Quantum dot light-emitting device packaging piece, backlight module and liquid crystal display device

A technology of quantum dot light-emitting and light-emitting devices, which is applied in optics, electrical components, nonlinear optics, etc., can solve the problems of inconsistent color of emitted light and small light-emitting angle, avoiding local color cast, large light-emitting angle, and uniform intensity. Effect

Active Publication Date: 2016-11-09
HISENSE VISUAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention provides a quantum dot light source device, a backlight module and a liquid crystal display device, so as to overcome the problems in the related art that the color of the emitted light at different positions of the quantum dot light source device is inconsistent and the light output angle is small

Method used

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  • Quantum dot light-emitting device packaging piece, backlight module and liquid crystal display device
  • Quantum dot light-emitting device packaging piece, backlight module and liquid crystal display device
  • Quantum dot light-emitting device packaging piece, backlight module and liquid crystal display device

Examples

Experimental program
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Effect test

Embodiment 1

[0034] image 3 A schematic structural diagram of a quantum dot light-emitting device package is provided for Embodiment 1 of the present invention, as shown in image 3 As shown, a quantum dot light-emitting device package 500 can be used as a light source for a backlight in a backlight module, and can be used alone as a lighting source, including:

[0035] The circuit board 51 is arranged to provide a power circuit for the quantum dot light emitting device package 500 .

[0036] The light emitting device 52 is arranged on the circuit board 51 to generate excitation light. Wherein, the light emitting device 52 may be a light emitting diode (LED) chip, such as a GaN-based LED chip that emits blue light. And the wavelength conversion layer 54 and the diffusion particle layer 53 are packaged around the light emitting device 52 .

[0037] The wavelength conversion layer 54 is formed on the periphery of the light emitting device 52, and the shortest distance between the wavelen...

Embodiment 2

[0054] Figure 4 A schematic structural diagram of a quantum dot light-emitting device package is provided in Embodiment 2 of the present invention, as shown in Figure 4 As shown, a quantum dot light-emitting device package 600 can be used as a light source for a backlight source in a backlight module, and can be used alone as a lighting source.

[0055] The quantum dot light-emitting device package 600 provided in the second embodiment includes: the circuit board 61 and the light-emitting device 62 are the same as those in the first embodiment, and will not be repeated here.

[0056] The quantum dot light emitting device package 600 further includes:

[0057] The sealing member 65 is a lens whose inner and outer surfaces form arc surfaces, the outer surface protruding outward is the light-emitting surface, the inner surface relative to the outer surface is concave, the inner surface is the light-incident surface, and a lens is formed between the inner surface and the outer ...

Embodiment 3

[0062] The third embodiment provides a direct type backlight module, which uses a quantum dot light source device to provide a light source.

[0063] Figure 5 It is a structural schematic diagram of a direct type backlight module in the third embodiment, as Figure 5 As shown, the direct type backlight module 10 includes:

[0064] The fixing part 12 is used for assembling the direct type backlight module 10 together, such as connecting parts such as a backplane and a plastic frame.

[0065] The quantum dot light source device 11 is arranged on the fixing part 12 and is located directly below the direct type backlight module 10. The quantum dot light source device 11 is the quantum dot light emitting device package 500 in the first embodiment or the quantum dot light emitting device in the second embodiment package 600 .

[0066] The homogenizing optical component 13 is used for homogenizing the light source provided by the quantum dot light source device 11 .

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Abstract

The invention provides a quantum dot light-emitting device packaging piece, a backlight module and a liquid crystal display device. A wavelength conversion layer is formed on the periphery of a light-emitting device, exciting light emitted by the light-emitting device can be produced into wavelength conversion light, a diffusion particle layer is formed on the side of the inner surface of the wavelength conversion layer, a sealing component is formed on the surface of the wavelength conversion layer and is used for sealing the wavelength conversion layer, and the problem that the colors of emergent rays at different positions of a quantum dot light source device in related technologies are difference is overcome.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a quantum dot light-emitting device package, a backlight module and a liquid crystal display device. Background technique [0002] A liquid crystal display device is composed of a liquid crystal panel, a mechanism frame, optical components, and some circuit boards. Since the liquid crystal itself does not emit light, some backlight sources need to be configured to display the picture. Wherein, the backlight module is used to provide a backlight with uniform brightness and distribution for the liquid crystal display device, so that the liquid crystal display device can display images normally. [0003] In order to realize the high color gamut backlight, quantum dot technology can be used to realize the high color gamut backlight of 100% and above NTSC. Among them, quantum dots are semiconductor nanocrystals of 10nm and smaller, which can produce quantum confinement effects. Qua...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/50H01L33/58G02F1/13357
CPCG02F1/133606G02F1/133611G02F1/133614H01L33/505H01L33/507H01L33/58
Inventor 邱婧雯刘振国高上
Owner HISENSE VISUAL TECH CO LTD
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