Curved display module and display device

Abstract

The present invention discloses a curved display module and a display device, wherein the curved display module comprises: a back plate, a display panel and a display panel circuit board. The back plate comprises a bottom plate and a side plate, wherein the side plate is formed on the outer peripheral edge of the bottom plate, and the bottom plate and the side plate jointly define a storage space suitable for accommodating a backlight assembly, wherein the display panel is arranged on a side of the backlight assembly away from the bottom plate, and the display panel circuit board is electrically connected to the display panel through a flexible circuit board, and the display panel circuit board is arranged on the outer side of the side plate. According to the curved display module of an embodiment of the present invention, by arranging the display panel circuit board on the outer side of the side plate, the influence of the display panel circuit board on the curvature of the module can be significantly reduced, the requirements for high-precision curvature can be met, and the yield of the subsequent process can be ensured. Furthermore, the risk of tearing of the flexible circuit board connected between the display panel and the display panel circuit board can be reduced.

Description

Technical Field

[0001] The present invention relates to the field of display technology, and in particular to a curved display module and a display device. Background Art

[0002] Currently, traditional display modules are all flat display architectures. With the development of display technology and people's pursuit of innovative display effects, it is necessary to consider diversified module display forms. Curved displays are more in line with ergonomics and can present display effects with a more realistic perspective.

[0003] However, the curved display modules in the related art, especially the large-sized curved modules, cannot meet the requirements of high-precision curvature due to the limitations of their structural design. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a curved display module that can meet the requirements of high-precision curvature and reduce the risk of tearing of a flexible circuit board connected between a display panel and a display panel circuit board.

[0005] The present invention also provides a display device having the curved display module.

[0006] According to the first aspect of the present invention, the curved display module includes: a back panel, the back panel includes a bottom panel and a side panel, the side panel is formed on the outer peripheral edge of the bottom panel, and the bottom panel and the side panel jointly define a storage space suitable for accommodating a backlight assembly; a display panel, the display panel is arranged on a side of the backlight assembly away from the bottom panel; a display panel circuit board, the display panel circuit board is electrically connected to the display panel through a flexible circuit board, and the display panel circuit board is arranged on the outside of the side panel.

[0007] According to the curved display module of the embodiment of the present invention, by placing the display panel circuit board on the outside of the side plate, the influence of the display panel circuit board on the curvature of the module can be significantly reduced, the high-precision curvature requirements can be met, and the yield rate of the subsequent process can be guaranteed. In addition, the risk of tearing of the flexible circuit board connected between the display panel and the display panel circuit board can be reduced.

[0008] According to some embodiments of the present invention, the display panel circuit board is fixedly connected to the side panel, the side panel fixedly connected to the display panel circuit board is arc-shaped, and the bottom plate is arc-shaped.

[0009] According to some embodiments of the present invention, the side panel includes: a supporting portion, which is formed on the outer peripheral edge of the bottom plate, and the supporting portion and the bottom plate jointly define the accommodating space; a circuit board fixing portion, which is connected to the outer side of the supporting portion, at least a portion of the circuit board fixing portion is spaced apart from the supporting portion, and the display panel circuit board is arranged on the outer side of the circuit board fixing portion and is connected to the circuit board fixing portion.

[0010] In some optional embodiments of the present invention, the supporting portion includes: a first sub-support portion, one end of which is connected to the base plate, the other end of which extends toward the direction adjacent to the display panel, the circuit board fixing portion is located on the outside of the first sub-support portion, and the circuit board fixing portion is opposite to and spaced from the first sub-support portion; a second sub-support portion, one end of which is connected to the other end of the first sub-support portion, the other end of which extends outward and is connected to the circuit board fixing portion.

[0011] Furthermore, the curved display module also includes: a backlight assembly, the backlight assembly includes a second optical film material, a positioning boss is formed on one side of the second sub-support portion adjacent to the display panel, and a positioning hole is formed on the second optical film material to cooperate with the positioning boss.

[0012] According to some embodiments of the present invention, the curved display module includes: a first protective cover, at least a portion of which is disposed on the outer side of the side plate and covers the display panel circuit board.

[0013] In some optional embodiments of the present invention, the curved display module includes: a middle frame, at least a portion of the middle frame is arranged on a side of the back panel adjacent to the display panel, the display panel is supported on the middle frame, the first protective cover includes a protective portion and a first bent edge, the protective portion is located on the outer side of the side panel and / or the outer side of the middle frame, the first bent edge is located on a side of the protective portion adjacent to the display panel, and the first bent edge abuts against the side of the middle frame adjacent to the display panel.

[0014] Furthermore, the first protection cover further includes a second bent edge, the second bent edge is located on a side of the protection portion away from the display panel, and the second bent edge abuts against a surface of the back plate away from the display panel.

[0015] According to some embodiments of the present invention, a first fixing hole is formed on the side panel, a second fixing hole corresponding to the first fixing hole is formed on the display panel circuit board, and fasteners are passed through the first fixing hole and the second fixing hole to connect the display panel circuit board to the back panel.

[0016] In some optional embodiments of the present invention, the first fixing hole is formed on the circuit board fixing portion.

[0017] In some optional embodiments of the present invention, a positioning boss for positioning the display panel circuit board is formed on the side plate, the positioning boss is arranged around the outer peripheral edge of the first fixing hole, and the positioning boss cooperates with the second fixing hole.

[0018] In some optional embodiments of the present invention, the curved display module includes: a first protective cover, at least a portion of which is arranged on the outer side of the side panel and covers the display panel circuit board, a third fixing hole is provided on the first protective cover, and fasteners are passed through the first fixing hole, the second fixing hole and the third fixing hole to connect the display panel circuit board and the first protective cover to the back panel.

[0019] According to some embodiments of the present invention, the curved display module also includes a backlight assembly, and the backlight assembly includes: a light source component and a reflector, the light source component is arranged on the bottom plate, the reflector includes a first reflector part and a second reflector part, the first reflector part is arranged on the light source component and is located on a side of the light source component away from the bottom plate, and the second reflector part is arranged on the side plate.

[0020] According to some embodiments of the present invention, the curved display module includes: a chip-on-film assembly, the chip-on-film assembly is arranged on the outer side of the side plate, and the chip-on-film assembly is used to transmit a driving signal to the display panel.

[0021] In some optional embodiments of the present invention, the chip-on-film assembly includes a source chip-on-film, and the source chip-on-film and the display panel circuit board are located on the same side of the side plate.

[0022] Furthermore, the curved display module includes: a second protective cover, which is arranged on the outer side of the side plate and covers the source chip-on-chip film.

[0023] Optionally, the curved display module includes: a first protective cover, the first protective cover is arranged on the outer side of the side plate and covers the display panel circuit board, and the second protective cover is the same protective cover as the first protective cover.

[0024] Optionally, a spacer layer is provided between the second protection cover and the source chip-on-chip film.

[0025] In some optional embodiments of the present invention, the COF assembly includes a gate COF, and the gate COF and the display panel circuit board are located on different sides of the side plate.

[0026] Furthermore, the curved display module comprises a third protective cover, and the third protective cover is arranged on the outer side of the side plate and covers the gate chip-on-film.

[0027] In some optional embodiments of the present invention, the curved display module includes: a middle frame, the middle frame is arranged on a side of the back plate adjacent to the display panel, the display panel is supported on the middle frame, the chip-on-film assembly is arranged on the outer side of the middle frame, and the middle frame is provided with an avoidance hole for avoiding the chip-on-film assembly.

[0028] According to some embodiments of the present invention, the curved display module includes: a middle frame, which is arranged on a side of the back plate adjacent to the display panel, the display panel and the middle frame are connected via foam tape, and a positioning groove is formed on the middle frame for accommodating the foam tape.

[0029] According to some embodiments of the present invention, the backlight assembly includes a light source component, which is disposed on the bottom plate and includes a plurality of light bars, which are arranged at intervals in the up and down directions, and each light bar extends in the left and right directions.

[0030] In some optional embodiments of the present invention, the light source component includes a light bar connector for controlling the light bar, and the side panel is formed with wire outlet holes for the light bar connector to output wires, the number of the wire outlet holes, the number of the light bar connectors and the number of the light bar are the same and correspond one to one, and each of the wire outlet holes is arranged relative to the corresponding light bar connector.

[0031] Optionally, a portion of the light bar connectors are located on the left side of the corresponding light bar, and another portion of the light bar connectors are located on the right side of the corresponding light bar.

[0032] In some optional embodiments of the present invention, the light bar includes a light board and lamp beads arranged on the light board, and the light board is made of an FPC substrate or a FR4 substrate.

[0033] In some optional embodiments of the present invention, the bottom plate has a contour reference for positioning the light bar.

[0034] According to some embodiments of the present invention, the display panel circuit board is arranged on the ground side of the side plate.

[0035] According to some embodiments of the present invention, the back plate is an aluminum alloy part or a magnesium alloy part.

[0036] According to some embodiments of the present invention, the back plate is an integrally formed part.

[0037] Optionally, the back plate is a die-casting.

[0038] A display device according to an embodiment of a second aspect of the present invention includes: a display module according to an embodiment of the first aspect of the present invention.

[0039] The display device according to the embodiment of the present invention can meet the requirement of high-precision curvature and ensure the yield of the subsequent process by providing the above-mentioned curved display module.

[0040] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0042] Figure 1 is a stereoscopic diagram of a curved display module according to some embodiments of the present invention;

[0043] Figure 2 yes Figure 1 The enlarged view of point A in the middle;

[0044] Figure 3 yes Figure 1 A three-dimensional image of the curved display module from another angle;

[0045] Figure 4 yes Figure 3 The enlarged view of point B in the middle;

[0046] Figure 5 yes Figure 1 Exploded view of the curved display module in the figure;

[0047] Figure 6 yes Figure 1 The curved surface in the exploded view of the module from another angle;

[0048] Figure 7 yes Figure 1 The surface in the module shows the exploded view;

[0049] Figure 8 yes Figure 1 A bottom view of the curved display module in FIG.

