Japanese broadcaster unveils tomorrow's TVs

Japanese broadcaster NHK is developing technologies that will lead to foldable televisions and smaller HD plasma screens.

Japan's public broadcaster showed off some bleeding-edge display technologies on Thursday that could one day lead to flexible TVs that roll up and slip in the pocket, and to smaller high resolution plasma displays than are available today.

Broadcasting company Nippon Hoso Kyokai (NHK) has developed a flexible display that measures 5 inches in diagonal using a new type of "high-brightness" ink. It is the biggest display developed to date using the ink, and the technology could be used to create a flexible TV in as little as seven years, according to Shizuo Tokito, a senior research scientist at NHK's Science and Technical Research Laboratories (STRL), during an open day in Tokyo on Thursday.

The phosphorescent ink is printed in spots on the display and sandwiched between electrodes. When a current is passed through the screen, the ink creates white light which is turned into colors using filters, creating an image on the screen.

The 5-inch screen has a resolution of only 160 pixels by 120 pixels, far below that of conventional LCD screens. NHK needs to refine the technology in order to reach its next target -- a 12-inch screen that it hopes to develop by 2010, Tokito said. The TV tuner and controls will be embedded in the rollable display, the researchers said. NHK must also find a partner to manufacture the products.

The ink can shine four times brighter than other inks being used to develop flexible displays, according to Tokito. This allows displays to be built that use far less electricity. "If you are talking about portability for flexible TVs, low power consumption is essential," he said.

The company's roadmap calls for 15-inch flexible panels with resolution of 640 pixels by 480 pixels being ready for commercial production in about 2012, and 23-inch panels with 1920 pixels by 1080 pixels resolution by 2017.

Researchers at STRL are also trying to shrink the size of pixels to bring HDTV to flat panels that are smaller than those on sale today, they said. To that end, the laboratory is working on two technologies: one that refines today's plasma TV technology, and another based on a new technology called FED (field emission display).

Working with Japan's Pioneer, a big maker of plasma TVs, NHK has shrunk the pitch of plasma display pixels to 0.3 millimeters, about a third that of many of today's plasma televisions, according to Yasushi Motoyama, a senior research engineer at STRL. Pixel pitch refers to the distance from the center of one pixel to the center of an adjacent pixel.

Decreasing the pixel pitch makes it possible to build panels that can show increasingly higher definition pictures on smaller and smaller screens, according to Lee Soo Kun, a consumer digital electronics analyst at Data Garage KK, a Tokyo-based consultancy. The pixel pitch of the most advanced plasma HDTVs is currently moving to 0.8 mm, he said.

Within five to 10 years, the technology should lead to plasma displays capable of showing HD pictures that have 1080 rows of pixels on TVs as small as 26 inches in diagonal, Motoyama said. Most plasma TVs today are greater than 40 inches, although some are smaller.

NHK also showed a 1.6-inch FED screen with a 0.24 mm pixel pitch, but can reduce this to 0.15 mm, according to Mizumoto Ushirozawa, a senior researcher at STRL. The technology should enable flat-panel HD screens only 13 inches along the diagonal in less than 10 years, he said.

Join the newsletter!


Sign up to gain exclusive access to email subscriptions, event invitations, competitions, giveaways, and much more.

Membership is free, and your security and privacy remain protected. View our privacy policy before signing up.

Error: Please check your email address.
Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Paul Kallender

IDG News Service
Show Comments

Cool Tech

Toys for Boys

Family Friendly

Stocking Stuffer

SmartLens - Clip on Phone Camera Lens Set of 3

Learn more >

Christmas Gift Guide

Click for more ›

Brand Post

Most Popular Reviews

Latest Articles


PCW Evaluation Team

Aysha Strobbe

Microsoft Office 365/HP Spectre x360

Microsoft Office continues to make a student’s life that little bit easier by offering reliable, easy to use, time-saving functionality, while continuing to develop new features that further enhance what is already a formidable collection of applications

Michael Hargreaves

Microsoft Office 365/Dell XPS 15 2-in-1

I’d recommend a Dell XPS 15 2-in-1 and the new Windows 10 to anyone who needs to get serious work done (before you kick back on your couch with your favourite Netflix show.)

Maryellen Rose George

Brother PT-P750W

It’s useful for office tasks as well as pragmatic labelling of equipment and storage – just don’t get too excited and label everything in sight!

Cathy Giles

Brother MFC-L8900CDW

The Brother MFC-L8900CDW is an absolute stand out. I struggle to fault it.

Luke Hill


I need power and lots of it. As a Front End Web developer anything less just won’t cut it which is why the MSI GT75 is an outstanding laptop for me. It’s a sleek and futuristic looking, high quality, beast that has a touch of sci-fi flare about it.

Emily Tyson

MSI GE63 Raider

If you’re looking to invest in your next work horse laptop for work or home use, you can’t go wrong with the MSI GE63.

Featured Content

Product Launch Showcase

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?