公开(公告)号：EP3361239A1

公开(公告)日：2018-08-15

申请号：EP16858943.0

申请日：2016-10-19

申请人： Huawei Technologies Co., Ltd.

发明人： ZHANG, Huiqiang

IPC分类号： G01N21/88 ,  G01N21/95 ,  G01M11/02 ,  G02F1/13

CPC分类号： G01N21/95 ,  G01N21/88 ,  G01N2021/9513 ,  G02F1/1309 ,  G02F2203/69 ,  G06T7/0008 ,  G06T7/001 ,  G06T2207/30121

摘要： The present invention discloses a display defect detection method, apparatus, and device for a display screen. The method includes: identifying a suspected defective pixel from a first image of a front side of a tested display screen, where the first image is shot when the tested display screen is in a solid-color display state; identifying an external smudgy pixel from a second image of the front side of the tested display screen, where the second image is shot when the tested display screen is in a die-out state and the front side is illuminated by a diffuse reflection light source; detecting, for each suspected defective pixel identified from the first image, whether a pixel at a same location in the second image is the external smudgy pixel; and if no, determining the suspected defective pixel as a display defective pixel.