bluuebunny/crossref_metadata_2025 huggingface dataset:
52‐4: Long‐lived Thermally Stable Blue OLED Achieving BT.2020 Color Gamut
Authors: Hashimoto Naoaki , Takita Yusuke , Yamaoka Ryohei , Nomura Shiho , Sasaki Toshiki , Yamagata Sachiko , Suzuki Tsunenori , Seo Satoshi
Published: June 2017

We developed a deep‐blue fluorescent organic light‐emitting diode (OLED) that is long‐lived and thermally stable. This blue OLED accommodates the BT.2020 color gamut for the first time in the world, and enables a longer lifetime than a conventional one while maintaining comparable power consumption in a full‐color OLED panel.
49‐2: Design of a‐Si:H Bidirectional Gate Driver Circuit Using Time Division Driving Method for In‐Cell Touch Active‐Matrix Liquid Crystal Displays
Authors: Deng Ming-Yang , Tsai Meng-Chieh , Chen Yung-Chih , Chen Po-Syun , Lin Chih-Lung
Published: June 2017

This work presents a new bidirectional gate driver circuit using hydrogenated amorphous silicon (a‐Si:H) thin‐film transistors (TFTs) for applying to in‐cell touch panels. The proposed circuit allows the touch panel to pause the display operation to perform the touch sensing operations to increase the touch reporting rate. Furthermore, the proposed circuit can avoid severe threshold voltage shift (VTH) of driving TFT during the long‐term touch sensing operation, enhancing the reliability of the circuit. Based on the measured electrical characteristics of a fabricated a‐Si:H TFT, the simulation results indicate that the differences of rising time and falling time of output waveforms are less than 8 %.
49‐3: In‐Cell Active Touch Circuit Using a‐Si TFT for Large Size Panel
Authors: Cheu Wei-Jia , Tai Ya-Hsiang , Lin Chi-Hao , Hsiao Pei-Hung
Published: June 2017

In this paper, we present an advanced in‐cell active touch circuit using a‐Si thin film transistors (TFTs) for large size panel. The circuit design is different from traditional mutual‐capacitance and self‐capacitance in‐cell touch panel which are so‐called passive touch circuit. The touch capacitance formed between the touching finger and the common electrode of IPS LC is used to share the charge with the couple capacitance on common electrode. The sensing line is used to sense the current of the active device for different charging status to determine whether an external object are touched or approached.
53‐4: New Analysis Method of Image Sticking of LCD
Authors: Shin Yonghwan , Jung Minsik , Jeon Baekkyun
Published: June 2017

In this paper, we present the new method of analyzing image sticking phenomenon on the liquid crystal display (LCD), which is one of the main problems deteriorating image quality. We have first categorized the main factors of the image sticking and then simulated the proportion of these factors by using the experimental data. We expect that the new analyzing method can be used to understand the basic mechanism of the image sticking and to solve the chronic problem of LCDs.
54‐1: Laser Speckle Reduction using Nanoparticle‐Embedded Liquid Crystals
Authors: Chang Kai-Han , Shiraishi Yukihide , Toshima Naoki , Kobayashi Shunsuke , Furue Hirokazu , Chien Liang-Chy
Published: June 2017

The ability to reduce laser speckle of a nanoparticle‐embedded liquid crystal device with zero‐power consumption is experimentally demonstrated. The scattering profile of nanoparticles smooths out the speckles from laser. The effects from tuning nanoparticle geometry and optical characteristics of liquid crystal host are theoretically evaluated.
54‐2: Invited Paper: Holographic Display and its Applications
Authors: Lee Hong-Seok , An Jungkwuen , Seo Wontaek , Choi Chil-Sung , Kim Yun-Tae , Sung Geeyoung , Seo Juwon , Song Hoon , Kim Sunil , Kim Hojung , Kim Yongkyu , Kim Young , Won Kanghee , Kim Yunhee , Morozov Alexander , Dubinin German , Dubynin Sergey , Lee Sung-Hoon , Park Joon-Yong , Hwang Sungwoo
Published: June 2017

Holographic display is considered as the ultimate 3D technology. However, technical challenges in device capability and computation inhibit its commercialization. This talk addresses several approaches to overcome these challenges.
54‐4: Invited Paper: Projection‐Type Holographic 3D Display
Authors: Wakunami Koki
Published: June 2017

We introduce a projection‐type holographic 3D display in which a digitally designed holographic optical element (DDHOE) fabricated by the wavefront printing technique and digital holographic projection technique were combined. Since this system can achieve a higher degree of freedom of display size and visual angle via see‐through DDHOE screen, it will accelerate the adoption of holographic three‐dimensional displays in industrial applications, such as digital signage, in‐car head‐up displays, smart‐glasses and head‐mounted displays.
55‐3: Invited Paper: Delivering Content for HDR
Authors: Brendel Harald
Published: June 2017

In 2016, every major manufacturer revealed High Dynamic Range (HDR)‐compatible TVs. The technology promises a major improvement of the quality of images delivered to consumers. The goal of HDR technology is not to simply increase the contrast of existing images but to display more tonal details in the shadows and highlights. In combination with higher brightness levels and a larger color gamut, more realistic and captivating images are created.

