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Display panel and display device

A display panel, liquid crystal display panel technology, applied in optics, instruments, character and pattern recognition, etc., can solve the problem of low accuracy of fingerprint recognition process

Active Publication Date: 2020-04-17
XIAMEN TIANMA MICRO ELECTRONICS
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] Embodiments of the present invention provide a display panel and a display device to solve the problem of low accuracy in the fingerprint identification process of the existing liquid crystal display

Method used

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  • Display panel and display device

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Embodiment Construction

[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0023] An embodiment of the present invention provides a display panel, including a first polarizer, a liquid crystal display panel, and a second polarizer arranged sequentially from the non-light-emitting side to the light-emitting side; the first absorption axis of the first polarizer and the second polarizer The second absorption axes of are perpendicular to each other;

[0024] The display area of ​​the liquid crystal display panel includes sub-pixels arranged in an array; the sub-pixels at least include first...

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Abstract

The invention discloses a display panel and a display device. The display panel comprises a first polaroid, a liquid crystal display panel and a second polaroid. A display area of the liquid crystal display panel comprises a plurality of sub-pixels. The sub-pixels comprise first color sub-pixels and second color sub-pixels. The transmittance of the second color sub-pixels is smaller than that of the first color sub-pixels. The display area comprises a fingerprint identification area, and the fingerprint identification area comprises a plurality of photosensitive units. The photosensitive unitsare arranged in the non-opening areas of the sub-pixels. A first absorption axis of the first polaroid is arranged along a first direction, a second absorption axis of the second polaroid is arrangedalong a second direction, and the photosensitive units are arranged in the non-opening areas of the first color sub-pixels along the first direction; or, the first absorption axis is arranged along the second direction, the second absorption axis is arranged along the first direction, and the photosensitive units are arranged in the non-opening areas of the second color sub-pixels along the firstdirection. According to the technical scheme provided by the invention, the problem of relatively low fingerprint identification accuracy of the liquid crystal display screen can be solved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] With the rapid development of display technology, display panels with fingerprint recognition functions have gradually spread in people's lives. Fingerprints are inherently unique and invariable features that can be distinguished from others. A series of ridges and valleys. For liquid crystal display (Liquid Crystal Display, LCD), its optical fingerprint recognition under the screen is through the difference in reflectivity between fingerprint valleys and ridges to realize the differentiation of different fingerprint information received by the light-sensing unit to form a fingerprint image. [0003] Existing liquid crystal display uses the light emitted by the pixels as the detection light for fingerprint recognition. The fingerprint recognition area is matched with a photosensitive unit circuit, but t...

Claims

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Application Information

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IPC IPC(8): G02F1/1335G06K9/00
CPCG02F1/133528G06V40/1318
Inventor 方丽婷陈建群
Owner XIAMEN TIANMA MICRO ELECTRONICS
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