CN114035372A - Backlight module and display device - Google Patents
Backlight module and display device Download PDFInfo
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- CN114035372A CN114035372A CN202111280126.5A CN202111280126A CN114035372A CN 114035372 A CN114035372 A CN 114035372A CN 202111280126 A CN202111280126 A CN 202111280126A CN 114035372 A CN114035372 A CN 114035372A
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- groove
- backlight module
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- fixing member
- buckle
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- 230000003287 optical effect Effects 0.000 claims abstract description 22
- 239000012788 optical film Substances 0.000 description 43
- 239000010408 film Substances 0.000 description 9
- 239000002390 adhesive tape Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000003292 glue Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
The application provides a backlight module and a display device using the backlight module, wherein the backlight module comprises a rubber frame, an optical diaphragm group and a fixing piece, and a bearing surface of the rubber frame is provided with a limiting groove; the edge of the optical diaphragm group is provided with a hanging lug which is arranged in the limit groove; the fixing piece is pressed on the bearing surface and is arranged opposite to the limiting groove; the fixing piece is provided with one of a buckle and a clamping groove, the rubber frame is provided with the other of the buckle and the clamping groove, and the buckle is in clamping fit with the clamping groove. According to the technical scheme, the consistency and the reliability of the optical diaphragm group fixed on the rubber frame can be improved.
Description
Technical Field
The present disclosure relates to liquid crystal display technologies, and particularly to a backlight module and a display device using the same.
Background
Backlight unit includes optical film group and is used for the gluey frame of fixed optical film group, and common gluey frame and optical film group fixed mode are glued, and the hangers of optical film group passes through the sticky tape bonding on gluing the frame by the manual work mostly, and this kind of fixed mode, the effect of pasting of sticky tape are because of the processing personnel is different, the uneven phenomenon easily appears, and the reliability that the sticky tape bonded is relatively poor, drops easily.
Disclosure of Invention
The application mainly aims to provide a backlight module and a display device using the backlight module, and aims to improve the consistency and reliability of fixing an optical diaphragm group on a rubber frame.
In order to achieve the above object, the present application provides a backlight module, which includes:
the bearing surface of the rubber frame is provided with a limit groove;
the edge of the optical diaphragm group is provided with a hanging lug, and the hanging lug is arranged in the limiting groove; and
the fixing piece is pressed on the bearing surface and is arranged opposite to the limiting groove;
the fixing piece is provided with one of a buckle and a clamping groove, the rubber frame is provided with the other of the buckle and the clamping groove, and the buckle is in clamping fit with the clamping groove.
Optionally, the fastener is arranged on the fixing piece, and the clamping groove is arranged on the bearing surface;
the protruding butt portion that is equipped with of groove lateral wall of draw-in groove, butt portion with the tank bottom wall interval of draw-in groove sets up in order to form spacing space, the buckle is including protruding elastic arm of locating the mounting and locating the pothook of elastic arm free end, the pothook is located spacing space is hooked and is located the orientation of butt portion a side surface of groove diapire.
Optionally, a first guide inclined surface is arranged on one side of the abutting part, which is away from the bottom wall of the groove, so as to guide the hook to enter the limiting space;
and/or the clamping hook is provided with a second guide inclined surface so as to guide the clamping hook to enter the limiting space.
Optionally, the supporting surface is provided with a positioning groove, the clamping groove is formed in the bottom wall of the positioning groove, the buckle is further provided with a positioning boss protruding from the fixing part, the elastic arm is protruding from one side surface of the positioning boss departing from the fixing part, and the positioning boss is inserted into the positioning groove.
Optionally, the bearing surface is provided with two clamping grooves, the two clamping grooves are respectively arranged on two sides of the limiting groove, the fixing piece is provided with two buckles, and each buckle is in clamping fit with one clamping groove.
Optionally, the hooks of the two buckles are oppositely arranged or arranged back to back.
Optionally, a sunk groove is formed in the bearing surface, the limiting groove is formed in the groove bottom of the sunk groove, and the fixing piece is limited in the sunk groove.
Optionally, the depth of the sink groove is h, and h is more than or equal to 0.25mm and less than or equal to 0.55 mm.
