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Готові списки джерел за темами / Pixels per inch / Статті в журналах

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Статті в журналах з теми "Pixels per inch"

Автор: Grafiati

Опубліковано: 30 травня 2022

Оновлено: 31 липня 2025

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1

Joo, Won-Jae, Jisoo Kyoung, Majid Esfandyarpour, et al. "Metasurface-driven OLED displays beyond 10,000 pixels per inch." Science 370, no. 6515 (2020): 459–63. http://dx.doi.org/10.1126/science.abc8530.

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Optical metasurfaces are starting to find their way into integrated devices, where they can enhance and control the emission, modulation, dynamic shaping, and detection of light waves. In this study, we show that the architecture of organic light-emitting diode (OLED) displays can be completely reenvisioned through the introduction of nanopatterned metasurface mirrors. In the resulting meta-OLED displays, different metasurface patterns define red, green, and blue pixels and ensure optimized extraction of these colors from organic, white light emitters. This new architecture facilitates the cre

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2

Jung, Dongsoon, Ara Cho, Hokwon Kim, Minsu Jeong, and Jeong Hwan Lee. "32‐4: Late‐News Paper: A 1.03‐inch 2560x2560 3514 PPI Low Power OLEDoS Backplane with In‐pixel Up‐scaling Technique." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 465–68. http://dx.doi.org/10.1002/sdtp.16593.

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A 1.03‐inch 2560x2560 low power OLEDoS backplane with a proposed in‐pixel up‐scaling technique is designed and implemented. Due to the proposed technique based on interpolated pixel scheme, the pixel density of the backplane realizes 3514 PPI (Pixels per Inch) with lower power consumption. The backplane has 1280x1280 input video resolution and output video resolution is upscaled to 2560x2560 without additional up‐scaler. A measured power consumption per 1 mega pixel without OLED frontplane is 16.3mW which is less than our previous 0.7‐inch 1920x1080 OLEDoS backplane with the same semiconductor

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3

Chu, Eun-Kyung, Eun Jeong Youn, Hyun Woong Kim, Bum Doo Park, Ho Kun Sung, and Hyeong-Ho Park. "Wafer-Scale Characterization of 1692-Pixel-Per-Inch Blue Micro-LED Arrays with an Optimized ITO Layer." Micromachines 15, no. 5 (2024): 560. http://dx.doi.org/10.3390/mi15050560.

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Wafer-scale blue micro-light-emitting diode (micro-LED) arrays were fabricated with a pixel size of 12 μm, a pixel pitch of 15 μm, and a pixel density of 1692 pixels per inch, achieved by optimizing the properties of e-beam-deposited and sputter-deposited indium tin oxide (ITO). Although the sputter-deposited ITO (S-ITO) films exhibited a densely packed morphology and lower resistivity compared to the e-beam-deposited ITO (E-ITO) films, the forward voltage (VF) values of a micro-LED with the S-ITO films were higher than those with the E-ITO films. The VF values for a single pixel and for four

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4

Hung, Chia-Che, Ching-Yung Chiu, Yung-Chih Chen, and Chun-Hsin Liu. "P‐63: Simple Pixel Circuit with External Compensation for High PPI Active‐Matrix MicroLED Displays Using PWM Method." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 1719–21. http://dx.doi.org/10.1002/sdtp.16932.

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This work presents a novel pixel circuit that consists of five transistors and two capacitors for active‐matrix micro‐LED (AMμLED) displays. The proposed pixel circuit uses external compensation to compensate for variations in the low‐temperature polycrystalline‐silicon thin‐film transistor (LTPS TFT) threshold voltage and adopts pulse width modulation (PWM) to modulate the grayscale. According to the simulation results and a layout example, the proposed pixel circuit is expected to be applied in high pixels per inch (PPI) car displays in the future.

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5

Dogan, Tamer, Joris de Riet, Thijs Bel, et al. "1000-Pixels per Inch Transistor Arrays Using Multi-Level Imprint Lithography." IEEE Electron Device Letters 41, no. 8 (2020): 1217–20. http://dx.doi.org/10.1109/led.2020.3006343.

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6

Chen, Dongchuan, Qiujie Su, Yingmeng Miao, et al. "29‐4: Research on Dual‐Gate Pixel Architecture Enabling High‐PPI and High‐Refresh‐Rate LCD Panels." SID Symposium Digest of Technical Papers 56, S1 (2025): 267–70. https://doi.org/10.1002/sdtp.18780.

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This paper introduces a novel dual‐gate pixel architecture for high‐PPI (Pixels Per Inch) LCD panels, enabling an 8K 120Hz display with Hardware Super Resolution (HSR) frequencydoubling driving using a‐Si technology. The proposed dual‐gate pixel architecture integrates an HSR driving to address bandwidth limitations in driver ICs and TCONs for 8K 120Hz systems, without additional hardware resources compared to traditional 60Hz designs. The solution supports scalable resolution‐refresh rate configurations, such as 4K HSR 240Hz and 2K HSR 480Hz, offering a cost‐effective approach for high‐ PPI a

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7

Kim, Yohan, Manuel Gensler, Jiyong Kim, et al. "69‐4: Late‐News Paper: Quantum Dot/Organic Nanohybrids for InP‐based QD‐LEDs and Their Patterning via Electrohydrodynamic Jet Printing." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 982–85. http://dx.doi.org/10.1002/sdtp.16732.

