Session Index

Display Technology

Display Technology I
Thursday, Dec. 7, 2017  13:00-14:45
Presider: Tsung-Hsien Lin;Ko-Ting Cheng
Room: International Research Building IR6002-B(6F)
Notes:
13:00 - 13:30 Paper No.  2017-THU-S0701-I001
Invited Speaker:
Wai-Yeung Wong
Phosphorescent White Organic Light-emitting Diodes (WOLEDs) as Future Lighting Sources*
Wai-Yeung Wong

White organic light-emitting diodes (WOLEDs) offer a promising avenue to developing future energy-saving solid-state lighting sources because of their intrinsic characters such as low driving voltages, high brightness and efficiency, large area, etc. While commercialization of WOLEDs has attracted tremendous interest in both academic and industrial communities, the discovery of highly efficient phosphors opens up a good channel to meet this target. With the goal towards practical application, many design strategies, including new materials synthesis, judicious design of device configuration, wise management of charges/excitons in different active layers, development of sophisticated and low cost fabrication procedures, etc. have been put forward to achieve high efficiency, good white color stability and quality. In this lecture, the most recent advances in various aspects of the phosphorescent WOLEDs by our research group are presented.

 
 
13:30 - 13:45 Paper No.  2017-THU-S0701-O001
Guan - Wei Wu Award Candidate Electrical tunability of the Bragg bandgap in a cholesteric liquid crystal cell
Guan - Wei Wu;Po - Chang Wu;Wei Lee

The electrically tunable Bragg bandgap in a cholesteric cell with negative dielectric anisotropy is demonstrated and the temperature-dependent spectral properties of the cell are investigated. The Bragg bandgap can be flexibly tuned within the visible spectral region by modulating either the frequency or the amplitude of an externally applied voltage.

 
 
13:45 - 14:00 Paper No.  2017-THU-S0701-O002
Jia-Hao Li Award Candidate Linear polarization rotator by double-layer twisted-nematic liquid crystal cells
Jia-Hao Li;Ko-Ting Cheng;Min-Cheng Tsai;Cheng-Kai Liu;Te-yuan Chung

This study reports the configuration of a linear polarization rotator composed of double-layer twisted-nematic liquid crystal (TNLC) cells. To obtain the good degree of linear polarization of the output linearly polarized lights, the cell gap difference between these two TNLC cells should be less than 300 nm.

 
 
14:00 - 14:15 Paper No.  2017-THU-S0701-O003
Po-Cheng Lai Award Candidate A-Si:H Gate Driver Circuit with High Speed Operation for Full-HD AMLCDs
Po-Cheng Lai;Ching-En Lee;Chih-Lung Lin

This work proposes a gate driver circuit based on hydrogenated amorphous silicon thin-film transistors to accelerate the discharge of output waveform for full high-definition resolution displays. By using output signal of the next stage to raise the gate-node voltage of driving TFT, a high discharging capability is obtained.

 
 
14:15 - 14:30 Paper No.  2017-THU-S0701-O004
Ting-Wei Chiu Award Candidate Concave microlens arrays on glass substrates using photolithographic process and their optical properties
Ting-Wei Chiu;Su-Hua Chen;Chen-Yu Pai;Mao-Ku Wei

Transparent concave microlens arrays were successfully made on glass substrates using a simple photolithographic process. The shape of microlenses can be adjusted by varying the exposure dose. The luminous efficiency of organic light-emitting device can be enhanced up to 49%, even though the fill factor is as low as 48%.

 
 
14:30 - 14:45 Paper No.  2017-THU-S0701-O005
Ying Ju Lin Award Candidate Field-Sequential-Color LCDs for Vehicle Head-Up Displays: Color Breakup Suppression Using 180Hz Limited Backlight Signal Ratio Method
Ying Ju Lin;Qin Zong

This paper utilizes a LBSR method to suppress CBU for FSC LCDs used in vehicle HUDs. This method not only makes the CBU imperceptible but also achieves high image fidelity by using 180Hz LCDs with global-dimming backlights, leading HUD to be approximately three-times optically efficient without the color filters.