Optionally, a positioning hole is formed in the bottom of the limiting groove, a connecting hole is formed in the hanging lug, the connecting hole is opposite to the positioning hole, a positioning column is convexly arranged on the surface of the fixing piece, facing the limiting groove, and the positioning column penetrates through the connecting hole and the positioning hole.
The application also provides a display device, which comprises the backlight module in any one of the above items.
The application discloses backlight unit, including optics diaphragm group and be used for fixed optics diaphragm group's gluey frame and mounting. The optical diaphragm group is supported on the bearing surface of the rubber frame, the hanging lug of the optical diaphragm group is limited in the limiting groove formed in the bearing surface of the rubber frame, and then the hanging lug is pressed by the fixing piece to be fixed in the limiting groove, so that the optical diaphragm group is fixed. And glue and connect fixedly through the joint cooperation of buckle and draw-in groove between frame and the mounting for the mounting is fixed with the relative position of gluing the frame, compares in the mode that the sticky tape bonded, and the uniformity that makes optical module group fixed is higher. And the assembly between the backlight module and the optical diaphragm group can be realized without other tools, so that the assembly efficiency of the optical diaphragm group and the backlight module is improved. Meanwhile, the connection strength between the fixing piece and the rubber frame is far higher than that of the traditional adhesive tape bonding, so that the fixing reliability of the optical film group is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a top view of a backlight module according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view of the backlight module shown in FIG. 1;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a top view of the glue frame of FIG. 1;
FIG. 5 is a block diagram of the mount of FIG. 1;
FIG. 6 is a partial block diagram of one embodiment of the optical diaphragm assembly of FIG. 1.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 100 | |
21 | |
| 10 | |
211 | |
| 11 | Limiting |
212 | |
| 12 | Clamping |
213 | |
| 13 | Abutting |
214 | Second guide |
| 14 | First guide |
22 | |
| 15 | Locating |
30 | |
| 16 | Locating |
31 | |
| 17 | |
32 | Connecting |
| 20 | Fixing piece |
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that all the directional indications (such as up, down, left, right, front, and rear … …) in the embodiment of the present application are only used to explain the relative position relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indication is changed accordingly.
In this application, unless expressly stated or limited otherwise, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In addition, descriptions in this application as to "first", "second", etc. are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present application.
The present application provides a backlight module 100.
Referring to fig. 1 and fig. 2, in some embodiments of the backlight module 100 of the present application, the backlight module 100 includes:
the rubber frame 10 is characterized in that a bearing surface of the rubber frame 10 is provided with a limiting groove 11;
the optical diaphragm group 30 is provided with a hanging lug 31 at the edge of the optical diaphragm group 30, and the hanging lug 31 is arranged in the limiting groove 11; and
the fixing piece 20 is pressed on the bearing surface, and is arranged opposite to the limiting groove 11;
the fixing member 20 is provided with one of a buckle 21 and a slot 12, the rubber frame 10 is provided with the other of the buckle 21 and the slot 12, and the buckle 21 is matched with the slot 12 in a clamping manner.
The backlight module 100 provided by the present application includes a rubber frame 10, a fixing member 20 and an optical film group 30, wherein the rubber frame 10 is used as an installation base of the backlight module, and includes a surrounding edge circumferentially arranged along the circumference of the backlight module, so as to form an installation space for installing components such as the optical film group 30, a light guide sheet and a backlight source in the rubber frame 10; usually, a carrying surface is formed on the surrounding edge, the optical film group 30 often includes a plurality of optical films, such as a polarizer, a reflective film, an antireflection film, a filter film, or an optical protection film, stacked on the carrying surface, each optical film is provided with a hanging lug 31, and the hanging lugs 31 of the plurality of optical films are stacked to form the hanging lug 31 of the optical film group 30. In this embodiment, the bearing surface is provided with a limiting groove 11 for accommodating a hanging lug 31 of the optical diaphragm set 30, and when the optical diaphragm set 30 is placed on the rubber frame 10, the hanging lug 31 is limited in the limiting groove 11, so as to form primary limiting on the optical diaphragm set 30; further, the fixing member 20 is pressed on the bearing surface and aligned with the hanging lug 31, so as to prevent the hanging lug 31 from coming out of the limiting groove 11, and thus the optical film set 30 and the backlight module 100 are fixed.
