The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 18, 2011
Filed:
Oct. 31, 2007
Chin-yuan Hsu, Kaohsiung, TW;
Chia-hsien Chang, Changhua County, TW;
Szu-wei Huang, Tucheng, TW;
Everlight Electronics Co., Ltd., Tu Chen, Taipei Hsien, TW;
Abstract
A light emitting diode device is disclosed, and the light emitting diode device includes a base, a substrate, a lead frame, a chip, a first mixed layer and a second mixed layer. The first mixed layer and the second mixed layer respectively contain a glue and a thermal conductance insulating material, such as diamond carbon, diamond-like carbon or ceramic. The substrate and the lead frame are set on the base. The first mixed layer is formed between the chip and the substrate to fix the chip and strengthen heat dissipation. The second mixed layer is covered on the substrate and the chip to reduce the difference of the refraction index such that the total internal reflection angle is wider and the emitting efficiency is enhanced.