bluuebunny/crossref_metadata_2025_split huggingface dataset:
P‐47: Current Mode A New Way to Power, Control, and Dim CCFL and EEFL Backlights
Authors: Ball Newton E. , Barker‐Ball Sarah 
Published: August 2007

AbstractGraphical load‐line analysis, adapted from Esaki diode theory, is rescaled for CCFL and shows that simple Current‐Mode control utilizing a closely coupled transformer, makes “strike” obsolete. Sharply higher lamp current efficacy is presented graphically. It is postulated that the large differences in current efficacy are caused by deficiencies in the resonant system, and possibilities are listed.
P‐49: The Driving Method with Different RGB Driving Voltages for Bistable Displays
Authors: Liou Chang‐Ho , Hsiao Chih‐Wen , Chang Wei‐Jen , Chen Ming‐Daw 
Published: August 2007

AbstractA driving method was developed for the flexible bistable displays application. In this paper, we use two methods to improve the drawback of bistable cholesteric liquid‐crystals displays (CHLCD). One is a scanning procedure was to increase the refresh time. And the other is the PWM driving method was adopted to increase the gray levels of Ch‐LCD.
P‐51: Novel Positive Type Photosensitive Insulating Materials by Organic/ Inorganic Hybrid Technologies as a Passivation Layer on TFT LCDs
Authors: Kusaka Yasunari , Nakamura Shigeru , Azuma Kenichi , Sasaki Taku , Unate Takao , Nakatani Yasuhiro , Nakasuga Akira , Matsukawa Kimihiro , Murakami Shuichi , Ohkura Kensaku , Kikkawa Takamaro 
Published: August 2007

AbstractIn this paper, we describe a novel positive type photosensitive silica‐based spin on glass (SOG) material. This material is made by organic/inorganic hybrid technologies can provide good performances of high insulating resistance, transparency, and heat resistance. This material could be used as a passivation layer on TFT LCDs, and provide a novel vacuum‐less process.
P‐55: Cell Filling of Flexible Liquid Crystal Displays Using One Line Filling and Tilted Roller Pressing
Authors: Wu Wen‐Tuan , Kuo Yuo‐Cheng , Hsu Ching‐Ming , Li Chang‐Chou , Ke Chih‐Yu , Hsiao Chung‐Hsin 
Published: August 2007

AbstractWe have developed an approach for filling liquid crystal into flexible cells in atmosphere. A roller pressing unit was employed to laminate two PET films with patterned polymer spacer, and from which a bubble free liquid crystal cell has been achieved reproducibly. This approach can be integrated into a roll‐to‐roll system.
P‐56: Aligning Liquid Crystals Using Self‐Assembled Monolayers
Authors: Murauski Anatoli , Li Xihua , Chigrinov Vladimir , Kobrin Boris , Chinn Jeff 
Published: August 2007

AbstractConventional method of liquid crystal (LC) alignment — rubbing of polyimide film with a cloth — changes the topography of the layer and induces anisotropic orientation of polymer chains along the rubbing direction. Unfortunately, it also generates a lot of debris. Moreover, this method is incompatible with localized control over LC alignment. Recently, anchoring of LC was demonstrated using low energy surfaces from self‐assembled monolayers (SAMs) deposited from a liquid phase on gold and silica. We applied Molecular Vapor Deposition (MVD™) technology for anchoring of MLC 6610 liquid crystal to ITO surface. Advantage of vapor‐phase deposition in superior surface quality has been reported elsewhere. Self‐assembled monolayers of perfluorinated chlorosilanes and aminosilanes were used to build LC cell with symmetrical boundary condition and cell gap of 10 um. Anchoring energy of 4.2×10−4 J/m2 was obtained using capacity method for both types of SAMs. MLC 6610 showed 2.45 V threshold voltage. We observed a uniform vertical alignment of the cell without defects.
P‐57: Color Shift Evaluation in Motion Image
Authors: Lai Yueh‐Yi , Chang Kai‐Chieh , Wen Chao‐Hua , Guan Shing‐Sheng , Tsai Chenh‐Min 
Published: August 2007

AbstractMotion color images in LCDs become more and more important topic. In this paper, a color shift evaluation method is examined to judge the quality of captured motion images via a pursuit camera system. Furthermore, fifteen expectative color mixtures of color pairs were compared with results of subjective tests. Experiment results revealed that there exists high correlation between measuring system and the subjective test, and the proposed method was enough to be a quality index to present color shift characteristics for LCD displays.
P‐60: Novel Display Image Quality Analysis Based on Human Visual Perception
Authors: Lee Jongseo , Souk Jun H. , Miseli Joe 
Published: August 2007

AbstractPicture quality analysis technologies considering on human visual perception (HVP) were introduced. Dynamic contrast analysis method in moving contents, color aberration analysis method, ghost image assessment method, and outdoor picture quality assessment method were researched and reviewed. The results from those analysis methods was correlated with human visual perception.
P‐65: Plasma Parameters of Gas Discharge in Cold Cathode Fluorescent Lamps and External Electrode Fluorescent Lamps
Authors: Lee Min‐Kyu , Yoo Dong‐Gun , Kim Jung‐Hyun , Kim Sang‐Jin , Jeong Jong‐Mun , Kang Mi‐Jo , Shin Myeong‐Ju , Koo Je‐Huan , Hong Byoung‐Hee , Choi Eun‐Ha , Cho Guangsup , Jeong Hee‐Suk , Kim Jin‐Sheon , Cho Mee‐Ryoung , Hwang Myung‐Keun , Yang Seong‐Yong 
Published: August 2007

AbstractFrom the light propagation observed along the tube of CCFLs and EEFLs, the electron temperature and the plasma density are estimated as kTe∼2 eV and ne∼1016 m−3. This might be a new diagnostic technology to measure the plasma parameters in the fine tube of gas discharge.
P‐66: Analysis and Reduction of Moiré in Two‐Layered 3D Display
Authors: Oku Kentaro , Tomizuka Yoshiteru , Tanaka Yoshinori 
Published: August 2007

AbstractSimulator for moiré in two‐layered 3D displays has been developed and moiré reduction has been investigated. Attachment of lens‐array to a front surface of a rear LC panel is one of good solutions for moiré reduction, while suppressing the deterioration of contrast and brightness of rear panel picture.
P‐73: A Novel LCD Backlight Unit using a Light‐guide Plate with High Fill‐factor Microlens Array and a Conical Microlens Array Sheet
Authors: Lee Joo‐Hyung , Yoon Jun‐Bo , Choi Joon‐Yong , Bae Sang‐Min 
Published: August 2007

AbstractIn this paper, we have proposed a novel LCD backlight unit (BLU) composed of a light‐guide plate (LGP) mounting high fill‐factor microlens array and an optical sheet of conical microlens array with a slanted angle of 54.5°. The proposed BLU shows 13.6% improvement in the total luminance compared with the conventional BLU and the viewing angle of 108° (−42° ∼ 66°). We also have fabricated Ni‐stamper with the microlens array pattern for injection molding, one of the cost‐efficient methods for mass production.
P‐80: External Electrode Fluorescent Lamps and Backlight Units for the Large Area of 32″∼42″ LCD‐TVs
Authors: Jin Dong‐Jun , Bong Jae‐Hwan , Yoo Dong‐Geun , Kim Sang‐Jin , Kim Ga‐Eul , Jeong Jong‐Mun , Lee Min‐Kyu , Shin Sang‐Cho , Lee Mi‐Ran , Koo Je‐Huan , Hong Byoung‐Hee , Choi Eun‐Ha , Cho Guangsup , Ha Dal‐Young , Ahn Jong‐Ki , Soh Hoe‐sup , Ahn Byung‐Chul , Gu Seung‐Man 
Published: August 2007

AbstractThe commercialized EEFL‐BLUs of 32″, 37″, and 42″ LCD‐TVs are reported with respect to the basic characteristics of luminance and efficiency. The capacitive and resistive reactance is also presented to design the inverter for lamps and BLUs.
P‐81: Reduced‐Aberration Tunable‐Focus Liquid Crystal Lenses for 3D Displays
Authors: Hong Qi , Wu Thomas X. , Lu Ruibo , Wu Shin‐Tson 
Published: August 2007

