Journal of Display Technology最新文献_第9页

Symmetric Signal Reconstruction and Frequency-Division Differential Driving for High Rate Touch Screen Sensing 用于高速触摸屏传感的对称信号重构和分频差分驱动

Journal of Display Technology Pub Date : 2016-08-24 DOI: 10.1109/JDT.2016.2602244

GyeongSeop Choi;M.G.A. Mohamed;HyungWon Kim

{"title":"Symmetric Signal Reconstruction and Frequency-Division Differential Driving for High Rate Touch Screen Sensing","authors":"GyeongSeop Choi;M.G.A. Mohamed;HyungWon Kim","doi":"10.1109/JDT.2016.2602244","DOIUrl":"https://doi.org/10.1109/JDT.2016.2602244","url":null,"abstract":"As touch screens become larger, touch screen sensing techniques are facing growing demands for higher resolution and speed. While a fast touch screen sensing technique, frequency division concurrent sensing (FDCS) can provide substantial speed enhancement, its scan speed is still limited by the frequency characteristics of the touch screen and driving signals. We propose an enhanced FDCS technique to further improve the scan rate up to four times. The proposed technique drives only the first half-period of driving signals, while reconstructing the remaining half of the signals at the new fast Fourier transform (FFT) called a reconstruction FFT. This way, we can double the scan rate of the FDCS's maximum rate. In addition, we introduce a differential driving technique, which halves the number of required frequencies. This consequently allows us to increase the driving signal frequencies by two times. We also introduce a frequency shuffling technique to eliminate the multitouch cancellation problem, a common problem that makes it difficult to use differential signals for multitouch detection. Simulation experiments show that the proposed method can achieve four times higher scan rate at the cost of little overhead and SNR loss.","PeriodicalId":15588,"journal":{"name":"Journal of Display Technology","volume":"12 11","pages":"1423-1432"},"PeriodicalIF":0.0,"publicationDate":"2016-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/JDT.2016.2602244","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50400090","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Efficient Color Tunable ZnWO4:Er3+-Yb3+ Phosphor for High Temperature Sensing 用于高温传感的高效彩色可调谐ZnWO4:Er3+-Yb3+荧光粉

Journal of Display Technology Pub Date : 2016-08-24 DOI: 10.1109/JDT.2016.2602503

Vineet Kumar Rai;Anurag Pandey

{"title":"Efficient Color Tunable ZnWO4:Er3+-Yb3+ Phosphor for High Temperature Sensing","authors":"Vineet Kumar Rai;Anurag Pandey","doi":"10.1109/JDT.2016.2602503","DOIUrl":"https://doi.org/10.1109/JDT.2016.2602503","url":null,"abstract":"The single monoclinic phase with nano-structured crystallites in the ZnWO\u00004\u0000: Er\u00003+\u0000 -Yb\u00003+\u0000 phosphor have been detected from structural investigations by using the X-ray diffraction (XRD) analysis. The spectral studies performed in the codoped phosphor upon 980 nm excitation emit radiations within the UV- NIR wavelength region. Diffuse reflectance and Fourier transform infrared (FTIR) analysis have been done to identify the presence of active ions and impurities in the prepared phosphor. The pump power dependence study results in green to red intensity ratio variation and thus a tuning in color of emitted light is observed. The observed emissions have been explained on the basis of excited state absorption (ESA), energy transfer (ET), and temporal evolution analysis. The temperature sensing performance of synthesized material studied upto ~798 K results the highest sensor sensitivity of about 14.63 × 10\u0000-3\u0000 K\u0000-1\u0000 which confirms the suitability of present material for high temperature sensing with very good sensitivity.","PeriodicalId":15588,"journal":{"name":"Journal of Display Technology","volume":"12 11","pages":"1472-1477"},"PeriodicalIF":0.0,"publicationDate":"2016-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/JDT.2016.2602503","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50281340","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 12

Toward the Physical-Information Fundamentals of Three-Dimensional Displays 三维显示的物理信息基础

Journal of Display Technology Pub Date : 2016-08-16 DOI: 10.1109/JDT.2016.2600640

Vasily Aleksandrovich Ezhov

{"title":"Toward the Physical-Information Fundamentals of Three-Dimensional Displays","authors":"Vasily Aleksandrovich Ezhov","doi":"10.1109/JDT.2016.2600640","DOIUrl":"https://doi.org/10.1109/JDT.2016.2600640","url":null,"abstract":"The well-known groups of information three-dimensional displays (further-3D displays) with habitual names “stereoscopic,” “holographic,” “volumetric,” “integral imaging,” “light field,” etc., were historically formed without any common classification criteria. However, 3D displays as physical (optical) information systems should have the fundamental classification criteria. Such criteria are introduced in this paper in the form of physical-information modalities (further - modalities) identifying the physical-information formats of 3D image recordings in the working media of 3D displays. The modalities are based on four physical-information categories defined as four possible combinations of two kinds of 3D scene data representation (the object O representation and the representation by angular spectrum S of spherical waves) and two physical forms of each representation implementation (the ray optics R and diffraction optics D concepts). The modality of 3D display defines the primary physical-information properties of 3D image recording in the working medium. The true 3D image properties follow from the primary ones taking into account the relevant psychophysiological properties of the human visual system. The human visual system directly perceives 3D image light distribution that have passed through the optical scheme of 3D display after exiting the working medium. The limits of the proposed theory are discussed.","PeriodicalId":15588,"journal":{"name":"Journal of Display Technology","volume":"12 11","pages":"1344-1351"},"PeriodicalIF":0.0,"publicationDate":"2016-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/JDT.2016.2600640","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"50281347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

IEEE Transactions on Electromagnetic Compatibility IEEE电磁兼容性汇刊

Journal of Display Technology Pub Date : 2016-08-15 DOI: 10.1109/JDT.2016.2599061

引用次数: 0

Journal of Display Technology publication information 《显示技术杂志》出版信息

Journal of Display Technology Pub Date : 2016-08-15 DOI: 10.1109/JDT.2016.2593753

引用次数: 0

IEEE Transactions on Electromagnetic Compatibility IEEE电磁兼容性汇刊

Journal of Display Technology Pub Date : 2016-08-15 DOI: 10.1109/JDT.2016.2599038

引用次数: 0

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Journal of Display Technology Pub Date : 2016-08-15 DOI: 10.1109/JDT.2016.2595838

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Journal of Display Technology information for authors 显示技术期刊作者信息

Journal of Display Technology Pub Date : 2016-08-15 DOI: 10.1109/JDT.2016.2593750

引用次数: 0

Journal of Display Technology publication information 《显示技术杂志》出版信息

Journal of Display Technology Pub Date : 2016-08-15 DOI: 10.1109/JDT.2016.2593758

引用次数: 0

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Journal of Display Technology Pub Date : 2016-08-15 DOI: 10.1109/JDT.2016.2593751

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