bluuebunny/crossref_metadata_2025 huggingface dataset:
P‐44: Patterned Microlens‐Array Films Assisted with Auxiliary Electrodes for Luminance Improvement in Large‐Area OLEDs
Authors: Chen Kuan‐Yu , Hsiao Yu‐Ting , Lin Hoang‐Yan , Lee Jiun‐Haw , Wei Mao‐Kuo
Published: October 2010

The auxiliary or supporting electrodes are often utilized for the large‐emitting‐area OLEDs for better electrical properties. However, the auxiliary electrodes also blocked or absorbed the light from the emitter. In our optical simulation, we present the partitioned OLED units with the grid‐type auxiliary anode and patterned or center‐hollowed microlens‐array films to obtain more than 141.7% in relative luminance at normal direction.
P‐45: Multi‐gray‐level Reflective LCD Module Design and Its Tiled Application
Authors: Tang Yongming , Lei Wei , Zheng Yaosheng , Wang Baoping , Sun Gang , Xia Xinglong
Published: October 2010

To meet the requirement of large‐Sized indoor/outdoor billboard application, novel reflective LCD module has been designed and fabricated. The 300mm × 300mm sized reflective LCD panel, which has the resolution of 96×96 and single driver board in behind, can be applied in the seamless tiled display wall. 8‐gray‐level display had been achieved with the regulating on the driver pulse number.
11.2: A 2.4in. AMOLED with IGZO TFTs and Inverted OLED Devices
Authors: Hsieh Hsing‐Hung , Tsai Tsung‐Ting , Chang Chin‐Yu , Wang Hsiao‐Han , Huang Jung‐Yen , Hsu Shih‐Feng , Wu Yuan‐Chun , Tsai Tze‐Chien , Chuang Ching‐Sang , Chang Lee‐Hsun , Lin Yu‐Hsin
Published: October 2010

The bottom gate coplanar type IGZO TFTs were effective fabricated with good performance by using fully conventional processes. The 2.4 inch IGZO TFTs driven AMOLED displays were demonstrated with both normal and inverted OLEDs. Further, the stability and reliability of these devices and displays were particularly investigated.
P‐47: Fast‐Evaluation Approach of Predicting CCFL Mechanical Strength in LCD‐TV Module
Authors: Dai Wei‐Ting , Lin Mao‐Hsing , Yang Tzu‐Ching , Huang Kun‐Feng
Published: October 2010

When the CCFL is jumped outside the restricting lamp supporter during mechanical reliability test, the possibility of lamp failure is rapidly increasing in the LCD TV module. To prevent these failure symptoms at design phase, a modified Euler beam formulation is used to evaluate the risk of CCFL damage. This formula provides a readily way for realizing the structural reliability of CCFL in different supporter positions.
P‐48: Quantitative Evaluation Method for the White Uniformity of a Large‐Sized LED Backlight
Authors: Nagamine Kunihiko , Tomioka Satoshi , Masakura Yuko , Tamura Tohru , Ueda Mitsunori , Shimpuku Yoshihide
Published: October 2010

We report the results of viewer perception of the degree of the white uniformity of LED backlight and photometric data measured by a 2D colorimeter. We propose a multiple regression model in order to provide a more dependable check on the uniformity of LED backlights.
P‐189L: Late‐News Poster: Solution‐processed Passivation Layer for a‐Si TFTs with High Reliability and Processability for LCD
Authors: Sugitani Koichi , Tanabe Akihiro , Hanmura Masahiro , Ohmori Hironori , Katoh Takeyoshi , Tada Mitsushi , Suzuki Teruhiko
Published: October 2010

We have developed a solution‐processed passivation layer for amorphous Silicone TFTs. The passivation layer has both high reliability and processability for LCD. It can contribute to the reduction of manufacturing cost and RC signal delay problem in a major trend toward larger size of LCD panel.
P‐66: Measurement Comparison of Ambient Contrast for Liquid Crystal Displays
Authors: Lan Yu‐Ping , Pan Shiang‐Yuan , Mou Tong‐Sheng , Xu Yingying
Published: October 2010

The results of a round robin test of ambient contrast for liquid crystal displays that was carried out by four participants are reported. Two samples with haze and high reflectance surfaces under different illuminances were measured by two different measurement schemes based on diffuse lighting. The specular effect was also considered and discussed.
P‐69: Beyond RGB‐Primaries: Chromaticity Measurement Issues for Multi‐Primary Displays
Authors: Tomizawa Kazunari , Nakamura Kohzoh , Ueki Shun , Yoshida Yuichi , Mori Tomohiko , Hasegawa Makoto , Yoshida Akiko , Narutaki Yohzoh , Itoh Yasuhisa , Yoshida Yasuhiro
Published: October 2010

The current standards of color gamut measurement regarding RGB‐primary displays are not applicable to multi‐primary color (MPC) display systems. We show two case studies that measurement performed by simply extending the use of today's RGB‐based standards is not able to provide accurate evaluation of the color gamut of MPC displays. The color gamut of MPC displays depends on signal processing algorithm; therefore, for measuring the color gamut of MPC displays, we propose to use not only the input signals of the maximum values for respective colors but also medium‐level signals which are able to measure the chromaticity of respective primary color points on MPC display.
P‐72: Method for Perceptual Contrast Measurement Under Different Ambient Conditions
Authors: Shin Mi‐Ok , Yang Sun‐A , Kim Su‐Young , Chong Jong‐ho , Lee Seung‐Bae , Kim Sang Soo
Published: October 2010

A new measurement method called perceptual contrast length (PCL) is proposed as an improved standard for measuring contrast. PCL is based on a brightness index and has better correlation to human perception of image quality. The method resolves existing issues with the use of absolute contrast ratio.
P‐85: Energy Recovery Circuit with Variable Inductance in AC‐Plasma Display Panel
Authors: Lim Jae Kwang , Park Hyung Dal , Tae Heung‐Sik , Park Suk Jae , Ito Eiji
Published: October 2010

