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urban company

urban company The cutting-edge digital platform Urban Company, formerly known as UrbanClap, has completely changed how consumers obtain residential services. Abhiraj Bhal, Varun Khaitan, and Raghav Chandra founded Urban Company in November 2014; since then, it has quickly grown throughout India and entered foreign markets. Urban Company, which aims to provide consumers with convenience and dependability while organizing and empowering service professionals, has become a household name in the home services industry.   urban company The Origin: The founders of Urban Company were inspired by their personal struggles to locate trustworthy and knowledgeable service providers for a range of domestic duties. Graduates of the Indian Institute of Technology (IIT) and the Indian School of Business (ISB), Abhiraj Bhal, Varun Khaitan, and Raghav Chandra saw the need for a platform that could easily match people with reliable service providers. Thus, the need to address the issues that service providers and customers in the fragmented home services industry faced gave rise to Urban Company. The Groundwork: the functions as an online marketplace that links customers with numerous service providers that provide services in various areas. Users may conveniently browse among a variety of services, read the profiles of service providers, schedule appointments, and make payments using the this platform. The platform makes it simpler for customers to obtain high-quality services from qualified specialists by providing transparency and ease of use. Services Provided: Urban Company provides a wide range of services to suit various requirements and tastes. Among the important service categories are: Beauty and Wellness: Services including makeup, grooming, at-home spa treatments, and salon services. Home maintenance and repairs include carpentry, painting, plumbing, electrical work, appliance repair, and other activities.Cleaning services include carpet, sofa, automobile, and house cleaning, among others Lifestyle: Yoga, fitness instruction, party organizing, event management, and tutoring services. The platform’s architecture provides a one-stop shop for a range of home necessities, making it simple for users to locate and reserve services that meet their needs. Network of Partners: it broad network of partners, or service providers, is a major factor in its success. To guarantee the provision of high-quality services, these specialists go through a rigorous selection procedure that includes background checks, skill evaluations, and training. By linking them with a large consumer base, Urban Company gives these professionals a platform to demonstrate their abilities, establish their reputation, and expand their businesses. Innovation and Technology: it uses innovation and technology to improve customer experience, increase operational efficiency, and raise service standards. The platform offers secure payment choices, intuitive booking processes, real-time service request tracking, and user-friendly interfaces. The company also makes investments in AI-driven algorithms, machine learning, and data analytics to maximize customer-service professional matching, enhance overall efficiency, and improve service recommendations. Growth and Extension: it has rapidly grown and expanded since its founding, both in terms of geographic reach and service offerings. Prior to growing to other Indian cities, the company concentrated on building a significant presence in important cities like Delhi, Mumbai, Bangalore, and Pune. it has expanded both domestically and internationally, entering areas such as Singapore, Australia, and the United Arab Emirates (UAE). The company has been able to reach a wider customer base and penetrate new areas thanks to its global expansion. Capital and Partners: it has garnered substantial interest from financiers, obtaining financing from notable venture capital companies and investors. Among the prominent investors are Accel Partners, Steadview Capital, Vy Capital, Sequoia Capital, and others. The business has raised money through several rounds of successful fundraising, which has enabled it to invest in technology, grow, and broaden its activities. Effect and Acknowledgment: The creative home services model adopted by Urban Company has had a significant effect on service providers as well as customers. The platform provides users with dependability, convenience, and easy access to a variety of services. Service providers, on the other hand, gain from the platform’s enhanced visibility, commercial prospects, and professional development. The business has won numerous awards and recognition for its contributions to the home services sector. Urban Company has received recognition for its creative business strategy, technology innovations, and beneficial social impact from a number of media sources. Obstacles and Prospects for the Future and  has had a great deal of success, but as it grows and expands, it also faces a number of difficulties. Among the major obstacles arepreserving client satisfaction, controlling competition, and negotiating the intricacies of various market regulations. In the future, Urban Company wants to keep pushing its worldwide expansion efforts, increase the range of services it offers, and further solidify its position in the market. The company is still dedicated to its goal of using innovation, technology, and top-notch service delivery to revolutionize the home services sector and empower both customers and service providers. To sum up, Urban Company has become a trailblazing force in the home services sector by providing a revolutionary platform that links clients with knowledgeable experts.  is redefining home services and their user experience with its cutting-edge business model, technological prowess, and dedication to quality. Its impact on millions of lives worldwide is long-lasting.

