CN109633982B - Backlight module, display module and electronic equipment - Google Patents
Backlight module, display module and electronic equipment Download PDFInfo
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- CN109633982B CN109633982B CN201910122792.2A CN201910122792A CN109633982B CN 109633982 B CN109633982 B CN 109633982B CN 201910122792 A CN201910122792 A CN 201910122792A CN 109633982 B CN109633982 B CN 109633982B
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- back plate
- plate assembly
- backboard component
- glue injection
- glue
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 21
- 239000004020 conductor Substances 0.000 claims abstract description 8
- 239000012212 insulator Substances 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 95
- 238000002347 injection Methods 0.000 claims description 65
- 239000007924 injection Substances 0.000 claims description 65
- 230000005684 electric field Effects 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 12
- 229910052742 iron Inorganic materials 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
Images
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
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
-
- 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
- G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
- G02F1/133314—Back frames
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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)
- Liquid Crystal (AREA)
Abstract
The invention discloses a backlight source module, a display module and electronic equipment, and relates to the technical field of electronic display equipment. The main technical scheme of the invention is as follows: a backlight module comprises a first backboard component, a second backboard component and a third backboard component, wherein the first backboard component is of a plate-shaped conductor structure; the second back plate assembly is a circumferential closed insulator frame and is arranged around the circumferential periphery of the first back plate assembly; the third back plate assembly is of a circumferentially closed conductor frame structure and is arranged around the circumferential periphery of the second back plate assembly; the third back plate assembly is electrically connected with the flexible circuit board and the liquid crystal display and is arranged in common; the first back plate assembly and the third back plate assembly are relatively independent, and when the liquid crystal display works, an electric field cannot be formed between the first back plate assembly and the liquid crystal display, so that the screen is effectively prevented from being howled, and the user experience is improved.
Description
Technical Field
The invention relates to the technical field of electronic display equipment, in particular to a backlight source module, a display module and electronic equipment.
Background
The backlight source is a light source positioned at the back of the liquid crystal display and is an extremely important part in the electronic display device; the backlight source mainly comprises a light source, a light guide plate, an optical die sheet and a structural assembly, wherein a back plate and a rubber frame are indispensable in the structural assembly.
Generally, the back plate is an iron frame, the flexible circuit board (FPC) and the Liquid Crystal Display (LCD) are adhered to the iron frame through the conductive adhesive, the flexible circuit board (FPC), the Liquid Crystal Display (LCD) and the back plate iron frame are grounded together, when the Liquid Crystal Display (LCD) is lightened, an electric field is formed between the Thin Film Transistor (TFT) and the back plate iron frame, pressure difference exists between the Thin Film Transistor (TFT) and the back plate iron frame, self-oscillation can occur, namely, screen squeal is generated, and user experience is seriously affected.
Disclosure of Invention
In view of this, embodiments of the present invention provide a backlight module, a display module and an electronic device, and mainly aim to solve the problem of screen scream caused by common grounding of a flexible circuit board, a liquid crystal display and a back plate bezel in the electronic device.
In order to achieve the purpose, the invention mainly provides the following technical scheme:
in one aspect, an embodiment of the present invention provides a backlight module, which includes:
the first backboard component is of a plate-shaped conductor structure;
the second back plate assembly is a circumferential closed insulator frame and is arranged around the circumferential periphery of the first back plate assembly;
the third back plate assembly is of a circumferential closed conductor frame structure and is arranged around the circumferential periphery of the second back plate assembly;
the third back plate assembly is electrically connected with the flexible circuit board and the liquid crystal display and is arranged in common.
The purpose and the technical problem to be solved can be further realized by adopting the following technical measures;
optionally, in the backlight module, shapes and cross-sectional shapes of the first backplane assembly, the second backplane assembly and the third backplane assembly are matched.
Optionally, in the backlight module, a connection structure is disposed at a circumferential edge of the second backplane assembly, and the first backplane assembly is in fastening connection with the second backplane assembly through the connection structure;
the third backboard component is buckled at the periphery of the connecting structure of the second backboard component.
Optionally, in the backlight module, at least two opposite edges of the first backplane assembly are provided with glue injection portions;
the second backboard component comprises a glue injection part, a first containing groove and a second containing groove, wherein the glue injection part is arranged at the first containing groove;
and the second containing grooves are arranged on at least two opposite edges of the second back plate assembly and used for containing the first containing grooves, wherein the first containing grooves of the second back plate assembly are buckled with the second containing grooves of the third back plate.
