Display device having crack prevention portions on a side portion and method of fabricating the same

Patent metadata

Field	Value
Publication number	US-12433100-B2
Application number	US-202318383265-A
Country	US
Kind code	B2
Filing date	Oct 24, 2023
Priority date	Jun 22, 2020
Publication date	Sep 30, 2025
Grant date	Sep 30, 2025

Abstract

A display device includes a display panel having a front portion and at least one side portion that is bent from at least one side of the front portion. The front portion includes first pixels. The side portion includes second pixels and crack prevention portions that are disposed adjacent to the second pixels. A number of the first pixels per unit area disposed in the front portion is greater than a number of the second pixels per unit area disposed in the at least one side portion.

First claim

What is claimed is:

1. A display device comprising:
a display panel comprising a substrate, the display panel including a front portion and at least one side portion that is bent from at least one side of the front portion,
wherein
the front portion includes first pixels,
the at least one side portion includes second pixels and crack prevention portions that are disposed adjacent to the second pixels in a plan view in a first direction and a second direction crossing the first direction and expose an upper surface of the substrate, each of the crack prevention portions comprising a hole extending through a plurality of inorganic insulating films; and
a size of each of the first pixels is greater than a size of each of the second pixels.

2. The display device of claim 1 , wherein a number of the first pixels per unit area disposed in the front portion is the same as a number of the second pixels per unit area disposed in the at least one side portion.

3. The display device of claim 1 , wherein:
the first pixels and the second pixels each include first, second, third, and fourth emission areas; and
shapes of the first, second, third, and fourth emission areas of each of the first pixels are different from shapes of the first, second, third, and fourth emission areas of each of the second pixels.

4. The display device of claim 1 , wherein:
the first pixels and the second pixels each include first, second, third, and fourth emission areas; and
sizes of the first, second, third, and fourth emission areas of each of the first pixels are different from sizes of the first, second, third, and fourth emission areas of each of the second pixels.

5. An electronic device comprising:
a display panel for displaying an image, and
wherein the display panel comprises a substrate, a front portion, and at least one side portion that is bent from at least one side of the front portion, and
wherein
the front portion includes first pixels,
the at least one side portion includes second pixels and crack prevention portions that are disposed adjacent to the second pixels in a plan view in a first direction and a second direction crossing the first direction and expose an upper surface of the substrate, each of the crack prevention portions comprising a hole extending through a plurality of inorganic insulating films; and
a size of each of the first pixels is greater than a size of each of the second pixels.

6. The electronic device of claim 5 , wherein the display panel is applied to a display unit of a mobile phone, a smartphone, a tablet personal computer (PC), a mobile communication terminal, an electronic notepad, an electronic book (e-book), a portable multimedia player (PMP), a navigation device, an ultra-mobile PC (UMPC), a television (TV), a notebook computer, a monitor, a billboard, an Internet-of-Things (IoT) device, a smartwatch, a watchphone, a glasses display, a head-mounted display (HMD), or a dashboard, a center fascia, a center information display (CID), or a room mirror display of a vehicle.

Assignees

• Samsung Display Co Ltd

Inventors

• Choi Jun Won
• Kim Jae Won
• Min Jun Young

Classifications

• H10K50/844

  Encapsulations · CPC title

• H10K59/8731

  multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers · CPC title

• H10K71/00

  Manufacture or treatment specially adapted for the organic devices covered by this subclass · CPC title

• H10K59/131

  Interconnections, e.g. wiring lines or terminals · CPC title

• H10K59/1213

  the pixel elements being TFTs · CPC title