National Tsing Hua University Institutional Repository:Sequential Color LED Back-Light Driving System for LCD Panels
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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 會議論文  >  Sequential Color LED Back-Light Driving System for LCD Panels


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    题名: Sequential Color LED Back-Light Driving System for LCD Panels
    作者: C.-C. Chen;C.-Y. Wu;P.-C. Lu;Y.-M. Chen;T.-F. Wu
    教師: 吳財福
    日期: 2006
    出版者: Institute of Electrical and Electronics Engineers
    關聯: IEEE APEC'06, Shanghai Jiao Tong Univ, Shanghai, PEOPLES R CHINA, AUG 14-16, 2006, Volume 1, Pages 1-5, 297056
    关键词: sequential color display
    LED
    LCD
    摘要: In this paper, a sequential color light emitting diode (LED) backlight driving system for liquid crystal display (LCD) panels is proposed. Due to improvement on luminous efficacy, long life and wide color gamut, LED has gradually substituted for cold cathode fluorescent lamp as backlight. The proposed driving system adopts sequential color scanning scheme to improve light utilization efficiency by removing color filter. To meet display performance requirement where color variation rectangle uv needs to be limited below 0.002, this paper also proposes a family of output current ripple free topologies to reduce color variation caused by ripple current. In addition, a driving voltage reseter is introduced to resolve current-spike problem, improving backlight reliability and availability. A forward-type current ripple free converter has been built, from which experimental measurements have verified the discussed performance and feasibility of the proposed system.
    相関连結: http://www.ieee.org/index.html
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/83755
    显示于类别:[電機工程學系] 會議論文

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