PIXEL CIRCUIT AND DISPLAY DEVICE Russian patent published in 2013 - IPC G09G3/294 G02F1/1368 

FIELD: information technology.

SUBSTANCE: liquid crystal capacitive element (Clc) is sandwiched between a pixel electrode (20) and a counter electrode (80). A counter voltage (Vcom) is applied to the counter electrode (80). The pixel electrode (20), one terminal a first switch circuit (22), one terminal of a second switch circuit (23) and a first terminal of a second transistor (T2) form an internal node (N1). The other terminals of the first switch circuit (22) are connected to a source line (SL). The other terminal of the second switch circuit (23) is connected to a voltage supply line (VSL), and is configured by a series-circuit of transistors (T1 and T3). The control terminal of the transistor (T1), the second terminal of the transistor (T2) and one terminal of a boost capacitive element (Cbst) form an output node (N2). The other terminal of the boost capacitive element (Cbst), the control terminal of the transistor (T2) and the control terminal of the transistor (T3) are respectively connected to a boost line (BST), a reference line (REF) and a selecting line (SEL).

EFFECT: reducing power consumption of the display device without deterioration of luminosity.

34 cl, 50 dwg