CN115016179A - Backlight module and manufacturing method thereof - Google Patents
Backlight module and manufacturing method thereof Download PDFInfo
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- CN115016179A CN115016179A CN202210760411.5A CN202210760411A CN115016179A CN 115016179 A CN115016179 A CN 115016179A CN 202210760411 A CN202210760411 A CN 202210760411A CN 115016179 A CN115016179 A CN 115016179A
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- 230000008093 supporting effect Effects 0.000 claims abstract description 234
- 239000000758 substrate Substances 0.000 claims abstract description 51
- 239000000853 adhesive Substances 0.000 claims description 18
- 230000001070 adhesive effect Effects 0.000 claims description 18
- 239000003292 glue Substances 0.000 claims description 13
- 230000003014 reinforcing effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 2
- 230000001795 light effect Effects 0.000 abstract description 8
- 239000010410 layer Substances 0.000 description 12
- 239000012790 adhesive layer Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 3
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- 230000003247 decreasing effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- 238000001746 injection moulding Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 239000012788 optical film Substances 0.000 description 1
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- 239000007787 solid Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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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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- 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
- G02F1/133609—Direct backlight including means for improving the color mixing, e.g. white
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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 manufacturing method thereof; the backlight module comprises a substrate, a plurality of light sources and a plurality of supporting columns, wherein the light sources and the supporting columns are arranged on the substrate, and the supporting columns are located between every two adjacent light sources. The support column comprises a first support part and a second support part, the first support part is fixedly arranged on the base plate, the second support part is arranged on one side of the first support part, which is far away from the base plate, and the first support part and the second support part are detachably connected; this application is through setting up the support column into including first supporting part and second supporting part to first supporting part can dismantle with the second supporting part and be connected, when equipment backlight unit, if mix the light distance too big or undersize and lead to mixing the light effect when not good, can adjust the height of support column through changing the second supporting part, and then adjust backlight unit's mixed light distance size, make backlight unit have better light effect.
Description
Technical Field
The application relates to the field of display technology, in particular to a backlight module and a manufacturing method thereof.
Background
The direct type backlight module mainly comprises a lamp panel, a diffusion plate, an optical film layer such as a brightness enhancement film and the like. The light mixing Distance (OD) is the Distance between the lamp panel and the diffuser plate, and the larger the light mixing Distance is, the more sufficient the light mixing is, the fewer the lamp shadows are, and the visual effect is better. The lamp plate is gone up and is set up a plurality of support columns in order to support leading the diffuser plate usually, and the height of support column has direct influence to mix the light distance.
At present, the support column is generally made through the design die sinking and then assembled to the lamp plate, and the height of the support column cannot be adjusted after the design die sinking. If the light mixing effect is found to be poor in the assembling process of the backlight module, the light mixing distance of the backlight module is difficult to adjust due to the fact that the height of the supporting column can not be adjusted, and the product yield is reduced.
Disclosure of Invention
The application provides a backlight module and a manufacturing method thereof, which are used for solving the technical problem that the light mixing distance of the current backlight module is difficult to adjust due to the fact that the height of a support column cannot be adjusted.
In order to solve the technical problem, the technical scheme provided by the application is as follows:
the application provides a backlight unit, includes:
a substrate;
a plurality of light sources disposed on the substrate; and
the supporting columns are arranged on the substrate and positioned between two adjacent light sources;
wherein, the support column includes first supporting part and second supporting part, first supporting part fixed set up in on the base plate, the second supporting part set up in first supporting part is kept away from one side of base plate, and first supporting part with the connection can be dismantled to the second supporting part.
In the backlight module of the application, the first supporting part or/and the second supporting part is provided with at least one first caulking groove on the side that is close to each other, the first supporting part is embedded in the first caulking groove on the second supporting part or/and the second supporting part is embedded in the first caulking groove of the first supporting part.
In the backlight module, in a first direction, the cross-sectional dimension of the first caulking groove perpendicular to the first direction is gradually increased or decreased along the first direction;
the first direction is parallel to the connecting line direction of the first supporting column and the second supporting column.
In the backlight module of the present application, the second supporting portion includes an elastic glue material, and the hardness of the second supporting portion is less than the hardness of the first supporting portion.
In the backlight module of the present application, in a line direction of the first supporting portion and the second supporting portion, a ratio of a height of the first supporting portion to a height of the second supporting portion is 1/2 to 1.
