Touch panel and touch display device

Patent metadata

Field	Value
Publication number	US-2016328070-A1
Application number	US-201514829625-A
Country	US
Kind code	A1
Filing date	Aug 18, 2015
Priority date	May 8, 2015
Publication date	Nov 10, 2016
Grant date	—

Abstract

A touch panel including: a plurality of touch electrodes; and a plurality of touch signal lines electrically connected with the plurality of touch electrodes; wherein each of the plurality of touch electrodes is electrically connected with at least two of the touch signal lines, and the at least two touch signal lines electrically connected with the same touch electrode are electrically connected with each other via at least one conductive wire.

First claim

We claim:

1 . A touch panel, comprising:
a plurality of touch electrodes; and a plurality of touch signal lines electrically connected with the plurality of touch electrodes; wherein each of the plurality of touch electrodes is electrically connected with at least two of the touch signal lines, and the at least two touch signal lines electrically connected with the same touch electrode are electrically connected with each other via at least one conductive wire.

2 . The touch panel of claim 1 , wherein, the touch electrode functions as a common electrode for displaying in an image displaying period.

3 . The touch panel of claim 1 , wherein, at least one of the touch signal line and the conductive wire has a straight line shape, a zigzag shape or a wave shape.

4 . The touch panel of claim 1 , wherein, each of the plurality of touch signal lines is electrically connected with the touch electrode corresponding to the touch signal line via at least two through-holes.

5 . The touch panel of claim 1 , wherein, the touch electrode has a rectangle shape, a diamond shape or a circular shape.

6 . The touch panel of claim 1 , wherein the touch signal lines electrically connected with different touch electrodes have the same length.

7 . The touch panel of claim 1 , further comprising:
an array substrate; and data lines and scan lines on the array substrate, wherein an orthogonal projection of the touch signal line onto the array substrate partly overlaps an orthogonal projection of the data line or the scan line onto the array substrate.

8 . The touch panel of claim 1 , further comprising:
an array substrate; and data lines and scan lines on the array substrate, wherein an orthogonal projection of the conductive wire onto the array substrate partly overlap an orthogonal projection of the data line or the scan line onto the array substrate.

9 . The touch panel of claim 1 , further comprising:
a plurality of pixel units arranged as an array, wherein adjacent touch signal lines electrically connected with the same one touch electrode are spaced apart from each other by at least one row or column of pixel units.

10 . The touch panel of claim 1 , further comprising:
a plurality of pixel units arranged as an array, wherein the at least two touch signal lines electrically connected with the same one touch electrode are electrically connected with each other via a plurality of conductive wires, and adjacent two of the plurality of conductive wires are spaced apart from each other by at least one row or column of pixel units.

11 . The touch panel of claim 1 , further comprising:
an array substrate; and a color filter substrate opposite to the array substrate, wherein a black matrix is disposed on the color filter substrate, and orthogonal projections of the touch signal lines and orthogonal projections of the conductive wires onto the array substrate are located within an orthogonal projection of the black matrix onto the array substrate.

12 . A touch display device, comprising:
a touch panel; and a driver chip, configured for display driving and touch driving; wherein the touch panel comprises: a plurality of touch electrodes; and a plurality of touch signal lines electrically connected with the plurality of touch electrodes; wherein each of the plurality of touch electrodes is electrically connected with at least two of the touch signal lines, and the at least two touch signal lines electrically connected with the same touch electrode are electrically connected with each other via at least one conductive wire.

13 . The touch display device of claim 12 , wherein, the driver chip is located on the touch panel, and the at least two touch signal lines electrically connected with each touch electrode are connected to interfaces of the driver chip in a one-to-one manner.

14 . The touch display device of claim 12 , wherein, the driver chip is located on the touch panel, the at least two touch signal lines electrically connected with each touch electrode are connected together with one chip lead wire in a non-display region of the touch panel, and the chip lead wire is connected to an interface of the driver chip in a one-to-one manner.

15 . The touch display device of claim 12 , wherein, the driver chip is located on a flexible printed circuit board connected with the touch panel, the at least two touch signal lines electrically connected with each touch electrode are connected with chip lead wires on the flexible printed circuit board in a one-to-one manner, and the chip lead wires are connected with interfaces of the driver chip in a one-to-one manner.

16 . The touch display device of claim 12 , wherein, the driver chip is located on a flexible printed circuit board of the touch panel, the at least two touch signal lines electrically connected with each touch electrode are connected with chip lead wires on the flexible printed circuit board in a one-to-one manner, and the chip lead wires corresponding to each touch electrode are connected with one interface of the driver chip.

Assignees

• Xiamen Tianma Micro Electronics Co Ltd
• Tianma Microelectronics Co Ltd

Inventors

• Lin Shaoting
• Ma Yuping

Classifications

• G06F3/0416 Primary

  Control or interface arrangements specially adapted for digitisers · CPC title

• G06F3/04164 Primary

  Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads · CPC title

• G06F3/0443

  using a single layer of sensing 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

• G06F3/044

  by capacitive means · CPC title