TOUCH PANEL AND DISPLAY DEVICE

• US 20170192563A1
• Filed: 07/14/2016
• Published: 07/06/2017
• Est. Priority Date: 01/05/2016
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Original Assignee: BOE Technology Group Co., Ltd., Hefei BOE Optoelectronics Technology Company Limited (BOE Technology Group Co., Ltd.)
• Inventors: LIAO, Liqing
• Granted Patent: US 10,088,968 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 2203/04112 Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• 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
• CPC Class Codes: G06F 3/047 using sets of wires, e.g. crossed wires

Abstract

The present invention belongs to the field of display technology, and provides a touch panel and a display device, which can solve the problem of low sensitivity, complicated wiring, and high power consumption existing in the existing touch panel. The touch panel of the invention includes a substrate and a touch control layer provided on the substrate, the touch control layer comprising a plurality of touch control units, wherein each of the touch control units has a convex part and a concave part, wherein a shape of the convex part of any one of the touch control units matches with a shape of the concave part of a touch control unit adjacent thereto. The sensitivity of the touch panel provided in the present invention is significantly improved compared to the prior art.

Claims

1. A touch panel, comprising a substrate and a touch control layer provided on the substrate, the touch control layer comprising a plurality of touch control units, wherein each of the touch control units has a convex part and a concave part, wherein a shape of the convex part of any one of the touch control units matches with a shape of the concave part of a touch control unit adjacent thereto.

2. The touch panel of claim 1, wherein the touch control layer further comprises an auxiliary touch control unit provided in a peripheral region of the touch control layer, and a shape of the auxiliary touch control unit matches with a shape of the touch control unit also provided in the peripheral region of the touch control layer, such that a shape of the touch control layer corresponds to a shape of a display region of the touch panel.

3. The touch panel of claim 1, further comprising a plurality of signal lines, wherein one end of each signal line is connected to one of the touch control units, with the other end connected to a driving chip.

4. The touch panel of claim 3, wherein the signal lines and data lines of the touch panel are provided in one layer, and are formed of a same material.

5. The touch panel of claim 1, wherein each of the touch control units is time-division multiplexed as a common electrode of the touch panel.

6. The touch panel of claim 1, wherein a material of the touch control unit is ITO.

7. The touch panel of claim 1, wherein shapes of the plurality of the touch control units include a first shape and a second shape, the first shape and the second shape are alternately provided in both a row direction and a column direction;

wherein

a first side and a third side of the first shape are provided opposite to each other, and a second side and a fourth side of the first shape are provided opposite to each other;

the first side and the third side of the first shape each has one convex part, and these two convex parts are provided symmetrically;

the second side and the fourth side of the first shape each has one concave part, and these two concave parts are provided symmetrically; and

a first side and a third side of the second shape are provided opposite to each other, and a second side and a fourth side of the second shape are provided opposite to each other;

the first side and the third side of the second shape each has one concave part, and these two concave parts are provided symmetrically;

the second side and the fourth side of the second shape each has one convex part, and these two convex parts are provided symmetrically.

8. The touch panel of claim 7, wherein the touch control layer further comprises an auxiliary touch control unit provided in a peripheral region of the touch control layer, and a shape of the auxiliary touch control unit matches with a shape of the touch control unit also provided in the peripheral region of the touch control layer, such that a shape of the touch control layer corresponds to a shape of a display region of the touch panel.

9. The touch panel of claim 7, further comprising a plurality of signal lines, wherein one end of each signal line is connected to one of the touch control units, with the other end connected to a driving chip.

10. The touch panel of claim 9, wherein the signal lines and data lines of the touch panel are provided in a same layer, and are formed of a same material.

11. The touch panel of claim 7, wherein each of the touch control units is further time-division multiplexed as a common electrode of the touch panel.

12. The touch panel of claim 7, wherein a material of the touch control unit is ITO.

13. A display device, comprising the touch panel of claim 1,

14. A display device, comprising the touch panel of claim 2.

15. A display device, comprising the touch panel of claim 7.

16. A display device, comprising the touch panel of claim 8.