In the backlight module, a plurality of second caulking grooves are formed in the substrate, and a plurality of support columns are arranged in the second caulking grooves;
the depth of the second caulking groove is smaller than the height of the first supporting part in the direction parallel to the connecting line of the first supporting part and the second supporting part.
In the backlight module of this application, first supporting part is kept away from the surface of second supporting part is provided with viscose spare, first supporting part passes through viscose spare fixed set up in the second caulking groove.
In the backlight module, a reinforcing glue layer is arranged in the second caulking groove and surrounds the first supporting part;
and the reinforcing glue layer fills the area of the second caulking groove except the first supporting part.
In the backlight module, a reflecting layer is arranged on the surface of the substrate, which is close to the supporting columns, and a plurality of opening areas are arranged on the reflecting layer in an array manner;
wherein the plurality of light sources are disposed in the plurality of opening regions.
The application also provides a manufacturing method of the backlight module, which comprises the following steps:
providing a substrate;
disposing a plurality of light sources on the substrate;
arranging a plurality of first supporting parts on the substrate, and enabling the first supporting parts to be positioned between two adjacent light sources;
and arranging a second supporting part on the first supporting part, and detachably connecting the second supporting part with the first supporting part to form a plurality of supporting columns.
Advantageous effects
This application is through inciting somebody to action the support column sets up to including first supporting part and second supporting part to first supporting part can dismantle with the second supporting part and be connected, is assembling during backlight unit, if mix the light distance too big or undersize and lead to mixing when the light effect is not good, can pass through the change the second supporting part is adjusted the height of support column, and then adjust backlight unit's mixed light distance size makes backlight unit has better light effect.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, 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 view of a first structure of a backlight module according to the present application;
FIG. 2 is a schematic view of a second structure of the backlight module of the present application;
FIG. 3 is a schematic view of a third structure of the backlight module of the present application;
fig. 4 is a block flow diagram of a method for manufacturing a backlight module according to the present application.
Description of reference numerals:
100. a substrate; 110. a second caulking groove; 200. a light source; 300. a support pillar; 310. a first support section; 311. a sticky member; 320. a second support portion; 330. a first caulking groove; 340. a protrusion; 400. reinforcing the adhesive layer; 500. and a reflective layer.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below 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. Furthermore, it should be understood that the detailed description and specific examples, while indicating exemplary embodiments of the invention, are given by way of illustration and explanation only, and are not intended to limit the scope of the invention. In the present application, unless indicated to the contrary, the use of the directional terms "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, and more particularly to the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
At present, the support columns on the lamp panel of the direct type backlight module are generally manufactured through setting and die sinking, and the height of the support columns cannot be adjusted after the setting and die sinking. If the light mixing effect is found to be poor in the assembling process of the backlight module, the light mixing distance of the backlight module is difficult to adjust due to the fact that the height of the supporting column can not be adjusted, and the product yield is reduced. The present application proposes the following solutions based on the above technical problems.
Referring to fig. 1 to 3, the present application provides a backlight module, which includes a substrate 100, a plurality of light sources 200 disposed on the substrate 100, and a plurality of supporting pillars 300, wherein the supporting pillars 300 are located between two adjacent light sources 200. The supporting column 300 includes a first supporting portion 310 and a second supporting portion 320, the first supporting portion 310 is fixedly disposed on the substrate 100, the second supporting portion 320 is disposed on one side of the substrate 100 away from the first supporting portion 310, and the first supporting portion 310 is detachably connected with the second supporting portion 320.
This application is through inciting somebody to action support column 300 sets up to including first supporting part 310 and second supporting part 320 to first supporting part 310 can dismantle with second supporting part 320 and be connected, is assembling during backlight unit, if mix the light distance too big or when the undersize leads to mixing the light effect not good, can adjust through changing second supporting part 320 the height of support column 300, and then adjust backlight unit's mixed light distance size makes backlight unit has better light effect.
The technical solution of the present application will now be described with reference to specific embodiments. It should be noted that the following description of the embodiments is not intended to limit the preferred order of the embodiments.
In this embodiment, the substrate 100 may be a hard plate, such as a rigid metal plate or a plastic plate. The substrate 100 may be used as a back frame bottom plate of the backlight module, and together with the side frame of the back frame, the substrate and the side frame of the back frame may be used as other structures in the backlight module to provide a supporting base and a protective housing.
In this embodiment, the light sources 200 may be LED chips, Mini-LED chips, Micro-LED chips, or the like, and a plurality of the light sources 200 may be arranged on the substrate 100 in an array.
