Innovative material and application of Intematix phosphors. Phosphor Presentation... · Innovative...

Innovative material and application

of Intematix phosphors

David Chen PhD [陳立德] August 13, 2014

2 Confidential and Proprietary Information 2

New Product Development Focus

Pre-formed CCT/CRI Phosphor for Illumination

- IP protected high CRI white solution

Narrow Red Emission Phosphor

–Breakthrough super efficient red for lighting and display

Narrow Green Emission Phosphor (UV excitation)

– For high color gamut, high efficiency backlight


Preformed CCT and CRI Phosphor Paste Instant White (IW) Series

Extension of Remote Phosphor Technology

Remote phosphor demonstrated for the first time in

LED industry that phosphors are marketed and sold

based on CCT and CRI

Innovated material improve the application

Quick and direct phosphor solution delivery.

Covering all CRI>80 demands by Red and Green

phosphor mixture.


Customer benefit

– Strong IP protection covering white conversion by

using Intematix owned Green and Red phosphor.

– Well preparation for CCT/CRI solution ahead.

– Single color bin (3 SDCM) with only phosphor

loading control for wide range of blue excitation

– Wide adoption for customer specific application.

– Unique delivery system using uncurable silicone.

– To simplify phosphors qualification.

Preformed CCT and CRI Phosphor Paste Instant White (IW) Series


Mixing and Dispensing Procedure (simplified)

1) Blending silicone part A and part B 2) Mix IW Paste and silicone at

intended ratio

3) Dispense slurry into LEDs 4) cure and test the LEDs

6 Confidential and Proprietary Information

Settling improvement


Suggested Paste Loading

Product IW Paste Loading

(g of Paste/g of silicone)

IW9027 55:100

IW8027 55:100

IW8030 41:100

IW8040 32:100

IW8050 26:100

IW8060 19:100 *based on 2835 package

• Height of the phosphor slurry as well as the paste loading is

proportional to CIE-y

• When using packages of different depth, paste loading will need to

be adjusted accordingly


(PRELIMINARY)

Packaged Optical Performance Example

Optical Performance Characteristics

Relative Spectral Distribution

Product PL λ

nm

CIEx CIEy D10V

μm

D50V

μm

D90V

μm

IW8030-56-455-01 129 611 0.603 0.389 11 19 32

IW8060-56-455-01 121 608 0.594 0.396 9 16 22

Phosphor Powder Characteristics

0

5

10

15

20

25

30

35

40

45

50

350 400 450 500 550 600 650 700 750 800

Rela

tiv

e I

nte

nsit

y,

a.u

.

Wavelength, nm

3000K 80CRI6000K 80CRI

Product Efficacy CCT CRI R9

IW8030-56-455-01 125lm/W 3000 82.0 9.5

IW8060-56455-01 140lm/W 6000 83.0 30.2


3 step MacAdam ellipses binning

Instant White Paste is designed to provide LED color within

3SDCM from ANSI centers when coupled with blue LED from

450-460nm

CCT(K) x y

2700 0.4578 0.4101

3000 0.4338 0.4030

3500 0.4073 0.3917

4000 0.3818 0.3797

5000 0.3447 0.3553

6000 0.3195 0.3354

2700K 3000K

3500K

4000K

5000K

6000K


Conventional Color Targeting/Recipe Tuning

Increase total phosphor loading

decrease total phosphor

loading

Increase red

percentage

decrease red

percentage

2-Step Process


Center Points

CCT x y

3000 0.4338 0.4030

6000 0.3194 0.3354

0.390

0.395

0.400

0.405

0.410

0.415

0.420

0.420 0.425 0.430 0.435 0.440 0.445 0.450

CIE

y

CIE x

IP8030BlackbodycenterBlue line

0.320

0.330

0.340

0.350

0.360

0.300 0.305 0.310 0.315 0.320 0.325 0.330 0.335 0.340

CIE

y

CIE x

IP8060BlackbodycenterBlue line6000K

Well Targeted CCT


(PRELIMINARY) Thermal Stability

Lumen Maintenance with Temperature

30.0

40.0

50.0

60.0

70.0

80.0

90.0

100.0

110.0

0 20 40 60 80 100 120 140 160 180 200 220 240 260

Rela

tiv

e P

eak,

%

Temperature, C

IP8030

IP8060


Application Guidance


Narrow Red

High NTSC application-excellent color purity

due to narrow band emission

Good quantum efficiency by blue pumping

Reliability improvement……

Two series:

NBR-02 [not released yet]

NBR-02A/ NBR-02B


Narrow Red NBR-02A (K2(TS)F6:Mn4+) Phosphor

D50V: TBD

Cryolite: hexagonal crystal


Excitation and emission spectra of NBR-02A

Excitation Emission

~453nm ~632nm

FWHM: <10nm


White Package (NBR-02A+ Green Nitride) under 60C/90% Humidity Reliability


Red+GAL535(L110073) G/R Loading Flux CE Brightness(%) CE (%) QE PQE Cie x Cie y CCT CRI R9 Abs

#1 BR102F(ref) 91.2/8.8 10.5 : 100 8.694 239.1 100.0% 100.0% 1.007 0.993 0.3007 0.2997 7695 86.2 49.1 0.718

#2 NBR-2A-07 45/55 15 : 100 8.957 244.6 103.0% 102.3% 1.020 1.012 0.3004 0.3001 7711 86.0 87.2 0.714

NBR-02A and CASN 630 Comparison


Narrow Band Green Phosphor (NBG) Excitation Emission

330-410nm

~518nm FWHM: <30nm


Narrow Band Green Phosphor (NBG)

Peak

Wavelength (nm)

CIE X CIE Y FWHM

(nm)

D50 (um)

Narrow Band Green 518 0.17 0.71 27 TBD

Silicate-EG2762 527 0.27 0.62 66 15


NBG and Silicate 525 Comparison

450nm 400nm

Suggested package size

3mm x 7mm (7030)

Using 0.3 to 0.5W chips


High NTSC Solution

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8

G523+ NBR-02A

EG2762+NBR-02A-71

Green Nitride (540nm) + NBR-02

NBG-01 + NBR-02A

NTSC standard

QDG+QDR

Green Nitride (540nm) + NBR-02

Questions?

Innovative material and application of Intematix phosphors. Phosphor Presentation... · Innovative...

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