公开(公告)号：US20220093022A1

公开(公告)日：2022-03-24

申请号：US17478566

申请日：2021-09-17

Applicant: Silicon Works Co., Ltd.

Inventor： Min Ji LEE ,  Jun Young PARK ,  Ji Won LEE ,  Suk Ju KANG ,  Yu Lim SEO ,  Jung Hyun KIM

IPC: G09G3/00 ,  G06T7/00 ,  G09G3/20

Abstract: Disclosed are an apparatus and method for evaluating the degradation of a display panel, for evaluating a degradation state of a display panel, such as mura. The method of evaluating the degradation of a display panel may be implemented by generating mutual information by using a first histogram distribution vector of a reference frame having a target grayscale level and a second histogram distribution vector of an evaluation frame displayed on a display panel in response to the target grayscale level, generating normalized mutual information of the mutual information, providing a weight into which a cognitive characteristic of a distribution of grayscales of pixels of the evaluation frame is incorporated, and outputting an evaluation value obtained by multiplying the normalized mutual information and the weight.