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Display panel with horizontal electric field, making method thereof and display device

A technology of display panel and horizontal electric field, applied in instrument, nonlinear optics, optics, etc., can solve the problem of light leakage of display panel

Inactive Publication Date: 2018-05-29
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When a horizontally oriented liquid crystal display panel realizes curved display in various ways, or when it is pressed under a force, it will more or less cause stress on the upper and lower substrates of the display panel, that is, the counter substrate and the array substrate, and then cause the substrate The base substrate produces optical anisotropy, and the polarization state of polarized light changes when it passes through the optically anisotropic substrate, which will cause different degrees of light leakage in the dark state of the display panel.

Method used

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  • Display panel with horizontal electric field, making method thereof and display device
  • Display panel with horizontal electric field, making method thereof and display device
  • Display panel with horizontal electric field, making method thereof and display device

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Embodiment Construction

[0048] In-Plane Switching (IPS, In-Plane Switching) and Advanced Super Dimension Switching (ADS, Advanced Super Dimension Switch) modes are commonly used display modes for existing wide-angle LCD panels, also known as horizontal electric field LCD panels.

[0049] Take the ADS type LCD as an example for specific description, such as figure 1 As shown, the ADS type LCD includes an opposite substrate 104 and an array substrate 102 , and a liquid crystal layer 103 located between the opposite substrate 104 and the array substrate 102 . In order to ensure normal display, an upper polarizer 105 and a lower polarizer 101 whose light transmission axes are perpendicular to each other are arranged on the outer sides of the opposite substrate 104 and the array substrate 102 respectively. Since the liquid crystal cannot emit light, the liquid crystal display panel also needs to be provided with a backlight ( figure 1not shown). The light emitted by the backlight is emitted through the ...

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Abstract

The invention discloses a display panel with a horizontal electric field, a making method thereof and a display device. A first compensation film is arranged between an opposite substrate and an arraysubstrate, a difference between phase difference of the first compensation film and that of a liquid crystal layer is integral multiples of incident light wavelength, and optical axis direction is perpendicular to initial optical axis direction of liquid crystal molecules in the liquid crystal layer. When polarization state of penetrating light is changed due to optical anisotropy generated whenthe opposite substrate and the array substrate receive nonuniform external force, the first compensation layer can offset phase delay when polarized light goes through the liquid crystal layer to enable total phase delay to be close to or equal to integral multiple of the incident light wavelength after light goes through the opposite substrate, the array substrate, the liquid crystal layer and the first compensation film, so that the light is enabled to be restored to original polarization state to a certain degree. In this way, when in a dark state, most of the light cannot be emitted from adisplay panel, so that the problem of dark-state light leakage is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a horizontal electric field display panel, a manufacturing method and a display device. Background technique [0002] Existing display devices mostly use liquid crystal (LCD, Liquid crystal display) display panels. When a horizontally oriented liquid crystal display panel realizes curved display in various ways, or when it is pressed under a force, it will more or less cause stress on the upper and lower substrates of the display panel, that is, the counter substrate and the array substrate, and then cause the substrate The base substrate produces optical anisotropy, and the polarization state of polarized light changes when it passes through the optically anisotropic base substrate, which will cause different degrees of light leakage in the dark state of the display panel. Contents of the invention [0003] In view of this, the embodiments of the present invention provide a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13363G02F1/1333
CPCG02F1/1333G02F1/13363G02F2413/02G02F1/134363G02F1/13394G02F2413/01G02F2413/13G02F1/133565G02F1/13398G02F1/134372G02F1/133634G02F1/133528G02F1/1337
Inventor 刘德强邵喜斌王菲菲占红明王凯旋刘浩林丽锋
Owner BOE TECH GRP CO LTD
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