Abstract-With the advancement of wireless networks and cloud computing, people are becoming increasingly surrounded by a variety of displays -rich electronic devices: TV, Phone, Pad, Notebook and other portable or wearable devices. These electronic products put high demands on the quality of the visual interface. Paper-like displays are reflective and do not require a backlight. They have received much attention after electrophoretic-based electronic paper displays were commercialized in 2004. Paper-like displays combine excellent reading experience with ultra-low power consumption. In particular, their outdoor readability is superior to transmissive liquid crystal displays (LCDs) and organic light emitting devices (OLEDs). In this paper, we give an overview on various paper-like display technologies with emphasis of the status and future development of electrophoretic display and electrofluidic display principles. We focus on both technologies because electrophoretic displays have been commercialized successfully, and electrofluidic display has high potential to deliver video and full color.

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On the price of complexity, the new video compression standard H.264 is more effective than MPEG-4 in compression. Aimed at the motion estimation problem in search rate, a directional search pattern and an improved cross diamond search algorithm which adopts many technologies including prediction of initial search point, suitable search pattern choosing and auxiliary search points are proposed in this paper. Simulation results demonstrate that the improved cross diamond algorithm can effectively enhance search rate under similar PSNR

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