DISPLAY SUBSTRATE, DISPLAY PANEL AND DISPLAY APPARATUS HAVING THE SAME, AND FABRICATING METHOD THEREOF

• US 20170205921A1
• Filed: 05/20/2016
• Published: 07/20/2017
• Est. Priority Date: 08/20/2015
• Status: Abandoned Application

• Current Assignee: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Chengdu BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Inventors: Ye, Benyin, Wang, Zhidong, Wang, Benlian
• Application Number:
  US15/325,872
• Publication Number:
  US 20170205921A1
• Time in Patent Office: Days
• CPC Class Codes: G02F 1/13338 Input devices, e.g. touch panels
• CPC Class Codes: G02F 1/1343 Electrodes reflective electrodes G02F1/133553
• CPC Class Codes: G06F 2203/04103 Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
• CPC Class Codes: G06F 2203/04104 Multi-touch detection in digitiser, i.e. details about the simultaneous detection of a plurality of touching locations, e.g. multiple fingers or pen and finger
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes

Abstract

The present application discloses a display substrate comprising an electrode layer comprising an array of electrode units; each electrode unit comprises a first electrode and a second electrode in a one-to-one relationship; the first electrode is electrically isolated from the second electrode. The second electrode is a common electrode being controlled independently from the first electrode.

Claims

1. A display substrate, comprising:

an electrode layer comprising an array of electrode units;

each electrode unit comprises a first electrode and a second electrode in a one-to-one relationship;

the first electrode is electrically isolated from the second electrode;

wherein the second electrode is a common electrode being controlled independently from the first electrode.

4. The display substrate of claim 1, wherein each electrode unit comprises a first portion having a first shape and a second portion having a second shape complementary to the first shape, the first portion and the second portion are different electrodes selected from the first electrode and the second electrode.

5. The display substrate of claim 4, wherein the second portion is an inner portion and the first portion is an outer portion surrounding the inner portion;

the inner portion is the first electrode and the outer portion is the second electrode.

6. The display substrate of claim 4, wherein the second portion is an inner portion and the first portion is an outer portion surrounding the inner portion;

the inner portion is the second electrode and the outer portion is the first electrode.

7. The display substrate of claim 4, wherein the first shape is a rectangle, a triangle, or a rhomboid.

8. The display substrate of claim 1, wherein all first electrodes have a substantially uniform shape and dimension, and all second electrodes have a substantially uniform shape and dimension.

9. The display substrate of claim 1, wherein a plurality of first electrodes along a same array direction are electrically connected.

10. The display substrate of claim 9, wherein the plurality of first electrodes are electrically connected by a first wire, the first wire being a transparent wire extending through each of the plurality of first electrodes.

11. The display substrate of claim 9, wherein a plurality of second electrodes along a same array direction are electrically connected by a second wire.

12. The display substrate of claim 10, wherein the display substrate is a dual gate-type display substrate, the first wire and/or the second wire are dummy lines in the dual gate-type display substrate.

13. The display substrate of claim 1, further comprising an array of pixel electrodes;

each pixel electrode corresponding to each electrode unit in a one-to-one relationship.

14. The display substrate of claim 13, wherein each first electrode is at a position corresponding to each pixel electrode in plan view of the display substrate.

25. A display apparatus, comprising the display substrate of claim 1.

26. A method of driving a display apparatus of claim 25, wherein one frame period is temporally divided into a display mode for displaying an image in a display panel and a touch control mode for sensing a user touch, the display panel is alternately driven in the display mode and in the touch control mode, the method comprising:

applying a common voltage to the first electrode and the second electrode during the display mode; and

applying a touch scan signal to the first electrode during the touch control mode.

2. (canceled)

3. (canceled)

15. A method of fabricating a display substrate, comprising:

forming an electrode layer comprising an array of electrode units on a base substrate;

each electrode unit comprises a first electrode and a second electrode in a one-to-one relationship;

the first electrode is electrically isolated from the second electrode;

the second electrode is a common electrode; and

forming at least one driving circuit for controlling the first electrode and the second electrode independently.

16. The method of claim 15, further comprising forming an array of pixel electrodes;

each pixel electrode corresponding to each electrode unit in a one-to-one relationship.

21. The method of claim 15, wherein the step of forming an electrode layer comprises:

forming a conductive layer on the base substrate; and

partitioning the conductive layer into a plurality of electrode blocks, each electrode block comprising a first electrode and a second electrode.

22. The method of claim 15, further comprising forming a first wire connecting a plurality of first electrodes along a same array direction.

23. The method of claim 15, further comprising forming a second wire connecting a plurality of second electrodes along a same array direction.

24. The method of claim 22, wherein the display substrate is a dual gate-type display substrate, the method further comprising:

forming a plurality of dummy lines in the dual gate-type display substrate;

wherein the first wire and/or the second wire are dummy lines in the dual gate-type display substrate.

17. (canceled)

18. (canceled)

19. (canceled)

20. (canceled)