22.2: Multi‐Resolution for Low Power Mobile AMLCD

Abstract

This paper describes a highly versatile "System LCD" which has been developed for mobile applications. A key feature of the display is a multi-format capability to enable both the color depth and the spatial resolution to be dynamically controlled according to the application. This advanced functionality is realized by integrating a novel source-driver, binary-driver and clock-generator onto the panel. A 3.7" LCD with three principal display formats has been successfully fabricated using low temperature CG-Silicon technology. The power consumption in each format has been measured at 14mW for VGA 8mW for QVGA/Full-color and 2mW for QVGA/Monochrome. We believe this versatile display technology, which combines both high performance and low power consumption, will be essential for the next generation of mobile products. a) Full-color VGA b) Full-color QVGA Figure 5: Photographs of fabricated 3.7" panel SID 02 DIGEST • 797

Technology Trend and Application of TFT-LCDs

“…The key enabling technology for the realization of "System LCD" is a high performance low-temperature polysilicon (LTPS) thin-film transistor (TFT) process (1)(2)(3)(4)(5)(6). In collaboration with Semiconductor Energy Laboratories Co. Ltd, we have developed a novel crystallization technology for high performance TFTs known as "CG Silicon®".…”

44.3: Flexible Electrophoretic Displays with Jet‐Printed Backplanes

“…Recently, printing methods have been applied in various fields of display fabrication. Screen printing has been used to pattern the active-matrix backplane in a liquid powder display [4]. Roll printing, based on a gravure-type printing method, was explored for resist printing to replace photolithography in the fabrication of a liquid crystal display (LCD) [5].…”

A Fully Monolithic Wireless Display System

“…At the heart of these devices, the high performance active matrix LCD (AMLCD) has become a window for communication and interactivity in the ubiquitous society. The advent of advanced low-temperature thin film transistor (TFT) processes, such as Sharp's Continuous Grain (CG) Silicon technology, has made it possible to fabricate 'System LCDs', which feature data drivers, ambient sensors, touch sensors with scanning capability and other functional elements integrated directly onto the display substrate (1), (2), (3), (4). This paper addresses the latest developments in this field, namely the provision of monolithic wireless connectivity…”