ugh.... don't really want to get into this just cuz i've seen dozens of these kinds of messages in other forums, and its all info thats searchable. but in short:
1> mostly all laptop displays use 18bit panels
2> the gateway is definately NOT a 32 bit panel since panels only go as high as 24bit
3> 32bit is just a color model consisting of R*256 G*256 B*256 Alpha*256, actual output IS 24bit, 16.7million colors! When you are able to SEE THROUGH YOUR LCD is when YOU'LL HAVE A 32-bit PANEL.
4> believing that this image is going to help you figure out whether you have an 18bit panel that displays 16.2 million colors or a 24 bit panel that displays 16.7 is quite frankly, retarded. Seeing a difference between changing your display settings between 16bit color(65K) vs 32bit(16m) is another story tho, I see that a difference in my backdrop! so what exactly is the point of the pic?
taken from toms hardware:
"A major problem with LCD panels found in most notebooks is that they are limited to an 18-bit color depth (6 bits per color component). Although it is possible to change the color setting in the control panel to 32-bit color, it really makes no difference in visual quality. ATI addresses this issue in the Mobility Radeon 7500 with its new Frame Modulation technology, which brings the 18-bit LCD panels up to 24-bit, improving the overall quality of the display. Frame modulation creates intermediate color levels, which lead to an 8-bit-per-color component that uses temporal and special dithering."
Taken from 3d gpu:
"GeForce FX Go mobile GPUs also include a sophisticated dithering circuit to map the full range of colors from a video onto the gamut of colors on the 18-bit LCD displays used exclusively in notebook PCs. Together, the scaling and dither support ensure that the video playback appears smooth, vibrant, and accurate, regardless of the external display used."