WO2024007526A1 - 背光模组、显示装置以及显示装置的组装方法 - Google Patents

背光模组、显示装置以及显示装置的组装方法 Download PDF

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Publication number
WO2024007526A1
WO2024007526A1 PCT/CN2022/137206 CN2022137206W WO2024007526A1 WO 2024007526 A1 WO2024007526 A1 WO 2024007526A1 CN 2022137206 W CN2022137206 W CN 2022137206W WO 2024007526 A1 WO2024007526 A1 WO 2024007526A1
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WO
WIPO (PCT)
Prior art keywords
glue
groove
middle frame
adhesive
backlight module
Prior art date
Application number
PCT/CN2022/137206
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English (en)
French (fr)
Inventor
杨晓辉
袁海江
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惠科股份有限公司
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Filing date
Publication date
Application filed by 惠科股份有限公司 filed Critical 惠科股份有限公司
Publication of WO2024007526A1 publication Critical patent/WO2024007526A1/zh

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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
    • G02F1/133308—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
    • G02F1/1335—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
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
    • 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
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • 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
    • G02F1/133325—Assembling processes
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present application relates to the field of display technology, and in particular, to a backlight module, a display device, and an assembly method of the display device.
  • liquid crystal display devices have the characteristics of low radiation, thin size, and low power consumption, they have been widely used in mobile phones and notebook computers. , personal computers and television and other fields.
  • the middle frame of the backlight module is pasted with double-sided tape.
  • the release film on one side of the tape needs to be removed in advance, and then the tape is pasted to the back panel, and then the release film on the back panel is removed.
  • the release film on the other side of the tape is then placed on the middle frame for pasting and fixing.
  • This assembly operation is cumbersome, requires a lot of manpower, and has poor stability.
  • the LCD panel is also fixed with double-sided tape. , which is the same as the fixing method of the middle frame and the back panel, resulting in increased labor costs and low assembly efficiency.
  • the purpose of this application is to provide a backlight module, a display device, and an assembly method of the display device that can improve assembly stability and have high assembly efficiency.
  • a backlight module which includes a backplane, a middle frame and adhesive.
  • the middle frame is arranged on the backplane.
  • a first glue-containing groove is provided between the backplane and the middle frame.
  • at least one glue hole is provided on the middle frame, one end of the glue hole is connected to the first glue-containing groove, and the other end forms an opening at the top of the middle frame; wherein, the adhesive is provided on the The first glue-containing groove is in the glue hole and protrudes from the top surface of the middle frame.
  • a first glue-containing groove is provided between the backplane and the middle frame, and at least one glue hole is provided on the middle frame.
  • One end of the glue hole is connected to the first glue-containing groove, and the other end forms an opening at the top of the middle frame.
  • the opening at the top of the middle frame, and the top surface of the adhesive is protruding. Since the display panel and the middle frame need to be pasted and fixed later, the design only needs to apply adhesive once to fix the middle frame and the back panel, and The display panel is fixed to the middle frame, thereby simplifying the assembly operation of the backlight module, realizing assembly automation, improving assembly efficiency, and improving assembly stability.
  • Figure 1 is a schematic structural diagram of the backlight module of the present application.
  • Figure 2 is a partially enlarged schematic diagram of area A in Figure 1;
  • Figure 3 is a schematic cross-sectional view along section line B-B’ in Figure 1;
  • Figure 4 is a schematic cross-sectional structural diagram of the display device of the present application.
  • Figure 5 is a schematic diagram of the installation process of the display device of the present application.
  • Figure 6 is a schematic structural diagram of the backplane provided by the first embodiment of the present application.
  • Figure 7 is a schematic cross-sectional view of the backplate provided by the first embodiment of the present application along the cross-section line C-C’ of Figure 5;
  • Figure 8 is a schematic diagram of the arrangement of the glue holes on the middle frame provided by the first embodiment of the present application.
  • Figure 9 is a schematic cross-sectional structural diagram of the middle frame provided by the first embodiment of the present application.
  • Figure 10 is a schematic cross-sectional structural diagram of the backlight module provided by the second embodiment of the present application.
  • FIG. 11 is a schematic cross-sectional structural diagram of a backlight module provided by the third embodiment of the present application.
  • FIG. 1 is a schematic structural view of the backlight module of the present application
  • Figure 2 is a partially enlarged schematic view of area A in Figure 1
  • Figure 3 is a schematic cross-sectional view along section line B-B' in Figure 1; combined with Figures 1-3
  • the present application discloses a backlight module 100, which includes a backplane 110, a middle frame 120 and an adhesive 130.
  • the middle frame 120 is disposed on the backplane 110.
  • the backplane 110 and the middle frame 120 are A first glue-containing groove 140 is provided in between, and at least one glue hole 150 is provided on the middle frame 120.
  • One end of the glue hole 150 is connected to the first glue-containing groove 140, and the other end is in the middle frame 120.
  • An opening 160 is formed on the top of the first glue groove 140 , the glue hole 150 is disposed in the glue hole 150 , and the adhesive glue 130 protrudes from the top surface of the middle frame 120 .
  • this application provides a first glue-containing groove 140 between the back plate 110 and the middle frame 120, and At least one glue hole 150 is provided on the middle frame 120 .
  • One end of the glue hole 150 is connected to the first glue tank 140 , and the other end forms an opening 160 at the top of the middle frame 120 . In this way, the glue hole 150 can be injected into the first glue tank 140 .
  • a sufficient amount of adhesive 130 is used to adhere and fix the middle frame 120 and the back plate 110, and when the middle frame 120 is placed on the back plate 110 for pressing and pasting, the first glue groove 140 on the back plate 110 is
  • the adhesive 130 flows upward through the glue hole 150 of the middle frame 120 under the action of extrusion stress, rises to the opening 160 at the top of the middle frame 120, and then continues to spread outward, so that the adhesive 130 is filled with the first glue groove 140, Since the display panel 400 and the middle frame 120 need to be pasted and fixed at the glue holes 150 and the opening 160 at the top of the middle frame 120, the design only needs to apply adhesive glue 130 once to fix the middle frame 120 and the back panel 110. , and fixing the display panel 400 and the middle frame 120, thereby simplifying the assembly operation of the backlight module 100, realizing assembly automation, improving assembly efficiency, and improving assembly stability.
