公开(公告)号：US20220311397A1

公开(公告)日：2022-09-29

申请号：US17567512

申请日：2022-01-03

Applicant: Samsung Display Co., Ltd. ,  Korea Advanced Institute of Science and Technology

Inventor： Seok-Tae Koh ,  Seongjoo Lee ,  Hyun-Sik Kim ,  Gyeong-Gu Kang ,  Seunghwa Shin ,  Ohjo Kwon ,  Keumdong Jung

IPC: H03F3/45 ,  H03F1/02 ,  G09G3/20

Abstract: An amplifier circuit includes a differential input terminal, a first power supplier, an amplifier, and a current redistributor. A differential input terminal includes a first differential pair of a p-type and a second differential pair of an n-type, and receives an input voltage. A first power supplier supplies a bias current to the differential input terminal. An amplifier receives an output current of the first differential pair and an output current of the second differential pair, and applies an amplified current to an output node. A current redistributor receives the output current of the first differential pair and the output current of the second differential pair, and provides a redistribution current to the differential input terminal.

公开(公告)号：US09727192B2

公开(公告)日：2017-08-08

申请号：US14801465

申请日：2015-07-16

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun-Sik Kim ,  Jun-Young Ko ,  Kwan Young Han

IPC: G06F3/044 ,  G06F3/041

CPC classification number: G06F3/044 ,  G06F3/0416

Abstract: A touch display device including: a plurality of first sensing electrodes; a plurality of second sensing electrodes forming a mutual capacitance with the plurality of first sensing electrodes; an oscillation circuit connected with the plurality of second sensing electrodes and supplying energy so as to generate a first sinusoidal wave signal; a first electrode plate forming a parasitic capacitance with the first and second sensing electrodes and receiving a second sinusoidal wave signal corresponding to the first sinusoidal wave signal; and a scanning driver configured to sequentially select the plurality of first sensing electrodes one-by-one, apply a reference voltage to the selected first sensing electrode, and float the first sensing electrodes which are not selected.

公开(公告)号：US09691329B2

公开(公告)日：2017-06-27

申请号：US13929722

申请日：2013-06-27

Applicant: SAMSUNG DISPLAY CO., LTD. ,  KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Oh-Jo Kwon ,  Won-Tae Choi ,  Hee-Sun Ahn ,  Bo-Yeon Kim ,  Gyu-Hyeong Cho ,  Hyun-Sik Kim ,  Jun-Suk Bang

IPC: G09G3/30 ,  G09G3/3291 ,  G09G3/3233

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2320/0693

Abstract: An organic light emitting display device includes pixels positioned at crossing regions between data lines and scan lines, each of the pixels including an organic light emitting diode, a scan driver configured to supply a scan signal to scan lines, a data driver configured to drive the data lines, wherein the data driver includes, in each channel, a supply part comprising a digital-to-analog converter configured to generate data signals using second data supplied from outside in a driving period, and a deterioration part configured to measure deterioration information of the organic light emitting diode using the digital-to-analog converter in a sensing period.

公开(公告)号：US11736079B2

公开(公告)日：2023-08-22

申请号：US17567512

申请日：2022-01-03

Applicant: Samsung Display Co., Ltd. ,  Korea Advanced Institute of Science and Technology

Inventor： Seok-Tae Koh ,  Seongjoo Lee ,  Hyun-Sik Kim ,  Gyeong-Gu Kang ,  Seunghwa Shin ,  Ohjo Kwon ,  Keumdong Jung

IPC: H03F3/45 ,  H03F1/02 ,  G09G3/20

CPC classification number: H03F3/45273 ,  G09G3/20 ,  H03F1/0211 ,  H03F3/45269 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/0291 ,  G09G2330/02 ,  H03F2203/45476

Abstract: An amplifier circuit includes a differential input terminal, a first power supplier, an amplifier, and a current redistributor. A differential input terminal includes a first differential pair of a p-type and a second differential pair of an n-type, and receives an input voltage. A first power supplier supplies a bias current to the differential input terminal. An amplifier receives an output current of the first differential pair and an output current of the second differential pair, and applies an amplified current to an output node. A current redistributor receives the output current of the first differential pair and the output current of the second differential pair, and provides a redistribution current to the differential input terminal.