{"title":"Mitigation of Color Appearance Shifts in Augmented Reality Under Aligned Conditions","authors":"Wei Li, Midori Tanaka, Takahiko Horiuchi","doi":"10.1002/jsid.70026","DOIUrl":"https://doi.org/10.1002/jsid.70026","url":null,"abstract":"<div>\u0000 \u0000 <p>This study investigates how geometric alignment affects color appearance in optical see-through (OST) augmented reality (AR). Building on our previous work, we conducted a color-matching experiment using a simulation setup that optically merges a display and printed background via a half mirror. Fifteen observers matched the test colors to either printed targets or printed targets with AR overlays across four lightness levels and six hues, with precise geometric registration maintained throughout the experiment. We analyzed the results using perceptual weighting functions and distance-based metrics. The perceptual weighting coefficients were consistently close to unity, indicating minimal discounting between the virtual and physical components. The color differences between targets and the mean of the matched colors were generally small, and the matched colors clustered closely around their respective targets. The observed mean color difference from the mean (MCDM) was comparable to the previously reported observer variability, while the mean color difference from the target (MCDT) was approximately 1.2 times the MCDM. Although lightness and hue had statistically significant effects on matches, their absolute impacts remained minor. These findings demonstrate that accurate geometric alignment substantially mitigates color appearance shifts in OST AR, even under varying stimulus conditions.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"126-134"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686923","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}
{"title":"Fast-Response Liquid Crystal Device With Alternating LC Alignment Direction","authors":"Wing-Kit Choi, Shi-Rui Chen","doi":"10.1002/jsid.70032","DOIUrl":"https://doi.org/10.1002/jsid.70032","url":null,"abstract":"<div>\u0000 \u0000 <p>In this paper, we propose new fast-response liquid crystal (LC) devices with virtual walls. These new devices have alternating LC alignment directions, which can be generated by using photoalignment technology. These new devices can offer enhanced response speed as well as improved viewing angle characteristics. By choosing different types of “local” LC molecular arrangements, we are able to change the virtual-wall pitch length and hence also change the response speed and transmission of these devices. These new designs can potentially offer an innovative approach to generate virtual walls for these fast-response LC devices.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"155-163"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686109","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}
{"title":"High-Performance Super-Resolution Network Upscaling for VCD-Resolution Video","authors":"Shih-Chang Hsia, Szu-Hong Wang, Shao-Rui Su","doi":"10.1002/jsid.70028","DOIUrl":"https://doi.org/10.1002/jsid.70028","url":null,"abstract":"<div>\u0000 \u0000 <p>This paper proposes an efficient SRGAN-based super-resolution framework for VCD video enhancement, capable of producing high-quality upscaled images with significantly reduced computational complexity. To achieve this goal, we replace the residual-in-residual dense block (RRDB) used in Real-ESRGAN with a novel residual-in-residual sparse block (RRSB) and further apply similarity-based pruning techniques to RRSB for lightweight optimization. Additionally, we introduce the Improved residual-in-residual sparse block (IRRSB), which reduces both the number of input variables and the number of modules within each block. Our approach achieves an 85% reduction in parameters and a 79% decrease in computational workload compared to the original architecture. The framework is specifically designed to upscale old film images, such as those from VCD sources, to HDTV resolution by processing low-resolution inputs and generating outputs with up to 9–16× pixel magnification while effectively minimizing artifacts and blurring. Objective evaluations utilize standard metrics including peak signal-to-noise ratio (PSNR), structural similarity index (SSIM), and natural image quality evaluator (NIQE). Despite the significant reduction in computation, PSNR decreased by only 0.7% dB and SSIM by 3%, while NIQE improved by 13%, indicating an overall enhancement in natural image quality. These results demonstrate that the proposed IRRSB framework maintains strong performance while significantly reducing model size and computational complexity.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"164-179"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686767","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}
