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硅基OLED微显示的数模融合驱动电路设计

Design of digital analog hybrid driving circuit for OLED-on-silicon microdisplay

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摘要

当前, 硅基OLED(organic light-emitting diode, OLED)微显示器正向高分辨率、高刷新频率方向发展。为了实现像素面积微小型化、降低扫描数据流量从而更好满足高分辨率、高刷新率的要求, 提出了一种新型的有源矩阵硅基微显示驱动电路结构。该电路采用数模融合的扫描策略, 该策略结合了数字脉宽调制方式和模拟幅值调制方式; 设计了多列像素复用列驱动通道的结构, 满足数模融合扫描方式的时序要求。最后通过对列驱动单元后仿真, 得到关键时序参数, 结合数模融合扫描策略确定了几个具体结构方案。在保证红绿蓝三色像素尺寸在10 μm以下的情况下, 与单纯的数字扫描策略相比, 每秒数据流量降低了25%~64%。结果表明: 基于数模融合扫描策略的硅基OLED微显示驱动电路在保证像素面积微小型化基础上, 降低了扫描数据流量, 有利于高分辨率高刷新率的显示。

Abstract

The OLED-on-silicon microdisplay with high resolution and high refresh frequency is required in future applications. A novel active matrix OLED-on-silicon microdisplay driver architecture is proposed to reduce the pixel area and the data throughput to meet the new requirements. The proposed architecture adopts the digital-analog-hybrid scan strategy, which combines the digital pulse width modulation method and the analog amplitude modulation method. The multi-column multiplexing column drive channel is designed to meet the timing requirements. The critical timing parameters are obtained through the simulation of the column driving units. Several circuit structure schemes are compared by combining the digital-analog-hybrid scan strategy. The data throughput decreases 25% to 64% per second compared with the simple digital scanning strategy with the pixel pitch below 10 μm. The results show that the OLED-on-silicon microdisplay driver circuit based on digital-analog-hybrid scan strategy can reduce the scanning data throughput and help to realize the high resolution and high refresh rate OLED microdisplay.

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中图分类号:TN27

DOI:10.3788/yjyxs20173212.0973

所属栏目:驱动与系统

基金项目:国家自然科学基金资助项目(No. 61674100, No. 61774101)

收稿日期:2017-05-22

修改稿日期:2017-08-25

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作者单位    点击查看

季 渊:上海大学 微电子研究与开发中心, 上海 200072
褚勇男:上海大学 微电子研究与开发中心, 上海 200072
冉 峰:上海大学 微电子研究与开发中心, 上海 200072
穆廷洲:上海大学 微电子研究与开发中心, 上海 200072
满丽萍:上海大学 微电子研究与开发中心, 上海 200072

联系人作者:季渊(jiyuan@shu.edu.cn)

备注:季渊(1980-), 男, 上海人, 博士, 硕士生导师, 主要从事有机发光微显示、微电子与集成电路设计、多媒体嵌入式处理器与片上系统的研究。

【1】马东阁.OLED显示与照明——从基础研究到未来的应用[J].液晶与显示, 2016, 31(3): 229-241.
MA D G. OLED display and lighting—from basic research to future applications [J]. Chinese Journal of Liquid Crystals and Displays, 2016, 31(3): 229-241. (in Chinese)

【2】张天瑜, 张义鑫, 张乐天, 等.基于双极性蓝色荧光材料的高效混合型白色有机发光器件[J].光学 精密工程, 2015, 23(10z): 253-258.
ZHANG T Y, ZHANG Y X, ZHANG L T, et al. Efficient hybrid white organic light-emitting devices based on ambipolar blue fluorescent material [J]. Optics and Precision Engineering, 23(10z): 253-258. (in Chinese)

【3】WACYK I, GHOSH A, PRACHE O,et al. Ultra-high resolution and high-brightness AMOLED [J]. Proceedings of SPIE, 2012, 8383: 83830Q.

【4】LEVY G B, EVANS W, EBNER J,et al. An 852/spl times/600 pixel OLED-on-silicon color microdisplay using CMOS subthreshold-voltage-scaling current drivers [J]. IEEE Journal of Solid-State Circuits, 2002, 37(12): 1879-1889.

【5】段瑜, 张筱丹, 孙浩, 等.高亮度顶发射单色绿光OLED微显示器件制备[J].红外技术, 2015, 37(12): 1022-1026.
DUAN Y, ZHANG X D, SUN H,et al. Fabrication of high brightness top-emitting green OLED micro-display [J]. Infrared Technology, 2015, 37(12): 1022-1026. (in Chinese)

【6】ONOYAMA Y, YAMASHITA J, KITAGAWA H,et al. 70.4L: late-news paper: 0.5-inch XGA micro-OLED display on a silicon backplane with high-definition technologies [J]. SID Symposium Digest of Technical Papers, 2012, 43(1): 950-953.

【7】杨淼, 黄晓刚, 张白雪, 等.分辨率为800 × 600的硅基OLED微显示驱动芯片设计[J].固体电子学研究与进展, 2016(2): 142-147, 164.
YANG M, HUANG X G, ZHANG B X,et al. The design of an OLED-on-silicon micro-display with the resolution of 800 × 600 [J]. Research & Progress of SSE, 2016(2): 142-147, 164. (in Chinese)

【8】KWAK B C, KWON O K. A 2822-ppi resolution pixel circuit with high luminance uniformity for OLED microdisplays [J]. Journal of Display Technology, 2016, 12(10): 1083-1088.

【9】JI Y, RAN F, XU H G, et al. A digitally driven pixel circuit with current compensation for AMOLED microdisplays [J]. Journal of the Society for Information Display, 2014, 22(9): 465-472.

【10】季渊, 王成, 冉峰, 等.一种支持OLED亮度补偿的电流型PWM像素驱动电路[J].液晶与显示, 2016, 31(6): 563-568.
JI Y, WANG C, RAN F,et al. Current PWM pixel driving circuit with OLED luminance compensation [J]. Chinese Journal of Liquid Crystals and Displays, 2016, 31(6): 563-568. (in Chinese)

【11】CHOI B D, PARK I S, KIM J S, et al. Image quality enhancement in AMOLED microdisplay for mobile projectors [J]. IEEE Transactions on Consumer Electronics, 2011, 57(2): 313-319.

【12】徐美华, 陈章进, 冉峰, 等.平板显示系统的最优扫描结构及分形模型[J].电子学报, 2006, 34(8): 1376-1380.
XU M H, CHEN Z J, RAN F,et al. Optimal scanning architecture and fractal model for flat panel display system [J]. Acta Electronica Sinica, 2006, 34(8): 1376-1380. (in Chinese)

引用该论文

JI Yuan,CHU Yong-nan,RAN Feng,MU Ting-zhou,MAN Li-ping. Design of digital analog hybrid driving circuit for OLED-on-silicon microdisplay[J]. Chinese Journal of Liquid Crystals and Displays, 2017, 32(12): 973-980

季 渊,褚勇男,冉 峰,穆廷洲,满丽萍. 硅基OLED微显示的数模融合驱动电路设计[J]. 液晶与显示, 2017, 32(12): 973-980

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