a display device

Abstract

The invention discloses a display device, relates to the field of display technology, and is used for improving viewing experience of viewers. The display device includes: a display panel, and a grating layer arranged inside or outside the display panel; along the direction from the center of the sight-concentration area of ​​the display device to the non-line-of-sight concentration area of ​​the display device, the grating period of the grating layer After the incident light incident on the grating layer is diffracted in the area corresponding to the non-line-of-sight concentration area of ​​the display device, the obtained non-zero-order diffracted light falls into the viewer's line of sight. The grating period of the grating layer gradually decreases along the direction from the center of the line-of-sight concentrated area to the non-line-of-sight concentrated area, and the incident light is diffracted in the area corresponding to the non-line-of-sight concentrated area of ​​the grating layer and obtained non-zero-order diffracted light Fall into the viewer's line of sight, increase the light quantity and intensity of the light emitted from the non-sight concentration area and fall into the viewer's line of sight, and improve the viewing experience of the viewer.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device. Background technique [0002] A display device is a device used to display text, numbers, symbols, pictures, or images formed by a combination of at least two of the text, numbers, symbols, and pictures. The display device may be a flat display device, a curved display device, a 3D display device, a near-eye display device, an AR / VR display device, and the like. [0003] At present, for an existing display device, the display device has a fixed viewing field concentration area and a non-viewing field concentration area. Concentrated in the field of view concentration area, since the light emitting direction of each area of ​​the display device is usually the same, therefore, the light emitted from the field of view concentration area and falling into the viewer's line of sight has a large number and strong intensity, while the light emitted by the non-...

AI Technical Summary

Problems solved by technology

[0003] At present, for an existing display device, the display device has a fixed viewing field concentration area and a non-viewing field concentration area. Concentrated in the field of view concentration area, since the light emitting direction of each area of ​​the display device is usually the same, therefore, the light emitted from the field of view concentration area and falling into the viewer's line of sight has a large number and strong intensity, while the light emitted by the non-view field concentration area The light emitted from the concentrated area of ​​the field and falling into the viewer's line of sight has less light and its intensity is weaker. In the picture seen by the viewer, the brightness of the area corresponding to the concentrated area of ​​the field of view is higher than that corresponding to the area not concentrated in the field of view. The brightness of the area of ​​the area, that is, the brightness uniformity of the picture viewed by the viewer is poor, thus bringing a bad viewing experience to the viewer

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