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1. (WO2018077058) COB DISPLAY MODULE AND MANUFACTURING METHOD THEREFOR, AND LED DEVICE AND MANUFACTURING METHOD THEREFOR

Pub. No.:    WO/2018/077058    International Application No.:    PCT/CN2017/106468
Publication Date: Fri May 04 01:59:59 CEST 2018 International Filing Date: Wed Oct 18 01:59:59 CEST 2017
IPC: H01L 33/52
Applicants: FOSHAN NATIONSTAR OPTOELECTRONICS CO., LTD
佛山市国星光电股份有限公司
Inventors: LIU, Chuanbiao
刘传标
LIU, Xiaofeng
刘晓锋
GU, Feng
顾峰
QIN, Kuai
秦快
Title: COB DISPLAY MODULE AND MANUFACTURING METHOD THEREFOR, AND LED DEVICE AND MANUFACTURING METHOD THEREFOR
Abstract:
A COB display module. The COB display module comprises a PCB plate (1), a plurality of LED light-emitting units (2), an encapsulating rubber layer (4) and light-shielding layers (5). The plurality of LED light-emitting units (2) are fixedly installed on the PCB plate (1). The encapsulating rubber layer (4) covers the PCB plate (1) and encloses the LED light-emitting units thereon. A flow channel (41) is arranged in the encapsulating resin layer (4) between each two adjacent LED light-emitting units (2), and the light-shielding layers (5) are filled into the flow channel (41). The COB display module further comprises reflection layers (6), the reflection layers (6) covering two side walls of the flow channel (41), and being located between the encapsulating rubber layer (4) and the light-shielding layers (5). Also disclosed is a manufacturing method for the COB display module. With respect to the prior art, the COB display module and the manufacturing method therefor have the advantages of high contrast and definition, less light loss and a good light convergence effect, and the manufacturing method is easy to achieve and operate, and the steps are simple and rational.