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How to repair lcd tv panel : Steps and Considerations for Troubleshooting and Restoration

led tv panel repair How to repair lcd screen tv How to repair lcd tv panel ? Repairing an LCD TV panel is a complex and delicate process that typically requires professional expertise and specialized tools. It’s important to note that attempting to repair the LCD TV panel yourself can be risky and may further damage the device. However, if you still want to explore the possibility of repairing it yourself, here are some general steps to consider: Identify the issue: sony tv repair Determine what specific problem you are experiencing with the LCD TV panel. Common issues include dead pixels, vertical or horizontal lines, backlight problems, or a completely blank screen. Research and gather information: led panel repair near me Look for online resources, including manufacturer’s manuals, repair guides, and forums, that provide insights into the specific issue you are facing. This will help you understand the complexity of the repair and potential solutions.led panel repair near me Safety precautions: Ensure you have a clean and static-free workspace. Disconnect the TV from the power source and allow it to discharge for a while before starting any repairs. This will help avoid electric shocks and protect both you and the TV.tv panel repair Assess the feasibility: led panel repair near me LCD panels are intricate and fragile components. Assess the feasibility of repairing the panel by considering factors such as cost, availability of replacement parts, and your technical skills. Check connections: Inspect the connections between the panel and the internal components of the TV. Loose or damaged connections may cause display issues. Gently reseat any connectors that appear loose, making sure to handle them with care. Repair dead pixels: There are some online tools and software available that claim to fix dead pixels by rapidly changing the colors displayed on the screen. However, the success rate of such methods is generally low, and they may not work for severe pixel issues. Seek professional assistance: If the problem is beyond your expertise or requires component-level repair, it is recommended to consult a professional technician or contact the manufacturer’s authorized service center. They will have the necessary skills, tools, and access to replacement parts to perform repairs safely and effectively. Remember, opening up the TV panel without proper knowledge can lead to irreversible damage, and it may be more cost-effective and safer to seek professional assistance. So, Contact Lediha Tv and Get Repair tv Lediha TV takes pride in their ability to provide swift and efficient service. By simply dialing their contact number, 7770074243, you can schedule a service call and have their expert technicians arrive at your doorstep in no time. This eliminates the need for transporting your TV to a service center and reduces downtime, ensuring you can quickly get back to enjoying your favorite shows and movies.

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Metro LED TV Installation Services: Lediha TV- Your One-Stop Solution for TV Repair

Enhance Your TV Experience with Lediha TV: Your Trusted Display Service Partner Welcome to our blog, where we dive into the realm of top-notch TV repair services and Metro LED TV Installation Services display solutions. Today, we shine the spotlight on Lediha TV, a trusted provider of TV repair services and specialized Metro LED TV installations. With their comprehensive range of services and unwavering commitment to customer satisfaction, Lediha TV has solidified its position as the go-to service provider for all your TV-related needs. Metro LED TV Installation Services Join us as we explore their exceptional offerings and discover why they are a cut above the rest. Expert TV Repair Services: When it comes to TV repairs, Lediha TV excels in providing prompt and reliable solutions. Their team of highly skilled technicians possesses in-depth knowledge and expertise in handling all types of TV models and brands. Metro LED TV Whether it’s a cracked screen, audio issues, power failures, or malfunctioning remote controls, Lediha TV has the know-how to diagnose and resolve the problem efficiently. With their meticulous attention to detail and utilization of genuine parts, you can trust them to restore your TV’s functionality to its optimal state. Specialized Metro LED TV Installation: If you’re in need of professional Metro LED TV installation services, Lediha TV has got you covered. With their extensive experience in handling Metro LED TVs, they ensure seamless installations that guarantee stunning visuals and optimal performance. From precise mounting to configuring the settings, their technicians meticulously handle every aspect of the installation process. Rest assured, your Metro LED TV will be set up flawlessly, providing you with an immersive viewing experience. Comprehensive Display Service Contracts: Lediha TV goes above and beyond by offering comprehensive display service contracts. Whether it’s for airports, railway stations, or any other commercial space, they tailor their services to meet your specific requirements. Metro LED TV From installation and regular maintenance to troubleshooting and repairs, their service contracts provide you with peace of mind and ensure uninterrupted display functionality. Contact Lediha TV: For all your TV repair needs, Metro LED TV installations, and display service contracts, reach out to Lediha TV. You can contact them at 7770074243, where their friendly and knowledgeable staff will be ready to assist you. Their prompt response and commitment to customer satisfaction make them the trusted choice for all your TV-related services. Conclusion: When it comes to TV repair services, Metro LED TV installations, and comprehensive display service contracts, Lediha TV stands out as the ultimate service provider. Their expertise, attention to detail, and commitment to customer satisfaction make them the go-to destination for all your TV needs. Contact Lediha TV today at 7770074243 and experience their exceptional services firsthand. Trust them to restore your TV’s functionality, elevate your viewing experience, and provide reliable display solutions that exceed your expectations.

