Journal articles: 'LED display'

1

Niina, Tatsuhiko. "LED Display." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 76, Appendix (1992): 194–95. http://dx.doi.org/10.2150/jieij1980.76.appendix_194.

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Taguchi, Tsunemasa. "LED Display." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 87, no. 1 (2003): 42–47. http://dx.doi.org/10.2150/jieij1980.87.1_42.

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Teja, Pogula Sai. "Scrolling Text Display on 8x8 LED Dot Matrix using NodeMCU." International Journal for Research in Applied Science and Engineering Technology 9, no. VI (June 10, 2021): 601–4. http://dx.doi.org/10.22214/ijraset.2021.35034.

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Generally we use simple led regular static type display screen to deliver the message. Previously, to update the data either it may be large one it takes a long process to update data. Now a days scrolling type displays are more preferred over the static type displays. By adopting a programming device called NODEMCU, data can be displayed on dot matrix in scrolling manner. By adopting led 8x8 dot matrix using can controlled via IoT based system which controlled by mobile or laptop. Scrolling type text display boards, projects uses led dot matrix displays or regular outside purpose digital sign boards. The message scrolling displays are also type of scrolling LED display examples, presented here are nodemcu based led matrix display project. The led matrix is controlled using nodemcu by serial communication protocols. In this pair of 8*8 led Matrix display modules have used to display the transmitted message on Matrix display. nodemcu is heart of this project. The nodemcu is the transmitter to send data, and the receiver is led matrix display to display message on it.

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Sapkale, Darshan S., Rameshwar D. Mahajan, Vishal S. Patil, and Harish A. Patil. "Multicolour LED Scrolling Display." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (May 31, 2023): 6764–68. http://dx.doi.org/10.22214/ijraset.2023.53259.

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Abstract: Size of the display board can be increased row wise and column wise without making any changes in the LED's are a fantastic way to illuminate any kind of sign, be it lettering or panels. LED Dot-Matrix Displays are a common sight nowadays on streets, malls, buildings, parks and other public places. It is a way of visual information where large LCD and other display become too much expensive. The commonly seen displays are single colour or having 2 or 3 colours But here multi coloured LED display is being introduced .This project provides an efficient and scalable approach to LED Dot Matrix displays. The system is comprised of a tricolor dot matrix display panel with an interface circuit to a computer. It also comprises an executive program that runs on the computer for the display control of characters, decorative pattern or messages on the display panel. A multi colour LED Indoor Advertising Display can be used by companies to advertise even in bright day-light conditions. The display board displays any character entered from the host computer which is interfaced using USB to a microcontroller that initializes the led driver. The advantage of this project is that circuitry since display board is the repetition of a small independent module.

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Yamazaki, Shigeru. "LED Display." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 82, Appendix (1998): 320. http://dx.doi.org/10.2150/jieij1980.82.appendix_320.

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Chen, Fuhao, Chengfeng Qiu, and Zhaojun Liu. "Investigation of Autostereoscopic Displays Based on Various Display Technologies." Nanomaterials 12, no. 3 (January 27, 2022): 429. http://dx.doi.org/10.3390/nano12030429.

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The autostereoscopic display is a promising way towards three-dimensional-display technology since it allows humans to perceive stereoscopic images with naked eyes. However, it faces great challenges from low resolution, narrow viewing angle, ghost images, eye strain, and fatigue. Nowadays, the prevalent liquid crystal display (LCD), the organic light-emitting diode (OLED), and the emerging micro light-emitting diode (Micro-LED) offer more powerful tools to tackle these challenges. First, we comprehensively review various implementations of autostereoscopic displays. Second, based on LCD, OLED, and Micro-LED, their pros and cons for the implementation of autostereoscopic displays are compared. Lastly, several novel implementations of autostereoscopic displays with Micro-LED are proposed: a Micro-LED light-stripe backlight with an LCD, a high-resolution Micro-LED display with a micro-lens array or a high-speed scanning barrier/deflector, and a transparent floating display. This work could be a guidance for Micro-LED applications on autostereoscopic displays.

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Biwa, Goshi. "Micro LED Display." Journal of The Institute of Image Information and Television Engineers 73, no. 5 (2019): 939–42. http://dx.doi.org/10.3169/itej.73.939.

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Watanabe, Nobuo. "Large Display by LED." JOURNAL OF THE ILLUMINATING ENGINEERING INSTITUTE OF JAPAN 80, Appendix (1996): 329–30. http://dx.doi.org/10.2150/jieij1980.80.appendix_329.

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Sakai, Shiro. "Display Technologies Supporting Information Ege. Recent Trends of Display Devices. LED Displays." Journal of the Institute of Image Information and Television Engineers 51, no. 4 (1997): 492–94. http://dx.doi.org/10.3169/itej.51.492.

