公开(公告)号：US20210375181A1

公开(公告)日：2021-12-02

申请号：US17235161

申请日：2021-04-20

Applicant: Samsung Display Co., Ltd.

Inventor： KIHYUN PYUN ,  HEESOOK PARK

IPC: G09G3/20

Abstract: A driving controller includes an image analyzer, a grayscale setter and a time-and-space arranger. The image analyzer analyzes input image data to determine a peak luminance. The grayscale setter receives a gamma value and the peak luminance and to determine a boundary grayscale value and a minimum grayscale value. The time-and-space arranger is configured to temporally and spatially arrange first data having the boundary grayscale value and second data having the minimum grayscale value. The driving controller is configured to drive a display panel using the first data and the second data for a low grayscale range of which a grayscale is equal to or less than the boundary grayscale value and to drive the display panel based on a data signal corresponding to a grayscale value of the input image data for a normal grayscale range of which a grayscale is greater than the boundary grayscale value.

公开(公告)号：US20190180709A1

公开(公告)日：2019-06-13

申请号：US16216158

申请日：2018-12-11

Applicant: SAMSUNG DISPLAY CO, LTD.

Inventor： SUJIN LEE ,  KIHYUN PYUN ,  KEUNOH KANG

IPC: G09G3/36

Abstract: A display device includes a display panel including a plurality of pixels, a gate driver configured to provide gate signals to the plurality of pixels, a data driver configured to generate a first initialization completion signal, and to provide data signals to the plurality of pixels, and a controller configured to generate a second initialization completion signal in response the first initialization completion signal and a state signal, and to control the gate driver and the data driver in response to the second initialization completion signal. The first initialization completion signal is activated when an initialization operation of the data driver is completed, and the state signal is activated when an initialization operation of the controller is completed.

公开(公告)号：US20190057667A1

公开(公告)日：2019-02-21

申请号：US15981239

申请日：2018-05-16

Applicant: Samsung Display Co, Ltd

Inventor： KIHYUN PYUN ,  YUNMI KIM ,  SUNG-JUN KIM ,  JUHYUN KIM ,  MINYOUNG PARK ,  HEEBUM PARK

IPC: G09G3/36

CPC classification number: G09G3/3688 ,  G09G3/3677 ,  G09G2300/0857 ,  G09G2310/0243 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2310/0294 ,  G09G2310/08 ,  G09G2320/02 ,  G09G2330/02 ,  G09G2330/08 ,  G09G2370/08

Abstract: A display panel driver includes a timing controller and a data driver. The timing controller generates a data signal based on an input image data. The data driver receives the data signal, converts the data signal into a data voltage and outputs the data voltage to a display panel. The data signal includes positive data and negative data. The data driver includes a data skew compensating circuit which samples the positive data using the negative data and compensates a skew of the data signal.

公开(公告)号：US20180315369A1

公开(公告)日：2018-11-01

申请号：US15945263

申请日：2018-04-04

Applicant: Samsung Display Co., Ltd.

Inventor： KIHYUN PYUN ,  HYEON-DO PARK

IPC: G09G3/20

Abstract: A display apparatus includes a display panel including a plurality of first gate lines, a first gate driver connected to first ends of the plurality of first gate lines, a second gate driver connected to second ends of the plurality of first gate lines, a feedback line connected adjacent to the first end of one of the plurality of first gate lines, and a gate delay sensing circuit connected to the feedback line. The gate delay sensing circuit includes a time-to-digital converter and a digital comparator. The time-to-digital converter converts an activation time of a feedback gate signal into a digital activation value. The feedback gate signal is retrieved from the feedback line. The digital comparator generates a digital delay value based on the digital activation value. The digital delay value indicates resistive-capacitive (“RC”) delay of the one of the plurality of first gate lines connected to the feedback line.

公开(公告)号：US20180268767A1

公开(公告)日：2018-09-20

申请号：US15684139

申请日：2017-08-23

Applicant: Samsung Display Co., Ltd.

Inventor： KIHYUN PYUN ,  SEUNG-WOON SHIN

IPC: G09G3/36 ,  G02F1/1362 ,  G02F1/1335

CPC classification number: G09G3/3655 ,  G02F1/133509 ,  G02F1/136209 ,  G02F1/136213 ,  G02F2001/1635 ,  G09G3/3614 ,  G09G2320/0219 ,  G09G2320/0257

Abstract: A display apparatus includes a display panel, a data driving part and a gate driving part. The gate driving part outputs gate signals to gate lines, respectively, increases the gate signal from a first gate off voltage to a gate on voltage, decreases the gate signal from the gate on voltage to the first gate off voltage, decreases the gate signal from the first gate off voltage to a second gate off voltage in a slope less than a slope in which the gate signal decreases from the gate on voltage to the first gate off voltage, during P (P is a natural number) horizontal time in which P gate line of the gate lines is driven, and increases the gate signal from the second gate off voltage to the first gate off voltage.