[0050] Fig. 9 is along Figure 8 Section view of the mid-CC line;

[0051] Fig.10 yes Fig. 9 The enlarged view of D1 in the middle;

[0052] Fig.11 yes Fig. 9 The enlarged view of D2 in the middle;

[0053] Fig.12 yes Figure 1 The main view of the curved display module in;

[0054] Fig.13 is along Fig.12 Sectional view of line E1-E1;

[0055] Fig.14 yes Fig.13 The enlarged image of F1 in the middle;

[0056] Fig.15 is along Fig.12 Sectional view along line E2-E2;

[0057] Fig.16 yes Fig.15 The enlarged image of F2 in the middle;

[0058] Fig.17 is along Fig.12 Sectional view along line E3-E3;

[0059] Fig.18 yes Fig.17 The enlarged image of F3 in the middle;

[0060] Fig.19 is along Fig.12 Sectional view along line G1-G1;

[0061] Fig. 20 yes Fig.19 The enlarged view of H1 in the middle;

[0062] Fig.21 is along Fig.12 Sectional view along line G2-G2;

[0063] Fig. 22 yes Fig.21 The enlarged view of H2 in the middle;

[0064] Fig.23 is along Fig.12 Sectional view of line G3-G3;

[0065] Fig.24 yes Fig.23 Enlarged view of H3 in the middle;

[0066] Fig.25 is along Fig.12 Sectional view along line G4-G4;

[0067] Fig.26 yes Fig.25 Enlarged view of H4 in the middle;

[0068] Fig. 27 yes Figure 1 The rear view of the curved display module in FIG.

[0069] Fig.28 yes Figure 1 The surface in the left view of the display module;

[0070] Fig.29 yes Figure 1 The right side view of the curved surface display module in;

[0071] Fig.30 yes Figure 1 The front view of the back panel of the curved display module;

[0072] Fig.31 is along Fig.30 Sectional view of the middle II line;

[0073] Fig.32 yes Fig.31 The enlarged view of J in the middle;

[0074] Fig.33 yes Figure 1 The surface in the figure shows a cross-section of a certain location of the module;

[0075] Fig.34 yes Fig.33 The enlarged view of K1 in the middle;

[0076] Fig.35 yes Fig.33 The enlarged view of K2 in the middle;

[0077] Fig.36 yes Figure 1 The rear view of the back panel of the curved display module in FIG.

[0078] Fig.37 yes Figure 1 A top view of the back panel of the curved display module;

[0079] Fig.38 yes Figure 1 A bottom view of the back panel of the curved display module;

[0080] Fig.39 is along Fig.38 Sectional view of the mid-LL line;

[0081] Fig.40 yes Fig.39 The enlarged view of the M in the middle;

[0082] Fig.41 yes Figure 1 The left side view of the back panel of the curved display module;

[0083] Fig.42 yes Figure 1The right side view of the back panel of the curved display module;

[0084] Fig.43 yes Figure 1 A schematic diagram of a curved display module in which a light source component is installed on a back panel;

[0085] Fig.44 is along Fig.43 Sectional view of line N1-N1;

[0086] Fig.45 yes Fig.44 The enlarged image of P1 in the middle;

[0087] Fig.46 is along Fig.43 Sectional view of line N2-N2;

[0088] Fig.47 yes Fig.46 The enlarged view of P2 in the middle;

[0089] Fig.48 yes Figure 1 A schematic diagram of a light source component of a curved display module;

[0090] Fig.49 yes Figure 1 A schematic diagram of a third adhesive layer of a curved display module;

[0091] Fig.50 yes Figure 1 A front view of the middle frame of the curved display module;

[0092] Fig.51 yes Fig.50 Enlarged view of the middle Q;

[0093] Fig.52 yes Figure 1 Rear view of the middle frame of the curved display module;

[0094] Fig.53 yes Figure 1 A top view of the middle frame of the curved display module;

[0095] Fig.54 yes Figure 1 A bottom view of the middle frame of the curved display module;

[0096] Fig.55 yes Fig.54 Enlarged view of R in the middle;

[0097] Fig.56 yes Figure 1 The right side view of the middle frame of the curved display module;

[0098] Fig.57 yes Figure 1 Left view of the middle frame of the curved display module.

[0099] Reference numerals:

[0100] Curved display module 100:

[0101] Back plate 1; accommodating space 10; bottom plate 11; reinforcing rib 111; contour reference 112; side plate 12; support portion 120; first sub-support portion 121; second sub-support portion 122; middle frame fixing portion 123; second buckle 1231; positioning boss 124; outlet hole 125; circuit board fixing portion 13; first fixing hole 131; positioning boss 132;

[0102] Display panel circuit board 21; second fixing hole 211; first protection cover 22; protection part 221; third fixing hole 2211; first bending edge 222; first clamping hole 2221; second bending edge 223; source chip on film 23; source chip 231; source film 232; gate chip on film 24; gate chip 241; third protection cover 25; second clamping hole 251; second protection cover 26;

[0103] Middle frame 3; first avoidance hole 31; second avoidance hole 32; avoidance groove 33; positioning groove 34; first buckle 35; third buckle 36; fourth buckle 37;

[0104] Light source driving circuit board 41; signal driving circuit board 42; fourth protective cover 43; fifth protective cover 44;

[0105] Light source component 5; light bar 51; light board 511; lamp beads 512; light bar connector 52; reflector 61; first reflective portion 611; second reflective portion 612; first optical film material 62; second optical film material 63; positioning hole 631;

[0106] Display panel 7;

[0107] First adhesive layer 81; second adhesive layer 82; third adhesive layer 83; avoidance opening 831; fourth adhesive layer 84; fifth adhesive layer 85; foam tape 86; spacer layer 87; foam layer 88;

[0108] A first fastening member 91 ; a second fastening member 92 ; and a third fastening member 93 . DETAILED DESCRIPTION

[0109] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0110] Reference below Figure 1-Figure 57 The curved display module 100 according to an embodiment of the present invention is described. The curved display module 100 can be used as the main body of a display device. For example, a protective cover plate (such as a glass cover plate) can be attached to the front of the curved display module 100, and the rear shell of the whole machine can be assembled at the back to form a display device; the curved display module 100 can also be directly inlaid as an appearance part. The curved display module 100 can be used for vehicle display, commercial display, home display, etc. Optionally, the curved display module 100 can be a direct-light-incident curved display module.

[0111] like Figure 1-Figure 10 As shown, the curved display module 100 according to the first embodiment of the present invention includes: a back plate 1, a backlight assembly, a display panel 7 and a display panel circuit board 21.

[0112] The display panel 7 may be disposed on one side of the back plate 1, for example, the display panel 7 is disposed on the front side of the back plate 1, the display panel 7 may be a liquid crystal display panel, and the back plate 1 may serve as a supporting structure to support other components of the curved display module 100. The cross section of the display panel 7 may be a curved line, for example, the cross section of the display panel 7 is formed in an arc shape convex toward the rear, and the cross section of the back plate 1 may also be a curved line, for example, the cross section of the back plate 1 is formed in an arc shape convex toward the rear, and the shapes of the display panel 7 and the back plate 1 match.

[0113] The back plate 1 includes: a bottom plate 11 and a side plate 12. The cross section of the bottom plate 11 may be in a curved shape, for example, the cross section of the bottom plate 11 may be in an arc shape convex toward the rear. The side plate 12 is formed on the outer peripheral edge of the bottom plate 11, and the side plate 12 may surround the bottom plate 11. The side plate 12 is located on a side of the bottom plate 11 adjacent to the display panel 7. The bottom plate 11 and the side plate 12 may be arranged substantially vertically. The bottom plate 11 and the side plate 12 jointly define a receiving space 10 suitable for accommodating a backlight assembly. The backlight assembly is arranged in the receiving space 10 jointly defined by the bottom plate 11 and the side plate 12. The display panel 7 is arranged on a side of the backlight assembly away from the bottom plate 11, for example, the display panel 7 is located on the front side of the square backlight assembly. The backlight assembly may provide a light source for the display panel 7. For example, when the display panel 7 is a liquid crystal display panel, the backlight assembly may provide a light source for the display panel 7.

[0114] Optionally, the display panel 7 can be a liquid crystal display panel, which may include a first substrate and a second substrate that are relatively and spaced apart from each other, a liquid crystal layer is provided between the first substrate and the second substrate, thin film transistors and color filters are provided on the side of the first substrate adjacent to the liquid crystal layer and on the side of the second substrate adjacent to the liquid crystal layer, a first polarizer is provided on the side of the first substrate away from the liquid crystal layer, and a second polarizer is provided on the side of the second substrate away from the liquid crystal layer.

[0115] The display panel circuit board 21 is electrically connected to the display panel 7, and the display panel circuit board 21 is arranged on the outer side of the side panel 12, and the outer side of the side panel 12 refers to the side of the side panel 12 facing away from the accommodating space 10. For example, the display panel circuit board 21 can be arranged on the ground side of the side panel 12 (the ground side of the side panel 12 refers to the side of the side panel 12 facing downward when the curved display module 100 is in use), the display panel circuit board 21 can also be arranged on the sky side of the side panel 12 (the sky side of the side panel 12 refers to the side of the side panel 12 facing upward when the curved display module 100 is in use), and the display panel circuit board 21 can also be arranged on the left side of the side panel 12 or the right side of the side panel 12.

[0116] Optionally, the display panel circuit board 21 may be a PCB board, and the display panel circuit board 21 and the display panel 7 may be connected via a flexible circuit board. The flexible circuit board has good bending properties, thereby conveniently realizing electrical connection between the display panel circuit board 21 and the display panel 7.

[0117] Optionally, the display panel circuit board 21 is fixedly connected to the side panel 12, so that the display panel circuit board 21 can be reliably and stably installed on the side panel 12, and the side panel 12 fixedly connected to the display panel circuit board 21 can be arc-shaped, and the side panel 12 is arc-shaped, which means that the side panel 12 extends in an arc shape in the left and right directions, and the bottom plate 11 can be arc-shaped, and the bottom plate 11 is arc-shaped, which means that the bottom plate 11 extends in an arc shape in the left and right directions. The fixed connection can limit relative displacement in at least one direction.

[0118] It should be noted that the directions "up, down, front, back, left, and right" described in the present invention are all relative to the direction of the user when using the curved display module. The direction of the curved display module toward the user is the front, and the direction away from the user is the back.

[0119] By arranging the display panel circuit board 21 on the outside of the side plate 12, compared with arranging the display panel circuit board 21 on the rear side of the back plate 1, the influence of the display panel circuit board 21 on the curvature of the module can be significantly reduced, the high-precision curvature requirements can be met, and the yield rate of the subsequent process can be guaranteed. In addition, the risk of tearing the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 can be reduced.

