IP Library › Granted Patent US 12,745,496
Granted Patent B2
US 12,745,496 · App. 18/624,208 · Granted Sep 22, 2026

Display apparatus

Inventors: Koichi Miyasaka (Tokyo, JP); Yoshikatsu Imazeki (Tokyo, JP); Yoichi Kamijo (Tokyo, JP); Shuichi Osawa (Tokyo, JP); Yoshifumi Kamei (Tokyo, JP)
Assignee: JAPAN DISPLAY INC.
H10H20/857H10H20/8312H10W90/00
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Quick Facts
Patent No.
US 12,745,496
App. No.
18/624,208
Granted
Sep 22, 2026
Kind
B2
Abstract

Performance of a display apparatus is improved. The display apparatus includes: a first terminal electrically connected to a first electrode of an LED element (inorganic light emitting diode element); and a second terminal electrically connected to an electrode of the LED element. In plan view, the first terminal is at a position overlapping the LED element, and the second terminal is arranged to continuously surround the LED element.

Claims (40)

1 . A display apparatus comprising:

a first inorganic light emitting diode element including a first electrode on a first main surface and a second electrode on a second main surface opposite to the first main surface;

a first terminal electrically connected to the first electrode;

a second terminal electrically connected to the second electrode;

a first insulating layer covering the first terminal, the first inorganic light emitting diode element and the second terminal; and

a first conductor pattern arranged on the first insulating layer and electrically connected to each of the second electrode and the second terminal of the first inorganic light emitting diode element,

wherein, in plan view,

the first terminal is at a position overlapping the first inorganic light emitting diode element, and

the second terminal is arranged to continuously surround the first inorganic light emitting diode element.

2 . The display apparatus according to the claim 1 ,

wherein the second terminal is covered with a first metal layer, and

in plan view, the first metal layer is arranged to continuously surround the first inorganic light emitting diode element.

3 . The display apparatus according to the claim 2 ,

wherein the first terminal and the second terminal are arranged on a first surface of a second insulating layer, and

when the first surface of the second insulating layer is a reference plane, a height of a top of the first metal layer from the reference plane is larger than a height of a light emitting layer of the first inorganic light emitting diode element from the reference plane.

4 . The display apparatus according to the claim 3 ,

wherein the height of the top of the first metal layer from the reference plane is equal to or smaller than a height of the second main surface of the first inorganic light emitting diode element from the reference plane.

5 . The display apparatus according to the claim 2 ,

wherein the first terminal and the second terminal are arranged on a first surface of a second insulating layer, and

a distance from a top of the first metal layer to the second terminal is larger than a thickness of the second terminal.

6 . The display apparatus according to the claim 2 ,

wherein the first metal layer includes a first side surface facing the first inorganic light emitting diode element through the first insulating layer, and

the first side surface has a curved surface.

7 . The display apparatus according to the claim 2 ,

wherein a bump electrode is formed between the first terminal and the first electrode of the first inorganic light emitting diode element so that the first terminal is electrically connected to the first electrode through the bump electrode, and

at least a part of a material configuring the bump electrode contains the same material as a material configuring the first metal layer.

8 . The display apparatus according to the claim 2 ,

wherein the first metal layer in plan view has an annular shape.

9 . The display apparatus according to claim 1 further comprising:

a second inorganic light emitting diode element including the first main surface, the second main surface, the first electrode and the second electrode; and

a third terminal electrically connected to the first electrode of the second inorganic light emitting diode element,

wherein is the second terminal electrically connected to the second electrode of the second inorganic light emitting diode element,

in plan view,

the third terminal is at a position overlapping the second inorganic light emitting diode element,

the second terminal includes a first opening and a second opening spaced apart from the first opening,

the first inorganic light emitting diode element is arranged inside the first opening, and

the second inorganic light emitting diode element is arranged inside the second opening.

10 . The display apparatus according to the claim 8 ,

wherein the second terminal is covered with a metal layer, and

the metal layer in plan view is arranged to continuously surround the first inorganic light emitting diode element.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 2, 2024
From: MIYASAKA, KOICHI; IMAZEKI, YOSHIKATSU; KAMIJO, YOICHI; OSAWA, SHUICHI; KAMEI, YOSHIFUMI
To: JAPAN DISPLAY INC.
Reel/Frame 066973/0372 →
Priority Claims (1)
JP 2023-060913 · Apr 4, 2023 · national
Continuity (1)
Related Publication 20240339581A1 · Oct 10, 2024
References Cited (3)
US 12520646B2 · Park · 2026 [cited by examiner]
US 20220209081A1 · Abe et al. · 2022 [cited by applicant]
JP 2021048373A · 2021 [cited by applicant]