The new energy recovery sustain‐circuit (ERC) featuring a variable inductance according to display load is proposed to improve the luminous efficiency. The proposed ERC consists of the dual path rising energy recovery circuit and one path falling energy recovery circuit. In the dual path, one path rising energy recovery circuit uses a small inductance for the display load below 50%, whereas the other path rising energy recovery circuit uses a lager inductance for the display load over 50%. The proposed ERC contributes to reduction of the reactive power by using the LC resonance optimized for the display load.
P‐88: Surface‐Based Adaptive Incremental Subfield Coding Method for Plasma Display Panels
Authors: Park Myungjin , Lee Jaewoon , Kim Young Hwan
Published: October 2010

This paper proposes a new incremental subfield coding method using region segmentation for plasma display panels (PDPs). The proposed approach suppresses the halftone noise (HN) of the PDPs, while completely eliminating false contour noise (FCN), as do existing incremental subfield codes, by selecting an optimal incremental subfield code adaptively for a given input image. The proposed method selects the HN sensitive pixels using region segmentation and maps the problem of selecting the optimal incremental subfield code onto a special‐case shortest path problem.
P‐95: Driving Waveform to Reduce Power Consumption in AC‐PDP with MgO Single‐Crystal Powder
Authors: Choi Byung‐Tae , Kim Jae Hyun , Park Hyung Dal , Jang Soo‐Kwan , Tae Heung‐Sik , Kim Deok Myeong , Seo Jeong Hyun
Published: October 2010

The negative falling voltage during the reset‐period affects the power consumption as well as the statistical delay time during the subsequent address period. In the PDP without MgO single‐crystal powder, the negative falling reset voltage should be increased in the negative direction to minimize the statistical delay time, whereas in the PDP with MgO single‐crystal powder, the negative falling reset voltage can be adjusted to minimize the power consumption thanks to the improvement of the statistical delay characteristics. As a result of adjusting the negative falling voltage in the 50‐inch FHD PDP with MgO single‐crystal powder, the consumed power and background luminance decreased about by 8.1 % and 33 % for the full black pattern, respectively. for the full‐white pattern, the consumed power was reduced about by 5.6 % and the luminous efficiency was improved about by 3.5 %.
P‐97: Secondary Electron Emission Characteristics of (Mg0.85Ca0.15)O Thin Film Layer for AC PDP
Authors: Yoon Sang‐Hoon , Kim Yong‐Seog , Kim You‐Han , Jung Seok
Published: October 2010

In this study, we attempted to reduce firing voltages of ac‐PDPs by alloying MgO electron emission material with CaO. MgO and CaO powders were mixed together and sintered at 1650°C for 10 hours under nitrogen atmosphere to prepare pellets. The electron emission layer was formed by evaporating the pellets using an electron‐beam evaporator. Test panels with such alloyed MgO‐CaO electron emission layer showed significantly reduced firing voltages
P‐98: Spatiotemporal Analysis of Sustaining Discharge Using an ICCD Camera
Authors: Min Woong Kee , Choi Kwang Yeol , Yang Sung Soo , Kim Choon Sub
Published: October 2010

In this paper we have classified sustaining discharge into four modes. To analyze each discharge mode of a 50‐inch full HD (1920×1080) PDP, spatiotemporal IR images were captured using an ICCD camera. The propagation morphologies, efficiency and controllability were then investigated.
P‐193L: Late‐News Poster: Optimized Local Dimming Solution in IPS‐mode LCD Technology
Authors: Kwon KyungJoon , Lee Junghwan , Oh EuiYeol , Chung InJae
Published: October 2010

High contrast ratio and low power consumption for LCDs with LED BLU can be obtained by backlight local dimming with pixel compensation while maintaining image brightness. This technique can greatly increase the contrast ratio of IPS‐mode LCDs. The technique, however, suffers from the side effects called flicker, halo, clipping, and non‐uniformity. The intensity of the side effects is proportional to the amount of the local dimming applied. This paper presents a noble local dimming algorithm which adaptively determines the amount of backlight dimming by characteristics of each block in each scene and feedback values to maximize contrast ratio and power consumption saving effect without noticeable side effects. The experimental results of the proposed algorithm are shown along with those of conventional algorithms.
P‐99: A Novel Luminescent Tube with Linear CNT Field Emission Cathode Prepared by Electrophoresis
Authors: Guo Tailiang , Ye Yun , Zhang Yongai , Lin Zhixian , Lin Jinyan
Published: October 2010

In this report, a novel luminescent tube with carbon nanotubes (CNT) field emission cathode prepared on linear metal wires by electrophoresis is demonstrated. The results show that the linear cathodes of CNT are good emission sources and suitable for applications in the vacuum lighting devices.
P‐103: Redistributed Deep States Created by Mechanical Bending to Improve the Electrical Reliability of a‐Si:H TFTs on Flexible Substrates
Authors: Lee M. H. , Lu S.‐H. , Chang S. T. , Tang M. , Huang J.‐J. , Ho K.‐Y. , Huang Y.‐S. , Lee C. C.
Published: October 2010

The disordered bonds of a‐Si:H may generate a redistribution of trapped states with strain bending. The redistributed deep states may saturate with multiple mechanical bending cycles, and it would improve the reliability with drain current stress of a‐Si:H TFTs on flexible substrates. It is possible to produce low cost and highly uniform AMOLED systems for flexible display applications using a‐Si:H TFTs array backplanes.
P‐104: 4.8” QVGA Electrochromic Displays Driven by Oxide TFTs
Authors: Chung Deuk Seok , Kim Jung Woo , Noh Chang Ho , Kim Eok Su. , Chun Young Tea , Jeon Seog Jin , Das Rupasree Ragini , Song Byong Gwon , Jin Yong Wan , Lee Sang Yoon
Published: October 2010

We have developed 4.8″ QVGA active matrix electrochromic displays(AMECD) based on oxide TFTs backplane. for the high resolution(100PPI) and gray scalable(16 levels) display, Cross‐talk free structure and a unique process to deposit selectively titanium dioxide on each pixel electrode were presented.
P‐111: Distinguished Poster: Reliable Electrofluidic Display Pixels without Liquid Splitting
Authors: Zhou Kaichang , Yang Shu , Kreit Eric , Feld Jason Heiken
Published: October 2010

