WO2023206362A1 - 背光模组、显示模组及显示装置 - Google Patents

背光模组、显示模组及显示装置 Download PDF

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Publication number
WO2023206362A1
WO2023206362A1 PCT/CN2022/090275 CN2022090275W WO2023206362A1 WO 2023206362 A1 WO2023206362 A1 WO 2023206362A1 CN 2022090275 W CN2022090275 W CN 2022090275W WO 2023206362 A1 WO2023206362 A1 WO 2023206362A1
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WO
WIPO (PCT)
Prior art keywords
middle frame
limiting
backlight assembly
backlight
backplane
Prior art date
Application number
PCT/CN2022/090275
Other languages
English (en)
French (fr)
Inventor
陶冉
许海峰
吴小君
施晓春
Original Assignee
京东方科技集团股份有限公司
合肥鑫晟光电科技有限公司
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, 合肥鑫晟光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to PCT/CN2022/090275 priority Critical patent/WO2023206362A1/zh
Priority to CN202280000974.2A priority patent/CN117321491A/zh
Publication of WO2023206362A1 publication Critical patent/WO2023206362A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices

Definitions

  • the present disclosure relates to the field of display technology, and specifically, to a backlight module, a display module and a display device.
  • die-casting parts are generally used in vehicles or other scenarios that require high strength of display devices.
  • the advantages of die-casting parts are high strength and the ability to form more complex external structures through die-casting.
  • the backplane in existing display devices generally uses die-casting parts, and the middle frame is fixed to the backplane through double-sided tape.
  • the stickiness of the double-sided tape will weaken or even fail, resulting in poor connection stability between the middle frame and the backplane, and the middle frame is required to have a certain thickness and width, otherwise it will occur. deformation, which is not conducive to meeting the requirements for narrow borders and thinness.
  • the present disclosure aims to solve at least one of the technical problems existing in the prior art, and proposes a backlight module, a display module and a display device, which can ensure the reliability of the middle frame and backplane under vibration environment and high temperature conditions.
  • the connection stability is better, and it is easier to meet the requirements of narrow bezel and thin profile.
  • an embodiment of the present disclosure provides a backlight module, including a backlight assembly, a backplane and a middle frame.
  • the backplane is a die-casting part and includes a backplane located on the side away from the light exit surface of the backlight assembly.
  • the middle frame includes a middle frame main body, and the middle frame main body is located on the side of the backplane close to the backlight assembly;
  • the middle frame also includes a first middle frame side connected to the middle frame main body and located on the side of the backplate close to the backlight assembly.
  • the first middle frame side and the corresponding A first latching portion is provided on the surface of the side of the back plate opposite to the side of the first middle frame.
  • a second latching portion is provided on the surface of the side of the back plate opposite to the side of the first middle frame. The first latching portion
  • the connecting part is engaged with the second engaging part.
  • the first engaging portion is a first engaging protrusion provided on the surface of the side of the first middle frame opposite to the side of the back panel; the second engaging portion is provided on The engaging recess is formed on the surface of the side of the back plate opposite to the side of the first middle frame.
  • the middle frame further includes a second middle frame side connected to the middle frame main body and located on the non-light source side of the backlight assembly, and the rest of the backlight assembly except the non-light source side At least one of the sides is provided with the first middle frame side;
  • the side of the second middle frame is located on the side of the corresponding side of the back panel away from the backlight assembly, and a surface of the side of the second middle frame opposite to the side of the back panel is provided with A third latching part.
  • a fourth latching part is provided on the surface of the side of the back panel opposite to the side of the second middle frame. The third latching part is latched with the fourth latching part. .
  • the third engaging portion is a through groove provided on the side of the second middle frame; the fourth engaging portion is provided on the side of the back panel and the second middle frame. A second engaging protrusion on the opposite side surface.
  • an escape recess is provided on the side of the back plate corresponding to the side of the second middle frame, and the middle frame body is connected to the side of the second middle frame through the escape recess.
  • a first limiting structure is provided on the side of the first middle frame
  • a second limiting structure is provided on the side of the back panel corresponding to the side of the first middle frame
  • the third limiting structure is provided on the side of the first middle frame.
  • a limiting structure cooperates with the second limiting structure and is used to limit the relative position of the side of the first middle frame and the side of the back panel.
  • the side of the backplane and the light exit surface of the backlight assembly face the same surface as the first surface
  • the first limiting structure includes a bending portion that is bent toward the side of the back panel relative to the side of the first middle frame.
  • the bending portion is stacked on the first surface and is connected with the first surface.
  • the first clamping parts are staggered from each other in the extending direction of the side of the first middle frame; a through hole is provided on the bending part;
  • the second limiting structure includes a third limiting protrusion disposed on the first surface, and the third limiting protrusion is located in the through hole.
  • the width of the third limiting protrusion in a second direction is greater than or equal to 0.4 mm, and the second direction is parallel to the light exit surface of the backlight assembly and perpendicular to the third limiting protrusion.
  • the second limiting structure further includes a limiting groove provided on the first surface, and the third limiting protrusion is provided on the bottom surface of the limiting groove;
  • the bending portion is located in the limiting groove, and the orthographic projection shape of the limiting groove on a plane parallel to the light exit surface of the backlight assembly is the same as the shape of the bending portion parallel to the backlight.
  • the orthographic projection shape on the plane of the light-emitting surface of the component is the same.
  • the side of the backplane and the light exit surface of the backlight assembly face the same surface as the first surface
  • the first limiting structure includes a bending portion that is bent toward the side of the back panel relative to the side of the first middle frame.
  • the bending portion is stacked on the first surface and is connected with the first surface.
  • the first clamping parts are staggered from each other in the extension direction of the side of the first middle frame; two sides of the bending part in the extension direction of the side of the first middle frame are respectively provided. extension;
  • the second limiting structure includes a first limiting groove provided on the first surface and two two sides respectively located on both sides of the first limiting groove in the extending direction of the side of the back plate. second limiting grooves, each of the second limiting grooves is connected with the first limiting groove; the bent portion is located in the first limiting groove, and the two extending are respectively located in the two second limiting grooves.
  • a support boss is provided on a side surface of the backplane close to the backlight assembly for supporting the middle frame body.
  • an embodiment of the present disclosure also provides a display module, including a display panel, which is characterized in that it further includes the above-mentioned backlight module provided by an embodiment of the present disclosure.
  • the display module also includes a cover plate and structural glue, wherein:
  • the surface of the side of the backplate corresponding to the side of the first middle frame that is opposite to the cover is a first surface.
  • a first limiting protrusion is provided on the first surface, and the cover is located on The light-emitting surface side of the backlight assembly overlaps with the first limiting convex portion;
  • the structural glue is disposed between the first surface and the surface of the cover plate opposite to the first surface, and the structural glue is located on the side of the first limiting protrusion away from the first middle frame. side of the edge.
  • the number of each of the first engaging parts and the second engaging parts is the same as the number of the first limiting protrusions, and they are arranged correspondingly.
  • the snap-in recess has a first mating surface facing away from the first surface, the first snap-in protrusion has a second mating surface, and the second mating surface matches the first mating surface.
  • the distance is greater than or equal to 0.7mm.
  • the width of the overlapping area between the second mating surface and the first mating surface in the first direction is greater than or equal to 0.4 mm and less than or equal to 0.5 mm, and the first direction is parallel to the The light-emitting surface of the backlight assembly is perpendicular to the extending direction of the side of the backplane where the first limiting protrusion is located.
  • the center distance between two adjacent first limiting protrusions is greater than or equal to 35 mm and less than or equal to 50 mm.
  • the width of the first limiting protrusion in a first direction is greater than or equal to 0.6 mm, and the first direction is parallel to the light exit surface of the backlight assembly and perpendicular to the first limiting protrusion.
  • the middle frame further includes a second middle frame side connected to the middle frame main body and located on the non-light source side of the backlight assembly, and the rest of the backlight assembly except the non-light source side At least one of the sides is provided with the first middle frame side; the second middle frame side is located on the corresponding side of the backplane away from the backlight assembly, and is on the second side.
  • a third clamping portion is provided on the surface of the side of the middle frame opposite to the side of the back plate, and a fourth clamping portion is provided on the surface of the side of the back plate opposite to the side of the second middle frame. The third clamping part is clamped with the fourth clamping part;
  • the surface of the side of the backplate corresponding to the side of the second middle frame that is opposite to the cover is a second surface, and a second limiting protrusion is provided on the second surface; the cover is located
  • the light-emitting surface side of the backlight assembly overlaps with the second limiting protrusion; the second limiting protrusion and the fourth engaging portion extend in the direction of the side of the backplate. staggered from each other;
  • the structural glue is disposed between the second surface and the surface of the cover plate opposite to the second surface, and mutually interacts with the second limiting protrusion in the extending direction of the side of the back plate. stagger.
  • an embodiment of the present disclosure further provides a display device, which includes a display panel and the above-mentioned backlight module provided by an embodiment of the present disclosure.
  • Figure 1 is a partial cross-sectional view of an existing display module
  • Figure 2 is an exploded structural view of the display module provided by the first embodiment of the present disclosure
  • Figure 3 is a partial cross-sectional view of the display module provided by the first embodiment of the present disclosure
  • Figure 4 is a front view of a display module provided by a second embodiment of the present disclosure.
  • Figure 5 is a cross-sectional view along line I-I in Figure 4.
  • Figure 6 is a partial perspective view of the side of the first middle frame at the first engaging convex portion used in the second embodiment of the present disclosure
  • Figure 7 is a partial perspective view of the side of the backplate corresponding to the side of the first middle frame at the snap-in recess used in the second embodiment of the present disclosure
  • Figure 8 is a cross-sectional view along line II-II in Figure 4.
  • Figure 9 is a cross-sectional view along line O1-O1 in Figure 4.
  • Figure 10 is a partial perspective view of the side of the second middle frame at the through slot used in the second embodiment of the present disclosure
  • Figure 11 is a partial perspective view of the side of the backplate corresponding to the side of the second middle frame at the second latching protrusion used in the second embodiment of the present disclosure
  • Figure 12 is a cross-sectional view along line O2-O2 in Figure 4.
  • Figure 13 is a cross-sectional view along line P1-P1 in Figure 4;
  • Figure 14 is a partial perspective view of the side of the first middle frame at the bending portion used in the second embodiment of the present disclosure
  • Figure 15 is a partial perspective view of the side of the backplate corresponding to the side of the first middle frame at the third limiting convex portion used in the second embodiment of the present disclosure
  • Figure 16 is a partially exploded view of the side of the first middle frame and the side of the backplane used in the second embodiment of the present disclosure
  • Figure 17 is a partial cross-sectional view of a display module provided by a modified embodiment of the second embodiment of the present disclosure.
  • FIG. 18 is a diagram showing the cooperation relationship between the side edges of the first middle frame and the side edges of the back panel at the bending portion used in a modified embodiment of the second embodiment of the present disclosure.
  • An existing display module includes a display panel 11 and a backlight module disposed on the side of the display panel 11 away from its light-emitting surface.
  • the backlight module includes a backlight assembly 14 , a backplane 12 , and a middle frame. 13 and cover 15.
  • the back plate 12 is a die-casting part, that is, the back plate 12 is made by die-casting. It has higher strength than a stamped back plate and can form a more complex external structure, thereby making the backlight
  • the module can be used in vehicles or other scenarios that require high intensity backlight modules.
  • the sides of the back panel 12 and the bent portion of the middle frame 13 are fixed by double-sided tape 16 .
  • This fixing method has the following disadvantages, namely: reliability in a vibration environment and high temperature. , the stickiness of the double-sided tape will weaken or even fail, resulting in poor stability of the connection between the middle frame and the backplane, and the middle frame is required to have a certain width, otherwise it will shrink and deform, which is not conducive to meeting the requirements for narrow borders and thinness. .
  • a first embodiment of the present disclosure provides a display module, which includes a display panel 4 and a backlight module located on the side of the light exit surface away from the backlight assembly 6 .
  • the display module also includes a cover 2 , which is light-transmissive and is located on the side of the light exit surface of the backlight assembly 6 for protecting the display panel 4 .
  • the cover plate 2 can be bonded and fixed to the display panel 4 through optical glue 3 , for example.
  • the display panel 4 is electrically connected to the circuit board (not shown in the figure) through two cables 8 .
  • a glue 9 may be disposed between the cover plate 2 and the side edge of the back plate for bonding the cover plate 2 and the side edge of the back plate together.
  • the colloid 9 is, for example, solid double-sided tape.
  • the first embodiment of the present disclosure also provides a backlight module.
  • the backlight module includes a backlight assembly 6 , a backplane 7 and a middle frame 5 .
  • the backlight assembly 6 includes but is not limited to: an optical film layer 61 , a light guide plate 62 and a reflective sheet 63 that are sequentially arranged in a direction away from the display panel 4 ; in addition, as shown in FIG. 2 , the backlight assembly 6 6 may also include an edge-type backlight 64 disposed opposite to the light guide plate 62 .
  • the relative arrangement here may refer to the relative arrangement between the side-type backlight 64 and the light incident surface of the light guide plate 62 that is perpendicular to the plane where the light exit surface of the backlight assembly 6 is located.
  • the optical film layer 61 may, for example, play a role in uniforming light.
  • the optical film layer 61 may include, 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.
  • an upper diffusion film can also be added. membrane or other functional membrane materials.
  • the backlight assembly 6 may also use a back-in type light source, and there is no particular limitation on this in the embodiments of the present disclosure.
  • the outline of the light exit surface of the backlight assembly 6 is a rectangle, or approximately a rectangle;
  • the orthographic projection of the outer contour of the display module on the plane where the light exit surface of the display panel 4 is located may be a rectangle, or approximately a rectangle;
  • the outer contour of the middle frame 5 , the outer contour of the back plate 7 and the outer contours of the optical film layer 61 , the light guide plate 62 and the reflective sheet 63 can all be rectangular or substantially rectangular in the orthographic projection of the plane where the light emitting surface of the display panel 4 is located.
  • the rectangle may also include a rounded rectangle, that is, at least one of the four corners of the rectangle is rounded.
  • the back plate 7 is a die-casting part, that is, the back plate 7 is made by die-casting. It has higher strength than the back plate made by stamping, and can form a more complex external structure, thereby making the backlight module It can be used in vehicles or other scenarios that require high intensity of backlight modules.
  • the back panel 7 includes a back panel main body 71 located on the side away from the light exit surface of the backlight assembly 6 (ie, the reflective sheet 63 ) and back panel sides arranged around the back light assembly 6 .
  • the so-called light-emitting surface of the backlight assembly 6 refers to the surface of the backlight assembly 6 that faces the display panel 4 .
  • the light-emitting surface of the backlight assembly 6 and the light-emitting surface of the display panel 4 are parallel to each other.
  • the backplane there are four sides of the backplane, one of which is the side of the backplane (described in detail later) and the non-light source side of the backlight assembly 6 (that is, located on the side).
  • the side opposite to the in-type backlight source 64 is located), and the other three backplane sides are the backplane sides 72a, which correspond to the other three sides of the backlight assembly 6 except for the light source side.
  • a support boss 722 is also provided on any one of the four sides of the backplane and close to the surface of the backlight assembly 6 for supporting the middle frame body 51 .
  • the width of the support boss 722 in a first direction is greater than or equal to 1 mm.
  • the first direction is parallel to the light exit surface of the backlight assembly 6 and perpendicular to the extension direction of the side of the backplane where the support boss 722 is located.
  • the middle frame 5 includes a middle frame main body 51 , which is located on the side of the backplane close to the backlight assembly 6 , and a part of the middle frame main body 51 is located between the non-display area of the display panel 4 and the backlight assembly 6 and the non-display area.
  • the opposite areas are used to support the display panel 4 and limit the position of the optical film layer 61 to prevent the edge of the optical film layer 61 from deforming and lifting, thereby ensuring the display effect.
  • a buffer gasket 21 can also be provided between the middle frame body 51 and the display panel 4 to buffer the display panel 4 and protect the display panel 4 , the buffer gasket 21 is, for example, foam, which can be bonded to the middle frame body 51 .
  • the middle frame 5 also includes a first middle frame side 52a, which is connected to the middle frame main body 51 and is located on the side of the back panel side 72a close to the display panel 4. It should be noted that, taking the light-emitting surface outline of the backlight assembly 6 as a rectangle as an example, optionally, there are three first middle frame sides 52a, and they respectively correspond to the remaining three sides of the display panel 4 except the non-light source side.
  • a first clamping portion is provided on the surface of the first middle frame side 52a and the corresponding back panel side 72a. Two latching parts, the first latching part and the second latching part are latching.
  • the above-mentioned first locking portion is a first locking protrusion 521 provided on the surface of the first middle frame side 52a opposite to the back panel side 72a;
  • the above-mentioned second engaging portion is a engaging recessed portion 721 provided on the surface of the back panel side 72a opposite to the first middle frame side 52a.
  • the first engaging protruding portion 521 is located in the engaging recessed portion 721 and is connected with the engaging recessed portion 721.
  • the latching recess 721 is latched, thereby achieving the fixation of the middle frame 5 and the back panel 7 .
  • the first engaging protrusion 521 is, for example, hook-shaped.
  • the embodiments of the present disclosure are not limited to using the first latching protrusion and the latching recess to realize the latching between the side edge 72a of the back panel and the side edge 52a of the first middle frame.
  • it is also possible to use Other arbitrary snap-in structures are not particularly limited in the embodiments of the present disclosure.
  • a plurality of first snap-in portions may be provided on the first middle frame side 52a, and the plurality of first snap-in portions are spaced apart along the extension direction of the first middle frame side 52a.
  • the number of the second latching parts is the same as the number of the first latching parts, and they are correspondingly latched.
  • the maximum thickness H of the first locking protrusion 521 in a direction perpendicular to the light exit surface of the backlight assembly 6 is greater than or equal to 0.9 mm and less than or equal to 1.4 mm.
  • the difference between the opening size of the clamping recess 721 in the direction perpendicular to the light exit surface of the backlight assembly 6 and the maximum thickness H of the first clamping convex part 521 is greater than or equal to 0.4 mm and less than or equal to 0.4 mm. 0.9mm.
  • the backlight module provided by the embodiment of the present disclosure can realize the fixation of the middle frame 5 and the back panel 7 through the first clamping part and the second clamping part. Compared with the existing technology, the backlight module can ensure the connection. On the basis of stability, there is no need to use double-sided tape, so even in a vibration environment and high temperature reliability conditions, the connection stability of the middle frame 5 and the back plate 7 can still be ensured. In addition, eliminating the need for double-sided tape can also save costs. In addition, due to the high connection stability through the first snap-in part and the second snap-in part, the deformation of the back plate 7 can be reduced to a certain extent, so that the thickness of the middle frame 5 can be appropriately reduced. and width to meet narrow bezel and thin profile requirements.
  • the display module provided by the embodiment of the present disclosure by using the above-mentioned backlight module provided by the embodiment of the present disclosure, can ensure the stability of the connection without using double-sided tape, thereby ensuring reliability even in a vibration environment and high temperature. Under these conditions, the connection stability between the middle frame 5 and the back panel 7 can still be ensured.
