Low-color scratch-resistant articles with a multilayer optical film
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C04B-035/597
G02B-001/10
C04B-035/58
G02B-001/113
G02B-001/115
G02B-001/11
출원번호
US-0331656
(2014-07-15)
등록번호
US-9079802
(2015-07-14)
발명자
/ 주소
Bellman, Robert Alan
Hart, Shandon Dee
Koch, III, Karl William
Paulson, Charles Andrew
출원인 / 주소
Corning Incorporated
대리인 / 주소
Patel, Payal A.
인용정보
피인용 횟수 :
7인용 특허 :
85
초록▼
Embodiments of this disclosure pertain to articles exhibiting scratch-resistance and improved optical properties. In some examples, the article exhibits a color shift of about 2 or less, when viewed at an incident illumination angle from about 0 degrees to about 60 degrees from normal under an illum
Embodiments of this disclosure pertain to articles exhibiting scratch-resistance and improved optical properties. In some examples, the article exhibits a color shift of about 2 or less, when viewed at an incident illumination angle from about 0 degrees to about 60 degrees from normal under an illuminant, and hardness of at least 14 GPa at an indentation depth of at least 100 nm from the surface of the article. In one or more embodiments, the articles include a substrate, and an optical film disposed on the substrate. The optical film includes a scratch-resistant layer and an optical interference layer. The optical interference layer may include one or more sub-layers that exhibit different refractive indices. In one example, the optical interference layer includes a first low refractive index sub-layer and a second a second high refractive index sub-layer. In some instances, the optical interference layer may include a third sub-layer.
대표청구항▼
1. An article comprising: a substrate having a surface and comprising a glass, a glass-ceramic, or single-crystal sapphire; andan optical film disposed on the substrate surface forming a coated surface, the optical film comprising a scratch-resistant layer and an optical interference layer disposed
1. An article comprising: a substrate having a surface and comprising a glass, a glass-ceramic, or single-crystal sapphire; andan optical film disposed on the substrate surface forming a coated surface, the optical film comprising a scratch-resistant layer and an optical interference layer disposed between the scratch-resistant layer and the substrate;wherein the article comprises a hardness of about 14 GPa or greater, as measured by indenting the coated surface with a Berkovitch indenter to form an indent having an indentation depth of at least about 100 nm from the surface of the coated surface, andwherein the article comprises an average transmission of 85% or greater; and wherein the article comprises a color shift of about 2 or less, when viewed at an incident illumination angle in the range from about 2 degrees to about 60 degrees from normal incidence, under an International Commission on Illumination illuminant selected from the group consisting of A series illuminants, B series illuminants, C series illuminants, D series illuminants, and F series illuminants,wherein color shift is calculated using the equation √((a*2-a*1)2+(b*2-b*1)2), with a*1, and b*1 representing the coordinates of the article when viewed at normal incidence and a*2, and b*2 representing the coordinates of the article when viewed at the incident illumination angle. 2. The article of claim 1, wherein the optical interference layer comprises a first low refractive index RI sub-layer and a second high RI sub-layer. 3. The article of claim 2, wherein the difference between the refractive index of the first low RI sub-layer and the refractive index of the second high RI sub-layer is about 0.01 or greater. 4. The article of claim 1, wherein the optical interference layer comprises a plurality of sub-layer sets, the plurality of sub-layer sets comprising a first low RI sub-layer and a second high RI sub-layer. 5. The article of claim 4, wherein the optical interference layer further comprises a third sub-layer disposed between at least one of: the plurality of sub-layer sets and the scratch-resistant layer; andthe substrate and the plurality of sub-layer sets, and wherein the third sub-layer has a RI between the refractive index of the first low RI sub-layer and the refractive index of the second high RI sub-layer. 6. The article of claim 4, wherein the optical interference film comprises up to about 10 sub-layer sets. 7. The article of claim 4, wherein at least one of the first low RI sub-layer and the second high RI sub-layer comprises an optical thickness (n*d) in the range from about 2 nm to about 200 nm. 8. The article of claim 1, wherein the optical interference layer comprises a thickness of about 800 nm or less. 9. The article of claim 1, wherein the optical interference layer comprises an average light reflection of about 0.5% or less over the optical wavelength regime. 