Further, in this embodiment, the rubber frame 10 and the fixing member 20 are fixed by the snap-fit connection of the snap 21 and the snap 12. Specifically, the fixing member 20 is provided with one of the buckle 21 and the slot 12, the rubber frame 10 is provided with the other of the buckle 21 and the slot 12, and the buckle 21 is in clamping fit with the slot 12; through the clamping cooperation of the buckle 21 and the clamping groove 12, the fixing piece 20 and the rubber frame 10 are relatively fixed, randomness is not caused like a traditional film bonding mode, and the consistency of the assembled backlight module is high. And the connection strength between the fixing member 20 and the adhesive frame 10 is much higher than that of the conventional adhesive tape bonding, so that the fixing reliability of the optical film group 30 can be improved.
It should be noted that, this application uses mounting 20 to press and places in hangers 31 top, and at this moment, because optics diaphragm has great expansion coefficient, the display is heated when the during operation optics diaphragm and expands and leads to optics diaphragm to swell easily, in order to avoid optics diaphragm expansion and mounting 20 mutual extrusion, interval setting between mounting 20 and the hangers 31 for hangers 31 have certain inflation activity space.
It should be further noted that the clip 21 and the slot 12 may be disposed outside the limiting groove 11, or may be disposed in the limiting groove 11 or the clip 21 is disposed through the limiting groove 11, which is not limited herein.
Therefore, it can be understood that the backlight module 100 of the present application includes the rubber frame 10 and the fixing member 20 that are mutually matched to fix the optical film set 30, when the optical film set 30 is placed on the rubber frame 10, the hanging lug 31 of the optical film set 30 is limited in the limiting groove 11 formed on the bearing surface of the rubber frame 10, and then the fixing member 20 is used to press the hanging lug 31 to fix the hanging lug 31 in the limiting groove 11, thereby fixing the optical film set 30. The rubber frame 10 and the fixing piece 20 are connected and fixed in a clamping fit mode through the buckles 21 and the clamping grooves 12, the fixing piece 20 and the rubber frame 10 are fixed in relative positions, and compared with an adhesive tape bonding mode, the consistency of fixing the optical module group is high. The backlight module 100 and the optical film set 30 can be assembled without other tools, so that the assembling efficiency of the optical film set 30 and the backlight module 100 is improved. Meanwhile, the connection strength between the fixing member 20 and the adhesive frame 10 is much higher than that of the conventional adhesive tape bonding, so that the fixing reliability of the optical film group 30 can be improved.
Referring to fig. 3 to fig. 5, in some embodiments of the backlight module 100 of the present application, the fastener 21 is disposed on the fixing member 20, and the slot 12 is disposed on the carrying surface;
the protruding butt portion 13 that is equipped with of groove side wall of draw-in groove 12, butt portion 13 with the tank bottom wall interval of draw-in groove 12 sets up in order to form spacing space, buckle 21 is including protruding elastic arm 211 of locating mounting 20 and locating the pothook 212 of elastic arm 211 free end, pothook 212 is located spacing space and hook locate butt portion 13 orientation a side surface of cell bottom wall.
In this embodiment, the fastener 21 is disposed on a side surface of the fixing element 20 facing the rubber frame 10, and the engaging groove 12 is disposed on the carrying surface. The protruding butt portion 13 that is equipped with of groove side wall of draw-in groove 12, and butt portion 13 sets up with the tank bottom wall interval of draw-in groove 12 and forms spacing space, buckle 21 is including protruding elastic arm 211 of locating the mounting 20 surface and the pothook 212 of locating the elastic arm 211 tip, when buckle 21 and draw-in groove 12 joint cooperation, pothook 212 is inserted and is located spacing space to a lateral surface of the orientation groove diapire of butt portion 13 is located in the hook, thereby can avoid the mounting 20 to deviate from draw-in groove 12 along the degree of depth direction of draw-in groove 12.