Optionally, in the backlight module, a first glue injection hole is formed in the glue injection portion and perpendicular to the surface of the first backplane assembly;
a glue column is arranged in the first accommodating groove, is in matched sleeve joint with the first glue injection hole and is used for buckling and bonding the first back plate assembly and the second back plate assembly;
and a second glue injection hole is formed in the second accommodating groove corresponding to the first glue injection hole and is in matched sleeve joint with the glue column for buckling and bonding the second back plate assembly, the first back plate assembly and the third back plate assembly.
Optionally, in the backlight module, the glue injection portion is disposed outward from the center of the first backplane assembly perpendicular to the edge of the first backplane assembly.
Optionally, the backlight module further includes a connecting glue column;
the connecting rubber columns are arranged between the adjacent first accommodating grooves and are arranged outwards along the center of the second backboard component and perpendicular to the edge of the second backboard component;
and a third glue injection hole is formed in the second accommodating groove corresponding to the connecting glue column and is in matched sleeve joint with the connecting glue column, and the third glue injection hole is used for accommodating the connecting glue column and bonding the second back plate assembly and the third back plate assembly.
Optionally, in the backlight module, the cross sections of the glue injection portion, the glue column and the connecting glue column are polygonal structures.
On one hand, the embodiment of the invention also provides a display module, which comprises the backlight module.
On the other hand, an embodiment of the present invention further provides an electronic device, which includes the display module.
By the technical scheme, the backlight module, the display module and the electronic equipment at least have the following advantages: the second backboard component is arranged on the periphery of the first backboard component, the third backboard component is arranged on the periphery of the first backboard component and the periphery of the second backboard component to jointly form a backlight backboard, the first backboard component and the third backboard component are relatively independent, the third backboard component is separately and electrically connected with the flexible circuit board and the liquid crystal display, the problem that the whole backboard is grounded together with the flexible circuit board and the liquid crystal display is avoided, when the liquid crystal display works, an electric field cannot be formed between the first backboard component and the liquid crystal display, the screen is effectively prevented from being squeaked, and user experience is improved.
Drawings
Fig. 1 is a schematic structural diagram of a backlight module according to an embodiment of the present invention;
FIG. 2 is a rear view of FIG. 1;
fig. 3 is a side cross-sectional view of a backlight module according to an embodiment of the invention;
fig. 4 is a schematic structural diagram of a first backplane assembly of a backlight module according to an embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of a second backplane assembly of a backlight module according to an embodiment of the present disclosure;
fig. 6 is a schematic structural diagram of a third backplane assembly of a backlight module according to an embodiment of the present disclosure.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description will be given to the backlight module, the display module and the electronic device according to the present invention with reference to the accompanying drawings and the preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In order to solve the technical problems, the embodiment of the invention has the following general idea:
example 1
Referring to fig. 1 and fig. 2, a backlight module according to an embodiment of the present invention includes:
the first backboard component 1 is of a plate-shaped conductor structure;
the second back plate assembly 2 is a circumferential closed insulator frame, and the second back plate assembly 2 is arranged around the circumferential periphery of the first back plate assembly 1;
the third back plate assembly 3 is of a circumferentially closed conductor frame structure, and the third back plate assembly 3 is arranged around the circumferential periphery of the second back plate assembly 2;
wherein, the third backboard component 3 is electrically connected with the flexible circuit board and the liquid crystal display and is arranged in common.
Specifically, in order to solve the problem of screen squealing caused by the common grounding of a Flexible Printed Circuit (FPC), a Liquid Crystal Display (LCD) and a back plate iron frame in electronic equipment, wherein the squealing is self-excited oscillation, the self-excited oscillation refers to constant and continuous oscillation which is generated by self without adding an excitation signal, and if no input signal is added at the input end of an amplifier, the output end still has the phenomenon of an output signal with certain amplitude and frequency; in order to solve the above problems, an embodiment of the present invention provides a backlight module, which includes the first backplane assembly 1, the second backplane assembly 2, and the third backplane assembly 3, wherein the first backplane assembly 1 is a rectangular metal plate-shaped structure, the second backplane assembly 2 is a rectangular non-metal non-conductive frame, the third backplane assembly 3 is a rectangular metal frame, the second backplane assembly 2 surrounds the circumferential periphery of the first backplane assembly 1, the third backplane assembly 3 surrounds the circumferential periphery of the second backplane assembly 2, and the three assemblies together form a backplane in the backlight module, so as to replace a conventional backplane, and the third backplane assembly 3 is electrically connected to a Flexible Printed Circuit (FPC) and a Liquid Crystal Display (LCD), and the three assemblies are arranged in common (GND) and have the same zero reference potential point, that is, the same ground line is shared, that is, the first backplane assembly 1 made of a metal material, and the third backplane assembly 3 made of a metal material are opposite to each other Independently, there is no electrical connection, and the two are not in common, and when the LCD works, an electric field is not formed between the first backplane assembly 2 and the LCD, and there is no voltage difference, so that squeaking is not generated.
