the first substrate and the second electrode of the second substrate face each other; and

a capacitance type input area in which third electrodes are formed on at least one of the first substrate and the second substrate,

wherein the resistive film type input area and the capacitance type input area are separated from each other in plan view.

2. The touch panel according to claim 1,

wherein the third electrodes are formed on the first surface of the first substrate or the first surface of the second substrate.

3. The touch panel according to claim 2,

wherein a wiring member that outputs signals from the resistive film type input area and the capacitance type input area to the outside is connected to one of the first surface of the first substrate and the first surface of the second substrate on which the third electrodes are formed.

4. The touch panel according to claim 2,

wherein a wiring member that outputs signals from the resistive film type input area and the capacitance type input area to the outside is connected to one of the first surface of the first substrate and the first surface of the second substrate on which the third electrodes are not formed, and

an inter-substrate conductive material that outputs signals from the capacitance type input area to the outside is provided between the first surface of the first substrate and the first surface of the second substrate.

5. The touch panel according to claim 3,

wherein the wiring member is connected to the first surface of the first substrate.

6. A display device with an input function comprising:

the touch panel according to claim 1; and

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

7. The display device with an input function according to claim 6,

wherein at least one of the resistive film type input area and the capacitance type input area is a transmissive input area, and

the image generating device includes an image display area that overlaps the transmissive input area.

8. The display device with an input function according to claim 6,

wherein both the resistive film type input area and the capacitance type input area are transmissive input areas, and

the image generating device includes an image display area that overlaps both the transmissive input areas.

9. The display device with an input function according to claim 6,

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.

10. An electronic apparatus comprising the display device with an input function according to claim 6.