Referring to fig. 3, in some embodiments of the backlight module 100 of the present application, a first guiding inclined surface 14 is disposed on a side of the abutting portion 13 away from the bottom wall of the slot to guide the hook 212 into the limiting space.
In the technical solution of the foregoing embodiment, the buckle 21 includes the elastic arm 211 and the hook 212 connected to each other, and when the fixing member 20 is fixed to the rubber frame 10 to press the hanging lug 31 into the limiting groove 11, the elastic arm 211 is elastically deformed and bent in a direction away from the abutting portion 13, so that the hook 212 can avoid the abutting portion 13 and enter the limiting space. In this embodiment, the first guiding inclined plane 14 is disposed on the side of the abutting portion 13 away from the bottom wall of the groove, and when the hook 212 is ready to enter the limiting space, the hook 212 abuts against the first guiding inclined plane 14, so as to drive the elastic arm 211 to deform in the pressing process, so as to guide the hook 212 to enter the limiting space, thereby preventing the hook 212 from being blocked by the abutting portion 13 and being unable to enter the limiting space, and making the process of the hook 212 entering the limiting space smoother, thereby improving the installation convenience.
Referring to fig. 3, in some embodiments of the backlight module 100 of the present application, the hook 212 is provided with a second guiding inclined surface 214 to guide the hook 212 into the limiting space.
Similarly, when the hook 212 enters the spacing space through the abutting portion 13, the second guiding inclined surface 214 of the hook 212 is in abutting fit with the abutting portion 13, so that the elastic arm 211 is driven to deform to drive the hook 212 to move in the direction away from the abutting portion 13 in the inserting process of the hook 212, and the hook 212 can avoid the abutting portion 13 to enter the spacing space, so that the process that the hook 212 enters the spacing space is smoother, and the installation convenience is improved.
Referring to fig. 3, in some embodiments of the backlight module 100 of the present application, the buckle 21 further includes a positioning boss 213 protruding from the fixing member 20, the elastic arm 211 is protruding from a side surface of the positioning boss 213 facing away from the fixing member 20, the bearing surface has a positioning groove 15, the clamping groove 12 is disposed on a bottom wall of the positioning groove 15, and the positioning boss 213 is limited to the positioning groove 15.
According to the technical scheme, the fixing piece 20 is fixedly connected with the rubber frame 10 through the clamping matching of the buckle 21 and the clamping groove 12. It is understood that, the buckle 21 on the fixing member 20 is clamped in the clamping groove 12 of the rubber frame 10 and the hook 212 enters the limiting space, so that the abutting portion 13 and the groove side wall of the clamping groove 12 are spaced to form an opening for the hook 212 to enter and exit, but the buckle 21 can translate at the opening after the hook 212 enters the limiting space, so that there is a risk that the buckle 21 falls off from the clamping groove 12. In this embodiment, the surface of the fixing member 20 facing the limiting groove 11 is convexly provided with the positioning boss 213, the elastic arm 211 of the buckle 21 is convexly provided on a side surface of the positioning boss 213 departing from the fixing member 20, the positioning groove 15 is provided on the carrying surface, and the positioning boss 213 is clamped in the positioning groove 15, so as to be disposed, by the arrangement of the positioning boss 213 and the positioning groove 15, the horizontal limiting constraint of the fixing member 20 is achieved, and the situation that the buckle 21 is separated from the clamping groove 12 due to the movement of the fixing member 20 in the horizontal direction after the hook 212 enters the limiting space is avoided, so as to improve the connection stability between the fixing member 20 and the rubber frame 10.
Referring to fig. 4 and 5, in some embodiments of the backlight module 100 of the present application, the carrying surface is provided with two engaging grooves 12, the two engaging grooves 12 are respectively disposed on two sides of the limiting groove 11, the fixing member 20 is provided with two engaging buckles 21, and each engaging buckle 21 is engaged with one engaging groove 12.
In this embodiment, a set of fasteners 21 and a set of slots 12 are respectively disposed on two sides of the limiting slot 11 to improve the connection strength between the fixing member 20 and the slots 12, and improve the structural stability of the backlight module 100.