Current industry standards demand a contrast of 20000:1 or better for HDR displays opposed to about 1000:1 for traditional displays. This raises the requirements for the dynamic range of cameras used to produce HDR content. The ARRI ALEXA camera, released in 2010, is based on a sensor that has a dynamic range (ratio of full‐well capacity to read‐out noise) of approx. 30000:1. This very high range is achieved by a combination of a dual‐gain pixel architecture and an elaborate sensor calibration procedure. Without effective correction of nonuniformities, the usable dynamic range of the complete sensor may be less than the dynamic range of its single pixels. While existing workflows in motion‐picture and digital video are suitable to produce HDR content there are no well‐established procedures for the evaluation of the performance of digital cameras. An outline of such a procedure is proposed.
56‐1: Novel Cover Glass for Fingerprint Authentication
Authors: Ozeki Masao , Kanasugi Satoshi , Hatano Maya , Sano Makoto , Sekiya Kaname , Eto Takashi
Published: June 2017

Novel cover glass for fingerprint authentication has been developed with a recessed area. Because fingerprint authentication sensor needs to shorten the distance between the sensor and the fingerprint. But it had two problems which are the surface strength of recessed area and the warpage of recessed area after chemical strengthening. The two problems have been solved by optimizing product process and using chemical strengthening simulation model.
56‐2: Optical Touch Screen Integrated With Fingerprint Recognition
Authors: Ma Ping , Cao Wensheng , Zheng Shuyu , Cui Xuecheng , Guo Lindong , zheng Jun , Ye Zhicheng
Published: June 2017

An optical touch panel integrated with fingerprint recognition function has been proposed and confirmed. Through tactical design with slanted grating and appropriate pitch, efficient coupling of waveguide mode for touch sensing and sufficient non‐overlapping area for fingerprint detecting were obtained simultaneously, meaning great potential for intelligent touch devices.
61‐3: Glasses‐Free 2D/3D Switchable Display Using a Trapezoidal Light‐Extraction (TLE) Film on the Light‐Guide Plate
Authors: Lee Jin-Ho , Choi Yoonsun , Yanusik Igor , Morozov Alexander , Kang Byongmin , Hwang Hyoseok , Lee Seok , Heo Jingu , Nam Dongkyung , Park Du Sik
Published: June 2017

A 2D/3D switchable display using a trapezoidal light‐extraction (TLE) film, which can be attached to the backside of an LCD panel on the 3D light‐guide plate (LGP), was designed and fabricated. The 3D image quality was maintained by a tightly controlled, uniform gap between the LCD panel and the 3D LGP. By applying two types of TLE films, 18.4‐ and 10.1‐inch prototypes were constructed. Eye‐tracking‐based light‐field 3D and 2D display images without interference artifacts between both modes were demonstrated.
57‐1: Invited Paper: Ink‐Jet‐Printed OLED Displays
Authors: Böhm Edgar , Levermore Peter , Tseng Hsin-Rong , Bealle Gaelle , Wang Hsing-Ju , Hibon Pauline , Heil Holger , Jatsch Anja , Buchholz Herwig
Published: June 2017

We report the performance of inkjet printed red, green and blue OLEDs, with focus on transition from evaporated blue common layer to printed blue panel design. Printed OLED device efficiencies and colors are reported, and we demonstrate that in these metrics, printed red, green and blue OLEDs are now comparable to state‐of‐the‐art vapor‐processed devices.
62‐2: Invited Paper: Measurement of Visual Resolution of Display Screens
Authors: Becker Michael E.
Published: June 2017

This paper explains and illustrates the meaning of luminance modulation (aka Michelson contrast) of visual display screens as basis for the perception of presented visual information and as basis for objective visual performance evaluation and rating of display screens according to the 2016 IDMS updates.
62‐3: Recent Achievement in IEC TC 110, Electronic Display Devices. ‐ Reflecting Fast Moving Market ‐
Authors: Hyodo Kei , Wang Baoping , Shibahara Yoshi , Uehara Shin
Published: June 2017

Display market is moving very fast, yet, until now, often International Standardization body, such as IEC may not move as quickly as the market does. In order to change that situation, we, IEC TC 110 handling electronic display devices, started changing our way of handling international standards, focusing more market oriented. We would like to explore in which way we are changing our way and how we could achieve that change. And, we would like to discuss how we could make this better to work with the market more closely. Furthermore, there are several new remarkable new standards are published.
67‐3: Wide‐Viewing‐Angle Band‐Pass Reflective Polarizer for Wide‐Color‐Gamut LCDs
Authors: Akahane Kunihiko , Shibata Yosei , Ishinabe Takahiro , Fujikake Hideo
Published: June 2017

We have designed a novel band‐pass reflective polarizer on the bases of the analyses of propagation matrix by the Interference Included 2×2 Jones Matrix Method. The FWHM of transmission band is 4nm for incident light from 0° to 20° and successfully achieved wide color gamut covering Rec. 2020 color space for UHD TVs.
63‐2: A Novel Touch‐control Method with Partial Scanning for LC, OLED, and Hybrid Displays using an Oxide Semiconductor
Authors: Takahashi Kei , Kusunoki Koji , Watanabe Kazunori , Okano Tatsuya , Suematsu Yui , Ikezoe Satoshi , Hatsumi Ryo , Misawa Chieko , Dobashi Masayoshi , Nakada Masataka , Katayama Masahiro , Yamazaki Shunpei
Published: June 2017

A touch‐control method using partial scanning is devised for various displays using an oxide semiconductor in their backplanes. This method enables sensing results by long‐term consecutive touches to be displayed in real time, offering features of idling stop driving with low power consumption and high sensing accuracy.
67‐4: Wide‐color‐gamut LCDs with Vivid Color LED Technology
Authors: Wyatt David , Chen Haiwei , Wu Shin-Tson
Published: June 2017

A Vivid Color LED with an ultra‐narrow emission bandwidth (FWHM ~ 10 nm) has been developed. Using this LED backlight for a conventional TFT LCD, we can achieve 97.8% Rec. 2020 in CIE 1976 color space. The new LED has tuneable emission characteristics, recycles light for improved power efficiency, and leverages existing LED and phosphor manufacturing processes for lower cost, and long lifetime. Widespread application in other displays, and lighting are foreseeable.
68‐1: A 3D Augmented Reality Training System for Endoscopic Surgery
Authors: Wang Rong , Geng Zheng , Meng Xiangbing , Pei Renjing
Published: June 2017

We propose a 3D augmented reality (AR) system for perception training on the ablation of tumor inside the kidney. The system consists of a region‐based visual tracking for localizing kidney and tumor and a 3D display for visualizing AR results. We also integrate a virtual instrument in the system.
69‐2: Novel Approach for Reducing Luminance Gap between Adjacent Modules in OLED Video Wall System
Authors: Kang Bongseok , Park Jeonghyo , Song Jaeyeon , Park HwakDong , Kim HanSeop , Oh ChangHo
Published: June 2017