  • FIG. 4 is a schematic cross-sectional structural diagram of the display device of the present application
  • Figure 5 is a schematic diagram of the installation process of the display device of the present application
  • the present application also discloses a display device 10 and an assembly method of the display device 10.
  • the display device 10 includes a display panel 400 and a backlight module 100 as described above.
  • the display panel 400 is disposed on the top of a middle frame 120 in the backlight module 100 and is connected to the middle frame 120 through the adhesive. 130 paste fixed.
  • the specific installation steps of the display device 10 are as follows:
  • S3 Place the display panel on the top of the middle frame, and stick it to the middle frame through the adhesive glue.
  • the display device assembly can be automated and the display device assembly efficiency can be improved.
  • battery tape can also be pasted on the outer wall of the back panel to partially paste and secure the back panel and the display panel to further strengthen the stability of the entire display device.
  • FIG 6 is a schematic structural diagram of the backplane provided by the first embodiment of the present application.
  • Figure 7 is a schematic cross-sectional view of the backplane 110 provided by the first embodiment of the present application along the cross-section line CC' of Figure 5.
  • the back plate 110 includes a bottom plate 111 and a side plate 112.
  • the bottom plate 111 is vertically connected to the side plate 112.
  • the bottom plate 111 is provided with a first groove 113.
  • the middle frame 120 is connected to the bottom plate 111.
  • a second groove 121 is provided on the adjacent side of 111.
  • the first groove 113 and the second groove 121 are arranged correspondingly to form the first glue-containing groove 140.
  • the adhesive 130 can be made of silicone.
  • the adhesive glue 130 can be injected into the entire surface during dispensing.
  • the height of the adhesive glue 130 needs to be injected to protrude 1-3 mm from the top surface of the bottom plate 111, that is, the injection amount of the adhesive glue 130 is relatively large.
  • the second groove 121 is not provided at the position of the middle frame 120 corresponding to the first groove 113 (that is, the side of the middle frame 120 that is in contact with the bottom plate 111 is a plane), then place the middle frame 120 corresponding to
  • the back plate 110 is pressed and pasted, due to the extrusion stress of the adhesive 130 in the first groove 113, part of the adhesive 130 will flow upward in the direction of the glue hole 150, while the other part of the adhesive 130 will directly contact the middle.
  • the flat surface of the frame is directly squeezed after contact. That is, there is not enough accommodation space on one side of the middle frame 120 to buffer the extrusion pressure. Then this part of the adhesive 130 easily overflows into the gap between the middle frame and the bottom plate, causing Glue leakage will increase the difficulty of cleaning and affect the efficiency of subsequent assembly.
  • the adhesive 130 can also be made of other rubber materials. As long as the stability of the middle frame and back panel can be ensured after they are pasted and fixed.
  • the depth of the first groove 113 is less than or equal to 0.2mm.
  • the depth of the first groove 113 can also be set to greater than 0.2mm, and then the side of the middle frame 120 that is in contact with the bottom plate 111 can also be set as a flat surface.
  • the first groove 113 has a larger space for accommodating the pasting glue 130 , which can avoid glue overflow as much as possible.
  • FIG 8 is a schematic diagram of the arrangement of the glue holes on the middle frame provided by the first embodiment of the present application.
  • the glue holes 150 include a plurality of sub-glue holes 151, and the plurality of sub-glue holes 151 151 is evenly distributed along the edge of the middle frame 120. On the one hand, it can further divert the glue 130 in the first glue tank 140 and prevent the glue 130 from overflowing; on the other hand, it can save glue more.
  • the adhesive glue 130 enters the plurality of sub-glue holes 151, so that a relatively small amount of adhesive glue 130 can be used to fix the middle frame 120 and the back plate 110, not only through the bottom of the middle frame 120 and the back plate 110 , and is also fixed through the glue holes 150 to further improve the stability of the middle frame 120 and the back plate 110 after being pasted together, so that the middle frame 120 is not easy to fall off.
  • the distance between each two glue holes 150 is 15mm-30mm, which can be set according to the size of the backlight module 100, so that it can achieve a more stable effect while saving glue. .
  • the first glue-containing groove 140 can be formed by opening a large through groove on the back plate 110 and the middle frame 120 respectively, and then the manufacturing process is relatively simple.
  • the pasting area of 120 is also relatively large, and the pasting stability is higher; of course, grooves can also be spaced on the back plate 110 and the middle frame 120 to form a plurality of first glue-containing grooves 140 correspondingly, and a plurality of first glue-containing grooves 140 corresponds to multiple sub-glue holes 151 one-to-one, so that when dispensing glue, you only need to dispense glue in each corresponding slot, which can save the use of glue while achieving stability.
  • the two spaced sub-glue holes 151 are not on a horizontal line.
  • the plurality of sub-glue holes 151 are arranged in a staggered arrangement around the middle frame 120 in the direction of the middle frame 120, that is, in this way
  • the adhesive 130 in the glue hole 150 can form a stabilizing force at different positions in the glue hole 150 between the middle frame 120 and the back plate 110 after the middle frame 120 and the back plate 110 are fixed, thereby increasing the connection between the middle frame 120 and the back plate 110 .
  • the stability of the board 110 is ensured, and the adhesive 130 reaches the top of the middle frame 120 after passing through each sub-glue hole 151.
  • the display panel 400 When the display panel 400 is placed on the top of the middle frame 120 for bonding and fixation, the display panel can also be The bonding surface of the display panel 400 forms a stabilizing force at different positions, which further ensures the stability of the subsequent assembly and pasting of the display panel 400 .
  • the glue hole 150 is a circular hole, so that the glue 130 overflows through the glue hole 150 relatively uniformly. After reaching the top of the middle frame 120 and exiting, it approaches the display panel 400 The display panel 400 and the middle frame 120 are adhered to each other with a higher degree of fit and more uniform stability. Among them, the diameter of the glue hole 150 is 1-2mm.
