公开(公告)号：US12125426B2

公开(公告)日：2024-10-22

申请号：US18210960

申请日：2023-06-16

Applicant: SAMSUNG DISPLAY CO., LTD. ,  KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Gun Ma ,  Gyu Wan Lim ,  Gyeong Gu Kang ,  Hyun Sik Kim ,  Keum Dong Jung ,  Moon Jae Jeong

IPC: G09G3/20 ,  G06F3/044 ,  G09G3/3208 ,  H10K59/40

CPC classification number: G09G3/20 ,  G06F3/044 ,  G09G3/3208 ,  G09G2300/0828 ,  G09G2300/0852 ,  G09G2300/0871 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2330/028 ,  H10K59/40

Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.

公开(公告)号：US11721265B1

公开(公告)日：2023-08-08

申请号：US17985554

申请日：2022-11-11

Applicant: SAMSUNG DISPLAY CO., LTD. ,  KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Gun Ma ,  Gyu Wan Lim ,  Gyeong Gu Kang ,  Hyun Sik Kim ,  Keum Dong Jung ,  Moon Jae Jeong

IPC: G09G3/20 ,  G06F3/044 ,  G09G3/3208 ,  H10K59/40

CPC classification number: G09G3/20 ,  G06F3/044 ,  G09G3/3208 ,  G09G2300/0828 ,  G09G2300/0852 ,  G09G2300/0871 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2330/028 ,  H10K59/40

Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.

公开(公告)号：US20230326384A1

公开(公告)日：2023-10-12

申请号：US18210960

申请日：2023-06-16

Applicant: SAMSUNG DISPLAY CO., LTD. ,  KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Gun MA ,  Gyu Wan LIM ,  Gyeong Gu KANG ,  Hyun Sik KIM ,  Keum Dong JUNG ,  Moon Jae JEONG

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G3/3208 ,  G09G2310/027 ,  G09G2300/0871

Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.

公开(公告)号：US20230260441A1

公开(公告)日：2023-08-17

申请号：US17985554

申请日：2022-11-11

Applicant: SAMSUNG DISPLAY CO., LTD. ,  KOREAN ADVANCE INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Hyung Gun Ma ,  Gyu Wan Lim ,  Gyeong Gu Kang ,  Hyun Sik Kim ,  Keum Dong Jung ,  Moon Jae Jeong

IPC: G09G3/20

CPC classification number: G09G3/20 ,  H01L27/323

Abstract: A data driving circuit includes: a resistor string in which a plurality of resistors are connected in series; and a plurality of data channels connected to a high voltage node, intermediate voltage nodes, and a low voltage node of the resistor string and configured to convert a digital data signal into an analog data voltage. Each of the plurality of data channels includes: a main digital-to-analog converter connected to the high voltage node, the intermediate voltage nodes, and the low voltage node, a multiplier connected to an output terminal of the main digital-to-analog converter, a sub digital-to-analog converter connected to some of the high voltage node, the intermediate voltage nodes, and the low voltage node, and a voltage synthesizer connected to an output terminal of the multiplier and an output terminal of the sub digital-to-analog converter.