A wireless future? Reasonance shows off its cordless TV at CES 2021

midian182

Posts: 6,298   +53
Staff member
Forward-looking: One of the many things CES 2021 has shown is just how fast TV technology is advancing, but these televisions still need to be plugged into an outlet. However, one company says it has the world's first "truly wireless TV;" no power cords required.

The wireless TV Reasonance took to CES 2021 is still a prototype, though it could offer a glimpse of a future where more devices are powered wirelessly without needing to touch charging stations physically.

The 40-inch television gets its power using "advanced magnetic resonance," which is based on classic magnetic resonance. It offers "high performance in power, efficiency, transfer distance, and design freedom," according to the company.

The charging system has a transfer distance of 50cm (around 20 inches), and users don't have to worry about misalignment and angle changes causing problems. Reasonance says integrating it into the wall or furniture won't impact the transfer efficiency, either.

Compared to other wireless solutions, Reasonance's tech is about 80 – 90 percent more cost-effective and works with TVs that use up to 120W.

The television might look like something from a 50's sci-fi show, but Reasonance has placed the receiving coil on the back panel for demonstration purposes only. The final product will have it placed inside the TV.

"There were few attempts to create a wirelessly working home devices, like TVs. Samsung was going to show a truly wireless TV at CES 2020 but they have canceled their plans. As they later clarified, the power efficiency achieved by the tech at this stage would not be enough to offer a stable source of power to the TV. With our technology the 'truly wireless TV' becomes a reality," says Anton Vishnevsky, the founder and CEO of Reasonance.

Reasonance says it is working on other prototypes, adding that the technology's flexibility—it has other applications, including e-vehicles—and cost-effectiveness make a cordless future more of a reality.

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QuantumPhysics

Posts: 4,064   +4,165
Yeah....I definitely want the inside of my home bathed in higher energy Electromagnetic waves than what's currently there.

Wireless energy really doesn't make sense in the home.

#1 You have to have those giant induction coils to make it work - which implies that the device needs to be affixed to a set position. Why not just run wires through the drywall?

#2 You can't take your TV outside of the house - or anything else using wireless electricity. Sometimes you want to: so you can work on the car in the garage with a radio or a TV.

#3 It's LESS efficient than wired power connection. That's the law's of thermodynamics at work.
 

SirDigby

Posts: 727   +410
TechSpot Elite
Yeah....I definitely want the inside of my home bathed in higher energy Electromagnetic waves than what's currently there.

Wireless energy really doesn't make sense in the home.

#1 You have to have those giant induction coils to make it work - which implies that the device needs to be affixed to a set position. Why not just run wires through the drywall?

#2 You can't take your TV outside of the house - or anything else using wireless electricity. Sometimes you want to: so you can work on the car in the garage with a radio or a TV.

#3 It's LESS efficient than wired power connection. That's the law's of thermodynamics at work.
also, when every house already has outlets aplenty, and extension leads are so cheap, what's the damn point
 

Underdog

Posts: 169   +96
Very little point, apart from the classic reply......"because they can".

Progress doesn't actually have to deliver improvement to be commercially successful these days.
 
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Puts in wireless consoles and controllers like with me pc peripherals cable boxes modems and desktop pcs monitors and laptops like with my smartphone and tablets soon. Bye-bye wires. Goes back to designing a li-ion-like replacement disposable aa/aaa battery nano/picocell design in the chemistry lab to last for 1-10 months.
 

terzaerian

Posts: 239   +284
There are a lot of applications where wireless power transmission could be used to great effect. I still don't understand why the industry hasn't designed a standard for PSUs that could link up with low-power peripherals like the mouse, keyboard, speakers or webcam to offer a TRULY wireless experience, as opposed to one that is "wireless" but still needs to either have batteries swapped or recharged periodically.

Doorbells and security cameras are also ripe candidates, as you either need to have an electrician come over to set up the wiring for them or again rely on batteries that will need charging, which is especially egregious for something which is going to be outdoors as battery and charging ports offer more ways for water and contaminants to invade the case. It would also open the market up to renters, who are more restricted in the permanent alterations they can make to their living space.

There are so many God damned amazing things the industry could be doing with wireless charging and all they want to do is slap it onto tablets, phones and TVs, devices which benefit from it the LEAST.