According to the above list, the backlight module, the display module and the electronic device of the present invention have at least the following advantages: the second backboard component 2 is arranged at the periphery of the first backboard component 1, the third backboard component 3 is arranged at the periphery of the first backboard component 1 and the second backboard component 2 to jointly form a backlight backboard, the first backboard component 1 and the third backboard component 3 are relatively independent, the third backboard component 3 is independently and electrically connected with the flexible circuit board and the liquid crystal display, the problem that the whole backboard is grounded together with the flexible circuit board and the liquid crystal display is avoided, when the liquid crystal display works, an electric field cannot be formed between the first backboard component 1 and the liquid crystal display, the screen is effectively prevented from being squeaked, and user experience is improved.
The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may exist alone, or B may exist alone, and any of the three cases can be provided.
Further, referring to fig. 1 to 6, in an embodiment of the present invention, a backlight module is provided, in which in an implementation, the shapes and the cross-sectional shapes of the first backplane assembly 1, the second backplane assembly 2, and the third backplane assembly 3 are adapted.
Specifically, in order to achieve complete matching and convenient connection, in the technical scheme adopted by the invention, the first backboard component 1, the second backboard component 2 and the third backboard component 3 are configured to be matched with each other in shape and cross-sectional shape, wherein the length, the width, the shape and the cross-sectional shape are matched with each other, so that the second backboard component 2 can be completely fitted to the circumferential periphery of the first backboard component 1 in a manner of being completely matched with each other in a direction parallel to the board surface direction of the pair of backboard components 1 and in a direction perpendicular to the board surface direction, and the third backboard component 3 can also be completely fitted to the circumferential periphery of the second backboard component 2 in a manner of being completely fitted to the board surface direction parallel to the pair of backboard components 1 and in a direction perpendicular to the board surface direction.
Further, referring to fig. 4 to 6, in a specific implementation, a connection structure is disposed at a circumferential edge of the second backplane assembly 2, and the first backplane assembly 1 is in fastening connection with the second backplane assembly 2 through the connection structure;
the third backboard component 3 is buckled at the periphery of the connecting structure of the second backboard component 2.
Specifically, in order to achieve stable connection and convenience of connection, in the technical scheme adopted by the invention, the circumferential edge of the second backboard component 2 is provided with a connecting structure, the connecting structure is simultaneously connected with the first backboard component 2 and the third backboard component 3 at two sides thereof, namely the two sides of the inside and the outside of the frame shown in fig. 5, the inside of the frame is buckled with the first backboard component 1 through the connecting structure, and the outside of the frame is buckled with the third backboard component 3; the connection mode of the buckling depends on the connection structure, and the connection structure can be buckled or plugged, for example, the connection structure is a buckling mode of the accommodating groove;
referring to fig. 4 to 6, in the backlight module according to an embodiment of the present invention, at least two opposite edges of the first backplane assembly 1 are provided with glue injection portions 11;
at least two opposite edges of the second backplane assembly 2 are provided with first accommodating grooves 21, and the first accommodating grooves 21 correspond to the glue injection parts 11 in position and are used for accommodating the glue injection parts 11, wherein the glue injection parts 11 of the first backplane assembly 1 are buckled in the first accommodating grooves 21 of the second backplane assembly 2;
at least two opposite edges of the second back plate assembly 3 are provided with second accommodating grooves 31 for accommodating the first accommodating grooves 21, wherein the first accommodating grooves 21 of the second back plate assembly 2 are fastened in the second accommodating grooves 31 of the third back plate.
