Journal of the Society for Information Display最新文献

Enhancing optical output power efficiency in nitride-based green micro light-emitting diodes by sidewall ion implantation 通过侧壁离子注入提高氮化物绿色微型发光二极管的光输出功率效率

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-10-11 DOI: 10.1002/jsid.2010

Yu-Hsiang Chang, Yuan-Chao Wang, Jian-Jang Huang

{"title":"Enhancing optical output power efficiency in nitride-based green micro light-emitting diodes by sidewall ion implantation","authors":"Yu-Hsiang Chang, Yuan-Chao Wang, Jian-Jang Huang","doi":"10.1002/jsid.2010","DOIUrl":"https://doi.org/10.1002/jsid.2010","url":null,"abstract":"Though micro-LED (light-emitting diode) displays are considered the emerging display technology, the micron-scale LED chip size encounters severe efficiency degradation that may impact the power budget of the displays. This work proposes an ion implantation method to deliberately create a high-resistivity sidewall in the InGaN/GaN green LED. Our study demonstrates that ion implantation suppresses reverse leakage current due to the mitigation of sidewall defects. For an LED mesa size of 10 × 10 μm2, optical output power density is improved by 36.2% compared to the device without implantation. Compared to a larger 100 × 100 μm2 device without implantation, we achieve only 21.3% degradation of output power density under 10 A/cm2 injection for a 10 × 10 μm2 LED with implantation. In addition, the ion implantation method can lower the wavelength shift by reducing light emission from the region near the sidewall (where the amount of Indium [In] clustering differs from the mesa region). The results show promise in addressing the efficiency challenges of micro-LED displays by selective ion implantation.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596421","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

Region-selective shift register by a single output enable signal for a multiple refresh frequency driving scheme 多刷新频率驱动方案的单输出使能信号区域选择移位寄存器

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-09-29 DOI: 10.1002/jsid.2008

Min Kyu Chang, Ji Hoon Kim, Hyoungsik Nam

{"title":"Region-selective shift register by a single output enable signal for a multiple refresh frequency driving scheme","authors":"Min Kyu Chang, Ji Hoon Kim, Hyoungsik Nam","doi":"10.1002/jsid.2008","DOIUrl":"https://doi.org/10.1002/jsid.2008","url":null,"abstract":"Many low-power technologies have been developed for high-performance displays. One method is to vary the refresh rate according to the input image, where frequencies are reduced over still images and slow-moving videos. To support the variable refresh rate scheme, the programmable gate driver circuit should be integrated. This paper proposes a thin-film transistor (TFT) shift register of which output pulse is simply controlled by an enable signal. Because the output pulse generation is directly adjusted without the previous programming period, various output pulse sequences are possible with the high flexibility. The shift register is composed by adding six TFTs and one capacitor to a conventional circuit that provides a carry pulse to a next stage. The simulation program with integrated circuit emphasis (SPICE) simulation ensures that gate pulses for any numbers of lines in any regions can be generated within one frame only by applying the enable signal at the corresponding timing, resulting in multiple refresh frequencies in a screen. In addition, it is verified that additional TFTs and capacitor contribute to only the negligible increase in power consumption by 2.1%, compared to a conventional shift register.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsid.2008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596401","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Stereo depth-fused 3D rendering for stacked stereo displays 用于堆叠式立体显示器的立体深度融合 3D 渲染技术

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-09-17 DOI: 10.1002/jsid.2004

Yuto Morishita, Munekazu Date, Haruki Mizushina, Shiro Suyama, Kenji Yamamoto

引用次数: 0

Investigation of the effect of the alignment of the eye and the virtual image of virtual reality on fatigue in viewing VR device 眼睛与虚拟现实的虚拟图像对齐对观看 VR 设备疲劳的影响调查

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-09-16 DOI: 10.1002/jsid.2007