10. The article of claim 1, wherein the article comprises an average transmittance or average reflectance having an average oscillation amplitude of about 5 percentage points or less over the optical wavelength regime. 11. The article of claim 1, wherein the article comprises a hardness of about 16 GPa or greater as measured by indenting the coated surface with a Berkovitch indenter to form an indent having an indentation depth of at least about 100 nm from the surface of the coated surface. 12. The article of claim 1, wherein the article exhibits a surface hardness of about 14 GPa or greater, as measured on the coated surface by indenting the coated surface with a Berkovitch indenter to form an indent having an indentation depth of at least about 100 nm from the surface of the coated surface. 13. The article of claim 1, wherein the substrate is selected from the group consisting of soda lime glass, alkali aluminosilicate glass, alkali containing borosilicate glass and alkali aluminoborosilicate glass. 14. The article of claim 13, wherein the substrate is chemically strengthened and comprises a compressive stress (CS) layer with a surface CS of at least 250 MPa extending within the chemically strengthened glass from a surface of the chemically strengthened glass to a depth of layer (DOL) of at least about 10 μm. 15. An article comprising: a substrate comprising a substrate surface and comprising a glass, a glass-ceramic, or single-crystal sapphire; andan optical film disposed-on the substrate surface forming a coated surface, wherein the optical film comprises a scratch-resistant layer and an optical interference layer disposed between the scratch-resistant layer and the substrate, the optical interference layer comprising at least one set of sub-layers, the set of sub-layers comprising a first low RI sub-layer and a second high RI sub-layer, wherein the article comprises a hardness in the range from about 14 GPa to about 50 GPa as measured by indenting the coated surface with a Berkovitch indenter to form an indent having an indentation depth of at least about 100 nm from the surface of the coated surface, wherein the article comprises an average transmission of 85% or greater; and wherein the article comprises a color shift of less than about 2, when viewed at an incident illumination angle in the range from about 2 degrees to about 60 degrees from normal incidence under an International Commission on Illumination illuminant and F series illuminants, andwherein color shift is calculated using the equation √((a*2-a*1)2+(b*2-b*1)2) with a*1, and b*1 representing the coordinates of the article when viewed at normal incidence and a*2, and b*2 representing the coordinates of the article when viewed at the incident illumination angle. 16. The article of claim 15, wherein the first low RI sub-layer comprises at least one of SiO2, Al2O3, GeO2, SiO, AlOxNy, SiOXNY, SiuAlvOxNy, MgO, MgF2, BaF2, CaF2, DyF3, YbF3, YF3, and CeF3, and wherein the second high RI sub-layer comprises at least one of SiuAlvOxNy, Ta2O5, Nb2O5, AlN, Si3N4, AloxNy, SiOXNY, HfO2, TiO2, ZrO2, Y2O3, Al2O3, and MoO3. 17. The article of claim 15, wherein the scratch-resistant layer comprises at least one of AlN, Si3N4, AlOXNY, SiOXNY, Al2O3, SixCy, SixOyCz, ZrO2, TiOXNY, diamond, diamond-like carbon, and SiuAlvOxNy. 18. The article of claim 15, wherein the article further comprises a crack mitigating layer. 19. The article of claim 1, wherein the substrate comprises a curved substrate. 20. The article of claim 15, wherein the substrate comprises a curved substrate. 21. The article of claim 1, wherein the substrate comprises a Young's modulus in the range from about 30 GPa to about 120 GPa. 22. The article of claim 15, wherein the substrate comprises a Young's modulus in the range from about 30 GPa to about 120 GPa. 23. The article of claim 1, wherein the substrate comprises a refractive index in the range from about 1.45 to about 1.55. 24. The article of claim 15, wherein the substrate comprises a glass or a glass ceramic. 25. The article of claim 24, wherein the substrate comprises a refractive index in the range from about 1.45 to about 1.55. 26. The article of claim 1, wherein the incident illumination angle is in the range from about 5 degrees to about 30 degrees and the illuminant comprises an International Commission on Illumination F series illuminants. 27. The article of claim 15, wherein the incident illumination angle is in the range from about 30 degrees to about 60 degrees.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (85)
Kimock Fred M. (Macungie PA) Knapp Bradley J. (Allentown PA) Finke Steven J. (Kutztown PA) Galdieri John V. (New Tripoli PA), Abrasion wear resistant coated substrate product.
