公开(公告)号：US11328691B2

公开(公告)日：2022-05-10

申请号：US17142300

申请日：2021-01-06

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunseuk Yoo ,  Hyungjin Kim ,  Hye-Sang Park ,  Heechul Hwang

IPC: G09G5/10

Abstract: A method of displaying an image on a display panel includes displaying an image of a grayscale value A, imaging the image of the grayscale value A with a camera, displaying an image of a grayscale value B, imaging the image of the grayscale value B with the camera, determining a compensation parameter P of the grayscale value A for each pixel in the display panel using the imaged data of the grayscale value A, determining a representative value Q of probability distribution of the compensation parameters of the grayscale value A from the image of the grayscale value A, determining a representative value R of probability distribution of compensation parameters of the grayscale value B from the image of the grayscale value B and compensating an input image data for each pixel using the value P, the value Q and the value R.

公开(公告)号：US10861362B2

公开(公告)日：2020-12-08

申请号：US16173419

申请日：2018-10-29

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunseuk Yoo ,  Wooseok Han ,  Hyungjin Kim

IPC: G09G3/20 ,  G09G5/10 ,  G09G3/00 ,  H04N13/344 ,  H04N13/133 ,  G02B27/01

Abstract: A method of compensating for non-uniform luminance of a display panel including first pixels in a center region and second pixels in a non-center region, the method including displaying a for-compensation image, generating a luminance image by capturing an image of an entire region of the display panel, extracting luminance values of the first pixels from the luminance image by analyzing the luminance image, calculating and storing compensation factors for the first pixels based on the luminance values thereof, calculating compensation factors for the second pixels by performing an interpolation between a reference compensation factor determined for an edge of the non-center region and compensation factors for edge pixels on an edge of the center region when a displaying operation is performed, and compensating image data using the compensation factors for the first pixels and the second pixels when the displaying operation is performed on the display panel.

公开(公告)号：US09684111B2

公开(公告)日：2017-06-20

申请号：US14809725

申请日：2015-07-27

Applicant: Samsung Display Co., LTD.

Inventor： Hyungjin Kim ,  Young-Min Park ,  Jaesuk Yoo

IPC: F21V8/00

CPC classification number: G02B6/0021 ,  G02B6/0031

Abstract: Provided is a display apparatus including a display panel, a light guide plate, a first light source unit, and a first reflective member. The display panel may receive light to display an image. A first recess may be defined on a surface of the light guide plate. The first light source unit may include a plurality of light sources that generate the light and are received in the first recess. The first reflective member may be received in the first recess and disposed between two mutually adjacent light sources of the first light source unit to reflect the light.

公开(公告)号：US20180144719A1

公开(公告)日：2018-05-24

申请号：US15820684

申请日：2017-11-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： EUNHO LEE ,  Hyundae Lee ,  Hynseuk Yoo ,  Hyungjin Kim

IPC: G09G5/10 ,  G09G5/02

CPC classification number: G09G5/10 ,  G09G3/006 ,  G09G5/02 ,  G09G5/06 ,  G09G2300/0452 ,  G09G2320/0233 ,  G09G2320/0276 ,  G09G2320/029 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2360/16

Abstract: A display device and a method of compensating a luminance of the display device enhance display quality and reducing storage capacity of a memory, the display device including: a display panel including a plurality of pixels arranged in a matrix form; a storage unit storing a gray level compensation value of a reference pixel defined by at least one pixel; a compensation circuit receiving a gray level datum and generating a compensated gray level datum by applying the gray level compensation value; and a data driving circuit receiving the compensated gray level datum to generate a data voltage and outputting the data voltage to the display panel. The display panel includes a first compensation area and a second compensation area. The reference pixel in the first compensation area is defined by one pixel and the reference pixel in the second compensation area is defined by m×n pixels, m and n being natural numbers greater than 1.

公开(公告)号：US10388254B2

公开(公告)日：2019-08-20

申请号：US15820684

申请日：2017-11-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Eunho Lee ,  Hyundae Lee ,  Hyunseuk Yoo ,  Hyungjin Kim

IPC: G09G3/00 ,  G09G5/10 ,  G09G5/02

Abstract: A display device and a method of compensating a luminance of the display device enhance display quality and reducing storage capacity of a memory, the display device including: a display panel including a plurality of pixels arranged in a matrix form; a storage unit storing a gray level compensation value of a reference pixel defined by at least one pixel; a compensation circuit receiving a gray level datum and generating a compensated gray level datum by applying the gray level compensation value; and a data driving circuit receiving the compensated gray level datum to generate a data voltage and outputting the data voltage to the display panel. The display panel includes a first compensation area and a second compensation area. The reference pixel in the first compensation area is defined by one pixel and the reference pixel in the second compensation area is defined by m×n pixels, m and n being natural numbers greater than 1.

公开(公告)号：US09885820B2

公开(公告)日：2018-02-06

申请号：US14878844

申请日：2015-10-08

Applicant: Samsung Display Co., Ltd.

Inventor： Hyungjin Kim ,  Hanmoe Cha

IPC: F21V8/00

CPC classification number: G02B6/0035 ,  G02B6/004 ,  G02B6/0065

Abstract: A display apparatus according to an embodiment of the inventive concept may include a display panel, a light guide panel, and the light source. The light guide plate may include a light guide portion, a barrier rib portion, a wavelength conversion portion, and a cover portion. The barrier rib portion may be disposed on an upper surface of the light guide portion. The wavelength conversion portion may be disposed on the upper surface of the light guide portion to be surrounded by the barrier rib portion. The cover portion may be disposed on the wavelength conversion portion and the barrier rib portion, and cover the wavelength conversion portion.

公开(公告)号：US11798464B2

公开(公告)日：2023-10-24

申请号：US17900137

申请日：2022-08-31

Applicant: Samsung Display Co., Ltd.

Inventor： Young-Soo Hwang ,  Joon-Chul Goh ,  Dongjoon Kwag ,  Hyungjin Kim ,  Ji-Eun Park ,  Jaesung Bae ,  Seokha Hong

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2300/0842 ,  G09G2320/0233 ,  G09G2320/048

Abstract: A display device includes a degradation compensator, a controller, a data driver, and a display panel. The degradation compensator generates a first fitting function and a second fitting function based on image data, generates a compensation function through a harmonic mean of the first and second fitting functions, and generates a compensation value based on the compensation function. The controller receives the compensation value, and generates input image data to which the compensation value is applied. The data driver receives the input image data to which the compensation value is applied, and converts the input image data into a data voltage. The display panel includes pixels, in which each of the pixels includes a pixel circuit which receives the data voltage and a light-emitting element electrically connected to the pixel circuit.

公开(公告)号：US10890705B2

公开(公告)日：2021-01-12

申请号：US15857508

申请日：2017-12-28

Applicant: Samsung Display Co., Ltd.

Inventor： Hyungjin Kim ,  Hanmoe Cha

IPC: F21V8/00 ,  G02F1/13357 ,  G02F1/1335 ,  G02F1/1333 ,  G02F1/017

Abstract: A display apparatus according to an embodiment of the inventive concept may include a display panel, a light guide panel, and the light source. The light guide plate may include a light guide portion, a barrier rib portion, a wavelength conversion portion, and a cover portion. The barrier rib portion may be disposed on an upper surface of the light guide portion. The wavelength conversion portion may be disposed on the upper surface of the light guide portion to be surrounded by the barrier rib portion. The cover portion may be disposed on the wavelength conversion portion and the barrier rib portion, and cover the wavelength conversion portion.