Display panel and display device

A technology for display panels and display devices, applied in optics, instruments, electrical components, etc., can solve problems such as affecting display effects and appearing moiré fringes

Inactive Publication Date: 2019-03-15
HISENSE VISUAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, such a display device structure brings new problems, that is, the repetitive pixel structure in the upper and lower display panels, due to the periodic grating pattern with similar spatial frequency, undergoes various effects such as shading effect, diffraction effect and interference effect. Function, moiré fringes will appear during image display, which will affect the display effect

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  • Display panel and display device

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Embodiment Construction

[0036] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. 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.

[0037] Moire fringes are an optical phenomenon first discovered by French researcher Mr. Moir. Moiré fringes are the visual result of interference between two lines or objects at a constant angle and frequency. When the human eye cannot distinguish the two lines or two objects, it can only see interference patterns, and the patterns in this optical phenomenon are called Moiré fringes. In practical applications, if two periodic grating ...

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Abstract

The invention discloses a display panel and a display device. The display panel comprises a first display module and a second display module which is located at the light emission side of the first display module; the second display module is a liquid crystal display module, and the first display module is used for modulating light rays entering the second display module; the first display modulecomprises multiple first pixel units which are distributed in an array; the second display module comprises multiple second pixel units which are distributed in an array; the display panel further comprises quantum dot layers between the first pixel units and the second pixel units. By adopting a mode that emergent light of the first pixel units excites quantum dots, mixed-color light is generated, and backlight is provided for the second display module. Quantum dot materials in the quantum dot layers are emitted to the periphery at all angles through the light rays emitted by stimulation, theoriginal propagation direction of the ray lights is changed, the generated light rays can better damage a pattern generated by a periodicity grating structure, and accordingly the moire fringe is removed.

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] Local dimming (Local Dimming) refers to dividing the backlight of the display panel into multiple areas. When displaying images, the brightness of the backlight in each area is adjusted simultaneously according to the needs of the display screen, so as to achieve energy saving and enhance image quality. Purpose. The display device used at the present stage adopts a direct-type backlight and increases the number of point light sources to increase the number of backlight partitions, but this method is limited by the size of the point light sources, but a large increase in the number of light sources will also lead to a large increase in the number of driving circuits. The increase requires a higher precision production level, which increases the difficulty and cost of production, and also increases the th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02F1/1335H01L27/32
CPCG02F1/133528G02F1/133606G02F1/133536G02F1/133614H10K59/38
Inventor 刘卫东李富琳高上杨洲
Owner HISENSE VISUAL TECH CO LTD
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