WO2021249093A1 - 一种曲面显示模组和曲面显示装置 - Google Patents

一种曲面显示模组和曲面显示装置 Download PDF

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Publication number
WO2021249093A1
WO2021249093A1 PCT/CN2021/093328 CN2021093328W WO2021249093A1 WO 2021249093 A1 WO2021249093 A1 WO 2021249093A1 CN 2021093328 W CN2021093328 W CN 2021093328W WO 2021249093 A1 WO2021249093 A1 WO 2021249093A1
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WO
WIPO (PCT)
Prior art keywords
xpcb
display module
curved display
sub
frame
Prior art date
Application number
PCT/CN2021/093328
Other languages
English (en)
French (fr)
Inventor
李会艳
王伯长
张宇
耿仕新
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US17/923,186 priority Critical patent/US11982891B2/en
Publication of WO2021249093A1 publication Critical patent/WO2021249093A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/13332—Front frames
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • G—PHYSICS
    • G02—OPTICS
    • 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
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133325—Assembling processes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10128—Display
    • H05K2201/10136—Liquid Crystal display [LCD]

Definitions

  • This application relates to the technical field of curved surface display, in particular to a curved surface display module and a curved surface display device.
  • the curvature control scheme for large-scale curved surface OC is minimal, and there is no clear technical architecture and scheme.
  • the only patent CN107813136A (a kind of OLED curved TV production process) for curved surface measurement jigs only introduces the assembly process of curved TVs in general, and does not give any explanation on how to control the OC curvature.
  • the curvature control of OC directly affects the function realization and display effect of the module. Effective control of OC curvature (panel curvature, COF curvature and XPCB board curvature) is particularly important for module quality control. Therefore, this patent focuses on large-scale curved surfaces. OC's curvature control design framework and its scheme.
  • the present application discloses a curved surface display module and a curved surface display device, and aims to provide a module design framework that can improve the curvature control effect of the curved surface display module.
  • a curved display module that can be bent along the long side direction;
  • the curved display module includes a display panel, a backlight module, a front frame, a backplane, XPCB, and FPC; the front frame and the backplane cooperate to Assemble the display panel and the backlight module;
  • the FPC is disposed at the edge of the first long side of the display panel, and is configured to connect the binding area of the edge of the first long side of the display panel with the XPCB;
  • the first long side edge of the backplane is stepped, and includes a back surface, an inclined surface, and a stepped surface that are sequentially connected from a direction away from the first long side edge to close to the first long side edge;
  • the XPCB is arranged on the stepped surface of the backplane, and includes at least two sections of independent sub XPCBs arranged along the extending direction of the first long side, and each section of the sub XPCB extends along the first long side and passes through the independent XPCB.
  • the connecting piece is fixed to the backplane.
  • the connector includes a fastener and a screw; the fastener is configured to connect the sub XPCB and the backplane; the screw is configured to connect the sub XPCB and Lock between the backplanes.
  • each section of the sub XPCB is connected to the backplane through a plurality of the fasteners, and the plurality of fasteners are arranged in sequence along the extension direction of the sub XPCB.
  • each sub-XPCB is connected to the binding area of the display panel through a plurality of the FPCs; the plurality of fasteners are arranged at intervals between the plurality of FPCs.
  • both ends of each section of XPCB are locked on the stepped surface of the backplane by the screws.
  • the step surface of the back plate is provided with a first bayonet
  • the buckle includes a clamping portion and a clamping portion; the clamping portion is a semi-closed or open frame structure configured to clamp and limit the sub XPCB; the clamping portion and the The clamping parts are connected and configured to be clamped in the first bayonet on the stepped surface of the back plate.
  • the engaging portion is a claw hook type buckle or a round table type buckle.
  • the buckle includes a clamping part and a double-sided tape;
  • the clamping part is a semi-closed or open frame structure configured to clamp and limit the sub-XPCB;
  • the double-sided tape is arranged on a surface of the clamping part facing away from the sub XPCB, and is configured to be pasted on the step surface of the back plate.
  • the curved display module further includes a cover plate corresponding to the sub XPCB one-to-one; the cover plate is in a strip shape matching the shape of the sub XPCB and is configured to cover the corresponding XPCB
  • the sub XPCB is fixedly connected to the backplane.
  • the front frame includes a front frame and a side frame, and the side frame wraps the outer side of the folded edge of the back panel and is fixedly connected to the folded edge of the back panel;
  • a section of the side frame provided on one long side is provided with a second bayonet;
  • a hook portion is provided on one side edge of the cover plate close to the side frame, and the hook portion is engaged with a second bayonet on the side frame.
  • the cover plate is provided with a first locking nail portion on a side edge away from the side frame. connect.
  • both ends of the cover plate are provided with second locking nail portions, and the second locking nail portions are provided on the stepped surface of the back plate and connected to the stepped surface by screws;
  • the second locking hole provided on the second locking nail portion is a waist-shaped hole extending along the extending direction of the first long side.
  • the sub XPCB is provided with a third locking nail hole corresponding to the position of the second locking nail hole; the third locking nail hole is a waist-shaped hole extending along the extending direction of the first long side ; The screw connecting the second locking nail portion and the stepped surface of the back plate penetrates the third locking nail hole.
  • the cover plate includes a plurality of hook parts and a plurality of first locking nail parts; the plurality of hook parts are arranged in sequence along a side edge of the cover plate close to the side frame; A plurality of first locking nail portions are arranged in sequence along a side edge of the cover plate away from the side frame.
  • the XPCB includes two sections of the sub-XPCB
  • the curved display module includes two cover plates corresponding to the two sections of the sub-XPCB one-to-one.
  • the curved display module further includes a glue frame.
  • the glue frame includes a mullion used to limit the sides of the display panel, and a mullion that protrudes into the frame relative to the mullion. On the carrying part carrying the back edge of the display panel;
  • the front frame includes a front frame and a side frame, and the front frame is used to limit the front edge of the display panel;
  • the curved display module also includes a first foam located between the front frame and the front edge of the display panel, and a second foam located between the carrying portion of the plastic frame and the back edge of the display panel. Cotton, and a silicone pad between the mullion of the plastic frame and the side of the display panel.
  • a curved display device includes the curved display module as described in any one of the above.
  • FIG. 1 is a schematic diagram of a three-dimensional structure of a curved display module provided by an embodiment of the application;
  • FIG. 2 is a schematic diagram of an exploded structure of a curved display module provided by an embodiment of the application
  • FIG. 3 is a schematic diagram of a partial cross-sectional structure of a curved display module along the X1-X2 direction in FIG. 1 according to an embodiment of the application;
  • FIG. 4 is a schematic diagram of a partial cross-sectional structure of a curved display module along the Y1-Y2 direction in FIG. 1 according to an embodiment of the application;
  • FIG. 5 is a schematic diagram of a partial cross-sectional structure of a curved display module at the first long side in the related art
  • FIG. 6 is a schematic structural diagram of the state where the XPCB board in the curved display module shown in FIG. 5 is bent and generates a rebound stress;
  • Figure 7 is a schematic diagram of the principle analysis of the FPC connected to the XPCB board and the panel under the bending state of the module subjected to the shearing force;
  • FIG. 8 is a schematic diagram of a partial cross-sectional structure of a curved display module at the first long side according to an embodiment of the application;
  • FIG. 9 is a schematic structural diagram of the back of a curved display module provided by an embodiment of the application.
  • FIG. 10 is a schematic cross-sectional structure diagram of a curved display module along the direction A1-A2 in FIG. 9 according to an embodiment of the application;
  • FIG. 11 is a schematic structural diagram of a fastener provided by an embodiment of this application.
  • FIG. 12 is a schematic structural diagram of a fastener provided by another embodiment of this application.
  • FIG. 13 is a schematic structural diagram of a fastener provided by another embodiment of the application.
  • FIG. 14 is a schematic structural diagram of a fastener provided by another embodiment of the application.
  • FIG. 15 is a schematic structural diagram of the back side of a curved display module provided by another embodiment of the application.
  • FIG. 16 is a schematic diagram of an enlarged structure of part S1 of the curved display module in FIG. 15;
  • FIG. 17 is a schematic diagram of a cross-sectional structure of the curved surface display module in FIG. 16 along the direction B1-B2;
  • FIG. 18 is a schematic cross-sectional structure diagram of the curved display module in FIG. 16 along the C1-C2 direction;
  • FIG. 19 is a schematic diagram of an enlarged structure of part S2 of the curved display module in FIG. 15;
  • FIG. 20 is a schematic cross-sectional structure diagram of the curved display module in FIG. 19 along the direction D1-D2;
  • 21 is a schematic diagram of a cross-sectional structure of the curved surface display module in FIG. 19 along the E1-E2 direction;
  • FIG. 22 is a schematic structural diagram of a cover plate provided by an embodiment of the application.
  • FIG. 23 is a schematic diagram of a part of an exploded structure of a curved display module before assembly of a sub XPCB according to an embodiment of the application;
  • FIG. 24 is a schematic diagram of part of the structure of the curved display module in FIG. 23 after the sub-XPCB is assembled.
  • the final liquid crystal screen module (OC) In the curved surface module project, the final liquid crystal screen module (OC) must be presented in a curved shape to meet the curved surface requirements of the product.
  • Directly manufacturing curved display panels (panel), flexible circuit boards (FPC) and circuit boards (XPCB) that match the requirements of curved surfaces requires extremely high R&D costs, and as emerging things, the R&D schedule, yield, and production capacity are uncontrollable.
  • As a project development risk is extremely high; but to apply flat liquid crystal screen modules (OC) to curved modules, especially large-size automotive curved modules with high reliability requirements, it is necessary to properly solve the curvature control of each sub-component related to OC Problems and their reliability and reliability.
  • the present application discloses a curved display module and a curved display device, and its purpose is to provide a module design framework that can improve the curvature control effect of the curved display module.
  • FIG. 1, FIG. 2, FIG. 9, FIG. 15 are schematic diagrams of the overall structure of the curved surface display module provided by the embodiment of the application; FIG. 5, FIG. 6, FIG. The stress state of the XPCB board and the FPC is analyzed; other drawings are partial enlarged views or cross-sectional views of the curved display module provided in the embodiment of the application. It should be noted that the drawings in this application mainly reflect the approximate positions, forms, and connection modes of each structure, and there are no limitations on the size ratio of each structure.
  • the numerical range in the embodiments of the present application, words such as “left and right”, “approximately”, etc. are involved, which represent a numerical range based on a central numerical value.
  • the central numerical value can be specifically used as Basic plus or minus 5%, for example,'around 0.8mm', which means that the numerical range can be '0.76mm-0.84mm'.
  • an embodiment of the present application provides a curved surface display module.
  • the curved surface display module has a square shape and has two opposite long sides and two opposite short sides.
  • the curved display module can be bent and arranged along the long side direction (the X-X direction in FIG. 1).
  • the curved display module provided by the embodiment of the present application is placed horizontally in practical applications, that is, of the two long sides, one long side faces the ground side (ground side), and the other long side faces the sky side (sky Side), the two short sides are located on the left and right sides; in addition, in this application, the “first long side” refers to one long side used for the FPC binding connection.
  • the curved display module is suitable for medium or large curved display products, especially for large curved display items, such as 1.2m long display products.
  • the curved display module can be used in a vehicle-mounted curved display device, a curved TV, a monitor, and the like.
  • the curved display module includes a display panel 1, a backlight module 2, a front frame 3, a back plate 4, an XPCB 6, and an FPC 5; the front frame 3 and the back plate 4 Cooperate to assemble the display panel 1 and the backlight module 2; the FPC 5 is arranged at the first long side edge of the display panel 1, and is configured to align the first long side edge of the display panel 1
  • the binding area is connected to the XPCB6.
  • the front frame 3 and the back plate 4 of the curved display module cooperate to form an assembled housing
  • the curved display module includes an upper plastic frame 7 and a lower plastic frame 8 located in the housing.
  • the gluing frame 7 includes a vertical frame 71 for limiting the side of the display panel 1, and a supporting portion 72 extending inward relative to the vertical frame 71 and used for supporting the back edge of the display panel 1; the display panel 1 is located on the supporting part.
  • the backlight module 2 is located on the rear side of the carrying portion 72; the lower plastic frame 8 is used to be arranged between the backlight module 2 and the back plate 4
  • the back edge of the display panel 1 is placed on the bearing portion 72 of the glue frame 7, and the mullion 71 of the glue frame 7 limits the side of the display panel 1;
  • the front frame 3 includes the front The frame 31 and the side frame 32, the front frame 31 limits the front edge of the display panel 1; further, the restriction of the front frame 3, the back plate 4, and the upper and lower frames 71 and 72 can realize the display Curvature control of Panel 1 and Backlight Module 2.
  • the front frame 3 and the back plate 4 may be made of metal materials.
  • the curved display module further includes a first foam 101 located between the front frame 31 and the front edge of the display panel 1, located on the upper The second foam 102 between the supporting portion 712 of the glue frame 71 and the back edge of the display panel 1, and the silicone pad 103 between the mullion 711 of the glue frame 71 and the side of the display panel 1 .
  • the first foam 101 and the second foam 102 are mainly used for sealing to prevent foreign objects from entering the module.
  • the silicone pad 103 mainly serves as a buffer to avoid problems such as screen chipping caused by vibration or force.
  • the first foam 101 is pasted on the inner surface (toward the panel side) of the front frame 31 of the front frame 3, and the thickness may be about 0.8 mm.
  • the second foam 102 is pasted on the side of the supporting portion 712 of the sizing frame 71 facing the back of the display panel 1, and the thickness may be about 1.1 mm.
  • the first foam 101 and the second foam 102 may be arranged along the circumference of the display panel 1.
  • silicone pads 103 can be provided on the left and right sides of the glue frame 71 and on the mullion 711 on the ground side. Specifically, the silicone pad 103 is attached to the inner side of the mullion 711 (toward the panel side), for example .
  • the thickness of the silicone pad 103 pasted on the mullions 711 on the left and right sides (the sides along the XX direction in Figure 1) can be about 0.45mm, on the ground side (the side along the YY direction and facing the ground in Figure 1)
  • the thickness of the silicone pad 103 pasted on the mullion 711 can be about 0.3 mm.
  • the gap between the lower surface of the first foam 101 and the panel 1 may be about 0.4 mm.
  • the gap between the left and right side surfaces of the panel 1 and the silicone pads 103 on the left and right sides is about 0.32 mm, and the gap between the left and right side surfaces of the panel 1 and the left and right mullions 711 is about 0.77 mm.
  • the ground side of the panel 1 is supported on a silicone pad 103 with a thickness of about 0.3 mm, and the gap between the sky side surface of the panel 1 and the mullion 711 is about 0.4 mm.
  • the FPC will be subjected to shearing force, and there is a risk of force tearing.
  • FIG. 5 is a partial cross-sectional schematic diagram of a curved display module in the related art along the width direction (the YY direction in Fig. 1).
  • the XPCB 6 is fixed on the back of the backplane 4 and one side of the FPC 5 It is located on the TFT layer of panel 1 and is bound to panel 1, and the other side is located on the XPCB 6 side and bound to XPCB 6.
  • the strip XPCB 6 is forcibly locked on the back of the curved backplane 4 with screws, as shown in the figure
  • the XPCB 6 after forcibly bent will always maintain a kind of resilience stress, and at the same time, the FPC bound to the XPCB 6 will also receive a shearing force.
  • the difference between the total span of the FPC on the XPCB side and the panel side needs to be widened by ⁇ L to meet the needs of the module structure bending.
  • L OC L PCB , that is, the actual panel side and XPCB
  • the total span of the FPC on the side is equal and fixed, so the FPC is prone to tearing after the module is bent and assembled, and as the value of ⁇ d and ⁇ is larger (that is, the larger the L PCB ), the larger the ⁇ L, the FPC after assembly The greater the risk of tearing.
  • the first long side edge of the back plate 4 is stepped, including from the edge away from the first long side edge.
  • the back surface 41, the inclined surface 42, and the step surface 43 are sequentially connected in the direction close to the first long side edge.
  • the XPCB 6 is arranged on the side of the first long side edge of the backplane 4, specifically on the stepped surface 43 of the backplane 4; the FPC 5 is connected to the panel 1, and the other One side is connected to the XPCB 6 on the step surface 43.
  • the XPCB 6 includes at least two sections of independent sub XPCB 61 arranged along the extending direction of the first long side, and each section of the sub XPCB 61 extends along the first long side. And it is fixed to the back plate 4 by an independent connecting piece.
  • the XPCB 6 is arranged on the step surface 43 of the back plate 4, which can reduce the FPC 5 to 5 on the panel side.
  • the distance ⁇ d between the FPC 5 on the XPCB 6 side thereby reducing the requirement for the span difference ⁇ L between the front and rear FPC 5 during the bending process of the module, effectively reducing the risk of COF tearing after the module is assembled, and avoiding partial module Black screen problem.
  • the ⁇ d1 is approximately 17.6mm
  • the ⁇ d2 is approximately 28.2mm.
  • the lower ⁇ d value is greatly reduced, which can reduce the risk of FPC 5 tearing.
  • the XPCB 6 adopts a multi-segment design, and each segment of the XPCB 61 is fixed on the curved backplane 4 with an independent connector, which can ensure that the display module vibrates (for example, the vehicle display module is in the driving process of the vehicle).
  • the XPCB 6 is designed as a multi-segment sub-XPCB 61 structure, each sub-XPCB 61 has a smaller length, and the total span of the FPC 5 connected to each sub-XPCB 61 is smaller, that is, the total span of the FPC 5 on the XPCB 6 side is reduced L PCB can further reduce the change requirement of the total span difference ⁇ L of the FPC 5 during the bending process of the XPCB 6 and can effectively reduce the risk of tearing of the FPC 5 after the module is assembled, thereby further avoiding the problem of partial black screen of the module.
  • the connecting member includes a hook 9 and a screw; the hook 8 is configured to connect the sub XPCB 61 and the backplane 4 The connection; the screw is configured to lock the sub XPCB 61 and the backplane 4.
  • the XPCB 6 adopts a multi-segment design, and each section of the XPCB 61 is fixed on the curved backplane 4 by a number of fasteners 8.
  • the components 8 are arranged in sequence along the extension direction of the sub XPCB 61 to realize the bending of the XPCB 6 board along with the back plate 4.
  • the left and right ends of each XPCB 6 board can be locked on the step surface of the back plate 4 with screws 110 to ensure that the display module vibrates (for example, the vehicle display module vibrates when the vehicle is running). )
  • the reliability of the XPCB 6 board is provided.
  • each XPCB 61 is connected to the binding area of the display panel 1 through a plurality of the FPCs 5; the plurality of fasteners 8 are arranged at intervals in the plurality of FPCs 5 In order to avoid interference with FPC5.
  • the curvature of the sub XPCB 61 of each section of the plane is controlled by a plurality of fasteners 8 to realize the bending of each section of the XPCB 61, and at the same time, the left and right ends of each section of the XPCB 61 are locked with screws 110.
  • a plurality of fasteners 8 to realize the bending of each section of the XPCB 61, and at the same time, the left and right ends of each section of the XPCB 61 are locked with screws 110.
  • the material of the clip 8 may be silica gel or PC.
  • the step surface 43 of the back plate 4 is provided with a first bayonet.
  • the buckle 8 includes a clamping 81 and a clamping portion 82; the clamping 81 is a semi-closed or open frame structure, and is configured to clamp and limit the sub XPCB 61; The portion 82 is connected to the clamping portion 81 and is configured to be engaged in the first bayonet of the stepped surface 43 of the back plate 4.
  • the engaging portion 82 may be a round table buckle (as shown in FIG. 11) or a claw-hook type buckle (as shown in FIG. 12 and FIG. 13).
  • the clamping portion 81 can be designed as a semi-closed frame structure, as shown in Figure 11, that is, the position where the XPCB 6 is clamped and clamped is designed as a semi-closed type.
  • the semi-enclosed frame structure restricts both the curvature direction and the up and down direction of the XPCB 6;
  • the engaging portion 82 connected to the back plate 4 can be designed as a round table (mushroom head) or a claw hook type buckle;
  • the semi-closed structure fastener 8 corresponding to the rubber material is more suitable for static use environments such as curved TVs and curved NBs.
  • the clamping portion 81 can be designed as an open frame structure, as shown in Figures 12 and 13, that is, the position where the XPCB 6 is clamped and clamped is designed to be open ,
  • the open frame structure only restricts the XPCB 6 in the direction of curvature, and the upper and lower constraints mainly rely on the screw locking at the left and right ends of the XPCB 6;
  • the claw-hook buckle can be designed as a pure claw-hook buckle (as shown in Figure 12) or a stepped claw-hook buckle (as shown in Figure 13), both of which can be applied to
  • the stepped claw hook and the back plate 4 have a smaller shaking amount (as shown in FIG. 10), and the noise during vibration is lower. Therefore, the stepped claw hook buckle is more suitable for the vehicle curved module.
  • the buckle 8 may also be designed to include a clamping portion 81 and a double-sided adhesive layer 83;
  • the clamping portion 81 is a semi-closed or open frame structure, Is configured to clamp and limit the sub XPCB 61;
  • the double-sided adhesive layer 83 is provided on the surface of the clamping portion 81 facing away from the sub XPCB, and is configured to be pasted on the step of the backplane Surface.
  • the engaging part of the fastener for connecting with the backplane can be replaced with double-sided tape, and the fastener is pasted on the step surface of the backplane through the double-sided tape.
  • the clip holding part 81 of this solution can be made of silicone or PC material. However, since the double-sided tape is not as reliable as the clip part, this solution is relatively more suitable for TV , NB and other static applications.
  • the overlap amount s between the clamping portion 81 of the clip 8 and the XPCB 6 needs to be designed reasonably, usually according to the application site, the overlap amount of TV, NB, etc. It can be slightly smaller, but in automotive products, the overlap amount must be large enough to ensure that the XPCB 6 board does not jump out of the clamping portion 81 during use.
  • the XPCB in a 6.48-inch vehicle-mounted curved display module, the XPCB is fixed with PC fasteners. Each section of the XPCB board uses five fasteners to connect to the backplane, and each fastener is connected to the backplane.
  • This design not only solves the problem of the sub-XPCB jumping out of the fastener during the use of the vehicle display module (such as when vibrating), but also solves the noise problem caused by the collision between the fastener and the module back plate during the use of the car. Passed the customer's NVH test and got the customer's approval.
  • the curved display module of the present application further includes a cover plate 9 corresponding to the sub XPCB 61 one-to-one; the cover plate 9 corresponds to the sub XPCB 61
  • the strip shape matching the shape is configured to be covered on the corresponding sub XPCB 61 and fixedly connected to the backplane 4.
  • the XPCB 6 includes two sections of the sub-XPCB 61, and the curved display module includes two cover plates 9 corresponding to the two sections of the sub XPCB 61 one-to-one.
  • Each sub XPCB 61 is located between the backplane 4 and its corresponding cover plate 9, and is effectively protected.
  • the XPCB In the module design, all electronic components must be effectively protected, and to ensure that the module can pass the EMC test.
  • the XPCB In the curved display module of the present application (such as a 48-inch vehicle-mounted curved display module), in order to effectively protect the FPC of the module, the XPCB is designed in two sections and is fixed on the step surface of the backplane. Small and small, there are many restrictions on the design of the cover plate used to protect the XPCB.
  • the final confirmed design plan is: as shown in Figure 2 and Figure 15, each section of the XPCB 61 board is protected by an independent cover plate 9, and two The section XPCB 61 board and its cover 9 are arranged symmetrically.
  • the front frame includes a front frame 31 and a side frame 32.
  • the side frame 32 is wrapped around the outer side of the folded edge 44 of the back panel and is folded with the back panel. Edge 44 is fixedly connected.
  • a section of the side frame 32 arranged along the first long side of the display panel is provided with a second bayonet 320.
  • a hook portion 91 is provided on one side edge of the cover plate 9 close to the side frame 32 of the section, and the hook portion 91 is engaged with the second bayonet 320 on the side frame 32 of the section.
  • the cover plate 9 is provided with a first locking nail portion 92 on a side edge away from the above-mentioned section of the side frame 32, and the first locking nail portion 92 is provided with a first locking pin portion 92.
  • the first locking nail portion 92 is provided on the inclined surface 42 of the back plate, and is connected to the inclined surface 42 of the back plate by screws.
  • both ends of the cover plate 9 are provided with second locking nail portions 93, and the second locking nail portion 93 is provided with a second locking hole;
  • the second locking nail portion 93 is provided on the step surface 43 of the back plate, and is connected to the step surface 43 by a screw 110.
  • the second locking hole provided in the second locking nail portion 93 is a waist-shaped hole extending along the extending direction of the first long side, which can be well compatible with the curvature deformation of the display module. The assembly tolerance.
  • each cover 9 includes a plurality of hook portions 91 and a plurality of first locking nail portions 92; the plurality of hook portions 91 are close to the side along the cover 9 One side edge of the frame 32 is arranged in sequence; the plurality of first locking nail portions 92 are arranged in sequence along a side edge of the cover 9 away from the side frame 32.
  • each cover plate 9 in order to ensure the curvature and fixing reliability of the cover plate 9, the cover plate 9 is fixed from three aspects: the hook portion 91 protruding on one long side, and the other long side protruding to the back.
  • the first locking nail portion 92 on the inclined surface 42 of the plate 4, and the second locking nail portion 93 are provided at both ends.
  • each cover plate 9 may be provided with three hook portions 91, through which the three hook portions 91 are snap-fitted with the side frame 32 of the front frame 3.
  • the overlap amount can be about 2.0mm; this design has a simple structure, saves space, and is firmly assembled; each cover plate 9 is provided with two second locking nail parts 93, and the two second locking nail parts 93 are respectively located on the cover plate 9 The two ends are locked on the back plate 4 by screws 110.
  • the second locking hole provided in the second locking nail portion 93 may be a waist-shaped hole that matches with the M2.5 threaded hole on the step surface of the back plate 4. Aperture The center distance is 1.0mm.
  • each cover plate 9 is provided with three first locking nail portions 92 and first locking nail portions 92
  • the screw 111 is used to lock the back plate 4, for example, the first locking hole provided in the first locking nail portion 92 can be a round hole that matches with the M2.5 threaded hole on the inclined surface of the back plate 4, and the aperture is Pore size relative to The screws can be well compatible with the left and right deviations of the stepped surface threaded holes and the up and down deviations of the beveled threaded holes during the assembly process.
  • the cover plate 9 and the back plate 4 are locked together, that is, the curved structure is corrected
  • the possible curvature deformation ensures the assembling curvature of the cover 9 and can avoid the cover 9 from being turned upside down during the assembly process and the transportation process.
  • the design of the cover plate 9 of the embodiment of the present application can simultaneously ensure the EMC performance at the XPCB 6 and the overall appearance of the curved display module, and can effectively control the gap between the cover plate 9 and the main structure of the module to ensure that there is no Murmur.
  • the sub XPCB 61 is provided with a third locking pin corresponding to the position of the second locking hole provided in the second locking pin portion 93 Hole 610;
  • the third locking nail hole 610 is a waist-shaped hole extending along the extending direction of the first long side;
  • the screw 110 connecting the second locking nail portion 93 and the back plate step surface 43 penetrates the first Three locking nail holes 610, that is, the locking screws 110 at both ends of the cover 9 simultaneously lock both ends of the sub XPCB 61, or in other words, the two ends of the cover 9 and the corresponding two ends of the sub XPCB 61 are simultaneously screwed through the same screws 110.
  • the lock is attached to the stepped surface 43 of the back plate 4.
  • the sub-XPCB 61 is first connected to the step surface 43 of the back plate through a plurality of fasteners 8, and then the cover plate 9 is covered on the sub XPCB 61, so that the hook portion 91 is locked on the side frame 32 of the front frame, and finally the two ends of the cover 9 and the sub XPCB 61 are fixed on the step surface 43 of the back plate by screws 110, and pass
  • the screw 111 fixes the first locking nail portion 92 of the cover plate 9 on the inclined surface 42 of the back plate, thereby completing the assembly, as shown in FIG. 24 after assembly.
  • an embodiment of the present application further provides a curved display device, which includes the curved display module as described in any one of the above.
  • the curved display device may be a vehicle-mounted display product, or may be a static application site product such as TV and NB.
  • the curved display module and device may also include other structures, which may be determined according to actual requirements, and the embodiments of the present disclosure do not limit this.
  • the specific shape, layout, and size design of some structures are not limited to the above-mentioned design.
  • the presented embodiments may also have other improvements in practical applications. For details, reference may be made to the above description of the structural and functional requirements, which will not be repeated here.

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Abstract

一种曲面显示模组和曲面显示装置，曲面显示模组可沿长边方向弯曲设置，包括显示面板（1）、背光模组（2）、前框（3）、背板（4）、XPCB（6）、FPC（5）；FPC（5）设置在显示面板（1）的第一长边边缘处，被配置为将显示面板（1）的第一长边边缘的绑定区与XPCB（6）之间连接；背板（4）的第一长边边缘呈阶梯状，包括从远离第一长边边沿向靠近第一长边边沿的方向上依次连接的背面（41）、斜面（42）和台阶面（43）；XPCB（6）设置在背板（4）的台阶面（43）上，包括沿第一长边延伸方向排列的至少两段相互独立的子XPCB（61），每段子XPCB（61）沿第一长边延伸，并通过独立的连接件固定于背板（4），可以改善曲面显示模组曲率管控效果。

Description

一种曲面显示模组和曲面显示装置
相关申请的交叉引用
本申请要求在2020年06月11日提交中国专利局、申请号为202010529401.1、申请名称为“一种曲面显示模组和曲面显示装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及曲面显示技术领域，特别涉及一种曲面显示模组和曲面显示装置。
背景技术
目前传统的显示模组都是平面显示架构，随着显示技术的发展和人们对于创新性显示效果的追求，需要考量多元化的模组显示形态，曲面显示更加符合人体设计工学，能够呈现更具真实视角的显示效果。对于曲面显示，显示模组(OC)的曲率控制对模组的性能以及最终的显示效果有至关重要的影响。
目前针对大尺寸曲面OC的曲率控制方案微乎其微，且并没有明确技术架构及方案。仅有的一篇针对曲面测量治具的专利CN107813136A(一种OLED曲面电视制作工艺流程)只是笼统地介绍了曲面电视的组装流程，并未对如何控制OC曲率做任何解说。但是OC的曲率控制直接影响模组的功能实现及显示效果，有效管控OC曲率(panel曲率、COF曲率及XPCB板曲率)对模组品质管控尤为重要，因此，本专利着重解决的就是大尺寸曲面OC的曲率控制设计架构及其方案。
发明内容
本申请公开了一种曲面显示模组和曲面显示装置，目的是提供一种可以 改善曲面显示模组曲率管控效果的模组设计架构。
一种曲面显示模组，可沿长边方向弯曲设置；所述曲面显示模组包括显示面板、背光模组、前框、背板、XPCB、FPC；所述前框与所述背板配合以将所述显示面板和所述背光模组组装；其中：
所述FPC设置在所述显示面板的第一长边边缘处，被配置为将所述显示面板的第一长边边缘的绑定区与所述XPCB之间连接；
所述背板的第一长边边缘呈阶梯状，包括从远离第一长边边沿向靠近第一长边边沿的方向上依次连接的背面、斜面和台阶面；
所述XPCB设置在所述背板的台阶面上，包括沿所述第一长边延伸方向排列的至少两段相互独立的子XPCB，每段子XPCB沿所述第一长边延伸，并通过独立的连接件固定于所述背板。
一些实施例中，所述连接件包括卡扣件和螺钉；所述卡扣件被配置为将所述子XPCB与所述背板之间连接；所述螺钉被配置为将所述子XPCB与所述背板之间锁定。
一些实施例中，每段子XPCB通过多个所述卡扣件与所述背板之间连接，所述多个卡扣件沿所述子XPCB延伸方向依次排列。
一些实施例中，每段子XPCB通过多个所述FPC与所述显示面板的绑定区连接；所述多个卡扣件间隔设置在所述多个FPC之间。
一些实施例中，每段子XPCB的两端通过所述螺钉锁定在所述背板的台阶面。
一些实施例中，所述背板的台阶面设有第一卡口；
所述卡扣件包括夹持部和卡合部；所述夹持部为半封闭式或者开放式的框型结构，被配置对所述子XPCB夹持限位；所述卡合部与所述夹持部相连，被配置为卡合在所述背板台阶面的第一卡口内。
一些实施例中，所述卡合部为爪勾式卡扣或者圆台式卡扣。
一些实施例中，所述卡扣件包括夹持部和双面胶；所述夹持部为半封闭式或者开放式的框型结构，被配置对所述子XPCB夹持限位；所述双面胶设 置在所述夹持部背离所述子XPCB的一侧表面上，被配置为粘贴于所述背板的台阶面上。
一些实施例中，所述的曲面显示模组，还包括与所述子XPCB一一对应的盖板；所述盖板呈与所述子XPCB形状匹配的条形，被配置为罩在与其对应的子XPCB上，并与所述背板之间固定连接。
一些实施例中，所述前框包括前边框和侧边框，所述侧边框包覆在所述背板的折边外侧并与所述背板的折边固定连接；沿所述显示面板的第一长边设置的一段所述侧边框上设有第二卡口；
所述盖板靠近所述侧边框的一侧边沿设有卡钩部，所述卡钩部与所述侧边框上的第二卡口卡合。
一些实施例中，所述盖板远离所述侧边框的一侧边沿设有第一锁钉部，所述第一锁钉部设置在所述背板的斜面上，并通过螺钉与所述斜面连接。
一些实施例中，所述盖板的两端设有第二锁钉部，所述第二锁钉部设置在所述背板的台阶面上，并通过螺钉与所述台阶面连接；所述第二锁钉部上设有的第二锁定孔为沿所述第一长边延伸方向延伸的腰型孔。
一些实施例中，所述子XPCB设有与所述第二锁钉孔位置对应的第三锁钉孔；所述第三锁钉孔为沿所述第一长边延伸方向延伸的腰型孔；连接所述第二锁钉部与所述背板台阶面的螺钉贯穿所述第三锁钉孔。
一些实施例中，所述盖板包括多个卡钩部和多个第一锁钉部；所述多个卡钩部沿所述盖板靠近所述侧边框的一侧边沿依次排列；所述多个第一锁钉部沿所述盖板远离所述侧边框的一侧边沿依次排列。
一些实施例中，所述XPCB包括两段所述子XPCB，所述曲面显示模组包括与所述两段子XPCB一一对应的两个盖板。
一些实施例中，所述的曲面显示模组，还包括上胶框，所述上胶框包括用于对显示面板侧边进行限位的竖框、以及相对于竖框向框内伸出并用于承载显示面板背面边缘的承载部；
所述前框包括前边框和侧边框，所述前边框用于限位所述显示面板的正 面边缘；
所述曲面显示模组还包括位于所述前边框与所述显示面板的正面边缘之间的第一泡棉，位于所述胶框的承载部与所述显示面板背面边缘之间的第二泡棉，以及位于所述胶框的竖框与所述显示面板侧边之间的硅胶垫。
一种曲面显示装置，包括如上述任一项所述的曲面显示模组。
附图说明
图1为本申请实施例提供的一种曲面显示模组的立体结构示意图；
图2为本申请实施例提供的一种曲面显示模组的爆炸结构示意图；
图3为本申请一实施例提供的一种曲面显示模组沿图1中X1-X2方向的两端的部分截面结构示意图；
图4为本申请一实施例提供的一种曲面显示模组沿图1中Y1-Y2方向的两端的部分截面结构示意图；
图5为相关技术中一种曲面显示模组在第一长边处的部分截面结构示意图；
图6为图5中所示的曲面显示模组中XPCB板弯曲后产生回弹应力的状态结构示意图；
图7为与XPCB板和panel相连的FPC在模组弯曲状态下受到剪切力的原理分析示意图；
图8为本申请实施例提供的一种曲面显示模组在第一长边处的部分截面结构示意图；
图9为本申请一实施例提供的一种曲面显示模组的背面的结构示意图；
图10为本申请一实施例提供的一种曲面显示模组沿图9中A1-A2方向的截面结构示意图；
图11为本申请一实施例提供的一种卡扣件的结构示意图；
图12为本申请另一实施例提供的一种卡扣件的结构示意图；
图13为本申请另一实施例提供的一种卡扣件的结构示意图；
图14为本申请另一实施例提供的一种卡扣件的结构示意图；
图15为本申请另一实施例提供的一种曲面显示模组的背面的结构示意图；
图16为图15中的曲面显示模组的S1部分的放大结构示意图；
图17为图16中的曲面显示模组沿B1-B2方向的截面结构示意图；
图18为图16中的曲面显示模组沿C1-C2方向的截面结构示意图；
图19为图15中的曲面显示模组的S2部分的放大结构示意图；
图20为图19中的曲面显示模组沿D1-D2方向的截面结构示意图；
图21为图19中的曲面显示模组沿E1-E2方向的截面结构示意图；
图22为本申请一实施例提供的一种盖板的结构示意图；
图23为本申请一实施例提供的一种曲面显示模组在子XPCB组装之前的部分爆炸结构示意图；
图24为图23中的曲面显示模组在子XPCB组装之后的部分结构示意图。
具体实施方式
在曲面模组项目中，最终的液晶屏模组(OC)必须以曲面形态呈现才能满足产品的曲面需求。而直接制造匹配曲面需求的曲面显示面板(panel)、柔性线路板(FPC)及电路板(XPCB)需要极高的研发成本，且作为新兴事物其研发日程、良率、产能等都不可控，作为项目开发风险极高；而要将平面液晶屏模组(OC)应用于曲面模组，尤其是高信赖性需求的大尺寸车载曲面模组，则必须妥善解决OC相关各子部件的曲率控制问题及其信赖性和可靠性问题。
本申请公开一种曲面显示模组和曲面显示装置，目的即是提供一种可以改善曲面显示模组曲率管控效果的模组设计架构。
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
请参考图1至图24。其中，图1，图2,图9,图15为本申请实施例提供的曲面显示模组的整体结构示意图；图5，图6，图7用于相关技术中曲面显示模组弯曲状态下的XPCB板和FPC的受力状态进行分析；其他附图为本申请实施例提供的曲面显示模组的部分放大图或者截面图。需要说明的是，本申请中的附图主要体现各结构的大致位置，形态和连接方式等，对于各结构的尺寸比例等方面并没有限定。
具体的，本申请实施例中，对于数值范围的描述中，涉及到‘左右’‘大概’‘大致’等词语，代表以中心数值为基础的一个数值范围，例如，具体的可以以中心数值为基础加减5％，示例性的，‘0.8mm左右’，表示该数值范围可以是‘0.76mm-0.84mm’。
例如，本申请实施例提供一种曲面显示模组，如图1所示，该曲面显示模组为方形，具有相对的两个长边和相对的两个短边。该曲面显示模组可沿长边方向(如图1中的X-X方向)弯曲设置。
具体的，本申请实施例提供的曲面显示模组，在实际应用中横向放置，即两个长边中，一个长边朝向地面一侧(地侧)，另一个长边朝向天空一侧(天侧)，两个短边则位于左右两侧；另外，本申请中，‘第一长边’是指用于FPC绑定连接的一侧长边。该曲面显示模组适用中型或大型曲面显示产品，尤其适用大型曲面显示项目，如1.2m长显示产品。具体的，该曲面显示模组可以用于车载曲面显示装置或者曲面电视，显示器等。
具体的，如图2所示，所述曲面显示模组包括显示面板1、背光模组2、前框3、背板4、XPCB 6、FPC 5；所述前框3与所述背板4配合以将所述显示面板1和所述背光模组2组装；所述FPC 5设置在所述显示面板1的第一长边边缘处，被配置为将所述显示面板1第一长边边缘的绑定区与所述XPCB6之间连接。
例如，如图3和图4所示，该曲面显示模组的前框3和背板4配合以形成组装外壳，曲面显示模组包括位于该外壳内的上胶框7和下胶框8。上胶框7包括用于对显示面板1侧边进行限位的竖框71、以及相对于竖框71向框内 伸出并用于承载显示面板1背面边缘的承载部72；显示面板1位于承载部72的前侧，背光模组2位于承载部72的后侧；下胶框8用于设置在背光模组2与背板4之间。
如图3和图4所示，显示面板1的背面边缘放置在上胶框7的承载部72上，上胶框7的竖框71对显示面板1侧边进行限位；前框3包括前边框31和侧边框32，前边框31将所述显示面板1的正面边缘限位；进而，通过前框3，背板4以及上胶框71和下胶框72的限制，即可以实现对显示面板(Panel)1和背光模组2的曲率控制。
示例性的，前框3和背板4可以为金属材料。
一些实施例中，如图3和图4所示，所述曲面显示模组还包括位于所述前边框31与所述显示面板1的正面边缘之间的第一泡棉101，位于所述上胶框71的承载部712与所述显示面板1背面边缘之间的第二泡棉102，以及位于所述上胶框71的竖框711与所述显示面板1侧边之间的硅胶垫103。
第一泡棉101和第二泡棉102主要为密封作用，防止异物进入模组内，硅胶垫103主要起到缓冲作用，避免震动或受力导致屏幕碎裂等问题。
示例性的，第一泡棉101粘贴在前框3的前边框31内侧面(朝向panel一侧)，厚度可以为0.8mm左右。第二泡棉102粘贴在上胶框71的承载部712朝向显示面板1背面的一侧，厚度可以1.1mm左右。第一泡棉101和第二泡棉102可以沿显示面板1的四周布置。
示例性的，可以在上胶框71的左右两侧和地侧的竖框711上设置硅胶垫103，具体将硅胶垫103贴附在竖框711的内侧面(朝向panel一侧)上，例如，左右两侧(如图1中沿X-X方向两侧)的竖框711上粘贴的硅胶垫103厚度可以为0.45mm左右，地侧(如图1中的沿Y-Y方向且朝向地面的一侧)的竖框711上粘贴的硅胶垫103厚度可以为0.3mm左右。
示例性的，如图4所示，第一泡棉101下表面到panel 1之间间隙可以为0.4mm左右。panel 1左右两侧表面与左右两侧硅胶垫103的间隙为0.32mm左右，panel 1左右两侧表面与左右两侧竖框711的间隙为0.77mm左右。panel 1地侧支撑在大概0.3mm厚的硅胶垫103上，panel 1的天侧表面与竖框711之间间隙为0.4mm左右。
具体的，通过上述硅胶垫103、第一泡棉101和第二泡棉102的设置，以及结构间隙设计，即可以避免汽车行驶过程中panel 1撞击上胶框71、前框3造成panel 1损坏，又可以避免模组异物入侵，造成画面异常。
