Large-Area High-Contrast Hydrophobic/Hydrophilic Patterned Surface for Robust Electrowetting Devices

2019 ◽  
Vol 2 (2) ◽  
pp. 1018-1026 ◽  
Author(s):  
Hao Wu ◽  
Lingling Shui ◽  
Fahong Li ◽  
Rob Hayes ◽  
Alex Henzen ◽  
...  
Keyword(s):  
High Contrast ◽  
Large Area ◽  
Patterned Surface

Simplified All‐Solid‐State WO 3 Based Electrochromic Devices on Single Substrate: Toward Large Area, Low Voltage, High Contrast, and Fast Switching Dynamics

2020 ◽  
Vol 7 (3) ◽  
pp. 1901663 ◽  
Author(s):  
Pierluigi Cossari ◽  
Marco Pugliese ◽  
Cataldo Simari ◽  
Alessio Mezzi ◽  
Vincenzo Maiorano ◽  
...  
Keyword(s):  
Solid State ◽  
Low Voltage ◽  
High Contrast ◽  
Electrochromic Devices ◽  
Large Area ◽  
Fast Switching ◽  
Single Substrate ◽  
Switching Dynamics

Patterned surface dipole layers for high-contrast electroluminescent displays

1999 ◽  
Vol 75 (12) ◽  
pp. 1799-1801 ◽  
Author(s):  
F. Nüesch ◽  
Y. Li ◽  
L. J. Rothberg
Keyword(s):  
High Contrast ◽  
Patterned Surface ◽  
Surface Dipole

Arrays of large-area, tip/tilt micromirrors for use in a high-contrast projector

2012 ◽  
Vol 173 (1) ◽  
pp. 172-179 ◽  
Author(s):  
Reynald Hoskinson ◽  
Stefan Hampl ◽  
Boris Stoeber
Keyword(s):  
High Contrast ◽  
Large Area

OPTICAL AXIS GRATINGS IN LIQUID CRYSTALS AND THEIR USE FOR POLARIZATION INSENSITIVE OPTICAL SWITCHING

2009 ◽  
Vol 18 (01) ◽  
pp. 1-47 ◽  
Author(s):  
S. R. NERSISYAN ◽  
N. V. TABIRYAN ◽  
D. M. STEEVES ◽  
B. R. KIMBALL
Keyword(s):  
Liquid Crystals ◽  
Optical System ◽  
Optical Switching ◽  
High Efficiency ◽  
Optical Axis ◽  
Incident Light ◽  
Density Level ◽  
High Contrast ◽  
Large Area ◽  
Power Radiation

The ability of optical axis gratings (OAGs) to fully transfer the energy of an unpolarized incident light beam into the ±1st diffraction orders is explored below for development of a polarization-independent optical system with nonlinear transmission. Diffractive properties of OAGs based on azo dye doped liquid crystals (azo LCs) are efficiently controlled with low power radiation. Switching from diffractive to transmissive states of the OAG takes place within 50 ms at 60 W/cm2 power density level, while the diffractive state is restored within ~ 1 s in the absence of radiation. High contrast optical switching is demonstrated with violet as well as green laser beams. A photoswitchable OAG is paired with a light-insensitive OAG in diffraction compensation configuration to obtain an optical system switchable from high to low transmission state. The thinness of OAGs required for high contrast switching ensures high overall transmission of the system. Given also the spectrally and angularly broadband nature of OAG diffraction and the capability of azo LC material systems to respond both to cw as well as short laser pulses makes the optical system under discussion very promising for optical switching applications. Presentation of these results is preceded by an "opinionated" review of prior developments and demystifying of the fabrication technique of high efficiency large area OAGs.

Visually tolerable tiling (VTT) for making a large-area flexible patterned surface

2015 ◽  
Vol 2 (1) ◽  
pp. 86-90 ◽  
Author(s):  
Moon Kyu Kwak ◽  
Jong G. Ok ◽  
Sung Ho Lee ◽  
L. Jay Guo
Keyword(s):  
Flexible Substrate ◽  
Large Area ◽  
Patterned Surface ◽  
Roll To Roll

Large-area micro/nano-patterns on a flexible substrate were produced using the VTT (visually tolerable tiling) method, realizing invisible seam lines between small master tiles. This could be applied in the roll-to-roll imprinting process, producing large-area polarizers and microprism sheets without visible seam lines.

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