Lextar Electronics Corporation

Cheng-Ping Chang

Che-Ming Hsu

Hui-Kai Hsu

Liang-Ta Lin

Zong-Han Yu

Zong-Han Li

Yu-Jing Fang

Hsiang-Chun Hsu

Kuo-Chan Hung

A diode package structure includes a substrate, at least one diode chip and an opaque encapsulating layer. The substrate has an electrically conductive layer. At least one diode chip is mounted on the substrate and electrically connected to the electrically conductive layer. The opaque encapsulating layer has a cap portion and a sidewall portion, wherein the sidewall portion is connected to and surrounds the substrate to jointly form a concave structure, the cap portion is connected between a sidewall of the diode chip and the sidewall portion, wherein a first contact vertex of the cap portion and the sidewall of the diode chip is higher than a second contact vertex of the cap portion and the sidewall portion.

Diode package structure and manufacturing method thereof

A white light emitting device includes a blue LED chip having a dominant emission wavelength of about 440-465 nm, and a phosphor layer configured to be excited by the dominant emission wavelength of the blue LED chip. The phosphor layer includes a first phosphor having a peak emission wavelength of about 480-519 nm, a second phosphor having a peak emission wavelength of about 520-560 nm, and a third phosphor having a peak emission wavelength of about 620-670 nm. The first phosphor and the second phosphor both have a garnet structure as represented by ABO:Ce, A is selected from the group consisting of Y, Lu, and a combination of thereof, and B is selected from the group consisting of Al, Ga, and a combination of thereof.

White light emitting device

A white light source device includes a first light-emitting element, and at least one second light-emitting element. The first light-emitting element includes a first light-emitting unit and a first wavelength conversion unit, and emits a first light beam. Each of the second light-emitting elements includes a second light-emitting unit and a second wavelength conversion unit, and emits a second light beam. An emission spectrum of the second light beam is different from an emission spectrum of the first light beam. The first light beam and the second light beam are mixed into a white light beam, and a color fidelity index of the white light beam is greater than 90.

Growing community of inventors

Hsinchu, Taiwan

Cheng-Ping Chang