 
 


Display Technology

Display Technology II
Thursday, Dec. 7, 2017  15:15-17:00
Presider: Jiun-Haw Lee;Chih-Lung Lin
Room: International Research Building IR6002-B(6F)
Notes:
15:15 - 15:45 Paper No.  2017-THU-S0702-I001
Invited Speaker:
Yi-Pai Huang
Micro-optical components for Light Field AR/VR Display Application
Yi-Pai Huang

Depth, resolution, and field of view(FoV) are always the key factors in light field technology. With optimized micro-optical component, the three factors can be fully compensated. Those micro-optical devices can be passive or electrically driven. In this presentation, we will focus on discussing various Liquid Crystal devices which can change the focal length, scan and shift the image position, which can also result in high-resolution image. Additionally, the optimized free-form optical lens array can further enlarge the FoV of AR/VR glass. Finally, the new application of using VR display for bio-medical application will be discussed.

 
 
15:45 - 16:00 Paper No.  2017-THU-S0702-O001
Po-Han Tsai Award Candidate Using a Scattering Film to Eliminate Reflective Diffraction while Keeping Image Sharpness for OLED Displays
Po-Han Tsai;Chi-Chieh Wu;Zong Qin;Yi-Pai Huang

To eliminate reflective diffraction in OLED display, a scattering film whose threshold haze and transmittance is calculated is applied based on contrast sensitivity function (CSF). Also, the maximum distance between the scattering film and OLED that can make image quality beyond certain MTF criterion is determined depending on different resolutions.

 
 
16:00 - 16:15 Paper No.  2017-THU-S0702-O002
Fang Yu Liu Award Candidate A transparent display with high image quality composed of organic light-emitting diode and cholesteric liquid crystal light shutter
Fang Yu Liu

Transparent display is expected to be a next generation technology which has been sufficiently discussed in recent year. However, the image quality of the transparent active matrix organic light-emitting diode. In this work, the concept of high-image-quality transparent display based on AMOLED with a desirable liquid crystal shutter is demonstrated.

 
 
16:15 - 16:30 Paper No.  2017-THU-S0702-O003
T. JAIRAM Award Candidate Synthesis, Photophysical and Electrochemical Studies of di-triphenylamine-1, 10 Phenontroline based fluorophore for Organic Light Emitting Diodes
T. JAIRAM;Sivakumar Vaidyanathan

Abstract: Organic Light Emitting Diodes are gaining interest due to their significant contribution in the field of lighting and displays technology. In the present study, a new di-triphenylamine-1, 10 Phenontroline based fluorophore have been designed and synthesized. A detailed photophysical and electrochemical properties were systematically studied.

 
 
16:30 - 16:45 Paper No.  2017-THU-S0702-O004
Jung-Chun Tseng Award Candidate Composite polythiophene field effect transistors with multifunctional graphene nanostructures
Jung-Chun Tseng

We investigate multifunctional graphene nanostructures as carrier mobility enablers and moisture and air barrier films for organic-based polythiophene FET. The carrier mobility of Gr-P3HT FET was higher than pristine P3HT device mobility ten times. Gr-P3HT FET laminated with graphene passivation layers exhibit significantly superior and prolonged performances over 1350 hours.

 
 
16:45 - 17:00 Paper No.  2017-THU-S0702-O005
Mao Chou Tai Influence of floating ITO Effect on Reliability in a-IGZO TFT
Mao Chou Tai;Ting-Chang Chang;Hsiao-Cheng Chiang;Yu-Ching Tsao;Yu-Chieh Chien

In this work, we reported that a dual gate TFT when the top gate ITO is floating could suppress the threshold voltage shift of TFTs after negative bias temperature stress. TCAD simulations of the electrostatic potential and evidence of capacitance coupling has been further discussed.

 
 


Display Technology

Poster Session II
Thursday, Dec. 7, 2017  15:30-17:00
Presider: -
Room: International Research Building 5F
Notes:
Paper No.  2017-THU-P0702-P001
Wu Yo Tang Award Candidate Highly Efficient Organic Light-Emitting Diodes Based on Exciplex System
Wu Yo Tang

We demonstrate an exciplex phosphorescent organic light-emitting diode (OLED) exhibiting high efficiency, low operational voltage, and low efficiency roll-off characteristics. The improved performance of the device originates from the efficient energy transfer from both the singlet and triplet energy levels to the phosphorescent dopant via the exciplex formed.

 
 
Paper No.  2017-THU-P0702-P002
Wen-Yi Yang Award Candidate Photoinduced textural switching by polarized ultraviolet light in an azo-chiral-doped liquid crystal
Wen-Yi Yang;Yu-Lin Shen;Po-Chang Wu;Wei Lee

The effect of polarized ultraviolet light on the photoinduced textural transition in an azo-chiral-doped liquid crystal cell is investigated. Using polarized ultraviolet light can lower the light intensity required for unwinding LC helices. Varying the light polarization state can switch the cell between the helical cholesteric and unwound nematic states.

 
 
Paper No.  2017-THU-P0702-P003
Shih-Siang Yan Award Candidate Study on Fabrication of Fine-Pitch Red Micro-LED Displays
Shih-Siang Yan;Huan-Yu Chien;Ken-Yen Chen;Dong-Sing Wuu;Ray-Hua Horng

Fabrication of red-light micro-LED display with 64 x 32 pixels was developed. Transparent sapphire substrate was used to replace the original GaAs substrate by flip-chip and epilayer-transferred technique. The luminance of micro-LED is three times brighter than the luminance of OLED as operating in the same driving mode.

 
 
Paper No.  2017-THU-P0702-P004
Chi-Che Chen Award Candidate Effects of polymer-assisted vertical alignment on the electro-optical properties of in-plane-switching-based liquid crystal devices
Chun-Ying Yang;Chi-Che Chen;Guan-Jhong Lin;Tien-Jung Chen;Jin-Jei Wu

A simple alignment method for fabricating vertically aligned in-plane switching liquid crystal cells is proposed. A non-uniform vertical electric field and monomer are employed in the VA-IPS LC cells during the photo-curing process.Compared to the conventional VA-IPS cell, the proposed cell shows a lower driving voltage and good response time

 
 
Paper No.  2017-THU-P0702-P005
Sheng-Ping Chiang Award Candidate Optically controlled mid-infrared polarization rotator
Sheng-Ping Chiang;Chun-Ta Wang;Jui-Yu Lai;Chia-Lun Tsai;Cheng-Chang Li;Hung-Chang Jau;Chien-Tsung Hou;Shang-Da Yang;Tsung-Hsien Lin

We proposes an optically controlled mid-infrared polarization rotator that incorporates a twisted nematic liquid crystal (TNLC) device using a photo-alignment material.The photo-alignment method can be generated arbitrary twisting angles by the use of visible polarized light. Therefore, a linearly polarized mid-IR light beam with arbitrary rotation angles can be realized.

 
 
Paper No.  2017-THU-P0702-P006
Jun-Wei Huang Award Candidate Electrically controllable random lasing of dye-doped nematic liquid crystal laser inside Capillary fiber
Jun-Wei Huang

We demonstrated the random lasers (RLs) from dye-doped nematic liquid crystals (DD-LCs) into the Capillary fiber (CF). After applying external sinusoidal voltage on the CF, the emission intensity of (RLs) would be obviously enhanced resulted from the enhancement of serious light scattering inside CF.

 
 
Paper No.  2017-THU-P0702-P007
Ting-Mao Feng Tri-stable cholesteric liquid crystal smart window with multi-electrode driving
Ting-Mao Feng;Cheng-Chang Li;Heng-Yi Tseng;Chun-Wei Chen;Chun-Ta Wang;Hung-Chang Jau;Yu-Ching Wu;Wen-Hao Hsu;Tsung-Hsien Lin

The CLC can be switched between focal-conic and planner states; furthermore, the ULH state is also achieved by a pulse voltage under IPS. By the use of dye doped CLC with reflection band in non-visible light, it becomes a functional window which can be switched between three stable states.