Liquid splitting has been observed in electrofluidic displays when colored pigment dispersion recoils back into reservoir. Application of Laplace pressure to liquid film causes the liquid splitting problem. As demonstrated herein, the liquid splitting problem can be effectively solved by increasing interfacial surface tension or decreasing pixel size.
P‐114: A Novel Curved LCD with Highly Durable and Slim Profile
Authors: Jo Jae Hyung , Jhe Ji Hong , Ryu Sang Chul , Lee Kyung Ha , Shin Jong Keun
Published: October 2010

We have developed curved liquid crystal display with highly durable glass substrates which are pretreated. Thin glasses lower than 0.5 mm thickness are too breakable to be applied to the mass production of LCDs. Thin Glass substrates for TFT‐LCD can be damaged by abnormal distortion during the process or curved LCD fabrication etc. A novel cell was prepared by lamination of flexible plastic or chemical treatment on the glass surface after polishing from 0.5 mm to 0.1 mm. We have developed 10.1 inch HDS‐LCD (highly durable and slim LCD) with 0.15 mm glass substrate, radius of curvature and maximum endurance weight are 33 cm and 2.8 kgf, respectively.
P‐195L: Late‐News Poster: Ultra‐Low Drive Voltage Bistable Reflective Liquid Crystal Display in Flexible Format
Authors: Tang Ben , Yang Jie , Zhao Jiangbin , Wang Shenggang , Li Le
Published: October 2010

This paper reports on the development of an ultra‐low drive voltage bistable reflective liquid crystal display. As compared to the state‐of‐the‐art technologies that require ≥25V drive voltage, the new display can be driven under 4V.
13.2: Optimization of Electrode Shapes for High Performance Optically Isotropic Liquid Crystal Display
Authors: Yang Gyu Hyung , Kim Mi‐Kyung , Kang Byeong Gyun , Yoon Sukin , Kim Min Su , Chae Mina , Lee Seung Hee , Rao Linghui , Wu ShinTson
Published: October 2010

This paper focuses on optimization of electrode shape in polymerstabilized blue phase or nanostructured liquid crystal composites to lower operating voltage and improve light efficiency. The electrode with taper angle of reverse elliptic shape decreases operating voltage by 18.9% and improves transmittance by 29.8% compared to that in conventional electrode structure. Additionally, the performance of the device such as contrast ratio and viewing angle characteristic is improved.
P‐120: Low Voltage FLC for Fast Active Matrix Displays
Authors: Andreev Alexander L. , Andreeva Tatiana B. , Kompanets Igor N.
Published: October 2010

The process of FLC director reorientation in alternating electric field is considered for the case, when interaction of FLC molecules with the substrates results in portion unwinding of helix structure and domain walls motion. Hysteresis‐free electrooptical response as fast as 30÷70 μs was achieved in FLC cells of 1.0 and 1.3 μm thickness at the electric field intensity of 1.0÷2.0 V/μm. This result is very important for the practical use of FLC materials in fast active matrix displays.
P‐123: Patterned Rubbing Alignment Technology
Authors: Muravsky Alexander , Agabekov Vladimir , Zhavnerko Genady , Mahilny Uladzimir , Stankevich Alexander
Published: October 2010

We report novel low temperature liquid crystal alignment technology that offers unique pattern regulation by high anchoring rubbing method. Photoresist properties of alignment layer allow consequent deposition, rubbing, non‐polarized photoexposure and wet development for mask defined surface aligning pattern. Both analysis of the surface by AFM and cell samples with pattern alignment are presented.
P‐129: Stable Four‐domain Twisted Nematic Structure using Stacked Alignment Layer
Authors: Moon Yeon‐Kyu , Jo Soo In , Bae Kwang‐Soo , Lee You‐Jin , Yu Chang‐Jae , Kim Jae‐Hoon
Published: October 2010

We proposed a stable four domain TN structure with high pre‐tilt angle. A stacked alignment layer produced high pre‐tilt angle and stabilized the four TN domains at even zero or low voltage regime. In our structure, the excellent viewing characteristics were obtained.
P‐130: Field‐Controlled Vertical Aligned Nematic Mode for High Performance LCD Application
Authors: Park Min Soo , Yi Jonghoon , Kwon Jin Hyuk , Gwag Jin Seog
Published: October 2010

We present as a new LCD display mode, field‐controlled vertical alignment (FVA) nematic mode characterized by additional stripe type common electrodes which play important role to generate horizontal electric field that prevents LC disclination in vicinity of the middle region of electrodes, unlike PVA mode. So the proposed FVA mode can improve response speed and transmittance remarkably. Consequently, it is useful to upgrade the LCD display quality.
P‐136: Novel In‐Cell Retarder of Alkali Development Type
Authors: Matsuyama Takanori , Kobayashi Takeshi , Tsubaki Kouki , Watanabe Toshihisa , Mori Yoshihiro
Published: October 2010

A patterned retarder is important in LCDs and 3D displays. As for the patterning method of retarder, developing in Alkali aqueous solution was very difficult. We have developed the patterned retarder consisting of UV‐curable liquid crystal materials of the new type that developing is possible in Alkali aqueous solution.
P‐141: The Advanced Transflective IPS LCD by Photo Alignment Technology
Authors: Lee Jong‐Hwae , Lee Won‐Ho , Shin Dong‐Cheon , Lim Jae‐Hyung , Park Ki‐Bok , Lee Joon‐Dong , Kim Wook‐Sung , Yang Myung‐Su , Hwang Yong‐Kee , Chung In‐Jae
Published: October 2010

We have developed 2.4″ QVGA transflective IPS LCDs with novel cell configuration. Transflective LCDs have intrinsically the difference of the optical phase retardation between the transmissive part and the reflective part. In order to compensate for this optical path length difference, we have newly designed the separate LC alignments for each transmissive and reflective parts with photo‐alignment technique. The transmissive part has a homogenous liquid crystal alignment driven by an in plane electric switching field, which exhibits superb wide viewing angle characteristics. In the reflective part, the twisted liquid crystal alignment is adopted. Based on this new configuration, high reflectance and better contrast ratio can be provided without any compensation film or patterned retarder unlike conventional transflective LCDs.
P‐148: High‐Efficient Green OLED over 150 Im/W with New P‐doped Layer Exhibiting No Optical Loss Derived from Charge Transfer Complex
Authors: Seo Satoshi , Sasaki Toshiki , Sugisawa Nozomu , Nowatari Hiromi , Ushikubo Takahiro , Oe Yuko , Kadoma Hiroshi , Nakashima Harue , Ohsawa Nobuharu
Published: October 2010

In order to maximize the power efficiency of OLEDs, a novel p‐doped layer, which exhibits almost no voltage and optical losses, has been developed. By using this p‐doped layer, we succeeded in fabricating a white tandem OLED over 30 lm/W with a high color temperature of 5,400 K and a green OLED of a top emission type over 150 lm/W.
14.1: Comparison of Blur Edge Time and Gaussian Edge Time as Measures of Motion Blur
Authors: Tourancheau Sylvain , Brunnström Kjell , Watson Andrew B. , Andrén Börje
Published: October 2010

Blur Edge Time has been shown to be a reasonable metric for characterisation of motion blur of LCD displays. It can be estimated by taking the 10% to 90% level of the Moving Edge Temporal Profile or by using the standard deviation of a fitted cumulative Gaussian function. In this paper we will compare these two ways of estimating the Blur Edge Time. Ultimately the usefulness of these metrics of motion blur is whether they are good predictors of perceived motion blur.
P‐157: Highly Efficient Long‐Lived Blue Fluorescent OLED Achieving External Quantum Efficiency over 8% and Its Application to OLED Lightings
Authors: Seo Satoshi , Suzuki Tsunenori , Shitagaki Satoko , Ushikubo Takahiro , Ogita Kaori , Suzuki Hiroki , Nakashima Harue , Yamagata Sachiko , Inoue Hideko , Kadoma Hiroshi , Ohsawa Nobuharu
Published: October 2010

We succeed in achieving both a long lifetime of 12,000 hours and a high power efficiency of 13 lm/W at a luminance of 1,000 cd/m2 in a pure‐blue fluorescent OLED. In addition, we have also developed a high‐performance warm‐white OLED achieving 100 lm/W by incorporating the blue fluorescent OLED into a tandem structure, which is applicable to OLED lightings.
P‐162: Carrier Injection Mechanism in a Mixed Single Layer Organic Light Emitting Device
Authors: Wang Zhaokui , Naka Shigeki , Okada Hiroyuki
Published: October 2010

Injection properties of electrons and holes in a small organic light emitting device with a mixed single organic layer were investigated by current vs voltage measurements using Au/MoO3 and Al alloy as an electron and hole injection electrodes, respectively. On the basis of the temperature dependence of currents through the interface between electrodes and mixed single organic layer, the carrier injection mechanism at the interface was primarily ascribed to the Schottky thermionic emission with the barrier height of 0.25 eV and 0.67 eV for holes and electrons, respectively. It was found that the barrier height of the electron could be controlled by changing LUMO level of mixed organic materials. The interfacial state analysis demonstrated that the electron barrier height was also dependent on the interfacial conditions of the devices.
P‐163: Carbazole‐Isoquinoline Hybrid Bipolar Host Material for Highly Efficient Green Electrophosphorescent OLEDs
Authors: Lee Kum Hee , Kang Hyun Ju , Kim Seul Ong , Yoon Seung Soo , Kim Heo Min , Seo Ji Hyun , Kim Young Kwan
Published: October 2010

We synthesized and demonstrated electroluminescent properties of a bipolar host material such as 9‐(3‐(isoquinolin‐1‐yl)phenyl)‐9H‐carbazole (Czpiq). Particularly, by using Czpiq as a host and (bis[2‐(1,1′,2′,1″‐terphen‐3‐yl)pyridinato‐C,N]iridium (III) (acetylacetonate) (tphpy)2Ir(acac) as a dopant, a green electrophosphorescent OLED was fabricated, showing a maximum power efficiency of 47.13 lm/W, maximum external quantum efficiency of 12.31%, and CIE x,y coordinates of (0.34, 0.58) at 8V.
P‐198L: Late‐News Poster: Analysis of Exciton Distributions in OLEDs: The Influence of Optical Modes and Energetic Disorder
Authors: Ruhstaller Beat , Knapp Evelyne , Reinke Nils A. , Moos Michael , Perucco Benjamin , Rezzonico Daniele , Lu M.‐H. Michael
Published: October 2010

Our numerical analysis demonstrates that exciton distributions extracted from spectral emission measurements of OLEDs are equivalent to those obtained with charge and exciton transport simulations when optical quenching effects are taken into account. The transport simulations are based on the Extended Gaussian Disorder Model for organic semiconductors.
P‐200L: Late‐News Poster: High‐Efficiency, High Color Rendering White OLEDs with Five Emitters
Authors: Jou Jwo‐Huei , Chou Yi‐Chieh
Published: October 2010

In this paper, we describe the formatting guidelines for the SID International Symposium Digest of Technical Papers. By downloading this template from the website, you will have the formats for your article, so that it can be electronically submitted Power efficiency (PE) of white OLEDs (WOLEDs) drastically decreases with the increase of color‐rendering index (Ra). By using five emitters, we have, however, successfully fabricated a power efficient WOLED with Ra=94, PE=7.5 lm/W at 1,000 cd/m2 and Ra=92, PE=12.5 lm/W at 100 cd/m2.
P‐173: Improved Liquid Cooling System for Ultra High Power LED Projector
Authors: Lee Mao‐Yi , Wang Alex , Yen Jung‐Hsien , Chou Jung‐Hua
Published: October 2010

