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.

Date of Patent:
May. 28, 2019

Filed:

Sep. 21, 2017
Applicant:

Hong Kong Beida Jade Bird Display Limited, Hong Kong, HK;

Inventors:

Yijing Chen, Jiaxing, CN;

Fang Ou, Monterey Park, CA (US);

Wing Cheung Chong, Tseung Kwan O, HK;

Lei Zhang, Albuquerque, NM (US);

Qiming Li, Albuquerque, NM (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01); H01L 25/075 (2006.01); H01L 33/60 (2010.01); G09G 3/20 (2006.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); H01L 25/0753 (2013.01); G09G 3/2003 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0452 (2013.01); H01L 33/60 (2013.01);
Abstract

A display panel with integrated micro-reflectors. The display panel also includes an array of pixel light sources (e.g., micro-LEDs) electrically coupled to corresponding pixel driver circuits (e.g., FETs). The micro-LEDs produce light and the micro-reflectors reduce the divergence of the light produced by the micro-LEDs. Different designs are possible. The micro-reflectors can have different shapes, include the shape of their sidewalls and the shape of their plan cross-section. The array schemes can also vary, including the number of LEDs per micro-reflector. Different fabrication approaches are also possible. In one approach, a support structure is integrated between micro-LEDs. The sides of the support structure are reflective and serve as the reflective sidewalls of the micro-reflector. Alternately, the LED mesa itself can serve as the support structure.


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