  • the backlight module provided in this embodiment is a further improvement based on the above-mentioned first embodiment. Specifically, as shown in FIG. 4 , taking the outline of the light exit surface of the backlight assembly 6 as a rectangle as an example, optionally, there are four sides of the backplane, one of which is the lower side of the backplane in FIG.
  • the backplane side 72b which corresponds to the non-light source side of the backlight assembly 6 (that is, the side where the cable 8 of the display panel 4 is located), and the other three backplane sides (located on the upper side, The left and right back panel sides) are the back panel sides 72a, which correspond to the remaining three sides of the display panel 4 except the non-light source side.
  • the second embodiment of the present disclosure also provides a display module, which, compared with the above-mentioned first embodiment, uses structural glue 9' instead of the colloid 9 in the above-mentioned first embodiment.
  • structural glue 9' instead of the colloid 9 in the above-mentioned first embodiment.
  • the structural adhesive 9' is in a liquid state before curing and has better bonding effect than solid double-sided adhesive tape.
  • the display module provided by the above-mentioned first and second embodiments can use any one of the colloid 9 and the structural glue 9'.
  • the surface of the back plate side 72a corresponding to the first middle frame side 52a and the cover plate 2 is the first surface (that is, the surface with the back plate side 72a facing upward in FIG. 5), and on the first surface A first limiting protrusion 723 is provided, and the cover plate 2 is located on the side of the light exit surface of the backlight assembly 6 and overlaps with the first limiting protrusion 723; structural glue 9' is provided on the above-mentioned first surface and the cover plate 2 Between the surfaces opposite to the above-mentioned first surface, the structural glue 9' is located on the side of the first limiting protrusion 723 away from the first middle frame side 52a.
  • structural glue 9' is continuously arranged along the extending direction of the back plate side edge 72a.
  • the structural glue 9' is located on the first limiting protrusion 723. outside (that is, the side away from the first middle frame side 52a) to avoid the first limiting protrusion 723;
  • Figure 8 shows the position of the structural glue 9' except for the first limiting protrusion 723. Sectional view.
  • the above-mentioned second engaging portion (ie, engaging recessed portion 721 ) can be provided at a position corresponding to the first limiting protrusion 723 , such as the first limiting portion 723 .
  • the orthographic projections of the convex portion 723 and the second engaging portion on a plane parallel to the light-emitting surface of the backlight assembly 6 at least partially overlap. Since the distance between the first limiting protrusion 723 and the opposite surface of the cover plate 2 and the engaging recess 721 is greater than the distance between the first surface and the engaging recess 721 , that is, the space between the back plate side 72 a and the engaging recess 721 increases.
  • the thickness of the recessed portion 721 can increase the strength at this location to meet the strength requirements for the engagement between the engaging recessed portion 721 and the first engaging protruding portion 521 and ensure connection stability.
  • the strength requirements for the engagement between the engagement recess 721 and the first engagement protrusion 521 can be met without increasing the overall thickness of the back plate 7, thereby saving money on the backlight module. overall thickness.
  • the snap-in recess 721 has a first mating surface facing away from the above-mentioned first surface
  • the first snap-in protrusion 521 has a second mating surface opposite to the first mating surface.
  • the second mating surface cooperates with the first mating surface to realize the engaging of the engaging concave portion 721 and the first engaging protruding portion 521 .
  • the distance L is set to control the thickness of the structural glue 9 ′ and ensure that the cover plate 2 and the back surface are in contact with each other.
  • the plate side 72a is well bonded, and the strength at this position can be improved to meet the strength requirements for the engagement between the engaging recessed portion 721 and the first engaging protruding portion 521.
  • the distance L is greater than or equal to 0.7mm.
  • first limiting protrusions 723 there may be a plurality of first limiting protrusions 723 , and the plurality of first limiting protrusions 723 may be spaced apart along the extension direction of the back plate side 72 a to support the cover plate 2 at intervals.
  • the respective numbers of the above-mentioned first latching parts and the second latching parts are the same as the number of the first limiting protrusions 723 and are provided correspondingly.
  • two first limiting protrusions 723 are provided on each side edge 72a of the back plate.
  • the width J in the first direction of the overlapping area between the second mating surface and the first mating surface is greater than or equal to 0.4mm and less than or equal to 0.5mm
  • the above-mentioned first direction is parallel to the light exit surface of the backlight assembly 6 and perpendicular to the extending direction of the backplate side 72a where the first limiting protrusion 723 is located.
  • the center distance W between two adjacent first limiting protrusions 723 (applicable to whether the back plate side 72a is a long side or a short side) Greater than or equal to 35mm, and less than or equal to 50mm.
  • the width K of the first limiting protrusion 723 in the first direction is greater than or equal to 0.6 mm.
  • the above-mentioned first direction is parallel to the light exit surface of the backlight assembly 6 and vertical. In the extending direction of the side edge 72a of the back plate where the first limiting protrusion 723 is located.
  • the diagonal size of the display area of the display panel 4 can be greater than or equal to 12 inches, and less than or equal to 12 inches. 20 inches.
  • the above-mentioned middle frame 5 also includes a second middle frame side 52b.
  • the second middle frame side 52b is connected to the middle frame body 51 and located at The side where the cable 8 of the display panel 4 is located.
  • the first middle frame side 52a can also be any other number, and can be located on the other sides of the backlight assembly 6 except the light source side. Any one of them, and the second middle frame side 52b is located on the non-light source side of the backlight assembly 6, that is, the side where the cable 8 of the display panel 4 is located.
  • the backplate side corresponding to the non-light source side of the backlight assembly 6 is the backplate side 72b.
  • the second middle frame side 52 b is located on the side away from the backlight assembly 6 (that is, located outside the back plate side 72 b ) of the corresponding back plate side 72 b, and is on the side of the second middle frame side 52 b.
  • a third engaging portion is provided on the surface opposite to the side edge 72b of the back panel.
  • a fourth engaging portion is provided on the surface of the side edge 72b of the back panel facing the side edge 52b of the second middle frame. The third engaging portion is connected to The fourth snap-in portion snaps together to achieve fixation of the middle frame 5 and the back panel 7 .
  • the third engaging portion is a through slot 522 provided on the side 52b of the second middle frame; the fourth engaging portion is provided on the side of the back panel. 72b on the surface opposite to the second middle frame side 52b.
  • the second engaging protrusion 724 is, for example, hook-shaped.
  • the embodiment of the present disclosure is not limited to using the second locking protrusion 724 and the through groove 522 to realize the locking between the back panel side 72b and the second middle frame side 52b. In practical applications, it can also be used. Any other snap-in structure may be used, and the embodiments of the present disclosure have no special limitations on this.
  • a plurality of third snap-in portions may be provided on the second middle frame side 52b, and the plurality of third snap-in portions are spaced apart along the extension direction of the second middle frame side 52b.
  • the number of the fourth latching parts is the same as the number of the third latching parts, and they are correspondingly latched.
  • the third clamping portion and the fourth clamping portion are located on the side (that is, the inside) of the cable 8 close to the side edge 72b of the backplane.
  • an escape recess 720 is provided on the back panel side 72b corresponding to the second middle frame side 52b, through which the middle frame main body 51 passes.
  • the recess 720 is connected to the second middle frame side 52b.
  • the surface of the backplate side 72b corresponding to the second middle frame side 52b and the cover plate 2 is the second surface (ie, the surface in Figure 9
  • the second surface with the side 72b of the backplate facing upward) is provided with a second limiting protrusion 725;
  • the cover plate 2 is located on the side of the light emitting surface of the backlight assembly 6, and is mutually connected with the second limiting protrusion 725.
  • Overlapping; the second limiting convex portion 725 and the above-mentioned fourth latching portion (ie, the second latching convex portion 724 ) are staggered from each other in the extending direction of the back plate side 72 b to avoid the cable 8 .
  • the function of the above-mentioned second limiting protrusion 725 is the same as the function of the above-mentioned first limiting protrusion 723, which will not be described again here.
  • the structural adhesive 9' is disposed between the second surface of the back plate side 72b and the surface of the cover 2 opposite to the second surface, and is in contact with the second limiting protrusion 725 in the extending direction of the back plate side 72b. staggered from each other. In this way, the width of the second limiting protrusion 725 in the first direction can be increased, for example, it can be the same as the width of the back plate side 72b in the first direction.
  • the above-mentioned first direction is parallel to the light exit surface of the backlight assembly 6 and perpendicular to the extending direction of the backplate side 72b where the second limiting protrusion 725 is located.
  • the backlight module provided by the embodiment of the present disclosure can further realize the fixation of the middle frame 5 and the back panel 7 through the third snap-in part and the fourth snap-in part, thereby ensuring the stability of the connection. There is no need to use double-sided tape, so even in a vibration environment and high temperature reliability conditions, the connection stability between the middle frame 5 and the backplane 7 can still be ensured.
  • the middle frame 5 Due to the structural characteristics of the middle frame 5, it will undergo a certain amount of deformation after being manufactured. The amount of deformation has a certain relationship with the size of the middle frame 5. That is, the larger the size of the middle frame 5, the greater the amount of deformation. Since The middle frame 5 will be completely deformed toward the display area, causing the distance M (as shown in Figure 5) between the middle frame 5 and the display panel 4 to become smaller, causing interference. Although the interference can be avoided by increasing the distance M, This cannot meet the requirements for narrow bezels and thin profiles.
  • a first limiting structure is provided on the side 52a of the first middle frame
  • a second limiting structure is provided on the back panel side 72b corresponding to the first middle frame side 52a.
  • the first limiting structure cooperates with the second limiting structure to limit the distance between the first middle frame side 52a and the back panel.
  • the side edge 72 a of the back plate faces the same surface as the light exit surface of the backlight assembly 6 (that is, the surface with the side edge 72 a of the back plate facing upward in FIG. 13 ) is the first surface.
  • the above-mentioned first limiting structure includes a bending portion 523 that is bent toward the side 72a of the back panel relative to the first middle frame side 52a, and the bending portion 523 is overlapped with the above-mentioned first surface, and are staggered with the first engaging portion in the extending direction of the first middle frame side 52a to avoid each other; a through hole 524 is provided on the bending portion 523; as shown in Figure 15, the above-mentioned second The limiting structure includes a third limiting protrusion 727 disposed on the first surface, and the third limiting protrusion 727 is located in the through hole 524 .
  • the middle frame 5 plays the role of "pulling outwards", which can eliminate the deformation of the middle frame 5 after assembly (the deformation of the middle frame 5 is usually bending and deforming toward the display panel), thereby preventing the middle frame 5 from interfacing with the display panel.
  • the distance M between 4 (as shown in Figure 5) becomes smaller and causes interference. At the same time, there is no need to increase the distance M, which can meet the requirements of narrow borders and thinness.
  • the long-side frame size A of the display module is greater than or equal to 9mm
  • the short-side frame size B is greater than or equal to 4.5mm, which meets the narrow frame requirements.
  • the width P of the third limiting protrusion 727 in the second direction is greater than or equal to 0.4 mm.
  • the second direction is parallel to the light exit surface of the backlight assembly 6 and perpendicular to the light exit surface of the backlight assembly 6 .
  • the width P is set within the above numerical range, it is possible to ensure that the third limiting protrusion 727 has sufficient strength to "hook" the bending portion 523 and to avoid manufacturing difficulties caused by too narrow width.
  • the center distance V between two adjacent bent portions 523 is greater than or equal to 40 mm and less than or equal to 60 mm.
  • the bending portion 523 and the first engaging portion are staggered from each other in the extending direction of the first middle frame side 52a, and the center between the bending portion 523 and the adjacent first engaging portion is The distance U (applicable to whether the first middle frame side 52a is the long side or the short side) is greater than or equal to 30 mm and less than or equal to 50 mm.
  • the second limiting structure further includes a limiting groove 726 provided on the first surface of the back plate side 72a.
  • the third limiting structure The convex portion 727 is provided on the bottom surface of the limiting groove 726; and, as shown in FIG. 6, the bent portion 523 is located in the limiting groove 726, and the limiting groove 726 is parallel to the light exit surface of the backlight assembly 6.
  • the orthographic projection shape on the plane is the same as the orthographic projection shape of the bending portion 523 on a plane parallel to the light exit surface of the backlight assembly 6 .
  • the above-mentioned first limiting structure and the second limiting structure may be disposed correspondingly on any one of the remaining three sides except the non-light source side of the backlight module 6 .
  • the first limiting structure and the second limiting structure are not provided on the non-light source side of the backlight module 6, that is, the side where the wiring 8 of the display panel 4 is located.
  • the embodiments of the present disclosure are not limited to this. In practical applications, if there is enough space on the side corresponding to the non-light source side of the backlight module 6, the above-mentioned first limiting structure and the second limiting structure can also be provided. , the present disclosure has no special restrictions on this.
  • the side edge 72 a of the back plate faces the same surface as the light exit surface of the backlight assembly 6 (that is, the side edge 72 a of the back plate faces upward in FIG. 13 surface) is the first surface;
  • the above-mentioned first limiting structure includes a bending portion 525 that is bent toward the side 72a of the back panel relative to the first middle frame side 52a, and the bending portion 525 is overlapped on the above-mentioned first surface.
  • the second limiting structure includes a first limiting groove 728 provided on the first surface and an extension direction of the first limiting groove 728 on the side edge 72a of the back plate.
  • the extension portions 526 are respectively located in the two second limiting grooves 729.
  • the bending part 525 can also be limited, thereby forming a "hanging ear structure", which can exert orientation on the middle frame 5
  • This effect can eliminate the deformation of the middle frame 5 after assembly (the deformation of the middle frame 5 is usually inward). bending deformation), thereby ensuring smooth assembly, and at the same time reducing the width of the middle frame 5 to meet the requirements of narrow frame and thin profile.
