Feeds

HP's bendy plastic e-paper display on the way

Ribbony prototype tested

Next gen security for virtualised datacentres

Bendy plastic displays might actually arrive in a year or two - HP has developed a prototype of a flexible display screen with Arizona State University's Flexible Display Center.

Flexible displays could be pulled out from a PDA-like device to provide a viewing area larger than the device itself. They could also be used as a form of paper, signage, or as displays stretched between supports for a meeting and then rolled away and packed up.

Making them is difficult because the flexible material obviously moves, meaning it deforms, and this makes it excessively difficult to add precisely aligned display components to it and ensure they stay aligned and don't become unstuck.

The HP display is crafted like a tape ribbon but in wider rolls. Roll-based manufacture is cheaper than sheet-by-sheet manufacture. A flexible plastic substrate is the starting point. This is flexible Polyethylene Naphthalate (PEN) from DuPont Teijin Films. HP then layers a thin film transistor array on this using a self-aligning imprint technology (SAIL) method. HP says it produces perfect alignment irrespective of any process-induced distortions in the substrate.

Then E Ink’s Vizplex imaging film is integrated to produce an actively addressed display. This is a bi-stable electrophoretic imaging material and it enables images to persist without applied voltage - it uses reflected light for viewing - and so lowers electricity usage.

The flexible display is monochrome and the same E-Ink material is used in Amazon's Kindle reader as a form of e-paper. In that device it has 4 grey-scales and the screen is basically light grey with darker grey text. It suffers from a lack of contrast compared to desktop, notebook and smartphone display screens. E-Ink does have a Vizplex film with 8 grey-scale levels, but not colour.

Amazon.com Kindle

Amazon's Kindle

An HP statement says: "Mass production of such [flexible] displays can enable production of notebook computers, smart phones and other electronic devices at much lower costs since the display is one of the more costly components."

This is not really true as the HP bendy screen is a four- or eight-greyscale monochrome display lacking in contrast compared to the bright colourful screens we are all used too and few people would buy an HP notebook if it had such a crap screen.

The monochrome flexible display technology is amazing but limited. The holy grail here is a flexible, colour display with notebook screen brightness and resolution. That is still a long, long way off. ®

Secure remote control for conventional and virtual desktops

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
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
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!
AMD unveils 'single purpose' graphics card for PC gamers and NO ONE else
Chip maker claims the Radeon R9 285 is 'best in its class'
Tim Cook in Applerexia fears: New MacBook THINNER THAN EVER
'Supply chain sources' give up the goss on new iLappy
prev story

Whitepapers

Gartner critical capabilities for enterprise endpoint backup
Learn why inSync received the highest overall rating from Druva and is the top choice for the mobile workforce.
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.
Rethinking backup and recovery in the modern data center
Combining intelligence, operational analytics, and automation to enable efficient, data-driven IT organizations using the HP ABR approach.
Consolidation: The Foundation for IT Business Transformation
In this whitepaper learn how effective consolidation of IT and business resources can enable multiple, meaningful business benefits.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.