SYSTEMS FOR DISPLAYING IMAGES

• US 20120019473A1
• Filed: 07/21/2010
• Published: 01/26/2012
• Est. Priority Date: 07/21/2010
• Status: Abandoned Application

• Current Assignee: InnoLux Corporation
• Original Assignee: Chi Mei Innolux Corporation (InnoLux Corporation)
• Inventors: Edwards, Martin John
• Application Number:
  US12/841,123
• Publication Number:
  US 20120019473A1
• 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 3/0445 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
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires
• CPC Class Codes: G09G 2300/0426 Layout of electrodes and connections
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T

Abstract

A system for displaying images is provided. The system includes a capacitive touch sensor device includes a dielectric layer having a sensing area and covered by a transparent substrate. A plurality of series of first sense electrodes and a plurality of series of second sense electrodes are embedded in a first level of the dielectric layer and within the sensing area. Each series of first sense electrodes extends along a first direction and each series of second sense electrodes extends along a second direction substantially different from the first direction. A plurality of signal lines are embedded in a second level lower than the first level of the dielectric layer and extends along the second direction. Each signal line is correspondingly and electrically connected to one of the plurality of series of first sense electrodes.

Claims

1. A system for displaying images, comprising:

a capacitive touch sensor device, comprising;

a dielectric layer having a sensing area and covered by a transparent substrate;

a plurality of series of first sense electrodes and a plurality of series of second sense electrodes embedded in a first level of the dielectric layer and within the sensing area, wherein each series of first sense electrodes extends along a first direction and each series of second sense electrodes extends along a second direction substantially different from the first direction; and

a plurality of signal lines embedded in a second level lower than the first level of the dielectric layer and extending along the second direction, wherein each signal line is correspondingly and electrically connected to one of the plurality of series of first sense electrodes.

2. The system of claim 1, further comprising a plurality of first connection lines corresponding to the plurality of signal lines and a plurality of second connection lines corresponding to the plurality of series of second sense electrodes, wherein each first connection line extends from the corresponding signal line to the outside of the sensing area, and each second connection line extends from the corresponding series of second sense electrodes to the outside of the sensing area.

3. The system of claim 2, wherein the pluralities of first and second connection lines are located at the same side of the sensing area.

4. The system of claim 2, wherein the pluralities of first and second connection lines are located at opposing sides of the sensing area, respectively.

5. The system of claim 1, further comprising a common electrode layer embedded in a third level lower than the second level of the dielectric layer and corresponding to the sensing area.

6. The system of claim 5, wherein the common electrode layer is formed of a conductive transparent layer.

7. The system of claim 5, wherein the common electrode layer is electrically connected to a ground or a low impedance electrode.

8. The system of claim 1, wherein the plurality of series of first sense electrodes and the plurality of series of second sense electrodes are formed of the same conductive transparent layer.

9. The system of claim 1, wherein the plurality of signal lines is formed of a conductive transparent layer.

10. The system of claim 1, wherein each first sense electrode in each series of first sense electrodes are electrically connected together and each second sense electrode in each series of second sense electrodes are electrically connected together.

11. The system of claim 1, wherein each signal line passes under one first sense electrode in each series of first sense electrodes.

12. The system of claim 1, wherein each series of first sense electrodes are electrically connected to a ground or a low impedance electrode.

13. The system of claim 1, wherein each signal line is correspondingly and electrically connected to one of the plurality of series of first sense electrodes by an interconnect, wherein the interconnects for each signal line and the corresponding series of first sense electrodes are not arranged in a line as viewed from a top-view perspective.

14. The system of claim 1, wherein the plurality of signal lines and the plurality of series of second sense electrodes are alternately arranged.

15. The system of claim 14, wherein the number of the plurality of series of first sense electrodes is one more than that of the plurality of series of second sense electrodes.

16. The system of claim 14, wherein the number of the plurality of series of first sense electrodes is one less than that of the plurality of series of second sense electrodes.

17. The system of claim 14, wherein the number of the plurality of series of first sense electrodes is equal to that of the plurality of series of second sense electrodes.

18. The system as claimed in claim 1, further comprising:

a touch panel display comprising the capacitive touch sensor device; and

an input unit coupled to the touch panel display and operative to provide input signals to the touch panel display, such that the touch panel display displays images.

19. The system of claim 18, wherein the system comprises an electronic device comprising the touch panel display.

20. The system of claim 19, wherein the electronic device is a projector, an electronic book, a laptop computer, a mobile phone, a digital camera, a personal digital assistant, a desktop computer, a television, a car display or a portable DVD player.