基于双帧数模融合扫描的硅基有机发光二极管微显示器  

Organic-Light-Emitting-Diode-on-Silicon Microdisplay Based on Double-Frame Digital-Analog-Hybrid Scanning Strategy

作　　者：穆廷洲 季渊[1] 陈文栋[1] 余云森 冉峰[1] Mu Tingzhou;Ji Yuan;Chen Wendong;Yu Yunsen;Ran Feng(Microelectronic Research & Development Center, Shanghai University, Shanghai 200444, China)

机构地区：[1]上海大学微电子研究与开发中心

出　　处：《激光与光电子学进展》2019年第9期217-223,共7页Laser & Optoelectronics Progress

基　　金：国家自然科学基金(61674100,61774101);上海市经信委专项资金(D.51-0307-14-002)

摘　　要：提出了一种双帧数模融合扫描策略,优化了数字脉宽调制部分。设计了一种硅基有机发光二极管(OLED)微显示器驱动电路,该电路包括像素驱动电路,在帧频为60Hz、灰度等级为256、分辨率为1920pixel×3pixel×1080pixel的条件下,扫描效率可达99.22%,数据传输频率降低至23.328 MHz。结果表明,该像素驱动电路可有效减少漏电流,保证灰度精度,降低最小电流,并提高硅基OLED微显示器的对比度。A double-frame digital-analog-hybrid scanning strategy is proposed, and the part of digital pulse width modulation is optimized. The driving circuit of an organic-light-emitting-diode (OLED)-on-silicon microdisplay is designed, which includes the pixel driving circuit. The scanning efficiency can reach 99.22% and the data transmission frequency can be reduced to 23.328 MHz under the conditions of frame rate of 60 Hz, gray level of 256, and resolution of 1920 pixel×3 pixel×1080 pixel. The results show that this pixel driving circuit can effectively reduce the leakage current, guarantee the gray precision, reduce the minimum current, and improve the contrast of the OLED-on-silicon microdisplay.

关 键 词：光学器件 光电器件 硅基有机发光二极管微显示器 双帧数模融合扫描策略 像素驱动电路 扫描效率 

分 类 号：TN27[电子电信—物理电子学]