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Google Urges Vigilance: Unsecure Android TV OS Boxes Pose Security Risks

Android TV OS Boxes Android TV OS Boxes According to researchers, several common low-cost Android TV devices and dongles already have malware pre-installed. Here’s a simple guide on how to determine whether your Android TV OS device is authorized and covered by Google Play Protect. In the past several years, Android TV boxes have experienced tremendous growth in popularity. Android TV OS Boxes Security experts have lately revealed that many highly regarded Android TV set-top boxes and dongles available on websites like Amazon come pre-installed with malware. Android TV OS Boxes The majority of these products, according to Google, are branded as Android TV OS-powered boxes, although they were really constructed using the Android Open Source Project, and some even include Google apps and the Play Store without a Google license. However, just because a set-top box or dongle ships with Android TV doesn’t imply Google has approved it. The tech giant recognized the problem and provided instructions on how to determine whether your device was created with the Android TV OS and is Play Protect certified. Make sure the manufacturer is listed on the Android TV website under the ‘Global Partners’ section if you are considering buying an Android TV. Check the Google Play Protect status if the device isn’t shown for whatever reason. How to use Android TV to check Google Play Protect status Simply launch the Google Play Store on your Android TV and press the profile symbol in the upper right corner of the screen to get started. Now, Android TV OS Boxes navigate to “Settings,” choose “About,” and select the “Play Protect” option. You may check here to see if Google has approved the Android TV or not. In the absence of certification, the device may not be secure and may not receive Android system or app upgrades since Google doesn’t have a record of the Android compatibility test results. CONTACT US

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Smart TV Troubleshooting tips

Smart TV Troubleshooting Tips: Introducing Lediha TV Repair Service: Your Smart TV Troubleshooting Experts Smart TV Troubleshooting tips  Are you experiencing issues with your smart TV? Is your favorite show interrupted by a blank screen or distorted audio? Don’t worry, Lediha TV Repair Service is here to help. We specialize in diagnosing and resolving problems with smart TVs, ensuring that you can enjoy your entertainment without any disruptions. At Lediha TV Repair Service, we understand the frustration that comes with technical difficulties. Smart TV Troubleshooting tips are complex devices that rely on various components and software to deliver an immersive viewing experience. Our team of expert technicians has extensive knowledge and experience in troubleshooting and repairing smart TVs from leading brands. Whether you’re dealing with a blue, green, or black screen, audio-video synchronization issues, pixelation, or distorted picture quality, our technicians are equipped with the skills to identify the root cause of the problem. We’ll work diligently to get your smart TV back up and running smoothly. Smart TV Troubleshooting tips Smart TV Troubleshooting tips With the advancement of technology, smart TVs now offer a wide range of features, including internet connectivity and web-based functionalities. If you’re having trouble connecting your smart TV to the internet, streaming apps, or other smart devices, our team can assist you in setting up and troubleshooting these connectivity issues. Our service extends beyond basic troubleshooting. If your smart TV screen has lines or cracks, our technicians can assess the situation and determine if the panel needs to be replaced. We strive to provide comprehensive solutions to ensure your smart TV functions optimally. The TV turns on but shows a blue, green, or black screen: Check if your satellite or cable box is powered on and connected properly. Use the remote control to select the correct input/source on the TV. Ensure all connections behind the TV are secure. Reset the cable box by unplugging and plugging it back in. Try connecting the cable box to another device to determine whether the box or the TV is the issue. Contact your service provider if needed. Video not matching audio: Adjust the “audio delay” settings in your TV or cable box to synchronize the video and audio. Hearing an echo: If you have a separate sound system like a soundbar, mute or disable the TV’s speakers and use only the external sound system. Picture pixelating or breaking up: Check all connections between the wall, cable/satellite box, and the TV to ensure they are secure. If the problem persists, contact your cable or satellite provider. Picture squashed, stretched, or cropped: Adjust the picture size settings on your TV (zoom, wide, aspect ratio) to “Direct” or “Just-Fit” for the best display. When using older devices or gaming systems, set the video to 4:3 to avoid stretching. Disable Overscan on your TV if you’re using a computer to prevent strange cropping. Flatscreen Plasma, LED, OLED, or QLED has lines or is cracked: Access the TV menu and check if the lines run through it. If they do or if the screen is cracked, the panel may need to be replaced. TV turns on from the remote but not the cable or satellite box: Power off the cable or satellite box, unplug it for 15 seconds, then plug it back in and turn it on. Cable or satellite receiver is frozen: Power off the receiver, unplug it for 15 seconds, then plug it back in and turn it on. Ensure that the heat vents on the receiver are not covered to prevent overheating. I hope these rephrased troubleshooting tips are helpful for you!

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Led tv service center

Led tv service center CALL 7770074243 Led tv service center,Ledihatv Service Center for LED TVs A service-based business in Mumbai has taken the initiative to offer Home Appliance Repairing. It’s a customer-focused initiative to offer high-quality services that are renowned for their excellence and superior support. We prioritise gratified clients and effective outcomes.a premier repair, assistance, installation, and service facility! With the help of our technical staff, which is highly skilled and experienced, we offer the best repair services. All problems relating to laptop repair, TV repair, mobile phone repair, LED TV repair, air conditioner (AC) repair, and refrigerator repair can be resolved at one location. Your LCD or LED is not showing any pictures. You might encounter this if your TV occasionally turns on but shows no images or a blank screen. Images on your TV may not be showing for the following reasons: The wires are loose or damaged. You can check to see if the yellow cable, which is used to show images, is slack. If repairing it still doesn’t resolve the issue, the cable may be harmed. incorrect TV settings. Your TV’s incorrect TV settings could be one of the causes of no image display. If the settings have been altered without being noticed, this occurs quite frequently. You can use your TV remote to select the menu button, navigate to the image area, and determine if                        The display is dimmed, distorted, or discolored. The methods listed below can be used to fix an LCD or LED display that appears to be too dark: If the picture setting is set to cinema or custom, the screen might get dark. It’s possible that you’ll need to modify the brightness, picture, and backlight settings.Led tv service center The power saving option, which makes the screen dark, can be changed. If you have a more expensive TV, it might have a light sensor that adjusts the brightness of the screen based on the illumination in the room. By disabling the automatic brightness adjustment, you can boost the brightness of the image. If you want to determine whether the TV’s divided transmission is the root of the problem,data from various devices, such as a DVD player or VCR. Resetting the television after unplugging the air conditioner’s power cable for 30 seconds is a technique that is similar to a traditional Indian fix; you never know, it might just work.Led tv service center The pixelation on your TV is embarrassing. Image pixelation in LCD/LED displays is a frequent problem. It might happen if the incoming signal to your TV has gotten weakened or messed up. Installing an external or rooftop antenna to boost your signal power is one way to fix this.A scratched disc may be to blame for pixelation that occurs after viewing DVDs. The DVD can be cleaned with a dry towel, but avoid wiping it too closely against the disc’s circumference.Led tv service center Weak signals may result from a home’s numerous TVs and splitters. To lessen signal confusion, take out the coaxial cable splitter, or arrange for a cable company representative to come to your home and find out how to strengthen your cable signal. Although it can be rectified, picture pixelation can be quite annoying. The audio on your TV cannot keep up with the video. Led tv service center TV audio latency is a frustrating problem that is frequently experienced. Reasons why your TV’s audio cannot keep up with its visual include: When viewing TV, if the audio is delayed, there may be a problem with the broadcast or the cable/satellite set-top box connection. When using a DVD, a bad connection between the TV and DVD machine or the disc itself may be the cause of any audio delays. When using a home theatre system with an optical cable connected to your TV, audio delays may need to be manually adjusted on the home theatre system.Led tv service center

