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Companies like LG and Samsung have been increasingly depending on the OLED display technologies for
their smartphones, digital cameras, and even televisions. The OLED screens have incredible
black levels and are super-thin, but the battery life of these screens is very poor. Additionally, the cost of this technology is also high. The researchers from the University of Bonn have developed a new technology that could make cheaper and more efficient OLED displays.
OLEDs are called so because they are made up of organic molecules and these molecules consist solely of carbon and hydrogen. In a conventional OLED display, there is a lot of energy loss as the display generates more heat instead of light. According to the University of Bonn press release, "this loss of energy occurs frequently: three quarters of all charges carry the same spin. Much like the needle of a compass, they point in the same direction but cannot touch each other, effectively lowering the yield of useful light." While noble metals can be used to quickly re-orient the magnetic particles so that they do generate light instead of heat after all, but such rare metals are obviously an expensive addition to the overall manufacturing costs.
Dr. John Lupton, Professor of Physics at the University of Regensburg, said that the new OLED display technology raises the efficiency using an entirely different mechanism. According to him, "Charges can flip the orientation of their spins spontaneously, you just have to wait for long enough for this to occur." But traditional OLED molecules give up their energy as heat quicker than the new ones which are developed at the University of Bonn. Professor Sigurd Höger of the University of Bonn said that, "“It appears that, in our OLEDs, the molecules can store electrical energy for significantly longer than is conventionally assumed, our molecules can therefore exploit the spontaneous jumps in spin orientation in order to generate light."
This technology could make a big difference to the consumers. The screen on your smartphone often costs as much as the rest of the parts combined. That is a heck lot of money for just a screen, maybe that won't be the case once this technology is implemented.
OLEDs are called so because they are made up of organic molecules and these molecules consist solely of carbon and hydrogen. In a conventional OLED display, there is a lot of energy loss as the display generates more heat instead of light. According to the University of Bonn press release, "this loss of energy occurs frequently: three quarters of all charges carry the same spin. Much like the needle of a compass, they point in the same direction but cannot touch each other, effectively lowering the yield of useful light." While noble metals can be used to quickly re-orient the magnetic particles so that they do generate light instead of heat after all, but such rare metals are obviously an expensive addition to the overall manufacturing costs.
Dr. John Lupton, Professor of Physics at the University of Regensburg, said that the new OLED display technology raises the efficiency using an entirely different mechanism. According to him, "Charges can flip the orientation of their spins spontaneously, you just have to wait for long enough for this to occur." But traditional OLED molecules give up their energy as heat quicker than the new ones which are developed at the University of Bonn. Professor Sigurd Höger of the University of Bonn said that, "“It appears that, in our OLEDs, the molecules can store electrical energy for significantly longer than is conventionally assumed, our molecules can therefore exploit the spontaneous jumps in spin orientation in order to generate light."
This technology could make a big difference to the consumers. The screen on your smartphone often costs as much as the rest of the parts combined. That is a heck lot of money for just a screen, maybe that won't be the case once this technology is implemented.
Android is the operating system(OS) that powers over 1 billion smartphones and tablets all over the world. Google officially announced the Android 4.4 KitKat a couple of days back and now we have got a walkthrough video for our viewers. This video explains almost everything you need to know about the latest version of Android. The video was uploaded by Techradar.
Android 4.4 launched alongside the Nexus 5, which is the latest smartphone in the Nexus line-up and the second to be manufactured by LG. Android OS has been developed by Google under sweet-themed names like "Gingerbread", "Honeycomb" and "Ice-Cream Sandwhich" ever since the release of Android Cupcake (Android 1.5), which was released in the year 2009 and it has been continuing in alphabetical order until the most recent version, Android Jelly Bean. But this is the first time that the company has used a brand name to name a version of its operating system.
According to Sundar Pichai (Android Senior VP), "The new mobile OS is based on efficiency that brings smartphones to the next billion people." Android 4.4 has got many new features and improved performance as compared to the previous versions. Much of the interface has been streamlined. It now has a shortcut for camera and more immersive 'now playing' content on the lock screen, and there is also an option to rearrange the home screens. The dialer and Hangouts make it easy for the users to search for the nearby addresses. Emoji icons are also available in the keyboard which will impress the self-expression fans.
Google is also improving battery life through sensor batching, which cuts back on data requests. Google claims that the Android KitKat allows for better multi-tasking. According to Google, the system optimizes memory and improves the user's touchscreen so that it responds faster. It also contains a new phone app which is meant to automatically prioritize the user's contacts based on the people he/she talks to the most. KitKat also allows the users to print photos, webpages and documents from their phone or tablet.
KitKat also has improved the Voice Technology. You don’t even need to touch the phone's screen to get things done. When you are on the home screen or in Google Now, you just have to say “Ok Google” to launch voice search, send a text, get directions or even play a song. According to Google, the speech recognition engine is about 25% more accurate.
How to get Android KitKat ? As of now, buying a LG Nexus 5 is the quickest way to get this latest version of Android. Upgrades for other devices will roll out in the coming weeks, according to Google.
We will inform you about the latest KitKat updates as soon as possible.
Telecom major Bharti Airtel today said its subsidiary has launched third generation (3G) services in the country of Bangladesh. The company said that Airtel Bangladesh's 3G services will be available initially in Dhaka and Chittagong and will be extended to the whole country.
According to a release by Bharti Airtel, the telecom operator also introduced various packages for its customers.
In September, Airtel, India's largest private telecom operator, announced that its Bangladesh arm had won 5 Mhz of 3G spectrum for USD 105 million in an auction.
"We are excited to offer innovative products and affordable prices of our 3G services with highest speed, innovative contents for all segments, which will mark a major milestone for Airtel in Bangladesh," Airtel Bangladesh CEO and Managing Director Chris Tobit said.
Customers can enjoy high speed mobile Internet, HD video streaming, file sharing,downloads and much more over Airtel 3G with innovative, simple and much affordable data packs. All Airtel packages are of minimum 1 MBps speed, he added.
Airtel said all the customers can enjoy the 'pay as you go' data usage service at 2G rate. As a promotional offer, Airtel customers will also receive 100% bonus on each subscription of minimum 1 GB data pack, it added.