发明名称 PIXEL CIRCUIT, DISPLAY AND DRIVING METHOD THEREOF
摘要 The invention provides a pixel circuit that can cancel the influence of the mobility of a drive transistor. A drive transistor supplies a light-emitting element with an output current dependent upon an input voltage. The light-emitting element emits light with a luminance dependent upon a video signal in response to the output current supplied from the drive transistor. The pixel circuit includes a correction unit that corrects the input voltage held by a capacitive part in order to cancel the dependence of the output current on the carrier mobility.
申请公布号 US2015138255(A1) 申请公布日期 2015.05.21
申请号 US201514598321 申请日期 2015.01.16
申请人 Sony Corporation 发明人 Yamashita Junichi;Uchino Katsuhide
分类号 G09G5/18;G09G3/32;G09G5/10 主分类号 G09G5/18
代理机构 代理人
主权项 1. A display device comprising: a pixel array part including a plurality of scan lines, a plurality of signal lines, and a plurality of pixel circuits, at least one of the pixel circuits including: a sampling transistor configured to sample a video signal from one of the signal lines,a capacitive part configured to hold an input voltage that includes the sampled video signal,a drive transistor configured to receive the input voltage held by the capacitive part and to supply an output current,a light-emitting element configured to receive the output current supplied by the drive transistor and to emit light with a luminance dependent upon the video signal, anda first switching transistor configured to supply a first potential to an anode electrode of the light-emitting element; wherein the input voltage held by the capacitive part is corrected for a characteristic of the drive transistor before an emission period, by a correction current through the drive transistor to the capacitive part, and wherein the anode electrode is reset to the first potential before the input voltage is corrected.
地址 Tokyo JP