Granted Patent B2

US 12,482,792 · App. 17/895,075 · Granted Nov 25, 2025

Inventor: Akihiro Ogawa (Tokyo, JP)

Assignee: JAPAN DISPLAY INC.

H01L25/0753H10H20/833H10H20/857

Abstract

Claims (26)

1 . A display device comprising:

a circuit substrate; and

an LED chip,

wherein the circuit substrate comprises:

a substrate;

a light shielding layer over the substrate;

a first insulating layer over the light shielding layer;

a first wiring layer over the first insulating layer;

a second insulating layer over the first wiring layer;

an anode pad over the second insulating layer and electrically connected with the LED chip; and

a cathode pad over the second insulating layer and electrically connected with the LED chip,

wherein in a plan view, the light shielding layer is located between the anode pad and the cathode,

wherein a pixel circuit comprising the first wiring layer and electrically connected to the anode pad does not overlap the light shielding layer,

wherein the pixel circuit comprises at least a first transistor, a second transistor, a third transistor, a fourth transistor, and a fifth transistor,

wherein each of the first transistor to the fifth transistor overlaps the anode pad or the cathode pad, and

wherein:

the first transistor is a light emission control transistor,

the second transistor is a selection transistor,

the third transistor is an initialization transistor,

the fourth transistor is a reset transistor,

the fifth transistor is a drive transistor,

the first transistor and the fifth transistor are located inside an outer periphery of the cathode pad, and

the second transistor, the third transistor, and the fourth transistor are located inside an outer periphery of the anode pad.

2 . The display device according to claim 1 ,

wherein the first wiring layer comprises a gate electrode, and

the second insulating layer comprises a gate insulating layer.

Assignments (1)

Priority Claims (1)

Continuity (2)

References Cited (20)