Autostereoscopic display using a holographic splitter in polymer-dispersed-liquid crystals

Wei-Chia Su, Chien Yue Chen, Hsin Wei Ho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, we develop a beam splitter based on a holographic optical element in polymer dispersed liquid crystals (PDLC) to generate a stereogram. As shown in Fig.1, to generate a stereogram on a liquid crystal panel, a beam splitter is essentially required to direct the image on odd pixels to propogate to right eye, and direct the image on even pixels to propogate to left eye of the observer. The comerical technic to generate the essential beam splitter is using a barrier [1-2] or a lenticular array [3]. The former method may reduce the brightness of the stereogram, and the latter technic may generate more cross talk noise. Instead of that, we propose a new technology for a beam splitter based holography. As shown in Fig.1, the whole beam splitter is a holographic optical element composited of many sub-holograms attached on each column pixels. The odd column pixels are marked with R and even column pixels are marked with L. The sub-holograms above the odd column pixels will diffract the images shown on R column pixels to propogate to right eye, and sub-holograms above the even column pixels will diffract the images shown on L column pixels to propogate to left eye. Fig.2 shows the experimental result of the holographic splitter. The image on R column pixels is a character L and the image on L column pixels is a character V. We can find these two images can be separated effectively. The diffraction efficiency for each image is about 40% in our experimental element, and accordingly the brightness of the stereogram is about 40% of the original brightness on panel. The brightness performance is much better than the barrier technology, which generate stereogram with low brightness only 23% of the original brightness on panel [4]. The cross talk performance can be investigated by the contrast ratio (CR) of the diffracted images. The CR for right eye can be defined as: equation where Rr is the diffracted intensity of the image on R column pixels measured on location of the right eye, and R l is the diffracted intensity of the image on L column pixels measured on location of the right eye. The CRl for left eye can be measured by the similar principle. The contrast ratios for right eye and left eye of the holographic splitter are about 84%, respevtively. Our device shows larger contrast ratio for stereogram, and therefore, it generate less cross talk noise than lenticular technology.

Original languageEnglish
Title of host publication2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
DOIs
Publication statusPublished - 2011 Sep 6
Event2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 - Munich, Germany
Duration: 2011 May 222011 May 26

Other

Other2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011
CountryGermany
CityMunich
Period11-05-2211-05-26

Fingerprint

Liquid crystal polymers
Pixels
Display devices
Luminance
Holograms
Holographic optical elements
Diffraction efficiency
Holography
Liquid crystals

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Su, W-C., Chen, C. Y., & Ho, H. W. (2011). Autostereoscopic display using a holographic splitter in polymer-dispersed-liquid crystals. In 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011 [5942862] https://doi.org/10.1109/CLEOE.2011.5942862
Su, Wei-Chia ; Chen, Chien Yue ; Ho, Hsin Wei. / Autostereoscopic display using a holographic splitter in polymer-dispersed-liquid crystals. 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. 2011.
@inproceedings{05f2260c0c7346d18dc63a9fb88192d1,
title = "Autostereoscopic display using a holographic splitter in polymer-dispersed-liquid crystals",
abstract = "In this paper, we develop a beam splitter based on a holographic optical element in polymer dispersed liquid crystals (PDLC) to generate a stereogram. As shown in Fig.1, to generate a stereogram on a liquid crystal panel, a beam splitter is essentially required to direct the image on odd pixels to propogate to right eye, and direct the image on even pixels to propogate to left eye of the observer. The comerical technic to generate the essential beam splitter is using a barrier [1-2] or a lenticular array [3]. The former method may reduce the brightness of the stereogram, and the latter technic may generate more cross talk noise. Instead of that, we propose a new technology for a beam splitter based holography. As shown in Fig.1, the whole beam splitter is a holographic optical element composited of many sub-holograms attached on each column pixels. The odd column pixels are marked with R and even column pixels are marked with L. The sub-holograms above the odd column pixels will diffract the images shown on R column pixels to propogate to right eye, and sub-holograms above the even column pixels will diffract the images shown on L column pixels to propogate to left eye. Fig.2 shows the experimental result of the holographic splitter. The image on R column pixels is a character L and the image on L column pixels is a character V. We can find these two images can be separated effectively. The diffraction efficiency for each image is about 40{\%} in our experimental element, and accordingly the brightness of the stereogram is about 40{\%} of the original brightness on panel. The brightness performance is much better than the barrier technology, which generate stereogram with low brightness only 23{\%} of the original brightness on panel [4]. The cross talk performance can be investigated by the contrast ratio (CR) of the diffracted images. The CR for right eye can be defined as: equation where Rr is the diffracted intensity of the image on R column pixels measured on location of the right eye, and R l is the diffracted intensity of the image on L column pixels measured on location of the right eye. The CRl for left eye can be measured by the similar principle. The contrast ratios for right eye and left eye of the holographic splitter are about 84{\%}, respevtively. Our device shows larger contrast ratio for stereogram, and therefore, it generate less cross talk noise than lenticular technology.",
author = "Wei-Chia Su and Chen, {Chien Yue} and Ho, {Hsin Wei}",
year = "2011",
month = "9",
day = "6",
doi = "10.1109/CLEOE.2011.5942862",
language = "English",
isbn = "9781457705335",
booktitle = "2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011",

}

Su, W-C, Chen, CY & Ho, HW 2011, Autostereoscopic display using a holographic splitter in polymer-dispersed-liquid crystals. in 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011., 5942862, 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011, Munich, Germany, 11-05-22. https://doi.org/10.1109/CLEOE.2011.5942862

Autostereoscopic display using a holographic splitter in polymer-dispersed-liquid crystals. / Su, Wei-Chia; Chen, Chien Yue; Ho, Hsin Wei.

