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:
Oct. 17, 2006
Filed:
Apr. 28, 2006
Xing-peng Yang, Beijing, CN;
Ying-bai Yan, Beijing, CN;
Guo-fan Jin, Beijing, CN;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., LTD, Taipei Hsien, TW;
Abstract
A backlight module () includes a light source () for emitting light, a light guide plate (), and a reflective cover (). The light guide plate includes a light incidence surface (), a light-emitting surface () connecting with the light incidence surface, and a bottom surface () opposite to the light-emitting surface. The light source faces the light incidence surface. The reflective cover includes a reflective unit having two reflective surfaces () defining a space with a bottom. The light source is accommodated in the bottom of the space. A cross-sectional profile of the reflective surfaces is defined by an equation in a polar coordinate ρ(φ). The equation is: wherein, ρ represents a polar axis of the polar coordinate, φ represents a clockwise angle of the polar coordinate, and θ represents an anti-clockwise divergence angle of the light.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile