Abstract
In this study, a full-color emission red-green-blue (RGB) quantum-dot (QD)-based micro-light-emitting-diode (micro-LED) array with the reduced optical cross-talk effect by a photoresist mold has been demonstrated. The UV micro-LED array is used as an efficient excitation source for the QDs. The aerosol jet technique provides a narrow linewidth on the micrometer scale for a precise jet ofQDson the micro-LEDs. To reduce the optical cross-talk effect, a simple lithography method and photoresist are used to fabricate the mold, which consists of a window for QD jetting and a blocking wall for cross-talk reduction. The cross-talk effect of the well-confined QDs in the window is confirmed by a fluorescence microscope, which shows clear separation between QD pixels. A distributed Bragg reflector is covered on the micro-LED array and the QDs’ jetted mold to further increase the reuse of UV light. The enhanced light emission of the QDs is 5%, 32%, and 23% for blue, green, and red QDs, respectively.
Original language | English |
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Pages (from-to) | 411-416 |
Number of pages | 6 |
Journal | Photonics Research |
Volume | 5 |
Issue number | 5 |
DOIs | |
State | Published - 1 Oct 2017 |
Keywords
- (120.2040) displays
- (160.4236) nanomaterials
- (230.2090) electro-optical devices
- (230.3670) light-emitting diodes
- BACKLIGHT DRIVING SYSTEM
- LED BACKLIGHT
- COMMUNICATION-SYSTEM
- MODULATION SPEED
- LCD PANELS
- DESIGN
- TECHNOLOGY
- EMISSION
- Drivers of customer value creation