# US 2021/0279026 A1 · Display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0279026 A1 - Document ID: US20210279026A1 - Status: Published application - Kind: A1 - Application number: 17/190,788 - Filed: 2021-03-03 - Published: 2021-09-09 - Earliest claimed: 2020-03-04 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Sungsu HAM; Sungtae LEE; Joongsup HAN; Uihyeon JEONG - Web page: https://patentgrep.com/patent/US20210279026A1 ## CPC - G06F 3/16: Sound input; Sound output (speech processing G10L) - G06F 1/1605: {Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones} - G06F 1/1616: {with folding flat displays, e.g. laptop computers or notebooks having a clamshell configuration, with body parts pivoting to an open position around an axis parallel to the plane they define in closed position} - G10K 9/122: using piezoelectric driving means {(G10K9/121 takes precedence)} - G10K 9/125: with a plurality of active elements - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - G10K: SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR ## Abstract A display apparatus includes a display panel configured to display an image, and a vibration device on a rear surface of the display panel to vibrate the display panel to generate a sound, the vibration device including a vibration array including a plurality of vibration modules. ## Claims ### Claim 1 A display apparatus, comprising: a display panel configured to display an image; and a vibration device on a rear surface of the display panel to vibrate the display panel to generate a sound, the vibration device including a vibration array including a plurality of vibration modules. ### Claim 2 (depends on 1) The display apparatus of claim 1, further comprising: a pad member between the plurality of vibration modules. ### Claim 3 (depends on 1) The display apparatus of claim 1, wherein the vibration array comprises N (where N is a natural number of 2 or more) or more vibration modules. ### Claim 4 (depends on 1) The display apparatus of claim 1, wherein each of the plurality of vibration modules comprise: a plurality of first portions; and a plurality of second portions between the plurality of first portions. ### Claim 5 (depends on 4) The display apparatus of claim 4, wherein an arrangement direction of the at least one first portion and an arrangement direction of the at least one second portion are the same as a widthwise direction or a lengthwise direction of the display panel. ### Claim 6 (depends on 4) The display apparatus of claim 4, wherein: the first portion comprises an inorganic material, and the second portion comprises an organic material. ### Claim 7 (depends on 4) The display apparatus of claim 4, wherein each of the plurality of vibration modules comprises: a first electrode on the first portion and the second portion; and a second electrode under the first portion and the second portion. ### Claim 8 (depends on 4) The display apparatus of claim 4, wherein each of the plurality of vibration modules comprises: a first electrode on the first portion and the second portion; a second electrode under the first portion and the second portion; a first protection layer on the first electrode; and a second protection layer under the second electrode. ### Claim 9 (depends on 2) The display apparatus of claim 2, wherein the pad member comprises an adhesive. ### Claim 10 (depends on 2) The display apparatus of claim 2, wherein the pad member comprises the same material as a material of each of the plurality of vibration modules. ### Claim 11 (depends on 1) The display apparatus of claim 1, further comprising: an adhesive member, by which the vibration device is attached to the rear surface of the display panel, wherein the adhesive member includes a hollow portion between the display panel and the vibration device for providing an air gap between the display panel and the vibration device. ### Claim 12 (depends on 1) The display apparatus of claim 1, wherein the first portion has a line pattern having a predetermined first width and the second portion has a line pattern having a predetermined second width, the first width is equal to or different from the second width. ### Claim 13 (depends on 12) The display apparatus of claim 12, wherein the second portion has a modulus and viscoelasticity that are lower than those of the first portion. ### Claim 14 (depends on 13) The display apparatus of claim 13, wherein the second portion includes a material having a loss coefficient of 0.01 to about 1.0 and a modulus of 1 to 10 Gpa. ### Claim 15 (depends on 1) The display apparatus of claim 1, wherein a width of the second portion progressively decreases in a direction from a center portion to both peripheries of the vibration device. ### Claim 16 (depends on 1) The display apparatus of claim 1, wherein the first portion has a circular shape and the second portion surrounds the first portion. ### Claim 17 A display apparatus, comprising: a display panel configured to display an image and including a first region and a second region; a first vibration array in the first region, the first vibration array including a plurality of first vibration modules; and a second vibration array in the second region, the second vibration array including a plurality of second vibration modules. ### Claim 18 (depends on 17) The display apparatus of claim 17, further comprising: a first pad member between the plurality of first vibration modules; and a second pad member between the plurality of second vibration modules. ### Claim 19 (depends on 17) The display apparatus of claim 17, wherein: the first vibration array comprises a 1-1th vibration array and a 1-2th vibration array, and the 1-1th vibration array and the 1-2th vibration array are alternately disposed. ### Claim 20 (depends on 17) The display apparatus of claim 17, wherein: the second vibration array comprises a 2-1th vibration array and a 2-2th vibration array, and the 2-1th vibration array and the 2-2th vibration array are alternately disposed. ### Claim 21 (depends on 17) The display apparatus of claim 17, wherein: the first vibration array comprises a 1-1th vibration array and a 1-2th vibration array, the second vibration array comprises a 2-1th vibration array and a 2-2th vibration array, and the 1-2th vibration array and the 2-2th vibration array are disposed between the 1-1th vibration array and the 2-1th vibration array. ### Claim 22 (depends on 17) The display apparatus of claim 17, wherein: the first vibration array comprises a 1-1th vibration array and a 1-2th vibration array, and the 1-1th vibration array and the 1-2th vibration array are disposed in a lengthwise direction of the display panel. ### Claim 23 (depends on 17) The display apparatus of claim 17, wherein: the first vibration array comprises a 1-1th vibration array and a 1-2th vibration array, the second vibration array comprises a 2-1th vibration array and a 2-2th vibration array, the 1-1th vibration array and the 1-2th