  • each glue hole 150 has a diameter of 1-2mm, the distance between each glue hole 150 is 15mm- The 30mm fit can ensure that the glue 130 in the first glue tank 140 has a good pressure when it overflows through the glue hole 150, ensuring the uniformity of the overflow, and the overflow speed is relatively uniform and slow to prevent The glue 130 is pressed out of the glue hole 150 due to excessive pressure, causing overflow.
  • the glue holes 150 can also be in other shapes, such as rectangles, triangles or other polygons, and can also be disposed without misalignment, so that multiple sub-glue holes 151 can be arranged in a single row.
  • the glue hole 150 can also be set as a strip groove that directly penetrates the middle frame 120 , that is, a large through groove is formed on the middle frame 120 , and is arranged around the middle frame 120 along the direction in which the middle frame 120 is provided. , which is more convenient in terms of manufacturing process and can be completed directly through one manufacturing process.
  • Figure 9 is a schematic cross-sectional structural diagram of the middle frame provided by the first embodiment of the present application.
  • the backlight module 100 also includes a glue overflow groove 170 , the glue overflow groove 170 is provided between the side plate 112 and the middle frame 120 , wherein the glue overflow groove 170 is provided on the middle frame 120 and is opposite to the side plate 112 .
  • the glue 130 in the first glue groove 140 when the glue 130 in the first glue groove 140 is squeezed by the middle frame 120, a part of the glue 130 will rise toward the top of the middle frame 120 along the glue holes 150 and be located on the back panel.
  • the glue 130 at the joint between the bottom plate 111 and the side plate 112 of 110 may flow in the direction of the right angle formed by the connection between the bottom plate 111 and the side plate 112 due to the effect of pressure, and due to the existence of the first glue-containing groove 140
  • the adhesive hole 150 diverts part of the adhesive 130. At this time, the adhesive 130 flowing to the bottom plate 111 can have enough accommodation space, and the possibility of overflow is small.
  • the glue overflow groove 170 is provided on the middle frame 120, which can provide a buffer space for the glue 130 flowing toward the side panel 112, preventing the glue 130 from overflowing here, and the glue overflow groove 170 diverts part of the glue. 130, the glue 130 that passes through the glue hole 150 at the same time will be relatively smaller, which also avoids the problem of the glue hole 150 being blocked by excessive glue 130.
  • the adhesive glue 130 that enters the glue overflow groove 170 at this time can also be pasted with the side panel 112 and then solidified, further improving the gap between the middle frame 120 and the back panel 110. fixed.
  • the glue overflow groove 170 can also be provided on the side plate 112, which can also prevent glue from overflowing.
  • the size and shape of the glue overflow groove 170 can be set according to actual needs.
  • a protrusion 180 is provided between the glue overflow groove 170 and the first glue containing groove 140 , and the protrusion 180 between the glue overflow groove 170 and the first glue containing groove 140 is in contact with the side A gap is formed between the plates 112.
  • the glue overflow groove 170 and the first glue containing groove 140 are connected through the gap between the protrusion 180 and the side plate 112. On the one hand, the glue flows toward the side plate 112. The adhesive glue 130 can only slowly enter the overflow glue groove 170 through this gap. On the other hand, due to the existence of the protrusion 180, the adhesive glue 130 flowing toward the side plate 112 will be blocked by the protrusion 180, and then part of the adhesive glue 130 will flow toward the side plate 112.
  • the directional flow of the first glue tank 140 squeezes more glue 130 and flows into the glue hole 150 and then rises to the top of the middle frame 120 , providing sufficient adhesive for subsequent bonding and fixation of the display panel 400 and the middle frame 120 .
  • the adhesive 130 is applied to ensure the installation stability of the entire display device 10 .
  • the glue overflow groove 170 can also be provided on the side panel 112 on the side adjacent to the middle frame 120. It is also connected to the first glue containing groove 140 through a gap, which can also prevent the middle frame 120 from being connected to the back. When the board 110 is bonded and fixed, the adhesive 130 in the first adhesive groove 140 may overflow through the gap between the middle frame 120 and the back plate 110 .
  • the side of the second groove 121 away from the side plate 112 is a hypotenuse, that is, the hypotenuse is not the same as the side corresponding to the first groove 113 .
  • a cavity 122 with a triangular cross-section is formed between the hypotenuse and the bottom plate 111.
  • the adhesive 130 will first flow in the direction of the bottom plate 111, and then flow in the direction of the gap between the middle frame 120 and the side plate 112 and the gap between the middle frame 120 and the bottom plate 111.
  • the glue 130 is pressed
  • the glue 130 that wants to flow downward toward the gap between the middle frame 120 and the bottom plate 111 will first flow along the hypotenuse of the cavity 122 , be blocked by the cavity 122 , and then flow back to the first glue container. in slot 140.
  • a second glue-containing groove 190 is also provided.
  • the second glue-containing groove 190 is located on the side of the middle frame 120 away from the bottom plate 111 .
  • the groove 190 communicates with the first glue-containing groove 140 through the glue hole 150.
  • the second glue-containing groove 190 is provided with the adhesive glue 130, and the top surface of the adhesive glue 130 protrudes from the middle. The top surface of frame 120.
  • the second glue-containing tank 190 can accommodate the glue 130 that overflows from the first glue-containing tank 140 through the glue hole 150, so that the glue 130 that overflows from the glue hole 150 can be stored in the second glue tank 190, so that The adhesive 130 is less likely to overflow after reaching the top of the middle frame 120 , and the contact area between the adhesive 130 and the middle frame 120 is increased, thereby enhancing the stability between the middle frame 120 and the back panel 110 .
  • the second glue-containing groove 190 and the glue holes 150 are arranged in one-to-one correspondence, which can save the usage of the adhesive glue 130 .
  • the second adhesive 130 includes a fourth groove 191 and a fifth groove 192.
  • the fifth groove 192 is disposed above the fourth groove 191.
