IP Library Granted Patent US 9,985,228
Granted Patent B2
US 9,985,228 · App. 15/421,820 · Granted May 29, 2018

Display device and method for manufacturing the same

Inventors: Kazuto Tsuruoka (Minato-ku, JP); Naohisa Andou (Minato-ku, JP); Takashi Saeki (Minato-ku, JP); Megumi Senda (Minato-ku, JP); Yusuke Goto (Minato-ku, JP)
Assignee: Japan Display Inc.
H01L51/0097H01L51/5237H01L2251/5338Y02E10/549
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Quick Facts
Patent No.
US 9,985,228
App. No.
15/421,820
Granted
May 29, 2018
Kind
B2
Abstract

A flexible display is bent in an intermediate region such that a first region and a second region overlap each other. A spacer is disposed inside a bend of the flexible display. The spacer includes a front-side region overlapping the first region, a back-side region overlapping the second region, and a guide region overlapping the intermediate region and regulating the bend. The spacer includes, in the front-side region, a first step and a first bottom surface recessed below the guide region. The spacer includes, in the back-side region, a second step and a second bottom surface recessed below the guide region. An interval between a second reinforcing film and a second raised surface located at the second step is larger than an interval between a first reinforcing film and a first raised surface located at the first step.

Claims (18)

1. A display device comprising:

a flexible display including a first region and a second region, the flexible display including an intermediate region in the second region, the flexible display being bent in the intermediate region such that the first region and the second region overlap each other, the flexible display being provided with a light-emitting element layer in the first region;

a spacer disposed inside a bend of the flexible display, the spacer including a front-side region overlapping the first region, a back-side region overlapping the second region, and a guide region overlapping the intermediate region and regulating the bend, the spacer including, in the front-side region, a first step and a first bottom surface recessed below the guide region, the spacer including, in the back-side region, a second step and a second bottom surface recessed below the guide region;

a first reinforcing film disposed on the first bottom surface so as not to go over the first step and attached to the flexible display;

a first adhesive attaching the first reinforcing film to the spacer;

a second reinforcing film disposed on the second bottom surface so as not to go over the second step and attached to the flexible display; and

a second adhesive attaching the second reinforcing film to the spacer, wherein

an interval between the second reinforcing film and a second raised surface located at the second step is larger than an interval between the first reinforcing film and a first raised surface located at the first step, and

the first reinforcing film is in contact with the first raised surface located at the first step.

2. The display device according to claim 1 , wherein

the second step is located at a position closer to the guide region than the first step.

3. The display device according to claim 1 , further comprising, in the first region of the flexible display, a front reinforcing film attached so as to overlap a region from the first bottom surface over the first step on the side opposite to the first reinforcing film.

4. The display device according to claim 1 , wherein

the first adhesive is provided so as to reach the first raised surface located at the first step, and

the second adhesive is provided so as to reach the second raised surface located at the second step.

5. The display device according to claim 1 , further comprising a wiring board mounted to a leading edge portion of the second region and projecting from the flexible display, wherein

the spacer has a shape in which the second bottom surface projects from the flexible display, and

the second adhesive is provided so as to attach the wiring board and the second bottom surface to each other.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 22, 2025
From: JAPAN DISPLAY INC.
To: MAGNOLIA WHITE CORPORATION
Reel/Frame 072130/0313 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 1, 2017
From: TSURUOKA, KAZUTO; ANDOU, NAOHISA; SAEKI, TAKASHI; SENDA, MEGUMI; GOTO, YUSUKE
To: JAPAN DISPLAY INC.
Reel/Frame 041146/0324 →
Priority Claims (1)
JP 2016-023865 · Feb 10, 2016 · national
Continuity (1)
Related Publication 20170229666A1 · Aug 10, 2017