Sharp to mass-produce low-power mobile displays in 2017

MEMS-IGZO screens could halve power use in smartphones

Sharp's MEMS-IGZO display prototype tablet is shown off in Tokyo on Friday. The display technology could help halve power consumption in mobile devices.

Sharp's MEMS-IGZO display prototype tablet is shown off in Tokyo on Friday. The display technology could help halve power consumption in mobile devices.

Sharp has set 2017 as its target for mass production of a new display it says will reduce power consumption in smartphones and tablets.

The MEMS-IGZO display, being developed under a 2012 tie-up with Qualcomm subsidiary Pixtronix, could be used in smartphones and tablets as well as larger displays.

Compared to current LCDs, MEMS-IGZO technology can operate without blurring the image in temperatures down to minus 30 C, offers better color purity and gamut, and has ultra-low power consumption.

Depending on usage, devices could run for twice as long using the new displays instead of LCD, said Pixtronix President Greg Heinzinger.

The "programmable display" can change power usage depending on whether the user is looking at a video or an e-book, for instance, Heinzinger said, adding that most display technologies use the same power regardless of the content. Color gamut, depth and fidelity can also be modified depending on use.

Power efficiency will become a crucial feature of next-generation displays because resolution has basically reached the limits of perception of the human eye, Sharp Devices Group Chief Officer Norikazu Hohshi told the briefing.

The company is licensing MEMS (microelectromechanical systems) technology from Pixtronix. Qualcomm has long been trying to make the technology popular, and commercialized its related Mirasol low-power display in its Toq smartwatch last year.

MEMS displays work in a fundamentally different way than LCDs. Thousands of miniature shutters, as tiny as one per pixel, modulate light emitted from RGB LEDs to produce different colors. It takes only 100 microseconds for the shutters to move and the system has a faster reaction time than LCD pixels, which are each paired with a color filter to allow either red, blue or green light to pass.

IGZO (indium gallium zinc oxide) refers to Sharp's semiconductor technology used with the MEMS shutters. The MEMS-IGZO displays can be built using existing LCD manufacturing infrastructure, which would be a cost benefit.

At the briefing, Sharp showed off the latest MEMS-IGZO prototype, a 7-inch WXGA tablet that displayed a variety of images and text. As the screen changed from color photos to grayscale text, the reading on a power meter next to the device dropped.

Another MEMS-IGZO tablet was set up under a light that emulated bright sunlight. It displayed pages from "Alice in Wonderland" that were easy to see and read in the glare.

Sharp's 2017 target for mass production follows questions about when the tie-up would reach fruition. Qualcomm invested US$120 million in the struggling Japanese electronics maker over the past two years, but that injection was dependent on the latter meeting guidelines for its financial health.

Join the newsletter!

Error: Please check your email address.
Rocket to Success - Your 10 Tips for Smarter ERP System Selection

Tags sharpPixtronixqualcommComponentsdisplays

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Tim Hornyak

IDG News Service
Show Comments

Most Popular Reviews

Latest Articles

Resources

PCW Evaluation Team

Ben Ramsden

Sharp PN-40TC1 Huddle Board

Brainstorming, innovation, problem solving, and negotiation have all become much more productive and valuable if people can easily collaborate in real time with minimal friction.

Sarah Ieroianni

Brother QL-820NWB Professional Label Printer

The print quality also does not disappoint, it’s clear, bold, doesn’t smudge and the text is perfectly sized.

Ratchada Dunn

Sharp PN-40TC1 Huddle Board

The Huddle Board’s built in program; Sharp Touch Viewing software allows us to easily manipulate and edit our documents (jpegs and PDFs) all at the same time on the dashboard.

George Khoury

Sharp PN-40TC1 Huddle Board

The biggest perks for me would be that it comes with easy to use and comprehensive programs that make the collaboration process a whole lot more intuitive and organic

David Coyle

Brother PocketJet PJ-773 A4 Portable Thermal Printer

I rate the printer as a 5 out of 5 stars as it has been able to fit seamlessly into my busy and mobile lifestyle.

Kurt Hegetschweiler

Brother PocketJet PJ-773 A4 Portable Thermal Printer

It’s perfect for mobile workers. Just take it out — it’s small enough to sit anywhere — turn it on, load a sheet of paper, and start printing.

Featured Content

Product Launch Showcase

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?