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Transparent display substrate and transparent display device

A transparent display and substrate technology, applied in plane/plate-shaped light guides, light guides of lighting systems, instruments, etc., can solve the problems of light leakage in dark state display, lower display contrast, etc., and achieve the effect of overcoming light leakage and improving display contrast

Active Publication Date: 2022-06-07
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present application expects to provide a transparent display substrate and a transparent display device to solve the problem of light leakage and lower display contrast when displaying in a dark state

Method used

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  • Transparent display substrate and transparent display device
  • Transparent display substrate and transparent display device
  • Transparent display substrate and transparent display device

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Embodiment Construction

[0022] The present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the related invention, but not to limit the invention. In addition, it should be noted that, for the convenience of description, only the parts related to the invention are shown in the drawings.

[0023] It should be noted that the embodiments in the present application and the features of the embodiments may be combined with each other in the case of no conflict. The present application will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

[0024] like figure 1 As shown, the transparent display substrate provided by the embodiment of the present invention includes a display layer 2 and a liquid crystal grating layer 3 disposed on one side of the display layer 2. The display layer 2 ...

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Abstract

The present application relates to the field of display technology, and discloses a transparent display substrate and a transparent display device. The transparent display substrate includes a display layer and a liquid crystal grating layer arranged on one side of the display layer, the display layer includes a black matrix and a display area defined by the black matrix, and the liquid crystal grating layer is away from the display layer A backlight unit is provided on one side, and the backlight unit includes a backlight layer for emitting backlight light to the display layer, and at least for focusing the backlight light facing the display area to the black matrix the concentrating layer. In the above solution, when the dark state is displayed, the backlight light facing the display area is condensed to the black matrix through the light-gathering layer, so that no backlight light is transmitted at the display area, which overcomes the problem of light leakage when the dark state is displayed, and improves the performance of the display area. Display contrast.

Description

technical field [0001] The present application generally relates to the field of display technology, and in particular, to a transparent display substrate and a transparent display device. Background technique [0002] In the existing transparent display device, the Lambertian light of the LED light source is modulated and coupled into the light guide plate at a certain central angle through the free-form surface reflector. The function of the grating and the light-taking grating is to take out the large-angle light that is totally reflected and propagated in the light guide plate at a collimated angle, realizing a collimated light source with high transmittance (most of the background light can pass through the light guide plate); in the light-taking grating The liquid crystal grating and the light-shielding layer array are arranged above, and the outgoing collimated light is absorbed by the light-shielding layer to realize the dark state (L0). The grating emits after bein...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02F1/1335G02B19/00
CPCG02F1/133606G02F1/133512G02B19/0047G02F1/133607G02B6/0018G02B6/0055G02B6/005G02F1/133618G02F1/133553G02B6/0016G02F1/133603G02B6/34G02B5/1814G02B5/1828G02B5/1819G02B5/1823
Inventor 孟宪东谭纪风王维凌秋雨陈小川
Owner BOE TECH GRP CO LTD
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