Still Plenty of LED/Lighting Breakthroughs Left
... For many in the LED industry who have watched, and lived, the steady march of technology for the last decade, it's pretty easy to get jaded about the technology. Not in a bad way, but just a bored kind of one. "Let me guess," they say, "next year we'll...
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Osram Opto Semiconductors Launches Displix Oval for Outdoor LED Displays
LIGHTimes News Staff
October 30, 2014...Osram Opto Semiconductors has introduced a surface-mountable, oval-shaped
LED for outdoor displays called Displix Oval. It measures just 2.1 x 2.7 x 1.5
mm. The company contends that this small footprint allows almost twice as many
LEDs to be mounted on a board than with ordinary radial diodes, doubling both
the pixel density and the display resolution. According to Osram Opto the
higher pixel density and resolution results in extremely vivid images with high
The company points out that the high pixel density allows lower brightness
for individual pixels. Therefore, individual LEDs can operate on lower current.
Furthermore, the company says that combined with the durable packaging
materials, the lower required output extends the lifetime of the LEDs.
The Displix Oval has a black QFN (Quad Flat No Leads) housing, which the
company claims reduces reflections and increases the contrast and color quality
of the images displayed on the entire display.
“Being surface mounted, SMT LEDs like the Displix Oval have very
low tilt tolerances per diode. A display fitted with the new LEDs hence has a
stable and very homogenous color appearance when viewed from virtually any
angle,” said Sven Weber, who is in charge of product marketing of
the Displix Oval at Osram Opto Semiconductors.
According to the company, both the processes and the processing of the
Displix Oval are much simpler than with radial LEDs, greatly reducing OEM
customers’ further processing costs.
Additionally, the very flat Displix Oval requires less silicone for the
potting of the boards to protect the contacts from rain and moisture. This
enables customers to reduce the amount of material used, which again has a
considerable impact on their outlays. The LED has beam angles of 110°
(horizontal) and 60° (vertical). Red and yellow offer 1 candela, the green
version delivers 2.6 candela, and the blue provides 600 milli-candela.
Multi-layer Quantum Dot-based LED Achieves Performance Equivalent to Best Vacuum-Processed OLEDs
LIGHTimes News Staff
October 30, 2014...Researchers as Zhejiang University in Hangzhou, China, claim to have
achieved the highest efficiency for a solution processed red LED. The
researchers led by Xingliang Dai of the university's School of Material Science
and Engineering, said that the multi-layer, quantum dot-based red LED's
efficiency was equivalent to the best vacuum deposited OLEDs on the market. The
research was reported in the journal Nature
published online on October 29, 2014.
The researchers note that quantum dot LEDs tend to be inferior to the best
vacuum deposited OLEDs in terms of efficiency efficiency roll-off at high
current densities, turn-on voltage and lifetime under operational
The researchers report that their quantum dot-based LED produces
colour-saturated deep-red emission, sub-bandgap turn-on at 1.7 volts, high
external quantum efficiencies of up to 20.5 per cent, low efficiency roll-off
(up to 15.1 per cent of the external quantum efficiency at 100 mA
According to the researchers, the red, quantum dot-based LED has an expected
operational lifetime of more than 100,000 hours at 100 cd m−2.
The team inserted "an insulating layer between the quantum dot layer and
the oxide electron-transport layer to optimize charge balance in the device and
preserve the superior emissive properties of the quantum dots."
This optoelectronic performance is achieved by inserting an insulating layer
between the quantum dot layer and the oxide electron-transport layer to
optimize charge balance in the device and preserve the superior emissive
properties of the quantum dots. The researchers expect that their results will
spark further research, leading to high-performance, all-solution-processed
quantum-dot-based LEDs ideal for next-generation display and solid-state
LG Announces End of Plasma TV Business
LIGHTimes News Staff
October 30, 2014...LG Electronics of South Korea has officially announced the wind down and end
of its Plasma TV business, which will be by November. According to a Reuter's
LG Electronics revealed in regulatory filing that demand has declined in for
plasma TVs. LG said that the Plasma TV business currently accounts for only
about 2.4 percent of its revenue. LCD TVs have taken over the global market,
and OLED TVs are beginning to gain a foothold in the high-end TV market.
Reuters cited analysts who said that plasma displays were unable to compete
with the advances in screen resolutions and the lower power consumption of
LCD-TVs. LED backlit and edge lit TVs are starting to gain market share as
Market research firm, NPD DisplaySearch predicted in July that global plasma
TV shipments will decline to 500,000 in 2015, which is more than a 90 percent
drop off from the 5.2 million in 2014.
Samsung remains the only major display maker to still produce plasma TVs.
Panasonic reportedly exited the Plasma TV business last October.
Mercedes-Benz CLS Class Uses Oslon Compact LEDs for Adaptive Front Lighting
LIGHTimes News Staff
October 31, 2014...Mercedes-Benz has equipped its new CLS Class automobiles with adaptive front
lighting systems with Oslon Compact LEDs from Osram Opto Semiconductors. The
company says that the very compact, high-power LEDs, which measure 1.6mm by 1.2
mm, can be placed very close together in the headlight systems for adaptive
front lighting. In addition to this current project, Osram and Daimler are
collaborating to devise future automotive lighting systems as partners in the
µAFS research project that the German Federal Ministry of Education and
Research (BMBF) sponsors.
The adaptive front lighting system for the new CLS reportedly helps increase
visibility in every situation. Each module within the headlight consists of 24
LEDs that use the company's UX:3 chip technology to achieve high luminous
efficacy even at high currents. The modules can be arranged close together in
the headlight with a high degree of flexibility. Osram Opto notes that these
LEDs therefore provide the basis for both AFS and light guide solutions.
