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LED backlight module, manufacturing method thereof and display screen

A backlight module and LED chip technology, which is applied in optics, nonlinear optics, instruments, etc., can solve the problems of poor light uniformity and high cost, and achieve the effect of improving display effect, reducing the number of LED chips, and uniform light output

Pending Publication Date: 2022-04-29
SHENZHEN JUFEI OPTOELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the deficiencies of the above-mentioned related technologies, the object of the present invention is to provide an LED backlight module and its manufacturing method, and a display screen, aiming to solve the problems of poor light uniformity and high cost in the existing backlight module

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  • LED backlight module, manufacturing method thereof and display screen
  • LED backlight module, manufacturing method thereof and display screen
  • LED backlight module, manufacturing method thereof and display screen

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Embodiment Construction

[0048] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0049]Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field of the invention. The terminology used herein in the description of the present invention is only for the purpose of describing specific embodiments, and is not intended to limit the present invention.

[0050] In the related art, the backlight module has the problems of poor light uniformi...

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Abstract

According to the LED backlight module and the manufacturing method thereof and the display screen, the top face and the side face of a carrier of a light-emitting unit adopted by the LED backlight module can transmit light, so that the light-emitting unit can emit light from multiple directions and multiple faces, the light-emitting angle and the light-emitting effect of the light-emitting unit can be greatly improved, and the light-emitting effect of the light-emitting unit can be greatly improved under the same light-emitting area of the front face of a circuit board. A smaller number of light-emitting units can be arranged, so that the cost of the LED backlight module is reduced; the light emitting normal direction of the main light emitting face of the light emitting unit is perpendicular to the normal direction of the circuit board, the light emitting unit can emit light from multiple directions and multiple faces, the light emitted by the light emitting unit is emitted from the light emitting face of the LED backlight module after passing through the surface of the circuit board and space light uniformization, the overall light emitting of the LED backlight module is more uniform, and the display effect of the LED backlight module is improved.

Description

technical field [0001] The invention relates to the field of lighting, in particular to an LED backlight module, a manufacturing method thereof, and a display screen. Background technique [0002] Ultra-high-definition video is the future development direction. Mini LED and Micro LED can be used as backlight and direct display. As the backlight of LCD (Liquid Crystal Display, liquid crystal display), Mini LED can be controlled regionally, which can greatly improve the peak brightness, contrast and image restoration of the LCD screen, and can also reduce power consumption. [0003] The application scenarios of Mini LED are divided into two technical routes: POB (package on Board) blue light and COB (chip on board) blue light. At present, whether it is a POB or a COB solution, the normal direction of light emission of the LED chip of the backlight module is perpendicular to the PCB (Printed Circuit Board, printed circuit board) mounting surface of the backlight module. The l...

Claims

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Application Information

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IPC IPC(8): H01L25/075H01L33/62H01L33/64H01L33/54G02F1/13357
CPCH01L25/0753H01L33/62H01L33/64H01L33/54G02F1/133603G02F1/133614H01L2933/0033
Inventor 孙平如谭青青
Owner SHENZHEN JUFEI OPTOELECTRONICS