Journal of the Semiconductor & Display Technology (반도체디스플레이기술학회지)

The Korean Society Of Semiconductor & Display Technology (한국반도체디스플레이기술학회)
권호 표지

Verification of Optical Wireless Communication Functionality in Micro-LED Display Light Source Integrated with Field-effect Transistor

전계형 스위칭 소자가 집적된 마이크로 LED 디스플레이 광원의 광 무선 통신 기능 검증

  • Jong-In Kim (MicroLED Display Research Center, Korea Photonics Technology Institute(KOPTI)) ;
  • Hyun-Sun Park (MicroLED Display Research Center, Korea Photonics Technology Institute(KOPTI)) ;
  • Pan-Ki Min (MicroLED Display Research Center, Korea Photonics Technology Institute(KOPTI)) ;
  • Myung-Jin Go (MicroLED Display Research Center, Korea Photonics Technology Institute(KOPTI)) ;
  • Young-Woo Kim (Optical Semiconductor and Display Research Division, Korea Photonics Technology Institute(KOPTI)) ;
  • Jung-Hyun Kim (MicroLED Display Research Center, Korea Photonics Technology Institute(KOPTI))
  • 김종인 (한국광기술원 마이크로LED디스플레이연구센터) ;
  • 박현선 (한국광기술원 마이크로LED디스플레이연구센터) ;
  • 민판기 (한국광기술원 마이크로LED디스플레이연구센터) ;
  • 고명진 (한국광기술원 마이크로LED디스플레이연구센터) ;
  • 김영우 (한국광기술원 광반도체.디스플레이연구본부) ;
  • 김정현 (한국광기술원 마이크로LED디스플레이연구센터)
  • Received : 2023.03.16
  • Accepted : 2023.06.21
  • Published : 2023.06.30
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Abstract

In the past, display devices have undergone many changes, such as plasma TVs and LCDs, and have continued to develop. Recently, new display technologies, such as Organic Light Emitting Diode displays and Inorganic Light Emitting Diode displays, have been developed. Among them, Micro LED displays have the potential to improve performance more than LCDs and OLEDs, but a lot of effort and time are needed until the mass production technology (transfer and bonding) of Micro LED displays is developed. We have developed a new Micro LED display light source that can be produced using existing transfer and bonding process technologies to enable faster commercialization of Micro LED in the industry. This light source is TFT deposition on LED. TFT deposition on LED has the advantage of being able to produce displays using existing process technology, making early commercialization of display application products possible. In this study, we applied the Active Driving method to verify the performance of TFT deposition on LED as a display to determine its commercialization potential. Additionally, to facilitate faster application of Micro LED in the industry, we applied TFT deposition on LED to Optical Wireless Communication systems, which are widely used in application service areas such as safety/security and sensors, to verify its communication performance. The experimental results confirmed that TFT deposition on LED is not only capable of AM driving but can also be applied to OWC systems.

Keywords

Acknowledgement

이 논문은 2019년도 산업통상자원부 및 산업기술평가관리원(KEIT) 연구비 지원에 의한 연구임('20004479').

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