Hyungki Hong, Hyungoo Kang

{"title":"Investigation of the effect of the alignment of the eye and the virtual image of virtual reality on fatigue in viewing VR device","authors":"Hyungki Hong, Hyungoo Kang","doi":"10.1002/jsid.2007","DOIUrl":"https://doi.org/10.1002/jsid.2007","url":null,"abstract":"Cybersickness is a major problem hindering the use of fully immersive virtual reality (VR) systems. A mismatch between the interpupillary distance (IPD) and the inter-optical system distance (IOSD) can cause discomfort when using VR devices. To solve this, the IOSD must be aligned according to the user's IPD. Herein, we investigated the effects of the optimum alignment of IPD and IOSD on eye fatigue when using VR systems. A method was used such that the IPD and IOSD for each participant were initially aligned under the condition that binocular fusion did not occur by displaying different left and right images. Fifteen university students aged 20–26 years were included. In the alignment and misalignment states, a symptom questionnaire was used to evaluate changes in the symptoms of participants after viewing a short movie using the VR device. We found that the obtained results in the eye strain category were statistically improved in the aligned state compared with those in the misaligned state. However, there were no significant differences in the general discomfort, nausea, focusing difficulty, or headache categories. Consequently, we confirmed that the alignment of the VR device using the proposed method can reduce eye fatigue when viewing VR content.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsid.2007","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142596392","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Subjective assessment of visual fidelity: Comparison of forced-choice methods 视觉逼真度的主观评估：强制选择法的比较

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-09-15 DOI: 10.1002/jsid.2003

Domenic Au, Sanjida Sharmin Mohona, Laurie M. Wilcox, Robert S. Allison

{"title":"Subjective assessment of visual fidelity: Comparison of forced-choice methods","authors":"Domenic Au, Sanjida Sharmin Mohona, Laurie M. Wilcox, Robert S. Allison","doi":"10.1002/jsid.2003","DOIUrl":"https://doi.org/10.1002/jsid.2003","url":null,"abstract":"Increases in display resolution, frame rate, and bit depth, particularly with advances in stereoscopic 3D (S3D) displays, have increased demand for efficient compression throughout the imaging pipeline. To meet such requirements, typically the aim is to reduce bandwidth while presenting content that is visually indistinguishable from the original uncompressed versions. Subjective image quality assessment is essential and multiple methods have been proposed. Of these, the ISO/IEC 29170-2 flicker paradigm is a rigorous method used to define visually lossless performance. However, it is possible that the enhanced sensitivity to artifacts in the presence of flicker does not predict visibility under natural viewing conditions. Here, we test this prediction using high-dynamic range S3D images and video under flicker and non-flicker protocols. As hypothesized, sensitivity to artifacts was greater when using the flicker paradigm, but no differences were observed between the non-flicker paradigms. Results were modeled using the Pyramid of Visibility, which predicted artifact detection driven by moderately low spatial frequencies. Overall, our results confirm the flicker paradigm is a conservative estimate of visually lossless behavior; it is highly unlikely to miss artifacts that would be visible under normal viewing. Conversely, artifacts identified by the flicker protocol may not be problematic in practice.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsid.2003","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142430064","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A new gate driver employing linearly sweep signal generated module for high-resolution micro-LED display with line-by-line pulse width modulation driving method 采用线性扫描信号生成模块的新型栅极驱动器，用于逐行脉宽调制驱动方法的高分辨率微型 LED 显示器

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-09-02 DOI: 10.1002/jsid.2002

Li-Rong Zhang, Xiang-Lin Mei, Zhao-Hua Zhou, Lei Zhou, Chun Liu, Miao Xu, Lei Wang, Wei-Jing Wu, Jun-Biao Peng

引用次数: 0

Visual perception of distance in 3D-augmented reality head-up displays 三维增强现实平视显示器中的距离视觉感知

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-08-11 DOI: 10.1002/jsid.2000