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Lithium-ion

Lithium-ion “Lithium-ion” redirects here. For the metal element, see Lithium. Lithium-ion battery A 3.6v Li-ion battery from a Nokia 3310 mobile phone Specific energy 100–265 Wh/kg (0.360–0.954 MJ/kg) Energy density 250–693 Wh/L (0.90–2.49 MJ/L) Specific power c. 250–340 W/kg Charge/discharge efficiency 80–90% Energy/consumer-price 7.6 Wh/US$ (US$132/kWh) Self-discharge rate 0.35% to 2.5% per month depending on state of charge Cycle durability 400–1,200 cycles Nominal cell voltage 3.6 / 3.7 / 3.8 / 3.85 V, LiFePO4 3.2 V, Li4Ti5O12 2.3  A lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. The anode (negative electrode) of a conventional lithium-ion cell is typically graphite made from carbon. The cathode (positive electrode) is typically a metal oxide. The electrolyte is typically a lithium salt in an organic solvent. Lithium-ion It is the predominant battery type used in portable consumer electronics and electric vehicles. It also sees significant use for grid-scale energy storage and military and aerospace applications. Compared to other rechargeable battery technologies, Li-ion batteries have high energy densities, low self-discharge, and no memory effect (although a small memory effect reported in LFP cells has been traced to poorly made cells). Lithium-ion Chemistry, performance, cost and safety characteristics vary across types of lithium-ion batteries. Most commercial Li-ion cells use intercalation compounds as active materials. The anode or negative electrode is usually graphite, although silicon-carbon is also being increasingly used. Cells can be manufactured to prioritize either energy or power density. Handheld electronics mostly use lithium polymer batteries (with a polymer gel as electrolyte), a lithium cobalt oxide (LiCoO 2) cathode material, and a graphite anode, which together offer a high energy density. Lithium iron phosphate (LiFePO 4), lithium manganese oxide (LiMn 2O 4 spinel, or Li 2MnO 3-based lithium rich layered materials, LMR-NMC), and lithium nickel manganese cobalt oxide (LiNiMnCoO 2 or NMC) may offer longer lives and may have better rate capability. NMC and its derivatives are widely used in the electrification of transport, one of the main technologies (combined with renewable energy) for reducing greenhouse gas emissions from vehicles. Lithium-ion M. Stanley Whittingham discovered the concept of intercalation electrodes in the 1970s and created the first rechargeable lithium-ion battery, which was based on a titanium disulfide cathode and a lithium-aluminum anode, although it suffered from safety issues and was never commercialized.John Goodenough expanded on this work in 1980 by using lithium cobalt oxide as a cathode.The first prototype of the modern Li-ion battery, which uses a carbonaceous anode rather than lithium metal, was developed by Akira Yoshino in 1985, which was commercialized by a Sony and Asahi Kasei team led by Yoshio Nishi in 1991. Lithium-ion Lithium-ion batteries can be a safety hazard if not properly engineered and manufactured since cells have flammable electrolytes and if damaged or incorrectly charged, can lead to explosions and fires. Much development has made progress in manufacturing safe lithium-ion batteries. Lithium ion all solid state batteries are being developed to eliminate the flammable electrolyte. Improperly recycled batteries can create toxic waste, especially from toxic metals and are at risk of fire. Moreover, both lithium and other key strategic minerals used in batteries have significant issues at extraction, with lithium being water intensive in often arid regions and other minerals often being conflict minerals such as cobalt. Both environmental issues have encouraged some researchers to improve mineral efficiency and alternatives such as iron-air batteries. Research areas