WO2023201595A1 - 显示模组及显示装置 - Google Patents

显示模组及显示装置 Download PDF

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Publication number
WO2023201595A1
WO2023201595A1 PCT/CN2022/088022 CN2022088022W WO2023201595A1 WO 2023201595 A1 WO2023201595 A1 WO 2023201595A1 CN 2022088022 W CN2022088022 W CN 2022088022W WO 2023201595 A1 WO2023201595 A1 WO 2023201595A1
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WO
WIPO (PCT)
Prior art keywords
film layer
optical film
display panel
circuit board
backplane
Prior art date
Application number
PCT/CN2022/088022
Other languages
English (en)
French (fr)
Inventor
李会艳
耿仕新
张宇
刘淼
梁福学
秦雪飞
王璐璐
王铮
韩天洋
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2022/088022 priority Critical patent/WO2023201595A1/zh
Priority to CN202280000810.XA priority patent/CN117529687A/zh
Publication of WO2023201595A1 publication Critical patent/WO2023201595A1/zh

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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods

Definitions

  • the present invention relates to the field of display technology, and in particular, to a display module and a display device.
  • LCD strip screens are a new display carrier that has gradually entered people's lives and work recently. As strip screens are used more and more widely, they are also developing rapidly in intelligent transportation fields such as buses and subways. In particular, the ultra-long bar screen can be used in scenarios such as advertising in stations and bus guidance displays. It is also compatible with horizontal and vertical screens, bringing more direct visual convenience to the general public.
  • the present invention aims to solve at least one of the technical problems existing in the prior art, and proposes a display module and a display device, which can realize an ultra-long display screen (especially a strip screen, the length of which is, for example, 600 mm). Above) is compatible with both horizontal and vertical screens, ensuring that the optical film layer will not be misaligned while meeting the requirements for narrow borders.
  • an embodiment of the present disclosure provides a display module, including a display panel and a backlight assembly located on a side away from the light exit surface of the display panel, wherein the backlight assembly includes a light source assembly and an optical film layer, so The light emitted by the light source component enters the display panel through the optical film layer;
  • At least one long side and at least one short side of the optical film layer are provided with a through groove penetrating the optical film layer in a direction perpendicular to the plane of the light-emitting surface of the display panel;
  • the display module further includes a middle frame, which includes a middle frame body arranged around the backlight assembly and a first extension portion located between the display panel and the optical film layer; the middle frame further It includes a second protrusion provided on the surface opposite to the through groove, and the second protrusion is correspondingly provided in the through groove.
  • the middle one of the through grooves is offset from the
  • the optical film layer is arranged parallel to the symmetry plane of its short side and perpendicular to the plane of the light-emitting surface of the display panel; the rest of the through grooves are parallel to the short side of the optical film layer and perpendicular to the The symmetry plane of the plane where the light-emitting surface of the display panel is located is symmetrically distributed;
  • a first convex portion is provided on at least one long side and at least one short side of the optical film layer, and the first convex portion faces in a direction parallel to the plane where the light incident surface of the optical film layer is located.
  • the optical film layer extends beyond the edge; the through groove is provided at a position away from the farthest end of the first protrusion extending toward the edge of the optical film layer.
  • first spacing between two adjacent first protrusions on the long side of the optical film layer, and the first protrusion closest to the short side of the optical film layer is separated from the first protrusion.
  • second spacing between the short sides of the optical film layer;
  • the first spacing is greater than or equal to 160mm and less than or equal to 300mm; the second spacing is greater than or equal to 50mm and less than or equal to 150mm.
  • the third spacing is greater than or equal to 50mm and less than or equal to 150mm; the fourth spacing is greater than or equal to 30mm and less than or equal to 70mm.
  • the light source assembly further includes a light guide plate and a reflective sheet located on a side of the optical film layer away from the display panel and sequentially arranged in a direction away from the optical film layer; the light source assembly further includes a The side-entering backlight source is arranged opposite to the light guide plate;
  • the light guide plate is provided with a third convex part corresponding to the position of the first convex part on the long side and/or short side of the optical film layer, and the third convex part is parallel to the plane where the light exit surface is located.
  • the orthographic projection on the projection partially overlaps with the orthographic projection of the first convex portion on a plane parallel to the light-emitting surface.
  • the area of the orthographic projection of the third protrusion on the plane of the light-emitting surface of the display panel covering the through-slot on the plane of the light-emitting surface of the display panel is greater than or equal to the through-slot.
  • a first reserved expansion distance is provided between the third protrusion and the component opposite it; in the extension direction of the light guide plate, the A second reserved expansion distance is provided between the remaining portion of the side except the third protrusion and the components opposite it.
  • the display module further includes a backplane, which includes a backplane body located on a side of the backlight assembly facing away from the display panel, and backplane sides surrounding the backlight assembly;
  • the middle frame also includes side edges of the middle frame and anti-reflection retaining walls.
  • the side edges of the middle frame and the anti-reflection retaining walls are located on the backplane body close to the display panel in a direction perpendicular to the light-emitting surface of the display panel.
  • the distance between the anti-reflection blocking wall and the rest of the side of the light guide plate except for the third protrusion includes the second reserved expansion distance
  • An escape channel is provided on the surface of the anti-reflection blocking wall opposite to the light guide plate at a position corresponding to the third protrusion, and the side of the back plate is in contact with the third protrusion at the escape channel.
  • the spacing between the parts includes the first reserved expansion spacing.
  • the light source assembly further includes a light guide plate and a reflective sheet located on a side of the optical film layer away from the display panel and sequentially arranged in a direction away from the optical film layer; the light source assembly further includes a The side-entering backlight source is arranged opposite to the light guide plate;
  • the through groove is only provided on one long side and one short side of the optical film layer
  • the other long side of the optical film layer corresponding to the edge-type backlight is not provided with the through groove;
  • the display area of the display panel has a rectangular outline.
  • the display module further includes a backplane, which includes a backplane body located on a side of the backlight assembly facing away from the display panel, and backplane sides surrounding the backlight assembly, so
  • the light source assembly also includes a light guide plate and a reflective sheet located on the side of the optical film layer away from the display panel and sequentially arranged in a direction away from the optical film layer; the light source assembly also includes a light guide plate opposite to the light guide plate.
  • At least one support pillar is provided on the surface of the side of the backplane opposite the side-type backlight source and opposite to the light guide plate; the support pillar extends toward the light guide plate, and the light guide plate includes a corresponding
  • the support column is provided with a groove, and the support column extends into the groove;
  • the surface of the light guide plate on one side of the support column includes a fourth convex portion extending parallel to the plane of the light guide plate, and the groove is provided on the fourth convex portion.
  • there are two support pillars and they are symmetrically distributed with respect to a symmetry plane perpendicular to the plane of the light-emitting surface of the display panel on the side of the backplane where the support pillars are provided.
  • the support pillar and the optical film layer partially overlap in a direction parallel to the plane of the light exit surface of the display panel; the support pillar and the optical film layer overlap in a direction perpendicular to the display panel.
  • the light-emitting surfaces are spaced apart from each other in the direction of the plane.
  • At least one elastic support member is provided on the surface of the side of the backplane opposite to the side-type backlight and opposite to the light guide plate for supporting the light guide plate;
  • the side-type backlight includes a first printed circuit board and an LED light bar disposed on the first printed circuit board; at least one on the surface of the first printed circuit board opposite to the light guide plate A pressure-bearing member is used to support the light guide plate.
  • the at least one elastic support member includes two first elastic support members and one second elastic support member, wherein the two first elastic support members are in a compressed state, and the second elastic support member and There is a gap between the light guide plates;
  • the two second elastic support members are respectively located at two edge positions close to the long side of the light guide plate; the first elastic support member is located between the two first elastic support members.
  • the surface of the first elastic support member opposite to the light guide plate includes a protective layer, and the protective layer is used to reduce the friction coefficient of the main material of the first elastic support member.
  • the display module further includes a backplane, the backplane includes a backplane body located on the side of the backlight assembly facing away from the display panel, and the display module further includes at least one second printed circuit. board, the second printed circuit board is electrically connected to the display panel through a cable, and is used to transmit display signals to the display panel, wherein,
  • At least one elastic mounting member is provided between the second printed circuit board and the surface of the backplane body on the side facing away from the backlight assembly for limiting the second printed circuit board to the backlight assembly.
  • the elastic mounting component includes a main body part of the elastic mounting component located between the backplane body and the second printed circuit board, and two limiting bending parts connected to the main body part of the elastic mounting component, so The main parts of the two limiting bending parts extend in a direction away from the main body of the back plate; one end of the two limiting bending parts away from the main body of the elastic mounting member is respectively provided with mutually opposite limiting bending parts. , the main part of the elastic mounting member, the two limiting bending parts and the two limiting bending parts are arranged to semi-enclose the second printed circuit board to limit the second printed circuit board. Bit.
  • each of the limiting bending portions has a first gap between it and the second printed circuit board in a direction perpendicular to the extension direction of the second printed circuit board; each of the limiting bending portions has a first gap with the second printed circuit board; There is a second gap between the bent portion and the second printed circuit board in a direction perpendicular to the plane of the light-emitting surface;
  • the side of the second printed circuit board close to the backplane body includes at least one grounding area, and a conductive flexible component is provided between the grounding area and the surface of the backplane body on the side facing away from the backlight assembly, For electrically connecting the grounding area and the main body of the backplane;
  • the conductive flexible component is adhesively connected to the grounding area and the backplane main body respectively.
  • the number of the second printed circuit boards is multiple, wherein at least a pair of the second printed circuit boards are electrically connected through a flexible circuit board, and the flexible circuit board is movably fixed on The side of the backplane body facing away from the backlight assembly.
  • a fixing tape is provided on the surface of the backplane body facing away from the backlight assembly and at a position corresponding to the flexible circuit board.
  • the fixing tape includes a non-glued part and a first glued part. and two second have glue parts, which,
  • At least a part of the flexible circuit board is located between the backplane body and the glue-free part;
  • the first glued part and the two second glued parts are respectively located on three sides of the glueless part and are integrated with the glueless part; the two second glued parts are respectively located on the Both sides of the glueless part;
  • a first avoidance gap is included between the first glued part and the flexible circuit board, and a second avoidance gap is included between the second glued part and the flexible circuit board.
  • the surface profile of the backplane body parallel to the light-emitting surface of the display panel is a rectangle;
  • the second printed circuit board is strip-shaped and extends along the long side of the rectangle;
  • a surface of the backplane main body facing away from the backlight assembly, and a reinforcing rib recessed toward the direction closer to the display panel is provided on the long side of the second printed circuit board away from the backplane main body.
  • the reinforcing ribs extend in a direction parallel to the long side of the back plate main body; a part of the orthographic projection of the flexible circuit board on the back plate main body is located in the recessed portion of the reinforcing ribs;
  • At least a part of the flexible circuit board is located between the backplane body and the glue-free part;
  • the first glued portion is located on the long side of the recessed portion of the reinforcing rib away from the back panel body; the two second glued portions are located on the recessed portion of the reinforcing rib close to the back panel.
  • the diagonal size of the display area of the display panel is greater than or equal to 47.1 inches; the aspect ratio of the display area of the display panel is greater than or equal to 3.2.
  • an embodiment of the present disclosure further provides a display device, including the above-mentioned display module provided by an embodiment of the present disclosure, where the display module is a bar-shaped display module.
  • Figure 1 is an exploded structural view of a display module provided by an embodiment of the present disclosure
  • Figure 2 is a front view of the display module provided by the embodiment of the present disclosure when placed horizontally;
  • Figure 3 is a cross-sectional view along line A1 in Figure 2;
  • Figure 4 is a partial structural view of the optical film layer used in the embodiment of the present disclosure.
  • Figure 5 is a schematic diagram of the distribution of a plurality of first protrusions on the long sides and short sides of the optical film layer used in the embodiment of the present disclosure
  • Figure 6A is a schematic diagram of the positional relationship between the optical film layer, the light guide plate and the back plate at one of the first convex parts used in the embodiment of the present disclosure
  • Figure 6B is a structural diagram of the through groove on the short side of the optical film layer used in the embodiment of the present disclosure.
  • Figure 7 is a cross-sectional view along line A2 in Figure 2;
  • Figure 8 is a structural diagram of a support column used in an embodiment of the present disclosure.
  • Figure 9 is a schematic diagram of the positional relationship between the support pillar and the light guide plate used in the embodiment of the present disclosure.
  • Figure 10 is a cross-sectional view along line A3 in Figure 2;
  • Figure 11 is a front view of the display module provided by the embodiment of the present disclosure when placed horizontally;
  • Figure 12 is a partial enlarged view of the B1 area in Figure 11;
  • Figure 13 is a partial enlarged view of the B2 area in Figure 11;
  • Figure 14 is a partial enlarged view of the B3 area in Figure 11;
  • Figure 15 is a partial enlarged view of the B4 area in Figure 11;
  • Figure 16 is a schematic connection diagram of the display panel, the second printed circuit board and the flexible circuit board used in the embodiment of the present disclosure
  • Figure 17 is a structural diagram of the backplane used in the embodiment of the present disclosure on the side facing away from the backlight assembly;
  • Figure 18 is a schematic diagram of the connection between the second printed circuit board and the backplane used in the embodiment of the present disclosure
  • Figure 19 is a partial cross-sectional view of the display module provided by the embodiment of the present disclosure at the elastic mounting part;
  • Figure 20 is a cross-sectional view of an elastic mounting member used in an embodiment of the present disclosure.
  • Figure 21 is a structural diagram of the fixing tape used in the embodiment of the present disclosure.
  • Figure 22 is another structural diagram of the fixing tape used in the embodiment of the present disclosure.
  • a display module provided by an embodiment of the present disclosure includes a frame 1, a display panel 2, a middle frame 3, a backlight assembly, a backplane 9 and a circuit board assembly 10 (including a constant current plate and its protective cover, timing controller and its protective cover).
  • the backlight assembly is disposed on the side of the light exit surface away from the display panel 2.
  • the backlight assembly includes a light source assembly and an optical film layer (including at least one functional film material) 4.
  • the light emitted by the light source assembly enters the display panel through the optical film layer. 2;
  • the backlight assembly can be an edge-type backlight assembly or a direct-type backlight assembly.
  • the light source assembly also includes a light guide plate 5 and a reflective sheet 7 located on the side of the optical film layer 4 away from the display panel 2 and sequentially arranged in a direction away from the optical film layer 4; in addition, the light source assembly may also include an edge-type backlight 8 disposed opposite to the light guide plate 5 .
  • the relative arrangement here refers to the relative arrangement of the side-type backlight 8 and the light incident surface of the light guide plate 5 perpendicular to the plane where the light exit surface of the display panel 2 is located.
  • the optical film layer 4 can, for example, achieve a uniform light effect.
  • the optical film layer 4 includes, for example, a multi-layer optical film material such as a lower diffusion film and a prism film.
  • the lower diffusion film is used to diffuse light; the prism film is used to increase the brightness of light.
  • a diffusion film or other functional membrane materials can be added.
  • At least one long side and at least one short side of the optical film layer 4 are provided with a through groove 411 penetrating the optical film layer in a direction perpendicular to the plane of the light-emitting surface of the display panel.
  • the through slot 411 can cooperate with other structures of the display module (for example, the middle frame) to limit the position of the optical film layer 4 in two directions, so that the display module can be compatible with both horizontal and vertical screens. to ensure that the optical film layer 4 will not be dislocated.
  • the first protrusion 41 is provided on at least one long side and at least one short side of the optical film layer 4; optionally, the first protrusion 41 is along a direction parallel to the plane where the light incident surface of the optical film layer 4 is located. Extending toward the outside of the edge of the optical film layer 4 .
  • the through groove 411 is provided at a position away from the farthest end of the first protrusion 41 extending away from the edge of the optical film layer 4 . In practical applications, the through groove 411 may be partially or entirely located inside the first protrusion 41 , or may be designed adjacent to the first protrusion 41 .
