Transcription of AN1428, LCD Biasing and Contrast Control Methods
{{id}} {{{paragraph}}}
Example: dental hygienist
AN1428, LCD Biasing and Contrast Control Methods
2012 microchip Technology 1AN1428 INTRODUCTIONThis Application Note provides Methods that can beused to provide Biasing voltages for Liquid Crystaldisplays. This document covers most of the biasingmethods used in the PIC microcontrollers with an TYPESLCD types and LCD waveforms determine the type ofbiasing that is required. There are different kinds ofLCD Biasing , based on the are two electrodes where the LCD waveforms aredriven; they are called SEGMENTs (SEGs) andCOMMONs (COMs). The LCD requires an AC waveformto be applied between these electrodes. Based on the number of SEGMENT and COMMON electrodes, the LCDs can be classified in two or Direct Drive DisplaysStatic or Direct Drive LCDThe static waveform will have only one COMMON elec-trode and multiple SEGMENT electrodes.
2012 Microchip Technology Inc. DS01428A-page 5 AN1428 BIAS LEVEL IN LCD In the discussion of the LCD types, depending on the type and waveform, it is necessary to provide different
Loading..
Tags:
Information
Domain:
Source:
Link to this page:
Please notify us if you found a problem with this document: