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Display panel and display device

A display panel and signal selection technology, applied in static indicators, character and pattern recognition, print image acquisition, etc., can solve the problem of low fingerprint recognition accuracy, achieve the effect of improving fingerprint recognition accuracy and reducing width

Active Publication Date: 2020-09-25
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the present invention provides a display panel and a display device, which solves the technical problem of low fingerprint identification accuracy of the display panel in the prior art

Method used

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  • Display panel and display device
  • Display panel and display device
  • Display panel and display device

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Embodiment Construction

[0026] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0027] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0028] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0029] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a display panel and a display device. The display panel includes: a scan line, a data line, a fingerprint sensor, a scan drive circuit, a data drive circuit and a control unit. The scan drive circuit includes a shift register and a signal selection circuit, wherein , the shift register includes a plurality of shift register units, the signal selection circuit includes a plurality of signal selection units, the selection signal input end of each signal selection unit receives a scan signal output by a shift register unit, and the control unit in the first scan period In, at least output display enable signal to the signal control terminal of the first signal selection unit, and control the data drive circuit to output at least preset black voltage signal to the first data line, at least select to the first signal in the second scanning period The signal control terminal of the unit outputs a fingerprint enabling signal. Through the present invention, the frame of the display panel can be reduced while improving the accuracy of fingerprint identification.

Description

technical field [0001] The present invention relates to the field of display technology, and more particularly, to a display panel and a display device. Background technique [0002] Fingerprints are inherent to everyone. With the development of technology, a variety of display devices with fingerprint recognition functions have appeared on the market, such as mobile phones, tablet computers, and smart wearable devices. Before operating a display device with a fingerprint recognition function, the user only needs to touch the display device with a finger to perform authorization verification, which simplifies the authorization verification process. Moreover, with the gradual increase in the application scenarios of the fingerprint recognition function, the fingerprint recognition area is gradually changed from Some areas have evolved into full-screen recognition. [0003] In the existing display devices based on optical fingerprint recognition technology, the fingerprint re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G09G3/36
CPCG09G3/3677G06V40/1306
Inventor 郑志伟
Owner XIAMEN TIANMA MICRO ELECTRONICS