[0120] For example, when the display panel circuit board 21 is arranged on the rear side of the back plate 1, the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 needs to be bent at least twice, for example, the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 is arranged in a U shape; and when the display panel circuit board 21 is arranged on the outside of the side plate 12, the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 can be bent only once, for example, the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 is arranged in an L shape. It can be seen that by arranging the display panel circuit board 21 on the outside of the side plate 12, compared with arranging the display panel circuit board 21 on the rear side of the back plate 1, the number of bending times of the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 is reduced, thereby reducing the risk of tearing of the flexible circuit board connected between the display panel circuit board 21 and the display panel 7.

[0121] Further, the bottom plate 11 may be in an arc shape, for example, the bottom plate 11 is formed in an arc shape convex toward the rear, and the side plate 12 fixedly connected to the display panel circuit board 21 may be in an arc shape. When the display panel circuit board 21 is arranged on the rear side of the back plate 1, the portion of the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 located on the rear side of the bottom plate 11 extends in an arc shape, so that the portion of the flexible circuit board located on the rear side of the bottom plate 11 is subjected to a large tensile stress, which easily causes the portion of the flexible circuit board located on the rear side of the bottom plate 11 to tear, and also makes the connection between the flexible circuit board and the display panel circuit board 21 easy to tear. However, the present invention arranges the display panel circuit board 21 on the outside of the side plate 12, so that the portion of the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 located on the rear side of the bottom plate 11 is cancelled, so that the stress on the flexible circuit board is reduced, and the tearing risk of the flexible circuit board connected between the display panel circuit board 21 and the display panel 7 is further reduced, and the connection between the flexible circuit board and the display panel circuit board 21 is located on the side plate 12, which also reduces the tearing risk of the connection between the flexible circuit board and the display panel circuit board 21.

[0122] Furthermore, by configuring the back panel 1 to include the above-mentioned bottom panel 11 and side panel 12, and by arranging the backlight assembly in the accommodating space 10 defined by the bottom panel 11 and the side panel 12, the side panel 12 can serve as a bearing structure for a portion of the structure of the backlight assembly, and the separately configured rubber frame structure for mounting and fixing a portion of the structure of the backlight assembly can be omitted. For example, the lower rubber frame in the related art can be omitted, so that the back panel 1 has both the functions of the back panel 1 itself and the functions of the lower rubber frame in the related art, thereby further reducing the interference factors of the module curvature and reducing the manufacturing cost.

[0123] The statistical tolerance curvature accuracy of the curved display module 100 of the present invention can reach 2.5%. For example, when the curvature radius of the curved display module 100 of the present embodiment is 4200mm, the statistical tolerance is ±1mm. However, the statistical tolerance curvature accuracy of the curved display module in the related art can only reach 4.5%. For example, when the curvature radius of the curved display module in the related art is 4200mm, the statistical tolerance is as low as ±2mm. It can be seen that the statistical tolerance curvature accuracy of the curved display module 100 of the present invention is significantly improved, which can meet the occasions with higher precision curvature requirements. For example, when it is necessary to attach a protective cover plate (such as a glass cover plate) to the front of the curved display module 100 and assemble the rear shell of the whole machine to form a display device, the curved display module 100 can achieve a higher precision curvature requirement, thereby ensuring the functional requirements of the subsequent assembly of the whole machine and the visual requirements of the seamless appearance; for another example, when the curved display module 100 is inlaid as an appearance part, it can facilitate the subsequent inlay assembly and achieve the visual requirements of the seamless appearance.

[0124] According to the curved display module 100 of the embodiment of the present invention, by arranging the display panel circuit board 21 on the outside of the side plate 12, the influence of the display panel circuit board 21 on the curvature of the module can be significantly reduced, the high-precision curvature requirements can be met, and the yield rate of the subsequent process can be guaranteed. In addition, the risk of tearing of the flexible circuit board connected between the display panel 7 and the display panel circuit board 21 can be reduced.

[0125] According to some embodiments of the present invention, referring to Figure 1-Figure 10 , the display panel circuit board 21 can be arranged on the ground side of the side panel 12, and the ground side of the side panel 12 refers to the side of the side panel 12 facing downward when the curved display module 100 is in use. In this way, the ground side space of the side panel 12 can be fully utilized, and the display panel circuit board 21 can be installed and fixed on the ground side of the side panel 12. This position is convenient for installation and has sufficient space, which can meet the spatial assembly requirements of the display panel circuit board 21, and can significantly reduce the impact of the display panel circuit board 21 on the curvature of the module, which can meet the requirements of high-precision curvature and ensure the yield of the subsequent process. Among them, when the display panel circuit board 21 is installed on the ground side of the side panel 12, the shape of the display panel circuit board 21 can match the shape of the ground side of the side panel 12.

[0126] According to some embodiments of the present invention, referring to Figure 9-Figure 26 , Fig.39 and Fig.40The side plate 12 includes a support portion 120 and a circuit board fixing portion 13. The support portion 120 is formed on the outer periphery of the bottom plate 11. The support portion 120 can surround the bottom plate 11. The support portion 120 and the bottom plate 11 jointly define the accommodation space 10. The circuit board fixing portion 13 is connected to the outer side of the side plate 12. At least a portion of the circuit board fixing portion 13 is spaced apart from the support portion 120. The circuit board fixing portion 13 can be arranged substantially parallel to at least a portion of the support portion 120. The display panel circuit board 21 is arranged on the outer side of the circuit board fixing portion 13 (the outer side of the circuit board fixing portion 13 refers to the side of the circuit board fixing portion 13 away from the accommodation space 10) and the display panel circuit board 21 is connected to the circuit board fixing portion 13.

[0127] By configuring the back panel 1 to include the above-mentioned bottom panel 11 and side panel 12, and configuring the side panel 12 to include a support portion 120 and a circuit board fixing portion 13, and by configuring the backlight assembly in the accommodating space 10 defined by the bottom panel 11 and the support portion 120, the support portion 120 can serve as a bearing structure for a portion of the structure of the backlight assembly, and a middle frame structure that is separately configured for mounting and fixing a portion of the structure of the backlight assembly can be omitted. For example, the lower glue frame in the related art can be omitted, so that the back panel 1 has both the function of the back panel 1 itself and the function of the lower glue frame in the related art, thereby further reducing the interference factor of the module curvature and reducing the manufacturing cost. Furthermore, by providing a circuit board fixing portion 13 on the outer side of the support portion 120, a double-wall structure is formed on the outer side of the back panel 1, so that the inner wall (i.e., a portion of the support portion 120, for example, when the circuit board fixing portion 13 is provided on the ground side of the support portion 120, the portion of the support portion 120 located on the ground side of the back panel 1 is the inner wall) can be installed to fix a partial structure of the backlight assembly, so that the outer wall (i.e., the circuit board fixing portion 13) can be installed to fix the display panel circuit board 21, which not only eliminates the lower rubber frame in the related technology, but also facilitates the installation and fixation of the display panel circuit board 21.

[0128] In some optional embodiments of the present invention, referring to Figure 9-Figure 26 , Fig.39 and Fig.40 The support portion 120 includes: a first sub-support portion 121 and a second sub-support portion 122, one end of the first sub-support portion 121 is connected to the bottom plate 11, and the other end of the first sub-support portion 121 extends toward the direction adjacent to the display panel 7, the first sub-support portion 121 can be arranged vertically with the bottom plate 11, the circuit board fixing portion 13 is located on the outside of the first sub-support portion 121 (the outside of the first sub-support portion 121 refers to the side of the first sub-support portion 121 away from the accommodating space 10), the circuit board fixing portion 13 is opposite to the first sub-support portion 121 and is arranged at a distance, and the circuit board fixing portion 13 and the first sub-support portion 121 can be arranged in parallel.

[0129] One end of the second sub-support portion 122 is connected to the other end of the first sub-support portion 121, and the other end of the second sub-support portion 122 extends outward (the outward refers to the direction away from the accommodating space 10), and the other end of the second sub-support portion 122 is connected to the circuit board fixing portion 13. The second sub-support portion 122 and the first sub-support portion 121 and the circuit board fixing portion 13 can be arranged vertically, and the second sub-support portion 122 can be arranged roughly parallel to the bottom plate 11. The second sub-support portion 122 can play a role in connecting the first sub-support portion 121 and the circuit board fixing portion 13, so that one side of the back plate 1 (for example, the ground side of the back plate 1) forms a double-wall structure. By setting the support portion 120 to include the above-mentioned first sub-support portion 121 and the second sub-support portion 122, it is convenient to support and fix part of the structure of the backlight assembly.

[0130] For example, in some specific examples of the present invention, referring to Figure 9-Figure 26 , Fig.39 and Fig.40 The backlight assembly includes: a light source component 5, a reflector 61 and a first optical film material 62. The light source component 5 is arranged on the bottom plate 11. The light source component 5 can be connected and fixed on the bottom plate 11 through the second adhesive layer 82. The second adhesive layer 82 can be a double-sided adhesive layer. The light source component 5 can provide a light source for the display panel 7. The reflector 61 includes a first reflective portion 611 and a second reflective portion 612. The first reflective portion 611 is arranged on the light source component 5 and is located on a side of the light source component 5 away from the bottom plate 11. The first reflective portion 611 can be connected and fixed on the light source component 5 through the third adhesive layer 83. The third adhesive layer 83 can be a double-sided adhesive layer. The first reflective portion 611 can reflect the light emitted by the light source component 5 to the display panel 7. The second reflective portion 612 is arranged on the first sub-support portion 121, so as to facilitate the installation and fixation of the second reflective portion 612. The first optical film material 62 is arranged on the second sub-support portion 122 and the first optical film material 62 is located on a side of the second sub-support portion 122 adjacent to the display panel 7. By configuring the support portion 120 to include the first sub-support portion 121 and the second sub-support portion 122 , installation and fixation of the second reflective portion 612 and the first optical film material 62 are facilitated.

[0131] The first optical film material 62 can fully diffuse the light emitted by the light source component 5 so that the light is evenly irradiated to the display panel 7, making the display more uniform. For example, the first optical film material 62 can be a diffusion plate.

[0132] In some embodiments of the present invention, reference Fig.10 , Figure 31-Figure 35The backlight assembly may include a second optical film material 63, which may play a role in brightness enhancement. For example, the second optical film material may be a brightness enhancement film, and the second optical film material 63 may be a single layer, or may be a plurality of layers stacked together. A positioning boss 124 is formed on one side of the side panel 12 adjacent to the display panel 7, for example, a positioning boss 124 is formed on one side of the second sub-support portion 122 adjacent to the display panel 7, and a positioning hole 631 is formed on the second optical film material 63 to cooperate with the positioning boss 124. When the second optical film material 63 is installed on the back panel 1, the second optical film material 63 may be conveniently installed and fixed on the back panel 1 through the cooperation of the positioning hole 631 on the second optical film material 63 and the positioning boss 124 on the side panel 12.

[0133] In some optional embodiments of the present invention, referring to Fig.10 The curved display module 100 includes: a middle frame 3, which is arranged on the side of the side plate 12 adjacent to the display panel 7 and connected to the side plate 12. The middle frame 3 can be a plastic part or a metal part. For example, the material of the middle frame 3 can be PC (Polycarbonate) + 10% GF (Glass Fiber), so that the middle frame 3 has a higher structural strength and meets the requirements. The middle frame 3 can be black. The middle frame 3 abuts against the portion of the outer periphery of the optical film material adjacent to the optical film material. When the optical film material includes the first optical film material 62 and the second optical film material 63, the portion of the outer periphery of the middle frame 3 adjacent to the second optical film material 63 can abut against the second optical film material 63. The display panel 7 is located on the side of the middle frame 3 away from the optical film material, and the display panel 7 is supported on the middle frame 3.

[0134] By setting the middle frame 3 on the side of the side panel 12 adjacent to the display panel 7, the display panel 7 can be easily installed and fixed, and the middle frame 3 is abutted against the outer peripheral edge of the optical film material adjacent to the optical film material, so that the entire curved display module 100 has a compact and stable structure. By setting the middle frame 3 on the side of the side panel 12 adjacent to the display panel 7, the side panel 12 of the back panel 1 can realize the function of the lower plastic frame in the related art, which not only eliminates the lower plastic frame in the related art, but also realizes a single-layer middle frame design, which is conducive to reducing the interference factors affecting the curvature of the module, and by installing and fixing the display panel 7 on the middle frame 3, a borderless design can be realized, and the front frame in the related art is eliminated, thereby eliminating the interference of the front frame on the curvature of the module, and further improving the curvature accuracy and stability of the curved display module 100.

[0135] According to some embodiments of the present invention, referring to Fig. 9 and Fig.10, there is a first fixing hole 131 on the side panel 12. For example, when the display panel circuit board 21 is arranged on the ground side of the side panel 12, the first fixing hole 131 is formed on the ground side of the side panel 12. A second fixing hole 211 corresponding to the first fixing hole 131 is formed on the display panel circuit board 21. A fastener (such as the third fastener 93 described below) is inserted through the first fixing hole 131 and the second fixing hole 211 to connect the display panel circuit board 21 to the back panel 1. The fastener may be a screw. Among them, a first adhesive layer 81 may be provided between the display panel circuit board 21 and the side panel 12. The first adhesive layer 81 may be a double-sided adhesive layer to bond the display panel circuit board 21 to the side panel 12. By inserting the fastener through the first fixing hole 131 and the second fixing hole 211, the display panel circuit board 21 can be more firmly installed and fixed on the side panel 12.

[0136] When the side plate 12 includes the above-mentioned supporting portion 120 and the circuit board fixing portion 13 , the above-mentioned first fixing hole 131 is formed on the circuit board fixing portion 13 .

[0137] In some optional embodiments of the present invention, referring to Fig. 9 and Fig.10 , a positioning boss 132 for positioning the display panel circuit board 21 is formed on the side plate 12. For example, when the display panel circuit board 21 is arranged on the ground side of the side plate 12, a first fixing hole 131 is formed on the ground side of the side plate 12, and a positioning boss 132 for positioning the display panel circuit board 21 is formed on the ground side of the side plate 12. The positioning boss 132 is arranged around the outer peripheral edge of the first fixing hole 131, and the positioning boss 132 can be annular, and the height range of the positioning boss 132 can be 0.25-0.35mm, for example, the height of the positioning boss 132 can be 0.3mm. A second fixing hole 211 corresponding to the first fixing hole 131 is formed on the display panel circuit board 21, and the positioning boss 132 cooperates with the second fixing hole 211. A fastener (such as the third fastener 93 described below) is inserted into the first fixing hole 131 and the second fixing hole 211 to connect the display panel circuit board 21 to the back plate 1, and the fastener can be a screw. By providing the above-mentioned positioning boss 132 on the side panel 12, when the display panel circuit board 21 is installed on the back panel 1, the positioning boss 132 on the side panel 12 can be cooperated and accommodated in the first fixing hole 131 on the display panel circuit board 21, so that the display panel circuit board 21 can be initially positioned on the back panel 1, and then the display panel circuit board 21 can be installed and fixed on the back panel 1 by fasteners passing through the first fixing hole 131 and the second fixing hole 211.

[0138] When the side plate 12 includes the above-mentioned supporting portion 120 and the circuit board fixing portion 13 , the above-mentioned positioning boss 132 is formed on the circuit board fixing portion 13 .

[0139] In some optional embodiments of the present invention, referring to Fig. 9 and Fig.10 The curved display module 100 includes: a first protective cover 22, at least a portion of which is disposed on the outer side of the side plate 12 and covers the display panel circuit board 21. By disposing the first protective cover 22 on the outer side of the side plate 12, the display panel circuit board 21 can be protected. At the same time, since the first protective cover 22 is disposed on the outer side of the side plate 12, the influence of the first protective cover 22 on the curvature of the curved display module 100 can be reduced, and the curvature accuracy and stability of the curved display module 100 can be further improved. Wherein, when the display panel circuit board 21 is disposed on the ground side of the side plate 12, the first protective cover 22 is also located on the ground side of the side plate 12, so that the first protective cover 22 and the display panel circuit board 21 are located on the same side of the side plate 12, and the first protective cover 22 covers the display panel circuit board 21.

[0140] When the side plate 12 includes the above-mentioned supporting portion 120 and the circuit board fixing portion 13 , at least a portion of the first protective cover 22 is disposed outside the circuit board fixing portion 13 .

[0141] Further, refer to Fig.10 , a third fixing hole 2211 is provided on the first protective cover 22, and fasteners are provided through the first fixing hole 131, the second fixing hole 211 and the third fixing hole 2211 to connect the display panel circuit board 21 and the first protective cover 22 to the back plate 1. For example, when the display panel circuit board 21 and the first protective cover 22 are assembled on the back plate 1, the display panel circuit board 21 can be preliminarily fixed on the back plate 1 through the first adhesive layer 81, and then fasteners are provided through the first fixing hole 131, the second fixing hole 211 and the third fixing hole 2211 to connect the display panel circuit board 21 and the first protective cover 22 to the back plate 1. As a result, the first protective cover 22 and the display panel circuit board 21 share fasteners, which reduces the number of parts and components, and also reduces the assembly process, and also facilitates the installation and fixing of the display panel circuit board 21 and the first protective cover 22 on the back plate 1.

[0142] According to some embodiments of the present invention, referring to Figure 7-10, the curved display module 100 further includes: a first protective cover 22, at least a portion of which is disposed on the outer side of the side plate 12, the first protective cover 22 and the display panel circuit board 21 are located on the same side of the side plate 12, and the first protective cover 22 is disposed on the display panel circuit board 21, and the first protective cover 22 is used to protect the display panel circuit board 21. By disposing the first protective cover 22 on the outer side of the side plate 12, the display panel circuit board 21 can be protected, and at the same time, since the first protective cover 22 is disposed on the outer side of the side plate 12, the influence of the first protective cover 22 on the curvature of the curved display module 100 can be reduced, and the curvature accuracy and stability of the curved display module 100 can be further improved. Among them, when the display panel circuit board 21 is disposed on the ground side of the side plate 12, the first protective cover 22 is also located on the ground side of the side plate 12, so that the first protective cover 22 and the display panel circuit board 21 are located on the same side of the side plate 12, and the first protective cover 22 is disposed on the display panel circuit board 21.

[0143] In some optional embodiments of the present invention, referring to Figure 7-Figure 26 as well as Figure 50-Figure 57 The curved display module 100 includes: a middle frame 3, at least a portion of which is disposed on a side of the back plate 1 adjacent to the display panel 7, and the display panel 7 is supported on the middle frame 3. By disposing the middle frame 3 on a side of the back plate 1 adjacent to the display panel 7, the display panel 7 can be easily installed and fixed, a borderless design can be achieved, and the front frame in the related art is eliminated, thereby eliminating the interference of the front frame on the curvature of the module, and further improving the curvature accuracy and stability of the curved display module 100. Optionally, the first protective cover 22 can be connected to the back plate 1, and the first protective cover 22 can be connected to both the back plate 1 and the middle frame 3.

[0144] Among them, the first protective cover 22 may include a protective portion 221 and a first bent edge 222, and the protective portion 221 is located on the outer side of the side panel 12 and / or the outer side of the middle frame 3 (the outer side of the middle frame 3 refers to the side of the middle frame 3 away from the accommodating space 10). The entire protective portion 221 can be located on the outer side of the side panel 12, and the protective portion 221 is connected to the side panel 12; the entire protective portion 221 can also be located on the outer side of the middle frame 3, and the protective portion 221 is connected to the middle frame 3; or the protective portion 221 is located on the outer side of the side panel 12 and the outer side of the middle frame 3 (a part of the protective portion 221 is located on the outer side of the side panel 12, and another part of the protective portion 221 is located on the outer side of the middle frame 3). For example, when the display panel circuit board 21 is arranged on the ground side of the side panel 12, the protective portion 221 is located on the ground side of the side panel 12 and / or the ground side of the middle frame 3. The first bending edge 222 is located on a side of the protection portion 221 adjacent to the display panel 7 (for example, the first bending edge 222 is located on the front side of the protection portion 221), and the first bending edge 222 abuts against the side of the middle frame 3 adjacent to the display panel 7 (for example, the first bending edge 222 abuts against the front side of the middle frame 3). By providing the first protective cover 22 with the above-mentioned structure including the protection portion 221 and the first bending edge 222, the structure of the first protective cover 22 is simple, and it is convenient to cover the first protective cover 22 on the outside of the display panel circuit board 21 to protect the display panel circuit board 21, and the first bending edge 222 abuts against the side of the middle frame 3 adjacent to the display panel 7, so that the first protective cover 22 can be conveniently installed and fixed on the back plate 1 and / or the middle frame 3, and the overall structure of the curved display module 100 is compact, stable and reliable.