 
 
Paper No.  2017-THU-P0702-P008
Yi-Shou Tsai High Ambient Contrast Ratio OLED Device with Optical Film
Yi-Shou Tsai;Yu-Ju Chao;Yu-Hsiang Liu;Jian-Lung Chen;Kuan-Ting Chen

Organic light emitting diode (OLED) displays usually have applied in commercial products. However, the ambient contrast ratio of OLED devices is still a question. In this paper, we propose an optical film integrated with the OLED device and the ambient contrast ratio is 20.6 at 500 lux of ambient light.

 
 
Paper No.  2017-THU-P0702-P009
Siao Huei Jhen Fabrication of metal:Liq composite/metal/HATCN interconnecting layers for high efficiency of tandem white organic light emitting devices
Siao Huei Jhen;Chi Chien An;Li Jung Yu;Chen Shih Pu

In this study, We fabricated metal:Liq composite/metal/HATCN as interconnecting layer for tandem WOLEDs . We found that electron injection efficiency increases with more doping concentration of Liq in thicker metal :Liq composite layer.The maximum brightness and efficiency for the tandem WOLEDs are 52,358 cd/m2 and 92 cd/A

 
 
Paper No.  2017-THU-P0702-P010
Chang-Min Shao Efficient Phosphorescent Organic Light-Emitting Diodes by Adopting Highly Transparent Electrodes
Chang-Min Shao;Ting-Ya Chiu;Thsung-Che Chiang;Chih-Hao Chang;Hsin-Hua Chang

A MoO3/Ag/MoO3 (MAM) transparent electrode was developed which aims for realizing transparent organic light-emitting diodes (TOLEDs). Thermal evaporation of the silver layer adopted varied rates to optimize the conductivity and transmittance. Blue, green and red TOLEDs with optimized MAM anode exhibited external quantum efficiencies of 12.0%, 12.0%, and 13.4%, respectively.

 
 
Paper No.  2017-THU-P0702-P011
Yi-Chen Lin Digital Pixel Memory Circuit Including a Scan-Controlling Inverter by Technology of A-Si TFT for Low Power Application
Po-Tsun Liu;Guang-Ting Zheng;Yi-Chen Lin

The proposed design presents a low power consumption pixel memory circuit by using amorphous silicon thin-film transistors (A-Si TFTs). This work could store the frame data and generate the corresponding inversion pixel signals by AC signal technique to refresh the static image without data driver.

 
 
Paper No.  2017-THU-P0702-P012
Zheng-Liang Huang Fabrication of lateral-cathode triode field emission device for lighting applications
Zheng-Liang Huang;Meng-Jey Youh;Ming-Chia Liu;Zhi-Ri Zhang;Yu-Che Li;Yuan-Yao Li

The study is to develop a lateral-cathode triode field emission device. In order to increase the lifetime of the devices, we used the pulse width modulation technique for the enhancement of the device performance. As a result, stable current density can be achieved using a lateral cathode structure.

 
 
Paper No.  2017-THU-P0702-P013
Chun-Hao Lai White Organic Light-Emitting Diodes by Using Molecules with Blue Aggregation-Induced Emission
Chun-Hao Lai;Yan-Teng Luo;Chi-Hao Chan;Chih-Hao Chang;Gintare Krucaite;Dmytro Volyniuk;Saulius Grigalevicius

Triphenylethene moiety decorated with different carbazole-based substitutions were synthesized, aiming to realize molecules harvesting blue aggregation-induced emission. 1,1,2- Triphenyl-2-[9-(2-ethylhexyl)carbazol-2-yl]ethylene (1) and 1,1,2-Triphenyl-2-[9-((3- methyloxetan-3-yl)methyl)carbazol-2-yl]ethylene (2) were selected as emitters in fabricating white organic light-emitting diodes (OLEDs). The maximum efficiencies of white OLEDs were recorded at 2.8%, demonstrating their high potential for EL applications.

