TDK to mass-produce its See-through HD organic electroluminescent display

TDK Corporation has started mass production of a newly developed see-through passive matrix type QVGA organic EL display from this Spring. TDK says this is the world's first such product.

Organic EL displays are formed through thin-film techniques, using organic material that emits light in response to an electric current. Organic EL displays feature high brightness, wide viewing angle and are easy on the eye. All organic EL displays from TDK employ the passive matrix principle. These Organic EL display are designed for use in mobile phones and other such mobile devices.

The see-through type organic EL display for mobile applications has a field angle of 2.4 inches, transmittance of 40 percent, and brightness of 150 cd/m2. The newly developed product is a see-through type, but is constructed so that the display contents cannot easily be seen from behind, to protect the user's privacy.
The display area of size is 36.0 x 47.9 mm and number of pixels is 240 x RGB x 320.

The use of the color filter principle means that the service life of the each Red, Green and Blue color of RGB elements is identical, and color shift is absent. Furthermore, favorable temperature characteristics allow a wide operating temperature range from -20 to +85 degrees C.