  • the fifth groove 192 is The area of the groove surface is greater than the area of the groove surface of the fourth groove 191 , the area of the groove surface of the fourth groove 191 is greater than the cross-sectional area of the glue hole 150 , and the fourth groove 191 The area of the groove surface gradually increases toward the fifth groove 192.
  • the adhesive 130 passes through the glue hole 150 and then rises to the outlet of the glue hole 150, due to the glue hole 150 It is a circular hole. At this time, the adhesive 130 that reaches the outlet of the glue hole 150 can spread outward in a circular shape. If the fourth groove 191 is not provided (that is, the fifth groove 192 is directly connected to the glue hole 150 150 is connected to the outlet), at this time, after the adhesive 130 reaches the outlet of the adhesive hole 150, it will directly flow out and spread out. The diffusion speed will be relatively fast.
  • the adhesive 130 will directly fill the entire second After the glue groove 190 continues to spread around, it is easy to cause the glue 130 to overflow; and due to the existence of the fourth groove 191, there is still a distance from the exit of the glue hole 150 to the groove surface of the fourth groove 191. When the glue is glued, When 130 reaches the exit, it will continue to rise and spread along the slope shape of the fourth groove 191. At this time, the diffusion speed of the adhesive 130 will be relatively slow and more uniform. Only after filling the entire fourth groove 191 first It will continue to spread to the fifth groove 192, so the possibility of the adhesive glue 130 overflowing is relatively low, which can prevent the adhesive glue 130 from overflowing.
  • conductive particles 300 are mixed into the adhesive glue 130 , and the adhesive glue 130 is used to connect with the ground wire in the display panel 400 .
  • the commonly used aluminum foil tape can be replaced with an ordinary polyester tape (PET tape), which greatly saves the cost of the product.
  • the conductive particles 300 are metal conductive particles.
  • Figure 10 is a schematic cross-sectional structural diagram of a backlight module provided by the second embodiment of the present application. As shown in Figure 10, the difference between this embodiment and the first embodiment is that the side plate 112 and the second groove 121 The corresponding side is provided with a third groove 114. The first groove 113, the second groove 121 and the third groove 114 form the first glue-containing groove 140, that is, the first glue-containing groove 140. A part of the groove 140 is located in the side plate 112.
  • the part in the first groove 113 After injecting the adhesive 130 into the first groove 113, and placing the middle frame 120 on the back plate 110 for pressing and pasting, the part in the first groove 113 will After the adhesive glue 130 flows toward the side plate 112, it will enter the third groove 114, and then slowly enter the glue overflow groove 170 through the gap between the protrusion 180 and the side plate 112, thereby reducing the amount of glue flowing toward the side plate.
  • the adhesive 130 flowing in the 112 direction may overflow, and such an arrangement can also increase the contact and adhesive area between the adhesive 130 and the side panel 112, thereby strengthening the connection between the middle frame 120 and the back panel 110.
  • the stability of the paste The stability of the paste.
  • the first groove 113 and the second groove 121 can be set to be relatively smaller, and the first groove 113 and the second groove 121 can be made correspondingly smaller.
  • the reduced area is added to the third groove 114, so that the first glue-containing groove 140 formed in this way achieves adhesive stability without increasing the originally designed amount of injected adhesive 130.
  • the third groove 114 can also be provided on the side plate 112 corresponding to the first groove 113 and the second groove 121, that is, the first groove 113 and the second groove 114 can also be provided on the side plate 112.
  • the opening of the groove formed by the grooves 121 toward the third groove 114 is similar in size to the opening of the third groove 114 , which is also more convenient in terms of manufacturing process.
  • Figure 11 is a schematic cross-sectional structural diagram of a backlight module provided by the third embodiment of the present application.
  • the difference between this embodiment and the first and second embodiments is that the middle frame 120 is in contact with the backplane 110.
  • a bump 200 is provided on one side of the sticker.
  • the cross section of the bump 200 is triangular.
  • a third groove 114 is provided on the side plate 112 corresponding to the bump 200.
  • the shape of the third groove 114 is similar to that of the bump 200.
  • the shapes of the bumps 200 correspond to each other. In this way, when the middle frame 120 and the back panel 110 are pasted and fixed, the bump 200 is inserted into the third groove 114.
  • the bump 200 is triangular, and the third groove 114 and With the cooperation, an attraction force is formed between the third groove 114 and the bump 200.
  • the bump 200 can be tightly fixed in the third groove 114 only through two-sided contact.
  • the adhesion is high and the middle
  • the frame 120 and the back plate 110 are not easy to loosen and fall off.
  • the glue overflow grooves 170 can be respectively provided on the middle frame 120 and the back plate 110. At least two of the glue overflow grooves 170 can be provided on the middle frame 120 and the back plate 110.
  • the glue overflow grooves 170 can be set correspondingly or in a staggered position to prevent the glue 130 from overflowing from the gap between the back plate 110 and the middle frame 120, and at the same time, it can also enhance the stability of the adhesive between the back plate 110 and the middle frame 120. .

