# US 12,114,117 B2 · Apparatus including vibration member to generate sound and vibration for enhancing sound characteristic and sound pressure level characteristic > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,114,117 B2 - Document ID: US12114117B2 - Status: Granted - Kind: B2 - Application number: 17/539,722 - Filed: 2021-12-01 - Published: 2022-06-09 - Granted: 2024-10-08 - Earliest claimed: 2020-12-09 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Joongsup Han; Yongjoon Kim; Sungtae Lee; Sungsu Ham - Web page: https://patentgrep.com/patent/US12114117B2 ## CPC - H04R 1/02: Casings; Cabinets {; Supports therefor;} Mountings therein (H04R1/28 takes precedence {; attachments for microphones H04R1/08; mounting of transducers in earpieces H04R1/1075}) - H04R 7/045: {using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion} - H04R 7/06: comprising a plurality of sections or layers - H04R 17/00: Piezoelectric transducers; Electrostrictive transducers (piezoelectric or electrostrictive elements in general H10N30/00; details of piezoelectric or electrostrictive motors, generators or positioners {H10N30/00}) - H04R 2307/025: Diaphragms comprising polymeric materials - H04R 2400/03: Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones - H04R 2499/15: Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops - H04R: LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS (producing sounds with frequency not determined by supply frequency G10K) ## Abstract An apparatus includes a display panel configured to display an image, a vibration apparatus disposed at a rear surface of the display panel and having the display panel vibrated; and a supporting member including a plurality of holes that at least partly overlaps with the vibration apparatus, wherein the plurality of holes are arranged in a first direction and a second direction intersecting with the first direction, thereby enhancing a sound characteristic and a sound pressure level characteristic of the apparatus. ## Claims ### Claim 1 An apparatus, comprising: a display panel configured to display an image; a vibration apparatus disposed at a rear surface of the display panel and having the display panel vibrated; and a supporting member including a plurality of holes that at least partly overlaps with the vibration apparatus, wherein the plurality of holes are arranged in a first direction and a second direction intersecting with the first direction, wherein the supporting member comprises a first region overlapping a center of the vibration apparatus, a second region overlapping a periphery of the vibration apparatus, and a third region between the first region and the second region, and wherein the plurality of holes are disposed in each of the second region and the third region. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the vibration apparatus includes two or more vibration generating portions. ### Claim 3 (depends on 2) The apparatus of claim 2, wherein each of the two or more vibration generating portions comprises a plurality of first portions including an inorganic material and a plurality of second portions including an organic material disposed between the plurality of first portions. ### Claim 4 (depends on 3) The apparatus of claim 3, wherein the plurality of first portions and the plurality of second portions are arranged in one or more of a widthwise direction and a lengthwise direction of the display panel. ### Claim 5 (depends on 3) The apparatus of claim 3, wherein the plurality of first portions have a piezoelectric characteristic, and the plurality of second portions have a ductile characteristic. ### Claim 6 (depends on 2) The apparatus of claim 2, wherein each of the two or more vibration generating portions comprises: a vibration layer; a first protection member disposed at a first surface of the vibration layer; and a second protection member disposed at a second surface different from the first surface of the vibration layer. ### Claim 7 (depends on 6) The apparatus of claim 6, wherein each of the two or more vibration generating portions further comprises: a first electrode portion between the vibration layer and the first protection member; and a second electrode portion between the vibration layer and the second protection member. ### Claim 8 (depends on 6) The apparatus of claim 6, wherein the vibration layer includes a piezoelectric material. ### Claim 9 (depends on 6) The apparatus of claim 6, wherein the vibration layer comprises a plurality of first portions including an inorganic material and a plurality of second portions including an organic material disposed between the plurality of first portions. ### Claim 10 (depends on 2) The apparatus of claim 2, further comprising a pad member disposed between the two or more vibration generating portions. ### Claim 11 (depends on 10) The apparatus of claim 10, wherein the pad member comprises: a vibration layer; a first protection member disposed at a first surface of the vibration layer; and a second protection member disposed at a second surface different from the first surface of the vibration layer. ### Claim 12 (depends on 1) The apparatus of claim 1, further comprising a plate between the display panel and the vibration apparatus. ### Claim 13 (depends on 1) The apparatus of claim 1, further comprising a first partition member disposed between a rear surface of the display panel and the supporting member and surrounding the vibration apparatus, wherein the plurality of holes are disposed inside the first partition member. ### Claim 14 (depends on 1) The apparatus of claim 1, wherein the display panel includes a first region and a second region, wherein the vibration apparatus comprises a first vibration device configured to vibrate the first region and a second vibration device configured to vibrate the second region, and wherein the plurality of holes that are arranged in the first direction and the second direction overlap with each of the first vibration device and the second vibration device. ### Claim 15 (depends on 14) The apparatus of claim 14, further comprising: a first partition member surrounding the first vibration device between a rear surface of the display panel and the supporting member; and a second partition member surrounding the second vibration device between the rear surface of the display panel and the supporting member, wherein the plurality of holes are disposed inside each of the first partition member and the second partition member. ### Claim 16 (depends on 2) The apparatus of claim 2, further comprising: a first pad member disposed at each of the two or more vibration generating portions; and a second pad member disposed at a boundary of the two or more vibration generating portions and a portion of each of the two or more vibration generating portions. ### Claim 17 (depends on 2) The apparatus of claim 2, further comprising: a first pad member disposed at each of the two or more vibration generating portions; and a second pad member disposed between adjacent first pad members disposed at each of the two or more vibration generating portions. ### Claim 18 An apparatus, comprising: a vibration member; a vibration apparatus disposed at the vibration member; and a supporting member disposed at a rear surface of the vibration member, wherein the supporting member includes a plurality of holes that vary in a direction from a center of the vibration apparatus to a periphery of the vibration apparatus, wherein the supporting member comprises a first region overlapping a center of the vibration apparatus, a second region overlapping a periphery of the vibration apparatus, and a third region between the first region and the second region, and wherein the plurality of holes are disposed in each of the first region and the third region. ### Claim 19 (depends on 18) The apparatus of claim 18, wherein the vibration member includes a plate, and wherein the plate includes one of metal and single nonmetal or composite nonmetal of one or more of wood, plastic, glass, cloth, paper and leather. ### Claim 20 (depends on 18) The apparatus of claim 18, wherein the vibration member includes one of a display panel including a plurality of pixels configured to display an image, one or more non-display panels of a light emitting diode lighting panel, an organic light emitting lighting panel, and an inorganic light emitting lighting panel, one or more of a screen panel on which an image is projected from a display apparatus, a lighting panel, a signage panel, a vehicular interior material, a vehicular glass window, a vehicular exterior material, a building ceiling material, a building interior material, a building glass window, an aircraft interior material, an aircraft glass window, and a mirror. ### Claim 21 (depends on 18) The apparatus of claim 18, wherein the vibration apparatus comprises a plurality of vibration generators having a plurality of vibration generating portions. ### Claim 22 (depends on 21) The apparatus of claim 21, wherein each of the plurality of vibration generators is stacked on each other to displace in a same direction. ### Claim 23 (depends on 21) The apparatus of claim 21, further comprising a pad member disposed at a rear surface of each of the plurality of vibration generators. ### Claim 24 (depends on 18) The apparatus of claim 18, wherein the vibration apparatus comprises a plurality of vibration generators, wherein the apparatus further comprises a pad member disposed at a rear surface of each of the plurality of vibration generators, and wherein the pad member overlaps with the plurality of holes. ### Claim 25 (depends on 18) The apparatus of claim 18, further comprising a pad member between the vibration apparatus and the supporting member. ### Claim 26 (depends on 25) The apparatus of claim 25, wherein the pad member is equal to the supporting member. ### Claim 27 (depends on 18) The apparatus of claim 18, wherein the plurality of holes disposed in the first region have a first density, and wherein the plurality of holes disposed in the third region have a second density which is greater than the first density. ### Claim 28 (depends on 18) The apparatus of claim 18, wherein the number of holes disposed in the first region is smaller than the number of holes disposed in the third region, and/or wherein a size of each of the plurality of holes disposed in the first region is smaller than a size of each of the plurality of holes disposed in the third region. ### Claim 29 (depends on 1) The apparatus of claim 1, wherein the supporting member comprises a first region overlapping with a center of the vibration apparatus, a second region overlapping with a periphery of the vibration apparatus, and a third region between the first region and the second region, and wherein the number of holes increases in a direction from the first region to the second region, and/or wherein a density of each of the plurality of holes increases in a direction from the first region to the second region. ### Claim 30 (depends on 1) The apparatus of claim 1, wherein the plurality of holes are symmetrical with at least one direction of a first direction and a second direction intersecting with the first direction with respect to a center of the vibration apparatus. ### Claim 31 (depends on 1) The apparatus of claim 1, wherein the plurality of holes disposed in the second region have a first density, and wherein the plurality of holes disposed in the third region have a second density which is smaller than the first density. ### Claim 32 (depends on 1) The apparatus of claim 1, wherein the number of holes disposed in the second region is greater than the number of holes disposed in the third region, and/or wherein a size of each of the plurality of holes disposed in the second region is greater than a size of each of the plurality of holes disposed in the third region. ### Claim 33 (depends on 1) The apparatus of claim 1, wherein the supporting member comprises a first region overlapping a center of the vibration apparatus, a second region overlapping a periphery of the vibration apparatus, and a third region between the first region and the second region, and wherein the number of holes decreases in a direction from the second region to the third region, and/or wherein a density of each of the plurality of holes decreases in a direction from the second region to the third region. ### Claim 34 An apparatus, comprising: a vibration member; a vibration apparatus disposed at the vibration member; and a supporting member disposed at a rear surface of the vibration member, wherein the supporting member comprises a plurality of holes overlapping with at least a portion of the vibration apparatus, wherein the supporting member comprises a first region overlapping a center of the vibration apparatus, a second region overlapping a periphery of the vibration apparatus, and a third region between the first region and the second region, and wherein the plurality of holes are disposed in each of the second region and the third region. ### Claim 35 (depends on 34) The apparatus of claim 34, further comprising a stiffness member disposed at the rear surface of the vibration member. ### Claim 36 (depends on 35) The apparatus of claim 35, further comprising a gap provided between the stiffness member and the supporting member. ### Claim 37 (depends on 36) The apparatus of claim 36, further comprising a circuit part disposed at the rear surface of the vibration member and including a forming portion, wherein the vibration apparatus is disposed at the circuit part, and wherein the plurality of holes are disposed at the forming portion. ### Claim 38 (depends on 35) The apparatus of claim 35, wherein the stiffness member covers at least some of the plurality of holes disposed along the at least one or more of the first and second forming portions. ### Claim 39 (depends on 34) The apparatus of claim 34, further comprising: a circuit part disposed at the rear surface of the vibration member; a first forming portion extended in a first direction of the circuit part; and a second forming portion extended in a second direction different from the first direction of the circuit part, wherein the plurality of holes are disposed along the first forming portion and the second forming portion. ### Claim 40 (depends on 34) The apparatus of claim 34, further comprising: a signal cable connected to the vibration apparatus; and at least one another hole through which the signal cable is unloaded. ### Claim 41 (depends on 34) The apparatus of claim 34, wherein the vibration apparatus comprises: a vibration portion including a plurality of piezoelectric portions and a flexible portion between the plurality of piezoelectric portions; a first electrode portion disposed at a first surface of the vibration portion; and a second electrode portion disposed at a second surface different from the first surface of the vibration portion. ### Claim 42 (depends on 41) The apparatus of claim 41, wherein the vibration apparatus comprises a signal cable connected to the first electrode portion and the second electrode portion. ### Claim 43 (depends on 42) The apparatus of claim 42, wherein the signal cable comprises: a line layer connected to each of the first electrode portion and the second electrode portion; a first protection member disposed at a first surface of the line layer; and a second protection member disposed at a second surface different from the first surface of the line layer. ### Claim 44 (depends on 41) The apparatus of claim 41, wherein the vibration apparatus further comprises: a first protection member covering the first electrode portion; a second protection member covering the second electrode portion; a first plate between the first protection member and the first electrode portion; and a second plate between the second protection member and the second electrode portion. ### Claim 45 (depends on 41) The apparatus of claim 41, wherein each of the first electrode portion and the second electrode portion includes a conductive tape.