Chip-On-Glass LCDs Backlighted With LEDs

Offering a 2.8" diagonal display area, the F-51320 series of 128 x 64-dot chip-on-glass (CoG) LCD modules can display text, graphics or both. The Blue Mode version displays white characters or graphics on a blue background and is backlighted with three white LEDs. These monochrome STN transmissive LCDs put out a typical luminance of 100 nits through the front of the screen and offer a contrast ratio of 6:1. Total power dissipation is only 0.385W.The F-51320 series also includes a Yellow Mode version that offers a black display on a yellow-green background. It incorporates a 28-chip yellow LED backlight and delivers a 4:5.1 contrast ratio and dissipates 1.35W max.Both versions also include mounting features and an IC that integrates on-chip controller, row-and-column driver and booster circuitry. The latter ensures delivery of the proper voltage for driving the LCD panel without using an external dc/dc converter. The Blue ModeF-51320 CoG LCD is priced at $17.20 each/1,000, while the Yellow Mode unit costs $16.74. For more information, call John Cramer at OPTREX AMERICA INC., Plymouth, MI. (734) 416-8500.