Feeds

Sharp shows image-retaining LCD

Cut the power, still see a picture

Build a business case: developing custom apps

Boffins at Sharp have come up with an LCD that continues to show a picture when the power's pulled.

Demo'ing the technology in Japan this week, Sharp showed off black-and-white and colour versions of the panel, in a range of sizes running from 1.7in to 14.1in.

Unfortunately, the company didn't say how it has brought e-paper like image retention to LCD. Electronic ink displays use charge particles to produce the picture. When the power is cut, the particles retain their alignment within each pixel. Since it's that alignment which determines whether the pixel is black, grey or clear, the image is maintained.

LCDs, by contrast, require a continuous voltage for the liquid crystal to maintain the polarisation, which governs whether a given pixel is 'on' or not.

A Sharp spokesman admitted that the power consumption required to 'save' the image is large, Japanese newspaper Nikkei reports.

He also confirmed the system uses "some materials that are not usually seen in LCDs", though that doesn't prevent the company from punching out panels using its older LCD production lines.

The essential guide to IT transformation

More from The Register

next story
So, Apple won't sell cheap kit? Prepare the iOS garden wall WRECKING BALL
It can throw the low cost race if it looks to the cloud
End of buttons? Apple looks to patent animating iPhone sidewalls
Filing suggests handset with display strips
One step closer to ROBOT BUTLERS: Dyson flashes vid of VACUUM SUCKER bot
Latest cleaner available for world+dog in September
Samsung Gear S: Quick, LAUNCH IT – before Apple straps on iWatch
Full specs for wrist-mounted device here ... but who'll buy it?
Apple promises to lift Curse of the Drained iPhone 5 Battery
Have you tried turning it off and...? Never mind, here's a replacement
Now that's FIRE WIRE: HP recalls 6 MILLION burn-risk laptop cables
Right in the middle of Burning Mains Man week
Apple's iWatch? They cannae do it ... they don't have the POWER
Analyst predicts fanbois will have to wait until next year
Reg man looks through a Glass, darkly: Google's toy ploy or killer tech specs?
Tip: Put the shades on and you'll look less of a spanner
HUGE iPAD? Maybe. HUGE ADVERTS? That's for SURE
Noo! Hand not big enough! Don't look at meee!
prev story

Whitepapers

Top 10 endpoint backup mistakes
Avoid the ten endpoint backup mistakes to ensure that your critical corporate data is protected and end user productivity is improved.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Backing up distributed data
Eliminating the redundant use of bandwidth and storage capacity and application consolidation in the modern data center.
The essential guide to IT transformation
ServiceNow discusses three IT transformations that can help CIOs automate IT services to transform IT and the enterprise
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.