硅基OLED微显示的数模融合驱动电路设计

季渊; 褚勇男; 冉峰; 穆廷洲; 满丽萍

doi:10.3788/YJYXS20173212.0973

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硅基OLED微显示的数模融合驱动电路设计

驱动与系统 | 更新时间：2020-07-07

- 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
- 液晶与显示 2017年32卷第12期页码：973-980
- 作者机构：
  
  上海大学微电子研究与开发中心, 上海 200072
- 作者简介：
  
  [ "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。E-mail:jiyuan@shu.edu.cn" ]
  [ "褚勇男(1992-), 男, 江苏南通人, 硕士研究生, 从事有机发光微显示和微电子与集成电路设计方面的研究" ]
  [ "冉峰(1954-), 男, 山东济宁人, 教授, 博士生导师, 长期从事LCD, OLED驱动控制芯片的设计研究" ]
- 基金信息：
  
  国家自然科学基金资助项目(61674100);国家自然科学基金资助项目(61774101);Supported by National Natural Science Foundation of China(61674100);Supported by National Natural Science Foundation of China(61774101)
- DOI：10.3788/YJYXS20173212.0973
  中图分类号： TN27
- 收稿日期：2017-05-22，
  
  录用日期：2017-8-25，
  
  纸质出版日期：2017-12-05
- 稿件说明：
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季渊, 褚勇男, 冉峰, 等. 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.

Yuan JI, Yong-nan CHU, Feng RAN, et al. 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, 等. 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. DOI： 10.3788/YJYXS20173212.0973.

Yuan JI, Yong-nan CHU, Feng RAN, et al. 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. DOI： 10.3788/YJYXS20173212.0973.

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

m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

m. 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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references

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