公开(公告)号：US20230358612A1

公开(公告)日：2023-11-09

申请号：US18105575

申请日：2023-02-03

Applicant: Samsung Display Co., Ltd.

Inventor： JOOYOUNG YOON ,  YUNSEOK HAN ,  DOWON YI ,  JOO-YOUNG LEE ,  HYUN-KOO LEE

IPC: G01J3/45 ,  G01J3/02

CPC classification number: G01J3/45 ,  G01J3/021

Abstract: An apparatus for inspecting a display panel includes a light source, a half mirror reflecting a first beam which is a portion of a source beam irradiated from the light source and transmitting a second beam which is another portion of the source beam toward a display panel, a reflective mirror reflecting the second beam transmitting the half mirror and the display panel to return to the half mirror, a panel supporter supporting the display panel between the half mirror and the reflective mirror, a wave plate disposed between the half mirror and the reflective mirror and transmitting the second beam, a rotator rotating the wave plate at a predetermined angle and an imaging detector photographing an interference fringe by the first beam and the second beam.

公开(公告)号：US20170206821A1

公开(公告)日：2017-07-20

申请号：US15388933

申请日：2016-12-22

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： MIN-TAK LEE ,  KYU-SEOK KIM ,  SOO-YOUNG KIM ,  YOUNG-NAM YUN ,  HYUN-KOO LEE

IPC: G09G3/20 ,  G09G3/36 ,  G09G3/3275 ,  G09G3/3225 ,  G09G3/3266

CPC classification number: G09G3/2011 ,  G09G3/20 ,  G09G3/3225 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3611 ,  G09G3/3677 ,  G09G3/3688 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0646 ,  G09G2340/0492 ,  G09G2360/145 ,  G09G2360/16 ,  H01L21/02678 ,  H01L21/02686 ,  H01L27/1274

Abstract: A method of compensating for Mura in a display panel includes displaying a high gray-scale image and a low gray-scale image on a display panel. The displayed images are photographed to generate a high gray-scale luminance image and a low gray-scale luminance image. An ELA Mura for-measurement image having moiré-removed luminance values is generated by dividing luminance values of the low gray-scale luminance image by luminance values of the high gray-scale luminance image. One-dimensional average data is obtained from the ELA Mura for-measurement image. The one-dimensional average data is transformed into frequency-domain data. Target frequency-domain data having a maximum peak value is identified from the frequency-domain data. A direction, an intensity, and a frequency of the ELA Mura are obtained from the target frequency-domain data. A filter is determined based on the obtained information. The filter is applied to image data.