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Solid
-Sta
te L
ight
Sou
rces
for
DLP
®ba
sed
Dis
play
Pro
duct
s
Sajja
d Kh
an
6/13
/201
1
TI C
onfid
entia
l –N
DA
Res
trict
ions
Age
nda
1.W
hat i
s th
e ri
ght L
ED o
r RG
B LE
D
com
bina
tion
for
a ce
rtai
n D
LP c
hip?
2.W
hat a
re th
e m
ajor
diff
eren
ces
betw
een
Lase
r an
d LE
D b
ased
sys
tem
s?
3. H
ow a
typi
cal L
ED b
ased
DLP
sys
tem
wor
ks?
4.Ch
oice
of D
LP C
hip
5.Sy
stem
s Ch
alle
nges
that
nee
d to
be
addr
esse
d
TI C
onfid
entia
l –N
DA
Res
trict
ions
DLP
Chi
pset
s an
d th
eir
appl
icat
ions
(a fe
w e
xam
ples
onl
y)
.55"
XG
A
.3"
WVG
A
DC
4K
Dig
ital C
inem
aLa
mp
Bas
edFr
ont P
roje
ctio
nLa
mp
Bas
edPi
co P
roje
ctor
sLE
D B
ased
TI C
onfid
entia
l –N
DA
Res
trict
ions
Why
sol
id-s
tate
and
DLP
®te
chno
logi
es T
oget
her?
Two
tech
nolo
gies
fam
ous
for
thei
r D
urab
ility
, DLP
®&
sol
id-s
tate
lig
ht s
ourc
es, c
ombi
ne fo
r th
e ul
tim
ate
in P
erfo
rman
ce!
Not
pol
ariz
edN
o ex
tra
loss
es a
s in
3LC
DRe
liabi
lity >1
00,0
00 h
rs a
nd c
ount
ing
No
lam
p re
plac
emen
ts
Tota
l Cos
t of
Ow
ners
hip
Fast
res
pons
e ti
mes
Inst
ant
On/
Off
, no
mot
ion
blur
unlik
e 3L
CD, b
oth
tech
nolo
gies
(DLP
®an
d LE
Ds/
LDs)
hav
e m
icro
seco
nd
resp
onse
tim
esCo
lor
satu
rati
onun
mat
ched
Imag
e Q
ualit
y, a
nd w
ide
colo
r ga
mut
Perc
eive
d Br
ight
ness
Boo
stH
elm
holt
z-Ko
hlra
usch
effe
ct (i
n so
me
case
s)
100%
3k~6
k H
rs.
6k~1
2k h
rs.
Lam
p Ch
ange
LED
LED
50%
Lam
p Ch
ange
Lam
p Ch
ange
12k~
24k
hrs.
(Tim
e)
(Lig
ht O
utpu
t)
TI C
onfid
entia
l –N
DA
Res
trict
ions
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0 40
042
044
046
048
050
052
054
056
058
060
062
064
066
068
070
0
Wav
elen
gth
[nm
]
Radiometric intensity [a.u.]
Red
LED
Gre
en L
ED
Blue
LED
CIE
1931
(2 d
eg)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
00.
10.
20.
30.
40.
50.
60.
70.
8
x
y
Rec.
709
(xy)
LED
Mod
el
How
a t
ypic
al L
ED b
ased
DLP
sys
tem
wor
ks…
Col
or o
verla
pC
olor
ove
rlap
LED
LED
On
time
On
time
Out
put
Out
put
Col
orC
olor
TI C
onfid
entia
l –N
DA
Res
trict
ions
LED
B
LED
G
LED
R
LED
Illu
min
atio
n A
ppro
ache
s
Con
vent
iona
l 3
Cha
nnel
App
roac
h
LED
B
LED
GLE
DR
Dic
hroi
cC
ross
A
ppro
ach
Ben
efits
:•I
n-lin
e sy
stem
•Diff
eren
t cha
nnel
s ha
ve d
iffer
ent e
ffici
ency
•Non
45
degr
ee in
cide
nce
allo
wed
•Sim
pler
coo
ling
solu
tion
•1 c
hann
el h
as h
ighe
r effi
cien
cy
Dra
wba
cks:
•Lar
ger f
orm
fact
or•2
cha
nnel
s ha
ve lo
wer
effi
cien
cy th
an th
e 3rd
chan
nel
Ben
efits
:•C
ompa
ct s
yste
m fo
rm fa
ctor
•All
chan
nels
hav
e al
mos
t the
sam
e ef
ficie
ncy
Dra
wba
cks:
•Diff
icul
t coo
ling
solu
tion
•Non
45
degr
ee in
cide
nce
NO
T al
low
ed
TI C
onfid
entia
l –N
DA
Res
trict
ions
Spec
tral
ove
rlap
0.0E
+00
2.5E
-03
5.0E
-03
7.5E
-03
1.0E
-02
1.3E
-02
1.5E
-02 40
042
044
046
048
050
052
054
056
058
060
062
064
066
068
070
0
Wav
elen
gth
[nm
]
Radiometric intensity [a.u.] Not
es:
•Cho
ice
of c
olor
filte
r is
criti
cal f
or m
ax e
ffici
ency
•Ene
rgy
in c
yan
band
is lo
st d
ue to
dic
hroi
cfil
ter s
lope
•Cho
ice
of g
reen
LED
is im
port
ant t
o m
inim
ize
this
spe
ctra
l ove
rlap
regi
on•D
iffer
ent v
endo
rs h
ave
diffe
rent
cen
ter w
avel
engt
h fo
r Gre
en
TI C
onfid
entia
l –N
DA
Res
trict
ions
A w
ord
on L
ED c
olor
gam
ut
CIE
1931
(2 d
eg)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
00.