Referring to fig. 5, in some embodiments of the backlight module 100 of the present application, the hooks 212 of the two buckles 21 are disposed oppositely or back to back.
According to the technical scheme of the embodiment, the two sides of the limiting groove 11 are respectively provided with the group of buckles 21 and the clamping groove 12, so that the connection stability of the fixing piece 20 and the rubber frame 10 is improved. It is understood that, the buckle 21 on the fixing member 20 is clamped in the clamping groove 12 of the rubber frame 10 and the hook 212 enters the limiting space, so that the clamping groove 12 needs to have an opening for the hook 212 to enter and exit the limiting space, but the buckle 21 can be translated at the opening after the hook 212 enters the limiting space, if the hooks 212 of the two buckles 21 face the same direction, when the fixing member 20 translates in one direction, there is a risk that the buckle 21 falls off from the clamping groove 12. In this embodiment, the hooks 212 of the two buckles 21 on the fixing member 20 are oppositely disposed or oppositely disposed, so that the two buckles 21 are always blocked by the abutting portion 13 and cannot move horizontally, thereby preventing the hooks 212 from coming out of the limiting space, and improving the connection stability between the fixing member 20 and the rubber frame 10.
Referring to fig. 2 and fig. 6, in some embodiments of the backlight module 100 of the present application, a positioning hole 16 is formed at a bottom of the limiting groove 11, a connecting hole 32 is formed in the hanging lug 31, the connecting hole 32 is disposed opposite to the positioning hole 16, a positioning post 22 is protruded from a surface of the fixing member 20 facing the limiting groove 11, the positioning post 22 and the buckle 21 are disposed at an interval, and the positioning post 22 is inserted into the connecting hole 32 and the positioning hole 16.
According to the technical scheme, the hanging lug 31 of the optical film group 30 is pressed in the limiting groove 11 of the rubber frame 10 through the fixing piece 20, so that the optical film group 30 and the backlight module 100 are fixed. In this embodiment, a positioning hole 16 is formed in the bottom wall of the limiting groove 11, a positioning post 22 is protruded on the surface of the fixing member 20 facing the limiting groove 11, and a connecting hole 32 opposite to the positioning hole 16 needs to be formed in the hanging lug 31 of the optical film set 30; with this arrangement, when the fixing member 20 is fixed to the rubber frame 10 to press the hanging lug 31 into the limiting groove 11, the positioning hole 16 on the fixing member 20 can penetrate through the connecting hole 32 on the hanging lug 31 and the positioning hole 16 on the rubber frame 10, so as to apply a limiting constraint to the hanging lug 31 in the horizontal direction, thereby preventing the optical diaphragm group 30 from moving in the horizontal direction when the size of the hanging lug 31 is smaller than that of the limiting groove 11.
Further, in a conventional backlight module, the optical film group 30 includes a plurality of stacked optical films, such as a polarizer, a reflective film, an antireflection film, a filter film, or an optical protection film, each optical film is provided with a hanging lug 31, and the hanging lugs 31 of the plurality of optical films are stacked to form the hanging lug 31 of the optical film group 30, but if only the fixing member 20 is adopted to press the hanging lug 31 of the optical film group 30, the hanging lug 31 not directly contacting with the fixing member 20 is still in an under-positioned state, and is easily shaken on a horizontal plane or separated from the limiting groove 11. In this embodiment, the positioning column 22 is additionally disposed on the fixing member 20, and the positioning column 22 is disposed through the connecting hole 32 on the hanging lug 31, so that a horizontal limiting constraint is applied to each optical film in the optical film group 30, thereby achieving effective positioning of the optical film group 30, and further improving the structural stability of the backlight module.
Referring to fig. 2, in some embodiments of the backlight module 100 of the present application, the carrying surface is provided with a sunken groove 17, the limiting groove 11 is provided at a bottom of the sunken groove 17, and the fixing member 20 is limited in the sunken groove 17.
