The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 14, 2019
Filed:
Apr. 11, 2018
Samsung Display Co., Ltd., Yongin-si, Gyeonggi-Do, KR;
Hyunkoo Lee, Seoul, KR;
Sooyoung Kim, Seoul, KR;
Mintak Lee, Hwaseong-si, KR;
Kyuseok Kim, Asan-si, KR;
SAMSUNG DISPLAY CO., LTD., Yongin-si, Gyeonggi-Do, KR;
Abstract
A method for determining residual images of a display device includes: dividing an image into a plurality of unit blocks; calculating a chroma, a hue, and a lightness of each unit block; applying a filter to the plurality of unit blocks to calculate a chroma difference, a hue difference, and a lightness difference; calculating a plurality of color difference based on the chroma, hue and lightness differences between the unit block and unit blocks adjacent to the unit block, a chroma weight constant, a hue weight constant, and a lightness weight constant; and calculating residual image indices for each unit block, where a residual image index is a maximum value of the plurality of color differences between the unit block and unit blocks adjacent to the unit block. The lightness weight constant is less than the chroma weight constant and the hue weight constant.