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OLED quality inspired flat LED design

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автор : Shenzhen Crown Lighting

Время обновления : 2021-07-10 20:42:54

OLED quality inspired flat LED design

As conventional lighting OLED photography lags due to cost and manufacturing complexity, lighting designers and manuals can look forward to efficient and cost-effective LED light design.

Compared with LEDs, one of the stumbling block is the performance of OLEDs. Today's advanced LEDs achieve better light output, lifetime and efficacy.

The US Department of Energy Paper shows that the life expectancy of OLED lighting products decreases with increasing brightness-life expectancy is 40,000 hours, brightness is 25%, or 10,000 hours, brightness is 100%.

The impact design of ultra-thin OLED has inspired a new technology that can fill the missing gap in OLED. What if it is possible to produce ultra-thin flat light sources without sacrificing performance?

In recent years, a new technology has entered the market that utilizes edge LED panel structures in a miniaturized form. It uses a unique combination of light guide plate and optical film to maximize LED light output and uniformity and control beam angle.

Relying on the source of inspiration for smart phone design, the module is derived from the evolution of LCD, from backlighting to edge LED technology. In the past 10 years, smartphone displays have become so incredibly thin to minimize the amount of display occupied by the smartphone housing. In the improvement of standard LCD technology, the LED emits light into the light guide plate, and then is extracted through surface features that prevent total internal reflection.

However, in order to achieve viable lighting applications, the required optical challenges need to be addressed in terms of LED cavity output and the CCT of the display. With display applications, the cavity output needs to be low so as not to be too bright, and to display the CCT range between 8000k and 10,000k, which is too high to be suitable for lighting modules. Module life also depends on the improvement of thermal management.

In order to continue the vision of OLED, the required LED module needs to achieve a physically similar thin design to maintain its ability to be a surface light source. In addition, the electrical layout must be compatible with standard LED drivers, be able to connect in series and parallel configurations, and be fully controlled with DALI (Digital Addressable Lighting Interface) and other LED dimming lamps technologies.

The key to achieving these goals is the combination of optical film and light guide plate. A patented design has been developed to achieve uniformity of illuminance and beam angle to reduce glare while maintaining high-functioning internal cavity output.

For lighting designers and architects, lighting solutions need to be functional and decorative. Like OLED, the ultra-thinness of the planar LED module meets the designer's creative perspective, and the function of the module meets the architect's specifications. Ease of surface mounting is also important. The recommended method is an optically transparent adhesive film applied to the front or back of the module, which is rated IP20 and does not need to be enclosed in lamps for indoor applications. When used with a suitable low-voltage driver, the low power consumption of the module makes it compatible with battery-powered circuits.

Flat LED light technology is currently only available in one shape, but future generations promise to provide more, including color adjustability and connectivity to the Internet of Things (IOT) system. The main advantage of planar technology is lower manufacturing costs. The use of inorganic LEDs with a combination of dedicated thin films and light guides makes it possible to achieve the aesthetics of OLEDs at a lower price point. While retaining ultra-thin profiles, this new technology provides better results in terms of life time and performance.

Market indicators indicate that it is hoped that without the blinding light of standard LED sources, lighting solutions that can be closer to users, such as comfortable reading lamps, ugr<17 down light led, task lamp pendants, desk lamps and wall tubes. The clean lines, thin surface and light quality make the flat LED module meet the needs of many designers.

Many applications beyond decorative lamps can be realized by flat light sources. The market segment includes automobiles, RVs and aviation, as well as traditional residential and commercial spaces. For example, the glare-free 93 Cree lamp provides excellent color clarity, which, for example, will enhance any product on a retail display.

Like any industry, designers are always looking for the next great innovation. OLED has introduced an interesting concept in the lighting world, which has been improved over the years, making thinner displays, richer colors and better performance. It creates opportunities for the unique design of the lighting community, gives luminaire manufacturers creative freedom, while providing a compact form factor functional light source.

Much like the evolution of smartphone technology, investment in OLED R&D has shown ways to advance emerging technologies that can fill gaps. By using more efficient LED technology in similar profiles, the world will see an exciting new generation of lighting.

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Взаимосвязанные продукты

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