  • the above-mentioned second limiting groove 729 has an opening on the side away from the middle frame 5 and a side wall on the side close to the middle frame 5.
  • the side wall and the extension part 526 are at the third
  • the side edges 52a of a middle frame overlap each other in the extending direction to play a limiting role.
  • the embodiment of the present disclosure is not limited to this.
  • the above-mentioned second limiting groove 729 may also have a side wall on the side away from the middle frame 5 , that is, on the side perpendicular to the side of the first middle frame. In the extending direction of 52a, there are two side walls that limit the extending portion 526 between them, which can also play a limiting role.
  • the backlight module provided by the embodiment of the present disclosure can realize the fixation of the middle frame 5 and the back plate 7 through the first clamping part and the second clamping part. This is compared with the existing technology. , on the basis of ensuring the stability of the connection, there is no need to use double-sided tape, so that even in a vibration environment and high temperature reliability conditions, the connection stability of the middle frame 5 and the backplane 7 can still be ensured. In addition, eliminating the need for double-sided tape can also save costs. In addition, due to the high connection stability through the first snap-in part and the second snap-in part, the deformation of the back plate 7 can be reduced to a certain extent, so that the thickness of the middle frame 5 can be appropriately reduced. and width to meet narrow bezel and thin profile requirements.
  • the display module provided by the embodiment of the present disclosure by using the above-mentioned backlight module provided by the embodiment of the present disclosure, can ensure the stability of the connection without using double-sided tape, thereby ensuring reliability even in a vibration environment and high temperature. Under these conditions, the connection stability between the middle frame 5 and the back panel 7 can still be ensured.
  • an embodiment of the present disclosure further provides a display device, including the above display module provided by an embodiment of the present disclosure.
  • the display device disclosed in the embodiment of the present disclosure can be applied in vehicles or other scenarios that require high strength of the display device.
  • the diagonal size of the display area of the display panel 4 may be greater than or equal to 12 inches and less than or equal to 20 inches.
  • the display device provided by the embodiments of the present disclosure by using the above-mentioned display module provided by the embodiments of the present disclosure, can ensure the stability of the connection without using double-sided tape, thereby ensuring reliability even in vibration environments and high temperature conditions. , the connection stability between the middle frame 5 and the back panel 7 can still be ensured.

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Abstract

本公开提供一种背光模组、显示模组及显示装置，包括背光组件、背板和中框，背板为压铸件，且包括位于背离背光组件的出光面一侧的背板主体和环绕背光组件设置的背板侧边；中框包括中框主体，中框主体位于背板侧边靠近背光组件一侧；还包括与中框主体连接，且位于背板侧边靠近背光组件一侧的第一中框侧边，第一中框侧边和与之对应的背板侧边相对的表面上设置有第一卡接部，背板侧边与第一中框侧边相对的表面上设置有第二卡接部，第一卡接部与第二卡接部卡接。本公开提供的背光模组，可以在振动环境、高温信赖性条件下，保证中框与背板的连接稳定性，同时更容易满足窄边框、薄型化要求。

Description

背光模组、显示模组及显示装置 技术领域
本公开涉及显示技术领域，具体地，涉及一种背光模组、显示模组及显示装置。
背景技术
目前，压铸件普遍被应用于车载或者其他对显示装置强度要求较高的场景，压铸件的优势是强度高，且能够通过压铸成型形成更为复杂的外部结构。
现有的显示装置中的背板一般采用压铸件，中框通过双面胶粘贴固定在背板上。但是，在振动环境、高温信赖性条件下，双面胶的粘性会减弱甚至失效，从而导致中框与背板的连接稳定性变差，而且要求中框具有一定的厚度和宽度，否则会发生变形，从而不利于满足窄边框、薄型化要求。
发明内容
本公开旨在至少解决现有技术中存在的技术问题之一，提出了一种背光模组、显示模组及显示装置，其可以在振动环境、高温信赖性条件下，保证中框与背板的连接稳定性，同时更容易满足窄边框、薄型化要求。
为实现上述目的，本公开实施例提供一种背光模组，包括背光组件、背板和中框，所述背板为压铸件，且包括位于背离所述背光组件的出光面一侧的背板主体和环绕所述背光组件设置的背板侧边；所述中框包括中框主体，所述中框主体位于所述背板侧边靠近所述背光组件一侧；
所述中框还包括与所述中框主体连接，且位于所述背板侧边靠近所述背光组件一侧的第一中框侧边，所述第一中框侧边和与之对应的所述背板侧边相对的表面上设置有第一卡接部，所述背板侧边与所述第一中框侧边相对的 表面上设置有第二卡接部，所述第一卡接部与所述第二卡接部卡接。
可选的，所述第一卡接部为设置在所述第一中框侧边与所述背板侧边相对的表面上的第一卡接凸部；所述第二卡接部为设置在所述背板侧边与所述第一中框侧边相对的表面上的卡接凹部。
可选的，所述中框还包括与所述中框主体连接，且位于所述背光组件的非光源侧的第二中框侧边，所述背光组件除所述非光源侧之外的其余侧中的至少一者设置有所述第一中框侧边；
所述第二中框侧边位于与之对应的所述背板侧边远离所述背光组件一侧，且在所述第二中框侧边与所述背板侧边相对的表面上设置有第三卡接部，所述背板侧边与所述第二中框侧边相对的表面上设置有第四卡接部，所述第三卡接部与所述第四卡接部卡接。
可选的，所述第三卡接部为设置在所述第二中框侧边上的通槽；所述第四卡接部为设置在所述背板侧边与所述第二中框侧边相对的表面上的第二卡接凸部。
可选的，与所述第二中框侧边对应的所述背板侧边上设置有避让凹部，所述中框主体通过所述避让凹部与所述第二中框侧边连接。
可选的，所述第一中框侧边上设置有第一限位结构，与所述第一中框侧边对应的所述背板侧边上设置有第二限位结构，所述第一限位结构和所述第二限位结构相配合，用于限定所述第一中框侧边与所述背板侧边的相对位置。
可选的，所述背板侧边与所述背光组件的出光面朝向相同的表面为第一表面；
所述第一限位结构包括相对于所述第一中框侧边朝靠近所述背板侧边弯折的弯折部，所述弯折部叠置于所述第一表面，且与所述第一卡接部在所述第一中框侧边的延伸方向上相互错开；在所述弯折部上设置有通孔；
所述第二限位结构包括设置于所述第一表面上的第三限位凸部，所述第 三限位凸部位于所述通孔中。
可选的，所述第三限位凸部在第二方向上的宽度大于等于0.4mm，所述第二方向平行于所述背光组件的出光面，且垂直于所述第三限位凸部所在的所述背板侧边的延伸方向。
可选的，所述第二限位结构还包括设置于所述第一表面上的限位凹槽，所述第三限位凸部设置于所述限位凹槽的底面上；
所述弯折部位于所述限位凹槽中，且所述限位凹槽在平行于所述背光组件的出光面的平面上的正投影形状与所述弯折部在平行于所述背光组件的出光面的平面上的正投影形状相同。
可选的，所述背板侧边与所述背光组件的出光面朝向相同的表面为第一表面；
所述第一限位结构包括相对于所述第一中框侧边朝靠近所述背板侧边弯折的弯折部，所述弯折部叠置于所述第一表面，且与所述第一卡接部在所述第一中框侧边的延伸方向上相互错开；在所述弯折部的在所述第一中框侧边的延伸方向上的两侧分别设置有两个延伸部；
