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. 30, 2018
Filed:
Mar. 20, 2018
Macroblock, Inc., Hsinchu, TW;
Ping-Kai Huang, Hsinchu, TW;
Chung-Ta Tsai, Hsinchu, TW;
Macroblock, Inc., Hsinchu, unknown;
Abstract
A light emitting diode (LED) failure detecting device is operatively associated with an LED array, and includes a driving circuit and a determining circuit. The driving circuit is used to be coupled to scan lines and data lines of the LED array, and drives, based on a first control input corresponding to selection of one of LED units of the LED array, the LED units in such a way that a current flows through said one of the LED units. The determining circuit generates, based at least on the voltages respectively at the data lines and on a second control input corresponding at least to selection of the data line that is coupled to said one of the LED units, a determination output that indicates whether said one of the LED units is determined to have failed.