In video wall application, OLED has a ‘luminance gap between adjacent modules’ problem which originated from the characteristic of the self‐luminous display. This paper suggests a novel method which applies local gain to displayed image to minimize luminance difference between adjacent modules with minimum loss in the video wall system.
69‐4: Active Backplane Design for Digital Video Walls
Authors: Dykaar Douglas R. , Tarighat Roohollah Samadzadeh , Chen Feng , Davidson-Hall Tyler , Hill Graham , Vieth John , Brown Chris , Aziz Hany , Sivoththaman Siva
Published: June 2017

We report on the design of a scalable active backplane for digitally driven video wall displays. The substrates use single‐crystal silicon spheres which are embedded in ceramic and planarized.
70‐2: ZnO Nanorods Array Fabricating on Conductive And Transparent Gallium‐doped ZnO Substrates for Sensing Application in Display
Authors: Li Chaoyang , Hou Shengwen , Nitta Noriko , Makino Hisao
Published: June 2017

High transparent and conductive gallium‐doped ZnO thin films, as an alternative material of ITO, were prepared on glass substrates by radio frequency magnetron sputtering, on which ZnO nanorods were fabricated with vertically array and controllable morphology. The ZnO nanorods exhibit highly potential for sensing application in the future display.
70‐4L: Late‐News Paper: Large‐Area Single‐Layer Capacitive Touch Panel
Authors: Blush Jason , Chase Wes , den Boer Willem , Bulea Mihai , Day Shawn , Hovden Bjorn , Hsu Andrew
Published: June 2017

A 13 inch x 22 inch capacitive touch panel is presented with a single pattern transparent conductor. The touch panel uses a gradient sensor design enabled by a low haze, silver‐based transparent conductor with a sheet resistance of 7 ohm/sq that allows for scaling to larger sizes. The transparent conductor is patterned by laser ablation. The touch panel glass is one of two glass substrates in a rugged, laminated assembly.
71‐1: Invited Paper: The Challenges of Flexible OLED Display Development
Authors: Kao Shan-Chen , Li Liang-Jian , Hsieh Ming-Che , Zhang Song , Tsai Pao-Ming , Sun Zhong-Yuan , Wang Da-Wei
Published: June 2017

Flexible OLED display would be one of the most popular display type in the future. However there are many challenges before the mass production ability matured. Flexible substrate preparation, Lower temperature w/ LTPS (L‐LTPS), thin film encapsulation and flexible module process are discussed separately in this paper. The difficulties of each process were pointed out and provide some solution for reference. We improve and apply the solution in our 4.35”~10.9” flexible OLED sample.
71‐2: New Technology of Improving Blackness for OLED TV
Authors: Noh Hyun-Jong , Ahn Chi-Myung , Ko Tae-Woon , Lim Chung-Sun , Choi Sang-Ho , Shin Young-Hoon , Kim Jin-Mog , Jun Myung-chul , Oh Chang-Ho , Kang In-Byeong
Published: June 2017

OLEDs have excellent ambient contrast, because OLEDs with a circular polarizer can effectively reduce the reflectance caused by external light. However, for better blackness, it is necessary to improve reflectance and reflection color. By applying new material, blackness of OLED TV is improved.
72‐2: A High Resolution Near Eye Light Field Display with Fast Reconstruction Speed
Authors: Liu Mali , Lu Chihao , Li Haifeng , Liu Xu
Published: June 2017

We proposed an acceleration of reconstructing a high resolution near eye light field display based on human visual features. The reconstructed light field supports high resolution, low‐latency and focus cues. The resolution distribution of the light field is identical to human visual features that visual acuity is different over field of visual.
72‐3: Design Investigation of Tunable Liquid Crystal Lens for Virtual Reality Displays
Authors: Jamali Afsoon , Bryant Douglas , Zhang Yanli , Grunnet-Jepsen Anders , Bhowmik Achintya , Bos Philip
Published: June 2017

We have previously proposed that a tunable liquid crystal (LC) lens is a simple solution for the accommodation‐convergence issue in virtual reality (VR) systems. In this study we numerically and experimentally investigate the most important parameters in the lens design with main focus being the effect of Fresnel resets on the image quality of the lens.
73‐2: Invited Paper: Active Switching LCP‐based Microlens Arrays for 3D Display and Imaging Applications
Authors: Park Min-Kyu , Joo Kyung-Il , Park Heewon , Jeong Hee-Dong , Kim Hak-Rin
Published: June 2017

We demonstrate a well‐aligned polarization‐dependent reactive mesogen (RM) microlens array with small f‐number and small pitches by using a top‐down alignment method. By using the polarization dependent RM lens array with the small f‐number, the small pitch, and the fast switching property, we realized a 2D/3D switchable portable three‐dimensional (3D) display and imaging system with 2D/3D switching function. In addition, the 3D viewing parameter such as 3D image resolution, viewing resolution were improved by utilizing a time‐multiplexing method with specially designed polarization‐dependent RM microlens arrays.
67‐2: Invited Paper: Ambient Processing of Quantum Dot Photoresist for Emissive Displays
Authors: Lee Ernie , Kan Shihai , Hotz Charlie , Yurek Jeff , Luo ZhongSheng , Kim Heejae , Yamanaga Jay , Carpenter Amanda
Published: June 2017

Moving the light conversion by quantum dots (QDs) from the backlight to the front of the LCD has the potential to further improve both the overall efficiency and color gamut of the display. In order to accomplish this change of architecture, the QDs have to be patterned at the sub‐pixel pitch of the display. This requires the QDs to be integrated into a photoresist at high concentration in order to produce pixels of the required size and optical density. Here we report on our fabrication and characterization of red and green QD photoresist, as well as how we model its performance in displays.
73‐4L: Late‐News Paper: Wavelength‐independent Electrically Tunable Microlens Array with a Chiral Nematic Liquid Crystal
Authors: Chang Kai-Han , Hsieh Po-Yuan , Huang Yi-Pai , Chien Liang-Chy
Published: June 2017

