Optical composite films and display panels

Abstract

The invention relates to an optical composite film and a display panel. An optical composite film includes a reflective grating film layer, a single optical axis optical film layer and a base layer, the single optical axis optical film layer includes a plate-shaped part and a plurality of refraction parts, the plate-shaped part is laminated on the reflective grating film layer, and a plurality of The refraction part is formed on the side of the plate-shaped part away from the reflective grating film layer, and the multiple refraction parts are arcuate columns or square prisms; the base layer is stacked on the side of the plate-shaped part close to the refraction part, and the multiple refraction parts are accommodated in In the base layer, the refractive index of the base layer is smaller than the extraordinary light refractive index of the single-axis optical film layer. The above-mentioned optical composite film can not only improve the large viewing angle deflection of the display panel, but also make the thickness of the display panel thinner.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an optical composite film and a display panel. Background technique [0002] The current large-size LCD (Liquid Crystal Display, liquid crystal display) panels include VA (Vertical Alignment, vertical alignment) liquid crystal panels and IPS (In-Plane Switching, in-plane switching) liquid crystal panels, etc. Compared with IPS liquid crystal panels, VA-type liquid crystal panels have more High production efficiency and low manufacturing cost have advantages, but compared with IPS liquid crystal panels, there are obvious optical property defects in optical properties, especially large-size panels require a larger viewing angle for commercial applications, and VA-type liquid crystal panels are used in The brightness of the large viewing angle is rapidly saturated with the voltage, which causes the image quality contrast and color shift of the viewing angle to deteriorate more seri...

AI Technical Summary

Problems solved by technology

[0002] The current large-size LCD (Liquid Crystal Display, liquid crystal display) panels include VA (Vertical Alignment, vertical alignment) liquid crystal panels and IPS (In-Plane Switching, in-plane switching) liquid crystal panels, etc. Compared with IPS liquid crystal panels, VA-type liquid crystal panels have more High production efficiency and low manufacturing cost have advantages, but compared with IPS liquid crystal panels, there are obvious optical property defects in optical properties, especially large-size panels require a larger viewing angle for commercial applications, and VA-type liquid crystal panels are used in The brightness of the large viewing angle is rapidly saturated 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 problem of color shift

[0003] In addition, the structure of the current LCD display panel is generally a laminated structure, that is, polarizers are attached above and below the liquid crystal layer. However, the thickness of a single layer of the current polarizer is about 200 μm, and the total of the upper and lower layers of polarizers requires 400 μm. thicker

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