Title :
Uniform utilization of each LED in an LED array
Author :
Hung, Chi-Huang ; Bai, Ying-Wen ; Tsai, Ren-Yi
Author_Institution :
Grad. Inst. of Appl. Sci. & Eng., Fu Jen Catholic Univ., Taipei, Taiwan
Abstract :
When we use halftone as the method to adjust the brightness of an LED array, there may be a difference in utilization among the LEDs which may cause a high utilization of a particular one, easily damaging and reducing the life of the array. In this paper we therefore propose a shift method by using different halftone patterns with complement in the LED array to achieve uniform utilization of each LED.
Keywords :
image processing; light emitting diodes; LED array; halftone pattern method; shift method; Arrays; Brightness; Cryptography; Image color analysis; Light emitting diodes; Visualization; Watermarking;
Conference_Titel :
Consumer Electronics (ISCE), 2011 IEEE 15th International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-843-3
DOI :
10.1109/ISCE.2011.5973889