  • the first protrusion 41 is provided with a through groove 411 penetrating the first protrusion 41 in a direction perpendicular to the plane of the light emitting surface of the display panel 2 .
  • the stable force of the optical film layer 4 is ensured when the display module is placed horizontally or vertically, and the size of the optical film layer 4 in its edge area can be reduced. This is beneficial to reducing the frame size of the display module.
  • only the through groove 411 may be provided on at least one long side or at least one short side without the first protrusion 41 , and the through groove 411 may be provided directly on the edge of the optical film layer 4 .
  • the display module further includes a middle frame 3.
  • the middle frame 3 includes a middle frame body 31 arranged around the backlight assembly; the middle frame 3 also includes a second convex portion provided on the surface opposite to the through groove 411. 33.
  • the second protrusion 33 is correspondingly arranged in the through groove.
  • the surface opposite to the through groove 411 may be a surface of a part of the middle frame body 31 , for example, it may be a surface of the middle frame body 31 extending toward the through groove 411 along a portion parallel to the plane where the light emitting surface of the display panel 2 is located. .
  • the display module also includes a first extension 37 located between the display panel 2 and the optical film layer 4 .
  • the first extension 37 is used to carry the display panel 2 and is connected to the middle frame body 31 .
  • the first extension part 37 and the middle frame main body 31 may be a one-time molded structure.
  • the second protrusion 33 is located on the side of the first extension 37 opposite to the through groove 411 , that is, the surface opposite to the through groove 411 may be the surface of the first extension 37 facing the through groove 411 surface.
  • the second protrusion 33 , the first extension 37 and the middle frame body 31 may be a one-piece molded structure.
  • the "hanging ear”-like structure formed by the cooperation of the through groove 411 and the second protrusion 33 when the display module is used in a horizontal screen, the "hanging ear” structure corresponding to one long side of the optical film layer 4 can be used (this is located on the sky side of the display module, that is, the DP side in Figure 2) to achieve the position limit of the optical film layer 4; similarly, when the display module is used in a vertical screen, one short side of the optical film layer 4 can be used to correspond to The "hanging ear" structure (located on the sky side of the display module at this time) realizes the position limitation of the optical film layer 4, thereby ensuring that the optical film layer 4 is not Misalignment will occur, especially for ultra-long displays (especially bar screens, with a length of more than 600mm, for example).
  • the display module can be used in high-mechanical performance scenarios such as buses, subways, sliding doors, etc.
  • the optical film layer 4 will not fall off from the second convex portion 33 due to factors such as vibration and gravity.
  • the second protrusion 33 extends into the through groove 411, there is no need to provide an additional matching structure on the side of the optical film layer 4, and there is no need to reserve a thermal expansion space for the matching structure, thus greatly saving the cost of the optical film layer 4.
  • the space on the side can further realize the narrow bezel design of an ultra-long display screen (especially a strip screen, the length of which is more than 600 mm, such as 2 m).
  • an existing ultra-long display module has a long side dimension of 2187.8mm and a short side dimension of 12.9mm.
  • the long side dimension of the display module provided by this application is 2171.08mm, which is similar to the above-mentioned existing display module.
  • the short side size is only 11.3mm, and the short side size is 14.2% optimized compared to the existing technology, thus meeting the need for narrow bezels.
  • the outline of the light-emitting surface of the display panel is a rectangle, or approximately a rectangle;
  • the orthographic projection of the outer outline of the display module on the plane where the light-emitting surface of the display panel is located can be a rectangle, or approximately a rectangle;
  • the outer outline of the middle frame, the light guide plate The outer contour of the optical film layer and the orthographic projection of the outer contour of the optical film layer on the plane where the light-emitting surface of the display panel is located may both be rectangular, or both may be approximately rectangular.
  • the rectangle may also include a rounded rectangle, that is, at least one of the four corners of the rectangle is rounded.
  • the through groove 411 is only provided on one long side and one short side of the optical film layer 4, and the optical film layer 4 is connected to the side.
  • the through-slot 411 is not provided on the other long side corresponding to the edge-type backlight 8 , that is, the through-slot 411 is only provided on the long side of the optical film layer 4 opposite to the side-type backlight 8 .
  • the display panel 2 For example, the outline of the display area is a rectangle.
  • the edge-type backlight 8 can be located on the ground side of the display module (ie, the DPO side in Figure 2), and the through-slot 411 is located on the display module.
  • the sky side of the module ie, the DP side in Figure 2.
  • the ground side (DPO side) refers to the side facing the placement surface when the display module is placed on the placement surface;
  • the sky side refers to the side facing away from the placement surface when the display module is placed on the placement surface.
  • the through slot 411 on the short side can be located on the sky side of the display module (ie, the DP side in FIG. 2 ).
  • the optical film layer 4 By arranging the through groove 411 on the sky side of the display module, the optical film layer 4 can be "suspended" on the corresponding second protrusion 33 through the through groove 411 under the action of its own gravity, so that the optical film layer 4 can be limited. .
  • the side-type backlight 8 By locating the side-type backlight 8 on the ground side of the display module, this is because if the side-type backlight 8 is positioned on the sky side of the display module, the light guide plate 5 may move away from the side-type backlight under its gravity. The direction of the source 8 is shifted, thereby bringing adverse effects to the display effect.
  • the embodiments of the present disclosure are not limited to this. In practical applications, the optical film layer 4 may also be located where the edge-type backlight source 8 is located.
  • a first protrusion 41 is provided on the long side.
  • first convex portions 41 a on the long side of the optical film layer 4 there are multiple first convex portions 41 a on the long side of the optical film layer 4 , and among all the first convex portions 41 a on the long side of the optical film layer 4 , the middlemost first convex portion 41a' is deviated from the symmetry plane of the optical film layer 4 parallel to the short side of the optical film layer 4 and perpendicular to the plane of the light-emitting surface of the display panel 2 (that is, deviated from the central axis O2 in Figure 5) set; the remaining first convex portions 41a are symmetrically distributed relative to the symmetry plane of the optical film layer 4 parallel to the short side of the optical film layer 4 and perpendicular to the plane where the light-emitting surface of the display panel 2 is located (ie, deviated from the central axis O2 in Figure 5) .
  • first protrusions 41b on the short side of the optical film layer 4, and they are parallel to the symmetry plane of the long side of the optical film layer 4 and perpendicular to the plane of the light emitting surface of the display panel 2 (ie, In Figure 5, there is a symmetrical distribution deviated from the central axis O1).
  • assembly foolproofing can be achieved, that is, assembly errors can be avoided.
  • first spacing between two adjacent first protrusions 41 a on the long side of the optical film layer 4 there is a first spacing between two adjacent first protrusions 41 a on the long side of the optical film layer 4 , and the first protrusion 41 a closest to the short side of the optical film layer 4 is There is a second spacing between a convex portion 41a and the short side of the optical film layer 4; the first spacing is greater than or equal to 160 mm and less than or equal to 300 mm; the second spacing is greater than or equal to 50 mm and less than or equal to 150 mm.
  • the first spacing and the second spacing within the above range, it can be ensured that when the optical film layer 4 thermally expands in the longitudinal direction, the optical film layer 4 is between two adjacent first convex portions 41a and There will be no accumulation between the first convex portion 41a closest to the short side of the optical film layer 4 and the short side, causing abnormal screen wrinkles. At the same time, it can also avoid the dense distribution of the first convex portions 41a causing spots on the middle frame 3 Too many avoidance structures are provided to avoid the first convex portion 41a, which leads to the problem that the overall strength of the middle frame 3 is reduced.
  • the light guide plate 5 is provided with a third convex part at a position corresponding to the first convex part 41 on the long side and/or short side of the optical film layer 4 51 (the outline of the third protrusion 51 is shown as a dotted line in FIG. 6A).
  • the orthographic projection of the third protrusion 51 on a plane parallel to the light exit surface of the display panel 2 is parallel to the first protrusion 41 on a plane parallel to the light exit surface of the display panel 2.
  • the orthographic projections on the plane where the light-emitting surface of the display panel 2 is located partially overlap.
  • the first protrusion 41 can be used to limit the position of the first protrusion 41 , so that in the display module, especially the ultra-long display screen (especially the strip screen, The first protrusion 41 can be prevented from jumping out of the gap between the light guide plate 5 and the middle frame 3 during assembly, transportation, etc., and the first protrusion 41 can be improved.
  • the connection stability of the "hanging ear"-like structure formed by the through groove 411 thereon further ensures that the optical film layer 4 will not be dislocated.
  • the orthographic projection of the third protrusion 51 on the plane of the light exit surface of the display panel 2 covers the through groove 411 on the plane of the light exit surface of the display panel 2
  • the front projection area is greater than or equal to half of the front projection area of the through slot 411 on the plane where the light exit surface of the display panel 2 is located.
  • the orthographic projection of the third protrusion 51 on the plane where the light-emitting surface of the display panel 2 is located completely covers or substantially completely covers the orthographic projection of the through-slot 411 on the plane where the light-emitting surface of the display panel 2 is located.
  • the third protrusion 51 is only provided at the position of the light guide plate 5 corresponding to the first protrusion 41 on the long side of the optical film layer 4; and as shown in FIG. 6B, since the short side size of the optical film layer 4 is smaller than Long side size, the first protrusion 41 on the short side of the optical film layer 4 can be bonded and fixed with the side edge 92 of the back plate through the adhesive material 412, which can also prevent the first protrusion 41 from being separated from the light guide plate 5 and the middle.
  • the orthographic projection of the through groove 411 on the short side of the optical film layer 4 on the plane where the light exit surface of the display panel 2 is located is consistent with the light exit of the light guide plate 5 on the display panel 2
  • the orthographic projection on the plane where the surface is located has no overlap, thus more expansion space can be reserved for the light guide plate 5 .
  • the third protrusion 51 may not be provided at the position corresponding to the first protrusion 41 on the short side of the optical film layer 4 of the light guide plate 5 .
  • the through groove 411 on the short side of the optical film layer 4 is perpendicular to the width of the short side of the optical film layer 4 .
  • the width of the through groove 411 perpendicular to the long side of the optical film layer 4 is larger than the width of the groove 411 perpendicular to the long side of the optical film layer 4 to prevent the optical film layer 4 from being extruded and deformed, thereby affecting the display effect of the display module.
  • the frame 1 includes a frame body 11 located on the side of the display panel 2 away from the middle frame body 31 and extending along a plane parallel to the light-emitting surface of the display panel 2 , and surrounding the middle frame body 31 .
  • Box 3 sets the border sides to 12.
  • the middle frame 3 also includes a middle frame side 34 located on the side of the back panel side 92 facing away from the backlight assembly.
  • the light guide plate 5 will generate thermal expansion when heated to a certain temperature. If the expansion is too large, it may affect the normal use of the display module.
  • Wide temperature usage conditions that is, the display module can be used normally in a wide range of space environment temperatures.
  • the storage temperature refers to the temperature of the space environment where the display module is placed.
  • the operating temperature of the display module generally does not exceed the above storage temperature range. Therefore, the storage temperature can be used to calculate the expansion amount of the light guide plate 5. Of course, the operating temperature can also be used to calculate the expansion amount of the light guide plate 5.
  • the operating temperature is greater than or equal to -20°C and less than or equal to 60°C; or, the operating temperature is greater than or equal to -30°C and less than or equal to 80°C.
  • a first reserved expansion distance is provided between the third protrusion 51 and the components opposite it; in the extension direction of the light guide plate 5 , the sides of the light guide plate 5 except for the third protrusion There is a second reserved expansion distance between the remaining parts except the part 51 and the components opposite thereto.
  • first reserved expansion spacing and the second reserved expansion spacing are the spacing between the light guide plate 5 and the components facing it at room temperature (for example, 25°C). This spacing should be greater than or equal to the length of the light guide plate 5. Thermal expansion in the side and short side directions.
  • the above-mentioned first reserved expansion spacing and the second reserved expansion spacing can, for example, be greater than or equal to the thermal expansion amount of the light guide plate 5 in its long side direction and short side direction under the condition of the highest operating temperature of the display module, That is, even if the display module is used at the highest operating temperature of the display module (for example, 60°C or 80°C), it can still be ensured that the distance between the light guide plate 5 and the components facing it is greater than or equal to 0.
  • the display module further includes a backplane 9 , which includes a backplane main body 91 located on the side of the backlight assembly away from the display panel 2 , and a surrounding backlight assembly.
  • the backplane side 92 is provided; and the middle frame 3 also includes an anti-reflection blocking wall 35.
  • the anti-reflection blocking wall 35 and the middle frame side 34 are located close to the backplane main body 91 in a direction perpendicular to the light-emitting surface of the display panel 2.
  • the anti-reflection blocking wall 35 On the side of the display panel 2; in the direction parallel to the light-emitting surface of the display panel 2, the anti-reflection blocking wall 35 is located on the side of the back panel side 92 close to the optical film layer 4, and the back panel side 92 is located between the middle frame side 34 and Between 35 and 35mm of backstop walls.
  • the distance between the anti-reflection blocking wall 35 and the rest of the side of the light guide plate 5 except for the third protrusion 51 includes the second reserved expansion distance.
  • the distance D2 between the anti-reflection blocking wall 35 and the rest of the side of the light guide plate 5 except for the third protrusion 51 is the above-mentioned second reserved expansion distance.
  • the back panel side 92 can be limited together with the middle frame side 34 , thereby improving the connection stability of the back panel side 92 and the middle frame 3 and preventing the middle frame 3 from lifting.
  • the surface of the anti-reflection blocking wall 35 opposite to the light guide plate 5 An escape passage (not shown in the figure) is provided at a position corresponding to the third protrusion 51 .
  • the distance D1 between the side edge 92 of the back plate and the third protrusion 51 at the avoidance slot includes the above-mentioned first reserved expansion distance.
  • the distance D1 between the side edge 92 of the back plate at the avoidance slot and the third protrusion 51 is the above-mentioned first reserved expansion distance.
  • the middle frame body 31 is not provided with an anti-reflection retaining wall 35 at the position corresponding to the third protrusion 51 , and is provided with an anti-reflection retaining wall 35 at the remaining positions corresponding to the third protrusion 51 .
  • the above-mentioned avoidance channel is It is formed by a gap between two adjacent anti-reflection retaining walls 35 , thereby ensuring that sufficient expansion space is reserved on both the side where the third protrusion 51 and the remaining parts of the light guide plate 51 are located.
  • the optical film layer 4 will undergo thermal expansion when heated to a certain temperature. If the expansion is too large, it may affect the normal use of the display module.
  • there is a reserved expansion distance between the first convex part 41 of the optical film layer 4 and the components opposite it; the rest of the side of the optical film layer 4 except the first convex part 41 and the components opposite it There is also a reserved expansion space between them. As shown in FIG.
  • At least one support column 922 is provided on the surface of the backplate side 92 opposite the edge-type backlight 8 and the light guide plate 5 ; the support column 922 extends toward the light guide plate 5 , and guides the light guide plate 5 .
  • the light panel 5 includes a groove 531 provided corresponding to the support column 922, and the support column 922 extends into the groove 531.
  • At least one support column 922 cooperates with the groove 531 to support the light guide plate 5 , thereby avoiding uneven light incidence caused by the large rotation of the light guide plate 5 when the display module is used in a vertical screen. , and thus can ensure the display effect on the basis of realizing an ultra-long display screen (especially a bar-shaped screen, with a length of, for example, more than 600mm) that is compatible with both horizontal and vertical screens.
  • the above-mentioned support column 922 also includes a connecting portion 923 embedded in the side edge 92 of the back plate, for achieving a fixed connection between the support column 922 and the side edge 92 of the back plate.
  • the surface of the light guide plate 5 on one side of the support column 922 includes a fourth protrusion 53 extending parallel to the plane of the light guide plate 5 , and the groove 531 is provided on the fourth protrusion 53 .
