Sharp LH79524 - Chapter 4 - Color Liquid Crystal Display Controller; Table 4-9. Color STN Intensities from Gray-Scale Modulation

LH79524/LH79525 User’s Guide Color Liquid Crystal Display Controller
Version 1.0 4-11
Table 4-9 shows the intensity that can be obtained from each of the 16 possible 4-bit pal-
ette combinations. Only 15 of the combinations are useful because the values 0b0110 and
0b1000
produce the same result.
NOTES:
1.Duty cycle is determined by (pixels on ÷ (pixels on + pixels off)).
2.Resulting intensity: 000% = black, 100% = white.
Table 4-9. Color STN Intensities From Gray-Scale Modulation
4-BIT PALETTE VALUE DUTY CYCLE
1
RESULTING INTENSITY
2
0b0000 0/90 00.0%
0b0001 10/90 11.1%
0b0010 18/90 20.0%
0b0011 24/90 26.7%
0b0100 30/90 33.3%
0b0101 36/90 40.0%
0b0110 40/90 44.4%
0b0111 45/90 50.0%
0b1000 45/90 50.0%
0b1001 50/90 55.6%
0b1010 54/90 60.0%
0b1011 60/90 66.6%
0b1100 66/90 73.3%
0b1101 72/90 80.0%
0b1110 80/90 88.9%
0b1111 90/90 100.0%