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Design and Tolerance Analysis of 3-D Stereoscopic Display Modules with Alternating Illumination Angles

조명각 변조 방식의 3차원 입체영상 표시장치설계 및 공차분석

  • Jeong, Woo-Chul (School of Information and Communication Engineering, INHA University) ;
  • Ha, Sang-Woo (School of Information and Communication Engineering, INHA University) ;
  • Park, Hun-Yang (School of Information and Communication Engineering, INHA University) ;
  • O, Beom-Hwan (School of Information and Communication Engineering, INHA University) ;
  • Park, Se-Geun (School of Information and Communication Engineering, INHA University) ;
  • Lee, El-Hang (School of Information and Communication Engineering, INHA University) ;
  • Lee, Seung-Gol (School of Information and Communication Engineering, INHA University) ;
  • Park, Sun-Ryoung (LGS Corporation) ;
  • Jo, Sung-Min (LGS Corporation)
  • Published : 2005.06.01

Abstract

In order to realize a 3-D stereoscopic display module with alternating illumination angles, several conditions required for a lenticular lens sheet were established, and then both the lens specification and the module structure were designed. Also the performance of the stereoscopic module and its tolerance characteristics were evaluated by simulating the intensity distribution on the observation plane with a finite-ray tracing technique. From the evaluation, it was known that an intersection area between two adjacent lenses should not be filled and that the lateral mismatch between a planar liquid crystal shutter and a lens sheet should be minimized.

조명각 변조 방식에 의한 3차원 입체영상 표시장치의 구현을 위해 렌티큘라 렌즈가 만족해야할 조건을 확립한 후 근축광선이론으로 렌즈 규격 및 모듈 구조를 설계하였고, 유한광선 추적법(finite ray tracing)을 이용하여 스테레오스코픽 모듈의 규격변화, 조립과정의 정렬오차, 그리고 관찰자의 관찰 조건에 따른 영향을 분석하였다. 이를 통해 신호잡음을 최소화하기 위해 제작 공정에서 렌즈 함몰부가 발생하지 않아야 하며, 평판형 액정 셔터와 렌티큘라 렌즈 판 사이의 어긋남이 최소화되어야 함을 알 수 있었다.

Keywords

References

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