[0145] Further, refer to Figure 7-Figure 26 as well as Figure 50-Figure 57 The first protective cover 22 may further include a second bending edge 223, the second bending edge 223 is located on a side of the protective portion 221 away from the display panel (for example, the second bending edge 223 is located on the rear side of the protective portion 221), the second bending edge 223 abuts against the side of the side panel 12 facing away from the display panel 7 (for example, the second bending edge 223 abuts against the rear side of the side panel 12), for example, the second bending edge 223 abuts against the side of the above-mentioned circuit board fixing portion 13 facing away from the display panel 7. By setting the first protective cover 22 with the above-mentioned structure including the protective part 221, the first bending edge 222 and the second bending edge 223, the first protective cover 22 is set in a U-shaped structure, so that the structure of the first protective cover 22 is simple, and it is convenient to set the first protective cover 22 on the outside of the display panel circuit board 21 to protect the display panel circuit board 21, and the first bending edge 222 is abutted against the side of the middle frame 3 adjacent to the display panel 7, and the second bending edge 223 is abutted against the surface of the side panel 12 away from the display panel 7, so that the first protective cover 22 can be conveniently installed and fixed on the back panel 1 and / or the middle frame 3, and the overall structure of the curved display module 100 is compact, stable and reliable.

[0146] According to some embodiments of the present invention, referring to Figure 9-Figure 26 , Figure 43-Figure 49 The backlight assembly includes: a light source component 5 and a reflector 61. The light source component 5 is arranged on the bottom plate 11. The light source component 5 can be connected and fixed on the bottom plate 11 through the second adhesive layer 82. The second adhesive layer 82 can be a double-sided adhesive layer. The light source component 5 can provide a light source for the display panel 7. The reflector 61 includes a first reflective portion 611 and a second reflective portion 612. The first reflective portion 611 is arranged on the light source component 5 and is located on a side of the light source component 5 away from the bottom plate 11. The first reflective portion 611 can be connected and fixed on the light source component 5 through the third adhesive layer 83. The third adhesive layer 83 can be a double-sided adhesive layer. The first reflective portion 611 can reflect the light emitted by the light source component 5 toward the back to the display panel 7. The second reflective portion 612 is arranged on the side plate 12. The second reflective portion 612 can be connected and fixed on the side plate 12 through the fourth adhesive layer 84. The fourth adhesive layer 84 can be a double-sided adhesive layer. The second reflective portion 612 can ensure uniform light mixing at the edge and avoid dark shadow areas.

[0147] According to some embodiments of the present invention, referring to Fig.10 , Fig.18 and Fig.24 The curved display module 100 includes a COF assembly, which is arranged on the outside of the side panel 12 to reduce the influence of the COF assembly on the curvature of the module. The COF assembly is used to transmit the driving signal to the display panel 7. The COF assembly may include a source COF 23 (Source-Chip On Film, S-COF for short) and a gate COF 24 (Gate-Chip On Film, G-COF for short). The source COF 23 may transmit the source driving signal to the source line on the substrate of the display panel 7, and the gate COF 24 may transmit the gate driving signal to the gate line on the substrate of the display panel 7.

[0148] In some embodiments of the present invention, reference Fig.10 , Fig.18 and Fig.24The chip-on-film assembly includes a source chip-on-film 23. The source chip-on-film 23 and the display panel circuit board 21 are located on the same side of the side panel 12. For example, the display panel circuit board 21 is located on the ground side of the side panel 12, and the source chip-on-film 23 of the curved display module 100 is also located on the ground side of the side panel 12. On the basis of arranging the display panel circuit board 21 on the outside of the side panel 12, the outer space of the side panel 12 is further fully utilized, and the source chip-on-film 23 and the display panel circuit board 21 are located on the same side of the side panel 12. For example, the source chip-on-film 23 and the display panel circuit board 21 are located on the ground side of the side panel 12. This position is easy to install and has sufficient space to meet assembly requirements. It can further reduce the impact on the module curvature and further improve the curvature accuracy of the curved display module 100.

[0149] Furthermore, the curved display module 100 further includes a second protective cover 26, which is disposed on the outer side of the side panel 12 and is covered on the source chip-on-chip film 23. The second protective cover 26 and the source chip-on-chip film 23 are located on the same side of the side panel 12. For example, when the source chip-on-chip film 23 is disposed on the ground side of the side panel 12, the second protective cover 26 is disposed on the ground side of the side panel 12, and the second protective cover 26 can protect the source chip-on-chip film 23. On the basis of disposing the display panel circuit board 21 on the outer side of the side panel, the outer space of the side panel 12 is further fully utilized, and the source chip-on-chip film 23 and the second protective cover 26 for protecting the source chip-on-chip film 23 are installed and fixed on the outer side of the side panel 12. The installation at this position is convenient, and the space is relatively sufficient to meet the assembly requirements. Moreover, the influence on the curvature of the module can be further reduced, and the curvature accuracy of the curved display module 100 can be further improved.

[0150] In some specific embodiments of the present invention, referring to Fig.10 and Fig.18 The curved display module 100 includes the above-mentioned first protective cover 22 and the second protective cover 26. At least a part of the first protective cover 22 is arranged on the outside of the side plate 12 and the first protective cover 22 is arranged on the display panel circuit board 21. The first protective cover 22 is used to protect the display panel circuit board 21. By arranging the first protective cover 22 on the outside of the side plate 12, the display panel circuit board 21 can be protected. At the same time, since the first protective cover 22 is arranged on the outside of the side plate 12, the influence of the first protective cover 22 on the curvature of the curved display module 100 can be reduced, and the curvature accuracy and stability of the curved display module 100 can be further improved. Optionally, the second protective cover 26 and the first protective cover 22 are the same protective cover, which can reduce the number of parts, simplify the installation process, and reduce the manufacturing cost.

[0151] In some optional embodiments of the present invention, referring to Fig.18A spacer layer 87 is provided between the second protective cover 26 and the source chip-on-chip film 23. For example, when the second protective cover 26 and the first protective cover 22 are the same protective cover, a spacer layer 87 is provided between the first bent edge 222 of the first protective cover 22 and the source chip-on-chip film 23. Thus, the source chip-on-chip film 23 can be protected from being worn by the second protective cover 26. Optionally, the spacer layer 87 can be an adhesive tape, which facilitates the installation and fixing of the spacer layer 87 between the second protective cover 26 and the source chip-on-chip film 23.

[0152] In some embodiments of the present invention, the COF assembly includes a gate COF film 24, and the gate COF film 24 and the display panel circuit board 21 are located on different sides of the side panel 12, for example, the display panel circuit board 21 is arranged on the ground side of the side panel 12, and the gate COF film 24 of the curved display module 100 is arranged on the left and right sides of the side panel 12. The gate COF film 24 and the display panel circuit board 21 are located on different sides of the side panel 12, for example, on the basis of arranging the display panel circuit board 21 on the ground side of the side panel 12, the space on the left and right sides of the side panel 12 is further fully utilized, and the gate COF film 24 is installed and fixed on the left and right sides of the side panel 12, and the installation at this position is convenient, the space is relatively sufficient, and the assembly requirements can be met, and the influence on the module curvature can be further reduced, and the curvature accuracy of the curved display module 100 can be further improved.

[0153] Furthermore, the curved display module 100 further includes a third protective cover 25, which is disposed on the outer side of the side plate 12 and is covered on the gate chip film 24, and the third protective cover 25 can protect the gate chip film 24. On the basis of disposing the display panel circuit board 21 on the outer side of the side plate 12, the outer space of the side plate 12 is further fully utilized, and the gate chip film 24 and the third protective cover 25 for protecting the gate chip film 24 are installed and fixed on the outer side of the side plate 12, and the installation at this position is convenient, the space is relatively sufficient, and the assembly requirements can be met, and the impact on the module curvature can be further reduced, and the curvature accuracy of the curved display module 100 can be further improved. Optionally, a foam layer 88 is provided between the third protective cover 25 and the gate chip film 24 to protect the gate chip film 24.

[0154] In some optional embodiments of the present invention, referring to Fig.10 , Fig.18 , Figure 50-Figure 57The curved display module 100 includes: a middle frame 3, which is arranged on the side of the back plate 1 adjacent to the display panel 7, and the display panel 7 is supported on the middle frame 3. By arranging the middle frame 3 on the side of the back plate 1 adjacent to the display panel 7, the display panel 7 can be easily installed and fixed, and a frameless design can be realized, eliminating the front frame in the related art, thereby eliminating the interference of the front frame on the curvature of the module, and further improving the curvature accuracy and stability of the curved display module 100. The chip-on-film assembly is arranged on the outside of the middle frame 3, and the middle frame 3 is provided with an avoidance hole for avoiding the chip-on-film assembly, thereby preventing the chip-on-film assembly from being squeezed and causing the performance of the display panel 7 to decline.

[0155] For example, when the chip-on-chip film assembly includes a source chip-on-chip film 23, the source chip-on-chip film 23 is disposed on the outer side of the middle frame 3, for example, the source chip-on-chip film 23 can be disposed on the ground side of the middle frame 3, and the source chip-on-chip film 23 can be connected and fixed on the middle frame 3, which facilitates the installation and fixation of the source chip-on-chip film 23. The outer side of the middle frame 3 (for example, the ground side of the middle frame 3) is provided with a first avoidance hole 31 for avoiding the source chip 231 of the source chip-on-chip film 23, which can avoid squeezing the source chip 231 of the source chip-on-chip film 23 and causing the performance of the display panel 7 to deteriorate. The outer side of the middle frame 3 (for example, the ground side of the middle frame 3) can also be provided with an avoidance groove 33 for avoiding the source film 232 of the source chip-on-chip film 23, which can avoid squeezing the source film 232 of the source chip-on-chip film 23 and causing the performance of the display panel 7 to deteriorate.

