CN111025759A - Back plate, backlight module and display device - Google Patents

Back plate, backlight module and display device Download PDF

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Publication number
CN111025759A
CN111025759A CN201911377285.XA CN201911377285A CN111025759A CN 111025759 A CN111025759 A CN 111025759A CN 201911377285 A CN201911377285 A CN 201911377285A CN 111025759 A CN111025759 A CN 111025759A
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China
Prior art keywords
sub
connection
back plate
holes
hole
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Granted
Application number
CN201911377285.XA
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Chinese (zh)
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CN111025759B (en
Inventor
马雄斌
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Xiamen Tianma Microelectronics Co Ltd
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Xiamen Tianma Microelectronics Co Ltd
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Priority to CN201911377285.XA priority Critical patent/CN111025759B/en
Publication of CN111025759A publication Critical patent/CN111025759A/en
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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
    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Abstract

The invention relates to the technical field of display, in particular to a back plate, a backlight module and a display device, wherein the back plate comprises a body part, a bent part and a boss part, wherein the boss part is arranged in the body part in a protruding mode and is connected to a first end part of the body part through the bent part; the boss part comprises a first bottom surface, a first side surface, a first connecting part and a first connecting hole; the body part comprises a second bottom surface, a second side surface, a second connecting part and a second connecting hole. In the back plate provided by the invention, the first connecting holes are arranged on the first side surface and/or the first bottom surface, and the second connecting holes are arranged on the second side surface and/or the second bottom surface, so that the strength of the body part, the boss part and the bending part is improved, the strength of the back plate is improved, the back plate is effectively prevented from being deformed, the problems of peeling, light leakage and the like of a display device are avoided, the structural stability of the backlight module and the display device is effectively improved, and the service life of the display device is prolonged.

Description

Back plate, backlight module and display device
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of display, in particular to a back plate, a backlight module and a display device.
[ background of the invention ]
The LED with the inverted structure is integrated and produced in batch, has simple preparation process and excellent performance, and gradually gets extensive attention from the display industry.
Including gluing frame and backplate in flip structure's the LED, in order to guarantee flip structure's LED in the backlight flushes with the light guide plate, during the whole entering light guide plates that make the backlight send, the position department that backplate and backlight correspond need set up boss portion. In the prior art, the back plate is provided with a connecting hole, and when the rubber frame is molded, the injection material flows into the connecting hole and solidifies to connect the back plate and the rubber frame, and usually, the connecting hole is arranged at the connecting position of the bottom surface and the side surface of the back plate.
However, due to the arrangement of the connection hole, the strength of the back plate is deteriorated, and the region near the boss portion is easily deformed, so that the boss portion is dislocated, and further, problems of abnormal display such as peeling, light leakage, and the like are caused.
[ summary of the invention ]
In order to solve the above problems, the present invention provides a back plate, a backlight module and a display device.
The utility model provides a be applied to backplate of display module assembly, includes: the connector comprises a body part, a bent part and a boss part, wherein the boss part is arranged in the body part in a protruding mode and is connected to the first end part of the body part through the bent part;
the boss part comprises a first bottom surface, a first side surface and a first connecting part for connecting the first bottom surface and the first side surface, and a first connecting hole is formed in one end, close to the first connecting part, of the first bottom surface and/or the first side surface;
the body part comprises a second bottom surface, a second side surface and a second connecting part for connecting the second bottom surface and the second side surface, the second connecting part is positioned at the first end part, and a second connecting hole is formed in one end, close to the second connecting part, of the second bottom surface and/or the second side surface.
Optionally, the first side surface is provided with at least two first sub-connection holes, and the first bottom surface is provided with at least two second sub-connection holes;
the first sub-connecting holes and the second sub-connecting holes are distributed in a staggered manner; or the like, or, alternatively,
the first sub-connecting holes and the second sub-connecting holes are symmetrically distributed by taking the first connecting parts as symmetry axes.
Optionally, a distance L1 between an edge of the first sub-connection hole close to the first connection portion and an edge of the first connection portion close to the first sub-connection hole ranges from greater than or equal to 0.1mm to less than or equal to 0.3 mm.
Optionally, a distance L2 between an edge of the second sub-connection hole close to the first connection portion and an edge of the first connection portion close to the second sub-connection hole ranges from greater than or equal to 0.1mm to less than or equal to 0.3 mm.
