Backboard assembly, backlight module and display device

Abstract

The application discloses a back plate assembly, a backlight module and a display device. The back plate assembly comprises a bottom back plate, an elastic self-locking and self-bouncing assembly and an upper frame. The elastic self-locking and self-bouncing assembly is arranged on the bottom back plate, and a part of the elastic self-locking and self-bouncing assembly can slide up and down in the bottom back plate and has a first position and a second position. The upper frame has a hinge side and a locking side arranged oppositely. A pressing gap is arranged between the locking side and the bottom back plate, so that the elastic self-locking and self-bouncing assembly can be pressed by the locking side when the elastic self-locking and self-bouncing assembly is in the first position and the second position. The hinge side is hinged to the bottom back plate, and the locking side is provided with a first locking part. When the elastic self-locking and self-bouncing assembly is pressed for multiple times, the elastic self-locking and self-bouncing assembly can be alternately moved to the first position and the second position. When the elastic self-locking and self-bouncing assembly is moved to the first position, the elastic self-locking and self-bouncing assembly is locked with the first locking part. When the elastic self-locking and self-bouncing assembly is moved to the second position, the elastic self-locking and self-bouncing assembly is disengaged from the first locking part. The technical scheme of the application is convenient for repairing the lamp plate.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a backplane assembly, a backlight module using the backplane assembly, and a display device using the backlight module. Background Technology

[0002] With the improvement of people's living standards, more and more display devices are entering people's lives. Display devices include backlight modules and display panels. The backlight module includes a back panel, a lamp panel, and optical films. The lamp panel is located below the optical films, and both the lamp panel and the optical films are located within the cavity formed by the back panel. The display panel is glued to the back panel or the middle frame connected to the back panel by adhesive, and is located above the optical films. However, traditional back panels are usually a one-piece structure. When the lamp panel malfunctions and needs to be repaired or replaced, the adhesive must first be removed with tools, and then the optical films must be removed. This operation is cumbersome and can damage the display panel or optical films in severe cases. Summary of the Invention

[0003] The main objective of this invention is to provide a backplate assembly that aims to improve the cumbersome process of inspecting and replacing light panels.

[0004] To achieve the above objectives, the back panel assembly proposed in this invention includes a bottom back panel, an elastic self-locking self-springing assembly, and a top frame. The elastic self-locking self-springing assembly is disposed on the bottom back panel, and a portion of the elastic self-locking self-springing assembly can slide up and down within the bottom back panel, having a first position and a second position. The top frame has a hinge side and a locking side disposed opposite to each other, and a pressing gap is provided between the locking side and the bottom back panel so that the elastic self-locking self-springing assembly can be pressed by the locking side when it is in both the first position and the second position. The hinge side is hinged to the bottom back panel, and the locking side has a first locking part, which is used to press the elastic self-locking self-springing assembly. When the first locking part presses the elastic self-locking self-springing assembly multiple times, the elastic self-locking self-springing assembly can alternately move to the first position and the second position. When the elastic self-locking self-springing assembly moves to the first position, it locks with the first locking part. When the elastic self-locking self-springing assembly moves to the second position, it disengages from the first locking part.

[0005] In one embodiment, the elastic self-locking and self-rebounding component includes:

[0006] The slider is slidably disposed on the bottom back plate and can reciprocate in the up and down direction under the support of the first locking part, and has a first position and a second position; the slider is provided with a heart-shaped guide rail, and the slider is also provided with a second locking part;

[0007] A pull-back member, one end of which is connected to the slider and the other end is fixedly connected to the bottom back plate, and exerts an upward pulling force on the slider; and

[0008] A hook, one end of which is hinged to the bottom back plate, and the other end extends into the heart-shaped guide rail and can move along the trajectory of the heart-shaped guide rail;

[0009] When the slider moves to the first position, the hook pulls the slider downward to prevent the pull-back member from continuing to pull the slider upward, and the second locking part locks with the first locking part; when the slider moves to the second position, the hook does not pull the slider downward, and the second locking part pops open the first locking part.

[0010] In one embodiment, the first locking part is a first buckle, and the second locking part is a second buckle; the bottom back plate has a guide groove that extends in the vertical direction and has an inclined wall, and a portion of the second buckle is located in the guide groove and abuts against the inclined wall. The inclined wall is inclined from bottom to top in a direction away from the first buckle, so that the second buckle gradually disengages from the first buckle when it moves upward under the pull-back action of the pull-back member.

[0011] In one embodiment, the second latch includes:

[0012] The fastener body is disposed on the slider and is used to engage with the first buckle; and

[0013] A connecting post protrudes from the buckle body and extends into the guide groove to abut against the inclined wall.

[0014] In one embodiment, the hinge side is hinged to the bottom back plate via a pivot, and a torsion spring is sleeved on the pivot. One end of the torsion spring is connected to the bottom back plate, and the other end is connected to the hinge side.

[0015] And / or, an elastic pad is sandwiched between the locking side and the bottom back plate.

[0016] In one embodiment, the bottom back plate has a groove on the side facing the upper frame, and the upper frame has a plug-in part that is inserted into the groove.

[0017] In one embodiment, an elastic buffer is sandwiched between the groove wall and the insertion portion.

[0018] The present invention also proposes a backlight module, characterized in that it includes a lamp board, an optical film, an outer frame, and the aforementioned backplate assembly, wherein the bottom backplate forms a receiving cavity, the lamp board and the optical film are disposed within the receiving cavity, and the bottom backplate and the upper frame are nested within the outer frame, the outer frame comprising:

[0019] The main body, the bottom back plate and part of the upper frame are nested within the main body, the main body has a clearance opening for exposing the hinge side; and

[0020] A connecting piece is provided at the clearance opening and is detachably connected to the main body.

[0021] In one embodiment, the main body has a plug-in groove, and the connecting piece has a protruding embedding portion, which is embedded in the plug-in groove.

[0022] The present invention also proposes a display device, characterized in that it includes a display panel and the aforementioned backlight module, wherein the display panel is disposed on the side of the upper frame away from the bottom back plate.

[0023] The technical solution of this invention uses a rotatable connection between the bottom back plate and the upper frame in the back plate assembly. This allows the upper frame to rotate relative to the bottom back plate, at least partially detaching from it. This facilitates the exposure of the lamp plate or optical film located on the bottom back plate, avoiding the risk of damage to the optical film or display panel caused by removing the adhesive under the display panel using tools. Furthermore, by providing an elastic self-locking component on the bottom back plate, when the first locking part of the upper frame is repeatedly pressed, the elastic self-locking component can alternately move to a first position and a second position. When the elastic self-locking component moves to the first position, it locks itself with the first locking part; when it moves to the second position, it disengages from the first locking part. Therefore, whether locking the upper frame to the bottom back plate or detaching the locking side of the upper frame from the bottom back plate, the user only needs to press the upper frame. This implementation method is simple, convenient, time-saving, and labor-saving. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0025] Figure 1 This is a top view of one embodiment of the backplate assembly of the present invention;

[0026] Figure 2 for Figure 1 Sectional view of AA;

[0027] Figure 3This is a partial structural diagram of the bottom back plate in the back plate assembly according to Embodiment 1 of the present invention from one perspective;

[0028] Figure 4 for Figure 3 A magnified view of a section at point B in the middle;

[0029] Figure 5 This is a schematic diagram of the structure of a portion of the upper frame of the back panel assembly in Embodiment 1 of the present invention when it is locked to the elastic self-locking and self-springing assembly.

[0030] Figure 6 This is a left view of the backplate assembly according to Embodiment 1 of the present invention;

[0031] Figure 7 for Figure 6 Sectional view of CC;

[0032] Figure 8 for Figure 7 A magnified view of a section at point D;

[0033] Figure 9 This is a top view of another example of the backplate assembly according to Embodiment 1 of the present invention;

[0034] Figure 10 for Figure 9 Sectional view of EE;

[0035] Figure 11 This is a partial cross-sectional view of the backlight module of Embodiment 2 of the present invention;

[0036] Figure 12 This is a schematic diagram of the assembly structure of the backplate assembly and the outer frame in the backlight module of Embodiment 2 of the present invention;

[0037] Figure 13 for Figure 12 A magnified view of a section at point F in the middle;

[0038] Figure 14 This is a schematic diagram of the main structure of the outer frame in the backlight module of Embodiment 2 of the present invention;

[0039] Figure 15 for Figure 14 A magnified view of a section at point G in the middle;

[0040] Figure 16 This is a partial structural diagram of the connecting piece of the outer frame in the backlight module of Embodiment 2 of the present invention;

[0041] Figure 17 This is a partial cross-sectional view of the display device according to Embodiment 3 of the present invention.

