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 first single optical axis optical film layer and a second single optical axis optical film layer, the first single optical axis optical film layer includes a plate-shaped part and a plurality of refraction parts, and the plate-shaped part It is arranged on the reflective grating film layer, and a plurality of refraction parts are formed on the side of the plate-shaped part away from the reflective grating film layer. On the side of the shaped part close to the refraction part, a plurality of refraction parts are accommodated in the second single optical axis optical film layer, and the ordinary light refractive index of the second single optical axis optical film layer is smaller than that of the first single optical axis optical film layer. Ordinary light refraction index. The above 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 1 Switching, plane switching) liquid crystal panels, etc. Compared with IPS liquid crystal panels, VA type liquid crystal panels have the advantages of higher production efficiency and lower manufacturing cost, but in terms of optical properties, there are more obvious optical property defects compared with IPS liquid crystal panels. In particular, large-size panels require larger viewing angles for commercial applications. The brightness of VA-type liquid crystal panels rapidly saturates with voltage at large viewing angles, resulting in a serious deterioration in viewing angle image quality contrast and color shift compared to s...

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 1 Switching, plane switching) liquid crystal panels, etc. Compared with IPS liquid crystal panels, VA type liquid crystal panels have the advantages of higher production efficiency and lower manufacturing cost, but in terms of optical properties, there are more obvious optical property defects compared with IPS liquid crystal panels. In particular, large-size panels require larger viewing angles for commercial applications. The brightness of VA-type liquid crystal panels rapidly saturates with voltage at large viewing angles, resulting in a serious deterioration in viewing angle image quality contrast and color shift compared to square-view image quality, resulting in color shift. The problem

[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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