Display apparatus and its optical film preparation method

Abstract

The invention provides a display device and a manufacture method of the optical film of the display device. The display device at least comprises a light source and an optical film, wherein the light source is used for providing a first light beam to the optical film, and the optical film contains at least one coating. The coating includes a first surface and a second surface opposite to the first one, and is used for absorbing the first light beam through the first surface and emitting a second light beam under excitation to the outside through the second surface, wherein the intensity of the second light beam is larger than the intensity of the first light beam. The invention can overcome the disadvantage of overlarge thickness of a brightness enhancement film of the display panel in prior art, simplify the complex process of prior art, assist the backlight source in improving light emission intensity and improve the light utilization rate of the display device.

Description

technical field [0001] The invention relates to a display device and a manufacturing method thereof, in particular to an optical film applied in a display device and a manufacturing method thereof. Background technique [0002] In the current liquid crystal display device, there is usually a brightness enhancement film, and its main function is to improve the luminous brightness and efficiency of the liquid crystal display device. The brightness enhancement films of the prior art all use the backlight module as the light source. The principle is to add a reflective optical film to the backlight module of the prior art, so that part of the light generated by the backlight module can be recycled after secondary reflection. Further, the light utilization rate of the backlight module is improved. At present, the main common brightness enhancement films include prism type brightness enhancement film, reflective polarized brightness enhancement film, cholesteric liquid crystal re...

AI Technical Summary

Problems solved by technology

[0004] Although the above reflective polarized brightness enhancement film technology can achieve the effect of brightness enhancement, its structure and process are complicated. For example, its placement is limited to the setting between the backlight module and the polarizer, and usually must cooperate with the diffusion layer to lighten the optical brightness. The phenomenon of interference, especially the thickness of its structure is often as high as hundreds of microns, so it does not meet the development trend of increasingly thinner liquid crystal display devices

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