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:
Dec. 20, 2022
Filed:
Jun. 24, 2020
Shanghai Harvest Intelligence Technology Co., Ltd., Shanghai, CN;
Jiandong Huang, Shanghai, CN;
Other;
Abstract
A method and device for monitoring luminous intensity of display pixel is provided. The device includes self-luminous LED display, optical glue, photo-detecting array film and processing chip. The optical glue is attached to lower surface of the self-luminous LED display. The photo-detecting array film is disposed under the optical glue. The self-luminous LED display includes display pixels. Each display pixel includes a luminescent layer. The refractive index of the optical glue is smaller than that of the cover glass. The device uses the optical glue to filter the reflected light in the effective area corresponding to each display pixel. After that, the processing chip calculates the luminous intensity of the display pixel according to the first reflected optical signal detected by the photo-detecting array film. When it is determined that the luminous intensity of the display pixel is not changed in the preset period, a feedback signal is transmitted.