# US 12,216,350 B2 · Anti-glare and anti-reflection film, polarizer and display panel > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,216,350 B2 - Document ID: US12216350B2 - Status: Granted - Kind: B2 - Application number: 17/770,649 - Filed: 2022-03-02 - Published: 2024-05-16 - Granted: 2025-02-04 - Earliest claimed: 2022-02-24 - Assignees: Tcl China Star Optoelectronics Technology Co., Ltd. - Applicants: Tcl China Star Optoelectronics Technology Co., Ltd. - Inventors: Weiheng Yang; Hong Yang; Zhichao Liao - Web page: https://patentgrep.com/patent/US12216350B2 ## CPC - G02F 1/133502: {Antiglare, refractive index matching layers} - G02B 1/10: Optical coatings produced by application to, or surface treatment of, optical elements (G02B1/08 takes precedence) - G02B 1/11: Anti-reflection coatings - G02B 1/111: using layers comprising organic materials - G02B 1/118: having sub-optical wavelength surface structures designed to provide an enhanced transmittance, e.g. moth-eye structures - G02B 1/14: Protective coatings, e.g. hard coatings - G02B 5/0226: {having particles on the surface} - G02B 5/0242: {by means of dispersed particles} - G02B 5/30: Polarising elements (light-modulating devices with active elements G02F1/00) - G02B 5/3041: {comprising multiple thin layers, e.g. multilayer stacks} - G02F 1/133504: {Diffusing, scattering, diffracting elements (associated to illuminating devices G02F1/133606)} - G02F 1/133528: {Polarisers} - G02F 1/133553: {Reflecting elements (associated to illuminating devices G02F1/133605)} - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS ## Abstract The present application provides an anti-glare and anti-reflection film, a polarizer and a display panel. The anti-glare and anti-reflection film includes: a hardened layer; and first extinction particles dispersed in the hardened layer. The first extinction particles include a particle core, a first coating covering the particle core, and a second coating covering the first coating, and the first coating has a greater refractive index than that of the second coating. The anti-glare and anti-reflection film, polarizer and display panel provided by the present application can improve haze of a product itself and reduce reflectivity of a product itself, so as to improve quality of display screen. ## Claims ### Claim 1 An anti-glare and anti-reflection film, comprising: a hardened layer; first extinction particles dispersed in the hardened layer; and second extinction particles dispersed in the hardened layer; wherein the first extinction particles comprise a particle core, a first coating covering the particle core, and a second coating covering the first coating, and the first coating has a refractive index different from that of the second coating; and wherein a mass percentage of the first extinction particles is greater than 80% of a total mass of the first extinction particles and the second extinction particles. ### Claim 2 (depends on 1) The anti-glare and anti-reflection film according to claim 1, wherein at least a part of the first extinction particles is exposed from a surface of the hardened layer to change the surface of the hardened layer into a roughened surface. ### Claim 3 (depends on 2) The anti-glare and anti-reflection film according to claim 2, wherein the first extinction particles exposed from the hardened layer are uniformly distributed and uniform in size. ### Claim 4 (depends on 2) The anti-glare and anti-reflection film according to claim 2, wherein a height of a portion of the first extinction particles exposed from the hardened layer protruding from a surface of the hardened layer is defined as H, and H is within a following range: ⅔R≤H<2R, wherein R is a radius of the first extinction particles. ### Claim 5 (depends on 2) The anti-glare and anti-reflection film according to claim 2, wherein another part of the first extinction particles is accumulated in the hardened layer. ### Claim 6 (depends on 1) The anti-glare and anti-reflection film according to claim 1, wherein a diameter of the particle core is defined as d1, a thickness of the first coating is defined as d2, and a thickness of the second coating is defined as d3; wherein 2 μm≤d1≤3 μm, 0.5 μm≤d2≤1.5 μm, and 100 nm≤d3≤200 nm. ### Claim 7 (depends on 1) The anti-glare and anti-reflection film according to claim 1, wherein a refractive index of the first coating is ranging from 1.3 to 1.4, and a refractive index of the second coating is ranging from 1.6 to 1.7. ### Claim 8 (depends on 1) The anti-glare and anti-reflection film according to claim 1, wherein a material of the hardened layer is a composite resin, and the composite resin comprises at least two different kinds of resins. ### Claim 9 (depends on 1) The anti-glare and anti-reflection film according to claim 1, wherein both the particle core and the second extinction particles are selected from at least one of fumed SiO2, precipitated SiO2, modified SiO2, and metal oxide particles. ### Claim 10 (depends on 1) The anti-glare and anti-reflection film according to claim 1, wherein a size of the second extinction particles is smaller than a size of the first extinction particles. ### Claim 11 A polarizer, comprising: a polarized body; and an anti-glare and anti-reflection film formed on the polarized body; wherein the anti-glare and anti-reflection film comprises: a hardened layer; first extinction particles dispersed in the hardened layer; and second extinction particles dispersed in the hardened layer; wherein the first extinction particles comprise a particle core, a first coating covering the particle core, and a second coating covering the first coating, and the first coating has a refractive index different from that of the second coating; and wherein a mass percentage of the first extinction particles is greater than 80% of a total mass of the first extinction particles and the second extinction particles. ### Claim 12 (depends on 11) The polarizer according to claim 11, wherein at least a part of the first extinction particles are exposed from a surface of the hardened layer away from the polarized body. ### Claim 13 (depends on 12) The polarizer according to claim 12, wherein the first extinction particles exposed from the hardened layer are uniformly distributed and uniform in size. ### Claim 14 (depends on 12) The polarizer according to claim 12, wherein a height of a portion of the first extinction particles exposed from the hardened layer protruding from a surface of the hardened layer is defined as H, and His within a following range: ⅔R≤H<2R, wherein R is a radius of the first extinction particles. ### Claim 15 (depends on 12) The polarizer according to claim 12, wherein another part of the first extinction particles is accumulated in the hardened layer. ### Claim 16 (depends on 11) The polarizer according to claim 11, wherein a diameter of the particle core is defined as d1, a thickness of the first coating is defined as d2, and a thickness of the second coating is defined as d3; wherein 2 μm≤d1≤3 μm, 0.5 μm≤d2≤1.5 μm, and 100 nm≤d3≤200 nm. ### Claim 17 (depends on 11) The polarizer according to claim 11, wherein a material of the hardened layer is a composite resin, and the composite resin comprises at least two different kinds of resins. ### Claim 18 A display panel comprising: a display substrate; and a polarizer; wherein the polarizer comprises a polarized body and an anti-glare and anti-reflection film formed on the polarized body; wherein the anti-glare and anti-reflection film comprises: a hardened layer; first extinction particles dispersed in the hardened layer; and second extinction particles dispersed in the hardened layer; wherein the first extinction particles comprise a particle core, a first coating covering the particle core, and a second coating covering the first coating, and the first coating has a refractive index different from that of the second coating; and wherein a mass percentage of the first extinction particles is greater than 80% of a total mass of the first extinction particles and the second extinction particles.