Novel Current Driving Circuit for Active Matrix Organic Light Emitting Diode

Current-Scaling a-Si:H TFTs Pixel Electrode Circuit for Active-Matrix Organic Light-Emitting Displays

Hydrogenated amorphous silicon thin-film transistor (a-Si:H TFT) pixel electrode circuit with a function of current scaling is proposed for active-matrix organic light-emitting displays (AM-OLEDs). In contrast to the conventional current mirror pixel electrode circuit, in this circuit a high data-to-organic light-emitting device (OLED) current ratio can be achieved, without increasing the a-Si:...

P-143: A Novel Current-Scaling a-Si:H TFTs Pixel Electrode Circuit for Active-Matrix Organic Light-Emitting Displays

Hydrogenated amorphous silicon thin-film transistor (a-Si:H TFT) pixel electrode circuit with a function of current scaling is proposed for active-matrix organic light-emitting displays (AM-OLEDs). In contrast to the conventional current mirror pixel electrode circuit, in this circuit a high data-to-organic light-emitting device (OLED) current ratio can be achieved, without increasing the a-Si:...

A flexible organic active matrix circuit fabricated using novel organic thin film transistors and organic light-emitting diodes

We present an active matrix circuit fabricated on plastic (polyethylene naphthalene, PEN) and glass substrates using organic thin film transistors and organic capacitors to control organic light-emitting diodes (OLEDs). The basic circuit is fabricated using two pentacene-based transistors and a capacitor using a novel aluminum oxide/parylene stack (Al2O3/parylene) as the dielectric for both the...

Overview of All Pixel Circuits for Active Matrix Organic Light Emitting Diode (AMOLED)

4.2: Design of an Improved Pixel for a Polysilicon Active Matrix Organic Light Emitting Diode Display

A polysilicon transistor based active matrix organic light emitting diode (AMOLED) pixel with high pixel to pixel luminance uniformity is reported. The new pixel powers the OLEDs with small constant currents to ensure consistent brightness and extended life. Excellent pixel to pixel current drive uniformity is obtained despite the threshold voltage variation inherent in polysilicon transistors....