[0042] Explanation of icon numbers:

[0043]

[0044]

[0045] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0047] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0048] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0049] Example 1:

[0050] The present invention proposes a backplate assembly 100.

[0051] In the embodiments of the present invention, please refer to the reference. Figures 1 to 5The back panel assembly 100 includes a bottom back panel 110, an elastic self-locking and self-springing assembly 140, and an upper frame 120. The elastic self-locking and self-springing assembly 140 is disposed on the bottom back panel 110, and a portion of the elastic self-locking and self-springing assembly 140 can slide up and down within the bottom back panel 110 and have a first position and a second position. The upper frame 120 has a hinge side 120a and a locking side 120c disposed opposite to each other. The hinge side 120a is hinged to the bottom back panel 110, and a pressing gap is provided between the locking side 120c and the bottom back panel 110, so that the elastic self-locking and self-springing assembly 140 is in the first position and the second position. Both positions can be pressed by the locking side 120c; the locking side 120c is provided with a first locking part 121, which is used to press the elastic self-locking self-spring component 140; when the first locking part 121 presses the elastic self-locking self-spring component 140 multiple times, the elastic self-locking self-spring component 140 can move alternately to the first position and the second position, and when the elastic self-locking self-spring component 140 moves to the first position, it locks with the first locking part 121; when the elastic self-locking self-spring component 140 moves to the second position, it disengages from the first locking part 121.

[0052] It should be noted that the terms "upper" and "lower" in the technical solution of this invention are based on the installation state, that is, during installation, the bottom back plate 110 of the back plate assembly 100 is located on the side closer to the ground, and the upper frame 120 is located on the side of the bottom back plate 110 away from the ground; that is, the thickness direction of the display device during normal use. Specifically, the bottom back plate 110 includes a bottom wall 111 and a side wall 112 connected to the bottom wall 111. The bottom wall 111 and the side wall 112 together enclose a receiving cavity 101 for mounting the lamp plate 200 and the optical film 300. It can be understood that the side of the upper frame 120 away from the bottom back plate 110 is usually provided with a display panel 500. The upper frame 120 has a hinge side 120a, which is hinged to the side wall 112 of the bottom back plate 110. This allows the upper frame 120 and the side wall 112 of the bottom back plate 110 to overlap vertically. It also allows the side of the upper frame 120 opposite to the hinge side 120a to be lifted away from the bottom back plate 110. That is, when the hinge side 120a of the upper frame 120 rotates relative to the bottom back plate 110, the upper frame 120 can be flipped to open the receiving cavity 101 on the bottom back plate 110, thereby exposing the optical film 300 or directly exposing the lamp panel 200. This avoids the risk of damaging the optical film 300 or the display panel 500 by removing the adhesive under the display panel 500 with tools. It should be noted that when the optical film 300 is also installed within the space enclosed by the bottom back plate 110, the optical film 300 is first exposed after the upper frame 120 is rotated to make the upper frame 120 and the bottom back plate 110 misaligned. At this time, the user can simply remove the optical film 300 to inspect the lamp board 200. When the optical film 300 is installed inside the upper frame 120, the lamp board 200 is directly exposed after the upper frame 120 is rotated to make the upper frame 120 and the bottom back plate 110 misaligned. At this time, the lamp board 200 can be directly inspected, disassembled, and reassembled.