In this embodiment, the plurality of supporting pillars 300 may be uniformly distributed on the substrate 100, and the number of the supporting pillars 300 may be less than the number of the light sources 200. At least two light sources 200 may be disposed between two adjacent supporting pillars 300 at equal intervals, so that the number of the supporting pillars 300 is suitable, which not only provides a good supporting function for other film structures of the backlight module, such as a diffuser plate (not shown), but also reduces the usage of the supporting pillars 300, and saves the cost and the manufacturing time.
Referring to fig. 1, fig. 1 is a first structural schematic diagram of a backlight module according to the present application, in the backlight module according to the present application, the first supporting portion 310 and the second supporting portion 320 of the supporting post 300 may be made of the same material, or the first supporting portion 310 and the second supporting portion 320 may also be made of different materials.
In this embodiment, the first supporting part 310 may be a rigid metal member or a plastic member, and in this case, the first supporting part 310 may be manufactured by mold casting or injection molding. The first supporting portion 310 and the substrate 100 may be fixed by an adhesive or other mechanical methods, such as bolts, buckles, and the like. The first supporting portion 310 may also be made of an elastic adhesive material, such as rubber, and the first supporting portion 310 may be directly formed on the substrate 100 by dispensing, and the first supporting portion 310 may be fabricated more easily and quickly.
In this embodiment, the material of the second supporting portion 320 may also include an elastic adhesive material, and the hardness of the first supporting portion 310 and the second supporting portion 320 may be less than that of the first supporting portion 310. At this time, the first supporting portion 310 has a relatively high structural rigidity, which may play a role in supporting a substrate well, and the second supporting portion 320 has a relatively good elastic buffering role, which may reduce surface wear of the supporting column 300 to the diffuser plate disposed thereon, and improve the service life of the diffuser plate.
In this embodiment, the shapes of the first supporting portion 310 and the second supporting portion 320 may be a circular truncated cone structure or a truncated pyramid structure, and the surface size of the circular truncated cone structure or the truncated pyramid structure near the side of the substrate 100 is greater than the surface size of the circular truncated cone structure or the truncated pyramid structure far away from the side of the substrate 100, and the surface size of the first supporting portion 310 far away from the side of the substrate 100 is greater than or equal to the surface size of the second supporting portion 320 near the side of the substrate 100.
In other words, in this embodiment, the shapes of the sides of the first supporting portion 310 and the second supporting portion 320 that are close to each other are similar, and the surface size of the first supporting portion 310 that is close to the second supporting portion 320 is greater than or equal to the surface size of the second supporting portion 320 that is close to the first supporting portion 310, so that the first supporting portion 310 can perform a sufficient supporting effect on the second supporting portion 320, and the supporting stability of the supporting column 300 is improved.
Referring to fig. 2 and fig. 3, fig. 2 is a second structural schematic diagram of the backlight module of the present application, and fig. 3 is a third structural schematic diagram of the backlight module of the present application. In the backlight module of the present application, the first supporting portion 310 or/and the second supporting portion 320 are provided with at least one first caulking groove 330 and at least one protrusion 340 on the side surface close to each other, the protrusion 340 and the first caulking groove 330 are in one-to-one correspondence, and the protrusion 340 and the first caulking groove 330 are respectively disposed in one of the first supporting portion 310 and the second supporting portion 320. The first supporting portion 310 and the second supporting portion 320 can be connected in a clamping manner through the first caulking groove 330 and the protrusion 340, and the connecting structure is simple, convenient to assemble and easy to disassemble.
In this embodiment, the first support part 310 is inserted into the first caulking groove 330 of the second support part 320 or/and the second support part 320 is inserted into the first caulking groove 330 of the first support part 310.
Specifically, as shown in fig. 2, the surface of the first support part 310 close to the second support part 320 may be provided with the first caulking groove 330, and the surface of the second support part 320 close to the first support part 310 may be provided with the protrusion 340, and the protrusion 340 is embedded in the first caulking groove 330. Alternatively, as shown in fig. 3, the surface of the second support part 320 close to the first support part 310 may be provided with the first caulking groove 330, the surface of the first support part 310 close to the second support part 320 may be provided with the protrusion 340, and the protrusion 340 is embedded in the first caulking groove 330.
