Michael G. Helander, PhDPresident & CEO
+1 (647) 479-4074 [email protected]
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at 2019 OLED Korea Conference 1
Material Advances for Transparent OLEDs
What we do
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 2
Advanced Materials by Design
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 3
Developing New Materials is Really HardOne set of properties can map to many different potential structures
• Melting Point• Light Absorption• Crystal Structure• Etc.
PropertyStructureMaterials Science(well understood with theory)
Materials Discovery(hard to predict; one-to-many)
QPU (Quantum Computer)
Integrated Materials Discovery Platform
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 4
Quantum simulation + AI/ML + production validation
CPU GPU
• Vapor pressure• Optical constants• Electronic structure• Film forming • Crystallinity• Etc.
Properties Structure
Production Testing
Production Testing of Candidate Materials
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 5
• 6,000 sqft facility in Toronto, Canada
Facility supported by:
Real World testing closes the loop on software platform
Example: Aerelight for Print™Flexible OLED module for print + packaging
Materials Discovery
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 6
New Market Opportunities for Transparent OLEDs
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 7
Enabling new product categories and applications for OLED displays
1. Large area transparent panel for advertising
2. Medium area transparent panel for AR + Auto
3. Mobile transparent panel for under display sensor
Market Demand for Transparent OLEDs
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 8
Major OEMs looking for solution with high transparency
Leading consumer electronic brands seeking very high transparency OLED displays
AutomotiveAugmented Reality Smart Home Smart Speaker
Large Area Transparent Panel for Advertising
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 9
Transparent signage and windows display for retail
Transparent OLED Signage production in 2019, but transparency is still poor (~45%)
Source: Technavio
Global Transparent Digital Signage Market
Medium Area Transparent Panel for AR + Auto
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 10
Augmented reality display for automotive and knowledge worker
Source: IHS
Automotive brands want transparent OLEDs for HUD, but transparency is too low (~45%)
Mobile Transparent Panel for Under Display Sensor
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 11
Enable IR, camera and other sensors behind active are of display panel
Transparent OLED + Under Display Sensor
Cover glassPOL
TFE/ On TFE touch OLED
Colorless PI
Under display sensor requires high transparency (including in the NIR) to function
Transparent OLED Architectures
Transparent Window
Open Window Open Window
Transparent Pixel
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 12
Both architectures require a highly transparent + conductive cathode solution
Transparent pixel vs transparent window
Cathode Transparency is a Significant Barrier
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 13
Worse for NIR to do strong absorption in metal thin films
Optical Layers Transmission
Glass ~90%
OCA ~100%
Organic ~100%
Cathode 20 – 80%
TFE 95-100%
Transmission = Window Size × Window Transmission
Cathode layer transmittance is limiting factor for transparent OLED
Cathode Transparency is a Significant Barrier
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 14
Worse for NIR to do strong absorption in metal thin films
12 nm
20 nm
Data from Samsung
Transmission = Window Size × Window Transmission
Cathode layer transmittance is limiting factor for transparent OLED
Cathode Conductivity is a Significant Barrier
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 15
0.5V
2.6V
Worse for transparent display due to transparency trade-off
Cathode layer sheet resistance is limiting factor for transparent OLED
Self assembly yields low resistance electrode with micron resolution
ConducTorr™ Electrode Technology
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 16
ConducTorrTM
Patterning Material (CPM)
Micron-size patterning of top electrode
ConducTorrTM
Electrode Material (CEM)
+Patterning
Process
ConducTorr™ Patterning Process
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 17
Multiple MP compatible process methods
(Patterning Material)
substrate
mask
Shadow Mask Deposition
Light Exposurewith Photomask
substratemask
light exposure
Direct Laser Writing (DLW)
substrate
Laser writing
(Electrode Material)
Open-frame CEM Deposition
High Resolution patterning demonstrated down to 6.5 µm features
ConducTorr™ Enables Fine Features