  • the groove 531 on the fourth convex portion 53 it is possible to prevent the boundary of the light guide plate 5 at the groove 531 from entering the display area and causing display defects such as bright lines and dark shadows at the edge of the screen.
  • the third convex part 51 and the fourth convex part 53 may be an integral structure.
  • At least one support pillar 922 is provided on the surface of the backplate side 92 opposite the edge-type backlight 8 and the light guide plate 5 , and the light guide plate 5 and at least one support pillar
  • the fourth protrusion 53 is provided on the surface opposite to the at least one support column 922
  • a groove 531 is provided on the surface of the fourth protrusion 53 that is opposite to the at least one support column 922 .
  • the at least one support column 922 is located in the groove 531 .
  • the two support pillars 922 are, for example, located in the central partition where the side 92 of the back panel where the support pillars 922 are provided is perpendicular to the symmetry plane of the plane where the light-emitting surface of the display panel 2 is located.
  • the central partition is divided into 3, 5 or 7 sections on the long side of the side 92 of the back panel, and the middle section is the above-mentioned central partition.
  • each support column 922 there are two support pillars 922 , and they are symmetrically distributed with respect to the symmetry plane of the backplane side 92 on which the support pillars 922 are arranged, which is perpendicular to the plane where the light-emitting surface of the display panel 2 is located, and both support pillars 922 are close to the plane. Symmetry plane settings. Specifically, the distance between each support column 922 and the central axis in the long direction parallel to the side edge 92 of the back plate is, for example, 17 mm.
  • the side edges 92 of the back plate where the support columns 922 are provided are symmetrically distributed with respect to the symmetry plane, or are approximately symmetrically distributed.
  • the light guide plate 5 can be more effectively prevented from rotating significantly.
  • the distance between the two support columns 922 should not be too small to ensure that the light guide plate 5 can be effectively prevented from rotating significantly.
  • the amplitude of rotation should not be too large to prevent the light guide plate 5 from deforming at the position of the support column 922 when it shrinks at low temperature.
  • the distance between the two support columns 922 is, for example, greater than or equal to 30 mm and less than or equal to 75 mm.
  • the support columns 922 can be used to approach the middle position of the light guide plate 5 in the vertical direction.
  • the light guide plate 5 is supported so that when the light guide plate 5 contracts from the sky side end and the ground side end toward the center at the same time, the amount of shrinkage is the same. If the display module is used in a vertical screen without the support column 922, when the light guide plate 5 shrinks under low temperature conditions, all the shrinkage in the vertical direction will be concentrated on the sky side, which requires increasing the width of the frame corresponding to the sky side.
  • the light guide plate 5 is moved from the sky side end to , the shrinkage amount when the ground and side ends shrink toward the center at the same time can avoid the excessive shrinkage of the 5th side end of the light guide plate under low temperature conditions, thereby avoiding the problem of the excessive width of the frame corresponding to the sky side end.
  • the above two support pillars 922 cooperate with the same groove 531, which can reduce the number of grooves 531, reduce the processing difficulty, and improve the processing efficiency.
  • the thickness of the support pillar 922 on a plane perpendicular to the light exit surface of the display panel 2 is greater than or equal to the light guide plate.
  • the thickness of the support pillar 922 is 5 on a plane perpendicular to the light exit surface of the display panel 2 .
  • the cross-sectional shape of the support column 922 in the direction perpendicular to the plane of the light-emitting surface of the display panel 2 and parallel to the extension direction of the back panel side 91 is rectangular or square, and the cross-sectional shape is The height in the plane direction perpendicular to the light exit surface of the display panel 2 is greater than or equal to the thickness of the light guide plate 5, for example, greater than or equal to 2 mm, to avoid damaging the light guide plate 5 due to the cross-sectional shape being too narrow in the height direction; the cross-sectional shape is parallel to The width in the plane direction of the light-emitting surface of the display panel 2 is greater than or equal to 1.5 mm to avoid insufficient support strength due to the cross-sectional shape being too small in the width direction.
  • the cross-sectional shape of the support column 922 is, for example, a square, the side length is, for example, 3 mm, and the protruding size from the side edge 92 of the back plate is, for example, 3 mm.
  • the support column 922 is in contact with the guide.
  • the distance between the axis of the light plate 5 parallel to its short side (ie, the axis O2 in Figure 5) is 7 mm.
  • the part of the fourth protrusion 53 located on the right support column 922 is integrated with the third protrusion 51 .
  • This integrated structure can both 41 plays a limiting role to prevent the first convex portion 41 from jumping out of the gap between the light guide plate 5 and the middle frame 3, and can also play a supporting role for the light guide plate 5 to achieve an ultra-long display screen. (Especially for bar-shaped screens, the length of which is, for example, more than 600mm) It is compatible with both horizontal and vertical screens to ensure the display effect.
  • the support pillar 922 and the groove 531 are perpendicular to the side 92 of the backplane on the opposite side of the edge-type backlight 8 (that is, where the support pillar 922 is located).
  • the third reserved expansion distance D3 is greater than or equal to the expansion amount of the light guide plate 5 at the groove 531 under the condition of the maximum operating temperature of the display module (for example, 60°C or 80°C).
  • the protruding size of the support pillar 922 from the side edge 92 of the back plate should not be too large to prevent the boundary of the light guide plate 5 at the groove 531 from entering the display area. This causes poor display such as bright lines and dark shadows at the edges of the screen.
  • the above-mentioned third reserved expansion distance D3 is greater than or equal to 1.8 mm; the distance between the light guide plate 5 at the groove 531 and the side edge 92 of the back plate is greater than or equal to 4.8 mm; the support column 922 and the groove 531 The distance between two opposite surfaces in a direction parallel to the side edge 92 of the back plate where the support pillar 922 is located is greater than or equal to 0.2 mm; The overlap amount (ie, overlapping portion) in the direction of the board sides 92 is greater than or equal to 1.5 mm; the distance between the fourth protrusion 53 and the backboard side 92 where the support column 922 is located is greater than or equal to 1.3 mm.
  • the support pillar 922 and the optical film layer 4 partially overlap in a direction parallel to the plane of the light exit surface of the display panel 2 , that is, the optical film layer 4 and the support pillar 922 Surfaces that are close to each other have an overlapping portion, and the length of the overlapping portion in a direction perpendicular to the side edge 92 of the backboard where the support column 922 is located is D10.
  • the support pillars 922 can support the optical film layer 4 and prevent the optical film layer 4 from being damaged under high temperature conditions. Collapse occurs due to softening, and may be scooped up by the support column 922 when expanding under high temperature conditions, resulting in poor image quality.
  • the support pillar 922 and the optical film layer 4 are spaced apart from each other in a direction perpendicular to the plane of the light exit surface of the display panel 2 , that is, the distance D4 in FIG. 10 .
  • the distance D4 By setting the distance D4, a certain assembly gap can be reserved between the support column 922 and the optical film layer 4 to ensure smooth installation of the two and prevent the interaction between the two from causing defects.
  • At least one elastic support member (such as The first elastic support member 6b) shown in FIG. 1 is used to limit the position of the light guide plate 5 .
  • an ultra-long display screen especially a bar-shaped screen, the length of which is, for example, more than 600 mm
  • the light guide plate 5 will deflect toward the side where the support column 922 is located.
  • the risk of migration will cause the gap between the light guide plate 5 and the side-type backlight 8 to become larger, resulting in a reduction in the LED light input efficiency or even light leakage, thereby affecting the display effect.
  • An elastic support member elastically supports the light guide plate 5 to ensure that when the screen is used vertically, the light guide plate 5 will not shift toward the side where the support column 922 is located, thereby maintaining the distance between the light guide plate 5 and the side-type backlight 8
  • the stability of the gap ensures the display effect.
  • the light guide plate 5 can maintain the stability of the gap between the light guide plate 5 and the edge-type backlight 8 under the action of its own gravity.
  • At least one elastic support member includes two first elastic support members 6b, wherein, as shown in Figure 12, the second elastic support member 6a is located between the first elastic support members 6b and the second elastic support member 6b. There is a gap between the two elastic support members 6a and the light guide plate 5; as shown in Figure 13, the two first elastic support members 6b are respectively located near the edges of the long sides of the light guide plate 5 and are in a compressed state.
  • an elastic force can always be applied to the long side of the light guide plate 5 close to its two ends. Applying this elastic force to the edge positions close to both ends of the light guide plate 5 can be used in a vertical screen.
  • the light guide plate 5 is prevented from rotating with the supporting column 922 close to the middle position as a fulcrum, thereby further maintaining the stability of the gap between the light guide plate 5 and the edge-type backlight 8 .
  • the at least one elastic support member includes at least one second elastic support member 6a.
  • the second elastic support member 6a plays a protective role in limiting the position of the light guide plate 5 for assembly and transportation of display modules, especially ultra-long display screens (especially strip screens, with a length of, for example, more than 600 mm). During the process, vibration may occur; at the same time, it can also prevent the light guide plate 5 from bouncing to the side where the second elastic support member 6a is provided, causing the distance between the LED light bar 82 on the opposite side and the light guide plate 5 to be too large, and the light and the light guide plate The gap is larger, resulting in poor display.
  • the second elastic support member 6a is located between the two first elastic support members 6b.
  • the second elastic support member 6a is located at a middle position close to the long side of the light guide plate 5 to effectively prevent the light guide plate 5 from bouncing.
  • the second elastic support member 6a may not contact the light guide plate 5 to prevent bounce. In some embodiments, the second elastic support member 6a contacts the light guide plate 5 but does not generate an interaction force. In some embodiments, the second elastic support member 6a is extruded and deformed by the light guide plate 5, and the deformation amount of the second elastic support member 6a is smaller than the deformation amount of the first elastic support member 6a.
  • the number of the second elastic support member 6a is one, and the above-mentioned second elastic support member 6a can be located in the groove 531, so that the above-mentioned second elastic support member 6a can 6a prevents the light guide plate 5 from bouncing to the side where the second elastic support member 6a is provided, and also prevents the support pillar 922 from impacting the light guide plate.
  • the edge-type backlight 8 includes a first printed circuit board 81 and an LED light bar 82 disposed on the first printed circuit board 81; At least one pressure-bearing member 83 (such as the second pressure-bearing member 83a shown in FIG. 14 and the first pressure-bearing member 83b shown in FIG. 15) on the surface of the first printed circuit board 81 opposite the light guide plate 5, It is used to support the light guide plate 5 and maintain a certain distance from the LED light bar 82 .
  • the pressure-bearing member 83 can also be disposed on the side of the backplane where the edge-type backlight 8 is provided.
  • each LED light bar 82 there are multiple LED light bars 82 , and they are arranged sequentially along the long side direction of the light guide plate 5 , corresponding to each LED light bar 82 .
  • At least one pressure-bearing member 83 is provided.
  • the number of pressure-bearing members 83 corresponding to each LED light bar 82 can be set according to the length of the LED light bar 82.
  • multiple pressure-bearing members 83 are provided corresponding to each LED light bar 82.
  • the pressure-bearing member 83 can disperse the scratching force exerted by the expansion or contraction of the light guide plate 5 and reduce the risk of being scratched off by the light guide plate 5 .
  • seven pressure-bearing members 83 are provided corresponding to each LED light bar 82 (only a part of the number of pressure-bearing members 83 is shown in FIGS. 14 and 15 ).
  • the friction coefficient of the surface of the first elastic support 6 b opposite to the light guide plate 5 is less than or equal to 1, and is preferably reduced as much as possible, so as to avoid the light guide plate 5 under high temperature conditions.
  • the elastic support member may be lifted up, causing the light guide plate to apply excessive scraping force to the pressure-bearing member, thus reducing the risk of the pressure-bearing member being scraped off by the light guide plate 5 .
  • a protective layer (not shown in the figure) is provided on the surface of the first elastic support member 6b opposite to the light guide plate 5.
  • This protective layer is used to reduce the friction of the first elastic support member 6b. coefficient.
  • the friction force between the elastic support member and the light guide plate 5 can be reduced.
  • the main part of the elastic support member can be made of rubber
  • the protective layer can be polyester resin (Polyethylene terephthalate, also known as polyethylene terephthalate) tape
  • the surface of the elastic support member can be vulcanized.
  • the friction coefficient between the main part of the elastic support member and the light guide plate 5 is 4. After the above protective layer is attached, the friction coefficient can be reduced to 0.5, and the friction coefficient is reduced by 87.5%, thereby effectively avoiding the friction between the light guide plate 5 and the light guide plate 5 It may cause friction under high temperature conditions.
  • At least one side of the light guide plate 5 except for the light incident surface is covered with a reflective layer 52 for reflecting at least one side of the light guide plate 5 except for the light incident surface.
  • the light on one side is reflected back to the inside of the light guide plate 5, thereby ensuring that there is no problem of uneven brightness in the picture.
  • the reflective layer 52 can be made of a material with specular reflection, such as silver reflective sheet or silver reflective tape.
  • the display module further includes at least one second printed circuit board 22 , for example, four second printed circuit boards 22 , and each second printed circuit board 22 is The circuit board 22 is electrically connected to the display panel 2 through three cables (such as COF, chip on film) 21, and is used to transmit display signals to the display panel 2; optionally, the second printed circuit board 22 can be multiple, At least one pair of second printed circuit boards 22 among the plurality of second printed circuit boards 22 are electrically connected through a flexible circuit board (FPC) 23. As shown in FIG.
  • FPC flexible circuit board
  • the second printed circuit boards 22 are 4 For example, four second printed circuit boards 22 are arranged in sequence along the long side direction parallel to the backplane body 91 , where the leftmost second printed circuit board 22 in FIG. 17 and the adjacent third printed circuit board 22 are arranged in sequence.
  • the two printed circuit boards 22 are electrically connected through a flexible circuit board.
  • the rightmost second printed circuit board 22 and the adjacent second printed circuit board 22 are electrically connected through a flexible circuit board 23; and,
  • the two adjacent second printed circuit boards 22 located in the middle are both electrically connected to the timing controller 28 through a flexible flat cable (Flexible Flat Cable, FFC) 27 .
  • the flexible circuit board 23 is movably fixed on the side of the backplane main body 91 facing away from the backlight assembly.
  • the flexible circuit board 23 has a certain degree of freedom to move relative to the backplane main body 91, thereby enabling the flexible circuit board 23 to be used in a vertical screen mode.
  • the display effect is ensured, and an ultra-long display screen (especially a strip screen, with a length of, for example, more than 600 mm) can be realized that is compatible with both horizontal and vertical screens.
  • At least one elastic mounting member is provided between each second printed circuit board 22 and the surface of the backplane body 91 on the side facing away from the backlight assembly, for attaching the second printed circuit board 22 to the backlight assembly.
  • the circuit board 22 is limited to the surface of the backplane main body 91 on the side facing away from the backlight assembly. Specifically, as shown in FIG.
  • the above-mentioned elastic mounting members include elastic mounting members located between the backplane main body 91 and the second printed circuit board 22
  • One end of the part 241 away from the main part 24 of the elastic mounting part is respectively provided with limiting and bending parts 242 opposite each other.
  • the main part 24 of the elastic mounting part, the two limiting bending parts 241 and the two limiting bending parts 242 are paired.
  • the second printed circuit board 22 is disposed semi-encircling the second printed circuit board 22 to limit the position of the second printed circuit board 22 . Since the above-mentioned elastic mounting member can produce a certain elastic deformation, the second printed circuit board 22 can be installed into the elastic mounting member main part 24, the two limiting bending parts 241 and the two limiting bending parts 242. When the space is semi-enclosed, the opening between the two limiting bending members 242 can be enlarged by elastic deformation, so that the second printed circuit board 22 can smoothly enter the semi-enclosed space from the opening. Thus, the second printed circuit board 22 can be attached and detached.
  • the second printed circuit board 22 is allowed to sink a certain distance toward the ground under the action of gravity, thereby realizing the second printed circuit board.
  • the board 22 and the cable 21 can be displaced together with the display panel 2. Compared with using screws or other rigid installation methods, this can prevent the second printed circuit board 22 from being fixed when the display panel 2 sinks.
