# US 12,015,906 B2 · Sound generating device, display apparatus including the same, and automotive apparatus including the sound generating device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,906 B2 - Document ID: US12015906B2 - Status: Granted - Kind: B2 - Application number: 18/213,212 - Filed: 2023-06-22 - Published: 2023-10-19 - Granted: 2024-06-18 - Earliest claimed: 2018-12-31 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Sungtae Lee; KwanHo Park; YeongRak Choi; Kwangho Kim - Web page: https://patentgrep.com/patent/US12015906B2 ## CPC - H04R 9/06: Loudspeakers - H04R 1/025: {Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture} - H04R 1/028: {associated with devices performing functions other than acoustics, e.g. electric candles} - H04R 7/26: Damping by means acting directly on free portion of diaphragm or cone (air damping H04R1/28) - H04R 9/022: {Cooling arrangements} - H04R 9/025: {Magnetic circuit} - H04R 9/045: {Mounting (H04R9/043 takes precedence)} - H04R 2400/11: Aspects regarding the frame of loudspeaker transducers - H04R 2499/13: Acoustic transducers and sound field adaptation in vehicles - 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 A sound generating device includes a magnet and a center pole on a yoke, a bobbin around the center pole, a coil wound around the bobbin, a frame outside the yoke, a damper between the frame and the bobbin, and a spacer in the bobbin. ## Claims ### Claim 1 A display apparatus, comprising: a display panel configured to display an image and including a first region, a second region, and a third region; a supporting member configured to support the display panel; at least one sound generating device in at least one of the first region, the second region, and the third region, the at least one sound generating device configured to vibrate the display panel; a first partition between the display panel and the supporting member, the first partition surrounding the first region, the second region, and the third region; a second partition between the first region and the third region; and a third partition between the second region and the third region, wherein the at least one sound generating device includes: a magnet and a center pole on a yoke; a bobbin around the center pole; a coil wound around the bobbin; a frame outside the yoke; a damper between the frame and the bobbin; and a spacer in the bobbin or on the frame, wherein the at least one sound generating device includes a two or more-device array sound generating module, and wherein the spacer is in the bobbin of the two or more-device array sound generating module or is on the frame. ### Claim 2 (depends on 1) The display apparatus of claim 1, further comprising a bobbin ring on the bobbin, wherein bobbin rings of the two or more-device array sound generating module are one body. ### Claim 3 (depends on 1) The display apparatus of claim 1, wherein the at least one sound generating device includes a two-device array sound generating device; and wherein the spacer is on the frame between two-device array sound generating device. ### Claim 4 (depends on 1) The display apparatus of claim 1, further comprising: an encapsulation substrate on a rear surface of the display panel; and a heat dissipation member on a rear surface of the encapsulation substrate, wherein the spacer is between the heat dissipation member and the center pole. ### Claim 5 (depends on 1) The display apparatus of claim 1, wherein the damper includes a line that a sound signal is applied to the at least one sound generating device. ### Claim 6 (depends on 1) The display apparatus of claim 1, wherein the yoke includes an extension part; wherein the display apparatus further comprises a connection member in the extension part; and wherein the at least one sound generating device is in the display panel by the connection member. ### Claim 7 (depends on 1) The display apparatus of claim 1, wherein the frame comprises an extension part; wherein the display apparatus further comprises a connection member in the extension part; and wherein the at least one sound generating device is in the display panel by the connection member. ### Claim 8 (depends on 1) The display apparatus of claim 1, wherein the spacer includes one of a spring and an adhesive. ### Claim 9 (depends on 1) The display apparatus of claim 1, wherein the at least one sound generating device includes a two-device array sound generating device; and wherein the spacer is in the bobbin of each of the two-device array sound generating device. ### Claim 10 (depends on 1) The display apparatus of claim 1, wherein the at least one sound generating device is in each of the first region and the second region. ### Claim 11 (depends on 10) The display apparatus of claim 10, further comprising: at least one first pad in the first region and a first side of the first partition; at least one second pad in a side facing the at least one first pad; and at least one third pad or at least one fourth pad in a second side vertical to the first side of the first partition. ### Claim 12 (depends on 11) The display apparatus of claim 11, further comprising at least one fifth pad or at least one sixth pad in the first region and at least one side of the second partition. ### Claim 13 (depends on 10) The display apparatus of claim 10, further