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Light emitting device, backlight module and liquid crystal display device

A backlight module and light-emitting device technology, applied in optics, nonlinear optics, instruments, etc., can solve the problems of low white light brightness, light intensity loss, and affecting the performance of liquid crystal display devices, etc., and achieve high brightness and high color saturation Effect

Active Publication Date: 2015-04-01
SHANGHAI AVIC OPTOELECTRONICS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the process of converting part of the blue light into red light and green light by the quantum film 50 will cause a certain loss of light intensity, so that the brightness of the white light output by the quantum film 50 is low, which affects the performance of the liquid crystal display device.

Method used

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  • Light emitting device, backlight module and liquid crystal display device
  • Light emitting device, backlight module and liquid crystal display device
  • Light emitting device, backlight module and liquid crystal display device

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Embodiment Construction

[0038] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0039] As described in the background art, although the backlight module using the quantum film in the prior art can improve the color saturation of the liquid crystal display device, it will make the display brightness poor.

[0040] To solve the above problems, embodiments of the present invention provide a light emitting device, a backlight module, and a liquid crystal display device, which improve the brightness of the liquid crystal display device while improving the color saturation of the liquid crystal display device.

[0041] In the light-emitting device of the present invention, the LED light-emitting chip is used to emit light, and the phosphor powder can be excited by part of the light emitted by the LED light-emitting chip,...

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Abstract

The invention discloses a light emitting device, a backlight module and a liquid crystal display device. The light emitting device adopts fluorescent powder excited luminescence and quantum spot luminescence at the same time to emit white light. Compared with a light emitting device only adopting quantum spot luminescence in the prior art, the brightness of the emitted light is higher, and high color saturation can be provided for the display device. The backlight module adopts fluorescent powder excited luminescence and quantum spot luminescence at the same time to emit white light. Compared with a backlight module only adopting quantum spot luminescence in the prior art, the brightness of the emitted light is higher, and high color saturation can be provided for the display device. The liquid crystal display device comprises the backlight module and has better display effect.

Description

technical field [0001] The invention relates to the field of liquid crystal display, in particular to a light emitting device, a backlight module and a liquid crystal display device. Background technique [0002] Liquid crystal display devices are widely used in various fields due to their small size, light weight, and low radiation. [0003] A liquid crystal display device is generally composed of several parts such as a liquid crystal display panel, a backlight module, and a driving circuit board. Wherein, the backlight module is located under the liquid crystal display panel, and outputs white light from bottom to top to the liquid crystal display panel. There are multiple liquid crystal light valves on the liquid crystal display panel, which can adjust the light passing through the liquid crystal panel by controlling the rotation of liquid crystal molecules, and at the same time, cooperate with the color filter substrate to achieve the purpose of color display. [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357H01L33/50
CPCG02F1/133609G02F1/133611G02F1/133614H01L33/507
Inventor 苏世虎
Owner SHANGHAI AVIC OPTOELECTRONICS
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