bluuebunny/crossref_metadata_2025_split huggingface dataset:
P‐119: A New Charge Pump Pixel Circuit for Reflective Displays
Authors: Jung Myoung‐Hoon , Kim Jungwoo , Song Byonggwon , Chung Deukseok , Yi Yunjeong , Jin Yong Wan , Lee Sang‐Yoon 
Published: July 2011

AbstractA novel charge pump pixel circuit for reflective display requiring high voltage driving, which is more than 10 V, is proposed for low‐power mobile application. By adopting proposed low‐voltage frame inversion method, we can reduce input data voltage swing to almost half of driving voltage on a pixel electrode, so the power consumption on parasitic elements can be substantially reduced.The operation of the pixel circuit was confirmed through the prototype of 3.6″ polymer dispersed liquid crystal displays and the simulation results show that the proposed approach reduces the power consumption by 64.3%, compared with the conventional driving method.
P‐120: High‐performance of Ink‐jet Printed Organic Thin‐film Transistors on Flexible Substrate using a Small Molecule‐polymer Blend
Authors: Kim Sung Hoon , Choi Min Hee , Kim Byung Soon , Jang Jin 
Published: July 2011

AbstractWe report the high performance, 6,13‐bis(triisopropyl silylethynyl) pentacene (TIPS‐pentacene) organic thin‐film transistors (OTFTs) by ink‐jet printing on a thin polymer layer. The OTFT with polymer/TIPS‐pentacene exhibited the saturation field‐effect mobility (μsat) of 1.11 cm2/Vs and threshold voltage (Vth) of −0.41 V. In contrast, the ink‐jet printed TIPS‐pentacene TFT without PS layer shows the μsat of 0.36 cm2/Vs and Vth of −0.62 V. The improved performance of polymer blended OTFT appears to be due to the improved crystallinity of the polymer blended TIPS‐pentacene layer.
P‐122: Solution‐processed Organic/Inorganic Hybrid CMOS‐type Inverter
Authors: Ji Seon‐Beom , Chung Seungjun , Kwon Soon‐Ki , Hong Yongtaek 
Published: July 2011

AbstractWe report solution‐processed organic/inorganic hybrid CMOS‐type inverter using 6,13‐bis (triisopropylsilylethynyl) pentacene (TIPS‐pentacene) and indium‐gallium‐zinc‐oxide (IGZO) for p‐ and n‐channel TFTs, respectively. IGZO and silver electrodes were inkjet‐printed and TIPS‐pentacene was drop‐cast. The field effect mobilities of p‐ and n‐channel TFTs were 0.02 and 0.99 cm2/V·s, respectively, and the inverter gain was −13.13 V/Vat VDD=40 V.
P‐124: Methods of Measuring Thin Film Thickness on Polymer Substrate
Authors: Chiang Chih‐Jung , Yang Fu‐Shiang 
Published: July 2011

AbstractIn this paper two methods of measuring the thickness of a thin film layer on polymer substrate are presented. The first one is based on a polarizing microscope and analyzing the interference spectrum of white light reflected by the specimen. The second is a microscope with a high numerical aperture lens. The interference fringes caused by the birefringence of the polymer substrate can be eliminated, and by a numerical procedure the film index and thickness can be extracted from the measured reflection spectrum. As an example, we made measurements on a single layer UV glue thin film coated on a polymer substrate, polyethylene terephthalate (PET) in this case. We used the Fourier Transform method to analyze the spectrum and confirmed the effect of these methods.
P‐211L: Late‐News Poster: Surface Controlled Coatable Gate Dielectric and Electrical Characteristics
Authors: Isogai Yukie , Katoh Takeyoshi , Sugitani Koichi , Hanmura Masahiro , Tada Mitsushi , Nakajima Yoshiki , Fujisaki Yoshihide , Yamamoto Toshihiro 
Published: July 2011

AbstractWe have developed Coatable Gate Dielectrics (CGDE) which can be cured at low temperature. It is applicable to not only glass but also flexible substrate with low Tg. By optimizing surface states, we achieved stable electrical characteristics of organic thin‐film transistor (OTFT) with CGDE.
P‐128: A Novel Polyimide‐Free Patterned Retarder 3D Display
Authors: Su Chun‐Wei , Shih Mei‐Sha , Lien Jan‐Tien 
Published: July 2011

AbstractWe have mentioned a new fabrication for patterned retarder 3D display is presented. The main method mixed reactive monomer and photosensitive monomer and then used mask and UV light to achieve different odd retardation and even retardation. Compared with the conventional fabrication, we eliminate the PI process, decrease TACT time, and solvent less. Therefore, we don't need PI coating and PI rubbing process and then saved a lot of equipment and energy that be belong to green 3D display. Finally, we have succeeded to achieve without PI process for patterned retarder 3D display by our new materials development.
P‐132: Influence of Polymerization Conditions on Response Time of Encapsulated Cholesteric LCs
Authors: Liao Yuan‐Chang , Lu Jhih‐Ping , Wu Kuan‐Wei , Wang Wei‐Yuan , Lin Tsung‐Hsien 
Published: July 2011

AbstractThis paper study the influence of surface properties of encapsulated CLC on response time and reflectance via polymerization induced phase separation. The cured polymer layer, which is composed of the mixture of EMA and TRI, adhere to the inside of the non‐treated glass substrate and change the surface properties to vertical alignments. Different boundary conditions caused by various UV curing intensity and cell gap lead to different electro‐optical properties for CLC display. With a proper boundary structure, the transition time from homeotropic to planar of CLC can be reduced obviously with slightly reduced reflectance.
P‐133: Enhancement of Memory Characteristics in Bistable Chiral Splay Nematic Display Mode
Authors: Bae Kwang‐Soo , Cha Uiyeong , Kim Jae‐Hoon , Park Sang Ju , Yu Chang‐Jae 
Published: July 2011

AbstractWe report an enhancement of memory characteristics in a bistable chiral splay nematic (BCSN) display mode with reactive mesogens (RMs). The polymerized RMs give rise to hindrance to relaxation in a memory mode and thus a memory retention time is significantly improved in the BCSN mode.
14.1: Invited Paper: Advanced Technologies for 3D Liquid Crystal Television
Authors: Yamada Yuichiro , Okamoto Kenji , Miyachi Koichi 
Published: July 2011

AbstractTo obtain the 3D image quality same as 2D image, a frame sequential method for 3D system has been developed. The major problem of the frame sequential method is a double image so called crosstalk. By applying advanced technologies such as UV2A Ultra Violet induced Vertical Alignment, four primary color and the sophisticated driving technologies to LC‐TV, the crosstalk when displaying the 3D image can be removed
P‐135: A High Reflectivity Fluorescent Guest‐Host Polymer Network LC Color Display
Authors: Asaoka Yasushi , Minoura Kiyoshi , Tsukio Daisuke , Deguchi Kazuhiro , Satoh Eiji , Fujiwara Sayuri , Miyata Akio , Itoh Yasuhisa 
Published: July 2011

AbstractWe have developed a novel bright reflective color display, which combines the polymer network liquid crystal (PNLC) containing dichroic fluorescent dyes and the ultra‐low‐power driving technology. The high reflectance, 60% at the maximum, was achieved by enhancement of the external light emission from the dyes due to the light‐scattering effect of PNLC.
P‐136: Optimization of Liquid‐Crystal Phased Arrays
Authors: Valyukh Sergiy , Chigrinov Vladimir 
Published: July 2011

AbstractIn this paper, liquid‐crystal phased arrays are studied. We consider two types of such devices where the needed spatial distribution of liquid crystal director is formed by 1) an inhomogeneous electric field, and 2) an inhomogeneous alignment. Physical restrictions and ways for optimizations of these devices are investigated.
P‐143: Polymer Stabilized In‐Plane Field Driven Vertical Alignment Liquid Crystal Device
Authors: Lim Se Hyun , Kim Dae Hyun , Shin Suck Jae , Woo Woo Chang , Jin Heui‐Seok , Lee Seung Hee , Kim Eun Young , Lee Seung‐Eun 
Published: July 2011

