bluuebunny/crossref_metadata_2025_split huggingface dataset:
P‐231: Multilayer Polymer Light‐Emitting Diodes by Blade Coating Method
Authors: Tseng Hsin‐Rong , Meng Hsin‐Fei , Lee Kuan‐Chen , Horng Sheng‐Fu 
Published: January 2009

AbstractMultilayer polymer light‐emitting diodes (PLED) fabricated by blade coating are presented. Multilayer of polymers can be easily deposited by blade coating on a hot plate. The multilayer structure is confirmed by the total thickness and cross section view in scanning electron microscope. The efficiency of single layer poly(para‐phenylene vinylene) copolymer SuperYellow and poly(9,9‐dioctylfluorene) (PFO, deep blue) device are 9 cd/A and 1.7 cd/A respectively by blade coating. The efficiency of the PFO device is raised to 2.3 cd/A with a poly[(9,9‐dioctylfluorenyl‐2,7‐diyl)‐co‐ (4,4′‐(N‐(4‐sec‐butylphenyl))diphenylamine)] (TFB) electron‐blocking layer added by blade coating.
P‐248L: Late‐News Student Poster: High‐Efficiency Deep‐Blue Organic Light Emitting Diode with a Novel Blue Dye in Low‐Polarity Host
Authors: Jou Jwo‐Huei , Lin Yu‐Pu , Wu Ming‐Hsuan , Hsu Mao‐Fung 
Published: January 2009

AbstractA high‐efficiency deep‐blue organic light emitting diode was fabricated by using a novel blue light‐emitting dye 2,7‐Bis{2[phenyl(m‐tolyl)amino]‐9,9‐dimethyl‐fluroene‐7‐yl}‐9,9‐dimethyl‐ fluroene doped in 4,4′‐bis(9‐carbazolyl)‐biphenyl in a low‐polarity host. The resultant device showed a highly‐saturate blue light with CIE coordinates of (0.14, 0.06) with a record‐high external quantum efficiency of 4.6 % at 100 cd/m2, favoring the use for wide‐color‐gamut and low‐energy‐consumption OLED display.
P‐249L: Late‐News Poster: Collimated OLED Light Source with Patterned OLED and Microlens
Authors: Aratani Sukekazu , Shimizu Masao , Adachi Masaya , Sugita Tatsuya , Shibasaki Toshinari , Shimazaki Katsusuke 
Published: January 2009

AbstractWe developed for the first time a collimated OLED light source using a patterned OLED and a microlens. We demonstrated that the collimated OLED light source enhanced the luminance of an LCD with low aperture ratio by a factor of more than two compared with a conventional OLED light source, which was not patterned. Moreover, the luminance efficiency of this system was shown to be 7.3 times higher than that of the system with a conventional OLED light source that was not patterned. The collimated OLED light source with patterned OLED and microlens is thus very effective for achieving a highly efficient LCD with OLED backlight.
P‐232: Ferroelectric Liquid Crystal Cell for Speckle‐Noise Suppression
Authors: Andreev Alexander , Kompanets Igor , Minchenko Maxim , Pozhidaev Eugeny 
Published: January 2009

AbstractA new principle and simple technique of suppressing the speckle‐noise in images displayed by the laser projection system is proposed. Wave phasing in a laser beam and speckles are destroyed in real time when this beam passes through a single FLC cell where spatially inhomogeneous phase light modulation takes place due to special FLC material and electrical pulse regime.
P‐233: Multimode DBR Laser Operation for Frequency Doubled Green Lasers in Projection Displays
Authors: Gollier Jacques , Hu Martin H. , Ricketts Daniel , Loeber David , Bhatia Vikram , Pikula Dragan 
Published: January 2009

AbstractIn frequency doubled green lasers for laser scanning micro projectors, the wavelength fluctuations can create low spatial frequency and repeatable image artifacts that significantly degrade the image quality. We demonstrate a technique where the laser gain current is repeatedly reset to zero and the laser phase is randomized, both at high frequency. The image defects are replaced by high spatial frequency content noise that minimizes the detrimental effects in the human vision system.
P‐235: Polarization Recovery System Using PBS Array Suitable for Light‐Pipe‐Based Systems
Authors: Li Kenneth , Katkar Rajesh , Ouyang George 
Published: January 2009