In applying ultra high power LEDs for projectors, cooling system is required to dissipate around 90W of power for a single LED. An improved liquid cooling system has been developed to solve the thermal issue which can keep the LED junction temperature (Tj) less than 110°C at 30 A driving current and able to achieve long a life time over 60,000 hours.
P‐174: Piezoelectric Tuning Technology to Compensate for Variation in Resonant Frequency in a MEMS Mirror
Authors: Honda Takeshi , Takanashi Nobuyuki , Ishibashi Osamu , Okumura Fujio
Published: October 2010

An effective method to tune the resonant frequency of a micro scanning mirror with a piezoelectric element is presented. Though the resonant frequency (fr) is determined by the structure and size of the micromirror and the torsion bar, the fr varies according to the environmental temperature, driving voltage, and fatigue of the torsion beams. We have developed an effective mechanism to control the stress of the torsion bars using the piezoelectric elements and we succeeded in tuning 0.9% of the resonant frequency of the scanning mirror which corresponds to the variation of the emvironmental temperature with 83 degree.
P‐177: Systems and Methods for Correction of Variations in Speed of Signal Propagation through a Touch Contact Surface
Authors: St. Pierre Richard
Published: October 2010

Touch screens that use bending wave technology such as the 3M MicroTouch DST Touch System require specific knowledge of the wave speed of the bending waves for accurate touch localization. When the sensor does not have uniform thickness, the wave speed can vary across the sensor, resulting in errors in touch location. This paper examines a method to correct for these errors and allow greater thickness variation in the sensor while maintaining accurate performance.
P‐181: A Charge‐Share‐Based Relative Read‐Out Circuit for Capacitance Sensing
Authors: Jang Yeong‐Shin , Gwak Ki‐Uk , Lee Sang‐Sung , Lee Sang‐Gug , Kim Ji‐Hun , Oh Hyung‐Seog
Published: October 2010

A new charge share based relative read‐out circuit is proposed. The proposed relative scheme reduces number of integrators by half and alleviates requirements of following blocks, which can make the system more power‐efficient. Charge share scheme increases read‐out circuit's sensitivity by cancelling parasitic capacitance effects of I/O pad.
15.2: Bistable D3 Electrowetting Display Products and Applications
Authors: Rawert Juergen , Jerosch Dieter , Blankenbach Karlheinz , Bartels Frank
Published: October 2010

D3Displays electrowetting displays “DropletDrivenDisplays”; developed by advanced display technology ADT Deutschland GmbH have features like bistability and highest reflectivity, which offer unique application options in the area of nonemissive displays. This paper deals with the “No Power” green display technology and its applications for indicators and character displays including optical performance comparison.
3.1: A Novel Polarizer Glassestype 3D Displays with a Patterned Retarder
Authors: Kang Hoon , Roh SuDong , Baik InSu , Jung HyunJoon , Jeong WooNam , Shin JongKeun , Chung InJae
Published: October 2010

To ameliorate the polarized glassless type 3D display with a patterned retarder, we strongly recommend the iPR in cell black stripe Patterned Retarder structure. In 3D mode, this particular structure can improve vertical viewing angle. When 2D switching mode is expressed, luminance and visibility will ameliorate at the same time
15.3: Optical Optimization of the SinglePolarizer BiNem Display for eReading Applications
Authors: Osterman Jesper , Madsen Louise , Angeleé Jacques , Leblanc François , Scheffer Terry , Nordström Robert
Published: October 2010

The singlepolarizer BiNem LCD epaper display is optimized for ereading applications. By compensating with a biaxial halfwave retarder, contrast enhancement and increased viewing angles are realized, and parallax is eliminated with an internal reflector. Optimized AR/AG coating and diffuse adhesive improves the display legibility and reading comfort. Compatibility with internalreflector aSiTFT substrates is demonstrated.
16.3: Directional Backlight Lightguide Considerations for Full Resolution Autostereoscopic 3D Displays
Authors: Brott Robert , Schultz John
Published: October 2010

This paper will describe the requirements and considerations necessary to create a directional backlight suitable for use with a 3D film method for achieving full resolution autostereoscopic 3D displays in handheld and portable devices. A general overview and example will be given.
3.6L: LateNews Paper: High Transmission and High Contrast PBS for Mobile Projection Applications
Authors: Lee Seong Taek , Chee Melinda , Chan Ken , Teo Kevin , Yap Siew Chin , Watson Philip E. , Ng Joanna , Aastuen David J.
Published: October 2010

We report the development and the successful product launch of a new 3M Polarizing Beam Splitter, 3M PBSA, which enables high performance optical engines for Liquid Crystal on Silicon LCOS projectors. This PBSA has typical effective transmission of 94% of polarized light with a double pass contrast of around 1500:1. Recent developments in contrast performance, incident angle dependency, and thermal stability are reported.
17.3: aSi:H Thinfilm Transistors with a New Hybrid Dielectric Highly Stable under Mechanical and Electrical Stress
Authors: Han Lin , Song Katherine , Wagner Sigurd , Mandlik Prashant
Published: October 2010

A resilient, homogeneous, hybrid of silicon dioxide and silicone polymer deposited at roomtemperature replaces the conventional, brittle, silicon nitride barrier layer and gate insulator in amorphous silicon thinfilm transistorsaSi:H TFTs on flexible polyimide foil. The electron fieldeffect mobility is high at 1.6 cm2/V⋅s, and the threshold voltage shift under high gate bias is comparable to that in conventional aSi:H/SiNx TFTs fabricated at 300°C. The substhreshold slope is 290 mV/decade. The new transistors are highly flexible, as they can be bent down to 0.5 mm radius 5% strain in tension and down to 1mm radius 2.5% strain in compression. These TFTs qualify for rollout screens of handheld devices.
17.4L: LateNews Paper: Contact Resistance and Process Integration Effects on HighPerformance Oxide TFTs with SolutionDeposited Semiconductor and Gate Dielectric Layers
Authors: Heo Jaeseok , Kim Junghan , Choi Seungchan , Park KwonShik , Kim ChangDong , Hwang Yong Kee , Chung InJae , Meyers Stephen T. , Anderson Jeremy T. , Clark Benjamin C. , Greer Michael , Jiang Kai , Grenville Andrew , Keszler Douglas A.
Published: October 2010

