Display device and display device
A technology for display devices and display devices, applied in instruments, nonlinear optics, optics, etc., can solve problems such as wide half-maximum width of reflection spectrum, low reflectivity, and limited thickness of liquid crystal layer
Active Publication Date: 2019-10-29
BOE TECH GRP CO LTD
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Problems solved by technology
[0004] However, due to the large half-peak width of the reflection spectrum of CLC and the limited thickness of the liquid crystal layer (cell gap) in reflective liquid crystal display devices, the reflectivity of CLC to external light is low, and it is difficult to meet people's needs for display effects.
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[0024] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] It should be noted that, unless otherwise defined, all terms (including technical and scientific terms) used in the embodiments of the present invention have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be interpreted as having meanings consistent with their meanings in the context of the rel...
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The embodiment of the invention provides a display device and a display apparatus and relates to the technical field of display. The reflectivity of a reflection-type cholesteric liquid crystal display device to corresponding color light in outside light can be improved, and the display effect of the display device can be optimized. The display device comprises a first substrate serving as the display side, a second substrate opposite to the first substrate in arrangement and a cholesteric liquid crystal layer arranged between the first substrate and the second substrate. The display device further comprises a photoluminescence layer arranged on the side, away from the first substrate, of the cholesteric liquid crystal layer, wherein the cholesteric liquid crystal layer reflects light having first wave length in the outside light, and the photoluminescence layer has a color corresponding to the first wave length by responding to the light excited by the outside light.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a display device and a display device. Background technique [0002] Cholesteric liquid crystal (CLC for short) molecules have two zero-field stable textures, namely the focal conic texture (abbreviated as fc state) that can transmit external light and the planar texture that can reflect external light. structure (abbreviated as p-state). Among them, the focal conic texture is formed by applying a certain voltage to the CLC, and the texture can still exist stably after the voltage is removed. The CLC in the fc state has a scattering effect on external light, and depending on the device structure, for The scattering effect of light is also different in detail. The p state can be obtained without applying a voltage, and the wavelength λ of the reflected light is related to the pitch p of the CLC molecule and the average refractive index n of the CLC, namely: λ=n×p; from ...
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IPC IPC(8): G02F1/137
CPCG02F1/13718G02F1/13762
Inventor 张笑谷新梁蓬霞
Owner BOE TECH GRP CO LTD