IP Library › Granted Patent US 10,670,912
Granted Patent B2
US 10,670,912 · App. 16/436,298 · Granted Jun 2, 2020

Liquid crystal display device

Inventors: Yoichi Yasui (Osaka, JP); Takenori Yaguchi (Hyogo, JP); Takaaki Kitada (Chiba, JP); Kazuhiko Tsuda (Hyogo, JP); Takashi Kato (Hyogo, JP); Hidenori Kikuchi (Hyogo, JP); Naoki Terasawa (Hyogo, JP); Katsuji Tanaka (Hyogo, JP)
Assignee: Panasonic Liquid Crystal Display Co., Ltd.
G02F1/133528G02F1/1347H01L27/1218G02F1/133512G02F1/136286G02F2001/133388G02F2201/121G02F2201/123H01L27/124
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Quick Facts
Patent No.
US 10,670,912
App. No.
16/436,298
Granted
Jun 2, 2020
Kind
B2
Abstract

A liquid crystal display device includes a first glass substrate, a second glass substrate, a first liquid crystal layer disposed between the first glass substrate and the second glass substrate, a third glass substrate, a fourth glass substrate, a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate, a first polarizing plate formed on the first glass substrate, a second polarizing plate formed on the third glass substrate, and a bonding layer disposed between the first glass substrate and the third glass substrate. In planar view, the bonding layer is disposed outside the first polarizing plate and the second polarizing plate, a surface on the bonding layer bonds to the first glass substrate, and a surface on the bonding layer bonds to the third glass substrate.

Claims (30)

1. A display device, comprising:

a first display panel;

a second display panel disposed opposite to the first display panel;

a first polarizing plate disposed between the first display panel and the second display panel; and

a bonding layer disposed between the first display panel and the second display panel to bond the first display panel and the second display panel,

wherein the bonding layer is disposed outside the first polarizing plate in planar view.

2. The display device according to claim 1 , wherein

the first display panel includes:

a first glass substrate;

a second glass substrate disposed opposite to the first glass substrate, and

a first liquid crystal layer disposed between the first glass substrate and the second glass substrate,

the second display panel includes:

a third glass substrate;

a fourth glass substrate disposed opposite to the third glass substrate, and

a second liquid crystal layer disposed between the third glass substrate and the fourth glass substrate,

the first glass substrate, the second glass substrate, the third glass substrate and the fourth glass substrate are stacked in this order.

3. The display device according to claim 2 , wherein

an area of the first polarizing plate is smaller than an area of the second glass substrate, and

the area of the first polarizing plate is smaller than an area of the third glass substrate.

4. The display device according to claim 3 , wherein

the area surrounded by the bonding layer is larger than the area of the first polarizing plate.

5. The display device according to claim 4 , further comprising:

a second polarizing plate disposed between the first display panel and the second display panel.

6. The display device according to claim 5 , wherein

an area of the second polarizing plate is smaller than an area of the second glass substrate, and

the area of the second polarizing plate is smaller than an area of the third glass substrate.

7. The display device according to claim 6 , wherein

the area surrounded by the bonding layer is larger than the area of the second polarizing plate.

8. The display device according to claim 2 , wherein

the bonding layer does not overlap with the polarizing plate in planar view.

Assignments (2)
NUNC PRO TUNC ASSIGNMENT Recorded Jul 12, 2023
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Reel/Frame 064258/0892 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 5, 2020
From: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
To: PASONA KNOWLEDGE PARTNER INC.
Reel/Frame 052849/0777 →
Priority Claims (1)
JP 2017-068347 · Mar 30, 2017 · national
Continuity (2)
Continuation 15940475 · Mar 29, 2018
Related Publication 20190293999A1 · Sep 26, 2019