IP Library › Granted Patent US 12,058,882
Granted Patent B2
US 12,058,882 · App. 17/200,402 · Granted Aug 6, 2024

Light emitting apparatus

Inventors: Koji Fujita (Yonezawa, JP); Shinsuke Tanaka (Yonezawa, JP); Yuji Saito (Yonezawa, JP); Shinji Nakajima (Yonezawa, JP)
Assignees: PIONEER CORPORATION; TOHOKU PIONEER CORPORATION
H10K50/844H10K50/805H10K50/84H10K59/122H10K59/173H10K2102/3031
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,058,882
App. No.
17/200,402
Granted
Aug 6, 2024
Kind
B2
Abstract

A light emitting apparatus ( 10 ) includes a substrate ( 100 ), an insulating layer ( 160 ), a light emitting element ( 102 ), a coating film ( 140 ), and a structure ( 150 ). The insulating layer ( 160 ) is formed over one surface of the substrate ( 100 ), and includes an opening ( 162 ). The light emitting element ( 102 ) is formed in the opening ( 162 ). The coating film ( 140 ) is formed over the one surface of the substrate ( 100 ), and covers a portion of the light emitting element ( 102 ), the insulating layer ( 160 ), and the one surface of the substrate ( 100 ). The coating film ( 140 ) does not cover another portion of the substrate ( 100 ) (for example, a portion of an end portion: hereinafter, referred to as a first portion). The structure ( 150 ) is located between the first portion of the substrate ( 100 ) and the insulating layer ( 160 ). The coating film ( 140 ) also covers the insulating layer ( 160 ).

Claims (30)

1. A light emitting apparatus comprising:

a substrate;

an insulating layer formed over the substrate and including an opening;

a light emitting element formed in the opening;

a coating film formed over the substrate and covering a portion of the light emitting element, the insulating layer, and the substrate;

a structure; and

a terminal,

wherein the coating film covers the structure,

wherein an upper surface of the structure is larger in width than a lower surface of the structure, in a second direction,

wherein the coating film does not cover a first portion of the substrate which is a portion of a region not covered with the insulating layer,

wherein the terminal is formed over the first portion of the substrate,

wherein the light emitting element includes:

a first electrode;

an organic layer formed over the first electrode; and

a second electrode formed over the organic layer, and

wherein the terminal has a same layer as that of the first electrode.

2. The light emitting apparatus according to claim 1 , wherein the structure extends in a first direction, and

the structure is longer than the insulating layer in the first direction.

3. The light emitting apparatus according to claim 2 , wherein

both a second portion of the substrate, which is located between the first portion and the structure, and a third portion of the substrate, which is located between the structure and the insulating layer, come into contact with the coating film, in the second direction intersecting the first direction.

4. The light emitting apparatus according to claim 3 , wherein the structure surrounds the insulating layer.

5. The light emitting apparatus according to claim 4 , further comprising

an interconnect formed on the substrate and connecting the terminal to the light emitting element.

6. The light emitting apparatus according to claim 5 , further comprising:

a plurality of the light emitting elements; and

an insulating partition wall formed over the insulating layer and separating the second electrode of each of the plurality of light emitting elements,

wherein the structure is formed of a same material as that of the partition wall.

7. The light emitting apparatus according to claim 1 , wherein the terminal includes a part of the first electrode,

wherein the organic layer is not formed over the part of the first electrode, and

wherein the part of the first electrode is located outside the insulating layer in a plain view.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 12, 2021
From: FUJITA, KOJI; TANAKA, SHINSUKE; SAITO, YUJI; NAKAJIMA, SHINJI
To: PIONEER CORPORATION; TOHOKU PIONEER CORPORATION
Reel/Frame 055580/0406 →
Continuity (5)
Continuation 16894599 · Jun 5, 2020
Continuation 16378274 · Apr 8, 2019
Continuation 15960151 · Apr 23, 2018
Continuation 15125930
Related Publication 20210399258A1 · Dec 23, 2021