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Wavelength conversion device, manufacturing method thereof and backlight source

A technology of wavelength conversion and manufacturing method, which is applied in the direction of electric solid-state devices, semiconductor devices, electrical components, etc., can solve the problems of short life of wavelength conversion devices and low effective utilization of LED light emission, and achieve good energy saving and reliability, and improve Effective utilization and the effect of eliminating optical crosstalk

Pending Publication Date: 2021-10-22
HEFEI INNOVATION RES INST BEIHANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a wavelength conversion device and its manufacturing method and backlight source, which can solve the problem of low effective utilization rate of LED luminescence caused by the need to set a light-blocking vinyl layer between LED chips of the existing LED display screen, and the wavelength The problem of short life of the conversion device

Method used

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  • Wavelength conversion device, manufacturing method thereof and backlight source
  • Wavelength conversion device, manufacturing method thereof and backlight source
  • Wavelength conversion device, manufacturing method thereof and backlight source

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Embodiment Construction

[0032] The present invention is described in detail below in conjunction with examples, but the present invention is not limited to these examples.

[0033] An embodiment of the present invention provides a wavelength conversion device, referring to Figure 1 to Figure 5 As shown, it includes a metal mesh plate 11; a plurality of through holes 12 are arranged in an array on the metal mesh plate 11, and the through holes 12 are used to place the light source 13; An encapsulation adhesive layer 14, a wavelength conversion layer 15 and a second encapsulation adhesive layer 16; the light source 13 is used to emit the light of the first waveband, and the light of the first waveband is generally blue light; the wavelength conversion layer 15 is used for converting the first waveband The light in the second waveband is converted into light in the second waveband, and the light in the second waveband is generally red light and / or green light.

[0034] Wherein, the metal mesh plate 11...

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Abstract

The invention discloses a wavelength conversion device, a manufacturing method of the wavelength conversion device and a backlight source, belongs to the technical field of display devices, and can solve the problems that the effective utilization rate of LED light emission is low and the service life of the wavelength conversion device is short due to the fact that a light blocking black adhesive layer needs to be arranged between LED chips of an existing LED display screen. The wavelength conversion device comprises a metal screen plate; a plurality of through holes are formed in the metal net plate in an array mode and used for containing light sources; a wavelength conversion layer is further arranged in the through hole and located on the light emitting side of the light source. The light source is used for emitting first-band light. The wavelength conversion layer is used for converting the light of the first wave band into the light of the second wave band. The method is used for full-color display.

Description

technical field [0001] The invention relates to a wavelength conversion device, a manufacturing method thereof, and a backlight source, and belongs to the technical field of display devices. Background technique [0002] With the continuous development of science and technology, display devices have appeared in all aspects of people's lives, and people have put forward higher and higher requirements for display effects of display devices. In recent years, LED full-color display technology has attracted widespread attention due to its advantages of high brightness, long life and large viewing angle. [0003] At present, there are two common technical solutions for mini-LED or micro-LED to achieve full-color display. One is to use RGB three-color LED chips as three sub-pixels in one pixel, and the other is to use three LED chips. The blue (B) LED chip is used as three sub-pixels in a pixel, and then the blue light emitted by two of the chips is converted into green light and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L33/50H01L33/48H01L25/16H01L25/075
CPCH01L33/502H01L33/48H01L25/0753H01L25/167
Inventor 王良吉李飞李劲柏泽龙周青超钟海政
Owner HEFEI INNOVATION RES INST BEIHANG UNIV
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