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Liquid crystal display panel and vehicle-mounted display device

A liquid crystal display panel and liquid crystal layer technology, which is applied in the direction of instruments, nonlinear optics, optics, etc., can solve the problems of light leakage in the dark state of the liquid crystal display panel

Inactive Publication Date: 2020-07-31
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing liquid crystal display panels that can achieve ultra-low reflectivity have dark state light leakage, and this problem needs to be solved urgently

Method used

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  • Liquid crystal display panel and vehicle-mounted display device

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Embodiment Construction

[0032] 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.

[0033] In an ultra-low reflectivity liquid crystal display panel, in addition to setting a quarter-wave plate between the upper polarizer of the liquid crystal display panel and the color filter substrate, in order to realize the normal display of the liquid crystal display panel, it is usually necessary to set another A quarter wave plate. After research, it is found that the slow axes of the two quarter-wave plates are orthogonal (that is, perpendicular to each other) when observed in the vertical direction, and...

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Abstract

The invention provides a liquid crystal display panel and a vehicle-mounted display device. The liquid crystal display panel comprises an array substrate, a color film substrate and a liquid crystal layer, wherein the liquid crystal layer is located between the array substrate and the color film substrate, a first polaroid is located on a side, away from the array substrate, of the color film substrate, a first quarter-wave plate is positioned between the first polaroid and the color film substrate, a second polaroid is located on a side, away from the color film substrate, of the array substrate, a second quarter-wave plate is positioned between the color film substrate and the liquid crystal layer, at least one first retarder and at least one second retarder are located between the firstpolaroid and the first quarter-wave plate, the first retarder meets the condition that NY is equal to NZ and NX is not equal to NY, the second retarder meets the condition that NX is equal to NY, andNX is not equal to NZ, NX, NY and NZ are the refractive indexes of the delay pieces in the X direction, the Y direction and the Z direction respectively, and the delay retarders comprise the first retarder and the second retarder. The invention provides a liquid crystal display panel and a vehicle-mounted display device to avoid dark-state light leakage.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal display panel and a vehicle-mounted display device. Background technique [0002] With the development of science and technology and the progress of society, people are increasingly dependent on the exchange and transmission of information. As the main carrier and material basis for information exchange and transmission, displays have become a hot research topic for many scientists. [0003] At present, the reflectivity of the liquid crystal display panel is required to be higher and higher, for example, the overall reflectivity of the liquid crystal display panel to the external ambient light is required to be less than 1%. Reducing reflectivity is an important technical development direction of liquid crystal display panels. In order to reduce the reflection of the liquid crystal display panel on the external ambient light, a quarter-wave plate is usually arr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335G02F1/13363
CPCG02F1/133528G02F1/13363G02F1/133638
Inventor 周俊
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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