for lithium-ion batteries include extending lifetime, increasing energy density, improving safety, reducing cost, and increasing charging speed, among others. Research has been under way in the area of non-flammable electrolytes as a pathway to increased safety based on the flammability and volatility of the organic solvents used in the typical electrolyte. Strategies include aqueous lithium-ion batteries, ceramic solid electrolytes, polymer electrolytes, ionic liquids, and heavily fluorinated systems. Lithium-ion History Main article: History of the lithium-ion battery Research on rechargeable Li-ion batteries dates to the 1960s; one of the earliest examples is a CuF 2/Li battery developed by NASA in 1965. The breakthrough that produced the earliest form of the modern Li-ion battery was made by British chemist M. Stanley Whittingham in 1974, who first used titanium disulfide (TiS 2) as a cathode material, which has a layered structure that can take in lithium ions without significant changes to its crystal structure. Exxon tried to commercialize this battery in the late 1970s, but found the synthesis expensive and complex, as TiS 2 is sensitive to moisture and releases toxic H 2S gas on contact with water. More prohibitively, the batteries were also prone to spontaneously catch fire due to the presence of metallic lithium in the cells. For this, and other reasons, Exxon discontinued the development of Whittingham’s lithium-titanium disulfide battery Lithium-ion In 1980 working in separate groups Ned A. Godshall et al.,and, shortly thereafter, Koichi Mizushima and John B. Goodenough, after testing a range of alternative materials, replaced TiS 2 with lithium cobalt oxide (LiCoO 2, or LCO), which has a similar layered structure but offers a higher voltage and is much more stable in air. This material would later be used in the first commercial Li-ion battery, although it did not, on its own, resolve the persistent issue of flammability. The same year, Rachid Yazami demonstrated the reversible electrochemical intercalation of lithium in graphite, and invented the lithium graphite electrode (anode) These early attempts to develop rechargeable Li-ion batteries used lithium metal anodes, which were ultimately abandoned due to safety concerns, as lithium metal is unstable and prone to dendrite formation, which can cause short-circuiting. The eventual solution was to use an intercalation anode, similar to that used for the cathode, which prevents the formation of lithium metal during battery charging. A variety of anode materials were studied; in 1987, Akira Yoshino patented what would become the first commercial lithium-ion battery using an anode of “soft carbon” (a charcoal-like material) along with Goodenough’s previously reported LCO cathode and a carbonate ester-based electrolyte. In 1991, using Yoshino’s design, Sony began producing and selling the world’s first rechargeable lithium-ion batteries. The following year, a joint venture between Toshiba and Asashi Kasei Co. also released their lithium-ion battery. Lithium-ion Significant improvements in energy density were achieved in the 1990s by replacing the soft carbon anode first with hard carbon and later with graphite, a concept originally proposed by Jürgen Otto Besenhard in 1974 but considered unfeasible due to unresolved incompatibilities with the electrolytes then in use. In 2012 John B. Goodenough, Rachid Yazami and Akira Yoshino received the 2012 IEEE Medal for Environmental and Safety Technologies for developing the lithium-ion battery; Goodenough, Whittingham, and Yoshino were awarded the 2019 Nobel Prize in Chemistry “for the development of lithium-ion batteries”. In 2010, global lithium-ion battery production capacity was 20 gigawatt-hours. By 2016, it was 28 GWh, with 16.4 GWh in China. Global production capacity was 767 GWh in 2020, with China accounting

