Colour filter layer, colour film substrate and display device

A technology of color filter layer and display device, which is applied in the direction of optical filter, optics, nano-optics, etc., can solve the problem of low light utilization rate of color filter layer, improve display effect, improve light utilization rate and display Brightness, energy-saving effect

Inactive Publication Date: 2013-12-25
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low light utilization rate of the color filter layer in the prior art, and provide a color filter layer with high light utilization rate

Method used

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  • Colour filter layer, colour film substrate and display device
  • Colour filter layer, colour film substrate and display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] This embodiment provides a color filter layer, such as figure 1 As shown, the color filter layer includes a filter film 2 , and a light conversion material layer 3 is arranged on the surface of the light incident side of the filter film 2 . The light conversion material layer 3 is used to convert the incident light into light having the same spectral properties as the filter film 2, so as to improve the utilization rate of the incident light 4 .

[0030] The light conversion material layer 3 includes quantum dots and / or up-conversion materials, and the corresponding composition of the light conversion material layer 3 can be selected according to the spectral properties of the filter film 2 .

[0031] In this embodiment, three filter films 2 (R, G, B) are used as an example for introduction, such as figure 1 Shown:

[0032] 1) Set an up-conversion material on the surface of the light-incident side of the blue filter film (B).

[0033] Among them, the up-conversion ma...

Embodiment 2

[0053] Such as figure 2 As shown, the present embodiment provides a color filter substrate, the color filter substrate includes color filter layers of various colors and arranged at different positions, the color filter layer includes a filter film 2, and the filter The film 2 is disposed on the substrate 1 , and a light conversion material layer 3 is disposed on the surface of the light incident side of the filter film 2 . The light conversion material layer 3 is used to convert the incident light into light having the same spectral properties as the filter film 2, so as to improve the utilization rate of the incident light 4 .

[0054] The light conversion material layer 3 includes quantum dots and / or up-conversion materials, and the corresponding composition of the light conversion material layer 3 can be selected according to the spectral properties of the filter film 2 .

[0055] In this embodiment, the color filter substrate usually includes three filter films 2 (R, G,...

Embodiment 3

[0076] This embodiment provides a display device, which may be a liquid crystal display device, and the liquid crystal display device includes the above-mentioned color filter substrate. For example, the liquid crystal display device is mainly composed of a backlight source, a liquid crystal screen (panel), structural components (such as a frame, a back plate, etc.), a driving circuit, and the like.

[0077] Certainly, the display device may also be other types such as an OLED (Organic Light Emitting Diode) display device.

[0078] In the display device of this embodiment, because the color filter substrate includes a light conversion material layer, it can convert light of other frequencies in the incident light into light with the same spectral properties as each filter film, and can achieve the effect of improving light utilization and display brightness. , effectively save energy and improve display effect.

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Abstract

The invention provides a colour filter layer, a colour film substrate comprising the colour filter layer and a display device comprising the colour film substrate, belongs to the display technical field and can solve the problem that light utilization rate of the colour film substrate is low in the prior art. The colour filter layer comprises a filter film and a light conversion material layer arranged at an incident side of the filter film. The colour filter layer is provided with the light conversion material layer, so that lights at other frequencies in incident lights can be converted into lights consistent with spectral properties of each filter film, the effects of increasing light utilization rate and improving display brightness are achieved, energy is effectively saved, and a display effect is effectively improved.

Description

technical field [0001] The invention belongs to the field of display technology, and in particular relates to a color filter layer, a color filter substrate including the color filter layer, and a display device including the color filter substrate. Background technique [0002] In the display device, the incident light can be effectively filtered through the color filter to achieve the purpose of color display. After the incident mixed color light is transmitted through the three filter films (such as R, G, B) of the color filter substrate All of them will be lost. For example, when passing through the red filter film (R), only red light can pass through, and other light is blocked, resulting in a large degree of attenuation of incident light, and a lot of incident light is wasted. How to effectively The use of incident light has become a research hotspot. [0003] Quantum dots, also known as nanocrystals, are nanoparticles composed of compounds of II-VI or III-V elements....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/20G02F1/1335H01L27/32H01L51/52
CPCG02B5/201B82Y20/00Y10S977/774H10K59/38G02B5/22
Inventor 董明吴洪江冯贺肖宇袁静
Owner BOE TECH GRP CO LTD
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