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Quantum dot (QD)/organic nanohybrids were developed to be utilized in electrohydrodynamic (EHD) jet‐printed QD‐LEDs. Side‐chain copolymer with elongated aliphatic thiol groups was newly introduced into the nanohybrids to coordinate the polymer chains with the QD surface. The QD‐LEDs with the nonohybrids showed a higher current efficiency over 4‐fold than that with a QD‐only active layer. EHD jet‐printing was independently performed up to 5µm pixel pitch on a substrate, resulting in a resolution of ca. 5,080 pixels per inch.

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8

Chen, Lin, Xiuxia Wang, Yu Wei, and Chenggang Zhou. "A Magnetic Metal Hard Mask on Silicon Substrate for Direct Patterning Ultra-High-Resolution OLED Displays." Micromachines 13, no. 7 (2022): 997. http://dx.doi.org/10.3390/mi13070997.

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With the development of virtual reality/augmented reality (VR/AR) display devices, the conventional fine metal mask is limited by the wet etch process, which no longer meets the demand for high pixels per inch (PPI) displays. We deposited a layer of magnetic metal on the silicon substrate by physical vapor deposition (PVD), and then developed a 2-inch, 3175 PPI magnetic metal hard mask on silicon substrate (MMS) through deep silicon etching and other micro-nano processing for patterning Organic Light-Emitting Diodes (OLED) displays, which can achieve smaller pixel size and higher PPI. MMS can

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9

Peters, Klaus-Ruediger. "On LaserJet Printers:." Microscopy Today 4, no. 10 (1996): 17. http://dx.doi.org/10.1017/s1551929500063367.

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LaserJets, like many other printers, print in lines per inch (Ipi). The lines represent in digital image printing lines of pixels. If the pixels are printed squarely than each square area (of a width equal to that of the actual line width) must be printed with a desired amount of ink variations in order to generate the gray levels (see John Russ’ book for a nice illustration on how this is done in a LaserJet). LaserJets and Inkjets use dots as the smallest printed entity.

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10

Liu, Ya-Li, Tao Liu, Bin Yan, Jeng-Shyang Pan, and Hong-Mei Yang. "Visual Cryptography Using Computation-Free Bit-Plane Reconstruction." Security and Communication Networks 2022 (June 26, 2022): 1–14. http://dx.doi.org/10.1155/2022/4617885.

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Visual cryptography (VC) using bit-plane decomposition improves the quality of the reconstructed image. The disadvantage of this scheme is that the decoder needs computation in order to reconstruct the secret image from its bit-planes. To solve this problem, we propose a no-computation bit-plane decomposition visual cryptography (NC-BPDVC). In NC-BPDVC, we convert the grayscale secret image into a multitone image by multilevel halftoning. Then, by exploring the difference between a digital pixel and a printed dot, we design different dot patterns to render a digital pixel. By doing so, we aban

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11

Fan, Ching-Lin, Wei-Yu Lin, and Shih-Yang Liu. "An Active-Matrix Organic Light-Emitting Diode Pixel Circuit Featuring Mobility Compensation for Portable Applications." Micromachines 14, no. 9 (2023): 1785. http://dx.doi.org/10.3390/mi14091785.

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A 6T1C pixel circuit based on low-temperature polycrystalline oxide (LTPO) technology for portable active-matrix organic light-emitting diode (AMOLED) display applications is proposed in this paper. For superior high-end portable applications including 4K high resolution and high PPI (pixels per inch), the proposed pixel circuit employs a single storage capacitor and signal sharing switch-control design and provides low-voltage driving and immunity to the IR-drop issue and OLED degradation. Furthermore, the threshold voltage and mobility-compensating capabilities are improved by both compensat

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12

Lee, Ryungyu, Keun-Yeong Choi, Hyukmin Kweon, Borina Ha, Do Hwan Kim, and Hojin Lee. "17‐4: Ultra‐high Resolution Full‐Color OLEDs Patterned by Photo‐Lithography." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 213–16. http://dx.doi.org/10.1002/sdtp.16528.

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In this paper, we present an ultra‐high resolution organic light‐ emitting diodes (OLEDs) pixels patterned by conventional photo‐lithography via imbuing high chemical and physical resistance to commercial light‐emitting polymers through the silicon networked orthogonal gel process. Especially, when silicon networked orthogonal polymers gel layers are pattered by reactive ion etch, a in‐situ non‐volatile etch‐blocking layer (EBL) is formed to prevent pattern distortion or damage. This unique feature not only slows the etch rate but also enhances the anisotropy of etch direction, leading to achi

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13

Sun, Wen-Shing, Ying-Shun Hsu, Chuen-Lin Tien, et al. "Design and Manufacture of 30-Degree Projection Lens for Augmented Reality Waveguide." Micromachines 15, no. 10 (2024): 1198. http://dx.doi.org/10.3390/mi15101198.