Optionally, at the first end, the second side surface is provided with at least two third sub-connection holes, and the second bottom surface is provided with at least two fourth sub-connection holes;
the third sub-connecting holes and the fourth sub-connecting holes are distributed in a staggered manner; or the like, or, alternatively,
the third sub-connecting holes and the fourth sub-connecting holes are symmetrically distributed by taking the second connecting parts as symmetry axes.
Optionally, a distance L3 between an edge of the third sub-connection hole close to the second connection portion and an edge of the second connection portion close to the third sub-connection hole ranges from 0.1mm to 0.3 mm.
Optionally, a distance L4 between an edge of the fourth sub-connection hole close to the second connection portion and an edge of the second connection portion close to the fourth sub-connection hole ranges from 0.1mm to 0.3 mm.
Optionally, the first connecting portion and the second connecting portion are both arc-shaped structures.
Optionally, a portion of the body portion remote from the boss portion is provided with a plurality of third connection holes.
Optionally, the third connection hole is disposed on the second side surface and/or the second bottom surface.
Optionally, the third connection hole is disposed in the second connection portion.
Optionally, the diameter ranges of the first connection hole, the second connection hole, and the third connection hole are greater than or equal to 0.1mm and less than or equal to 0.4 mm.
Optionally, the bent portion is an arc-shaped structure, and the arc-shaped structure protrudes along a direction in which the first bottom surface points to the first side surface.
Optionally, the body portion, the bent portion and the boss portion are of an integral structure.
The invention also provides a backlight module, which comprises the rubber frame and the back plate;
the rubber frame comprises a plurality of protruding parts, and the protruding parts are matched with the first connecting hole and the second connecting hole respectively to be connected with the back plate.
Optionally, a light reflecting layer and a light guide plate are stacked on one side of the second bottom surface, and the light reflecting layer is disposed on one side of the light guide plate facing the second bottom surface;
and an LED light-emitting device is arranged on one side of the first bottom surface, and a lamp strip used for controlling the LED light-emitting device is arranged between the LED light-emitting device and the first bottom surface.
The invention also provides a display device which comprises the backlight module.
The invention provides a back plate applied to a display module, which comprises a body part, a bent part and a boss part, wherein the boss part is arranged on the body part in a protruding mode and is connected to a first end part of the body part through the bent part.
Because the boss part is arranged on the body part in a protruding mode and connected through the bending part, and the connecting position of the boss part and the bending part, the connecting position of the bending part and the first end part of the body part, the bending part and the connecting position of the bending part and the first end part of the body part are subjected to larger stress, the first connecting hole is arranged on the first side surface and/or the first bottom surface, and the second connecting hole is arranged on the second side surface and/or the second bottom surface, so that the connection of the rubber frame and the back plate is realized, the first connecting hole and the second connecting hole are prevented from being arranged in the first connecting part, the second connecting part and the bending part, and the strength of the first connecting part, the second connecting part and the bending part is reduced, namely, the first connecting hole is arranged on the first side surface and/or the first bottom surface, and the second connecting hole is arranged on the second side, the deformation of the back plate is effectively prevented, the problems of peeling, light leakage and the like of the display device are avoided, the structural stability of the backlight module and the display device is effectively improved, and the service life of the display device is prolonged.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a backplane according to an embodiment of the present invention;
FIG. 2 is a front view of a back plate provided by an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a bottom view of a backing plate provided by an embodiment of the present invention;
FIG. 5 is a partial enlarged view at B in FIG. 4;
fig. 6 is a schematic structural diagram of a backlight module according to an embodiment of the invention.
Reference numerals:
10-a back plate; 1-a body portion; 11-a second bottom surface; 12-a second side; 13-a second connection; 14-a second connection hole; 141-third sub-connection hole; 142-a fourth sub-connection hole; 2-bending part; 3-a boss portion; 31-a first bottom surface; 32-a first side; 33-a first connection; 34-a first connection hole; 341-first sub-connection hole; 342-a second sub-connection hole; 20-a light bar; 30-an LED light emitting device; 40-a light guide plate; 50-a light reflecting layer.
[ detailed description ] embodiments
For better understanding of the technical solutions of the present invention, the following detailed descriptions of the embodiments of the present invention are provided with reference to the accompanying drawings.
It should be understood that the described embodiments are only some embodiments of the invention, and not all 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 invention.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
The display device with the flip structure is integrated and produced in batch, has simple preparation process and excellent performance, and gradually gets extensive attention from the display industry.
Including gluing frame and backplate in flip-chip structure's display device, in order to guarantee that the backlight flushes with the light guide plate among the display device of flip-chip structure, during the whole entering light guide plates that make the backlight send, the position department that backplate and backlight correspond need set up boss portion. In the prior art, the back plate is provided with a connecting hole, and when the rubber frame is molded, the injection material flows into the connecting hole and solidifies to connect the back plate and the rubber frame, and usually, the connecting hole is arranged at the connecting position of the bottom surface and the side surface of the back plate.
However, due to the arrangement of the connection hole, the strength of the back plate is deteriorated, and the region near the boss portion is easily deformed, so that the boss portion is dislocated, and further, problems of abnormal display such as peeling, light leakage, and the like are caused.
In view of the above, embodiments of the present application provide a backlight module and a display device, which can solve the above technical problems.
Fig. 1 is a schematic structural diagram of a backplane 10 according to an embodiment of the present invention, and as shown in fig. 1, in an embodiment of the present invention, a backplane 10 applied to a display module is provided, including: the foldable socket comprises a main body part 1, a bent part 2 and a boss part 3, wherein the boss part 3 is arranged on the main body part 1 in a protruding mode and is connected to a first end part of the main body part 1 through the bent part 2; the boss portion 3 includes a first bottom surface 31, a first side surface 32, and a first connecting portion 33 for connecting the first bottom surface 31 and the first side surface 32, and a first connecting hole 34 is provided at one end of the first bottom surface 31 and/or the first side surface 32 close to the first connecting portion 33; the body portion 1 includes a second bottom surface 11, a second side surface 12, and a second connecting portion 13 for connecting the second bottom surface 11 and the second side surface 12, and at a first end portion, a second connecting hole 14 is provided at an end of the second bottom surface 11 and/or the second side surface 12 near the second connecting portion 13.
The back plate 10 applied to a display module provided by the embodiment of the present invention includes a body portion 1, a bending portion 2 and a boss portion 3, the boss portion 3 is protruded from the body portion 1 and connected to a first end portion of the body portion 1 through the bending portion 2, because a rubber frame needs to be arranged on one side of the back plate 10 and connected to the back plate 10, in the embodiment, at least one of a first side surface 32 and a first bottom surface 31 is provided with a first connection hole 34, and at least one of a second side surface 12 and a second bottom surface 11 is provided with a second connection hole 14, and the rubber frame is connected to the back plate 10 through the first connection hole 34 and the second connection hole 14.
Since the boss portion 3 is protruded from the body portion 1 and connected by the bent portion 2, and the connection position of the boss portion 3 and the bent portion 2, and the connection position of the bent portion 2 and the first end portion of the body portion 1 are subjected to a large stress, the connection of the bezel and the back plate 10 is achieved by disposing the first connection hole 34 in the first side surface 32 and/or the first bottom surface 31 and the second connection hole 14 in the second side surface 12 and/or the second bottom surface 11, so as to avoid the strength reduction of the first connection portion 33, the second connection portion 13 and the bent portion 2 caused by disposing the first connection hole 34 and the second connection hole 14 in the first connection portion 33, the second connection portion 13 and the bent portion 2, that is, disposing the first connection hole 34 in the first side surface 32 and/or the first bottom surface 31 and disposing the second connection hole 14 in the second side surface 12 and/or the second bottom surface 11, the strength of the body part 1, the boss part 3 and the bending part 2 is improved, so that the strength of the back plate 10 is improved, the back plate 10 is effectively prevented from deforming, the problems of peeling, light leakage and the like of the display device are avoided, the structural stability of the backlight module and the display device is effectively improved, and the service life of the display device is prolonged.
In some embodiments, the first side surface 32 is provided with at least two first sub-connection holes 341, and the first bottom surface 31 is provided with at least two second sub-connection holes 342; the first sub-connecting holes and the second sub-connecting holes are distributed in a staggered mode.
In other embodiments, the first sub-connection holes 341 and the second sub-connection holes 342 are symmetrically distributed with the first connection portion 33 as a symmetry axis.
