COB (Chip On Board) mirror surface aluminum substrate for improving side light emitting efficiency of LED (Light Emitting Diode) chip and LED light source

• Main Authors: HUANG DEBING, SHEN ZHIKUN
• Format: Patent
• Language: Chinese; English
• Published: 07.07.2023
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; SEMICONDUCTOR DEVICES

According to the COB mirror surface aluminum substrate and the LED light source provided by the utility model, the luminous efficiency of the side surface of the LED chip is improved. The utility model provides a COB (chip on board) mirror surface aluminum substrate for improving the light emitting efficiency of the side surface of an LED (light emitting diode) chip, which comprises an aluminum substrate body, the aluminum substrate body is provided with a first surface and a plurality of bosses arranged on the first surface at intervals, and each boss is provided with an inclined reflecting surface; the plurality of LED chips are arranged between two adjacent bosses, the plurality of bosses and the plurality of LED chips form a die bonding area, and the reflecting surface is used for reflecting side light of the edges of the LED chips and then emitting the side light; and the non-solid crystal region BT material reflecting layer is arranged on the periphery of the solid crystal region. According to the COB m