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A projection lens with a 30-degree field of view is developed for use in augmented reality (AR) glasses, including a waveguide combiner designed for a 0.35-inch LCoS panel. The entrance pupil diameter of the lens is 14 mm and the lens has an effective focal length of 16.443 mm; an F-number of 1.175. This paper has four key issues: optical projection lens design, lens manufacturing and assembly tolerance analysis, projection lens resolution testing, and AR glasses system resolution testing of panel images projected by the projection lens. After lens manufacture, the lens was tested, achieving a

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14

Yang, Jeehye, Kyung Sig Lee, Juoh Nam, et al. "P‐155: A High‐resolution Patterning of Electroluminescent Quantum Dot Pixels via Photo‐crosslinking." SID Symposium Digest of Technical Papers 55, no. 1 (2024): 1977–80. http://dx.doi.org/10.1002/sdtp.17982.

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The emergence of near‐eye displays for an extended reality (XR) has promoted the development of high‐resolution electroluminescence quantum dot (EL‐QD) devices. Direct photo‐lithography using photosensitive moieties is an effective technique for producing micrometer‐sized patterns of colloidal quantum dots. Here, we fabricated red, green, and blue quantum dot patterns with a resolution of >4,500 pixels per inch using an azide‐based photo‐crosslinking method, which is a simple and applicable to a versatile patterning or integrating process. The effect of QD ligands and solvents on the electr

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15

Wu, Meng-Chyi, Ming-Che Chung, and Cheng-Yeu Wu. "3200 ppi Matrix-Addressable Blue MicroLED Display." Micromachines 13, no. 8 (2022): 1350. http://dx.doi.org/10.3390/mi13081350.

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In this article, an active matrix (AM) micro light-emitting diode (MicroLED) display with a resolution of 1920 × 1080 and a high pixel density of 3200 pixels per inch (ppi) is reported. The single pixel with a diameter of 5 μm on the MicroLED array exhibits excellent characteristics, including a forward voltage of 2.8 V at 4.4 μA, an ideality factor of 1.7 in the forward bias of 2–3 V, an extremely low leakage current of 131 fA at −10 V, an external quantum efficiency of 6.5%, and a wall-plug efficiency of 6.6% at 10.2 A/cm2, a light output power of 28.3 μW and brightness of 1.6 × 105 cd/m2 (n

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16

Ye, Lingbin, Yun Gao, and Xingliang Dai. "60‐2: Invited Paper: Rapid transfer printing based on the structured donor substrate realizing full‐color perovskite nanocrystal patterns." SID Symposium Digest of Technical Papers 56, S1 (2025): 531–33. https://doi.org/10.1002/sdtp.18856.

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Considering that the efficiency of perovskite light‐emitting diodes has reached the threshold of high‐resolution display application, it is crucial to develop pixelization technology for perovskite. Transfer printing, as a physical process, avoids using solvents to prevent color cross‐contamination between red/green/blue (RGB) pixels, which makes it potential for realizing the pixelization of perovskite nanocrystals (PeNCs). Although the ultra‐high resolution PeNC patterns have been achieved by intaglio transfer printing, the multiple peeling and transfer processes are inconvenient and lead to

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17

Li, Meng Jie, Shui Fa Sun, Fang Min Dong, Hong Hai Liu, Yong Hong Shao, and Bruce Z. Gao. "TPEF Cardiomyocyte Image 3-D Cutting and Volume Measuring Based on ImageJ." Advanced Engineering Forum 6-7 (September 2012): 327–32. http://dx.doi.org/10.4028/www.scientific.net/aef.6-7.327.

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ImageJ is an open source image processing and analysis platform developed with Java. It can be applied to the analysis of clinical and scientific image effectively. A group of adult SD rat cardiac myocytes image using two-photon excitation fluorescence (TPEF) polarization imaging system is processed with ImageJ: 1)To achieve a panoramic display of the cardiomyocytes, we adopt 3D Viewer plugin to construct the 3D model; 2)Then, cutting the myocardial cell in any directions allows ones to observe the cell’s internal structure; 3) With the following image processing, contrast enhancement, noise r

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18

RAHMATULLAH, BAHBIBI, and ROSLI BESAR. "COMPARISON OF MORPHOLOGICAL-BASED SEGMENTATION METHODS FOR FETAL FEMUR LENGTH MEASUREMENTS." Journal of Mechanics in Medicine and Biology 07, no. 03 (2007): 247–63. http://dx.doi.org/10.1142/s0219519407002327.

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Measurement of fetal femur length is crucial for the estimation of fetal age and growth pattern. Due to the noisy nature of ultrasound images and the variation in image acquisition and measurement techniques, manual measurements are subject to interobserver and intraobserver variability. The motivation of this paper is to study the efficiency of automated methods used in the femur endpoint detection module of our proposed computer-assisted processing and analysis system, which is employed to determine the gestational age for promoting the standardization of fetal femur measurements, thus resul

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19

Yuan, Xu, Haowei Wang, Yang Liu, et al. "20‐2: High‐resolution Pixelated Quantum Dot Light Emitting Diodes via Electrohydrodynamic Printing Technology." SID Symposium Digest of Technical Papers 55, no. 1 (2024): 240–42. http://dx.doi.org/10.1002/sdtp.17499.

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In this study, we achieved high‐resolution pixelated QLED device with 500 pixels per inch (ppi) through electrohydrodynamic printing (EHD) technology. We optimize the EHD printing process by controlling ink viscosity and printing speed to obtain a uniform and flat emission layer film. Then, we prepared high‐resolution pixelated bottom‐emission and top‐emission PMQLED with maximum current efficiencies of 13.6 cd/A and 16.4 cd/A, respectively. Finally, we fabricated a 500 ppi red and green (R/G) dual‐color bottom‐emission QLED device using the EHD printing method. The successful preparation of t

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20

Earshia V., Diana, and Sumathi M. "Interpolation of Low-Resolution Images for Improved Accuracy Using an ANN Quadratic Interpolator." International Journal on Recent and Innovation Trends in Computing and Communication 11, no. 4s (2023): 135–40. http://dx.doi.org/10.17762/ijritcc.v11i4s.6319.

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The era of digital imaging has transitioned into a new one. Conversion to real-time, high-resolution images is considered vital. Interpolation is employed in order to increase the number of pixels per image, thereby enhancing spatial resolution. Interpolation's real advantage is that it can be deployed on user end devices. Despite raising the number of pixels per inch to enhances the spatial resolution, it may not improve the image's clarity, hence diminishing its quality. This strategy is designed to increase image quality by enhancing image sharpness and spatial resolution simultaneously. Pr

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21

Deumel, Sarah, Albert van Breemen, Gerwin Gelinck, et al. "High-sensitivity high-resolution X-ray imaging with soft-sintered metal halide perovskites." Nature Electronics 4, no. 9 (2021): 681–88. http://dx.doi.org/10.1038/s41928-021-00644-3.

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AbstractTo realize the potential of artificial intelligence in medical imaging, improvements in imaging capabilities are required, as well as advances in computing power and algorithms. Hybrid inorganic–organic metal halide perovskites, such as methylammonium lead triiodide (MAPbI3), offer strong X-ray absorption, high carrier mobilities (µ) and long carrier lifetimes (τ), and they are promising materials for use in X-ray imaging. However, their incorporation into pixelated sensing arrays remains challenging. Here we show that X-ray flat-panel detector arrays based on microcrystalline MAPbI3 c

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22

Cai, Jiangwei, Tan Zhou, Yishen Xu, and Xin Zhu. "A High-Resolution Magnetic Field Imaging System Based on the Unpackaged Hall Element Array." Applied Sciences 14, no. 13 (2024): 5788. http://dx.doi.org/10.3390/app14135788.

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We have designed a high-resolution magnetic field imaging system using 256 unpackaged Hall elements. These unpackaged Hall elements are arranged in a Hall linear array, and the distance between adjacent elements reaches 255 µm. The sensitivity of the unpackaged Hall element array can be adjusted using a computer to measure magnetic environments with different magnetic field strengths. High-resolution magnetic field images of 256 × 256 pixels can be generated by moving the array using the X–Y axis motorized rail. This spatial resolution can reach 99.61 pixels per inch (ppi). This rail allows fo

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23

Zhou, Tianshen, Shuying Ma, Daquan Yu, Ming Li, and Tao Hang. "Development of Reliable, High Performance WLCSP for BSI CMOS Image Sensor for Automotive Application." Sensors 20, no. 15 (2020): 4077. http://dx.doi.org/10.3390/s20154077.

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To meet the urgent market demand for small package size and high reliability performance for automotive CMOS image sensor (CIS) application, wafer level chip scale packaging (WLCSP) technology using through silicon vias (TSV) needs to be developed to replace current chip on board (COB) packages. In this paper, a WLCSP with the size of 5.82 mm × 5.22 mm and thickness of 850 μm was developed for the backside illumination (BSI) CIS chip using a 65 nm node with a size of 5.8 mm × 5.2 mm. The packaged product has 1392 × 976 pixels and a resolution of up to 60 frames per second with more than 120 dB

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24

Yang, Jhou-Pu, Feng-Ying Wu, Pei-Sin Wang, and Huang-Ming Philip Chen. "Characterization of the spatially anamorphic phenomenon and temporal fluctuations in high-speed, ultra-high pixels-per-inch liquid crystal on silicon phase modulator." Optics Express 27, no. 22 (2019): 32168. http://dx.doi.org/10.1364/oe.27.032168.

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25

Bhuvaneshwari, T., N. Ramadevi, and E. Kalpana. "Face Quality Detection in a Video Frame." International Journal for Research in Applied Science and Engineering Technology 11, no. 8 (2023): 2206–11. http://dx.doi.org/10.22214/ijraset.2023.55559.

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Abstract: Face detection technology is often used for surveillance of detecting and tracking of people in real time. The applications using these algorithms deal with low quality video feeds having less Pixels Per Inch (ppi) and/or low frame rate. The algorithms perform well with such video feeds, but their performance deteriorates towards high quality, high data-per-frame videos. This project focuses on developing such an algorithm that gives faster results on high quality videos, at par with the algorithms working on low quality videos. The proposed algorithm uses MTCNN as base algorithm, an

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26

Bahr, Joachim, Julian Schirmer, and Marcus Reichenberger. "Functional Printing of Silver Nano Ink on Injection Molded Polymeric Substrates." Applied Mechanics and Materials 805 (November 2015): 139–46. http://dx.doi.org/10.4028/www.scientific.net/amm.805.139.

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Over the last decades ink-jet printing has developed in many applications. The direct writing of materials such as silver (for conductive circuits) or polymers (for insulation or second layer) is an attractive method to reduce costs and save raw materials. In this article we investigate the geometrical and electrical properties of conductive circuit lines on thermoplastic substrates, depending on the printing parameters such as line width, orientation of the lines and density of the printed drops (dots per inch = dpi)First the surface of the substrates is scanned by a confocal laser scanner. T

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27

Eleroğlu, Hasan. "Beç Tavuklarında (Numida meleagris) Sayısal Görüntü Analizi ve Matematiksel Formüller Kullanılarak Yumurta Kalite Özelliklerinin Belirlenmesi." Turkish Journal of Agriculture - Food Science and Technology 9, no. 11 (2021): 2056–64. http://dx.doi.org/10.24925/turjaf.v9i11.2056-2064.4839.

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A total of 200 Guinea fowl (Numidae meleagris) eggs were obtained from guinea fowl flock at the age of 42 weeks of age, which are breeding at an altitude of 1240 m in the Wild Animals Breeding Station affiliated to Ministry of Forest and Water Affairs in Yozgat/Turkey. Eggs were taken at a resolution of 72 pixels per inch and 5184 × 3456 pixels in size, with the individual egg weights. Average Projection area (16,07 cm2), Perimeter (15,82 cm), Circularity (0,81), Height (5,17 cm), Width (4,04 cm), Mean grey value (82,82), Semi axis (2,02 cm), First long half height (2,96 cm), Second short half

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28

Khalil, Nida, Maheen Danish, and Kanza Zafar. "A Node Point Approach for Real-Time Hand Gesture Recognition Using Support Vector Machines (SVM)." Pakistan Journal of Engineering, Technology and Science 12, no. 2 (2024): 39–54. https://doi.org/10.22555/pjets.v12i2.1086.

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Gesture recognition systems have become increasingly popular in recent years due to their ability to improve the user experience and accessibility in real time. However, accurate and efficient hand gesture recognition remains a challenge, especially in dynamic environments. This study presents real-time hand gestures and poses using computer vision. Fundamentally, the system can identify and categorize a wide range of hand movements through real-time analysis of the node connect points of the user's fingers. Every successive point is rendered in such a way that associations between several poi

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29

Lee, Jun Yeub, Byeong-Kwon Ju, and Kwan Hyun Cho. "High-Resolution Patterning of Organic Emitting-Layer by Using Inkjet Printing and Sublimation Transfer Process." Nanomaterials 12, no. 9 (2022): 1611. http://dx.doi.org/10.3390/nano12091611.

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We implemented ultra-high resolution patterns of 2822 pixels-per-inch (PPI) via an inkjet printing and vacuum drying process grafted onto a sublimation transfer process. Co-solvented ink with a 1:1 ratio of N,N-dimethylformamide (DMF) to ortho-dichlrorobenzene (oDCB) was used, and the inkjet driving waveform was optimized via analysis of Ohnesorge (Oh)—Reynolds (Re) numbers. Inkjet printing conditions on the donor substrate with 2822 PPI microchannels were investigated in detail according to the drop space and line space. Most sublimation transferred patterns have porous surfaces under drying

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30

Zhang, Shuhan, Yun Zhang, Hongyu Qin та ін. "Impact of KOH Wet Treatment on the Electrical and Optical Characteristics of GaN-Based Red μLEDs". Crystals 15, № 4 (2025): 288. https://doi.org/10.3390/cryst15040288.

