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:
Jul. 15, 2014
Filed:
Aug. 02, 2012
Kuang-yao Chang, Guangdong, CN;
Zan-jia Su, Guangdong, CN;
Kuang-Yao Chang, Guangdong, CN;
Zan-Jia Su, Guangdong, CN;
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Abstract
A direct type backlight unit includes an optical film, a diffusion plate for supporting the optical film, a bottom plate disposed under the diffusion plate, a plurality of light emitted diodes disposed between the diffusion plate and the bottom plate, and a plurality of support structures disposed between the diffusion plate and the bottom plate and fixed on the bottom plate, wherein each support structure is disposed between two adjacent light emitting diodes, a height of each support structure is smaller than a distance between the bottom plate and the diffusion plate. The direct type backlight unit can improve the problem that a dark area occurs on the diffusion plate.