STMicroelectronics Powers AMOLED and Super AMOLED Displays
STMicroelectronics Powered AMOLED and Super AMOLED displays that enable today’s advanced handheld devices to deliver high-quality web and video experiences on the move, with a family of ICs consolidating all the display module’s power requirements in a single chip.
AMOLED (Active-Matrix Organic LED) technology enables sharp and vibrant images for mobile multimedia devices such as 3G smartphones and digital-still cameras. These devices do not use backlighting and so offer key advantages over active-matrix LCDs, in terms of power saving and extremely low profile: typical thickness for AMOLED devices is now less than 1mm for the entire display module allowing stylish and space-efficient new designs. iSuppli has predicted annual shipments of phones with AMOLED displays will grow to more than 180 million by 2014.
ST is a major supplier of power supply Integrated circuits for AMOLED displays. The latest STOD03A provides the necessary positive and negative voltages from a single chip, and also improves the performance STOD02. Only six external components needed to complete the power circuit. Alternative approaches require more components and consume more energy, which makes the solution of ST, the most attractive for phone builders.
The STOD03A uses a high efficiency synchronous operation for both voltage otputs to achieve 85% overall efficiency dolshe overall battery life. Other energy-saving features include automatic pulse-skipping operation at low power consumption at light loads, and a true shutdown mode drawing less than one mA enable pin is activated via (EN). ST has achieved high performance by using its silicon-on-insulator “(SOI) technology as part of its latest generation BCD manufacturing process, which allows analog, digital and closely spaced high-power scheme will be built on the same chip.
ST0D03A Powers AMOLED Displays
(Photo from ST Website)
More information about Power AMOLED Displays can be found at STMicroelectronics Website