Integrated Dual-Display-Based 3G Mobile Phone/ Wireless Terminal

Abstract__ In this paper, we describe HW and SW features of the developed prototype of a
hybrid 3G mobile phone and wireless terminal, which provides integral video projection onto
two VGA/2 displays that, when put side-by-side, form the integrated display with the ratio
of the overall width to its overall height, equal to 4:3, so providing the integral video VGA
format and enabling visual presentation of standard full-size web pages, PC mainstream SW
screens (such as e.g. the ones of e-mail clients),multi-media content etc. When not in use, the
displays can be fold back one onto each other, so preserving the industry-standard dimensions
of the device. The two displays that share the image provide it with overall resolution of 640 x
480 pixels per inch. The device is driven by Texas Instruments OMAP 2420 multimedia processor
with ARM1136 core and Linux operating system. In addition, the device is equipped
with specially developped prototypes of unique spring/microgenerator-based battery charger
as well as with ultra-thin mountable foil-based QWERTY keyboard.