NEC Projector PX803UL User Manual

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4. Multi-Screen Projection
❶ Things that can be done using multi-screen projection
This	projector	can	be	used	singly	or	arranged	in	multiple	units	for	multi-screen	projection.
We	will	introduce	an	example	using	two	projection	screens	here.
Case 1
Using	a	single	projector	to	project	two	types	of	videos	at	the	same	time
[PIP/PICTURE	BY	PICTURE]
Case 2
Using	four	projectors	(resolution:	WUXGA)	to	project	video	with	a	resolution	of	2560	×	1600	pixels
[TILING]
Case 1. Using a single projector to project two types of videos [PIP/PICTURE BY 
PICTURE]
Connection example and projection image
In	the	case	of	[PICTURE	BY	PICTURE]In	the	case	of	[PIP]
On-screen menu operations
Display	[DISPLAY]	→	[PIP/PICTURE	BY	PICTURE]	→	[MODE]	screen	in	the	on-screen	menu	and	select	[PIP]	or	
[PICTURE	BY	PICTURE].
For	details,	please	refer	to	“4-2	Displaying	Tw o	Pictures	at	the	Same	Time”.	(→	page	68) 
						

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Case 2. Using four projectors (resolution: WUXGA) to project videos with a resolution of 
2560 × 1600 pixels [TILING]
Connection example and projection image
On-screen menu operations
1	 Four	similar	videos	are	displayed	when	four	projectors	are	projected.
	 Please	request	the	dealer	to	adjust	the	projection	position	of	each	projector.
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2	 Operate	the	on-screen	menu	using	the	four	respective	projectors	to	divide	the	image	into	four	portions.
	 Display	[DISPLAY]	→	[MULTI	SCREEN]	→	[PICTURE	SETTING]	Screen	in	the	on-screen	menu	and	select	[TIL-
ING].
(1)	In	the	screen	for	setting	the	number	of	horiz ontal	units,	select	[2	UNITS].	(number	of	units	in	the	horiz ontal	direc-
tion)
(2)	In	the	screen	for	setting	the	number	of	ver tical	units,	select	[2	UNITS].	(number	of	units	in	the	ver tical	direction)
(3)	In	the	screen	for	setting	the	horizontal	order,	select	[1st	UNIT]	or	[2nd	UNIT].
	 (look	at	the	screens,	the	one	on	the	left	is	the	[1st	UNIT]	while	the	one	on	the	right	is	the	[2nd	UNIT])
(4)	In	the	screen	for	setting	the	vertical	order,	select	the	[1st	UNIT]	or	the	[2nd	UNIT].
	 (look	at	the	screens,	the	one	at	the	top	is	the	[1st	UNIT]	while	the	one	at	the	bottom	is	the	[2nd	UNIT])
3	 Adjust	the	lens	shift	of	each	projector	to	fine-tune	the	boundaries	of	the	screen.
	 For	further	fine-tuning,	adjust	using	[DISPLAY]	→	[EDGE	BLENDING]	in	the	on-screen	menu	for	each	projector.
	 For	details,	please	refer	to	“4-3	Displaying	a	Picture	Using	[EDGE	BLENDING]”.
 (→	page	72)
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Things to note when installing projectors
•	 Leave	30	cm	or	over	space	between	each	projectors	and	between	the	intake	vent	and	the	wall	for	installing	projec-
tors	side	by	side,	so	that	air	intake	of	the	projectors	are	not	obstructed.	When	the	air	intake	and	discharge	outlet	are	
obstructed,	the	temperature	inside	the	projector	will	rise	and	this	may	result	in	a	malfunction.
30	cm	or	greater
•	 Two	projectors	can	be	stack ed	on	top	of	each	other	(STA CK	setting).	(→	page	156)	Do	not	attempt	to	directly	stack	
three	or	more	projectors.	When	the	projectors	are	piled	up	on	top	of	one	another,	they	may	fall	down,	resulting	in	
damage	and	failure.
•	 Installation	example	when	using	3	or	more	projectors
	 The	following	installation	is	recommended	when	installing	a	combination	of	3	or	more	projectors	for	multi-screen	
projection.
[Installation	example]
Exhaust	vent
Intake	v
ent Cabinet
Air
	e

xhaust
Air
	intak

e Back
Back
 WARNING
Please	request	the	dealer	for	special	installation	services	such	as	when	mounting	the	projector	to	the	ceiling.	Nev er	
carry	out	the	installation	by	yourself.	The	projector	may	fall	down	and	result	in	injury .	Please	use	a	sturdy	cabinet	
that	can	withstand	the	weight	of	the	projector	for	the	installation.	Please	do	not	pile	up	the	projectors	directly	on	
top	of	one	another.
NOTE:
•	 For	the	range	of	the	projection	distance,	please	refer	to	the	Appendix	“Throw	distance	and	screen	size”.	(→ page 171)
4. Multi-Screen Projection  
						

