Title:
LED DIMMING METHOD, APPARATUS AND DEVICE, AND STORAGE MEDIUM
Document Type and Number:
WIPO Patent Application WO/2019/184037
Kind Code:
A1
Abstract:
An LED dimming method, comprising: obtaining an illuminance set according to a preset dimming curve and an initially-set dimming grayscale set; obtaining a corresponding excitation signal set according to the illuminance set, wherein the excitation signal set comprises a voltage signal set or a current signal set; obtaining a measured illuminance curve according to the excitation signal set and the initially-set grayscale set; collecting a subdivision dimming grayscale set according to the measured illuminance curve and the preset dimming curve to enable dimming curves corresponding to the subdivision dimming grayscale set and the illuminance set to be coincident with the preset dimming curve; and adjusting the excitation signal set according to the subdivision dimming grayscale set. The LED dimming method realizes idealized distortionless optical curve effects, so that demands of users are satisfied, and efficient and precise dimming is realized. Also provided are an LED dimming apparatus, an LED dimming device, and a computer readable storage medium.
Inventors:
HUANG RONGFENG (CN)
CHEN ZHIMAN (CN)
CHEN YUNCHOU (CN)
CHEN ZHIMAN (CN)
CHEN YUNCHOU (CN)
Application Number:
PCT/CN2018/084191
Publication Date:
October 03, 2019
Filing Date:
April 24, 2018
Export Citation:
Assignee:
GUANGZHOU YAJIANG PHOTOELECTRIC EQUIPMENT CO LTD (CN)
International Classes:
H05B44/00
Foreign References:
| TW200741639A | 2007-11-01 | |||
| CN106714383A | 2017-05-24 | |||
| CN101556381A | 2009-10-14 | |||
| CN106782283A | 2017-05-31 | |||
| CN101789221A | 2010-07-28 | |||
| CN104113946A | 2014-10-22 |
Other References:
See also references of EP 3570640A4
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF: