Study on the measurement method of birefringence of liquid crystals cells
碩士 === 國立臺北科技大學 === 光電工程系 === 107 === This study used several methods to measure the optical path length and birefringence of voltage-driven liquid crystal cells, including Zeeman lasers, lock-in amplifiers, and interference spectroscopy. After comparing three different measurement methods, we found...
Main Authors: | , |
---|---|
Other Authors: | |
Format: | Others |
Language: | zh-TW |
Published: |
2019
|
Online Access: | http://ndltd.ncl.edu.tw/handle/c3cxxt |
id |
ndltd-TW-107TIT00124061 |
---|---|
record_format |
oai_dc |
spelling |
ndltd-TW-107TIT001240612019-11-15T05:27:31Z http://ndltd.ncl.edu.tw/handle/c3cxxt Study on the measurement method of birefringence of liquid crystals cells 液晶盒之雙折射量測方法研究 SUE, TSUNG-HAO 蘇琮皓 碩士 國立臺北科技大學 光電工程系 107 This study used several methods to measure the optical path length and birefringence of voltage-driven liquid crystal cells, including Zeeman lasers, lock-in amplifiers, and interference spectroscopy. After comparing three different measurement methods, we found that the optical path variation of the interference spectrum is significantly different from that of the Zeeman laser and the lock-in amplifier. The reason is due to the transparent conductive film (ITO) in the liquid crystal cell and the alignment film. To get the correct value, it is necessary to modify the measured result by an adjustment parameter. Finally, the blue phase liquid crystal cell is measured by interference spectrum, and the measured result is multiplied by the above-mentioned adjustment parameter to obtain the optical path variation and birefringence of the blue phase liquid crystal under voltage driving. WU, JIN-JEI CHEN, TIEN-JUNG 吳俊傑 陳殿榮 2019 學位論文 ; thesis 35 zh-TW |
collection |
NDLTD |
language |
zh-TW |
format |
Others
|
sources |
NDLTD |
description |
碩士 === 國立臺北科技大學 === 光電工程系 === 107 === This study used several methods to measure the optical path length and birefringence of voltage-driven liquid crystal cells, including Zeeman lasers, lock-in amplifiers, and interference spectroscopy. After comparing three different measurement methods, we found that the optical path variation of the interference spectrum is significantly different from that of the Zeeman laser and the lock-in amplifier. The reason is due to the transparent conductive film (ITO) in the liquid crystal cell and the alignment film. To get the correct value, it is necessary to modify the measured result by an adjustment parameter.
Finally, the blue phase liquid crystal cell is measured by interference spectrum, and the measured result is multiplied by the above-mentioned adjustment parameter to obtain the optical path variation and birefringence of the blue phase liquid crystal under voltage driving.
|
author2 |
WU, JIN-JEI |
author_facet |
WU, JIN-JEI SUE, TSUNG-HAO 蘇琮皓 |
author |
SUE, TSUNG-HAO 蘇琮皓 |
spellingShingle |
SUE, TSUNG-HAO 蘇琮皓 Study on the measurement method of birefringence of liquid crystals cells |
author_sort |
SUE, TSUNG-HAO |
title |
Study on the measurement method of birefringence of liquid crystals cells |
title_short |
Study on the measurement method of birefringence of liquid crystals cells |
title_full |
Study on the measurement method of birefringence of liquid crystals cells |
title_fullStr |
Study on the measurement method of birefringence of liquid crystals cells |
title_full_unstemmed |
Study on the measurement method of birefringence of liquid crystals cells |
title_sort |
study on the measurement method of birefringence of liquid crystals cells |
publishDate |
2019 |
url |
http://ndltd.ncl.edu.tw/handle/c3cxxt |
work_keys_str_mv |
AT suetsunghao studyonthemeasurementmethodofbirefringenceofliquidcrystalscells AT sūcónghào studyonthemeasurementmethodofbirefringenceofliquidcrystalscells AT suetsunghao yèjīnghézhīshuāngzhéshèliàngcèfāngfǎyánjiū AT sūcónghào yèjīnghézhīshuāngzhéshèliàngcèfāngfǎyánjiū |
_version_ |
1719290948965367808 |