10.
20.
30.
40.
50.
60.
70.
8
x
y
Spec
trum
Loc
us
Rec.
709
(xy)
D-Il
lum
inat
e (x
y)
•Rec
709
gam
ut is
clip
ped
here
.•Y
ello
ws
are
not v
ery
good
look
ing
•Mee
ts R
ec70
9 ga
mut
sta
ndar
d•Y
ello
ws
are
good
look
ing
Not
e:•T
hese
are
onl
y tw
o ex
ampl
e LE
Ds
•Diff
eren
t LED
sfr
om d
iffer
ent v
endo
rs b
ehav
e di
ffere
ntly
•The
rmal
sol
utio
n al
so im
pact
s co
lor g
amut
CIE
1931
(2 d
eg)
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
00.
10.
20.
30.
40.
50.
60.
70.
8
x
y
Spec
trum
Loc
us
Rec.
709
(xy)
D-Il
lum
inat
e (x
y)
TI C
onfid
entia
l –N
DA
Res
trict
ions
Colle
ctor
Opt
ics
for
LED
•A
two
lens
ele
men
t col
limat
or o
ptic
col
lect
s lig
ht fr
om th
e LE
D•
Colli
mat
ors
colle
ct u
p to
160
deg
ree
of e
mitt
ed L
ED li
ght
•Ea
ch c
olor
is r
ecom
bine
d us
ing
dich
roic
bea
msp
litte
rpl
ates
(X d
ichr
oic
show
n)•
A s
ingl
e co
nden
ser
lens
cre
ates
an
imag
e of
the
LED
sur
face
at t
he li
ght t
unne
l in
put
Colli
mat
or o
ptic
s
Cond
ense
r op
tic
Whi
te L
ight
Out
put t
o Ill
umin
atio
n op
tics
And
DM
D
Ligh
t tun
nel
Coup
ling
effic
ienc
y is
a fu
nctio
n of
LED
are
a an
d co
llim
ator
col
lect
ion
angl
e
F/1
tele
cent
ric
illum
inat
ion
(typ
ical
)
TI C
onfid
entia
l –N
DA
Res
trict
ions
()
()(
)columns
rows
tilt
tilt
VH
nd#
#2
22
cos
sin
×θ
θπ
DLP
Chi
p et
endu
e:
LED
ete
ndue
:
()2
__
sin
n_angle
_collectio
collimator
height
LED
width
LED
hnw
θπ
×
Eten
due
mat
chin
g
For
max
imum
ligh
t cou
plin
g ef
ficie
ncy:
LED
ete
ndue
= D
LP C
hip
eten
due
Whe
re n
is r
efra
ctiv
e in
dex
of a
n op
tical
mat
eria
l, d
is m
icro
mir
ror
pitc
h, a
nd H
and
V
are
the
num
ber
of p
ixel
s in
a r
ow a
nd a
col
umn
for
a ce
rtai
n re
solu
tion
disp
lay
(e.g
.: 64
0 X
480
for
VGA
res
olut
ion)
.
TI C
onfid
entia
l –N
DA
Res
trict
ions
How
to
sele
ct a
n LE
D fo
r a
DLP
Chi
p…
0.00
0.50
1.00
1.50
2.00
2.50
3.00
3.50
4.00
00.
10.
20.
30.
40.
50.
60.
70.
80.
91
DLP
Chi
p Di
agon
al [i
nch]
One side dimension for square LED [mm]
Cla
ssic
al F
ront
Pro
ject
ion
Em
ergi
ng/P
ico
•LED
die
are
a ne
eded
for
a ce
rtai
n ap
plic
atio
n de
pend
s up
on
DLP
-chi
p ch
osen
, and
opt
ical
des
ign
(F/#
of o
ptic
s)
•In
gene
ral,
the
bigg
er th
e D
LP-c
hip,
the
mor
e th
e LE
D d
ie a
rea
need
ed to
opt
imiz
e br
ight
ness
TI C
onfid
entia
l –N
DA
Res
trict
ions
AlIn
GaP
Red
LED
(lm
v/s
Cur
rent
)
0
0.2
0.4
0.6
0.81
1.2
00.
20.
40.
60.
81
i [A
]
Intensity [a.u.]