[0156] For example, when the chip-on-chip film assembly includes a gate chip-on-chip film 24, the gate chip-on-chip film 24 is arranged on the outside of the middle frame 3. For example, the gate chip-on-chip film 24 can be arranged on the left and right sides of the middle frame 3. The gate chip-on-chip film 24 can be connected to the middle frame 3. The middle frame 3 is provided with a second avoidance hole 32 for avoiding the gate chip 241 of the gate chip-on-chip film 24. The left and right sides of the middle frame 3 are provided with gate chip-on-chip films 24. The left and right ends of the middle frame 3 are provided with second avoidance holes 32, which facilitates the installation and fixation of the gate chip-on-chip film 24. The second avoidance holes 32 arranged on the middle frame 3 can avoid squeezing the source chip 231 of the gate chip-on-chip film 24 and causing the performance of the display panel 7 to decline.

[0157] Optionally, when the curved display module 100 includes the third protective cover 25 and the middle frame 3, the third protective cover 25 is arranged on the outside of the middle frame 3 (for example, the third protective cover 25 is arranged on the left and right sides of the middle frame 3) and the third protective cover 25 is arranged on the gate chip film 24, and the third protective cover 25 can protect the gate chip film 24. On the basis of setting the display panel circuit board 21 on the outside of the side plate 12, the outer space of the side plate 12 is further fully utilized, and the gate chip film 24 and the third protective cover 25 for protecting the gate chip film 24 are installed and fixed on the outside of the side plate 12, and the installation at this position is convenient, the space is relatively sufficient, and the assembly requirements can be met, and the impact on the module curvature can be further reduced, and the curvature accuracy of the curved display module 100 can be further improved. Optionally, a foam layer 88 is provided between the third protective cover 25 and the gate chip film 24 to protect the gate chip film 24.

[0158] According to some embodiments of the present invention, referring to Fig.10 The curved display module 100 includes a middle frame 3, which is arranged on a side of the back plate 1 adjacent to the display panel 7, and the display panel 7 is connected to the middle frame 3. By arranging the middle frame 3 on a side of the back plate 1 adjacent to the display panel 7, the display panel 7 can be easily installed and fixed, a frameless design can be achieved, and the front frame in the related art is eliminated, thereby eliminating the interference of the front frame on the module curvature, and further improving the curvature accuracy and stability of the curved display module 100.

[0159] According to some optional embodiments of the present invention, referring to Fig.10 The display panel 7 and the middle frame 3 can be connected by a foam tape 86 (such as a high-strength adhesive foam tape 86, a VHB double-sided adhesive foam tape), which can ensure that the display panel 7 is stably fixed on the middle frame 3. The foam tape 86 has excellent flexibility and good adhesiveness, which can firmly fix the display panel 7 on the middle frame 3, and can provide sufficient buffering for the display panel 7 under vibration conditions to prevent the display panel 7 from being damaged due to external forces. Optionally, a positioning groove 34 for accommodating the foam tape 86 is formed on the middle frame 3, so that the foam tape 86 can be conveniently accommodated and fixed on the middle frame 3, which facilitates the connection operation between the display panel 7 and the middle frame 3.

[0160] According to some embodiments of the present invention, referring to Figure 7-10 , Figure 43-Figure 48The backlight assembly includes a light source component 5, which is disposed on a bottom plate 11. The light source component 5 includes a plurality of light bars 51, which are arranged at intervals in the up-down direction, and each light bar 51 extends in the left-right direction. Thus, by configuring the light source component 5 to include a plurality of light bars 51, and the plurality of light bars 51 are arranged at intervals in the up-down direction, and each light bar 51 extends in the left-right direction, the light bars 51 are arranged horizontally (in the left-right direction), and the size of the bottom plate 11 in the up-down direction is significantly smaller than the size of the bottom plate 11 in the left-right direction. Compared with arranging the light bars 51 longitudinally (in the up-down direction), the number of light bars 51 can be significantly reduced. For example, the number of light bars 51 can be reduced from 16 arranged longitudinally to 6 arranged transversely. This can not only significantly reduce the number of light bars 51, but also make the installation of the light bars 51 easier, and can eliminate the adapter plate used when the light bars 51 are arranged longitudinally (since the number of light bars 51 arranged longitudinally is relatively large, an adapter plate is required to electrically connect the light bars 51 to the corresponding circuit board). Optionally, the light bar 51 may be an LED light bar.

[0161] It should be explained that the “plurality” mentioned in the present invention refers to two or more than two.

[0162] According to some optional embodiments of the present invention, referring to Figure 7-10 , Figure 43-Figure 49 The light source component 5 includes a light bar connector 52 for controlling the light bar 51. The light bar connector 52 can be connected to the left or right side of the light bar 51. For example, the light bar connector 52 can be welded to the left or right end of the light bar 51. Each light bar 51 can be connected to the corresponding circuit board through the light bar connector 52. A wire outlet hole 125 for the light bar connector 52 to pass through is formed on the side panel 12, so that the light wire of the light bar connector 52 can pass through the outlet hole and be connected to the corresponding circuit board. The number of wire outlet holes 125, the number of light bar connectors 52 and the number of light bars 51 are the same and correspond to each other one by one. For example, the number of light bars 51, light bar connectors 52 and wire outlet holes 125 can be 6. Each wire outlet hole 125 is arranged opposite to the corresponding light bar connector 52, thereby reducing the length of the wiring harness of the light bar connector 52.

[0163] When the curved display module 100 includes the above-mentioned backlight assembly and the backlight assembly includes the above-mentioned first reflector 611, a third adhesive layer 83 for connecting and fixing the first reflector 611 to the light source component 5 is provided with an escape opening 831 for evading the light bar connector 52. The light bar 51 may include a light board 511 and lamp beads 512 disposed on the light board 511, the light bar connector 52 may be disposed on the light board 511, and the control signal of the lamp beads 512 may be conducted to a corresponding circuit board (e.g., the light source driving circuit board 41 described below) disposed on the back panel 1 through the light bar connector 52 on the light board 511 via a lamp line.

[0164] Optionally, refer to Figure 43-Figure 49 , wherein a part of the light bar connectors 52 are located on the left side of the corresponding light bar 51, and another part of the light bar connectors 52 are located on the right side of the corresponding light bar 51. In this way, a part of the multiple outlet holes 125 corresponding to the multiple light bar connectors 52 are located on the left side of the side plate 12 located on the bottom plate 11, and another part of the multiple outlet holes 125 are located on the right side of the side plate 12 located on the bottom plate 11, which can avoid the problem of local structural weakness of the back plate 1 due to the concentration of the outlet holes 125 on the same side of the back plate 1, and help to reduce the length of the light wires of the light bar connectors 52.

[0165] For example, in Figure 43-Figure 49 In the example, the number of light strips 51, light strip connectors 52 and wire outlet holes 125 are all 6, and the 6 light strips 51 are arranged in the up and down directions, wherein the light strip connectors 52 of the three light strips 51 located on the upper part of the bottom plate 11 are all located at the right end of the corresponding light strip 51, and the three light strip connectors 52 located on the lower part of the bottom plate 11 are all located at the left end of the corresponding light strip 51, and the side plate 12 is located on the right side of the bottom plate 11. Three wire outlet holes 125 are formed, and the three wire outlet holes 125 are respectively corresponding to the three light strip connectors 52 located on the upper part of the back plate 1; three wire outlet holes 125 are formed on the left side of the bottom plate 11. The three wire outlet holes 125 are respectively corresponding to the three light strip connectors 52 located on the lower part of the bottom plate 11. This can avoid the problem of local structural weakness of the back plate 1 due to the concentration of the wire outlet holes 125 on the same side of the back plate 1, and help to reduce the length of the light wires of the light strip connectors 52.

[0166] According to some optional embodiments of the present invention, referring to Figure 43-Figure 49The light bar 51 includes a light board 511 and lamp beads 512 arranged on the light board 511. The light board 511 is made of an FPC substrate or a FR4 substrate. When the light board 511 is made of an FPC substrate, the hardness of the light board 511 is low and has good flexibility; when the light board 511 is made of an FR4 substrate, the light board 511 can have a high structural strength, and the thickness and width of the light board 511 can be adjusted to adjust the overall flexibility, hardness and rigidity of the light bar 51. For example, a FR4 substrate with a smaller thickness can be selected to make the light board 511. The thickness of the light board 511 can be 0.8-1.2mm, for example, the thickness of the light board 511 can be 1.0mm. After the thickness of the light board 511 is determined, the hardness of the light bar 51 can be reduced by reducing the width of the light board 511 to ensure that the light bar 51 bends along the curvature of the back panel 1, thereby reducing the interference of the light bar 51 on the curvature of the back panel 1. For example, when the lamp board 511 is made of a FR4 substrate, a FR4 substrate with a thickness of 1.0 mm can be selected to make the lamp board 511, and a FR4 substrate with a width of 25 mm and 41 mm can be used to make the lamp board 511. For example, when there are six light strips 51 arranged vertically, the width of the lamp boards 511 at the top and the bottom can be 41 mm, and the width of the four light boards 511 in the middle can be 25 mm.

[0167] According to some optional embodiments of the present invention, the bottom plate 11 has a contour reference 112 for positioning the light bar 51. The contour reference 112 may be a raised structure. When the contour reference 112 is a raised structure, the height of the contour reference 112 may range from 0.4 to 0.6 mm. For example, the height of the contour reference 112 may be 0.5 mm. By setting the contour reference 112, the light bar 51 can be conveniently and accurately connected and fixed to the corresponding position on the back plate 1.

[0168] According to some embodiments of the present invention, referring to Fig.36 and Fig.39 The bottom plate 11 is provided with a reinforcing rib 111, and the reinforcing rib 111 is located on the side of the bottom plate 11 away from the display panel 7. By providing the reinforcing rib 111 on the bottom plate 11, the bottom plate 11 can have a higher structural strength when the thickness is small, which can not only meet the structural strength requirements, but also make the back plate 1 have better bending performance. In addition, the curvature of the back plate 1 can be corrected by adjusting parameters such as the height of the reinforcing rib 111 and the width of the reinforcing rib 111 to ensure the accuracy and stability of the curvature of the back plate 1.

[0169] According to some optional embodiments of the present invention, referring to Fig.36 and Fig.39There are multiple reinforcing ribs 111 (for example, there may be 5 reinforcing ribs 111), and the multiple reinforcing ribs 111 are arranged at intervals in the vertical direction, and each reinforcing rib 111 extends in the horizontal direction. Thus, the structural strength of the back plate 1 can be improved, and the back plate 1 as a whole can have better bending performance.

