|Re: HP 41C LCD/Display|
Message #2 Posted by Geoff Quickfall on 26 May 2009, 1:14 a.m.,
in response to message #1 by Damian Rios
A few questions come to mind:
1. Has this just started?
2. Is it coincidental with new lighting situation inside?
3. what type of indoor lighting, incandescent, florescent,
4. When viewing the LCD panel indoors what angle are you using
to view the calculator?
5. Is this angle different to the angle you use outside to view
- Viewing angle is important with LCD panels.
- LCD panels fade with age.
- The type of artificial lighting affects clarity and resolution.
- LCD panels on watches have a polarized filter built into the
lense and I am 90% sure that the HP 41 LCD panel is the same.
To my knowledge there is no photo-sensitive system or variable system to alter the 'darkness' of the LCD display as in subsequent models (48, 28 etc). My guess is the LCD is slowely fading as they all do. The non-polarized natural light is the best source for contrast. Try using, if you are not already, an incandescent bright light while inside.
Edited: 26 May 2009, 1:15 a.m.