Chip-on-Board Display Module, Manufacturing Method thereof, Light-Emitting Diode Device and Manufacturing Method thereof

A Chip-on-Board (COB) display module is provided, which includes a Printed Circuit Board (PCB) a plurality of Light-Emitting Diode (LED) luminous units, a packaging adhesive layer and a light shielding layer wherein the plurality of LED luminous units are mounted and fixed on the PCB, the packaging...

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Bibliographic Details
Main Authors LIU, Chuanbiao, GU, Feng, LIU, Xiaofeng, QIN, Kuai
Format Patent
LanguageEnglish
Published 08.08.2019
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
SEMICONDUCTOR DEVICES
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Summary:A Chip-on-Board (COB) display module is provided, which includes a Printed Circuit Board (PCB) a plurality of Light-Emitting Diode (LED) luminous units, a packaging adhesive layer and a light shielding layer wherein the plurality of LED luminous units are mounted and fixed on the PCB, the packaging adhesive layer covers the PCB and wraps the LED luminous units thereon, a liquid passage is provided in the packaging adhesive layer between every two adjacent LED luminous units, and the light shielding layer fills the liquid passage. The COB display module further includes a reflecting layer, and the reflecting layer covers two sidewalls of the liquid passage, and is positioned between the packaging adhesive layer and the light shielding layer. A manufacturing method for the COB display module is also disclosed.
Bibliography:Application Number: US201716340150