A liquid crystal microlens array (LCMLA) with a chiral nematic liquid crystal material in twisted vertical alignment configuration is demonstrated. The proposed LCMLA has merits of low operation voltage and wavelength‐independent, electrically‐tunable focal length, which are suitable for full color 3D microscopy and endoscope application.
74‐3: Development of New Error‐Diffusion Dithering Method for Reflective Memory‐In‐Pixel (MIP) LCD
Authors: Ozaki Tadafumi , Sako Kazuhiko , Harada Tsutomu , Takasaki Naoyuki
Published: June 2017

We have developed an error‐diffusion dithering method for a reflective MIP LCD to provide a high‐quality moving image. We have restricted error diffusing area within several segments defined on the image without deterioration of the image quality, and successfully resolved the fluttering problem in moving image.
77‐1: Invited Paper: Ultra‐low Power OLED Microdisplay for Extended Battery Life in NTE Displays
Authors: Vogel Uwe , Beyer Beatrice , Schober Matthias , Wartenberg Philipp , Brenner Stephan , Bunk Gerd , Ulbricht Steffen , König Peter , Richter Bernd
Published: June 2017

Most of the current OLED microdisplays on the market have been designed for full‐video, i.e., high‐frame rate capability. However, specifically augmented‐reality (AR) near‐to‐eye (NTE) applications regularly demand long battery life above full‐frame rate. This is to report on a new backplane architecture combined with highly efficient OLED to achieve significantly reduced power consumption.
75‐3: Reducing Glare from Reflected Highlights in Mobile and Automotive Displays
Authors: Ward Gregory , Yoo Hyunjin , Soudi Afsoon , Akhavan Tara
Published: June 2017

We present a method for determining the positions and intensities of reflections as they appear to a user on a glass display, using on a front‐camera video feed. From these predicted highlights, we modify displayed content to overcome glare and improve image appearance for mobile and automotive applications.
77‐4: A 2.78‐in 1058‐ppi Ultra‐High‐Resolution OLED Hybrid Display using Oxide Semiconductor/Oxide Conductor (OS/OC) Pixel (Transparent Pixel) achieving High Aperture Ratio
Authors: Yokoyama Kohei , Nagata Takaaki , Sakuishi Tatsuya , Nakano Masaru , Miyairi Noriko , Yamashita Akio , Jimbo Yasuhiro , Shishido Hideaki , Ishitani Tetsuji , Dobashi Masayoshi , Nakazawa Yasutaka , Nakada Masataka , Koezuka Junichi , Yamazaki Shunpei
Published: June 2017

We prototyped a 2.78‐in 1058‐ppi OLED hybrid display. We employed an oxide semiconductor/oxide conductor (OS/OC) pixel (transparent pixel). In OS/OC pixels (transparent pixels), FETs, wirings, capacitors, and contact portions are transparent, achieving a high transmission area ratio of 66%.
78‐1: The Study of Motion Blur Behavior in the Strobe Backlight LCD for Virtual Reality Application
Authors: Li Chang-Hung , Lu Ssu-Hui , Hsieh Tsung-Ying , Wang Ko-Shun , Kuo Wei-Hung , Lee Ming-Hsien
Published: June 2017

In this paper, we discussed the motion blur behavior relates to MPRT in the strobe backlight LCD for the VR application. The specific equal‐intensity band was observed and was explained by the temporal integration model. After optimizing the flash timing of backlight, less than 4 ms of MPRT was measured in our ultra high resolution LCD.
80‐2: Evaluation of Displays and HMIs for Internet of Things (IoT)
Authors: Sabo Julia , Fegert Tobias , Cisowski Matthäus Stephanus , Marsal Anatolij , Eichberger Domenik , Blankenbach Karlheinz
Published: June 2017

We studied low cost Internet of Things (IoT) systems with displays regarding microprocessor (μP) interfaces (parallel or serial). An evaluation was made by comparing status indicators, character and graphics display regarding Human Machine Interfaces (HMI). We also measured and compared displays ambient lighting performance in typical IoT environments.
80‐3: Design of Spatial Light Modulator on Glass using Oxide TFTs with Lower Off‐state Current
Authors: Pi Jae-Eun , Choi Ji Hun , Hwang Chi-Young , Yang Jong-Heon , Cho Sung Haeng , Kim GiHeon , Kim Yong-Hae , Kwon Oh-Sang , Kim Hee-Ok , Park Eun-Suk , Hwang Chi-Sun
Published: June 2017

We designed the spatial light modulator (SLM) on a glass (SLMoG) for holographic display. The lower off current of the pixel switch TFT is important to realize small pixel pitch for ultra‐high PPI in display panel. A 2 um channel length ITZO TFT with low off current was used for a pixel switch TFT of SLMoG. We demonstrated 1.87 inch SLMoG panel with the pixel pitch of 7 um and 5760×1080 resolution.
P‐9: Parylene / Al2O3 Double Layer Passivated Amorphous InGaZnO Thin‐Film Transistors
Authors: Zhou Xiaoliang , Wang Gang , Shao Yang , Zhang Letao , Lu Huiling , Chen Shuming , Han Dedong , Wang Yi , Zhang Shengdong
Published: June 2017

Amorphous InGaZnO thin‐film transistors (a‐IGZO TFTs) passivated by parylene / Al2O3 double layer are fabricated. The parylene layer prevents the channel layer from ion bombardment during Al2O3 sputtering. Al2O3 blocks O2 and water effectively. It is shown that a‐IGZO TFTs with the proposed passivation are stable in the ambient atmosphere.
81‐3: Reproducing High Dynamic Range Contents Adaptively based on Display Specifications
Authors: Zhu Ruidong , Sarkar Abhijit , Emerton Neil , Large Tim
Published: June 2017