所述第二限位结构包括设置于所述第一表面上的第一限位凹槽和分别位于所述第一限位凹槽在所述背板侧边的延伸方向上的两侧的两个第二限位凹槽，各所述第二限位凹槽均与所述第一限位凹槽连通；所述弯折部位于所述第一限位凹槽中，两个所述延伸部分别位于两个所述第二限位凹槽中。
可选的，所述背板侧边靠近所述背光组件的表面上还设置有支撑凸台，用于支撑所述中框主体。
作为另一个技术方案，本公开实施例还提供一种显示模组，包括显示面板，其特征在于，还包括本公开实施例提供的上述背光模组。
可选的，所述显示模组还包括盖板和结构胶，其中，
与所述第一中框侧边对应的所述背板侧边与所述盖板相对的表面为第 一表面，所述第一表面上设置有第一限位凸部，所述盖板位于所述背光组件的出光面一侧，且与所述第一限位凸部相互叠置；
所述结构胶设置于所述第一表面和所述盖板与所述第一表面相对的表面之间，且所述结构胶位于所述第一限位凸部背离所述第一中框侧边的一侧。
可选的，所述第一卡接部和所述第二卡接部各自的数量均与所述第一限位凸部的数量相同，且对应设置。
可选的，所述卡接凹部具有背离所述第一表面的第一配合面，所述第一卡接凸部具有第二配合面，所述第二配合面与所述第一配合面相配合；
所述第一配合面与所述第一限位凸部与所述盖板相对的表面之间具有间距。
可选的，所述间距大于等于0.7mm。
可选的，所述第二配合面与所述第一配合面相交叠的交叠区域在第一方向上的宽度大于等于0.4mm，且小于等于0.5mm，所述第一方向平行于所述背光组件的出光面，且垂直于所述第一限位凸部所在的所述背板侧边的延伸方向。
可选的，相邻两个所述第一限位凸部之间的中心距大于等于35mm，且小于等于50mm。
可选的，所述第一限位凸部在第一方向上的宽度大于等于0.6mm，所述第一方向平行于所述背光组件的出光面，且垂直于所述第一限位凸部所在的所述背板侧边的延伸方向。
可选的，所述中框还包括与所述中框主体连接，且位于所述背光组件的非光源侧的第二中框侧边，所述背光组件除所述非光源侧之外的其余侧中的至少一者设置有所述第一中框侧边；所述第二中框侧边位于与之对应的所述背板侧边远离所述背光组件一侧，且在所述第二中框侧边与所述背板侧边相对的表面上设置有第三卡接部，所述背板侧边与所述第二中框侧边相对的表 面上设置有第四卡接部，所述第三卡接部与所述第四卡接部卡接；
与所述第二中框侧边对应的所述背板侧边与所述盖板相对的表面为第二表面，所述第二表面上设置有第二限位凸部；所述盖板位于所述背光组件的出光面一侧，且与所述第二限位凸部相互叠置；所述第二限位凸部与所述第四卡接部在所述背板侧边的延伸方向上相互错开；
所述结构胶设置于所述第二表面和所述盖板与所述第二表面相对的表面之间，且与所述第二限位凸部在所述背板侧边的延伸方向上相互错开。
作为另一个技术方案，本公开实施例还提供一种显示装置，包括显示面板，还包括本公开实施例提供的上述背光模组。
附图说明
图1为现有的一种显示模组的局部剖视图；
图2为本公开第一实施例提供的显示模组的结构分解图；
图3为本公开第一实施例提供的显示模组的局部剖视图；
图4为本公开第二实施例提供的显示模组的正视图；
图5为沿图4中I-I线的剖视图；
图6为本公开第二实施例采用的第一中框侧边在第一卡接凸部处的局部立体图；
图7为本公开第二实施例采用的与第一中框侧边对应的背板侧边在卡接凹部处的局部立体图；
图8为沿图4中II-II线的剖视图；
图9为沿图4中O1-O1线的剖视图；
图10为本公开第二实施例采用的第二中框侧边在通槽处的局部立体图；
图11为本公开第二实施例采用的与第二中框侧边对应的背板侧边在第二卡接凸部处的局部立体图；
图12为沿图4中O2-O2线的剖视图；
图13为沿图4中P1-P1线的剖视图；
图14为本公开第二实施例采用的第一中框侧边在弯折部处的局部立体图；
图15为本公开第二实施例采用的与第一中框侧边对应的背板侧边在第三限位凸部处的局部立体图；
图16为本公开第二实施例采用的第一中框侧边与背板侧边的局部分解图；
图17为本公开第二实施例的一个变形实施例提供的显示模组的局部剖视图；
图18为本公开第二实施例的一个变形实施例采用的第一中框侧边和背板侧边在弯折部处的配合关系图。
具体实施方式
为了使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开作进一步地详细描述，显然，所描述的实施例仅是本公开的部分实施例，而不是全部的实施例。基于本公开中的实施例，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，都属于本公开保护的范围。
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，现有的一种显示模组包括显示面板11、设置在该显示面板11背离其出光面一侧的背光模组，该背光模组包括背光组件14、背板12、中框13和盖板15。其中，背板12为压铸件，即，背板12采用压铸成型的方式制成，其相对于冲压制成的背板具有更高的强度，且能够形成更为复杂的外部结构，从而使背光模组可以应用在车载或者其他对背光模组强度要求较高的场景。
但是，如图1所示，背板12的侧边与中框13上的弯折部通过双面胶16粘贴固定，这种固定方式存在以下缺陷，即：在振动环境、高温信赖性条件下，双面胶的粘性会减弱甚至失效，从而导致中框与背板的连接稳定性变差，而且要求中框具有一定的宽度，否则会发生收缩变形，从而不利于满足窄边框、薄型化要求。
第一实施例
为了解决上述问题，请一并参阅图2和图3，本公开第一实施例提供一种显示模组，其包括显示面板4和位于背离背光组件6的出光面一侧的背光模组。可选的，显示模组还包括盖板2，其具有透光性，且位于背光组件6的出光面所在一侧，用于保护显示面板4。盖板2例如可以通过光学胶3与显示面板4粘接固定。另外，显示面板4通过两个排线8与电路板(图中未示出)电路连接。在一些可选的实施例中，如图3所示，在盖板2与背板侧边之间还可以设置有胶体9，用于将盖板2与背板侧边粘接在一起。胶体9 例如为固态的双面胶。
本公开第一实施例还提供一种背光模组。如图2所示，该背光模组包括背光组件6、背板7和中框5。在一些可选的实施例中，背光组件6包括但不限于：沿远离显示面板4的方向依次设置的光学膜层61、导光板62和反射片63；另外，如图2所示，背光组件6还可以包括与导光板62相对设置的侧入式背光源64。这里的相对设置，可以指侧入式背光源64与导光板62的垂直于背光组件6的出光面所在平面的入光面相对设置。在实际应用中，光学膜层61例如可以起到匀光的作用。光学膜层61例如可以包括下扩散膜、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。另外，背光组件6还可以采用背入式光源，本公开实施例对此没有特别的限制。
具体地，背光组件6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4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5的外轮廓、背板7的外轮廓以及光学膜层61、导光板62和反射片63的外轮廓在显示面板4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。
背板7为压铸件，即，背板7采用压铸成型的方式制成，其相对于冲压制成的背板具有更高的强度，且能够形成更为复杂的外部结构，从而使背光模组可以应用在车载或者其他对背光模组强度要求较高的场景。
如图3所示，背板7包括位于背离背光组件6(即，反射片63)的出光面一侧的背板主体71和环绕背光组件6设置的背板侧边。所谓背光组件6的出光面，是指背光组件6与显示面板4相对的表面，该背光组件6的出光面与显示面板4的出光面相互平行。以背光组件6的出光面轮廓为矩形为例，可选的，背板侧边有四个，其中一个背板侧边(在后文中详细描述)与背光 组件6的非光源侧(即位于侧入式背光源64的对侧)所在一侧对应，其余三各背板侧边为背板侧边72a，与背光组件6除非光源侧之外的其余三侧对应。可选的，四个背板侧边中的任意一者，且靠近上述背光组件6的表面上还设置有支撑凸台722，用于支撑中框主体51。该支撑凸台722在第一方向上的宽度大于等于1mm，上述第一方向平行于背光组件6的出光面，且垂直于支撑凸台722所在的背板侧边的延伸方向。
中框5包括中框主体51，该中框主体51位于背板侧边靠近背光组件6一侧，且中框主体51的一部分位于显示面板4的非显示区与背光组件6与该非显示区相对的区域之间，用于对显示面板4进行支撑，并且对光学膜层61进行限位，以防止光学膜层61的边缘变形翘起，进而保证显示效果。
在一些可选的实施例中，如图3所示，在中框主体51与显示面板4之间还可以设置缓冲垫片21，用以对显示面板4起到缓冲作用，以保护显示面板4，该缓冲垫片21例如为泡棉，其可以与中框主体51粘接在一起。
中框5还包括第一中框侧边52a，该第一中框侧边52a与中框主体51连接，且位于背板侧边72a靠近显示面板4一侧。需要说明的是，以背光组件6的出光面轮廓为矩形为例，可选的，第一中框侧边52a为三个，且分别与显示面板4除非光源侧之外的其余三侧对应。上述第一中框侧边52a和与之对应的背板侧边72a相对的表面上设置有第一卡接部，背板侧边72a与第一中框侧边52a相对的表面上设置有第二卡接部，该第一卡接部与第二卡接部卡接。在一些可选的实施例中，如图3所示，上述第一卡接部为设置在第一中框侧边52a与背板侧边72a相对的表面上的第一卡接凸部521；上述第二卡接部为设置在背板侧边72a与第一中框侧边52a相对的表面上的卡接凹部721，该第一卡接凸部521位于卡接凹部721中，且与该卡接凹部721卡接，从而实现中框5与背板7的固定。第一卡接凸部521例如呈卡钩状。
需要说明的是，本公开实施例并不局限于采用第一卡接凸部和卡接凹部 来实现背板侧边72a与第一中框侧边52a卡接，在实际应用中，还可以采用其他任意卡接结构，本公开实施例对此没有特别的限制。
在一些可选的实施例中，第一中框侧边52a上可以设置多个第一卡接部，且多个第一卡接部沿第一中框侧边52a的延伸方向间隔分布。第二卡接部的数量与第一卡接部的数量相同，且对应卡接。
在一些可选的实施例中，如图5所示，第一卡接凸部521在垂直于背光组件6的出光面的方向上的最大厚度H大于等于0.9mm，且小于等于1.4mm。可选的，为了便于组装，卡接凹部721在垂直于背光组件6的出光面的方向上的开口尺寸与第一卡接凸部521的最大厚度H的差值大于等于0.4mm，且小于等于0.9mm。
本公开实施例提供的背光模组，其通过第一卡接部与第二卡接部卡接，可以实现中框5与背板7的固定，这与现有技术相比，可以在保证连接稳定性的基础上，无需再使用双面胶，从而即使在振动环境、高温信赖性条件下，仍然能够保证中框5与背板7的连接稳定性。此外，省去了双面胶还可以节约成本。另外，由于通过第一卡接部与第二卡接部卡接具有较高的连接稳定性，这可以在一定程度上减小背板7产生的变形，从而可以适当减小中框5的厚度和宽度，以满足窄边框、薄型化要求。
本公开实施例提供的显示模组，其通过采用本公开实施例提供的上述背光模组，可以在保证连接稳定性的基础上，无需再使用双面胶，从而即使在振动环境、高温信赖性条件下，仍然能够保证中框5与背板7的连接稳定性。
第二实施例
请一并参阅图4至图7，本实施例提供的背光模组，其是在上述第一实施例的基础上所做的进一步改进。具体地，如图4所示，以背光组件6的出光面轮廓为矩形为例，可选的，背板侧边有四个，其中一个背板侧边(图8中位于下侧的背板侧边)为背板侧边72b，其与背光组件6的非光源侧(即， 显示面板4的排线8所在一侧)对应，其余三各背板侧边(图8中位于上侧、左侧和右侧的背板侧边)为背板侧边72a，与显示面板4除非光源侧之外的其余三侧对应。
