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display device

A technology for a display device and a color filter layer, which is applied in the fields of instruments, nonlinear optics, optics, etc., can solve the problems of reducing the light output rate of the display device, the color gamut is not wide enough, and the design of the display device needs to be improved.

Active Publication Date: 2022-02-08
BOE TECH GRP CO LTD
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  • Claims
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AI Technical Summary

Problems solved by technology

However, the transmittance of the polarizer is lower than 50%, which will significantly reduce the light output rate of the display device and result in an insufficiently wide color gamut
Therefore, in order to achieve wide color gamut (Adobe RGB) and wide color gamut (such as DCI P3), the design of display devices at this stage still needs to be improved

Method used

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Embodiment Construction

[0037] The following describes the embodiments of the present invention in detail, and those skilled in the art will understand that the following embodiments are intended to explain the present invention, and should not be regarded as limiting the present invention. Unless otherwise specified, in the following examples that do not explicitly describe specific techniques or conditions, those skilled in the art can carry out according to commonly used techniques or conditions in this field or according to product instructions.

[0038] In one aspect of the invention, the invention provides a display device.

[0039] According to an embodiment of the present invention, refer to figure 1 , the display device includes a blue backlight 100 and a display panel; wherein the display panel is arranged on the light-emitting side of the blue backlight 100, and the display panel includes an array substrate 210, a liquid crystal layer 230, and a color filter substrate 260 stacked in layers...

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Abstract

The present invention proposes a display device, which includes: a blue backlight source capable of emitting blue light; a display panel arranged on the light emitting side of the blue backlight source, and includes an array substrate, a liquid crystal layer, and a color filter substrate stacked in layers, Among them, the liquid crystal layer is composed of cholesteric liquid crystal and can regulate blue light, and the color film substrate includes a red color film layer, a green color film layer and a blue color film layer arranged on the same layer, a red color film layer and a green color film layer. The color film layer is a photoluminescent layer, and the red color film layer emits red light when excited by the blue light, and the green color film layer emits green light when excited by the blue light; wherein, the display device does not include upper and lower polarizers. In the display device proposed by the present invention, the liquid crystal layer formed by the cholesteric liquid crystal has a more accurate modulation effect on blue light than white light. Therefore, it is not necessary to install polarizers on both sides of the display panel, and the display device can also be adjusted. The light output is controlled, thereby greatly improving the light output efficiency of the display device.

Description

technical field [0001] The present invention relates to the field of display technology, and in particular, the present invention relates to a display device. Background technique [0002] At present, liquid crystal display (LCD) display devices of electronic devices such as mobile phones, tablet computers, and smart watches generally need to use two polarizers with vertical polarization directions to realize the modulation of the natural light emitted by the white backlight source by the liquid crystal layer. However, the transmittance of the polarizer is lower than 50%, which will significantly reduce the light extraction rate of the display device and result in an insufficiently wide color gamut. Therefore, in order to realize a wide color gamut (Adobe RGB) and a wide color gamut (such as DCI P3), the design of the display device at the present stage still needs to be improved. Contents of the invention [0003] The present invention has been accomplished based on the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02F1/1335G02F1/137
CPCG02F1/133514G02F1/1336G02F1/133621G02F1/137G02F1/13718G02F1/133624G02F1/133617G02F1/1347G02F1/13478
Inventor 祝明王宇瑶廖峰陈小川董学
Owner BOE TECH GRP CO LTD
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