[0170] Optionally, the height of the reinforcing rib 111 is in the range of 0.5-1.5 mm, the width of the reinforcing rib 111 is in the range of 2.0-4.0 mm, the height of the reinforcing rib 111 refers to the height of the reinforcing rib 111 protruding from the bottom plate 11, and the width of the reinforcing rib 111 refers to the width of the reinforcing rib 111 in the up-down direction. Therefore, by setting the height of the reinforcing rib 111 and the width of the reinforcing rib 111 within the above range, it is possible to ensure that the structural strength of the back plate 1 meets the requirements, and the back plate 1 as a whole has better bending performance. For example, by adjusting the mold structure according to the curvature deformation state of the back panel 1 during the molding process, the curvature of the back panel 1 can be corrected: when the back panel 1 is buckled inward, the height of the left and right ends of the reinforcing ribs 111 can be appropriately increased, and the inward buckling of the back panel 1 can be corrected by strengthening the internal stress of the external reinforcing ribs 111 of the back panel 1; when the back panel 1 is turned outward, the height of the left and right ends of the reinforcing ribs 111 can be appropriately reduced, and the outward flipping of the back panel 1 can be corrected by reducing the internal stress of the external reinforcing ribs 111 of the back panel 1; through the above adjustments, the curvature accuracy of the back panel 1 can reach 1.125% (when the curvature radius of the back panel 1 is 4200mm, the tolerance is ±0.5mm).

[0171] According to some embodiments of the present invention, the back plate 1 is an aluminum alloy or a magnesium alloy. Thus, when the thickness of the back plate 1 is relatively thin, it can have a higher structural strength, and also make the back plate 1 have better bending performance, and the weight of the back plate 1 is relatively small, so that the weight of the curved display module 100 is relatively small.

[0172] According to some embodiments of the present invention, the back plate 1 may be an integrally formed part, thereby facilitating the processing and forming of the back plate 1 and also facilitating controlling the curvature accuracy of the back plate 1 .

[0173] Optionally, the back panel 1 can be a die-casting. The back panel 1 formed by the die-casting process has higher curvature accuracy and better stability. For example, the back panel 1 can be an aluminum alloy die-casting or a magnesium alloy die-casting. Aluminum alloys or magnesium-aluminum alloys suitable for the die-casting process can be selected according to the application scenario: magnesium-aluminum alloys have low density, light weight, high hardness, and high molding mold costs, and are suitable for military displays or aviation fields; aluminum alloys are softer, have better fluidity, and relatively low mold costs, and are suitable for conventional vehicle-mounted or commercial display fields. For example, an aluminum alloy material with a thickness of 3.0 mm can be selected for die-casting to form the back panel 1.

[0174] The back plate 1 is formed by die casting. Compared with the back plate 1 formed by stamping, the die-cast back plate 1 can effectively improve the forming accuracy of the back plate 1, reduce the curvature rebound of the back plate 1, and optimize the curvature of the back plate 1. For example, the curvature accuracy of the back plate 1 formed by die casting can reach 1.125%, and the tolerance can reach ±0.5mm, while the curvature accuracy of the back plate 1 formed by stamping is 1.575%, and the tolerance is ±0.7mm. It can be seen that the curvature accuracy and stability of the back plate 1 can be significantly improved by die casting. The design value of the die-casting back plate 1 mold is the median value of the back plate 1. The die-casting process has the characteristic of uniform shrinkage, unlike the stamping process, which has constant rebound deformation stress, resulting in the stamping mold opening must be designed according to the upper limit of the curvature of the back plate 1. Moreover, the curvature of the die-cast back plate 1 can be controlled by adjusting the mold structure: as mentioned above, when the back plate 1 is buckled, the heights of the left and right ends of the back rib 111 of the back plate 1 are increased to increase the stress of the rib 111; when the back plate 1 is turned outward, the heights of the left and right ends of the back rib 111 of the back plate 1 are reduced to reduce the stress of the rib 111. After the curvature adjustment work is completed, the mold structure is finalized, and the curvature control of the back plate 1 is stable and reliable. However, the stamping process can only be achieved through post-shaping, and the shaping process has the risk of tolerance deviation and needs to be corrected regularly.

[0175] Refer to the following Figure 1-Figure 57 A curved display module 100 according to an embodiment of the present invention is described.

[0176] Reference Figure 1-Figure 57 In this embodiment, the curved display module 100 includes: a backplane 1, a display panel 7, a display panel circuit board 21, a middle frame 3, a first protective cover 22, a source chip-on-chip film 23, a second protective cover 26, a gate chip-on-chip film 24, a third protective cover 25, a backlight assembly, a light source driving circuit board 41, a signal driving circuit board 42, a fourth protective cover 43 and a fifth protective cover 44, wherein the first protective cover 22 and the second protective cover 26 are the same protective cover.

[0177] The display panel circuit board 21 and the first protection cover 22 are both arranged on the ground side of the back plate 1 . The middle frame 3 is arranged on a side of the back plate 1 adjacent to the display panel 7 . The display panel 7 is connected to the middle frame 3 . Among them, the back plate 1 includes: a bottom plate 11 and a side plate 12, the side plate 12 includes the above-mentioned support portion 120 and a circuit board fixing portion 13, the support portion 120 is formed on the outer periphery of the bottom plate 11 and the support portion 120 surrounds the bottom plate 11, the support portion 120 is located on the side of the bottom plate 11 adjacent to the display panel 7, the bottom plate 11 and the support portion 120 can be arranged approximately vertically, the backlight assembly is arranged in the accommodating space 10 jointly defined by the bottom plate 11 and the support portion 120, the display panel 7 is arranged on the side of the side plate 12 away from the bottom plate 11, the display panel 7 is located on the side of the backlight assembly away from the bottom plate 11, the backlight assembly can provide a light source for the display panel 7, the circuit board fixing portion 13 is connected to the ground side of the support portion 120, at least a portion of the circuit board fixing portion 13 is spaced apart from the support portion 120, and the circuit board fixing portion 13 can be arranged approximately parallel to at least a portion of the support portion 120.

[0178] The support portion 120 includes a first sub-support portion 121, a second sub-support portion 122 and a middle frame fixing portion 123. One end of the first sub-support portion 121 is connected to the base plate 11, and the other end of the first sub-support portion 121 extends toward the direction adjacent to the display panel 7. The first sub-support portion 121 can be vertically arranged with respect to the base plate 11. The circuit board fixing portion 13 is located on the outer side of the first sub-support portion 121. The circuit board fixing portion 13 is opposite to and spaced apart from the first sub-support portion 121. The circuit board fixing portion 13 and the first sub-support portion 121 can be arranged in parallel. One end of the second sub-support portion 122 is connected to the other end of the first sub-support portion 121, and the other end of the second sub-support portion 122 extends outward and is connected to the circuit board fixing portion 13. The second sub-support portion 122, the first sub-support portion 121 and the circuit board fixing portion 13 can be arranged vertically, and the second sub-support portion 122 can be arranged substantially parallel to the bottom plate 11. The second sub-support portion 122 can play a role in connecting the first sub-support portion 121 and the circuit board fixing portion 13, so that the ground side of the back plate 1 forms a double-wall structure. The middle frame fixing portion 123 is arranged on a side of the second sub-support portion 122 adjacent to the display panel 7, and the middle frame fixing portion 123 is connected to a side of the second sub-support portion 122 away from the first sub-support portion 121, and the middle frame fixing portion 123 extends in the direction adjacent to the display panel 7.

[0179] The back panel 1 is integrally formed by a die-casting process, and the back panel 1 is an aluminum alloy die-casting or a magnesium alloy die-casting. The die-casting process of the back panel 1 determines that it can be continuously closed and bent at 90° on four sides to form the side panel 12 and other complex structures. However, the stamping bending process cannot meet this requirement. When the stamping bending process forms a four-sided continuous structure, the bending surface must have a sufficiently gentle slope angle to avoid the stamping tearing problem, and a 90° closed structure cannot be produced.

[0180] The middle frame 3 is connected and fixed to the middle frame fixing portion 123. The middle frame 3 can be fixed to the back plate 1 by means of a buckle + fastener. For example, a first buckle 35 is formed on the middle frame 3, and a second buckle 1231 that is snap-fitted with the first buckle 35 is formed on the middle frame fixing portion 123. When the middle frame 3 is installed and fixed on the back plate 1, the middle frame 3 can be preliminarily installed on the back plate 1 by means of the cooperation of the first buckle 35 and the second buckle 1231, and then the middle frame 3 can be reliably fixed to the back plate 1 by means of a first fastener 91 (such as a screw).

[0181] The display panel circuit board 21 and the first protective cover 22 are both arranged on the outside of the circuit board fixing portion 13, the source chip-on-cover film 23 is arranged on the ground side of the middle frame 3, and the first protective cover 22 is arranged on the display panel circuit board 21 and the source chip-on-cover film 23. The first protective cover 22 is connected to the middle frame 3 and the circuit board fixing portion 13 of the back plate 1, and the first protective cover 22 is connected to the middle frame 3 by a buckle + fastener connection. For example, a third buckle 36 may be formed on the middle frame 3, and a first buckle hole 2221 that cooperates with the third buckle 36 may be formed on the first protective cover 22. When the display panel circuit board 21, the source chip-on-chip film 23 and the first protective cover 22 are connected and fixed on the circuit board fixing part 13 of the back plate 1 and the middle frame 3, the first protective cover 22 can be initially installed on the middle frame 3 through the cooperation of the third buckle 36 and the first card hole 2221, and the first protective cover 22 is connected to the middle frame 3 through the second fastener 92, and the first protective cover 22 is connected to the display panel circuit board 21 and the back plate 1 through the third fastener 93, so that the display panel circuit board 21, the source chip-on-chip film 23 and the first protective cover 22 can be connected and fixed on the back plate 1 and the middle frame 3.

[0182] Among them, the first protective cover 22 includes the above-mentioned protective part 221, the first bent edge 222 and the second bent edge 223. The protective part 221 is located on the ground side of the side panel 12 and the ground side of the middle frame 3. The first protective cover 22 can be connected to both the back panel 1 and the middle frame 3. The first bent edge 222 is located on the front side of the protective part 221 and the first bent edge 222 abuts against the front side of the middle frame 3. The second bent edge 223 is located on the rear side of the protective part 221 and the second bent edge 223 abuts against the rear side of the circuit board fixing part 13.