  • the cable 21 is pulled to cause light leakage, thereby enabling an ultra-long display screen (especially a bar-shaped screen, with a length of, for example, more than 600 mm) compatible with both horizontal and vertical screens.
  • each limiting bending portion 241 has a first position between the limiting bending portion 241 and the second printed circuit board 22 in a direction perpendicular to the extension direction of the second printed circuit board 22 .
  • Gap D8; each limiting bending member 242 has a second gap D9 between the second printed circuit board 22 and the direction perpendicular to the plane of the light-emitting surface of the display panel 2.
  • the first gap D8 is, for example, 0.15 mm; the second gap D9 is, for example, 0.2 mm.
  • each elastic mounting part is provided corresponding to each second printed circuit board 22, and each elastic mounting part is located between two adjacent cables 21.
  • the spacing between the two elastic mounting members is 259mm, but the embodiment of the present disclosure is not limited to this. In practical applications, the spacing can be determined according to the length of the second printed circuit board 22 and the number and distribution of the cables 21 Set, for example, the pitch to be greater than or equal to half the length of the second printed circuit board 22 .
  • the width of the elastic mounting member main body 24 in the length direction parallel to the second printed circuit board 22 is, for example, greater than or equal to 8 mm, such as 10 mm;
  • the thickness of 24 in the direction perpendicular to the plane of the light-emitting surface of the display panel 2 is 1.5 mm (including the thickness of the adhesive that bonds the elastic mounting member main part 24 and the backplane main body 91 together, for example, 0.1 mm).
  • the side of the second printed circuit board 22 close to the backplane main body 91 includes at least one grounding area, and the grounding area is connected to the side of the backplane main body 91 away from the backlight assembly.
  • a conductive flexible component 26 is provided between the surfaces for electrically connecting the grounding area and the backplane main body 91 .
  • the conductive flexible component 26 is adhesively connected to the grounding area and the backplane main body 91 respectively.
  • the backplane main body 91 has a grounding end (for example, located on one of the short sides). With the conductive flexible component 26 , the second printed circuit board 22 can be grounded through the backplane main body 91 .
  • the conductive flexible components 26 are, for example, conductive foam, and their number is the same as the number of conductive areas (eg, exposed copper areas) on the second printed circuit board 22 and are arranged in one-to-one correspondence. With the conductive flexible component 26 in elastic contact with the second printed circuit board 22 and the backplane main body 91 respectively, it can be ensured that the second printed circuit board 22 and the backplane main body 91 are always effectively and well grounded, thereby enabling Improve the reliability of the electrical characteristics of the display module; at the same time, the above-mentioned conductive flexible component 26 can also allow the second printed circuit board 22 to produce a small relative displacement relative to the backplane body 91 when the screen is used vertically, thereby ensuring that the screen can be used vertically. When the screen is used, the second printed circuit board 22 and the backplane main body 91 can also remain effectively and well grounded.
  • each conductive flexible component 26 is, for example, square, with a side length of 5 mm; the thickness of the conductive flexible component 26 in the direction perpendicular to the plane where the light exit surface of the display panel 2 is located is 2 mm.
  • the maximum compression ratio that can be achieved is, for example, 50%.
  • these dimensions can be determined according to the dimensions of the conductive flexible component 26 The thickness and ground area area are adjusted.
  • a fixing tape 25 is provided on the surface of the backplane body 91 facing away from the backlight assembly and at a position corresponding to the flexible circuit board 23 .
  • 25 includes a non-glue part 251, a first glue part 252 and two second glue parts 253, wherein at least a part of the flexible circuit board 23 is located between the backplane body 91 and the non-glue part 251; the first glue part 252
  • the two second glued parts 253 are respectively located on three sides of the glueless part 251 and are integrated with the glueless part 251; the two second glued parts 253 are respectively located on both sides of the glueless part 251; for example, the first
  • the glued portion 252 is pasted on the surface of the backplane body 91 on the side facing away from the backlight assembly; a first avoidance gap D6 is provided between the first glued portion 252 and the flexible circuit board 23 ; for example, two second glued portions 253 are pasted A second avoidance gap
  • the orthographic projection of the backplane body 91 on a plane parallel to the light-emitting surface of the display panel 2 is a rectangle
  • the second printed circuit board 22 is in a strip shape, and extends along the long side of the rectangle of the backplane body 91
  • the above-mentioned third printed circuit board 22 is strip-shaped.
  • a glued part 252 is located on one side of the non-glued part 251 away from the long side of the rectangle of the backplane body 91 , and extends in a direction parallel to the long side of the rectangle of the backplane body 91 , and is between it and the flexible circuit board 23 perpendicular to the backplane.
  • the above-mentioned first avoidance gap D6 is provided in the rectangular long side direction of the main body 91; the two second glued portions 253 are arranged oppositely on both sides of the flexible circuit board 23 in the rectangular long side direction parallel to the back plate main body 91, and each The second glued portion 253 and the flexible circuit board 23 are provided with the above-mentioned second avoidance gap D7 in a direction parallel to the rectangular long side of the back plate body 91 .
  • the above-mentioned first escape gap D6 and the second escape gap D7 are both 5 mm, for example.
  • the flexible circuit board 23 is protected with the help of the above-mentioned fixing tape 25, which can not only ensure that the flexible circuit board 23 is protected from scratches, but also ensure that the flexible circuit board 23 is parallel to the There are sufficient degrees of freedom in the two-dimensional plane where the backplane main body 91 is located, that is, the flexible circuit board 23 can be movably fixed on the side of the backplane main body 91 away from the backlight assembly, so that when the screen is used vertically, the flexible circuit board 23 can be movably fixed.
  • the display effect is ensured, and an ultra-long display screen (especially a strip screen, with a length of, for example, more than 600 mm) can be realized that is compatible with both horizontal and vertical screens.
  • the above-mentioned second avoidance gap D7 is greater than or equal to the sinking displacement of the display panel 2 when the display module is used in the vertical screen. ° C) to ensure that the flexible circuit board 23 has sufficient moving space under low temperature conditions.
  • the above-mentioned first avoidance gap D6 is greater than or equal to the shrinkage amount of the back plate 9 in the direction parallel to its short side under the condition of the lowest operating temperature of the display module (for example, -20°C or -30°C).
  • the outline of the backplane body 91 parallel to the light-emitting surface of the display panel 2 is a rectangle; the second printed circuit board 22 is strip-shaped and extends along the long side of the rectangle. ;
  • the surface of the backplane main body 91 facing away from the backlight assembly, and located on the long side of the second printed circuit board 22 away from the backplane main body 91 is provided with a reinforcing rib 911 that is recessed toward the direction closer to the display panel 2.
  • the reinforcing ribs 911 extend in a direction parallel to the long side of the back plate main body 91 and are used to enhance the strength of the back plate 9 and avoid bending deformation.
  • a part of the orthographic projection of the flexible circuit board 23 on the back plate main body 91 can be located in the recessed portion of the reinforcing rib 911 , and this part of the flexible circuit board 23 is located between the back plate main body 91 and the glue-free portion 251 ;
  • the first glued portion 252 is pasted on the bottom surface of the recessed portion, and at least part of the two second glued portions 253 are also located in the recessed portion of the reinforcing rib 911 and are pasted on the side and/or bottom surface of the recessed portion.
  • a part of the front projection on the back plate body 91 may be located in the recessed part of the reinforcing rib 911, and the part of the flexible circuit board 23 may be pressed into the recessed part by the glue-free part 251 to achieve the flexible circuit board 23. Cover and secure.
  • the length ⁇ width of the overlapping area between the adhesive-free part 251 and the flexible circuit board 23 is equal to 125 mm ⁇ 15 mm, and the length ⁇ width of the fixing tape 25 is equal to 155 mm ⁇ 30 mm.
  • the respective widths of the first glued portion 252 and the two second glued portions 253 are greater than or equal to 8 mm to ensure sufficient bonding strength with the back plate main body 91.
  • the above-mentioned glue-free portion 251 spans the recessed portion of the reinforcing rib 911, but is not provided in the recessed portion of the reinforcing rib 911; the first glue-free portion 251
  • the two second glued portions 253 are located on the long side of the recessed portion of the reinforcing rib 911 away from the back plate main body 91 .
  • the orthographic projections of the first glued portion 252 and the two second glued portions 253 on the back plate main body 91 are not disposed in the recessed portion of the reinforcing rib 911 .
  • the shown fixing scheme of the flexible circuit board 23 is more suitable for ultra-long display screens (especially strip screens, with a length of, for example, more than 600 mm) and is compatible with both horizontal and vertical screens, especially when the display module has the lowest operating temperature ( Under conditions such as -20°C or -30°C), since the hardness of the flexible circuit board 23 and the fixing tape 25 increases relative to room temperature (for example, 25°C), the restriction of the fixed tape 25 on the flexible circuit board 23 will increase, resulting in flexibility.
  • the circuit board 23 cannot be displaced together with the second printed circuit board 22 and the cable 21, thus affecting the display effect.
  • the fixing scheme of the flexible circuit board 23 shown in Figure 22 ensures that the second printed circuit board 22 has more The degree of freedom of displacement can solve this problem well.
  • the length ⁇ width of the fixing tape 25 is equal to 177mm ⁇ 52mm; the length ⁇ width of the overlapping area between the adhesive-free portion 251 and the flexible circuit board 23 is equal to 125mm ⁇ 20mm.
  • the first Each width of the glued portion 252 and the two second glued portions 253 is greater than or equal to 8 mm to ensure sufficient bonding strength with the back plate main body 91 .
  • the fixing tape 25 includes an adhesive-free part 251 and may only include a first adhesive part 252 , or the fixing tape 25 includes an adhesive-free part 251 and may only include two second adhesive parts. 253, as long as the flexible circuit board 23 is limited.
  • the display module provided by the embodiment of the present disclosure is suitable for ultra-long display screens (especially strip screens, the length of which is, for example, more than 600 mm, such as 2 m).
  • the display panel 2 The diagonal size of the display area is greater than or equal to 47.1 inches, and the aspect ratio of the display area of the display panel 2 is greater than or equal to 3.2.
  • the diagonal size of the display area of the display panel 2 is equal to 48 inches.
  • the aspect ratio of the display area is equal to 3.2; for example, the diagonal size of the display area of the display panel 2 is equal to 47.1 inches, and the aspect ratio of the display area of the display panel 2 is equal to 24.
  • an embodiment of the present disclosure also provides a display device, which includes the above-mentioned display module provided by an embodiment of the present disclosure.
  • the display module is a bar-shaped display module, that is, the aspect ratio of the display area is greater than 1.
  • the aspect ratio of the display area of the display panel 2 is greater than or equal to 16:5.
  • Embodiments of the present disclosure also provide a display device, which can realize an ultra-long display screen (especially a strip screen, with a length of, for example, more than 600 mm) compatible with a horizontal screen by using the above display module provided by an embodiment of the present disclosure. , On the basis of vertical screen use, it ensures that the optical film layer will not be misaligned and meets the requirements for narrow borders.
  • the display device provided by the embodiment of the present disclosure can be used in intelligent transportation fields such as buses and subways.
  • it can be used in subway screen door display and semi-outdoor stop sign display to facilitate passengers to view subway station and other information and improve the passenger riding experience.
  • it can also be applied to advertising display in subways, buses, etc.