AbstractVarious light‐pipe based polarization systems have been reported and commercialized in the literature. But due to the high power density, the long‐term performance has not been very desirable. This paper reports a polarization recovery system that uses a large area PCS array adapted for the light pipe based system. This system is very suitable for 3LCD and LCOS projection system that uses polarized light. Preliminary designs and simulations have been performed with very satisfactory results. Experiments will be performed in the near future and the results will be presented.
P‐237: Measurement of the Picture Contrast Enhancement of Gray Projection Screens
Authors: Rudd Michael J. , Dunn Patrick M. , Gemmer Eric C. 
Published: January 2009

AbstractIt is well known that in a home theater, a gray screen can often render a picture with a higher contrast than can a white screen. However, until now, the explanation has been obscure. This paper describes and quantifies a possible mechanism for this contrast enhancement. It will be demonstrated that gray screens can effectively enhance the contrast of a picture in a room with light surfaces. The proposed mechanism is that the screen reduces the amount of light back‐scattered from the walls and off the screen. Part of the effectiveness comes from the gray color, but part is probably also due to the directivity of the screen. Under the measurement conditions, we have shown that a dark gray screen, with directivity, can increase contrast by up to five times as compared with that of a matte white screen.
P‐251L:Late‐News Poster: Miniature Wide‐Throw‐Angle Scanning Fiber Projection Display
Authors: Schowengerdt Brian T. , Kundrat Matthew J. , Lee Cameron M. , Johnston Richard S. , Melville C. David , Reinhall Per G. , Seibel Eric J. 
Published: January 2009

AbstractAdvances in mobile devices have enabled internet access and viewing of images and video, but small screens constrain the experience. We have developed a novel scanning fiber optical projector that is 1.07 mm in diameter and 13 mm long, and can project images at up to a 100° throw angle.
17.1: Invited Paper: Inverted OLED
Authors: Noh Jeoung Kwen , Kang Min Soo , Kim Jong Seok , Lee Jung Hyoung , Ham Yun Hye , Kim Jung Bum , Son Sehwan 
Published: January 2009

AbstractWe report a novel and simple method to fabricate top‐emitting OLEDs having inverted structures. Contrary to the previous expectations, the inverted device provides even better device characteristics than that of the conventional OLEDs. Using the inverted OLED technology, we were able to fabricate 3.5″QVGA full‐color AM‐OLED devices.
17.2: High Efficiency Ultraviolet Light Emitting Organic Devices and Its Application to White Light Source
Authors: Mikami Akiyoshi , Mizuno Yuki , Takeda Shigeyuki 
Published: January 2009

AbstractA high efficiency UV‐OLED was developed and applied to a white light source by using red, green and blue color conversion materials. UV‐OLED showed high external quantum efficiency of 3.1 % with a peak wavelength at 380nm. “White by UV” showed 5,000cd/m2 in luminance and stable white color (x=0.33, y=0.31) against driving current and operation time.
17.3: Highly Efficient Fluorescent/Phosphorescent OLED Devices Using Triplet Harvesting
Authors: Kondakova Marina E. , Giesen David J. , Deaton Joseph C. , Liao Liang‐Sheng , Pawlik Thomas D. , Kondakov Denis Y. , Miller Michael E. , Royster Tommie L. , Comfort Dustin L. 
Published: January 2009

AbstractWe demonstrate efficient white and non‐white hybrid OLED devices operating by a triplet harvesting mechanism to create light. Triplet excited states are generated in a blue fluorescent light‐emitting layer (LEL) and utilized upon their diffusion to the phosphorescent LEL(s). At 1000 cd/m2 a blue/yellow hybrid OLED device shows external quantum efficiency (EQE) of 13.6%, 3.8 V, 30.1 lm/W, and excellent color characteristics suitable for display application. Performance of non‐white‐emitting hybrids, RGB white, and a tandem hybrid device is discussed. The triplet harvesting mechanism in all hybrid devices was verified by several experimental methods (spectral analysis, time‐resolved electroluminescence (EL), magnetic field effect on EL).
17.4: A Novel Technique to Study OLED Function
Authors: Sims Marc , Venter Steven W. , Parker Ian D. 
Published: January 2009