AbstractA three‐dimensional display with eye accommodation is proposed. According to this design, by modifying the diopter of the display pixels using tunable‐focus liquid crystal micro‐lens array, eye accommodation information is provided. Potential applications for virtual reality and television are emphasized.
P‐201L: Late‐News Poster: Comparative Analysis on Thermal Properties of Y3Al5O12:Ce3+ and (Ba, Sr)2SiO4:Eu2+ Yellow Phosphors for White LED
Authors: Choi Nam Sik , Park Boo Won , Hwang Dae Kyun , Lee Sang Nam , Kim Jong Su 
Published: August 2007

AbstractThe spectral variation of Y3Al5O12:Ce3+ (YAG) with temperature is smaller than that of its alternative (Ba, Sr) 2SiO4:Eu2 (BOS). The quenching temperature of YAG is higher than that of BOS. On the other hand, the luminance of YAG is seriously thermal‐degraded in comparison with BOS.
P‐203L: Late‐News Poster: Thick Electroluminescent Device using ZnGa2O4:Mn2+ Ceramic Phosphor Film
Authors: Park Boo Won , Choi Nam Sik , Lee Sung Hoo , Son Se Mo , Kim Jong Su 
Published: August 2007

AbstractThick ZnGa2O4:Mn2+ Ceramic phosphor film is applied to A.C. inorganic electroluminescent (EL) device. The ceramic‐film phosphor with 200 μm thick is sandwiched between transparent ITO glasses. The EL device under A.C. power of 200 V and 60 Hz shows the green emission spectrum from Mn2+ ions peaking at 508 nm.
P‐82: Synthesis and Characterization of (R0.96Eu0.02Dy0.02)2MgSi2O7 (R=Ca, Sr) Phosphors
Authors: Choi Hwa‐Kyung , Kim Jin‐Ho 
Published: August 2007

AbstractRare earth ions doped alkaline earth silicate phosphors were prepared by the conventional ceramic processing route under various conditions. The Rietveld refinement of the crystal structure of Ca2MgSi2O7 and Sr2MgSi2O7 compositions indicated that a single phase of akermanite was well synthesized. (R0.96Eu0.02Dy0.02)2MgSi2O7 (R=Ca, Sr) phosphors showed fairly good optical properties under the processing conditions of non‐additive flux, 1000 °C calcination temperature, and 2mol% activators. (Sr0.96Eu0.02Dy0.02)2MgSi2O7 and (Ca0.96Eu0.02Dy0.02)2MgSi2O7 phosphors emitted 465 nm and 530 nm lights, respectively, by 325 nm exciting sources. Increase of Ca/Sr ratio of (Ca, Sr)‐akermanite phosphor caused the shift of optic‐center from blue to green region throughout the composition range of isostructural Sr‐ and Ca‐akermanites. And median diameters of powdered phosphors were about 3–4 μm.
P‐84: Experimental and Theoretical Luminous Efficacies of Phosphors used for Producing White Light from Blue‐emitting LEDs
Authors: Withnall Robert , Silver Jack , Fern George R. , Lipman Anthony L. 
Published: August 2007

AbstractPhosphors that absorb blue light and emit in the yellow, green and red have been synthesized, and their experimental and theoretical luminous efficacies are compared. These comparisons show that the formulation and preparation method of the phosphor are critical for producing energy efficient white LEDs for display and lighting applications.
P‐85: The Emission Mechanism of BAM:Eu2+ Phosphor Under VUV Excitation
Authors: Tanno Hiroaki , Zhang Shuxiu , Uchida Giichiro , Shinoda Tsutae , Kajiyama Hiroshi 
Published: August 2007

AbstractThe photoluminescence and thermoluminescence characteristics of BaMgAl10O17 (BAM) and SrMgAl10O17 (SAM) are studied under VUV (146 nm) excitation. The host emission from BAM is observed at 300 K whereas no signal is obtained from SAM. This result suggests that the host emission from BAM relates to the defects in BAM lattice. It is estimated that the radiative energy originating in BAM host contributes to 20 % of total Eu2+ emitting under 146 nm excitation.
P‐87: Flux Effects on BaAl2S4:Eu, F Blue‐phosphor
Authors: Guo Runhong , Miura Noboru , Matsumoto Hironaga , Nakano Ryotaro 
Published: August 2007

AbstractBlue‐emitting BaAl2S4:Eu phosphor thin‐films was achieved under low temperature annealing. Phosphor thin‐films are deposited with using EuF3 as a Eu‐source. Crystal structure of BaAl2S4:Eu thin films deposited with fluorine have orthorhombic structure. The relationship between the optical properties and crystal structure is also studied.
P‐93: Analysis of Optical Emission Spectra from AC‐PDPs for Various Xe Content
Authors: Uchida Giichiro , Kajiyama Hiroshi , Shinoda Tsutae 
Published: August 2007

AbstractHere is presented the time‐resolved measurements on optical emission spectra from AC‐PDP with various Xe contents. Experiments show that the relative emission intensity (nXe/nNe)INe(585nm)/IXe(823nm), which is induced from Ne and Xe atom, drastically decreases with discharge time, where the relative emission intensity is normalized by neutral gas density (nNe and nXe). There is considerable effect of Xe contents on (nXe/nNe)INe(585nm)/IXe(823nm) especially in initial stage of discharge. The time‐resolved measurement of (nXe/nNe)INe(585nm)/IXe(828nm) is useful to estimate the dynamic change of electron energy in a PDP micro‐discharge.
P‐96: Analysis of Discharge Characteristics on 50‐in. Full HD, 50‐in. HD, and 42‐in. HD PDP Cells using Vt Close‐Curve
Authors: Park Ki‐Hyung , Park Hyung Dal , Lim Jae‐Kwang , Kim Jae Young , Tae Heung‐Sik , Ahn Ho Young , Lee Kwang‐Sik 
Published: August 2007

AbstractTo investigate the discharge characteristics such as a firing voltage and wall voltage condition by the conventional driving waveform in the ultra fine AC‐PDP cells, the Vt close‐curves are measured. Using the shape and shift of the Vt close curves measured from the various PDP cell sizes such as 50‐in. full HD, 50‐in. HD, and 42‐in. HD grades, the discharge characteristics are analyzed in detail.
P‐97: Analysis of Wall‐Voltage Variation During Address Period Using V(t) Closed Curves
Authors: Choi Byung‐Tae , Park Hyung Dal , Lim Jae Kwang , Tae Heung‐Sik , Hur Min , Park Soo‐Ho , Yoo Minsun , Lee Kwang‐Sik 
Published: August 2007

AbstractTo explain a non‐uniformity of the address discharge during an address period, the wall voltage variation during an address period was investigated as a function of the number of the applied address pulse by the Vt closed curve. It was observed that the wall voltage between the scan and address electrodes was decreased with an increase in the number of the applied address pulse. It was also observed that the wall voltage variation during an address period strongly depends on the voltage difference between the Y and A electrodes.
P‐98: The Effects of Si Doped MgO Protecting Layer in AC PDP
Authors: Lee Don‐Kyu , Yoon Cho‐Rom , Heo Jeong‐Eun , Lee Hae June , Lee Ho‐Jun , Park Chung‐Hoo 
Published: August 2007

AbstractIn order to improve the material characteristics of the protective layer for ac‐PDPs, a small amount of Si was added to the MgO films. Both the surface characteristics of the protecting layer and the electro‐optical properties were investigated, such as discharge voltages, luminance, luminous efficacy, addressing jitter, and image sticking.
P‐104: A New Cathode Treatment Method in CNT‐FED Manufacturing
Authors: Mo C. N. , Chiang M. C. , Liu M. , Hsu C. Y. 
Published: August 2007

AbstractThe sand‐paper impression method was investigated in field emission display. Using surface morphology of printed CNTs and physical surface treatments, a 25 mm × 25 mm CNT‐Device with a space of less than 400 μm was fabricated to improve the CNT emission characters. The experimental results illustrated that CNT emission could be obtained quite easily and at low cost for CTN‐FED manufacturing.
P‐107: The Fastest Response TN‐Type TFT LCD of the World Likes OCB Level
Authors: Chao Andy , Huang K. T. , Tsai C. W. , Hung Y. W. , Cheng H. F. , Yeh William , Yu C. H. , Wu H. H. 
Published: August 2007

