期刊文献+

有源OLED像素电路的设计与仿真 被引量:4

Design and Simulation of 4-TFT Pixel Electrode Circuit for Active-matrix OLED
下载PDF
导出
摘要 设计了有源OLED显示用非晶硅薄膜晶体管恒流型4-TFT像素驱动电路,并给出了驱动方法。应用HSPICE仿真了恒流型像素驱动电路的工作过程,详细分析了源(Source)电压VDD、存储电容Cs,以及开关晶体管T1、驱动晶体管T3的宽长比等参数对电路的输出特性的影响。仿真结果表明,此电路可以在整个帧周期持续供给OLED器件电流,并且解决了由于各像素驱动管阈值电压的差异带来的OLED亮度的不均匀问题。 Constant-current, four-thin-film-transistor (TFT) pixel electrode circuit, based on amorphous silicon thin-film-transistor (a-Si TFT) for active-matrix organic light-emitting display, was designed and its driving method was proposed. Influence of VDD voltage, storage capacitor (Cs) and W/L ratio of switching TFT (T1), driving TFT (T3) on the output characteristics of four-TFT pixel electrode circuit were analyzed in details using HSPICE software. Simulation results indicate that continuous pixel electrode excitation can be achieved with this circuit, and the heterogeneousness of luminance induced by TFT threshold voltage variation was eliminated.
出处 《液晶与显示》 CAS CSCD 北大核心 2005年第4期318-323,共6页 Chinese Journal of Liquid Crystals and Displays
基金 国家"863"计划(No.2004AA303560 No.2003AA311091) 国家科技攻关计划(No.2004BA106C)资助项目
关键词 有源OLED 非晶硅薄膜晶体管 像素驱动电路 仿真 active-matrix organic light-emitting device amorphous silicon thin-film-transistor pixel electrode circuit simulation
  • 相关文献

参考文献10

  • 1张彤,郭小军,赵毅,李春星,许武,王丽杰,刘式墉.a-Si TFT OLED有源驱动阵列参数的优化与布图设计[J].液晶与显示,2003,18(5):332-337. 被引量:14
  • 2Wu C C, Theiss S, Lu M H, et al. Integration of organic LEDs and amorphous Si TFTs onto unbreakable metal foil substrates[A].Tech.Dig.IEDM[C].1996.957-960.
  • 3Stewart M, Howell R S, Pires L. Polysilicon VGA active matrix OLED displays-technology and performance[A].Tech. Dig. IEDM.[C].1998.871-960.
  • 4Shimoda T, Ohshima H, Miyashita S, et al.High resolution light emitting polymer display driven by low temperature polysilicon thin film transistor with integrated driver[A].Proc. Asia Display98[C].1998. 217-220.
  • 5Dawson R M A, Shen Z, Furst D A. Design of an improved pixl for a polysilicon active matrix organic EL display[A].Symp. Dig.1998 SID[C].1998.11-14.
  • 6张志伟,荆海,邝俊峰,蔡克炬,郜峰利,朱长春.TFT-OLED驱动电路的研究[J].液晶与显示,2004,19(6):472-477. 被引量:13
  • 7谢强,李宏建,黄永辉,代国章,彭景翠.几种OLED有源驱动电路中像素单元电路的分析[J].液晶与显示,2004,19(6):462-467. 被引量:16
  • 8邵作叶,郑喜凤,陈宇.平板显示器中的OLED[J].液晶与显示,2005,20(1):52-56. 被引量:60
  • 9Sanford James L,Libsch Frank R.TFT AMOLED pixel circuits and driving methods[A].SID 03 Digest[C]. 2003. 10-13.
  • 10He Yi, Hattori Reiji,Kanicki Jerzy. Four-thin film transistor pixel electrode circuits for active -matrix organic light-emittng displays[J]. Jpn. J. Appl. Phys., 2001, 40(3):1199-1208.

二级参考文献34

  • 1Gu G ,Forrest Stephen R. Design of flat-panel displays based on organic light-emitting devices[J]. IEEE Journal of Selected Topics in Quantum glectronis ,1998,4(1) ,83-99.
  • 2Yi He, Polyfluorene LED and a-Si TFT Pixel Circuits for Active-Matrix Organic Light-Emitting Displays[D]. University of Michigan, 2000.
  • 3He Yi, HATTORI Reiji, KANICKI Jerzy. Four -TFT pixel electrode circuits for active-matrix organic light-emitting displays[J].Jpn J Appl Phys , 2001,40(3A) :1199-1208.
  • 4Shur M,Jacunski M,Slade H, et al . Analytical models for amorphous and polysilicon thin film transistors for high definition display technology[J]. J of the Society for Information Display ,1995,3(4) :2-23.
  • 5Howard, Webster E. Better displays with organic films[J]. Scientific American, 2004, (7) :76-79.
  • 6Shinar, Joseph. Organic Light-Emitting Devices : A Survey [M]. NY:Springer-Verlag. 2004.
  • 7Hatalis M K, Stewart M, Tang C W, et al. Polysilicon TFT active matrix organic EL display [A]. Proc. SPIE[C].1997,3057:277-281.
  • 8Hattori Reiji, Tsukamizy T, Tsuchiya R, et al. Current-writing active-matrix circuit for organic light-emitting diode display using a-Si:H thin-film-transistors[J]. IEICE Trans. Electron., 2000,E83-C(5):779-782.
  • 9Kumar A, Sakarya K, Servati P, et al. Design considerations for active matrix organic light emitting diode arrays[J]. IEE Proc. Circuit Devices Syst.,2003,150(4):322-328.
  • 10He Y, Hattori R, Kanicki J. Improved a-Si:H TFT pixel electrode circuits for active-matrix organic light emitting displays [J]. IEEE Transactions on Electron Devices,2001,48(7):1322 -1325.

共引文献89

同被引文献24

引证文献4

二级引证文献12

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部