[0053] During normal use, it is necessary to ensure that the connection between the upper frame 120 and the bottom back plate 110 is relatively stable. In the technical solution of the present invention, a pressing gap is provided between the locking side 120c and the bottom back plate 110 so that the elastic self-locking self-springing component 140 can be pressed by the locking side 120c when it is in the first position and the second position. By installing the elastic self-locking self-springing component 140 on the bottom back plate 110, the locking side 120c of the upper frame 120 has a first locking part 121. The first locking part 121 can press the elastic self-locking self-springing component 140, so that a part of the elastic self-locking self-springing component 140 can slide in the bottom back plate 110, so that the sliding part can have a first position and a second position. When the elastic self-locking self-springing component 140 is pressed once by the first locking part 121, and the sliding part of the elastic self-locking self-springing component 140 stays in the first position, the elastic self-locking self-springing component 140 can lock with the first locking part 121, thereby achieving the effect of pressing and locking the upper frame 120. Because there is a pressing gap between the locking side 120c and the bottom back plate 110, the elastic self-locking self-springing component 140 can be pressed by the locking side 120c when it is in the first position and the second position. Therefore, when the elastic self-locking self-springing component 140 stops in the first position, if the elastic self-locking self-springing component 140 is pressed again by the first locking part 121, the sliding part of the elastic self-locking self-springing component 140 can stop in the second position. At this time, the elastic self-locking self-springing component 140 can disengage from the first locking part 121, thereby achieving the effect of automatically springing the upper frame 120 away from the bottom back plate 110. With this configuration, when the user presses the upper frame 120 repeatedly, the first locking part 121 of the upper frame 120 and the elastic self-locking and self-springing component 140 can be switched between locked and disengaged states. This allows the user to lock or unlock the upper frame 120 simply by pressing, making the operation simple and eliminating the need for additional prying tools to lift the locking side 120c of the upper frame 120 away from the bottom back plate 110. Furthermore, based on the design of a pressing gap between the locking side 120c and the bottom back plate 110, an elastic pad is also sandwiched between the locking side 120c and the bottom back plate 110. Specifically, this elastic pad can be elastic foam or a rubber block, etc. This design ensures that when the elastic self-locking assembly 140 moves to the first and second positions, the locking side 120c continues to compress the elastic pad, allowing the locking side 120c to drive the first locking part 121 to press down on the elastic self-locking assembly 140, thus driving the elastic self-locking assembly 140 to move to different positions. Furthermore, by providing the elastic pad, it also effectively blocks light from the gap between the locking side 120c and the bottom back plate 110, reducing the risk of light leakage from the back plate assembly 100 through this gap.

[0054] Specifically, in order to lock and release the upper frame 120 from the elastic self-locking and self-springing component 140 by pressing, the elastic self-locking and self-springing component 140 can adopt a press-type self-locking switch principle structure or a press-type ballpoint pen core ejection mechanism principle structure. Since the press-type self-locking switch principle structure and the press-type ballpoint pen core ejection mechanism principle are existing technologies, their detailed structures will not be described in detail here. It should be noted that when the elastic self-locking self-springing assembly 140 adopts the principle structure of a press-type ballpoint pen refill mechanism, in order to achieve the locking effect between the first locking part 121 and the elastic self-locking self-springing assembly 140, the first locking part 121 can be an insert block, and the elastic self-locking self-springing assembly 140 has a claw. Based on the principle of the press-type ballpoint pen refill mechanism driving the ballpoint pen refill to slide, the claw can be equivalent to the ballpoint pen refill. During the sliding process, the claw can at least partially extend out of the bottom back plate 110 to release the first locking part 121, or the claw can extend into the bottom back plate 110 to lock the first locking part 121, thereby achieving the locking effect between the upper frame 120 and the bottom back plate 110.

[0055] The technical solution of the present invention rotatably connects the bottom back plate 110 and the upper frame 120 in the back plate assembly 100. This allows the upper frame 120 to be at least partially detached from the bottom back plate 110 when it rotates relative to the bottom back plate 110. This facilitates the exposure of the lamp plate 200 or optical film 300 disposed on the bottom back plate 110, thereby avoiding the risk of damage to the optical film 300 or the display panel 500 caused by removing the adhesive under the display panel 500 with tools. Furthermore, by providing an elastic self-locking and self-springing component 140 on the bottom back plate 110, when the first locking part 121 of the upper frame 120 presses the elastic self-locking and self-springing component 140 multiple times, the elastic self-locking and self-springing component 140 can alternately move to the first position and the second position. When the elastic self-locking and self-springing component 140 moves to the first position, it achieves the effect of locking itself with the first locking part 121. When the elastic self-locking and self-springing component 140 moves to the second position, it achieves the effect of disengaging itself from the first locking part 121. Thus, whether the user locks the upper frame 120 on the bottom back plate 110 or disengages the locking side 120c of the upper frame 120 from the bottom back plate 110, they only need to press the upper frame 120. This implementation method is simple, convenient, time-saving, and labor-saving.

