upd161608 Renesas Electronics Corporation., upd161608 Datasheet - Page 49

• Manufacturer Part Number: upd161608
• Description: 176-rgb X 220-dot 1-chip Driver Ic For 262,144-color Tft-lcd Display
• Manufacturer: Renesas Electronics Corporation.

14. GAMMA ADJUSTMENT FUNCTION
adjustment executed by the gray-scale adjustment register and the micro-adjustment register that determines 8 gray-scale
levels.
negative polarities, adjust them to match LCD panel respectively.
The
Furthermore, since the gray-scale adjustment register and the micro-adjustment register have the positive polarities and
μ
PD161608 provides the gamma adjustment function to display 262,144 colors simultaneously. The gamma
Positive
polarity
register
Negative
polarity
register
VRN14
VRP14
VRN03
VRP03
VRP13
VRN13
PKP02
PKP12 PKP11 PKP10
PKP22
PKP32 PKP31 PKP30
PKP42 PKP41 PKP40
PKP52 PKP51 PKP50
PRP02
PRP12 PRP11 PRP10
VRP02
VRP12
PKN02
PKN12 PKN11 PKN10
PKN22 PKN21 PKN20
PKN32 PKN31 PKN30
PKN42 PKN41 PKN40
PKN52 PKN51 PKN50
PRN02
PRN12 PRN11 PRN10
VRN02
VRN12
PKP01 PKP00
PKP21 PKP20
PRP01 PRP00
VRP11 VRP10
PKN01 PKN00
PRN01 PRN00
VRN01
VRN11 VRN10
VRP01 VRP00
VRN00
Figure 14−1. Gray-scale Control
8
Data Sheet S17594EJ2V0DS
Gray-scale
amplifier
MSB
R5
R4
64
R3
V0
V63
R2
R1 R0
64-gray-scale
control
LCD driver
6
<R>
G5
R
G4 G3 G2 G1 G0
DATA Latch
64-gray-scale
control
LCD driver
6
<G>
LCD
G
B5 B4 B3 B2 B1 B0
μ
64-gray-scale
control
LCD driver
6
PD161608
<B>
B
LSB
49