Integrated touch control display panel and display apparatus

• US 10,275,101 B2
• Filed: 11/22/2016
• Issued: 04/30/2019
• Est. Priority Date: 07/29/2016
• Status: Active Grant

• Current Assignee: Tianma Microelectronics Company Limited, Xiamen Tianma Micro-Electronics Co., Ltd.
• Original Assignee: Tianma Microelectronics Company Limited, Xiamen Tianma Micro-Electronics Co., Ltd.
• Inventors: Lai, Qingjun, Cao, Zhaokeng, Shen, Poping, Zhou, Xiufeng, Zhu, Yihua, Zhang, Zhaodong
• Primary Examiner(s): Pham, Viet D
• Application Number:
  US15/359,497
• Publication Number:
  US 20170075456A1
• Time in Patent Office: 889 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 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/0443 using a single layer of sensing electrodes
• CPC Class Codes: G06F 3/0445 using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
• 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

Abstract

An integrated touch control display panel and a display apparatus are disclosed. The integrated touch control display panel comprises a touch-control-emitting-electrode-array including a plurality of touch control emitting strip electrodes arranged along a first direction; and a touch-control-sensing-electrode-array including a plurality of touch control sensing strip electrodes arranged along a second direction. An orthogonal projection of any touch control sensing strip electrode to the touch-control-emitting-electrode-array at least partially overlaps with any of the touch control emitting strip electrodes; and the touch control sensing strip electrodes are metal mesh electrodes, the metal mesh electrodes comprising a plurality of metal curves. This can reduce the resistance of the touch control sensing strip electrode, such that the integrated touch control display panel and the display apparatus have a more sensitive touch control sensing effect.

Claims

1. An integrated touch control display panel, wherein it comprises:

a touch-control-emitting-electrode-array including a plurality of touch control emitting strip electrodes arranged along a first direction; and

a touch-control-sensing-electrode-array including a plurality of touch control sensing strip electrodes arranged along a second direction;

wherein

an orthogonal projection of any one of the touch control sensing strip electrodes to the touch-control-emitting-electrode-array overlaps at least partially with any one of the touch control emitting strip electrodes;

the touch control sensing strip electrodes are metal mesh electrodes, the metal mesh electrodes comprising a plurality of metal curves;

the metal curves comprise first metal arcs and second metal arcs arranged alternately and in series;

the first metal arcs have a first end and a second end;

the second metal arcs have a third end and a fourth end;

lines connecting first ends and second ends of the respective first metal arcs on a given metal curve is parallel to the first direction, and lines connecting third ends and fourth ends of the respective second metal arcs on the given metal curve is parallel to the first direction;

a center of the first metal arc and a center of the second metal arc on the given metal curve are disposed on two opposite sides of the metal curve;

the metal curves in a given touch control sensing strip electrode have a fifth end and a sixth end;

a first connecting line connecting the respective fifth ends in the given touch control sensing strip electrode is a straight line segment and a second connecting line connecting the respective sixth ends in the given touch control sensing strip electrode is a straight line segment; and

two adjacent metal curves in the given touch control sensing strip electrode are mirrored symmetrical about the first direction.

2. The integrated touch control display panel according to claim 1, wherein:

a circle encompassing the first metal arc is tangent to a circle encompassing the second metal arc adjacent to the first metal arc in the given metal curve.

3. The integrated touch control display panel according to claim 1, wherein:

the fifth ends of the respective metal curves in the given touch control sensing strip electrode overlap with the first ends of the respective first metal arcs in the respective metal curves of the touch control sensing strip electrode.

4. The integrated touch control display panel according to claim 3, wherein:

the first connecting line and the second connecting line extend along the second direction.

5. The integrated touch control display panel according to claim 3, wherein the respective touch control sensing strip electrodes further comprise a plurality of fifth connecting lines;

and

the fifth connecting line is a straight line segment for connecting any two adjacent metal curves in the given touch control sensing strip electrode.

6. The integrated touch control display panel according to claim 5, wherein an included angle α

between the connecting line and the first direction satisfies;

α

<

90°

.