具体的，显示模组弯曲呈曲面的过程中，FPC会受到剪切力，具有受力撕裂的风险。
下面，采用几何图形模拟的方式对FPC弯曲受力的影响因素进行理论分析。图5为相关技术中的一种曲面显示模组沿宽度方向(如图1中的Y-Y方向)的部分截面示意图，如图5所示，XPCB 6固定在背板4背面，FPC 5的一侧位于panel 1侧TFT层上并与panel 1绑定链接，另一侧位于XPCB 6侧并与XPCB 6绑定链接，通过螺钉强行将条形XPCB 6锁付在曲面背板4的背面，如图6所示，强行弯曲后的XPCB 6会始终保持一种回弹应力，同时，与XPCB 6绑定的FPC也会受到一个剪切力。
具体的，模组弯曲后在panel侧和XPCB侧对FPC的跨度需求不同，如图7所示：设模组弯曲曲率半径为R，panel侧的FPC到背板后面XPCB侧的FPC的距离为Δd；XPCB左右两端(沿模组弯曲方向的两端)的FPC跨度为L，其中：
Panel侧的FPC总跨度L OC＝2π·R·θ/360°；
XPCB侧的FPC总跨度L PCB＝2π·(R+Δd)·θ/360°；
FPC在panel侧和XPCB侧的总跨度差值ΔL＝L PCB-L OC＝2π·(R+Δd)·θ/360°-2π·R·θ/360°＝2π·Δd·θ/360°；
θ为XPCB侧FPC总跨度所对应的弯曲圆弧角度，θ＝{L PCB/[2π·(R+Δd)]}·360°。
进而，ΔL＝2π·Δd·θ/360°＝2π·Δd·{LPCB/[2π·(R+Δd)]}·360°/360°＝Δd·LPCB/(R+Δd)。
由计算结果得知，FPC在XPCB侧和在panel侧的总跨度差值需加宽ΔL 才能满足模组结构弯曲的需求，但是，常规平面形态下L OC＝L PCB，即实际panel侧和XPCB侧的FPC总跨度是相等且固定的，因此FPC在模组弯曲组装后很容易发生撕裂，并且随着Δd值和θ值越大(即L PCB越大)，ΔL越大，组装后FPC撕裂风险越大。
具体的，本申请实施例提供的曲面显示模组，如图8所示，在一些实施例中，所述背板4的第一长边边缘呈阶梯状，包括从远离第一长边边沿向靠近第一长边边沿的方向上依次连接的背面41、斜面42和台阶面43。
示例性的，如图8所示，XPCB 6设置在背板4的第一长边边缘一侧，具体设置在所述背板4的台阶面43上；FPC 5一侧与panel 1连接，另一侧与台阶面43上的XPCB 6连接。
示例性的，如图2和图9所示，XPCB 6包括沿所述第一长边延伸方向排列的至少两段相互独立的子XPCB 61，每段子XPCB 61沿所述第一长边延伸，并通过独立的连接件固定于所述背板4。
具体的，相对于常规显示装置将XPCB 6设置在背板4背面41的设置，本申请实施例中，将XPCB 6设置在背板4的台阶面43上，可以减小panel侧的FPC 5到XPCB 6侧的FPC 5的距离Δd，进而降低模组弯曲过程中对于前后两侧FPC 5的跨度差值ΔL的要求，有效减小模组组装后COF发生撕裂的风险，避免出现模组局部黑屏的问题。例如，如图8所示，将XPCB 6板放置于背板4的台阶面43上时Δd1大致为17.6mm，将XPCB 6板固定到背板4背面41时Δd2大致为28.2mm，相比之下Δd值大大减小了，从而可以降低FPC 5撕裂风险。
具体的，本申请实施例中，XPCB 6采用多段式设计，每段子XPCB 61采用独立的连接件固定在曲面背板4上，可以确保显示模组发生振动(如车载显示模组在车辆行驶过程中振动)时的XPCB 6板的可靠性。并且，将XPCB 6设计为多段式的子XPCB 61结构，每段子XPCB 61的长度较小，与每段子XPCB 61连接的FPC 5的总跨度较小，即减小了XPCB 6侧FPC 5总跨度L PCB，进而可以降低XPCB 6弯曲过程中对于FPC 5总跨度差值ΔL的变化要求，可 以有效减小模组组装后FPC 5发生撕裂的风险，进而进一步避免出现模组局部黑屏的问题。
一些实施例中，如图2和图9所示，所述连接件包括卡扣件(hook)9和螺钉；所述卡扣件8被配置为将所述子XPCB 61与所述背板4之间连接；所述螺钉被配置为将所述子XPCB 61与所述背板4之间锁定。
示例性的，如图2和图9所示，本申请实施例中，XPCB 6采用多段式设计，每段子XPCB 61用数个卡扣件8固定在曲面背板4上，该数个卡扣件8沿所述子XPCB 61延伸方向依次排列，以实现XPCB 6板随背板4的弯曲。另外，示例性的，每个XPCB 6板的左右两端可以采用螺钉110锁付在所述背板4的台阶面，以确保显示模组发生振动(如车载显示模组在车辆行驶过程中振动)时的XPCB 6板的可靠性。
示例性的，如图2所示，每段子XPCB 61通过多个所述FPC 5与所述显示面板1的绑定区连接；所述多个卡扣件8间隔设置在所述多个FPC 5之间，以避免对FPC 5产生干涉。
具体的，本申请中，将每段平面的子XPCB 61，通过多个卡扣件8进行曲率控制，以实现每段子XPCB 61的弯曲，同时每段子XPCB 61左右两端用螺钉110锁付，以确保模组振动过程中每段子XPCB 61的可靠性。这样，既确保了平面XPCB板的曲面固定，又可以解决汽车行驶过程中XPCB板位置杂音的问题。
示例性的，卡扣件8的材质可以是硅胶，也可以是PC。
示例性的，如图10至图13所示，所述背板4的台阶面43设有第一卡口。所述卡扣件8包括夹持81和卡合部82；所述夹持81为半封闭式或者开放式的框型结构，被配置对所述子XPCB 61夹持限位；所述卡合部82与所述夹持部81相连，被配置为卡合在所述背板4台阶面43的第一卡口内。
示例性的，所述卡合部82可以为圆台式卡扣(如图11所示)或者爪勾式卡扣(如图12和图13所示)。
例如，若卡扣件8材质是硅胶，其夹持部81可以设计为半封闭式的框型 结构，如图11所示，即对XPCB 6进行夹持卡合的位置设计成半封闭式，半封闭式的框型结构对XPCB 6既有曲率方向的约束又有上下方向的约束；与背板4连接的卡合部82可以设计成圆台式(蘑菇头)或者爪勾式的卡扣；这种橡胶(rubber)材质对应的半封闭结构的卡扣件8更多地适用于曲面TV、曲面NB等静态使用环境。
例如，若卡扣件8材质是PC，其夹持部81可以设计为开放式的框型结构，如图12和图13所示，即对XPCB 6进行夹持卡合的位置设计为开放式，开放式的框型结构对XPCB 6只有曲率方向的约束，上下方向的约束主要依靠XPCB 6左右两端螺钉锁付；与背板4连接的卡合部82不能设计成蘑菇头结构，只能设计成爪勾式卡扣，但是爪勾式卡扣可以设计成纯爪勾卡扣(如图12所示)或者台阶式爪勾卡扣(如图13所示)，两者皆可应用在曲面模组中，但是台阶式爪勾与背板4配合晃动量更小(如图10所示)，振动中噪音更小，故而台阶式爪勾卡扣更适用于车载曲面模组。
示例性的，如图14所示，所述卡扣件8也可以设计为包括夹持部81和双面胶层83；所述夹持部81为半封闭式或者开放式的框型结构，被配置对所述子XPCB 61夹持限位；所述双面胶层83设置在所述夹持部81背离所述子XPCB的一侧表面上，被配置为粘贴于所述背板的台阶面上。换句话说，卡扣件的用于与背板连接的卡合部可以替换为双面胶，通过双面胶将卡扣件粘贴在背板台阶面上。此方案的卡扣件夹持部81既可以是硅胶材质，也可以是PC材质，但是，由于双面胶粘贴方式的可靠性不如卡合部，因此，相对而言，该方案更适合TV、NB等静态应用场所产品。
具体的，本申请中，如图10所示，卡扣件8的夹持部81与XPCB 6之间的搭接量s需要合理设计，通常根据应用场所，TV、NB等项目的搭接量可以略小，但是车载产品中，此搭接量必须足够大才能确保使用过程中XPCB 6板不从夹持部81中跳出。
例如，一种具体的实施例中，6.48寸车载曲面显示模组中，XPCB采用PC材质的卡扣件固定，每段子XPCB板使用五个卡扣件连接于背板，每个卡 扣件与子XPCB的搭接量overlap＝1.9mm；卡扣件与背板通过台阶式爪勾卡扣配合，台阶与背板组装孔零间隙配合。该设计即解决了车载显示模组使用过程中(如振动时)子XPCB从卡扣件中跳脱的问题，又解决了汽车使用过程中卡扣件与模组背板碰撞产生的杂音问题，通过客户NVH测试，得到客户认可。
一些实施例中，如图2和图15所示，本申请的曲面显示模组中还包括与所述子XPCB 61一一对应的盖板9；所述盖板9呈与所述子XPCB 61形状匹配的条形，被配置为罩在与其对应的子XPCB 61上，并与所述背板4之间固定连接。
示例性的，所述XPCB 6包括两段所述子XPCB 61，所述曲面显示模组包括与所述两段子XPCB 61一一对应的两个盖板9。每个子XPCB 61位于背板4和与其对应的盖板9之间，被有效保护起来。
在模组设计中，所有的电子元器件都要被有效保护，并确保模组能够通过EMC测试。例如，本申请的曲面显示模组中(如48寸车载曲面显示模组)，为有效保护模组的FPC，XPCB分两段式设计，并被固定在背板的台阶面上，此处空间狭小，用于保护XPCB的盖板的设计限制很多，通过综合评估，最终确认的设计方案为：如图2和图15所示，每段子XPCB 61板分别采用独立的盖板9保护，且两段子XPCB 61板及其盖板9左右对称设置。
具体的，如图15至图17所示，所述前框包括前边框31和侧边框32，所述侧边框32包覆在所述背板的折边44外侧并与所述背板的折边44固定连接。
