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

Patent metadata

Field	Value
Publication number	US-11897235-B2
Application number	US-202217885873-A
Country	US
Kind code	B2
Filing date	Aug 11, 2022
Priority date	May 16, 2019
Publication date	Feb 13, 2024
Grant date	Feb 13, 2024

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 display apparatus comprising:
a window module having thereon a bezel region including a semi-transmissive region through which infrared light is transmitted and a non-transmissive region surrounding the semi-transmissive region, and a transmissive region adjacent to the bezel region;
an infrared light detection sensor overlapping the semi-transmissive region; and
a display panel overlapping the transmissive region and a portion of the bezel region, wherein
the window panel includes:
a window;
a first print layer disposed on the non-transmissive region;
an ink layer disposed in the semi-transmissive region and including a base resin and at least one of a pigment or a dye dispersed in the base resin; and
a protection layer covering the ink layer, wherein
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.

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

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 display apparatus of claim 1 , further comprising a second print layer disposed on the first print layer,
wherein the ink layer includes a first portion disposed in the semi-transmissive region and a second portion extended from the first portion and disposed in the non-transmissive region.

4. The display apparatus of claim 1 , wherein the polymer resin is polymerized in the presence of at least one cross-linking agent, the crosslinking agent comprising an isocyanate group or an amine group through which crosslinking occurs.

5. A polymer resin polymerized from monomers and a cross-linking agent,
wherein the monomers include a first monomer represented by Formula 1 below, a second monomer represented by Formula 2 below, a third monomer represented by Formula 3 below, and a fourth monomer represented by Formula 4 below, and
wherein the cross-linking agent includes at least one of an isocyanate-based cross-linking agent or an amine-based cross-linking agent:

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,
each R 6 is independently a hydrogen atom, or a substituted or unsubstituted alkyl group having 1 to 5 carbon atoms.

6. The polymer resin of claim 5 , wherein
the first monomer comprises at least one of hydroxyethyl acrylate, hydroxyethyl methacrylate, or hydroxypropyl acrylate,
the second monomer is a bisphenol-A type epoxy monomer,
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.

7. The display apparatus of claim 1 , wherein the protective layer has a visible light transmittance of 99% or greater.

8. The display apparatus of claim 1 , wherein the ink layer is disposed between the window and the protective layer, and the protective layer and the ink layer together define a semi-transmissive region that selectively transmits infrared light.

Assignees

• Samsung Display Co Ltd

Inventors

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

Classifications

• G02B5/223

  containing organic substances, e.g. dyes, inks or pigments · CPC title

• C08F220/28

  containing no aromatic rings in the alcohol moiety · CPC title

• C08F220/32

  containing epoxy radicals · CPC title

• C09D201/02

  characterised by the presence of specified groups {, e.g. terminal or pendant functional groups} · CPC title

• C09D133/00

  Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers · CPC title