P-102: Amorphous Silicon Thin-Film Transistors-based Active-Matrix Organic Light-Emitting Displays
نویسندگان
چکیده
In this paper, we describe hydrogenated amorphous silicon (a-Si:H) thin-film transistor (TFT)-based active-matrix arrays for active-matrix organic light-emitting displays (AM-OLEDs). The proposed pixel electrode circuits based on three a-Si:H TFTs can supply a continuous output current for AM-OLEDs. Each pixel circuit has compensation circuits that can adjust for the OLED and a-Si:H TFTs electrical characteristics shifts.
منابع مشابه
Four-Thin Film Transistor Pixel Electrode Circuits for Active-Matrix Organic Light-Emitting Displays
Constant-current, four-thin-film-transistor (TFT) pixel electrode circuits, based on hydrogenated amorphous silicon (a-Si:H) TFT technology for active-matrix organic light-emitting displays (AM-OLEDs), have been designed, fabricated, and characterized. Experimental results indicate that continuous pixel electrode excitation can be achieved with these circuits. The pixel electrode circuits use a...
متن کاملThreshold-Voltage-Shift Compensation and Suppression Method Using Hydrogenated Amorphous Silicon Thin-Film Transistors for Large Active Matrix Organic Light-Emitting Diode Displays
A threshold-voltage-shift compensation and suppression method for active matrix organic light-emitting diode (AMOLED) displays fabricated using a hydrogenated amorphous silicon thin-film transistor (TFT) backplane is proposed. The proposed method compensates for the threshold voltage variation of TFTs due to different threshold voltage shifts during emission time and extends the lifetime of the...
متن کاملModeling of the Threshold Voltage Shift Dependency on the Drain Bias in Amorphous Silicon Thin-Film Transistors in Active Matrix Organic Light-Emitting Diode Displays
A theoretical model to interpret appearances of the threshold voltage shift in hydrogenated amorphous silicon (a-Si:H) thin film transistors (TFT’s) is developed to better understand the instability of a-Si:H TFT’s for the driving transistors in active matrix organic light-emitting diode (AMOLED) displays. This model assumes that the defect creation is proportional to the carrier density in a-S...
متن کاملAmorphous In–Ga–Zn–O Thin Film Transistor Current-Scaling Pixel Electrode Circuit for Active-Matrix Organic Light-Emitting Displays
In this paper, we analyze application of amorphous In–Ga–Zn–O thin film transistors (a-InGaZnO TFTs) to current-scaling pixel electrode circuit that could be used for 3-in. quarter video graphics array (QVGA) full color active-matrix organic light-emitting displays (AM-OLEDs). Simulation results, based on a-InGaZnO TFT and OLED experimental data, show that both device sizes and operational volt...
متن کاملImproved A-Si:H TFT Pixel Electrode Circuits for Active-Matrix Organic Light Emitting Displays
Two improved four thin-film-transistors (TFTs) pixel electrode circuits based on hydrogenated amorphous silicon (a-Si:H) technology have been designed. Both circuits can provide a constant output current level and can be automatically adjusted for TFT threshold voltage variations. The circuit simulation results indicate that an excellent linearity between the output current and input current ca...
متن کامل