AbstractNowadays, RT and MPRT become a very important factor to judge image quality. We have developed fastest response time and motion picture response time TFT LCD of the world for image quality request. Our panel can reach RT 2ms and gray to gray RT avg. below 2ms. We also combine the fastest cell and advanced over‐drive system to make MPRT be 4ms.
P‐110: Electroclinic Effect in the Chiral Smectic C (SmC*) Phase
Authors: Jang Joo‐Nyung , Davey Anthony B. , Crossland William A. 
Published: August 2007

AbstractWe have proposed that the electroclinic effect can explain the mechanism of layer rotation in SmC*. In this work, we investigate the soft mode in SmC* phase with three different experiments.
P‐111: Novel Electrowetting Displays
Authors: Blankenbach Karlheinz , Schmoll Andreas , Bitman Andriy , Bartels Frank , Jerosch Dieter 
Published: August 2007

AbstractNovel Displays have been developed using the effect of moving a droplet by electrowetting. This approach enables bi‐stable and high reflective monochrome and color displays which could also be made on plastic substrates. Prototypes show promising performance in terms of contrast ratio, gray scale and color.
P‐112: Low Driving Voltage with Clean Aligned Ferroelectric Liquid Crystal Devices
Authors: Lin Chi‐Wen , Li Kun‐Zhan , Yang Chin‐Wei , Chen Huang‐Ming Philip 
Published: August 2007

AbstractLow driving voltage FLC material, R3206 with Vsat. at 3.5V (AZ Electronic Materials), and its mixtures were under evaluation for potential TFT display application. Poor alignment issue was overcome by the diluted pitch mixtures and asymmetric hybrid alignment cells. In the series of diluted pitch mixtures, the contrast and alignment are better than pure compound in pre‐made cells (1.8±0.1μm, from EHC). In particular, the 70% R3206 mixture showed the best result with low driving voltage below 5V and fast response time (T on +T off) under 1.1 ms. The hybrid alignment cell was successfully suppressed horizontal chevron defects and achieved the best contrast ratio of 750. These results provide promising FLC materials with low driving voltage, well aligned, and fast switching for TFT‐LCD application.
P‐113: Ferroelectric LC Aligned on SiO2 Thin Films Using the Ion Beam Deposition and its Applications
Authors: Li Xihua , Murauski Anatoli , Chigrinov Vladimir , Khokhlov A. , Khokhlov E. 
Published: August 2007

AbstractThe uniform alignment of Ferroelectric LCs (FLC) on inorganic thin film surfaces can be obtained using oblique ion beam sputtering deposition on substrates. Large deposition angle from 60° to 80 ° can be used for thin SiO2 alignment layer, which thickness can vary from 5nm to 40 nm. Two types of uniform alignment of “chevron” (before electrical treatment) and “quazi‐bookshelf” (after electrical treatment) were studied. The applications using this unique technology in low power consumption displays, fast switching color displays, future LCD‐TVs and fiber optics are discussed. High quality alignment on large size substrates is also easily achieved because of the linear design of the ion beam sputtering source, which is a big challenge for FLC on SiOx layers before.
P‐119: The Stabilized Bistable LC Mode for Flexible Display from Multi‐rubbing on the PILC Structure
Authors: Bae Ji‐Hong , Jang Se‐Jin , Choi Yoonseuk , Jhun Chul Gyu , Kim Jae Chang , Kim Jae‐Hoon 
Published: August 2007

AbstractWe propose the stabilization technique for the memory state of bistable liquid crystal (LC) mode in the pixel‐isolated LC (PILC) structure. To obtain the enhanced retention time of memory state, we apply the multi‐rubbing method to create the partial 90° twisted domains in each sub‐pixel as the seeds of stabilizing the π‐twist states. The PILC structure provides the uniform and stable cell gap against various external deformations. The suggested structure can be very useful for portable flexible display applications with high quality device performance such as low power consumptions and good mechanical reliability.
P‐122: Fabrication of Single Substrate Flexible LCD by Laminating Functional Polymer Cover Film
Authors: Bae Kwang‐Soo , Kim Hak‐Rin , Kim Young Min , Kim Jae‐Hoon 
Published: August 2007

AbstractWe proposed a lamination process of a polymer film with a photo‐curable polymer for fabricating flexible liquid crystal (LC) displays on single substrate. In our structure, a cover film layer was tightly attached to the polymer wall structure of a bottom plastic substrate after lamination, and LCs were uniformly aligned by grooves formed on the laminated cover film.
P‐124: Analysis of Image Sticking on Real Cell — Analysis of the Cause Material of Boundary Image Sticking
Authors: Kamoto Ritsu 
Published: August 2007

