Hands-on with LG’s roll-up flexible screen: Video


Special to the BBC at the CES – Dave Lee

If you’re in the business of making TV cabinets – look away now.

For the rest of you, feast your eyes on a remarkable innovation-in-progress. (Watch the Video below)

LG Display has been working on its fully flexible screen for some time now, but it’s at this year’s CES the BBC was given the exclusive first hands-on.

The screen can be rolled up and scrunched around, and the display is full HD.

The one I played with was 18in (45.7cm) corner to corner, but the team at LG say they’re aiming for screens that are 55in and beyond.

At that size they will be able to produce a screen quality of 4K, they say – that’s four times HD.

Right now, the resolution is 1,200 by 810 pixels.

How did they do it? Of course they wouldn’t share the precise details, but the crucial technological leap has been moving from LED TVs to OLED TVs.

The O stands for organic, and it removes the necessity of a back panel providing light to the screen. Therefore, it bends.

Why would you want a bendable TV? LG says it’s ideal for making displays, like in a shop, but also for people who no longer want to sacrifice an entire corner of a room to a television.

With a bendable screen like this, you can roll it up and pop it in a cupboard until you need it again.

Dead pixels

Unfortunately – and you knew this bit was coming – LG isn’t able to say how much it would eventually cost, or indeed, when it will actually be sold at all. At the moment, the team is buried in the prototype stage.

LG
Image caption The screen can be bent but not folded flat

“The larger prototype is expected in the near future. But as for a commercial product, we’re still planning the timing,” says KJ Kim, LG Display’s vice president of its marketing division.

That can be translated as it’ll be a while yet.

Because while the screen is remarkable, it suffers a few flaws.

The night-time demo we saw, with quick flashing lights, was designed to conceal the numerous “dead” pixels in the display.

Dead pixels are those that have been damaged, so instead of emitting the correct colour just get appear as a tiny empty square.

There were several dead pixels on the screen and, after I played around with it a bit more, several more emerged.

Right now, the screen can only be rolled up in one direction, which isn’t a limitation, really, but something they will need to suss out before it comes to market.

Also, it’s crucial to point out that the screen can be rolled, but not folded flat.

Folding it flat would permanently damage it, and therefore the screen doesn’t represent a chance for something many have lusted over for a while, an interactive video newspaper that feels just like the paper product.

But we’re getting there.

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Quantum Dots are ‘Ready for Prime Time’ says Analysts, Yole Development


Yole Développement says revenues “will exceed phosphors by 2020” as adoption into LCD TVs rivals OLED quality.

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Quantum dots’ virtual adoption cycle, according to Yole Développement

Yole Développement (Yole), the Lyon, France-based market research and strategic

consulting company, has published its new LED down converters technology and market

report, entitled Phosphors & Quantum Dots 2015: LED Down Converters for Lighting & Displays.

It presents a detailed review of the industry, especially the impact of the development of

quantum dots on the display and conventional phosphors industry. Yole asks, are quantum dots

now a serious competitor to OLED-based technologies – and its conclusion is: quantum dots

are finally ready for prime time and will exceed traditional phosphor revenue by 2020 by

allowing LCD to compete with OLED in the race for the next generation of displays.”

After the lukewarm reception of 3D and 4K screens, Yole comments that the display

industry needs a “new and disruptive experience improvement” to bring consumers back

to the stores: “image quality perception increases significantly when color gamut and

dynamic contrast ratio are improved.” Yole also notes that “Leading movie studios,

content providers, distributors and display makers have together formed the UHD Alliance

to promote those features.”

Dr Eric Virey, Senior Analyst, LEDs at Yole, commented, “OLED was believed to be

the technology of choice for this next generation of displays. But production challenges

have delayed the availability of affordable OLED TVs. LCD TVs with LED backlights

based on quantum dot down-converters can deliver performance close to, or even

better than OLED in some respects, and at a lower cost.”

 

QD-LCD ‘could pull ahead’ of OLED display

Until OLEDs are ready, says Yole, “QD-LCD technology will have a unique window of

opportunity to try to close enough of the performance gap such that the majority of

consumers will not be able to perceive the difference between the two technologies

so price would become the driving factor in the purchasing decision.” Under this scenario,

the analyst believes that QD-LCD could establish itself as the dominant technology while

struggling OLEDs “would be cornered into the high end of the market.”

Yole acknowledges that OLED-based displays potentially offer more opportunities for

differentiation but the analyst notes, “OLED proponents need to invest massively and

still have to resolve manufacturing yield issues. For tier-2 LCD panel makers who

cannot invest in OLED, Quantum Dots offer an opportunity to boost LCD performance

without imposing additional CAPEX on their fabs.” At this year’s Consumer Electronics

show, as optics.org reported, no fewer than seven leading TV OEMs including

Samsung and LG demonstrated QD-LCD TVs.

 

With tunable and narrowband emissions, QDs offer design flexibility to developers

of new displays. But more is needed to enable massive adoption, including the d

evelopment of cadmium-free formulations. Cole cautions that “traditional phosphors

still have to say their last word”. If PFS could further improve in term of stability and decay

time and a narrow-band green composition was to emerge, traditional phosphors could

also be part of the battle against OLED, Yole concludes.

