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:
Apr. 01, 2008
Filed:
Jul. 11, 2006
Bishou Chen, Shanghai, CN;
Yinghua Wang, Shanghai, CN;
Peng Wang, Shanghai, CN;
Xiaoliang He, Shanghai, CN;
Bishou Chen, Shanghai, CN;
Yinghua Wang, Shanghai, CN;
Peng Wang, Shanghai, CN;
Xiaoliang He, Shanghai, CN;
Shanghai Sansi Technology Co., Ltd., Shanghai, CN;
Abstract
The invention relates to a display apparatus, particularly to structure of LED display modules. The invention could be implemented through a LED matrix display module with high luminance area ratio comprising an injection molding unit and a printing board fitted therewith, wherein, LEDs are regularly arranged in a matrix on said printing board, and each pixel dot is correspondingly provided with a reflecting cavity on said molding unit, with the reflecting cavity expanding gradually from the inside section (close to the display surface). The circumference of the inside section of the reflecting cavity forms a closed and smooth circular curve. The invention is characterized in that, the circumference of the outside section of the reflecting cavity forms a closed and smooth curve which is a square with round corners, and the side face of the reflecting cavity is a smooth and cured surface. The invention is advantageous because the luminance area ratio could be significantly improved when the area formed by the circumference of the outside section of the reflecting cavity, which is a square with round corners, was large enough.