Journal of the Society for Information Display最新文献_第2页

Fist-sized aerial volumetric display with femtosecond laser drawing 拳头大小的空中体积显示与飞秒激光绘图

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-01-07 DOI: 10.1002/jsid.2025

Kota Kumagai, Tatsuki Mori, Yoshio Hayasaki

引用次数: 0

Writing and optical characteristics of anti-glare screens for educational applications 教育用防眩光屏幕的书写和光学特性

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-12-29 DOI: 10.1002/jsid.2023

Makio Kurashige, Yosuke Kosaka, Kazutoshi Ishida, Takashi Shibata

{"title":"Writing and optical characteristics of anti-glare screens for educational applications","authors":"Makio Kurashige, Yosuke Kosaka, Kazutoshi Ishida, Takashi Shibata","doi":"10.1002/jsid.2023","DOIUrl":"https://doi.org/10.1002/jsid.2023","url":null,"abstract":"As electronic displays have become to be used under ambient illumination environment, the situations have been increased which the screens are exposed to the various types of ambient light sources. Since the reflection of ambient light by the screen generally results in the lack of visibility of the displayed contents, anti-glare layer (AGL) on top of the screen has been applied to suppress unwanted reflection. Meanwhile, handheld digital devices have been actively adopted to enhance the quality of learning experiences. Although it was pointed out that the impact of glare may lead to shorter viewing distance or poor posture of the students, there was not enough information regarding the relation between writing and optical characteristics of the anti-glare screen. The purpose of this study is to provide information, which will help to select the appropriate screens for each application. Through the experiments with different AGLs and the displays, coefficient of friction, gloss value, sparkle contrast, and display modulation transfer function (MTF) were selected to characterize the writing and the optical characteristics. While the trend of the gloss values was similar to that of the display MTF, the trend of the sparkle contrast was different from them. These results were summarized as radar charts.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 3","pages":"159-167"},"PeriodicalIF":1.7,"publicationDate":"2024-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Flexible bezel-less thin-film transistor backplane with through-plastic-vias for seamless tiling 柔性无边框薄膜晶体管背板与通过塑料孔无缝平铺

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-12-16 DOI: 10.1002/jsid.2024

Hiroshi Tsuji, Masashi Miyakawa, Tatsuya Takei, Yoshihide Fujisaki, Mitsuru Nakata

{"title":"Flexible bezel-less thin-film transistor backplane with through-plastic-vias for seamless tiling","authors":"Hiroshi Tsuji, Masashi Miyakawa, Tatsuya Takei, Yoshihide Fujisaki, Mitsuru Nakata","doi":"10.1002/jsid.2024","DOIUrl":"https://doi.org/10.1002/jsid.2024","url":null,"abstract":"Tiling with a variety of panel units is a promising approach to customizing displays in terms of size, shape, and aspect ratio. However, tiled displays with conventional panel units have a major drawback in that they suffer from noticeable seams due to the bezels of the panel units. Here, we demonstrate a flexible bezel-less thin-film transistor (TFT) backplane for seamless tiling. By using through-plastic-vias (TPVs) that penetrate an ultrathin polyimide (PI) film substrate, a bezel-less backplane with an ultra-narrow bezel width of 8 μm was realized, in which oxide TFTs in pixel circuits on the backplane are driven from the back side of the PI film substrate using three-dimensional signal wires, which go through the TPVs. The resistance of a TPV was evaluated with a TPV chain with 1000 TPVs connected in series and was found to be as small as 1.3 Ω. Furthermore, the transfer characteristics of an oxide TFT in a test element group for a pixel circuit were evaluated from the back side of the PI film substrate. The TFT exhibited clear switching behavior with an on/off current ratio of more than 108 and a high mobility of 25 cm2/Vs, which are sufficient to drive light-emitting devices.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 1","pages":"18-23"},"PeriodicalIF":1.7,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Alignment-free diffuser film composed of a multilayer dielectric and a microprism layer for mini-LED backlights 由多层电介质和微棱镜层组成的用于微型led背光的免对准扩散膜

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-12-09 DOI: 10.1002/jsid.2021

Marii Nishikawa, Yukio Taniguchi, Masahiro Goto, Yasuyuki Ohyagi, Yoshihiro Kanai, Masayuki Sekido, Hirotsugu Yamamoto

