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검색결과 9,930건 처리시간 0.047초

Improved Angle-of-View Measurement Method for Display Devices

  • Lee, Eun-Jung;Chong, Jong-Ho;Yang, Sun-A;Lee, Hun-Jung;Shin, Mi-Ok;Kim, Su-Young;Choi, Dong-Wook;Lee, Seung-Bae;Lee, Han-Yong;Berkeley, Brian H.
    • Journal of Information Display
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    • 제11권1호
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    • pp.17-20
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    • 2010

  • With the increasing demand for a better FPD image quality, better evaluation metrics and advanced display quality measurement methods are required to meet these needs. There are many measurement methods for evaluating the viewing angle of various display devices, but these methods, which include luminance drop, color shift, and contrast ratio decrease, are imperfect considering that human perception does not completely correlate to them. In this paper, a new method of measuring the perceptual angle of FPDs is proposed, considering human visual perception, which uses the color space of the color appearance model.

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Electro-mechanical Analyses of Thin Film Transistors for Flexible Displays

  • Saran, Neerja;Roh, Nam-Seok;Kim, Sang-Il;Lee, Woo-Jae;Kim, Jong-Seong;Hwang, Tae-Hyung;Hong, Seok-Joon;Kim, Myeong-Hee;Lim, Soon-Kwon;Souk, Jun-Hyung
    • 한국정보디스플레이학회:학술대회논문집
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    • 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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    • pp.670-673
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    • 2008

  • Good mechanical properties of thin-film transistors on plastic substrates are an essential parameter in the development of robust flexible displays. In this paper, a careful investigation is carried out on TFT backplane on plastic substrates under cyclic bending conditions. Bending modes of tensile and compressive as well as parallel and perpendicular orientation-dependent bending of channel have been analyzed carefully. This analysis will be helpful in knowing the electro-mechanical performance boundaries of the TFT devices so as to determine the bending limitations of our flexible displays.

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