In the embodiment of the present application, the first side surface 32 and the first bottom surface 31 are both provided with the first connection hole 34, so as to improve the stability of the connection between the rubber frame and the back plate 10. Specifically, the first side surface 32 is provided with at least two first sub-connection holes 341, the first bottom surface 31 is provided with at least two second sub-connection holes 342, and the first sub-connection holes 341 and the second sub-connection holes 342 are symmetrically arranged or staggered with respect to the first connection portions 33, so as to ensure that the rubber frame is smoothly arranged in the back plate 10.
Fig. 2 is a front view of the back plate 10 according to the embodiment of the present invention, and fig. 3 is a partial enlarged view of a position a in fig. 2, and as shown in fig. 2 to 3, a distance L1 between an edge of the first sub-connection hole 341 close to the first connection portion 33 and an edge of the first connection portion 33 close to the first sub-connection hole 341 ranges from 0.1mm to 0.3 mm.
That is, the range of the minimum distance between the edge of the first sub-connection hole 341 and the first connection part 33 is greater than or equal to 0.1mm and less than or equal to 0.3 mm.
On one hand, the range of the minimum distance between the edge of the first sub-connection hole 341 and the first connection portion 33 is set to be greater than or equal to 0.1mm, so that the first sub-connection hole 341 and the first connection portion 33 have an appropriate distance therebetween to prevent the setting of the first sub-connection hole 341 from lowering the strength of the first connection portion 33.
On the other hand, because the first side surface 32 is smaller than 0.7mm in size along the direction in which the first bottom surface 31 points to the first side surface 32, if the distance between the edge of the first sub-connection hole 341 and the first connection portion 33 is set to be greater than 0.3mm, the effective area in the first side surface 32, in which the hole can be formed, is smaller, so that the difficulty in preparing the first sub-connection hole 341 is greater, and the diameter of the formed first sub-connection hole 341 is too small, in the injection molding process of the rubber frame, the liquid injection molding material is not easy to flow out of the back plate through the first sub-connection hole 341. Therefore, the diameter of the first sub-connection hole 341 sets the minimum distance between the edge of the first sub-connection hole 341 and the first connection portion 33 to be less than or equal to 0.3mm, so as to reduce the difficulty of preparing the first sub-connection hole 341 on the first side surface 32, and reduce the difficulty of the liquid injection molding material flowing out of the back plate 10 through the first sub-connection hole 341 in the injection molding process of the plastic frame.
Fig. 4 is a bottom view of the back plate 10 according to the embodiment of the present invention, and fig. 5 is a partial enlarged view of B in fig. 4, and as shown in fig. 4 to 5, a distance L2 between an edge of the second sub-connection hole 342 close to the first connection portion 33 and an edge of the first connection portion 33 close to the second sub-connection hole 342 ranges from 0.1mm to 0.3 mm.
That is, the range of the minimum distance between the edge of the second sub-connection hole 342 and the first connection portion 33 is greater than or equal to 0.1mm and less than or equal to 0.3 mm. The distance L1 between the first sub-connecting hole 341 and the first connecting portion 33 may be the same as or different from the distance L2 between the second sub-connecting hole 342 and the first connecting portion 33, and is not limited herein.
In some embodiments, at the first end of the body portion 1, the second side 12 is provided with at least two third sub-connection holes 141, and the second bottom 11 is provided with at least two fourth sub-connection holes 142; the third sub-connecting holes and the fourth sub-connecting holes are distributed in a staggered mode.
In other embodiments, the third sub-connection hole 141 and the fourth sub-connection hole 142 are symmetrically distributed with the second connection portion 13 as a symmetry axis.
In the embodiment of the present application, the second side surface 12 and the second bottom surface 11 are both provided with a second connection hole 14, so as to improve the stability of the connection between the rubber frame and the back plate 10. Specifically, the second side surface 12 is provided with at least two third sub-connection holes 141, the second bottom surface 11 is provided with at least two fourth sub-connection holes 142, and the third sub-connection holes 141 and the fourth sub-connection holes 142 are symmetrically arranged or staggered with respect to the second connection portion 13, so as to ensure that the rubber frame is smoothly arranged in the back plate 10.