Yole’s analysis Phosphors & Quantum Dots 2015: LED Down-converters for Lighting & Displays

presents an overview of the quantum dot LED market for display and lighting applications

including quantum dot manufacturing, benefits and drawbacks, quantum dots LCD versus

OLED and detailed market forecast. For more information about this report and other

LED technology & market analysis from Yole, visit i-micronews in its LED Reports section.

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3M Showcases High-Performance Solutions for Consumer Electronics Industry at CES: QDEF (Quanum Dot Enhancement Film)


ces-765LAS VEGAS–(BUSINESS WIRE)–3M Electronics is exhibiting some of the company’s industry-leading solutions for the consumer electronics industry during the 2014 International CES, taking place Jan. 7-10 in Las Vegas. CES attendees are also invited to get a free 3M Privacy Screen Protector applied to their iPhone® 4S or iPhone® 5 Tuesday through Thursday, from 11 a.m. to noon (PST) while learning more about the 3M technologies below at booth number 30459.

Screen privacy and protection products

The latest in screen privacy for mobile and desktop devices from 3M will be showcased and in particular, a key solution to the emerging data security risk of corporate information access on mobile devices. A proprietary micro-louver technology from 3M lets the user see a clear image, while showing a dark, blank screen to anyone viewing the display from a side angle. 3M screen privacy and protection solutions are available for tablets, smartphones, laptops, and monitors, as well as for managing light in industrial and automotive applications. Other booth displays include a larger-than-life 3M™ Privacy Screen Protector, and the full line of 3M™ Privacy and Screen Protector products, plus the newly-introduced 3M™ Easy-On Privacy Filters for iPads®, with an interactive attachment wall. Learn more at www.3mscreens.com.

Dot enhancement film

Devices such as smartphones, tablets and televisions can be made lighter, brighter and more energy efficient with 3M™ Quantum Dot Enhancement Film (QDEF). The new product from 3M allows up to 50 percent more color than current levels in liquid crystal display (LCD) devices. 3M has teamed with Nanosys, Inc. to produce the 3M QDEF solution.

Presently, LCDs typically are limited to displaying 35 percent or less of the visible color spectrum, resulting in a viewing experience that can be vastly different than what a person sees in the real world. The wider color gamut displays available through the new 3M film let consumers enjoy more visceral, more immersive, and truer-to-life color. Learn more at 3M.com/color. Nanoco nano_0

Touch screen films

3M recently announced new films to help touch screen manufacturers and integrators meet the growing demand for touch-enabled consumer electronics.

  • 3M™ Patterned Metal Mesh Film enables new design possibilities, such as curved and foldable touch screens, allowing OEMs and ODMs to create the next generation of touch-enabled smartphones, notebooks and tablets.
  • 3M™ Patterned Silver Nanowire Film combines the expertise of two leading technology and manufacturing companies – 3M and Cambrios Technologies Corporation – to provide the quality and volume that touch screen manufacturers demand. The flexible film can conform to angles and rounded surfaces, enabling next-generation curved and rollable touch sensors.
  • 3M™ ITO Film and 3M™ Advanced ITO Film offer excellent optical transparency, high conductivity and product quality at competitive prices.

3M plans to ramp up its global touch sensor film manufacturing capacity to more than 600,000 square meters per month, in aggregate, to support the growing demand for consumer touch-enabled devices, such as smartphones, tablets, laptops, all-in-ones (AIO) and monitors. Learn more at 3MTouch.com/films.

Touch displays and systems

3M showcases its latest multi-touch solutions for interactive digital signage applications, including a new 42-inch multi-touch display, large-format multi-touch systems and downloadable multi-display/multi-touch software. Learn more at 3M.com/multitouch.

Design-enabling materials for a new generation of electronic displays

3M will also showcase a variety of industry-specific materials that help maximize the functionality, reliability and productivity of electronic displays, enabling brighter, lighter, thinner, state-of-the-art devices. 3M Optically Clear Adhesives (OCAs), Liquid Optically Clear Adhesives (LOCAs), Electronic Assembly Tapes, and Contrast Enhancement Films will be featured as part of the 3M Electronics display. Based on core 3M adhesive technology, 3M Optically Clear Adhesives are precision-manufactured to virtually eliminate common adhesive visual defects such as bubbling, which can distort the display and diminish consumer satisfaction with their device.

3M OCA’s meet certain specific display bonding requirements with the unique ability to customize the functionality, reactivity and performance of the adhesive. 3M’s collaborative culture and bench-to-bench approach, combined with electronics materials expertise, breadth of product portfolio and alignment with key consumer electronics industry leaders provides many innovative answers to demanding industry needs.

About 3M Electronics

3M Electronics provides a wide array of innovative products and systems that enable greater speed, brightness and flexibility in today’s electronic devices, while addressing industry needs for increased thinness, sustainability and longevity. Using the most recent R&D advances in materials and science, 3M offers technology, materials and components to create exceptional visual experiences; enable semiconductor processes and consumer electronics devices, and enhance and manage signals. 3M Electronics enables the digitally enhanced lifestyle of today and tomorrow. Learn more at: http://www.3Melectronics.com.

About 3M

3M captures the spark of new ideas and transforms them into thousands of ingenious products. Our culture of creative collaboration inspires a never-ending stream of powerful technologies that make life better. 3M is the innovation company that never stops inventing. With $30 billion in sales, 3M employs 88,000 people worldwide and has operations in more than 70 countries. For more information, visit www.3M.com or follow @3MNews on Twitter.