comprising: at least one seventh pad in the second region and a first side of the first partition; at least one eighth pad in a side facing the at least one seventh pad; and at least one ninth pad or at least one tenth pad in a second side vertical to the first side of the first partition. ### Claim 14 (depends on 13) The display apparatus of claim 13, further comprising at least one eleventh pad or at least one twelfth pad in the second region and at least one side of the third partition. ### Claim 15 (depends on 10) The display apparatus of claim 10, wherein the at least one sound generating device is further disposed in the third region. ### Claim 16 (depends on 15) The display apparatus of claim 15, further comprising: at least one first member in the third region and a first side of the first partition; at least one second member in at least one side of the second partition; and at least one third member in at least one side of the third partition. ### Claim 17 (depends on 15) The display apparatus of claim 15, further comprising: at least one first member in the third region and a first side of the first partition; at least one second member in at least one side of the second partition; at least one third member in at least one side of the third partition; and at least one fourth member in a side facing the at least one first member. ### Claim 18 (depends on 1) The display apparatus of claim 1, wherein: the first region comprises a 1-1st region and a 1-2nd region; and the second region comprises a 2-1st region and a 2-2nd region. ### Claim 19 (depends on 18) The display apparatus of claim 18, further comprising: a fourth partition between the 1-1st region and the 1-2nd region; and a fifth partition between the 2-1st region and the 2-2nd region. ### Claim 20 (depends on 18) The display apparatus of claim 18, further comprising: at least one second pad in the 1-1st region and a first side of the first partition; at least one third pad or at least one fourth pad in a second side vertical to the first side of the first partition; at least one thirteenth pad in at least one side of the fourth partition; at least one fourteenth pad in the 1-2nd region and the second side of the first partition; and at least one fifteenth pad in at least one side of the second partition. ### Claim 21 (depends on 20) The display apparatus of claim 20, further comprising at least one fifth pad or at least one sixth pad in the 1-1st region and at least one side of the second partition. ### Claim 22 (depends on 19) The display apparatus of claim 19, further comprising: at least one eighth pad d in the 2-1st region and a first side of the first partition; at least one ninth pad or at least one tenth pad in a second side vertical to the first side of the first partition; at least one sixteenth pad in at least one side of the fifth partition; at least one seventeenth pad in the 2-2nd region and the second side; and at least one eighteenth pad in at least one side of the third partition. ### Claim 23 (depends on 22) The display apparatus of claim 22, further comprising at least one eleventh pad or at least one twelfth pad in the 2-1st region and at least one side of the third partition. ### Claim 24 (depends on 19) The display apparatus of claim 19, further comprising: at least one first member in the third region and a first side of the first partition; at least one second member in at least one side of the second partition; and at least one third member in at least one side of the third partition. ### Claim 25 (depends on 20) The display apparatus of claim 20, further comprising: at least one first member in the third region and the first side; at least one second member in at least one side of the second partition; and at least one third member in at least one side of the third partition. ### Claim 26 (depends on 21) The display apparatus of claim 21, further comprising: at least one first member in the third region and the first side; at least one second member in at least one side of the second partition; and at least one third member in at least one side of the third partition. ### Claim 27 (depends on 22) The display apparatus of claim 22, further comprising: at least one first member in the third region and the first side; at least one second member in at least one side of the second partition; and at least one third member in at least one side of the third partition. ### Claim 28 (depends on 23) The display apparatus of claim 23, further comprising: at least one first member in the third region and the first side; at least one second member in at least one side of the second partition; and at least one third member in at least one side of the third partition. ### Claim 29 (depends on 1) An automotive apparatus, comprising: a vehicle body; and the sound generating device of claim 1, the sound generating device being in the vehicle body. ### Claim 30 (depends on 29) The automotive apparatus of claim 29, wherein a sound generating device in a left portion and a sound generating device in a right portion are symmetrical with respect to a driver seat or two front seats of the vehicle body. ### Claim 31 (depends on 29) The automotive apparatus of claim 29, wherein the sound generating device in the vehicle body outputs a sound having one or more of 150 Hz to 20 kHz, 2 kHz to 20 kHz, and 60 Hz to 150 Hz.