Optoelectronic Technology, Volume. 42, Issue 1, 64(2022)

Development and Application of Micromation LED Display Technologies

Deyu SONG1,2, Yinglu FANG1, Lu WANG1,2, Hongbao YANG1,2, Xiaojian LI1,2, and Weihua FAN1,2
Author Affiliations
  • 1The 55th Research Institute of China Electronic Technology Group Corporation, Nanjing 2006, CHN
  • 2National Flat Panel Display Engineering Technology Research Center, Nanjing 10016, CHN
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    Figures & Tables(17)
    Mini‑LED applied to RGB display
    Mini‑LED applied to backlights
    COB packaging structure of Mini‑LED
    Basic structure of Micro‑LED display[4]
    Wall defects sharply decreased Micro‑LED light‑emitting area
    Mass transfer technologies[16]
    Schematic of mass transfer (stamp plus laser)
    0.78 cm Micro‑LED
    0.33 cm Micro‑LED
    Samples produced by Texas Tech University
    Cross‑sectional structure of flip‑chip device
    Silicon‑based Micro‑LED display prepared with Micro‑tube structure
    Achievements of Lin Jianzhong research group
    Achievements of Wu Dongxing research group
    Achievement of Guo Haozhong research group
    • Table 1. Comparison and applications of LED display technologies

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      Table 1. Comparison and applications of LED display technologies

      产品类型点间距/mm像素密度/PPI可分辨极限距离/m适用场合或观看距离
      Micro‑LED<0.08>300人眼不可 分辨消费电子
      0.12540.34
      Mini‑LED0.21300.7LED电视
      0.5501.7
      0.7362.4
      0.9273.1
      小间距LED1253.4室内,距离3~6 m
      1.2214.1
      1.5175.2
      2136.9室内,距离5~15 m
      2.5108.6
      普通LED屏38.510.3室外,距离 >30 m
      4613.7
      >10<2.5>34.4
    • Table 2. Performance targets comparison of small‑pitch LED,Mini‑LED and Micro‑LED

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      Table 2. Performance targets comparison of small‑pitch LED,Mini‑LED and Micro‑LED

      小间距LEDMini‑LEDMicro‑LED
      芯片尺寸/μm500左右60~200<60
      技术类型自发光自发光/背光自发光
      封装SMD/COBCOB/IMDCSP
      背板PCBPCB、TFTTFT、CMOS
      发光效率中等
      对比度≤5 000∶1100 000∶11 000 000∶1
      NTSC/(%)≤11080~100可达140
      可视角/(°)±160~170±178±178
      反应时间μsnsns
      平均能耗高/中等
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    Deyu SONG, Yinglu FANG, Lu WANG, Hongbao YANG, Xiaojian LI, Weihua FAN. Development and Application of Micromation LED Display Technologies[J]. Optoelectronic Technology, 2022, 42(1): 64

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    Paper Information

    Category: Study Report

    Received: Oct. 28, 2021

    Accepted: --

    Published Online: Aug. 3, 2022

    The Author Email:

    DOI:10.19453/j.cnki.1005-488x.2022.01.013

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