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A liquid crystal display panel and a liquid crystal display device

A liquid crystal display panel and liquid crystal layer technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problem of difficult sensing under the screen of the liquid crystal display panel, and achieve the effect of improving the strength

Active Publication Date: 2022-02-22
WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present application provide a liquid crystal display panel and a liquid crystal display device, which provide a collimated optical path for under-screen sensing for the liquid crystal display panel, which can effectively avoid the problem of optical crosstalk without affecting normal display, so as to solve the problem of Difficult technical problems in realizing under-screen sensing of liquid crystal display panels

Method used

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  • A liquid crystal display panel and a liquid crystal display device
  • A liquid crystal display panel and a liquid crystal display device
  • A liquid crystal display panel and a liquid crystal display device

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Embodiment Construction

[0030] Specific structural and functional details disclosed herein are representative only and are for purposes of describing example embodiments of the present application. This application may, however, be embodied in many alternative forms and should not be construed as limited to only the embodiments set forth herein.

[0031] In the description of this application, it should be understood that the terms "central", "lateral", "upper", "lower", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the application and simplifying the description, rather than indicating or implying the referred device Or that an element must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the application....

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Abstract

The application discloses a liquid crystal display panel and a liquid crystal display device. The display area of ​​the liquid crystal display panel includes a pixel layer, a liquid crystal layer, a first polarizer and an optical sensor arranged in sequence; The first polarizing unit and the second polarizing unit are arranged; the liquid crystal layer includes a first liquid crystal unit corresponding to the first polarizing unit and a second liquid crystal unit corresponding to the second polarizing unit, and the polarization of the polarized light passing through the first liquid crystal unit The direction remains unchanged, and the polarization direction of the polarized light passing through the second liquid crystal unit is rotated by 90°; the pixel layer includes a transparent area corresponding to the first liquid crystal unit and a pixel area corresponding to the second liquid crystal unit; the optical sensor and the first liquid crystal unit The polarizing unit is set accordingly. The application provides a collimated optical path for the optical sensor through the correspondingly arranged transparent area, the first liquid crystal unit and the first polarizing unit, avoiding optical crosstalk, and realizing the sensing technology under the LCD screen.

Description

technical field [0001] The present application relates to the technical field of under-screen sensing liquid crystal display devices, in particular to a liquid crystal display panel and a liquid crystal display device. Background technique [0002] In the field of small and medium-sized displays, full-screen technology has become the current key development direction, that is, to maximize the screen-to-body ratio of the human-computer interaction interface through the development of related technologies. The first-generation full-screen technology mainly focuses on changing the screen size ratio from 16:9 to 18+:9. The second-generation full-screen technology further compresses the upper, lower, left, and right boundaries of the screen, and even uses flexible folding technology to maximize the viewing area. , and the other direction of the current full screen is to integrate the fingerprint recognition, camera, face recognition, distance sensor and other sensors of the displ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02F1/13357
CPCG02F1/133528G02F1/13362
Inventor 查国伟
Owner WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD
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