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Micro-size light-emitting diodes (μLEDs) are high-brightness, low-power optoelectronic devices with significant potential in display technology, lighting, and biomedical applications. AlGaInP-based red LEDs experience severe size-dependent effects when scaled to the micron level, and addressing the fabrication challenges of GaN-based red μLED arrays is crucial for achieving homogeneous integration. This study investigates the employment of KOH wet treatments to alleviate efficiency degradation caused by sidewall leakage currents. GaN-based red μLED arrays with pixel sizes ranging from 5 × 5 µm

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31

Jin, Yiwei, Jiankui Chen, Wei Chen, and Zhouping Yin. "Study of Charged Nanodroplet Deposition into Microcavity Through Many-Body Dissipative Particle Dynamics." Micromachines 16, no. 3 (2025): 278. https://doi.org/10.3390/mi16030278.

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For a near-eye display, a resolution of over 10,000 pixels per inch (PPI) for the display device is needed to eliminate the “screen door effect” and have better display quality. Electrohydrodynamic (EHD) printing techniques, which have the advantages of a high resolution, wide material applicability and flexibility in patterning, have been widely used in the printing of high-resolution structures. However, due to factors such as the extremely small size of the droplets, the electric charge, the electric field, and the unavoidable positioning error, various deposition defects can occur. For dro

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Li, Danyang, Junjie Wang, Miaozi Li, et al. "Efficient red perovskite quantum dot light-emitting diode fabricated by inkjet printing." Materials Futures 1, no. 1 (2022): 015301. http://dx.doi.org/10.1088/2752-5724/ac3568.

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Abstract Perovskite quantum dots (PeQDs) are considered potential display materials due to their high color purity, high photoluminescence quantum yield (PLQY), low cost and easy film casting. In this work, a novel electroluminescence (EL) device consisting of the interface layer of long alkyl-based oleylammonium bromide (OAmBr), which passivates the surface defects of PeQDs and adjusts the carrier transport properties, was designed. The PLQY of the OAmBr/PeQD bilayer was significantly improved. A high-performance EL device with the structure of indium tin oxide/poly(3,4-ethylenedioxythiophene

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Lee, Sein, Taehoon Sung, Min-Kyu Song, and J. Y. Kwon. "Vertical Oxide Channel Thin Film Transistor for Ultra-High-Resolution Display." ECS Meeting Abstracts MA2022-01, no. 31 (2022): 1334. http://dx.doi.org/10.1149/ma2022-01311334mtgabs.

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The significance of backplane devices for ultra-high-resolution (UHR) display has increased with the recent development of augmented reality (AR) and virtual reality (VR) devices. Since the human visual resolution can distinguish up to 60 pixels per degree (PPD), the AR/VR device panel needs at least 3000 pixels per inch (PPI) to exceed the human retina resolution limit for clear display without screen effect. As a results, the unit pixel pitch of thin film transistor (TFT) for UHR display should be not only smaller than a few micrometers (~3 μm), TFT channel length should also be sub-micromet

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Budi, Dwi Satoto, Utoyo Imam, Rulaningtyas Riries, and Budi Khoendori Eko. "An improvement of Gram-negative bacteria identification using convolutional neural network with fine tuning." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 3 (2020): 1397–405. https://doi.org/10.12928/TELKOMNIKA.v18i3.14890.

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This paper proposes an image processing approach to identify Gram-negative bacteria. Gram-negative bacteria are one of the bacteria that cause lung lobe damage-bacterial samples obtained through smears of the patient's sputum. The first step bacterium should pass the pathogen test process. After that, it bred using Mc Conkey's media. The problem faced is that the process of identifying bacterial objects is still done manually under a fluorescence microscope. The contributions offered from this research are focused on observing bacterial morphology for the operation of selecting shape f

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McConnell, James, and L. Robert Barber. "A Print-on-demand System for Producing Instructional and Extension Materials." HortScience 30, no. 4 (1995): 901G—902. http://dx.doi.org/10.21273/hortsci.30.4.901g.

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A Print-on-Demand (POD) System was developed to expand the availability of printed extension and educational materials. The layouts are developed on a computer using text files and digital images. Images can be edited with graphics programs before insertion into the layouts. The completed materials are stored, in final format, on disk and are printed on an as-needed basis or distributed over computer networks. The system greatly reduces the production time to a finished product and gives great flexibility in revising publications. The basic POD system consists of a computer, a mass storage dev

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McConnell, James, and L. Robert Barber. "A Print-on-demand System for Producing Instructional and Extension Materials." HortScience 30, no. 4 (1995): 901G—902. http://dx.doi.org/10.21273/hortsci.30.4.901.

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Анотація:

A Print-on-Demand (POD) System was developed to expand the availability of printed extension and educational materials. The layouts are developed on a computer using text files and digital images. Images can be edited with graphics programs before insertion into the layouts. The completed materials are stored, in final format, on disk and are printed on an as-needed basis or distributed over computer networks. The system greatly reduces the production time to a finished product and gives great flexibility in revising publications. The basic POD system consists of a computer, a mass storage dev

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Ganesh, Anand. "Efficient Cross-Platform Application Development for Gaming Ecosystems." International Scientific Journal of Engineering and Management 04, no. 02 (2025): 1–7. https://doi.org/10.55041/isjem02251.

