Student Paper Award Announced!!

Session Index

Display Technology

Oral Session 3 - Display Technology
Friday, Dec. 5, 2014  08:00-09:30
Chair: Chia-Ron Lee,Ko-Ting Cheng
Room: F10
Notes:
08:00 - 08:15 Paper No.  2014-FRI-S0703-O001
Chin-Yu Liu Study of Liquid Crystal Alignments using RF sputter deposited a-IGZO thin films
Chin-Yu Liu,AnupKumar Sahoo,Gwomei Wu,

In this paper, a-IGZO inorganic films were deposited at a fixed oblique angle 60° using radio-frequency sputtering on ITO glass as an alternative alignment layer for LCDs. The obtained critical voltage of LC cells is 1.8 V for both two different type of a-IGZO film as an alignment layer.

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08:15 - 08:30 Paper No.  2014-FRI-S0703-O002
Yi-Chen Chen Bistable Polymer Stabilized Cholesteric Texture with Novel Electrode System in Window Applications
Cheng-Chang Li,Yi-Chen Chen,Heng-Yi Tseng,Tsung-Wei Pai,Yu-Ching Wu,Wen-Hao Hsu,Hung-Chang Jau,Chun-Wei Chen,Tsung-Hsien Lin,

An electrically activated bistable light shutter which exploits polymer-stabilized cholesteric liquid crystal film was developed. By using double-sided three-terminal electrode driving, it can be bistable, switched between focal conic and homeotropic textures with a uniform in-plane and vertical electrical field. The bistable light shutter can control illumination and the flow of energy.

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08:30 - 08:45 Paper No.  2014-FRI-S0703-O003
Ting-Yun Wu The Study of Micro-spheres and Polymer Components Applied on PDLC
Ting-Yun Wu,Chii-Chang Chen,

Polymer disperse liquid crystal (PDLC) is a new type of display device. In this article doping micro-sphere into PDLC can decrease the operating voltage to 45V and also have high transmittanceΔT about 65%.

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08:45 - 09:00 Paper No.  2014-FRI-S0703-O004
Li-Hao Jian Spatial control of lasing peak from cholesteric liquid crystal laser
Li-Hao Jian,Chun-Hao Chen,Kuan-Cheng Liao,Ja-Hon Lin,Shwu-Yun Tsay,

We investigated the widely tuning of lasing peak from dye-doped cholesteric liquid crystal in glass cell through temperature. As the pump laser was focused at different position on the cell, the peak wavelength is widely tunable from 561 to 639 nm owing to the pitch variation of the photonic crystal.

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09:00 - 09:15 Paper No.  2014-FRI-S0703-O005
Cheng-Yen Chien Control laser speckle noise using polymer dispersed liquid crystals
Cheng-Yen Chien,Ja-Hon Lin,

The reduction of speckle noise was first experimentally demonstrated by using the polymer dispersed liquid crystals. Above the 30 Hz repetition rate triangular function, the speckle noise reduction condition was trigged.External voltage about 8V, the minimum of contrast and the largest value of the reduction ratio, speckle noise was obtained.

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09:15 - 09:30 Paper No.  2014-FRI-S0703-O006
ChienLung Huang Development of IGZO TFT by pulse-DC magnetron sputtering deposition for enhancing the device performance
WeiSheng Liu,ChienLung Huang,

This study investigated the usage of pulse-DC sputtering for indium-gallium-zinc oxide (IGZO) channel deposition, and improved the device performance of a thin-film transistor (TFT). The pulse-DC system can be operated with modulated pulse frequency for increased deposition rate and reduced arc-damaged defects for the thin-film deposition. The IGZO films fabricated at a duty cycle of 35% were adopted as the transistor channel layer of a TFT, which exhibited an improved carrier mobility of 5.86 cm2/V-s, a subthreshold swing of 0.5 V/dec, an off current of 1.1 × 10-10 A, and an on-off current ratio of 3.2 × 105. The results indicate that pulse-DC sputtering can be used in developing TFTs with superior device characteristics.

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