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. 21, 2020
Filed:
Oct. 05, 2018
Backplane suitable to form part of an emissive pixel array and system and methods of modulating same
Jasper Display Corp., Hsinchu, TW;
Bo Li, Santa Clara, CA (US);
Kaushik Sheth, Los Altos, CA (US);
James Michael Stover, Santa Clara, CA (US);
Edwin Lyle Hudson, Santa Clara, CA (US);
David Charles McDonald, Santa Clara, CA (US);
Jeffrey Tang Fung Li, Santa Clara, CA (US);
JASPER DISPLAY CORP., Hsinchu, TW;
Abstract
A backplane operative to drive an array of emissive pixel elements is disclosed. Each pixel element comprises a pixel circuit drive element and an emissive element, wherein the pixel circuit drive element comprises a memory cell, a current source element, and a modulation element. The present invention improves on an emissive display by providing a backplane and modulation system that enables fabrication of multi-color or monochrome LED display systems that operate efficiently and without objectionable image artifacts. One aspect of the present invention is to realize the backplane in a single crystal silicon process with a minimum number of metal layers while providing each color with a suitable operating voltage and drive current.