Color film substrate, preparing method of color film substrate and display device

Abstract

The invention provides a color film substrate, a preparing method of the color film substrate and a display device. The color film substrate comprises a color filter. The color filter comprises a plurality of color filtering units. Each color filtering unit comprises a plurality of sub-color filters which allow light with different colors to pass, each sub-color filter comprises a photonic crystal and a photoluminescence material arranged in the photonic crystal, and the photoluminescence materials correspond to the sub-color filters in color. Thus, the size of the sub-color filters can be reduced, and a high resolution rate can be achieved; besides, the photonic crystals can filter out light with other color wavelengths, light passing the photonic crystals can excite the photoluminescence materials in the photonic crystals, and the luminous efficiency can be effectively improved; furthermore, the sub-color filters allow light with different colors to pass respectively, and thus the display effect of the display device is effectively achieved.

Description

technical field [0001] The present invention relates to the field of display technology, in particular, to a color filter substrate, a preparation method thereof, and a display device. Background technique [0002] Titanium dioxide quantum dots are generally used in existing display panels to prepare color filter layers. In the titanium dioxide system, color changes are generally achieved by controlling the composition of CsPbX (X=Cl, Br, I), such as CsPbBr 3 Green-emitting, CsPbI 3 It emits red light, while CsPbX (X=Cl, Br, I) has a very limited size variable range, especially in the small size (<8nm) strong quantum confinement range. Moreover, a strong backlight source is required to meet the brightness requirements of the display panel, and the light utilization rate is low. [0003] Therefore, the related research on the display panel needs to be in-depth. Contents of the invention [0004] The present invention aims to solve one of the technical problems in the ...

AI Technical Summary

Problems solved by technology

[0002] Titanium dioxide quantum dots are generally used in existing display panels to prepare color filter layers. In the titanium dioxide system, color changes are generally achieved by controlling the composition of CsPbX (X=Cl, Br, I), such as CsPbBr 3 Green-emitting, CsPbI 3 Emits red light, while CsPbX (X=Cl, Br, I) has a very limited size variable range, especially in the small size (<8nm) strong quantum confinement range

Moreover, a strong backlight source is needed to meet the brightness requirements of the display panel, and the light utilization rate is low.

[0003] Therefore, the relevant research on display panels needs to be further deepened.

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