# US 11,906,733 B2 · Heads-up display and coating therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,906,733 B2 - Document ID: US11906733B2 - Status: Granted - Kind: B2 - Application number: 18/163,530 - Filed: 2023-02-02 - Published: 2023-06-22 - Granted: 2024-02-20 - Earliest claimed: 2017-08-31 - Assignees: Vitro Flat Glass LLC - Applicants: Vitro Flat Glass LLC - Inventors: Andrew V. Wagner; Zhixun Ma; Dennis J. O'Shaughnessy; Adam D. Polcyn - Web page: https://patentgrep.com/patent/US11906733B2 ## CPC - G02B 27/0101: {characterised by optical features (G02B27/0172 takes precedence)} - B32B 17/10036: {comprising two outer glass sheets} - B32B 17/10229: {Metallic layers sandwiched by dielectric layers} - B32B 17/10568: {varying in thickness} - B32B 17/10761: {containing vinyl acetal} - G02B 27/0018: {with means for preventing ghost images (anti-reflection coatings G02B1/11)} - G02B 27/288: {Filters employing polarising elements, e.g. Lyot or Solc filters (G02B5/3016 takes precedence)} - G02B 5/0875: {the reflecting layers comprising two or more metallic layers} - G02B 5/3066: {involving the reflection of light at a particular angle of incidence, e.g. Brewster's angle} - G02B 5/3083: {Birefringent or phase retarding elements (G02B5/3008, G02B5/3016 take precedence; systems for polarisation control G02B27/286; manufacturing phase modulating patterns by lithographic processes G03F7/001)} - G02B 27/283: {used for beam splitting or combining} - G02B 2027/011: {comprising device for correcting geometrical aberrations, distortion} - G02B 2027/012: {comprising devices for attenuating parasitic image effects} - G02B 2027/0194: {with combiner of laminated type, for optical or mechanical aspects} - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - B32B: LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM ## Abstract A laminate including: a first ply having a first surface and a second surface, where the first surface is an outer surface of the laminate; a second ply having a third surface facing the second surface and a fourth surface opposite the third surface, where the fourth surface is an inner surface of the laminate; an interlayer between the plies; and an enhanced p-polarized reflective coating positioned over at least a portion of a surface of the plies. When the laminate is contacted with radiation having p-polarized radiation at an angle of 60° relative to normal of the laminate, the laminate exhibits a LTA of at least 70% and a reflectivity of the p-polarized radiation of at least 10%. A display system and method of projecting an image in a heads-up display is also disclosed. ## Claims ### Claim 1 A laminate having enhanced p-polarized radiation reflecting properties comprising: a first ply comprising a first surface and a second surface opposite the first surface, wherein the first surface comprises an outer surface of the laminate; a second ply comprising a third surface adjacent the second surface and a fourth surface opposite the third surface, wherein the fourth surface comprises an inner surface of the laminate; an interlayer positioned between the first ply and the second ply; and an enhanced p-polarized reflective coating positioned over at least a portion of at least one of the surfaces of the first ply and/or the second ply, wherein the enhanced p-polarized reflective coating comprises: a base layer positioned over the portion of the at least one of the surfaces; at least one metal functional layer positioned over at least a portion of the base layer; and at least one phase adjustment layer positioned over at least a portion of the at least one metal functional layer; wherein the laminate exhibits a luminous transmittance using standard illuminate A (LTA) value of at least 70% and a reflectivity of the p-polarized radiation of at least 5%, with Rfa* in the range of −2 to 2. ### Claim 2 (depends on 1) The laminate of claim 1, further comprising an anti-reflective coating comprising a multi-layer anti-reflective coating having one or more metal alloy oxide layers and one or more metal oxide layers. ### Claim 3 (depends on 2) The laminate of claim 2, wherein the multi-layer anti-reflective coating comprises: a first layer that is a metal alloy oxide layer; a second layer that is a metal oxide layer; a third layer that is a metal alloy oxide layer; and a fourth layer that is a metal oxide top layer. ### Claim 4 (depends on 2) The laminate of claim 2, wherein the enhanced p-polarized reflective coating is positioned over at least a portion of the second surface and the anti-reflective coating is positioned over at least a portion of the fourth surface. ### Claim 5 (depends on 1) The laminate of claim 1, wherein the base layer comprises: a first film comprising a metal alloy oxide film; and a second film positioned over the first film, of the base layer, the second film of the base layer comprising an oxide mixture film. ### Claim 6 (depends on 1) The laminate of claim 1, further comprising