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LCD (Liquid Crystal Display) Circuits
LCD Circuits: # - C     D - K      L - M     N - S       T- Z
Last Updated on: Wednesday, July 16, 2014 06:35 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

128x64 LCD assembly Driver for AT90S2314 -  Here you will find a source code to drive a  graphics  LCD display 128x64 pixels with  AT90S2313.The  connections between LCD and  AVR, you will find  them to the source code.….(circuit / schematic design added 6/06)
1-Wire 8-bit LCD Reference Design  -  This application note demonstrates creating a 1-Wire® 8-bit LCD. The code to drive the DS2408 LCD display is also provided. (app note added 08/08/08)
2 Wire LCD Interface using PIC16cf84 -  (electronic schematic / circuit added 4/02)
2-Way Multiplexed LCD Drive & Low Cost A/D-Converter using V/F Techniques with COP8 MicroControllers -  National Semiconductor Application Note  (app note added 2/06)
2-Wire LCD Interface using PIC16cf84 -  Alphanumeric LCD displays have become very popular for microcontroller applications because y can add....(added 4/05)
3 Output TFT LCD Bias Supply with a Boost Regulator-MP1542-DN0005 -  Monolithic Power Systems, Inc Design Note (added 6/06)
5W PLL Stereo Transmitter with LCD -  Here's PLL FM transmitter circuit from china.  This circuit uses the familiar 2SC1971 for final power amplifier stage. …(electronic circuit added 08/08/08)

A Fourth Generation of LCD Backlight Technology -  AN65 Linear TechnologyThis publication, LTC's fourth effort devoted to LCD backlighting in as many years, treats  subject comprehensively. The text considers lamps, display and layout induced losses, circuitry, efficiency related issues, optimization and measurement techniques. Twelve appended sections cover lamp types, mechanical design, electrical and photometric measurement, layout, circuitry and related topics.
A Precision Wideband Current Probe for LCD Backlight Measurement -  DN101  Design Notes (Linear Technology) (app note added 6/06)
Active-Matrix LCD Bias Supply Operates from Battery Input -  02/03/00 EDN-Design Ideas.....Many active-matrix-LCD applications need multiple voltages for thin-film-transistor (TFT]bias. Typically, three voltages are necessary  5V for  column driver; a positive voltage, such as 10V; and a negative voltage, such -5V, for  TFT gate drive, or row driver. For handheld electronic devices, a battery must..... [Design Idea by Michael Shrivathson, National Semiconductor Corp, Santa Clara, CA]
AN14 Transistor Considerations for LCD Backlighting -  Zetec Semiconductors  Applications Notes A study of  parametric requirements of Bipolar transistors for  self-oscillating resonant "Royer" inverter with respect to LCD backlighting, including circuit behaviour,  voltage ratings of most relevance to ensure optimised device selection, and compact packaging options   (app note added 2/06)
AN179: Interfacing a Color LCD Module -  (app note added 6/07)
AN-350: Designing an LCD Dot Matrix Display Interface -  National Semiconductor Application Note  (app note added 2/06)
AN563: Using PIC16c5x MicroControllers as LCD Drivers -  Microchip Application Note Published 26-Aug-97.....[App Note]
AN587: Interfacing Picmicro® Mcus to an LCD Module -  Microchip Application Note Published 26-Aug-97.....[App Note]
AN658: LCD Fundamentals using PIC16c92x MicroControllers -  Microchip Application Note Published 26-Aug-97  (app note added 2/06)
AN-673: 2-Way Multiplexed LCD Drive & Low Cost A/D-Converter using V/F Techniques with COP8 MicroControllers -  National Semiconductor Application Note  (app note added 2/06)
AN-953: LCD Triplex Drive with COP820cj -  National Semiconductor Application Note  (app note added 2/06)
Audio noise generator drives earphones or small speaker  -  This is a circuit that generates white noise, rolled-off to drive earphones or a small speaker. White noise creates is a "rushing" sound, which sounds something like air rushing by your ear(s). White noise would be flat with frequency, and since this circuit rolls off within the audio range, I refer to it as "rolled-off" noise. White (or rolled-off) noise(circuit added 6/07)
AVR 2x16 LCD & 4x4 keypad driver -  A very simple circuit to experiment with AT90S2313, 2x16 LCD display and 4x4 keypad. The clock based on 4 MHz crystal, but you can use anyone crystal between 1-4 MHz. The keys with the name "A", "B"....."F" are typed to the LCD with numbers 10-16. Because the AVR have only 15 I/O pins we are working the LCD display with 4-bit databus. The 4 resistors (10K) are to protect the AVR from the shortcuts as the coloumn of the keypad is change.....(circuits added 05/09)
Circuit provides effective LCD drive -  09/28/00 EDN-Design Ideas  EDN is migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
Circuit Tricks Increase LCD Contrast -  04/24/97 EDN-Design Ideas..... EDN is migrating links. This link is not verified.  Search the "title" + "EDN" for new link.
Connect a 2x16 characters LCD display to a 4x4 keypad -  Connect some 2x16 characters LCD display and 4x4 keypad with AVR microcontroller  (electronic design added 03/04/05)

LCD Circuits: # - C     D - K      L - M     N - S       T- Z

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