HD66781 Datasheet, PDF (186/196 Pages) Renesas Technology Corp – 720-channel Source Driver for a-Si TFT/Low Temperature Poly-Si TFT Panels with 262,144-color display RAM

HD66781
Power-supply/display ON (LPTS = 0: a-Si TFT panel, with HD66783)
Preliminary
Power supply ON Sequence
Power supply ON
(Vcc, IOVcc, Vcc1, Vci)
The power-suppy must be turned on
in the order of IOVcc, Vcc1(781),
Vcc(783), Vcc(781), Vci or
all power-supplies must be turned on
simultaneously.
Power ON reset
1ms
or more
VDD startup
oscillation
start
Instructions before
power supply startup
Power-supply control register setting
(HD66783)
VC, VRH, (PON = 0) settings
serial transfer
VCM, VDV, DC1=3'h0 settings
serial transfer
DK = 1 setting
serial transfer
30ms
or more
Instructions for starting
up power supply(1)
sPower-supply operation start settings
(HD66781)
AP setting
(HD66783)
AP, DC0, BT
(VCOMG = 0, GON = 0) settings
serial transfer
DC1 settings
serial transfer
PON = 1 setting see Note 2)
serial transfer
VGH, VGL start up
100ms
or more
Instructions for starting
Power supply(2)
Power-supply operation start setting
VCOMG = 1
serial transfer
DK = 0 setting
serial transfer
DDVDH, VCL start up
70ms
or more
Instructions for other mode
settings _{Serial transfer}
Display control register settings
NL, GS, SCN settings
serial transfer
other settings
GRAM write
Display ON flow
2 frames
or more
2 frames
or more
Display ON
Instructions before
power supply startup
SAP setting (HD6678)
Display ON (1)
D1-0 = 2'h1
Display ON (2)
GON="1"
serial transfer
Display ON (3)
D1-0 = 2'h3
Display ON (4)
DTE ="1"
Display ON
Display each image by
setting BASEE and OSDE to 1
(Display ENABLE).
Note 1) Do not set GON = 1 while D - 2'h0.
Note 2) AP[2:0] setting must be compleged before or simultaneously with setting PON = 1.
While PON = 1, no change to the AP[2:0] setting will be accepted except AP[2:0] = 3'h0
while the power supply is turned off.
Rev.0.5, July.31.2003, page 186 of 196