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. 27, 2009
Filed:
Jun. 28, 2005
Pi-jin Chen, Beijing, CN;
Peng Liu, Beijing, CN;
LI Qian, Beijing, CN;
Yang Wei, Beijing, CN;
Lei-mei Sheng, Beijing, CN;
You-hua Lei, Beijing, CN;
Liang Liu, Beijing, CN;
Shou-shan Fan, Beijing, CN;
Pi-Jin Chen, Beijing, CN;
Peng Liu, Beijing, CN;
Li Qian, Beijing, CN;
Yang Wei, Beijing, CN;
Lei-Mei Sheng, Beijing, CN;
You-Hua Lei, Beijing, CN;
Liang Liu, Beijing, CN;
Shou-Shan Fan, Beijing, CN;
Tsinghua University, Beijing, CN;
Hon Hai Precision Industry Co., Ltd., Tu-Cheng, Taipei Hsien, TW;
Abstract
A double-faced light emitting diode display includes a pair of parallel shield panels ('), and a light emitting module () located between the shield panels. Each shield panel includes a video contrast enhancement assembly. The light emitting module includes an opaque insulative substrate () with a pair of pixel matrixes symmetrically formed on opposite surfaces (′) thereof and a circuit driving system formed at at least one of the surfaces. Each pixel matrix includes a plurality of pixel units (′). Symmetrically opposite pairs of pixel units are electrically interconnected so that the shield panels can simultaneously display same images. The double-faced light emitting diode display has a simple structure, a small size, low cost and full color display capability, and can be advantageously applied in traffic signal boards, large-scale display boards, surround cinemas and so on.