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Abstract

本申请公开了一种背光模组(100)、显示装置(10)以及显示装置(10)的组装方法，所述背光模组(100)包括背板(100)、中框(120)和粘贴胶(130)，所述中框(120)设置在所述背板(100)上，所述背板(100)和所述中框(120)之间设有第一容胶槽(140)，所述中框(120)上设置至少一个过胶孔(150)，所述过胶孔(150)一端与所述第一容胶槽(140)相通，另一端在所述中框(120)的顶部形成开口。

Description

背光模组、显示装置以及显示装置的组装方法
本申请要求于2022年07月05日提交中国专利局，申请号为CN202210781393.9，申请名称为“背光模组、显示装置以及显示装置的组装方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及显示技术领域，尤其涉及一种背光模组、显示装置以及显示装置的组装方法。
背景技术
这里的陈述仅提供与本申请有关的背景信息，而不必然地构成现有技术；随着液晶显示装置因具有低辐射性、体积轻薄及耗电低等特点，已广泛应用于手机、笔记本电脑、个人电脑以及电视等领域。
笔记本电脑应用于网上远程办公或远程会议逐渐成为一种常态化的工作模式，人们在家就可轻松快捷处理日常工作。随着这种新颖、便捷的工作模式的推广与普及，市场对办公笔记本电脑的需求也越来越大。但目前笔记本液晶显示装置的制造和组装复杂，人力需求大，因此成本高，严重制约了其发展。
传统的笔记本液晶显示装置组装设计中，背光模组中的中框采用双面胶带粘贴，需提前撕除胶带一面的离型膜，再将胶带粘贴到背板上，再撕除背板上的胶带的另一面的离型膜，再将中框放置上去进行粘贴固定，这样的组装操作繁琐，人力需求大，而且稳固性较差；另外液晶显示面板的固定也是采用双面胶带来粘贴固定的，同中框与背板的固定方式一样，造成人力成本提高，且组装效率低下。
发明内容
本申请的目的是提供一种能够提高组装稳固性，且组装效率高的背光模组、显示装置以及显示装置的组装方法。
本申请公开了一种背光模组,包括背板、中框和粘贴胶，所述中框设置在所述背板上，所述背板和所述中框之间设有第一容胶槽，所述中框上设置至少一个过胶孔，所述过胶孔一端与所述第一容胶槽相通，另一端在所述中框的顶部形成开口；其中，所述粘贴胶设置在所述第一容胶槽中、所述过胶孔内并从所述中框的顶面凸出。
本申请在背板和中框之间设第一容胶槽，且在中框上设置至少一个过胶孔，过胶孔一端与第一容胶槽相通，另一端在中框的顶部形成开口，这样能够通过在第一容胶槽内注入足够量的粘贴胶，将中框与背板进行粘贴固定，而且在将中框放置在背板上进行压合粘贴时，背 板上第一容胶槽内的粘贴胶在挤压应力的作用下通过中框的过胶孔向上流动，上升到中框的顶部的开口后继续往外扩散，使粘贴胶布满第一容胶槽、过胶孔以及中框顶部的开口处，且粘贴胶的顶面凸出，由于后续还需要将显示面板与中框进行粘贴固定，这样设计只需要涂一次粘贴胶就可以将中框和背板固定，以及将显示面板与中框固定，从而在简化背光模组的组装操作的同时，实现组装自动化，提高组装效率，且提高组装的稳固性。
附图说明
图1是本申请的背光模组的结构示意图；
图2是图1中A区域的局部放大示意图；
图3是图1中沿截面线B-B’的截面示意图；
图4是本申请的显示装置的截面结构示意图；
图5是本申请的显示装置的安装流程示意图；
图6是本申请第一实施例提供的背板的结构示意图；
图7是本申请第一实施例提供的背板沿图5的截面线C-C’的截面示意图；
图8是本申请第一实施例提供的过胶孔在中框上的排列示意图；
图9是本申请第一实施例提供的中框的截面结构示意图；
图10是本申请第二实施例提供的背光模组的截面结构示意图；
图11是本申请第三实施例提供的背光模组的截面结构示意图。
具体实施方式
图1是本申请的背光模组的结构示意图；图2是图1中A区域的局部放大示意图；图3是图1中沿截面线B-B’的截面示意图；结合图1-图3，本申请公开了一种背光模组100，包括背板110、中框120和粘贴胶130，所述中框120设置在所述背板110上，所述背板110和所述中框120之间设有第一容胶槽140，所述中框120上设置至少一个过胶孔150，所述过胶孔150一端与所述第一容胶槽140相通，另一端在所述中框120的顶部形成开口160；其中，所述粘贴胶130设置在第一容胶槽140中、所述过胶孔150内并从所述中框120的顶面凸出。
相对于在中背光模组100的中框120与背板110的固定采用双面胶带粘贴的方案来说，本申请在背板110和中框120之间设第一容胶槽140，且在中框120上设置至少一个过胶孔150，过胶孔150一端与第一容胶槽140相通，另一端在中框120的顶部形成开口160，这样能够通过在第一容胶槽140内注入足够量的粘贴胶130，将中框120与背板110进行粘贴固定，而且在将中框120放置在背板110上进行压合粘贴时，背板110上的第一容胶槽140 内的粘贴胶130在挤压应力的作用下通过中框120的过胶孔150向上流动，上升到中框120的顶部的开口160后继续往外扩散，使粘贴胶130布满第一容胶槽140、过胶孔150以及中框120顶部的开口160处，由于后续还需要将显示面板400与中框120进行粘贴固定，这样设计只需要涂一次粘贴胶130就可以将中框120和背板110固定，以及将显示面板400与中框120固定，从而在简化背光模组100的组装操作的同时，实现组装自动化，提高组装效率，且提高组装的稳固性。
图4是本申请的显示装置的截面结构示意图；图5是本申请的显示装置的安装流程示意图；如图4所示，本申请还公开了一种显示装置10以及显示装置10的组装方法，所述显示装置10包括显示面板400以及如上所述的背光模组100，所述显示面板400设置在所述背光模组100中中框120的顶部，与所述中框120通过所述粘贴胶130粘贴固定。如图5所示，所述显示装置10具体的安装步骤如下：
