# US 11,079,792 B2 · Display panel, bracket and display device including the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,079,792 B2 - Document ID: US11079792B2 - Status: Granted - Kind: B2 - Application number: 16/888,259 - Filed: 2020-05-29 - Published: 2020-09-17 - Granted: 2021-08-03 - Earliest claimed: 2017-08-10 - Assignees: Samsung Display Co., Ltd. - Applicants: Samsung Display Co., Ltd. - Inventors: Yi Joon Ahn; Sung Chul Kim; Jung Hun Noh; Keun Kyu Song; Hye Yong Chu - Web page: https://patentgrep.com/patent/US11079792B2 ## CPC - G06F 1/1605: {Multimedia displays, e.g. with integrated or attached speakers, cameras, microphones} - G06F 1/1626: {with a single-body enclosure integrating a flat display, e.g. Personal Digital Assistants [PDAs]} - G06F 1/1652: {the display being flexible, e.g. mimicking a sheet of paper, or rollable} - H04N 5/642: {Disposition of sound reproducers} - H04R 1/025: {Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture} - 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 9/06: Loudspeakers - G02F 1/133308: {Support structures for LCD panels, e.g. frames or bezels} - G02F 1/133314: {Back frames} - H04R 2440/07: Loudspeakers using bending wave resonance and pistonic motion to generate sound - H04R 2499/15: Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops - G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION - 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) - G02F: OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS ## Abstract A display device incudes: a display panel; a plurality of vibro-acoustic elements coupled to the display panel and spaced apart from each other on a lower surface of the display panel; and a bracket disposed below the display panel and including a bottom plate, where a plurality of receiving holes is defined through the bottom plate. The plurality of vibro-acoustic elements is disposed in the plurality of receiving holes, respectively, a vibration space is defined by a portion of the bottom plate defining a receiving hole of the receiving holes, which is recessed from an upper surface toward a lower surface of the bottom plate, and audio frequencies in different frequency bands, respectively, is produced from regions in which the plurality of vibro-acoustic elements are disposed. ## Claims ### Claim 1 A display device comprising: a display panel; a plurality of vibro-acoustic elements coupled to the display panel and spaced apart from each other on a lower surface of the display panel; and a bracket disposed below the display panel, the bracket including a bottom plate, wherein the bottom plate defines a plurality of openings, and the plurality of vibro-acoustic elements is exposed through the plurality of openings, respectively, wherein a first vibro-acoustic element of the plurality of vibro-acoustic elements is disposed in a first opening of the plurality of openings, and wherein the first vibro-acoustic element does not contact the bracket. ### Claim 2 (depends on 1) The display device of claim 1, wherein a portion of the bottom plate defining an opening of the plurality of openings is recessed from an upper surface toward a lower surface of the bottom plate, and wherein a vibration space is defined by the portion of the bottom plate recessed from the upper surface toward the lower surface of the bottom plate. ### Claim 3 (depends on 1) The display device of claim 1, wherein audio frequencies in different frequency bands, respectively, are produced from regions in which the plurality of vibro-acoustic elements is disposed. ### Claim 4 (depends on 3) The display device of claim 3, wherein the plurality of vibro-acoustic elements has different sizes from each other to produce the audio frequencies in the different frequency bands, respectively. ### Claim 5 (depends on 1) The display device of claim 1, wherein at least one of the plurality of vibro-acoustic elements comprises a coil disposed on the lower surface of the display panel. ### Claim 6 (depends on 1) The display device of claim 1, wherein a vibro-acoustic element of the plurality of vibro-acoustic elements has a shape including at least a part of a frame shape in a plan view with an opening defined therein. ### Claim 7 (depends on 1) The display device of claim 1, wherein a size of a vibro-acoustic element of the plurality of vibro-acoustic elements is smaller than a size of an opening of the plurality of openings through which the vibro-acoustic element is exposed in a plan view. ### Claim 8 A display device comprising: a display panel; a plurality of vibro-acoustic elements coupled to the display panel and spaced apart from each other on a lower surface of the display panel; and a bracket disposed below the display panel, the bracket including a bottom plate, wherein the bottom plate defines a plurality of openings, and the plurality of vibro-acoustic elements is exposed through the plurality of openings, respectively, wherein at least one of the plurality of vibro-acoustic elements comprises a coil disposed on the lower surface of the display panel, and wherein the at least one of the plurality of vibro-acoustic elements further comprises a piezoelectric element disposed on the coil. ### Claim 9 A display device comprising: a display panel; a plurality of vibro-acoustic elements coupled to the display panel and spaced apart from each other on a lower surface of the display panel; and a bracket disposed below the display panel, the bracket including a bottom plate and a plurality of receiving holes which penetrates the bottom plate, wherein the plurality of vibro-acoustic elements is disposed in the plurality of receiving holes, respectively, wherein a battery receiving hole is defined through the bottom plate, and wherein the battery receiving hole is spaced apart from the plurality of receiving holes. ### Claim 10 (depends on 9) The display device of claim 9, wherein a first portion of the bottom plate defining a receiving hole of the plurality of receiving holes is recessed from an upper surface toward a lower surface of the bottom plate, and wherein a second portion of the bottom plate defining the battery receiving hole is not recessed. ### Claim 11 A display device comprising: a display panel; a vibro-acoustic element coupled to the display panel; and a bracket disposed below the display panel, the bracket including a bottom plate, wherein the bottom plate defines an opening, wherein the vibro-acoustic element is exposed through the opening, wherein a size of the vibro-acoustic element is smaller than a size of opening in a plan view, wherein the vibro-acoustic element is disposed in the opening, and wherein the vibro-acoustic element does not contact the bracket. ### Claim 12 (depends on 11) The display device of claim 11, wherein the vibro-acoustic element comprises a coil disposed on the lower surface of the display panel. ### Claim 13 (depends on 12) The display device of claim 12, wherein the vibro-acoustic element further comprises a piezoelectric element disposed on the coil. ### Claim 14 (depends on 11) The display device of claim 11, further comprising: a vibration reinforcing member disposed between the display panel and the vibro-acoustic element; wherein the vibration reinforcing member is coupled to the display panel and the vibro-acoustic element. ### Claim 15 (depends on 11) The display device of claim 11, wherein the display panel is a diaphragm, such that at least a part of the display panel outputs sound in response to a vibration of the vibro-acoustic element. ### Claim 16 (depends on 11) The display device of claim 11, wherein the display panel comprises a display area and a non-display area, and wherein the vibro-acoustic element and the receiving hole overlap the display area of the display panel. ### Claim 17 A display device comprising: a display panel; a vibro-acoustic element disposed below a lower surface of the display panel; and a bracket disposed below the vibro-acoustic element and which defines a vibration space and a receiving hole, wherein the vibro-acoustic element is coupled to the display panel, wherein a width of the vibration space is wider than a width of the receiving hole accommodate the vibro-acoustic element therein, and wherein the vibration space is disposed closer to the display panel than the receiving hole. ### Claim 18 A display device comprising: a display panel; a vibro-acoustic element disposed below a lower surface of the display panel; and a bracket disposed below the vibro-acoustic element, wherein the vibro-acoustic element comprises a coil disposed on the lower surface of the display panel and a piezoelectric element overlapping the coil, and wherein the piezoelectric element includes a first electrode, a second electrode and a vibration material layer disposed between the first electrode and the second electrode. ### Claim 19 (depends on 18) The display device of claim 18, wherein the display panel comprises a display area and a non-display area, and wherein the coil and the piezoelectric element overlap the display area of the display panel.