AbstractWe propose surface polymer‐stabilized in‐plane field driven vertical alignment device using a liquid crystal with positive dielectric anisotropy. The device requires long distance between electrodes to achieve higher transmittance, however, such a design results in increase in operating voltage and slow response time. Forming surface pretilt angle with utilization of polymer stabilization technique, operating voltage is reduced and response time is greatly improved even with long electrode distance.
P‐144: Electrooptic Response of FLC: Effect of Alignment Materials
Authors: Guo Qi , Fan Fan , Du Tao , Chigrinov Vladimir 
Published: July 2011

AbstractIn this paper, parameters of ferroelectric liquid crystals (FLC) with different alignment materials, which include Nylon 6 with rubbing method, photoaligned azo‐dye layer SD1 and new photosensitive material from DIC, were investigated. The effects of alignment layer on contrast ratio, response time and switching of FLC are provided. Asymmetric boundary conditions, with only one of ITO surfaces is covered with the aligning layer while the other one is not, have been used for providing both high contrast ratio and defect free orientation. It is indicated that SD1 is suitable for FLC alignment, with which switching time of 65μs and contrast of 500:1 are obtained at room temperature, and switching time decreases with higher temperature.
P‐213L: Late‐News Poster: Optimization of High‐Aperture‐Ratio Fringe‐Field‐Switching Pressure‐Resistance Characteristic for Touch‐Screen Display
Authors: Lim Junhwan , Zhang Zunrui , Yang Falu , Zuo Xiongcan , Yang Ruizhi , Ko Youngyik , Jung Heechul 
Published: July 2011

AbstractCurrently, smart phone and table pc like I phone and I pad with touch pad are main trend in the mobile market. Using touch pad, display image is distorted by external pressure with touch pen and fingers. Because such defects, improvement of pressure resistant characteristic by external pressure (Trace mura) is became more important factor. To solve the problem, we studied pressure resistant characteristic by rubbing uniformity, alignment anchoring force, rotational viscosity of liquid crystal and pixel electrode length of domain structure. Through these experiment results, we have found the design of improving pressure resistant characteristic (Trace mura). Low rotational viscosity of liquid crystal shows stronger pressure resistant characteristic than high rotational viscosity of liquid crystal and as the length of pixel electrode is shorter, pressure resistant characteristic (Trace mura) is good. It is much advantageous for touch pad display field.
P‐149: A Reflective Polarizer‐Free Display Using Dye‐Doped Polymer‐Stabilized Blue Phase Liquid Crystals
Authors: Chen Hung‐Shan , Chiang Tsung‐Han , Wu Chun‐Hung , Chen Hung‐Yuan , Lin Yi‐Hsin , Hsu Hsu‐Kuan 
Published: July 2011

AbstractWe demonstrate a reflective polarizer‐free display using dye‐doped polymer‐stabilized blue phase liquid crystals (DDPSBP‐LC). The mechanism is mainly the combination of electrically tunable light absorption and Bragg reflection. At the voltage‐off state, the dye molecules and liquid crystals form the structure of the double twist cylinders. As a result, the DDPSBP‐LC is in dark state due to the combination of Bragg reflection and light absorption. At the voltage‐on state, the blue phase structure is unwound locally. The DDPSBP‐LC is then in bright state because of the small light absorption only. The response time of DDPSBP‐LC is fast, the viewing angle is wide, and the optical efficiency is high. The applications of such a switch are shutter glass of 3D displays, and electronic papers.
P‐150: Tunable Liquid Crystal Lens by Spatially Controlling of Pretilt Angle
Authors: Fan Fan , Tseng Man‐Chun , Murauski Anatoli A. , Kwok Hoi‐Sing , Chigrinov Vladimir G. 
Published: July 2011

AbstractStacked alignment layer (SAL) with both vertical and horizontal alignment materials are used to control the liquid crystal (LC) pretilt angle. When one alignment material in SAL is photoalignable, the pretilt angle can be controlled by UV exposure dosage. A tunable LC lens is achieved by exposing the SAL under UV laser.
P‐151: UV‐Modified Polyimide Alignment Layers for Liquid Crystal Fresnel Lens
Authors: Hwang Shug‐June , Chen Tai‐An , Lin Kuo‐Ren , Jeng Shie‐Chang 
Published: July 2011