Specifically, a distance L3 between an edge of the third sub-connection hole 141 near the second connection part 13 and an edge of the second connection part 13 near the third sub-connection hole 141 ranges from 0.1mm or more to 0.3mm or less.
That is to say, the range of the minimum distance between the edge of the third sub-connection hole 141 and the second connection portion 13 is greater than or equal to 0.1mm and less than or equal to 0.3mm, so as to ensure that the position where the third sub-connection hole 141 is located is within the preset position of the plastic frame, and ensure that the injection molding material can flow out of the back plate 10 through the third sub-connection hole 141 during the injection molding process of the plastic frame.
A distance L4 between the edge of the fourth sub-connection hole 142 close to the second connection portion 13 and the edge of the second connection portion 13 close to the fourth sub-connection hole 142 is in a range of 0.1mm or more and 0.3mm or less.
That is, the range of the minimum distance between the edge of the fourth sub-connection hole 142 and the second connection part 13 is greater than or equal to 0.1mm and less than or equal to 0.3 mm. The distance L1 between the first sub-connection hole 341 and the first connection portion 33, the distance L2 between the second sub-connection hole 342 and the first connection portion 33, the distance L3 between the third sub-connection hole 141 and the second connection portion 13, and the distance L4 between the fourth sub-connection hole 142 and the second connection portion 13 may be the same or different, and are not limited herein.
As a possible implementation, the first connection portion 33 and the second connection portion 13 are both arc-shaped structures.
The first connecting portion 33 and the second connecting portion 13 are both arc-shaped structures, so as to connect the first side surface 32 and the first bottom surface 31 in an arc shape, and effectively avoid stress concentration at the connecting position of the first side surface 32 and the first bottom surface 31, that is, stress concentration at the position of the first connecting portion 33 is avoided, so that the strength of the boss portion 3 is improved, and the service life of the boss portion 3 is prolonged.
In some embodiments, a portion of the body portion 1 remote from the boss portion 3 may be provided with a plurality of third connection holes.
Through setting up the third connecting hole to glue frame and first connecting hole 34, second connecting hole 14 and third connecting hole and be connected, increased the quantity of hookup location between gluey frame and backplate 10, further improved the stability of being connected between gluey frame and the backplate 10, effectively prevent to glue and take place to break away from between frame and the backplate 10.
In some embodiments, the third connection hole is disposed on the second side surface 12 and/or the second bottom surface 11.
In other embodiments, a third connection hole is provided in the second connection portion 13.
The third connecting hole is disposed on a portion of the main body 1 away from the boss portion 3, and the portion is uniformly stressed and is not easily deformed and damaged, so that the strength requirement of the portion is low, and therefore, the third connecting hole may be disposed on the second side surface 12 and/or the second bottom surface 11, or may be disposed on the second connecting portion 13. In order to reduce the number of processes and the manufacturing difficulty, the third connection hole may be disposed only in the second connection portion 13 to connect the rubber frame and the back plate 10.
As shown in fig. 3 to 5, in some embodiments, the diameter d1 of the first connection hole 34, the diameter d2 of the second connection hole 14, and the diameter d3 of the third connection hole range from greater than or equal to 0.1mm to less than or equal to 0.4 mm.
The range of the diameter d1 of the first connecting hole 34, the diameter d2 of the second connecting hole 14 and the diameter d3 of the third connecting hole is greater than or equal to 0.1mm and less than or equal to 0.4mm, the diameters of the first connecting hole 34, the second connecting hole 14 and the third connecting hole are set within the range of 0.1mm to 0.4mm, it is ensured that in the injection molding process of the rubber frame, injection-molded liquid can flow out of the back plate 10 through the first connecting hole 34, the second connecting hole 14 and the third connecting hole, meanwhile, the influence of the strength of the back plate 10 caused by the arrangement of the first connecting hole 34, the second connecting hole 14 and the third connecting hole is reduced, the back plate 10 has high strength, and the service life of the display device is prolonged.
In the embodiment of the present application, the diameter d1 of the first connection hole 34, the diameter d2 of the second connection hole 14, and the diameter d3 of the third connection hole may be the same or different, and are not limited herein.
As a possible implementation, the bent portion 2 has an arc-shaped structure, and the arc-shaped structure protrudes along the first bottom surface 31 in a direction toward the first side surface 32.
