IP Library Granted Patent US 10,989,940
Granted Patent B2
US 10,989,940 · App. 16/447,346 · Granted Apr 27, 2021

Display device

Inventor: Ippei Shibata (Kumamoto, JP)
Assignee: Mitsubishi Electric Corporation
G02F1/1333G02B1/14G02F2001/133388G02F2201/50G02F2201/56G02F2202/28
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Quick Facts
Patent No.
US 10,989,940
App. No.
16/447,346
Granted
Apr 27, 2021
Kind
B2
Abstract

Provided is a display device which includes an electrooptical panel and a protection member including a print part in a peripheral region and disposed to face the electrooptical panel to protect the electrooptical panel. The protection member includes a first reference mark in the peripheral region. The electrooptical panel includes a second reference mark in a position corresponding to the first reference mark and is held to have an overlap with the protection member. The print part includes at least the first print layer and a second print layer disposed in a position facing the first print layer. The first reference mark is made up of a hole having a predetermined shape formed in the second print layer.

Claims (25)

1. A display device, comprising:

an electrooptical panel; and

a protection member including a print part in a peripheral region, and disposed to face the electrooptical panel to protect the electrooptical panel, wherein

the protection member includes a first reference mark in the peripheral region,

the electrooptical panel includes a second reference mark in a position corresponding to the first reference mark and is held to have an overlap with the protection member,

the print part includes at least:

a first print layer; and

a second print layer disposed in a position facing the first print layer, and

the first reference mark is made up of a hole having a predetermined shape formed in the second print layer.

2. The display device according to claim 1 , wherein

the print part has a double-layer structure made up of the first print layer and the second print layer, and

each of the first and second print layers is made up of a black print layer.

3. The display device according to claim 1 , wherein

the print part of the protection member further includes a third print layer disposed between the first print layer and the second print layer, and

the third print layer has a color different from the first and second print layers.

4. The display device according to claim 3 , wherein

the third print layer is formed by a colored printing.

5. The display device according to claim 1 , wherein

in the second print layer, the hole is formed with a predetermined distance from an end portion of the second print layer to an end portion of a region where the hole is formed and a predetermined distance from another end portion of the region where the hole is formed to an end portion of the protection member, thus a predetermined area is ensured in the first reference mark.

6. The display device according to claim 1 , wherein

an outer shape of the first reference mark is selected from a cross shape, a circle shape, a triangle shape, and a square shape.

7. The display device according to claim 1 , wherein

the electrooptical panel is a display panel or a touch panel.

8. The display device according to claim 1 , wherein

the protection member is formed of glass or a resin.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 17, 2021
From: MITSUBISHI ELECTRIC CORPORATION
To: TRIVALE TECHNOLOGIES
Reel/Frame 058171/0257 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 20, 2019
From: SHIBATA, IPPEI
To: MITSUBISHI ELECTRIC CORPORATION
Reel/Frame 049540/0727 →