Mini-LED and Micro-LED: Promising Candidates for the Next Generation Display Technology
Abstract
:1. Introduction
2. Mini-LED
3. Micro-LED
3.1. RGB Micro-LED Full-Color Display
3.2. Color Conversion Full-Color Display
3.2.1. Phosphor
3.2.2. Quantum Dots
3.3. Optical Lens Synthesis Full-Color Display
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Mini-LED | Micro-LED | |
---|---|---|
Size (μm) | 100~200 | <100 |
Purpose | Backlight for LCD | Self-emitting display |
Features | High dynamic range, power saving, thin | High contrast, high efficiency, high resolution, high response time |
Yield | >80% | Hard to estimate |
Application | LCD backlight—From small to large LCD panel | Micro-projection display, display from small to large size |
Application | Auto Display | TV | Digital Display |
Panel Size (inch) | 6~12 | 32~100 | 150~220 |
PPI | 150~250 | 40~80 | 20~30 |
Chip volume (M) | 4.1 | 24.9 | 24.9 |
Chip Size (μm) | 50~100 | 50~80 | 80~100 |
Application | AR | Watch | Mobile |
Panel Size (inch) | 0.5~1 | 1~1.5 | 4~6 |
PPI | 450~2000 | 200~300 | 300~800 |
Chip volume (M) | 49.8 | 0.4 | 6.2 |
Chip Size (μm) | 1~5 | 10~30 | 30~50 |
Company | Principle | Description | |
---|---|---|---|
Electrostatic array | LuxVue | The transfer heads are divided by the dielectric layer to form a pair of silicon electrodes, which are positively and negatively charged, respectively, before picking up the target LED. | |
Magnetic array | ITRI | Micro-LEDs are adsorbed and placed by the electromagnetic force generated by the coil. | |
Elastomer stamp | X-Celeprint | The pick-up and transfer processes are aided by the Van der Waals forces between the viscoelastic elastomer stamp and the solid micro-LEDs. | |
Roll to plate | KIMM | A roll-based transfer technology for transferring nanoscale objects from a donor substrate to a target substrate with high yields and productivity. |
Color of QD | Working Distance (mm) | Carrier Gas Flow Rate (sccm) | Sheath Gas Flow Rate (sccm) | Stage Speed (mm/s) |
---|---|---|---|---|
Red | 1 | 83 | 17 | 10 |
Green | 1 | 72 | 15 | 10 |
Blue | 1 | 66 | 11 | 10 |
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Wu, T.; Sher, C.-W.; Lin, Y.; Lee, C.-F.; Liang, S.; Lu, Y.; Huang Chen, S.-W.; Guo, W.; Kuo, H.-C.; Chen, Z. Mini-LED and Micro-LED: Promising Candidates for the Next Generation Display Technology. Appl. Sci. 2018, 8, 1557. https://doi.org/10.3390/app8091557
Wu T, Sher C-W, Lin Y, Lee C-F, Liang S, Lu Y, Huang Chen S-W, Guo W, Kuo H-C, Chen Z. Mini-LED and Micro-LED: Promising Candidates for the Next Generation Display Technology. Applied Sciences. 2018; 8(9):1557. https://doi.org/10.3390/app8091557
Chicago/Turabian StyleWu, Tingzhu, Chin-Wei Sher, Yue Lin, Chun-Fu Lee, Shijie Liang, Yijun Lu, Sung-Wen Huang Chen, Weijie Guo, Hao-Chung Kuo, and Zhong Chen. 2018. "Mini-LED and Micro-LED: Promising Candidates for the Next Generation Display Technology" Applied Sciences 8, no. 9: 1557. https://doi.org/10.3390/app8091557