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such as italics or boldface. Or, it can be a graph, such as a pie chart.
Figure 8-4 Pixels on and off
The 320 x 200 graphics mode deserves special note. In this resolution, each pel consists of
four pixels. By turning on and off different numbers of pixels in each pel, the display shows
different shades of gray.
Selecting Video Mode
How your software displays information on the LCD depends on the mode it uses. The
T2150CD series computer supports a number of video modes, which determine the screen
mode (text or graphics), resolution and the number of colors available.
Table 8-1 T2150CDT Video modes
Video
mode
Type Resolution Character
matrix
(pels)
T2150CDT
LCD
colors
CRT
colors
CRT
vertical
refresh
rate
CRT
horizontal
refresh
rate
0, 1 VGA Text 40 x 25
Characters
8 x 8 16 of 256K 16 of 256K 70Hz 31.5KHz
2, 3 VGA Text 80 x 25
Characters
8 x 8 16 of 256K 16 of 256K 70Hz 31.5KHz
0*, 1* VGA Text 40 x 25
Characters
8 x 14 16 of 256K 16 or 256K 70Hz 31.5KHz
2*, 3* VGA Text 80 x 25
Characters
8 x 14 16 of 256K 16 or 256K 70HZ 31.5KHZ
0+, 1+ VGA Text 40 x 25
Characters
8(9) x 16 16 of 256K 16 of 256K 70Hz 31.5KHz
2+, 3+ VGA Text 80 x 25
Characters
8(9) x 16 16 of 256K 16 of 256K 70Hz 31.5KHz
4, 5 VGA Grph 320 x 200 8 x 8 4 of 256K 4 of 256K 70Hz 31.5KHz