Luminous Properties of Red, Green, and Blue Micro-LEDs and the Impacts on Color Gamut
Electrical-chromatic characteristics of red, green, and blue micro-LEDs (10 \times 10 \mu m) are investigated at temperatures ranging from 300 to 340 K. The external quantum efficiency (EQE) of red micro-LEDs decreases significantly with the increasement in temperature, suggesting that heat dissi...
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| Veröffentlicht in: | IEEE transactions on electron devices 2023-04, Vol.70 (4), p.1-6 |
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| container_title | IEEE transactions on electron devices |
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| creator | Tong, Chang-Dong Li, Guang-Yao Zheng, Xi Chen, Can-Bin Ke, Zhi-Jie Wu, Rong-Xing Wu, Ting-Zhu Lu, Yi-Jun Chen, Zhong Zhuang, Jian-Bang Guo, Wei-Jie |
| description | Electrical-chromatic characteristics of red, green, and blue micro-LEDs (10 \times 10 \mu m) are investigated at temperatures ranging from 300 to 340 K. The external quantum efficiency (EQE) of red micro-LEDs decreases significantly with the increasement in temperature, suggesting that heat dissipation is crucial for red micro-LEDs. The impacts of temperature and driving current on the chromaticity coordinates of the light emission from micro-LEDs are determined. When the trichromatic micro-LEDs are driven by the currents corresponding to the maximum EQE, the influence of temperature on the color gamut is limited, facilitating the achievement of high color gamut and high efficiency. |
| doi_str_mv | 10.1109/TED.2023.3247362 |
| format | Article |
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The external quantum efficiency (EQE) of red micro-LEDs decreases significantly with the increasement in temperature, suggesting that heat dissipation is crucial for red micro-LEDs. The impacts of temperature and driving current on the chromaticity coordinates of the light emission from micro-LEDs are determined. When the trichromatic micro-LEDs are driven by the currents corresponding to the maximum EQE, the influence of temperature on the color gamut is limited, facilitating the achievement of high color gamut and high efficiency.]]></description><identifier>ISSN: 0018-9383</identifier><identifier>EISSN: 1557-9646</identifier><identifier>DOI: 10.1109/TED.2023.3247362</identifier><identifier>CODEN: IETDAI</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Chromaticity ; Color ; Color gamut ; display ; Distance measurement ; Light emission ; Light emitting diodes ; micro-LEDs ; Pulse width modulation ; Quantum efficiency ; Substrates ; Technological innovation ; Temperature distribution ; Temperature measurement</subject><ispartof>IEEE transactions on electron devices, 2023-04, Vol.70 (4), p.1-6</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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The external quantum efficiency (EQE) of red micro-LEDs decreases significantly with the increasement in temperature, suggesting that heat dissipation is crucial for red micro-LEDs. The impacts of temperature and driving current on the chromaticity coordinates of the light emission from micro-LEDs are determined. When the trichromatic micro-LEDs are driven by the currents corresponding to the maximum EQE, the influence of temperature on the color gamut is limited, facilitating the achievement of high color gamut and high efficiency.]]></description><subject>Chromaticity</subject><subject>Color</subject><subject>Color gamut</subject><subject>display</subject><subject>Distance measurement</subject><subject>Light emission</subject><subject>Light emitting diodes</subject><subject>micro-LEDs</subject><subject>Pulse width modulation</subject><subject>Quantum efficiency</subject><subject>Substrates</subject><subject>Technological innovation</subject><subject>Temperature distribution</subject><subject>Temperature measurement</subject><issn>0018-9383</issn><issn>1557-9646</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpNkL1PwzAQxS0EEqWwMzBYYm2Kv-LEI7ShVAoCoTJbTnoWqZo42MnAf49LOzCd3um9u6cfQreUzCkl6mFTLOeMMD7nTGRcsjM0oWmaJUoKeY4mhNA8UTznl-gqhF2UUgg2QZ_l2DadGwN-964HPzQQsLP4A7YzvPIA3Qybbouf9iPg16b2LimLZfjbDV-A121v6iFGOrxwe-fxyrTjcI0urNkHuDnNKdo8F5vFS1K-rdaLxzKpmWJDkgnJBDWU18YoaYVV0mxVWgliZQXAc8WMrKWhlbRUVCTNjbSMEFZnguSST9H98Wzv3fcIYdA7N_ouftQsU4RymeYiusjRFcuH4MHq3jet8T-aEn1gpyM7fWCnT-xi5O4YaQDgnz02oKniv4KtaCo</recordid><startdate>20230401</startdate><enddate>20230401</enddate><creator>Tong, Chang-Dong</creator><creator>Li, Guang-Yao</creator><creator>Zheng, Xi</creator><creator>Chen, Can-Bin</creator><creator>Ke, Zhi-Jie</creator><creator>Wu, Rong-Xing</creator><creator>Wu, Ting-Zhu</creator><creator>Lu, Yi-Jun</creator><creator>Chen, Zhong</creator><creator>Zhuang, Jian-Bang</creator><creator>Guo, Wei-Jie</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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The external quantum efficiency (EQE) of red micro-LEDs decreases significantly with the increasement in temperature, suggesting that heat dissipation is crucial for red micro-LEDs. The impacts of temperature and driving current on the chromaticity coordinates of the light emission from micro-LEDs are determined. When the trichromatic micro-LEDs are driven by the currents corresponding to the maximum EQE, the influence of temperature on the color gamut is limited, facilitating the achievement of high color gamut and high efficiency.]]></abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TED.2023.3247362</doi><tpages>6</tpages><orcidid>https://orcid.org/0000-0002-5647-3152</orcidid><orcidid>https://orcid.org/0000-0002-1473-2224</orcidid><orcidid>https://orcid.org/0000-0002-1247-6597</orcidid><orcidid>https://orcid.org/0000-0001-9635-3342</orcidid><orcidid>https://orcid.org/0000-0001-7920-6439</orcidid><orcidid>https://orcid.org/0000-0001-9453-6823</orcidid></addata></record> |
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| subjects | Chromaticity Color Color gamut display Distance measurement Light emission Light emitting diodes micro-LEDs Pulse width modulation Quantum efficiency Substrates Technological innovation Temperature distribution Temperature measurement |
| title | Luminous Properties of Red, Green, and Blue Micro-LEDs and the Impacts on Color Gamut |
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