Introduction to Display – Brief History of Display Technologies – LCD vs AMOLED – Working principle of LCD – Power Reduction with RGBW Pixel – Working Principle of AMOLED Display  Power Management for LCD – LCD Pixel Driver Circuit and Power Supply Requirement – Switching DC-DC Converters for LCD Panel – Backlight LED Drivers for LCD Panel – Controlling Brightness and Content Adaptive Brightness Control (CABC)  Power Management for AMOLED Display – Power Supply Requirement for AMOLED – Programming Negative Supply Using SWIRE – Issue with Positive Boost Converter – Buck-Boost Converter for Positive Supply  Board Level Design Guidelines  Conclusion