Touch panel and display device

Patent metadata

Field	Value
Publication number	US-9817532-B2
Application number	US-201514905681-A
Country	US
Kind code	B2
Filing date	May 19, 2015
Priority date	Dec 26, 2014
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

The present disclosure provides a touch panel and a display device. The touch panel includes a conductive layer which includes first electrode layers parallel arranged in columns in a Y-axis direction and second electrode layers parallel arranged in rows in an X-axis direction. Each first electrode layer includes first pattern electrodes sequentially connected, and each second electrode layer includes second pattern electrodes sequentially connected. Each first pattern electrode is of a hexagonal shape. The second pattern electrodes are arranged at a region between two adjacent columns of the first electrode layers. A projection of a connection end between two adjacent second pattern electrodes in an identical row onto a plane parallel to the conductive layer partially overlaps a projection of a connection end between two adjacent first pattern electrodes in an identical column which are arranged adjacent to the two adjacent second pattern electrodes in an identical row.

First claim

What is claimed is:

1. A touch panel, comprising a conductive layer, the conductive layer comprising first electrode layers parallel arranged in a plurality of columns in a Y-axis direction and second electrode layers parallel arranged in a plurality of rows in an X-axis direction;
wherein each first electrode layer comprises a plurality of first pattern electrodes sequentially connected to each other;
each second electrode layer comprises a plurality of second pattern electrodes sequentially connected to each other;
each first pattern electrode is of a hexagonal shape;
a plurality of second pattern electrodes in a same column of different second electrode layers is arranged at a region between two adjacent columns of the first electrode layers;
a first connection end is arranged between two adjacent first pattern electrodes in an identical column;
a second connection end is arranged between two adjacent second pattern electrodes in an identical row;
the first connection end and the second connection end are located at a corner where two sides of the first pattern electrode intersect; and
projections of the first connection end and the second connection end onto a plane parallel to the conductive layer partially overlap each other.

2. The touch panel according to claim 1 , wherein the second connection end is arranged between the two adjacent second pattern electrodes in an identical row which are positioned adjacent to the two adjacent first pattern electrodes in an identical column.

3. The touch panel according to claim 1 , wherein each edge of the second pattern electrode is of a shape which is determined according to an edge of the first pattern electrode adjacent to the second pattern electrode.

4. The touch panel according to claim 1 , wherein a third pattern electrode is arranged between the second pattern electrode and the first pattern electrode adjacent to each other, the third pattern electrode surrounds the first pattern electrode, and a fourth pattern electrode is arranged at a middle portion of each first pattern electrode.

5. The touch panel according to claim 4 , wherein the fourth pattern electrode is of a shape identical to the first pattern electrode.

6. The touch panel according to claim 5 , wherein the first pattern electrode is of a hexagonal shape symmetrical in the X-axis direction and the Y-axis direction and comprises two edges opposite to each other and parallel to the Y-axis direction, and the second pattern electrode comprises two edges opposite to each other and parallel to the X-axis direction.

7. The touch panel according to claim 6 , wherein the first pattern electrode is of a length of Py in the Y-axis direction; the second pattern electrode is of a length of Px in the X-axis direction; the third pattern electrode is of a width of A, the first pattern electrode is of a width of B; a gap between the third pattern electrode and its adjacent first pattern electrode and a gap between the third pattern electrode and its adjacent second pattern electrode are both E, a gap between the two adjacent second pattern electrodes in two adjacent rows is also E, and a distance between two edges of the first pattern electrode opposite to each other and parallel to the Y-axis direction is D;
when Px and Py are each of a value greater than or equal to 3 mm and less than or equal to 4 mm, A is of a value within a range from 0.1 mm to 0.3 mm, B is of a value within a range from 0.2 mm to 0.4 mm, E is of a value within a range from 0.01 mm to 0.03 mm and D=(Px−2*E−2*A)/2;
when Px and Py are each of a value greater than 4 mm and less than or equal to 5 mm, A is of a value within a range from 0.13 mm to 0.33 mm, B is of a value within a range from 0.25 mm to 0.45 mm, E is of a value within a range from 0.01 mm to 0.03 mm and D=(Px−2*E−2*A)/2;
when Px and Py are each of a value greater than 5 mm and less than or equal to 6 mm, A is of a value within a range from 0.18 mm to 0.38 mm, B is of a value within a range from 0.3 mm to 0.5 mm, E is of a value within a range from 0.01 mm to 0.03 mm and D=(Px−2*E−2*A)/2; and
when Px and Py are each of a value greater than 6 mm and less than or equal to 7 mm, A is of a value within a range from 0.23 mm to 0.43 mm, B is of a value within a range from 0.4 mm to 0.6 mm, E is of a value within a range of 0.01 mm to 0.03 mm, and D=(Px−2*E−2*A)/2.

8. The touch panel according to claim 4 , wherein the first pattern electrode, the second pattern electrode, the third pattern electrode and/or the fourth pattern electrode each have edges of a corrugated shape.

9. The touch panel according to claim 4 , wherein the third pattern electrode comprises at least two portions separated from each other, and each portion corresponds to one edge of the first pattern electrode.

10. The touch panel according to claim 4 , wherein the third pattern electrode is arranged at both sides of the first connection end, a top surface of the third pattern electrode adjacent to the first connection end is spaced apart from the first connection end at a predetermined distance I, and I is of a value within a range from 0.4 mm to 0.8 mm.

11. The touch panel according to claim 1 , wherein each first pattern electrode is of a length of Py in the Y-axis direction and a length of D in the X-axis direction; each second pattern electrode is of a length of Px in the X-axis direction and a length of Py in the Y-axis direction; a gap between the first pattern electrode and its adjacent second pattern electrode and a gap between the two second pattern electrodes in two adjacent rows are both E, where D=(Px−2*E)/2, Px and Py are each of a value within a range of 3 mm to 7 mm, and E is of a value within a range of 0.01 mm to 0.03 mm.

12. The touch panel according to claim 1 , wherein the pattern electrodes are connected to each other directly via the electrode layer at one of the first connection end and the second connection end, the pattern electrodes are connected to each via a bridge at the other of the first connection end and the second connection end; the first connection end or the second connection end where the pattern electrodes are connected to each other directly by the electrode layer is of a width G in the X-axis direction, and G is of a value within a range of 0.05 mm to 0.2 mm.

13. The touch panel according to claim 1 , wherein the Y-axis direction is a column direction, and the X-axis direction is a row direction.

14. The touch panel according to claim 13 , wherein the X-axis direction and the Y-axis direction crisscross.

15. A display device comprising a display substrate and the touch panel according to claim 1 .

16. A touch panel, comprising a conductive layer, the conductive layer comprising first electrode layers parallel arranged in a plurality of columns in a Y-axis direction and second electrode layers parallel arranged in a plurality of rows in an X-axis direction;
wherein each first electrode layer comprises a plurality of first pattern electrodes sequentially connected to each other;
each second electrode layer comprises a plurality of second pattern electrodes sequentially connected to each other;
each first pattern electrode is of a hexagonal shape;
a plurality of second pattern electrodes in a same column of different second electrode layers is arranged at a region between two adjacent columns of the first electrode layers;
a first connection end is arranged between two adjacent first pattern electrodes in an identical column;
a second connection end is arranged between two adjacent second pattern electrodes in an identical row;
projections of the first conne

Assignees

• Boe Technology Group Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd

Inventors

• Zhang Lei
• Hu Ming
• Xie Taofeng
• Wu Lingyan
• Liu Yang
• Zhang Ming
• Liu Guodong

Classifications

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• G06F3/0448 Primary

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title