Moiré patterns have long been a problem when using LED within a broadcast environment, causing flickering and false colors to appear on the screen during video footage which can be distracting for the viewer. The effect occurs when the camera’s pixels do not line up with the fine pattern of the LED’s, providing a challenge for broadcasters which is usually combated by fixed camera angles and shots.
For this reason, some people might think an LED display product is an unconventional entry into the broadcast realm, however SiliconCore has re-written the rules of this technology with its very tight pixel pitch displays and specialized circuitry that eliminates ghosting.
Completely eliminating moiré patterns on high resolution LED displays has never before been accomplished, but the LED designer and manufacturer has recently developed a groundbreaking solution that totally removes the interference.
The Norwegian Broadcasting Corporation (NRK) is the first broadcaster in the world to install the unique solution, which has been dubbed the world’s first high resolution LED video wall with an anti moiré filter, as part of a large project to create a new state-of-the-art studio.
Comprising of three TV channels, three radio stations and a plethora of Internet, podcast and phone programs, NRK is Norway’s largest media house and public service broadcaster. The station had strict requirements, needing a screen that would eliminate moiré patterns during broadcasts as well as requiring the same true to life color match of presenters in the studio and those on screen during live interviews.
To create the next generation of television studio, SiliconCore worked closely with its Norwegian partner, Display Systems, to create the solution, giving NRK much more freedom when choosing camera positions and zooming during shots.
The revolutionary new solution is set to transform the TV broadcasting industry and encompasses SiliconCore’s new Peony Broadcast LED panel
driven by the company’s patented Common Cathode technology.
Steve Scorse, VP EMEA for SiliconCore explains:
“SiliconCore’s Common Cathode technology is the perfect solution for broadcast applications as it uses a much more efficient design to drive the LEDs than previous products. Combine this with the anti moiré solution we developed specifically for NRK and the result is an innovative display offering remarkable benefits to the broadcast industry. The solution was created over a 12 month period of extensive testing and benchmarking and was finally completed in August this year. Not only does this new solution provide any broadcast studio with new levels of freedom and creativity, as an added bonus it also enhances contrast and black level in the picture.”
The one-of-a-kind solution is configured of four 2.6mm Peony Broadcast LED panels at a resolution of 4992 x 768 pixels each and measuring a total of 13.5m by 2m, making for a striking back drop and live correspondence screen.
The display is the flagship feature of the studio running along two sides in an ‘L’ formation and taking up a significant portion of the approx. 30 metre long back wall. Content wise, it is split into four different sections with each able to be used for different presenting functions, from a backdrop for images, statistics and highlighting key points of a story through to a live correspondence screen for interviews.
Jan-Eirik Lien, Leader steering committee, NRK comments:
“This is something we have wanted for a long time so are pleased to see it finally is in place. Design and lighting solutions never seen before.”
Tor Gjermund Eriksen, CEO, NRK adds:
“Over the last few years solutions have arisen that we did not think possible in 2011. We wish to be innovative and at the forefront of technology and sometimes take big steps. This is more than a studio opening, it’s a major milestone.”
SiliconCore has revolutionized the LED display industry by developing a new way to drive the LEDs using Common Cathode technology, replacing the traditional Common Anode approach. The Common Cathode mode is much more efficient at generating a given brightness for a given amount of power, ensuring that less power is wasted as heat, reducing power consumption and increasing the lifespan of the display. The end result of displays using Common Cathode technology is a beautiful display that offers a brilliant resolution, a super fast refresh rate of over 2,000Hz and viewing angles that perform even with extreme off axis camera shots all while providing market leading total cost of ownership.
Kjetil Edvardsen, CEO for Display Systems concludes:
“At first, the task given from NRK seemed almost impossible. We had a great partner and LED product through SiliconCore and its new 2.6mm Peony
broadcast display. However, on such high-resolution LED video walls, removing moiré had never been accomplished.
“The development of an anti moiré filter was very difficult, as each possible solution to a challenge seemed to create whole new sets of challenges. However, working closely with SiliconCore, and especially their CTO Nedi Nadershahi, we managed to develop a solution that not only satisfied NRK’s moiré removal requirements, but also added features that greatly improved contrast and black level with absolutely no reflections from studio lights.
“NRK is breaking new ground with this state-of-the-art studio. Not only with regards to this one of a kind LED without moiré, but also the creative backdrop design and use of technology. This innovative, groundbreaking and flexible solution for removing moiré opens a new set of possibilities for the Broadcasting Industry worldwide.”
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