S1：在背板上对应第一容胶槽的位置注入粘贴胶；
S2：将中框放在背板上，挤压粘贴胶，使粘贴胶通过过胶孔流至中框的顶部；
S3：将显示面板放入所述中框的顶部，与所述中框通过所述粘贴胶粘贴固定。
通过这样的设计，能够实现显示装置组装的自动化，提高显示装置的组装的效率。其中，当将所述显示面板粘贴固定后，还可以在所述背板外壁粘贴电池胶带，将背板与显示面板部分粘贴固定，进一步加固整个显示装置的稳固性。
下面参考附图和可选地实施例对本申请的背光模组作详细说明。
第一实施例：
图6是本申请第一实施例提供的背板的结构示意图，图7是本申请第一实施例提供的背板110沿图5的截面线C-C’的截面示意图，结合图6-图7，所述背板110包括底板111和侧板112，所述底板111与所述侧板112垂直连接，所述底板111上设有第一凹槽113，所述中框120与所述底板111相贴的一侧设有第二凹槽121，所述第一凹槽113与所述第二凹槽121对应设置形成所述第一容胶槽140。其中，所述粘贴胶130可以采用硅胶。
由于硅胶在液态的状态下流动性比较差，如果采用从中框上打孔后，利用孔往下注胶的方式，那么这样灌注的硅胶到达至背板底部需要花很长的时间，且无法预知是否注入至底部且注入均匀，后续粘贴时可能出部局部没有粘贴到位的情况，因此，本申请先在底板111上形成第一凹槽113后，能够在点胶时将粘贴胶130注入满整个第一凹槽113，而且为了保证在中框120与背板110粘贴后，第一凹槽113内的粘贴胶130有足够的量能够通过过胶孔150后上升至中框120的顶面上，因此，此时在第一凹槽113内进行点胶注入时，需要将粘贴胶130的高度注入得凸出于底板111的顶面1-3mm，也就是粘贴胶130的注入的量比较大，那么，如果中框120对应第一凹槽113的部位不设置第二凹槽121的话(即中框120与底板111 相贴的一侧为一平面)，那么在将中框120对应放在背板110上进行压紧粘贴时，第一凹槽113内的粘贴胶130由于挤压应力的作用，一部分粘贴胶130会往过胶孔150方向流动上升，而另一部分粘贴胶130直接与中框的平面抵接后被直接挤压，即中框120的一侧没有足够的容纳空间能够来缓冲挤压的压力，那么这一部分粘贴胶130容易往中框与底板之间的缝隙溢出，造成漏胶的情况，这样反而增加清洁的困难，影响后续组装的效率。
当然，所述粘贴胶130也可以采用其它的橡胶材料。只要能够保证中框与背板粘贴固定后的稳固性即可。
其中，所述第一凹槽113的深度小于等于0.2mm。当然，也可以将所述第一凹槽113的深度设置得大于0.2mm，然后将所述中框120与底板111相贴的一侧设置为平面也是可以的，这样在将中框120与背板110进行挤压粘贴时，第一凹槽113能够容纳粘贴胶130的空间就较大，能够尽量避免溢胶的情况发生。
图8是本申请第一实施例提供的过胶孔在中框上的排列示意图，如图8所示，所述过胶孔150包括多个子过胶孔151，多个所述子过胶孔151沿所述中框120的边缘均匀分布，一方面能够进一步将第一容胶槽140内的粘贴胶130进行分流的作用，防止粘贴胶130外溢的情况发生；另一方面，能够更省胶，粘贴胶130进入到多个子过胶孔151内，这样通过比较少量的粘贴胶130就能够达到中框120与背板110之间的固定，不仅通过中框120的底部与背板110进行固定，而且还通过过胶孔150进行固定，进一步提高中框120与背板110之间粘贴后的稳固性，使得中框120不易脱落。结合图1，其中每两个过胶孔150之间的距离为15mm-30mm，具体可以根据背光模组100的大小来设定，使之在省胶的同时又能达到更加稳固的效果即可。本实施例中，所述第一容胶槽140可以为在背板110上以及中框120上，分别开一个大的通槽对合后形成，这样制程上比较简单，背板110与中框120的粘贴面积也比较大，粘贴稳固性更高；当然也可以是在背板110以及中框120上间隔开槽，对应形成多个第一容胶槽140，且多个第一容胶槽140与多个子过胶孔151一一对应，这样点胶时只需要在对应的每一个槽内点胶即可，在达到稳固性的同时能够节省粘贴胶的使用量。
由图8可知，间隔设置的两个子过胶孔151之间不在一条水平线上，这样多个所述子过胶孔151在中框120上环绕中框120的设置方向错位排列设置，即这样过胶孔150内的粘贴胶130能够在中框120与背板110固定后，在中框120与背板110之间的过胶孔150内形成不同位置的稳固力，从而增加中框120与背板110的稳固性，而且粘贴胶130穿过每一个子过胶孔151后到达中框120的顶部，当将显示面板400放入中框120的顶部进行粘接固定后，也能够对显示面板400的粘接面形成不同位置的稳固力，为后续显示面板400组装粘贴的稳固性提供了进一步的保障。
进一步的，如图8所示，所述过胶孔150为圆形孔，这样粘贴胶130液通过过胶孔150 上溢时比较均匀，在到达中框120的顶部出去后，靠近显示面板400侧呈现一个圆形状态处四周扩散，在中框的顶部形成的粘贴胶也是圆形状的，这样使显示面板400与中框120粘贴时的贴合度更高，稳固性更均匀。其中，所述过胶孔150的直径为1-2mm，发明人经过多次实验，当每一个过胶孔150采用直径为1-2mm大小，与每一个过胶孔150之间的距离15mm-30mm配合，能够保证第一容胶槽140内的粘贴胶130通过过胶孔150上溢时有一个很好的压力，保证上溢的均匀性，且上溢的速度相对较均匀和缓慢，防止粘贴胶130压力过大冲出过胶孔150造成外溢。当然，所述过胶孔150也可以为其它的形状，比如矩形、三角形或其它多边形等，而且也可以不错位设置，使多个子过胶孔151呈单排排列，也是可以的。另外，所述过胶孔150也可以设置为一个条形槽，直接贯穿所述中框120，即在所述中框120上形成一个大的通槽，且沿中框120设置的方向环绕设置，这样在制程上比较方便，直接通过一道制程就可以完成。