We developed a new approach to display HDR contents on both HDR and SDR displays. A 12‐bit HDR display is built up to test the algorithm. We have also conducted psychophysical experiments to determine how much dynamic range is needed to make the SDR display resembles the HDR display.
82‐2: Glass Substrate with TGV(Thru Glass Via) Manufacturing Technology for Display Electronics
Authors: Kuramochi Satoru
Published: June 2017

As electronic display product becomes thinner and wider with an increasing number of function, the demand for high density and high integration becomes stronger. On the other hand, glass has many properties that make it an ideal substrate for electronic substrates such as; ultra high resistivity, adjustable thermal expansion (CTE) and manufacturability with large panel size. Furthermore, glass via formation capabilities has dramatically improved over the past several years. Fully populated wafers with >100,000 through holes (50 μm diameter) are fabricated today with 300 μm thick glass. This paper presents the demonstration of glass panel substrate with fine pitch metalized through via for Display Electronics. The application of glass panel substrate requires ultra‐fine line and space 2/2um. A semi‐additive process consisting of copper seed layer deposition, photo‐lithography, and electrolytic copper pattern plating used for RDL. High frequency transmission characteristics were measured with TGV co planer wave guide. Glass panel substrate with plated via demonstrated on 300x400mm panel format. Twin types of Cu plating method with through via, full filling plating and conformal plating are compared with process capability using X ray observation. Electrical characteristics are measured with daisy chain test elementary vehicle. Excellent through via reliability was demonstrated at 200um pitch passed 1000cycle from ‐40 cereuses deg. to 80 cereuses deg.
82‐4: Mechanics of Ultra‐slim Television Sets with Glass Light Guide Plate
Authors: Burdette Steve , Joshi Dhananjay , Tremper Amber , Vepakomma Hemanth
Published: June 2017

The demand for compact and rigid back‐light unit is growing as the television sets are getting thinner and larger. The glass light guide plate (LGP) is suitable for such applications owing to its higher bending stiffness, and low thermal and moisture expansion over its plastic counterpart. Numerical simulations and experiments suggest that the rigidity of TV sets can be improved with partial lamination of glass and back‐channel without compromising the optical performance.
P‐17: Mutual Interaction of Voltage between Top Gate and Bottom Gate for a‐IGZO TFT
Authors: Gu Pengfei , Chen Jiangbo , Xie Dini , Liu Wei , Liu Fengjuan , Sun Hongda , Song Young Suk , Yan Liangchen , Wu Zhongyuan
Published: June 2017

In this paper, the mutual interaction of gate voltage between top gate and bottom gate in a‐IGZO TFT was investigated. The Vth of top gate (or bottom gate) show a parallel shift with the change of bottom gate (or top gate) voltage. The magnitude of Vth shifts can be described by some approximate analytical expression.
P‐6: The Effects of Buffer Layers on the Electrical Characteristics and Stability of Self‐Aligned Top‐Gate IGZO Thin Film Transistors
Authors: Ho Yi-Da , Yang Yu-Xin , Yang Ching-Fei , Li Hung-Wei , Tsai Chih-Hung , Lu Hsueh-Hsing , Lin Yu-Hsin
Published: June 2017

The composition of buffer layer would be played a key role to affect the electrical performance and the reliability of the self‐aligned top‐gate a‐IGZO TFTs. In this work, the threshold voltage shift (ΔVth) of the device could be less than ±1V under positive and negative bias thermal illumination stress.
P‐27: A Narrow Bezel a‐Si TFT LCD with Vertical Gate Line in Pixel
Authors: Hashiguchi Takafumi , Hirata Naoya , Baba Tatsuya , Tanahara Manabu , Hirosue Miyuki , Tanina Osamu
Published: June 2017

We have developed a new narrow bezel a‐Si TFT LCD, without a gate driving circuit in panel, with equal to or less than 1 mm panel bezel. Moreover, we could obtain 14"FHD (1920x1080) a Si TFT panel by our countermeasure against signal delay. All of the above has been proved in our simulation.
P‐29: Flexible Gate Driver for Bendable AMOLED Display with Homojunction Oxide TFTs
Authors: Um Jae Gwang , Geng Di , Jeon Jae Kwon , Chen Yuanfeng , Mativenga Mallory , Jang Jin
Published: June 2017

A high performance gate driver with 50 μm‐pitch is demonstrated by utilizing homojunction oxide TFTs on plastic substrate. The gate driver is robust under the bending and thus withstands 100,000 times bending under the radius of 1 mm. Therefore, the gate driver can be used for a bendable AMOLED.
P‐30: Novel Vth Compensation LTPS Pixel Circuit for AMOLED
Authors: Sano Keiichi , Tang Shibin , Nishikawa Ryuji
Published: June 2017

A new pixel circuit for active‐matrix organic light‐emitting diode (AMOLED) was simulated by using novel 3 thin‐film transistors (TFTs) circuit in each pixel. It may feature good brightness uniformity by using threshold‐voltage (Vth) programming compensation circuit. Less number of TFTs in each pixel (3 TFTs) has big advantage for the real RGB high resolution AMOLED display.
P‐33: High‐Mobility CdSe Thin‐Film Transistors and Circuits by Sol‐gel Method
Authors: Kwon Sung Min , Kim Myung Gil , Jung Su Min , Park Sung Kyu
Published: June 2017

We exploit large‐area and high‐performance solution‐processed CdSe thin‐film transistors (TFTs) and 7‐stage ring oscillators. A CdSe thin‐film was successfully demonstrated using relative low temperature (<400 °C) sol‐gel processing via organoselenide and cadmium precursors. A CdSe thin‐film from commercial organic solvent process was used for active layer of thin‐film transistors and integrated circuits which demonstrate electron saturation mobilities exceeding 152 cm2/V‐s and frequency of 1 MHz in 7‐stage ring oscillators on borosilicate glass substrates.
P‐45: Gate Driver Circuit with Pre‐bootstrapping Using Organic TFTs
Authors: Kim Jin-Ho , Wang Sihan , Oh Jongsu , Park KeeChan , Kim Yong-Sang
Published: June 2017

