Rosenberg, Klein & Lee
LED luminous structure for backlight source
Disclosed is an LED luminous structure for backlight source with good light emitting efficiency and color light rendering and capable of preventing oxidation or affects overall light quality. The LED luminous structure includes a base, a blue LED chip, a green LED chip, a red phosphor and an encapsulation. The blue and green LED chips are installed on the base, and the red phosphor absorbs is excited by a light emitted from the blue LED chip to produce a red light. The encapsulation is for packaging the aforementioned components. The red phosphor has a particle size of 20-30 μm, and the encapsulation has a moisture permeability of 10-20 g/m2.24h and an oxygen permeability smaller than 1000 cm3/m2.24h.atm to lower the chance of oxidizing the red phosphor and improve the stability, brightness and color gamut of the LED luminous structure by limiting the range of the particle size.
Unity Opto Technology Co., Ltd.
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Yu-Ling Hung-Li Chih-Chao
Tseng Yeh Chang