Array substrate and manufacturing method thereof and 3D (three-dimensional) display device

Abstract

The invention relates to the technical field of display and discloses an array substrate. The array substrate comprises a substrate and a pixel array layer located on the substrate, and also comprises a grating layer which is formed by a plurality of light blocking strips spaced at a preset distance and is used for 3D display. The grating layer is located at one side of the pixel array layer, which is back on to the substrate, or located at one side of the substrate, which faces the pixel array layer, or located at one side of the substrate, which is back on to the pixel array layer; the light blocking strips are used for reflecting light rays irradiated to the pixel array layer through the substrate. According to the array substrate disclosed by the invention, the grating layer is arranged at one side of the array substrate, which is back on to the pixel array layer, and the light blocking strips of the grating layer can be used for reflecting the light rays irradiated to the pixel array layer through the substrate. When display is performed, the light which is emitted from a backlight source and does not transmit the grating layer is reflected to the backlight source, and as the backlight source is usually provided with a light guide plate for the light to be diffused, and the light reflected to the backlight source is reflected again by the light guide plate to transmit the grating layer, the display brightness is improved.

Description

technical field [0001] The present invention relates to the technical field of 3D display, in particular to an array substrate, a manufacturing method thereof, and a 3D display device. Background technique [0002] At present, the relatively mature grating naked-eye 3D technology has a basic structure of attaching a grating layer outside the upper polarizer of the display screen, through which the light emitted by the pixels in the display screen is respectively output to the left and right eyes of the viewer. , resulting in a stereoscopic effect. The structure of the existing naked-eye 3D display device is as follows: figure 1 and figure 2 as shown, figure 1 The display device shown in includes a display screen formed by an upper polarizer 1 positioned above a color filter substrate 2, a lower polarizer 4 positioned below an array substrate, and a pair of a color filter substrate 2 and an array substrate 3. The color filter substrate 2 Between the liquid crystal layer ...

AI Technical Summary

Problems solved by technology

[0004] (1) Due to the addition of the grating substrate, the transmittance of light is low, and the brightness of the display device is low. At the same time, due to the existence of the grating substrate, the overall thickness of the display device increases;

[0005] (2) The grating area needs to be aligned with the pixel area. In the manufacturing process, it is difficult to align the grating substrate with the grating layer and the display screen, and the yield rate is low. At the same time, the pixel alignment accuracy of the grating and the array substrate is also low. It will greatly affect the display effect of the display device; in addition, a special alignment and bonding production process is required, so the cost of the display device is relatively high;

[0006] (3) The grating will block part of the light and impermeable to the display device, resulting in dim brightness of the entire display device

In this solution, only the grating substrate is reduced, and the grating layer 6 is made between the color filter substrate 2 and the upper polarizer 1, which can solve the above-mentioned problems (1) and (2), but in this structure, the entire display The brightness of the device still cannot be improved

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