According to the backlight module 100, the hanging lug 31 of the optical film set 30 is pressed in the limiting groove 11 of the rubber frame 10 through the fixing piece 20, and the fixing piece 20 is connected with the rubber frame 10 through the buckle 21. In this embodiment, the carrying surface of the rubber frame 10 is provided with a sinking groove 17, at this time, the limiting groove 11 is provided at the bottom of the sinking groove 17, and when the fixing member 20 is fixed to the rubber frame 10 to press the hanging lug 31 of the optical film set 30 into the limiting groove 11, the fixing member 20 is fixed in the clamping groove 12 to limit the fixing member 20, thereby improving the structural stability of the backlight module 100; meanwhile, the arrangement of the sinking groove 17 can prevent the fixing member 20 from protruding out of the surface of the rubber frame 10, reduce the damage risk of the fixing member 20, and reduce the thickness of the backlight module 100, thereby reducing the thickness of the backlight module and the display device and realizing the lightness and thinness.
In some embodiments of the backlight module 100 of the present application, the groove depth of the sinking groove 17 is h, and satisfies 0.25mm ≦ h ≦ 0.55 mm.
It can be understood that, when the thickness of the backlight module 100 is constant, if the depth of the sunken groove 17 is too deep, the structural strength of the rubber frame 10 at the sunken groove 17 is easily low, but if the depth of the sunken groove 17 is too low, the thickness of the correspondingly disposed fixing member 20 is too small, the structural strength of the fixing member 20 is low. In this embodiment, the groove depth h of the sinking groove 17 is 0.25mm or less and h is 0.55mm or less, wherein h may be but not limited to 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm or 0.55mm, so as to ensure that the glue frame 10 and the fixing member 20 have high structural strength and are not easily damaged, and the optical film group 30 can be stably fixed, thereby improving the connection stability.
In some embodiments of the backlight module 100 of the present application, the fixing member 20 is made of plastic.
According to the technical scheme, the hanging lug 31 of the optical film group 30 is pressed in the limiting groove 11 of the rubber frame 10 through the fixing piece 20. However, the optical film has a large expansion coefficient, and when the display works, the optical film is easy to bulge due to thermal expansion of the optical film, so that poor subjective shadow is caused. In this embodiment, the fixing member 20 is made of plastic, and the thermal expansion coefficient of the plastic is small, so that the optical film assembly 30 can be effectively pressed in the limiting groove 11, and the optical film assembly 30 is prevented from bulging, thereby preventing the phenomenon of poor subjective shadow.
The present application further provides a display device, which is mostly a liquid crystal display device, and includes a display panel and the backlight module described in any of the foregoing embodiments, and the specific structure of the backlight module refers to the foregoing embodiments, which are not described herein again.
The above description is only a preferred embodiment of the present application, and not intended to limit the scope of the present application, and all modifications and equivalents of the technical solutions that can be directly or indirectly applied to other related fields without departing from the spirit of the present application are intended to be included in the scope of the present application.
Claims (10)
1. A backlight module is characterized in that the backlight module comprises:
the bearing surface of the rubber frame is provided with a limit groove;
the edge of the optical diaphragm group is provided with a hanging lug, and the hanging lug is arranged in the limiting groove; and
the fixing piece is pressed on the bearing surface and is arranged opposite to the limiting groove;
the fixing piece is provided with one of a buckle and a clamping groove, the rubber frame is provided with the other of the buckle and the clamping groove, and the buckle is in clamping fit with the clamping groove.
2. The backlight module as claimed in claim 1, wherein the clip is disposed on the fixing member, and the engaging groove is disposed on the carrying surface;
the protruding butt portion that is equipped with of groove lateral wall of draw-in groove, butt portion with the tank bottom wall interval of draw-in groove sets up in order to form spacing space, the buckle is including protruding elastic arm of locating the mounting and locating the pothook of elastic arm free end, the pothook is located spacing space is hooked and is located the orientation of butt portion a side surface of groove diapire.
3. The backlight module according to claim 2, wherein a side of the abutting portion facing away from the bottom wall of the slot is provided with a first guiding inclined surface for guiding the hook into the spacing space;
and/or the clamping hook is provided with a second guide inclined surface so as to guide the clamping hook to enter the limiting space.