Specifically, when the connection structure is the first receiving groove 21, the groove is a receiving space formed by recesses with higher peripheries and middle parts, so that the second backplane assembly 2 provided in the embodiment of the present invention is a rectangular frame with a curved edge, wherein the first receiving groove 21 is a groove body which is arranged at the edge of the second backplane assembly 2, is communicated with the center of the second backplane assembly 2, and circumferentially closes the middle part of the recess and has a groove bottom surface, or referring to fig. 1, the first receiving groove is a groove body which is arranged at the edge of the second backplane assembly 2, is communicated with the center of the second backplane assembly 2, and is provided with side walls at the upper and lower sides of the glue injection part 11 in the figure and is recessed at the middle part thereof and has a groove bottom surface; the first containing groove 21 is arranged on the left and right opposite edges of the second backboard component 2, correspondingly, the glue injection part 11 is arranged at the position corresponding to the first containing groove 21 on the left and right edges of the first backboard component 1, the glue injection part 11 is matched with the first containing groove 21 in shape and in position, the depth of the first containing groove 21 is the same as the thickness of the plate body of the first backboard component 1, namely the glue injection part 11, when the first backboard component 1 is fastened on the second backboard component 2, the glue injection part 11 is contained in the first containing groove 21, one surface of the glue injection part 11 is contacted and attached with the groove bottom of the first containing groove 21, and the frame of the second backboard component 2 except the first containing groove 21 is attached to the periphery of the edge of the first backboard component 1; correspondingly, the second receiving grooves 31 are formed in the left and right edges of the third back plate assembly 3, the third receiving grooves 31 are matched with the first receiving grooves 21 of the second back plate assembly 2 in shape and correspond in position, when the second back plate assembly 2 and the first back plate assembly 1 are simultaneously engaged with the third back plate assembly 3, the first receiving grooves 21 are received in the second receiving grooves 31, and the outer edges of the frames of the second back plate assembly 2 except the first receiving grooves 21 are engaged with the inner wall of the third back plate assembly 3; referring to fig. 6, the third backplane assembly 3 is a rectangular frame with flat edges, that is, the third backplane assembly 3 is a rectangular frame, the second receiving grooves 31 are dug on all the edges, and the depth of the second receiving grooves 31 is the same as the thickness of the frame body of the second backplane assembly 2.
Further, the connection structure is a plug-in type snap-fit connection, and referring to fig. 1 to 6, in a specific implementation of the backlight module provided in the embodiment of the present invention, a first glue injection hole 12 is formed in the glue injection portion 11, perpendicular to the surface of the first backplane assembly 1;
a glue column 22 is arranged in the first accommodating groove 21, and the glue column 22 is in matched sleeve joint with the first glue injection hole 12 and used for buckling and bonding the first backboard component 1 and the second backboard component 2;
a second glue injection hole 32 is formed in the second accommodating groove 31 corresponding to the first glue injection hole 12, and the second glue injection hole 32 is in matched sleeve connection with the glue column 22 and used for buckling and bonding the second backboard component 2, the first backboard component 1 and the third backboard component 3.
Specifically, in order to fasten firmly, in the technical scheme adopted in the present invention, referring to fig. 3, the glue column 22 is disposed in the first accommodating groove 21, the first glue injection hole 12 is correspondingly disposed on the glue injection portion 11, the second glue injection hole 32 is disposed in the second accommodating groove 32, and when the first backplane assembly 1 is fastened to the second backplane assembly 2, the first glue injection hole 12 on the glue injection portion 11 is sleeved on the glue column 22 in the first accommodating groove 21, so as to further enhance the fastening firmness of the first backplane assembly 1 and the second backplane assembly 2; when the first backplane assembly 1 and the second backplane assembly 2 are buckled with the third backplane assembly 3 at the same time, the glue column 22 of the first accommodating groove 21 is sleeved with the second glue injection hole 32 in the second accommodating groove 31 again, so that the buckling between the second backplane assembly 2 and the third backplane assembly 3 is further enhanced; furthermore, the first glue injection hole 12 and the second glue injection hole 32 may be formed at two sides perpendicular to the surface of the first backplane assembly 1, and with reference to fig. 5, glue is injected into the backplane by the first glue injection hole 12 and the second glue injection hole 32 in two directions perpendicular to the inward direction of the picture and the outward direction of the picture, so as to further connect the first backplane assembly 2, the second backplane assembly 2, and the third backplane assembly 3 into a whole.
