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Display panel and display device

A display panel and switch technology, applied in identification devices, static indicators, character and pattern recognition, etc., can solve the problems of fingerprint recognition display performance impact, etc., achieve the effect of shortening the length, reducing interference, and avoiding interference

Active Publication Date: 2019-04-16
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the fingerprint identification driver chip and the display driver chip are set up separately, additional parasitic capacitance will be added between the signal lines, which will affect the performance of fingerprint identification and display

Method used

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

Examples

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Embodiment Construction

[0019] 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.

[0020] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as any limitation of the invention, its application or uses.

[0021] 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.

[0022] 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...

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Abstract

The invention discloses a display panel and a display device. The display panel comprises multiple electrodes, multiple fingerprint elements, multiple first switches, multiple second switches, multiple first control lines, multiple second control lines, multiple signal lines, a driving chip and multiple reset switches; third poles of the first switches are electrically connected with the signal lines, third poles of the second switches are electrically connected with the signal lines, the driving chip comprises a reset port which is electrically connected with the first poles of the reset switches, the second poles of the reset switches are electrically connected with the signal lines, and the third poles of the reset switches are electrically connected with grounding signals. By multiplexing a data line into a transmission line of fingerprint signal transmission, the number of the signal lines on the display panel is reduced, the opening rate of the display panel is increased, the production cost of the display panel is lowered, and interference, generated in display and fingerprint recognition, of the display panel is reduced.

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] In the display panel provided by the prior art, the display panel has display and fingerprint recognition functions at the same time. Since the display and fingerprint recognition functions need to be provided by the driver chips separately, different driver chips are required. If the fingerprint recognition chip and the display driver chip are to be integrated, the length of the integrated driver chip will be very long; in addition, since the wiring for transmitting the fingerprint recognition signal and the display signal needs to be connected to the driver chip, the display panel The non-display area on the side where the driver chip is installed will also be widened, otherwise there is not enough space to accommodate the fingerprint identification signal wiring and the display signal wiring....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/30G09G3/20G06K9/00
CPCG09F9/30G09G3/20G06V40/1318
Inventor 汤碧云庄知龙黄建才许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS
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