A high-brightness diffractive stereoscopic display technology

Chen, Chien-Yue; Deng, Qing-Long; Wu, Han-Chiang

doi:10.1016/j.displa.2010.06.002

Cited by 14 publications

(7 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In relevant literature a common non-glass type 3D displays have been designed and implemented with a 6.5 cm inter-pupillary distance [10], [29], the paper use the same length to generate the mapping function for user position estimation, as shown in Fig. 8.…”

Section: Position Estimation In the Real-worldmentioning

confidence: 99%

An Accurate User Position Estimation Method Using a Single Camera for 3D Display without Glasses

Kim

Lee

Ju³

et al. 2013

IEICE Trans. Inf. & Syst.

View full text Add to dashboard Cite

SUMMARY3D display systems without glasses are preferred because of the inconvenience wearing of special glasses while viewing 3D content. In general, non-glass type 3D displays work by sending left and right views of the content to the corresponding eyes depending on the user position with respect to the display. Since accurate user position estimation has become a very important task for non-glass type 3D displays, most of such systems require additional hardware or suffer from low accuracy. In this paper, an accurate user position estimation method using a single camera for non-glass type 3D display is proposed. As inter-pupillary distance is utilized for the estimation, at first the face is detected and then tracked using an Active Appearance Model. The pose of face is then estimated to compensate the pose variations. To estimate the user position, a simple perspective mapping function is applied which uses the average of the inter-pupillary distance. For accuracy, personal inter-pupillary distance can also be used. Experimental results have shown that the proposed method successfully estimated the user position using a single camera. The average error for position estimation with the proposed method was small enough for viewing 3D contents.

show abstract

Section: Position Estimation In the Real-worldmentioning

confidence: 99%

An Accurate User Position Estimation Method Using a Single Camera for 3D Display without Glasses

Kim

Lee

Ju³

et al. 2013

IEICE Trans. Inf. & Syst.

View full text Add to dashboard Cite

show abstract

“…The blazed grating was produced with a four-level structure. According to [10], the maximum diffraction efficiency of four-level blazed gratings was around 79.0%. In regard to the experimental process, LIGA and ICP-RIE etching processes were utilized, and silicon wafer was the material substrate on which the symmetrical four-level blazed grating structure was etched.…”

Section: B Fabrication Of Blazed Grating Filmmentioning

confidence: 99%

“…Since both the minimum etching width of 1.7 μm and the structure depth of 850 nm were in the submicrometer range [19,20], a four-level structure was the limit etching close to the blazed grating. The highest diffraction efficiency, therefore, was 79.0% [10]. Moreover, the nonisotropic etching was protected from the cycle with SF 6 and C 4 F 8 so that a vertical step structure was etched.…”

Section: A Fabrication Effectmentioning

confidence: 99%

“…Chen et al further utilized the diffractive optical element, blazed grating, as the beam splitter for stereoscopic displays in 2010. With eight-level blazed gratings, which presented up to 82% diffraction efficiency and symmetrical arrangement, the problems in traditional binary gratings and lenticular films, such as insufficient brightness and dispersion, were replaced [10]. Su et al successfully separated the left and the right images with holographic optical elements for spectroscopic gratings and proved the feasibility of diffraction spectroscopic technology in 2011.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Binary blazed grating based on autostereoscopic display mechanism

Chen¹,

Deng²,

Chiang³

et al. 2012

Appl. Opt.

Self Cite

View full text Add to dashboard Cite

The diffractive optical element blazed grating is proposed as the beam splitter for autostereoscopic displays in this study. With Lithographie Galvanoformung Abformung and inductively coupled plasma reactive-ion etching, a four-level blazed grating structure is produced. Moreover, highly translucent polydimethylsiloxane is transformed into symmetrical four-level blazed grating films. The experimental results show that the film can successfully transmit the left and the right images to the accurate positions, and the diffraction efficiency is 70.4% and the contrast ratio is above 80%, presenting the original stereoscopic image without it being affected by brightness and crosstalk. In the experiment of stereoscopic imaging, both the left and the right images could be clearly acquired, which proves the feasibility of blazed gratings as practical for the beam splitter of autostereoscopic displays.

show abstract

“…Nonetheless, present technologies are not problem-free and common problems include insufficient brightness, moiré, and cross talk, so that users cannot watch for a long period of time [2,3]. Chen et al first proposed diffractive optical elements (DOEs) to replace the present splitters of shaded and lenticular stereo image pairs, where DOEs were directly attached to the color filter of the panel so that the symmetric design separately generated þ1 order diffraction, which was the binocular position to view stereoscopic images [4]. Su et al further proposed producing the splitters of stereoscopic displays with holographic optical elements and proved the feasibility of diffractive stereoscopic splitting [5].…”

mentioning

confidence: 99%

Design of a symmetric blazed grating sheet embedded in an autostereoscopic display

2011

Self Cite

View full text Add to dashboard Cite

This study proposes a diffractive autostereoscopic display technology that utilizes blazed grating embedded in the liquid crystal panel to deliver a stereo image pair to both eyes. Having the diffractive red green blue beams as the color source of the panel, color filters are no longer required in this system. From the simulation analyses, not only could the brightness achieve 77.90%, but no serious chromatic aberration or cross talk appeared.

show abstract

A high-brightness diffractive stereoscopic display technology

Cited by 14 publications

References 18 publications

An Accurate User Position Estimation Method Using a Single Camera for 3D Display without Glasses

An Accurate User Position Estimation Method Using a Single Camera for 3D Display without Glasses

Binary blazed grating based on autostereoscopic display mechanism

Design of a symmetric blazed grating sheet embedded in an autostereoscopic display

Contact Info

Product

Resources

About