Transparent OLED

OLED displays have their place where brilliant, bright colors and high contrast are required. They outperform LCD (TFT) in several ways: The colors are generated by actively light-emitting pixels, and not from the interaction of backlight and color filter as with TFT. If they are switched off, the pixel is black, whereas in TFTs a dark gray spot remains, which results from the transmission of the liquid crystal when the backlight is fully switched on. Only with local area dimming, where the brightness of the backlight is controlled depending on the image content, does the TFT catch up.

The new transparent OLED from LG Display brings another factor into play: transparency. This means that not only can bright images and information be displayed, but the background can also be included.

The illustration shows a simulation for a museum installation: while the object in the background is optimally illuminated and strongly protected against theft and vandalism, information can be displayed in the foreground.

The transparency of the OLED is about 40%. As a comparison, a conventional TFT is well below 10%.

The self-luminous display offers perfect picture quality. With Full HD resolution and a wide color gamut and simultaneous transparency for the world behind the display, it impresses every viewer. The electronics almost completely disappear: The surrounding frame is very slim and the control board is connected with a 3m long cable and can be mounted remotely. This also simplifies the assembly of several displays to a large screen.