{"title":"Printed Autostereoscopic Image Detection Method With Viewpoint Self-Matching","authors":"Xiang Li, Yijie Ai, Guojiao Lv, Junling Wang, Yuanhan Mao, Yufeng Chen","doi":"10.1002/jsid.70031","DOIUrl":"https://doi.org/10.1002/jsid.70031","url":null,"abstract":"<div>\u0000 \u0000 <p>A method for detecting printed autostereoscopic image with viewpoint self-matching is proposed. The proposed method consists of a viewpoint self-matching image acquisition system and a printing quality detection algorithm. The viewpoint self-matching image acquisition system contains a position-designed camera array, which ensures that the arbitrarily arranged parallax images can be captured successfully. The printing quality detection algorithm uses feature comparison to detect printing defects such as crosstalk and color leakage. A prototype has been developed, and the experimental results show that the proposed method can effectively identify printing quality.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"115-125"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686815","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}
{"title":"Light Guide Film With Internal Air-Cavities for Large-Sized Front Light of Reflective Displays","authors":"Jumpei Kuno, Yufeng Weng, Koichi Inoue, Kozo Nakamura, Minoru Miyatake","doi":"10.1002/jsid.70038","DOIUrl":"https://doi.org/10.1002/jsid.70038","url":null,"abstract":"<div>\u0000 \u0000 <p>The advent of reflective displays has given rise to the demand of a front light unit (FLU) due to readability in a dim environment. Herein, we demonstrate air-cavity optics for the efficiently light-emissive light guide plate (LGP), giving the largest size for the FLU reported so far. Our LGP was composed of a transparent plate integrated with the functional film with internal air-cavities. A large difference in refractive index at the air-cavity interface lowers the critical angle, making it more efficient for light to be redirected to the reflective display by total internal reflection (TIR), leading to high efficiency of light extraction. Simulation suggests that light extraction efficiency of embedded air-cavity optics is much higher than that of conventional collimation optics, such as the LGPs reported so far. The effective extraction could also be attributed to a decrease in the size and/or distribution density of cavities, leading to high transparency. The optical design of the cavity shape could give a high contrast ratio in the field of view. A preliminary prototype of the LGP with an E-paper display showed excellent readability in both environments with and without ambient light. A high uniformity of brightness of the large-sized LGP was found.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"180-187"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147687001","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}
Xiangjun Li, Chunhui Chen, Zi Wang, Guoqiang Lv, Qibin Feng
{"title":"Microstructure-Based Optical Film for Wide-Angle HUD Applications","authors":"Xiangjun Li, Chunhui Chen, Zi Wang, Guoqiang Lv, Qibin Feng","doi":"10.1002/jsid.70033","DOIUrl":"https://doi.org/10.1002/jsid.70033","url":null,"abstract":"<div>\u0000 \u0000 <p>Head-up display (HUD) can significantly enhance driving safety. However, when drivers turn their heads to observe road conditions, the brightness of existing HUD may reduce sharply. What is more, for a driver, the head movements in horizontal direction are usually much larger than movements in vertical direction. Therefore, the viewing angle of a HUD should be regulated to have larger horizontal angle. This paper designs an optical film with microstructures to regulate viewing angle of HUD based on digital light processing (DLP) projection. A simulation model is established in the optical design software LightTools. The simulation results show that the horizontal viewing angle of 50% maximum luminance increases from 14° without the optical film to 40° with the optical film. The optical film with the designed microstructures is prepared and measured. The practical measurement results indicate that the horizontal viewing angle of 50% maximum luminance increases from 14° without the optical film to 36° with the optical film, which proves the optical film can significantly expand the horizontal viewing angle. The proposed microstructure design method enables independent control of horizontal and vertical viewing angles, thereby accommodating a variety of application scenarios.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"135-144"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686186","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}
{"title":"Pinhole-Type Dual-View Three-Dimensional Display With High Optical Efficiency","authors":"Chun Cheng, Ke Wang, Jun Fan, Bai-Chuan Zhao","doi":"10.1002/jsid.70030","DOIUrl":"https://doi.org/10.1002/jsid.70030","url":null,"abstract":"<div>\u0000 \u0000 <p>Low optical efficiency is a main limitation of pinhole-type dual-view three-dimensional (3D) displays. We propose a pinhole-type dual-view 3D display with high optical efficiency. An elemental image consists of two subelemental images which are alternate in the horizontal direction. The aperture width and interval of the pinhole array are systematically optimized. The light rays emitted from subelemental images are concentrated into the left and right viewing directions. Experimental results demonstrate that the proposed pinhole-type dual-view 3D display provides identical angular ranges for both 3D images and achieves approximately 2.3 times the optical efficiency of the conventional one.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"150-154"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686108","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}