AbstractImage sticking phenomena is one of the most important issues on LCD especially TVs, etc. It is well known image sticking is one of the display failure caused by the residual DC voltage. Analysis of the cause material of display failure on LCD, especially temporary defect, image sticking on LCD is very difficult, not reported about the cause material on real cells. Micro analysis methods such as infrared micro‐spectroscopy (μ ‐IR) and micro‐sampling mass spectrometry (μ ‐MS), provide deep insights of display defect, image sticking phenomena on LCD. In this paper, it is tried to analyze the cause material of the boundary image sticking on real cell dividing cross sectional direction, bulk liquid crystal (LC) layer, vicinity LC layer and interface LC/PI film layer, and investigated the mechanism of image sticking. It is supposed that aromatic carboxylic acid is condensed at boundary interface between liquid crystal and polyimide alignment film of CF side inducing residual DC voltage.
P‐205L: Late‐News Poster: The Study of the Correlation between Surface Anchoring Energy and Activation Energy on Patterned Vertical Alignment (PVA) Mode
Authors: You Jaeyong , Jung Jiyoung , Choi Nakcho , Rhie Kungwon , Shin Sungtae 
Published: August 2007

AbstractThe adsorption and desorption of the ions are closely related to the image sticking of liquid crystal (LC) cells. We made an effort to measure the fixed quantity of ion concentration by measuring the residual DC voltage in LC cell and the surface anchoring energy in PVA cell. To understand the mechanism of image sticking, we studied these adsorption and desorption activation energy and found that the desorption activation energy increases as the surface anchoring energy does, and this relationship is rather universal. This observation led us to a conclusion that smaller anchoring energy is required to reduce the image sticking of LC cells.
P‐128: Orientation of a Reactive Mesogen on Photosensitive Surface
Authors: Kurioz Yuriy , Buluy Oleksandr , Reznikov Yuriy , Gerus Igor , Harding Richard 
Published: August 2007

AbstractReactive mesogens (RMs) are polymerisable liquid crystals that can be formed through the process of in‐Situ photopolymerisation into thin birefringent films. These films have found applications as optical films (retarders) in the flat panel display industry. Application of the birefringent films requires homogeneous orientation of the optical axis over the film's surface. We report high quality fast photoalignment of reactive mesogens on surfaces of cellulose‐cinnamate polymers. Unique photosensitivity of cellulose‐cinnamates and high quality photo‐orientation of reactive mesogenes on these polymers allow cellulose‐cinnamates to be considered as promising materials for producing thin birefringent polymer films by roll‐to‐roll technology.
P‐137: Photoaligned Transflective Liquid Crystal Display with Single Cell Gap using OCB and Low Twist Nematic Modes
Authors: Xu Peizhi , Mak Hin Yu , Muravsky Alexander , Li Xihua , Chigrinov Vladimir , Kwok Hoi Sing 
Published: August 2007

AbstractTransflective liquid crystal display (LCD) with single cell gap consisting optically compensated bend (OCB) and low twist nematic modes has been studied. Since no double cell gap structure is included in the configuration, the fabrication process is easy and only one more step UV exposure is needed during photoalignment process to produce domains. Based on this new configuration, a transflective LCD with high brightness and high contrast could be obtained.
P‐138: Axially Symmetric Domain Formed by Soft‐Lithographically Patterned LC Alignment Layers
Authors: Kim Hak‐Rin , Shin Min‐Soo , Bae Kwang‐Soo , Song June‐Yong , Choi Jong Sun , Kim Jae‐Hoon 
Published: August 2007

AbstractWe demonstrated an axially symmetric multi‐domain liquid crystal (LC) structure formed by soft‐lithographically patterned LC alignment layers. In our structure, homeotropic LC alignment layers are periodically patterned on a unidirectionally rubbed homogeneous LC alignment layer. The field‐induced LC reorientation on the non‐rubbed patterned surfaces is determined by the easy axis of the pattern boundaries, producing axially symmetric multi‐domains or a mono‐domain LC structures.