[0183] The gate chip-on-chip film 24 and the third protective cover 25 are both provided on the left and right sides of the middle frame 3. The third protective cover 25 may be U-shaped. The gate chip-on-chip film 24 and the third protective cover 25 are both provided on the left and right sides of the middle frame 3. The third protective cover 25 is provided on the corresponding gate chip-on-chip film 24. Each third protective cover 25 may be connected to the middle frame 3 through a buckle structure. For example, a fourth buckle 37 may be formed on the middle frame 3, and a second buckle hole 251 cooperating with the fourth buckle 37 may be formed on the third protective cover 25. Optionally, each third protective cover 25 may be connected to the middle frame 3 through a plurality of fourth buckles 37 (e.g., four fourth buckles 37). The plurality of fourth buckles 37 may be divided into a plurality of groups, each group including two fourth buckles 37 arranged in opposite directions, to ensure that the third protective cover 25 is firmly mounted on the middle frame 3.

[0184] The backlight assembly includes: a light source component 5, a reflector 61, a first optical film material 62 and a second optical film material 63, wherein the reflector 61 includes a first reflective portion 611 and a second reflective portion 612, wherein the light source component 5 is arranged on the bottom plate 11, the first reflective portion 611 is arranged on the light source component 5 and is located on a side of the light source component 5 away from the bottom plate 11, the second reflective portion 612 is arranged on the first sub-support portion 121, the first optical film material 62 is arranged on the second sub-support portion 122, and the second optical film material 63 is arranged on a side of the first optical film material 62 adjacent to the display panel 7. A positioning convex column 124 is formed on the side of the second sub-support portion 122 adjacent to the display panel 7, and a positioning hole 631 is formed on the second optical film material 63 to cooperate with the positioning convex column 124. Through the cooperation between the positioning hole 631 on the second optical film material 63 and the positioning convex column 124 on the back plate 1, the second optical film material 63 can be conveniently installed on the back plate 1.

[0185] The light source component 5 is connected to the light source driving circuit board 41. For example, the light bar connector 52 of the light source component 5 can be connected to the light source driving circuit board 41 through a light line. The light source driving circuit board 41 drives and controls the light source component 5 to work. The signal driving circuit board 42 is electrically connected to the display panel 7. The signal driving circuit board 42 is used to drive the display panel 7. The light source driving circuit board 41 and the signal driving circuit board 42 are both arranged on the rear side of the back plate 1. The light source driving circuit board 41 and the signal driving circuit board 42 are both arranged in a roughly flat plate shape, so as not to interfere with and affect the curvature of the back plate 1. The fourth protective cover 43 is arranged on the light source driving circuit board 41 to protect the light source driving circuit board 41, and the fifth protective cover 44 is arranged on the signal driving circuit board 42 to protect the signal driving circuit board 42. The fourth protective cover 43 and the fifth protective cover 44 are also arranged in a roughly flat plate shape, so as not to interfere with and affect the curvature of the back plate 1.

[0186] The curved display module 100 in this embodiment can significantly reduce the impact on the curvature of the module by setting the display panel circuit board 21, the first protective cover 22, and the source chip-on-chip film 23 on the ground side of the back plate 1. By setting the ground side of the back plate 1 as a double-wall structure, the inner wall (the part of the support part 120 located on the ground side of the back plate 1) is used to install and fix the partial structure of the backlight assembly, and the outer wall (the circuit board fixing part 13) is used to install and fix the display panel circuit board 21; by connecting the display panel 7 with the middle frame 3, the front frame in the related art is cancelled, and a frameless design is realized. By setting the back plate 1 to have a flange structure, the lower middle frame in the related art can be omitted, and a single middle frame design can be realized, thereby avoiding the interference and influence of the front frame and the lower middle frame in the related art on the curvature of the module. Through the above-mentioned structural design, the curvature accuracy and stability of the curved display module 100 can be significantly improved.

[0187] A display device according to an embodiment of a second aspect of the present invention includes: a display module according to an embodiment of the first aspect of the present invention.

[0188] The display device according to the embodiment of the present invention can meet the requirement of high-precision curvature and ensure the yield of the subsequent process by providing the above-mentioned curved display module 100 .

[0189] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0190] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A curved display module, characterized in that: include: A back plate, the back plate comprising a bottom plate and side plates, the side plates being formed on the outer periphery of the bottom plate, the bottom plate and the side plates jointly defining a receiving space suitable for receiving a backlight assembly, wherein the back plate is an integrally formed part; A display panel, the display panel being arranged on a side of the backlight assembly away from the bottom plate; A display panel circuit board, wherein the display panel circuit board is electrically connected to the display panel via a flexible circuit board, and the display panel circuit board is arranged on the outer side of the side plate; A first fixing hole is formed on the side plate, a second fixing hole corresponding to the first fixing hole is formed on the display panel circuit board, and a fastener is passed through the first fixing hole and the second fixing hole to connect the display panel circuit board to the back plate; A positioning boss for positioning the display panel circuit board is formed on the side plate. The positioning boss is arranged around the outer peripheral edge of the first fixing hole, and the positioning boss cooperates with the second fixing hole.

2. The curved display module according to claim 1, characterized in that: The display panel circuit board is fixedly connected to the side plate, the side plate fixedly connected to the display panel circuit board is arc-shaped, and the bottom plate is arc-shaped.

3. The curved display module according to claim 1, characterized in that: The side panel comprises: A support portion, wherein the support portion is formed at an outer peripheral edge of the bottom plate, and the support portion and the bottom plate together define the accommodation space; A circuit board fixing portion, wherein the circuit board fixing portion is connected to the outer side of the supporting portion, at least a portion of the circuit board fixing portion is spaced apart from the supporting portion, and the display panel circuit board is arranged on the outer side of the circuit board fixing portion and is fixedly connected to the circuit board fixing portion.

4. The curved display module according to claim 3, characterized in that: The support portion comprises: a first sub-support portion, one end of which is connected to the bottom plate, the other end of which extends toward a direction adjacent to the display panel, the circuit board fixing portion being located outside the first sub-support portion, and the circuit board fixing portion being opposite to and spaced from the first sub-support portion; A second sub-support portion, one end of the second sub-support portion is connected to the other end of the first sub-support portion, and the other end of the second sub-support portion extends outward and is connected to the circuit board fixing portion.

5. The curved display module according to claim 4, characterized in that: Also includes: The backlight assembly comprises a second optical film material, a positioning boss is formed on one side of the second sub-support portion adjacent to the display panel, and a positioning hole matched with the positioning boss is formed on the second optical film material.

6. The curved display module according to any one of claims 1 to 5, characterized in that: include: A first protective cover, at least a portion of which is disposed on the outer side of the side plate and covers the display panel circuit board.

7. The curved display module according to claim 6, characterized in that: include: A middle frame, at least a portion of the middle frame is arranged on a side of the back panel adjacent to the display panel, the display panel is supported on the middle frame, the first protective cover includes a protective portion and a first bent edge, the protective portion is located on the outer side of the side panel and / or the outer side of the middle frame, the first bent edge is located on a side of the protective portion adjacent to the display panel, and the first bent edge abuts against the side of the middle frame adjacent to the display panel.

8. The curved display module according to claim 7, characterized in that: The first protection cover further includes a second bent edge, the second bent edge is located at a side of the protection portion away from the display panel, and the second bent edge abuts against a surface of the side plate away from the display panel.

9. The curved display module according to claim 3, characterized in that: The first fixing hole is formed on the circuit board fixing portion.

10. The curved display module according to claim 1, characterized in that: include: A first protective cover, at least a portion of which is disposed on the outer side of the side panel and covers the display panel circuit board, a third fixing hole is provided on the first protective cover, and fasteners are passed through the first fixing hole, the second fixing hole and the third fixing hole to connect the display panel circuit board and the first protective cover to the back panel.

11. The curved display module according to claim 1, characterized in that: It also includes a backlight assembly, which includes: a light source component and a reflector, the light source component is arranged on the bottom plate, the reflector includes a first reflective portion and a second reflective portion, the first reflective portion is arranged on the light source component and is located on a side of the light source component away from the bottom plate, and the second reflective portion is arranged on the side plate.

12. The curved display module according to claim 1, characterized in that: include: A chip-on-film assembly is disposed on the outer side of the side plate and is used to transmit a driving signal to the display panel.

13. The curved display module according to claim 12, characterized in that: The chip-on-film assembly includes a source chip-on-film, and the source chip-on-film and the display panel circuit board are located on the same side of the side plate.

14. The curved display module according to claim 13, characterized in that: include: The second protective cover is arranged on the outer side of the side plate and covers the source chip-on-chip film.

15. The curved display module according to claim 14, characterized in that: include: A first protective cover is arranged on the outer side of the side plate and covers the display panel circuit board, and the second protective cover is the same protective cover as the first protective cover.

16. The curved display module according to claim 14, characterized in that: A spacer layer is provided between the second protection cover and the source chip-on-chip film.

17. The curved display module according to claim 12, characterized in that: The COF assembly includes a gate COF film, and the gate COF film and the display panel circuit board are located on different sides of the side plate.

18. The curved display module according to claim 17, characterized in that: A third protective cover is included, and the third protective cover is arranged on the outer side of the side plate and covers the gate chip-on-chip film.

19. The curved display module according to any one of claims 12 to 18, characterized in that: include: The middle frame is arranged on a side of the back plate adjacent to the display panel, the display panel is supported on the middle frame, the chip-on-film assembly is arranged on the outer side of the middle frame, and the middle frame is provided with an avoidance hole for avoiding the chip-on-film assembly.

20. The curved display module according to claim 1, characterized in that: include: A middle frame is arranged on a side of the back plate adjacent to the display panel, the display panel and the middle frame are connected via a foam tape, and a positioning groove for accommodating the foam tape is formed on the middle frame.

21. The curved display module according to claim 1, characterized in that: The display panel circuit board is arranged on the ground side of the side plate.

22. The curved display module according to claim 1, characterized in that: The back plate is an aluminum alloy part or a magnesium alloy part.

23. The curved display module according to claim 1, characterized in that: The back plate is a die-casting part.

24. A display device, characterized in that: include: A curved display module according to any one of claims 1-23.

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