ELECTRONIC APPARATUS WITH A CAPACITIVE TOUCH SENSOR

• US 20100097344A1
• Filed: 05/01/2009
• Published: 04/22/2010
• Est. Priority Date: 10/16/2008
• Status: Abandoned Application

• Current Assignee: InnoLux Corporation
• Original Assignee: TPO Displays Corporation (InnoLux Corporation)
• Inventors: VERWEG, FRANS
• Application Number:
  US12/434,341
• Publication Number:
  US 20100097344A1
• Time in Patent Office: Days
• US Class Current: 345/174
• 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 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

A capacitive touch sensor for use with a display device is described. The capacitive touch sensor includes a first sensor electrode layer including a first electrode, a second sensor electrode layer including a second electrode, and a sensor dielectric layer including a polarizer, the sensor dielectric layer arranged in between the first sensor electrode layer and the second sensor electrode layer. The first electrode can have a plurality of first sensor elements. The second sensor electrode layer can act as a shielding electrode. An apparatus including a display module including a capacitive touch sensor and a display device is described. The first sensor electrode layer is applied on a transparent window plate in the cover of the apparatus.

Claims

1. An electronic apparatus, comprising a display device, an apparatus controller for operating said display device, and a capacitive touch sensor, wherein said capacitive touch sensor comprises:

a first sensor electrode layer comprising a first electrode;

a second sensor electrode layer comprising a second electrode; and

a sensor dielectric layer, arranged in between the first sensor electrode layer and the second sensor electrode layer.

2. An electronic apparatus according to claim 1, wherein said sensor dielectric layer comprises an optically clear adhesive.

3. An electronic apparatus according to claim 1, wherein said sensor dielectric layer comprises a polarizer.

4. An electronic apparatus according to claim 3, wherein said polarizer is circular polarizer.

5. An electronic apparatus according to claim 1, further comprising a transparent window plate to cover said capacitive touch sensor;

wherein the first sensor electrode layer is arranged between the transparent window plate and the sensor dielectric layer.

6. An electronic apparatus according to claim 1, wherein said second sensor electrode layer faces a front surface of said display device, and said first sensor electrode layer and said sensor dielectric layer are in direct contact.

7. An electronic apparatus according to claim 1, wherein said second sensor electrode layer faces a front surface of said display device, and said second sensor electrode layer and said sensor dielectric layer are in direct contact.

8. An electronic apparatus according to claim 1, wherein said electronic apparatus is a digital still-picture camera, a car navigation system, a mobile DVD-player, a gaming device, or a hand-held consumer appliance, a television, a computer monitor, a large-screen consumer electronics device, or a professional appliance.

9. An electronic apparatus, comprising a display device, an apparatus controller for operating said display device, and a capacitive touch sensor allowing a user to view images shown on said display device through said capacitive touch sensor, said capacitive touch sensor comprising:

a first sensor electrode layer comprising a first electrode;

a second sensor electrode layer comprising a second electrode, and

a polarizer layer, arranged in between the said sensor electrode layer and said second sensor electrode layer.

10. An electronic apparatus according to claim 9, wherein said polarizer layer is circularly polarized.

11. An electronic apparatus according to claim 9, wherein said capacitive touch sensor further comprises:

an optically clear adhesive arranged in between said polarizer layer and said second sensor electrode layer.

12. An electronic apparatus according to claim 9, further comprising a transparent window plate to cover said capacitive touch sensor, wherein the first sensor electrode layer is arranged between the transparent window plate and the sensor dielectric layer.

13. An electronic apparatus according to claim 9, wherein said second sensor electrode layer faces a front surface of said display device, and said first sensor electrode layer and said sensor dielectric layer are in direct contact.

14. An electronic apparatus according to claim 9, wherein said second sensor electrode layer faces a front surface of said display device, and said second sensor electrode layer and said sensor dielectric layer are in direct contact.

15. An electronic apparatus according to claim 9, wherein said electronic apparatus is a digital still-picture camera, a car navigation system, a mobile DVD-player, a gaming device, or a hand-held consumer appliance, a television, a computer monitor, a large-screen consumer electronics device, or a professional appliance.

16. An electronic apparatus, comprising a display device, an apparatus controller for operating said display device, and a capacitive touch sensor allowing a user to view images shown on said display device through said capacitive touch sensor, said capacitive touch sensor comprising:

a first sensor electrode layer comprising a first electrode;

a second sensor electrode layer comprising a second electrode, and

an optically clear adhesive layer, arranged in between the first sensor electrode layer and the second sensor electrode layer.

17. An electronic apparatus according to claim 16, wherein said polarizer is circular polarizer.

18. An electronic apparatus according to claim 16, wherein said second sensor electrode layer faces a front surface of said display device, and said first sensor electrode layer and said sensor dielectric layer are in direct contact.

19. An electronic apparatus according to claim 16, wherein said second sensor electrode layer faces a front surface of said display device, and said second sensor electrode layer and said sensor dielectric layer are in direct contact.

20. An electronic apparatus according to claim 16, wherein said electronic apparatus is a digital still-picture camera, a car navigation system, a mobile DVD-player, a gaming device, or a hand-held consumer appliance, a television, a computer monitor, a large-screen consumer electronics device, or a professional appliance.