Bit Slice Addressing of Fast Switching Bi-Stable Displays and Multi-Bit Slice Addressing of Active Matrix Liquid Crystal Displays

Abstract

Bit slice addressing (BSA) is useful to display grayscales in fast switchable bi-stable displays and active matrix liquid crystal displays (AMLCD). The display is used as a dynamic mask and intensity of light source that illuminates the display is controlled to be proportional to the bit-weight of the bit that was used to refresh the display. A viewing angle characteristic that is independent of grayscales, color purity of images, reduction of motion blur, wide voltage margin to switch the state of pixels, option to reduce power consumption of backlight and low hardware complexity of data drivers are some of the advantages of BSA. Multi-BSA is also proposed to drive the state-of-the-art active-matrix LCDs.Index Terms-Addressing, bi-stable displays, digital micro mirror device (DMD), light modulators, liquid crystal displays (LCDs), matrix displays.