vibration array are disposed in a lengthwise direction of the display panel, and the 2-1th vibration array and the 2-2th vibration array are disposed in the lengthwise direction of the display panel. ### Claim 24 (depends on 17) The display apparatus of claim 17, wherein: the first vibration array comprises a 1-1th vibration array and a 1-2th vibration array, the 1-1th vibration array comprises the plurality of first vibration modules, the 1-2th vibration array comprises a plurality of third vibration modules, and each of the plurality of first vibration modules and the plurality of third vibration modules comprises one composite including a plurality of first portions and a plurality of second portions between the plurality of first portions. ### Claim 25 (depends on 24) The display apparatus of claim 24, wherein an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions in the plurality of first vibration modules differ from an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions in the plurality of third vibration modules. ### Claim 26 (depends on 24) The display apparatus of claim 24, wherein, in each of the plurality of first vibration modules and the plurality of third vibration modules, an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions are the same as a widthwise direction or a lengthwise direction of the display panel. ### Claim 27 (depends on 17) The display apparatus of claim 17, wherein: the second vibration array comprises a 2-1th vibration array and a 2-2th vibration array, the 2-1th vibration array comprises the plurality of second vibration modules, the 2-2th vibration array comprises a plurality of fourth vibration modules, and each of the plurality of second vibration modules and the plurality of fourth vibration modules comprises one composite including a plurality of first portions and a plurality of second portions between the plurality of first portions. ### Claim 28 (depends on 27) The display apparatus of claim 27, wherein an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions in the plurality of second vibration modules differ from an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions in the plurality of fourth vibration modules. ### Claim 29 (depends on 27) The display apparatus of claim 27, wherein, in each of the plurality of second vibration modules and the plurality of fourth vibration modules, an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions are the same as a widthwise direction or a lengthwise direction of the display panel. ### Claim 30 (depends on 17) The display apparatus of claim 17, wherein each of the plurality of first vibration modules and the plurality of second vibration modules comprises one composite including a plurality of first portions and a plurality of second portions between the plurality of first portions. ### Claim 31 (depends on 30) The display apparatus of claim 30, wherein an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions in the plurality of first vibration modules differ from an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions in the plurality of second vibration modules. ### Claim 32 (depends on 30) The display apparatus of claim 30, wherein an arrangement direction of the plurality of first portions and an arrangement direction of the plurality of second portions in each of the plurality of first vibration modules and the plurality of second vibration modules are the same as a widthwise direction or a lengthwise direction of the display panel. ### Claim 33 (depends on 30) The display apparatus of claim 30, wherein each of the plurality of first vibration modules and the plurality of second vibration modules comprises: a first electrode on the plurality of first portions and the plurality of second portions; and a second electrode under the plurality of first portions and the plurality of second portions. ### Claim 34 (depends on 30) The display apparatus of claim 30, wherein each of the plurality of first vibration modules and the plurality of second vibration modules comprises: a first electrode on the plurality of first portions and the plurality of second portions; a second electrode under the plurality of first portions and the plurality of second portions; a first protection layer on the first electrode; and a second protection layer under the second electrode. ### Claim 35 (depends on 17) The display apparatus of claim 17, further comprising: a first partition member surrounding the first vibration array; and a second partition member surrounding the second vibration array. ### Claim 36 (depends on 17) The display apparatus of claim 17, further comprising: a first partition member surrounding the first vibration array; a second partition member surrounding the second vibration array; and a third partition member surrounding the first partition member and the second partition member. ### Claim 37 (depends on 17) The display apparatus of claim 17, further comprising: a first partition member surrounding the first vibration array; a second partition member surrounding the second vibration array; and one or more fourth partition members between the first region and the second region. ### Claim 38 (depends on 17) The display apparatus of claim 17, further comprising: a first partition member surrounding the first vibration array; a second partition member surrounding the second vibration array; a third partition member surrounding the first partition member and the second partition member; and one or more fourth partition members between the first region and the second region. ### Claim 39 (depends on 18) The display apparatus of claim 18, wherein each of the first pad member and the second pad member comprise an adhesive. ### Claim 40 (depends on 18) The display apparatus of claim 18, wherein the first pad member and the second pad member comprise the same material as a material of one of the plurality of first vibration modules and the plurality of second vibration modules. ### Claim 41 (depends on 24) The display apparatus of claim 24, wherein each of the plurality of first portions has a line pattern having a predetermined first width and each of the plurality of second portions has a line pattern having a predetermined second width, the first width is equal to or different from the second width. ### Claim 42 (depends on 24) The display apparatus of claim 24, wherein each of the plurality of second portions has a modulus and viscoelasticity that are lower than those of each of the plurality of first portions. ### Claim 43 (depends on 42) The display apparatus of claim 42, wherein each of the plurality of second portions includes a material having a loss coefficient of 0.01 to about 1.0 and a modulus of 1 to 10 GPa. ### Claim 44 (depends on 24) The display apparatus of claim 24, wherein a width of the plurality of second portions progressively decreases in a direction from a center portion to both peripheries of the first vibration array or the second vibration array.