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Introduction and Research Trends on Micro LED Technology

마이크로 LED 기술 소개 및 연구 동향

  • Moojin Kim (Department of Electronic Engineering, Kangnam University)
  • 김무진 (강남대학교 전자공학과)
  • Received : 2024.07.10
  • Accepted : 2024.09.20
  • Published : 2024.09.30
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Abstract

Currently, micro LEDs (Light Emitting Diode) are attracting attention in the lighting field along with next-generation displays and have advantages such as high luminance, operating speed, energy efficiency, and long-term driving. It is predicted to bring new innovations in smartphones, televisions, and wearable electronic devices. These micro displays are self-luminous displays that emit light by themselves by being implemented as pixels composed of micrometer-sized LED devices. The main manufacturing processes can be divided into crystal growth, patterning and etching, chip separation and transfer, bonding and wiring, panel assembly and encapsulation, inspection, and quality management. Recently, this technology has developed at a rapid pace, and companies are expanding their investments in these fields. According to recent market research results, the micro LED display market is expected to continue to grow, and the main development direction of development can be summarized as manufacturing process improvement, material innovation, and driving technology development. It is believed that commercialization will accelerate through these studies and lead to innovation in the display industry with high performance and various application possibilities.

현재 마이크로 LED (Light Emitting Diode)는 디스플레이와 함께 조명 분야에서 관심을 받고 있으며, 높은 휘도, 빠른 동작 속도, 에너지 효율, 오랜 시간 동작 등의 장점을 가지고 있다. 스마트폰, 텔레비젼, 웨어러블 전자소자 등에서 새로운 혁신을 불러올 것으로 예측된다. 이러한 마이크로 디스플레이는 마이크로미터 크기의 LED 소자들로 이루어진 픽셀로 구현되며, 자체적으로 빛을 내는 자체발광형 디스플레이다. 주요 제조 공정으로는 결정성장, 패터닝과 식각, 칩 분리와 전사, 본딩과 배선, 패널 조립과 봉지, 검사와 품질 관리 등으로 구분할 수 있다. 최근 몇 년 동안 이 기술은 빠른 속도로 발전했으며, 기업들이 이러한 분야에의 투자를 확대하고 있다. 최신 시장 조사 결과에 의하면, 마이크로 LED 디스플레이 시장은 지속적으로 성장할 것으로 관측되고 있으며, 주요 발전 방향은 제조공정 개선, 소재 혁신, 구동 기술 발전 등으로 요약할 수 있다. 이러한 연구를 통해 상용화가 가속화되어 높은 성능과 다양한 응용 가능성으로 디스플레이 산업의 혁신을 이끌 것이라 판단된다.

Keywords

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