HD66781 Datasheet, PDF (181/196 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
Preliminary
Table 76 Source outputs in non-display area
PTS[2:0]
Source output in non-display
area
Positive polarity Negative polarity
Non-display area
Grayscale amp operation
Non-display area
Step-up clock frequency
3’h0
V63
V0
V0 to V63
DC0,DC1Setting
3’h1
Setting disabled Setting disabled
-
-
3’h2
GND
GND
V0 to V63
DC0,DC1Setting
3’h3
Hi-Z
Hi-Z
V0 to V63
DC0,DC1Setting
3’h4
V63
V0
V0,V63
DC0,DC1Setting x1/2
3’h5
Setting disabled Setting disabled
-
-
3’h6
GND
GND
V0,V63
DC0,DC1Setting x1/2
3’h7
Hi-Z
Hi-Z
V0,V63
DC0,DC1Setting x1/2
Note 1) Gate outputs in non-lit drive area can be controlled by off-scan mode (with PTG bits).
Note 2) The operation halt of grayscale amplifier and the slowdown of step-up clock frequency are valid only
to the non-display area.
Note 3) When DC[4:3]=2’h3, the frequency of step-up clocks in the non-display area are not slowed down
half even if PTS[2:0] is set to 4, 6 or 7.
Table 77 Gate outputs in non-display area
PTG[1:0] ^{DISPTMG output}
Gate output in non- Source output in non-
display area
display area
2’h0
Normal drive
Normal scan
PTS setting
2’h1
GND
DISPTMG (Fixed)
PTS setting
2’h2
Internal drive
Interval scan
PTS setting
2’h3
Setting disabled
-
-
Note 1) When the interval scan is executed, make setting for the frame alternating drive.
Table 78
Interval gate scan frequency
ISC[3:0]
4’h0
4’h1
4’h2
4’h3
4’h4
4’h5
4’h6
4’h7
4’h8
4’h9
4’hA
4’hB
4’hC
4’hD
4’hE
4’hF
Scan frequency
Setting disabled
3 frames
5 frames
7 frames
9 frames
11 frames
13 frames
15 frames
17 frames
19 frames
21 frames
23 frames
25 frames
27 frames
29 frames
31 frames
When (fFLM) = 60Hz
–
50ms
84ms
117ms
150ms
184ms
217ms
251ms
284ms
317ms
351ms
384ms
418ms
451ms
484ms
518ms
Rev.0.5, July.31.2003, page 181 of 196