Data Sheet
Product Specification 
Ver 1.2                                                                                           17 / 43 
(15) Partial Display Refresh Command (R16h) 
Action  W/R  C/D  D7  D6  D5  D4  D3  D2  D1  D0 
Partial Display Refresh   
0  0  0  0  0  1  0  1  1  0 
0  1  DFV_EN              X[8] 
0  1  X[7]  X[6]  X[5]  X[4]  X[3]  0  0  0 
                  Y[8] 
0  1  Y[7]  Y[6]  Y[5]  Y[4]  Y[3]  Y[2]  Y1]  Y[0] 
0  1                W[8] 
0  1  W[7]  W[6]  W[5]  W[4]  W[3]  W[2]  W[1]  W[0] 
                  L[8] 
0  1  L[7]  L[6]  L[5]  L[4]  L[3]  L[2]  L[1]  L[0] 
While user sent this command, driver will refresh display (data/VCOM) base on SRAM data and LUT. 
Only  the  area (X,Y,  W, L) would update,  the others  pixel  output would follow  VCOM LUT  After  display  refresh  command, BUSY_N 
signal will become “0”. 
Note: X and W should be the multiple of 8.   
DFV_EN: data follow VCOM function on display area.   
DFV_EN=1: Only effective in B/W mode, if pixel from “New data” SRAM equal to “Old data” SRAM on display area, this pixel output 
would follow VCOM LUT.   
DFV_EN=0: Data doesn’t follow VCOM LUT. 
This command only active when BUSY_N = “1”. 
(16) VCOM LUT (LUTC)    (R20H) 
This command builds Look-up Table for VCOM 
(17) W2W LUT (LUTWW)    (R21H) 
This command builds Look-up Table for White-to-White. 
(18) B2W LUT (LUTBW/LUTR)    (R22H) 
This command builds Look-up Table for Black-to-White. 
(19) W2B LUT (LUTWB/LUTW)    (R23H) 
This command builds Look-up Table for White - to- Black. 
(20) B2B LUT (LUTBB / LUTB)    (R24H) 
This command builds Look-up Table for Black - to- Black. 
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