[0056] Specifically, the elastic self-locking and self-springing assembly 140 includes a slider 141, a pull-back member 143, and a hook 144. The slider 141 is slidably disposed on the bottom back plate 110 and can reciprocate in the up-down direction under the support of the first locking part 121, and has a first position and a second position. A heart-shaped guide rail 1411 is provided on the slider 141, and a second locking part 142 is also protruding on the slider 141. One end of the pull-back member 143 is connected to the slider 141, and the other end is fixedly connected to the bottom back plate 110, and has an upward pulling force on the slider 141. One end of the hook 144 is hinged to the bottom back plate 110, and the other end extends into the heart-shaped guide rail 1411 and can move along the trajectory of the heart-shaped guide rail 1411. When the slider 141 moves to the first position, the hook 144 pulls the slider 141 downward to prevent the pull-back member 143 from continuing to pull the slider 141 upward, and the second locking part 142 locks with the first locking part 121. When the slider 141 moves to the second position, the hook 144 does not pull the slider 141 downward, and the second locking part 142 pops open the first locking part 121.

[0057] It should be noted that the heart-shaped guide rail 1411 in this invention refers to any guide rail with a shape close to a heart. The heart-shaped guide rail 1411 is divided by the bend in the middle of its top. The two sides of the bend are the locking groove and the unlocking groove, respectively. That is, when the first locking part 121 is pressed so that the first locking part 121 and the second locking part 142 on the slider 141 are locked together, after the upper frame 120 is pressed, the upper frame 120 drives the slider 141 and the second locking part 142 to move downward. At the same time, the end of the hook 144 that extends into the heart-shaped guide rail 1411 naturally moves along the locking groove and finally stops at the bend in the middle of the top of the heart-shaped guide rail 1411. At this time, the position of the slider 141 is the first position. Due to the setting of the pull-back member 143, when the slider 141 moves to the first position, the pulling force of the hook 144 on the slider 141 and the pulling force of the pull-back member 143 on the slider 141 are balanced, thereby ensuring that the slider 141 is stationary in the first position, and at this time the second locking part 142 and the first locking part 121 are locked to each other.

[0058] With the slider 141 in the first position, when the upper frame 120 is pressed again, the upper frame 120 first drives the slider 141 and the second locking part 142 to move downward. At the same time, the hook 144 moves from the bend in the middle of the top of the heart-shaped guide rail 1411 into the unlocking groove. When the slider 141 moves to the point where the top bend of its unlocking groove abuts against the hook 144, the user can release the upper frame 120. The slider 141 moves upward in the opposite direction under the action of the pull-back member 143, and drives the upper frame 120 to move upward together until the hook 144 moves to the bottom bend of the heart-shaped guide rail 1411. At this time, the slider 141 is in the second position, and the first locking part 121 and the second locking part 142 disengage from each other to achieve the effect of popping open the upper frame 120.

[0059] Specifically, the first locking part 121 can be a latch, and the second locking part 142 can be a claw. When the slider 141 is in the first position, the second locking part 142 is located inside the bottom back plate 110 and is in a gathered state to lock the latch. When the slider 141 is in the second position, the second locking part 142 is located outside the bottom back plate 110 and is in an open state to release the latch. Alternatively, the first locking part 121 can be a buckle, and the second locking part 142 can also be a buckle. The bottom back plate 110 has an inclined groove that guides the second locking part 142. When the slider 141 moves upward under the action of the pull-back member 143, the second locking part 142 moves simultaneously in the direction of disengaging from the first locking part 121 under the resistance of the groove wall of the inclined groove. This also achieves the effect of automatically locking and unlocking the upper frame 120 and the bottom back plate 110 through the pressing action.

[0060] In one embodiment, please refer to the reference Figures 2 to 5 The first locking part 121 is the first buckle, and the second locking part 142 is the second buckle. The bottom back plate 110 is provided with a guide groove 1124, which extends in the vertical direction and has an inclined wall 1124a. The part of the second buckle is located in the guide groove 1124 and abuts against the inclined wall 1124a. The inclined wall 1124a is inclined from bottom to top in a direction away from the first buckle, so that the second buckle gradually disengages from the first buckle when it moves upward under the pull-back action of the pull-back member 143.

[0061] By configuring the first locking part 121 as the first latch and the second locking part 142 as the second latch, the first latch and the second latch engage to achieve a mutual locking effect, thus ensuring a relatively stable locking state. It is understandable that with ordinary latch structures, driving one latch in one direction to engage with the other, and then driving it again in the same or opposite direction, will not automatically disengage the two latches. In this example, by providing a guide groove 1124 on the bottom back plate 110, and the guide groove 1124 having an inclined wall 1124a that abuts against the second latch, and this inclined wall 1124a tilting upwards away from the first latch, when the second latch moves upwards under the pull-back action of the pull-back member 143, the second latch is held by the inclined wall 1124a and gradually moves away from the first latch, thereby achieving the effect of disengaging from the first latch.

[0062] Specifically, when the mutual limiting direction of the first and second latches is vertical, if it is necessary to move the second latch away from the first latch, the second latch can disengage from the first latch in either the left-right direction or the front-back direction. For example, to move the second latch backward to disengage from the first latch, the inclined wall 1124a can be configured to tilt backward from bottom to top, with a portion of the second latch extending into the guide groove 1124 in the left-right direction away from the first latch, thereby allowing the second latch to deform backward to disengage from the first latch when moving upward. Alternatively, to move the second latch to the left to disengage from the first latch, the inclined wall 1124a can be configured to tilt left from bottom to top, with a portion of the second latch extending into the guide groove 1124 in the front-back direction away from the first latch, thereby allowing the second latch to deform backward to disengage from the first latch when moving upward.

[0063] Specifically, please refer to the following: Figures 2 to 5 The second buckle includes a buckle body 1421 and a connecting post 1422. The buckle body 1421 is disposed on the slider 141 and is used to engage with the first buckle. The connecting post 1422 protrudes from the buckle body 1421 and extends into the guide groove 1124 to abut against the inclined wall 1124a.

[0064] The buckle body 1421 of the second buckle engages with the first buckle, thereby ensuring that the first buckle can engage with the second buckle. The connecting post 1422 protrudes from the buckle body 1421 and extends into the guide groove 1124 to abut against the inclined wall 1124a. This ensures that the second buckle can move away from the first buckle along the inclined wall 1124a while moving upward, thus achieving the effect of the upper frame 120 automatically opening. On the other hand, it also avoids a small contact area between the connecting post 1422 and the inclined wall 1124a, thereby reducing the wear on the second buckle.

[0065] Furthermore, please refer to the following: Figures 6 to 8 The hinge side 120a is hinged to the bottom back plate 110 via a pivot 150. A torsion spring 160 is mounted on the pivot 150. One end of the torsion spring 160 is connected to the bottom back plate 110, and the other end is connected to the hinge side 120a.

[0066] By providing a torsion spring 160 over the pivot 150 of the hinge side 120a, with one end of the torsion spring 160 connected to the bottom back plate 110 and the other end connected to the hinge side 120a, when the first locking part 121 of the upper frame 120 disengages from the elastic self-locking and self-springing assembly 140, it can be rotated at a certain angle under the action of the torsion spring 160, thereby enhancing the self-springing effect of the upper frame 120.

[0067] Furthermore, such as Figure 3 As shown, the bottom back plate 110 has a handle groove 1123 at the position corresponding to the locking side 120c.

[0068] By providing a handle groove 1123 on the locking side 120c of the upper frame 120 corresponding to the bottom back plate 110, the user can insert their hand into the handle groove 1123 and lift the upper frame 120 away from the bottom wall 111 of the bottom back plate 110, thereby expanding the flipping range of the upper frame 120. Furthermore, by providing the handle groove 1123, excessive space is avoided, making it easier for the user to lift the upper frame 120.

[0069] Of course, in other embodiments, a handle may be provided on the locking side 120c of the upper frame 120, so that the user can hold the handle to lift the upper frame 120 away from the bottom wall 111 of the bottom back plate 110.

[0070] Furthermore, please refer to the following: Figures 9 to 10 The bottom back plate 110 has a groove 1122 on the side facing the upper frame 120, and the upper frame 120 has a plug part 122, which is inserted into the groove 1122.

[0071] By providing a groove 1122 on the side of the sidewall 112 facing the upper frame 120, and the upper frame 120 having an insertion part 122 that is inserted into the groove 1122, the connection interface between the upper frame 120 and the bottom back plate 110 is not planar. This serves two purposes: firstly, it prevents dust and light leakage; secondly, it allows the upper frame 120 and the bottom back plate 110 to be mutually positioned in a direction parallel to the bottom wall 111. Specifically, the groove 1122 can extend in a straight line or be annular, and its cross-section can be U-shaped, L-shaped, or other shapes.

