February 5, 2005
Small Form Factor TFT + Touchscreen Survey
Issues: resolution; power requirements; how to address? via pc/microcontroller? max refresh rate - suitable for animation or not? color or bw? backlit? touchscreen?
Product links:
http://store.earthlcd.com/
- ezLCD-001 is a 2.7" 240x160 512 color LCD display - $200 with RS232/USB board
- Wintek WDG243216WEBA 320x240 mono display, 3.5" - $40 but needs controller board
- XLK-5002T (XLK5002T) 6.5" Analog Color TFT LCD Kit with Resistive Touch - $800
- mARMalade 7.8" 640x480 w/ integrated touchscreen - $400
- MTR-EVUE-4BW 4" Monochrome LCD Monitor w/ S-VIDEO in - $90
- Sharp 4LU4EB 4" B&W Video LCD; 383x234 Monochrome LCD - CCFL, NTSC, Analog RGB, 8 Volt DC Mono
Jameco in Belmont sells mostly B/W text-only LCDs.
http://www.circuitcellar.com/avr2004/grand.html ATMEL-based TFT controller - BYO-LCD. By Michal Sieluzycki - Winner of the AVR2004 Design Contest
http://www.hantronix.com/
Sells PDA-sized "Chip on glass" LCD graphics/character displays. this document describes how to address their displays from an 8bit microcontroller (such as the ATMEL)
General links:
http://www.usdc.org/ United Stated Display Consortium - This document has some projections on the future of small screens. Has lists of display manufacturers.
Society for Information Display
Sharp LCD Integration & Applications Guide
LH79520 System-on-Chip for color LCD applications