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1.上海大学 微电子研究与开发中心, 上海 200072
2.上海大学 机电工程与自动化学院, 上海 200072
[ "季渊(1980-), 男, 上海人, 博士, 硕士生导师, 2002年、2005年、2012年于上海大学分别获得学士、硕士、博士学位, 2013~2014年在美国明尼苏达大学从事博士后研究, 主要研究方向为平板显示驱动技术、平板显示器灰度控制算法及集成电路设计。E-mail:jiyuan@shu.edu.cn" ]
[ "王成其(1992-), 女, 江苏宿迁人, 硕士, 2015年于南通大学获得学士学位, 2018年于上海大学获得硕士学位, 主要研究方向为平板显示器及平板灰度控制算法的研究。E-mail:18800201983@163.com" ]
收稿日期:2017-10-16,
录用日期:2017-11-6,
纸质出版日期:2018-04-25
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季渊, 王成其, 陈文栋, 等. OLED微显示器的原子扫描策略[J]. 光学 精密工程, 2018,26(4):998-1005.
Yuan JI, Cheng-qi WANG, Wen-dong CHEN, et al. An atom scan strategy for OLED micro display[J]. Optics and precision engineering, 2018, 26(4): 998-1005.
季渊, 王成其, 陈文栋, 等. OLED微显示器的原子扫描策略[J]. 光学 精密工程, 2018,26(4):998-1005. DOI: 10.3788/OPE.20182604.0998.
Yuan JI, Cheng-qi WANG, Wen-dong CHEN, et al. An atom scan strategy for OLED micro display[J]. Optics and precision engineering, 2018, 26(4): 998-1005. DOI: 10.3788/OPE.20182604.0998.
为了实现2K及以上超高清微型显示器的高效率高性能扫描,建立了微型显示器的原子扫描模型。对该模型采用的数学矩阵、基于分形延伸的植入运算进行研究,提出了原子扫描策略并推导了原子扫描序列。首先,对现有的PWM(脉冲宽度调制)扫描策略进行扫描性能分析。然后,在分析比较几种扫描策略性能的基础上,说明原子扫描是实现较优性能的最佳选择。实验结果表明:对于256级灰度,采用32位子空间,8位权值比为128:64:32:16:9:4:2:1的原子扫描策略具有较好的线性度和较高的传输效率。在分辨率为1 600×1 600的原子扫描方案中,时钟频率为50 MHz,帧频可达90 Hz,线性度接近99.8%,传输效率高达100%,基本满足超高分辨率扫描系统中高帧频、较低时钟、高线性度的要求。
An atom scanning system was established in order to improve scanning efficiency and achieve resolution better than 2K for flat-panel displays. The atom scanning strategy was analyzed using mathematical matrices based on fractal geometry. First
the existing PWM scanning strategies were analyzed. Next
we performed a comparative study of the performances of different scanning strategies
and illustrated that the atom scanning method exhibits the best performance. Our experimental results indicate that linearity is preferred when the weight value of 8 bits is converted to 128:64:32:16:9:4:2:1 for 256 level gray-scale images. For a resolution of 1600×1600 with a clock frequency of 50 MHz
the scanning frame frequency reaches 90 Hz
while the linearity and transmission efficiency are 99.8% and 100%
respectively. Thus
the requirements of extremely high resolution and frame frequency
low clock frequency
and high linearity are satisfied.
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