LCD Mobile Devices with Automatic Brightness Adjustment - Samsung

Samsung Electronics announced a 2.1" LCD panel for  mobile devices that will provide qVGA resolution and comes with automatic brightness adjustment to enhance readability of the display and to reduce the power consumption.

The new LCD panel also has a temperature compensation sensor in its LCD driver chip, maintaining a steady operational mode regardless of any environment temperature change. The LCD panel consumes 20-30 %  less electric power than other displays with the same resolution and size.

To enable extremely slim mobile designs, the new LCD mobile display makes use of a proprietary technology called Adaptive Brightness Control (ABC) that is designed with an ultra-slim black matrix embedded within the display's structure that measures no more than a single millimeter. The ABC is part of a unique, cost-saving architecture that consists of tiny, highly responsive circuit sensors built into the display panel, which eliminates the need for photo-sensors and complex signal processing circuits.

The signal processing function within the display driver IC converts ambient light measurements from the sensors into pulse-width modulation signals. Those PWM signals then automatically signal the LED controller in the LCD backlight unit to adjust the screen brightness to provide optimal readability as outside lighting conditions change.

Source: LCD Display for Mobile Devices - Samsung