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LED display

LED display   LED display This article is about light-emitting diode (LED) based displays. For LED-backlit displays, see LED-backlit LCD. For matrixed text displays, see Dot-matrix display. Not to be confused with Vacuum fluorescent display. For segment displays, see Seven-segment display, Nine-segmet display, Fourteen-segment display, and Sixteen-segment display. Detail view of an LED display with a matrix of red, green and blue diodes The 1,500-foot (460 m) long LED display on the Fremont Street Experience in Downtown Las Vegas, Nevada is currently the largest in the world. A LED display is a flat panel display that uses an array of light-emitting diodes as pixels for a video display. Their brightness allows them to be used outdoors where they are visible in the sun for store signs and billboards. In recent years, they have also become commonly used in destination signs on public transport vehicles, as well as variable-message signs on highways. LED displays are capable of providing general illumination in addition to visual display, as when used for stage lighting or other decorative (as opposed to informational) purposes. LED displays can offer higher contrast ratios than a projector and are thus an alternative to traditional projection screens, and they can be used for large, uninterrupted (without a visible grid arising from the bezels of individual displays) video walls. microLED displays are LED displays with smaller LEDs, which poses significant development challenges. History Light-emitting diodes (LEDs) came into existence in 1962 and were primarily red in color for the first decade. The first practical LED was invented by Nick Holonyak in 1962 while he was at General Electric. The first practical LED display was developed at Hewlett-Packard (HP) and introduced in 1968. Its development was led by Howard C. Borden and Gerald P. Pighini at HP Associates and HP Labs, who had engaged in research and development (R&D) on practical LEDs between 1962 and 1968. In February 1969, they introduced the HP Model 5082-7000 Numeric Indicator. It was the first LED device to use integrated circuit (integrated LED circuit) technology, and the first intelligent LED display, making it a revolution in digital display technology, replacing the Nixie tube and becoming the basis for later LED displays. Early models were monochromatic by design. The efficient Blue LED completing the color triad did not commercially arrive until the late 1980s. LED display In the late 1980s, Aluminium Indium Gallium Phosphide LEDs arrived. They provided an efficient source of red and amber and were used in information displays. However, it was still impossible to achieve full colour. The available “green” was hardly green at all – mostly yellow, and an early blue had excessively high power consumption. It was only when Shuji Nakumura, then at Nichia Chemical, announced the development of the blue (and later green) LED based on Indium Gallium Nitride, that possibilities opened for big LED video displays. The entire idea of what could be done with LED was given an early shake up by Mark Fisher’s design for U2’s PopMart Tour of 1997. He realized that with long viewing distances, wide pixel spacing could be used to achieve very large images, especially if viewed at night. The system had to be suitable for touring so an open mesh arrangement that could be rolled up for transport was used. LED display The whole display was 52m (170ft) wide and 17m (56ft) high. It had a total of 150,000 pixels. The company that supplied the LED pixels and their driving system, SACO Technologies of Montreal, had never engineered a video system before, previously building mimic panels for power station control rooms. Today, large displays use high-brightness diodes to generate a wide spectrum of colors. It took three decades and organic light-emitting diodes for Sony to introduce an OLED TV, the Sony XEL-1 OLED screen which was marketed in 2009. Later, at CES 2012, Sony presented Crystal LED, a TV with a true LED-display, in which LEDs are used to produce actual images rather than acting as backlighting for other types of display, as in LED-backlit LCDs which are commonly marketed as LED TVs.

