公开(公告)号：US09880109B2

公开(公告)日：2018-01-30

申请号：US14601448

申请日：2015-01-21

Applicant: Samsung Display Co., Ltd. ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Se-Yun Kim ,  Sung-Jea Ko ,  Hoi-Sik Moon

IPC: G01N21/956 ,  G01N21/95

CPC classification number: G01N21/956 ,  G01N2021/9513

Abstract: A display apparatus includes a background image estimator configured to restructure a plurality of pixel signals of a panel image corresponding to a plurality of pixels arranged in an (n×m) matrix array into a row dataset and a column dataset and generate a row background image and a column background image with a Mura defect removed from the panel image using the row dataset and the column dataset through a Principal Component Analysis (PCA), a Mura image generator configured to generate a row binary image and a column binary image including a background and the Mura defect using differences between the panel image and the row background image and between the panel image and the column background image.

公开(公告)号：US11330169B2

公开(公告)日：2022-05-10

申请号：US17158303

申请日：2021-01-26

Applicant: Samsung Display Co., Ltd.

Inventor： Se-Yun Kim ,  Hoi-Sik Moon

IPC: H04N5/232 ,  H04N5/372 ,  G06T7/00

Abstract: A spot detecting apparatus includes a photographing part and a spot detecting part. The photographing part photographs, in a first resolution, an image displayed on a display panel to output first resolution image data, and photograph, in a second resolution, the image displayed on the display panel to output second resolution image data, where the second resolution is higher than the first resolution, and the image displayed on the display panel includes a first spot greater than or equal to a reference size and a second spot less than the reference size. The spot detecting part receives the first resolution image data and the second resolution image data, and subtracts the first resolution image data from the second resolution image data to detect the second spot.

公开(公告)号：US20160012759A1

公开(公告)日：2016-01-14

申请号：US14601448

申请日：2015-01-21

Applicant: Samsung Display Co., Ltd. ,  KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION

Inventor： Se-Yun Kim ,  Sung-Jea Ko ,  Hoi-Sik Moon

IPC: G09G3/00 ,  G09G3/36

CPC classification number: G01N21/956 ,  G01N2021/9513

Abstract: A display apparatus includes a background image estimator configured to restructure a plurality of pixel signals of a panel image corresponding to a plurality of pixels arranged in an (n×m) matrix array into a row dataset and a column dataset and generate a row background image and a column background image with a Mura defect removed from the panel image using the row dataset and the column dataset through a Principal Component Analysis (PCA), a Mura image generator configured to generate a row binary image and a column binary image including a background and the Mura defect using differences between the panel image and the row background image and between the panel image and the column background image.

Abstract translation: 显示装置包括背景图像估计器，被配置为将与排列在（n×m）矩阵阵列中的多个像素相对应的面板图像的多个像素信号重组为行数据集和列数据集，并生成行背景图像 以及使用行数据集和列数据集通过主成分分析（PCA）从面板图像中除去Mura缺陷的列背景图像，配置为生成行二进制图像的Mura图像生成器和包括背景的列二进制图像 和Mura缺陷，使用面板图像和行背景图像之间以及面板图像和列背景图像之间的差异。

公开(公告)号：US09418604B2

公开(公告)日：2016-08-16

申请号：US14222897

申请日：2014-03-24

Applicant: Samsung Display Co., LTD.

Inventor： Se-Yun Kim ,  Hoi-Sik Moon

IPC: G09G3/36

CPC classification number: G09G3/3607 ,  G09G2320/0233 ,  G09G2320/0673 ,  G09G2320/0693 ,  G09G2360/145

Abstract: A method of compensating a left-right gamma difference in a display apparatus using a vision inspection apparatus, which includes sensing sample grayscales displayed on areas defined on a display area of the display apparatus using image sensors of the vision inspection apparatus, estimating intensity values of a left reference boundary at a central area, a left boundary area, a right reference boundary area at the central area and a right boundary area, calculating a first grayscale correction value of the left boundary area such that an intensity estimation value of the left boundary area is substantially equal to an intensity estimation value of the left reference boundary area, and calculating a second grayscale correction value of the right boundary area such that an intensity estimation value of the right boundary area is substantially equal to an intensity estimation value of the right reference boundary area.

Abstract translation: 一种使用视觉检查装置补偿显示装置中的左右伽马差的方法，其包括使用视觉检查装置的图像传感器感测在显示装置的显示区域上定义的区域上显示的样本灰度，估计强度值 在中心区域的左参考边界，左边界区域，中央区域的右参考边界区域和右边界区域，计算左边界区域的第一灰度校正值，使得左边界的强度估计值 区域基本上等于左参考边界区域的强度估计值，并且计算右边界区域的第二灰度校正值，使得右边界区域的强度估计值基本上等于右边的强度估计值 参考边界区域。

公开(公告)号：US09464962B2

公开(公告)日：2016-10-11

申请号：US14280976

申请日：2014-05-19

Applicant: Samsung Display Co., LTD.

Inventor： Se-Yun Kim ,  Hoi-Sik Moon

IPC: G01M11/06 ,  G09G3/20 ,  G09G3/36

CPC classification number: G01M11/064 ,  G09G3/20 ,  G09G3/3644 ,  G09G2320/0233 ,  G09G2320/0626 ,  G09G2320/066 ,  G09G2320/0666 ,  G09G2320/0693

Abstract: A method of compensating a Mura defect of a display apparatus, which includes a display area divided into an upper area and a lower area, includes calculating a sharp grayscale correction value of a predetermined sample grayscale displayed on the display apparatus, where the sharp grayscale correction value is configured to compensate a sharp horizontal Mura between the upper and lower areas, displaying a corrected sample grayscale on the display apparatus based on the predetermined sample grayscale and the sharp grayscale correction value, sensing the corrected sample grayscale displayed on each of a plurality of sample areas defined on the display area based on a Mura type, calculating an intensity profile of the sample grayscale and a target intensity profile configured to compensate the intensity profile of the sample grayscale, calculating a grayscale correction value of the sample area using the intensity profile and the target intensity profile.

Abstract translation: 一种补偿显示装置的Mura缺陷的方法，其包括被划分为上部区域和下部区域的显示区域，包括计算在显示装置上显示的预定样本灰度的清晰灰度校正值，其中，清晰灰度校正 值被配置为补偿上部和下部区域之间的尖锐水平Mura，基于预定样本灰度和锐度灰度校正值在显示装置上显示校正的样本灰度，感测在多个 基于Mura类型在显示区域上定义的样本区域，计算样本灰度级的强度分布和被配置为补偿样本灰度的强度分布的目标强度分布，使用强度分布计算样本区域的灰度校正值 和目标强度分布。

公开(公告)号：US10939036B2

公开(公告)日：2021-03-02

申请号：US15986262

申请日：2018-05-22

Applicant: Samsung Display Co., Ltd.

Inventor： Se-Yun Kim ,  Hoi-Sik Moon

IPC: G06T7/00 ,  H04N5/232 ,  H04N5/372

Abstract: A spot detecting apparatus includes a photographing part and a spot detecting part. The photographing part photographs, in a first resolution, an image displayed on a display panel to output first resolution image data, and photograph, in a second resolution, the image displayed on the display panel to output second resolution image data, where the second resolution is higher than the first resolution, and the image displayed on the display panel includes a first spot greater than or equal to a reference size and a second spot less than the reference size. The spot detecting part receives the first resolution image data and the second resolution image data, and subtracts the first resolution image data from the second resolution image data to detect the second spot.