公开(公告)号：US20240062698A1

公开(公告)日：2024-02-22

申请号：US18385002

申请日：2023-10-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byoungyoon JANG ,  Yong Hoon YU ,  Se Whan NA ,  Jong-Hee NA ,  Hyeonsu PARK

IPC: G09G3/20

CPC classification number: G09G3/2044 ,  G09G2360/145 ,  G09G2320/0626 ,  G09G2320/0233

Abstract: A display driver integrated circuit (IC) includes a data line driver that drives a first data line connected with a first pixel of a display in response to output image data, and a dithering circuit that receives a brightness value of the display, calculates a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, receives input image data with a first grayscale value, which corresponds to the first pixel, compares the first grayscale value and the first reference grayscale value, and generates the output image data having not the first grayscale value but an output grayscale value when the first grayscale value is smaller than the first reference grayscale value.

公开(公告)号：US20230260445A1

公开(公告)日：2023-08-17

申请号：US17960435

申请日：2022-10-05

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Byoungyoon JANG ,  Yong Hoon YU ,  Se Whan NA ,  Jong-Hee NA ,  Hyeonsu PARK

IPC: G09G3/20

CPC classification number: G09G3/2044 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2360/145

Abstract: Disclosed is a display driver integrated circuit (IC) which includes a data line driver that drives a first data line connected with a first pixel of a display in response to output image data, and a dithering circuit that receives a brightness value of the display, calculates a first reference grayscale value corresponding to the brightness value using a first group of threshold grayscale values, receives input image data with a first grayscale value, which corresponds to the first pixel, compares the first grayscale value and the first reference grayscale value, and generates the output image data having not the first grayscale value but an output grayscale value when the first grayscale value is smaller than the first reference grayscale value.

公开(公告)号：US20200058249A1

公开(公告)日：2020-02-20

申请号：US16285755

申请日：2019-02-26

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Ji Heon OK ,  Yong Hoon YU ,  Joo Hyuk YUM ,  Jae Youl LEE ,  Byoung Yoon JANG

IPC: G09G3/3208

Abstract: A degradation compensation device and an organic light emitting display device including the same are provided. The degradation compensation device includes a degradation rate acquisition unit acquiring estimated degradation rates, estimated with respect to a plurality of respective pixels, based on panel usage information, a digital compensation unit performing digital compensation to lower a digital gradation of each pixel, based on a luminance of a pixel having a maximum degradation rate, among the estimated degradation rates, and an analog compensation unit performing analog compensation to increase luminance of the plurality of pixels by changing an analog voltage supplied to a panel, after performing the digital compensation.

公开(公告)号：US20190156728A1

公开(公告)日：2019-05-23

申请号：US16004926

申请日：2018-06-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong Hoon YU ,  Taehyun KIM ,  Byoungyoon JANG ,  JaeYoul LEE

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/3611 ,  G09G2310/0267 ,  G09G2310/0275 ,  G09G2310/08 ,  G09G2320/0252 ,  G09G2320/029 ,  G09G2320/103 ,  G09G2330/028 ,  G09G2340/16 ,  G09G2370/08

Abstract: A display device is provided. The display device may include pixels arranged in rows and columns, gate drivers connected to the rows of the pixels through gate lines, source drivers connected to the columns of the pixels through source lines, and a timing controller configured to control the gate drivers and the source drivers. The source driver associated with the specific pixel among the source drives may first supply an overdrive voltage corresponding to a final overdrive value to a source line connected to the specific pixel and then supply a source line voltage corresponding to a current value of the specific pixel to the source line. The overdrive controller may change weight values of at least two overdrive values based on a position of the specific pixel and interpolate the at least two overdrive values.