US 12,451,087 B2
Light module driving method for illumination device
Jon-Hong Lin, Kaohsiung (TW); Peng-Hsiang Wu, Kaohsiung (TW); and Chun-Yi Sun, Kaohsiung (TW)
Assigned to Radiant Opto-Electronics Corporation, Kaohsiung (TW)
Filed by Radiant Opto-Electronics Corporation, Kaohsiung (TW)
Filed on Sep. 13, 2023, as Appl. No. 18/367,505.
Application 18/367,505 is a continuation of application No. 17/947,174, filed on Sep. 19, 2022, granted, now 11,798,503.
Application 17/947,174 is a continuation of application No. PCT/CN2021/110979, filed on Aug. 5, 2021.
Prior Publication US 2024/0005884 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/34 (2006.01); G09G 3/20 (2006.01); G09G 3/36 (2006.01)
CPC G09G 3/3406 (2013.01) [G09G 3/2096 (2013.01); G09G 3/3611 (2013.01); G09G 2320/0233 (2013.01)] 22 Claims
OG exemplary drawing
 
1. A light module driving method for an illumination device, the light module driving method comprising:
in an outputting operation, outputting a light driving signal according to a source;
in a transforming operation, transforming the light driving signal into a plurality of modulated light driving signals according to a compensation and calibration unit; and
in a driving operation, driving a plurality of lighting zones corresponding to a light-emitting diode (LED) module of the light module according to the plurality of modulated light driving signals,
wherein the LED module further includes a plurality of LED integrated circuit (IC) drivers, the plurality of LED IC drivers are configured to drive the LEDs within corresponding lighting zone, and the compensation and calibration unit includes an LED IC drivers compensation and calibration module, and
wherein the LED IC drivers compensation and calibration module is configured to determine a calculation of approximate conversion function to obtain the driving adjustment information of non-uniform characteristics of the plurality of LED IC drivers of the LED module.