图9是本申请第一实施例提供的中框的截面结构示意图，如图9所示，结合图3，为了进一步防止粘贴胶130外溢的问题，所述背光模组100还包括溢胶槽170，所述溢胶槽170设置在所述侧板112与所述中框120之间，其中，所述溢胶槽170设置在所述中框120上，且与所述侧板112相对设置。
安装中框120时，当第一容胶槽140内的粘贴胶130受到中框120的挤压后，一部分粘贴胶130会顺着过胶孔150往中框120的顶部上升，而位于背板110的底板111与侧板112相接位置的粘贴胶130，则可能会由于压力的作用，往底板111与侧板112相接形成的直角的方向流动，而由于第一容胶槽140的存在加上过胶孔150分流一部分的粘贴胶130，此时往底板111流动的粘贴胶130能够有足够的容纳空间，产生外溢的可能性较小，而往侧板112流动的粘贴胶130，则可能会顺着侧板112与中框120相贴的一侧往上流出，发生外溢的可能性较大。因此在中框120上设置溢胶槽170，能够提供一个给往侧板112流动的粘贴胶130的缓冲空间，防止此处粘贴胶130发生外溢的问题，而且溢胶槽170分流了部分粘贴胶130，过胶孔150同时通入的粘贴胶130会相对小一点，也避免过胶孔150被过量粘贴胶130堵塞的问题。同时，由于溢胶槽170是与侧板112相贴的，此时进入溢胶槽170的粘贴胶130也能够与侧板112粘贴后凝固固定，进一步提高中框120与背板110之间的固定。而所述溢胶槽170也可以设置在所述侧板112上，同样也可以起到防止粘贴胶外溢的情况，而溢胶槽170的大小及形状具体可以根据实际情况需要来设置。
而由于挤压力的作用，粘贴胶130流动的速度会相对加快，如果溢胶槽170与第一容胶槽140之间是完全贯穿的话，那么此时，往侧板112流动的粘贴胶130很快就充满至整个溢胶槽170，在挤压力没有减小的情况下，这一部分粘贴胶130还会继续往上流动，那么此时溢胶槽170就无法达到防止粘贴胶130外溢的情况，因此，本实施例在所述溢胶槽170与所 述第一容胶槽140之间设有凸起180，溢胶槽170与第一容胶槽140之间的凸起180与侧板112之间形成有间隙，所述溢胶槽170与所述第一容胶槽140通过所述凸起180和所述侧板112之间的间隙相连通，一方面往侧板112流动的粘贴胶130只能通该间隙缓慢的进入溢胶槽170，另一方面由于凸起180的存在，往侧板112流动的粘贴胶130，会被凸起180阻挡后，分流部分粘贴胶130往第一容胶槽140的方向流，将更多的粘贴胶130挤压后流入过胶孔150后上升至中框120的顶部，为后续显示面板400与中框120的粘接固定提供足够的粘贴胶130，保证整个显示装置10的安装稳固性。
当然，所述溢胶槽170也可以设置在侧板112上，位于与中框120相贴的一侧，同样通过一间隙与第一容胶槽140相连通，也能够防止当中框120与背板110粘接固定时，第一容胶槽140内的粘贴胶130通过中框120与背板110之间的缝隙发生外溢的可能。
另外，如图9所示，结合图3，所述第二凹槽121远离所述侧板112的侧边为斜边，即所述斜边与所述第一凹槽113对应的侧边不相互垂直，所述斜边与所述底板111之间形成一截面为三角形的空腔122，由于在背板110上注入粘贴胶130时，为了保证注入的粘贴胶130足够被挤压后通过过胶孔150上溢至第二容胶槽190内，粘贴胶130注入的高度要高于整个第一凹槽113的槽深，因此，当将中框120放入背板110上进行粘贴固定时，粘贴胶130由于压力的作用会先向底板111的方向流，然后朝向中框120与侧板112之间的缝隙以及中框120与底板111之间的缝隙的方向流，此时，被压后向下欲往中框120与底板111之间的缝隙的方向流动的粘贴胶130，会先流着该空腔122的斜边方向流，被该空腔122阻挡后回流至第一容胶槽140内。
根据图9所示，本实施例中，还设置有第二容胶槽190，所述第二容胶槽190位于所述中框120背离所述底板111的侧面上，所述第二容胶槽190通过所述过胶孔150与所述第一容胶槽140相通，所述第二容胶槽190内设有所述粘贴胶130，所述粘贴胶130的顶面凸出所述中框120的顶面。这样第二容胶槽190能够容纳从第一容胶槽140通过过胶孔150溢出的粘贴胶130，使粘贴胶130从过胶孔150溢出后能够存储在第二容胶槽190内，使粘贴胶130到达中框120顶部后不容易发生外溢，而且增大了粘贴胶130与中框120的接触面积，从而增强了中框120与背板110之间的稳固性。
其中，所述第二容胶槽190与所述过胶孔150一一对应设置，这样能够省节粘贴胶130的使用量。而且由图9可知，第二粘贴胶130包括第四凹槽191和第五凹槽192，所述第五凹槽192设置在所述第四凹槽191上方，所述第五凹槽192的槽面的面积大于所述第四凹槽191的槽面的面积，所述第四凹槽191的槽面的面积大于所述过胶孔150的横截面面积，且所述第四凹槽191的槽面的面积是往靠近所述第五凹槽192的方向逐渐递增的，当所述粘贴胶130通过所述过胶孔150后上升至过胶孔150的出口时，由于过胶孔150本身为圆形孔， 此时到达过胶孔150的出口的粘贴胶130本身就能呈现一个圆形状向外扩散，如果没有设置第四凹槽191(即第五凹槽192直接与过胶孔150的出口相通)，此时粘贴胶130到达该过胶孔150的出口后，直接涌出四周扩散出去，扩散的速度相对会较快，一不小心，粘贴胶130就会直接充满整个第二容胶槽190后继续往四周扩散，容易造成粘贴胶130外溢；而由于第四凹槽191的存在，过胶孔150的出口至第四凹槽191的槽面还有一段距离，当粘贴胶130到达该出口时，会顺着第四凹槽191的坡形形状继续上升扩散，此时，粘贴胶130扩散的速度就会相对减缓且更均匀，只有先充满整个第四凹槽191后才会继续扩散至第五凹槽192，因此，产生粘贴胶130外溢的可能性相对较低，能够防止粘贴胶130外溢情况的发生。