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Wu, Yifan, Jianshe Ma, Ping Su, Lijun Zhang, and Bizhong Xia. "Full-Color Realization of Micro-LED Displays." Nanomaterials 10, no. 12 (December 10, 2020): 2482. http://dx.doi.org/10.3390/nano10122482.

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Emerging technologies, such as smart wearable devices, augmented reality (AR)/virtual reality (VR) displays, and naked-eye 3D projection, have gradually entered our lives, accompanied by an urgent market demand for high-end display technologies. Ultra-high-resolution displays, flexible displays, and transparent displays are all important types of future display technology, and traditional display technology cannot meet the relevant requirements. Micro-light-emitting diodes (micro-LEDs), which have the advantages of a high contrast, a short response time, a wide color gamut, low power consumption, and a long life, are expected to replace traditional liquid-crystal displays (LCD) and organic light-emitting diodes (OLED) screens and become the leaders in the next generation of display technology. However, there are two major obstacles to moving micro-LEDs from the laboratory to the commercial market. One is improving the yield rate and reducing the cost of the mass transfer of micro-LEDs, and the other is realizing a full-color display using micro-LED chips. This review will outline the three main methods for applying current micro-LED full-color displays, red, green, and blue (RGB) three-color micro-LED transfer technology, color conversion technology, and single-chip multi-color growth technology, to summarize present-day micro-LED full-color display technologies and help guide the follow-up research.

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Wang, Xiu Zhen. "Study on Characteristics and Application of LED Displays." Applied Mechanics and Materials 635-637 (September 2014): 1105–8. http://dx.doi.org/10.4028/www.scientific.net/amm.635-637.1105.

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Currently, LED display is an information display technology that has strong function,high efficiency and wide scope of application.Since its development has occurred, LED display has experienced a number of technical improvements and adjustments. This paper studies the basic physical characteristics of LED displays, electroluminescent application status and ultra-high brightness of the display luminescence phenomena, and it proposes future development goals of LED display.

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Luiten, G. A., and B. J. W. ter Weeme. "Thermal management of LED-LCD TV display." Journal of the Society for Information Display 19, no. 12 (2011): 931. http://dx.doi.org/10.1889/jsid19.12.931.

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Hsiang, En-Lin, Ziqian He, Yuge Huang, Fangwang Gou, Yi-Fen Lan, and Shin-Tson Wu. "Improving the Power Efficiency of Micro-LED Displays with Optimized LED Chip Sizes." Crystals 10, no. 6 (June 8, 2020): 494. http://dx.doi.org/10.3390/cryst10060494.

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Micro-LED (light-emitting diode) is a potentially disruptive display technology, while power consumption is a critical issue for all display devices. In this paper, we develop a physical model to evaluate the power consumption of micro-LED displays under different ambient lighting conditions. Both power efficiency and ambient reflectance are investigated in two types of full color display structures: red/green/blue (RGB) micro-LEDs, and blue-LED pumped quantum dots color-conversion. For each type of display with uniform RGB chip size, our simulation results indicate that there exists an optimal LED chip size, which leads to 30–40% power saving. We then extend our model to analyze different RGB chip sizes, and find that with optimized chip sizes an additional 12% average power saving can be achieved over that with uniform chip size.

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WANG Xiao, 王. 骁., 苏寒松 SU Han-song, and 李昌禄 LI Chang-lu. "HDR image display algorithm based on LCD-LED dual modulation HDR display." Chinese Journal of Liquid Crystals and Displays 34, no. 1 (2019): 14–23. http://dx.doi.org/10.3788/yjyxs20193401.0014.

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Wu, Tingzhu, Chin-Wei Sher, Yue Lin, Chun-Fu Lee, Shijie Liang, Yijun Lu, Sung-Wen Huang Chen, Weijie Guo, Hao-Chung Kuo, and Zhong Chen. "Mini-LED and Micro-LED: Promising Candidates for the Next Generation Display Technology." Applied Sciences 8, no. 9 (September 5, 2018): 1557. http://dx.doi.org/10.3390/app8091557.

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Displays based on inorganic light-emitting diodes (LED) are considered as the most promising one among the display technologies for the next-generation. The chip for LED display bears similar features to those currently in use for general lighting, but it size is shrunk to below 200 microns. Thus, the advantages of high efficiency and long life span of conventional LED chips are inherited by miniaturized ones. As the size gets smaller, the resolution enhances, but at the expense of elevating the complexity of fabrication. In this review, we introduce two sorts of inorganic LED displays, namely relatively large and small varieties. The mini-LEDs with chip sizes ranging from 100 to 200 μm have already been commercialized for backlight sources in consumer electronics applications. The realized local diming can greatly improve the contrast ratio at relatively low energy consumptions. The micro-LEDs with chip size less than 100 μm, still remain in the laboratory. The full-color solution, one of the key technologies along with its three main components, red, green, and blue chips, as well color conversion, and optical lens synthesis, are introduced in detail. Moreover, this review provides an account for contemporary technologies as well as a clear view of inorganic and miniaturized LED displays for the display community.

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Jang, Bongkyun, Hyun‐Don Kim, Suwan Jeon, Jaegu Kim, Mikyung Lim, Kwang‐Seop Kim, Sejeong Won, Jaehwa Lee, Hak‐Joo Lee, and Jae‐Hyun Kim. "81‐2: Invited Paper: Highly Stretchable Color MicroLED Meta‐Display Without Image Distortion." SID Symposium Digest of Technical Papers 54, no. 1 (June 2023): 1137–39. http://dx.doi.org/10.1002/sdtp.16774.

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Recently, rollable and foldable displays have been commercialized based on organic light‐emitting diode (OLED) display technology. The next form‐factor challenge would be the realization of stretchable displays. Though many studies have targeted stretchable OLED displays, they have an intrinsic issue with the inextensible barrier coating. The micro‐LED displays are considered a promising solution for stretchable displays because of their high reliability without the barrier coating. This talk presents a highly stretchable micro‐LED display manufacturing technology with RGB micro‐LED pixels. We designed circuit boards made of the auxetic meta‐material with a Poisson's ratio of ‐1. These auxetic circuit boards provided our micro‐LED displays with high stretchability and distortion‐free images. We designed and developed a meta‐display manufacturing process for mass production, which is highly compatible with the conventional display manufacturing process on polyimide substrates.

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Gao, Zhiwen, Honglong Ning, Rihui Yao, Wei Xu, Wenxin Zou, Chenxiao Guo, Dongxiang Luo, Hengrong Xu, and Junlin Xiao. "Mini-LED Backlight Technology Progress for Liquid Crystal Display." Crystals 12, no. 3 (February 23, 2022): 313. http://dx.doi.org/10.3390/cryst12030313.

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As consumers pursue higher display quality, Mini-LED backlight technology has become the focus of research in the current display field. With its size advantage (100–200 μm), it can achieve one-thousand-level divisional dimming, and it can also be combined with quantum dot technology to greatly improve the contrast, color gamut, dark state and other element of the display performance of LCD displays. Mini-LED backlight technology is undoubtedly the most ideal solution to realize a highly dynamic range display of LCD displays, and has been widely commercialized in many fields such as TVs, tablet computers, notebook computers, and car monitors. This review mainly introduces the efforts made by researchers to eliminate the halo effect, thinning of the backlight module and reducing the backlight power consumption. The application of quantum dot technology in backlight is also presented. We predict that the number of Mini-LED backlight partitions is expected to reach a level of more than 3000 in the future, further utilizing the advantages of the small size in local dimming, but it will also inevitably be challenged by some issues such as power consumption and heat dissipation.

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18

Buckley, Edward. "13-3: Display Quality Measures for Direct Emission LED Displays." SID Symposium Digest of Technical Papers 47, no. 1 (May 2016): 142–45. http://dx.doi.org/10.1002/sdtp.10621.

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HIRATA, Hajime, Toyoharu TERADA, and Yoshiyuki ARAI. "Micro LED Display Manufacturing Solutions." Proceedings of Mechanical Engineering Congress, Japan 2020 (2020): S16303. http://dx.doi.org/10.1299/jsmemecj.2020.s16303.

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Fitriati, Andi, Muhammad Akil, and Arham Anwar. "Display LED Mekanis Berbasis Mikrokontroler." JTT (Jurnal Teknologi Terpadu) 4, no. 2 (October 1, 2016): 94. http://dx.doi.org/10.32487/jtt.v4i2.147.

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H M, Mr Elia Sundaram, Chandra Yogi S M, Gouthama B, Bheemlal M, and Manohar K L P. "Solar Powered LED Letters Display." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (May 31, 2023): 798–99. http://dx.doi.org/10.22214/ijraset.2023.51510.

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Abstract: The solar-powered LED letters display is a versatile and eco-friendly solution for outdoor signage and decoration. The system consists of a solar panel, battery, and LED lights, which work together to provide sustainable lighting. The solar panel absorbs energy from the sun and stores it in the battery, which powers the LED lights at night or during low-light conditions. One of the key advantages of the solar-powered LED letters display is its energy efficiency. Unlike traditional lighting solutions, which rely on grid power and consume a significant amount of energy, this system uses renewable energy sources and requires minimal maintenance. This makes it an ideal solution for off-grid areas, where traditional lighting is not readily available. Another advantage of the solar-powered LED letters display is its customization options. The LED lights can be programmed to display different colours and patterns, providing a unique and eye-catching display. This makes it ideal for advertising and branding, as well as for creating a festive atmosphere for events and celebrations. Overall, the solar-powered LED letters display is a sustainable, energy-efficient, and customizable solution for outdoor lighting and signage. Its ability to operate in off-grid areas and provide customizable lighting makes it an attractive option for businesses, event planners, and individuals looking for a unique and eco-friendly way to illuminate their outdoor spaces.

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Lu, Xiao, Ying He, and Hai Xia Wang. "Design of LED Display System for Robot Expression." Advanced Materials Research 753-755 (August 2013): 2058–61. http://dx.doi.org/10.4028/www.scientific.net/amr.753-755.2058.

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The real reproduction of the robot expression affects not only how well the robot can mimic mankind, but also whether the robot can be accepted or not. In this case, it is necessary to find a display mode that can mimic mankind. An improved new method, namely advanced led display mode is proposed in this paper. The realization process of the led display system is as follows: A robot expression to be displayed is first chosen, then the expression data is sent to microcontroller through the serial port communication technology, and finally the display of the corresponding expression on the led screen is controlled by the microcontroller by serial port interrupt mode. The design of the led display system is proposed for robot expression, including the selection of communication mode, control mode, scanning mode, and expression display.

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Ding, Kai, Vitaliy Avrutin, Natalia Izyumskaya, Ümit Özgür, and Hadis Morkoç. "Micro-LEDs, a Manufacturability Perspective." Applied Sciences 9, no. 6 (March 22, 2019): 1206. http://dx.doi.org/10.3390/app9061206.

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Compared with conventional display technologies, liquid crystal display (LCD), and organic light emitting diode (OLED), micro-LED displays possess potential advantages such as high contrast, fast response, and relatively wide color gamut, low power consumption, and long lifetime. Therefore, micro-LED displays are deemed as a promising technology that could replace LCD and OLED at least in some applications. While the prospects are bright, there are still some technological challenges that have not yet been fully resolved in order to realize the high volume commercialization, which include efficient and reliable assembly of individual LED dies into addressable arrays, full-color schemes, defect and yield management, repair technology and cost control. In this article, we review the recent technological developments of micro-LEDs from various aspects.

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Zhou, Hai Feng, Jing De Dong, and Yuan Qing Huang. "Design of Data Acquisition and LED Display System." Advanced Materials Research 468-471 (February 2012): 863–66. http://dx.doi.org/10.4028/www.scientific.net/amr.468-471.863.

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This paper set up a data acquisition system by AT89C52 single chip microcomputer as control core, using the RS-232 serial manner communicated with responsibled for data acquisition of microprocessor, and used LED to display. System can be divided into data acquisition module, serial communication module, control module, keyboard module, display module, etc. System of multi-channel data acquisition can be displayed in the LED after processed. The hardware circuit and software realized design functions :data acquisition and LED display.

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Lee, Kyung-Ryang, Jong-Un Kim, Sung-Dae Yeo, Seung-Il Cho, and Seong-Kweon Kim. "Study on Low Power LED Display Operation." Journal of the Korea institute of electronic communication sciences 10, no. 5 (May 31, 2015): 587–92. http://dx.doi.org/10.13067/jkiecs.2015.10.5.587.

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Lu, Xin-Hong, Jingshang Zhou, Liuqing Li, Tianmin Zhou, Zhanfeng Cao, and Guangcai Yuan. "P‐133: Research of Novel Splicing Technique on Glass‐based Micro LED Display." SID Symposium Digest of Technical Papers 54, no. 1 (June 2023): 1365–68. http://dx.doi.org/10.1002/sdtp.16837.

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With the rapid development of Micro LED display technology, glass‐based splicing solution has been an important project for large‐sized displays. Herein, a novel curvely bending technique was demonstrated, in which the non‐display areas of the Micro LED panel could be folded onto the back surface of the display areas. A curve border as narrow as 150 um was achieved, equal to that of BOE's aforepublicated side wiring technique. In view of the single‐side backplane process adopted, the manufacturing cost was considered to be significantly reduced, which made the bending technique a promising solution to the splicing Micro LED displays.

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Zhang, Chi, Xiao Guang Wu, and Cheng Jun Zhang. "Design and Implementation of LED Display Screen Controller Based on STM32 and FPGA." Applied Mechanics and Materials 268-270 (December 2012): 1578–82. http://dx.doi.org/10.4028/www.scientific.net/amm.268-270.1578.

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In order to realize point-light-source and hurdle lamp LED displays system, a kind of LED display screen controller design based on FPGA and STM32 is introduced by this paper. This design can quickly and easily receive display the data from USB, Ethernet and SD card interfaces through the STM32 processor, and use FPGA to realize data transmission throughput big operation of stable display by double RAM Ping-Pong operation This paper gives drive unit timing for TM1809 series LED drive chip as typical case. This design has applied to LED display controller with stability of reading data and excellent performance.

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Mao, Xinyue, Xifeng Zheng, Ruiguang Wang, Hongbin Cheng, and Yu Chen. "Variation of LED Display Color Affected by Chromaticity and Luminance of LED Display Primary Colors." Mathematical Problems in Engineering 2020 (September 27, 2020): 1–14. http://dx.doi.org/10.1155/2020/1612931.

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In recent years, the effect of LED display is increasingly important in the LED display field. Primary colors’ chromaticity and luminance of LED display as crucial elements influence the LED display color. Therefore, there is a need for color mapping algorithms that indicate the relationship between primary colors and display color’s chromaticity and luminance. In this paper, two mathematical models have been developed. One has shown the display color’s chromaticity and luminance affected by luminance of primary colors change. The other one has shown a complicated relationship that primary color is mixed by other primary colors to change chromaticity first and then the mixed primary is used as “new LED primary color.” In both mathematical models, CIE x ∗ y ∗ Y color space was used as the mutual color space; thus, there was a specific variation tendency of colors with luminance or chromaticity of primary colors change in this color space. The newly designed mathematical models can consistently guide us how to acquire the desired display color by changing luminance or chromaticity of primary colors. Therefore, it has important engineering application value.

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Sharma, Pankaj, Hema ., Mo Nseem Ansari, and Taniya . "Wireless Smart Notice Board Using Dot Matrix." International Journal for Research in Applied Science and Engineering Technology 11, no. 5 (May 31, 2023): 1298–304. http://dx.doi.org/10.22214/ijraset.2023.51736.

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Abstract: Whether a firm is for profit or not, the information sharing component of information technology is a major factor in all types of businesses. Nowadays, all company models depend on and use the capacity of advertising to market their goods and services. The present demand of the modern business and information world is for digital advertising. International airports, metro train stations, shopping centres, bus stops, etc. all employ scrolling LED dot matrix displays. Led displays are a good way to show information, but making the message dynamic is challenging since users must adjust the message content to meet their particular needs. The user must connect the Led display to the computer in order to change the message content. The wireless based dot matrix display creates the wireless connection between individual mobile and Led display in the event that the user requires pairing the Led display with the computer in order to change the message content, which makes it difficult to place the display board anywhere due to the dedicated and complex setting up pattern. It provides the facility of real time message displaying means the user can change the message content that is to be display. The message is sent from a mobile device to the LED display, and the microcontroller handles all processing for scrolling the message's content on the LED display. The project's goal is to create a wireless scrolling message board that allows the user to update the information without using a connection to connect the display board to a computer or laptop. The user has the option of using Bluetooth or Wi-Fi to refresh the message content.

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Jang, Cheol, Kukjoo Kim, and Kyung Cheol Choi. "Toward Flexible Transparent Plasma Display: Optical Characteristics of Low-Temperature Fabricated Organic-Based Display Structure." IEEE Electron Device Letters 33, no. 1 (January 2012): 74–76. http://dx.doi.org/10.1109/led.2011.2171314.

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Li, Jingwen, Chuhan Pan, Junxing Pan, Jiajun Lin, Mingli Lu, Junbin Fang, and Zoe Lin Jiang. "Long-Distance, Real-Time LED Display-Camera Communication System Based on LED Point Clustering and Lightweight Image Processing." Photonics 9, no. 10 (October 3, 2022): 721. http://dx.doi.org/10.3390/photonics9100721.

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LED displays can be used to realize the dual functions of display and communication simultaneously. However, existing LED display-based visible light communication (VLC) systems suffer due to their short transmission distance and are not practical. A long-distance, real-time display-camera communication (DCC) system is proposed in this paper. First, a LED-DCC point clustering scheme is proposed to increase the transmission distance by clustering multiple adjacent LED display points for improving the quality of the VLC signal captured by an image sensor. Then, a lightweight, back-forth, fast image processing algorithm is proposed to reduce the introduced additional computational complexity caused by point clustering and enhance the reliability of information extraction from the real-time captured images/video frames. The experimental system was implemented with a 2.2-inch 16 × 16 point LED display and the CMOS camera on the smartphone. Experimental results show that the proposed system can achieve a maximum data transmission distance of 7 m under a bit error rate (BER) of 0.5, which is about 9 times that of the previous LED-DCC system, and can achieve a data transmission distance of 175 cm under the 7% forward error correction (FEC) limit, which is about 12 times that of the previous LED-DCC system. Additionally, the decoding latency for extracting information from each video frame is only 13.26 ms, which guarantees real-time data reception.

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Huang, Jinpeng, Yi Xu, Binru Zhou, Huming Zhan, Peng Cao, Junxi Wang, Jinmin Li, Xiaoyan Yi, Anlian Pan, and Liancheng Wang. "Linearly polarized light emission from GaN micro-LEDs for 3D display." Applied Physics Letters 122, no. 11 (March 13, 2023): 111107. http://dx.doi.org/10.1063/5.0137993.

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A three-dimensional (3D) display provides an immersive user experience and represents the frontier of display technology. The 3D display based on polarizer films is relatively mature. However, the currently used polarizer films lead to bulk systems and low efficiency. Micro-light-emitting diodes (micro-LEDs) have the advantages of small size, high contrast, low power consumption, and high response frequency. The 3D micro-LED displays combine the characteristics of 3D display and the advantages of micro-LEDs simultaneously, which can be used in portable electronics or micro-LED projectors and provides users with 3D experience. Here, linearly polarized (LP) micro-LEDs with varied chip diameters are numerically and experimentally investigated. Subwavelength metal gratings are integrated directly on the p-GaN of micro-LEDs. A maximum extinction ratio of 14.17 dB and a corresponding energy loss of 50% are achieved directly from LP micro-LEDs under the injection current density of 200 A/cm2. The size-dependent effect of LP micro-LED is also investigated and it is found that smaller sized LP micro-LEDs have smaller extinction ratio due to sidewall light leakage. The reported GaN-based LP micro-LEDs have excellent potential to be utilized in 3D micro-LED displays.

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Song, Yidan, Shangshu Guan, Haijiang Yao, and Shun Tao. "Experimental Study on Voltage Sag Tolerance of LED Electronic Display." Journal of Physics: Conference Series 2136, no. 1 (December 1, 2021): 012023. http://dx.doi.org/10.1088/1742-6596/2136/1/012023.

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Abstract Widely used LED electronic displays have high requirements for power quality. Because of the status quo of LED technology update and the lack of related experimental work, this paper first analyzes the hardware composition of LED electronic display and switching power supply module. In addition, the paper points out that the transient tolerance of LED screens is mainly determined by switching power supply modules. Then, a test platform was built, and a certain type of LED screen was selected to investigate the influence of voltage temporary drop value and duration, phase jump, and initial Angle of temporary drop on the tolerance of LED electronic display. It provides data support for evaluating and managing the effects of voltage sags on LED electronic displays and the design of power supply schemes.

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Wong, Shing Kwong, Yung-Wei Chen, Zhen-Wei Huang, Boyan Dong, and Xin Wang. "49.1: Visual Quality System ‐ A Simulation Solution for Mini‐LED LCD Backlight Unit Optimization Targeting on High Quality and Accurate HDR Image Display." SID Symposium Digest of Technical Papers 54, S1 (April 2023): 340–43. http://dx.doi.org/10.1002/sdtp.16299.

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Local dimming technology has largely increased the effective contrast ratio of mini-LED displays. With suitable backlight and algorithm design, these devices are capable of rendering HDR images with extreme quality. A solution for mini-LED backlight optimization is presented in this work. VQS utilizes deterministic light propagation simulation and spectral analysis to predict display quality from design parameters. It provides display system manufacturers and local dimming algorithm developers a framework to easily optimize their designs.

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Huan, Shi Yu. "A SMS Based LED Electronic Display System." Applied Mechanics and Materials 182-183 (June 2012): 401–5. http://dx.doi.org/10.4028/www.scientific.net/amm.182-183.401.

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At present, the LED electronic display is widely applied in each kind of public area to announce all kinds of information. So it can make people feel facility, it can also expand the information audience.Display broadcast information needs regular replacement, and the methods are varied. In many cities,the present displays which are set up in the intersections of streets are quite scattered, and away from each others, so only the artificial update method is adopted. However, this approach relatively consumes more manpower and material resource. On the other hand it would cost much more time so that the information could not be broadcasted in time. A new idea of the information updating based on SMS (Short Messaging Service) is proposed in this paper. The GSM modems are all installed in controllers of the control center and the display terminals, and the GSM modems are controlled by the embedded software system to send and receive the message via AT commands. Therefore, the control center could send the updating information as SMS to all of display terminals in this way, and the terminals replace old information and broadcast the new information as soon as they received the news. This approach not only saves the manpower and the material resource, but also makes it possible to increase the information betimes.

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Wei, Minchen, Yu Hu, and Ming Ronnier Luo. "Observer metamerism to display white point between LCD and OLED displays." Color and Imaging Conference 2020, no. 28 (November 4, 2020): 366–69. http://dx.doi.org/10.2352/issn.2169-2629.2020.28.59.

