Abstract
This letter introduces the characteristics of the magnesium fluoride ( MgF 2 ) inorganic film deposited by an electron-beam evaporation system for liquid crystal display (LCD) applications. We first achieved homogeneous liquid crystal (LC) alignment by controlling the ion-beam (IB) irradiation energy intensity. We also showed that MgF 2 is more transparent than spin-coated polyimide (PI) in the visible wavelength. By chemical analysis, IB irradiation selectively broke the Mg-F bonding structure because of the IB energy intensity; thus, the MgF 2 surface was turned to an unstable MgF 2-x surface, resulting in homogeneous LC orientation. Moreover, the electrooptic characteristics of a homogeneously aligned twisted nematic (TN)-LCD on the MgF 2 layer showed good performance as the TN-LCD on the polyimide, showing a strong possibility of the MgF 2 material as an LC alignment layer.
| Original language | English |
|---|---|
| Article number | 6389705 |
| Pages (from-to) | 283-285 |
| Number of pages | 3 |
| Journal | IEEE Electron Device Letters |
| Volume | 34 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2013 Jan 1 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering
Cite this
}
Application of magnesium fluoride (MgF 2 ) thin films for liquid crystal alignment using ion-beam irradiation . / Kim, Iee Gon; Park, Hong Gyu; Han, Jae Jun; Han, Jeong Min; Seo, Dae-Shik.
In: IEEE Electron Device Letters, Vol. 34, No. 2, 6389705, 01.01.2013, p. 283-285.Research output: Contribution to journal › Article
TY - JOUR
T1 - Application of magnesium fluoride (MgF 2 ) thin films for liquid crystal alignment using ion-beam irradiation
AU - Kim, Iee Gon
AU - Park, Hong Gyu
AU - Han, Jae Jun
AU - Han, Jeong Min
AU - Seo, Dae-Shik
PY - 2013/1/1
Y1 - 2013/1/1
N2 - This letter introduces the characteristics of the magnesium fluoride ( MgF 2 ) inorganic film deposited by an electron-beam evaporation system for liquid crystal display (LCD) applications. We first achieved homogeneous liquid crystal (LC) alignment by controlling the ion-beam (IB) irradiation energy intensity. We also showed that MgF 2 is more transparent than spin-coated polyimide (PI) in the visible wavelength. By chemical analysis, IB irradiation selectively broke the Mg-F bonding structure because of the IB energy intensity; thus, the MgF 2 surface was turned to an unstable MgF 2-x surface, resulting in homogeneous LC orientation. Moreover, the electrooptic characteristics of a homogeneously aligned twisted nematic (TN)-LCD on the MgF 2 layer showed good performance as the TN-LCD on the polyimide, showing a strong possibility of the MgF 2 material as an LC alignment layer.
AB - This letter introduces the characteristics of the magnesium fluoride ( MgF 2 ) inorganic film deposited by an electron-beam evaporation system for liquid crystal display (LCD) applications. We first achieved homogeneous liquid crystal (LC) alignment by controlling the ion-beam (IB) irradiation energy intensity. We also showed that MgF 2 is more transparent than spin-coated polyimide (PI) in the visible wavelength. By chemical analysis, IB irradiation selectively broke the Mg-F bonding structure because of the IB energy intensity; thus, the MgF 2 surface was turned to an unstable MgF 2-x surface, resulting in homogeneous LC orientation. Moreover, the electrooptic characteristics of a homogeneously aligned twisted nematic (TN)-LCD on the MgF 2 layer showed good performance as the TN-LCD on the polyimide, showing a strong possibility of the MgF 2 material as an LC alignment layer.
UR - http://www.scopus.com/inward/record.url?scp=84873060966&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84873060966&partnerID=8YFLogxK
U2 - 10.1109/LED.2012.2230608
DO - 10.1109/LED.2012.2230608
M3 - Article
VL - 34
SP - 283
EP - 285
JO - IEEE Electron Device Letters
JF - IEEE Electron Device Letters
SN - 0741-3106
IS - 2
M1 - 6389705
ER -