7. The integrated touch control display panel according to claim 1, wherein:

the first metal arcs of one metal curve of the two adjacent metal curves in the given touch control sensing strip electrode are tangent to the first metal arcs of the other metal curve of the two adjacent metal curves;

or

the second metal arcs of one metal curve of the two adjacent metal curves in the given touch control sensing strip electrode are tangent to the second metal arcs of the other metal curve of the two adjacent metal curves.

8. The integrated touch control display panel according to claim 1, wherein the integrated touch control display panel further comprises a plurality of touch control sensing signal lines;

first ends of the respective touch control sensing signal lines are correspondingly connected to the touch control sensing strip electrodes.

9. The integrated touch control display panel according to claim 8, wherein:

the touch control sensing signal lines and the touch control sensing strip electrodes are disposed in a single electrically conductive layer.

10. The integrated touch control display panel according to claim 8, comprising:

an array substrate, the touch-control-emitting-electrode-array provided on the array substrate; and

a color film substrate provided opposite to the array substrate, the touch-control-sensing-electrode-array provided on the color film substrate;

wherein the touch-control-sensing-electrode-array is provided on a side of the color film substrate distal to the array substrate; and

the touch-control-emitting-electrode-array is provided on the array substrate facing the color film substrate.

11. The integrated touch control display panel according to claim 10, wherein:

the array substrate is further formed with a plurality of scanning lines, and data lines crossing the scanning lines;

the scanning lines extend along the first direction, and the data lines extend along the second direction.

12. The integrated touch control display panel according to claim 10, further comprising an integrated circuit and a plurality of touch control scanning signal lines;

first ends of the touch control scanning signal lines correspondingly connected to the touch control emitting strip electrodes, and second ends of the touch control scanning signal lines correspondingly connected to the integrated circuit;

second ends of the touch control sensing signal lines correspondingly connected to the integrated circuit; and

the integrated circuit providing a touch control scanning signal to the touch control emitting strip electrodes and receiving touch control sensing signals from the touch control sensing strip electrodes during a touch control period;

wherein the touch control emitting strip electrodes may be multiplexed as common electrodes during a display period; and

the integrated circuit is configured to provide a common voltage signal to the touch control emitting strip electrodes during the display period.

13. An integrated touch control display panel according to claim 3, comprising:

a touch-control-emitting-electrode-array including a plurality of touch control emitting strip electrodes arranged along a first direction; and

a touch-control-sensing-electrode-array including a plurality of touch control sensing strip electrodes arranged along a second direction;

wherein

an orthogonal projection of any one of the touch control sensing strip electrodes to the touch-control-emitting-electrode-array overlaps at least partially with any one of the touch control emitting strip electrodes; and

the touch control sensing strip electrodes are metal mesh electrodes, the metal mesh electrodes comprising a plurality of metal curves;

wherein

the metal curves comprise first metal arcs and second metal arcs arranged alternately and in series;

the first metal arcs have a first end and a second end;

the second metal arcs have a third end and a fourth end;

lines connecting first ends and second ends of the respective first metal arcs on a given metal curve is parallel to the first direction, and lines connecting third ends and fourth ends of the respective second metal arcs on the given metal curve is parallel to the first direction; and

a center of the first metal arc and a center of the second metal arc on the given metal curve are disposed on two opposite sides of the metal curve;

wherein

the respective metal curves in the given touch control sensing strip electrode have a seventh end and an eighth end;

a third connecting line sequentially connecting the respective seventh ends in the given touch control sensing strip electrode is a zig-zag line segment, and a fourth connecting line sequentially connecting the respective eighth ends in the given touch control sensing strip electrode is a zig-zag line segment; and

the seventh ends of the respective metal curves in the given touch control sensing strip electrode overlap with first ends of the first metal arcs in the metal curves of the touch control sensing strip electrode;

wherein the respective touch control sensing strip electrodes further comprise a plurality of fifth connecting lines; and

the fifth connecting line is a straight line segment for connecting any two adjacent metal curves in the given touch control sensing strip electrode.