05101520253035
lm/W
Inte
nsity
lm/W
020406080100
120
140
160
180
200
02
46
810
RTH
[o C/W
]
LED Drive Power [W]
Ther
mal
Cha
lleng
esD
roo
p:
Rate
of r
etu
rn is
dyn
am
icIt
de
pe
nds
upo
n:Fo
rwa
rd c
urre
nt, I
fTh
erm
al s
olu
tion,
Rth
A m
ore
line
ar L
I re
spo
nse
is d
esi
red Heatsink
FF
Thj
TI
VR
T+
=*
*
LED
The
rma
l Re
sist
anc
e (
Rth)
:LE
D p
ac
kag
ing
is v
ery
imp
orta
ntLo
we
r the
rma
l re
sist
anc
e p
ac
kag
e a
llow
s fo
r driv
ing
the
LED
sha
rde
rm
ore
lum
ens
out
Low
er T
j
Syst
em
The
rma
l Re
sist
anc
e (
Rth)
:Tj
line
arly
de
pe
nds
upo
n sy
ste
mRt
h.Sy
ste
m R
thd
ete
rmin
es
pea
k a
llow
ed
If
TI C
onfid
entia
l -N
DA
Res
tric
tions
Solid
-Sta
te Il
lum
inat
ion
Upd
ate
TI C
onfid
entia
l -N
DA
Res
tric
tions
Arr
ay L
ED
sol
utio
n
Arra
yed
LED
Arra
yed
LED
■A
chie
ved
perf
orm
ance
:–
Brig
htne
ss: 1
800
lm (1
000l
m in
200
9)–
Pow
er: 3
60 W
(ful
l ON
whi
te s
cree
n)
Avg
. pow
er <
250W
(dep
ends
upo
n im
age
cont
ent)
–C
olor
: Wid
er th
an R
ec.7
09 (b
ette
r th
an fl
at L
CD
s)■
Issu
es in
wor
k:–
LED
relia
bilit
y: S
pec
is 6
am
ps @
50%
D
C –
Dem
o 7
amps
82%
DC
–te
stin
g is
ong
oing
–
Siz
e re
duct
ion
activ
ities
. Onc
e ne
w
boar
ds p
erfo
rman
ce q
uant
ified
, will
ac
cord
ingl
y pu
rsue
new
pap
er d
esig
ns,
if ne
eded
.
1800
lm18
00 lm
360
Wat
ts36
0 W
atts
TI C
onfid
entia
l -N
DA
Res
tric
tionsTe
chno
logy
Com
pari
son
Lam
pLE
DB
right
ness
22
00 lm
1800
lmC
olor
Goo
dB
est
Pow
er c
onsu
mpt
ion
250W
360W
Effic
ienc
y8.
8 lm
/W5
lm/W
Ligh
t sou
rce
Life
time
2-5k
hrs
~20k
hrs
Ligh
t sou
rce
type
Gas
/Pla
sma
Sol
id-s
tate
Rel
iabi
lity
issu
esLa
mp
bulb
and
col
or
whe
elN
one
Eco-
frie
ndly
Mer
cury
Gre
enIn
stan
t On/
Off
No
Yes
Tota
l Cos
t of o
wne
rshi
p2x
1x
: Goo
d /
Bett
er: N
eed
impr
ovem
ent
TI C
onfid
entia
l -N
DA
Res
tric
tions
It’s
amaz
ing.
It’s
the
mirr
ors.
TM
Than
k Yo
u
Con
tact
Info
:Sa
jjad
Kha
n Sa
jjad.
Kha
n@ti.
com
TI C
onfid
entia
l -N
DA
Res
tric
tions
Bac
kup
TI C
onfid
entia
l -N
DA
Res
tric
tions
LED
-bas
ed D
LP D
ispl
ay B
lock
Dia
gram
RLE
D
GLE
D
BLE
D
Col
or
Com
bini
ng(D
ichr
oic
Filte
rs)
Illum
inat
ion
Uni
form
ity(In
tegr
ator
Rod
/Tun
nel,
Fly'
s E
ye L
ensl
etar
rays
)D
LP C
hip
Pro
ject
ion
Lens
Scr
een
Ligh
t So
urce
sC
onve
rting
m
ultip
le li
ght
beam
s in
to
one
collin
ear
beam
Mak
ing
sure
that
th
e lig
ht b
eam
has
un
iform
inte
nsity
on
the
scre
en
Mak
ing
digi
tal
imag
e to
be
disp
laye
d on
sc
reen
Mag
nify
ing
th
e im
age
pres
ent o
n th
e D
LP c
hip
on to
th
e sc
reen
View
ing
surfa
ce
Goa
ls a
re to
:M
inim
ize
cost
Incr
ease
effi
cien
cyIn
crea
se b
right
ness
Min
imiz
e #
of c
ompo
nent
sM
inim
ize
syst
em s
ize
(vol
ume)
TI C
onfid
entia
l -N
DA
Res
tric
tions
Des
irab
le L
ED C
hara
cter
isti
cs fo
r pr
ojec
tion
•M
ore
lum
ens,
AN
D fe
wer
Wat
ts (H
igh
lm/W
)
•M
ore
lum
ens
in a
sm
alle
r Are
a (H
igh
lm/m
m2 )
•Lo
w th
erm
al re
sist
ance
LE
D p
acka
ge
•H
ighe
r Jun
ctio
n Te
mp
limit
•H
ighe
r ext
ract
ion
effic
ienc
y