AbstractWe employ electrically induced absorption (EIA) spectroscopy to probe the internal operation of a series of NPB/Alq3(1) OLED structures. Our results complement the capacitance‐voltage measurements of Brütting et al [3] and support the proposal of a fixed negative charge population at the NPB/Alq3 interface. We show a direct signature for hole injection under reverse bias (as predicted in [3,4]) and demonstrate that the voltage onset for hole injection, Vh (equivalent to transition voltage, Vo in [3,4]) is largely independent of anode material. Conversely, Vh appears to depend sensitively on the cathode material (an exchange of LiF/Al for CsF/Al raises Vh by +0.5V). Finally, we observe a rise in Vh after a prolonged period of current stress and propose that this finding originates in a gradual neutralization of the negative interfacial charge population.
18.2: Bistable FLCOS Devices for Doubled‐Brightness Micro‐Projectors
Authors: O'Callaghan Michael J. , Ferguson Rachel , Vohra Rohini , Thurmes William , Harant Adam W. , Pecinovsky Cory S. , Zhang Yongqiang , Yang Su , O'Neill Matt , Handschy Mark A. 
Published: January 2009

AbstractOptical efficiency is of paramount importance to emerging ultra‐miniature projector products. We have developed experimental bistable ferroelectric‐liquid‐crystal‐on‐Silicon (FLCOS) projection microdisplay devices using newly developed FLC materials aligned on obliquely‐deposited SiO2. These devices enable doubling of illumination duty cycle, and hence doubling of achievable projector light output, while maintaining DC‐balanced electrical drive.
19.3: Novel Defect‐Repairing Method for Etched‐Thinning LCDs
Authors: Liu Yu‐Chen , Wu Jer‐Yau , Wang Su‐Chih , Chwu Jong‐Wen , Lin Chao‐Cheng , Chen Maw‐Song , Huang Tom 
Published: January 2009

AbstractA defect‐repairing method is applied to etched‐ thinning assemble liquid crystal display (LCD) cells. By spin‐coating a protective layer above the surface and around the edge of TFT‐LCD cell, this technique fills the defects, retains optical performances, and increases the surface and edge strengths by 51% and 75% respectively. Comparing with the conventional polished process, the proposed method avoids pressure influences to the inner structure within the panel.
19.4: Development of “Super View Resin,” the Optical Elasticity Resin for LCD Module
Authors: Shinya Yoshihisa , Kamiya Kenji , Toyoda Tomoyuki , Endo Yasumi , Soudakova Nelly , Kondo Hirofumi 
Published: January 2009

AbstractWe have developed the “Super View Resin (SVR),” a transparent elastic resin, which improves the shock‐resistant property and LCD visibility. Filling the air gap with a refractive index matching resin resolves the sunlight reflection problem inherent in the use of a reinforced cover glass lens. Moreover, the elastic filler works as a damper reducing any external shock, which prevents the cover glass and LCD Module from being damaged.
20.2: Stereoscopic 3D Display Using Patterned Retarder
Authors: Wu Yu‐June , Jeng Yue‐Shih , Yeh Pi‐Chun , Hu Chin‐Jen , Huang Wei‐Ming 
Published: January 2009

AbstractWe have developed a new wide viewing angle technology for 3D display with glasses. To utilize the circular light which made by combining patterned HW plate and QW plate, we can break the limitation of view angle for stereoscope display with linear patterned polarizer.
20.4: Objective Evaluation of Multi‐View Autostereoscopic 3D Displays
Authors: Salmimaa Marja , Järvenpää Toni 
Published: January 2009

AbstractAutostereoscopic 3D display technologies offer attractive solutions for the entertainment and media consumption. These technologies make it possible for the users to obtain more immersive experience by adding the real depth to the visual content shown on the display. The method used for the creation of the sensation of depth or stereo illusion as such contains several issues that need to be carefully considered so that sufficient image quality is maintained. Traditionally methods used for the 3D image quality evaluations have had their base in subjective testing. We believe that optical measurements can be used as an efficient tool for the 3D display characterization. We have developed objective characterization methods for the autostereoscopic displays and investigated how parameters affecting the stereo image quality can be defined, measured, and the effect on the stereo image quality evaluated. In this paper previously presented methodology is extended to cover autostereoscopic multi‐view displays, where a distinction between displays with continuous and discontinuous motion parallax is made. We are focusing on the definition for the 3D luminance and luminance uniformity, that are equally important, as well as 3D crosstalk, which we think is the dominant factor in the evaluations of the perceived 3D image quality.
21.3: Reconstruction Characteristics of MgO (111) Textured Protective Layer by Over‐Frequency Accelerated Discharge in ACPDPs
Authors: Kwon Sang‐Koo , Kim Jeong‐Ho , Moon Seung‐Kyu , Park Kyu‐Ho , Han Sung‐Su , Choi Jong‐Kwon , Kim Hyun‐Ha , Kim Sung‐Tae 
Published: January 2009

AbstractThe reconstruction characteristics of MgO (111) textured protective layer and the influences of silicon and MgO seed particle in AC‐PDP were investigated by over‐frequency accelerated discharge and these were correlated to the variations of electronic structures. The reconstruction and exaggerated grain growth (EGG) were closely correlated with the partial pressure of evaporated MgO in plasma space and explained by defect‐assisted 2‐D and/or 3‐D nucleation and growth of charged clusters during discharge under electric field in AC‐PDP.
21.5L: Late‐News Paper: Measurement of Exo‐Electron Emission from MgO Thin Film of AC‐PDP
Authors: Yoon Sang‐Hoon , Ryu Hyun‐Woo , Hong Cho‐Rong , Kim Dong‐Hoo , Ko Jae‐Jun , Kim Yong‐Seog 
Published: January 2009

AbstractExoelectron emission from MgO thin film was measured by attaching a high precision current sensor to the address electrode of rear plate of test panels of AC‐PDP. The measured results revealed that the exoelectron emission currents vary very sensitively with the type of doping elements used and measuring temperatures. The activation energy of the exo‐electron emissions estimated from the emission curves indicated that the trap levels lies between 0.05∼0.32eV below the bottom of its conduction band. This suggests that shallow electron trap levels within MgO film are mainly responsible for the exo‐electron emissions, rather than deep trap levels like F‐type centers.
22.2: Printable Phosphorescent Organic Light Emitting Devices
Authors: Xia Sean , Cheon Kwang‐Ohk , Brooks Jason J. , Rothman Mark , Ngo Tan , Hett Patrick , Kwong Raymond C. , Inbasekaran Mike , Brown Julie J. , Sonoyama Takuya , Ito Masaki , Seki Shunichi , Miyashita Satoru 
Published: January 2009

AbstractThis paper reports on a new approach to full‐color printable phosphorescent organic light emitting devices (P2OLEDs). Unlike conventional solution processed OLEDs that contain conjugated polymers in the emissive layer, the P2OLEDs emissive layer consists of small molecule hosts and dopants. We present a red P2OLED that exhibits luminous efficiency of 9 cd/A and a projected lifetime of 53,000 hrs from an initial luminance of 500 cd/m2, a green P2OLED with luminous efficiency of 35 cd/A and a projected lifetime 52,000 hrs from an initial luminance of 1000 cd/m2, a light blue P2OLED with luminous efficiencies of 18 cd/A and a projected lifetime 3,000 hrs from an initial luminance of 500 cd/m2, and a blue P2OLED with luminous efficiencies of 6 cd/A and a projected lifetime 1,000 hrs from an initial luminance of 500 cd/m2.
22.4: Invited Paper: Tuning Solution Processed OLEDs Towards R2R Printing
Authors: Beierlein Tilman A. , Kern Roland , Winnewissser Carsten J. 
Published: January 2009

