Development of a 42‐in. 2‐D/3‐D switchable display using multi‐view technology for public‐information‐display applications

Kim, K. J.; Kang, Hang-Bong; Jang, M. K.; Ahn, Byung‐Chul; Chung, In‐Jae; Park, T. S.; Chang, Jin-Wook; Lee, K. I.; Kim, S. T.

doi:10.1889/1.2812990

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…Through this analysis we obtain a dynamical equation for the amplitude that modulates the periodic smectic layering. This procedure allows us to obtain physical insights about local equilibrium The work is directly motivated by recent experiments in the sintering of toroidal focal conic domains in thin films of smectic liquid crystals [27,61], which show novel morphologies, including conical pyramids and concentric rings. By both simulating the sintering of focal conics and comparing the results to an asympotic analysis of the governing equations, we reproduce the evaporation process that takes place in the experiments, while clarifying the limitations of classical interface equations.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Role of Gaussian curvature on local equilibrium and dynamics of smectic-isotropic interfaces

2019

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Recent research on interfacial instabilities of smectic films has shown unexpected morphologies that are not fully explained by classical local equilibrium thermodynamics. Annealing focal conic domains can lead to conical pyramids, changing the sign of the Gaussian curvature, and exposing smectic layers at the interface. In order to explore the role of the Gaussian curvature on the stability and evolution of the film-vapor interface, we introduce a phase field model of a smectic-isotropic system as a first step in the study. Through asymptotic analysis of the model, we generalize the classical condition of local equilibrium, the Gibbs-Thomson equation, to include contributions from surface bending and torsion, and a dependence on the layer orientation at the interface.A full numerical solution of the phase field model is then used to study the evolution of focal conic structures in smectic domains in contact with the isotropic phase via local evaporation and condensation of smectic layers. As in experiments, numerical solutions show that pyramidal structures emerge near the center of the focal conic owing to evaporation of adjacent smectic planes and to their orientation relative to the interface. Near the center of the focal conic domain, a correct description of the motion of the interface requires the additional curvature terms obtained in the asymptotic analysis, thus clarifying the limitations in modeling motion of hyperbolic surfaces solely driven by mean curvature.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Role of Gaussian curvature on local equilibrium and dynamics of smectic-isotropic interfaces

2019

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“…Sharp Inc. [17] also developed a 2D/3D switchable display with a switchable binary liquid crystal panel in front of a LCD; it is similar to the Nintendo 3DS but with a configuration shown in Figure 2a. Meanwhile, Samsung Inc. [18] and LG Inc. [19] have published a similar work with a switching LCD barrier inserted between the LCD and its backlight. Sanyo Inc. [20] used polymer-dispersed liquid crystal (PDLC) as a transparent/diffuse switchable film.…”

Section: Parallax Barriermentioning

confidence: 99%

Investigation of Autostereoscopic Displays Based on Various Display Technologies

2022

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The autostereoscopic display is a promising way towards three-dimensional-display technology since it allows humans to perceive stereoscopic images with naked eyes. However, it faces great challenges from low resolution, narrow viewing angle, ghost images, eye strain, and fatigue. Nowadays, the prevalent liquid crystal display (LCD), the organic light-emitting diode (OLED), and the emerging micro light-emitting diode (Micro-LED) offer more powerful tools to tackle these challenges. First, we comprehensively review various implementations of autostereoscopic displays. Second, based on LCD, OLED, and Micro-LED, their pros and cons for the implementation of autostereoscopic displays are compared. Lastly, several novel implementations of autostereoscopic displays with Micro-LED are proposed: a Micro-LED light-stripe backlight with an LCD, a high-resolution Micro-LED display with a micro-lens array or a high-speed scanning barrier/deflector, and a transparent floating display. This work could be a guidance for Micro-LED applications on autostereoscopic displays.

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“…However, different application requests different specification of the display unit with the consideration on effectiveness and efficiency. Therefore, quite a few integrated or switchable display unit have been proposed, including 2D/3D switchable display [1] and pico projector embedded into a handset with a direct view panel of its own [2] etc. In this paper, a versatile display unit which can be switched among 2D direct view, 3D direct view and projection modes while using single LC panel as the image source has been proposed.…”

Section: Introductionmentioning

confidence: 99%

31.4: Direct View and Projection Switchable Mobile Display

Huang

Chen

Lai

et al. 2009

Symp Digest of Tech Papers

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The function of mobile phone becomes more versatile as a personal assistant. In order to make display device optimized for different function of the mobile phone, this paper proposes a display device which can be switched among 2D direct view, 3D direct view and projection modes while using single liquid crystal(LC) panel as image source. The device features a highly collimated backlight unit and polymer dispersed liquid crystal(PDLC) diffuser at the back of the LC panel, and a switchable lenticular array as well as a stretchable projection lens in front. The ray tracing simulation has shown well controlled light path of the backlight module and sufficient image quality of the projection lens while maintaining the compactness of the device for mobile application.

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Development of a 42‐in. 2‐D/3‐D switchable display using multi‐view technology for public‐information‐display applications

Cited by 8 publications

References 2 publications

Role of Gaussian curvature on local equilibrium and dynamics of smectic-isotropic interfaces

Role of Gaussian curvature on local equilibrium and dynamics of smectic-isotropic interfaces

Investigation of Autostereoscopic Displays Based on Various Display Technologies

31.4: Direct View and Projection Switchable Mobile Display

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