Display Device with Touch Panel

• US 20080303798A1
• Filed: 06/06/2008
• Published: 12/11/2008
• Est. Priority Date: 06/06/2007
• Status: Abandoned Application

• Current Assignee: Panasonic Liquid Crystal Display Company Limited (Panasonic Holdings Corporation)
• Original Assignee: Panasonic Liquid Crystal Display Company Limited (Panasonic Holdings Corporation)
• Inventors: Nakamura, Norihiro, Ookawara, Takeshi, Matsudate, Noriharu
• Application Number:
  US12/134,286
• Publication Number:
  US 20080303798A1
• Time in Patent Office: Days
• US Class Current: 345/173
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display

Abstract

Suggested is a display device with a touch panel which adopts a novel detection structure. The display device with the touch panel includes: a touch panel including a pair of substrates provided with electrodes on opposing surfaces thereof, and a spacer for retaining a gap between the pair of substrates; and a display panel located on a back surface of the touch panel, in which one of the pair of substrates is provided with a metal wiring formed on a resin.

Claims

1. A display device with a touch panel, comprising:

a touch panel including;

a pair of substrates provided with electrodes on opposing surfaces thereof; and

a spacer for retaining a gap between the pair of substrates; and

a display panel located on a back surface of the touch panel,

wherein one of the pair of substrates is provided with a metal wiring formed on a resin.

2. A display device with a touch panel, according to claim 1, wherein another one of the pair of substrates is provided with a metal wiring formed on a resin.

3. A display device with a touch panel, according to claim 1, wherein the one of the pair of substrates is provided with a polarizing plate on an outside thereof.

4. A display device with a touch panel, according to claim 1, wherein a maximum width of a plan shape of the spacer viewed from a substrate thickness direction is made larger than a pitch of the metal wiring.

5. A display device with a touch panel, according to claim 1, wherein a width of the metal wiring is set to less than 50% of a wiring pitch of the metal wiring.

6. A display device with a touch panel, according to claim 4, wherein the pitch of the metal wiring is set to 3.15 mm or less when one of a vertical pitch and a horizontal pitch between pixels of the display panel is set to 100 μ

m or less.

7. A display device with a touch panel, according to claim 4, wherein the pitch of the metal wiring is set to 2.63 mm or less when one of a vertical pitch and a horizontal pitch between pixels of the display panel is set to more than 100 μ

m and equal to or less than 120 μ

m.

8. A display device with a touch panel, according to claim 4, wherein the pitch of the metal wiring is set to 2.23 mm or less when one of a vertical pitch and a horizontal pitch between pixels of the display panel is set to more than 120 μ

m and equal to or less than 140 μ

m.

9. A display device with a touch panel, according to claim 4, wherein the pitch of the metal wiring is set to 1.81 mm or less when one of a vertical pitch and a horizontal pitch between pixels of the display panel is set to more than 140 μ

m and equal to or less than 170 μ

m.

10. A display device with a touch panel, according to claim 5, wherein the wiring pitch of the metal wiring is set to 3.15 mm or less when one of a vertical pitch and a horizontal pitch between pixels of the display panel is set to 100 μ

m or less.

11. A display device with a touch panel, according to claim 5, wherein the wiring pitch of the metal wiring is set to 2.63 mm or less when one of a vertical pitch and a horizontal pitch between pixels of the display panel is set to more than 100 μ

m and equal to or less than 120 μ

m.

12. A display device with a touch panel, according to claim 5, wherein the wiring pitch of the metal wiring is set to 2.23 mm or less when one of a vertical pitch and a horizontal pitch between pixels of the display panel is set to more than 120 μ

m and equal to or less than 140 μ

m.

13. A display device with a touch panel, according to claim 5, wherein the wiring pitch of the metal wiring is set to 1.81 mm or less when one of a vertical pitch and a horizontal pitch between pixels of the display panel is set to more than 140 μ

m and equal to or less than 170 μ

m.

14. A display device with a touch panel, according to claim 5, wherein the width of the metal wiring is smaller than a width of an interval between the metal wirings.

15. A display device with a touch panel, according to claim 5, wherein an area occupied by the metal wiring within a detection area is smaller than an area between the metal wirings.