Advances in the design of optical see-through displays

Zhou, Yao; Zhang, Jufan

doi:10.1515/aot-2020-0005

Cited by 6 publications

(3 citation statements)

References 82 publications

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“…The physiological perception of stereoscopic vision mainly includes blurred focus, moving parallax, and binocular parallax. There are two main reasons for vertigo: [1] conflicts between binocular parallax and focusing blur on visual perception; [2] the conflict between motion perception and visual perception [6,[42][43][44][45][46].…”

Section: Key Optical Parametersmentioning

confidence: 99%

“…Although there are a number of technical drawbacks and problems limiting its success in the consumer market, the achievements made in the enterprise market have witnessed value and high commercial potential. The latest technological progress brings us new possibilities for a wider range of applications in the near future [4][5][6][7]. This chapter focuses on the current mainstream optical imaging technologies and projecting technologies, along with typical applications, to offer the readers a general idea on the state of the art.…”

Section: Introductionmentioning

confidence: 99%

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Advancements in Optical See-through Near-Eye Display

Zhang¹,

Zhou²

2023

Modern Development and Challenges in Virtual Reality

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With the development of optical design and manufacturing, the optical see-through near-eye display becomes a promising research topic in recent decades, which can be applied in medical devices, education, aviation, entertainment et al. Typical products include Head-mounted Displays (HMDs) and Augmented Reality (AR) glasses. The optical display system of AR devices mainly consists of a miniature projecting module and an optical imaging module. In this chapter, the display systems used by AR glasses on the market, including various mini-display screens and optical imaging elements, have been systematically summarized. Therein, the differences in optical combinators are the key part to distinguish various AR display systems. Thus, it is essential to figure out the advantages and disadvantages of each optical imaging technology applied in this area. Besides, the characteristics of the projectors are crucial to the quality of the images.

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Section: Key Optical Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Advancements in Optical See-through Near-Eye Display

Zhang¹,

Zhou²

2023

Modern Development and Challenges in Virtual Reality

Self Cite

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“…The pupil could intercept the complete image information from this plane, which could be transmitted to retina by lens. Therefore, the light from the same angle will cover one visual cell, like a pixel in the imager sensor, without any double shadows or ghost images [12].…”

Section: Stray Light Analysismentioning

confidence: 99%

Stray light analysis and design optimization of geometrical waveguide

Zhou

Zhang

2021

Advanced Optical Technologies

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Waveguide technology has great prospects of development in optical see-through near-eye displays with larger field of view, lower thickness and lighter weight than other conventional optical technologies. However, the stray light is usually inevitable in current optical design and manufacturing, causing a poor imaging quality. In this paper, the principle and structures of stray light generation are analyzed, and the causes are discussed by non-sequential ray-tracing with mass precision calculation. From the ray-tracing, the suppression of stray light by optimizing design and manufacturing are achieved. A 2 mm-thickness geometrical waveguide with partially reflective mirror array is designed. The field of view of the optimized geometrical waveguide reaches 47° with 10 mm at exit pupil diameter and 20 mm at eye relief.

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P‐4.2: Study on Optical Performances of Transparent LCD with Dichroic Dye‐doped Liquid Crystal

Bi¹,

Wu²,

Yuan³

et al. 2021

Symp Digest of Tech Papers

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With the development of the Internet of Things, transparent display is playing an increasingly important role in people's lives. The most important optical index of transparent display is transmittance. Due to no need for polarizer, transparent liquid crystal display (TLCD) with dichroic dye‐doped can achieve very high transmittance. In this paper, optical performance and image quality improvement of TLCD with dye‐doped liquid crystal were studied. A new TN pixel design with common electrode of ITO instead of metal to form stored capacitance was used to achieve high aperture ratio (AR). And it was found that bright transmittance of NWSC is higher than that of NBSC due to high anchoring effect of PI to positive liquid crystal. In addition, the transmittance decreases gradually with increasing cell gap due to the increased light absorption by the long axis of dye molecules. The results showed that the TLCD with Dichroic Dye‐doped Liquid Crystal (DDLC) has a good display effect.

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Advances in the design of optical see-through displays

Cited by 6 publications

References 82 publications

Advancements in Optical See-through Near-Eye Display

Advancements in Optical See-through Near-Eye Display

Stray light analysis and design optimization of geometrical waveguide

P‐4.2: Study on Optical Performances of Transparent LCD with Dichroic Dye‐doped Liquid Crystal

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