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:
May. 17, 2016
Filed:
May. 20, 2014
Applicants:
Han-hui Chiu, Taichung, TW;
Kuo-lun Huang, Hsinchu, TW;
Inventors:
Han-Hui Chiu, Taichung, TW;
Kuo-Lun Huang, Hsinchu, TW;
Assignee:
MY-SEMI INC., Hsinchu County, TW;
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G09G 3/32 (2013.01); G09G 2300/06 (2013.01); G09G 2310/0275 (2013.01); G09G 2320/0209 (2013.01);
Abstract
A method to eliminate caterpillar phenomenon in a scanning LED display is disclosed, wherein each scan line comprises a USW(N) for charging the scan line(N) and a DSW(N) for discharging the scan line(N), the method comprising: turning on the USW(N) to charge the scan line(N) for a first time interval; turning on the DSW(N) to discharge the scan line(N) for a second pre-determined time interval; and turning off the DSW(N) after the second pre-determined time interval is elapsed.