SYSTEMS AND METHODS FOR INCREASING A PULSE WIDTH MODULATION FREQUENCY WHILE PRESERVING RESOLUTION

SYSTEMS AND METHODS FOR INCREASING A PULSE WIDTH MODULATION FREQUENCY WHILE PRESERVING RESOLUTION

Systems and methods for preserving a pulse width modulation (PWM) resolution while increasing the frequency of a pulse width modulation (PWM) clock are provided. An electronic display backlight system may include a backlight element and backlight dimming circuitry. The backlight element may be drive...

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Bibliographische Detailangaben
Hauptverfasser: Gu, Ming, Zhang, Yang, Iyer, Venkataraman V, Alnaggar, Omar, Hussain, Asif, Mohtashemi, Behzad, Navabi-Shirazi, Mohammad J, Guo, Feng, Chen, Jingdong
Format: Patent
Sprache:eng
Schlagworte:
ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
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Beschreibung
Zusammenfassung:Systems and methods for preserving a pulse width modulation (PWM) resolution while increasing the frequency of a pulse width modulation (PWM) clock are provided. An electronic display backlight system may include a backlight element and backlight dimming circuitry. The backlight element may be driven according to a pulse width modulation (PWM) signal over a PWM clock cycle equal to a multiple M of a baseline PWM clock frequency associated with a baseline PWM resolution. The backlight dimming circuitry may receive a brightness code of the baseline PWM resolution and generate the PWM signal at least in part by dividing the brightness code by M.