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Touch display substrate and touch display device

A touch display substrate and touch electrode technology, which is applied in the direction of instruments, electrical digital data processing, and input/output process of data processing, etc., can solve problems such as low efficiency, small touch area, and increased system power consumption, and achieve Reduce power consumption, improve touch response time, and simplify the effect of turning on the number of touch signals

Pending Publication Date: 2019-11-01
BOE TECH GRP CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the above technical problems, the present invention provides a touch display substrate and a touch display device, which solve the problem that the touch area of ​​the touch area of ​​the current touch display substrate is small, and the power consumption of the system is increased when corresponding to a large-area touch , the problem of low efficiency

Method used

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  • Touch display substrate and touch display device
  • Touch display substrate and touch display device
  • Touch display substrate and touch display device

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Embodiment Construction

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the following will clearly and completely describe the technical solutions of the embodiments of the present invention in conjunction with the drawings of the embodiments of the present invention. Apparently, the described embodiments are some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the described embodiments of the present invention belong to the protection scope of the present invention.

[0026] The current TDDI (Touch and Display Driver Integration) display touch panel is to divide the common electrode at the top of the entire display area into a*b number of touch electrode blocks ( figure 1 The region indicated by the dotted rectangular frame in ), and transmits individual touch signals to each touch electrode block by adding independent touch leads between display pixels....

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Abstract

The invention relates to a touch display substrate. The touch display substrate comprises a plurality of touch electrodes used for receiving common voltage signals and touch signals in a time-sharingmode, and further comprises first touch leads connected with the touch electrodes in a one-to-one correspondence mode, second touch leads which are located between two adjacent rows or two adjacent columns of touch electrodes, and a switch selection unit, wherein each touch electrode is connected with the corresponding first touch lead through a first connecting structure; at least two adjacent touch electrodes are connected with the second touch leads through second connecting structures; and the switch selection unit is used for controlling the first connection structure and / or the second connection structure to be switched between an on state and an off state. The invention further relates to a touch display device.

Description

technical field [0001] The present invention relates to the technical field of manufacturing touch display products, in particular to a touch display substrate and a touch display device. Background technique [0002] Display panel TDDI technology (Touch and Display Driver Integration) is a new generation of display touch technology. Because the touch sensor is integrated into the display, the screen can be thinner and the transmittance higher to meet the needs of mobile phones. There is an increasing demand for thinner and higher brightness. The existing TDDI panel design is to divide the VCOM layer (touch electrode layer) corresponding to the pixel area into blocks and add touch lines (touch leads) on the panel to realize the block VCOM layer in the gap between frames. The touch unit is used to realize the touch function. The realization principle of the touch function is to divide the VCOM layer of the touch unit as the first level of the capacitor, and the finger or ot...

Claims

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Application Information

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IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/0416G06F3/044
Inventor 林坚张勇华刚方浩博张丽敏
Owner BOE TECH GRP CO LTD
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