在一些实施例中，如图15至图17所示，沿所述显示面板的第一长边设置的一段所述侧边框32上设有第二卡口320。示例性的，所述盖板9靠近该段侧边框32的一侧边沿设有卡钩部91，所述卡钩部91与该段侧边框32上的第二卡口320卡合。
进一步地，如图15，图16和图18所示，所述盖板9远离上述一段侧边框32的一侧边沿设有第一锁钉部92，第一锁钉部92上设有第一锁定孔；所述第一锁钉部92设置在所述背板的斜面42上，并通过螺钉与所述背板的斜 面42连接。
进一步地，如图15，图19，图20和图21所示，所述盖板9的两端设有第二锁钉部93，第二锁钉部93上设有第二锁定孔；所述第二锁钉部93设置在所述背板的台阶面43上，并通过螺钉110与所述台阶面43连接。示例性的，如图20所示，第二锁钉部93设有的第二锁定孔为沿所述第一长边延伸方向延伸的腰型孔，可以很好地兼容显示模组曲率变形导致的组装公差。
示例性的，如图15所示，每个盖板9包括多个卡钩部91和多个第一锁钉部92；所述多个卡钩部91沿所述盖板9靠近所述侧边框32的一侧边沿依次排列；所述多个第一锁钉部92沿所述盖板9远离所述侧边框32的一侧边沿依次排列。
本申请实施例中，为确保盖板9的曲率和固定可靠性，从三个方面固定盖板9：一侧长边上伸出的卡钩部91，另一侧长边上伸出至背板4斜面42上的第一锁钉部92，两端设置的第二锁钉部93。如图2，图15和图22所示，例如，每个盖板9可以设有三个卡钩部91，通过此三个卡钩部91与前框3的侧边框32卡扣配合，卡扣搭接量可以为2.0mm左右；此设计结构简洁，节省空间，组装牢固可靠；每个盖板9设有两个第二锁钉部93，两个第二锁钉部93分别位于盖板9两端，通过螺钉110锁付在背板4上，例如，第二锁钉部93设有的第二锁定孔可以为与背板4台阶面上的M2.5螺纹孔配合的腰形孔，孔径
Figure PCTCN2021093328-appb-000001
圆心距1.0mm，该两端腰形孔的设计可以很好的兼容曲面模组中曲率变形导致的组装公差；每个盖板9设有三个第一锁钉部92，第一锁钉部92通过螺钉111锁付在背板4上，例如，第一锁钉部92设有的第一锁定孔可以为与背板4斜面上的M2.5螺纹孔配合的圆孔，其孔径为
Figure PCTCN2021093328-appb-000002
Figure PCTCN2021093328-appb-000003
的孔径相对于
Figure PCTCN2021093328-appb-000004
的螺钉可以良好地兼容组装过程中与台阶面螺纹孔的左右偏差以及与斜面螺纹孔之间的上下偏差，通过此结构，盖板9与背板4斜面锁付在一起，即矫正了曲面结构可能存在的曲率变形，确保了盖板9的组装曲率，又可以避免组装过程中以及运输过程中盖板9外翻翘起。本申请实施例的盖板9设计可以同时确保XPCB 6处的EMC性能以及曲面显 示模组的整体外观效果，并且可以有效管控盖板9与模组主体结构之间的间隙，确保实用过程中无杂音。
示例性的，如图19至图21，以及图23和图24所示，所述子XPCB 61设有与所述第二锁钉部93设有的第二锁定孔位置对应的第三锁钉孔610；所述第三锁钉孔610为沿所述第一长边延伸方向延伸的腰型孔；连接所述第二锁钉部93与所述背板台阶面43的螺钉110贯穿该第三锁钉孔610，即盖板9两端的锁付螺钉110同时锁付子XPCB 61的两端，或者说，盖板9两端和与其对应的子XPCB 61的两端通过相同的螺钉110同时锁付在背板4台阶面43上。例如，如图23和图24所示，在子XPCB 61和盖板9的组装过程中，首先通过多个卡扣件8将子XPCB 61连接在背板的台阶面43上，然后将盖板9罩在子XPCB 61上，使得卡钩部91卡合在前框的侧边框32上，最后通过螺钉110将盖板9和子XPCB 61的两端固定在背板的台阶面43上，并通过螺钉111将盖板9的第一锁钉部92固定在背板的斜面42上，从而完成组装，组装后如图24所示。
具体的，本申请实施例还提供一种曲面显示装置，该曲面显示装置包括如上述任一项所述的曲面显示模组。
示例性的，该曲面显示装置可以为车载显示产品，也可以式TV、NB等静态应用场所产品。
需要说明的是，本公开的一些实施例中，曲面显示模组和装置还可以包括其他结构，这可以根据实际需求而定，本公开的实施例对此不作限制。另外，本公开实施例提供的曲面显示模组中，对于一些结构(如卡扣件，盖板9，硅胶垫103，泡棉)的具体的形状，布局和尺寸等设计，并不限于上述给出的实施例，在实际应用中也可以具有其他的改进，具体可以参考上文中对各结构功能要求的描述，此处不再赘述。
显然，本领域的技术人员可以对本申请实施例进行各种改动和变型而不脱离本申请的精神和范围。倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (17)

  1. 一种曲面显示模组，可沿长边方向弯曲设置；所述曲面显示模组包括显示面板、背光模组、前框、背板、XPCB、FPC；所述前框与所述背板配合以将所述显示面板和所述背光模组组装；其中：
    所述FPC设置在所述显示面板的第一长边边缘处，被配置为将所述显示面板的第一长边边缘的绑定区与所述XPCB之间连接；
    所述背板的第一长边边缘呈阶梯状，包括从远离第一长边边沿向靠近第一长边边沿的方向上依次连接的背面、斜面和台阶面；
    所述XPCB设置在所述背板的台阶面上，包括沿所述第一长边延伸方向排列的至少两段相互独立的子XPCB，每段子XPCB沿所述第一长边延伸，并通过独立的连接件固定于所述背板。
  2. 如权利要求1所述的曲面显示模组，其中，所述连接件包括卡扣件和螺钉；所述卡扣件被配置为将所述子XPCB与所述背板之间连接；所述螺钉被配置为将所述子XPCB与所述背板之间锁定。
  3. 如权利要求2所述的曲面显示模组，其中，每段子XPCB通过多个所述卡扣件与所述背板之间连接，所述多个卡扣件沿所述子XPCB延伸方向依次排列。
  4. 如权利要求3所述的曲面显示模组，其中，每段子XPCB通过多个所述FPC与所述显示面板的绑定区连接；所述多个卡扣件间隔设置在所述多个FPC之间。
  5. 如权利要求3所述的曲面显示模组，其中，每段子XPCB的两端通过所述螺钉锁定在所述背板的台阶面。
  6. 如权利要求2所述的曲面显示模组，其中，所述背板的台阶面设有第一卡口；
    所述卡扣件包括夹持部和卡合部；所述夹持部为半封闭式或者开放式的框型结构，被配置对所述子XPCB夹持限位；所述卡合部与所述夹持部相连， 被配置为卡合在所述背板台阶面的第一卡口内。
  7. 如权利要求6所述的曲面显示模组，其中，所述卡合部为爪勾式卡扣或者圆台式卡扣。
  8. 如权利要求2所述的曲面显示模组，其中，所述卡扣件包括夹持部和双面胶；所述夹持部为半封闭式或者开放式的框型结构，被配置对所述子XPCB夹持限位；所述双面胶设置在所述夹持部背离所述子XPCB的一侧表面上，被配置为粘贴于所述背板的台阶面上。
  9. 如权利要求1-8任一项所述的曲面显示模组，其中，还包括与所述子XPCB一一对应的盖板；所述盖板呈与所述子XPCB形状匹配的条形，被配置为罩在与其对应的子XPCB上，并与所述背板之间固定连接。
  10. 如权利要求9所述的曲面显示模组，其中，所述前框包括前边框和侧边框，所述侧边框包覆在所述背板的折边外侧并与所述背板的折边固定连接；沿所述显示面板的第一长边设置的一段所述侧边框上设有第二卡口；
    所述盖板靠近所述侧边框的一侧边沿设有卡钩部，所述卡钩部与所述侧边框上的第二卡口卡合。
  11. 如权利要求10所述的曲面显示模组，其中，所述盖板远离所述侧边框的一侧边沿设有第一锁钉部，所述第一锁钉部设置在所述背板的斜面上，并通过螺钉与所述斜面连接。
  12. 如权利要求11所述的曲面显示模组，其中，所述盖板的两端设有第二锁钉部，所述第二锁钉部设置在所述背板的台阶面上，并通过螺钉与所述台阶面连接；所述第二锁钉部上设有的第二锁定孔为沿所述第一长边延伸方向延伸的腰型孔。
  13. 如权利要求12所述的曲面显示模组，其中，所述子XPCB设有与所述第二锁钉孔位置对应的第三锁钉孔；所述第三锁钉孔为沿所述第一长边延伸方向延伸的腰型孔；连接所述第二锁钉部与所述背板台阶面的螺钉贯穿所述第三锁钉孔。
  14. 如权利要求11所述的曲面显示模组，其中，所述盖板包括多个卡 钩部和多个第一锁钉部；所述多个卡钩部沿所述盖板靠近所述侧边框的一侧边沿依次排列；所述多个第一锁钉部沿所述盖板远离所述侧边框的一侧边沿依次排列。
  15. 如权利要求9所述的曲面显示模组，其中，所述XPCB包括两段所述子XPCB，所述曲面显示模组包括与所述两段子XPCB一一对应的两个盖板。
  16. 如权利要求1-8任一项所述的曲面显示模组，其中，还包括上胶框，所述上胶框包括用于对显示面板侧边进行限位的竖框、以及相对于竖框向框内伸出并用于承载显示面板背面边缘的承载部；
    所述前框包括前边框和侧边框，所述前边框用于限位所述显示面板的正面边缘；
    所述曲面显示模组还包括位于所述前边框与所述显示面板的正面边缘之间的第一泡棉，位于所述胶框的承载部与所述显示面板背面边缘之间的第二泡棉，以及位于所述胶框的竖框与所述显示面板侧边之间的硅胶垫。
  17. 一种曲面显示装置，包括如权利要求1-16任一项所述的曲面显示模组。
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