Polymer resin, window module including the same, and display apparatus including the same

Patent metadata

Field	Value
Publication number	US-11426985-B2
Application number	US-202016875868-A
Country	US
Kind code	B2
Filing date	May 15, 2020
Priority date	May 16, 2019
Publication date	Aug 30, 2022
Grant date	Aug 30, 2022

Abstract

A window module including a window, a first print layer, an ink layer, and a protective layer covering the ink layer. The protective layer includes a polymer resin polymerized from monomers including a first monomer which is an acrylic monomer substituted with a hydroxy group, a second monomer having an epoxy group, and at least one of a third monomer having a substituted or unsubstituted phenyl group or a fourth monomer which is an acrylic monomer having a substituted or unsubstituted bicyclic alkyl group, and thus, has excellent durability, chemical resistance, and abrasion resistance.

First claim

What is claimed is:

1. A window module comprising:
a window;
a first print layer disposed on the window and having an opening to the window;
an ink layer disposed in the opening and including a base resin and at least one of a pigment or a dye dispersed in the base resin; and
a protective layer covering the ink layer, wherein the protective layer includes:
a polymer resin polymerized from monomers comprising a first monomer which is an acrylic monomer substituted with a hydroxy group,

a second monomer having an epoxy group, and
at least one of a third monomer having a substituted or unsubstituted phenyl group or a fourth monomer which is an acrylic monomer having a substituted or unsubstituted bicyclic alkyl group,
wherein the ink layer is disposed between the window and the protective layer.

2. The window module of claim 1 , wherein the first monomer to the fourth monomer are respectively represented by Formula 1 to Formula 4 below:

in Formula 1 to Formula 4,
R 1 , R 5 , and R 8 are each independently a hydrogen atom or a methyl group,
each R 3 , R 4 , and R 7 are independently a hydrogen atom or a methyl group,
R 2 is a hydroxy group or a hydroxymethyl group, and
each R 6 is independently a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms.

3. The window module of claim 1 , wherein the second monomer is represented by Formula 2-1 below:

in Formula 2-1,
R 9 is a hydrogen atom or a methyl group, and
R 10 is a —CH 2 — group or a —OCH 2 — group.

4. The window module of claim 1 , wherein the polymer resin comprises both the third monomer and the fourth monomer.

5. The window module of claim 1 , wherein
the first monomer comprises at least one of hydroxyethyl acrylate, hydroxyethyl methacrylate, or hydroxypropyl acrylate,
the second monomer comprises at least one of a bisphenol-A type epoxy monomer, glycidyl methacrylate, glycidyl acrylate, or allyl glycidyl ether,
the third monomer comprises at least one of isopropenyl benzene or t-butyl styrene, and
the fourth monomer comprises at least one of isobornyl acrylate or isobornyl methacrylate.

6. The window module of claim 1 , wherein the polymer resin is polymerized by in the presence of at least one cross-linking agent.

7. The window module of claim 6 , wherein the amount of the cross-linking agent based on the total weight of the first monomer to the fourth monomer is 20 weight percent to 25 weight percent.

8. The window module of claim 6 , wherein the at least one cross-linking agent comprises an isocyanate group or an amine group through which crosslinking occurs.

9. The window module of claim 1 , wherein the protective layer comprises, based on the total moles of the first monomer to the fourth monomer,
the first monomer in a range of 10 mole percent to 30 mole percent,
the second monomer in a range of 10 mole percent to 30 mole percent, and
at least one monomer of the third monomer or the fourth monomer in a range of 50 mole percent to 80 mole percent.

10. The window module of claim 1 , wherein the polymer resin further comprises inorganic particles.

11. The window module of claim 10 , wherein the inorganic particles comprise particles of barium sulfate.

12. The window module of claim 1 , wherein the visible light transmittance of the protective layer at a wavelength of 540 nm is 99% or greater.

13. The window module of claim 1 , wherein the ink layer comprises a first portion that fills the opening and a second portion extended from the first portion and disposed on the first print layer.

14. The window module of claim 13 , further comprising a second print layer disposed on the first print layer,
wherein at least a portion of the second portion of the ink layer is disposed between the first print layer and the second print layer.

15. The window module of claim 1 , wherein the protective layer has a visible light transmittance of 99% or greater.

16. The window module of claim 1 , wherein the protective layer and the ink layer together define a semi-transmissive region that selectively transmits infrared light.

Assignees

• Samsung Display Co Ltd
• Dong Yang Ink Co Ltd

Inventors

• Choi Ji Won
• Moon Sangeun
• Kim Dongho
• Yoo Sookkyung

Classifications

• C08F283/105

  on to unsaturated polymers containing more than one epoxy radical per molecule · CPC title

• B32B2457/204

  Plasma displays · CPC title

• C08K3/30 Primary

  Sulfur-, selenium- or tellurium-containing compounds · CPC title

• B32B2255/10

  on synthetic resin layer or on natural or synthetic rubber layer · CPC title

• C08K5/29

  Compounds containing {one or more} carbon-to-nitrogen double bonds · CPC title