引用次数: 0

Eutectic phosphor for high-power excitation 大功率激发用共晶荧光粉

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-11-17 DOI: 10.1002/jsid.2014

Seika Tokumitsu, Tsuneo Kusunoki, Satoshi Makio, Hideo Kawabe

{"title":"Eutectic phosphor for high-power excitation","authors":"Seika Tokumitsu, Tsuneo Kusunoki, Satoshi Makio, Hideo Kawabe","doi":"10.1002/jsid.2014","DOIUrl":"https://doi.org/10.1002/jsid.2014","url":null,"abstract":"High-power blue-emitting laser diodes have been used in projectors and lighting systems as excitation sources for yellow-emitting phosphors. These phosphors must be robust and should not exhibit thermal quenching. In this work, we developed a durable eutectic phosphor consisting of single-crystal Ce-doped yttrium aluminum garnet (Ce:YAG) phosphor and Al2O3 (sapphire), with a thermal conductivity greater than 20 W/(m·K). This eutectic phosphor is named EPOCH-Neo. EPOCH-Neo specimens were cut from a large crystal substrate prepared by an edge-defined film-fed growth method. We evaluated the optical properties of EPOCH-Neo specimens and the optical uniformity of an EPOCH-Neo substrate. In addition, to control the chromaticity, the Y-sites of Ce:YAG were doped with Gd at concentrations as high as 50% and the chromaticity and thermal characteristics of the resultant phosphors were evaluated. Moreover, the characteristics of a device composed of EPOCH-Neo on a heatsink under blue laser excitation were examined. The results showed that EPOCH-Neo is a durable phosphor suitable for use in high-power-excitation applications.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 1","pages":"3-17"},"PeriodicalIF":1.7,"publicationDate":"2024-11-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143115991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An OLED display fabricated through side-by-side pixel patterning via photolithography 一种利用光刻技术制作并排像素图案的有机发光二极管显示器

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-11-15 DOI: 10.1002/jsid.2019

Shingo Eguchi, Sho Kato, Takayuki Oide, Akihiro Chida, Koji Kusunoki, Yasumasa Yamane, Satoru Idojiri, Yasutaka Nakazawa, Kenichi Okazaki, Shunpei Yamazaki

引用次数: 0

Reducing stereo ray-tracing budget with 3D warping and perception-driven reconstruction 通过3D扭曲和感知驱动重建减少立体光线跟踪预算

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-11-14 DOI: 10.1002/jsid.2016

Zhongye Shen, Chunyi Chen, Haiyang Hu, Yunbiao Liu, Ripei Zhang

{"title":"Reducing stereo ray-tracing budget with 3D warping and perception-driven reconstruction","authors":"Zhongye Shen, Chunyi Chen, Haiyang Hu, Yunbiao Liu, Ripei Zhang","doi":"10.1002/jsid.2016","DOIUrl":"https://doi.org/10.1002/jsid.2016","url":null,"abstract":"Monte Carlo ray tracing can produce high-fidelity stereo renderings of 3D scenes. However, the computational costs associated with shading indirect illumination can be prohibitively expensive. While techniques like reprojection and reconstruction have been employed to reduce the inherent redundancy in stereo rendering, they often fall short in addressing issues like remaining holes and appearing artifacts, particularly in the case of specular reflections. In this paper, we introduce a stereo rendering method that leverages both ray tracing and 3D warping, incorporating techniques for reusing indirect illumination calculations and perception-driven reconstructions. At the pre-rendering stage, we reuse indirect illumination calculations in the background and 3D warping regions, resulting in significant savings of indirect illumination calculations in the testing scenes. For the remaining holes, we adopt a sparse sampling strategy for representative pixels, guided by saliency maps. We iteratively reconstruct indirect illumination, employing a stopping criterion based on just noticeable difference thresholds. Through equal-sample experiments, we showcase the efficiency achieved by the proposed method in reducing high-level sampling costs for 87.688% ~ 99.581% regions of the test scenes. Furthermore, the proposed method excels in accurately rendering both diffuse and specular reflections, ultimately enhancing the overall visual perception quality.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 3","pages":"122-137"},"PeriodicalIF":1.7,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143554960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Image quality characterization of near-eye displays 近眼显示器的图像质量表征