Kimock Fred M. (Macungie PA) Knapp Bradley J. (Allentown PA) Finke Steven J. (Kutztown PA) Galdieri John V. (New Tripoli PA), Abrasion wear resistant coated substrate product.
Shelestak, Larry J.; Goodwin, George B.; Mishra, Amarendra; Baldauff, James M., Aircraft transparency having chemically tempered lithia-alumina-silica containing glass and method of making the chemically tempered glass.
Ando Eiichi,JPX ; Mitsui Akira,JPX ; Ebisawa Junichi,JPX ; Suzuki Koichi,JPX ; Matsumoto Kiyoshi,JPX ; Oyama Takuji,JPX, Film comprising silicon dioxide as the main component and method for its productiion.
Schultz, Niko; Henn, Christian; Gabel, Falk; Hahn, Andreas, Glass or glass-ceramic substrate with scratch-resistant coating and method for the production thereof.
Coustet,Val?rie; Nadaud,Nicolas; Barrieres,Fr?d?ric; Brochot,Jean Pierre, Glazing provided with a stack of thin layers for solar protection and/or heat insulation.
Tustison Randal W. (Lexington MA) Montanari Dennis (West Townsend MA) Varitimos Thomas (Norwood MA) diBenedetto Bernard (Wayland MA), Impact resistant and tempered optical elements.
Krzyzak,Marta; Helsch,Gundula; Heide,Gerhard; Frischat,Guenther Heinz, Method of making a glass body with a phosphorous-and porous SiO-containing coating, glass body made thereby and solution for making same.
Sol, Jean-Marc, Method of making heat treated coated article using diamond-like carbon (DLC) coating and protective film including removal of protective film via blasting.
Fletcher James C. Administrator of the National Aeronautics and Space Administration ; with respect to an invention of ( Sunnyvale CA) Wydeven ; Jr. Theodore J. (Sunnyvale CA) Hollahan John R. (San F, Oxygen post-treatment of plastic surfaces coated with plasma polymerized silicon-containing monomers.
Thies, Jens Christoph; Currie, Edwin; Meijers, Guido Jozefina Wilhelmus, Preparation of a mechanically durable single layer coating with anti-reflective properties.
Kimock Fred M. (Macungie PA) Knapp Bradley J. (Allentown PA) Finke Steven J. (Kutztown PA), Process of making abrasion wear resistant coated substrate product.
Katayama, Yoshihito; Kimura, Yukio; Maekawa, Mikako; Shidoji, Eiji; Noda, Kazuyoshi, Substrate provided with antireflection films and its production method.
Hattori, Naohito; Yoshioka, Kensuke, Transparent conductive laminate film, touch panel having this transparent conductive laminate film, and production method for this transparent conductive laminate film.
Joret Laurent,FRX, Transparent substrate provided with at least one thin layer based on silicone nitride or oxynitride and the process for obtaining it.
Bellman, Robert Alan; Hart, Shandon Dee; Koch, III, Karl William; Paulson, Charles Andrew; Price, James Joseph, Low-color scratch-resistant articles with a multilayer optical film.
Bellman, Robert Alan; Hart, Shandon Dee; Koch, III, Karl William; Paulson, Charles Andrew; Price, James Joseph, Low-color scratch-resistant articles with a multilayer optical film.
Adib, Kaveh; Hart, Shandon Dee; Koch, III, Karl William; Paulson, Charles Andrew; Price, James Joseph; Sachenik, Paul Arthur, Scratch-resistant articles with a gradient layer.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.