# US 2021/0280807 A1 · Light-emitting device and electronic device

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- Number: US 2021/0280807 A1
- Document ID: US20210280807A1
- Status: Published application
- Kind: A1
- Application number: 17/319,260
- Filed: 2021-05-13
- Published: 2021-09-09
- Earliest claimed: 2014-10-28
- Assignees: Semiconductor Energy Laboratory Co., Ltd.
- Applicants: Semiconductor Energy Laboratory Co., Ltd.
- Inventors: Masaaki HIROKI; Akio ENDO
- Web page: https://patentgrep.com/patent/US20210280807A1

## CPC

- G09F 9/301: {flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED}
- G09G 3/3266: Details of drivers for scan electrodes
- H10K 50/8428: {Vertical spacers, e.g. arranged between the sealing arrangement and the OLED}
- H10K 59/12: Active-matrix OLED [AMOLED] displays
- H10K 59/8723: {Vertical spacers, e.g. arranged between the sealing arrangement and the OLED}
- H10K 77/111: {Flexible substrates}
- H10K 59/873: {Encapsulations}
- H10K 2102/311: {Flexible OLED}
- Y02E 10/549: Organic PV cells
- Y02P 70/50: Manufacturing or production processes characterised by the final manufactured product
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02P: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS

## 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

### Claim 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 panel includes a light-emitting region and a non-light-emitting region surrounding the light-emitting region,
wherein the non-light-emitting region includes a driver circuit, and
wherein the light-emitting device includes a light-blocking layer provided to overlap the non-light-emitting region.

### Claim 2

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 panel includes a light-emitting region and a non-light-emitting region surrounding the light-emitting region,
wherein the non-light-emitting region includes a driver circuit, and
wherein the light-emitting device includes a light-blocking layer provided to overlap the non-light-emitting region which is located in a region folded in the two parts.

### Claim 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 panel includes a light-emitting region and a non-light-emitting region surrounding the light-emitting region,
wherein the non-light-emitting region includes a driver circuit,
wherein the light-emitting device includes a light-blocking layer provided to overlap the non-light-emitting region, and
wherein the light-blocking layer includes an opening in a portion overlapping with the light-emitting region.