FirstSystem development of digital signage lighting LED panel

Japan FirstSystem developed a panel arrangement of 25 digital signage white LED lighting panel "LED SHELLPA-1", and in March 08 special planning 4 ~ 7 days to hold "decorative street circulation Renaissance" exhibition the exhibition "LED Next Stage" on the display (Figure 1). Panel size is 298mm * 298mm, thick 18.5mm, each 10lm luminous flux of white LED in the form of the spacing of 60mm in the panel. Panel overall power consumption of 4.5W. Direct connection 100V AC can be lit. If you set the diffusion plate at a distance of 60mm light-emitting surface, can realize uniform lighting panel. The average color rendering index (Ra) of 70 and 90 of the products of the two. When Ra was used as 90, the brightness was about 30% lower than that of Ra (). Not only can we use the panel alone, but also can be arranged like a ceramic tile to enlarge the luminous area (Figure 2). Scheduled for June 08 mass production.

Figure 1: equipped with 25 white LED LED panels

Figure 2: an example white LED with 9 panels and a diffuser plate is made from a combination of phosphor material on a blue LED chip. The product uses the South Korean semiconductor company (Seoul Semiconductor) produced white LED. United States CREE blue LED chip, TOYOTA synthesis of phosphor - BOS (Barium ortho-Silicate) materials and packaging technology of Seoul semiconductor

Source: Nikkei BP