# US 12,003,905 B2 · Display apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,003,905 B2 - Document ID: US12003905B2 - Status: Granted - Kind: B2 - Application number: 18/327,823 - Filed: 2023-06-01 - Published: 2023-09-28 - Granted: 2024-06-04 - Earliest claimed: 2020-07-21 - Assignees: LG Display Co., Ltd. - Applicants: LG Display Co., Ltd. - Inventors: Taehyung Kim; JaiHyuk Lee; GyungBo Ha; HakMo Hwang; SunBok Song - Web page: https://patentgrep.com/patent/US12003905B2 ## 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 1/24: Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges - 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 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 17/10: Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency - H05K 1/028: {Bending or folding regions of flexible printed circuits (H05K1/0283 takes precedence)} - H05K 1/147: {at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit (H05K1/148 takes precedence)} - H04R 2201/025: Transducer mountings or cabinet supports enabling variable orientation of transducer of cabinet - H04R 2499/15: Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops - H04S 3/008: {in which the audio signals are in digital form, i.e. employing more than two discrete digital channels (data reduction aspects thereof based on psychoacoustics G10L19/02)} - H05K 2201/10128: Display - 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) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - H04S: STEREOPHONIC SYSTEMS ## Abstract A display apparatus includes a display panel configured to display an image, a circuit part including a printed circuit board disposed spaced apart from a first portion of the display panel and connected to the display panel, a first vibration device disposed at a rear surface of the display panel, and a second vibration device disposed at a rear surface of the printed circuit board. ## Claims ### Claim 1 A display apparatus, comprising: a display panel configured to display an image; a circuit part including a printed circuit board connected to the display panel; a first vibration device disposed at the rear surface of the display panel; a second vibration device disposed at a rear surface of the printed circuit board; and a first member configured to accommodate the display panel and the circuit part, wherein the printed circuit board is disposed at a distance from a side of the display panel and without being disposed at a rear surface of the display panel, wherein the first member comprises a first structure disposed at the rear surface of the display panel and a rear surface of the circuit part, and wherein the first structure comprises: a first portion disposed to correspond to the display panel; and a second portion disposed at an angle with respect to the first portion to correspond to the printed circuit board. ### Claim 2 (depends on 1) The display apparatus of claim 1, further comprising a second member disposed to cover one or more peripheries of a front surface of the display panel and an upper portion of the first member. ### Claim 3 (depends on 1) The display apparatus of claim 1, wherein: the first vibration device is configured to vibrate the display panel to generate a first sound; and the second vibration device is configured to vibrate the printed circuit board to generate a second sound. ### Claim 4 (depends on 3) The display apparatus of claim 3, wherein the second sound has a frequency of a pitched sound band which differs from that of the first sound. ### Claim 5 (depends on 3) The display apparatus of claim 3, wherein the second sound has a frequency of a pitched sound band which is same as that of the first sound. ### Claim 6 (depends on 3) The display apparatus of claim 3, wherein: the first sound is configured to output in a forward direction of the display panel; and the second sound is configured to output in a forward-upward direction of the display panel. ### Claim 7 (depends on 1) The display apparatus of claim 1, wherein the printed circuit board is disposed at an angle with respect to the display panel. ### Claim 8 (depends on 7) The display apparatus of claim 7, wherein: the printed circuit board are provided in plurality, and the plurality of printed circuit boards are arranged at a certain interval along one side of the display panel; and the plurality of printed circuit boards are disposed toward a forward-upward direction of the display panel at a same angle, or are disposed toward the forward-upward direction of the display panel at different angles. ### Claim 9 (depends on 7) The display apparatus of claim 7, wherein: the display panel comprises a pad part disposed at one periphery portion; and the circuit part further comprises at least one or more flexible circuit films connected between one side of the printed circuit board and the pad part. ### Claim 10 (depends on 1) The display apparatus of claim 1, wherein the second portion extends from the first portion and is bent in a forward-upward direction of the display panel. ### Claim 11 (depends on 2) The display apparatus of claim 2, further comprising a hinge portion disposed between the first portion and the second portion, wherein each of one side of the first portion and one side of the second portion is connected to the hinge portion, and the second portion is rotatable in a forward-upward direction of the display panel with respect to the hinge portion. ### Claim 12 (depends on 11) The display apparatus of claim 11, wherein a region of the second member overlapping the display panel is spaced apart from the display panel. ### Claim 13 (depends on 11) The display apparatus of claim 11, wherein a region of the second member overlapping the display panel is spaced apart from the display panel with a height. ### Claim 14 (depends on 11) The display apparatus of claim 11, further comprising a third member disposed at a front surface of the display panel, wherein a region of the second member overlapping the third member is spaced apart from the third member. ### Claim 15 (depends on 11) The display apparatus of claim 11, further comprising a third member disposed at a front surface of the display panel, wherein a region of the second member overlapping the third member is spaced apart from the third member with a height configured to prevent the third member from contacting the first member when the second portion is rotating. ### Claim 16 (depends on 1) The display apparatus of claim 1, wherein the first member comprises a groove configured to accommodate each of the first and second vibration devices. ### Claim 17 (depends on 1) The display apparatus of claim 