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❷ Displaying Two Pictures at the Same Time
The	projector	has	a	feature	that	allows	you	to	view	two	different	signals	simultaneously.	You	hav e	two	modes:	picture	
in	picture	(PIP)	mode	and	picture	by	picture	(PICTURE	BY	PICTURE)	mode.
The	projection	video	in	the	first	screen	display	is	known	as	the	main	display	while	the	projection	video	that	is	called	
out	subsequently	is	known	as	the	sub-display.
Select	the	projection	function	under	[DISPLAY]	→	[PIP/PICTURE	BY	PICTURE]	→	[MODE]	in	the	on-screen	menu	
(the	default	factory	setting	when	shipped	is	PIP).	(→	page	103)
•	 A	single	screen	is	projected	when	power	is	turned	on.
Picture	in	Picture	function	(PIP)
A	small	sub-display	is	displayed	inside	the	main	display.
The	sub-display	can	be	set	up	and	adjusted	as	follows.	(→	page	104)
•	 Select	whether	to	display	the	sub-display	at	the	top	right,	top	left,	bottom	right	
or	bottom	left	of	the	screen	(the	size	of	the	sub-display	can	be	selected	and	
the	position	can	be	fine-tuned)
•	 Switch	the	main	display	with	the	sub-display
Main Display
Sub-Display
Picture	by	picture	function	(PICTURE	BY	PICTURE)
Display	the	main	display	and	sub-display	side	by	side.
The	main	display	and	sub-display	can	be	set	up	and	adjusted	as	follo ws.	(→ 
page	104)
•	 Selecting	the	display	boundary	(ratio)	of	the	main	display	and	sub-display
•	 Switch	the	main	display	and	sub-display
Main Display Sub-Display
Input terminals that can be used for the main screen and sub-screen.
The	main	screen	and	sub-screen	can	provide	the	following	input	terminals.
•	 The	main	display	and	sub-display	support	computer	signals	up	to	WUXGA@60HzRB.
Sub-Display or additional display
HDMI DisplayPort BNCBNC(CV) BNC(Y/C)COMPUTER HDBaseT SLOT
Main Display HDMI
NoYe s
Ye sYe sYe s
NoNo
DisplayPort Ye sYe sYe sYe s
BNC Ye sYe s
NoNo
Ye s Ye s
BNC(CV) Ye sYe s Ye sYe sYe s
BNC(Y/C) Ye sYe s Ye sYe sYe s
COMPUTER Ye sYe s NoYe s Ye s NoYe s Ye s
HDBaseT NoYe sYe sYe sYe s NoNo
SLOT NoYe sYe sYe sYe s NoNo
NOTE:
•	 Some	signals	may	not	appear	depending	on	the	resolution.
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Projecting two screens
1.	 Press	the	MENU	button	to	display	the	on-screen	menu	and	select	[DISPLAY]	→	[PIP/PICTURE	BY	PICTURE].
	 This	displays	the	[PIP/PICTURE	BY	PICTURE]	screen	in	the	on-screen	menu.
2.	 Select	[SUB	INPUT]	using	the	▼/▲ buttons, and press the ENTER button.
	 This	displays	the	[SUB	INPUT]	screen.
3. Select the input signal using the ▼/▲ buttons, and press the ENTER button.
	 The	[PIP]	(PICTURE	IN	PICTURE)	or	[PICTURE	BY	PICTURE]	screen	set	up	under	[MODE]	is	projected.	(→	page	
103)
•	 When	the	signal	name	is	displayed	in	grey,	this	means	that	it	cannot	be	selected.
•	 The	signal	can	also	be	selected	by	pressing	the	PIP/FREEZE	button	on	the	remote	control.
4. Press the MENU button.
	 The	on-screen	menu	will	disappear.
5.	 When	returning	to	single	screen,	display	the	[PIP/PICTURE	BY	PICTUE]	screen	one	more	time	and	select	
[OFF]	in	the	[SUB	INPUT]	screen	of	the	Step	3.
TIP:
•	 During	dual-screen	projection,	if	the	selected	input	is	not	supported	by	the	sub-screen,	the	sub-screen	will	appear	as	a	black	
screen.
4. Multi-Screen Projection  
						