AbstractA switchable liquid crystal (LC) Fresnel lens was demonstrated by the UV‐modified alignment layer for producing an alternation of hybrid‐aligned and vertically‐aligned LC zones. A polarization‐independent Fresnel lens can be obtained by circular rubbing, and a high diffraction efficiency of ∼23% is reached with a low driving voltage of 1.2 V.
P‐158: Fast Switching of Narrow‐gap TN‐LCDs Embedded with New Nanoparticles and Their Application to FSC‐LCDs
Authors: Kundu Brindaban , Shiraishi Yukihide , Sawai Hiroya , Takeuchi Kiyofumi , Takatsu Haruyoshi , Toshima Naoki , Mizumoto Takeshi , Kitamura Michio , Kobayashi Shunsuke 
Published: July 2011

AbstractWe report the reduction of both response times and threshold voltage by 20–50% and 30% respectively in NTN‐LCD modules that brings τON = 3.2ms at V10% and 0.5ms at V0% and τOFF = 3.4ms at 25°C and τON = 6.2ms and 0.9ms at 0°C. These short figures of response times well satisfy the requirement for FSC‐LCD operated at 216Hz with our LCD modules and our FSC‐LCDs are featured by 2–3 times higher luminance efficiency than those with color filters yielding 2nits/W/m2.
P‐160: Improvement of the Contrast Ratio in Twisted Nematic LCD
Authors: Lee Do‐Young , Kim Hee‐Kyung , Lee Man‐Kyun , Heo Sang‐Hoon , Song Jang‐Kun 
Published: July 2011

AbstractMainly due to the twisted directors near surface in dark state, the decreased contrast ratio of TN mode has been observed. Here we describe the investigation of the contrast ratio of twist nematic liquid crystal display (TN‐LCD) with an optical compensation film, WV‐film, by using computational simulation and suggest new method to improve the contrast ratio significantly. Our results indicated that by optimizing the pitch of liquid crystal with chiral dopant, the contrast ratio was improved about 20%, but the reverse twisted region of the liquid crystal occurs. By adopting twisted WV‐Film, the contrast ratio was increased about 19% without the reverse twisted region.
P‐162: Distinguished Student Poster Paper: Sunlight Readable Transmissive LCDs
Authors: Cheng Hui‐Chuan , Wu Shin‐Tson 
Published: July 2011

AbstractWe propose a novel sunlight readable transmissive LCD embedded with a transflective film. Such a transflective film has high transmittance to the backlight and high reflectance to the ambient light. This new display is particularly suitable for mobile displays under strong ambient light condition.
P‐163: Three‐terminal Dye‐doped LC Device Switchable between Reflective and Transmissive Modes
Authors: Kim Ki‐Han , Jin Hye‐Jung , Park Byung Wok , Song Dong Han , Kim Jae Chang , Yoon Tae‐Hoon 
Published: July 2011

AbstractWe propose a three‐terminal dye‐doped LC device that is switchable between reflective and transmissive modes without image inversion. An additional LC panel or optical components are not needed for the proposed device, differently from conventional mode‐switchable LCDs. Compared to the previous dual panel structure consisting of two vertically‐aligned LC layers, an enhancement of the transmittance by more than 4% was obtained because there is no increase in the light absorption by an additional LC panel.
P‐168: Room Temperature Deposition of Transparent Conducting Anode for Organic Light‐emitting Diodes
Authors: Ko Yoon Duk , Kim Joo Yeob , Joung Hong Chan , Son Dong Jin , Jung Dong Geun , Kim Young Sung 
Published: July 2011

