Display device for displaying images involving display pixels and non-display pixels

• US 20070159567A1
• Filed: 01/10/2006
• Published: 07/12/2007
• Est. Priority Date: 01/10/2006
• Status: Active Grant

• Current Assignee: InnoLux Corporation
• Original Assignee: Toppoly Optoelectronics Corporation (InnoLux Corporation)
• Inventors: Lin, Ching-Wei, Huang, Jing-Chen
• Granted Patent: US 8,139,174 B2
• Time in Patent Office: Days
• US Class Current: 349/43
• CPC Class Codes: G02F 1/136204 Arrangements to prevent high voltage or static electricity failures

Abstract

Display devices for displaying images are provided. A representative display device incorporates a display panel that includes a display pixel and a non-display pixel. The display pixel includes at least one switching thin-film transistor and the non-display pixel includes dummy thin-film transistors. A number of the dummy thin-film transistors exceeds a number of the switching thin-film transistors.

Claims

1. A display device for displaying images comprising:

a display panel comprising;

a plurality of display pixels, each comprising at least one switching thin-film transistor; and

a plurality of non-display pixels, each comprising a plurality of dummy thin-film transistors, wherein a number of the dummy thin-film transistors of a first non-display pixel among the non-display pixels exceeds a number of the switching thin-film transistors of a first display pixel among the display pixels.

2. The display device as claimed in claim 1, wherein a channel length of one dummy thin-film transistor is less than that of one of the switching thin-film transistors.

3. The display device as claimed in claim 1, wherein the dummy thin-film transistors of the first non-display pixel are connected in series.

4. The display device as claimed in claim 1, wherein the dummy thin-film transistors of the first non-display pixel are connected in parallel.

5. The display device as claimed in claim 1, wherein the dummy thin-film transistors of-the first non-display pixel are divided into a plurality of first dummy thin-film transistors and a plurality of second dummy thin-film transistors and wherein the gates of the first and the second dummy thin-film transistors are coupled to each other.

6. The display device as claimed in claim 5, wherein the first dummy thin-film transistors are connected to each other in series and the second dummy thin-film transistors are connected to each other in parallel.

7. The display device as claimed in claim 5, wherein the first dummy thin-film transistors are connected to each other in series and the second dummy thin-film transistors are connected to each other in series.

8. The display device as claimed in claim 7, wherein one of the first dummy thin-film transistors is connected with one of the second dummy thin-film transistors in parallel.

9. The display device as claimed in claim 1, further comprising:

a gate driver operative to supply a plurality of scan signals to the display panel; and

a source driver operative to supply a plurality of data signals to the display panel.

10. The display device as claimed in claim 1 further comprising:

means for providing signals to the display panel.

11. A display device for displaying images comprising:

a display panel comprising a display pixel and a non-display pixel, the display pixel comprising at least one switching thin-film transistor, the non-display pixel comprising dummy thin-film transistors, wherein a number of the dummy thin-film transistors exceeds a number of the switching thin-film transistors.

12. The display device as claimed in claim 11, wherein the dummy thin-film transistors are connected in series.

13. The display device as claimed in claim 11, wherein the dummy thin-film transistors are connected in parallel.

14. The display device as claimed in claim 11, wherein the dummy thin-film transistors are divided into a first group of dummy thin-film transistors and a second group of dummy thin-film transistors and wherein the dummy thin-film transistors have gates, and the gates of the first group and the second group of dummy thin-film transistors are coupled.

15. The display device as claimed in claim 14, wherein dummy thin-film transistors of the first group are connected to each other in series and dummy thin-film transistors of the second group are connected to each other in parallel.

16. The display device as claimed in claim 11, wherein the display device comprises an electronic device, the electronic device comprising the display panel.

17. The display device as claimed in claim 16, wherein the electronic device is a laptop computer.

18. The display device as claimed in claim 16, further comprising:

means for providing signals to the display panel.