Highperformance TFTs with solutiondeposited amorphous oxide semiconductor and gate dielectric layers are fabricated at ≤ 350 °C. The initial performance and stability of these TFTs are investigated with respect to device structure and source/drain materials. Topcontact TFTs exhibit better electrical performance and reliability than bottomcontact devices. Representative topcontact device mobility is 1.90 cm2/Vs with an ontooff drain current ratio of 7.0 × 108.
18.2: 20.7inch QSXGA White and Black Medical Display Employing White OLED
Authors: Choi Hong‐Seok , Han Chang‐Wook , Sung Changje , Kim Hwa Kyung , Lee Jae Man , Kim Jun Jung , Yu Sangho , Hwang Soon Jae , Hong Soon Kwang , Kim Bum Sik , Lee Nam Yang , Ahn Byung Chul
Published: October 2010

We report 1stacked and 2stacked white OLED WOLED device with higher color temperature and 20.7inch white and black medical display. Fabricating WOLED with two emitting layers of fluorescent blue dopant and phosphorescent dopants, we achieved luminous efficiency of 15.4 cd/A and CIE coordinates of 0.275, 0.303 for 1stacked WOLED, and luminous efficiency of 54.1 cd/A and CLE coordinates of 0.327 0.321 for 2stacked WOLED at 10 mA/cm 2. The 20.7inch WOLED proto type shows higher ambient contrast ratio, lower power consumption compared to conventional LCD, which is critical feature for supporting accurate medical diagnosis.
4.1: A Novel Amorphous Silicon Gate Driver with Enhanced Driving Capability
Authors: Chiang ChienHsueh , Liu Kunyo , Sheu Wentsai , Liu Vincent , Huang Owen , Yang Chiulien
Published: October 2010

A 3.3inch FWVGA 480*RGB*854 LCD using an integrated amorphous silicon gate driver ASG has been developed. The proposed ASG has ten times driving capability than the conventional ASG. We adopted bilateral driving method and the ASGs are divided into two parts as odd and even stages.
18.3: Low Power 3.4inch Quarter High Definition OLED Display Using InGaZnOxide TFTs and White Tandem OLED
Authors: Miyake Hiroyuki , Shishido Hideaki , Sasaki Miyuki , Ohara Hiroki , Nowatari Hiromi , Ushikubo Takahiro , Seo Satoshi , Koyama Jun , Yamazaki Shunpei , Oikawa Yoshiaki , Maruyama Hotaka , Sakakura Masayuki
Published: October 2010

We recently succeeded in manufacturing a 3.4 inch QHD OLED display 326ppi with high aperture ratio, 40%, in which we adopted the white OLED using a tandem structure and a color filter method. Besides, we achieved 40% lower the power consumption of the driver circuit 60mW by improving it.
19.2: Adaptive Luminance and Saturation Control for RGBW OLED Displays
Authors: Miller Michael E. , Basile Joseph M.
Published: October 2010

An algorithm is discussed for adoptively adjusting the luminance and saturation of images for an RGBW OLED display. By considering image statistics, this algorithm significantly reduces the peak current per color channel and the peak display current while reducing luminance or saturation for only infrequently occurring images.
19.3: Spatial Analysis of MultiPrimary Color Matrix Arrangements for Mobile Displays
Authors: Chorin Moshe Ben
Published: October 2010

In this paper we present the concept of Pixcale displays and analyze their spatial performance. In these displays multiprimary color matrix is placed on top of a standard RGB TFT backplane providing high luminance efficiency with respect to RGB displays of the same subpixel size. However, the placing of more than three primaries on a backplane with subpixel aspect ratio of 1:3 results in an increased period of the full color sequence. In the paper we analyze the implication of the increased color sequence period on data rendering and reproduction accuracy. We show that Pixcale displays reduce power consumption and provide good image quality for mobile applications.
19.5L: LateNews Paper: A New Advantage of MultiPrimaryColor Displays
Authors: Yoshiyama Kazuyoshi , Furukawa Hiroyuki , Kondo Naoko , Nakagawa Shinji , Yoshida Yasuhiro
Published: October 2010

Image quality improvement for TVs cannot be achieved without improvements on both signal processing and display device approaches. This paper focuses on a MultiPrimaryColor MPC display device, which is one of the most remarkable achievements as a wide color gamut display device in recent years. Then, we report that perceptual resolution on MPC display can be improved with image enhancement of input signal, using a simple simulation.
20.1: SingleSubstrate Cholesteric Liquid Crystal Display by InkJet Printing Liquid PIPS Solution
Authors: Hsu Chen‐Chun , Lu Jhih‐Ping , Chen Fu‐Kang , Lin Yu‐Chun , Lee Yuh‐Zheng , Hsieh ChiaRong , Chang ShuMei , Jhuang Shih‐Hong , Lin TsungHsien
Published: October 2010

This paper provides a photopolymerisation induced phase separation PIPS method for fabricating a bistable cholesteric liquid crystal display. We combine inkjet printing technology and phase separation method producing single substrate sidebyside color cholesteric liquid crystal displays by sequential inkjet printing for each color liquid crystals. The display exhibits an areacolourful image with low switching voltages and can be realized on a large scale and rolltoroll R2R fabrication in the future.
20.3: Full Color Cholesteric Liquid Crystal Display with High Color Performance
Authors: Chen Kuan‐Ting , Liao Yuan‐Chang , Yang Jen‐Chieh , Shiu JyhWen , Tsai Yi‐Shou , Wu Kuan‐Wei , Chen Chih‐Jen , Hsu Chien‐Chih , Wu Cheng‐Chung , Chen WenChih , Chin Chih‐Lung
Published: October 2010

A 10 inch full color cholesteric liquid crystal display ChLCD with high reflectivity and high resolution is demonstrated. This display consists only one ChLC panel which is fabricated by the development of the pixelized vacuum filling PVF technique. The reflectivity of our ChLCD was improved to about 26% with 4bit color, its contrast ration is over 6 and the resolution is 100 ppi.
21.3: Controllable Nano‐Scale Fissure Formation with a Special Conductive Film Structure in Surface‐Conduction Electron‐Emitter Device
Authors: Wu Sheng‐Li , Zhao Ling‐Guo , Xiong Si‐Liang , Zhang Jin‐Tao , Hu Wen‐Bo , Zhang Xiao‐Ning
Published: October 2010

The conductive film with a new special structure for surface‐conduction electron‐emitter device is proposed in this paper. with this new conductive film structure, the formation position of the nano‐scale fissure can be controlled easily, and this will help to improve the uniformity of SED. The effectiveness was proved experimentally.
22.1: Low Power Driving Scheme for High Frame Rate LCD TVs
Authors: Nam Hyoungsik , Park Min‐Kyu , Kim Ah‐Reum , Kim Nam Deog
Published: October 2010

Recently, there have been lots of demands for green products. One of solutions is to reduce the power consumption. Whereas the most approaches in liquid crystal displays (LCDs) are focused on reduction of the backlight power consumption with local dimming technologies, this paper proposes the new low power driving scheme for LCD TV panels operated at high frame rates of 120Hz and 240Hz. Dynamic and static power consumptions have been lowered by means of the frame rate reduction for still input image and fallback and the charge sharing method applied at the vertical blank period. As the maximum, the total power can be reduced to around 50% and 75% for 120Hz and 240Hz.
23.1: Viewing Angle and Imaging Polarization Analysis of Polarization Based Stereoscopic 3D Displays
Authors: Boher Pierre , Leroux Thierry , Collomb‐Patton Véronique , Bignon Thibault , Glinel David
Published: October 2010

In this paper we apply viewing angle and imaging polarimetry to characterize a polarization based stereoscopic 3D display. Viewing angle multispectral polarization analysis is first performed using a Fourier optics instrument. A vertical polarization modulation is observed and explained. Main imperfections come from a polarization degree that reaches only 90% and an ellipticity angle lower than 45° except around 550nm. Viewing angle luminance measurements across glass filters are used to define the Qualified Binocular Viewing Space in front of the display. Then imaging polarimetry is used to detect important spatial inhomogeneities probably related to the quality of the phase shift film. Color shifts are measured and interpreted with regards to polarization multispectral viewing angle measurements. The main sources of imperfections are detected and solutions to improve the characteristics of the displays are proposed.
23.3: Characterization of 3D Image Quality on Autostereoscopic Displays — Proposal of Interocular 3D Purity —
Authors: Horikoshi Tsutomu , Uehara Shin‐ichi , Koike Takafumi , Kato Chiaki , Taira Kazuki , Hamagishi Goro , Mashitani Ken , Nomura Toshio , Yuuki Akimasa , Watanabe Naoko , Hisatake Yuzo , Ujike Hiroyasu
Published: October 2010

We propose “Interocular 3D Purity”; a quantitative measure of the image quality of stereoscopic displays. This measure expresses how well stereopsis‐disturbing images are excluded. We apply this measure to three types of display and find it to be effective in analyzing not only the dimensions of stereoscopic viewing spaces but also the smoothness of motion parallax.
23.4: Qualified Viewing Spaces for Near‐to‐Eye and Autostereoscopic Displays
Authors: Järvenpää Toni , Salmimaa Marja , Levola Tapani
Published: October 2010

In this paper, we discuss the definitions of qualified viewing spaces for autostereoscopic (3D) displays and for closely related near‐to‐eye displays. As the methods and standards for the characterization of new display technologies are evolving, new methodologies need to be validated. We have simulated the effect of different viewing space measurements. In addition, real measurement data of a sample display is presented.
24.3L: Late‐News Paper: In‐Cell Capacitance Touch‐Panel with Improved Sensitivity
Authors: Brown Chris , Kida Kazutoshi , Yamagishi Shinji , Kato Hiromi
Published: October 2010

We present a novel pixel circuit for an in‐cell capacitive type force‐sensitive touch panel. The TFT based capacitance sensor system comprises an active pixel sensor circuit with novel sensing capacitor structure and in‐pixel amplification to achieve a high sensitivity. The observed 8.5x increase in sensitivity over standard methods provides a practical solution to obtain a robust, mechanically compact and low‐cost force sensitive multi‐touch panel.
25.3: The High Performance Scalable Display with Passive OLEDs
Authors: Hara Zenichiro , Maeshima Kazuya , Terazaki Nobuo , Kiridoshi Satoru , Kurata Tetsuyuki , Okumura Takanori , Suehiro Yoshiyuki , Yuki Toshinao
Published: October 2010

This paper describes a newly developed scalable Passive OLED Display System. The display dimension is no longer limited due to the seamlessly linked module structure. In the class of flat displays over 100 inches in dimension, passive OLED offers potentially significantly lighter weight as well as thinner thickness. A new design technology encompasses passive OLED units linked together to form a larger display without showing joint seams. The development also incorporates a technique to equalize individual display panel. A 155 inch (3.93m) prototype using 2,880 OLED panels have been fabricated. The display can offer the clear character and HD‐TV images with wide‐viewing angle.
25.4: High‐Brightness Large‐Area White OLED Fabricated by Meniscus Printing Process
Authors: Oh‐oka Haruhi , Shinjo Yasushi , Sawabe Tomoaki , Sugizaki Tomoko , Amano Akio , Ono Tomio , Sugi Keiji , Takasu Isao , Mizuno Yukitami , Yoshida Jiro , Enomoto Shintaro , Hirao Akiko , Amemiya Isao
Published: October 2010

We demonstrated high‐brightness large‐area, white organic light‐emitting diode (OLED) consisting of printing‐processed organic semiconductor layers. Meniscus printing process was applied to the substrate with 2 μm‐high stripe‐shape auxiliary electrodes. The OLED panel showed white emission all over the whole emitting area of 58 mm × 52 mm, high average luminance of 10,000 cd/m2, luminance uniformity of 40 %, and high luminous flux of 95 lm.
5.1: Purity of OLED‐Materials and the Implication on DevicePerformance
Authors: Becker Heinrich , Bach Ingrid , Holbach Michael , Schwaiger Jochen , Spreitzer Hubert
Published: October 2010

