IP Library Granted Patent US 11,681,177
Granted Patent B2
US 11,681,177 · App. 17/735,716 · Granted Jun 20, 2023

Display device

Inventors: Tomokazu Ishikawa (Tokyo, JP); Yuki Kuramoto (Tokyo, JP); Haruki Yamada (Tokyo, JP); Katsuhiro Kato (Tokyo, JP)
Assignee: Japan Display Inc.
G02F1/133512G02F1/13394G02F1/133308G02F1/133528G02F1/13338G02F1/13396G02F1/133331G02F2202/28
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Quick Facts
Patent No.
US 11,681,177
App. No.
17/735,716
Granted
Jun 20, 2023
Kind
B2
Abstract

According to one embodiment, a display device comprises a display panel and a polarizing plate. The display panel comprises a display area, a non-display area surrounding the display area, and a light-shielding layer arranged in the display area and the non-display area. The polarizing plate is provided on a surface of the display panel, and including an end portion located in the non-display area. In this display device, the light-shielding layer opposite to the end portion of the polarizing plate is at least partially removed.

Claims (68)

1. A substrate of a display device comprising:

an insulating substrate including a first long side, a second long side opposed to the first long side in a first direction, and a short side connecting the first long side and the second long side; and

a light shielding layer formed on the insulating substrate,

wherein

the light shielding layer includes a slit extending from the first long side to the second long side, and

the slit is located closer to the short side,

the light shielding layer includes a first part and a second part,

the first part surrounds a display area,

the second part is located between the first part and the short side,

the second part is separated from the first part by the slit,

the second part includes a first island portion and a second island portion,

the first island portion is located at a first corner of the first long side and the short side,

the second island portion is located at a second corner of the second long side and the short side, and

the first island portion and the second island portion are separated from each other.

2. The substrate of claim 1 , wherein

a first end of the slit overlaps the first long side, and

a second end of the slit overlaps the second long side.

3. The substrate of claim 1 , wherein

the slit includes a first slit, a second slit, and a third slit,

the third slit is located between the first slit and the second slit,

the first slit extends from the first long side to the third slit,

the second slit extends from the third slit to the second long side, and

the third slit extends parallel to the short side.

4. The substrate of claim 3 , wherein

a first connecting portion of the first slit and the third slit extends in a second direction intersecting the first direction to the short side,

an end of the first connecting portion overlaps the short side,

a second connecting portion of the second slit and the third slit extends in the second direction to the short side, and

an end of the second connecting portion overlaps the short side.

5. The substrate of claim 3 , wherein

the first slit has a first width in a second direction intersecting the first direction,

the second slit has a second width in the second direction,

the third slit has a third width in the second direction,

the third width is wider than the first width and the second width, and

the third width overlaps the short side of the insulating substrate.

6. A display device comprising:

an insulating substrate including a first long side, a second long side opposed to the first long side in a first direction, and a short side connecting the first long side and the second long side; and

a black matrix formed on the insulating substrate,

wherein

the black matrix includes a slit extending from the first long side to the second long side,

the slit is located closer to the short side,

the black matrix includes a first part and a second part,

the first part surrounds a display area,

the second part is located between the first part and the short side,

the second part is separated from the first part by the slit,

the second part includes a first island portion and a second island portion,

the first island portion is located at a first corner of the first long side and the short side,

the second island portion is located at a second corner of the second long side and the short side, and

the first island portion and the second island portion are separated from each other.

7. The display device of claim 6 , wherein

a first end of the slit overlaps the first long side, and

a second end of the slit overlaps the second long side.

8. The display device of claim 6 , wherein

the slit includes a first slit, a second slit, and a third slit,

the third slit is located between the first slit and the second slit,

the first slit extends from the first long side to the third slit,

the second slit extends from the third slit to the second long side, and

the third slit extends parallel to the short side.

9. The display device of claim 8 , wherein

a first connecting portion of the first slit and the third slit extends in a second direction intersecting the first direction to the short side,

an end of the first connecting portion overlaps the short side,

a second connecting portion of the second slit and the third slit extends in the second direction to the short side, and

an end of the second connecting portion overlaps the short side.

10. The display device of claim 8 , wherein

the first slit has a first width in a second direction intersecting the first direction,

the second slit has a second width in the second direction,

the third slit has a third width in the second direction,

the third width is wider than the first width and the second width, and

the third width overlaps the short side of the insulating substrate.

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 2015-084208 · Apr 16, 2015 · national
Continuity (5)
Continuation 17135205 · Dec 28, 2020
Continuation 16875144 · May 15, 2020
Continuation 16159120 · Oct 12, 2018
Continuation 15089656 · Apr 4, 2016
Related Publication 20220260874A1 · Aug 18, 2022