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Liquid crystal display

A liquid crystal display and liquid crystal display panel technology, applied in the direction of instruments, nonlinear optics, optics, etc., can solve problems such as color shift and display contrast reduction, achieve the effect of improving color gamut performance, avoiding contrast reduction, and improving display quality

Active Publication Date: 2015-11-25
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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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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Embodiment Construction

[0026] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0027] see Figure 1-2 , the present invention provides a liquid crystal display, which includes a liquid crystal display panel 200 and a backlight 100 / 100'; a liquid crystal layer 3 between the lower substrates 1;

[0028] The upper substrate 2 includes a first substrate 24, a colored light-emitting layer 22 disposed above the first substrate 24, a unidirectional light-guiding film 21 disposed above the colored light-emitting layer 22, and a light-guiding film 21 disposed above the first substrate 24. The lower upper polarizer 25, and the first alignment film 26 arranged below the upper polarizer 25;

[0029] The lower substrate 1 includes a second substrate 12, a lower polarizer 11 disposed below the second substrate 12, a thin film transi...

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Abstract

The invention provides a liquid crystal display. Due to the fact that a colored light-emitting layer mainly made from quantum dot materials is arranged in a liquid crystal display panel, the color gamut expression of the liquid crystal display is improved. Meanwhile, due to the fact that a one-way light guiding thin film is arranged on the light outgoing side of the liquid crystal display panel, light emitted by the colored light-emitting layer can transmit the one-way light guiding thin film to be spread outwards, but outside light is blocked by the one-way light guiding thin film to be reflected, cannot be spread to the colored light-emitting layer and cannot excite quantum dots to emit light, and therefore the problem that a traditional quantum dot display is prone to being exited by outside light, the contrast ratio of the traditional quantum dot display is lowered, and even color cast is caused is avoided, and the display quality of the liquid crystal display is improved.

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 device (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 (ThinFilmTransistorArraySubstrate, TFTArraySubstrate), a color filter substrate (ColorFilter, CF), and a liquid crystal layer (LiquidCrystalLayer) arranged between the two substrates. The principle is to control the rotation of the liquid crystal m...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02F1/1335
CPCG02F1/133514G02F1/133605G02F1/133606G02F1/133617G02F1/13362G02F1/133607G02F1/133614G02F1/133509G02F1/133524G02F2202/36G02F1/133531G02F1/133512G02F1/133528G02F1/133621G02F1/1368G02F2203/01
Inventor 梁宇恒
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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