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Quantum dot fluorescent screen

A technology of quantum dots and fluorescent screens, applied in the field of liquid crystal displays, can solve the problems of poor color performance and high power consumption, and achieve the effects of good color expression, high color purity and easy assembly.

Inactive Publication Date: 2016-06-01
SHENZHEN YAXUNDA LCD DISPLAY EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The advantage of CCFL is good color performance, but the disadvantage is high power consumption; the advantage of LED is small size, low power consumption, can take into account thin and light and high brightness, the disadvantage is that the color performance is worse than CCFL

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] See figure 2 as shown, figure 2 It is a structural schematic diagram of the first embodiment of the quantum dot fluorescent screen of the present invention. The backlight module 20 in this embodiment is an edge-lit backlight module, which includes a quantum dot fluorescent module 22, a diffusion film 21 arranged on the top of the quantum dot fluorescent module 22, and a film under the quantum dot fluorescent module 22. Total reflection film 23.

[0027] In this embodiment, the quantum dot fluorescent module 22 is integrally formed, which includes a brightness enhancement film, a diffuser plate, a quantum dot fluorescent film and a light guide plate. The diffusion film is located above the brightness enhancement film, which is mainly used to diffuse the optical fiber and protect the brightness enhancement film; the brightness enhancement film includes an upper brightness enhancement film and a lower brightness enhancement film, which are used to increase brightness a...

Embodiment 2

[0031] See image 3 as shown, image 3 It is a structural schematic diagram of the second embodiment of the quantum dot fluorescent screen of the present invention. The backlight module 20 in this embodiment is an edge-lit backlight module, which includes a quantum dot fluorescent module 22, a diffusion film 21 arranged on the top of the quantum dot fluorescent module 22, and a film under the quantum dot fluorescent module 22. Total reflection film 23.

[0032] In this embodiment, the quantum dot fluorescent module 22 includes an upper brightness enhancement film 221 , a lower brightness enhancement film 222 , a diffuser plate 223 , a quantum dot fluorescent film 224 and a light guide plate 225 arranged sequentially from top to bottom. Among them, the diffusion film 21 is located above the upper brightness enhancement film 221, which is mainly used to diffuse the optical fiber and protect the brightness enhancement film; the lower brightness enhancement film 222 is arranged ...

Embodiment 3

[0036] See Figure 4 as shown, Figure 4 It is a structural schematic diagram of the third embodiment of the quantum dot fluorescent screen of the present invention. The backlight module 20 in this embodiment is a direct-type backlight module, which includes a quantum dot fluorescent module 22, a diffusion film 21 arranged above the quantum dot fluorescent module 22, and a full-body film arranged below the quantum dot fluorescent module 22. Reflective film 23.

[0037] In this embodiment, the quantum dot fluorescent module 22 is integrally formed, which includes a brightness enhancement film, a quantum dot fluorescent film and a diffusion plate. The diffusion film is located above the brightness enhancement film, which is mainly used to diffuse the optical fiber and protect the brightness enhancement film; the brightness enhancement film includes an upper brightness enhancement film and a lower brightness enhancement film, which are used to increase brightness and effectivel...

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Abstract

The invention discloses a quantum dot fluorescent screen. The quantum dot fluorescent screen comprises a frame, and a liquid crystal module and a backlight module which are fixedly mounted in the frame, wherein the backlight module is mounted on the back surface of the liquid crystal module and comprises a quantum dot fluorescent module, a diffusion film arranged above the quantum dot fluorescent module and a full-reflection film which is arranged under the quantum dot fluorescent module. According to the quantum dot fluorescent screen disclosed by the invention, a quantum dot fluorescent film is added into the liquid crystal module and red and green quantum dots in the quantum dot fluorescent film are stimulated through a blue-light LED chip, and blue light is converted into white light for constructing a white backlight source, so that a display panel has a relatively wide color gamut, relatively high color purity and relatively good color expression, and furthermore, the display property of the liquid crystal panel is improved. The quantum dot fluorescent film can be directly added into the liquid crystal module, so that the assembling is simple and convenient and an extra process flow is not increased; and furthermore, the quantum dot fluorescent screen can be also matched with side light type and straight down type backlight sources.

Description

Technical field: [0001] The invention relates to the field of liquid crystal displays, in particular to a quantum dot fluorescent screen. Background technique: [0002] At present, the mainstream LCD panels mainly have two backlight modes, one is CCFL and the other is LED. The advantage of CCFL is good color performance, but the disadvantage is high power consumption; the advantage of LED is small size, low power consumption, can take into account thin and light and high brightness, the disadvantage is that the color performance is worse than CCFL. Invention content: [0003] In view of the above problems, the object of the present invention is to provide a quantum dot fluorescent screen with wide color gamut, high color purity and good color expression. [0004] To achieve the above object, the present invention mainly adopts the following technical solutions: [0005] A quantum dot fluorescent screen, comprising a frame and a liquid crystal module fixedly installed in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357
CPCG02F1/1336G02F1/133614
Inventor 赵镇才韦正印赖俊江
Owner SHENZHEN YAXUNDA LCD DISPLAY EQUIP
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