Energy saving, recycling smartphones, TVs of the future
Monday 15 August 2011
Energy produced by the backlight of LCD devices such as smartphones or TVs could soon be recycled and re-used by the device itself due to a technological breakthrough by UCLA engineers.
Currently LCD backlight devices such as smart phones, TV screens and computer monitors work in the following manner; miniscule liquid crystals sandwiched between two polarizing sheets, which covert wide areas of light into small well defined beams. These crystals are then manipulated to allow a certain amount of light through - making parts of the screen appear lighter or darker as required.
Studies estimate that this current method of backlighting can consume between 80-90 percent of a device's power.
However in a statement released August 9 engineers from the University of California Los Angeles (UCLA) claimed to have created a more efficient process of backlighting that could recycle the power lost by the device.
The UCLA engineers claim to have invented an energy harvesting polarizer for LCDs called a ‘polarizing organic photovoltaic', which works both as a polarizer and as a photovoltaic panel.
This means that any device using the polarizer, such as a smart phone, could extend its battery power by recycling 75 percent of the energy used for backlighting and that the battery could be replenished, without the need for a external charger, by merely exposing the device to sunlight.
Professor of materials science at UCLA Engineering Yang Yang stated that " [...]eventually we hope to work with electronic manufacturers [and] we hope this energy-saving LCD will become a mainstream technology in displays".
Currently energy efficient LCD devices such as TVs and computer monitors in the USA, EU, Japan, Australia and New Zealand are awarded Energy Star certification. More information about the certification and a list of devices to which it has been awarded can be found via the links below.
Energy Star USA- http://www.energystar.gov
Energy Star EU- http://www.eu-energystar.org/
Energy Star AU- http://www.energystar.gov.au/
Energy Star NZ- http://www.eeca.govt.nz/standards-and-ratings/energy-star
Energy Star JP- http://www.energystar.jp/index_esu.html
The full findings by the UCLA engineers will be published in a forthcoming issue of the journal Advanced Materials - http://www.wiley-vch.de/publish/en/journals/alphabeticIndex/2089/.
Culinary experts in The Netherlands thought it was 'fresh' and 'tasty'
Of all the computers Apple has ever made there’s only one that Steve Jobs had to sell his car to finance
Life & Style blogs
Nokia no more: Microsoft drops once-ubiquitous mobile name – in favour of its Lumia brand
A cup of tea is every worker's right
Fake goats’ cheese found in supermarkets
Handy hacks that make life easier: New book reveals how to rid your inbox of spam, protect your passwords and amplify your iPhone
St Bees in Cumbria is named the best place to raise a family in the UK
Cameron is warned 'no possibility' of UK reducing immigration and that bid to bring in quota on migrant workers would be illegal
Of course, teenage girls need role models – but not like beauty vlogger Zoella
Support for EU membership 'at highest level since 1991' with most Brits wanting to stay 'in'
Residents should throw a street party and mix with immigrant neighbours, councils told
Russell Brand threatened with arrest after filming outside Fox News headquarters
London bus driver 'kicks gay couple off for kissing'
- 1 As an ex prostitute, I urge all the political parties to commit to the Sex Buyer Law
- 2 Nokia no more: Microsoft drops once-ubiquitous mobile name – in favour of its Lumia brand
- 3 Renee Zellweger on plastic surgery: 'I'm living a fulfilling life and I'm thrilled that perhaps it shows'
- 4 Australian café owner sparks debate after saying 'No' to having unruly children on premises
- 5 Couple die within 28 hours of each other after being married for 73 years
iJobs Gadgets & Tech
£65000 - £80000 per annum: Ashdown Group: Business Intelligence Consultant - C...
£250 - £300 Per Day: Clearwater People Solutions Ltd: **URGENT CONTRACT** Our...
£30000 - £40000 per annum + benefits and bonus: Ashdown Group: SQL Developer -...
£30000 - £40000 per annum + benefits and bonus: Ashdown Group: SQL Developer ...