AbstractSolution processed OLEDs offer the potential for highest throughput production processes such as roll‐to‐roll (R2R) printing. We use polymer mixtures with additives to evaluate and optimize the performance. Such multi‐component systems open up a huge parameter space by varying layer thicknesses, material combinations and concentrations. Manual device fabrication would be time‐consuming and expensive. A new custom built and automated fabrication and characterization setup accelerates material screening, testing and optimization. Furthermore, a systematic set of devices is the basis for reliable comparisons with simulations.
22.5: Late‐News Paper: High‐Efficiency Solution‐Processed Phosphorescent Green Organic Light‐Emitting Diode Using a High‐Quantum‐Yield Iridium Complex
Authors: Jou Jwo‐Huei , Chung Yu‐Chiao , Hsu Mao‐Feng , Wang Wei‐Ben , Chang Wen‐Chuan , Chen Cheng‐Chung , Liu Chi‐Ping , Wang Chun‐Jan , Wu Ming‐Hsuan , Chin Chih‐Lung 
Published: January 2009

AbstractMarkedly high‐efficiency phosphorescent green organic light‐emitting diode can be easily fabricated via solution process by the use of a novel iridium complex, bis[5‐methyl‐7‐trifluoromethyl‐5H‐ benzo (c) (1,5) naphthyridin‐ 6‐ one] iridium (picolinate) (CF3BNO). The resultant power (current) efficiency, at 100 cd/m2, was 70 lm/W (89 cd/A), while 21 lm/W (35 cd/A) by using typical vapor deposition. Besides proper device architecture design, the high efficiency may be attributed to the high quantum yield of the CF3BNO iridium complex.
23.2: A 10in. Flexible Active‐Matrix OTFT Array for QR‐LPD‐Based Motion Picture Displays
Authors: Maeda Hiroki , Matsuoka Masanao , Nagae Mitsutaka , Honda Hiroyuki , Suzuki Tomomi , Ogawa Ken‐ichi , Kobayashi Hironori 
Published: January 2009

AbstractA 10 inch, 80 dpi flexible Active Matrix Organic‐TFT array was fabricated with solution process. Exceeds 10:1 of high contrast image was displayed eith QR‐LPD. The active matrix array was refreshed with 300 micro seconds of gate pulse width, successfully. To reduce degradation of displaying image due to leakage current through paracitic capacitance in the circuit array, double sided flexible backplane structure was introduced. One side of plastic substrate that OTFT array was printed and the other side that Pixel electrodes was printed, are connected through via patterned by laser abration and filled with conductive ink by printing method. As a result, high aparture ratio of pixel electrode array without degradation of displaying image caused by leakage current through signal electrode was obtained.
23.3: Flexible Field‐Sequential‐Color FLCD Panels Driven by poly‐Si TFTs
Authors: Iwamoto Yoji , Motai Katsuyuki , Naitou Yasunori , Kadowaki Masaru , Ichimura Koji , Sato Hiroto , Fujisaki Yoshihide , Yamamoto Toshihiro , Fujikake Hideo , Kurita Taiichiro 
Published: January 2009

AbstractA novel flexible field‐sequential‐color FLCD panel driven by poly‐Si TFTs has been developed. A 16×16 active matrix panel was fabricated using polymer stabilized FLC and poly‐Si TFTs fabricated onto plastic substrate below 150°C, and colored moving images were demonstrated on the panel with frame frequency of 60Hz.
24.2: Single Layer Al‐Ni‐La‐Si Interconnections for Source and Drain of LTPS‐TFT LCDs Using Direct Contacts with both ITO and poly‐Si
Authors: Kugimiya Toshihiro , Yoneda Yoichiro , Kusumoto Eisuke , Gotoh Hiroshi , Ochi Mototaka , Kawakami Nobuyuki 
Published: January 2009

