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A kind of touch sensor and display device

A touch sensor and touch technology, applied in instruments, computing, electrical and digital data processing, etc., can solve problems such as touch offset, and achieve the effect of improving touch accuracy

Active Publication Date: 2020-11-20
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a touch sensor and a display device to solve the problem in the prior art that the touch is shifted due to the irregular area

Method used

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  • A kind of touch sensor and display device
  • A kind of touch sensor and display device
  • A kind of touch sensor and display device

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Experimental program
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Embodiment Construction

[0032] In order to achieve full-screen display and full-screen touch, such as Figure 2a and Figure 2b as shown, Figure 2a and Figure 2b They are schematic structural diagrams of the touch sensor provided by the embodiment of the present invention. Generally, devices such as a camera and an earpiece are placed in the special-shaped area A of the touch sensor, and only the touch detection area B can realize touch control and display. Since the substrate of the touch sensor in the profiled area A is cut off, as image 3 as shown, image 3 It is a schematic diagram of the touch electrode structure of the touch sensor in the prior art. The first touch electrode RX1 arranged on both sides of the special-shaped area will be disconnected at the special-shaped area A, which will cause the touch detection area B of the touch sensor. The load capacitances of the first touch electrode RX1 and the second touch electrode RX2 are inconsistent. When the touch detection area where the ...

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PUM

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Abstract

The invention discloses a touch sensor and a displaying device. The touch sensor comprises a touch detection area and a special shape area, due to the presence of the special shape area, the size of afirst touch electrode is smaller than that of a second touch electrode, if a metal grid of the first touch electrode is the same as that of the second touch electrode, load capacitance of the first touch electrode can be inconsistent with that of the second touch electrode, and by setting the metal wire area of the first touch electrode to be roughly equal to that of the second touch electrode, the load capacitance of the first touch electrode can be consistent with that of the second touch electrode. In this way, the problem that the touch precision of the touch sensor is low due to the presence of the special shape area is solved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a touch sensor and a display device. Background technique [0002] With the development of display technology, the full screen has a large screen-to-body ratio and an ultra-narrow bezel. Compared with ordinary display screens, it can greatly improve the visual effect of the viewer, and thus has received widespread attention. At present, in a display device with a full screen such as a mobile phone, in order to realize the functions of Selfie, video call and fingerprint recognition, a front camera, an earpiece, a fingerprint recognition area or physical buttons are usually arranged on the front of the display device. like figure 1 As shown in the structural diagram of the display panel, the front camera 10, earpiece 20, etc. are generally arranged in the uppermost non-display area of ​​the display panel, and fingerprint recognition or physical buttons 30 are generally arranged i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0418G06F3/044
Inventor 周星耀
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD