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:
Nov. 04, 2025
Filed:
Aug. 24, 2021
Chongqing Boe Display Technology Co., Ltd., Chongqing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Can Huang, Beijing, CN;
Hongcheng Gao, Beijing, CN;
Jiandong Bao, Beijing, CN;
Dawei Shi, Beijing, CN;
Lu Yang, Beijing, CN;
Wentao Wang, Beijing, CN;
Weitao Ma, Beijing, CN;
Chongqing BOE Display Technology Co., Ltd., Chongqing, CN;
Beijing BOE Technology Development Co., Ltd., Beijing, CN;
Abstract
A detection method for a display screen is provided, including: emitting, by a light source, light onto a surface of a display screen to form a diffuse reflection, where the light source includes an initial first color channel value a1 and an initial second color channel value b1; measuring, by a detector, a first color channel value a and a second color channel value b of the reflected light; calculating a color breakup value lof the reflected light by: l=√{square root over ((a−a1)+(b−b1))}; calculating, in response to (a+b) being not equal to 0, a hue value ε by: ε=|a+b|/(a+b); calculating a color breakup and hue quantization value φ of the reflected light by: φ=l×ε=|a+b|√{square root over ((a−a1)+(b−b1))}/(a+b); and determining whether the display screen is qualified based on determining whether the color breakup and hue quantization value φ is within a predetermined quantization value range.