# US 10,483,431 B2 · Light source module 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 10,483,431 B2 - Document ID: US10483431B2 - Status: Granted - Kind: B2 - Application number: 15/981,883 - Filed: 2018-05-16 - Published: 2018-12-06 - Granted: 2019-11-19 - Earliest claimed: 2017-06-06 - Assignees: Innolux Corporation - Applicants: InnoLux Corporation - Inventors: Shu-Ming Kuo; Chung-Kuang Wei; Chin-Lung Ting; Ruey-Jer Weng - Web page: https://patentgrep.com/patent/US10483431B2 ## CPC - H10H 20/812: within the light-emitting regions, e.g. having quantum confinement structures - H10H 20/8515: {not being in contact with the bodies} - H10H 20/852: Encapsulations - H10H 20/856: Reflecting means - H10H 29/142: {Two-dimensional arrangements, e.g. asymmetric LED layout} - H10H 20/855: Optical field-shaping means, e.g. lenses - H10H 20/872: {Periodic patterns for optical field-shaping, e.g. photonic bandgap structures} - H10W 90/00: Package configurations - H10H: INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS - H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10 ## Abstract A light source module includes a quantum dot cell, a light emitting element, and an adhesive layer. The quantum dot cell includes a first glass substrate, a second glass substrate, a quantum dot region, and a reflective sealant disposed between the first glass substrate and the second glass substrate and surrounding the quantum dot region. The light emitting element is disposed at a side of the first glass substrate opposite to the quantum dot region and emits a light with a specific wavelength range. The quantum dot material in the quantum dot region converts the light with the specific wavelength range into another wavelength range. The adhesive layer is disposed at an outer side of the light emitting element for attaching the light emitting element to a surface of the first glass substrate. ## Claims ### Claim 1 A light source module, comprising: a quantum dot cell, comprising: a first glass substrate; a second glass substrate disposed corresponding to the first glass substrate, the second glass substrate having a light-emitting surface disposed at a side of the second glass substrate opposite to the first glass substrate; a quantum dot region disposed between the first glass substrate and the second glass substrate, wherein a quantum dot material is disposed in the quantum dot region; and a reflective sealant disposed between the first glass substrate and the second glass substrate and surrounding the quantum dot region, a reflectivity of the reflective sealant ranging from 30% to 100%; a light emitting element disposed at a side of the first glass substrate opposite to the quantum dot region, wherein the light emitting element emits a light with a first wavelength range, the light enters the quantum dot region, and the quantum dot material converts the light with the first wavelength range into a light with a second wavelength range; and an adhesive layer disposed at an outer side of the light emitting element for attaching the light emitting element to a surface of the first glass substrate, wherein the adhesive layer is disposed between the light emitting element and the first glass substrate in a direction parallel to a thickness direction of the first glass substrate. ### Claim 2 (depends on 1) The light source module according to claim 1, wherein the reflective sealant comprises high-reflectivity particles. ### Claim 3 (depends on 1) The light source module according to claim 1, wherein the reflective sealant is a white sealant. ### Claim 4 (depends on 1) The light source module according to claim 1, further comprising a first optical film disposed between the first glass substrate and the quantum dot region, wherein the first optical film reflects light with a wavelength within a range from a first wavelength to 800 nm, and the first wavelength is defined as a wavelength which is 20 nm greater than a peak wavelength of the first wavelength range. ### Claim 5 (depends on 1) The light source module according to claim 1, further comprising a second optical film disposed between the second glass substrate and the quantum dot region, wherein the second optical film reflects light with a wavelength within a range from a second wavelength to 200 nm, and the second wavelength is defined as a wavelength which is 50 nm greater than a peak wavelength of the first wavelength range. ### Claim 6 (depends on 1) The light source module according to claim 1, further comprising: a light scattering layer disposed on the light-emitting surface of the second glass substrate, wherein the light scattering layer includes one of a roughened microstructure, a prism microstructure and an optical plating film. ### Claim 7 (depends on 6) The light source module according to claim 6, further comprising: an anti-reflection layer disposed on the light-emitting surface of the second glass substrate. ### Claim 8 (depends on 1) The light source module according to claim 1, further comprising: a circuit board disposed at a side of the light emitting element opposite to the first glass substrate. ### Claim 9 (depends on 1) The light source module according to claim 1, further comprising a lens disposed on the light-emitting surface of the second glass substrate. ### Claim 10 (depends on 9) The light source module according to claim 9, wherein a projection area of the reflective sealant on the first glass substrate is 50% to 200% of a projection area of the lens on the first glass substrate. ### Claim 11 (depends on 1) The light source module according to claim 1, wherein a projection area of the quantum dot region on the first glass substrate is 50% to 500% of a projection area of an emitting area of the light emitting element on the first glass substrate. ### Claim 12 A display device, comprising: a circuit board; and a plurality of light source modules disposed on the circuit board, wherein each of the light source devices comprises: a quantum dot cell, comprising: a first glass substrate; a second glass substrate disposed corresponding and in parallel to the first glass substrate, the second glass substrate having a light-emitting surface at a side of the second glass substrate opposite to the first glass substrate; a quantum dot region disposed between the first glass substrate and the second glass substrate, wherein a quantum dot material is disposed in the quantum dot region; and a reflective sealant disposed between the first glass substrate and the second glass substrate and surrounding the quantum dot region, wherein a reflectivity of the reflective sealant ranges from 30% to 100%; a light emitting element disposed at a side of the first glass substrate opposite to the quantum dot region, wherein the light emitting element emits a light with a first wavelength range, the light enters the quantum dot region, and the quantum dot material converts the light with the first wavelength range into a light with a second wavelength range; and an adhesive layer disposed at an outer side of the light emitting element for attaching the light emitting element to a surface of the first glass substrate, wherein the adhesive layer is disposed between the light emitting element and the first glass substrate in a direction parallel to a thickness direction of the first glass substrate. ### Claim 13 (depends on 12) The display device according to claim 12, wherein the first glass substrate and the second glass substrate are common to the plurality of light source modules, the reflective sealants of the plurality of light source modules being connected to each other, and the adhesive layers of the plurality of light source modules being connected to each other. ### Claim 14 (depends on 12) The display device according to claim 12, wherein the first glass substrates and the second glass substrates of the plurality of light source modules are disposed separately, the reflective sealants of the plurality of light source modules being disposed separately, and the adhesive layers of the plurality of light source modules being disposed separately. ### Claim 15 (depends on 12) The display device according to claim 12, wherein in one of the plurality of light source modules, a lens is further disposed on the light-emitting surface of the second glass substrate, and a projection area of the reflective sealant on the first glass substrate is 50% to 200% of a projection area of the lens on the first glass substrate. ### Claim 16 (depends on 12) The display device according to claim 12, wherein a projection area of the quantum dot region on the first glass substrate is 50% to 500% of a projection area of the emitting area of the light emitting element on the first glass substrate.