公开(公告)号：US20230367350A1

公开(公告)日：2023-11-16

申请号：US17970026

申请日：2022-10-20

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hajun LEE ,  Jaewook KWON ,  Hyeongtae KIM

IPC: G05F3/22 ,  G05F3/30

CPC classification number: G05F3/225 ,  G05F3/30

Abstract: A bandgap reference circuit generates a PTAT voltage and a CTAT voltage having a different temperature characteristic from the PTAT voltage and generates a reference voltage based on the PTAT voltage, the CTAT voltage, and a compensation voltage. The bandgap reference circuit generates a CTAT current having a different temperature characteristic from the PTAT voltage based on the CTAT voltage and determines the compensation voltage based on the CTAT current.

公开(公告)号：US20230335066A1

公开(公告)日：2023-10-19

申请号：US18213632

申请日：2023-06-23

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jiyong JEONG ,  Yongjoo SONG ,  Jeongah AHN ,  Hajun LEE ,  Youngsub JIN

IPC: G09G3/3291

CPC classification number: G09G3/3291 ,  G09G2310/027

Abstract: A display driving circuit is provided. The circuit drives a display panel that includes data lines, sensing lines, and sub-pixels connected to the data lines and the sensing lines. The display driving circuit includes a data driver integrated circuit that drives the data lines. The data driver integrated circuit includes a driving block and a sensing block. The driving block includes plural digital-analog converters (DACs) each performing digital-analog conversion with respect to received sub-pixel data to generate output voltages and provide the output voltages of the DACs to the data lines. The sensing block measures grayscale voltages output from the DACs in a first operation mode and measures pixel voltages of the sub-pixels received from the sensing lines in a second operation mode.

公开(公告)号：US20200335045A1

公开(公告)日：2020-10-22

申请号：US16803042

申请日：2020-02-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jiyong JEONG ,  Yongjoo SONG ,  Jeongah AHN ,  Hajun LEE ,  Youngsub JIN

IPC: G09G3/3291

Abstract: A display driving circuit is provided. The circuit drives a display panel that includes data lines, sensing lines, and sub-pixels connected to the data lines and the sensing lines. The display driving circuit includes a data driver integrated circuit that drives the data lines. The data driver integrated circuit includes a driving block and a sensing block. The driving block includes plural digital-analog converters (DACs) each performing digital-analog conversion with respect to received sub-pixel data to generate output voltages and provide the output voltages of the DACs to the data lines. The sensing block measures grayscale voltages output from the DACs in a first operation mode and measures pixel voltages of the sub-pixels received from the sensing lines in a second operation mode.