A camera mounted on the windshield covers the area in front of the vehicle.
From this camera four controllers select which LEDs to brighten, which to dim,
and which to turn off completely to achieve the ideal light distribution. The
controllers perform calculations based on the input from the camera 100 times
per second to determine the best lighting for the driver.
Samsung Ends LED Lighting Business, Continues LED Components Business
SSL Design News Staff
October 28, 2014...Samsung Electronics Co. Ltd. reported that it will end its LED lighting
business outside of South Korea. The company began the LED lighting business
just four years ago, but has seen increasing price pressure from rivals in
recent years. Pricing pressure across the industry has also lead Philips of the
Netherlands, a Samsung rival, to recently spin off its 100-year-old lighting
business, and it has lead Osram another LED lighting business rival to lay-off
about 8,000 employees.
A Reuters report cited an emailed statement from the company, "We will
remain active in the LED industry through our LED component business,"
adding that Samsung will focus on backlighting for displays of consumer
products like televisions.
Luminus launches 1W SMD LED with 170° Emission Angle
LIGHTimes News Staff
October 28, 2014...Luminus Devices Inc based in Billerica, Massachusetts, USA, has launched the
XNOVA Cube, a 1 watt SMD LED with a 170° viewing angle. Luminus contends that
the XNOVA Cube improves system efficacy, reduces cost, and simplifies
Unlike traditional mid-power LEDs, which Luminus says were originally
designed for LCD backlighting, Luminus designed the XNOVA Cube specifically for
illumination applications requiring high quality of light. The small 1.9mm by
1.9mm package has a 170 degree viewing angle, which the company claims is the
widest in the industry. Luminus claims that the XNOVA cube emits more light
than any mid-power LED.
“The XNOVA Cube has opened-up new design options for our customers
in the highly competitive panel lighting, linear and omni-directional lamp
markets,” said Jim Miller, executive VP of sales & marketing.
“They are able to reduce LED count by as much as 30% and at the same
time cut power consumption by 10%, which enables further cost reductions in
drivers, thermal systems, and optical components.”
Luminus Devices is exhibiting its XNOVA illumination product line at the
Hong Kong International Lighting Fair (27-30 October).
MeU Launches Wearable and App-Controllable LED Display
LIGHTimes News Staff
October 28, 2014...MeU of Toronto, Canada, announced the launch of its wearable LED display,
the MeU Square. A smartphone application can mange MeU Square, which the
company designed for customizing clothing and accessories. MeU Square, a square
16 by 16 grid of RGB LEDs allows the user to display any pattern, image, or
text to instantly communicate with people who can see the display. .
"We seek to improve communication with our surroundings, including
important alerts and updates that you may not get otherwise, like when the next
bus is coming," said Robert Tu, CEO and founder of MeU. "The display
is a great combination of function and design. The display's open-source
technology sets no limits to the designer's creativity across many applications
and is the perfect platform for the maker and developer communities."
The MeU team is working on developing applications for fashion, marketing,
cycling, and urban informatics. MeU says cyclists can display a flashing
pattern or other signals on their backs to communicate with other road users. A
group hike leader can keep participants informed or a construction worker can
wear a blinking patternto help alert those passing by of potentially unsafe
The company says that the ability to display public transit updates on the
vests of employees or receive weather alerts from pedestrians can help the city
to run smoother. Having been featured in Toronto's first men's fashion week,
the product can also portray a dynamic fashion statement.
The full-color LED matrix display consists of 256 LEDs, a microcontroller,
and a Bluetooth radio that enables wireless communication with other devices.
The company contends that the thin and flexible panel conforms to the body and
can be worn with any style of clothing. After downloading the smartphone app,
the user can choose from existing icons and animations or create their own
content to send to the LED display.
"We're looking for tech savvy developers, who are open to working with
the initial developer kit," added Tu. "The kit includes the MeU
Square, a rechargeable battery, a micro USB cable, and the MeU Demo Mobile
The MeU Square will be available for pre-order for $270 USD.
St. Paul Baseball Team to Get Daktronics Equipment at New Park
LIGHTimes News Staff
October 28, 2014...The St. Paul Saints baseball team out of Saint Paul, Minnesota USA, has
contracted Daktronics of Brookings, South Dakota. Under the contract,
Daktronics will design, manufacture and install a new video display and
scoreboard at their new field, CHS Field. The St. Paul Saints will be opening
their inaugural season next year at CHS Field. The Saints plan to have this
project completed later this fall.
"We've had a longstanding relationship with Daktronics in St. Paul and
with several other of our clubs in The Goldklang Group. Daktronics' products
and services are second-to-none and have come to play a big part in the fun we
try to create at every game. The displays at CHS Field are a perfect complement
to what will be the best baseball experience in North America," according
to Tom Whaley, Saints' Executive Vice-President.
The main video display for the team will measure about 49 feet wide by 27.5
feet high and will feature a 15HD pixel layout. Daktronics will install the
display in left-center field. In addition to sponsor advertisements, scoring
information, and game statistics, the display can show vivid graphics as well
as colorful animations and images. Daktronics says that displays will have
multiple levels of protection from the elements.
"Daktronics is excited to extend our relationship with the St. Paul
Saints, and to partner on the CHS Field project," said sales
representative Joey Hulsebus. "This innovated ball park will be an exciting
addition to the Lowertown community. The Daktronics products will assist in
developing a new game-day experience for the Saints fans."
The Saints will also be receiving a fixed-digit scoreboard that will display
basic baseball information such as pitch count, at bat, hits, and errors.
The Saints will also receive a bank of hours for the creation of digital
content that Daktronics Creative Services will produce and deliver. This
content will consist of any mixture of sponsorship messages, crowd prompts,
headshots, game opens and venue announcements at the request of the Saints.
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