scholarly journals Full-color reflectance-tunable filter based on liquid crystal cladded guided-mode resonant grating

2016 ◽  
Vol 24 (20) ◽  
pp. 22892 ◽  
Author(s):  
Chun-Ta Wang ◽  
Hao-Hsiang Hou ◽  
Ping-Chien Chang ◽  
Cheng-Chang Li ◽  
Hung-Chang Jau ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Tunable Filter ◽  
Full Color ◽  
Guided Mode ◽  
Resonant Grating

Full-color reflector using vertically stacked liquid crystal guided-mode resonators

2017 ◽  
Vol 56 (14) ◽  
pp. 4219 ◽  
Author(s):  
Chun-Ta Wang ◽  
Ping-Chien Chang ◽  
Jia Jin Lin ◽  
Mao Chou Tai ◽  
Yung-Jr Hung ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Full Color ◽  
Guided Mode

scholarly journals Enlarging the Eyebox of Maxwellian Displays with a Customized Liquid Crystal Dammann Grating

Crystals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 195
Author(s):  
Ziqian He ◽  
Kun Yin ◽  
Kuan-Hsu Fan-Chiang ◽  
Shin-Tson Wu
Keyword(s):  
Liquid Crystal ◽  
Optical System ◽  
Proof Of Concept ◽  
System Configuration ◽  
Distributed Energy ◽  
Good Efficiency ◽  
High Brightness ◽  
Full Color ◽  
Crystal Polymer ◽  
Maxwellian View

The Maxwellian view offers a promising approach to overcome the vergence-accommodation conflict in near-eye displays, however, its pinhole-like imaging naturally limits the eyebox size. Here, a liquid crystal polymer-based Dammann grating with evenly distributed energy among different diffraction orders is developed to enlarge the eyebox of Maxwellian view displays via pupil replication. In the experiment, a 3-by-3 Dammann grating is designed and fabricated, which exhibits good efficiency and high brightness uniformity. We further construct a proof-of-concept Maxwellian view display breadboard by inserting the Dammann grating into the optical system. The prototype successfully demonstrates the enlarged eyebox and full-color operation. Our work provides a promising route of eyebox expansion in Maxwellian view displays while maintaining full-color operation, simple system configuration, compactness, and lightweight.

Full Color Liquid Crystal Light Valve Projector

1985 ◽  
Author(s):  
Ronald S. Gold ◽  
Arno G. Ledebuhr
Keyword(s):  
Liquid Crystal ◽  
Full Color ◽  
Light Valve

Design and Implementation of LCD Based on FPGA

2015 ◽  
Vol 738-739 ◽  
pp. 184-187
Author(s):  
Qing Fang Zhou ◽  
Jun Yang
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Experimental System ◽  
Operating Voltage ◽  
Description Language ◽  
Electronic Products ◽  
Full Color ◽  
Programmable Logic Devices ◽  
Hardware Description ◽  
Display Performance

Liquid crystal display (LCD) is one of the most dynamic electronic products in this century. It has been recognized as a key component of media era, since it has many characteristics, such as a low operating voltage, light volume, and excellent performance of full color display, and suitable for LSI drive and the like. In order to break the limitations of LCD, improve its animation display performance as multimedia television monitor, and strongly simplify the manufacturing to ensure the competitiveness on price, we designed a LCD module with the liquid crystal cell of TD-EDA experimental system based on FPGA, and achieved the control of LCD with hardware description language VHDL in this paper. The validation results of compiled program downloaded on programmable logic devices after compiling and simulating show that the LCD we designed can run correctly and relatively perfectly.

scholarly journals Hyperspectral Fluorescence LIDAR Based on a Liquid Crystal Tunable Filter for Marine Environment Monitoring

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 410
Author(s):  
Eleonora Aruffo ◽  
Andrea Chiuri ◽  
Federico Angelini ◽  
Florinda Artuso ◽  
Dario Cataldi ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Marine Environment ◽  
Detection System ◽  
Tunable Filter ◽  
Spectral Interval ◽  
Environment Monitoring ◽  
Research Activities ◽  
Custom Made ◽  
New Instrument ◽  
Marine Environment Monitoring

An innovative hyperspectral LIDAR instrument has been developed for applications in marine environment monitoring research activities, remotely detecting the fluorescence spectra produced in the spectral interval between 400 nm and 720 nm. The detection system is composed by a custom made photomultiplier charge integrating and measuring (CIM) unit, which makes automatic background signal subtraction, and a liquid crystal tunable filter (LCTF). The new instrument therefore has hyperspectral resolution and allows automatic background subtraction; it is compact and automated by custom software that permit to adapt the instrument properties depending on the environmental conditions. Laboratory tests to characterize the instrument performance have been carried out, concluding that this sensor can be employed in remote sites for Chl-a detection.

Widely tunable guided-mode resonance filter using 90° twisted liquid crystal cladding

2017 ◽  
Author(s):  
Chun-Ta Wang ◽  
Hao-Hsiang Hou ◽  
Ping-Chien Chang ◽  
Keng-Hsien Lin ◽  
Cheng-Chang Li ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Guided Mode ◽  
Guided Mode Resonance
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