本公开第二实施例还提供一种显示模组，其与上述第一实施例相比，采用结构胶9’代替上述第一实施例中的胶体9。借助结构胶9’，可以将盖板2与背板侧边72a粘接在一起。该结构胶9’在固化前为液态，相对于固态的双面胶具有更好的粘接效果。当然，上述第一、第二实施例提供的显示模组可以采用胶体9和结构胶9’中的任意一者。
并且，与第一中框侧边52a对应的背板侧边72a与盖板2相对的表面为第一表面(即，图5中背板侧边72a朝上的表面)，该第一表面上设置有第一限位凸部723，盖板2位于背光组件6的出光面一侧，且与第一限位凸部723相互叠置；结构胶9’设置于上述第一表面和盖板2与上述第一表面相对的表面之间，且结构胶9’位于第一限位凸部723背离第一中框侧边52a的一侧。也就是说，在上述第一表面上，且沿背板侧边72a的延伸方向连续布置有结构胶9’，如图5所示，该结构胶9’位于该第一限位凸部723的外侧(即，远离背离第一中框侧边52a的一侧)，以避让第一限位凸部723；图8为结构胶9’在除第一限位凸部723之外的位置处的截面图。借助上述第一限位凸部723，一方面可以限定盖板2与背板侧边72a之间的间距，从而可以控制结构胶9’的厚度，保证盖板2与背板侧边72a粘接良好；另一方面，如图7所示，可选的，可以在与第一限位凸部723对应的位置处设置上述第二卡接部(即，卡接凹部721)，例如第一限位凸部723与第二卡接部在平行于背光组件6的出光面的平面上的正投影至少部分重叠。由于第一限位凸部723和盖板2相对的表面与卡接凹部721之间的间距大于上述第一表面与卡接凹部721之间的间距，即增加了背板侧边72a在卡接凹部721处的厚度，从而可以提高该位置处的强度，以满足卡接凹部721与第一卡接凸部521卡接对强度的要求， 保证连接稳定性。另外，借助第一限位凸部723，可以在无需增加背板7整体厚度的基础上，满足卡接凹部721与第一卡接凸部521卡接对强度的要求，从而可以节省背光模组的整体厚度。
在一些可选的实施例中，如图5所示，卡接凹部721具有背离上述第一表面的第一配合面，第一卡接凸部521具有与该第一配合面相对的第二配合面，该第二配合面与第一配合面相配合，以实现卡接凹部721与第一卡接凸部521的卡接。并且，上述第一配合面与第一限位凸部723与盖板2相对的表面之间具有间距L，该间距L被设置为既能够控制结构胶9’的厚度，保证盖板2与背板侧边72a粘接良好，又能够提高该位置处的强度，以满足卡接凹部721与第一卡接凸部521卡接对强度的要求。可选的，间距L大于等于0.7mm。
在一些可选的实施例中，第一限位凸部723可以为多个，且多个第一限位凸部723例如沿背板侧边72a的延伸方向间隔分布，以间隔支撑盖板2。在这种情况下，上述第一卡接部和第二卡接部各自的数量均与第一限位凸部723的数量相同，且对应设置。例如，如图4所示，每个背板侧边72a上均设置有两个第一限位凸部723。
在一些可选的实施例中，如图5所示，上述第二配合面与第一配合面相交叠的交叠区域在第一方向上的宽度J大于等于0.4mm，且小于等于0.5mm，上述第一方向平行于背光组件6的出光面，且垂直于第一限位凸部723所在的背板侧边72a的延伸方向。通过将上述宽度J设定在上述数值范围内，既可以避免宽度J过小而导致第一卡接凸部521松动，导致卡合无效，又可以避免因宽度J过大而导致第一卡接凸部521组装困难。
在一些可选的实施例中，如图4和图5所示，相邻两个第一限位凸部723之间的中心距W(背板侧边72a为长边或短边均适用)大于等于35mm，且小于等于50mm。通过将该中心距设定在上述数值范围内，既可以避免因中 心距过小而导致卡接数量过多，造成组装困难，又可以避免因中心距过大而导致卡接数量不足，容易松动。
在一些可选的实施例中，如图5所示，第一限位凸部723在第一方向上的宽度K大于等于0.6mm，上述第一方向平行于背光组件6的出光面，且垂直于第一限位凸部723所在的背板侧边72a的延伸方向。通过将上述宽度K设定在上述数值范围内，可以避免第一限位凸部723因过窄而刮伤盖板2，同时可以增大支撑面积，提高支撑稳定性。
需要说明的是，上述实施例中提供的数值范围可以适用于任意规格的显示模组，没有特别的限制，例如，显示面板4的显示区的对角线尺寸可以大于等于12寸，且小于等于20寸。
在一些可选的实施例中，请一并参阅图9至图11，上述中框5还包括第二中框侧边52b，该第二中框侧边52b与中框主体51连接，且位于显示面板4的排线8所在一侧。以背光组件6的出光面轮廓为矩形为例，可选的，第一中框侧边52a为三个，且分别与背光组件6除非光源侧之外的其余三侧对应。当然，在实际应用中，根据背光组件6的出光面轮廓的不同或者其他具体需要，第一中框侧边52a也可以为其他任意数量，可以位于背光组件6除非光源侧之外的其余侧中的任意一者，而第二中框侧边52b则位于背光组件6的非光源侧，即，显示面板4的排线8所在一侧。另外，与背光组件6的非光源侧对应的背板侧边为背板侧边72b。
如图9所示，第二中框侧边52b位于与之对应的背板侧边72b远离背光组件6一侧(即，位于背板侧边72b外侧)，且在第二中框侧边52b与背板侧边72b相对的表面上设置有第三卡接部，背板侧边72b与第二中框侧边52b相对的表面上设置有第四卡接部，上述第三卡接部与第四卡接部卡接，从而实现中框5与背板7的固定。在一些可选的实施例中，如图9所示，上述第三卡接部为设置在第二中框侧边52b上的通槽522；上述第四卡接部为设置 在背板侧边72b与第二中框侧边52b相对的表面上的第二卡接凸部724。该第二卡接凸部724例如呈卡钩状。
需要说明的是，本公开实施例并不局限于采用第二卡接凸部724和通槽522来实现背板侧边72b与第二中框侧边52b卡接，在实际应用中，还可以采用其他任意卡接结构，本公开实施例对此没有特别的限制。
在一些可选的实施例中，第二中框侧边52b上可以设置多个第三卡接部，且多个第三卡接部沿第二中框侧边52b的延伸方向间隔分布。第四卡接部的数量与第三卡接部的数量相同，且对应卡接。
在一些可选的实施例中，如图9所示，上述第三卡接部与第四卡接部所在位置位于排线8靠近背板侧边72b一侧(即，内侧)。
在一些可选的实施例中，如图4、图9和图11所示，与第二中框侧边52b对应的背板侧边72b上设置有避让凹部720，中框主体51通过该避让凹部720与第二中框侧边52b连接。
在一些可选的实施例中，如图4和图12所示，与第二中框侧边52b对应的背板侧边72b与盖板2相对的表面为第二表面(即，图9中背板侧边72b朝上的表面)，该第二表面上设置有第二限位凸部725；盖板2位于背光组件6的出光面所在一侧，且与第二限位凸部725相互叠置；第二限位凸部725与上述第四卡接部(即，第二卡接凸部724)在背板侧边72b的延伸方向上相互错开，以避让排线8。上述第二限位凸部725的作用与上述第一限位凸部723的作用相同，在此不再赘述。
结构胶9’设置于背板侧边72b的上述第二表面和盖板2与该第二表面相对的表面之间，且与第二限位凸部725在背板侧边72b的延伸方向上相互错开。这样，可以增大第二限位凸部725在第一方向上的宽度，例如可以与背板侧边72b在上述第一方向上的宽度相同。上述第一方向平行于背光组件6的出光面，且垂直于第二限位凸部725所在的背板侧边72b的延伸方向。
本公开实施例提供的背光模组，其通过第三卡接部与第四卡接部卡接，可以进一步实现中框5与背板7的固定，从而可以在保证连接稳定性的基础上，无需再使用双面胶，从而即使在振动环境、高温信赖性条件下，仍然能够保证中框5与背板7的连接稳定性。
由于中框5的结构特性，其在制造成型之后会产生一定的变形，该变形量的大小与中框5的尺寸有一定关系，即，中框5的尺寸越大，变形量越大，由于中框5会朝显示区产生完全变形，造成中框5与显示面板4之间的间距M(如图5所示)变小，产生干涉，虽然可以通过增加该间距M的方式避免干涉，但这无法满足窄边框、薄型化要求，为了解决该问题，在一些可选的实施例中，如图13至图16所示，第一中框侧边52a上设置有第一限位结构，与第一中框侧边52a对应的背板侧边72b上设置有第二限位结构，该第一限位结构和第二限位结构相配合，用于限定第一中框侧边52a与背板侧边72b的相对位置。借助上述第一限位结构和第二限位结构，可以在组装后通过对第一中框侧边52a的限位来消除中框5产生的变形，从而可以避免中框5与显示面板4之间的间距M(如图5所示)变小产生干涉，同时无需增加间距M，可以满足窄边框、薄型化要求。
在一些可选的实施例中，如图13所示，背板侧边72a与背光组件6的出光面朝向相同的表面(即，图13中背板侧边72a朝上的表面)为第一表面；如图14所示，上述第一限位结构包括相对于第一中框侧边52a朝靠近背板侧边72a弯折的弯折部523，该弯折部523叠置于上述第一表面，且与上述第一卡接部在第一中框侧边52a的延伸方向上相互错开，以相互避让；在弯折部523上设置有通孔524；如图15所示，上述第二限位结构包括设置于上述第一表面上的第三限位凸部727，该第三限位凸部727位于通孔524中。上述第三限位凸部727与弯折部523上的通孔524共同构成了“挂耳结构”，该结构可以对中框5施加朝向靠近背板侧边72a的方向的拉力，即，对中框5 起到“向外拉扯”的作用，该作用能够在组装后消除中框5产生的变形(中框5的变形通常是朝显示面板弯曲变形)，从而可以避免中框5与显示面板4之间的间距M(如图5所示)变小产生干涉，同时无需增加间距M，可以满足窄边框、薄型化要求。例如，如图4所示，显示模组的长边边框尺寸A大于等于9mm，短边边框尺寸B大于等于4.5mm，满足窄边框要求。
在一些可选的实施例中，如图13所示，第三限位凸部727在第二方向上的宽度P大于等于0.4mm，该第二方向平行于背光组件6的出光面，且垂直于第三限位凸部727所在的背板侧边72a的延伸方向。通过将宽度P设定在上述数值范围内，既可以保证第三限位凸部727有足够的强度“挂住”弯折部523，又可以避免因宽度过窄造成制造困难。
在一些可选的实施例中，如图4所示，每个第一中框侧边52a上的弯折部523可以多个，且沿该第一中框侧边52a的延伸方向间隔设置。可选的，相邻两个弯折部523之间的中心距V(第一中框侧边52a为长边或短边均适用)大于等于40mm，且小于等于60mm。通过将中心距V设定在该数值范围内，既可以避免因中心距V过大而导致限位效果不佳，又可以避免因中心距V过小而导致组装困难。可选的，该弯折部523与上述第一卡接部在第一中框侧边52a的延伸方向上相互错开，且弯折部523与相邻的上述第一卡接部之间的中心距U(第一中框侧边52a为长边或短边均适用)大于等于30mm，且小于等于50mm。
在一些可选的实施例中，如图13和图15所示，上述第二限位结构还包括设置于背板侧边72a的上述第一表面上的限位凹槽726，第三限位凸部727设置于限位凹槽726的底面上；并且，如图6所示，弯折部523位于限位凹槽726中，且该限位凹槽726在平行于背光组件6的出光面的平面上的正投影形状与弯折部523在平行于背光组件6的出光面的平面上的正投影形状相同。借助限位凹槽726，可以对弯折部523进行限位，从而可以进一步提高 上述第三限位凸部727与弯折部523上的通孔524连接稳定性。
在一些可选的实施例中，上述第一限位结构和第二限位结构可以对应设置于除背光模组6的非光源侧之外的其余三侧中的任意一者。需要说明的是，为了避让排线8，对应背光模组6的非光源侧，即，显示面板4的排线8所在一侧未设置上述第一限位结构和第二限位结构，但是，本公开实施例并不局限于此，在实际应用中，如果对应背光模组6的非光源侧所在一侧有足够的空间情况下，也可以设置上述第一限位结构和第二限位结构，本公开对此没有特别的限制。
