MicroLED Technology Data-Vμ microLED Displays
MicroLED Technology
Data-Vµ microLED Displays
COMPANY CONFIDENTIAL
Plessey Innovations
0.7” native Blue active-matrix microLED display module
0.7” diagonal native Green array
Data-Vµ tri-colour direct-drive microLED display demonstration
Data-Vµ Development Kit with native Green direct-drive
microLED display
0.7” diagonal native Blue array
0.26” native Green active-matrix microLED display
Native Red microLEDs 0.26” native Green active-matrix microLED display
module
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Public Partnerships
IP Protected Technology
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Plessey GaN on Silicon EPI Technology
• Plessey acquired University of Cambridge spin-off CamGaN in 2012 to commercialise GaN on Si LED technology→ Plessey owns IPs and know-how of epitaxy technology
• Key advantages of Plessey GaN on Si technology:i) Larger wafer sizes 6-inch and 8-inchii) Epitaxy technology optimised for high IQEiii) Total epilayer thickness only 2.5 - 3.5 µm thickiv) Wavelength uniformity < 1 nm std deviation across waferv) Low wafer bow of 0 ± 20 µmvi) Very low particle/defect density across wafer
✓
< 5 particles per wafer
Data-Vµ
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Data-Vµ Display – Standard Configuration
• Segmented display
• Each segment has its own contact pad
• Standard configuration can have up to 84 segments
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Data-Vµ Display – Display Sizes
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GLASS BK7WITH OPTICAL BONDING TAPE
DISPLAY DIE
DIE ATTACH TAPE
HEAT SLUG/ STIFFENERPLATED COPPER BASE
Data-Vµ Display – Construction
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Data-Vµ Display – Symbolic Display
Direct Drive Display Gen 1:• No back plane.• Every Symbol/Emitter has its own terminal.• Display driven with Constant Current or
voltage source• Uses many pads – 80LEDs = At least 81 pads• Cannot design enclosed features
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Data-Vµ Display Display – Development Kit
Display
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Direct Drive Segmented Display – Evaluation Kit Features
• 5.12 x 3.84mm Active area Green Display
• On-board driver with ATMega328 µcontroller
• Open source firmware & supported library for
development
• Rechargeable (USB), 3000mAh battery
• Plug & play Bluetooth module
• Available protocols: I2C/UART/SPI/USB
• Technical documentation in USB stick included kit
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Data-Vµ Display: Development Kit Accessories
Display Mounted on FR4 Display Mounted on Semi-Rigid Board
Driver & Connector Set 300mm Flexi Extender