IP Library › Granted Patent US 12,376,432
Granted Patent B2
US 12,376,432 · App. 17/699,426 · Granted Jul 29, 2025

Method of manufacturing display device and display device

Inventors: Jong Chan Lee (Yongin-si, KR); Cheol Ku Kang (Yongin-si, KR); Hyun Kim (Yongin-si, KR); Jeong Su Park (Yongin-si, KR); Myeong Hun Song (Yongin-si, KR); Hyun Wook Lee (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H10H20/8312H10H20/01H10H20/857H10H20/032H10H20/0364
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Quick Facts
Patent No.
US 12,376,432
App. No.
17/699,426
Granted
Jul 29, 2025
Kind
B2
Abstract

A manufacturing method of a display device and a display device are provided. A manufacturing method of a display device includes: preparing a substrate including a light emitting area and a non-light emitting area; arranging a first electrode, a second electrode, a first uncut electrode, and a second uncut electrode on the substrate; forming a bank in the non-light emitting area of the substrate; arranging a light emitting element in the light emitting area of the substrate; removing at least a portion of each of the first uncut electrode and the second uncut electrode; arranging a first contact electrode electrically connecting the light emitting element and the first electrode; and arranging a second contact electrode electrically connecting the light emitting element and the second electrode, and the at least the portion of each of the first uncut electrode and the second uncut electrode is removed within an open area.

Claims (32)

1. A display device comprising:

a substrate comprising a light emitting area and a non-light emitting area;

a first electrode and a second electrode on the substrate;

a light emitting element on the light emitting area of the substrate and configured to emit light in a display direction;

a first insulating film covering at least a portion of each of the first electrode and the second electrode;

a first contact electrode and a second contact electrode electrically connected to the light emitting element; and

a bank on the non-light emitting area of the substrate and protruding in the display direction,

wherein at least a portion of the light emitting area is surrounded by the non-light emitting area, and the light emitting area comprises an open area and a contact area,

the first electrode and the first contact electrode are electrically connected within the contact area,

the second electrode and the second contact electrode are electrically connected within the contact area,

an end portion of the first electrode and an end portion of the second electrode are located within the open area,

the first insulating film includes an insulating end portion formed in the open area, and

the end portion of the first electrode and the insulating end portion are overlapped along the display direction in the open area.

2. The display device of claim 1 , further comprising a bridge electrode electrically connecting the second contact electrode and the second electrode,

wherein the first insulating film and the first electrode contact each other.

3. The display device of claim 2 , wherein the bridge electrode comprises a same material as the first contact electrode.

4. A display device comprising:

a substrate comprising a light emitting area and a non-light emitting area;

a first electrode and a second electrode on the substrate;

a light emitting element on the light emitting area of the substrate and configured to emit light in a display direction;

a first contact electrode and a second contact electrode electrically connected to the light emitting element;

a bank on the non-light emitting area of the substrate and protruding in the display direction;

a bridge electrode electrically connecting the second contact electrode and the second electrode;

a first insulating film covering at least a portion of each of the first electrode and the second electrode; and

a first contact hole and a second contact hole penetrating the first insulating film in the contact area,

wherein at least a portion of the light emitting area is surrounded by the non-light emitting area, and the light emitting area comprises an open area and a contact area,

the first electrode and the first contact electrode are electrically connected within the contact area,

the second electrode and the second contact electrode are electrically connected within the contact area,

an end portion of the first electrode and an end portion of the second electrode are located within the open area, and

in a plan view, the first contact electrode, the first contact hole, and the first electrode overlap each other, and the second contact electrode, the second contact hole, the bridge electrode, and the second electrode overlap each other.

5. The display device of claim 4 , further comprising a second insulating film of which at least a portion is on the first insulating film,

wherein the at least the portion of the second insulating film surrounds the second contact hole when viewed in a plan view, and is covered by the bridge electrode.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 21, 2022
From: LEE, JONG CHAN; KANG, CHEOL KU; KIM, HYUN; PARK, JEONG SU; SONG, MYEONG HUN; LEE, HYUN WOOK
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 059323/0540 →
Priority Claims (1)
KR 10-2021-0045458 · Apr 7, 2021 · national
Continuity (1)
Related Publication 20220328726A1 · Oct 13, 2022
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