TOUCH SCREEN AND TERMINAL DEVICE COMPRISING SAME

• US 20160342237A1
• Filed: 01/29/2015
• Published: 11/24/2016
• Est. Priority Date: 01/23/2015
• Status: Active Grant

• Current Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Original Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd. (TCL Technology Group Corp.)
• Inventors: YE, Chengliang
• Granted Patent: US 9,841,852 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 1/1626 with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]
• CPC Class Codes: G06F 1/1643 the display being associated to a digitizer, e.g. laptops that can be used as penpads details related to the relative motion of the display enclosure with respect to the body enclosure, e.g. to move between laptop and tablet PC configuration G06F1/1615
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0418 for error correction or compensation, e.g. based on parallax, calibration or alignment
• CPC Class Codes: G06F 3/044 by capacitive means

Abstract

Disclosed are a touch screen and a terminal device. The touch screen includes a first ancillary electrode and a second ancillary electrode. The first ancillary electrode is arranged in a first marginal zone of the touch screen. The second ancillary electrode is arranged in second marginal zone that is opposite to the first marginal zone. The touch screen includes additional ancillary electrodes to increase the touch accuracy at an edge of the touch screen so as to enhance the performance of the touch screen, allowing for easy touch operation conducted by a user.

Claims

1. A touch screen, comprising:

a first ancillary electrode and a second ancillary electrode, wherein the first ancillary electrode is arranged in a first marginal zone of the touch screen and the second ancillary electrode is arranged in a second marginal zone opposite to the first marginal zone.

2. The touch screen as claimed in claim 1, wherein the first ancillary electrode has a length less than or equal to a length of the first marginal zone.

3. The touch screen as claimed in claim 1, wherein the second ancillary electrode has a length less than or equal to a length of the second marginal zone.

4. The touch screen as claimed in claim 1, wherein the first marginal zone and the second marginal zone each comprise an area from an edge of a touch zone of the touch screen to an outer frame of the touch screen.

5. The touch screen as claimed in claim 2, wherein the first marginal zone and the second marginal zone each comprise an area from an edge of a touch zone of the touch screen to an outer frame of the touch screen.

6. The touch screen as claimed in claim 3, wherein the first marginal zone and the second marginal zone each comprise an area from an edge of a touch zone of the touch screen to an outer frame of the touch screen.

7. The touch screen as claimed in claim 1, wherein the touch screen comprises a capacitive touch screen.

8. A terminal device, comprising:

a touch screen, the touch screen comprising a first ancillary electrode and the second ancillary electrode, wherein the first ancillary electrode is arranged in a first marginal zone of the touch screen and the second ancillary electrode is arranged in a second marginal zone opposite to the first marginal zone.

9. The terminal device as claimed in claim 8, wherein the first ancillary electrode has a length less than or equal to a length of the first marginal zone.

10. The terminal device as claimed in claim 8, wherein the second ancillary electrode has a length less than or equal to a length of the second marginal zone.

11. The terminal device as claimed in claim 8, wherein the first marginal zone and the second marginal zone each comprise an area from an edge of a touch zone of the touch screen to an outer frame of the touch screen.

12. The terminal device as claimed in claim 9, wherein the first marginal zone and the second marginal zone each comprise an area from an edge of a touch zone of the touch screen to an outer frame of the touch screen.

13. The terminal device as claimed in claim 10, wherein the first marginal zone and the second marginal zone each comprise an area from an edge of a touch zone of the touch screen to an outer frame of the touch screen.

14. The terminal device as claimed in claim 8, wherein the touch screen comprises a capacitive touch screen.