Title
Algorithms for longer OLED lifetime
Abstract
We consider an optimization problem arising in the design of con- trollers for OLED displays. Our objective is to minimize the amplitude of the electrical current flowing through the diodes which has a dir ect impact on the lifetime of such a display. The optimization problem consist of finding a decom- position of an image into subframes with special structural properties that allow the display driver to lower the stress on the diodes. For monochrome images, we present an algorithm that finds an optimal solution of this pr oblem in quadratic time. Since we have to find a good solution in realtime, we cons ider an online version of the problem in which we have to take a decision for one row based on a constant number of rows in the lookahead. In this framework this algorithm has a tight competitive ratio. A generalization of this algo rithm computes near optimal solutions of real-world instances in realtime.
Year
DOI
Venue
2007
10.1145/1498698.1594229
Journal of Experimental Algorithmics (JEA)
Keywords
DocType
Volume
good solution,constant number,direct impact,near-optimal solution,oled display,combinatorial optimization,real time,monochrome image,oled lifetime,display driver,optimal solution,online version,optimization problem,algorithm compute,matrix decomposition,linear time,display data processing
Conference
14,
ISSN
Citations 
PageRank 
0302-9743
3
0.88
References 
Authors
3
3
Name
Order
Citations
PageRank
Friedrich Eisenbrand172653.74
Andreas Karrenbauer213320.21
Chihao Xu3123.00