Japanese joint venture demos 4K display for tablets and laptops

JDI 4K display
It's overcome 4K hurdles

Japanese Display Inc., a joint venture bringing together some of Japan's biggest household names, has unveiled what is possibly the smallest 4K display.

With a screen diagonal of 12.1 inches, it will pave the way for tablets and laptops with 4K displays although the usefulness of such a screen is still debatable.

Panasonic was the first one to launch a 4K tablet at CES in January but that had a massive 20-inch display. In comparison, the screen, which is currently on show at JDI's booth at the FPD International 2013 expo in Japan, has a pixel density of 365ppi and is less than 2mm thick.

It uses a low temperature poly silicon technology (LTPS), which allows it to consume a mere 3.6W at 500cd/m2 and keep the dead-band, the unused bezel area, to a mere 2mm (6.8mm at the bottom).

Mass effect

In November 2012, JDI demoed a 5-inch full-HD panel, one which was the precursor of the panel that made its way in the Sony Xperia Z and the Xperia Z1. This week's announcement demonstrates that the company has managed to iron out challenges linked with mass producing bigger displays with much higher resolutions.

The group was established in April 2012 and regrouped the LCD operations of Hitachi, Sony and Toshiba with a significant amount of money from the Innovation Network Corporation of Japan.

It's worth noting that JDI has close ties with Apple being one of the screen suppliers for the Apple iPhone 5 which means that this display may well appear in the follow-up to the company's Retina Display devices (iPad or MacBook Pro).

Latest in Pro
Branch office chairs next to a TechRadar-branded badge that reads Big Savings.
This office chair deal wins the Amazon Spring Sale for me and it's so good I don't expect it to last
Saily eSIM by Nord Security
"Much more than just an eSIM service" - I spoke to the CEO of Saily about the future of travel and its impact on secure eSIM technology
NetSuite EVP Evan Goldberg at SuiteConnect London 2025
"It's our job to deliver constant innovation” - NetSuite head on why it wants to be the operating system for your whole business
FlexiSpot office furniture next to a TechRadar-branded badge that reads Big Savings.
Upgrade your home office for under $500 in the Amazon Spring Sale: My top picks and biggest savings
Beelink EQi 12 mini PC
I’ve never seen a PC with an Intel Core i3 CPU, 24GB RAM, 500GB SSD and two Gb LAN ports sell for so cheap
cybersecurity
Chinese government hackers allegedly spent years undetected in foreign phone networks
Latest in News
DeepSeek
Deepseek’s new AI is smarter, faster, cheaper, and a real rival to OpenAI's models
Open AI
OpenAI unveiled image generation for 4o – here's everything you need to know about the ChatGPT upgrade
Apple WWDC 2025 announced
Apple just announced WWDC 2025 starts on June 9, and we'll all be watching the opening event
Hornet swings their weapon in mid air
Hollow Knight: Silksong gets new Steam metadata changes, convincing everyone and their mother that the game is finally releasing this year
OpenAI logo
OpenAI just launched a free ChatGPT bible that will help you master the AI chatbot and Sora
An aerial view of an Instavolt Superhub for charging electric vehicles
Forget gas stations – EV charging Superhubs are using solar power to solve the most annoying thing about electric motoring