标题: | 双调变高动态范围显示系统之演算法 Modified Algorithm for Dual Modulation High Dynamic Range System |
作者: | 吕柏毅 Po-I Lu 田仲豪 Chung-Hao Tien 显示科技研究所 |
关键字: | 高动态范围显示器;光扩散函数;色彩特征化模型;high dynamic range display;light spread function;colorimetric characterization model |
公开日期: | 2008 |
摘要: | 自从高动态范围显示器被研发出来后,系统之效能以非常快的速度在进步。对高动态范围显示器来说,光扩散函数是一项非常重要的因素,因为光扩散函数连结了高动态范围显示器之光机与信号处理。因此,我们建立了由被动显示器与液晶面板组成之双调变高动态范围显示系统,希望藉由此测试平台来研究光扩散函数对系统效能之影响。但传统液晶补偿信号是根据液晶面板之理想色调再生曲线做运算,而大部分液晶面板之色调再生曲线都不是呈现理想之曲线,传统之运算不再适用于双调变高动态范围显示系统。本论文尝试将显示器色彩特征化模型应用于控制双调变高动态范围显示系统之液晶面板,期能得到正确的信号来重现目标亮度与色彩。 Since the high dynamic range displays were reported, the improvement on system performance has made a rapid progress. Among the technical considerations, light spread function is a key parameter to correlate the optomechanical setup with the signal process of the HDR display. The dual modulation system, which is constructed by the passive display and LC panel, offers a convenient platform to investigate the effect of LSF on system performance. However, for most of the LC panel, the tone reproduction curve deviates from the ideal one. The traditional computation for compensated LC signal, which is based on the ideal tone reproduction curve, is no longer suitable for dual modulation system. In this study, a modified algorithm which taken the characteristic of LC panel into account was proposed for dual modulation system. The accurate signal for reproducing target luminance and color can be obtained after applying the proposed algorithm. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#GT009515526 http://hdl.handle.net/11536/38637 |
显示于类别: | Thesis |
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