US 11,776,973 B2 · Method of manufacturing display device

Abstract

A method of manufacturing a display device, the method including providing a substrate, forming a first electrode, a second electrode spaced from the first electrode and in a same plane as the first electrode, a first alignment line connected to the first electrode, and a second alignment line connected to the second electrode on the substrate, self-aligning the plurality of light emitting elements by providing a solution containing a plurality of light emitting elements on the substrate, removing the first alignment line and the second alignment line from the substrate on which the plurality of light emitting elements are self-aligned, forming a first contact electrode electrically connecting one end of each light emitting element to the first electrode, and forming a second contact electrode electrically connecting an other end of each light emitting element to the second electrode.

Claims20

Dependent claims

A method of manufacturing a display device, the method comprising:

forming a first electrode, a second electrode spaced from the first electrode, a first alignment line connected to the first electrode, and a second alignment line connected to the second electrode on a substrate;
disposing a plurality of light emitting elements on the substrate, at least one of the plurality of light emitting elements being between, and separated from, the first electrode and the second electrode;
supplying a first voltage to the first alignment line, and supplying a second voltage to the second alignment line;
removing at least one portion of the first alignment line and the second alignment line;
forming a first contact electrode electrically connecting a first side of each light emitting element of the plurality of light emitting elements to the first electrode, the first contact electrode having a width greater than that of the first electrode;
and
forming a second contact electrode electrically connecting a second side of each light emitting element to the second electrode.

4 more elements

A method of manufacturing a display device, the method comprising:

providing a substrate comprising a display region on which a plurality of pixels are provided and a non-display region on at least one side of the display region;
forming at least one transistor on the substrate at the display region;
forming a passivation layer on the substrate;
forming first and second electrodes on the passivation layer corresponding to the display region, the second electrode being spaced from the first electrode;
forming a first alignment line connected to the first electrode and forming a second alignment line connected to the second electrode on the passivation layer corresponding to the non-display region;
disposing a plurality of light emitting elements on the passivation layer, at least one of the plurality of light emitting elements being between, and separated from, the first electrode and the second electrode;
supplying a first voltage to the first alignment line, and supplying a second voltage to the second alignment line;
removing at least one portion of the first alignment line and the second alignment line using an etching method;
forming a first contact electrode electrically connecting a first side of each light emitting element of the plurality of light emitting elements and the first electrode, the first contact electrode having a width greater than that of the first electrode;
and
forming a second contact electrode electrically connecting a second side of each light emitting element and the second electrode.

8 more elements

Dependencies are inferred from the claim text.

Method of manufacturing display device

Life of this patent

Method of manufacturing display device

Life of this patent

Abstract

Claims20