NEC LCD8205 - MultiSync - 82" LCD Flat Panel Display Control Manual page 28

7.5. "CONTRAST" Control procedure
7.5.1. Contrast Control (PC, Digital video mode)
CMD Data1
Command Target
(0xF5) (0x88)
Command (0xF5) : Start bit
Target (0x88) : Set bit
Monitor ID (0x00) : Default value -> 0x00
CMD (0xFE) : command data
Parameter(0x04) : ' CONTRAST ' parameter
Value: 0 ~ 100 (range)
7.5.2. Current Contrast state read(PC, Digital video mode)
CMD Data1
Command Target
(0xF4) (0x89)
Command (0xF4) : Start bit
Target (0x89) : Get bit
Monitor ID (0x00) : Default value -> 0x00
CMD(0xFE) : command data
Parameter (0x04) : ' CONTRAST ' parameter
CMD Data1
Command
Value
(0xF1)
Command (0xF1) : Start send bit
Value : Current CONTRAST getting value
0 ~ 100 (range)
Data2 Data3
Monitor ID CMD
(0x00) (0xFE)
Data2 Data3
Monitor ID CMD
(0x00) (0xFE)
Data4 Data5
Parameter
Value
(0x04)
Data4
Parameter
(0x04)