By combining multiple ZRD-1 base units, each measuring 403x453mm with a pixel count of 360x320, large B-to-B applications can be designed for digital signage, public viewing or showroom displays. 12x3 units will make a 200-inch display with 3,840x1,080 pixels on a 4.8x1.4m 2 viewing area. The wall display boasts a contrast ratio of 1,000,000:1, with colour gamut about 140% of the sRGB color space and brightness up to 1,000cd/m 2 across almost 180° of viewing angle, while only drawing 200W at maximum brightness, claims Sony.
Sony justifies the high contrast ratio of its ZRD-1 module thanks to its unique design with RGB pixels as small as 0.003mm 2 and placed apart so as to increase the ratio of black on the entire screen to 99% or higher (this compares with conventional LED displays made by mounting red, green and blue LED chips in a surface-mounted SMD package with a typical black occupancy of 30 to 40%).
One way Sony found to increase the mounting efficiency of LED chips seems to be through the use of sub-assemblies consisting of 120 (vertical) x 80 (horizontal) Ultrafine LEDs, the ZRD-1 base module being itself an assembly of three by four such sub-assemblies.
The company is further developing the technology to possibly support 3D displays, curved screens, and high dynamic range.
Visit Sony at www.sony.net