mr_ghz
Full Member level 5
I use a b/w LC-Display QVGA size (320*240 pixels). To achive grayscales I use a frame rate modulation. The Framerate is 75Hz. Now there are two problems (not only with this configuration, they are common with this kind of LCD):
- I have crosstalk on the screen. If I have a white background and a dark box of about 80 by 80 pixels in the middle of the screen, i have lines (shadows) in the background area.
- The frame rate modulation gives stripes in the picture that moves. These effects are best visible in grayscales.
I know WHY these effects occur, but I'm looking for possibilities to minimize them. One idea I have is to rise the frame rate (but this is not within specification of manufacturer) this could give less 'stripes'. I heard something about modulating the driving voltage.
Has anyone other ideas, suggestions, ... ?
Bye
- I have crosstalk on the screen. If I have a white background and a dark box of about 80 by 80 pixels in the middle of the screen, i have lines (shadows) in the background area.
- The frame rate modulation gives stripes in the picture that moves. These effects are best visible in grayscales.
I know WHY these effects occur, but I'm looking for possibilities to minimize them. One idea I have is to rise the frame rate (but this is not within specification of manufacturer) this could give less 'stripes'. I heard something about modulating the driving voltage.
Has anyone other ideas, suggestions, ... ?
Bye