Display device and electronic device with peripheral connection to cathode electrode
AssigneeSony Semiconductor Solutions Corporation
InventorKouichi Nakamura
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Abstract
A display device of the present disclosure includes an organic EL layer formed on a circuit portion, which is formed on a substrate, with an insulating film interposed therebetween, a cathode electrode formed on the organic EL layer in common to all pixels, and a metal wiring provided on an outer peripheral portion of an effective pixel region and electrically connecting the cathode electrode to a wiring of the circuit portion. Then, the metal wiring has a recess or a projection on a contact surface in a connection portion with the cathode electrode. Furthermore, an electronic device according to the present disclosure has the display device having the above configuration.
Claims20
A display device comprising:
- an organic electroluminescence (EL) layer formed on a circuit portion, which is formed on a substrate, with an insulating film interposed therebetween;
- a cathode electrode formed on the organic EL layer in common to a plurality of pixels;
- and
- a metal wiring formed on an outer peripheral portion of an effective pixel region and electrically connecting the cathode electrode to a lower wiring of the circuit portion,
- wherein the metal wiring has a plurality of projections arranged along a connection portion with the cathode electrode, each of the plurality of projections electrically connecting the cathode electrode to the lower wiring of the circuit portion.
Dependencies are inferred from the claim text.