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 18
ConducTorr™ film with 6.5 μm circular mesh (mask patterning)
6.5 µm
ConducTorr™ film with 25 μm lines (UV patterning)
Multiple MP compatible process methods
ConducTorr™ Mask-free Patterning
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 19
Connection to auxiliary electrode in backplane
PDLPDLReflective Anode Auxiliary Electrode
OLED StackPhotoresist
Cathode
Oxide (IZO)
Electrical Contact
ConducTorr™ Mask-free Patterning
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 20
Connection to auxiliary electrode in backplane
PDLPDLReflective Anode Auxiliary Electrode
OLED StackPhotoresist
Cathode
Electrical Contact
ConducTorr™ CPM
ConducTorr™ CEM
adsorption
migration
3V, 6 mA
Top-emission PMOLED sample with ConducTorr™ Mask-free Patterning
ConducTorr™ Demonstrated in 5.2” Mobile AMOLED
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 21
• 5.2” diagonal AMOLED panel
• Vacuum process using existing AMOLED tools and mask set
• No ConducTorr™ related defects
• 120 ppi (37” @ 4K equivalent)
• 10 µm auxiliary electrode width
Width:10 µm
• 15 nm cathode + 600 nm ConducTorr™ Electrode
Mass production ready ConducTorr™ materials now available in kg scale
5.2” AMOLED display fabricated using ConducTorr™ Electrode
Transparent Window
Open Window Open Window
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 22
ConducTorr™ solution can be applied to both transparent OLED architectures
Transparent pixel vs transparent window
CEM as Auxiliary Electrode
Transparent Pixel
CEM as Patterned Cathode
ConducTorr™ Electrode for Transparent OLEDs
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 23
ConducTorr™ Demonstrated in 17” Transparent AMOLED17” Transparent AMOLED display fabricated using ConducTorr™ Electrode
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 24
ConducTorr™ Demonstrated in 17” Transparent AMOLED17” Transparent AMOLED display fabricated using ConducTorr™ Electrode
Fill Factor ~ 15%
8-10 um
400 500 600 700 800 9000
10
20
30
40
50
60
70
80
90
100
110
20 nm CPM on Glass
Tra
nsm
itta
nce (
%)
Wavelength (nm)
99% Aperture Transparency
< 1 Ω/ Sheet Resistance
ConducTorr™ solution enables lowest resistance and highest transparency
~85% Electrode Transparency
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 25
Image viewed through transparent panel
With ConducTorr™Without ConducTorr™
Image viewed through transparent panel
Improved See-through Image Quality with ConducTorr™Eliminates image blurring of see-through image for transparent AMOLED
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 26
Improved See-through Image Quality with ConducTorr™
Transparent display Scene behind panelObserver
TFT
Transmitted Background
Internal TFT Reflection
TFT
Transmitted Background
CEM
Without ConducTorr™
With ConducTorr™
Image Blur
Eliminates image blurring of see-through image for transparent AMOLED
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 27
ConducTorr™ Demonstrated in 17” Transparent AMOLED17” Transparent OLED display fabricated using ConducTorr™ Electrode
• > 65% Transparency at Panel Level
• < 1 Ω/ Sheet Resistance (15% fill factor)
• Eliminates see-through image blue
Live demo of 17” panel at SID 2019:
60.5 17-inch Transparent AMOLED Display With Self-Assembled Auxiliary Electrode
Email to schedule private demo at SID 2019
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 28
ConducTorr™ CEM as Cathode in Transparent OLEDFabrication process using ConducTorr™ to pattern transparent window
OLED organic stack ConducTorrTM CPM on the Open Window
ConducTorrTM CEM with open mask
Transparent Window
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 29
Glass Substrate
HIL
EML
ETL
Cathode
Reflective Anode
HTL1
HTL2
EBL
CPL
ConducTorr™ CEM as Cathode in Transparent OLED
Comparable voltage, efficiency, CIE and lifetime for ConducTorr™ CEM vs MgAg cathode
OLED device performance using ConducTorr™ CEM as cathode
OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 201903/07/2019 30
Dark Side Light Side
ConducTorr™ CEM as Cathode in Transparent OLEDTransparent OLED panels fabricated using ConducTorr™ CEM as cathode
Benefits of ConducTorr™ for Transparent OLEDs
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 31
Mass production ready solution to enable transparent OLED displays
• High Aperture Transparency of 99% (including NIR)
• High Electrode Transparency of > 85% (15% fill factor)
• High Panel Transparency of > 65% demonstrated
• High Conductivity of Rs < 1 Ω/ (15% fill factor)
• Eliminates See-Through Image Blur from TFT
• Materials Ready for Mass Production in 2019
Michael G. Helander, PhDPresident & CEO
+1 (647) [email protected]
03/07/2019 OTI Lumionics Inc. © 2019 ‐ Presented at OLEDs Korea 2019 32
Thank you