公开(公告)号：US11810495B2

公开(公告)日：2023-11-07

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：US10410572B2

公开(公告)日：2019-09-10

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

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.

公开(公告)号：US11862111B1

公开(公告)日：2024-01-02

申请号：US18096352

申请日：2023-01-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Se Whan Na ,  Jong-Hee Na ,  Byoungyoon Jang ,  Yoochae Chung ,  Hyunwook Lim

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2096 ,  G09G2310/0291 ,  G09G2320/0276 ,  G09G2320/041 ,  G09G2320/0626 ,  G09G2320/0673 ,  G09G2330/028 ,  G09G2354/00 ,  G09G2360/16

Abstract: A semiconductor device is provided. The semiconductor device includes: an offset compensation circuit configured to obtain first data including first low-order bit data, second low-order bit data and high-order bit data, select two compensation values from among a plurality of compensation values based on the first low-order bit data, identify a final compensation value by interpolating the two compensation values based on the second low-order bit data, and compensate the final compensation value to generate second data; and a source driver configured to interpolate and output two gamma voltages from among a plurality of gamma voltages based on the second data.

公开(公告)号：US12277889B2

公开(公告)日：2025-04-15

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

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：US11657769B1

公开(公告)日：2023-05-23

申请号：US17895544

申请日：2022-08-25

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byoungyoon Jang ,  Sewhan Na ,  Jonghee Na ,  Yonghoon Yu ,  Hyunwook Lim

IPC: G09G3/3291 ,  G09G3/20

CPC classification number: G09G3/3291 ,  G09G3/2003 ,  G09G2320/0233 ,  G09G2320/0242 ,  G09G2320/0276 ,  G09G2320/0285 ,  G09G2320/0673 ,  G09G2360/16

Abstract: An electroluminescent display device includes a display panel including pixels, a storage circuit, a luminance compensation circuit and a data driver. The storage circuit stores information on a leakage curve indicating a luminance change value of a target pixel according to a change of an input pixel value of a neighboring pixel, the plurality of pixels including the target pixel and the neighboring pixel. The luminance compensation circuit receives input pixel values corresponding to the pixels and generates compensated pixel values respectively corresponding to the pixels by compensating for lateral leakage based on the leakage curve, where the lateral leakage is caused by leakage currents through a common conduction layer of the pixels. The data driver drives the pixels based on the compensated pixel values. The exact (or close) luminance of the input image is realized by compensating for the luminance distortion.