Alternatively, the surface of the first support part 310 close to the second support part 320 and the surface of the second support part 320 close to the first support part 310 may be provided with the first caulking groove 330 and the protrusion 340 at the same time, the protrusion 340 on the first support part 310 is embedded in the first caulking groove 330 on the second support part 320, and the protrusion 340 on the second support part 320 is embedded in the first caulking groove 330 on the first support part 310.
In this embodiment, the first supporting portion 310 and the second supporting portion 320 may be further reinforced by glue. It should be noted that, when the first supporting portion 310 and the second supporting portion 320 are reinforced by glue, the viscosity of the glue does not need to be too large, and the second supporting portion 320 only needs to be stably adhered to the first supporting portion 310 without hindering the detachment of the second supporting portion 320 from the first supporting portion 310.
In this embodiment, the first caulking groove 330 and/or the protrusion 340 are/is disposed on the first supporting portion 310 and/or the second supporting portion 320, so that the first supporting portion 310 and the second supporting portion can be connected in a snap-fit manner through the first caulking groove 330 and the protrusion 340, and the second supporting portion 320 is conveniently detached from the first supporting portion 310 while the connection stability of the first supporting portion 310 and the second supporting portion 320 is improved, thereby conveniently adjusting the height of the supporting portion and realizing the adjustment of the light mixing distance.
Referring to fig. 2, in the backlight module of the present application, in a first direction, a cross-sectional dimension of the first caulking groove 330 perpendicular to the first direction may gradually increase or decrease along the first direction, and the first direction is parallel to a connection line direction of the first supporting column 300 and the second supporting column 300.
Specifically, the first direction may be a direction from the first support part 310 to the second support part 320. When the first caulking groove 330 is disposed on the first support part 310, a cross-sectional size of the first caulking groove 330 perpendicular to the first direction may gradually increase along the first direction in the first direction. Similarly, when the first caulking groove 330 is provided on the second support part 320, a cross-sectional dimension of the first caulking groove 330 perpendicular to the first direction may be gradually reduced along the first direction in the first direction.
In the embodiment, the cross-sectional dimension of the first caulking groove 330 is designed to be gradually increased or decreased along the first direction, so that a "wedge-shaped snap-fit" structure is formed at the joint of the second support part 320 and the first support part 310, and the "wedge-shaped snap-fit" structure helps to further improve the detachability of the second support part 320 and the first support part 310, reduce the disassembly resistance, and improve the convenience of height adjustment of the support post 300 in the backlight module.
Referring to fig. 2 and 3, in the backlight module of the present application, in the first direction, or in a connection line direction of the first supporting portion 310 and the second supporting portion 320, a ratio of a height of the first supporting portion 310 to a height of the second supporting portion 320 is 1/2 to 1. At this time, the height of the first supporting part 310 as the bottom support is less than or equal to the height of the second supporting part 320, so that the second supporting part 320 can be replaced with a larger height adjusting range, and the light mixing distance adjustment of the backlight module within the larger range is realized. Moreover, the height of the first supporting portion 310 is not less than half of the height of the second supporting portion 320, so that the first supporting portion 310 itself has sufficient supporting stability and combining stability with the substrate 100, and is not easy to deform or displace due to the detachment of the second supporting portion 320, thereby facilitating the improvement of the adaptability of the supporting column 300 during the height adjustment.
Referring to fig. 2 and 3, in the backlight module of the present application, a plurality of second grooves 110 may be disposed on a surface of the substrate 100 on which the light sources 200 are disposed, and a plurality of supporting pillars 300 may be disposed in the second grooves 110. The second caulking groove 110 may be used to position and limit the displacement of the support post 300, so that the support post 300 is not easy to slip and dislocate on the surface of the substrate 100, and the bonding stability of the support post 300 and the surface of the substrate 100 is improved.
In this embodiment, a surface of the first supporting portion 310 away from the second supporting portion 320 may be attached to the bottom of the second caulking groove 110, that is, the first supporting portion 310 may be fixedly disposed in the second caulking groove 110. The surface of the first support part 310 away from the second support part 320 is similar to the notch shape of the second caulking groove 110, and the size of the notch of the second caulking groove 110 is slightly larger than the size of the surface of the first support part 310 away from the second support part 320.
In this embodiment, in a direction parallel to a connection line of the first supporting portion 310 and the second supporting portion 320, that is, in the first direction, a depth of the second caulking groove 110 may be smaller than a height of the first supporting portion 310, so that a surface of the first supporting portion 310 close to the second supporting portion 320 may protrude from a surface of the substrate 100, thereby facilitating the arrangement of the second supporting portion 320 on the surface of the first supporting portion 310 and improving the convenience of assembling the second supporting portion 320 and the first supporting portion 310.
