# US 11,445,278 B2 · Display panel buffering structure, display screen module and manufacturing method therefor, and terminal device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,278 B2 - Document ID: US11445278B2 - Status: Granted - Kind: B2 - Application number: 17/264,481 - Filed: 2020-05-29 - Published: 2021-10-14 - Granted: 2022-09-13 - Earliest claimed: 2019-05-30 - Assignees: Chengdu Boe Optoelectronics Technology Co., Ltd.; Beijing BOE Technology Development Co., Ltd. - Applicants: Chengdu BOE Optoelectronics Technology Co., Ltd.; BOE Technology Group Co., Ltd. - Inventors: Fengxian Wang; Qiang Tang - Web page: https://patentgrep.com/patent/US11445278B2 ## CPC - H05K 7/20963: {Heat transfer by conduction from internal heat source to heat radiating structure (H05K7/20972 takes precedence)} - G09F 9/00: Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements (in which the variable information is permanently attached to a movable support G09F11/00; abacus G06C1/00; slide-rules G06G1/00) - H04M 1/02: Constructional features of telephone sets - 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 7/10: comprising superposed layers in contact - H04R 2499/15: Transducers incorporated in visual displaying devices, e.g. televisions, computer displays, laptops - H10K 59/8794: {Arrangements for heating and cooling} - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS - G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS - H04M: TELEPHONIC COMMUNICATION (circuits for controlling other apparatus via a telephone cable and not involving telephone switching apparatus G08) - 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) - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display panel buffering structure, a display screen module and a preparing method therefor, and a terminal device are provided. The display panel buffering structure is arranged on the side face, facing away from a light-emitting side, of a display panel, and comprises: a buffering film provided with a hollow structure for accommodating an exciter; and a first light shielding film attached to a first side face, facing the display panel, of the buffering film. An orthographic projection of the first light shielding film on a plane where the first side face is located covers an orthographic projection of the hollow structure on the plane where the first side face is located, and a portion, opposite to the hollow structure, of the first light shielding film is fixed with the exciter. ## Claims ### Claim 1 A display screen module, comprising: a display panel; an exciter; and a display panel buffering structure; wherein the display panel buffering structure is arranged on a side face, facing away from a light-emitting side, of the display panel, and comprises: a buffering film provided with a hollow structure for accommodating the exciter; a first light shielding film attached to a first side face, facing the display panel, of the buffering film; and a second light shielding film arranged on a second side face, opposite to the first side face, of the buffering film; wherein an orthographic projection of the first light shielding film on a plane where the first side face is located covers an orthographic projection of the hollow structure on the plane where the first side face is located; a portion, arranged opposite to the hollow structure, of the first light shielding film is fixed with the exciter; the exciter is arranged in the hollow structure and fixed with the first light shielding film; and an orthographic projection of the second light shielding film on the plane where the second side face is located is not overlapped with an orthographic projection of the hollow structure on the plane where the second side face is located. ### Claim 2 (depends on 1) The display screen module according to claim 1, wherein the display panel buffering structure further comprises: a first heat dissipation film; wherein the first heat dissipation film is arranged: between the first light shielding film and the buffering film; or on a side face, facing away from the buffering film, of the first light shielding film. ### Claim 3 (depends on 1) The display screen module according to claim 1, wherein the display panel buffering structure further comprises: a second heat dissipation film; wherein the second heat dissipation film is arranged on the second side face, opposite to the first side face, of the buffering film; and an orthographic projection of the second heat dissipation film on a plane where the second side face is located is not overlapped with an orthographic projection of the hollow structure on the plane where the second side face is located. ### Claim 4 (depends on 2) The display screen module according to claim 2, wherein a material of the first heat dissipation film comprises a copper foil, a silver foil, an aluminum foil and a graphene film. ### Claim 5 (depends on 1) The display screen module according to claim 1, wherein a grid-shaped protrusion structure is arranged on a side face, connected to the display panel, of the first light shielding film. ### Claim 6 (depends on 5) The display screen module according to claim 5, wherein the first light shielding film comprises a grid adhesive. ### Claim 7 (depends on 1) The display screen module according to claim 1, wherein a heat dissipation adhesive is filled between the exciter and a side wall