Luminance uniformity compensation for OLED panels based on FPGA  

作　　者：欧朋 杨刚 蒋泉 于军胜 吴启鹏 尚福海 尹伟 王军 钟建 骆开均 

机构地区：[1]Key Display Laboratory of Science and Technology of Sichuan, School of Optoelectronic Information, University of Electronic Science and Technology of China [2]Institute of Chemistry and Materials, Sichuan Normal University

出　　处：《Optoelectronics Letters》2009年第5期329-332,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (No.20472060)

摘　　要：Aiming at the problem of luminance uniformity for organic lighting-emitting diode (OLED) panels,a new brightness calculating method based on bilinear interpolation is proposed. The irradiance time of each pixel reaching the same lumi-nance is figured out by Matlab. Adopting the 64×32-pixel,single color and passive matrix OLED panel as adjusting luminance uniformity panel,a new circuit compensating scheme based on FPGA is designed. VHDL is used to make each pixel's irradiance time in one frame period written in program. The irradiance brightness is controlled by changing its irradiance time,and finally,luminance compensation of the panel is realized. The simulation result indicates that the design is reasonable.Aiming at the problem of luminance uniformity for organic lighting-emitting diode （OLED） panels, a new brightness calculating method based on bilinear interpolation is proposed. The irradiance time of each pixel reaching the same lumi- nance is figured out by Matlab. Adopting the 64×32-pixel, single color and passive matrix OLED panel as adjusting luminance uniformity panel, a new circuit compensating scheme based on FPGA is designed. VH L is used to make each pixel＇s irradiance time in one flame period written in program. The irradiance brightness is controlled by changing its irradiance time, and finally, luminance compensation of the panel is realized. The simulation result indicates that the design is reasonable.

关 键 词：OLED面板 亮度均匀性 亮度补偿 FPGA 光照时间 Matlab 面板设计 发光二极管 

分 类 号：TN312.8[电子电信—物理电子学]