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LED TV

LED TV Ledihatv.com LCD TV set that uses LEDs (light emitting diodes) for its backlight source rather than the earlier cold cathode fluorescent lamps (see CCFL). Smaller, more power efficient and having a greater optical range than the fluorescents, LED TVs produce deeper blacks and more saturated color. In 2005, Sony offered the first Although an LED TV is really an LCD TV with LED backlighting, the industry branded them as LED TVs to avoid monikers such as “LED backlit TV” or “LD-based LCD TV.” Today, most TV sets are s. White or RGB White LDs are less costly, while red, green and blue (RGB) LDs provide a richer color gamut.LED TV Backlights: Direct Lit, Edge Lit and Full Array There are three “local dimming” backlight techniques for LD TVs, all of which dynamically dim the light behind the black areas of the image to make them darker.LEV The more economical direct-lit method uses LDs in a sparse array across the back. Because the LDs are farther away from the screen to allow each light to spread to more pixels, direct-lit TVs are as thick as the older CCFL fluorescent lamp LCD TVs.V Edge-lit LED TVs beam light to the back of the screen from the sides and allow for ultra-thin cases. Although some designs provide selective dimming, they are not as effective as the full array. In addition, they have a tendency to be brighter at the edges than at the centerV The full array covers the entire back of the screen with s. Although the case is thicker than edge-lit designs, the full array provides better details in shadows and more contrast than the other methods. See ULED, ED, OlED, LCD, flat panel TV and Dolby HDR. In the late 1980s, A lu mini um Indium Gallium Phosphide LDs arrived. They provided an efficient source of red and amber and were used in information displays. However, it was still impossible to achieve full colour. The available “green” was hardly green at all – mostly yellow, and an early blue had excessively high power consumption. It was only when Shuji Nakumura, then at Nichia Chemical, announced the development of the blue (and later green) LED based on Indium Gallium Nitride, that possibilities opened for big LD video displays. The entire idea of what could be done with LED was given an early shake up by Mark Fisher’s design for U2’s Copart Tour of 1997. He realized that with long viewing distances, wide pixel spacing could be used to achieve very large images, especially if viewed at night. The system had to be suitable for touring so an open mesh arrangement that could be rolled up for transport was used. The whole display was 52m (170ft) wide and 17m (56ft) high. It had a total of 150,000 pixels. The company that supplied the  pixels and their driving system, SACO Technologies of Montreal, had never engineered a video system before, previously building mimic panels for power station control rooms. Today, large displays use high-brightness diodes to generate a wide spectrum of colors. It took three decades and organic light-emitting diodes for Sony to introduce an OLED TV, the Sony XEL-1 OLED screen which was marketed in 2009. Later, at CES 2012, Sony presented Crystal LEa TV with a true LE-display, in which LEDs are used to produce actual images rather than acting as backlighting for other types of display, as in LE-backlit LCDs which are commonly marketed as LE TVs. led tv manufacturing company boe panda sharp and htc LED TV: Buy LED Televisions Online at Lowest Prices In India LED TVs – Best Deals on Led TVs at India’s Best Online Shopping Store. Choose from a wide range of led televisions from top brands. ✓ Free Shipping ✓ COD.

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Light Emitting Diodes

Light Emitting Diodes-Lediha tv Light Emitting Diodes (LED) is a semiconductor device that emits light when an electric current passes through it. It is a type of solid-state lighting technology that has gained immense popularity and is widely used in various applications due to its energy efficiency, longevity, and versatility. LEDs work based on the principle of electroluminescence, where light is produced when electrons recombine with electron holes in a semiconductor material. The semiconductor material used in LEDs is typically a combination of different elements such as gallium, arsenic, phosphorus, and nitrogen, which determine the color of the emitted light. Light Emitting Diodes (LEDs) are the most widely used semiconductor diodes among all the different types of semiconductor diodes available today. Light emitting diodes emit either visible light or invisible infrared light when forward biased. The LEDs which emit invisible infrared light are used for remote controls. A light Emitting Diode (LED) is an optical semiconductor device that emits light when voltageis applied. In other words, LED is an optical semiconductor device that converts electrical energy into light energy. When Light Emitting Diode (LED) is forward biased, free electrons in the conduction band recombines with the holes in the valence band and releases energy in the form of light. Lediha electronics The process of emitting light in response to the strong electric field or flow of electric current is called electroluminescence.Before going into how LED works, let’s first take a brief look at light self. Since ancient times man has obtained light from various sources like sunrays, candles and lamps. In 1879, Thomas Edison invented the incandescent light bulb. In the light bulb, an electric current is passed through a filament inside the bulb. When sufficient current is passed through the filament, it gets heated up and emits light. The light emitted by the filament is the result of electrical energy converted into heat energy which in turn changes into light energy.In Light Emitting Diodes (LEDs), electrical energy flowing through it is directly converted into light energy. Light Emitting Diodes Light is a type of energy that can be released by an atom. Light is made up of many small particles called photons. Photons have energy and momentum but no mass. Atoms are the basic building blocks of matter. Every object in the universe is made up of atoms. Atoms are made up of small particles such as electrons, protons and neutrons. Lediha electronics Electrons are negatively charged, protons are positively charged, and neutrons have no charge. The attractive force between the protons and neutrons makes them stick together to form nucleus. Neutrons have no charge. Hence, the overall charge of the nucleus is positive. The negatively charged electrons always revolve around the positively charged nucleus because of the electrostatic force of attraction between them. Electrons revolve around the nucleus in different orbits or shells. Each orbit has different energy level. Light Emitting Diodes For example, the electrons orbiting very close to the nucleus have low energy whereas the electrons Lediha Lediha electronics .

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