IP Library › Granted Patent US 12,136,693
Granted Patent B2
US 12,136,693 · App. 18/363,745 · Granted Nov 5, 2024

Display device

Inventor: Akihiro Ogawa (Tokyo, JP)
Assignee: JAPAN DISPLAY INC.
H01L33/62H01L25/0753H01L27/1214
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Quick Facts
Patent No.
US 12,136,693
App. No.
18/363,745
Granted
Nov 5, 2024
Kind
B2
Abstract

A display device includes a circuit substrate comprising a first electrode pad and an LED chip comprising a first electrode bump that is electrically connected to the first electrode pad, and at least emitting light in a direction of the circuit substrate. The first electrode pad comprises a first light transmission region that transmits light emitted from the LED chip.

Claims (25)

1. A display device comprising:

a circuit substrate comprising a first electrode pad; and

an LED chip comprising a first electrode bump, the LED chip emitting light in a direction of the circuit substrate,

wherein the first electrode pad comprises a metal layer,

the first electrode pad has a light shielding region provided with the metal layer and a light transmission region that transmits light emitted from the LED chip,

the first electrode pad and the first electrode bump are electrically connected to each other through a conductive material, and

the conductive material is one of a conductive adhesive and an isotropic conductive film.

2. The display device according to claim 1 , wherein the metal layer has an opening.

3. A display device comprising:

a circuit substrate comprising a first electrode pad; and

an LED chip comprising a first electrode bump, the LED chip emitting light in a direction of the circuit substrate,

wherein the first electrode pad comprises a metal layer,

the first electrode pad has a light shielding region provided with the metal layer and a light transmission region that transmits light emitted from the LED chip,

the first electrode pad and the first electrode bump are electrically connected to each other through a conductive material,

the circuit substrate further comprises a second electrode pad,

the LED chip further comprises a second bump that is electrically the second electrode pad, and

the second electrode pad comprises a second light transmission region that transmits light emitted from the LED chip.

4. A display device comprising:

a circuit substrate comprising a first electrode pad; and

an LED chip comprising a first electrode bump, the LED chip emitting light in a direction of the circuit substrate,

wherein the first electrode pad comprises a metal layer,

the first electrode pad has a light shielding region provided with the metal layer and a light transmission region that transmits light emitted from the LED chip,

the first electrode pad and the first electrode bump are electrically connected to each other through a conductive material,

the first electrode pad further comprises a second electrode layer over the metal layer, and

the second electrode layer is made from a transparent conductive material.

Priority Claims (1)
JP 2020-029415 · Feb 25, 2020 · national
Continuity (2)
Continuation 17165974 · Feb 3, 2021
Related Publication 20230378416A1 · Nov 23, 2023