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Switching the main display with the sub-display and vice versa
1.	 Press	the	MENU	button	to	display	the	on-screen	menu	and	select	[DISPLAY]	→	[PIP/PICTURE	BY	PICTURE].
	 This	displays	the	[PIP/PICTURE	BY	PICTURE]	screen	in	the	on-screen	menu.
2.	 Select	[PICTURE	SWAP]	using	the	▼/▲ buttons and then press the ENTER button.
	 Display	the	screen	for	switching	the	display	positions.
3.	 Select	[ON]	using	the	▼ button and then press the ENTER button.
	 The	video	of	the	main	display	will	switch	with	that	of	the	sub-display.
When	turned	“OFF” When	turned	“ON”
Sub-display
	video
Main
	displa

y
	video
Sub-displa
 y
	video
Main
	displa
 y
	video
	 The	signal	output	from	the	HDMI	OUT	terminal	does	not	change	even	if	the	display	positions	are	switched.
4. Press the menu b
utton.
	 The	on-screen	menu	will	disappear.
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Restrictions
•	 The	following	operations	are	enabled	only	for	the	main	display.
•	 Visual	adjustments
•	 Video	magnification	/	demaginification	using	the	partial	D-ZOOM/ZOOM	+/−	buttons.
	 However,	magnification	/	demaginification	is	up	to	the	boundary	set	in	[PICTURE	BY	PICTURE].
•	 TEST	PATTERN
•	 The	following	operations	are	enabled	for	both	the	main	display	and	sub-display.	These	operations	cannot	be	ap-
plied	individually.
•	 Momentary	deletion	of	video
•	 Video	pause
•	 [PIP/PICTURE	BY	PICTURE]	cannot	be	used	when	a	3D	video	is	being	displayed.
•	 When	using	the	[PIP/PICTURE	BY	PICTURE]	function,	[CLOSED	CAPTION]	and	[DYNAMIC	CONTRAST]	can	
be	used.
•	 [PIP/PICTURE	BY	PICTURE]	cannot	be	used	when	the	signal	input	has	a	resolution	of	1920	×	1200	or	more.
•	 The	HDMI	OUT	terminal	has	a	repeater	function.	The	output	resolution	is	limited	by	the	maximum	resolution	of	
the	connected	monitor	and	projector.
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❸ Displaying a Picture Using [EDGE BLENDING]
A	high	resolution	video	can	be	projected	on	an	even	bigger	screen	by	combining	multiple	projectors	on	the	left,	right,	
top	and	bottom.
This	projector	is	equipped	with	an	“EDGE	BLENDING	Function”	that	makes	the	edges	(boundaries)	of	the	projection	
screen	indistinguishable.
NOTE:
•	 For	projector	throw	distances,	refer	to	“Throw	distance	and	screen	size”	on	page	171.
•	 Before	performing	the	Edge	Blending	function,	place	the	projector	in	the	correct	position	so	that	the	image	becomes	square	in	
the	appropriate	size,	and	then	make	optical	adjustments	(lens	shift,	focus,	and	zoom).
•	 Adjust	the	brightness	of	each	projector	using	[ADJUST]	under	[LIGHT	MODE].	After	adjusting	the	brightness,	you	can	keep	the	
set	brightness	level	by	turning	ON	the	[CONSTANT	BRIGHTNESS]	mode.	In	addition,	use	[REF.	WHITE	BALANCE]	to	adjust	the	
[CONTRAST]	and	[BRIGHTNESS].
Before	explaining	use	of	the	Edge	Blending	function
This	section	explains	the	case	for	“Example:	Placing	two	projectors	side	by	side”.	As	shown,	the	projected	image	on	
the	left	is	referred	to	as	“Projector	A”	and	the	projected	image	on	the	right	is	referred	to	“Projector	B”.	Unless	otherwise	
specified	hereinafter,	the	“projector”	is	used	to	mean	both	A	and	B .
Example: Placing two projectors side by side
Edge	Blending	area
Projected
	area Projected	area
Projector
	A Projector	B
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Preparation:
•	 Turn	on	the	projector	and	display	a	signal.
•	 When	performing	settings	or	adjustments	using	the	remote	control,	enable	the	[CONTROL	ID]	so	as	not	to	activate	
the	other	projectors.	(→	page	125)
Setting the overlap of projection screens
①
	Enable	[EDGE	BLENDING].
1. Press the MENU button.
	 The	menu	will	be	displayed.
2.	 Select	[EDGE	BLENDING].
	 The	[EDGE	BLENDING]	screen	will	be	display ed.	Align	the	cursor	with	[MODE]	and	then	press	the	ENTER	button.	
The	mode	screen	will	be	displayed.
3.	 Select	[MODE]	→	[ON]	and	press	the	ENTER	button.
	 This	enables	the	Edge	Blending	function.	The	f ollowing	men u	items	are	a vailable:
	 [TOP],	[BOTTOM],	[LEFT],	[RIGHT],	and	[BLACK	LEVEL]
4.	 Select	[RIGHT]	for	Projector	A	and	[LEFT]	for	Projector	B.
	 Press	the	ENTER	button.
	 The	following	items	are	available:
	 [CONTROL],	[MARKER],	[RANGE],	and	[POSITION]
4. Multi-Screen Projection