Quantum dot fluorescent screen

Abstract

The invention relates to a quantum dot fluorescent screen. The quantum dot fluorescent screen comprises a frame, a liquid crystal module and a backlight module, wherein the liquid crystal module and the backlight module are fixedly mounted in the frame; the backlight module is mounted on the back surface of the liquid crystal module and comprises a micro-nano-structured diffusion film, an upper brightness enhancement film, a lower brightness enhancement film, a quantum dot composite diffusion film, a light guiding plate and a total reflection film which are successively arranged from top to bottom; the light guiding plate is in the shape of a frustum; a blue-violet LED bulb strip is arranged on a large side surface of the light guiding plate; and a reflecting plate is arranged on the outer side of the blue-violet LED bulb strip. The quantum dot fluorescent screen has the advantages that while having a quantum dot screen color gamut, the final quantum dot fluorescent screen further has diffusion and brightness enhancement optical functions, namely, a whole display panel has wide color gamut, the color expressive force is good, and the display property of a liquid crystal display panel is improved.

Description

technical field [0001] The invention belongs to the field of liquid crystal displays, in particular to a quantum dot fluorescent screen. Background technique [0002] At present, the mainstream LCD panels mainly have two backlight modes, one is CCFL and the other is LED. The advantage of CCFL is good color performance, but the disadvantage is high power consumption; the advantage of LED is small size, low power consumption, can take into account thin and light and high brightness, the disadvantage is that the color performance is worse than CCFL. [0003] In view of the above problems, people are committed to developing quantum dot fluorescent screens with wide color gamut, high color purity, and good color expression. After searching, the patent CN 105629578 A discloses a quantum dot fluorescent screen, including a frame, a liquid crystal module and a backlight module fixedly installed in the frame, the backlight module is installed on the back of the liquid crystal module...

AI Technical Summary

Problems solved by technology

The advantage of CCFL is good color performance, but the disadvantage is high power consumption; the advantage of LED is small size, low power consumption, can take into account thin and light and high brightness, the disadvantage is that the color performance is worse than CCFL

[0004] However, the quantum dot fluorescent screen of the above patent still has certain problems: although the quantum dot fluorescent screen has the characteristics of quantum dot materials, it does not have the optical function of diffusion and brightness enhancement

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