Chun Cheng, Guang-Qiao Xie, Fan Yang, Yan Zhou, Jun Fan, Fei Wu
{"title":"Dual-View Integral Imaging Display Based on Polarizer Parallax Barrier","authors":"Chun Cheng, Guang-Qiao Xie, Fan Yang, Yan Zhou, Jun Fan, Fei Wu","doi":"10.1002/jsid.70029","DOIUrl":"https://doi.org/10.1002/jsid.70029","url":null,"abstract":"<div>\u0000 \u0000 <p>We propose a dual-view integral imaging display comprising a flat display panel, a polarizer parallax barrier, a pinhole array, and polarizer glasses. Two types of elemental images are vertically alternated on the flat display panel. The vertical pitch of the elemental image is half its horizontal pitch. Two types of polarizer slits polarize the light beams emitted from two types of elemental images, respectively. Two types of polarized light beams pass through the pinhole array and generate 2 three-dimensional (3D) images with uniform voxels. The observers wearing polarizer glasses 1 watch the 3D image 1, while the observers wearing polarizer glasses 2 watch the 3D image 2. The proposed dual-view integral imaging display expands the horizontal viewing angle by 6°.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"145-149"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686254","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}
Di An, Jiachen Kang, Wenzhe Huang, Zixiang Xia, Gufeng He
{"title":"Plasmon-Enhanced Phosphorescent OLEDs With Suppressed Efficiency Roll-Off for High-Luminance Applications","authors":"Di An, Jiachen Kang, Wenzhe Huang, Zixiang Xia, Gufeng He","doi":"10.1002/jsid.70041","DOIUrl":"https://doi.org/10.1002/jsid.70041","url":null,"abstract":"<div>\u0000 \u0000 <p>Phosphorescent organic light-emitting diodes (OLEDs) hold great promise for display and lighting applications owing to their high efficiency and excellent color purity. However, their application in high-luminance fields such as transparent displays and virtual reality is limited by severe efficiency roll-off, primarily attributed to triplet-triplet annihilation (TTA) and triplet-polaron quenching (TPQ). In this study, we demonstrate that integrating a thin silver anode in close proximity to the phosphorescent emitter achieves a Purcell factor of 3.7, approximately three times that of conventional indium tin oxide–based devices. This configuration accelerates the exciton decay rate and reduces exciton density, thereby significantly suppressing both TTA and TPQ. As a result, the efficiency roll-off is reduced from 57% to 11%. Notably, despite 64% of the energy coupling into surface plasmon polariton modes, the optimized device exhibits a 17% improvement in current efficiency at 20,000 cd/m<sup>2</sup> compared to conventional phosphorescent OLEDs with analogous structures, without requiring additional light extraction techniques. Moreover, the operational lifetime (LT90) is extended by five times. These findings highlight the potential of a simple plasmonic nanofilm approach for advancing high-luminance phosphorescent OLEDs.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 4","pages":"188-195"},"PeriodicalIF":2.2,"publicationDate":"2026-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147686776","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}
{"title":"Visual Enhancement by Contrast Model for Electrowetting Displays Under Ambient Light","authors":"Fei Qian-yi, Shanling Lin, Zhixian Lin, Tang Biao","doi":"10.1002/jsid.70000","DOIUrl":"https://doi.org/10.1002/jsid.70000","url":null,"abstract":"<div>\u0000 \u0000 <p>As a reflective display, the luminance and contrast of electrowetting display (EWD) are affected by ambient light. In this paper, we propose a method to enhance the display effect of EWD under ambient light. Firstly, the contrast model is used to compensate the image to minimize the distortion of ambient light, and then the image is corrected by adaptive-gamma correction to match the display characteristics of EWD. The proposed method performs better in absolute mean brightness error (AMBE), structural similarity (SSIM), and EME than the other method, increased by 50.8\u0000<span></span><math>\u0000 <mo>%</mo></math>, 2.6\u0000<span></span><math>\u0000 <mo>%</mo></math>, and 30.9\u0000<span></span><math>\u0000 <mo>%</mo></math>, respectively. It is demonstrated that the proposed method reduces the distortion of ambient light on EWD displays and improves readability of EWD under ambient light.</p>\u0000 </div>","PeriodicalId":49979,"journal":{"name":"Journal of the Society for Information Display","volume":"34 3","pages":"75-84"},"PeriodicalIF":2.2,"publicationDate":"2026-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147569813","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}