公开(公告)号：US10979629B2

公开(公告)日：2021-04-13

申请号：US16402168

申请日：2019-05-02

Applicant: Samsung Display Co., Ltd.

Inventor： Min Gyu Kim ,  Se Yun Kim ,  Si Hun Jang ,  Hoi Sik Moon

IPC: H04N5/232

Abstract: An image processing device for a mass produced display device includes an image obtaining capture to provide a single image frame including intensity values for respective coordinates of a display surface of the display device, and an image correcting unit to correct the intensity values of the single image frame of the display surface by using correction amount values with the corresponding correction direction values to provide a de-blurring image frame for the display surface, wherein the image correcting unit includes a correction amount calculating unit to calculate the correction amount values for the respective coordinates by using first derivative values with respect to the intensity values of the single image frame, and a correction direction calculating unit to calculate the correction direction values for the respective coordinates by using second derivative values with respect to the intensity values of the single image frame.

公开(公告)号：US10991346B2

公开(公告)日：2021-04-27

申请号：US16855953

申请日：2020-04-22

Applicant: Samsung Display Co., Ltd.

Inventor： Jeong Woon Lee ,  Min Gyu Kim ,  Sang Cheol Park ,  Hoi Sik Moon

IPC: G09G5/393 ,  G09G3/20

Abstract: A controller includes a bit shifter and a stain compensator. The bit shifter may determine a bit shift value corresponding to a stain compensation value according to an area of a display panel. The bit shift value represents a quantity of integer bits and a quantity of decimal bits. At least one of the quantity of integer bits and the quantity of decimal bits corresponds to a quantity of stain compensation steps. The stain compensator may compensate a grayscale value of input image data using the stain compensation value and the bit shift value to generate compensated image data.

公开(公告)号：US11380241B2

公开(公告)日：2022-07-05

申请号：US17093117

申请日：2020-11-09

Applicant: Samsung Display Co., Ltd.

Inventor： Min Gyu Kim ,  Hee Joon Kim ,  Si Hun Jang ,  Hoi Sik Moon

IPC: G09G3/20

Abstract: A display device according to some embodiments includes a display panel including a plurality of pixels, a timing controller for correcting an input image signal, and for transmitting the input image to the display panel, a memory for storing model correction data for correcting a gray value, the model correction data corresponding to respective models of a plurality of timing controllers, and for storing image quality correction data for correcting a gamma deviation of the display panel, and a correction controller for generating final correction data by using the model correction data and the image quality correction data, and for transmitting the final correction data to the timing controller.

公开(公告)号：US11232736B1

公开(公告)日：2022-01-25

申请号：US17313347

申请日：2021-05-06

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se Yun Kim ,  Min Gyu Kim ,  Sang Cheol Park

IPC: G09G3/20

Abstract: A mura compensation method for a display device in which a data driver and a scan driver disposed at a first side of a pixel unit, includes capturing an image of the pixel unit based on a predetermined first sample gray level; calculating mum luminance of diagonal mura corresponding to the first sample gray level by sharpening the diagonal mura based on light components of the captured image for a first sample area including the diagonal mura; calculating target luminance based on the mura luminance and a luminance distribution of the imaged first sample area; and calculating a first compensation value corresponding to the first sample gray level and a pixel corresponding to the diagonal mura in the first sample area by using the first sample gray level, the mura luminance, and the target luminance.