Investigation on Brightness Uniformity for the LED Array Display by Using Current-Based Bias Voltage Compensation

Jian-Long KUO  Tsung-Yu WANG  Jiann-Der LEE  

IEICE TRANSACTIONS on Electronics   Vol.E88-C   No.11   pp.2106-2110
Publication Date: 2005/11/01
Online ISSN: 
DOI: 10.1093/ietele/e88-c.11.2106
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Section on Electronic Displays)
LED array display,  brightness uniformity,  current based bias voltage compensation,  

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To understand the brightness uniformity for the driver of the LED array display, automatic electronic measurement equipment and its testing scheme will be proposed in this paper. The driving performance and dynamic characteristics will be investigated by using the proposed current-based bias voltage regulator. A complete testing procedure will be provided to assess the performance for the LED array display driver.