The light-emitting diodes (LED) that are increasingly being applied to various lighting products can be modified in its form, in order to fit the purpose and functions of products such as chips, lamps, modules, light-emitting products, and cabinets. Whereas sign makers mainly use the LEDs in the form of modules, the light industry uses it in the form of lamplight products. Recently, LED displays systems in connecting it to the power source without electric wires have increased the spatial efficiency and its appearance in signs and of signs and interior decorations.

Wireless Makes a Whole Range of Things Easier
‘Wireless’ may be one of the hottest trends that have hit the recent home appliance market. All the cords and wires of electric appliances are anticipated to disappear soon, bringing about the age of wireless products, in which everything is connected and functions in invisible, intangible ‘connections’. The wireless LED display that has emerged recently is also a popular item in terms of signs and interior designs, as it has contributed to reduction or elimination of all those hideous, untidy cords. The technology of supplying power of LED-chips and modules has indeed diversified ways of expressing and decorating spaces using the wireless LEDs. Since the product made of tempered glass acts as a module, the interior LEDs can emit light in any and every direction, as if it were incandescent. In other words, the wireless LEDs allows light emission from both the front and back of a product. Thanks to this particular advantage, the technology is widely applied to almost any light-using fields, including signs, interior design, interior ornaments, landscape lighting fixtures, lighting apparatuses, exhibition booths, furniture, shower stalls, and so on. Director Jeong Seong-gyu of JProject Co., Ltd., which has developed the wireless LED, explains: “It becomes easier to appreciate the products if you think of the module, which sign makers primarily use, made of glasses and it completely is itself transparent. This big, glass, transparent LED module is then modified in its form to fit the purposes and functions of various products, including signs, P.O.P., interior ornaments & design, and so on.”

A Leading Edge Technology
Just the fact that no electric cord is visible does not mean there is none. As a matter of fact, the only LEDs is visible and emits within the glass walls in every direction but the glass walls act as electric wires. The secret of producing light without virtually visible power-supplying cords lies in the producing procedure as follows: the glass walls are first coated with transmitters, so that electricity can flow throughout the glass; the next step is to cut where the LED chips are to be placed using a router in V pattern; once the LED chips become ready to be placed, circuits that will be supplying power to each LED chip are laid in certain patterns. Although it is simple and easy to lay the circuits that place the LED chips in a check-board-like pattern, a more sophisticated and delicate technique of structuring and laying circuits is needed if the LED chips are to be planted in irregular patterns, such as circles and non-linear forms. Once the power-supplying circuits are installed, the LED chips are planted and covered with resin, a type of transparent epoxy. Because the resin protects the LED from exterior damages completely, it can be applied to the external use as well. The product can be used just as it is now, but another layer of glass is added in order to enhance durability. Application of two panels of 4mm-tempered glasses is an effective way to maintain higher durability than that of one 10mm-tempered glass panel. If the panel in the size of 10m-width X 2m-height were to be designed for an exhibition booth, acryl or general glasses that have less smoothness would not be used to structure the circuits, since their surfaces are uneven.

A Wide Range of Applications
This product, which was first recognized and acclaimed by other countries, was used to make the light apparatuses of the lobby of the OPEC(Organization of the Petroleum Exporting Countries) Headquarter, located in Vienna, Austria. The lighting source was also used for spatial design of other prominent architectural structures and exhibition locations, including Hotel Esplanade of Berlin, Germany and Hakuzo Classic Concert Hall of Tokyo, Japan. Most of the current products are of white LEDs, and monochromatic LED can be used for any color and design of any space. Since the current LEDs allows for color changes, display changes, and dimming function, a perfect color change just like a grandiose full-color LEDs display board has yet to be achieved, since the product is composed of circuits structured by glass partitioning, not by electric cords.