 
 
Paper No.  2017-THU-P0702-P014
Su Yu Ci Study of Sol-gel-deposited ZnO Light Extraction Thin Films to Enhance the Efficiency in Organic Light-Emitting Diodes
Su Yu Ci

We fabricated organic light-emitting diodes with internal light extraction structure to reduce the Waveguide mode loss and increase the EQE by using the Sol-gel-deposited ZnO light extraction thin films. And successfully fabricated the organic light-emitting diodes on flexible plastic substrate.

 
 


Display Technology

Display Technology III
Friday, Dec. 8, 2017  08:30-10:15
Presider: Yi-Pai Huang;Tien-Lung Chiu
Room: International Research Building IR6002-B(6F)
Notes:
08:30 - 09:00 Paper No.  2017-FRI-S0703-I001
Invited Speaker:
Hiroyuki Yoshida
Functional diffractive optical elements with liquid crystals
Hiroyuki Yoshida

Liquid crystal molecules in standard devices are uniformly oriented over a relatively large area. However, there is recently increased interest in liquid crystals with orientation patterned on the sub-micron to micron range. Light propagating through patterned liquid crystals acquire a phase, commonly known as the Berry phase, that depends on the orientation of the optic axis. A flat slab of liquid crystal can thus perform as a diffractive optical element that transcribes the orientation distribution of the liquid crystal onto the transmitted or reflected phase of light. Various devices based on the concept will be presented and its potential use in future displays will be discussed.

 
 
09:00 - 09:15 Paper No.  2017-FRI-S0703-O001
Sheng-Guo Xu Optimize Microlens Array and Black Matrix for Color Separation in Color-Filter-Free LCD
Sheng-Guo Xu;Chih-Hsuan Kuo;Tun-Chien Teng

In this study, we optimized both the elliptical lenticular microlens and black matrix layout to improve both the efficiency and color gamut for a color-filter-free LCD system. For the optimal condition with the aperture ratio of 56.5%, the color gamut and optical efficiency is 70% and 60%, respectively.

 
 
09:15 - 09:30 Paper No.  2017-FRI-S0703-O002
Keng-Hsien Lin Full-color reflective display based on RGB stacked tunable liquid crystal reflectors
Keng-Hsien Lin;Tsung-Hsien Lin;Chun-Ta Wang;Ping-Chien Chang;Jia-Jin Lin;Yung-Jr Hung

A full-color reflective display was designed using three stacked RGB reflection gratings hybrid with the tunable 90o twisted nematic liquid crystal. The color reflector that is based on a guided-mode resonator grating structure reflects at the resonance wavelength, and a 90o TNLC to control the intensity of reflection.

 
 
09:30 - 09:45 Paper No.  2017-FRI-S0703-O003
Ching-Yeng Tu Polarization selective scattering based on polymer dispersed liquid crystals and interdigitated electrodes
Ko-Ting Cheng;Cheng-Kai Liu;Ching-Yeng Tu;Zhe-Yuang Liang

This study reports the polarization selective scattering based on polymer dispersed liquid crystals (PDLCs) and in-plane-switching (IPS) electrodes. In order to demonstrate the polarization-selective light scattering of PDLCs, the glass substrates coated with crossed interdigitated IPS electrodes were employed.

 
 
09:45 - 10:00 Paper No.  2017-FRI-S0703-O004
Hsu Chieh-Hsiang Spontaneously induced liquid crystal alignments in ionic nanoparticles-doped liquid crystals
Cheng Ko-Ting;Liu Cheng-Kai;Yang Hao-Shiun;Hsu Chieh-Hsiang;Wu Chao-Hsuan;Lai Chung K.;Kuo Hsiu-Ming

The feasibility to achieve various liquid crystal (LC) alignments in ionic nanoparticles-doped LCs (INPdLCs) has been demonstrated. Various alignment types, including vertical and homogeneous alignments, can also be approached as the INPs spontaneously adhere onto the substrates coated with various materials. The electrochemistry of the INPs is also investigated.

