Patent ID: 11908432
Assignee: HYUNDAI MOTOR COMPANY
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A method for automatically controlling a screen brightness of an audio video navigation (AVN) system, the method comprising:
receiving at least one illumination data measured per a predetermined period by an illumination sensor;
controlling so that a screen brightness of a display provided in the AVN system is automatically changed according to a change in the illumination data received from the illumination sensor, based on a default matching relationship between the illumination data and the screen brightness;
generating a new customized matching relationship by correcting the screen brightness matched to each illumination data based on the default matching relationship in accordance with an input of a user who adjusts to enhance or weaken the screen brightness and providing the new customized matching relationship for screen brightness control; and
performing dimming control so that screen brightness is changed on a stage-by-stage basis by a predetermined ratio per a predetermined period, in automatically changing a screen brightness degree depending on the change in the illumination data using the default matching relationship or a customized matching relationship.