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Topic: What kind of LCD is this? (Read 452 times) previous topic - next topic


May 13, 2013, 05:33 am Last Edit: May 13, 2013, 05:35 am by pcguru000 Reason: 1

I need a white backlit LCD that has 1 character (numerical is my focus) - aprox. 1" tall by .3" wide

I completed my project using a LED 7-segment display : http://forum.arduino.cc/index.php?topic=163197.msg1227681#msg1227681

However I am finding it is FAR to bright at night time- and barely visible during the day time...

The Trailtech vapor gauge i have is perfect- in the day time the black text appears fully readable, and at night time it has a nice dim white glowy backlight.

Any other suggestions welcome too... I know I could put a dimmer on the LED-7 seg. but I figure it'd also be nice to have this display match more closely the Vapor gauges.


edit- something like this but backlit:

And can i run that via the Arudino?


May 13, 2013, 09:02 am Last Edit: May 13, 2013, 09:30 am by Erdin Reason: 1
That Lumex lcd display in the link has the 'bare' connections. The datasheet tells that the signals are 5v logic, but I don't know how to connect it.

The Trailtech vapor gauge seems to use a normal (but good quality) lcd display.
The lcd display has a reflective back, so you can see it in daylight.
The backlight is probably on the side.

Some displays don't have that reflective back, and need to be lit with the backlight all the time.

An 1 digit lcd display, http://goodlcd.en.alibaba.com/product/374399246-200598541/Standard_7_Segment_1digit_LCD_Panel.html
This project uses an LCD, http://code.google.com/p/arduino-seven-segment/
This uses a LCD driver chip, http://www.43oh.com/2011/11/msp430g-interfaces-to-a-pcf8566-lcd-display-driver/
Again with a driver chip, http://www.flickr.com/photos/n24bass/5342961192/in/photostream/
The driver chip must be somewhere under the display, http://www.electronics-lab.com/blog/?p=19938


I would also look at the OLED displays you can get from Adafruit or off eBay. They have very good contrast and are visible day and night.

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