Journal of the Society for Information Display最新文献

Thin and low power 2D backlight module development with white mini-LEDs 采用白色迷你led的薄而低功耗2D背光模块开发

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-02-26 DOI: 10.1002/jsid.2034

Ryoji Yoshimura, Takuya Nakabayashi, Seitaro Akagawa

引用次数: 0

Simultaneous pulse amplitude and pulse width modulation in a 6T1M2C pixel circuit enabled by the separate timing control for charge injection and transport in the multimodal transistor 在一个6T1M2C像素电路中，脉冲幅度和脉宽的同步调制通过多模态晶体管中电荷注入和传输的单独定时控制实现

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-02-26 DOI: 10.1002/jsid.2035

Eva Bestelink, Radu A. Sporea

{"title":"Simultaneous pulse amplitude and pulse width modulation in a 6T1M2C pixel circuit enabled by the separate timing control for charge injection and transport in the multimodal transistor","authors":"Eva Bestelink, Radu A. Sporea","doi":"10.1002/jsid.2035","DOIUrl":"https://doi.org/10.1002/jsid.2035","url":null,"abstract":"Emerging micro light-emitting diode (microLED) displays promise high brightness, improved lifetime, and high pixel density. However, to achieve the desired color accuracy, microLEDs require constant current driving, which can result in wavelength shift at higher pixel brightness. This presents a challenge for pixel circuit design. The driving scheme must vary the emission duration (i.e., pulse width modulation, PWM) to prevent wavelength shift, and it must also include an element of current magnitude control (pulse amplitude modulation, PAM) for fine tuning. This results in complex signaling, large footprint, and multiple sources of variability arising from the numerous transistors, which together diminish the implementation's efficacy. Here, we present a 6T1M2C pixel circuit, which takes advantage of the properties of the multimodal thin-film transistor (MMT) to achieve PWM and PAM simultaneously, rather than in a hybrid configuration, while also performing threshold compensation. The MMT is the first transistor that allows for separation of injection (current magnitude) from channel conduction state (timing), allowing a higher degree of freedom for designing pixel circuits with lower complexity. This proof-of-concept TCAD implementation demonstrates the benefits of MMT-based simultaneous PWM and PAM circuits, with compact device footprint, reduced circuit complexity, and power-efficient features.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 4","pages":"283-293"},"PeriodicalIF":1.7,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsid.2035","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787293","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

Experimental research on depth perception of comfortable interactions in virtual reality 虚拟现实中舒适交互深度感知的实验研究

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-02-22 DOI: 10.1002/jsid.2030

Mei Guo, Haolin Gao, Yue Liu, Weitao Song, Songyue Yang, Yongtian Wang

{"title":"Experimental research on depth perception of comfortable interactions in virtual reality","authors":"Mei Guo, Haolin Gao, Yue Liu, Weitao Song, Songyue Yang, Yongtian Wang","doi":"10.1002/jsid.2030","DOIUrl":"https://doi.org/10.1002/jsid.2030","url":null,"abstract":"Virtual reality (VR) displays aim to create highly immersive virtual environments based on the principle of binocular disparity, which reproduces spatial information of virtual scenes through the fusion processing of binocular disparity by the visual system. However, due to the differences between VR displays and real-world scenes, the challenge of rendering in VR displays in a manner that aligns with users' natural depth perception principles has not been fully addressed. In this paper, the virtual image distances (VIDs) of RGB channels in head-mounted display (HMD) were measured and a depth perception experiment based on random dot stereograms (RDS) according to the measured VID values was designed. The depth perception comfort fusion thresholds in VR systems were determined by psychophysical methods, and the results demonstrate that the comfort fusion threshold for uncrossed disparity is significantly lower than that for crossed disparity. Additionally, user interaction performance in the determined virtual depth scenarios showed a 12.94% reduction in reaction time and a 16.86% improvement in accuracy compared to other virtual depths. Our findings provide further understanding of comfortable depth visual presentation in VR displays, which is crucial for enhancing user experience and promoting the widespread adoption of VR technology across various applications.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 4","pages":"263-273"},"PeriodicalIF":1.7,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787006","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

Genetic algorithm-based structural optimization of foldable OLED panels 基于遗传算法的可折叠OLED面板结构优化

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-02-19 DOI: 10.1002/jsid.2032

Qibin Feng, Chen Zheng, Zhe Dong, Yusong Guo, Zi Wang, Guoqiang Lv

引用次数: 0

Time-multiplexing method using dual ferroelectric liquid crystal shutters for light field 3D display 利用双铁电液晶百叶窗进行光场三维显示的时间复用方法

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-02-18 DOI: 10.1002/jsid.2033

Zhi-Bo Sun, Zheng-Nan Yuan, Yi-Peng Huo, Yue-Chu Cheng, Alex Yuk Lung Cheung, Valerii Vashchenko, Olena Vashchenko, Abhishek Srivastava, Hoi-Sing Kwok

{"title":"Time-multiplexing method using dual ferroelectric liquid crystal shutters for light field 3D display","authors":"Zhi-Bo Sun, Zheng-Nan Yuan, Yi-Peng Huo, Yue-Chu Cheng, Alex Yuk Lung Cheung, Valerii Vashchenko, Olena Vashchenko, Abhishek Srivastava, Hoi-Sing Kwok","doi":"10.1002/jsid.2033","DOIUrl":"https://doi.org/10.1002/jsid.2033","url":null,"abstract":"Ultrafast liquid crystal light valves are extensively utilized in high-refresh-rate displays and light beam control and shaping applications. Ferroelectric liquid crystals, characterized by their ability to achieve microsecon response times when driven by a 5 V voltage, are particularly well-suited for array-type liquid crystal light valves, such as display screens or adjustable liquid crystal gratings. This study employs optimized ferroelectric liquid crystal materials that exhibit high contrast (~1,000:1), ultra-fast response times (<20 μs), and polarity-dependent binary switching at low operating voltages (5 V) to develop an array liquid crystal light valve suitable for time-sequential light field 3D displays. Combined with high frame rate display screen, a naked eye 3D display without resolution loss can be achieved. The challenges associated with the independent control of ferroelectric liquid crystals during array light valve operation were analyzed and resolved, resulting in an array-type ultrafast ferroelectric liquid crystal light valve compatible with conventional liquid crystal driving schemes.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 4","pages":"246-254"},"PeriodicalIF":1.7,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/jsid.2033","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787199","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

