Touch panel, array substrate and display device

Patent metadata

Field	Value
Publication number	US-2021191544-A1
Application number	US-201816079612-A
Country	US
Kind code	A1
Filing date	Feb 12, 2018
Priority date	Jul 4, 2017
Publication date	Jun 24, 2021
Grant date	—

Abstract

The present disclosure provides a touch panel, an array substrate and a display device. The touch panel includes a touch control electrode unit including a first electrode and a second electrode which are insulated from each other, and the second electrode surrounds the first electrode. In the touch panel in which the second electrode surrounds the first electrode in the touch control electrode unit, since the first electrode and the second electrode are provided independently, touch control driving and sensing are performed on the first electrode and the second electrode respectively when the touch panel is being touched.

First claim

1 - 16 . (canceled)

17 . An array substrate, comprising:
a touch panel, comprising a touch control electrode unit, the touch control electrode unit comprising a first electrode and a second electrode which are insulated from each other, and the second electrode surrounding the first electrode; a common electrode; pixel electrodes, located above or below the common electrode; a first switch transistor, configured to drive the pixel electrodes in odd numbers in a row of pixel electrodes to display; a second switch transistor, configured to drive the pixel electrodes in even numbers in the row of pixel electrodes to display; a first gate line, connected to a gate of the first switch transistor; and a second gate line, connected to a gate of the second switch transistor; wherein one data line is provided every two columns of pixel electrodes, two adjacent columns of pixel electrodes which are provided with a data line therebetween are connected to the data line through the first switch transistor and the second switch transistor connected respectively to the two adjacent columns of pixel electrodes; a common signal line is provided between two adjacent columns of pixel electrodes which are not provided with a data line therebetween, the common signal line and the data line are formed in a same layer by using a same material, and the common signal line is connected to the common electrode through a via provided in an insulation layer located between the data line and the common electrode; the common signal line serves as the common electrode during display, and serves as a driving signal line and a sensing signal line of the touch panel during touch control; and the first electrode and the second electrode of the touch panel serve as the common electrode.

18 . The array substrate of claim 17 , wherein
the array substrate comprises a plurality of common signal lines, each of a plurality of first electrodes located in different rows and also serving as the common electrode is connected to a corresponding common signal line; and each of a plurality of second electrodes located in different rows and also serving as the common electrode is connected to a corresponding common signal line.

19 . The array substrate of claim 17 , wherein
the array substrate comprises a plurality of common signal lines, each of a plurality of first electrodes located in different rows and also serving as the common electrode is connected to a corresponding common signal line among the plurality of common signal lines connected in parallel; and each of a plurality of second electrodes located in different rows and also serving as the common electrode is connected to a corresponding common signal line among the plurality of common signal lines connected in parallel.

20 . A display device, comprising the array substrate of claim 17 .

21 . A display device, comprising the array substrate of claim 18 .

22 . A display device, comprising the array substrate of claim 19 .

Assignees

• Beijing Boe Optoelectronics Tech Co Ltd
• Boe Technology Group Co Ltd

Inventors

• Luo Xingyou
• Li Yue
• Chen Xi
• Li Yanchen
• Li Jinyu
• Feng Dawei
• Zhao Yu
• Hou Shaojun
• Wang Dong
• Lv Mingyang
• Guo Wang

Classifications

• G06F2203/04104

  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 title

• G06F3/0448

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

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F3/0446 Primary

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

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title