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-11-12 DOI: 10.1002/jsid.2015

Ryan Beams, Chumin Zhao, Aldo Badano

引用次数: 0

Inkjet printing of mixed layers comprising multinary semiconductor quantum dots and charge transport materials for light-emitting diode displays 用于发光二极管显示器的包含多半导体量子点和电荷输运材料的混合层的喷墨打印

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-11-11 DOI: 10.1002/jsid.2022

Genichi Motomura, Satoru Ohisa, Taro Uematsu, Susumu Kuwabata, Tatsuya Kameyama, Tsukasa Torimoto, Yoshihide Fujisaki

{"title":"Inkjet printing of mixed layers comprising multinary semiconductor quantum dots and charge transport materials for light-emitting diode displays","authors":"Genichi Motomura, Satoru Ohisa, Taro Uematsu, Susumu Kuwabata, Tatsuya Kameyama, Tsukasa Torimoto, Yoshihide Fujisaki","doi":"10.1002/jsid.2022","DOIUrl":"https://doi.org/10.1002/jsid.2022","url":null,"abstract":"Quantum dots (QDs) are important luminescent structures with applications in wide-color-gamut displays requiring exceptional color reproducibility. Multinary semiconductor QDs are expected to serve as eco-friendly materials to replace conventional QDs owing to the narrow spectral widths and tunable bandgaps of these QDs. However, the application of multinary QDs, which tend to exhibit defect-related emissions, to QD light-emitting diode (QLED) displays will require electroluminescence to be obtained from QLEDs incorporating inkjet-printed emitting layers. The present work examines QLEDs exhibiting vibrant color emissions based on blue-emitting Zn–Se–Te QDs, green-emitting Ag–In–Ga–S QDs, and red-emitting Ag–Cu–In–Ga–S QDs. Each such QLED contains QD emitting layers comprising a mixture of charge transport materials. The spectra obtained from these RGB QLEDs fabricated by spin-coating show very high color purity. Passive matrix QLED displays incorporating these QDs are also fabricated by inkjet printing to demonstrate the high color purity that can be obtained from multinary QDs in displays. In conjunction with passive matrix driving, these displays produce clear moving images with vibrant electroluminescence originating from the multinary QDs. The present results indicate that these QDs have significant potential for utilization in wide-color-gamut displays.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 2","pages":"83-94"},"PeriodicalIF":1.7,"publicationDate":"2024-11-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380777","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrophoretic video display based on image semantic segmentation 基于图像语义分割的电泳视频显示

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-11-08 DOI: 10.1002/jsid.2018

Heng Zhang, Shi-Xiao Li, Jian-Wen Chen, Zi-Yang Wang, Xiao Bo, Rui-Si Gao, Peng-Fei Bai, Guo-Fu Zhou

{"title":"Electrophoretic video display based on image semantic segmentation","authors":"Heng Zhang, Shi-Xiao Li, Jian-Wen Chen, Zi-Yang Wang, Xiao Bo, Rui-Si Gao, Peng-Fei Bai, Guo-Fu Zhou","doi":"10.1002/jsid.2018","DOIUrl":"https://doi.org/10.1002/jsid.2018","url":null,"abstract":"Electrophoretic displays (EPDs) are popular in consumer electronics, like e-readers and tags, for their paper-like visuals and minimal power consumption. However, EPDs struggle to rapidly switch to target grayscales due to the inherent limitations in the response speed of their display particles. Video halftoning technology achieves a smoother video grayscale display, but it also inevitably reduces the image quality and affects the viewing experience. Therefore, this paper proposes an EPD driving method based on image semantic segmentation. The method could distinguish the dynamic region and the static region accurately. For static areas, high-definition driving waveforms were used to ensure the image display accuracy. For the dynamic area, dynamic target and dynamic text were processed by different algorithms, respectively, and the speed-driving waveforms were used to maintain the fluency and clarity of the video display. With the method we proposed, the display quality for EPD in complex video playback was optimized significantly. Compared to DBS refresh techniques, the SSIM had increased from 4% to 82% and the PSNR had increased from 2.56 dB to 10.89 dB with our method, significantly enhancing the video playback performance of EPDs.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 1","pages":"34-45"},"PeriodicalIF":1.7,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143113288","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0