AbstractPoly‐crystalline Indium tin oxide (ITO) film, which shows high optical transmittance and low resistivity, is the essential material to realize OLED device as a transparent anodic electrode. However, this anode material has some problems for flexible displays or OLEDs due to the high manufacturing temperature and imperfect work function alignment in each layer of device. This study examined the anode material properties of ITO, GZO, and IZTO thin films deposited at room temperature using pulsed DC magnetron sputtering along with the device performance of organic emitting diodes (OLEDs). In conclusion, the IZTO film is an alternative material for conventional ITO anodes used in OLEDs and flexible displays.
P‐171: A Novel Sensor for Simultaneously Monitoring the Composition and Thickness of Co‐deposited Films During Co‐deposition
Authors: Suemori Kouji , Hoshino Satoshi , Takada Noriyuki , Kamata Toshihide , Ibaraki Nobuki 
Published: July 2011

AbstractOrganic light emitting diodes are extremely sensitive to dopant concentrations in emitting layers. We developed a sensor that could simultaneously monitor the composition and thickness of co‐deposited films. This sensor enables more precise control of the composition of the emitting layers compared to quartz crystal oscillator thickness monitors.
P‐174: The Electrical Properties of Transparent Emotional OLED Lighting Based on Organic Environment Sensor
Authors: Jeong Jin Wook , Park Young Wook , Choi Jin Hwan , Park Tae Hyen , Choi Hyun Ju , Song Eun Ho , Ju Byeong Kwon , Lee Jeong Ik , Chu Hye Young 
Published: July 2011

AbstractThis paper reports on a study of the electrical properties of integrated organic light emitting diode (OLED) with an organic photo sensor (OPS) based on poly‐3‐hexylthiophene (P3HT) and [6,6]‐phenyl‐C61 butyric acid methyl ester (PCBM) for emotional lighting applications. The emission characteristics exhibit the changes in the current and luminance of an OLED as a function of time when the OPS is exposed to different illumination levels from full dark to 500 m W/cm2 using a xenon lamp.
P‐175: Profile of Heterostructured Host for Phosphorescent OLED and its Application to the White Lighting Devices with Low Driving Voltage
Authors: Hyun Woo Jin , Park O. Ok , Chin Byung Doo 
Published: July 2011

AbstractThe electrophosphorescent OLED with heterostructured (mixed) light emission layer was characterized. Base on the best combination profile of mixed emitter obtained, we have fabricated the white OLEDs, where the selective cross‐patterning technique was employed for the spatial variation of emitting layer thickness. The corresponding lower driving voltage and stable color characteristics were investigated.
P‐178: Semi‐transparent Tandem Device Comprising Organic Light‐emitting Diodes and Organic Solar Cell
Authors: Liu Shun‐Wei , Lee Chih‐Chien , Huang Jia‐Chin , Lin Chi‐Feng , Chen Chin‐Ti , Lee Jiun‐Haw 
Published: July 2011

AbstractSemitransparent stacked device consisting of an OLED and an OSC was demonstrated connected by a thin Ag as the connecting unit, which was modified by self‐assembled monolayer (SAM). Efficiency of OSC‐mode from the bottom and top illumination is 0.36% and 0.27%, respectively, while current efficiency of OLED‐mode from the bottom‐ and top‐emission is 3.0 and 1.2 cd/A.
P‐179: Efficiency Enhancement of PLED by Using TiOx Electron Transport Layer with Prism Sheet Attachment
Authors: Ho Yu‐Hsuan , Liang Hsun , Lai Hiao‐Han , Chuang Chia‐Wen , Chu Chih‐Wei , Wei Pei‐Kuen 
Published: July 2011

AbstractThe internal and external efficiency were found can be simultaneously improved by insertion a high refractive index material, titanium oxide (TiOx), to the emission layer and a prism sheet attached to the substrate. The TiOx layer resulted in a better electron‐hole balance and thus increased the internal efficiency. However, it also led a wider angular FWHM of emission profile with more photons trapped in the substrate. By using the prism sheet, those trapped light was efficiently coupled to the air. The extraction efficiency enhancement at normal direction was increased from 33.1% to 54.4% without any device electricity degeneration. The overall current efficiency was improved 86% when 20‐nm‐thick TiOx film was used.
P‐182: Lifetime Enhancement by Fabrication of a Doped Graded‐emission Layer in Organic Light‐emitting Diodes
Authors: Chuang Chun‐Shiung , Cheng Chia‐Liang , Chen Hsi‐an , Chen Chin H. 
Published: July 2011