[0072] Furthermore, please refer to the following: Figures 4 to 7 An elastic buffer 130 is sandwiched between the groove wall of the groove 1122 and the insertion part 122.

[0073] By sandwiching an elastic buffer 130 between the groove wall of the groove 1122 and the insertion part 122, the elastic buffer 130, which can be made of elastic plastic or elastic foam, can effectively cushion the collision between the upper frame 120 and the bottom back plate 110, and also provide good protection when the insertion part 122 of the upper frame 120 is inserted into the groove 1122 of the side wall 112. In addition, when the elastic buffer 130 is made of elastic plastic, it can also provide good light leakage prevention.

[0074] Example 2:

[0075] This invention also proposes a backlight module, please refer to the reference. Figures 11 to 16 The backlight module includes a lamp panel 200, an optical film 300, an outer frame 400, and a backplate assembly 100. The specific structure of the backplate assembly 100 is as described in the above embodiments. Since this second subject adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, and will not be described in detail here. Among them, the bottom wall 111 and the side wall 112 together form a receiving cavity 101. The lamp panel 200 and the optical film 300 are disposed in the receiving cavity 101. The bottom backplate 110 and the upper frame 120 are nested in the outer frame 400. The outer frame 400 includes a main body 410 and a connecting piece 420. The bottom backplate 110 and part of the upper frame 120 are nested in the main body 410. The main body 410 has a clearance opening 411, which is used to expose the hinge side 120a. The connecting piece 420 is disposed at the clearance opening 411 and is detachably connected to the main body 410.

[0076] By placing both the lamp panel 200 and the optical film 300 within the receiving cavity 101, both the lamp panel 200 and the optical film 300 are well protected. Furthermore, when the upper frame 120 rotates relative to the bottom back plate 110, the optical film 300 is exposed. This allows the user to easily expose the lamp panel 200 for inspection or disassembly simply by removing the optical film 300. Moreover, placing the optical film 300 within the receiving cavity 101 of the bottom back plate 110 eliminates the need for a mounting structure on the upper frame 120 and a limiting structure to prevent the optical film 300 from falling off. Only a supporting step is needed on the bottom back plate 110 to meet the installation requirements of the optical film 300, without requiring a more complex structure.

[0077] By nesting the bottom back panel 110 and the upper frame 120 within the outer frame 400, the outer frame 400 provides better protection for the back panel assembly 100. The outer frame 400 includes a main body 410 and a connecting piece 420. The main body 410 is used to fit over the bottom back panel 110 and part of the upper frame 120. The main body 410 has a clearance opening 411 for exposing the hinge side 120a of the upper frame 120. The connecting piece 420 is located at the clearance opening 411 and is detachably connected to the main body 410. This allows the user to expose the hinge side 120a by removing only the connecting piece 420 without disassembling the entire outer frame 400. Furthermore, the clearance opening 411 provides clearance space for the upper frame 120 to rotate relative to the bottom back panel 110, which is beneficial for the upper frame 120 to open the receiving cavity 101 for maintenance of the lamp panel 200 inside the receiving cavity 101.

[0078] Specifically, the connecting piece 420 and the main body 410 can be connected by a detachable method such as snap-fit ​​connection, magnetic connection, screw connection or plug-in connection.

[0079] In one example, please refer to the reference. Figures 12 to 16 The main body 410 has a plug groove 412, and the connecting piece 420 has a protruding embedding part 421, which is embedded in the plug groove 412.

[0080] By providing a plug-in groove 412 on the main body 410 and an embedded part 421 protruding on the connecting piece 420, the embedded part 421 is embedded in the plug-in groove 412, so that the main body 410 and the connecting piece 420 can be plugged in and fitted together, thereby facilitating the mutual assembly and disassembly of the main body 410 and the connecting piece 420 and improving the assembly and disassembly efficiency of the connecting piece 420.

[0081] Example 3:

[0082] The present invention also proposes a display device, such as Figure 17As shown, the display device includes a display panel 500 and a backlight module. The backlight module adopts the specific structure described above. Since this display includes all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here. The display panel 500 is located on the side of the upper frame 120 away from the bottom back plate 110.

