• 제목/요약/키워드: Research-Institute

검색결과 181,069건 처리시간 0.144초

Pixel design for Improving Transmittance in OCB LCD

  • Lee, K.C.;Sha, Y.A.;Su, P.J.;Hsieh, C.H.;Chang, K.H.;Hsiao, C.C.;Fuh, S.Y.;Cheng, W.Y.;Liao, Y.C.;Yang, J.C.;Lo, K-L;Lee, D.W.;Chang, Y.P.;Shiu, J.W.
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2007년도 7th International Meeting on Information Display 제7권1호
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    • pp.395-398
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    • 2007

  • Two new cell structures for optical compensated bend were proposed. There are two groups of slit electrodes, which are driven by two different signals corresponding to the entire electrode as common electrode. The transmittance was enhanced without increasing the response time and light leakage. Compared with the traditional OCB mode, the increment of the transmittance of each kind is about 90% and 30%.

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Implementation of mmWave long-range backhaul for UAV-BS

  • Jangwon Moon;Junwoo Kim;Hoon Lee;Youngjin Moon;Yongsu Lee;Youngjo Bang;Kyungyeol Sohn;Jungsook Bae;Kwangseon Kim;Seungjae Bahng;Heesoo Lee
    • ETRI Journal
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    • 제45권5호
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    • pp.781-794
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    • 2023

  • Uncrewed aerial vehicles (UAVs) have become a vital element in nonterrestrial networks, especially with respect to 5G communication systems and beyond. The use of UAVs in support of 4G/5G base station (uncrewed aerial vehicle base station [UAV-BS]) has proven to be a practical solution for extending cellular network services to areas where conventional infrastructures are unavailable. In this study, we introduce a UAV-BS system that utilizes a high-capacity wireless backhaul operating in millimeter-wave frequency bands. This system can achieve a maximum throughput of 1.3 Gbps while delivering data at a rate of 300 Mbps, even at distances of 10 km. We also present the details of our testbed implementation alongside the performance results obtained from field tests.

  • https://doi.org/10.4218/etrij.2023-0112 인용 PDF