# US 11,908,984 B2 · Light emitting device having a reflective member > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,908,984 B2 - Document ID: US11908984B2 - Status: Granted - Kind: B2 - Application number: 17/673,267 - Filed: 2022-02-16 - Published: 2022-06-02 - Granted: 2024-02-20 - Earliest claimed: 2018-01-10 - Assignees: Seoul Semiconductor Co., Ltd. - Applicants: Seoul Semiconductor Co., Ltd. - Inventors: Hye In Kim; Jung Hun Son - Web page: https://patentgrep.com/patent/US11908984B2 ## CPC - H10H 20/856: Reflecting means - H10H 20/819: characterised by their shape, e.g. curved or truncated substrates - H10H 20/8512: {Wavelength conversion materials} - H10W 90/00: Package configurations - H10H 20/851: Wavelength conversion means - H10H 20/853: characterised by their shape - H10H 20/857: Interconnections, e.g. lead-frames, bond wires or solder balls - 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 The present disclosure relates to a light-emitting device. The light-emitting device includes a substrate, a first light-emitting chip, a first wavelength conversion member, and a barrier member. The first light-emitting chip is mounted on the substrate. The first wavelength conversion member covers the upper surface of the first light-emitting chip. A first reflective member covers the side surface of the first wavelength conversion member. Further, the barrier member includes an outer wall surrounding the side surfaces of the first light-emitting chip and the first reflective member. ## Claims ### Claim 1 A light emitting device, comprising: a substrate; a light emission region disposed on the substrate and including a first light emission element and a second light emission element that are configured to emit different wavelengths of light; a wavelength converter including a first wavelength converter disposed on the first light emission element and a second wavelength converter disposed on the second light emission element; and a barrier member comprising: an inner portion disposed between the first wavelength converter and the second wavelength converter and having a surface located further away from the substrate than surfaces of the first light emission element and the second light emission element; an outer portion disposed in an outer periphery of the light emission region and having a surface connected to the surface of the inner portion, and wherein the outer portion includes fillers and has a strength different from a strength of the inner portion. ### Claim 2 (depends on 1) The light emitting device of claim 1, wherein the first light emission element and the second light emission element are configured to operate independently from each other. ### Claim 3 (depends on 1) The light emitting device of claim 1, wherein an amount of fillers in the outer portion of the barrier member is greater than an amount of fillers in the inner portion of the barrier member. ### Claim 4 (depends on 1) The light emitting device of claim 1, wherein the surface of the inner portion and the surface of the outer portion are flat. ### Claim 5 (depends on 1) The light emitting device of claim 1, wherein the light emission region includes additional light emission elements such that the additional light emission elements and the first light emission element and the second light emission element are arranged in rows and columns. ### Claim 6 (depends on 1) The light emitting device of claim 1, further comprising: a reflective area including materials capable of reflecting light emitted from the first light emission element and the second light emission element and disposed to be in contact with the inner portion of the barrier member. ### Claim 7 (depends on 1) The light emitting device of claim 1, further comprising: a light passage structure disposed over the first light emission element and the second light emission element and having a thickness greater than a separation distance between the first light emission element and the second light emission element. ### Claim 8 A light emitting device, comprising: a substrate; a light emission region disposed on the substrate and including a first light emission element and a second light emission element that are configured to emit light corresponding to different colors from each other; a wavelength converter including a first wavelength converter disposed on the first light emission element and a second wavelength converter disposed on the second light emission element; and a barrier member comprising: an inner portion disposed between the first wavelength converter and the second wavelength converter; an outer portion surrounding the light emission region, and wherein the first light emission element and the second light emission element are separated by a separation distance that is 190 μm or less, and wherein the outer portion includes fillers and has a strength different from a strength of the inner portion. ### Claim 9 (depends on 8) The light emitting device of claim 8, wherein the first wavelength converter and the second wavelength converter include reflective materials that reflect the light. ### Claim 10 (depends on 8) The light emitting device of claim 8, wherein an amount of fillers in the outer portion of the barrier member is greater than an amount of fillers in the inner portion of the barrier member. ### Claim 11 (depends on 8) The light emitting device of claim 8, wherein a surface of the inner portion and a surface of the outer portion are flat. ### Claim 12 (depends on 8) The light emitting device of claim 8, wherein the light emission region includes additional light emission elements such that the additional light emission elements and the first light emission element and the second light emission element are arranged in rows and columns. ### Claim 13 (depends on 8) The light emitting device of claim 8, further comprising: a reflective area including materials capable of reflecting light emitted from the first light emission element and the second light emitting emission element and disposed to be in contact with the inner portion of the barrier member. ### Claim 14 (depends on 8) The light emitting device of claim 8, further comprising: a light passage structure disposed over the first light emission element and the second light emission element and configured to allow light emitted from the first light emission element and the second light emission element to cross each other inside the light passage structure. ### Claim 15 A light emitting device, comprising: a substrate; a light emission region disposed over the substrate and including a first light emission element and second light emission element, each of the first light emission element and the second light emission element including a first semiconductor layer having a first conductivity type and a second semiconductor layer having a second conductivity type; a first wavelength converter disposed on the first light emission element; a second wavelength converter disposed on the second light emission element; bonding material disposed on the substrate and electrically connected to the first semiconductor layer and the second semiconductor layer of each of the first light emission element and the second light emission element, the bonding material configured to provide electrical paths to electrically connect the substrate to the first light emission element and the second by conductive material; and a barrier member comprising: an inner portion disposed between the first wavelength converter and the second wavelength converter and having a surface located higher than surfaces of the first light emission element and the second light emission element; an outer portion surrounding an outer periphery of the light emission region, and wherein the outer portion includes fillers and has a strength different from a strength of the inner portion. ### Claim 16 (depends on 15) The light emitting device of claim 15, wherein the surface of the inner portion is connected to a surface of the outer portion. ### Claim 17 (depends on 15) The light emitting device of claim 15, wherein the first light emission element and the second light emission element are configured to operate independently from each other. ### Claim 18 (depends on 15) The light emitting device of claim 15, wherein an amount of fillers in the outer portion of the barrier member is greater than an amount of fillers in the inner portion of the barrier member. ### Claim 19 (depends on 15) The light emitting device of claim 15, wherein the surface of the inner portion and the surface of the outer portion are flat. ### Claim 20 (depends on 15) The light emitting device of claim 15, further comprising: a reflective area including materials capable of reflecting light emitted from the first light emission element and the second light emission element and disposed to be in contact with the inner portion of the barrier member. ### Claim 21 (depends on 15) The light emitting device of claim 15, further comprising: a light passage structure disposed over the first light emission element and the second light emission element and having a thickness greater than a separation distance between the first light emission element and the second light emission element.