In this paper, a new gate driver with pre‐bootstrapping using a p‐type OTF is proposed. In order to overcome the low mobility of OTFT with BC structure, a two‐step surface treatment using HMDS & PEDOT:PSS is used for OTFT fabrication. The fabricated p‐type OTFT has electrical properties such as a threshold voltage of ‐1.4 V, and a field‐effect mobility of 0.31 cm2/(V•s). We present a new gate driver with an enhanced rise and fall time of VOUT by Q node voltage increase. The simulation is applied by the measurement data of the OTFT with BC structure, simulation results verify the feasibility for driving characteristics.
P‐222L: Kim Late‐News Poster: Fabrication of Nitrocellulose based Organic Material as a Gate Dielectric Layer for Oxide Thin Film Transistor
Authors: Kim Won-Gi , Tak Young Jun , Kim Yeong-gyu , Chung Jusung , Kang Byung Ha , Kim Hyun Jae
Published: June 2017

We proposed a novel organic material, named collodion, as a gate dielectric layer for amorphous indium gallium zinc oxide thin film transistor. The collodion was fabricated at low temperature (125°C) and had superior dielectric characteristics (10-10A/cm2 at 50 V) and dielectric constant (~6.57) for gate dielectric layer.
P‐34: Compare and Model Multi‐level Stereoscopic 3D Visual Fatigue Based on EEG
Authors: Yue Kang , Wang Danli , Hu Haichen , Yang Xinpan , Chiu Steve C.
Published: June 2017

In this paper, we designed an experiment to observe changes for different fatigue level in human brain when watching random dot stereogram (RDS) using the method of EEG. The subjects were asked to watch 3D content for 30 minutes and the disparity of RDS changed every 10 seconds. During this watching task, subjects should rate their extent of fatigue during the experiment on the scale of one to five only when they felt worse or better. 30 channels electroencephalogram (EEG) signals were recorded through the experiment. Finally, the relationship between various fatigue levels and disparities which revealed by EEG signals were investigated. Our results show that the power of waveband, namely alpha increased with the fatigue level increasing from one to four during watching RDS, but decreased in level five. We have employed logistic regression to model fatigue level and achieved classification accuracy of 94.18%. Our research has important implications for the continuous monitoring of user's fatigue in the future.
P‐36: Evaluate Fatigue of Blue Light Influence Under General LCD, Nice blue LCD Displays
Authors: Chen Yi Lin , Zhang Yun Hong , Jia Liu , Yong Yang , Yang Ying Bao , Xu Pan
Published: June 2017

This study adapted a visual search task to examine the fatigue and comfort status after using different blue light wavelength controlled displays. The results showed that users felt less fatigue and more comfort physiologically and psychologically under the nice blue LCD display. Blue light wavelength beyond 455 nm is good to provide a safer display products to end users.
P‐37: A Study on the Correlation Between the Human Visual System and the Contrast Modulation in an UHD Display Resolution
Authors: Kim Bo-Sang , Park Seung
Published: June 2017

This paper presents the correlation between the human visual system (HVS) and the pixel rendering system of the ultrahigh definition (UHD) display panel. First, we review the cycle per degree (CPD) and contrast sensitivity (CS), which are the most important factors of the HVS, and then we study how humans recognize the UHD display resolution using these factors.
P‐41: Development of High Luminance Curved Backlight Modules for Automotive Display Applications
Authors: Xin Gai , Fei Dong , Dong Cui , Lingyu Sun , Xiuyun Chen , Yoon D.K , Miao Liu , Qing Ma , Liang Zhang , Zongze He , Fei Liang , Liyu Fang , Jingjun Du , Dake Wang , Zheng Wang , Rui Han , Baocheng Huang
Published: June 2017

In this paper, we discuss an implementation method to get high brightness and curved BLU. For 8.0inch TFT‐LCD, by using the high gain film structure, particular structure surface LGP & high efficiency LED, driving with higher current, we achieve the high brightness backlight unit (BLU), which gets the brightness of 38000nit with DBEF (a reflection type polarizing film); In this paper, we also introduce a particular design, which is consist of radiating and curved structure. Radius of outer convex surface is 800milimeter, leading to the horizon angle of rear mirror expanding by about 187%, so it realizes the function of wide view mirror.
P‐223L: Late‐News Poster: New Head‐Up Display System with Ultrahigh Transmittance Using LCs with Negative Dielectric Anisotropy and RGBW Design
Authors: Fang Liting , Chen Jianqun , Chen Yucheng , Huang Min , Chen Zhonghuai , Liu Yuanming , Huang Qiangcan , Liu Xiaoli , Zheng Lihua , Li Qian , Ling Ankai , Wu Ling , Shen Poping , Li Junyi , Tseng Changho
Published: June 2017

We have developed a novel head‐up display (HUD) system with 13.7% transmittance by combining RGBW design, LCs with negative dielectric anisotropy and local dimming backlight. With high transmittance, high contrast ratio and low power, the newly designed HUD system could be more suitable for automotive vehicles.
P‐53: A Novel Pixel Circuit Providing Expanded Input Voltage Range for OLEDoS Microdisplays
Authors: Liu Binjie , Ding Dedong , Zhou Tianyu , Zhang Min
Published: June 2017

A novel pixel circuit providing expanded data voltage range is proposed for high resolution and high image quality organic light‐emitting diode‐on‐silicon (OLEDoS) microdisplay applications. The proposed pixel circuit adopts a structure of four series connected NMOSFETs (4‐SCN) to expand the input data voltage range, within which the circuit operates in the subthreshold region. In addition, the pixel circuit has improved image quality by introducing a compensation scheme. The proposed circuit is verified by the simulation based on a 0.18 μm BCDlite Isolation process. The proposed circuit can be integrated into a unit sub‐pixel area of 2.9 × 8.7 μm2. The simulation results show that the input data voltage range of the proposed pixel circuit is 6.26 times wider than that of the traditional 2T1C pixel circuit [1], which is 4.42V. And the emission current deviation ranges from ‐4.7% to +4.2% under the threshold voltage variation of ±5 mV, which is 31.01% for a traditional 2T1C pixel circuit [1].
P‐54: A High‐Voltage Analog Adder Based on Class‐B Amplifier for Source Driver of AMOLED External Compensation Scheme
Authors: Wang Cuicui , Lam Hing-Mo , He Xiaolong , Lu Wengao , Zhang Shengdong
Published: June 2017

