# US 12,010,893 B2 · Color conversion panel and display device including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,893 B2 - Document ID: US12010893B2 - Status: Granted - Kind: B2 - Application number: 17/356,250 - Filed: 2021-06-23 - Published: 2022-02-03 - Granted: 2024-06-11 - Earliest claimed: 2020-08-03 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Hoon Kim; Donghwan Kim; Jang-Bog Ju - Web page: https://patentgrep.com/patent/US12010893B2 ## CPC - H10K 59/38: comprising colour filters or colour changing media [CCM] - H10K 59/879: {comprising refractive means, e.g. lenses} - H10K 59/8792: {comprising light absorbing layers, e.g. black layers} - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A color conversion panel includes a base substrate, a low refractive index layer under the base substrate, a plurality of light blocking members spaced apart from each other in the low refractive index layer and extending in a first direction normal to a surface of the base substrate, a high refractive index layer under the low refractive index layer and including at least one convex portion that protrudes toward the base substrate, a color filter layer under the high refractive index layer, and a color conversion layer under the color filter layer and to convert an incident light into a transmitted light that has a second color different from a first color of the incident light. ## Claims ### Claim 1 A color conversion panel comprising: a base substrate; a low refractive index layer under the base substrate; a plurality of light blocking members spaced apart from each other in the low refractive index layer and extending in a first direction normal to a surface of the base substrate; a high refractive index layer under the low refractive index layer and comprising at least one convex portion, wherein the convex portion protrudes toward the base substrate; a color filter layer under the high refractive index layer; and a color conversion layer under the color filter layer that converts an incident light into a transmitted light, wherein the transmitted light has a second color different from a first color of the incident light, wherein the color filter layer is between the high refractive index layer and the color conversion layer along the first direction, and wherein each of the plurality of the light blocking members is to absorb at least a portion of an external light incident from an outside into the low refractive index layer through the base substrate at a side surface of the light blocking member. ### Claim 2 (depends on 1) The color conversion panel of claim 1, wherein the plurality of the light blocking members are spaced apart in a second direction perpendicular to the first direction. ### Claim 3 (depends on 2) The color conversion panel of claim 2, wherein a separation distance between adjacent light blocking members of the plurality of the light blocking members is greater than a length of each of the adjacent light blocking members in the first direction. ### Claim 4 (depends on 1) The color conversion panel of claim 1, wherein each of the plurality of the light blocking members has a black color. ### Claim 5 (depends on 1) The color conversion panel of claim 1, wherein the color conversion layer overlaps at least one of the plurality of the light blocking members. ### Claim 6 (depends on 1) The color conversion panel of claim 1, wherein a refractive index of the low refractive index layer is smaller than each of a refractive index of the base substrate and a refractive index of the high refractive index layer. ### Claim 7 (depends on 1) The color conversion panel of claim 1, wherein a refractive index of the high refractive index layer is the same as a refractive index of the color filter layer. ### Claim 8 A display device comprising: a display panel comprising an array of pixels; and a color conversion panel on the display panel, wherein the color conversion panel comprises: a base substrate; a low refractive index layer under the base substrate; a plurality of light blocking members spaced apart from each other in the low refractive index layer and extending in a first direction normal to a surface of the base substrate; a high refractive index layer under the low refractive index layer and comprising at least one convex portion, wherein the convex portion protrudes toward the base substrate; a color filter layer under the high refractive index layer; and a color conversion layer under the color filter layer that converts an incident light incident from the display panel into a transmitted light, wherein the transmitted light has a second color different from a first color of the incident light, and wherein each of the plurality of the light blocking members is to absorb at least a portion of an external light incident from an outside into the low refractive index layer through the base substrate at a side surface of the light blocking member. ### Claim 9 (depends on 8) The display device of claim 8, wherein the plurality of the light blocking members are spaced apart in a second direction perpendicular to the first direction. ### Claim 10 (depends on 9) The display device of claim 9, wherein a separation distance between adjacent light blocking members of the plurality of the light blocking members is greater than a length of each of the adjacent light blocking members in the first direction. ### Claim 11 (depends on 8) The display device of claim 8, wherein each of the plurality of the light blocking members has a black color. ### Claim 12 (depends on 8) The display device of claim 8, wherein the color conversion layer overlaps at least one of the plurality of the light blocking members. ### Claim 13 (depends on 8) The display device of claim 8, wherein a refractive index of the low refractive index layer is smaller than each of a refractive index of the base substrate and a refractive index of the high refractive index layer. ### Claim 14 (depends on 8) The display device of claim 8, wherein a refractive index of the high refractive index layer is the same as a refractive index of the color filter layer. ### Claim 15 A display device comprising: a display panel comprising an array of pixels; a color conversion panel on the display panel; and a film structure on the color conversion panel, wherein the color conversion panel comprises: a first base substrate; a color filter layer under the first base substrate; and a color conversion layer under the color filter layer that converts an incident light incident from the display panel into a transmitted light, wherein the transmitted light has a second color different from a first color of the incident light, wherein the film structure comprises: a second base substrate; a low refractive index layer under the second base substrate; a plurality of light blocking members spaced apart from each other in the low refractive index layer and extending in a first direction normal to a surface of the second base substrate; and a high refractive index layer under the low refractive index layer and comprising at least one convex portion, wherein the convex portion protrudes toward the second base substrate, and wherein each of the plurality of light blocking members is to absorb at least a portion of an external light incident from an outside into the low refractive index layer through the second base substrate at a side surface of the light blocking member. ### Claim 16 (depends on 15) The display device of claim 15, wherein the plurality of the light blocking members are spaced apart in a second direction perpendicular to the first direction. ### Claim 17 (depends on 16) The display device of claim 16, wherein a separation distance between adjacent light blocking members of the plurality of the light blocking members is greater than a length of each of the adjacent light blocking members in the first direction. ### Claim 18 (depends on 15) The display device of claim 15, wherein each of the plurality of the light blocking members has a black color. ### Claim 19 (depends on 15) The display device of claim 15, wherein the color conversion layer overlaps at least one of the plurality of the light blocking members. ### Claim 20 (depends on 15) The display device of claim 15, wherein a refractive index of the low refractive index layer is smaller than each of a refractive index of the second base substrate and a refractive index of the high refractive index layer.