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LCD Monitor

A liquid crystal display and liquid crystal display panel technology, which is applied to instruments, nonlinear optics, optics, etc., can solve the problems of increasing light conversion efficiency, affecting light conversion efficiency, and increasing the propagation path of backlight, so as to improve the utilization efficiency of backlight and improve light The effect of conversion efficiency

Active Publication Date: 2020-07-28
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

After the scattering particles are added, since it will increase the possibility of the propagation direction of the excitation light, it can break the original optical path of total reflection, so that the excitation light is transmitted; on the other hand, the scattering particles also have a scattering effect on the incident backlight, which increases the The propagation path of the backlight increases the light conversion efficiency; micron-sized spherical SiO 2 Particles have a strong light scattering effect, so they are often used as scattering particles in QDfilm and QD CF; however, spherical SiO 2 When the particles scatter light, they are often accompanied by relatively strong specular reflection, which affects the light conversion efficiency.

Method used

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preparation example Construction

[0040] Specifically, the pumice-like TiO 2 The preparation method of particle 60 comprises:

[0041] Step 1, provide powdered anatase material (TiO 2 ), polymer balls and deionized water, mix anatase material, polymer balls and deionized water together, stir and disperse at a temperature above 60°C for more than 2 hours, and then dry to remove moisture to obtain polymer balls / Anatase core-shell structure material.

[0042] Specifically, in the step 1, the method of mixing the anatase material, polymer balls and deionized water is: adding the anatase material and polymer balls into deionized water for dispersion and mixing.

[0043] Specifically, in the step 1, the mass ratio of the mixed anatase material, polymer balls and deionized water is: anatase material: polymer balls: deionized water = 5-10: 1-2: 100, preferably 5:1:100.

[0044] Step 2. Calcining the polymer sphere / anatase core-shell structure material in the air at a high temperature above 900°C for more than 1 h...

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PUM

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Abstract

The invention provides a liquid crystal display. The liquid crystal display is provided with a quantum dot film containing floatstone-like TiO<2> particles, the quantum dot film can be used as an independent optical film and arranged between a backlight module and a liquid crystal display panel, the quantum dot film can also be used as part of a color filter to be arranged in the color filter, andthe floatstone-like TiO<2> particles have the scattering function, so that the light conversion efficiency of quantum dots is improved, and the backlight utilization efficiency of the liquid crystaldisplay is further improved; moreover, through arrangement of a band-pass reflective film on the light-in side of the quantum dot film, the part, opposite to the incidence direction of backlight, in the exciting light of the quantum dots can be utilized, and the backlight utilization efficiency is further improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a liquid crystal display. Background technique [0002] With the development of display technology, liquid crystal displays (Liquid Crystal Display, LCD) and other flat display devices are widely used in mobile phones, TVs, personal digital devices due to their advantages of high image quality, power saving, thin body, and no radiation. Various consumer electronic products such as assistants, digital cameras, notebook computers, and desktop computers have become the mainstream of display devices. [0003] Most of the liquid crystal displays currently on the market are backlight liquid crystal displays, which include a casing, a liquid crystal display panel disposed in the casing, and a backlight module (Backlight Module) disposed in the casing. [0004] The traditional liquid crystal display panel is composed of a thin film transistor array substrate (Thin Film TransistorArray ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335
CPCG02F1/1335
Inventor 李吉
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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