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Displays with different primary sets were found to introduce perceived color mismatch between pairs that are computationally metameric and to affect the degree of observer metamerism. OLED display is becoming more and more popular than LCD display in different imaging systems. In this study, human observers used an LCD and eight OLED displays to match the color appearance of a D 70 white stimulus produced by a spectrally tunable LED device. It was found the chromaticities of the LCD display were significantly different from those of the OLED displays to achieve a match. When the colors were adjusted to have matched appearance, the chromaticities of the OLED displays were always shifted towards closer to the blackbody locus using the CIE 1931 Color Matching Functions (CMFs). The results also suggested that the CIE 2006 2° Color Matching Functions had the best performance.

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Chin, Seong-Ah. "Simulator Development for LED Display Design." Journal of the Korea Academia-Industrial cooperation Society 11, no. 12 (December 31, 2010): 5023–28. http://dx.doi.org/10.5762/kais.2010.11.12.5023.

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Li Qiang, 李强, 刘振泽 Liu Zhenze, 曹慧 Cao Hui, and 李义 Li Yi. "Parameter Configurable LED Display Control System." Laser & Optoelectronics Progress 55, no. 10 (2018): 101101. http://dx.doi.org/10.3788/lop55.101101.

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IGG Electronics Ltd. "Large LED display for local audiences." Displays 6, no. 2 (April 1985): 110. http://dx.doi.org/10.1016/0141-9382(85)90050-2.

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NIINA, Tatsuhiko. "Recent trends in LED display devices." Hyomen Kagaku 9, no. 4 (1988): 293–98. http://dx.doi.org/10.1380/jsssj.9.293.

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Yang, Zhiyong, En-Lin Hsiang, Yizhou Qian, and Shin-Tson Wu. "Performance Comparison between Mini-LED Backlit LCD and OLED Display for 15.6-Inch Notebook Computers." Applied Sciences 12, no. 3 (January 25, 2022): 1239. http://dx.doi.org/10.3390/app12031239.

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We evaluated and compared the performance of a 15.6-inch mini-LED backlit LCD (mLCD) with a commercial OLED (organic light-emitting diode) panel. Both displays exhibited outstanding properties, but the mLCD had advantages in peak brightness, gamma curve, luminance uniformity at low gray scales, color volume, power consumption, and ambient contrast ratio. In comparison with previous measurement methods, our color measurement adopted the reference method recently recommended by the International Committee for Display Metrology (ICDM). The LMK imaging photometer with a high-resolution CMOS sensor was employed to characterize the halo effect and reconstruct the real luminance profiles based on the non-ideal luminance profile of the OLED display. We also proposed a novel strategy to measure the point spread function of the backlight module.

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Sun, Jian She, Xiao Ning Feng, Yi Fei Sun, and Hui Zhao. "Synchronous Controller of LED Video Displays and LED Lighting Compatible." Advanced Materials Research 383-390 (November 2011): 6959–63. http://dx.doi.org/10.4028/www.scientific.net/amr.383-390.6959.

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The development of a large display and can control a variety of compatible lighting control system, the system is suitable for wide range control distance. Can be widely used in modern college park, landscape building, business building and landscaping all buildings, publicity, service, advertising and other large screen and lighting systems. Using large-scale high-speed FPGA technology, Gigabit fiber communication technology, through a multi-level processing and protocol conversion, can be terminal for the different display mode (divided into static, 2 sweep, sweep 4, 8, sweep, sweep five kinds of 16), data in the order, alignment methods, control methods, the preparation of their own in the FPGA, the protocol conversion module, through the software are free to choose set the display terminal type, to achieve 16 control port can be controlled separately different types of display terminal. Control distance up to 5000 meters or more. Effectively address all the original control system can not be compatible, not centralized control, can not share resources and control of the key problems of distance is too short.

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Cao, Xuan, Yan Wang, Kang Wang, Jie Lin, Yongxin Cui, and Xiuqi Huang. "24.1: Invited Paper: Micro‐LED 4.78 inch Tiled Display Modules with 100% Yield Achieved by Stamp Transfer Technology." SID Symposium Digest of Technical Papers 54, S1 (April 2023): 169–71. http://dx.doi.org/10.1002/sdtp.16254.

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Glass based Micro‐LED display, as one of the most promising advanced display technologies, has attracted increasing interests from academia and display industry. With collaborative work by panel makers, LED manufacturers, equipment and materials makers in the efforts to improve the yield and performance while reducing the cost, Micro‐LED is getting closer towards a possibility of mass production full‐process. Stamp mass transfer is the pioneer candidate along this roadmap. With extensive research in transfer, inspection and repair technology, Vistar has developed a full‐ process solution that can push the yield up to 100% on our splicing display units. In this paper, we introduce the 4.78 inch true bezel‐ less Micro‐LED panel, as building blocks towards free size large tiled displays. And by proofing the technology in Micro‐LED manufacture, this may lay out a milestone in the way towards the realization of industrial Micro‐LED products.

