Touch screen panel and display device

Patent metadata

Field	Value
Publication number	US-2016259444-A1
Application number	US-201514654126-A
Country	US
Kind code	A1
Filing date	Jan 13, 2015
Priority date	Sep 16, 2014
Publication date	Sep 8, 2016
Grant date	—

Abstract

The present invention discloses a touch screen panel and a display device, the touch screen panel comprises an array substrate and an assembling substrate which are arranged opposite to each other, and a touch detection chip for detecting a touch, wherein the array substrate comprises: a first predetermined number of first self capacitive electrodes and first leads; the assembling substrate comprises: a second predetermined number of second self capacitive electrodes and second leads; projections of the first self capacitive electrodes on the assembling substrate fall within a region on the assembling substrate without the second self capacitive electrodes. In solutions of the present invention, width of the frame region of the array substrate or the assembling substrate can be reduced accordingly, and narrow frame of the touch screen panel can be realized.

First claim

1 - 12 . (canceled)

13 . A touch screen panel, comprising: an array substrate, an assembling substrate arranged opposite to the array substrate, and a touch detection chip for detecting a touch, wherein
the array substrate comprises: a first predetermined number of first self capacitive electrodes and first leads in one-to-one correspondence with the first self capacitive electrodes, the first leads are used for transmitting feedback signals generated by the first self capacitive electrodes to the touch detection chip; the assembling substrate comprises: a second predetermined number of second self capacitive electrodes and second leads in one-to-one correspondence with the second self capacitive electrodes, the second leads are used for transmitting feedback signals generated by the second self capacitive electrodes to the touch detection chip; and projections of the first self capacitive electrodes on the assembling substrate fall within a region on the assembling substrate without the second self capacitive electrodes.

14 . The touch screen panel of claim 13 , wherein the first self capacitive electrodes are located in an upper half part of the array substrate, and the second self capacitive electrodes are located in a lower half part of the assembling substrate.

15 . The touch screen panel of claim 13 , wherein the first self capacitive electrodes are located in a lower half part of the array substrate, and the second self capacitive electrodes are located in an upper half part of the assembling substrate.

16 . The touch screen panel of claim 13 , wherein the first self capacitive electrodes are located in a middle region of the array substrate, and the second self capacitive electrodes are located in a surrounding region of the assembling substrate.

17 . The touch screen panel of claim 13 , wherein the first self capacitive electrodes are located in a surrounding region of the array substrate, and the second self capacitive electrodes are located in a middle region of the assembling substrate.

18 . The touch screen panel of claim 13 , wherein the first predetermined number is equal to the second predetermined number.

19 . The touch screen panel of claim 13 , wherein the array substrate further comprises several common electrodes and a common voltage drive unit, the common electrodes are provided in the same layer as the first self capacitive electrodes, all the common electrodes are connected to the common voltage drive unit through one third lead, and all the first leads are further connected to the common voltage drive unit;
the common voltage drive unit is used to output a common voltage signal to the first self capacitive electrodes and the common electrodes during a display period, and output the common voltage signal to the common electrodes during a touch period.

20 . The touch screen panel of claim 19 , wherein the first self capacitive electrode is plate-shaped.

21 . The touch screen panel of claim 16 , wherein the first leads are provided in a different layer from the first self capacitive electrodes, each of the first self capacitive electrodes is electrically connected to one corresponding first lead through a via;
the second leads are provided in the same layer as the second self capacitive electrodes.

22 . The touch screen panel of claim 17 , wherein the second leads are provided in a different layer from the second self capacitive electrodes, each of the second self capacitive electrodes is electrically connected to one corresponding second lead through a via;
the first leads are provided in the same layer as the first self capacitive electrodes.

23 . The touch screen panel of claim 13 , wherein the second self capacitive electrode is a mesh-shaped electrode, meshes of which correspond to display regions of pixel units in the touch screen panel.

24 . The touch screen panel of claim 13 , wherein the assembling substrate further comprises: dummy electrodes provided in the same layer as the second self capacitive electrodes, all the dummy electrodes are connected together through a fourth lead, and the fourth lead is used to allow the dummy electrodes to be in a float state.

25 . A display device comprising the touch screen panel of claim 13 .

Assignees

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

Inventors

• Yang Shengji
• Dong Xue
• Wang Haisheng
• Liu Yingming
• Ding Xiaoliang
• Zhao Weijie
• Liu Hongjuan
• Li Changfeng

Classifications

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F3/0412 Primary

  Digitisers structurally integrated in a display · CPC title

• G06F3/04164

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

• G06F2203/04112

  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 title

• G06F3/04166

  Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving (Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184) · CPC title