2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. 2011. 5942862.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

TY - GEN

T1 - Autostereoscopic display using a holographic splitter in polymer-dispersed-liquid crystals

AU - Su, Wei-Chia

AU - Chen, Chien Yue

AU - Ho, Hsin Wei

PY - 2011/9/6

Y1 - 2011/9/6

N2 - In this paper, we develop a beam splitter based on a holographic optical element in polymer dispersed liquid crystals (PDLC) to generate a stereogram. As shown in Fig.1, to generate a stereogram on a liquid crystal panel, a beam splitter is essentially required to direct the image on odd pixels to propogate to right eye, and direct the image on even pixels to propogate to left eye of the observer. The comerical technic to generate the essential beam splitter is using a barrier [1-2] or a lenticular array [3]. The former method may reduce the brightness of the stereogram, and the latter technic may generate more cross talk noise. Instead of that, we propose a new technology for a beam splitter based holography. As shown in Fig.1, the whole beam splitter is a holographic optical element composited of many sub-holograms attached on each column pixels. The odd column pixels are marked with R and even column pixels are marked with L. The sub-holograms above the odd column pixels will diffract the images shown on R column pixels to propogate to right eye, and sub-holograms above the even column pixels will diffract the images shown on L column pixels to propogate to left eye. Fig.2 shows the experimental result of the holographic splitter. The image on R column pixels is a character L and the image on L column pixels is a character V. We can find these two images can be separated effectively. The diffraction efficiency for each image is about 40% in our experimental element, and accordingly the brightness of the stereogram is about 40% of the original brightness on panel. The brightness performance is much better than the barrier technology, which generate stereogram with low brightness only 23% of the original brightness on panel [4]. The cross talk performance can be investigated by the contrast ratio (CR) of the diffracted images. The CR for right eye can be defined as: equation where Rr is the diffracted intensity of the image on R column pixels measured on location of the right eye, and R l is the diffracted intensity of the image on L column pixels measured on location of the right eye. The CRl for left eye can be measured by the similar principle. The contrast ratios for right eye and left eye of the holographic splitter are about 84%, respevtively. Our device shows larger contrast ratio for stereogram, and therefore, it generate less cross talk noise than lenticular technology.

AB - In this paper, we develop a beam splitter based on a holographic optical element in polymer dispersed liquid crystals (PDLC) to generate a stereogram. As shown in Fig.1, to generate a stereogram on a liquid crystal panel, a beam splitter is essentially required to direct the image on odd pixels to propogate to right eye, and direct the image on even pixels to propogate to left eye of the observer. The comerical technic to generate the essential beam splitter is using a barrier [1-2] or a lenticular array [3]. The former method may reduce the brightness of the stereogram, and the latter technic may generate more cross talk noise. Instead of that, we propose a new technology for a beam splitter based holography. As shown in Fig.1, the whole beam splitter is a holographic optical element composited of many sub-holograms attached on each column pixels. The odd column pixels are marked with R and even column pixels are marked with L. The sub-holograms above the odd column pixels will diffract the images shown on R column pixels to propogate to right eye, and sub-holograms above the even column pixels will diffract the images shown on L column pixels to propogate to left eye. Fig.2 shows the experimental result of the holographic splitter. The image on R column pixels is a character L and the image on L column pixels is a character V. We can find these two images can be separated effectively. The diffraction efficiency for each image is about 40% in our experimental element, and accordingly the brightness of the stereogram is about 40% of the original brightness on panel. The brightness performance is much better than the barrier technology, which generate stereogram with low brightness only 23% of the original brightness on panel [4]. The cross talk performance can be investigated by the contrast ratio (CR) of the diffracted images. The CR for right eye can be defined as: equation where Rr is the diffracted intensity of the image on R column pixels measured on location of the right eye, and R l is the diffracted intensity of the image on L column pixels measured on location of the right eye. The CRl for left eye can be measured by the similar principle. The contrast ratios for right eye and left eye of the holographic splitter are about 84%, respevtively. Our device shows larger contrast ratio for stereogram, and therefore, it generate less cross talk noise than lenticular technology.

UR - http://www.scopus.com/inward/record.url?scp=80052304365&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80052304365&partnerID=8YFLogxK

U2 - 10.1109/CLEOE.2011.5942862

DO - 10.1109/CLEOE.2011.5942862

M3 - Conference contribution

SN - 9781457705335

BT - 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011

ER -

Su W-C, Chen CY, Ho HW. Autostereoscopic display using a holographic splitter in polymer-dispersed-liquid crystals. In 2011 Conference on Lasers and Electro-Optics Europe and 12th European Quantum Electronics Conference, CLEO EUROPE/EQEC 2011. 2011. 5942862 https://doi.org/10.1109/CLEOE.2011.5942862