Further, referring to fig. 4, in a specific implementation of the backlight module according to the embodiment of the present invention, the glue injection portion 11 is disposed outward from the center of the first backplane assembly 1 and perpendicular to the edge of the first backplane assembly 1.
Particularly, in order to stabilize the buckling and facilitate the production; in the technical scheme adopted by the invention, the glue injection part 11 is arranged on the edge of the first backboard component 1 and is vertical to the edge, namely referring to the attached drawing 3, the glue injection part 11 is horizontally arranged vertical to the edge of the first backboard component 1, and the glue injection part 11 and the first backboard component 1 are arranged at a right angle, so that the connection firmness when the first backboard component 1 and the second backboard component 2 are buckled can be improved, and the requirement on a grinding tool is easy to reach during production and manufacturing; of course, this design is only one embodiment provided by the present invention, and the glue injection portion 11 may also be disposed along the edge of the first backplane assembly 1 to be inclined upward or downward, and the shape of the glue injection portion 11 is not limited herein, referring to fig. 4 to 6, the glue injection portion 11, the first receiving groove 21, and the second receiving groove 31 are all similar to a trapezoid, and may be of other polygonal shapes, as long as the three meet the requirement of mutual adaptation and can complete mutual fastening.
Example 2
Further, referring to fig. 6, in a specific implementation, the backlight module provided in the embodiment of the present invention further includes a connection glue column 23;
the connecting rubber columns 23 are arranged between the adjacent first accommodating grooves 21, and the connecting rubber columns 23 are arranged outwards along the center of the second backboard component 2 and perpendicular to the edge of the second backboard component 2;
a third glue injection hole 33 is formed in the second accommodating groove 31 corresponding to the connecting glue column 23, and the third glue injection hole 33 is in matched sleeve joint with the connecting glue column 23 and is used for accommodating the connecting glue column 23 and bonding the second back plate assembly 2 and the third back plate assembly 3.
Specifically, in order to enhance the connection between the second backplane assembly 2 and the third backplane assembly 3, in the technical scheme adopted by the present invention, the connecting glue column 23 is disposed between two adjacent first receiving grooves 21 of the second backplane assembly 2, and third glue injection holes 33 are correspondingly disposed on two opposite edges of the third backplane assembly 3, and are used for being sleeved with the connecting glue column 23 and injecting glue, so as to connect the second backplane assembly 2 and the third backplane assembly 3 while the first receiving grooves 21 and the second receiving grooves 31 are fastened; the connecting glue column 23 is arranged outward perpendicular to the edge of the second backplane assembly 2, that is, in the horizontal direction in fig. 4, the third glue injection hole 33 is also arranged horizontally on the third backplane assembly 3, and after the connecting glue column 23 and the third glue injection hole 33 are sleeved with each other, glue is injected inwards from the third glue injection hole 33 of the third backplane assembly 3 in the horizontal direction, so that the second backplane assembly 2 and the third backplane assembly 3 are bonded; the connecting rubber column 23 is matched with the third rubber injection hole 33, the shape is not described in detail, and the connecting rubber column can be matched with the third rubber injection hole to complete sleeving or splicing.
Example 3
The embodiment of the invention provides a display module, and in specific implementation, the display module comprises the backlight module in the embodiment;
for a specific structure of the backlight module, reference is made to the related contents described in the above embodiments, and redundant description is not repeated here.
Example 4
In a specific implementation of the electronic device provided in an embodiment of the present invention, the electronic device includes the display module in the foregoing embodiment;
for the specific structure of the display module, please refer to the related contents described in the above embodiments, which is not described herein in detail.
Claims (10)
1. A backlight module is characterized in that the backlight module comprises:
the first backboard component is of a plate-shaped conductor structure;
the second back plate assembly is a circumferential closed insulator frame and is arranged around the circumferential periphery of the first back plate assembly;
the third back plate assembly is of a circumferential closed conductor frame structure and is arranged around the circumferential periphery of the second back plate assembly;
wherein the third backplane assembly is electrically connected to the flexible circuit board and the liquid crystal display and is disposed in common.
2. The backlight module of claim 1, wherein:
the shapes and the cross-sectional shapes of the first backboard component, the second backboard component and the third backboard component are matched.
3. The backlight module of claim 2, wherein:
the circumferential edge of the second back plate assembly is provided with a connecting structure, and the first back plate assembly is buckled and connected with the second back plate assembly through the connecting structure;
the third backboard component is buckled at the periphery of the connecting structure of the second backboard component.
