A 0.7mm2 8.54mW FocusNet Display LSI for Power Reduction on OLED Smart-phones

The first-reported FocusNet display LSI integrating an 11-layer fully convolutional neural network and supporting color, contrast, and sharpness visual quality enhancement engine is designed. A FocusNet deep learning (DL) model is proposed to predict the human's focus region applying a tone mapping curve so as to decrease the pixel luminance, leading to 19.5mW of system power saving on OLED smart-phone. Implemented in 10nm CMOS technology, the proposed DL-assisted FocusNet display LSI costs 3.21M gates and 52kB SRAM with 0.7mm
²
area. Operated at 0.9V and 205MHz, this LSI consumes 8.54mW of power dissipation.