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Abstract

一种显示模组及显示面板(2),显示模组中,背光组件包括光源组件以及光学膜层(4),光源组件发出的光经过光学膜层(4)进入显示面板(2);光学膜层(4)的至少一长边和至少一短边上均设置有沿垂直于显示面板(2)出光面所在平面的方向贯通光学膜层(4)的通槽(411);显示模组还包括中框(3),中框(3)包括环绕背光组件设置的中框主体(31)以及位于显示面板(2)与光学膜层(4)之间的第一延伸部(37),中框(3)还包括与通槽(411)相对的表面上设置的第二凸部(33),第二凸部(33)对应设置于通槽(411)中。可以在实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用的基础上,保证光学膜层(4)不会出现错位,同时满足窄边框需求。

Description

显示模组及显示装置 技术领域
本发明涉及显示技术领域,具体地,涉及一种显示模组及显示装置。
背景技术
液晶条形屏是近期逐渐走进人们生活和工作的新型显示载体,随着条形屏的使用范围越来越广,在公交、地铁等智能交通领域也迅速发展起来。尤其是超长尺寸的条形屏,其可用于诸如车站中的广告投放、公交导乘显示等场景,而且兼容横屏、竖屏使用,为广大群众带来更直接的视觉便利。
但是,对于超长尺寸的显示屏(尤其是条形屏),其在能够兼容横屏、竖屏使用的前提下,很难保证光学膜层不会出现错位问题,虽然现有技术采用限位结构限定光学膜层的位置,但是现有的限位结构会导致显示模组的边框过宽,从而无法满足窄边框需求。
发明内容
本发明旨在至少解决现有技术中存在的技术问题之一,提出了一种显示模组及显示装置,其可以在实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用的基础上,保证光学膜层不会出现错位,同时满足窄边框需求。
为实现上述目的,本公开实施例提供一种显示模组,包括显示面板、位于背离所述显示面板的出光面一侧的背光组件,其中,所述背光组件包括光源组件以及光学膜层,所述光源组件发出的光经过所述光学膜层进入所述显示面板;
所述光学膜层的至少一长边和至少一短边上均设置有沿垂直于所述显 示面板出光面所在平面的方向贯通所述光学膜层的通槽;
所述显示模组还包括中框,所述中框包括环绕所述背光组件设置的中框主体以及位于所述显示面板与所述光学膜层之间的第一延伸部;所述中框还包括与所述通槽相对的表面上设置的第二凸部,所述第二凸部对应设置于所述通槽中。
可选的,所述光学膜层的长边上的所述通槽为多个,且所述光学膜层的长边上的所有所述通槽中,最中间的一个所述通槽偏离所述光学膜层平行于其短边的、垂直于所述显示面板出光面所在平面的对称面设置;其余的所述通槽相对于所述光学膜层平行于其短边的、垂直于所述显示面板出光面所在平面的对称面对称分布;
所述光学膜层的短边上的所述通槽为多个,且相对于所述光学膜层平行于其长边的、垂直于所述显示面板出光面所在平面的对称面对称分布。
可选的,所述光学膜层的至少一长边和至少一短边上均设置有第一凸部,所述第一凸部沿与所述光学膜层入光面所在平面平行的方向朝向所述光学膜层边缘以外延伸;所述通槽在所述第一凸部朝向所述光学膜层边缘以外延伸的最远端背离所述最远端的位置设置。
可选的,所述光学膜层的长边上的相邻两个所述第一凸部之间具有第一间距,最靠近所述光学膜层的短边的所述第一凸部与所述光学膜层的短边之间具有第二间距;
所述第一间距大于等于160mm,且小于等于300mm;所述第二间距大于等于50mm,且小于等于150mm。
可选的,所述光学膜层的短边上的相邻两个所述第一凸部之间具有第三间距,最靠近所述光学膜层的长边的所述第一凸部与所述光学膜层的长边之间具有第四间距;
所述第三间距大于等于50mm,且小于等于150mm;所述第四间距大于 等于30mm,且小于等于70mm。
可选的,所述光源组件还包括位于所述光学膜层背离所述显示面板一侧,且沿远离所述光学膜层的方向依次设置的导光板和反射片;所述光源组件还包括与所述导光板相对设置的侧入式背光源;
所述导光板对应所述光学膜层的长边和/或短边上的所述第一凸部的位置设置有第三凸部,所述第三凸部在平行于所述出光面所在平面上的正投影与所述第一凸部在平行于所述出光面所在平面上的正投影部分重叠。
可选的,所述第三凸部在所述显示面板出光面所在平面上的正投影覆盖所述通槽在所述显示面板出光面所在平面上的正投影的面积大于或等于所述通槽在所述出光面所在平面上的正投影的面积的二分之一。
可选的,在所述导光板延伸方向上,所述第三凸部和与之相对的部件之间设有第一预留膨胀间距;在所述导光板延伸方向上,所述导光板的侧边除所述第三凸部之外的其余部分和与之相对的部件之间设有第二预留膨胀间距。
可选的,所述显示模组还包括背板,所述背板包括位于所述背光组件背离所述显示面板一侧的背板主体,和环绕所述背光组件设置的背板侧边;
所述中框还包括中框侧边和止反挡墙,所述中框侧边和止反挡墙在垂直于所述显示面板出光面的方向上位于所述背板主体靠近所述显示面板一侧;在平行于所述显示面板出光面的方向上,所述止反挡墙位于所述背板侧边靠近所述光学膜层的一侧,所述背板侧边位于所述中框侧边与所述止反挡墙之间;
所述止反挡墙与所述导光板的侧边除所述第三凸部之外的其余部分之间的间距即包括所述第二预留膨胀间距;
所述止反挡墙与所述导光板相对的表面上对应所述第三凸部的位置处设置有避让通槽,所述背板侧边在所述避让通槽处与所述第三凸部之间的间 距包括所述第一预留膨胀间距。
可选的,所述光源组件还包括位于所述光学膜层背离所述显示面板一侧,且沿远离所述光学膜层的方向依次设置的导光板和反射片;所述光源组件还包括与所述导光板相对设置的侧入式背光源;
所述通槽仅设置在所述光学膜层的一长边和一短边上;
所述光学膜层与所述侧入式背光源对应的另一长边不设置所述通槽;
所述显示面板的显示区轮廓为矩形。
可选的,所述显示模组还包括背板,所述背板包括位于所述背光组件背离所述显示面板一侧的背板主体,和环绕所述背光组件设置的背板侧边,所述光源组件还包括位于所述光学膜层背离所述显示面板一侧,且沿远离所述光学膜层的方向依次设置的导光板和反射片;所述光源组件还包括与所述导光板相对设置的侧入式背光源;其中,
位于所述侧入式背光源对侧的所述背板侧边与所述导光板相对的表面上设置有至少一个支撑柱;所述支撑柱朝向所述导光板延伸,所述导光板包括对应所述支撑柱设置的的凹槽,所述支撑柱延伸至所述凹槽中;
所述导光板在所述支撑柱一侧的表面包括平行于所述导光板所在平面延伸的第四凸部,所述凹槽设置于所述第四凸部上。
可选的,所述支撑柱为两个,且相对于设置支撑柱的所述背板侧边的垂直于所述显示面板出光面所在平面的对称面对称分布。
可选的,所述支撑柱与所述光学膜层在平行于所述显示面板的出光面所在平面的方向上部分重叠;所述支撑柱与所述光学膜层在垂直于所述显示面板的出光面所在平面的方向上相互间隔。
可选的,位于所述侧入式背光源对侧的所述背板侧边与所述导光板相对的表面上设置有至少一个弹性支撑件,用于支撑所述导光板;
所述侧入式背光源包括第一印制电路板和设置在所述第一印制电路板 上的LED灯条;所述第一印制电路板与所述导光板相对的表面上至少一个承压件,用于支撑所述导光板。
可选的,所述至少一个弹性支撑件包括两个第一弹性支撑件和一个第二弹性支撑件,其中,所述两个第一弹性支撑件处于压缩状态,所述第二弹性支撑件与所述导光板之间存在间隙;
所述两个第二弹性支撑件分别位于靠近所述导光板的长边的两个边缘位置;所述第一弹性支撑件位于所述两个第一弹性支撑件之间。
可选的,所述第一弹性支撑件与所述导光板相对的表面上包括保护层,所述保护层用于降低所述第一弹性支撑件主材料的摩擦系数。
可选的,所述显示模组还包括背板,所述背板包括位于所述背光组件背离所述显示面板一侧的背板主体,所述显示模组还包括至少一个第二印制电路板,所述第二印制电路板通过排线与所述显示面板电连接,用于为所述显示面板传递显示信号,其中,
在所述第二印制电路板与所述背板主体背离所述背光组件一侧的表面之间设置有至少一个弹性安装件,用于将所述第二印制电路板限位于所述背板主体背离所述背光组件一侧的表面;
所述弹性安装件包括位于所述背板主体以及所述第二印制电路板之间的弹性安装件主体部,以及与所述弹性安装件主体部连接的两个限位弯折部,所述两个限位弯折部的主要部分沿远离所述背板主体方向延伸;所述两个限位弯折部远离弹性安装件主体部的一端分别设置有相互对设的限位弯折件,所述弹性安装件主体部、所述两个限位弯折部以及两个所述限位弯折件对所述第二印刷电路板半包围地设置,以对所述第二印刷板限位。
可选的,每个所述限位弯折部在垂直于所述第二印制电路板的延伸方向上与所述第二印制电路板之间具有第一间隙;每个所述限位弯折部在垂直于所述出光面所在平面的方向上与所述第二印制电路板之间具有第二间隙;
所述第二印制电路板靠近所述背板主体的一侧包括至少一个接地区,所述接地区与所述背板主体背离所述背光组件一侧的表面之间设置有导电柔性部件,用于将所述接地区与所述背板主体电导通;
所述导电柔性部件与所述接地区及所述背板主体分别粘贴连接。
可选的,所述第二印制电路板的数量为多个,其中,至少一对所述第二印制电路板之间通过柔性电路板电连接,所述柔性电路板可活动地固定于所述背板主体背离所述背光组件一侧。
可选的,所述背板主体背离所述背光组件一侧的表面上,且与所述柔性电路板对应的位置处设置有固定胶带,所述固定胶带包括无胶部、第一有胶部和两个第二有胶部,其中,
至少一部分所述柔性电路板位于所述背板主体与所述无胶部之间;
所述第一有胶部和两个第二有胶部分别位于所述无胶部的三边,并与所述无胶部连为一体;所述两个第二有胶部分别位于所述无胶部的两边;
所述第一有胶部与所述柔性电路板之间包括第一避让间隙,所述第二有胶部与所述柔性电路板之间包括第二避让间隙。
可选的,所述背板主体与所述显示面板出光面平行的面轮廓为矩形;所述第二印制电路板为条形且沿着所述矩形的长边延伸;其中,
所述背板主体背离所述背光组件一侧的表面,且位于所述第二印制电路板远离所述背板主体的长边一侧设置有朝向靠近所述显示面板方向凹进的加强筋,所述加强筋沿平行于所述背板主体的长边方向延伸;所述柔性电路板在所述背板主体上的正投影的一部分位于所述加强筋凹进部分中;
至少一部分所述柔性电路板位于所述背板主体与所述无胶部之间;
所述第一有胶部位于所述加强筋的凹进部分远离所述背板主体的长边一侧;两个所述第二有胶部位于所述加强筋的凹进部分靠近所述背板主体的长边一侧。
可选的,所述显示面板的显示区的对角线尺寸大于等于47.1英寸;所述显示面板的显示区的长宽比大于等于3.2。
作为另一个技术方案,本公开实施例还提供一种显示装置,包括本公开实施例提供的上述显示模组,所述显示模组为条形显示模组。
附图说明
图1为本公开实施例提供的显示模组的结构分解图;
图2为本公开实施例提供的显示模组在横屏放置时的正面视图;
图3为图2中沿A1线的剖视图;
图4为本公开实施例采用的光学膜层的局部结构图;
图5为本公开实施例采用的多个第一凸部分别在光学膜层的长边和短边上的分布示意图;
图6A为本公开实施例采用的光学膜层、导光板和背板在其中一个第一凸部处的位置关系示意图;
图6B为本公开实施例采用的通槽在光学膜层的短边上的结构图;
图7为图2中沿A2线的剖视图;
图8为本公开实施例采用的支撑柱的结构图;
图9为本公开实施例采用的支撑柱与导光板的位置关系示意图;
图10为图2中沿A3线的剖视图;
图11为本公开实施例提供的显示模组在横屏放置时的正面视图;
图12为图11中B1区域的局部放大图;
图13为图11中B2区域的局部放大图;
图14为图11中B3区域的局部放大图;
图15为图11中B4区域的局部放大图;
图16为本公开实施例采用的显示面板、第二印制电路板和柔性电路板的连接示意图;
图17为本公开实施例采用的背板在背离背光组件一侧的结构图;
图18为本公开实施例采用的第二印制电路板与背板的连接示意图;
图19为本公开实施例提供的显示模组在弹性安装件处的局部剖视图;
图20为本公开实施例采用的弹性安装件的剖视图;
图21为本公开实施例采用的固定胶带的一种结构图;
图22为本公开实施例采用的固定胶带的另一种结构图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明作进一步地详细描述,显然,所描述的实施例仅是本发明的部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
附图中各部件的形状和大小不反映真实比例,目的只是为了便于对本公开实施例的内容的理解。
除非另外定义,本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性,而只是用来区分不同的组成部分。同样,“一个”、“一”或者“该”等类似词语也不表示数量限制,而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同,而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接,而是可以包括电性的连接,不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系,当被描述对象的绝对位置改变后,则该相对位置关系也可能相应地改变。
本公开实施例不限于附图中所示的实施例,而是包括基于制造工艺而形成的配置的修改。因此,附图中例示的区具有示意性属性,并且图中所示区 的形状例示了元件的区的具体形状,但并不是旨在限制性的。
请参阅图1,本公开实施例提供的显示模组,其包括边框1、显示面板2、中框3、背光组件、背板9和电路板组件10(包括恒流板及其保护罩、时序控制器及其保护罩)。其中,背光组件设置于背离显示面板2的出光面一侧,该背光组件包括光源组件以及光学膜层(包括至少一层功能膜材)4,该光源组件发出的光经过光学膜层进入显示面板2;具体地,背光组件可以是侧入式背光组件,也可以式直下式背光组件。当背光组件8为侧入式背光组件时,该光源组件还包括位于光学膜层4背离显示面板2一侧,且沿远离光学膜层4的方向依次设置的导光板5和反射片7;另外,光源组件还可以包括与导光板5相对设置的侧入式背光源8。这里的相对设置,是指侧入式背光源8与导光板5的垂直于显示面板2的出光面所在平面的入光面相对设置。光学膜层4例如可以起到匀光的效果。在实际应用中,光学膜层4例如包括下扩散膜、棱镜膜等的多层光学膜材,其中,下扩散膜用于将光线扩散;棱镜膜用于提高光线的亮度,可选的,还可以增加上扩散膜或者其他功能膜材。
请一并参阅图2-图4,光学膜层4的至少一长边和至少一短边上均设置有沿垂直于显示面板出光面所在平面的方向贯通所述光学膜层的通槽411。通槽411可以与显示模组的其他结构(例如:中框)相互配合,在两个方向上对光学膜层4进行限位,从而可以在实现显示模组兼容横屏、竖屏使用的基础上,保证光学膜层4不会出现错位。
优选地,光学膜层4的至少一长边和至少一短边上均设置有第一凸部41;可选地,第一凸部41沿与光学膜层4入光面所在平面平行的方向朝向光学膜层4边缘以外延伸。可选的,通槽411设置在第一凸部41朝向光学膜层4边缘以外延伸的最远端背离该最远端的位置设置。在实际应用中,通槽411可以部分或者全部位于第一凸部41内部,也可以临近第一凸部41设计。例如,第一凸部41上设置有沿垂直于显示面板2的出光面所在平面的方向贯通 第一凸部41的通槽411。通过采用第一凸部41与通槽411配合的方案,保证了光学膜层4在显示模组横向或竖向放置时的稳定受力,又可以减少光学膜层4在其边缘区的尺寸,从而有利于减小显示模组的边框尺寸。在一些可选实施例中,在至少一长边或至少一短边上也可以仅设置通槽411而不设置第一凸部41,通槽411可以直接在光学膜层4的边缘设置。
在一些具体实施例中,显示模组还包括中框3,中框3包括环绕上述背光组件设置的中框主体31;中框3还包括与通槽411相对的表面上设置的第二凸部33,第二凸部33对应设置于所述通槽中。具体地,所述与通槽411相对的表面可以是中框主体31的一部分的表面,例如可以是中框主体31沿着平行于显示面板2出光面所在平面延伸的部分朝向通槽411的表面。
在一些具体实施例中,显示模组还包括位于显示面板2与光学膜层4之间的第一延伸部37,第一延伸部37用于承载显示面板2,并与中框主体31连接设置。具体地,第一延伸部37与中框主体31可以为一次成型结构。
在一些具体实施例中,第二凸部33位于第一延伸部37与通槽411相对的一侧,即所述与通槽411相对的表面可以是第一延伸部37的朝向通槽411的表面。
