LCD Monitor

Abstract

The present invention provides a liquid crystal display. By arranging a color light-emitting layer mainly made of quantum dot materials in the liquid crystal display panel, the color gamut performance of the liquid crystal display is improved; The light emitted by the colored light-emitting layer can pass through the unidirectional light-guiding film, but the external light is blocked and reflected by the unidirectional light-guiding film, and cannot be transmitted to the colored light-emitting layer to stimulate the quantum dots to emit light, thereby avoiding the traditional quantum dots. The display is easily stimulated by external light to cause a decrease in contrast or even a color shift, which improves the display quality of the liquid crystal display.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display. Background technique [0002] A liquid crystal display (LCD, Liquid Crystal Display) has many advantages such as a thin body, power saving, and no radiation, and has been widely used. Such as: LCD TV, mobile phone, personal digital assistant (PDA), digital camera, computer screen or laptop screen, etc. Generally, a liquid crystal display device includes a housing, a liquid crystal display panel disposed in the housing, and a backlight module disposed in the housing. Among them, the structure of the liquid crystal display panel is mainly composed of a thin film transistor array substrate (Thin Film Transistor Array Substrate, TFT Array Substrate), a color filter substrate (Color Filter, CF), and a liquid crystal layer ( Liquid Crystal Layer), its working principle is to control the rotation of liquid crystal molecules in the liquid crysta...

AI Technical Summary

Problems solved by technology

[0004] Quantum dot materials have the advantages of controllable luminous wavelength and narrow half-height width. An existing application technology of quantum dot materials uses colored luminescent layers made of quantum dots with different luminous wavelengths to replace the color filters in current liquid crystal display devices. The chip can solve the defects of the blue LED plus yellow phosphor in the spectral distribution and improve the color gamut of the display; however, since the color light-emitting layer is generally set near the outside of the liquid crystal display, the external natural light will excite the quantum dots , so the contrast ratio of the display decreases in a bright environment, and there may be a phenomenon of color cast

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