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— R. Colin Johnson, Advanced Technology Editor, EE Times

SG73P2BTTD49R9F_Datasheet PDF

— R. Colin Johnson, Advanced Technology Editor, EE Times

Work and interactions [on 5G] are happening in the US between companies and academic researchers, but the academic funding model in the US is not focused on labeling it 5G or organizing it under one umbrella organization,” says Rasmus Hellberg, a senior director of technical marketing at Qualcomm.

5G needs to implement a unified design for licensed and unlicensed spectrum including millimeter wave frequencies, Hellburg said in an email. The technology will need to deliver higher data rates, lower latencies, and greater capacity, but it also will have to serve a wide variety of use cases, according to Hellberg.

SG73P2BTTD49R9F_Datasheet PDF

In Hellberg’s view, that means 5G will need to:

Next page: Are more efforts needed?

PORTLAND, Ore. — LG is first out of the gate with a completely flexible large-scale (18-inch) display that can be rolled up for transport into a three-centimeter (1.2-inch) scroll. The transparent display could be unfurled and hung on the wall, laid on a tabletop, or mounted in a conventional frame. Though it is only a demonstration prototype, LG predicted that it will have a 60-inch version with even higher transmittance on the market by 2017.

SG73P2BTTD49R9F_Datasheet PDF

LG has demonstrated the ability to produce displays on flexible substrates for some time, working on getting that to commercialization is quite a project,” Paul Semenza, president of NPD DisplaySearch, told EE Times. We will start seeing smaller flexible displays over the next couple of years, such as those in a smart watch, but they will just be flexible one time when put behind a curved glass cover, but to have them flexible in any shape at any time is some time off.”

SG73P2BTTD49R9F_Datasheet PDF

The organic light emitting diode (OLED) display needs no backlight and, being deposited on a transparent substrate, could display schematics and other graphics in mid-air. LG demonstrated its mid-air display in order to prove that it had mastered the basic technologies needed for rollable transparent displays of any size, but there are still significant hurdles to commercialization — mainly the inability to protect the OLED from moisture and oxygen, both of which destroy the display.

To enable new modules, Google will have at least two contractors make a blank module platform it designed currently based on an FPGA. A follow-on version with an ASIC being developed by Toshiba will give engineers twice as much space to pack in their innovations.

To prime the pump, Google recently announced a $100,000 challenge for the best module design. It showed a working prototype phone that booted Android two weeks ago.

Taiwan ODM Quanta is working on the basic skeletons that will carry the modules. The 9mm thick base includes a flexible circuit board and 400 mAh battery for system functions.

In terms of its core technical challenges, Google and partners are working on new kinds of antenna designs integrated into the module packages. They require new antenna modeling tools and deposition techniques.

Designers are still experimenting with different capacitive, inductive and hybrid contactless interfaces to link the modules and skeletons. The approach keeps the interconnects thin while supporting data rates in tens of GHz. On the electrical level, Google chose the MIPI M-Phy and Unipro interfaces because they are widely used in smartphones and do not use the master/slave approach of alternatives like USB and PCI Express.


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