Tae Hee Lee, Young Ju Jeong

{"title":"Visual perception of distance in 3D-augmented reality head-up displays","authors":"Tae Hee Lee, Young Ju Jeong","doi":"10.1002/jsid.2000","DOIUrl":"https://doi.org/10.1002/jsid.2000","url":null,"abstract":"A head-up display (HUD) is conveniently used to provide information on the display without changing the user's gaze. 3D HUDs, capable of projecting three-dimensional information beyond the 2D HUDs, enable the projection of augmented reality (AR) objects into the real world. Research on the perception of 3D AR HUDs is crucial for their efficient utilization and secure commercialization. In this study, we examined whether a 3D HUD is more comfortable than a 2D HUD in the context of viewing real-world environments and augmented reality objects together. Additionally, we analyzed participants' perception of distance and fatigue for AR objects at varying distances from the 3D HUD. The study found that using a 3D HUD in an AR environment resulted in less fatigue than using a 2D HUD, as determined by a Mann–Whitney statistical analysis. Participants were able to match the depth of AR objects in a 3D HUD within a range of 3 to 50 m, with similar diopter and parallax angular distance errors, regardless of the distance of the AR object. Visual fatigue increases with increasing distance from the virtual-image plane and can be modeled as a quadratic function in the domain of diopter and parallax angles.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141980321","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

Virtual and augmented reality: Human sensory-perceptual requirements and trends for immersive spatial computing experiences 虚拟现实和增强现实：身临其境的空间计算体验对人类感官的要求和趋势

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-08-11 DOI: 10.1002/jsid.2001

Achintya K. Bhowmik

{"title":"Virtual and augmented reality: Human sensory-perceptual requirements and trends for immersive spatial computing experiences","authors":"Achintya K. Bhowmik","doi":"10.1002/jsid.2001","DOIUrl":"https://doi.org/10.1002/jsid.2001","url":null,"abstract":"Building on several decades of research and development, the recent progress in virtual reality (VR) and augmented reality (AR) devices with spatial computing technologies marks a significant leap in human–computer interaction, with applications ranging from entertainment and education to e-commerce and healthcare. Advances in these technologies promise immersive experiences by simulating and augmenting the real world with computer-generated digital content. The core objective of the VR and AR systems is to create convincing human sensory perceptions, thereby creating immersive and interactive experiences that bridge the gap between virtual and physical realities. However, achieving true immersion remains a goal, and it necessitates a comprehensive understanding of the neuroscience of human multisensory perception and accurate technical implementations to create a consistency between natural and synthetic sensory cues. This paper reviews the human sensory-perceptual requirements vital for achieving such immersion, examines the current status and challenges, and discusses potential future advancements.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141980345","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

Multi-parameter fusion driver fatigue detection method based on facial fatigue features 基于面部疲劳特征的多参数融合驾驶员疲劳检测方法

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-07-24 DOI: 10.1002/jsid.1343

Xuejing Du, Chengyin Yu, Tianyi Sun

引用次数: 0

Depth perception optimization of mixed reality simulation systems based on multiple-cue fusion 基于多线索融合的混合现实模拟系统深度感知优化

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2024-07-21 DOI: 10.1002/jsid.1341

Wei Wang, Tong Chen, Haiping Liu, Jiali Zhang, Qingli Wang, Qinsheng Jiang

{"title":"Depth perception optimization of mixed reality simulation systems based on multiple-cue fusion","authors":"Wei Wang, Tong Chen, Haiping Liu, Jiali Zhang, Qingli Wang, Qinsheng Jiang","doi":"10.1002/jsid.1341","DOIUrl":"10.1002/jsid.1341","url":null,"abstract":"Mixed reality technology can be applied to simulation training, improve surgical performance, enhance 3D game experience, and so on, attracting extensive attention of researchers. The perception of the user about head-mounted display MR using HoloLens is critical, especially for precision applications such as virtual hoisting. Designing and adding appropriate depth cues in MR scenes is an effective way to improve users' depth perception. In this study, taking virtual hoisting training system as an example, the depth perception strategy of multi-cue fusion is proposed to improve the perception effect. Based on the mechanism of human depth perception, five kinds of depth cues are designed. The depth perception effect of adding single cue is studied by perceptual matching experiment. Based on the principle of fuzzy clustering, a multiple-cue comprehensive depth optimization strategy on viewing distance scale is proposed. Finally, the perceptual matching results demonstrate the effectiveness of the multi-cue fusion strategy, and the average error is reduced by 20.68% compared with the single-cue strategy, which can significantly improve the spatial depth perception. This research can provide a reference for improving users' depth perception in interactive MR simulation systems.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":null,"pages":null},"PeriodicalIF":1.7,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141818130","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