Jaffery Watson Mendonsa & Hamilton LLP
Split driver backlightsystems and methods
Aspects of the subject technology relate to control circuitry for light-emitting diodes. The control circuitry may operate a light-emitting diode using a multi-peak pulse-width-modulation signal. The control circuitry may include a multi-stage driver having a relatively larger driver stage for providing a direct current through a light-emitting diode and a relatively smaller driver stage configured to cooperate with a pulse-width-modulation controller to pulse-width-modulate a current through the light-emitting diode.
Apple Inc.
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Manisha P. Yanhui Jun Mohammad J. Asif Alejandro Lara Ji Yeoul Jingdong
Pandya Xie Qi Navabi-Shirazi Hussain Ascorra Ryoo Chen