The Hitachi HD44780 LCD controller is an alphanumeric dot matrix liquid crystal display (LCD) controller developed by Hitachi in the 1980s. The character set of the controller includes ASCII characters, Japanese Kana characters, and some symbols in two 40 character lines. Using an extension driver, the device can display up to 80 characters. Numerous third-party displays are compatible with its 16-pin interface and instruction set, making it a popular and cheap LCD driver.
Dragon12-P Freescale HCS12/9S12 microcontroller project development board utilizing an HD44780-based LC display
A 20×4-character display
Amber backlight on a 8×2-character HD44780 display
Liquid-crystal display
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A liquid-crystal display (LCD) is a flat-panel display or other electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers. Liquid crystals do not emit light directly but instead use a backlight or reflector to produce images in color or monochrome.
An LCD screen used as a notification panel for travellers
LCD in a Texas Instruments calculator with top polarizer removed from device and placed on top, such that the top and bottom polarizers are perpendicular. As a result, the colors are inverted.
A Casio Alarm Chrono digital watch with LCD
Demonstration digital clock made in 1973 using then recently developed Cyanobiphenyl liquid crystals