14. The integrated touch control display panel according to claim 13, wherein an included angle α

between the connecting line and the first direction satisfies;

α

<

90°

.

15. The integrated touch control display panel according to claim 13, wherein the integrated touch control display panel further comprises a plurality of touch control sensing signal lines;

first ends of the respective touch control sensing signal lines are correspondingly connected to the touch control sensing strip electrodes.

16. The integrated touch control display panel according to claim 15, wherein:

the touch control sensing signal lines and the touch control sensing strip electrodes are disposed in a single electrically conductive layer.

17. The integrated touch control display panel according to claim 15, comprising:

an array substrate, the touch-control-emitting-electrode-array provided on the array substrate; and

a color film substrate provided opposite to the array substrate, the touch-control-sensing-electrode-array provided on the color film substrate;

wherein the touch-control-sensing-electrode-array is provided on a side of the color film substrate distal to the array substrate; and

the touch-control-emitting-electrode-array is provided on the array substrate facing the color film substrate.

18. The integrated touch control display panel according to claim 17, wherein:

the array substrate is further formed with a plurality of scanning lines, and data lines crossing the scanning lines;

the scanning lines extend along the first direction, and the data lines extend along the second direction.

19. The integrated touch control display panel according to claim 17, further comprising an integrated circuit and a plurality of touch control scanning signal lines;

first ends of the touch control scanning signal lines correspondingly connected to the touch control emitting strip electrodes, and second ends of the touch control scanning signal lines correspondingly connected to the integrated circuit;

second ends of the touch control sensing signal lines correspondingly connected to the integrated circuit;

the integrated circuit providing a touch control scanning signal to the touch control emitting strip electrodes and receiving touch control sensing signals from the touch control sensing strip electrodes during a touch control period;

the touch control emitting strip electrodes may be multiplexed as common electrodes during a display period; and

the integrated circuit is configured to provide a common voltage signal to the touch control emitting strip electrodes during the display period.

20. The integrated touch control display panel according to claim 13, wherein a circle encompassing the first metal arc is tangent to a circle encompassing the second metal arc adjacent to the first metal arc in the given metal curve.

21. An integrated touch control display, comprising an integrated touch control display panel, wherein the integrated touch control display panel comprises:

a touch-control-emitting-electrode-array including a plurality of touch control emitting strip electrodes arranged along a first direction; and

a touch-control-sensing-electrode-array including a plurality of touch control sensing strip electrodes arranged along a second direction;

an orthogonal projection of any one of the touch control sensing strip electrodes to the touch-control-emitting-electrode-array overlaps at least partially with any one of the touch control emitting strip electrodes; and

the touch control sensing strip electrodes are metal mesh electrodes, the metal mesh electrodes comprising a plurality of metal curves;

wherein the metal curves comprise first metal arcs and second metal arcs arranged alternately and in series;

the first metal arcs have a first end and a second end;

the second metal arcs have a third end and a fourth end;

lines connecting first ends and second ends of the respective first metal arcs on a given metal curve is parallel to the first direction, and lines connecting third ends and fourth ends of the respective second metal arcs on the given metal curve is parallel to the first direction; and

a center of the first metal arc and a center of the second metal arc on the given metal curve are disposed on two opposite sides of the metal curve;

wherein

the respective metal curves in the given touch control sensing strip electrode have a seventh end and an eighth end;

a third connecting line sequentially connecting the respective seventh ends in the given touch control sensing strip electrode is a zig-zag line segment, and a fourth connecting line sequentially connecting the respective eighth ends in the given touch control sensing strip electrode is a zig-zag line segment; and

the seventh ends of the respective metal curves in the given touch control sensing strip electrode overlap with first ends of the first metal arcs in the metal curves of the touch control sensing strip electrode;

wherein the respective touch control sensing strip electrodes further comprise a plurality of fifth connecting lines; and

the fifth connecting line is a straight line segment for connecting any two adjacent metal curves in the given touch control sensing strip electrode.