US 2009/0153046 A1 · DISPLAY DEVICE AND METHOD FOR PRODUCTION THEREOF

Abstract

A display device having a plurality of driving elements and wiring parts electrically connected to the driving parts, the display device includes: a plurality of first electrodes which are formed in correspondence to each driving element on the driving elements and the wiring parts; a plurality of light-emitting parts which are each formed on the first electrodes; a common second electrode which is formed from a material that transmits light from the light-emitting part and is formed on the light-emitting parts; auxiliary wiring parts with a lower resistance than the second electrodes; and contact parts which are formed in laminate structure from a plurality of conductive layers and which electrically connect the second electrodes and the auxiliary wirings with each other, with at least the lowermost conductive layer of the conductive layers of the contact parts being in direct contact with the second electrode.

Claims20

Dependent claims

A display device having

a plurality of driving elements and
wiring parts electrically connected to said driving parts,
the display device comprising:
a plurality of first electrodes which are formed in correspondence to each driving element on said driving elements and said wiring parts;
a plurality of light-emitting parts which are each formed on said first electrodes;
a common second electrode which is formed from a material that transmits light from said light-emitting part and is formed on said light-emitting parts;
auxiliary wiring parts with a lower resistance than said second electrodes;
and
contact parts which are formed in laminate structure from a plurality of conductive layers and which electrically connect said second electrodes and said auxiliary wirings with each other,
with at least the lowermost conductive layer of said conductive layers of said contact parts being in direct contact with said second electrode.

7 more elements

A method for producing a display device comprising the steps of:

forming on a substrate a plurality of driving elements and wiring parts such that these driving elements and wiring parts are electrically connected to each other;
forming a contact part having a laminate structure of a plurality of conductive layers;
forming on said driving elements and said wiring parts a plurality of first electrodes corresponding respectively to said driving elements and also forming auxiliary wiring parts, a step of forming light-emitting parts respectively on said first electrodes;
and
forming on said light-emitting layers a common second electrode from a material that transmits light from each light-emitting part and electrically connecting between said second electrode and said auxiliary part through said contact part,
with said auxiliary wiring being formed from a material having a lower resistance than said second electrode,
at least the lowermost conductive layer of said conductive layers of said contact parts being in direct contact with said second electrode.

4 more elements

A method for producing a display device comprising the steps of:

forming on a substrate a plurality of driving elements and wiring parts such that these driving elements and wiring parts are electrically connected to each other;
forming a contact part having a laminate structure of a plurality of conductive layers and integrally forming an auxiliary wiring part having the same laminate structure as said contact part;
forming on said driving elements and said wiring parts a plurality of first electrodes corresponding respectively to said driving elements;
forming light-emitting parts respectively on said first electrodes;
and
forming on said light-emitting layers a common second electrode from a material that transmits light from each light-emitting part and electrically connecting between said second electrode and said auxiliary part through said contact part,
with said auxiliary wiring being formed from a material having a lower resistance than said second electrode,
at least the lowermost conductive layer of said conductive layers of said contact parts being in direct contact with said second electrode.

5 more elements

Dependencies are inferred from the claim text.

Display device and method for production thereof

Life of this patent

Display device and method for production thereof

Life of this patent

Abstract

Claims20