at least one sacrificial layer positioned between the at least one metal functional layer and the at least one phase adjustment layer. ### Claim 7 (depends on 1) The laminate of claim 1, wherein the enhanced p-polarized reflective coating further comprises: a first metal functional layer positioned over at least a portion of the base layer; a first phase adjustment layer positioned over at least a portion of the first metal functional layer; and a second metal functional layer positioned over at least a portion of the second metal functional layer. ### Claim 8 (depends on 7) The laminate of claim 7, wherein the enhanced p-polarized reflective coating further comprises: a second phase adjustment layer positioned over at least a portion of the second metal functional layer; and a third metal functional layer position over at least a portion of the second phase adjustment layer. ### Claim 9 (depends on 7) The laminate of claim 7, wherein the enhanced p-polarized reflective coating further comprises a topcoat layer positioned over at least a portion of the second metal functional layer. ### Claim 10 (depends on 9) The laminate of claim 9, wherein the enhanced p-polarized reflective coating further comprises an overcoat positioned over at least a portion of the topcoat layer. ### Claim 11 (depends on 7) The laminate of claim 7, wherein the enhanced p-polarized reflective coating further comprises a first sacrificial layer positioned between the first metal functional layer and the first phase adjustment layer. ### Claim 12 (depends on 8) The laminate of claim 8, wherein the enhanced p-polarized reflective coating further comprises a second sacrificial layer positioned between the second metal functional layer and the second phase adjustment layer. ### Claim 13 (depends on 8) The laminate of claim 8, wherein the enhanced p-polarized reflective coating further comprises a third sacrificial layer positioned over at least a portion of the third metal functional layer. ### Claim 14 (depends on 1) The laminate of claim 1, wherein the base layer has a thickness of 350-500 angstroms. ### Claim 15 A display system for projecting an image comprising: a laminate having enhanced p-polarized radiation reflecting properties comprising: a first ply comprising a first surface and a second surface opposite the first surface, wherein the first surface comprises an outer surface of the laminate; a second ply comprising a third surface adjacent the second surface and a fourth surface opposite the third surface, wherein the fourth surface comprises an inner surface of the laminate; an interlayer positioned between the first ply and the second ply; and an enhanced p-polarized reflective coating positioned over at least a portion of at least one of the surfaces of the first ply and/or the second ply, wherein the enhanced p-polarized reflective coating comprises: a base layer positioned over the portion of the at least one of the surfaces; at least one metal functional layer positioned over at least a portion of the base layer; and at least one phase adjustment layer positioned over at least a portion of the at least one metal functional layer; wherein the laminate exhibits a luminous transmittance using standard illuminate A (LTA) value of at least 70% and a reflectance of the p-polarized radiation of at least 5%, with Rfa* in the range of −2 to 2; and a radiation source directed at the laminate, the radiation source emitting radiation comprising p-polarized radiation. ### Claim 16 (depends on 15) The display system of claim 15, further comprising an anti-reflective coating comprising a multi-layer anti-reflective coating having one or more metal alloy oxide layers and one or more metal oxide layers. ### Claim 17 (depends on 16) The laminate of claim 16, wherein the multi-layer anti-reflective coating comprises: a first layer that is a metal alloy oxide layer; a second layer that is a metal oxide layer; a third layer that is a metal alloy oxide layer; and a fourth layer that is a metal oxide top layer. ### Claim 18 (depends on 16) The laminate of claim 16, wherein the enhanced p-polarized reflective coating is positioned over at least a portion of the second surface and the anti-reflective coating is positioned over at least a portion of the fourth surface. ### Claim 19 (depends on 15) The laminate of claim 15, wherein the base layer comprises: a first film comprising a metal alloy oxide film; and a second film positioned over the first film, of the base layer, the second film of the base layer comprising an oxide mixture film. ### Claim 20 (depends on 15) The laminate of claim 15, wherein the enhanced p-polarized reflective coating further comprises: a first metal functional layer positioned over at least a portion of the base layer; a first phase adjustment layer positioned over at least a portion of the first metal functional layer; and a second metal functional layer positioned over at least a portion of the second metal functional layer.