IP Library Granted Patent US 12,277,008
Granted Patent B2
US 12,277,008 · App. 17/807,377 · Granted Apr 15, 2025

Display device

Inventor: Takahiro Seki (Tokyo, JP)
Assignee: JOLED INC.
G06F1/1652G06F1/1637
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 12,277,008
App. No.
17/807,377
Granted
Apr 15, 2025
Kind
B2
Abstract

Provided is a display device including a panel member that has a display panel and a magnetic member adhering to a back surface of the display panel and that is capable of being rolled up, and a magnet that is positioned on a side, opposite to the display panel, of the magnetic member and attracts the magnetic member, in a state where the panel member is drawn out.

Claims (15)

1. A display device, comprising:

a panel member that has a display panel and a magnetic member adhering to a back surface of the display panel, wherein the panel member is capable of being rolled up;

a magnet that is positioned on a side, opposite to the display panel, of the magnetic member and attracts the magnetic member, in a state where the panel member is drawn out; and

a moving part that, in the state where the panel member is drawn out, moves the magnet in a direction toward the magnetic member and moves the magnet in a direction backward from the display panel, wherein

the movement of the magnet in the direction toward the magnetic member by the moving part brings the magnet closer to a portion of the panel member where the display panel is curved in a thickness direction of the display panel, and

the movement of the magnet in the direction backward from the display panel by the moving part flattens the display panel that is curved in the thickness direction.

2. The display device according to claim 1 , wherein the magnet is an electromagnet.

3. The display device according to claim 1 , wherein the magnetic member has a plate-like shape, is laminated on the display panel, and is higher in rigidity than the display panel.

4. The display device according to claim 1 , wherein

the magnetic member adheres to the back surface on a forward side with respect to a center of the display panel in a roll-up direction in which the panel member is rolled up, and

the magnet is positioned on a side, opposite to the display panel, of a portion of the magnetic member adhering to the back surface on the forward side, in the state where the panel member is drawn out.

5. The display device according to claim 1 , further comprising:

an attachment member that is attached to a front end of the panel member in a draw-out direction in which the panel member is drawn out; and

a link member that rotates on a side of the back surface and pushes out the attachment member in the draw-out direction,

wherein the magnet is attached to the link member.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 9, 2026
From: JDI DESIGN AND DEVELOPMENT G.K.
To: MAGNOLIA BLUE CORPORATION
Reel/Frame 073725/0952 →
CORRECTIVE ASSIGNMENT TO CORRECT THE THE APPLICATION NUMBERS RECORDED AGAINST, ONE OF WHICH WAS INCORRECTLY TRANSCRIBED; APPLICATION 18475699 WAS RECRDED INCORRECTLY AND SHOULD HAVE BEEN LISTED INSTEAD AS 18475669 PREVIOUSLY RECORDED AT REEL: 67060 FRAME: 252. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Jul 30, 2024
From: JOLED INC.
To: JDI DESIGN AND DEVELOPMENT G.K.
Reel/Frame 068377/0872 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 10, 2024
From: JOLED INC.
To: JDI DESIGN AND DEVELOPMENT G.K.
Reel/Frame 067060/0252 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 16, 2022
From: SEKI, TAKAHIRO
To: JOLED INC.
Reel/Frame 060232/0953 →
Priority Claims (1)
JP 2021-101502 · Jun 18, 2021 · national
Continuity (1)
Related Publication 20220404873A1 · Dec 22, 2022
References Cited (27)
US 10001809B2 · Seo et al. · 2018 [cited by applicant]
US 10410549B1 · Kim et al. · 2019 [cited by applicant]
US 10481640B2 · Kim et al. · 2019 [cited by applicant]
US 10602623B1 · Myers · 2020 [cited by applicant]
US 20070180745A1 · Ofuji et al. · 2007 [cited by applicant]
US 20070188986A1 · Kobayashi · 2007 [cited by applicant]
US 20170013705A1 · Jahng · 2017 [cited by examiner]
US 20170156219A1 · Heo et al. · 2017 [cited by applicant]
US 20170278436A1 · Chu · 2017 [cited by applicant]
US 20170364122A1 · Kim et al. · 2017 [cited by applicant]
US 20180375054A1 · Wang et al. · 2018 [cited by applicant]
US 20190098774A1 · Park · 2019 [cited by examiner]
US 20190166696A1 · Lin et al. · 2019 [cited by applicant]
US 20190289721A1 · Lin et al. · 2019 [cited by applicant]
US 20190371214A1 · Kim et al. · 2019 [cited by applicant]
US 20190371505A1 · Lin · 2019 [cited by examiner]
US 20200043386A1 · Kim · 2020 [cited by applicant]
US 20200143719A1 · Kim · 2020 [cited by applicant]
US 20200159288A1 · Song et al. · 2020 [cited by applicant]
US 20200266383A1 · Li · 2020 [cited by applicant]
US 20210056874A1 · Morin · 2021 [cited by examiner]
US 20240096244A1 · Togashi · 2024 [cited by examiner]
EP 3557370A1 · 2019 [cited by examiner]
JP 2005249828A · 2005 [cited by applicant]
JP 3962418B2 · 2007 [cited by applicant]
JP 2011008054A · 2011 [cited by applicant]
Office Action for Japanese patent application No. 2021-101502, issued on May 23, 2023, 2 pages of Office Action. [cited by applicant]
Cited By (1)
US 12,553,824