主动式有机发光显示器的伽马校正
邰永航a，云利军b，石俊生a，陈载清b，李 琼a
【摘 要】摘要：针对平板显示器在光电转换过程中出现的非线性关系，视频图像在处理过程中引入了伽马校正。本文提出了一种关于0.5英寸主动式有机发光显示器SVGA050D的伽马校正方法。该方法根据查找表的对应关系，采用PIC单片机作为主控芯片，通过串行总线通信配置显示器和解码芯片等内部寄存器生成查找表的方式，实现了输入为VGA或复合视频信号的伽马校正。经实验验证，校正功能得到了有效的实现，视频图像的质量明显改进。 【期刊名称】光电工程 【年(卷),期】2012(039)001 【总页数】4
【关键词】伽马校正；AM-OLED；查找表；单片机
0 Introduction
Organic Light Emitting Diode (OLED) is a new panel display, which has the merits such as active luminescence, light weight, high brightness, fast response, high definition, low voltage, high efficiency and so on,is a potential substitute for LCD [1]. According to the driving mode, OLED can be divided into active drive(AM-OLED) and passive drive (PM-OLED) [2]. It is the hottest research subject in display field recently. Gamma describes the nonlinear relationship between the pixel levels in your computer and the luminance of the monitor(the light energy it emits) or the reflectance of your prints. The equation is [3]:
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