 
 


Display Technology

Poster Session III
Friday, Dec. 8, 2017  12:30-14:00
Presider: -
Room: International Research Building 5F
Notes:
Paper No.  2017-FRI-P0703-P001
JIUN-HAW LEE 1,3,5-Tris(N-carbazolyl)benzene as the Host of Blue Phosphorescent Organic Light-emitting Diode
JIUN-HAW LEE

High efficiency blue phosphorescent organic light-emitting diode with 1,3,5-Tris(N-carbazolyl)benzene as the host in the emitting layer was demonstrated with maximum current efficiency 51.2 cd/A and external quantum efficiency of 22.5%.

 
 
Paper No.  2017-FRI-P0703-P002
I-Han Liu Study on Back-Channel Etched of In-W-Zn-O Thin Film Transistors Technology
I-Han Liu;Po-Tsun Liu

We investigated TFT with the Back-channel bi-layer structure of active layers. High mobility a-IWZO (WO3:4%) as front channel, tungsten-rich (WO3:15%) a-IWZO as back channel. Back channel could resist etching solution damage to improve performance. The optimized device had 12.81(cm2/Vs) mobility, Vth of 0.06(V) and S.S. of 0.83(V/decade).

 
 
Paper No.  2017-FRI-P0703-P003
Hung-Cheng Tsai Engrave Glass Light Guide Plate with Microstructures Using Pico-Laser
Hung-Cheng Tsai;Chi-Tse Ko;Yueh-Jung Chen;Chih-Hsiang Hsu;Tun-Chien Teng

We used a pico-laser of 532 nm to directly engrave a glass substrate with concave microstructures to evaluate the feasibility of practically fabricating a glass light guide plate for a edge-lit backlight; determined the process window, and confirmed the repeatability. The experimental results verified the concept is feasible.

 
 
Paper No.  2017-FRI-P0703-P004
Chen Chu Lung Color Pattern Recognition Based on HSV Color Space by Using Simulated Annealing on Liquid Crystal Device
Huang Guan Syun;Chen Chu Lung;Hsiao Chih Wei

The research used joint three channel system to conduct color image recognition. We converted color image to three components of HSV color space. Using simulated annealing method to compute approximate optimal quantized reference function and matching with Mach-Zehnder joint transform correlator, the system has good recognition effect.

 
 
Paper No.  2017-FRI-P0703-P005
Shih-Hsuan Chen Analysis of moiré effects in automatic inspection of periodic patterns: preliminary study in TFT-LCD
Shih-Hsuan Chen;Jian-Jia Su;Chung-Hao Tien

Moiré patterns become annoyingly visible as the spatially aliasing periods exceed the threshold value defined by the sensitivity of machine vision. Taking automatic optical inspection of a TFT-LCD as the case study, we formulate the mechanism of moiré pattern and optimize the parametric condition of a moiré-free measurement system.

 
 
Paper No.  2017-FRI-P0703-P006
Chun-Chen Wang Analysis of Electrical Characteristics of P-type Tin Monoxide Thin-Film Transistor by Gated-Four Probe Measurement
Chun-Chen Wang;Chia-Hsun Tsai;Shu-Ming Hsu;Dung-Yue Su;Feng-Yu Tsai;I-Chun Cheng

We investigated the contact resistances and intrinsic mobilities of p- type tin monoxide thin-film transistors with SnO channels annealed for various durations by the gated-four probe measurement.

 
 
Paper No.  2017-FRI-P0703-P007
Chien-Liang Chiu The Study of Hermetic Seal of Organic Light Emitting Diode with Glass Frit
Chien-Liang Chiu;Meng-Syun Lin;Wen-Yao Huang

931 days of lifetime OLED encapsulation. As the TPBi thickness is 20 nm, the OLED is obtained a maximum luminance of 21100 cd/m2, EQE of 6.8%, CE of 20.1 cd/A and PE of 15.1 lm/W, respectively. The shear strain and leakage testing is 12.995kg and 4.2×10-8 atm*cc/s.