4. The backlight module of claim 3, wherein:
glue injection parts are arranged on at least two opposite edges of the first backboard component;
the second backboard component comprises a glue injection part, a first containing groove and a second containing groove, wherein the glue injection part is arranged at the first containing groove;
and the second accommodating grooves are formed in at least two opposite edges of the third back plate assembly and used for accommodating the first accommodating grooves, wherein the first accommodating grooves of the second back plate assembly are buckled with the second accommodating grooves of the third back plate.
5. The backlight module of claim 4, wherein:
a first glue injection hole is formed in the glue injection part and is perpendicular to the surface of the first back plate assembly;
a glue column is arranged in the first accommodating groove, is in matched sleeve joint with the first glue injection hole and is used for buckling and bonding the first back plate assembly and the second back plate assembly;
and a second glue injection hole is formed in the second accommodating groove corresponding to the first glue injection hole and is in matched sleeve joint with the glue column for buckling and bonding the second back plate assembly, the first back plate assembly and the third back plate assembly.
6. The backlight module of claim 5, wherein:
the glue injection part is arranged outwards from the center of the first backboard component to the edge of the first backboard component.
7. The backlight module of claim 6, wherein:
the device also comprises a connecting rubber column;
the connecting rubber columns are arranged between the adjacent first accommodating grooves and are arranged outwards along the center of the second backboard component and perpendicular to the edge of the second backboard component;
and a third glue injection hole is formed in the second accommodating groove corresponding to the connecting glue column and is in matched sleeve joint with the connecting glue column, and the third glue injection hole is used for accommodating the connecting glue column and bonding the second back plate assembly and the third back plate assembly.
8. The backlight module of claim 7, wherein:
the cross sections of the glue injection part, the glue columns and the connecting glue columns are polygonal structures.
9. A display module, its characterized in that, it includes:
the backlight module of any of claims 1-8.
10. An electronic device, comprising:
the display module of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910122792.2A CN109633982B (en) | 2019-02-19 | 2019-02-19 | Backlight module, display module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910122792.2A CN109633982B (en) | 2019-02-19 | 2019-02-19 | Backlight module, display module and electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
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| CN114002873B (en) * | 2020-07-27 | 2024-01-23 | 北京小米移动软件有限公司 | Electronic device, control method thereof, and computer-readable storage medium |
| CN112882272B (en) * | 2021-03-01 | 2022-04-12 | 武汉华星光电技术有限公司 | Liquid crystal display device having a plurality of pixel electrodes |
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| CN1259724A (en) * | 1998-12-17 | 2000-07-12 | 阿尔卑斯电气株式会社 | Liquid crystal displaying device |
| KR20010107435A (en) * | 2000-05-29 | 2001-12-07 | 송재인 | Lcd module |
| KR20080021985A (en) * | 2006-09-05 | 2008-03-10 | 엘지.필립스 엘시디 주식회사 | Flat panel display |
| CN102563452A (en) * | 2010-09-29 | 2012-07-11 | 三星电子株式会社 | Backlight assembly having light emitting diode package and display apparatus having the same |
| CN103558707A (en) * | 2013-11-12 | 2014-02-05 | 京东方科技集团股份有限公司 | Liquid-crystal module and displaying equipment |
| CN107437590A (en) * | 2016-05-30 | 2017-12-05 | 乐金显示有限公司 | Display device |
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2019
- 2019-02-19 CN CN201910122792.2A patent/CN109633982B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1259724A (en) * | 1998-12-17 | 2000-07-12 | 阿尔卑斯电气株式会社 | Liquid crystal displaying device |
| KR20010107435A (en) * | 2000-05-29 | 2001-12-07 | 송재인 | Lcd module |
| KR20080021985A (en) * | 2006-09-05 | 2008-03-10 | 엘지.필립스 엘시디 주식회사 | Flat panel display |
| CN102563452A (en) * | 2010-09-29 | 2012-07-11 | 三星电子株式会社 | Backlight assembly having light emitting diode package and display apparatus having the same |
| CN103558707A (en) * | 2013-11-12 | 2014-02-05 | 京东方科技集团股份有限公司 | Liquid-crystal module and displaying equipment |
| CN107437590A (en) * | 2016-05-30 | 2017-12-05 | 乐金显示有限公司 | Display device |
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