of the hollow structure. ### Claim 8 (depends on 1) The display screen module according to claim 1, wherein a distance from a central point of an orthographic projection of the hollow structure on the display panel to any one edge of the display panel is greater than or equal to about 5 mm. ### Claim 9 (depends on 8) The display screen module according to claim 8, wherein the display panel comprises a top edge and a bottom edge which are oppositely arranged; a distance from the central point of the orthographic projection of the hollow structure on the display panel to the top edge of the display panel is about 5 mm to 25 mm; and a distance, along a direction parallel to the top edge, from the central point of the orthographic projection of the hollow structure on the display panel to a midperpendicular of the top edge is about 0 mm to 20 mm. ### Claim 10 (depends on 9) The display screen module according to claim 9, wherein the distance from the central point of the orthographic projection of the hollow structure on the display panel to the top edge of the display panel is about 5 mm; and the orthographic projection of the hollow structure on the display panel is located at the midperpendicular of the display panel. ### Claim 11 (depends on 1) A method for preparing the display screen module according to claim 1, at least comprising: attaching the display panel buffering structure to the side face, facing away from the light-emitting side, of the display panel; fixing the exciter in the hollow structure; and fixing the exciter with the first light shielding film. ### Claim 12 (depends on 11) The method for preparing the display screen module according to claim 11, further comprising: filling a heat dissipation adhesive between the exciter and a side wall of the hollow structure. ### Claim 13 (depends on 1) A terminal device, comprising the display screen module according to claim 1. ### Claim 14 A display panel buffering structure, arranged on a side face, facing away from a light-emitting side, of a display panel, and comprising: a buffering film, provided with a hollow structure for accommodating an exciter; and a first light shielding film attached to a first side face, facing the display panel, of the buffering film; and a second light shielding film arranged on a second side face, opposite to the first side face, of the buffering film; wherein an orthographic projection of the first light shielding film on a plane where the first side face is located covers an orthographic projection of the hollow structure on the plane where the first side face is located; a portion, arranged opposite to the hollow structure, of the first light shielding film is fixed with the exciter; and an orthographic projection of the second light shielding film on the plane where the second side face is located is not overlapped with an orthographic projection of the hollow structure on the plane where the second side face is located. ### Claim 15 (depends on 14) The display panel buffering structure according to claim 14, further comprising: a first heat dissipation film; wherein the first heat dissipation film is arranged: between the first light shielding film and the buffering film; or on a side face, facing away from the buffering film, of the first light shielding film. ### Claim 16 (depends on 14) The display panel buffering structure according to claim 14, further comprising: a second heat dissipation film; wherein the second heat dissipation film is arranged on the second side face, opposite to the first side face, of the buffering film; and an orthographic projection of the second heat dissipation film on a plane where the second side face is located is not overlapped with an orthographic projection of the hollow structure on the plane where the second side face is located. ### Claim 17 (depends on 14) The display panel buffering structure according to claim 14, wherein a grid-shaped protrusion structure is arranged on a side face, connected to the display panel, of the first light shielding film. ### Claim 18 (depends on 14) The display panel buffering structure according to claim 14, wherein the first light shielding film comprises a grid adhesive. ### Claim 19 (depends on 3) The display screen module according to claim 3, wherein a material of the second heat dissipation film comprises a copper foil, a silver foil, an aluminum foil and a graphene film. ### Claim 20 A display screen module, comprising: a display panel; an exciter; and a display panel buffering structure; wherein the display panel buffering structure is arranged on a side face, facing away from a light-emitting side, of the display panel, and comprises: a buffering film provided with a hollow structure for accommodating the exciter; and a first light shielding film attached to a first side face, facing the display panel, of the buffering film; wherein an orthographic projection of the first light shielding film on a plane where the first side face is located covers an orthographic projection of the hollow structure on the plane where the first side face is located; a portion, arranged opposite to the hollow structure, of the first light shielding film is fixed with the exciter; the exciter is arranged in the hollow structure and fixed with the first light shielding film and a heat dissipation adhesive is filled between the exciter and a side wall of the hollow structure.