 
 
Paper No.  2017-FRI-P0703-P008
Su-Hua Yang White OLED with Nanostructured Color Conversion Layers
Su-Hua Yang;Ting-Jing Huang;Tzu-Hao Liu

White organic light emitting diodes (OLEDs) with different configurations of nanostructured color conversion layer (CCL) were prepared. A sharp blue emission and broad red emission was obtained. The electroluminescence (EL) intensity and efficiency were enhanced by more than 15%. The EL properties of the white OLED were investigated.

 
 
Paper No.  2017-FRI-P0703-P009
Huan-Jie Gau Carrier Injection Layer for Alternating Current Driven Organic Device
Huan-Jie Gau;Tien-Lung Chiu;Jiun-Haw Lee

A series of Copper(II)phthalocyanine-based thin films were investigated by photoelectric spectrum to observe their energy level such as lowest unoccupied molecular orbit and highest occupied molecular orbit, applying for carrier injection layers of alternating current driven organic light emitting diode (AC-OLED).

 
 
Paper No.  2017-FRI-P0703-P010
Hisn-Jen Chen Transient Electroluminance for High Efficiency Organic Light Emitting Diode
Hisn-Jen Chen;Tien-Lung Chiu;Jiun-Haw Lee;Yu-Hsuan Hsieh;Man-kit Leung

Transient electroluminance (TREL) signals of high efficiency organic light emitting diode (OLEDs) were investigated using a universal host doped with blue, green and red emitters. The relatively longer TREL decayed signal represents the longer exciton lifetime, facilitating for high efficiency OLED.

 
 
Paper No.  2017-FRI-P0703-P011
Kai-Han Hsu Effects of the interdigital electrode structure on the electro-optical properties of cholesteric liquid crystal devices
Shao-Ming Lu;Kai-Han Hsu;Guan-Jhong Lin;Tien-Jung Chen;Jin-Jei Wu

To investigate the effects of interdigital electrode structures on electro-optical properties of cholesteric liquid crystal devices, three kinds of interdigital electrode structures are proposed. The effects of ChLC cells driven by the in-plane electric field on voltage-dependent helical structure, voltage-dependent transmittance, and voltage-dependent optical path difference are demonstrated and reported.

 
 
Paper No.  2017-FRI-P0703-P012
Lee-May Huang The Application of Chemically Synthesized Ion Conducting Poly (vinyl butyral) in Laminated Electrochromic Device
Lee-May Huang;Cheng-Yu Peng;Chih-Hung Chen;Bing-Mau Chen

The ionic conductivities of the chemically synthesized ion conducting-poly (vinyl butyral) (CSIC-PVB) films vary in the order of 10–3 down to 10–6 S/cm, whereas the adhesion strengths of these ion conducting PVB interlayers change from 3 to 11 N/mm2.

 
 
Paper No.  2017-FRI-P0703-P013
Yu-Zhe Zheng Effect of Annealing Temperature on Performance and Reliability of Polycrystalline Silicon TFTs under Illumination
Yu-Zhe Zheng;Ting-Chang Chang;Shin-Ping Huang;Bo-Wei Chen;Ann-Kuo Chu

This paper systematically studies the electrical characteristics of low temperature polycrystalline silicon (LTPS) TFTs under illumination measurement with different annealing temperature. The threshold voltage (Vth) decrease with increasing annealing temperature. This phenomenon is dominated by increasing recombination center under higher annealing temperature.

 
 
Paper No.  2017-FRI-P0703-P014
Yu-Jen Wang Liquid Crystal Devices in Augmented Reality: Image Registration, Vision Correction and Sunlight Readability
Yu-Jen Wang;Po-Ju Chen;Yi-Hsin Lin

Augmented reality (AR), a set of technology that augments users’ view with contextual and digital information, has important impact on human life. However, there are three major challenges regarding the optical system: registration, vision correction, and readability. We solved those challenges with liquid-crystal-based phase modulators and amplitude modulator, simultaneously