在一些具体实施例中,第二凸部33、第一延伸部37与中框主体31可以为一次成型结构
通过由通槽411和第二凸部33配合构成的类似“挂耳”的结构,在显示模组横屏使用时,可以利用光学膜层4的一长边对应的“挂耳”结构(此时位于显示模组的天侧,即,图2中的DP侧)实现光学膜层4的限位;同理,在显示模组竖屏使用时,可以利用光学膜层4的一短边对应的“挂耳”结构(此时位于显示模组的天侧)实现光学膜层4的限位,从而可以在实现显示模组兼容横屏、竖屏使用的基础上,保证光学膜层4不会出现错位,尤其对于超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上),可 以确保显示模组在应用于公交、地铁、推拉门等的高机械性能条件的应用场景时,光学膜层4不会因震动、重力作用等因素从第二凸部33处脱落。此外,通过采用第二凸部33伸入通槽411的结构无需在光学膜层4的侧边额外设置配合结构,也无需为该配合结构预留热膨胀空间,从而大大节省了光学膜层4的侧边处的空间,进而可以实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上,例如2m)的窄边框化设计。例如,现有的一种超长尺寸的显示模组,其轮廓的长边尺寸为2187.8mm,短边尺寸为12.9mm,与之相比,本申请提供的显示模组,其长边尺寸为2171.08mm,与上述现有的显示模组相近,而借助上述“挂耳”结构,短边尺寸仅为11.3mm,短边尺寸相对于现有技术优化14.2%,从而可以满足窄边框需求。
具体地,显示面板的出光面轮廓为矩形,或者大致为矩形;显示模组的外轮廓在显示面板出光面所在平面的正投影可以为矩形,或者大致为矩形;中框的外轮廓、导光板的外轮廓以及光学膜层的外轮廓在所述显示面板出光面所在平面的正投影可以都为矩形,或者大致都为矩形。所述矩形也可以包括圆角矩形,即矩形的四个角中至少有一个角为圆角。
在一些可选的实施例中,对于单侧设置的侧入式背光源8,即,通槽411仅设置在光学膜层4的一长边和一短边上,而且光学膜层4与侧入式背光源8对应的另一长边不设置通槽411,即,仅在光学膜层4的位于侧入式背光源8对侧的长边上设置通槽411,这样,以显示面板2的显示区轮廓为矩形为例,在显示模组横屏使用时,可以使侧入式背光源8位于显示模组的地侧(即,图2中的DPO侧),而通槽411位于显示模组的天侧(即,图2中的DP侧)。地侧(DPO侧)是指显示模组放置于放置面上时朝向放置面的一侧;天侧(DP侧)是指显示模组放置于放置面上时背离放置面的一侧。另外,在竖屏使用时,可以使短边上的通槽411位于显示模组的天侧(即,图2中的DP侧)。
通过使通槽411位于显示模组的天侧,光学膜层4可以在自身重力作用 下通过通槽411“悬挂”于对应的第二凸部33上,从而可以实现光学膜层4的限位。通过使侧入式背光源8位于显示模组的地侧,这是因为侧入式背光源8如果位于显示模组的天侧,可能存在导光板5在其重力作用下朝远离侧入式背光源8的方向偏移,从而给显示效果带来不良影响,当然,本公开实施例并不局限于此,在实际应用中,也可以在光学膜层4的位于侧入式背光源8所在的长边上设置第一凸部41。
在一些可选的实施例中,如图5所示,光学膜层4的长边上的第一凸部41a为多个,且光学膜层4的长边上的所有第一凸部41a中,最中间的一个第一凸部41a’偏离光学膜层4平行于光学膜层4短边的、垂直于显示面板2出光面所在平面的对称面(即,图5中偏离中心轴线O2)的设置;其余的第一凸部41a相对于光学膜层4平行于光学膜层4短边的、垂直于显示面板2出光面所在平面的对称面(即,图5中偏离中心轴线O2)对称分布。光学膜层4的短边上的第一凸部41b为多个,且相对于光学膜层4平行于光学膜层4长边的、垂直于显示面板2出光面所在平面的对称面(即,图5中偏离中心轴线O1)对称分布。通过使最中间的一个第一凸部41a’偏离设置,可以实现组装防呆,即,避免产生组装错误。
在一些可选的实施例中,如图5所示,光学膜层4的长边上的相邻两个第一凸部41a之间具有第一间距,最靠近光学膜层4短边的第一凸部41a与光学膜层4的短边之间具有第二间距;该第一间距大于等于160mm,且小于等于300mm;该第二间距大于等于50mm,且小于等于150mm。通过将上述第一间距和第二间距设定在上述范围内,可以确保光学膜层4在长边方向上产生热膨胀时,光学膜层4在各相邻两个第一凸部41a之间以及最靠近光学膜层4短边的第一凸部41a与该短边之间不会产生堆积,造成画面褶皱异常,同时还可以避免因第一凸部41a的分布过于密集造成中框3上为避让第一凸部41a而设置的避让结构过多,从而造成中框3的整体强度降低的问题。
在一些可选的实施例中,如图5所示,光学膜层4的短边上的相邻两个第一凸部41b之间具有第三间距,最靠近光学膜层4的长边的第一凸部41b与光学膜层4的长边之间具有第四间距;该第三间距大于等于50mm,且小于等于150mm;该第四间距大于等于30mm,且小于等于70mm。通过将上述第三间距和第四间距设定在上述范围内,在显示模组竖屏使用时,可以减少单个第一凸部41b承受的重量,从而可以确保单个第一凸部41b因承重而产生的塑性变形量不超出光学膜层4在高温信赖性条件下的塑性变形极限强度,从而可以避免单个第一凸部41b在信赖性测试中出现不可逆形变,影响显示效果。
在一些可选的实施例中,如图3和图6A所示,导光板5对应光学膜层4的长边和/或短边上的第一凸部41的位置处设置有第三凸部51(第三凸部51的轮廓线如图6A中的虚线所示),该第三凸部51在平行于显示面板2的出光面所在平面上的正投影与第一凸部41在平行于显示面板2的出光面所在平面上的正投影部分重叠。通过使第三凸部51与第一凸部41部分重叠,可以对第一凸部41起到限位作用,从而在显示模组,尤其是超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)进行组装、运输等可能会产生振动的过程中,可以防止第一凸部41从导光板5与中框3之间的间隙中跳脱,提高了第一凸部41和其上的通槽411构成的类似“挂耳”的结构的连接稳定性,进一步保证光学膜层4不会出现错位。
优选地,为了提高第三凸部51的限位作用的有效性,第三凸部51在显示面板2的出光面所在平面上的正投影覆盖通槽411在显示面板2的出光面所在平面上的正投影面积大于或等于通槽411在显示面板2的出光面所在平面上的正投影面积的二分之一。进一步优选地,如图6A所示,第三凸部51在显示面板2的出光面所在平面上的正投影完全覆盖或大致完全覆盖通槽411在显示面板2的出光面所在平面上的正投影。
优选地,第三凸部51仅设置在导光板5对应光学膜层4的长边上的第一凸部41的位置处;并且如图6B所示,由于光学膜层4的短边尺寸小于长边尺寸,光学膜层4的短边上的第一凸部41可以通过胶材412与背板侧边92粘接固定,这同样可以起到防止第一凸部41从导光板5与中框3之间的间隙中跳脱的作用;进一步地,光学膜层4的短边上的通槽411在显示面板2的出光面所在平面上的正投影与导光板5在显示面板2的出光面所在平面上的正投影无交叠,进而可以为导光板5预留更多的膨胀空间。进一步优选地,导光板5对应光学膜层4的短边上的第一凸部41的位置处可以不设置上述第三凸部51。
优选地,如图6A和图6B所示,由于光学膜层4延长边的受热膨胀量相对更大,光学膜层4的短边上的通槽411在垂直于光学膜层4短边的宽度大于光学膜层4的长边上的通槽411在垂直于光学膜层4长边的宽度,以防止光学膜层4受挤压形变,影响显示模组的显示效果。
在一些可选的实施例中,如图3所示,边框1包括位于显示面板2背离中框主体31一侧且沿着平行于显示面板2出光面所在平面延伸的边框主体11,以及环绕中框3设置的边框侧边12。中框3还包括位于背板侧边92背离背光组件一侧的中框侧边34。
在一些可选的实施例中,导光板5在受热达到一定温度时会产生热膨胀,如果膨胀量过大,可能会影响显示模组的正常使用,对此,为了实现显示模组的存储温度满足宽温使用条件,即,显示模组能够在较宽范围的空间环境温度中正常使用,存储温度是指放置显示模组的空间环境的温度。另外,显示模组的工作温度一般不会超过上述存储温度的范围,因此,可以采用存储温度计算导光板5的膨胀量,当然,也可以采用工作温度计算导光板5的膨胀量。例如,工作温度大于等于-20℃,且小于等于60℃;或者,工作温度大于等于-30℃,且小于等于80℃。在导光板5的延伸方向上,第三凸部51 和与之相对的部件之间设有第一预留膨胀间距;在导光板5的延伸方向上,导光板5的侧边除第三凸部51之外的其余部分和与之相对的部件之间设有第二预留膨胀间距。
通过设定上述第一预留膨胀间距和第二预留膨胀间距,可以保证导光板51的第三凸部51所在一侧和其余部分所在一侧均预留出足够的膨胀空间。上述第一预留膨胀间距和第二预留膨胀间距是导光板5在室温(例如25℃)的条件下和与之相对的部件之间的间距,该间距应大于等于导光板5在其长边方向和短边方向上的热膨胀量。可选的,上述第一预留膨胀间距和第二预留膨胀间距例如能够大于等于在显示模组最高工作温度的条件下,导光板5在其长边方向和短边方向上的热膨胀量,即,即使显示模组在显示模组最高工作温度(例如为60℃或者80℃)的条件下使用,仍然可以保证导光板5和与之相对的部件之间的间距大于等于0。
在一个具体的实施例中,如图1和图7所示,显示模组还包括背板9,该背板9包括位于背光组件背离显示面板2一侧的背板主体91,和环绕背光组件设置的背板侧边92;并且,中框3还包括止反挡墙35,该止反挡墙35和中框侧边34在垂直于显示面板2出光面的方向上位于背板主体91靠近显示面板2一侧;在平行于显示面板2出光面的方向上,止反挡墙35位于背板侧边92靠近光学膜层4的一侧,背板侧边92位于中框侧边34与止反挡墙35之间。止反挡墙35与导光板5的侧边除第三凸部51之外的其余部分之间的间距包括第二预留膨胀间距。例如,如图7所示,止反挡墙35与导光板5的侧边除第三凸部51之外的其余部分之间的间距D2即为上述第二预留膨胀间距。借助止反挡墙35,可以与中框侧边34共同对背板侧边92进行限位,从而可以提高背板侧边92与中框3的连接稳定性,避免中框3翘起。在此基础上,为了在设置止反挡墙35的同时,保证给导光板5在第三凸部51所在一侧预留出足够的膨胀空间,止反挡墙35与导光板5相对的表面上对应第三 凸部51的位置处设置有避让通槽(图中未示出)。背板侧边92在该避让通槽处与第三凸部51之间的间距D1包括上述第一预留膨胀间距。例如,如图3所示,背板侧边92在该避让通槽处与第三凸部51之间的间距D1即为上述第一预留膨胀间距。换句话说,中框主体31对应第三凸部51所在位置处没有设置止反挡墙35,而对应没有第三凸部51的其余位置处设置有止反挡墙35,上述避让通槽即由相邻两个止反挡墙35之间的空缺构成的,由此可以保证导光板51的第三凸部51所在一侧和其余部分所在一侧均预留出足够的膨胀空间。
类似的,光学膜层4在受热达到一定温度时会产生热膨胀,如果膨胀量过大,可能会影响显示模组的正常使用,对此,为了实现显示模组的存储温度满足上述宽温使用条件,光学膜层4的第一凸部41和与之相对的部件之间设有预留膨胀间距;光学膜层4的侧边除第一凸部41之外的其余部分和与之相对的部件之间也设有预留膨胀间距。如图6A所示,为了保证光学膜层4的第一凸部41所在一侧和其余部分所在一侧均预留出足够的膨胀空间,在背板侧边92上,且与第一凸部41对应的位置处设置有通槽921,这样,在光学膜层4产生热膨胀时,可以延伸至通槽921中。
在一些可选的实施例中,位于侧入式背光源8对侧的背板侧边92与导光板5相对的表面上设置有至少一个支撑柱922;支撑柱922朝向导光板5延伸,导光板5包括对应支撑柱922设置的凹槽531,支撑柱922延伸至凹槽531中。通过至少一个支撑柱922与凹槽531相配合,可以对导光板5起到支撑作用,从而在显示模组竖屏使用时,可以避免导光板5因发生大幅度旋转而引起的入光不均,进而可以在实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用的基础上,保证显示效果。
可选的,上述支撑柱922还包括内嵌在背板侧边92中的连接部分923,用于实现支撑柱922与背板侧边92的固定连接。
可选地,导光板5在支撑柱922一侧的表面包括平行于导光板5所在平面延伸的第四凸部53,凹槽531设置于第四凸部上53。通过在上述第四凸部53上设置凹槽531,可以避免导光板5在凹槽531处的边界进入显示区成画面边缘亮线、暗影等显示不良。
可选地,如图9所示,第三凸部51与第四凸部53可以为一体结构。
例如,如图8至图10所示,位于侧入式背光源8对侧的背板侧边92与导光板5相对的表面上设置有至少一个支撑柱922,导光板5与至少一个支撑柱922相对的表面上设置有第四凸部53,该第四凸部53与至少一个支撑柱922相对的表面上设置有凹槽531,至少一个支撑柱922均位于该凹槽531中。
在一些可选的实施例中,支撑柱922为两个,两个支撑柱922例如位于设置有支撑柱922的背板侧边92垂直于显示面板2出光面所在平面的对称面所在的中心分区内,该中心分区例如为将背板侧边92的长边平均分成3段、5段或者7段,位于最中间的一段即为上述中心分区。优选地,支撑柱922为两个,且相对于设置支撑柱922的所述背板侧边92的垂直于显示面板2出光面所在平面的对称面对称分布,两个支撑柱922均靠近该对称面设置。具体地,各支撑柱922与中心轴线之间在平行于背板侧边92的长边方向上的间距例如为17mm。
可以理解的是设置支撑柱922的所述背板侧边92相对于所述对称面对称分布,或者大致成对称分布。
通过将支撑柱922设置为两个,可以更有效地避免导光板5发生大幅度旋转,可选的,两个支撑柱922之间的间距不宜过小,以保证有效地避免导光板5发生大幅度旋转;也不宜过大,以避免导光板5在低温收缩时在支撑柱922所在位置处产生变形。两个支撑柱922之间的间距例如大于等于30mm,且小于等于75mm。此外,通过将两个支撑柱922靠近背板侧边92 平行于其短边的中心轴线设置,在显示模组竖屏使用时,可以借助支撑柱922从接近导光板5在竖向上的中间位置支撑导光板5,从而在导光板5从天侧端、地侧端同时向中心收缩时的收缩量一致。在显示模组竖屏使用时如果没有支撑柱922,导光板5在低温条件下收缩时,竖向上所有的收缩量会集中在天侧端,这就需要增加天侧端对应的边框宽度,以保证有足够的空间容纳导光板5天侧端在室温条件下为收缩而预留出的部分,从而造成对应天侧端的边框宽度大于其余边框宽度,对此,通过使导光板5从天侧端、地侧端同时向中心收缩时的收缩量一致,可以避免导光板5天侧端在低温条件下收缩量过大,进而可以避免对应天侧端的边框宽度过大的问题。另外,上述两个支撑柱922与同一凹槽531相配合,这样可以减少凹槽531的数量,降低加工难度,提高加工效率。
在一些可选的实施例中,在实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用的基础上,对于不同尺寸的显示模组,支撑柱922在垂直于显示面板2的出光面所在平面上的厚度与导光板5的厚度存在相关性,例如,支撑柱922在垂直于显示面板2的出光面所在平面上的厚度大于等于导光板5的厚度,支撑柱922在垂直于显示面板2的出光面所在平面上的厚度。
在一些可选的实施例中,支撑柱922在垂直于显示面板2的出光面所在平面方向,且平行于其所在背板侧边91延伸方向上的截面形状为矩形或者正方形,并且该截面形状在垂直于显示面板2的出光面所在平面方向上的高度大于等于导光板5的厚度,例如大于等于2mm,以避免因截面形状在高度方向上过窄而磕伤导光板5;截面形状在平行于显示面板2的出光面所在平面方向上的宽度大于等于1.5mm,以避免因截面形状在宽度方向上过小而导致支撑强度不足。在一个具体的实施例中,如图8所示,支撑柱922的上述截面形状例如为正方形,边长例如为3mm,自背板侧边92凸出的尺寸例如为 3mm,支撑柱922与导光板5平行于其短边的轴线(即,图5中的轴线O2)之间的间距为7mm。
在一些可选的实施例中,如图9所示,第四凸部53位于右侧的支撑柱922的部分与第三凸部51连为一体,该一体式结构既可以对第一凸部41起到限位作用,以防止第一凸部41从导光板5与中框3之间的间隙中跳脱,又可以对导光板5起到支撑作用,以在实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用的基础上,保证显示效果。
