Optical composite film and display panel

Abstract

The invention relates to an optical composite film and a display panel. The optical composite film comprises a reflection grating film layer, a single-optical-axis optical film layer and a substrate layer; the single-optical-axis optical film layer comprises a plate-shaped part and a plurality of refraction parts; the plate-shaped part is laminated on the reflection grating film layer; the refraction parts are formed on one side, away from the reflection grating film layer, of the plate-shaped part; the refraction parts are arc surface columns or quadrangular prisms; the non-ordinary refractive index of the single-optical-axis optical film layer is smaller than the ordinary refractive index of the single-optical-axis optical film layer; the substrate layer is laminated on one side, close to the refraction parts, of the plate-shaped part; the refraction parts are contained in the substrate layer; and the refractive index of the substrate layer is smaller than the ordinary refractive index of the single-optical-axis optical film layer. The optical composite film not only can improve the large-view color cast of the display panel, but also can enable the display panel to be relativelythin.

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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