PIXEL CIRCUIT AND DISPLAY DEVICE Russian patent published in 2014 - IPC G09G3/36 

FIELD: physics.

SUBSTANCE: capacitor element (C1c) is formed between a pixel electrode (20) and a counter electrode (80). Counter electrode voltage (Vcom) is applied across the counter electrode (80). Like terminals of the pixel electrode (20), the first switching circuit (22) and the second switching circuit (23), and the first terminal of the second transistor (T2) form an internal node (N1). The first switching circuit (22) and the second switching circuit (23) have other terminals connected to a source line (SL). The second switching circuit (23) is configured by a series circuit of transistors (T1 and T3), and the control terminal of the transistor (T1), the second terminal of the transistor (T2) and one terminal of the voltage boosting capacitor element (Cbst) form an output node (N2). The other terminal of the voltage boosting capacitor element (Cbst) is connected to a voltage boosting line (BST), the control terminal of the transistor (T2) is connected to the reference line (REF), and the control terminal of the transistor (T3) is connected to the selection line (SEL).

EFFECT: reducing power consumption without causing aperture deterioration.

29 cl, 35 dwg