Display panel and display device

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...

AI Technical Summary

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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