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公开(公告)号：US20180358975A1
公开(公告)日：2018-12-13
申请号：US16002209
申请日：2018-06-07
Inventor： Ohjo KWON , Gyu-Hyeong CHO , Ki-Duk KIM , Ji-Su CHOI
IPC: H03M1/06 , G09G3/3291
CPC classification number: H03M1/066 , G09G3/20 , G09G3/3291 , G09G2310/027 , G09G2310/0291 , G09G2310/0294 , G09G2310/0297 , H03M1/66
Abstract: A digital-to-analog converter having a structure that converter may decrease an effect of a mismatch between elements and decrease a quantity of the elements. The digital-to-analog converter includes a multiplexer configured to output a first voltage or a second voltage corresponding to an input bit as an input voltage and a recursive switched circuit configured to alternately receive the input voltage and a reference voltage and to output an average value of the input voltage and the reference voltage as an output voltage.
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公开(公告)号：US20200160780A1
公开(公告)日：2020-05-21
申请号：US16578848
申请日：2019-09-23
Applicant: Samsung Display Co., Ltd.
Inventor： Jiwoong KIM , Ohjo KWON
IPC: G09G3/325 , G09G3/3291
Abstract: A pixel circuit includes first to fifth transistors, an organic light emitting element, and a capacitor. The second transistor includes a control electrode receiving a first scan signal, an input electrode receiving a data voltage, and an output electrode connected to the control electrode of the first transistor. The third transistor includes a control electrode receiving a second scan signal, an input electrode receiving an initialization voltage, and an output electrode connected to the output electrode of the first transistor. The fourth transistor includes a control electrode receiving an emission signal, an input electrode receiving a first power voltage, and an output electrode connected to the input electrode of the first transistor. The fifth transistor includes a control electrode receiving a third scan signal, an input electrode receiving the data voltage, and an output electrode connected to the input electrode of the first transistor.
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