Visualization of reproducible object colors in standard color spaces using the gamut ring intersection 使用色域环交叉点在标准色彩空间中显示可再现的对象颜色

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-02-17 DOI: 10.1002/jsid.2031

Kenichiro Masaoka, Euan Smith, Karl Lang, Brian Berkeley, Johan Bergquist, John Penczek

引用次数: 0

Quantum dots for display: A review of three key milestones 用于显示的量子点：三个关键里程碑的回顾

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-02-10 DOI: 10.1002/jsid.2028

Seth Coe-Sullivan

引用次数: 0

PR-YOLOv9: An improve defect detection network for hot-pressed light guide plates PR-YOLOv9：改进的热压导光板缺陷检测网络

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-02-06 DOI: 10.1002/jsid.2029

Cunling Liu, Shuo Peng, Shuangning Liu, Junfeng Li

{"title":"PR-YOLOv9: An improve defect detection network for hot-pressed light guide plates","authors":"Cunling Liu, Shuo Peng, Shuangning Liu, Junfeng Li","doi":"10.1002/jsid.2029","DOIUrl":"https://doi.org/10.1002/jsid.2029","url":null,"abstract":"As one of the key components of liquid crystal display, the quality of the hot-pressed light guide plate (LGP) directly affects the display performance. To address the challenges posed by complex background textures, diverse types of defects, large variations in defect resolutions, and low contrast, this paper proposes a surface defect detection method for hot-pressed LGPs based on the PR-YOLOv9. The poly kernel inception network (PKINet) module is integrated by replacing the second convolution module of the YOLOv9 backbone network, effectively reducing interference from invalid targets such as complex textured backgrounds, thereby enhancing the network's ability to detect multi-scale defects and decreasing the network's parameters. Additionally, the receptive-field attention convolutional operation (RFAConv) module is incorporated, replacing the first and last layers of the YOLOv9 backbone network with this module. RFAConv module provides attention weights for large convolution kernels, effectively improving the network's ability to extract spatial feature information. Experimental results show that the proposed PR-YOLOv9 network achieves a mean average precision (mAP) of 98.40% and F1-Score of 97.14% on a self-constructed hot-pressed LGP defect dataset, with a reduction of 6.19 M in network parameters compared with YOLOv9, representing a decrease of 10.18%, making it suitable for real-time detection in industrial settings.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 4","pages":"206-222"},"PeriodicalIF":1.7,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143787311","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

Over 1500 PPI quantum dot color conversion array by lift-off 超过1500 PPI的量子点颜色转换阵列由升空

IF 1.7 4区工程技术

Journal of the Society for Information Display Pub Date : 2025-01-22 DOI: 10.1002/jsid.2027

Qi Song, Jingrui Ma, Depeng Li, Chengcheng Li, Pai Liu, Xiao Wei Sun

引用次数: 0

Low half-wave-voltage and high-bandwidth thin-film lithium niobate electro-optic modulator 低半波电压、高带宽铌酸锂薄膜电光调制器

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.2026

Guanbao Zhao, Jinbiao Xiao

{"title":"Low half-wave-voltage and high-bandwidth thin-film lithium niobate electro-optic modulator","authors":"Guanbao Zhao, Jinbiao Xiao","doi":"10.1002/jsid.2026","DOIUrl":"https://doi.org/10.1002/jsid.2026","url":null,"abstract":"Hybrid silicon and lithium niobate (LN) photonic integration platform has emerged as a promising candidate to combine the scalability of silicon photonic with the high modulation performance of LN. With the rapid development of virtual reality, data communication, and high-definition video, the core optical modulator has been upgraded to ultrahigh-bandwidth (BW) and low half-wave voltage (\u0000<math>\u0000 <msub>\u0000 <mi>V</mi>\u0000 <mi>π</mi>\u0000 </msub></math>). Low \u0000<math>\u0000 <msub>\u0000 <mi>V</mi>\u0000 <mi>π</mi>\u0000 </msub>\u0000 <mspace></mspace></math> and high-BW LN modulators have been demonstrated, with applications ranging from microwave photonics to quantum interfaces. However, due to the simulation design, material selection, and preparation process, the values of BW and voltage are not satisfactory, whose \u0000<math>\u0000 <msub>\u0000 <mi>V</mi>\u0000 <mi>π</mi>\u0000 </msub></math> of 2.2 V and BW of 67 GHz indicators are not excellent. We successfully prepared monolithically integrated TFLNM that feature a CMOS-compatible bias voltage, support data rates up to 110 GHz and half-wave-voltage down to 2 V. We achieve this by designing high BW and low voltage, high-quality preparation, advanced testing, and characterization platform. Notably, the results from physical objects align closely with those from Lumerical INTERCONNECT simulations. Overall, our study has almost doubled the BW of TFLNM reported so far, and \u0000<math>\u0000 <msub>\u0000 <mi>V</mi>\u0000 <mi>π</mi>\u0000 </msub>\u0000 <mspace></mspace></math> has decreased from 2.2 to 2 V.","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"33 4","pages":"181-197"},"PeriodicalIF":1.7,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786991","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