摘要
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50MHz,帧频可达90Hz,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.
作者
季渊
王成其
陈文栋
满丽萍
冉峰
JI Yuan;WANG Cheng-qi;CHEN Wen-dong;MAN Li-ping;RAN Feng
出处
《光学精密工程》
EI
CAS
CSCD
北大核心
2018年第4期998-1005,共8页
Optics and Precision Engineering
基金
国家自然科学基金资助项目(No.61376028
No.61674100
No.61774101)
关键词
有机发光
微显示器
超高分辨率
分形扫描
原子扫描
Organic Light-Emitting Diode(OLED)
microdisplay
ultra-high resolution
fractal scan
atom scan
