IP Library › Granted Patent US 11,393,995
Granted Patent B2
US 11,393,995 · App. 17/319,218 · Granted Jul 19, 2022

Light-emitting device having light blocking overlapping connection portion or spacer

Inventors: Masaaki Hiroki (Kanagawa, JP); Akio Endo (Kanagawa, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
H01L51/0097G09F9/301G09G3/3266H01L51/525H01L2251/5338Y02E10/549
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Quick Facts
Patent No.
US 11,393,995
App. No.
17/319,218
Granted
Jul 19, 2022
Kind
B2
Abstract

A highly portable and highly browsable light-emitting device is provided. A light-emitting device that is less likely to be broken is provided. The light-emitting device has a strip-like region having high flexibility and a strip-like region having low flexibility that are arranged alternately. In the region having high flexibility, a light-emitting panel and a plurality of spacers overlap with each other. In the region having low flexibility, the light-emitting panel and a support overlap with each other. When the region having high flexibility is bent, the angle between normals of facing planes of the two adjacent spacers changes according to the bending of the light-emitting panel; thus, a neutral plane can be formed in the light-emitting panel or in the vicinity of the light-emitting panel.

Claims (19)

1. A light-emitting device comprising:

a light-emitting panel including a light-emitting element,

wherein the light-emitting device is configured to be folded in two parts such that a light-emitting surface of the light-emitting panel faces inward,

wherein the light-emitting device includes a first portion, a second portion and a connection portion between the first portion and the second portion,

wherein the connection portion includes a spacer controlling a folded state of the light-emitting device, and

wherein the light-emitting device includes a light-blocking layer provided to overlap the connection portion or the spacer.

2. The light-emitting device according to claim 1 ,

wherein the spacer includes a plurality of spacers, and

wherein the folded state of the light-emitting device is controlled by contacting two adjacent spacers of the plurality of spacers.

3. A light-emitting device comprising:

a light-emitting panel including a light-emitting element,

wherein the light-emitting device is configured to be folded in two parts such that a light-emitting surface of the light-emitting panel faces inward,

wherein the light-emitting device includes a first portion, a second portion and a connection portion between the first portion and the second portion,

wherein the connection portion includes a spacer controlling a folded state of the light-emitting device,

wherein the light-emitting device includes a light-blocking layer provided to overlap the connection portion or the spacer, and

wherein the connection portion and the spacer are not seen from the light-emitting surface of the light-emitting panel by the light-blocking layer and the light-emitting panel.

4. The light-emitting device according to claim 3 ,

wherein the spacer includes a plurality of spacers, and

wherein the folded state of the light-emitting device is controlled by contacting two adjacent spacers of the plurality of spacers.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 13, 2021
From: HIROKI, MASAAKI; ENDO, AKIO
To: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Reel/Frame 056228/0142 →
Priority Claims (1)
JP 2014-219135 · Oct 28, 2014 · national
Continuity (5)
Continuation 17095943 · Nov 12, 2020
Continuation 16248890 · Jan 16, 2019
Continuation 15807670 · Nov 9, 2017
Continuation 14921059 · Oct 23, 2015
Related Publication 20210273184A1 · Sep 2, 2021
Cited By (1)
US 12,271,241