Resolution-enhanced integral imaging 3D display using retro-reflector and reflective polarizer

Wei HE; Qiang LI; Zhao-da GUO; Huan DENG

doi:10.37188/CJLCD.2022-0017

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Resolution-enhanced integral imaging 3D display using retro-reflector and reflective polarizer

Light Field 3D Display | 更新时间：2022-06-22

- Resolution-enhanced integral imaging 3D display using retro-reflector and reflective polarizer
- Chinese Journal of Liquid Crystals and Displays Vol. 37, Issue 5, Pages: 555-561(2022)
- 作者机构：
  
  四川大学电子信息学院，四川成都 610065
- 作者简介：
- 基金信息：
  
  National Natural Science Foundation of China(U21B2034;61775151)
- DOI：10.37188/CJLCD.2022-0017
  CLC： TN27
- Received：14 January 2022，
  
  Revised：04 February 2022，
  
  Published：05 May 2022
- 稿件说明：
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Wei HE, Qiang LI, Zhao-da GUO, et al. Resolution-enhanced integral imaging 3D display using retro-reflector and reflective polarizer[J]. Chinese journal of liquid crystals and displays, 2022, 37(5): 555-561.
DOI：

Wei HE, Qiang LI, Zhao-da GUO, et al. Resolution-enhanced integral imaging 3D display using retro-reflector and reflective polarizer[J]. Chinese journal of liquid crystals and displays, 2022, 37(5): 555-561. DOI： 10.37188/CJLCD.2022-0017.

摘要

随着3D显示被应用到军事医疗等尖端领域，高分辨率的3D图像变得尤为重要。然而，集成成像的3D显示性能受制于2D显示屏的分辨率。为了突破2D显示屏的分辨率限制，本文提出了基于回返器和反射偏振片的集成成像3D显示装置。该装置将显示器上的微图像阵列（elemental image array，EIA）通过反射型偏振片分离成偏振方向正交的两束光线，回返器、四分之一波片和反射型偏振片分别将两束偏振光反射，并沿着像素的对角线方向以

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http://html.publish.founderss.cn/rc-pub/api/common/picture?pictureId=29879753&type=

8.12800026

3.55599999

个像素错位叠加，形成一个具有更小像素单元和更多像素数量的高分辨率EIA。根据两个偏振EIA和叠加的高分辨率EIA之间的像素索引关系，反向计算出偏振EIA的像素值。实验结果表明，该系统不仅可以重构出高分辨率的3D图像，还减弱了像素间的黑网格。

Abstract

High-resolution and high-quality 3D images are particularly important as 3D displays are applied to cutting-edge areas such as military and medicine. However， the 3D image quality of integral imaging is constrained by the resolution of the 2D display screen. To overcome the resolution limitation of 2D display screen， this paper proposed a high-resolution integral imaging 3D display using retro-reflectors and reflective polarizers. The elemental image array （EIA） is separated into two orthogonal polarized rays by the reflective polarizer. The retro-reflector， the quarter-wave retarding film and the reflective polarizer reflect the two polarized rays and superimposed them along the diagonal direction， and then generate a new EIA with smaller pixel pitch and higher pixel density. According to the pixel index relationships between the polarized EIA and the superimposed high-resolution EIA， the pixel values of polarized EIA are calculated backwards. The experimental results indicate that the proposed device can reconstruct high resolution 3D images and weaken the black grid between pixels.

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references

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