Specifically, when the second supporting portion 320 is disposed on the first supporting portion 310 by dispensing, the first supporting portion 310 protruding from the surface of the substrate 100 may provide a dispensing position that is easier to attach, thereby improving the forming efficiency of the second supporting portion 320. Moreover, when the height of the supporting column 300 is adjusted, the second supporting part 320 is easily detached from the first supporting part 310 protruding from the surface of the substrate 100, and the height adjusting efficiency of the supporting part is improved.
Referring to fig. 2 and 3, in the backlight module of the present application, a surface of the first supporting portion 310 away from the second supporting portion 320 may be provided with an adhesive 311, that is, a surface of the first supporting portion 310 attached to the bottom of the second caulking groove 110 may be provided with the adhesive 311, and the first supporting portion 310 may be fixedly disposed in the second caulking groove 110 through the adhesive 311. At this time, the first support 310 may be an independent member, and the adhesive member 311 may be a patch adhesive disposed on the surface of the first support 310, and when the first support 310 is placed in the second caulking groove 110, the patch adhesive automatically fixes the first support 310 in the second caulking groove 110.
Referring to fig. 3, in the present embodiment, a reinforcing adhesive layer 400 may be further disposed in the second caulking groove 110, and the reinforcing adhesive layer 400 may be disposed around the first supporting portion 310, that is, the reinforcing adhesive layer 400 may fill the area of the second caulking groove 110 except for the first supporting portion 310. The reinforcing adhesive layer 400 may be a photo-curing adhesive or other adhesive material that can be transformed from a liquid state to a solid state, and the reinforcing adhesive layer 400 may further improve the bonding stability of the first supporting portion 310 and the substrate 100 on the basis of the adhesive member 311.
Referring to fig. 2 and fig. 3, in the backlight module of the present application, a reflective layer 500 is disposed on a surface of the substrate 100 close to the supporting pillars 300, and the reflective layer 500 may be a high-reflectivity metal film, such as Al, Cu, or the like. A plurality of opening regions are formed in the reflective layer 500 in an array, and a plurality of the light sources 200 and a plurality of the support pillars 300 may be disposed in the plurality of opening regions. In other words, the reflective layer 500 may be disposed on the side of the substrate 100 except for the light source 200 and the support post 300. The reflective layer 500 may reflect the bottom light of the light source 200 to the light emitting direction of the backlight module, that is, the bottom light of the light source 200 is reflected to the diffusion plate located above the substrate 100, so as to improve the light utilization rate of the backlight module.
This application is through inciting somebody to action support column 300 sets up to including first supporting part 310 and second supporting part 320 to first supporting part 310 can dismantle with second supporting part 320 and be connected, is assembling during backlight unit, if mix the light distance too big or when the undersize leads to mixing the light effect not good, can adjust through changing second supporting part 320 the height of support column 300, and then adjust backlight unit's mixed light distance size makes backlight unit has better light effect.
Referring to fig. 4, the present application further provides a method for manufacturing a backlight module, which is used to manufacture the backlight module in the above embodiments.
The manufacturing method of the backlight module can comprise the following steps:
s100, providing a substrate 100;
s200, disposing a plurality of light sources 200 on the substrate 100;
s300, disposing a plurality of first supporting parts 310 on the substrate 100, and positioning the first supporting parts 310 between two adjacent light sources 200;
s400, arranging a second supporting portion 320 on the first supporting portion 310, and detachably connecting the second supporting portion 320 and the first supporting portion 310 to form a plurality of supporting columns 300.
And S500, arranging a diffusion plate on the supporting column 300 to form the backlight module.
In this embodiment, the step S300 may include:
s310, forming a plurality of second caulking grooves 110 on the surface of the substrate 100 on which the light sources 200 are disposed;
s320, providing a plurality of first supporting parts 310, wherein a first surface of the first supporting part 310 is provided with an adhesive member 311, and a second surface of the first supporting part 310 is provided with a first caulking groove 330.
In this embodiment, the first surface and the second surface of the first supporting part 310 may be two different and parallel surfaces of the first supporting part 310.
S330, disposing the first surfaces of the first supporting portions 310 in the second caulking grooves 110, and fixing the first supporting portions 310 in the second caulking grooves 110 through the adhesive 311.