AbstractIt was demonstrated for the first time that the use of Al‐Ni‐La‐Si alloy films for the direct contacts of interconnection lines with both ITO and poly‐Si was feasible for the LTPS‐TFTs. Measured contact resistivity was in the order of 10−4 Ω.cm2 for ITO and Al‐0.6 at.% Ni‐0.1 at.% La‐0.5 at.% Si. The Al alloy films patterned on poly‐Si were found to be stable below 350 °C. It was also found that Al alloy has good dry etching characteristics such as a high etching rate and good selectivity to photo‐resist, suitable for high‐resolution LTPS‐TFT LCDs.
24.3: 32‐inch LCD TV Using Conventional PECVD Microcrystalline‐Silicon TFTs
Authors: Peng Ya‐Hui , Chen Chih‐Hsien , Chang Chan‐Ching , Lee Yeong‐Shyang , Huang Tzung‐Shi , Hou Chih‐Yuan , Huang Kun‐Fu , Tseng Yi‐Ya 
Published: January 2009

AbstractA 32‐inch microcrystalline silicon thin film transistor liquid crystal display was manufactured on 1500×1850 mm2 (G6) glass substrate. We have successfully deposited non‐porous and highly crystalline microcrystalline silicon film with interfacial treatment as the active channel layer for TFTs in such large size display. Microcrystalline silicon was deposited by a conventional (13.56 MHz) plasma‐enhanced chemical vapor deposition (PECVD) system, and the crystalline fraction is 60%. Crystalline fraction was successfully improved with optimized gas treatment on SiNx layer before μc‐Si:H film deposition. Microcrystalline silicon TFTs with interfacial modification have about 2.8 times and 4 times more on‐current than μc‐Si:H TFT without interfacial modification measured at room temperature and at −10°C, respectively. The μc‐Si:H film with good crystallinity used as the active channel layer will significantly improve the reliability of the microcrystalline silicon TFTs. Furthermore, during the bias‐temperature‐stress test (BTS), VTH shift for μc‐Si:H TFT with treatment after 3hr BTS test is only 1.3V while μc‐Si:H TFT without treatment has a VTH shift of 13V.
25.5: Invited Paper: An Updateable Holographic 3‐D Display Based on Photorefractive Polymers
Authors: Tay Savaş , Yamamoto Michiharu , Peyghambarian N. 
Published: January 2009

AbstractWe present the first updateable holographic 3‐D display with memory, capable of displaying a new image every few minutes. The holographic display uses a photorefractive polymer composite as recording medium with exceptional properties such as reversibility, high diffraction efficiency, large size (4×4 inches), fast recording and long hologram storage.
5.3: Polarity‐Sensitive Switching Nematic System from the Assembly of Achiral Tripod‐Shaped and Rod‐Shaped Molecules
Authors: Lee Ji‐Hoon , Lim Tong‐Kun , Kang Daeseung 
Published: January 2009

AbstractHere we report a nematic system showing polarity‐sensitive switching behavior. An achiral rod‐shaped liquid crystal (LC) and an achiral tripod‐shaped dopant assembled each other and formed a unit block with strong electric dipole moment. This unit block has a shape of a tripod with extended legs and showed a macroscopic polarization under the electric field. Although the pure LC never showed polarity‐sensitive switching, but the optic axis of the assembled unit blocks rotated clockwise or counterclockwise depending on the sign of the applied field. The threshold field to show the polarity‐sensitive switching was lower in the sterically assembled sample (0.1 V/μm) than in the hydrogen‐bonded one (1.3 V/μm) and the field response time was much faster in the former case. The inverse of the response time of the sterically assembled sample was linearly proportional to the strength of the electric field in the strong field regime and this also indicates the polar property of the doped nematic system.
26.4: The Temporal Aperture of Broadcast Video
Authors: Van Heesch Franciscus H. , Klompenhouwer Michiel A. 
Published: January 2009

AbstractThe motion portrayal of TV‐Signals on LCDs depends on the temporal bandwidth of both display and signal. In this paper, extensive measurements of the temporal (dynamic) resolution of TV‐Signals are presented which are necessary to determine the temporal requirements of displays.