A display panel and a display device
A display panel and display unit technology, applied in the direction of instruments, light guides, optics, etc., can solve the problem of low contrast of display devices
Active Publication Date: 2022-06-24
BOE TECH GRP CO LTD
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] Embodiments of the present invention provide a display panel and a display device, which are used to solve the problem of low contrast of display devices with anti-peeping display functions existing in the prior art
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0033] Aiming at the problem of low contrast of a display device with a privacy-proof display function in the prior art, embodiments of the present invention provide a display panel and a display device.
[0034] The specific implementations of the display panel and the display device provided by the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The thickness and shape of each film layer in the drawings do not reflect the actual scale, and are only intended to illustrate the content of the present invention.
[0035] In a first aspect, an embodiment of the present invention provides a display panel, such as figure 1 As shown, it includes: a light guide plate 101, an opposite substrate 102 disposed opposite to the light guide plate 101, a liquid crystal layer 103 located between the light guide plate 101 and the opposite substrate 102, a surface of the light guide plate 101 on the side close to the liquid cry...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| grating period | aaaaa | aaaaa |
| refractive index | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a display panel and a display device. The display panel includes: a light guide plate, an opposite substrate, a liquid crystal layer, a plurality of first light-taking structures located on the surface of the light guide plate close to the liquid crystal layer, and a plurality of The second light-trapping structure, and a plurality of light-adjusting structures located between the opposite substrate and the liquid crystal layer; at least part of the display unit has the second light-trapping structure. Within the range of the set angle, only the light used for the display screen is taken out by the first light-trapping structure, so the display screen of the display panel has a high contrast, while outside the range of the set angle, there is the first light-trapping structure And the light taken out by the second light-taking structure, the light taken out by the second light-taking structure does not interfere with the light, but will interfere with the light taken out by the first light-taking structure, thereby reducing the contrast at a large viewing angle and unable to read effective display information , so as to realize the anti-peeping display on the basis of ensuring a high contrast ratio of the display screen.
Description
technical field [0001] The present invention relates to the field of display technology, in particular to a display panel and a display device. Background technique [0002] Liquid Crystal Display (LCD) is a large-scale display device currently used. It has a series of advantages such as high color gamut, lightness and thinness, and fast response time. It has mature technology in theoretical research and practical technology. Not only can it meet the needs of conventional display, but also have a variety of different display modes, such as transparent display, privacy display, dual-view display, etc. [0003] The existing anti-peep display technology can be divided into fixed anti-peep display and switchable anti-peep display, among which the fixed anti-peep display is mostly by adding anti-peep film on the original display device to realize anti-peep display. The switched privacy display is to limit the viewing angle by reducing the contrast of the side viewing angle to re...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02B6/00
CPCG02F1/133615G02B6/0035
Inventor 李忠孝
Owner BOE TECH GRP CO LTD