WO2022011070 TEXTURED REGION TO REDUCE SPECULAR REFLECTANCE INCLUDING A LOW REFRACTIVE INDEX SUBSTRATE WITH HIGHER ELEVATED SURFACES AND LOWER ELEVATED SURFACES AND A HIGH REFRACTIVE INDEX MATERIAL DISPOSED ON THE LOWER ELEVATED SURFACES

Settings

Stemming

Single Family Member

Include NPL

Feedback

Goto Application

Publication Number WO/2022/011070

Publication Date 13.01.2022

International Application No. PCT/US2021/040772

International Filing Date 08.07.2021

IPC

CPC

View more classifications

View less classifications

Applicants

CORNING INCORPORATED [US]/[US]

Inventors

HART, Shandon Dee
KOCH III, Karl William
SENARATNE, Wageesha
WOOD, William Allen

Agents

TUCKER, William J.

Priority Data

63/049,843

09.07.2020

Publication Language English (en)

Filing Language English (EN)

Designated States

View all

Title

(EN) TEXTURED REGION TO REDUCE SPECULAR REFLECTANCE INCLUDING A LOW REFRACTIVE INDEX SUBSTRATE WITH HIGHER ELEVATED SURFACES AND LOWER ELEVATED SURFACES AND A HIGH REFRACTIVE INDEX MATERIAL DISPOSED ON THE LOWER ELEVATED SURFACES

(FR) RÉGION TEXTURÉE POUR RÉDUIRE LA RÉFLECTANCE SPÉCULAIRE COMPRENANT UN SUBSTRAT À FAIBLE INDICE DE RÉFRACTION AYANT DES SURFACES SUPÉRIEURES ÉLEVÉES ET DES SURFACES INFÉRIEURES ÉLEVÉES ET UN MATÉRIAU À HAUT INDICE DE RÉFRACTION DISPOSÉ SUR LES SURFACES INFÉRIEURES ÉLEVÉES

Abstract

(EN) A substrate for a display article includes (a) a primary surface; and (b) a textured region on at least a portion of the primary surface, the textured region comprising: (i) one or more higher surfaces residing at a higher mean elevation parallel to a base-plane disposed below the textured region and extending through the substrate; (ii) one or more lower surfaces residing at a lower mean elevation parallel to the base-plane that is less than the higher mean elevation; and (iii) a high-index material disposed on each of the one or more lower surfaces residing at the lower mean elevation, the high-index material forming one or more intermediate surfaces residing at an intermediate mean elevation parallel to the base-plane that is greater than the lower mean elevation but less than the higher mean elevation, the high-index material comprising an index of refraction that is greater than the index of refraction of the substrate.

(FR) La présente invention concerne un substrat pour un article d’affichage comprenant (a) une surface primaire ; et (b) une région texturée sur au moins une portion de la surface primaire, la région texturée comprenant : (i) une ou plusieurs surfaces supérieures résidant au niveau d’une élévation moyenne supérieure parallèle à un plan de base disposé au-dessous de la région texturée et s’étendant à travers le substrat ; (ii) une ou plusieurs surfaces inférieures résidant au niveau d’une élévation moyenne inférieure parallèle au plan de base qui est inférieure à l’élévation moyenne supérieure ; et (iii) un matériau à indice élevé disposé sur chacune des une ou plusieurs surfaces inférieures résidant au niveau de l’élévation moyenne inférieure, le matériau à indice élevé formant une ou plusieurs surfaces intermédiaires résidant au niveau d’une élévation moyenne intermédiaire parallèle au plan de base qui est supérieure à l’élévation moyenne inférieure mais inférieure à l’élévation moyenne supérieure, le matériau à indice élevé comprenant un indice de réfraction qui est supérieur à l’indice de réfraction du substrat.

Latest bibliographic data on file with the International Bureau

C	CHEMISTRY; METALLURGY
03	GLASS; MINERAL OR SLAG WOOL
C	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
17	Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
22	with other inorganic material

C	CHEMISTRY; METALLURGY
03	GLASS; MINERAL OR SLAG WOOL
C	CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
17	Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating
22	with other inorganic material

C	CHEMISTRY; METALLURGY
03	GLASS; MINERAL OR SLAG WOOL
C	CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
15	Surface treatment of glass, not in the form of fibres or filaments, by etching

C	CHEMISTRY; METALLURGY
03	GLASS; MINERAL OR SLAG WOOL
C	CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
17	Surface treatment of glass, not in the form of fibres or filaments, by coating
34	with at least two coatings having different compositions
3411	with at least two coatings of inorganic materials
3429	at least one of the coatings being a non-oxide coating
3435	comprising a nitride, oxynitride, boronitride or carbonitride

C	CHEMISTRY; METALLURGY
03	GLASS; MINERAL OR SLAG WOOL
C	CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
21	Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
001	in liquid phase, e.g. molten salts, solutions
002	to perform ion-exchange between alkali ions

Processing

National Phase Entries

Authority File

Settings

Feedback

Goto Application

1. WO2022011070 - TEXTURED REGION TO REDUCE SPECULAR REFLECTANCE INCLUDING A LOW REFRACTIVE INDEX SUBSTRATE WITH HIGHER ELEVATED SURFACES AND LOWER ELEVATED SURFACES AND A HIGH REFRACTIVE INDEX MATERIAL DISPOSED ON THE LOWER ELEVATED SURFACES

C	CHEMISTRY; METALLURGY
23	COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C	COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
14	Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
02	Pretreatment of the material to be coated
021	Cleaning or etching treatments

G	PHYSICS
02	OPTICS
B	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
1	Optical elements characterised by the material of which they are made
10	Optical coatings produced by application to, or surface treatment of, optical elements
11	Anti-reflection coatings

G	PHYSICS
02	OPTICS
B	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
2207	Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
101	Nanooptics

G	PHYSICS
02	OPTICS
B	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27	Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
42	Diffraction optics ; , i.e. systems including a diffractive element being designed for providing a diffractive effect
4205	having a diffractive optical element [DOE] contributing to image formation, e.g. whereby modulation transfer function MTF or optical aberrations are relevant

G	PHYSICS
02	OPTICS
B	OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
27	Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
42	Diffraction optics ; , i.e. systems including a diffractive element being designed for providing a diffractive effect
4272	having plural diffractive elements positioned sequentially along the optical path