Optical Films and Display Devices

Abstract

The present application relates to an optical film layer and a display device. The optical film layer comprises: a first single optical axis optical layer, a plurality of grooves being formed on one side of the first single optical axis optical layer; a second single optical axis optical layer comprising a plate-shaped part and a plurality of protrusion structures matching the grooves in shape and size attached on one side of the plate-shaped part, the extraordinary refractive index of the second single optical axis optical layer being greater than the ordinary refractive index of the first single optical axis optical layer; and a first grating layer laminated on one side of the second single optical axis optical layer away from the first single optical axis optical layer or embedded on one side of the second single optical axis optical layer away from the first single optical axis optical layer.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an optical film layer and a display device. Background technique [0002] The current large-size LCD panels usually use VA (Vertical Alignment, vertical alignment) LCD panels or IPS (In-Plane Switching, in-plane switching) LCD panels. Compared with IPS LCD panels, VA-type LCD panels have higher production efficiency and low The manufacturing cost is superior, but the optical properties have obvious optical property defects compared with IPS liquid crystal panels, especially large-size panels require larger viewing angles for commercial applications. For example, the VA-type liquid crystal panel driving at a large viewing angle rapidly saturates the brightness with the voltage, which causes the image quality contrast and color shift of the viewing angle to deteriorate seriously compared with the image quality of the front view, resulting in the angular shift of the viewing angle....

AI Technical Summary

Problems solved by technology

[0002] The current large-size LCD panels usually use VA (Vertical Alignment) LCD panels or IPS (In-Plane Switching, in-plane switching) LCD panels. Compared with IPS LCD panels, VA-type LCD panels have higher production efficiency and low Advantages in manufacturing cost, but in terms of optical properties, compared with IPS liquid crystal panels, there are more obvious defects in optical properties, especially for large-size panels that require a larger viewing angle for commercial applications.

For example, the VA-type liquid crystal panel drives in a large viewing angle and the brightness rapidly saturates with the voltage, which causes the image quality contrast and color shift of the viewing angle to deteriorate seriously compared with the image quality of the front view, resulting in angular shift.

[0003] Therefore, the existing VA-type liquid crystal panel has the problem of image quality contrast and color shift at large viewing angles, which is seriously worse than that of the front view image quality, resulting in the problem of viewing angle shift.

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