TDK Corporation has begun mass production of its see-through,passive matrix type 2.4-inch, QVGA (240 x 320) organic EL display, codenamed ( UEL476).
The display is formed through thin-film techniques, using organic material that emits light in response to an electric current. It has a transmittance of 40 percent, but is constructed so that, it doesn’t allow the content to be viewable from behind, to protect the user’s privacy. This EL display has been designed to be used in mobile phones and compact electronic devices.