4. The backlight module as claimed in claim 2, wherein the carrying surface has a positioning groove, the engaging groove is disposed on a bottom wall of the positioning groove, the engaging member further includes a positioning protrusion protruding from the fixing member, the elastic arm protrudes from a side surface of the positioning protrusion facing away from the fixing member, and the positioning protrusion is inserted into the positioning groove.
5. The backlight module as claimed in claim 2, wherein the carrying surface has two engaging grooves respectively disposed at two sides of the limiting groove, and the fixing member has two engaging tabs each engaging with one of the engaging grooves.
6. The backlight module as claimed in claim 5, wherein the hooks of the two fasteners are disposed oppositely or back-to-back.
7. The backlight module as claimed in claim 1, wherein the carrying surface has a recessed groove, the limiting groove is disposed at a bottom of the recessed groove, and the fixing member is limited in the recessed groove.
8. The backlight module as claimed in claim 7, wherein the groove depth of the sinking groove is h, and satisfies 0.25mm ≤ h ≤ 0.55 mm.
9. The backlight module according to any of claims 1 to 8, wherein a positioning hole is formed at a bottom of the position-limiting groove, a connecting hole is formed at the hanging lug, the connecting hole is disposed opposite to the positioning hole, a positioning post is protruded from a surface of the fixing member facing the position-limiting groove, and the positioning post is inserted through the connecting hole and the positioning hole.
10. A display device, characterized in that the display device comprises a backlight module as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111280126.5A CN114035372A (en) | 2021-10-29 | 2021-10-29 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111280126.5A CN114035372A (en) | 2021-10-29 | 2021-10-29 | Backlight module and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114035372A true CN114035372A (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111280126.5A Pending CN114035372A (en) | 2021-10-29 | 2021-10-29 | Backlight module and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859602A (en) * | 2022-04-29 | 2022-08-05 | 威海台基慧显光电有限公司 | Novel positioning structure of backlight module |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201003235A (en) * | 2008-07-10 | 2010-01-16 | Coretronic Suzhou Co Ltd | Detachable fastening assembly |
| CN103148459A (en) * | 2013-03-29 | 2013-06-12 | 深圳市华星光电技术有限公司 | Fastener for fixing optical diaphragm, backlight module and liquid crystal display |
| CN206741153U (en) * | 2017-05-26 | 2017-12-12 | 深圳Tcl新技术有限公司 | Liquid crystal module and display device |
| CN207636886U (en) * | 2017-10-26 | 2018-07-20 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display |
| CN209132554U (en) * | 2018-11-27 | 2019-07-19 | 昆山龙腾光电有限公司 | A kind of backlight module and liquid crystal display |
| CN210573100U (en) * | 2019-09-06 | 2020-05-19 | 深圳市万普拉斯科技有限公司 | Connecting fixing piece, backlight module and liquid crystal display module |
-
2021
- 2021-10-29 CN CN202111280126.5A patent/CN114035372A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201003235A (en) * | 2008-07-10 | 2010-01-16 | Coretronic Suzhou Co Ltd | Detachable fastening assembly |
| CN103148459A (en) * | 2013-03-29 | 2013-06-12 | 深圳市华星光电技术有限公司 | Fastener for fixing optical diaphragm, backlight module and liquid crystal display |
| CN206741153U (en) * | 2017-05-26 | 2017-12-12 | 深圳Tcl新技术有限公司 | Liquid crystal module and display device |
| CN207636886U (en) * | 2017-10-26 | 2018-07-20 | 昆山龙腾光电有限公司 | Backlight module and liquid crystal display |
| CN209132554U (en) * | 2018-11-27 | 2019-07-19 | 昆山龙腾光电有限公司 | A kind of backlight module and liquid crystal display |
| CN210573100U (en) * | 2019-09-06 | 2020-05-19 | 深圳市万普拉斯科技有限公司 | Connecting fixing piece, backlight module and liquid crystal display module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114859602A (en) * | 2022-04-29 | 2022-08-05 | 威海台基慧显光电有限公司 | Novel positioning structure of backlight module |
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