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Takamatsu, Mamoru, Yoshio Nakashima, Santaro Nakajima, and Yuukou Horita. "Display Colors with LED Traffic Information Board." IEEJ Transactions on Fundamentals and Materials 121, no. 9 (2001): 879–80. http://dx.doi.org/10.1541/ieejfms1990.121.9_879.

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Bao, Xingyu, Junxing Pan, Zetao Cai, Jingwen Li, Xia Huang, Renzhang Chen, and Junbin Fang. "Real-time display camera communication system based on LED displays and smartphones." Optics Express 29, no. 15 (July 9, 2021): 23558. http://dx.doi.org/10.1364/oe.431665.

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Akita, Junichi, and Hiroyuki Moriwaki. "Guerrilla Display: Huge LED Display Configuration System -- Its Design and Implementation." Journal of the Society for Art and Science 8, no. 2 (2009): 74–80. http://dx.doi.org/10.3756/artsci.8.74.

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M, Lakshmipathy, Santosh B. Panjagal, and S. Manjula Kumar. "Advanced Display System for Public Bus Transportation." INTERNATIONAL JOURNAL OF COMPUTERS & TECHNOLOGY 6, no. 1 (May 30, 2013): 302–10. http://dx.doi.org/10.24297/ijct.v6i1.4453.

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The bus arrival time at bus stops in urban traffic environment is highly unpredictable. This is due to random fluctuations in travel demands and interruptions caused by traffic system, incidents, and weather conditions. Providing real-time bus arrival information would enhance the credibility of the public transit system and thus render it more competitive among various other transportation modes. With the emergence of Global Positioning System (GPS) technologies, traffic data collection can be performed more efficiently.In this paper we are implementing The â€œADVANCED DISPLAY SYSTEMâ€ to enhance the public transportation system by giving the prior information of the buses arriving towards the bus stop to the people waiting for the bus. It consists of two modules. The first one is In-bus module and second one is Bus stop module. The In-bus module integrates the GPS receiver, GSM Modem, Microcontroller and control switches. This module is mounted to the bus. The Bus stop module is integrated with GSM modem, Microcontroller and LED matrix display. This Bus-Stop module is mounted at the Bus stops. the microcontroller processes the SMS received by the GSM modem and displays it in the LED matrix display. In the LED matrix display the bus number, source, destination station names of the bus, current location name of the bus, the time at which the bus is at the current location, actual time will be displayed.

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Zhanghu, Mengyuan, and Zhaojun Liu. "P‐67: Research of photoelectric performance GaN based green Micro‐LED ^†." SID Symposium Digest of Technical Papers 54, no. 1 (June 2023): 1731–34. http://dx.doi.org/10.1002/sdtp.16936.

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GaN‐based light‐emitting diode (LED) arrays are a promising technology in a wide range of applications. Research on temperature dependence performance is important in GaN‐ based LED. Display applications are still the focus of GaN‐ based LEDs, especially high‐definition (HD) displays. It is of great importance for HD display to researching green Micro‐LED device. we study the performance issues of 80μm green Micro‐LED devices include ideality factor at different temperatures, carrier concentration distribution, and optical properties. This research can help understand and fabrication high‐performance green Micro‐LED devices.

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Kim, Sang-Kyu, Ji-Hoon Lee, Won-Jae Jung, Hyo-Bin Jung, and Jun-Seok Park. "A Study on 16-Channel LED Driver IC for Full-Color LED Display." Transactions of The Korean Institute of Electrical Engineers 61, no. 9 (September 1, 2012): 1275–82. http://dx.doi.org/10.5370/kiee.2012.61.9.1275.

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Gilkey, Robert H., Brian D. Simpson, Douglas S. Brungart, Jeffery L. Cowgill, and Adrienne Janae Ephrem. "3D Audio Display for Pararescue Jumpers." Proceedings of the Human Factors and Ergonomics Society Annual Meeting 51, no. 19 (October 2007): 1349–52. http://dx.doi.org/10.1177/154193120705101916.

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Visual and audio navigations aids were compared in a virtual environment that depicted an urban combat search and rescue mission (CSAR). The participants' task was to rapidly move through a virtual maze depicted in a CAVE° to find a downed pilot, while dealing with automated hostile and friendly characters. The visual and audio displays were designed to present comparable information, which in separate conditions could be a simple realtime indication of the bearing to the pilot or to intermediate waypoints along the way. Auditory displays led to faster response times than visual displays (p = .011) and the waypoint display led to faster response times than the simple bearing display (p = .002). The results are considered in the context of the target CSAR application.

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Journal articles on the topic 'LED display'

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