Abstract: A thin-film electroluminescence (EL) device capable of displaying multiple colors has a laminated structure wherein back electrodes in stripes, a lower dielectric layer, a luminescence layer, an upper dielectric layer and transparent electrodes in stripes are sequentially formed on a transparent substrate in this order. The back electrodes intersect the transparent electrodes at right angles, and areas of the device where the back electrodes confront the transparent electrodes form picture elements. This device also has at least first and second color filters. The first and second filters are placed not only in corresponding picture-element areas of the transparent electrodes, but also in non-picture-element areas of the transparent electrodes and an upper dielectric layer such that the first color filter overlaps the second color filter in the non-picture-element areas.
Type:
Grant
Filed:
July 1, 1991
Date of Patent:
August 24, 1993
Assignee:
Sharp Kabushiki Kaisha
Inventors:
Kouji Taniguchi, Shigeo Nakajima, Masaru Yoshida