TOUCH-SENSING APPARATUS

• US 20120249446A1
• Filed: 01/16/2012
• Published: 10/04/2012
• Est. Priority Date: 04/01/2011
• Status: Abandoned Application

• Current Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Original Assignee: Novatek Microelectronics Corporation (Novatek Microelectronics Corp Limited)
• Inventors: Chen, Chun-Hung, Hsia, Chih-Peng, Huang, He-Wei, Huang, Chun-Ching, Chang, Chih-Yuan
• Application Number:
  US13/350,825
• Publication Number:
  US 20120249446A1
• Time in Patent Office: Days
• US Class Current: 345/173
• 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 3/0448 Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality

Abstract

A touch-sensing apparatus including a touch panel and a touch-sensing controller is provided. The touch panel includes a plurality of touch blocks. Each of the touch blocks includes a first portion and a second portion. The touch-sensing controller includes a driving line and a plurality of sensing lines. The driving line is coupled to the first portions of the touch blocks, and the sensing lines are respectively coupled to the second portions of the touch blocks. The touch-sensing controller outputs a driving signal to the first portions through the driving line and receives a plurality of sensing signals generated by the second portions according to the driving signal through the sensing lines, so as to determine a touch coordinates corresponding to one of the touch blocks.

Claims

1. A touch-sensing apparatus, comprising:

a touch panel, comprising a plurality of touch blocks, wherein each of the touch blocks comprises a first portion and a second portion; and

a touch-sensing controller, comprising a first driving line and a plurality of first sensing lines, wherein the first driving line is coupled to the first portions of the touch blocks, and the first sensing lines are respectively coupled to the second portions of the touch blocks, wherein the touch-sensing controller outputs a first driving signal to the first portions through the first driving line and receives a plurality of first sensing signals generated by the second portions according to the first driving signal through the first sensing lines, so as to determine a touch coordinates corresponding to one of the touch blocks.

2. The touch-sensing apparatus according to claim 1, wherein the touch-sensing controller comprises:

a driving module, outputting the first driving signal to the first portions through the first driving line according to a control signal; and

a sensing module, receiving the first sensing signals through the first sensing lines and generating a touch information according to the first sensing signals.

3. The touch-sensing apparatus according to claim 2, wherein the touch-sensing controller further comprises a processing module, the processing module is coupled to the driving module and the sensing module, and the processing module outputs the control signal to the driving module and determines the touch coordinates corresponding to one of the touch blocks according to the touch information.

4. The touch-sensing apparatus according to claim 1, wherein the touch panel further comprises a plurality of second driving lines and a plurality of second sensing lines, the second driving lines and the second sensing lines are coupled to the touch-sensing controller, and the touch-sensing controller outputs a plurality of second driving signals to the touch panel through the second driving lines and receives a plurality of second sensing signals corresponding to the second driving signals through the second sensing lines.

5. The touch-sensing apparatus according to claim 1, wherein the first driving signal is coupled to the second portions of the touch blocks through the first portions of the touch blocks to generate the first sensing signals.

6. The touch-sensing apparatus according to claim 1, wherein the first portion and the second portion of each of the touch blocks respectively comprise a first annulus and a second annulus, and the first annulus and the second annulus are concentric and coplanar.

7. The touch-sensing apparatus according to claim 1, wherein the first portion and the second portion of each of the touch blocks are distributed in a spiral manner and are extended toward an inside of the touch block.

8. The touch-sensing apparatus according to claim 1, wherein the first portion and the second portion of each of the touch blocks are in an annular polygonal shape and have a same geometric center.

9. The touch-sensing apparatus according to claim 1, wherein the first portion and the second portion of each of the touch blocks respectively comprise a sawtooth portion, and the sawtooth portions are arranged in an alternating manner.

10. The touch-sensing apparatus according to claim 1, wherein the first portion and the second portion of each of the touch blocks respectively present a comb shape and are arranged in an alternating manner.

11. The touch-sensing apparatus according to claim 1, wherein the first portion and the second portion of each of the touch blocks form a petal shape.

12. The touch-sensing apparatus according to claim 11, wherein the first portions are connected with each other to produce a diamond pattern.

13. The touch-sensing apparatus according to claim 1, wherein the first portion of each of the touch blocks has a disposition area, and the second portion of the touch block is located within the disposition area.

14. The touch-sensing apparatus according to claim 1, wherein the second portion of each of the touch blocks has a disposition area, and the first portion of the touch block is located within the disposition area.