This paper presents a high‐voltage analog adder with only four high‐voltage transistors for source driver of AMOLED displays. It has high drive speed and voltage accuracy, and provides enhanced capacitance drive capability under a small quiescent current by exploiting two current comparators incorporated into differential amplification stage of class‐B amplifier.
P‐58: Fabrication of Flexible Transparent Electrodes by Using Field‐Assisted Nanowire Chaining
Authors: Sam Mahshid , Alsaif Jehad , Bhiladvala Rustom B.
Published: June 2017

High‐performance transparent electrodes (TEs) can be made from nanowires. A simple fabrication technique is required to meet market requirements such as flexible, large‐size, and low‐cost devices. We proposed field‐assisted nanowire chaining, a fabrication technique compatible with both rigid and flexible substrates. We demonstrate TEs with 96% transparency and Rs=18 Ωsq‐1.
P‐59: Analysis of Ink‐Jet‐Printing Mura in the PI Film on TFT‐LCDs
Authors: Ma Guojing , Song Yongzhi , Wang Dan , Ren Jinyu , Xu Changjian , Wang Shoukun , Wang Qi , Zhou Bo , Chen Huabin , Zhang Liang , Shao Xibin
Published: June 2017

Inkjet Printing Mura in Polyimide (PI) Film process for high resolution panel is discussed. In this paper, we investigated the origin of injet printing mura from aspects of the array substrate and the inkjet process. According to our experiments, step‐structure edge of via hole and the maximum dot pitch between PI drops could reduce the ratio and degree of inkjet printing mura effectively.
P‐60: Implementing Narrow Bezel Design through Black Sealant
Authors: Lim JiWon , Hong SangPyo , Kang DongWoo , Choi YoungSeok , Shin SangMun
Published: June 2017

To reduce the size of the bezel, it is necessary a Black Sealant that can be UV cured by C/F glass. The Optical density of the Black Sealant should be 0.4/um or more to blocking circuit pattern reflection and glare. In this study, we examined the risk of curing Black Sealant.
P‐67: An Analytical Method of Small‐Sized Module Waving Based on the Finite‐Element Simulation
Authors: Zhang Bingchuan , Zheng Yingbo , Lin Yanfeng , Zhou Gege , Lv Chengling
Published: June 2017

The film waving is a serious issue during design and experiment. Generally we have to change the design and do reliability experiments repeatedly. Based on finite element thermo‐mechanical coupling simulation, this paper presents a method to find the influencing factors and quantify the criteria of waving.
P‐69: Leaked Light Field: The Design Method for Natural Material to Display Surface
Authors: Takazawa Kazuki , Suzukiy Kenta , Ochiaiz Yoichi
Published: June 2017

In this paper, we will take a section on the design method for blending the display into everyday materials that could not be realized with conventional displays. Due to popularization of IoT in recent years, the use scene of display has been greatly expanded. Meanwhile, as for the material of the surface of the display, transparency and smooth things such as glass and plastic have been limited for a long time. In this paper, we aimed to improve weak points in the design aspect of display.
P‐71: Cost Analysis of a‐Si and Organic Semiconductor Based TFT Backplanes for FPDs
Authors: Annis Charles A.
Published: June 2017

Detailed cost modeling confirmed that organic TFTs have higher costs than a‐Si arrays in low volume; however, in mass production material costs fall to comparable levels. On fully depreciated assets, organic TFT costs will be 20% lower. This creates an opportunity for organic TFTs to gain share in the growing flexible display market.
P‐72: Invar Fe‐Ni Alloy Metallization by Electroless Plating for TFTs
Authors: Yamamoto Takayo , Nagayama Tomio , Nakamura Toshihiro
Published: June 2017

We prepared an Fe‐Ni alloy film with a CTE equivalent to that of glass substrate for TFT using electroless plating. The electroless deposited Fe‐Ni alloy films with Fe contents of 55 and 64 wt% in the invar composition range had CTE values of 8 ppm/°C which is lower than that of Ni films and comparable with that of glass substrate.
P‐74: Optically Clear DLC for Protecting Electronic Displays
Authors: Demtchouk Alexander , Aggarwal Anuj , Bluck Terry , Kudriavtsev Vladimir , Mandrell Lisa , Johnson Paul Markoff
Published: June 2017

Scratched and damaged smartphone displays have become an all too familiar part of the contemporary landscape in today's connected world. But why don't display screens last, and what can be done to improve their life? In a world prone to abrasive encounters and occasional hard knocks, Diamond‐like Carbon (DLC) nano‐layers, films historically known for endowing various physical protection benefits on contact surfaces [1, 2], have been developed by Intevac, Inc., to provide enhanced scratch and breakage protection for electronic displays while retaining the same optical clarity and pleasing color rendition of untreated displays. Intevac calls this optical Diamond‐like Carbon, (oDLC®). We will present notable oDLC film characteristics, general benefits that come from using the film and the INTEVAC VERTEX™ sputtering deposition system in which oDLC is deposited.
P‐80: A Study about the Metal Corrosion and Diffusion Phenomenon in Cu‐Mo Dual Layer Metal Wires for TFT‐LCDs
Authors: Wu Yue , Li Shan , Ge Shimin , Xiong Yuan , Jiang Chunsheng
Published: June 2017

Due to the low resistance and excellent glass adhesion, Cu/Mo dual‐layer metal wire has been widely used in TFT‐LCD industry. However, the galvanic reaction between the two metals, which may be the main cause of metal corrosion and diffusion in some failure TFT devices, has been seldom reported. According to the detailed study of the wet and rinse process, this work proposes a possible corrosion mechanism.
P‐81: Influence of Photo‐Spacer Ratio on Yellow Spots and Ripple on a 5.5‐in. Halftone‐Mask Panel
Authors: Chen Caiqin , Chen Lindou
Published: June 2017