The purity of OLED materials is examined by various analytical tools down to ppm level. Especially halogenated impurities are found to have a significant effect on device performance. HPLC MS coupling methods are needed to identify those harmful impurities. Three case studies are described, but the results are likely to be representative for most classes of OLED materials.
29.4: A RGB‐LEDs Backlight Driver with Field Color Sequential (FCS) and Energy‐Recycling (ER) Techniques for Minimum Power Loss on LCD System
Authors: Huang Ming‐Hsin , Yang Chih‐Yu , Tsai Yueh‐Chang , Hsieh Chun‐Yu , Chen Ke‐Horng
Published: October 2010

A field‐color‐sequential (FCS) LCD technique with a direct‐lit red, green, and blue (RGB) light‐emitting diode (LED) backlight driver is proposed to achieve the demands of weightless, thickness, perfect image‐quality, and low power‐consumption of liquid crystal display (LCD) television (TV). In this paper, the proposed FCS‐LCD controller uses only one single LED driver to alternatively switch driving voltage between 40V for driving 12‐serie G‐ or B‐LEDs and 26V for 12‐serie R‐LEDs. In addition, In order to, the proposed energy‐recycling (ER) technique can harvest the extra energy when the driving voltage switches from 40V to 26V. Experimental result shows the energy‐saving be higher than 17% of the conventional driving method.
30.3: Autostereoscopic Partial 2‐D/3‐D Switchable Display Using Liquid‐Crystal Gradient Index Lens
Authors: Takagi Ayako , Saishu Tatsuo , Kashiwagi Masako , Taira Kazuki , Hirayama Yuzo
Published: October 2010

We developed 12‐inch 9‐view autostereoscopic partial 2‐D/3‐D switchable display using liquid crystal gradient index (GRIN) lens. We simulated optically by the stacked refraction‐index distribution model and optimized liquid crystal (LC) material and electrode structure. The prototype achieved wide viewing angle and good 3‐D image quality with mosaic color filter and vertical lens.
31.1:Invited Paper: A Touching Story: A Personal Perspective on the History of Touch Interfaces Past and Future
Authors: Buxton Bill
Published: October 2010

Touch screens have a 40+ year history. Multi‐touch and some of the gestures associated with it, are over 25 years old. This paper aspires to provide some perspective on the roots of these technologies, and share some future‐relevant insights from those experiences. Since the scope of the article does not permit a comprehensive survey, emphasis has been given to projects and insights that are relevant, but less‐well known.
31.2: Ultra‐Thin High‐Transparency Projective Capacitive Touch Sensing Film
Authors: Kung Chen‐Pang , Hu Guo‐Ren , Chen Yu‐Jen , Liu Chan‐Jui , Tsai Cheng‐Ju , Wang Ming‐Hsi , Wang Pi‐Hsien , Ho Jia‐Chong , Lee Cheng‐Chung
Published: October 2010

An ultra‐thin capacitive touch sensing film is developed using colorless polyimide for large‐area flexible displays. The film thickness is only 20um and transmittance is more than 90%. No degradation in touch sensitivity is observed after bending under 2cm curvature radius for more than 5000 times. Sheet resistance of transparent conductive oxide layer is less than 20Ω/□.
32.2: Electron Transporters Based on Lithium Complexes: Transition from Electron Injecting to Electron Transporting Characteristics
Authors: Kathirgamanathan Poopathy , Arkley Vincent , Surendrakumar Sivagnanasundram , Chan Yun F. , Ravichandran Seenivasagam , Ganeshamurugan Subramaniam , Kumaraverl Muttulingam , Antipan‐Lara Juan , Paramaswara Gnanamolly , Reddy Vanga R.
Published: October 2010

Charge transport and charge balance are critical for achieving high performance and long life time. Thus, electrical, electronic and thermal properties of all the materials have to be optimised There is continuing demand for electron transporters with good hole blocking property and electron injectors for use as individual layers or as admixtures. Most of the commercially employed electron transporters are either based on Al, Zr or Sc or electron deficient compounds based on oxadiazole(s), pyridine(s), phenanthroline(s) or pyrimidine(s). Lithium complexes are used as electron injectors, usually up to 2 nm. At thicknesses above 2 nm, they act as insulators, thus reducing the performance of OLED's. Therefore, they cannot be used as electron transporters where the typical thickness is 20 nm. This paper reports our discovery of unique and novel lithium complex with ligand 2‐(2‐hydroxylphenyl)‐5‐methylbenzoxazole which behaves like an electron transporter rather than an injector. Several complexes of Li, Be, Zn, Al and Zr were made with several hydroxylphenyl benzoxazole(s) and hydroxyphenyl benzothiazole(s)and their properties narrated. Particular emphasis is given to the unusual behaviour of the Lithium compound.
32.4: Quantum Dot Light Emitting Diodes for Full‐color Active‐matrix Displays
Authors: Kazlas Peter T. , Zhou Zhaoqun , Stevenson Matthew , Niu Yuhua , Breen Craig , Kim Sang‐Jin , Stecket Jonathan S. , Coe‐Sullivan Seth , Ritter John
Published: October 2010

Quantum dot light emitting diodes (QLEDs) are a printable thin film electroluminescent technology that delivers exceptional color and efficiency at low cost of manufacture for display and solid‐ state lighting applications. We report on our progress developing efficient, stable QLEDs for full‐color active‐matrix displays, including recent advances in device performance, lifetime and Cadmium‐free QLEDs. Current QLED devices exhibit peak luminance efficiencies exceeding 50 cd/A, luminous power efficiencies greater than 20 lm/W and operational lifetimes exceeding 300 hours at 1,000 nits. Our most recent QLED efficiency results suggest that today's QLED performance is within a factor of two of the theoretical limit.