Systems for displaying images

Patent metadata

Field	Value
Publication number	US-9367194-B2
Application number	US-201514691529-A
Country	US
Kind code	B2
Filing date	Apr 20, 2015
Priority date	Jul 21, 2010
Publication date	Jun 14, 2016
Grant date	Jun 14, 2016

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.

First claim

What is claimed is:

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 first sense electrode in each series of first sense electrodes are electrically connected together along a first direction and each second sense electrode in each series of second sense electrodes are electrically connected together 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 first sense electrode of one series of the first sense electrodes and overlapping but without direct electrical connection with one of the first sense electrode of another series of the 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 signal line passes under one first sense electrode in each series of first sense electrodes.

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

12. 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.

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

14. The system of claim 13 , 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.

15. The system of claim 13 , 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.

16. The system of claim 13 , 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.

17. 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.

18. The system of claim 17 , wherein the system comprises an electronic device comprising the touch panel display.

19. The system of claim 18 , 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.

20. 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 first sense electrode in each series of first sense electrodes are electrically connected together along a first direction and each second sense electrode in each series of second sense electrodes are electrically connected together along a second direction by a plurality of connection portions 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 the signal lines and the connection portions alternate in substantially parallel directions in the sensing area.

Assignees

• Innolux Corp

Inventors

• Edwards Martin John

Classifications

• G06F3/044

  by capacitive means · CPC title

• G09G2300/0426

  Layout of electrodes and connections · CPC title

• G09G5/00

  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) · CPC title

• G06F3/047 Primary

  using sets of wires, e.g. crossed wires · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title