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:
Mar. 04, 2014
Filed:
Nov. 24, 2010
Kuan-hong Hsieh, Taipei Hsien, TW;
Han-che Wang, Taipei Hsien, TW;
Hua-dong Cheng, Shenzhen, CN;
Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Shenzhen, CN;
Hon Hai Precision Industry Co., Ltd., New Taipei, TW;
Abstract
An LED display device providing current correction includes a number of LED modules, a microprocessor, and a storage unit storing a standard voltage value. The correction sequence begins with each of the plurality of LED modules entering a work state in sequence, outputting a feedback voltage indicating work current of one of the LED modules to the microprocessor in sequence, comparing the feedback voltage with the standard voltage, adjusting the current of the LED module if the feedback voltage does not equal the standard voltage.