AbstractWe report an improved doped graded‐emission layered structure (IG‐EML) which can be readily fabricated by a conventional research thermal‐evaporation coater and enhance device lifetime. This is demonstrated by doping fluorescent yellow emitter EY53 in the host matrix formed by programmed continuous mixing of a typical hole transporting material (e.g. NPB) and an electron transporting material (e.g. BAlq). Compared with the conventional bi‐layer (B‐EML), mixed‐emission (M‐EML) and a typical graded‐emission (G‐EML) device, the novel IG‐EML doped OLEDs offer significant advantage in operational device stability T50 (more than 4.8 times than that of the B‐EML structure) without compromising its current efficiency.
P‐216L: Late‐News Poster: Optical Properties of WO3/Ag/WO3 Multilayer as Transparent Electrode in Top Emitting OLEDs
Authors: Hong Kihyon , Kim Kisoo , Kim Sungjun , Lee Illhwan , Koo Bon Hyeong , Lee Jong‐Lam 
Published: July 2011

AbstractWe demonstrate inverted top‐emitting organic light emitting diodes (ITOLEDs) using a WO3/Ag/WO3 multilayer as a transparent top electrode formed by thermal evaporation. Due to the multiple reflections and interferences, the Ag layer sandwiched between WO3 with a high value of n (>2.0) can show improved transmittance property of ∼ 90 %.
P‐186: Compensated MTN Mode Field Sequential Microdisplays for Pico Projector Applications
Authors: Li Yuet Wing , Chiang Kuan Hsu Fan , Tsai Chia Yeh , Wu Chieng Liang , Wang Chieng Tang , Chen Wei‐Hsieh , Tsai Hsien‐Chang 
Published: July 2011

AbstractWe performed a complete study of optical properties of MTN mode LCOS with in‐plane retarders. A new fast response and compensated MTN configuration is proposed. The on/off axis contrast of the new compensated LCOS panel can be dramatically improved from 800:1 to over 1500:1. When such fast response (<170 s) compensated MTN mode equip with analog driving LCOS backplane, 95% NTSC is recorded even under 100% LED turn on duty.
P‐187: An Electrically Tunable Focusing LCOS Pico Projector Using a Liquid‐Crystal Lens
Authors: Lin Hung‐Chun , Chen Ming‐Syuan , Lin Yi‐Hsin 
Published: July 2011

AbstractAn electrically tunable LCOS pico projector using a liquid crystal (LC) lens as an active optical element is demonstrated. The LC lens consists of two built‐in sub‐lenses: one is an electrically tunable focusing lens controlled by a LC layer and the other is a fixed focused polymeric lens. The tunable ranges of the electrically tunable LCOS pico projectors are 200 cm to ∼7 cm. The driving voltage of the electrically tunable focusing LCOS pico projector is less than 35 Vrms. The response times is 1.1 sec. The image performance of the electrically tunable focusing LCOS pico projector is also demonstrated.
P‐188: Field Sequential Type 3D Pico‐Projector Phone Based on 1GHz Mobile Application Processor and nHD DMD Chipset
Authors: Park Byeonghoon , Cho Jaeyong , Kim Sungsoon , Kim Hyowon , Kwon Jinwook , Sung Kisuk , Lee Homin , Lee Jungkee , Jang Donghoon 
Published: July 2011

AbstractIn this paper, we present the first 3D pico‐projector phone platform which adopted a field sequential type nHD DLP‐based projector module and the mobile application processor S5PC111. With 1.5ms of 3D glass blank time and maximally 12 lumen picoprojector engine, we obtained about 30% of optical efficiency at 1W LED power consumption.
P‐193: Optool™ DAC‐HP: An Anti‐fingerprint Coating Material for Touch Panel Screens
Authors: Milam Ken , Hendershot Ron 
Published: July 2011

AbstractDaikin's Optool™ DAC‐HP is a surface antifouling agent based on proprietary fluorochemical technology which is part of an UV‐cured acrylic hard‐coat agent. It prevents fingerprints on processed surfaces, repels water and oils, creates a low friction surface, has superior durability and does not degrade the optical properties of the material.