[0083] The backlight module provides light, and the display panel 500 displays the image. By placing the display panel 500 on the side of the upper frame 120 away from the bottom back panel 110, that is, placing the display panel 500 on the light-emitting side of the backlight module, the backlight module can provide light to the display panel 500 so that the display panel 500 can display an image with a certain brightness for the user to view.

[0084] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A backplane assembly, characterized in that, include: Back plate; A resilient self-locking and self-springing assembly, wherein the resilient self-locking and self-springing assembly is disposed on the bottom back plate, and a portion of the resilient self-locking and self-springing assembly is capable of sliding up and down within the bottom back plate and has a first position and a second position; and The upper frame has a hinged side and a locking side disposed opposite to each other. The hinged side is hinged to the bottom back plate. A pressing gap is provided between the locking side and the bottom back plate so that the elastic self-locking self-springing component can be pressed by the locking side when it is in the first position and the second position. The locking side is provided with a first locking part, which is used to press the elastic self-locking self-springing component. The elastic self-locking and self-rebounding component includes: The slider is slidably disposed on the bottom back plate and can reciprocate in the up and down direction under the support of the first locking part, and has a first position and a second position; the slider is provided with a heart-shaped guide rail, and the slider is also provided with a second locking part; A pull-back member, one end of which is connected to the slider and the other end is fixedly connected to the bottom back plate, and exerts an upward pulling force on the slider; and A hook, one end of which is hinged to the bottom back plate, and the other end extends into the heart-shaped guide rail and can move along the trajectory of the heart-shaped guide rail; When the first locking part presses the elastic self-locking self-springing component multiple times, the elastic self-locking self-springing component can move alternately to the first position and the second position. When the elastic self-locking self-springing component moves to the first position, it locks with the first locking part. The pull hook pulls the slider downward to prevent the pull-back member from continuing to pull the slider upward. When the elastic self-locking self-springing component moves to the second position, the pull hook does not pull the slider downward, and the elastic self-locking self-springing component disengages from the first locking part.

2. The backplane assembly as claimed in claim 1, characterized in that, The first locking part is a first buckle, and the second locking part is a second buckle; The bottom back plate has a guide groove that extends vertically and has an inclined wall. The second buckle is located in the guide groove and abuts against the inclined wall. The inclined wall is inclined from bottom to top away from the first buckle, so that the second buckle gradually disengages from the first buckle when it moves upward under the pull-back action of the pull-back member.

3. The backplane assembly as claimed in claim 2, characterized in that, The second buckle includes: The fastener body is disposed on the slider and is used to engage with the first buckle; and A connecting post protrudes from the buckle body and extends into the guide groove to abut against the inclined wall.

4. The backplane assembly as claimed in claim 1, characterized in that, The hinge side is hinged to the bottom back plate via a pivot. A torsion spring is sleeved on the pivot. One end of the torsion spring is connected to the bottom back plate, and the other end is connected to the hinge side. And / or, an elastic pad is sandwiched between the locking side and the bottom back plate.

5. The backsheet assembly as described in any one of claims 1 to 4, characterized in that, The bottom back plate has a groove on the side facing the upper frame, and the upper frame has a plug-in part that is inserted into the groove.

6. The backplane assembly as claimed in claim 5, characterized in that, An elastic buffer is sandwiched between the groove wall and the insertion part.

7. A backlight module, characterized in that, The assembly includes a lamp panel, an optical film, an outer frame, and a back panel assembly as described in any one of claims 1 to 6. The bottom back panel forms a receiving cavity, the lamp panel and the optical film are disposed within the receiving cavity, and the bottom back panel and the upper frame are nested within the outer frame. The outer frame includes: The main body, the bottom back plate and part of the upper frame are nested within the main body, the main body has a clearance opening for exposing the hinge side; and A connecting piece is provided at the clearance opening and is detachably connected to the main body.

8. The backlight module as described in claim 7, characterized in that, The main body has a plug-in groove, and the connecting piece has a protruding embedding part, which is embedded in the plug-in groove.

9. A display device, characterized in that, It includes a display panel and a backlight module as described in claim 8, wherein the display panel is disposed on the side of the upper frame away from the bottom back plate.

Images