Data Sheet

a-Si TFT LCD Single Chip Driver
240RGBx320 Resolution and 262K color
ILI9341
The information contained herein is the exclusive property of ILI Technology Corp. and shall not be distributed,
reproduced, or disclosed in whole or in part without prior written permission of ILI Technology Corp.
Page 172 of 233
8.3.11. Backlight Control 3 (BAh)
BAh Backlight Control 3
D/CX RDX WRX D17-8 D7 D6 D5 D4 D3 D2 D1 D0 HEX
Command 0 1 ↑ XX 1 0 1 1 1 0 1 0 BAh
Parameter 1 1 ↑ XX 0 0 0 0
DTH_UI
[3]
DTH_UI
[2]
DTH_UI
[1]
DTH_UI
[0]
04
Description
DTH_UI [3:0] : This parameter is used set the minimum limitation of grayscale threshold value in User Icon (UI) image mode.
This register setting will limit the minimum Dth value to prevent the display image from being too white and
the display quality is not acceptable.
DTH_UI [3:0] Description DTH_UI [3:0] Description
4’0h 252 4’8h 220
4’1h 248 4’9h 216
4’2h 244 4’Ah 212
4’3h 240 4’Bh 208
4’4h 236 4’Ch 204
4’5h 232 4’Dh 200
4’6h 228 4’Eh 196
4’7h 224 4’Fh 192
Register
Availability
Status Availability
Normal Mode On, Idle Mode Off, Sleep Out Yes
Normal Mode On, Idle Mode On, Sleep Out Yes
Partial Mode On, Idle Mode Off, Sleep Out Yes
Partial Mode On, Idle Mode On, Sleep Out Yes
Sleep In Yes
Default
Default Value
Status
DTH_UI [3:0]
Power On Sequence 4’b0100
SW Reset No change
HW Reset 4’b0100