View Full Version : Blue backlight?
Grinder
2001/04/13, 03:55 PM
Hiya -
I am really wanting a blue backlit display - does Crystalfontz have any blue backlits available for small order purchase?
thanx
Grinder
CF Tech
2001/04/14, 01:22 AM
We do not have any serial displays with blue backlights.
We do however, have some STN-negative-blue parallel displays with white LED backlights, and you can find them HERE (http://www.crystalfontz.com/products/1602b-color/index.html)! Those look quite nice, and it is our opinion that the contrast and useability is actually better than a module that has blue backlight.
The problem with blue backlights is that the blue LEDs are still quite expensive, and the blue light is not stopped particularly well by the activated LCD (reducing contrast). To get a really good effect, you need to switch to a more expensive FSTN LCD, which presses the price higher. Some manufacturers are putting a couple of blue LEDs in a side-light configuration on an otherwise unmodified STN display, and although it is a technically "blue backlight" LCD, the results are not as nice as you might hope.
The reasons that blue backlights are not very common are the same reasons that the yellow-green LED backlights combined with the STN-yellow displays are so popular: the LEDs are cheap and bright, and the light they make is stopped very well by the activated LCD.
But prices on electronics are always headed south, and that is also true for the blue and white LEDs, so keep watching and see what comes up. ;)
Grinder
2001/04/26, 11:43 PM
...finally made it back here - had a hard drive crash :mad:
Ok - thanks for the detaled reply. Still hoping for that blue backlit - will keep checking in. Now I am thinking about those cool neg backlits I see here. :D
Grinder
CF Tech
2001/06/05, 11:13 PM
We now carry BLUE parallel displays - not sure if they will work for your application, but here is the announcement regarding the new line:
http://crystalfontz.com/forum/showthread.php?threadid=59
Ferrari355
2001/07/17, 11:48 AM
Yeah I like that yellow green Lcd only wish it was in a serial fourm....
Originally posted by crystalfontz
We now carry BLUE parallel displays - not sure if they will work for your application, but here is the announcement regarding the new line:
http://crystalfontz.com/forum/showthread.php?threadid=59
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