US 11,741,898 B1
Power management for global mode display panel illumination
Alexander Klement, Kenmore, WA (US); Aaron Jacob Steyskal, Redmond, WA (US); Donghee Nam, San Jose, CA (US); Wenhao Qiao, Milpitas, CA (US); and Wonjae Choi, San Jose, CA (US)
Assigned to Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed by Meta Platforms Technologies, LLC, Menlo Park, CA (US)
Filed on May 6, 2022, as Appl. No. 17/738,830.
Int. Cl. G09G 3/3233 (2016.01); G09G 3/3258 (2016.01); G09G 3/00 (2006.01)
CPC G09G 3/3233 (2013.01) [G09G 3/002 (2013.01); G09G 2320/0693 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power management circuit comprising:
a controller circuit for generating a power control signal, the controller circuit configured to receive a set of configuration parameters from a display device and to generate the power control signal based on the set of configuration parameters, wherein the configuration parameters are determined based on at least one of values stored in a look-up table of the display device or an equation stored in a non-volatile memory of the display device, and the configuration parameters specify one or more voltage levels at one or more time points of one or more power supply voltages; and
a power supply circuit coupled to an output of the controller circuit, the power supply circuit configured to receive the power control signal from the controller circuit, and to generate the one or more power supply voltages having a waveform based on the power control signal.