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Bright color optical switching device by polymer network liquid crystal with a specular reflector
- Bright color optical switching device by polymer network liquid crystal with a specular reflector
- Lee, GH[Lee, Gae Hwang]; Hwang, KY[Hwang, Kyu Young]; Jang, JE[Jang, Jae Eun]; Jin, YW[Jin, Yong Wan]; Lee, SY[Lee, Sang Yoon]; Jung, JE[Jung, Jae Eun]
- DGIST Authors
- Jang, JE[Jang, Jae Eun]
- Issue Date
- Optics Express, 19(14), 13097-13104
- Article Type
- Chemistry; Color; Color Chromaticity; Color Filters; Color Gamuts; Color Image Processing; Color Images; Contrast Ratio; Equipment; Equipment Design; Equipment Failure Analysis; Excellent Performance; Instrumentation; Lenses; Limit Values; Liquid Crystal; Liquid Crystals; Moving Image; Multiple Interactions; Operating Voltage; Optical Instrumentation; Optical Switches; Optical Switching Devices; Polymer; Polymer Networks; Polymers; Reflection; Reflective Devices; Reflective Modes; Refractometry; Signal Processing; Signal Processing, Computer-Assisted
- The color optical switching device by polymer network liquid crystal (PNLC) with color filter on a specular reflector shows excellent performance; white reflectance of 22%, color gamut of 32%, and contrast ratio up to 50:1 in reflective mode measurement. The view-angle dependence of the reflectance can be adjusted by changing the PNLC thickness. The color chromaticity shown by the device is close to the limit value of color filters, and its value nearly remains with respect to the operating voltage. These optical properties of the device can be explained from the prediction based on multiple interactions between the light and the droplets of liquid crystal. The high reflectance, vivid color image, and moderate responds time allow the PNLC device to drive good color moving image. It can widely extend the applications of the reflective device. © 2011 Optical Society of America.
- OSA - The Optical Society
- Related Researcher
Jang, Jae Eun
Advanced Electronic Devices Research Group(AEDRG)
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