IP Library Granted Patent US 10,866,478
Granted Patent B2
US 10,866,478 · App. 16/892,375 · Granted Dec 15, 2020

Display device including an oxide semiconductor which overlaps an opening

Inventors: Hitoshi Tanaka (Tokyo, JP); Kazuhide Mochizuki (Tokyo, JP)
Assignee: Japan Display Inc.
G02F1/1368G02F1/136209G02F1/136286H01L27/124H01L27/1225H01L29/7869H01L29/78633H01L29/78648G02F1/134363G02F1/136227G02F2001/13606G02F2001/13685G02F2202/10
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Quick Facts
Patent No.
US 10,866,478
App. No.
16/892,375
Granted
Dec 15, 2020
Kind
B2
Abstract

According to one embodiment, a display device includes a gate line extending in a first direction, first and second source lines crossing the gate line and arranged in the first direction, a first light-shielding layer having first and second openings, and an oxide semiconductor layer crossing the gate line, and in the display device, the first opening and the second opening are arranged in a second direction crossing the first direction between the first source line and the second source line, the gate line is located between the first opening and the second opening, and the oxide semiconductor layer has a first overlapping portion overlapping the first opening.

Claims (39)

1. A display device comprising:

a first substrate including:

a gate line;

a first light-shielding layer extending in parallel to the gate line and overlapping the gate line;

a first source line and a second source line crossing the gate line;

a switching element having an oxide semiconductor; and

a first pixel electrode located between the first source line and the second source line; and

a second substrate including a second light-shielding layer having a first opening and a second opening, wherein

the second source line is a source line next to the first source line,

the first opening and the second opening are arranged between the first source line and the second source line,

the gate line and the first-light-shielding layer overlap the second light-shielding layer between the first opening and the second opening,

the oxide semiconductor has a first portion and a second portion,

the first portion is connected to the first pixel electrode and crosses the gate line and the first light-shielding layer,

the second portion is connected to the second source line and overlaps the first opening, and

the first pixel electrode overlaps the second opening.

2. The display device of claim 1 , further comprising a liquid crystal layer between the first substrate and the second substrate.

3. The display device of claim 2 , wherein

the first substrate further includes a second pixel electrode located between the first source line and the second source line, and

the second pixel electrode overlaps the first opening.

4. The display device of claim 3 , wherein a part of the second pixel electrode overlaps the second portion of the oxide semiconductor.

5. The display device of claim 1 , wherein

the first light-shielding layer has a first width,

the gate line has a second width, and

the first width is wider than the second width.

6. The display device of claim 1 , wherein

the first light-shielding layer is connected to the gate line,

a first gate electrode of the gate line overlaps the first portion of the oxide semiconductor, and

a second gate electrode of the first light-shielding layer overlaps the first portion of the oxide semiconductor.

7. The display device of claim 1 , wherein

the first portion is connected to the second portion in an area overlapping the first opening, and

the oxide semiconductor is substantially L-shaped.

8. The display device of claim 1 , wherein

the first portion is connected to the second portion,

a first length of the first portion in an extension direction of the first portion is longer than a second length of the second portion in an extension direction of the second portion, and

the oxide semiconductor is substantially L-shaped.

9. The display device of claim 1 , wherein

the first portion is connected to the second portion,

the first portion extends in a direction crossing the gate line, and

the second portion extends in parallel to the gate line.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
Priority Claims (1)
JP 2017-008620 · Jan 20, 2017 · national
Continuity (3)
Continuation 16697921 · Nov 27, 2019
Continuation 15874199 · Jan 18, 2018
Related Publication 20200301183A1 · Sep 24, 2020
Cited By (1)
US 12,379,637