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Abstract—This paper explores cross-platform application de- velopment optimizations for console and PC, highlighting the unique challenges and solutions necessary to deliver seamless user experiences across a diverse range of devices. On the development side, the limited tool sets available on non-PC platforms require a streamlined workflow centered around PC-based development, while ensuring that testing on the actual devices accounts for discrepancies in aspects like resolution, aspect ratio, and pixels per inch. Remote network inspectors and debuggers are crucial for identifying and resolvi

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Lee, Juhui, Soyoon Kwon, Jong Hoon Kim, and Kwang Gi Kim. "Development of an Automatic Pill Image Data Generation System." Healthcare Informatics Research 29, no. 1 (2023): 84–88. http://dx.doi.org/10.4258/hir.2023.29.1.84.

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Objectives: Since the easiest way to identify pills and obtain information about them is to distinguish them visually, many studies on image processing technology exist. However, no automatic system for generating pill image data has yet been developed. Therefore, we propose a system for automatically generating image data by taking pictures of pills from various angles. This system is referred to as the pill filming system in this paper.Methods: We designed the pill filming system to have three components: structure, controller, and a graphical user interface (GUI). This system was manufactur

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Fujinami-Yokokawa, Yu, Nikolas Pontikos, Lizhu Yang, et al. "Prediction of Causative Genes in Inherited Retinal Disorders from Spectral-Domain Optical Coherence Tomography Utilizing Deep Learning Techniques." Journal of Ophthalmology 2019 (April 9, 2019): 1–7. http://dx.doi.org/10.1155/2019/1691064.

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Purpose. To illustrate a data-driven deep learning approach to predicting the gene responsible for the inherited retinal disorder (IRD) in macular dystrophy caused by ABCA4 and RP1L1 gene aberration in comparison with retinitis pigmentosa caused by EYS gene aberration and normal subjects. Methods. Seventy-five subjects with IRD or no ocular diseases have been ascertained from the database of Japan Eye Genetics Consortium; 10 ABCA4 retinopathy, 20 RP1L1 retinopathy, 28 EYS retinopathy, and 17 normal patients/subjects. Horizontal/vertical cross-sectional scans of optical coherence tomography (SD

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Isayev, K., O. Rasulov, and N. Sadigova. "Advanced photodetector for hybrid PET-MRI systems." Open Research Europe 4 (November 8, 2024): 247. http://dx.doi.org/10.12688/openreseurope.18695.1.

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Background Currently, a wide variety of silicon photomultipliers (SiPMs) are available, each designed for specific applications in fields such as science, medicine, and industry. Advances in production technology have led to the development of more sensitive and efficient photodiodes, which are critical for applications requiring precision, such as medical imaging. Methods A research group has been working on designing a highly sensitive photodiode to enhance the capabilities of next-generation PET-MRI scanners. This involves integrating micropixel avalanche photodiodes (MAPDs) to improve imag

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Huo, Si‐Tao, Li‐Qin Shao, Ting Dong, et al. "Real RGB printing AMOLED with high pixel per inch value." Journal of the Society for Information Display 28, no. 1 (2020): 36–43. http://dx.doi.org/10.1002/jsid.867.

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Yan Limin, 严利民, 夏明治 Xia Mingzhi, and 王子铭 Wang Ziming. "A Three Primary Multi-Subpixel Rendering Algorithm with Improved Pixel per Inch." Laser & Optoelectronics Progress 54, no. 12 (2017): 121101. http://dx.doi.org/10.3788/lop54.121101.

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Kim, Kyung Min, Seok Noh, Sujin Jung, et al. "24‐2: Facile Design of Integrated Gate Driver Circuit with Self‐aligned InGaZnO TFTs and Reliable Compensation Technology for 166 PPI WOLED Displays." SID Symposium Digest of Technical Papers 54, no. 1 (2023): 317–20. http://dx.doi.org/10.1002/sdtp.16556.

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In this research, we describe a facile design of white organic light emitting diode (WOLED) displays applicable to 8K4K resolution of large‐area displays. We demonstrated a 13.3‐inch diagonal size (166 pixel‐per‐inch) of WOLED display, including a self‐aligned oxide thin‐film transistors, simple pixel driving circuit, external compensation method, fast driving integrated gate driver circuit. The narrow bezel of 3.9 mm is realized when multi‐output gate driver circuit is applied. The required function for external compensation method is realized by the integrated gate driver circuit. The extern

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Lan, Lan, Jia Liu, Yang Liu, et al. "P‐34: The Effect Analysis of Display Quality According to the AMOLED Pixel Arrangement." SID Symposium Digest of Technical Papers 55, no. 1 (2024): 1500–1503. http://dx.doi.org/10.1002/sdtp.17838.

