G
PHYSICS
G09
EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
G09G
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2330/00
Aspects of power supply; Aspects of display protection and defect management
G09G2330/02
Details of power systems and of start or stop of display operation
G09G2330/021
Power management, e.g. power saving