在一些可选的实施例中,如图9和图10所示,支撑柱922与凹槽531在垂直于位于侧入式背光源8对侧的背板侧边92(即,支撑柱922所在的背板侧边92)的方向上彼此相对的两个表面之间具有第三预留膨胀间距D3。该第三预留膨胀间距D3大于等于导光板5在凹槽531处在显示模组最高工作温度(例如为60℃或者80℃)的条件下的膨胀量。另外,在保证该第三预留膨胀间距D3足够大的基础上,支撑柱922自背板侧边92凸出的尺寸不宜过大,以避免导光板5在凹槽531处的边界进入显示区成画面边缘亮线、暗影等显示不良。
在一个具体实施例中,上述第三预留膨胀间距D3大于等于1.8mm;导光板5在凹槽531处与背板侧边92之间的间距大于等于4.8mm;支撑柱922与凹槽531在平行于支撑柱922所在的背板侧边92的方向上彼此相对的两个表面之间的间距大于等于0.2mm;支撑柱922与第四凸部53在垂直于位于支撑柱922所在的背板侧边92的方向上的搭接量(即,交叠部分)大于等于1.5mm;第四凸部53与支撑柱922所在的背板侧边92之间的间距大于等于1.3mm。
在一些可选的实施例中,如图10所示,支撑柱922与光学膜层4在平行于显示面板2的出光面所在平面的方向上部分重叠,即,光学膜层4与支撑柱922彼此靠近的表面存在重叠部分,该重叠部分在垂直于支撑柱922所 在的背板侧边92的方向上的长度为D10。通过使支撑柱922与光学膜层4在平行于显示面板2的出光面所在平面的方向上部分重叠,支撑柱922可以对光学膜层4起到支撑作用,避免光学膜层4在高温条件下因软化而发生塌陷,而且在高温条件下膨胀时可能会被支撑柱922铲起,造成画面不良。
在一些可选的实施例中,,如图10所示,支撑柱922与光学膜层4在垂直于显示面板2的出光面所在平面的方向上相互间隔,即,图10中的间隔D4。通过设置该间隔D4,可以在支撑柱922与光学膜层4之间预留出一定的组装间隙,保证二者顺利安装,并且防止二者之间产生相互作用力而造成不良。
在一些可选的实施例中,如图11至图13所示,位于侧入式背光源8对侧的背板侧边92与导光板5相对的表面上设置有至少一个弹性支撑件(例如图1中示出的第一弹性支撑件6b),用于对导光板5进行限位。对于超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上),其在竖屏使用时,如果没有设置上述弹性支撑件,导光板5会有朝支撑柱922所在一侧偏移的风险,导致导光板5与侧入式背光源8之间的间隙变大,从而造成LED入光效率降低甚至漏光,从而影响显示效果,为此,通过在支撑柱922所在一侧增设至少一个弹性支撑件对导光板5进行弹性支撑,可以确保在竖屏使用时,导光板5不会朝支撑柱922所在一侧偏移,从而可以保持导光板5与侧入式背光源8之间的间隙的稳定性,保证显示效果。另外,在横屏使用时,导光板5可以在其自身重力的作用下保持导光板5与侧入式背光源8之间的间隙的稳定性。
可选的,如图1所示,至少一个弹性支撑件包括两个第一弹性支撑件6b,其中,如图12所示,第二弹性支撑件6a位于第一弹性支撑件6b之间且第二弹性支撑件6a与导光板5之间具有间隙;如图13所示,两个第一弹性支撑件6b分别位于靠近导光板5的长边的边缘位置,且处于压缩状态。通过使两 个第一弹性支撑件6b处于压缩状态,可以始终向导光板5的长边靠近其两端的边缘位置施加一个弹力,在靠近导光板5两端的边缘位置处施加该弹力可以在竖屏使用时,避免导光板5以靠近中间位置的支撑柱922为支点旋转,从而进一步保持导光板5与侧入式背光源8之间的间隙的稳定性。具体地,两个第一弹性支撑件6b与导光板5之间过盈配合,例如两个第一弹性支撑件6b在压缩量达到0.6mm时与导光板5之间零间隙装配。
优选地,至少一个弹性支撑件包括至少一个第二弹性支撑件6a。第二弹性支撑件6a起到对导光板5限位的保护作用以在显示模组,尤其是超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)进行组装、运输等可能会产生振动的过程中;同时,也可以防止导光板5向设置第二弹性支撑件6a一侧弹跳等情况,导致对侧LED灯条82与导光板5的距离过大,灯与导光板间隙更大,造成显示不良。具体地,第二弹性支撑件6a位于两个第一弹性支撑件6b之间。优选地,第二弹性支撑件6a位于靠近导光板5的长边的中间位置,以有效防止导光板5的弹跳。
在一些实施例中,第二弹性支撑件6a可以不与导光板5接触对弹跳起到预防作用。在一些实施例中,第二弹性支撑件6a与导光板5接触但不产生相互作用力。在一些实施例中,第二弹性支撑件6a受到导光板5的挤压形变,第二弹性支撑件6a的形变量小于第一弹性支撑件6a的形变量。
可选的,如图12所示,可选的,第二弹性支撑件6a的数量为1个,上述第二弹性支撑件6a可以位于凹槽531中,这样既可以使上述第二弹性支撑件6a起到防止导光板5向设置第二弹性支撑件6a一侧弹跳的作用,同时也可以防止支撑柱922对导光板造成冲击。
在一些可选的实施例中,如图14和图15所示,侧入式背光源8包括第一印制电路板81和设置在该第一印制电路板81上的LED灯条82;第一印制电路板81与导光板5相对的表面上至少一个承压件83(例如图14中示出 的第二承压件83a和图15中示出的第一承压件83b),用于支撑导光板5,且使其与LED灯条82保持一定的间距。在一些可选的实施例中,承压件83也可以设置在设侧入式背光源8的背板侧边上。
在一些可选的实施例中,如图11、图14和图15所示,LED灯条82例如为多个,且沿导光板5的长边方向依次排列,可以对应每个LED灯条82设置有至少一个承压件83,对应每个LED灯条82设置的承压件83的数量可以根据LED灯条82的长度而设定,优选的,对应每个LED灯条82设置有多个承压件83,这样,可以分散所承受的导光板5膨胀或者收缩施加的刮擦力,降低被导光板5刮掉的风险。例如,对应每个LED灯条82设置有7个承压件83(图14和图15中仅示出了一部分数量的承压件83)。
在一些可选的实施例中,上述第一弹性支撑件6b与导光板5相对的表面的摩擦系数小于或等于1,并且优选的,尽量减小,从而可以避免在导光板5在高温条件下可能会因反搓起上述弹性支撑件而导致导光板向上述承压件施加的刮擦力过大,进而降低承压件被导光板5刮掉的风险。
在一些可选的实施例中,上述第一弹性支撑件6b与导光板5相对的表面上设置有保护层(图中未示出),该保护层用于降低第一弹性支撑件6b的摩擦系数。通过借助该保护层降低弹性支撑件的摩擦系数,可以降低弹性支撑件与导光板5之间的摩擦力。例如,上述弹性支撑件主体部分例如可以采用橡胶制成,上述保护层可以是涤纶树脂(Polyethylene terephthalate,又称聚对苯二甲酸乙二醇酯)胶带,可以对弹性支撑件的表面采用硫化工艺,以将上述保护层贴附在弹性支撑件上。上述弹性支撑件主体部分与导光板5之间的摩擦系数为4,在贴附有上述保护层之后,摩擦系数可以减小至0.5,摩擦系数减小87.5%,从而可以有效避免在导光板5在高温条件下可能会因反搓起。
在一些可选的实施例中,如图7所示,导光板5除入光面之外的至少一 个侧面覆盖有反射层52,用于将照射到导光板5除入光面之外的至少一个侧面上的光线反射回导光板5内部,从而可以保证画面无亮暗不均问题。反射层52可以采用具有镜面反射的材料制成,例如银色反射片或者银色反射胶带。
在一些可选的实施例中,如图16所示,显示模组还包括至少一个第二印制电路板22,该第二印制电路板22例如为4个,并且每个第二印制电路板22通过三个排线(例如COF,覆晶薄膜)21与显示面板2电连接,用于为显示面板2传递显示信号;可选的,第二印制电路板22可以为多个,多个第二印制电路板22中有至少一对第二印制电路板22之间通过柔性电路板(FPC)23电连接,如图17所示,以第二印制电路板22为4个为例,4个第二印制电路板22沿平行于背板主体91的长边方向依次排列,其中,图17中最左侧的第二印制电路板22和与之相邻的第二印制电路板22通过柔性电路板电连接,同样的,最右侧的第二印制电路板22和与之相邻的第二印制电路板22通过柔性电路板23电连接;并且,位于中间的相邻两个第二印制电路板22均通过柔性扁平线缆(Flexible Flat Cable,FFC)27与时序控制器28电连接。而且,柔性电路板23可活动地固定于背板主体91背离背光组件一侧,这样可以保证柔性电路板23有一定的自由度相对于背板主体91活动,从而可以在竖屏使用时,实现与第二印制电路板22和排线21一起位移,保证显示效果,进而可以实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用。
并且,如图17至图20所示,在每个第二印制电路板22与背板主体91背离背光组件一侧的表面之间设置有至少一个弹性安装件,用于将第二印制电路板22限位于背板主体91背离背光组件一侧的表面,具体地,如图19所示,上述弹性安装件包括位于背板主体91以及第二印制电路板22之间的弹性安装件主体部24,以及与该弹性安装件主体部24连接的两个限位弯折 部241,两个限位弯折部241的主要部分沿远离背板主体91方向延伸;两个限位弯折部241远离弹性安装件主体部24的一端分别设置有相互对设的限位弯折件242,弹性安装件主体部24、两个限位弯折部241以及两个限位弯折件242对第二印制电路板22半包围地设置,以对第二印制电路板22限位。由于上述弹性安装件能够产生一定的弹性变形,这样可以在将第二印制电路板22装入由弹性安装件主体部24、两个限位弯折部241以及两个限位弯折件242半包围的空间时,可以通过产生弹性变形来使得两个限位弯折件242之间的开口增大,从而使得第二印制电路板22能够顺利从该开口进入上述半包围的空间中,从而实现第二印制电路板22的装卸。同时,借助上述弹性安装件,可以利用其弹性特性保证显示模组在竖向使用时允许第二印制电路板22在重力作用下朝地侧下沉一定距离,从而可以实现第二印制电路板22和排线21能够随显示面板2一起位移,这与采用螺钉或者其他刚性安装方式相比,可以避免在显示面板2出现下沉时,因第二印制电路板22固定不动而对排线21产生拉扯而产生漏光,进而可以实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用。
在一些可选的实施例中,如图20所示,每个限位弯折部241在垂直于第二印制电路板22的延伸方向上与第二印制电路板22之间具有第一间隙D8;每个限位弯折件242在垂直于显示面板2的出光面所在平面的方向上与第二印制电路板22之间具有第二间隙D9。第一间隙D8例如为0.15mm;第二间隙D9例如为0.2mm。通过设置上述第一间隙D8和第二间隙D9,既便于第二印制电路板22的组装,又可以降低弹性安装件的加工精度,从而可以降低加工成本。
在一个具体的实施例中,如图18所示,对应每个第二印制电路板22设置有两个弹性安装件,每个弹性安装件均位于相邻的两个排线21之间,两个弹性安装件之间的间距为259mm,但是本公开实施例并不局限于此,在实际 应用中,该间距可以根据第二印制电路板22的长度以及排线21的数量和分布而设定,例如,间距大于等于第二印制电路板22的长度的二分之一。第二印制电路板22对于每个弹性安装件,弹性安装件主体部24在平行于第二印制电路板22的长度方向上的宽度例如大于等于8mm,例如为10mm;弹性安装件主体部24在垂直于显示面板2的出光面所在平面的方向上的厚度为1.5mm(包含将弹性安装件主体部24与背板主体91粘接在一起的背胶厚度,例如为0.1mm),第二印制电路板22在组装后,其靠近背板主体1的长边的侧边与边框侧边12的与中框侧边34相对的表面之间的间距大于等于4.4mm,该间距和弹性安装件主体部24的上述厚度的设计可以确保排线21在低温条件下也有足够的弯折空间,从而可以保证在低温条件下的显示效果。
在一些可选的实施例中,如图18所示,第二印制电路板22上靠近背板主体91的一侧包括至少一个接地区,该接地区与背板主体91背离背光组件一侧的表面之间设置有导电柔性部件26,用于将上述接地区与背板主体91电导通,该导电柔性部件26与接地区及背板主体91分别粘贴连接。该背板主体91具有接地端(例如位于其中一短边),借助导电柔性部件26,可以实现第二印制电路板22通过背板主体91接地。导电柔性部件26例如为导电泡棉,其数量与第二印制电路板22上的导电区(例如:露铜区)的数量相同,且一一对应地设置。借助导电柔性部件26在第二印制电路板22与背板主体91之间分别与二者弹性接触,可以确保第二印制电路板22与背板主体91始终保持有效、良好接地,从而可以提高显示模组的电气特性的可靠性;同时,上述导电柔性部件26还可以在竖屏使用时,允许第二印制电路板22相对于背板主体91产生少量相对位移,从而可以保证在竖屏使用时,第二印制电路板22与背板主体91也能够保持有效、良好接地。
在一个具体的实施例中,如图18所示,对应每个第二印制电路板22设置有两个导电柔性部件26,其例如位于第二印制电路板22的远离背板主体 21的长边的两个边角处的接地区,每个导电柔性部件26例如为正方形,边长为5mm;导电柔性部件26在垂直于显示面板2的出光面所在平面的方向上的厚度为2mm,其所能达到的最大压缩比(最大压缩量与原始厚度的百分比)例如为50%,但是,本公开实施例并不局限于此,在实际应用中,这些尺寸均可以根据导电柔性部件26的厚度、接地区的面积进行调整。
在一些可选的实施例中,如图18和图21所示,背板主体91背离背光组件一侧的表面上,且与柔性电路板23对应的位置处设置有固定胶带25,该固定胶带25包括无胶部251、第一有胶部252和两个第二有胶部253,其中,至少一部分柔性电路板23位于背板主体91与无胶部251之间;第一有胶部252和两个第二有胶部253分别位于无胶部251的三边,并与无胶部251连为一体;两个第二有胶部253分别位于无胶部251的两边;例如,第一有胶部252粘贴在背板主体91背离背光组件一侧的表面;第一有胶部252与柔性电路板23之间设有第一避让间隙D6;例如,两个第二有胶部253粘贴在背板主体91背离背光组件一侧的表面;每个第二有胶部253与柔性电路板23之间设有第二避让间隙D7。例如,背板主体91在平行于显示面板2出光面所在平面上的正投影为矩形,第二印制电路板22为条形,其沿背板主体91的矩形长边方向延伸,并且上述第一有胶部252位于无胶部251远离背板主体91的矩形长边一侧,且沿平行于背板主体91的矩形长边方向延伸,且与柔性电路板23之间在垂直于背板主体91的矩形长边方向上设有上述第一避让间隙D6;两个第二有胶部253在平行于背板主体91的矩形长边方向上相对设置在柔性电路板23两侧,且各第二有胶部253与柔性电路板23在平行于背板主体91的矩形长边方向上设有上述第二避让间隙D7。上述第一避让间隙D6和第二避让间隙D7例如均为5mm。
借助上述固定胶带25对柔性电路板23进行保护,既可以保证柔性电路板23避免其被刮擦损伤,又通过上述第一避让间隙D6和第二避让间隙D7, 保证柔性电路板23在平行于背板主体91所在平面的二维平面内均有足够的自由度,即,实现了柔性电路板23可活动地固定于背板主体91背离背光组件一侧,从而可以在竖屏使用时,实现与第二印制电路板22和排线21一起位移,保证显示效果,进而可以实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用。
在一些可选的实施例中,上述第二避让间隙D7大于等于在竖屏使用时,显示面板2的下沉位移量与背板9在显示模组最低工作温度(例如-20℃或者-30℃)条件下的收缩量之和,以确保柔性电路板23在低温条件下有足够的移动空间。上述第一避让间隙D6大于等于背板9在显示模组最低工作温度(例如-20℃或者-30℃)条件下在平行于其短边方向上的收缩量。
在一些可选的实施例中,如图21所示,背板主体91与显示面板2出光面平行的面轮廓为矩形;第二印刷电路板22为条形且沿着该矩形的长边延伸;其中,背板主体91背离背光组件一侧的表面,且位于第二印制电路板22远离背板主体91的长边一侧设置有朝向靠近显示面板2方向凹进的加强筋911,该加强筋911沿平行于背板主体91的长边方向延伸,用于增强背板9的强度,避免其产生弯曲变形。在此基础上,柔性电路板23在背板主体91上的正投影的一部分可以位于加强筋911的凹进部分中,且该部分柔性电路板23位于背板主体91与无胶部251之间;第一有胶部252粘贴在凹进部分的底面上,两个第二有胶部253的至少部分也位于加强筋911的凹进部分中,且粘贴在凹进部分的侧面和/或底面上;在背板主体91上的正投影的一部分可以位于加强筋911的凹进部分中的部分柔性电路板23可以被无胶部251压入凹进部分中,以实现对柔性电路板23的覆盖和固定。
