• Title/Summary/Keyword: Viewing Zone forming optics

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Study on 3 Dimensional Images Using LED by PLS with No Viewing Zone Forming Optics (LED를 PLS 배열로 사용한 시역 형성 광학계가 없는 3차원 영상의 시역에 대한 연구)

  • Choi, Kyu-Hwan;Kim, Sung-Kyu;Son, Jung-Young
    • Korean Journal of Optics and Photonics
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    • v.19 no.2
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    • pp.116-121
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    • 2008
  • A two dimensional point light source array can replace both the viewing zone forming optics and the back light panel in the contact-type 3 dimensional imaging systems based on LC panels. This replacement can make the system structure of the 3 dimensional imaging systems no different from that of the conventional LCD and can reduce undesirable visual effects caused by the viewing zone forming optics. The problem with the point light source array is the visual quality deterioration of the system due to the non-ideal nature of the array.

Conditions for Moire Free Contact-Type 3 Dimensional Displays

  • Song, Yoon-Chul;Saveljev, Vladimir V.;Son, Jung-Young;Yeom, Seok-Won;Vashpanov, Yu. A.
    • Journal of the Optical Society of Korea
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    • v.12 no.2
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    • pp.93-97
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    • 2008
  • The superposing angle of the viewing zone forming optics and the display panel in the contact type 3 dimensional imaging systems for minimizing $moir{\acute{e}}s$ is found for a rectangular shape pixel with different aspect ratios. The angles are $26.2609^{\circ}$ for square shape pixels and $13.9858^{\circ}$ for the rectangular with aspect ratio 2. These angles result in the $moir{\acute{e}}s$ with the smallest period for the respective aspect ratio. The effectiveness of the angles is also experimentally demonstrated.

Moir$\acute{e}$s in 3-D Display: How to eliminate them

  • Son, Jung-Young;Kim, Shin-Hwan;Jung, Dae-Hyun;Park, Min-Chul
    • 한국정보디스플레이학회:학술대회논문집
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    • 2008.10a
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    • pp.939-942
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    • 2008
  • Moir$\acute{e}$s are a natural interference phenomenon which occurs whenever a transparent regular pattern plate is overlapped on another regular pattern plate. In the contact-type 3 dimensional imaging systems, the moires are inherent because an image display panel is seen through a viewing zone forming optical plate. The mathematical analysis of moires in the systems shows that they can be minimized by the proper selection of overlapping angles between them. The angle is different for pixels with different aspect ratios.

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