# US 12,113,149 B2 · Light source device including light source, liquid crystal shutter, and lens > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,113,149 B2 - Document ID: US12113149B2 - Status: Granted - Kind: B2 - Application number: 18/478,941 - Filed: 2023-09-29 - Published: 2024-01-25 - Granted: 2024-10-08 - Earliest claimed: 2021-06-30 - Assignees: Nichia Corporation - Applicants: Nichia Corporation - Inventors: Tsuyoshi Okahisa; Shintaro Noma - Web page: https://patentgrep.com/patent/US12113149B2 ## CPC - H10H 20/813: having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies - H10W 90/00: Package configurations - H10H 20/851: Wavelength conversion means - H10H 20/8514: {characterised by their shape, e.g. plate or foil} - H10H 20/8515: {not being in contact with the bodies} - H10H 20/855: Optical field-shaping means, e.g. lenses - H10H 20/0363: {of optical field-shaping means} - H10H 20/0364: {of interconnections} - H10H 20/831: characterised by their shape - H10H 20/8316: {Multi-layer electrodes comprising at least one discontinuous layer} - H10H 20/8506: {Containers} - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - H10H 20/882: {Scattering means (H10H20/82 takes precedence)} - 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 device includes a substrate, a light source, a liquid crystal shutter, and a lens. The light source is supported by the substrate. The light source includes a plurality of light emission units two-dimensionally arranged. The liquid crystal shutter is disposed on the light source. The lens is disposed on the liquid crystal shutter. The liquid crystal shutter is configured to perform independent ON/OFF control in two or more regions corresponding to at least one of the light emission units. ## Claims ### Claim 1 A light source device comprising: a substrate; a light source supported by the substrate, the light source including a plurality of light emission units two-dimensionally arranged; a liquid crystal shutter disposed on the light source; and a lens disposed on the liquid crystal shutter, wherein the liquid crystal shutter is configured to perform independent ON/OFF control in two or more regions corresponding to at least one of the light emission units. ### Claim 2 (depends on 1) The light source device according to claim 1, wherein the light emission units include a plurality of light emitting elements each having a light emission surface and an electrode surface that is opposite to the light emission surface, and a plurality of wavelength conversion members each disposed on the light emission surface of a respective one of the light emitting elements. ### Claim 3 (depends on 2) The light source device according to claim 2, wherein the light emission units further include one or more first light diffusing members disposed on the wavelength conversion members. ### Claim 4 (depends on 3) The light source device according to claim 3, wherein the light emission units further include a light transmitting member disposed on the one or more first light diffusing members, and a second light diffusing member disposed on the light transmitting member. ### Claim 5 (depends on 2) The light source device according to claim 2, wherein the light emission units further include a light shielding member covering lateral surfaces of the light emitting elements and lateral surfaces of the wavelength conversion members. ### Claim 6 (depends on 3) The light source device according to claim 3, wherein the one or more first light diffusing members is a first light diffusing member disposed over the wavelength conversion members, continuously covering upper surfaces of the wavelength conversion members, and defining a plurality of grooves each arranged between adjacent ones of regions in a lower surface of the first light diffusing member that are in contact with the wavelength conversion members. ### Claim 7 (depends on 3) The light source device according to claim 3, wherein the one or more first light diffusing members include a plurality of first light diffusing members each disposed on a respective one of the wavelength conversion members. ### Claim 8 (depends on 4) The light source device according to claim 4, wherein the light transmitting member is a glass sheet. ### Claim 9 (depends on 4) The light source device according to claim 4, wherein a total transmittance of the one or more first light diffusing members and the second light diffusing member is 30% or higher, and 90% or lower. ### Claim 10 (depends on 1) The light source device according to claim 1, further comprising a casing holding the lens, wherein the light source and the liquid crystal shutter are disposed in the casing. ### Claim 11 (depends on 1) The light source device according to claim 1, wherein the light source is configured to emit white light. ### Claim 12 (depends on 1) The light source device according to claim 1, wherein the lens is a convex lens. ### Claim 13 (depends on 1) A light source module comprising: the light source device according to claim 1; a circuit board on which the light source device is mounted; and a driver IC and a passive element that constitute a drive circuit for the light source of the light source device, the driver IC and the passive element being mounted on the circuit board.