DISPLAY DEVICE

• US 20160357286A1
• Filed: 05/20/2016
• Published: 12/08/2016
• Est. Priority Date: 06/05/2015
• Status: Abandoned Application

• Current Assignee: InnoLux Corporation
• Original Assignee: InnoLux Corporation
• Inventors: LIU, Tung-Kai, CHANG, Chih-Hao, CHEN, Bo-Feng, TSAI, Chu-Hung, CHEN, Hung-Kun, SUNG, Li-Wei, TSAI, Chia-Hao
• Application Number:
  US15/161,035
• Publication Number:
  US 20160357286A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

A display device is provided. The display device includes a first substrate, wherein the first substrate includes: a plurality of scan lines disposed on the first substrate; a plurality of data lines disposed on the first substrate, wherein the plurality of the scan lines and the plurality of the data lines define a plurality of sub-pixels; and a sensing electrode disposed on the first substrate and having an opening; a second substrate disposed opposite the first substrate; and a display medium disposed between the first substrate and the second substrate, wherein the sensing electrode is disposed corresponding to at least two of the plurality of sub-pixels, and the opening is disposed corresponding to one of the plurality of scan lines or one of the plurality of data lines.

Claims

1. A display device, comprising:

a first substrate;

a second substrate disposed opposite the first substrate;

a display medium disposed between the first substrate and the second substrate;

a plurality of scan lines disposed on the first substrate;

a plurality of data lines disposed on the first substrate;

a plurality of sub-pixels defined by the plurality of scan lines and the plurality of the data lines; and

a sensing electrode disposed on the first substrate and having an opening,

wherein the sensing electrode is disposed corresponding to at least two of the plurality of sub-pixels, and the opening is disposed corresponding to one of the plurality of scan lines or one of the plurality of data lines.

2. The display device as claimed in claim 1, wherein the sensing electrode comprises a plurality of sub-sensing electrodes and a connection portion, wherein the opening is disposed between the plurality of the sub-sensing electrodes, wherein the plurality of the sub-sensing electrodes is electrically connected to each other through the connection portion.

3. The display device as claimed in claim 2, wherein the connection portion is disposed at a center portion of the sensing electrode.

4. The display device as claimed in claim 2, wherein the connection portion is disposed at a periphery of the sensing electrode.

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

a plurality of thin film transistors connected to the plurality of scan lines, the plurality of data lines, and the plurality of sub-pixels respectively; and

a touch signal line connected to the sensing electrode through a via.

6. The display device as claimed in claim 2, wherein each of the plurality of sub-sensing electrodes is disposed corresponding to at least two of the plurality of sub-pixels.

7. The display device as claimed in claim 2, wherein a portion of the plurality of sub-sensing electrodes are disposed corresponding to one of the plurality of sub-pixels, and another portion of the plurality of sub-sensing electrodes are disposed corresponding to at least two of the plurality of sub-pixels.

8. The display device as claimed in claim 1, wherein each of the plurality of scan lines comprises a main line portion and a plurality of gate electrodes extending out from the main line portion,

wherein the sensing electrode has a plurality of openings, wherein the plurality of the openings comprises a first-direction opening and a second-direction opening, wherein the first direction is an extending direction of the main line portion of the plurality of scan lines, and the second direction is an extending direction of the plurality of data lines,

wherein the first-direction opening is disposed corresponding to a region between two adjacent of the plurality of gate electrodes,

wherein the second-direction opening is disposed corresponding to one of the plurality of data lines.

9. The display device as claimed in claim 8, further comprising:

a plurality of touch signal lines disposed on the first substrate,

wherein the second-direction opening is disposed corresponding to one of the touch signal lines.

10. The display device as claimed in claim 8, wherein two adjacent of the plurality of sensing electrodes are spaced apart by a first spacing, wherein a width of the first-direction opening along the second direction is the same as a width of the first spacing along the second direction.

11. The display device as claimed in claim 8, wherein two sides of the first-direction opening which are farthest away from each other are respectively aligned to two adjacent edges of the plurality of gate electrodes to which the first-direction opening corresponds to.

12. The display device as claimed in claim 8, wherein the second-direction opening is disposed corresponding to a region between the main line portions of two adjacent of the plurality of scan lines.

13. The display device as claimed in claim 8, wherein two adjacent of the plurality of sensing electrodes are spaced apart by a second spacing, wherein a width of the second-direction opening along the first direction is the same as a width of the second spacing along the first direction.

14. The display device as claimed in claim 8, wherein two sides of the second-direction opening which are farthest away from each other are respectively aligned to two adjacent edges of the scan lines to which the second-direction opening corresponds to.

15. The display device as claimed in claim 1, wherein the second substrate comprises a light-shielding layer, wherein two adjacent of the plurality of sensing electrodes are spaced apart by a first spacing, wherein the first spacing is disposed corresponding to the light-shielding layer.

16. The display device as claimed in claim 1, wherein a first spacing extending along a first direction is disposed corresponding to the plurality of the scan lines, wherein the first direction is an extending direction of the plurality of scan lines.

17. The display device as claimed in claim 16, wherein the first spacing is disposed corresponding to 3 to 10 of the scan lines.

18. The display device as claimed in claim 1, wherein a second spacing extending along a second direction is disposed corresponding to the plurality of the data lines, wherein the second direction is an extending direction of the plurality of data lines.

19. The display device as claimed in claim 18, wherein the second spacing is disposed corresponding to 3 to 10 of the data lines.

20. The display device as claimed in claim 1, wherein a ratio of an area of the sensing electrode to an area of the opening is in a range of about 1 to 9.