Display device

Patent metadata

Field	Value
Publication number	US-12504780-B2
Application number	US-202318141108-A
Country	US
Kind code	B2
Filing date	Apr 28, 2023
Priority date	Sep 19, 2022
Publication date	Dec 23, 2025
Grant date	Dec 23, 2025

Abstract

A display device includes: a display panel having a non-folding area and a foldable area adjacent to the non-folding area; and a protective film disposed under the display panel, including a polyhedral oligomeric silsesquioxane (POSS) compound, and having a break elongation of about 20% or more.

First claim

What is claimed is:

1 . A display device comprising:
a display panel having a non-folding area and a foldable area adjacent to the non-folding area; and a protective film disposed under the display panel, including a polyhedral oligomeric silsesquioxane (POSS) compound, and having a break elongation of about 20% or more.

2 . The display device of claim 1 , wherein the protective film has a Young's modulus of about 1 gigapascal (Gpa) or more.

3 . The display device of claim 1 , wherein the protective film has a thickness of about 10 micrometers (μm) to about 100 μm.

4 . The display device of claim 1 , the POSS compound includes at least one selected from a group consisting of compounds represented by Chemical Formula 1 to Chemical Formula 9:

wherein in Chemical Formula 1 to Chemical Formula 9,
A is

B is

D is

E is

X is each independently R or [(SiO 3/2 R) 4+2n O], Y is O, NR or [(SiO 3/2 R) 4+2n O], R and R* are each independently hydrogen, heavy hydrogen, a halogen, an amine group, an epoxy group, a cyclohexyl epoxy group, an acrylic group, a methacrylic group, a thiol group, an isocyanate group, a nitrile group, a nitro group, phenyl group, a C1 to C12 alkyl group, a C2 to C12 alkenyl group, a C1 to C40 alkoxy group, a C3 to C12 cycloalkyl group, a C3-12 heterocycloalkyl group, a C6 to C12 aryl group, a C3 to C12 heteroaryl group, a C3 to C12 aralkyl group, a C3 to C12 aryloxy group, or a C3 to C12 aryl thiol group, wherein the phenyl group includes substituted or unsubstituted hydrogen, heavy hydrogen, a halogen, an amine group, an epoxy group, a cyclohexyl epoxy group, an acryl group, a methacryl, a thiol group, an isocyanate group, a nitrile group, or a nitro group, and the R and R* are different from each other,
a, a1, a2, d, d1, and d2 are each independently an integer between 1 and 100,000,
b is each independently an integer between 1 and 500, and
e is each independently an integer 1 or 2.

5 . The display device of claim 1 , wherein the protective film directly contacts the display panel.

6 . The display device of claim 1 , wherein the protective film includes:
a flat portion overlapping the non-folding area; and a plurality of pattern portions overlapping the foldable area and spaced apart from each other.

7 . The display device of claim 1 , wherein the protective film overlaps the non-folding area and does not overlap the foldable area.

8 . The display device of claim 1 , wherein the protective film is formed through an inkjet process.

9 . The display device of claim 1 , further comprising:
a support member disposed under the protective film and including a stretchable portion in which a plurality of openings are defined.

10 . The display device of claim 9 , wherein each of the plurality of openings has a shape extending in a first direction, and the plurality of openings are arranged in the first direction and a second direction perpendicular to the first direction.

Assignees

• Samsung Display Co Ltd

Inventors

• Lim Ho
• Kim Taemin
• Park Jiyun
• Shin Donggeun
• Yang Gihoon
• Lee Seulgee
• Lee Seunghee

Classifications

• H10K85/40

  Organosilicon compounds, e.g. TIPS pentacene · CPC title

• H10K85/656 Primary

  comprising two or more different heteroatoms per ring (H10K85/652 takes precedence) · CPC title

• H10K50/401

  Organic light-emitting molecular electronic devices · CPC title

• G06F1/1656

  Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories (mounting of accessories to a computer display G06F1/1607; display hoods G06F1/1603; cooling arrangements for portable computers G06F1/203) · CPC title

• H10K2102/311

  Flexible OLED · CPC title