S340, dropping a liquid glue material into the second caulking groove 110, so that the liquid glue material fills the region of the second caulking groove 110 except the first supporting portion 310, thereby forming a reinforcing glue layer 400.
In this embodiment, the step S400 may include:
s410, forming a second supporting portion 320 on the first supporting portion 310 by dispensing, thereby forming the supporting post 300.
In this embodiment, the second supporting portion 320 may be formed by curing liquid adhesive, and the liquid adhesive is adhered and fixed to the first supporting portion 310 after being cured.
In the embodiment of the present application, the supporting column 300 is manufactured through the above steps, so that the height of the supporting column 300 can be adjusted by replacing the second supporting portion 320 with a different one, thereby meeting different requirements on light mixing distance. Moreover, the first supporting portion 310 is firmly combined with the substrate 100 and is easy to manufacture, and the second supporting portion 320 is simply formed and stably combined with the first supporting portion 310, so that the processing efficiency can be integrally improved, and the manufacturing cost can be reduced.
The backlight module and the manufacturing method thereof provided by the embodiments of the present application are described in detail above, and the principle and the embodiment of the present application are explained by applying specific examples herein, and the description of the embodiments above is only used to help understanding the method and the core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and the application scope may be changed, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (10)
1. A backlight module, comprising:
a substrate;
a plurality of light sources disposed on the substrate; and
the supporting columns are arranged on the substrate and positioned between two adjacent light sources;
wherein, the support column includes first supporting part and second supporting part, first supporting part fixed set up in on the base plate, the second supporting part set up in first supporting part is kept away from one side of base plate, and first supporting part with the connection can be dismantled to the second supporting part.
2. The backlight module as claimed in claim 1, wherein the first support portion or/and the second support portion are provided with at least a first caulking groove on a side surface thereof adjacent to each other, and the first support portion is embedded in the first caulking groove of the second support portion or/and the second support portion is embedded in the first caulking groove of the first support portion.
3. A backlight module according to claim 2, wherein in a first direction, a cross-sectional dimension of the first bezel perpendicular to the first direction gradually increases or decreases along the first direction;
the first direction is parallel to the connecting line direction of the first supporting column and the second supporting column.
4. The backlight module as claimed in claim 1, wherein the second support portion comprises an elastic glue material, and the hardness of the second support portion is less than that of the first support portion.
5. The backlight module as claimed in claim 1, wherein a ratio of a height of the first support to a height of the second support in a line connecting the first support and the second support is 1/2-1.
6. The backlight module as claimed in claim 1, wherein the substrate has a plurality of second grooves, and the support posts are disposed in the second grooves;
the depth of the second caulking groove is smaller than the height of the first supporting part in the direction parallel to the connecting line of the first supporting part and the second supporting part.
7. The backlight module as claimed in claim 6, wherein an adhesive member is disposed on a surface of the first supporting portion away from the second supporting portion, and the first supporting portion is fixedly disposed in the second recessed groove via the adhesive member.
8. The backlight module as claimed in claim 7, wherein the second grooves have a reinforcing glue layer disposed therein, the reinforcing glue layer being disposed around the first support portion;
and the reinforcing glue layer fills the area of the second caulking groove except the first supporting part.
9. The backlight module as claimed in claim 1, wherein a reflective layer is disposed on a surface of the substrate adjacent to the supporting posts, and a plurality of opening regions are disposed in the reflective layer in an array;
wherein the plurality of light sources are disposed in the plurality of opening regions.
10. A method for manufacturing a backlight module is characterized by comprising the following steps:
providing a substrate;
disposing a plurality of light sources on the substrate;
arranging a plurality of first supporting parts on the substrate, and enabling the first supporting parts to be positioned between two adjacent light sources;
and arranging a second supporting part on the first supporting part, and detachably connecting the second supporting part with the first supporting part to form a plurality of supporting columns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210760411.5A CN115016179A (en) | 2022-06-29 | 2022-06-29 | Backlight module and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210760411.5A CN115016179A (en) | 2022-06-29 | 2022-06-29 | Backlight module and manufacturing method thereof |
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| CN115016179A true CN115016179A (en) | 2022-09-06 |
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| CN202210760411.5A Pending CN115016179A (en) | 2022-06-29 | 2022-06-29 | Backlight module and manufacturing method thereof |
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| CN (1) | CN115016179A (en) |
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