# US 2021/0278714 A1 · Sealant, Manufacturing Method Therefor, Liquid Crystal Display Panel 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 2021/0278714 A1 - Document ID: US20210278714A1 - Status: Published application - Kind: A1 - Application number: 16/078,702 - Filed: 2018-01-17 - Published: 2021-09-09 - Earliest claimed: 2017-07-21 - Assignees: Boe Technology Group Co., Ltd.; Hefei Boe Optoelectronics Technology Co., Ltd. - Applicants: BOE Technology Group Co., Ltd.; Hefei BOE Optoelectronics Technology Co., Ltd. - Inventors: Dongling Sun - Web page: https://patentgrep.com/patent/US20210278714A1 ## CPC - G02F 1/1339: Gaskets; Spacers; Sealing of cells - G02F 1/133514: {Colour filters} - G02F 1/133617: {Illumination with ultraviolet light; Luminescent elements or materials associated to the cell} - G02F 2201/086: UV absorbing - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract A sealant, a manufacturing method therefor, a liquid crystal display (LCD) panel and a display device are provided. The sealant includes a sealant matrix and luminescent particulates distributed in the sealant matrix. The luminescent particulates at least emit ultraviolet (UV) light under UV irradiation. ## Claims ### Claim 1 A sealant, comprising: a sealant matrix; and luminescent particulates distributed in the sealant matrix, wherein the luminescent particulates are configured to at least emit ultraviolet (UV) light under UV irradiation. ### Claim 2 (depends on 1) The sealant according to claim 1, wherein material of the luminescent particulates is any one selected from Sr2MgSi3O9:Ce3+, Tb3+, Sr2B5O9Cl:Ce3+, LiSr4(BO3)3:Tb3+ and NaSr4(BO3)3:Tb3+. ### Claim 3 (depends on 1) The sealant according to claim 1, wherein at least one protective layer is formed on surfaces of the luminescent particulates. ### Claim 4 (depends on 3) The sealant according to claim 3, wherein material of the protective layer is any one selected from SiO2 and Al2O3. ### Claim 5 (depends on 1) A liquid crystal display (LCD) panel, comprising: an array substrate and a color filter (CF) substrate which are oppositely arranged, and the sealant according to claim 1 for sealing the array substrate and the CF substrate into a liquid crystal cell. ### Claim 6 (depends on 5) A display device, comprising: the liquid crystal display (LCD) panel according to claim 5. ### Claim 7 A method for preparing a sealant, comprising: providing luminescent particulates and a sealant matrix; and forming the sealant by mixing and stirring the luminescent particulates and the sealant matrix, in which the luminescent particulates at least emit UV light under UV irradiation. ### Claim 8 (depends on 7) The manufacturing method according to claim 7, further comprising: obtaining a mixed solution by adding SrCO3, MgO, H2SiO3 and Ce(NO3)3 into a TbCl3 solution according to a molar ratio of 2:1:3:1; obtaining a mixture by adding a sintering aid into the mixed solution and drying the mixed solution at a constant temperature after stirring; performing high-temperature calcination after grinding the mixture; and obtaining the luminescent particulates of Sr2MgSi3O9:Ce3+, Tb3+ material by grinding the mixture obtained after the high-temperature calcination. ### Claim 9 (depends on 7) The manufacturing method according to claim 7, further comprising: obtaining a mixed solution by adding Li2CO3, SrCO3 and H2BO3 into a TbCl3 solution according to a molar ratio of 1:8:6; obtaining a mixture by adding a sintering aid into the mixed solution and drying the mixed solution at a constant temperature after stirring; performing high-temperature calcination after grinding the mixture; and obtaining the luminescent particulates of LiSr4(BO3)3:Tb3+ material by grinding the mixture obtained after the high-temperature calcination. ### Claim 10 (depends on 7) The manufacturing method according to claim 7, further comprising: obtaining a mixed solution by adding Na2CO3 , SrCO3and H2BO3 into a TbCl3 solution according to a molar ratio of 1:8:6; obtaining a mixture by adding a sintering aid into the mixed solution and drying the mixed solution at a constant temperature after stirring; performing high-temperature calcination after grinding the mixture; and obtaining the luminescent particulates of NaSr4(BO3)3:Tb3+ material by grinding the mixture obtained after the high-temperature calcination. ### Claim 11 (depends on 7) The manufacturing method according to claim 7, further comprising: obtaining a mixed solution by adding SrCO3, SrCl2.6H2O and H3BO3 into a Ce2(SO4)3 solution according to a molar ratio of 1:1:5; obtaining a mixture by adding a sintering aid into the mixed solution and drying the mixed solution at a constant temperature after stirring; performing high-temperature calcination after grinding the mixture; and obtaining the luminescent particulates of Sr2B5O9Cl:Ce3+ material by grinding the mixture obtained after the high-temperature calcination. ### Claim 12 (depends on 7) The manufacturing method according to claim 7, further comprising: forming a protective layer on the surfaces of the luminescent particulates after providing the luminescent particulates and before mixing and stirring the luminescent particulates and the sealant matrix. ### Claim 13 (depends on 12) The manufacturing method according to claim 12, further comprising: obtaining a preliminary mixed solution by adding the luminescent particulates and Al2O3 and/or SiO2 into alcohol; and heating to burn the preliminary mixed solution after adding an incendiary agent into the preliminary mixed solution, and forming a Al2O3 protective layer and/or a SiO2 protective layer on the surfaces of the luminescent particulates. ### Claim 14 (depends on 5) The liquid crystal display panel according to claim 5, wherein material of the luminescent particulates is any one selected from Sr2MgSi3O9:Ce3+, Tb3+, Sr2B5O9Cl:Ce3+, LiSr4(BO3)3:Tb3+ and NaSr4(BO3)3:Tb3+. ### Claim 15 (depends on 5) The liquid crystal display panel according to claim 5, wherein at least one protective layer is formed on surfaces of the luminescent particulates. ### Claim 16 (depends on 15) The liquid crystal display panel according to claim 15, wherein material of the protective layer is any one selected from SiO2 and Al2O3. ### Claim 17 (depends on 2) The sealant according to claim 2, wherein at least one protective layer is formed on surfaces of the luminescent particulates. ### Claim 18 (depends on 17) The sealant according to claim 17, wherein material of the protective layer is any one selected from SiO2 and Al2O3.