Because boss portion 3 is protruding in the first end of this somatic part 1, and through kink 2 with the tip of boss portion 3 and the first end connection of this somatic part 1, in order to reduce the stress that kink 2 department received, kink 2 sets up to the arc structure, and the one end of kink 2 is connected with boss portion 3 arc, the other end is connected with the first end arc of this somatic part 1, boss portion 3 and kink 2's hookup location department has effectively been avoided, kink 2, and kink 2 and the hookup location department of this somatic part 1 produce stress concentration, the damage probability of backplate 10 has been reduced, the life of backplate 10 has been improved.
In the embodiment of the present application, the body portion 1, the bent portion 2, and the boss portion 3 are of an integrated structure. That is, the body portion 1, the bent portion 2, and the boss portion 3 may be integrally formed by punching, and the first side surface 32 and the second side surface 12 may be located in the same plane.
By arranging the body portion 1, the bent portion 2 and the boss portion 3 as an integrated structure, the structural integrity of the back plate 10 is ensured, and the structural stability of the back plate 10 is improved.
In addition, the back plate 10 is prepared by a stamping process, the method is simple and easy to operate, and the preparation cost and the preparation time can be effectively reduced.
The embodiment of the invention also provides a backlight module, which comprises a rubber frame and the back plate 10; the rubber frame comprises a plurality of protruding parts which are respectively matched with the first connecting hole 34 and the second connecting hole 14 so as to be connected with the back plate 10.
Above-mentioned glue including a plurality of bellyings in the frame, bellyings and first connecting hole 34 and the cooperation of second connecting hole 14 to realize being connected of frame and backplate 10, simple structure, and can dismantle.
Above-mentioned bellying is through moulding plastics and forms, when moulding plastics in backplate 10, the liquid material of moulding plastics accessible first connecting hole 34 and second connecting hole 14 flow out to the backplate 10 outside, after the material cooling solidification of moulding plastics, the material of moulding plastics that flows out to the backplate 10 outside forms above-mentioned arch, and because mould plastics in backplate 10, the material of moulding plastics after the solidification bonds with backplate 10, promptly, above-mentioned arch passes first connecting hole 34 and second connecting hole 14 and backplate 10 joint, and simultaneously, bond with backplate 10, the joint strength between gluey frame and backplate 10 has effectively been improved.
Fig. 6 is a schematic structural diagram of a backlight module according to an embodiment of the present invention, and as shown in fig. 6, a flip-chip display device with light entering from a side surface is taken as an example, at this time, a reflective layer 50 and a light guide plate 40 are stacked on one side of the second bottom surface 11, and the reflective layer 50 is disposed on one side of the light guide plate 40 facing the second bottom surface 11;
the LED light-emitting device 30 is arranged on one side of the first bottom surface 31, the light bar 20 used for controlling the LED light-emitting device 30 is arranged between the LED light-emitting device 30 and the first bottom surface 31, the light bar 20 is electrically connected with the LED light-emitting device 30 and located below the light guide plate 40, and the light bar 20 is a flexible light bar.
The light enters the light guide plate 40 through the peripheral side surface of the light guide plate 40, i.e., the LED light emitting devices 30 are disposed on the peripheral side of the light guide plate 40. In order to make the light emitting direction in the light guide plate 40 and the light emitting direction of the display device tend to be consistent, the light reflecting layer 50 is disposed between the light guide plate 40 and the second bottom surface 11 to reflect the light emitted to the light reflecting layer 50 to the light emitting side of the display device, so as to improve the utilization rate of the light and improve the brightness of the display device.
Moreover, by arranging the boss portion 3 in the back plate 10, it is ensured that the LED light emitting device 30 and the light guide plate 40 are approximately flush, so that the light emitted by the LED light emitting device 30 is totally incident into the light guide plate 40, thereby improving the utilization rate of the light and improving the brightness of the display panel.
The embodiment of the invention provides a display device which comprises the backlight module.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (17)

1. The utility model provides a be applied to display module assembly's backplate which characterized in that includes: the connector comprises a body part, a bent part and a boss part, wherein the boss part is arranged in the body part in a protruding mode and is connected to the first end part of the body part through the bent part;
the boss part comprises a first bottom surface, a first side surface and a first connecting part for connecting the first bottom surface and the first side surface, and a first connecting hole is formed in one end, close to the first connecting part, of the first bottom surface and/or the first side surface;
the body part comprises a second bottom surface, a second side surface and a second connecting part for connecting the second bottom surface and the second side surface, the second connecting part is positioned at the first end part, and a second connecting hole is formed in one end, close to the second connecting part, of the second bottom surface and/or the second side surface.
