# US 2014/0153091 A1 · Glass encapsulated polymeric lenticular system for autostereoscopic display > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0153091 A1 - Document ID: US20140153091A1 - Status: Published application - Kind: A1 - Application number: 13/690,281 - Filed: 2012-11-30 - Published: 2014-06-05 - Earliest claimed: 2012-11-30 - Assignees: Corning Incorporated - Inventors: Robert Addison Boudreau; Ying Zhang - Web page: https://patentgrep.com/patent/US20140153091A1 ## CPC - G02B 30/27: involving lenticular arrays - B82Y 20/00: Nanooptics, e.g. quantum optics or photonic crystals - B82Y 30/00: Nanotechnology for materials or surface science, e.g. nanocomposites - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - B82Y: SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES ## Abstract A lenticular system for autostereoscopic display devices in which a transparent polymeric lenticular array is embedded between two glass sheets and the gap between the polymeric lenticular array and the outer cover is filled with a transparent polymeric filling having a refractive index different than the refractive index of the polymeric lenticular array to reduce glare. ## Claims ### Claim 1 A lenticular system for autostereoscopic display devices comprising: a. a polymeric sheet formed of a first transparent polymer having a first refractive index and formed in a lenticular array, wherein the thusly formed polymeric lenticular array includes a plurality of longitudinally extending projections arranged in substantially parallel rows on the surface thereof; b. a glass substrate and a glass cover; c. the polymeric lenticular array being sandwiched between the glass substrate and the glass cover, there being a gap between the projections on the polymeric lenticular array and the cover; d. the gap between the glass cover and the projections on the polymeric lenticular array being filled with a filling layer formed of a second transparent polymer having second refractive index; and e. the second refractive index being so related to the first refractive index of the polymeric lenticular array that light reflected at an interface between the polymeric lenticular array and the polymeric filling will not exceed 4% of a total light incident at the interface. ### Claim 2 (depends on 1) The lenticular system according to claim 1 wherein a difference between the second refractive index and the first refractive index is between 0.1 and 2. ### Claim 3 (depends on 1) The lenticular system according to claim 1 wherein a thickness of the glass cover is between 10 μm and 300 μm. ### Claim 4 (depends on 1) The lenticular system according to claim 1 wherein the thickness of the glass cover is between 95 μm and 105 μm. ### Claim 5 (depends on 1) The lenticular system according to claim 1 wherein the polymeric sheet is formed of a polymer selected from the group consisting of acrylates, acrylamides, epoxies, polyurethane, ester, polyimides, siloxanes, and combinations thereof. ### Claim 6 (depends on 1) The lenticular system according to claim 1 wherein the transparent polymeric filling layer is a polymer selected from the group consisting of acrylates, acrylamides, epoxies, polyurethane, ester, polyimides, siloxanes, and combinations thereof. ### Claim 7 (depends on 1) The lenticular system according to claim 1 wherein the longitudinally extending projections are semi-cylindrical in shape. ### Claim 8 (depends on 1) The lenticular system according to claim 1, wherein the polymeric sheet includes a minor amount of inorganic nanoparticles additives having a size of less than 25 nm, whereby the first refractive index may be raised. ### Claim 9 (depends on 1) The lenticular system according to claim 1, wherein the polymeric filling layer includes a minor amount of inorganic nanoparticles additives having a size of less than 25 nm, whereby the first refractive index may be raised. ### Claim 10 An autostereoscopic display device comprising a. a pixelated image source and a lenticular system onto which the pixilated image is displayed; b. the lenticular system comprising: i. a polymeric sheet formed of a first transparent polymer having a first refractive index and formed in a lenticular array, wherein the thusly formed polymeric lenticular array includes a plurality of longitudinally extending projections arranged in substantially parallel rows on the surface thereof; ii. a glass substrate and a glass cover; iii. the polymeric lenticular array being sandwiched between the glass substrate and the glass cover, there being a gap between the projections on the polymeric lenticular array and the cover; iv. the gap between the glass cover and the projections on the polymeric lenticular array being filled with a filling layer formed of a second transparent polymer having second refractive index; and v. the second refractive index being so related to the first refractive index of the polymeric lenticular array that light reflected at an interface between the polymeric lenticular array sheet and the polymeric filling will not exceed 4% of a total light incident at the interface. ### Claim 11 (depends on 10) The autostereoscopic display device according to claim 10 wherein a difference between the second refractive index and the first refractive index is between 0.1 and 2. ### Claim 12 (depends on 10) The autostereoscopic display device according to claim 10 wherein a thickness of the glass cover is between 50 μm and 300 μm. ### Claim 13 (depends on 10) The autostereoscopic display device according to claim 10 wherein the thickness of the glass cover is between 95 μm and 105 μm. ### Claim 14 (depends on 10) The autostereoscopic display device according to claim 10 wherein the polymeric sheet is formed of a polymer selected from the group consisting of acrylates, acrylamides, epoxies, polyurethane, ester, polyimides, siloxanes, and combinations thereof. ### Claim 15 (depends on 10) The autostereoscopic display device according to claim 10 wherein the transparent polymeric filling layer is a polymer selected from the group consisting of acrylates, acrylamides, epoxies, polyurethane, ester, polyimides, siloxanes, and combinations thereof. ### Claim 16 (depends on 10) The autostereoscopic display device according to claim 10 wherein the longitudinally extending projections are semi-cylindrical in shape. ### Claim 17 (depends on 10) The autostereoscopic display device of claim 10 wherein the display includes a touch screen and the thickness of both the glass substrate and the glass cover is between 10 μm and 300 μm. ### Claim 18 (depends on 10) The autostereoscopic display device according to claim 10 wherein the polymeric sheet includes a minor amount of inorganic nanoparticles additives having a size of less than 25 nm, whereby the first refractive index may be raised. ### Claim 19 (depends on 10) The autostereoscopic display device according to claim 10, wherein the polymeric filling layer includes a minor amount of inorganic nanoparticles additives having a size of less than 25 nm, whereby the first refractive index may be raised. ### Claim 20 A method for forming a lenticular system for autostereoscopic display devices comprising the steps of: a. arranging a polymeric lenticular lens array, formed of a first transparent polymeric sheet having a first refractive index with a plurality of longitudinally extending projections arranged in substantially parallel rows on the surface thereof, on a glass substrate; b. placing a filling layer of a liquid second transparent polymer having a second refractive index differing from the first refractive index by between 0.1 and 2; c. placing a glass cover atop the filling layer; and d. curing the filling layer.