在一个具体的实施例中,无胶部251与柔性电路板23的搭接区域的长×宽等于125mm×15mm,固定胶带25的长×宽等于155mm×30mm。第一有胶部252和两个第二有胶部253各自的宽度均大于等于8mm,以保证与背 板主体91具有足够的贴合强度。
在另一些可选的实施例中,如图22所示,上述无胶部251横跨在加强筋911的凹进部分上,而未设置在加强筋911的凹进部分中;第一有胶部252位于加强筋911的凹进部分远离背板主体91的长边一侧;两个第二有胶部253位于加强筋911的凹进部分靠近背板主体91的长边一侧。第一有胶部252和两个第二有胶部253在背板主体91上的正投影均未设置在加强筋911的凹进部分中。由于上述无胶部251只是横跨在加强筋911的凹进部分上,这样可以在保护柔性电路板23的基础上,使柔性电路板23的活动空间更大,从而使柔性电路板23不受任何外力而产生折弯,始终处于舒展状态,从而不仅可以避免其在组装、搬运过程中被刮擦损伤,而且还可以确保第二印制电路板22有更多的位移自由度,从而图22示出的柔性电路板23的固定方案更适用于超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用,尤其在显示模组最低工作温度(例如-20℃或者-30℃)条件下,由于柔性电路板23和固定胶带25的硬度相对于室温(例如25℃)增大,固定胶带25对柔性电路板23的限制会增大,导致柔性电路板23不能随第二印制电路板22和排线21一起位移,从而影响显示效果,而图22示出的柔性电路板23的固定方案通过确保第二印制电路板22有更多的位移自由度,可以很好地解决该问题。
在一个具体的实施例中,如图22所示,固定胶带25的长×宽等于177mm×52mm;无胶部251与柔性电路板23的搭接区域的长×宽等于125mm×20mm,第一有胶部252和两个第二有胶部253各自的宽度均大于等于8mm,以保证与背板主体91具有足够的贴合强度。
在一些可选的实施例中,固定胶带25包括无胶部251,并且可以只包括第一有胶部252,或者,固定胶带25包括无胶部251,并且只包括两个第二有胶部253,只要实现对柔性电路板23的限位即可。
在一些可选的实施例中,本公开实施例提供的显示模组适用于超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上,例如2m),例如,显示面板2的显示区的对角线尺寸大于等于47.1英寸,显示面板2的显示区的长宽比大于等于3.2,具体地,例如,显示面板2的显示区的对角线尺寸等于48英寸,显示面板2的显示区的长宽比等于3.2;例如,显示面板2的显示区的对角线尺寸等于47.1英寸,显示面板2的显示区的长宽比等于24。
作为另一个技术方案,本公开实施例还提供一种显示装置,其包括本公开实施例提供的上述显示模组,该显示模组为条形显示模组,即,显示区的长宽比大于1,例如显示面板2的显示区的长宽比大于等于16:5。
本公开实施例还提供的显示装置,其通过采用本公开实施例提供的上述显示模组,可以在实现超长尺寸的显示屏(尤其是条形屏,其长度例如在600mm以上)兼容横屏、竖屏使用的基础上,保证光学膜层不会出现错位,同时满足窄边框需求。
本公开实施例提供的显示装置,例如可以应用于公交、地铁等智能交通领域,例如可以应用于地铁屏蔽门显示及半户外站牌显示,以方便乘客观看地铁站点等信息,提升乘客乘车体验。此外,还可以应用于地铁、公交等的广告投放显示。
可以解的是,以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式,然而本发明并不局限于此。对于本领域内的普通技术人员而言,在不脱离本发明的精神和实质的情况下,可以做出各种变型和改进,这些变型和改进也视为本发明的保护范围。

Claims (23)

  1. 一种显示模组,其特征在于,包括显示面板、位于背离所述显示面板的出光面一侧的背光组件,其中,所述背光组件包括光源组件以及光学膜层,所述光源组件发出的光经过所述光学膜层进入所述显示面板;
    所述光学膜层的至少一长边和至少一短边上均设置有沿垂直于所述显示面板出光面所在平面的方向贯通所述光学膜层的通槽;
    所述显示模组还包括中框,所述中框包括环绕所述背光组件设置的中框主体以及位于所述显示面板与所述光学膜层之间的第一延伸部;所述中框还包括与所述通槽相对的表面上设置的第二凸部,所述第二凸部对应设置于所述通槽中。
  2. 根据权利要求1所述的显示模组,其特征在于,所述光学膜层的长边上的所述通槽为多个,且所述光学膜层的长边上的所有所述通槽中,最中间的一个所述通槽偏离所述光学膜层平行于其短边的、垂直于所述显示面板出光面所在平面的对称面设置;其余的所述通槽相对于所述光学膜层平行于其短边的、垂直于所述显示面板出光面所在平面的对称面对称分布;
    所述光学膜层的短边上的所述通槽为多个,且相对于所述光学膜层平行于其长边的、垂直于所述显示面板出光面所在平面的对称面对称分布。
  3. 根据权利要求1所述的显示模组,其特征在于,所述光学膜层的至少一长边和至少一短边上均设置有第一凸部,所述第一凸部沿与所述光学膜层入光面所在平面平行的方向朝向所述光学膜层边缘以外延伸;所述通槽在所述第一凸部朝向所述光学膜层边缘以外延伸的最远端背离所述最远端的位置设置。
  4. 根据权利要求3所述的显示模组,其特征在于,所述光学膜层的长 边上的相邻两个所述第一凸部之间具有第一间距,最靠近所述光学膜层的短边的所述第一凸部与所述光学膜层的短边之间具有第二间距;
    所述第一间距大于等于160mm,且小于等于300mm;所述第二间距大于等于50mm,且小于等于150mm。
  5. 根据权利要求3所述的显示模组,其特征在于,所述光学膜层的短边上的相邻两个所述第一凸部之间具有第三间距,最靠近所述光学膜层的长边的所述第一凸部与所述光学膜层的长边之间具有第四间距;
    所述第三间距大于等于50mm,且小于等于150mm;所述第四间距大于等于30mm,且小于等于70mm。
  6. 根据权利要求3所述的显示模组,其特征在于,所述光源组件还包括位于所述光学膜层背离所述显示面板一侧,且沿远离所述光学膜层的方向依次设置的导光板和反射片;所述光源组件还包括与所述导光板相对设置的侧入式背光源;
    所述导光板对应所述光学膜层的长边和/或短边上的所述第一凸部的位置设置有第三凸部,所述第三凸部在平行于所述出光面所在平面上的正投影与所述第一凸部在平行于所述出光面所在平面上的正投影部分重叠。
  7. 根据权利要求6所述的显示模组,其特征在于,所述第三凸部在所述显示面板出光面所在平面上的正投影覆盖所述通槽在所述显示面板出光面所在平面上的正投影的面积大于或等于所述通槽在所述出光面所在平面上的正投影的面积的二分之一。
  8. 根据权利要求6所述的显示模组,其特征在于,在所述导光板延伸方向上,所述第三凸部和与之相对的部件之间设有第一预留膨胀间距;在所述导光板延伸方向上,所述导光板的侧边除所述第三凸部之外的其余部分和 与之相对的部件之间设有第二预留膨胀间距。
  9. 根据权利要求7所述的显示模组,其特征在于,所述显示模组还包括背板,所述背板包括位于所述背光组件背离所述显示面板一侧的背板主体,和环绕所述背光组件设置的背板侧边;
    所述中框还包括中框侧边和止反挡墙,所述中框侧边和止反挡墙在垂直于所述显示面板出光面的方向上位于所述背板主体靠近所述显示面板一侧;在平行于所述显示面板出光面的方向上,所述止反挡墙位于所述背板侧边靠近所述光学膜层的一侧,所述背板侧边位于所述中框侧边与所述止反挡墙之间;
    所述止反挡墙与所述导光板的侧边除所述第三凸部之外的其余部分之间的间距即包括所述第二预留膨胀间距;
    所述止反挡墙与所述导光板相对的表面上对应所述第三凸部的位置处设置有避让通槽,所述背板侧边在所述避让通槽处与所述第三凸部之间的间距包括所述第一预留膨胀间距。
  10. 根据权利要求1所述的显示模组,其特征在于,所述光源组件还包括位于所述光学膜层背离所述显示面板一侧,且沿远离所述光学膜层的方向依次设置的导光板和反射片;所述光源组件还包括与所述导光板相对设置的侧入式背光源;
    所述通槽仅设置在所述光学膜层的一长边和一短边上;
    所述光学膜层与所述侧入式背光源对应的另一长边不设置所述通槽;
    所述显示面板的显示区轮廓为矩形。
  11. 根据权利要求1所述的显示模组,其特征在于,所述显示模组还包括背板,所述背板包括位于所述背光组件背离所述显示面板一侧的背板主体,和环绕所述背光组件设置的背板侧边,所述光源组件还包括位于所述光 学膜层背离所述显示面板一侧,且沿远离所述光学膜层的方向依次设置的导光板和反射片;所述光源组件还包括与所述导光板相对设置的侧入式背光源;其中,
    位于所述侧入式背光源对侧的所述背板侧边与所述导光板相对的表面上设置有至少一个支撑柱;所述支撑柱朝向所述导光板延伸,所述导光板包括对应所述支撑柱设置的的凹槽,所述支撑柱延伸至所述凹槽中;
    所述导光板在所述支撑柱一侧的表面包括平行于所述导光板所在平面延伸的第四凸部,所述凹槽设置于所述第四凸部上。
  12. 根据权利要求11所述的显示模组,其特征在于,所述支撑柱为两个,且相对于设置支撑柱的所述背板侧边的垂直于所述显示面板出光面所在平面的对称面对称分布。
  13. 根据权利要求11所述的显示模组,其特征在于,所述支撑柱与所述光学膜层在平行于所述显示面板的出光面所在平面的方向上部分重叠;所述支撑柱与所述光学膜层在垂直于所述显示面板的出光面所在平面的方向上相互间隔。
  14. 根据权利要求11所述的显示模组,其特征在于,位于所述侧入式背光源对侧的所述背板侧边与所述导光板相对的表面上设置有至少一个弹性支撑件,用于支撑所述导光板;
    所述侧入式背光源包括第一印制电路板和设置在所述第一印制电路板上的LED灯条;所述第一印制电路板与所述导光板相对的表面上至少一个承压件,用于支撑所述导光板。
  15. 根据权利要求14所述的显示模组,其特征在于,所述至少一个弹性支撑件包括两个第一弹性支撑件和一个第二弹性支撑件,其中,所述两个 第一弹性支撑件处于压缩状态,所述第二弹性支撑件与所述导光板之间存在间隙;
    所述两个第二弹性支撑件分别位于靠近所述导光板的长边的两个边缘位置;所述第一弹性支撑件位于所述两个第一弹性支撑件之间。
  16. 根据权利要求15所述的显示模组,其特征在于,所述第一弹性支撑件与所述导光板相对的表面上包括保护层,所述保护层用于降低所述第一弹性支撑件主材料的摩擦系数。
  17. 根据权利要求1所述的显示模组,其特征在于,所述显示模组还包括背板,所述背板包括位于所述背光组件背离所述显示面板一侧的背板主体,所述显示模组还包括至少一个第二印制电路板,所述第二印制电路板通过排线与所述显示面板电连接,用于为所述显示面板传递显示信号,其中,
    在所述第二印制电路板与所述背板主体背离所述背光组件一侧的表面之间设置有至少一个弹性安装件,用于将所述第二印制电路板限位于所述背板主体背离所述背光组件一侧的表面;
    所述弹性安装件包括位于所述背板主体以及所述第二印制电路板之间的弹性安装件主体部,以及与所述弹性安装件主体部连接的两个限位弯折部,所述两个限位弯折部的主要部分沿远离所述背板主体方向延伸;所述两个限位弯折部远离弹性安装件主体部的一端分别设置有相互对设的限位弯折件,所述弹性安装件主体部、所述两个限位弯折部以及两个所述限位弯折件对所述第二印刷电路板半包围地设置,以对所述第二印刷板限位。
  18. 根据权利要求17所述的显示模组,其特征在于,每个所述限位弯折部在垂直于所述第二印制电路板的延伸方向上与所述第二印制电路板之间具有第一间隙;每个所述限位弯折部在垂直于所述出光面所在平面的方向上与所述第二印制电路板之间具有第二间隙;
    所述第二印制电路板靠近所述背板主体的一侧包括至少一个接地区,所述接地区与所述背板主体背离所述背光组件一侧的表面之间设置有导电柔性部件,用于将所述接地区与所述背板主体电导通;
    所述导电柔性部件与所述接地区及所述背板主体分别粘贴连接。
  19. 根据权利要求17所述的显示模组,其特征在于,所述第二印制电路板的数量为多个,其中,至少一对所述第二印制电路板之间通过柔性电路板电连接,所述柔性电路板可活动地固定于所述背板主体背离所述背光组件一侧。
  20. 根据权利要求19所述的显示模组,其特征在于,所述背板主体背离所述背光组件一侧的表面上,且与所述柔性电路板对应的位置处设置有固定胶带,所述固定胶带包括无胶部、第一有胶部和两个第二有胶部,其中,
    至少一部分所述柔性电路板位于所述背板主体与所述无胶部之间;
    所述第一有胶部和两个第二有胶部分别位于所述无胶部的三边,并与所述无胶部连为一体;所述两个第二有胶部分别位于所述无胶部的两边;
    所述第一有胶部与所述柔性电路板之间包括第一避让间隙,所述第二有胶部与所述柔性电路板之间包括第二避让间隙。
  21. 根据权利要求20所述的显示模组,其特征在于,所述背板主体与所述显示面板出光面平行的面轮廓为矩形;所述第二印制电路板为条形且沿着所述矩形的长边延伸;其中,
    所述背板主体背离所述背光组件一侧的表面,且位于所述第二印制电路板远离所述背板主体的长边一侧设置有朝向靠近所述显示面板方向凹进的加强筋,所述加强筋沿平行于所述背板主体的长边方向延伸;所述柔性电路板在所述背板主体上的正投影的一部分位于所述加强筋凹进部分中;
    至少一部分所述柔性电路板位于所述背板主体与所述无胶部之间;
    所述第一有胶部位于所述加强筋的凹进部分远离所述背板主体的长边一侧;两个所述第二有胶部位于所述加强筋的凹进部分靠近所述背板主体的长边一侧。
  22. 根据权利要求1所述的显示模组,其特征在于,所述显示面板的显示区的对角线尺寸大于等于47.1英寸;所述显示面板的显示区的长宽比大于等于3.2。
  23. 一种显示装置,其特征在于,包括权利要求1-22任意一项所述的显示模组,所述显示模组为条形显示模组。
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010036079A (ko) * 1999-10-05 2001-05-07 윤종용 백라이트 어셈블리
CN1598668A (zh) * 2000-12-25 2005-03-23 株式会社日立制作所 液晶显示装置
CN201149633Y (zh) * 2007-12-17 2008-11-12 中华映管股份有限公司 背光模组以及液晶显示装置
CN102859424A (zh) * 2010-02-21 2013-01-02 Lg电子株式会社 背光单元和包括该背光单元的液晶显示器
CN202835045U (zh) * 2012-09-20 2013-03-27 创维液晶器件(深圳)有限公司 侧光式背光模组
CN105223711A (zh) * 2014-07-18 2016-01-06 惠科电子(深圳)有限公司 液晶显示组件及其pcb板的固定方法
CN113589585A (zh) * 2020-04-30 2021-11-02 深圳市万普拉斯科技有限公司 背光模组与液晶显示器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20010036079A (ko) * 1999-10-05 2001-05-07 윤종용 백라이트 어셈블리
CN1598668A (zh) * 2000-12-25 2005-03-23 株式会社日立制作所 液晶显示装置
CN201149633Y (zh) * 2007-12-17 2008-11-12 中华映管股份有限公司 背光模组以及液晶显示装置
CN102859424A (zh) * 2010-02-21 2013-01-02 Lg电子株式会社 背光单元和包括该背光单元的液晶显示器
CN202835045U (zh) * 2012-09-20 2013-03-27 创维液晶器件(深圳)有限公司 侧光式背光模组
CN105223711A (zh) * 2014-07-18 2016-01-06 惠科电子(深圳)有限公司 液晶显示组件及其pcb板的固定方法
CN113589585A (zh) * 2020-04-30 2021-11-02 深圳市万普拉斯科技有限公司 背光模组与液晶显示器

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