作为本公开实施例的一个变形实施例，如图17和图18所示，背板侧边72a与背光组件6的出光面朝向相同的表面(即，图13中背板侧边72a朝上的表面)为第一表面；上述第一限位结构包括相对于第一中框侧边52a朝靠近背板侧边72a弯折的弯折部525，该弯折部525叠置于上述第一表面，且与上述第一卡接部在第一中框侧边52a的延伸方向上相互错开，以相互避让；在弯折部525的在第一中框侧边52a的延伸方向上的两侧分别设置有两个延伸部526；上述第二限位结构包括设置于上述第一表面上的第一限位凹槽728和分别位于该第一限位凹槽728在背板侧边72a的延伸方向上的两侧的两个第二限位凹槽729，各第二限位凹槽729均与第一限位凹槽728连通；弯折部525位于第一限位凹槽728中，两个延伸部526分别位于两个第二限位凹槽729中。通过两个延伸部526分别与两个第二限位凹槽729相配合，同样可以起到对弯折部525进行限位，从而构成“挂耳结构”，该结构可以对中框5施加朝向靠近背板侧边72a的方向的拉力，即，对中框5起到“向外拉扯”的作用，该作用能够在组装后消除中框5产生的变形(中框5的变形通常是朝内弯曲变形)，从而可以保证顺利组装，同时可以减小中框5的宽度，满足窄边框、薄型化要求。
在一些可选的实施例中，上述第二限位凹槽729在远离中框5的一侧具 有开口，而在靠近中框5的一侧具有侧壁，该侧壁与延伸部526在第一中框侧边52a的延伸方向上相互交叠，以起到限位作用。当然，本公开实施例并不局限于此，在实际应用中，上述第二限位凹槽729在远离中框5的一侧也可以具有侧壁，即，在垂直于第一中框侧边52a的延伸方向上，有两个侧壁将延伸部526限定在二者之间，这同样可以起到限位作用。
综上所述，本公开实施例提供的背光模组，其通过第一卡接部与第二卡接部卡接，可以实现中框5与背板7的固定，这与现有技术相比，可以在保证连接稳定性的基础上，无需再使用双面胶，从而即使在振动环境、高温信赖性条件下，仍然能够保证中框5与背板7的连接稳定性。此外，省去了双面胶还可以节约成本。另外，由于通过第一卡接部与第二卡接部卡接具有较高的连接稳定性，这可以在一定程度上减小背板7产生的变形，从而可以适当减小中框5的厚度和宽度，以满足窄边框、薄型化要求。
本公开实施例提供的显示模组，其通过采用本公开实施例提供的上述背光模组，可以在保证连接稳定性的基础上，无需再使用双面胶，从而即使在振动环境、高温信赖性条件下，仍然能够保证中框5与背板7的连接稳定性。
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。
本公开实施例公开的显示装置，可以应用在车载或者其他对显示装置强度要求较高的场景。
可选的，显示面板4的显示区的对角线尺寸可以大于等于12寸，且小于等于20寸。
本公开实施例提供的显示装置，其通过采用本公开实施例提供的上述显示模组，可以在保证连接稳定性的基础上，无需再使用双面胶，从而即使在振动环境、高温信赖性条件下，仍然能够保证中框5与背板7的连接稳定性。
可以解的是，以上实施方式仅仅是为了说明本公开的原理而采用的示例 性实施方式，然而本公开并不局限于此。对于本领域内的普通技术人员而言，在不脱离本公开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公开的保护范围。

Claims (21)

  1. 一种背光模组，其特征在于，包括背光组件、背板和中框，所述背板为压铸件，且包括位于背离所述背光组件的出光面一侧的背板主体和环绕所述背光组件设置的背板侧边；所述中框包括中框主体，所述中框主体位于所述背板侧边靠近所述背光组件一侧；
    所述中框还包括与所述中框主体连接，且位于所述背板侧边靠近所述背光组件一侧的第一中框侧边，所述第一中框侧边和与之对应的所述背板侧边相对的表面上设置有第一卡接部，所述背板侧边与所述第一中框侧边相对的表面上设置有第二卡接部，所述第一卡接部与所述第二卡接部卡接。
  2. 根据权利要求1所述的背光模组，其特征在于，所述第一卡接部为设置在所述第一中框侧边与所述背板侧边相对的表面上的第一卡接凸部；所述第二卡接部为设置在所述背板侧边与所述第一中框侧边相对的表面上的卡接凹部。
  3. 根据权利要求1所述的背光模组，其特征在于，所述中框还包括与所述中框主体连接，且位于所述背光组件的非光源侧的第二中框侧边，所述背光组件除所述非光源侧之外的其余侧中的至少一者设置有所述第一中框侧边；
    所述第二中框侧边位于与之对应的所述背板侧边远离所述背光组件一侧，且在所述第二中框侧边与所述背板侧边相对的表面上设置有第三卡接部，所述背板侧边与所述第二中框侧边相对的表面上设置有第四卡接部，所述第三卡接部与所述第四卡接部卡接。
  4. 根据权利要求3所述的背光模组，其特征在于，所述第三卡接部为设置在所述第二中框侧边上的通槽；所述第四卡接部为设置在所述背板侧边 与所述第二中框侧边相对的表面上的第二卡接凸部。
  5. 根据权利要求3所述的背光模组，其特征在于，与所述第二中框侧边对应的所述背板侧边上设置有避让凹部，所述中框主体通过所述避让凹部与所述第二中框侧边连接。
  6. 根据权利要求1-5任意一项所述的背光模组，其特征在于，所述第一中框侧边上设置有第一限位结构，与所述第一中框侧边对应的所述背板侧边上设置有第二限位结构，所述第一限位结构和所述第二限位结构相配合，用于限定所述第一中框侧边与所述背板侧边的相对位置。
  7. 根据权利要求6所述的背光模组，其特征在于，所述背板侧边与所述背光组件的出光面朝向相同的表面为第一表面；
    所述第一限位结构包括相对于所述第一中框侧边朝靠近所述背板侧边弯折的弯折部，所述弯折部叠置于所述第一表面，且与所述第一卡接部在所述第一中框侧边的延伸方向上相互错开；在所述弯折部上设置有通孔；
    所述第二限位结构包括设置于所述第一表面上的第三限位凸部，所述第三限位凸部位于所述通孔中。
  8. 根据权利要求7所述的背光模组，其特征在于，所述第三限位凸部在第二方向上的宽度大于等于0.4mm，所述第二方向平行于所述背光组件的出光面，且垂直于所述第三限位凸部所在的所述背板侧边的延伸方向。
  9. 根据权利要求7所述的背光模组，其特征在于，所述第二限位结构还包括设置于所述第一表面上的限位凹槽，所述第三限位凸部设置于所述限位凹槽的底面上；
    所述弯折部位于所述限位凹槽中，且所述限位凹槽在平行于所述背光组 件的出光面的平面上的正投影形状与所述弯折部在平行于所述背光组件的出光面的平面上的正投影形状相同。
  10. 根据权利要求6所述的背光模组，其特征在于，所述背板侧边与所述背光组件的出光面朝向相同的表面为第一表面；
    所述第一限位结构包括相对于所述第一中框侧边朝靠近所述背板侧边弯折的弯折部，所述弯折部叠置于所述第一表面，且与所述第一卡接部在所述第一中框侧边的延伸方向上相互错开；在所述弯折部的在所述第一中框侧边的延伸方向上的两侧分别设置有两个延伸部；
    所述第二限位结构包括设置于所述第一表面上的第一限位凹槽和分别位于所述第一限位凹槽在所述背板侧边的延伸方向上的两侧的两个第二限位凹槽，各所述第二限位凹槽均与所述第一限位凹槽连通；所述弯折部位于所述第一限位凹槽中，两个所述延伸部分别位于两个所述第二限位凹槽中。
  11. 根据权利要求1所述的背光模组，其特征在于，所述背板侧边靠近所述背光组件的表面上还设置有支撑凸台，用于支撑所述中框主体。
  12. 一种显示模组，包括显示面板，其特征在于，还包括权利要求1-11任意一项所述的背光模组。
  13. 根据权利要求12所述的显示模组，其特征在于，所述显示模组还包括盖板和结构胶，其中，
    与所述第一中框侧边对应的所述背板侧边与所述盖板相对的表面为第一表面，所述第一表面上设置有第一限位凸部，所述盖板位于所述背光组件的出光面一侧，且与所述第一限位凸部相互叠置；
    所述结构胶设置于所述第一表面和所述盖板与所述第一表面相对的表面之间，且所述结构胶位于所述第一限位凸部背离所述第一中框侧边的一 侧。
  14. 根据权利要求13所述的显示模组，其特征在于，所述第一卡接部和所述第二卡接部各自的数量均与所述第一限位凸部的数量相同，且对应设置。
  15. 根据权利要求14所述的显示模组，其特征在于，所述卡接凹部具有背离所述第一表面的第一配合面，所述第一卡接凸部具有第二配合面，所述第二配合面与所述第一配合面相配合；
    所述第一配合面与所述第一限位凸部与所述盖板相对的表面之间具有间距。
  16. 根据权利要求15所述的显示模组，其特征在于，所述间距大于等于0.7mm。
  17. 根据权利要求15所述的显示模组，其特征在于，所述第二配合面与所述第一配合面相交叠的交叠区域在第一方向上的宽度大于等于0.4mm，且小于等于0.5mm，所述第一方向平行于所述背光组件的出光面，且垂直于所述第一限位凸部所在的所述背板侧边的延伸方向。
  18. 根据权利要求13所述的显示模组，其特征在于，相邻两个所述第一限位凸部之间的中心距大于等于35mm，且小于等于50mm。
  19. 根据权利要求13所述的显示模组，其特征在于，所述第一限位凸部在第一方向上的宽度大于等于0.6mm，所述第一方向平行于所述背光组件的出光面，且垂直于所述第一限位凸部所在的所述背板侧边的延伸方向。
  20. 根据权利要求13所述的显示模组，其特征在于，所述中框还包括与所述中框主体连接，且位于所述背光组件的非光源侧的第二中框侧边，所述背光组件除所述非光源侧之外的其余侧中的至少一者设置有所述第一中框侧边；所述第二中框侧边位于与之对应的所述背板侧边远离所述背光组件一侧，且在所述第二中框侧边与所述背板侧边相对的表面上设置有第三卡接部，所述背板侧边与所述第二中框侧边相对的表面上设置有第四卡接部，所述第三卡接部与所述第四卡接部卡接；
    与所述第二中框侧边对应的所述背板侧边与所述盖板相对的表面为第二表面，所述第二表面上设置有第二限位凸部；所述盖板位于所述背光组件的出光面一侧，且与所述第二限位凸部相互叠置；所述第二限位凸部与所述第四卡接部在所述背板侧边的延伸方向上相互错开；
    所述结构胶设置于所述第二表面和所述盖板与所述第二表面相对的表面之间，且与所述第二限位凸部在所述背板侧边的延伸方向上相互错开。
  21. 一种显示装置，其特征在于，包括权利要求12-20任意一项所述的显示模组。
PCT/CN2022/090275 2022-04-29 2022-04-29 背光模组、显示模组及显示装置 WO2023206362A1 (zh)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104267522A (zh) * 2014-09-28 2015-01-07 深圳市华星光电技术有限公司 背光模组以及液晶显示装置
CN207908836U (zh) * 2018-02-11 2018-09-25 昆山龙腾光电有限公司 一种液晶模组及显示装置
CN214669977U (zh) * 2021-04-07 2021-11-09 惠州视维新技术有限公司 显示装置
CN214669968U (zh) * 2020-11-20 2021-11-09 京东方科技集团股份有限公司 显示装置
CN113625480A (zh) * 2020-05-09 2021-11-09 深圳市万普拉斯科技有限公司 显示装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104267522A (zh) * 2014-09-28 2015-01-07 深圳市华星光电技术有限公司 背光模组以及液晶显示装置
CN207908836U (zh) * 2018-02-11 2018-09-25 昆山龙腾光电有限公司 一种液晶模组及显示装置
CN113625480A (zh) * 2020-05-09 2021-11-09 深圳市万普拉斯科技有限公司 显示装置
CN214669968U (zh) * 2020-11-20 2021-11-09 京东方科技集团股份有限公司 显示装置
CN214669977U (zh) * 2021-04-07 2021-11-09 惠州视维新技术有限公司 显示装置

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