We conducted experiments to test the influence of photo spacer PS on yellow spot and ripple. Results showed that the severity level of yellow spot and ripple can be lessened when main PS ratio reached more than 0.1%. Additionally, other PS parameters were further discussed.
P‐84: Spectrometer‐Enhanced Imaging Colorimetry
Authors: Becker Michael E. , Neumeier Jürgen , Wolf Martin
Published: June 2017

We introduce the combination of a high resolution RGB‐camera with an array spectroradiometer for fast and accurate evaluation of lateral variations of chromaticity and luminance in the field of display metrology. The paper provides an analysis of the performance of this instrument when applied to colorimetric calibrations of state‐of‐the‐art computer display screens under the timing constraints of manufacturing lines.
P‐87: A Novel Method for Measuring Optical Performance of AR/VR Displays
Authors: Mou Xi , Xu Chenzi , Mou Tongsheng
Published: June 2017

The measurement of optical performance such as luminance, chromaticity for augmented reality/virtual reality (AR/VR) display is significantly different from that of conventional real display. The spatial coordinates of the virtual image need to be described with a V‐H angular coordinate system. The image beam to be measured at each viewing field comes through exit pupil of the virtual imaging device, which is difficult for the measurement of the virtual image by traditional luminance meters.

In this paper, we proposed a new optical measurement system which simulates the imaging mechanism of the human eye. A 5mm aperture is placed in front of the focal point of the imaging lens of the luminance meter, which works as the entrance pupil of the luminance meter and is fit to inside of the exit pupil of the virtual imaging device, and the field of view (FOV) keep constant at different imaging distances. The combination of a spectrometer and a CCD imaging device is equipped to determine the optical and image parameters of AR/VR displays.
P‐218: An Approach to Reduce VR Sickness by Content Based Field of View Processing
Authors: Kala Nupur , Lim Kyungmin , Won Kwanghyun , Lee Jaesung , Lee Tammy , Kim Sehoon , Choe Wonhee
Published: June 2017

In this paper, we present a method of reducing VR sickness using static and dynamic FoV processing based on visual content analysis. The motion information is obtained for each frame using a feature tracking algorithm. Then, the induced sickness for each frame is estimated, using a sickness model that is obtained experimentally. Based on the estimated sickness, the FOV in vertical region is adjusted dynamically to mitigate sickness. The novelty of our approach lies in: a) A head movement based method for measuring postural stability, to continuously monitor sickness, b) Vertical FOV processing based on content analysis, for reducing sickness, c) Sickness estimation based on visual content analysis. Our research shows a significant decrease in sickness, 31.4% and 28.8% respectively on reducing FoV by a fixed amount and adaptively based on content analysis.
P‐88: Numerical Simulation and Quantitative Evaluation for Motional Display Uniformity in a Directional Backlight Glasses‐free 3D Display
Authors: He Jieyong , Liang Haowen , Zhang Quanquan , Guo Xiaohan , Wang Jiahui , Zhou Jianying
Published: June 2017

A quantitative evaluation for the display uniformity in a directional backlight system is proposed. Motional uniformity with multi‐viewing position is analyzed to quantify the display quality, with a ray‐tracing model based visualized simulation assisting. Display performance on motional uniformity is discussed and a solution is finally proposed to improve the uniformity, optimizing the 3D display system.
P‐93: Optimization of Image Quality for the Scalable Laser‐Projection Light Field 3D Display
Authors: Aung Kyaw Kyaw , Lin Hoang Yan
Published: June 2017

A method to improve the image quality for the laser‐projection 3D light field display is proposed. A mathematical model established by analyzing the principle of light field imaging, and the reconstruction of image source are discussed. The simulation and experiment further validate that the proposed algorithm can effectively improve the image quality of the display.
P‐110: A Large‐Area Optical Switch Based on Electrowetting
Authors: Wang Jin-Hui , Li Lei , Wang Qiong-Hua
Published: June 2017

In this paper, we report a large‐area optical switch using deformable liquid droplet. The deformation is produced by the electrowetting on dielectric (EWOD) phenomenon. Our device provides a high optical attenuation (~660:1). The open time and close time are measured to be ~60ms, and ~100ms, respectively. The proposed optical switch has potential applications in variable optical attenuators, optical fiber communications, and displays.
P‐97: Parameters Design and Viewing Zone Analysis of 360‐degree Cylindrical Autostereoscopic 3D Display with Novel View‐pixels Arrangement
Authors: Lai Jhih-Yong , Lin Hoang Yan
Published: June 2017

In this research, the parallax barrier technique is applied on a static cylindrical display to achieve the 360‐degree autostereoscopic 3D display. New parameter design rules and a novel view‐pixels arrangement to improve observation quality are proposed. We simulated the luminance distributions to demonstrate the results with different aperture ratios.
P‐99: Occluded Three‐dimensional Object Display Algorithm Using Fourier Spectrum in Integral Imaging
Authors: Xing Yan , Xiong Zhao-Long , Deng Huan , Wang Qiong-Hua
Published: June 2017

We propose an occluded three‐dimensional (3D) object display algorithm based on Fourier Spectrum in integral imaging (II). The orthographic sub‐images are achieved by acquiring their Fourier spectrums. Based on the recovered sub‐images, the II reconstruction is used to display the 3D object without occlusion effect. Experimental results verify the effectiveness of the proposed algorithm in II display.
P‐102: Optical Design for a See‐Through Head‐Mounted Display with High Visibility
Authors: Wu Tsung-Hsien , Zhao Kai-Wei , Chang Kao-Der , Pan Jui-Wen
Published: June 2017

An optical design for a see‐through head‐mounted display with high visibility is described. This design, which is based on a light guide plate with triangular microstructures, can overcome the limitations of the balance in optical efficiency.