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In the AMOLED display, many factors affect the user's visual perception, such as color ratio, refresh rate and drive ability of array circuit, pixel density and so on. In the past, the primary idea to improve the precision and smoothness of the display quality is to increase the pixel per inch (PPI) and optimize the sub pixel rendering (SPR) algorithm between pixel units. At present, the PPI has gradually stabilized at 400+ grade for mobile phone display, and the IC driver algorithm corresponding to the pixel arrangement of each panel factory has also stabilized gradually, therefore, more effo

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Yuan, Shuo-Huang, Shih-Siang Yan, Yu-Shiuan Yao, Chung-Cheng Wu, Ray-Hua Horng, and Dong-Sing Wuu. "Process Integration and Interconnection Design of Passive-Matrix LED Micro-Displays With 256 Pixel-Per-Inch Resolution." IEEE Journal of the Electron Devices Society 8 (2020): 251–55. http://dx.doi.org/10.1109/jeds.2020.2967476.

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Yang, Jhou-Pu, Po-Sheng Chiu, and Chun-Wei Tsai. "7‐3: Analysis of a 1.2‐in. 4k2k LCOS Display Phase Modulator for Holographic Display Applications." SID Symposium Digest of Technical Papers 55, no. 1 (2024): 53–56. http://dx.doi.org/10.1002/sdtp.17451.

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This developed 1.2‐inch 4K2K LCOS with 76.0 lp/mm spatial resolution can still achieve high phase accuracy and obviously enlarge field‐of‐viewing (FOV) angle compared with previous 0.55‐inch 2K1K LCOS. The holographic image quality within phase‐only LCOS not only can be improved by using higher phase accuracy and compensation technologies, but also can realize the real 3D imaging into near‐eye displays to avoid the VAC phenomena. In addition to, the holographic 4K2K LCOS (26.6mm x 15.8mm) optical design can achieve lighter optical engine and reconstructed square (26.6mm x 26.6mm) image per eye

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Heo, Sanghyun, Joon Chul Goh, Taehun Lee, et al. "4032‐pixels per inch threshold voltage compensation pixel circuit for organic light‐emitting diode‐on‐silicon." Journal of the Society for Information Display, April 24, 2025. https://doi.org/10.1002/jsid.2067.

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AbstractVirtual reality (VR) headsets with pancake lenses require organic light‐emitting diode‐on‐silicon (OLEDoS) panels for higher pixel density and superior image quality. Achieving high‐quality OLEDoS panels necessitates integrating pixel compensation circuits within the limited pixel area of high‐resolution displays. However, reduced transistor count increases Vth variation, while smaller storage capacitors with higher parasitic capacitance degrade image quality. This study proposes a novel 7T1C pixel compensation circuit for 4032‐ppi OLEDoS panels operating at 8 V. The circuit minimizes

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Luo, Chengzhao, Yanhui Ding, Zhenwei Ren, et al. "Ultrahigh-resolution, high-fidelity quantum dot pixels patterned by dielectric electrophoretic deposition." Light: Science & Applications 13, no. 1 (2024). http://dx.doi.org/10.1038/s41377-024-01601-3.

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AbstractThe high pixel resolution is emerging as one of the key parameters for the next-generation displays. Despite the development of various quantum dot (QD) patterning techniques, achieving ultrahigh-resolution (>10,000 pixels per inch (PPI)) and high-fidelity QD patterns is still a tough challenge that needs to be addressed urgently. Here, we propose a novel and effective approach of orthogonal electric field-induced template-assisted dielectric electrophoretic deposition to successfully achieve one of the highest pixel resolutions of 23090 (PPI) with a high fidelity of up to 99%. Mean

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Kang, Haneul, Yeonsu Hwang, Chan-mo Kang, et al. "Investigating the electrical crosstalk effect between pixels in high-resolution organic light-emitting diode microdisplays." Scientific Reports 13, no. 1 (2023). http://dx.doi.org/10.1038/s41598-023-41033-4.

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AbstractOrganic light-emitting diode (OLED) microdisplays have received great attention owing to their excellent performance for augmented reality/virtual reality devices applications. However, high pixel density of OLED microdisplay causes electrical crosstalk, resulting in color distortion. This study investigated the current crosstalk ratio and changes in the color gamut caused by electrical crosstalk between sub-pixels in high-resolution full-color OLED microdisplays. A pixel structure of 3147 pixels per inch (PPI) with four sub-pixels and a single-stack white OLED with red, green, and blu

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Kong, Pengfei, Huishan Han, Guanxia Dai, et al. "A self-driven perovskite photodetector array for imaging application by suppressing optoelectrical crosstalk." APL Photonics 10, no. 4 (2025). https://doi.org/10.1063/5.0265680.

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With the advancement of photodetector technology, applying perovskite photodetectors in imaging sensors has become a pursued goal in the field of optoelectronics. The main challenges to integrating perovskite photodetectors for imaging are energy consumption and the optoelectrical crosstalk between pixels. Herein, a self-driven 10 × 10 perovskite photodiode-blocking diode photodetector array with a resolution of 89 pixels per inch (ppi) is presented. The device shows excellent responsivity, detectivity, and pixel-wise rectifying properties due to the integration of a blocking diode (BD) into t

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