# US 2017/0285223 A1 · Display substrate and method of manufacturing the same, and display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2017/0285223 A1 - Document ID: US20170285223A1 - Status: Published application - Kind: A1 - Application number: 15/511,328 - Filed: 2016-04-14 - Published: 2017-10-05 - Earliest claimed: 2015-06-10 - Assignees: Boe Technology Group Co., Ltd.; Beijing Boe Display Technology Co., Ltd. - Applicants: BOE Technology Group Co., Ltd.; Beijing BOE Display Technology Co., Ltd. - Inventors: Bo Zhou; Xiaodong Zhou - Web page: https://patentgrep.com/patent/US20170285223A1 ## CPC - G02B 3/08: with discontinuous faces, e.g. Fresnel lens {(diffractive Fresnel lenses G02B5/1876)} - H10K 59/879: {comprising refractive means, e.g. lenses} - H10K 59/17: Passive-matrix OLED displays - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract The present disclosure provides a display substrate and a method of manufacturing the same, and a display device. The display substrate comprises a base substrate and a pixel layer disposed on the base substrate, the pixel layer comprising a plurality of pixel units distributed in a matrix array. The display substrate further comprises a Fresnel lens layer including a plurality of Fresnel lenses. The pixel units each are located at a position within a focal plane of at least one of the Fresnel lenses. ## Claims ### Claim 1 A display substrate comprising a base substrate and a pixel layer disposed on the base substrate, the pixel layer comprising a plurality of pixel units distributed in a matrix array; wherein the display substrate further comprises a Fresnel lens layer including a plurality of Fresnel lenses; and the pixel units each are located at a position within a focal plane of at least one of the Fresnel lenses. ### Claim 2 (depends on 1) The display substrate according to claim 1, wherein each of the pixel units comprises a plurality of sub-pixels, and each of the sub-pixels corresponds to one of the Fresnel lenses and is located at a position within the focal plane of the corresponding Fresnel lens. ### Claim 3 (depends on 1) The display substrate according to claim 1, wherein each of the Fresnel lenses is equivalent to a concave lens or a convex lens. ### Claim 4 (depends on 1) The display substrate according to claim 1, wherein the Fresnel lens layer is disposed on the pixel layer and a packaging substrate is provided on the Fresnel lens layer. ### Claim 5 (depends on 1) The display substrate according to claim 1, wherein a packaging substrate is provided on the pixel layer and the Fresnel lens layer is provided on the packaging substrate. ### Claim 6 (depends on 5) The display substrate according to claim 5, further comprising a protective layer on a side of the Fresnel lens layer apart from the packaging substrate and a material of the protective layer has a refractive index not less than a refractive index of a material of the Fresnel lenses. ### Claim 7 (depends on 4) The display substrate according to claim 4, further comprising sealing glue used for sealing the base substrate and the packaging substrate; wherein the sealing glue is located around the pixel layer. ### Claim 8 (depends on 1) The display substrate according to claim 1, wherein the Fresnel lens layer comprises a plurality of Fresnel lenses and each of the Fresnel lenses comprises: a plurality of concentric circles at one side of the Fresnel lens layer, the plurality of concentric circles comprising an elliptical arc surface at a central position and projections located between two adjacent ones of concentric circles; and a flat surface located at the other side of the Fresnel lens layer opposite to the side of the Fresnel lens layer. ### Claim 9 (depends on 8) The display substrate according to claim 8, wherein each of the projections comprises a sawtooth-shaped arc surface, and the elliptical arc surface and the sawtooth-shaped arc surface together form a curved surface of the concave lens or the convex lens. ### Claim 10 (depends on 8) The display substrate according to claim 8, wherein a vertical cross section of each of the projections comprises two lateral sides of an isosceles triangle and an angular bisector of an apex angle between the two lateral sides of the isosceles triangle is perpendicular to the Fresnel lens layer. ### Claim 11 A method of manufacturing a display substrate, the method comprising: coating a transparent resin on a base substrate, on which a pixel layer is provided, so as to form a transparent resin layer, a refractive index of the transparent resin layer being greater than a refractive index of the pixel layer; forming a Fresnel lens layer by performing a mold-pressing process on the transparent resin layer by using a mold that has a shape corresponding to a shape of a Fresnel lens; coating sealing glue on the base substrate on which the Fresnel lens layer is formed, the sealing glue being located around the pixel layer; and assembling the base substrate which is coated with the sealing glue and the packaging substrate. ### Claim 12 A method of manufacturing a display substrate, the method comprising: coating sealing glue on a base substrate on which a pixel layer is formed, the sealing glue being located around the pixel layer; assembling a packaging substrate and the base substrate which is coated with the sealing glue; and attaching a Fresnel lens layer onto the packaging substrate. ### Claim 13 (depends on 12) The method according to claim 12, wherein before attaching a Fresnel lens layer onto the packaging substrate, the method further comprises: forming the Fresnel lens layer and forming a protective layer on the Fresnel lens layer. ### Claim 14 (depends on 1) A display device comprising the display substrate according to claim 1. ### Claim 15 (depends on 5) The display substrate according to claim 5, further comprising sealing glue used for sealing the base substrate and the packaging substrate; wherein the sealing glue is located around the pixel layer. ### Claim 16 (depends on 2) The display substrate according to claim 2, wherein the Fresnel lens layer comprises a plurality of Fresnel lenses and each of the Fresnel lenses comprises: a plurality of concentric circles at one side of the Fresnel lens layer, the plurality of concentric circles comprising an elliptical arc surface at a central position and projections located between two adjacent ones of concentric circles; and a flat surface located at the other side of the Fresnel lens layer opposite to the side of the Fresnel lens layer. ### Claim 17 (depends on 3) The display substrate according to claim 3, wherein the Fresnel lens layer comprises a plurality of Fresnel lenses and each of the Fresnel lenses comprises: a plurality of concentric circles at one side of the Fresnel lens layer, the plurality of concentric circles comprising an elliptical arc surface at a central position and projections located between two adjacent ones of concentric circles; and a flat surface located at the other side of the Fresnel lens layer opposite to the side of the Fresnel lens layer. ### Claim 18 (depends on 4) The display substrate according to claim 4, wherein the Fresnel lens layer comprises a plurality of Fresnel lenses and each of the Fresnel lenses comprises: a plurality of concentric circles at one side of the Fresnel lens layer, the plurality of concentric circles comprising an elliptical arc surface at a central position and projections located between two adjacent ones of concentric circles; and a flat surface located at the other side of the Fresnel lens layer opposite to the side of the Fresnel lens layer. ### Claim 19 (depends on 5) The display substrate according to claim 5, wherein the Fresnel lens layer comprises a plurality of Fresnel lenses and each of the Fresnel lenses comprises: a plurality of concentric circles at one side of the Fresnel lens layer, the plurality of concentric circles comprising an elliptical arc surface at a central position and projections located between two adjacent ones of concentric circles; and a flat surface located at the other side of the Fresnel lens layer opposite to the side of the Fresnel lens layer. ### Claim 20 (depends on 6) The display substrate according to claim 6, wherein the Fresnel lens layer comprises a plurality of Fresnel lenses and each of the Fresnel lenses comprises: a plurality of concentric circles at one side of the Fresnel lens layer, the plurality of concentric circles comprising an elliptical arc surface at a central position and projections located between two adjacent ones of concentric circles; and a flat surface located at the other side of the Fresnel lens layer opposite to the side of the Fresnel lens layer.