1, further comprising a plate disposed at the printed circuit board, wherein the plate is disposed at a region other than a mount region and a vibration device disposition region. ### Claim 18 (depends on 1) The display apparatus of claim 1, further comprising a first pattern disposed at the printed circuit board, wherein the first pattern comprises at least one or more of grooves, holes, and protrusions. ### Claim 19 (depends on 18) The display apparatus of claim 18, wherein the first pattern is disposed to surround the second vibration device. ### Claim 20 (depends on 18) The display apparatus of claim 18, wherein the first pattern comprises different shapes of at least two or more among the one or more of grooves, holes, and protrusions. ### Claim 21 (depends on 1) The display apparatus of claim 1, wherein: each of the first vibration device and the second vibration device comprises a piezoelectric vibration portion; and the piezoelectric vibration portion comprises: a plurality of inorganic material portions having a piezoelectric characteristic; and an organic material portion between the plurality of inorganic material portions. ### Claim 22 (depends on 21) The display apparatus of claim 21, wherein the organic material portion is provided in plurality, and the plurality of organic material portions and the plurality of inorganic material portions are alternately and repeatedly arranged. ### Claim 23 (depends on 22) The display apparatus of claim 22, wherein a width of each of the plurality of organic material portions progressively decrease in a direction from a center portion to both peripheries of the piezoelectric vibration portion. ### Claim 24 (depends on 1) The display apparatus of claim 1, further comprising a third vibration device and a fourth vibration device, wherein the printed circuit board comprises: a first printed circuit board including a first periphery connected to the display panel; a second printed circuit board connected to a first portion of the first printed circuit board by a first connection member; and a third printed circuit board connected to a second portion of the first printed circuit board by a second connection member, and wherein the third vibration device is disposed at the second printed circuit board and the fourth vibration device is disposed at the third printed circuit board. ### Claim 25 (depends on 24) The display apparatus of claim 24, wherein the first connection member and the second connection member are bent to a front surface and a rear surface of the first printed circuit board. ### Claim 26 (depends on 24) The display apparatus of claim 24, wherein the second printed circuit board and the third printed circuit board are disposed toward a left-forward direction of the display panel or a right-forward direction of the display panel. ### Claim 27 (depends on 24) The display apparatus of claim 24, wherein: the first printed circuit board is provided in plurality, and the plurality of first printed circuit boards are arranged at a certain interval along one side of the display panel; and the second printed circuit board and the third printed circuit board are respectively disposed at first printed circuit boards disposed at both sides among the plurality of first printed circuit boards. ### Claim 28 (depends on 27) The display apparatus of claim 27, wherein: the second printed circuit board is disposed at a left side of a first printed circuit board disposed at a left side among the plurality of first printed circuit boards with respect to a forward direction of the display panel; and the third printed circuit board is disposed at a right side of the first printed circuit board disposed at a right side among the plurality of first printed circuit boards. ### Claim 29 (depends on 24) The display apparatus of claim 24, wherein: each of the third vibration device and the fourth vibration device comprises a piezoelectric vibration portion; and the piezoelectric vibration portion comprises: a plurality of inorganic material portions having a piezoelectric characteristic; and an organic material portion between the plurality of inorganic material portions. ### Claim 30 (depends on 1) The display apparatus of claim 1, further comprising: a fourth member disposed at a rear surface of the printed circuit board; and a fifth member disposed at a rear surface of the fourth member, wherein the second vibration device is disposed at the fifth member. ### Claim 31 (depends on 30) The display apparatus of claim 30, wherein: the printed circuit board is configured to vibrate based on a vibration of the second vibration device to generate a sound; and the vibration of the second vibration device is transferred to the printed circuit board along the fourth member and the fifth member. ### Claim 32 (depends on 30) The display apparatus of claim 30, wherein the fourth member comprises: a first region at a rear surface of the printed circuit board; and a second region extending from the first region, the fifth member being disposed at the second region. ### Claim 33 (depends on 32) The display apparatus of claim 32, wherein the fifth member comprises: a first part disposed at a rear surface of the first region of the fourth member; a second part disposed at a rear surface of the second region of the fourth member; and a third part between the first part and the second part, the second vibration device being disposed at the third part. ### Claim 34 (depends on 33) The display apparatus of claim 33, wherein the third part has a curvature and the third part is concave toward the fourth member. ### Claim 35 (depends on 34) The display apparatus of claim 34, wherein the second vibration device is disposed to have a shape corresponding to that of the third part. ### Claim 36 (depends on 33) The display apparatus of claim 33, wherein the third part is configured to vibrate based on a vibration of the second vibration device to generate a sound. ### Claim 37 (depends on 33) The display apparatus of claim 33, wherein the third part further comprises a second pattern. ### Claim 38 (depends on 37) The display apparatus of claim 37, wherein the second pattern comprises a plurality of grooves arranged to have a line shape, a stripe shape, or a diagonal shape. ### Claim 39 (depends on 37) The display apparatus of claim 37, wherein: the second pattern comprises a plurality of groups; and one or more of a depth, a width, and an interval of a second pattern included in one group among the plurality of groups are same, and one or more of depths, widths, and intervals of second patterns included in different groups among the plurality of groups are differ.