2. The back plate as claimed in claim 1, wherein the first side surface is provided with at least two first sub-connection holes, and the first bottom surface is provided with at least two second sub-connection holes;
the first sub-connecting holes and the second sub-connecting holes are distributed in a staggered manner; or the like, or, alternatively,
the first sub-connecting holes and the second sub-connecting holes are symmetrically distributed by taking the first connecting parts as symmetry axes.
3. The back plate according to claim 2, wherein a distance L1 between an edge of the first sub-connection hole close to the first connection portion and an edge of the first connection portion close to the first sub-connection hole ranges from 0.1mm or more to 0.3mm or less.
4. The back plate according to claim 2, wherein a distance L2 between an edge of the second sub-connection hole close to the first connection portion and an edge of the first connection portion close to the second sub-connection hole ranges from 0.1mm or more to 0.3mm or less.
5. A back plate according to any one of claims 1 or 2, wherein at the first end, the second side face is provided with at least two third sub-connection holes, and the second bottom face is provided with at least two fourth sub-connection holes;
the third sub-connecting holes and the fourth sub-connecting holes are distributed in a staggered manner; or the like, or, alternatively,
the third sub-connecting holes and the fourth sub-connecting holes are symmetrically distributed by taking the second connecting parts as symmetry axes.
6. The back plate as claimed in claim 5, wherein a distance L3 between an edge of the third sub-connection hole close to the second connection part and an edge of the second connection part close to the third sub-connection hole ranges from 0.1mm or more to 0.3mm or less.
7. The back plate as claimed in claim 5, wherein a distance L4 between an edge of the fourth sub-connection hole near the second connection part and an edge of the second connection part near the fourth sub-connection hole ranges from 0.1mm or more to 0.3mm or less.
8. The back plate of claim 1, wherein the first connection portion and the second connection portion are both arc-shaped structures.
9. A backboard according to claim 1, wherein the portion of the body portion remote from the boss portion is provided with a plurality of third connecting holes.
10. A backplate according to claim 9 in which the third connection holes are provided in the second side and/or second base.
11. A backboard according to claim 9, wherein the third connecting hole is provided in the second connecting portion.
12. A backplate according to claim 9 in which the first, second and third connection holes have a diameter in the range of greater than or equal to 0.1mm and less than or equal to 0.4 mm.
13. The back plate according to claim 1, wherein the bent portion is an arc-shaped structure, and the arc-shaped structure protrudes along the direction of the first bottom surface toward the first side surface.
14. A backboard according to claim 1, wherein the body portion, the bent portion and the boss portion are of a unitary construction.
15. A backlight module comprising a rubber frame and the back plate of any one of claims 1 to 14;
the rubber frame comprises a plurality of protruding parts, and the protruding parts are matched with the first connecting hole and the second connecting hole respectively to be connected with the back plate.
16. The backlight module according to claim 15, wherein a light reflecting layer and a light guide plate are stacked on one side of the second bottom surface, and the light reflecting layer is disposed on one side of the light guide plate facing the second bottom surface;
and an LED light-emitting device is arranged on one side of the first bottom surface, and a lamp strip used for controlling the LED light-emitting device is arranged between the LED light-emitting device and the first bottom surface.
17. A display device comprising a backlight module according to any one of claims 15-16.
CN201911377285.XA 2019-12-27 2019-12-27 Back plate, backlight module and display device Active CN111025759B (en)

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CN104896385A (en) * 2015-06-30 2015-09-09 京东方光科技有限公司 Display panel, backlight source, back plate of backlight source and integral cementite structure of backlight source
CN207587285U (en) * 2017-12-06 2018-07-06 武汉恒生光电产业有限公司 A kind of center for display device and the modular structure using the center
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CN102679285A (en) * 2012-05-30 2012-09-19 深圳市华星光电技术有限公司 Display device, backlight module and frame unit
CN203787043U (en) * 2014-04-12 2014-08-20 深圳市隆利科技发展有限公司 Bottom plate connection anti-bending structure of LED display screen
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