另外，所述粘贴胶130中混入有导电粒子300，所述粘贴胶130用于与显示面板400中的接地线连通。这样在显示面板400粘贴固定后，在背板110的外壁粘贴电池胶带500时，可以将常用的铝箔胶带替换为普通的聚酯胶带(Polyester tape，简称PET胶带)，极大节省产品的成本。其中，所述导电粒子300为金属导电粒子。
第二实施例：
图10是本申请第二实施例提供的背光模组的截面结构示意图，如图10所示，本实施例与第一实施例不同的是，所述侧板112与所述第二凹槽121对应的一侧设有第三凹槽114，所述第一凹槽113、第二凹槽121与所述第三凹槽114形成所述第一容胶槽140，即所述第一容胶槽140有一部分位于所述侧板112内，这样注入粘贴胶130到第一凹槽113内后，将中框120放入背板110上进行压紧粘贴时，第一凹槽113内的部分粘贴胶130往侧板112的方向流动后会进入第三凹槽114，进而再通过所述凸起180与所述侧板112之间的间隙缓慢进入溢胶槽170内，从而减少往侧板112方向流动的粘贴胶130外溢的情况发生，而且这样设置还能够增加所述粘贴胶130与所述侧板112的接触粘贴的面积，进而增强所述中框120与所述背板110之间的粘贴的稳固性。当然，本实施例中如果为了节省粘贴胶130，可以将第一凹槽113与第二凹槽121对应形的槽设置得相对小一些，对应的将第一凹槽113和第二凹槽121减小的面积增加在第三凹槽114上，这样形成的第一容胶槽140在达到粘贴稳固性的同时，不需要增加原本设计的注入的粘贴胶130的量。
另外，所述第三凹槽114还可以设置在与所述第一凹槽113和第二凹槽121形的槽对应的侧板112上，即所述第一凹槽113与所述第二凹槽121共通形成的槽朝向第三凹槽114的开口与所述第三凹槽114的开口大小相当，这样在制程上也比较方便。
第三实施例：
图11是本申请第三实施例提供的背光模组的截面结构示意图，如图11所示，本实施例与第一和第二实施例不同的是，所述中框120与背板110相贴的一侧设有凸块200，所述凸块200的横截面为三角形，所述侧板112上对应所述凸块200设置第三凹槽114，所述第三 凹槽114的形状与所述凸块200的形状相对应。这样当将所述中框120与所述背板110进行粘贴固定时，所述凸块200插入所述第三凹槽114内，由于所述凸块200为三角形，且第三凹槽114与之配合，此时第三凹槽114与凸块200之间形成一个吸合力，仅通过两面接触，就能够将凸块200紧紧的固定在第三凹槽114内，粘合度高，中框120与背板110之间不容易松动脱落。
当然，此时为了缓解凸块200与背板110之间的粘贴胶130从缝隙发生外溢，可以在所述中框120以及背板110上分别设置所述溢胶槽170，至少两个所述溢胶槽170可以对应设置，也可以错位设置，在防止粘贴胶130从背板110与中框120相贴的缝隙产生外溢，同时还能够增强背板110与中框120之间粘贴的稳固性。
需要说明的是，本方案中涉及到的各步骤的限定，在不影响具体方案实施的前提下，并不认定为对步骤先后顺序做出限定，写在前面的步骤可以是在先执行的，也可以是在后执行的，甚至也可以是同时执行的，只要能实施本方案，都应当视为属于本申请的保护范围。
需要说明的是，以上内容是结合具体的可选实施方式对本申请所作的进一步详细说明，不能认定本申请的具体实施只局限于这些说明。对于本申请所属技术领域的普通技术人员来说，在不脱离本申请构思的前提下，还可以做出若干简单推演或替换，都应当视为属于本申请的保护范围。

Claims (17)

  1. 一种背光模组，包括：
    背板；
    中框，设置在所述背板上；其中，还包括粘贴胶，所述背板和所述中框之间设有第一容胶槽，所述中框上设置至少一个过胶孔，所述过胶孔一端与所述第一容胶槽相通，另一端在所述中框的顶部形成开口；
    其中，所述粘贴胶设置在所述第一容胶槽中，所述中框放置在所述背板上进行压合粘贴，所述背板上第一容胶槽内的所述粘贴胶通过所述过胶孔流至所述中框的顶部的开口后继续往外扩散，使所述粘贴胶布满所述第一容胶槽、所述过胶孔内以及所述中框顶部的开口处，并从所述中框的顶面凸出。
  2. 根据权利要求1所述的背光模组，其中，所述背板包括底板和侧板，所述底板与所述侧板垂直连接，所述底板上设有第一凹槽，所述中框与所述底板相贴的一侧设有第二凹槽，所述第一凹槽与所述第二凹槽对应设置形成所述第一容胶槽；或
    所述背板包括底板和侧板，所述底板与所述侧板垂直连接，所述底板上设有第一凹槽，所述中框与所述底板相贴的一侧设有第二凹槽，所述第二凹槽与所述第一凹槽对应设置，所述侧板与所述第二凹槽对应的一侧设有第三凹槽，所述第一凹槽、第二凹槽与所述第三凹槽形成所述第一容胶槽。
  3. 根据权利要求2所述的背光模组，其中，所述背光模组还包括溢胶槽，所述溢胶槽设置在所述侧板与所述中框之间。
  4. 根据权利要求3所述的背光模组，其中，所述溢胶槽设置在所述中框上，且与所述侧板相对设置；所述溢胶槽与所述第一容胶槽之间设有凸起，所述凸起与所述侧板之间有间隙，所述溢胶槽与所述第一容胶槽通过所述凸起和所述侧板之间的间隙相连通。
  5. 根据权利要求1所述的背光模组，其中，所述过胶孔包括多个子过胶孔，多个所述子过胶孔沿所述中框的边缘分布，多个所述子过胶孔错位设置。
  6. 根据权利要求1所述的背光模组，其中，所述中框背离所述底板的一端设有第二容胶槽，所述第二容胶槽通过所述过胶孔与所述第一容胶槽相通，所述第二容胶槽内设有所述粘贴胶。
  7. 根据权利要求1所述的背光模组，其中，所述粘贴胶中混入有导电粒子，所述粘贴胶用于与显示面板中的接地线连通。
  8. 根据权利要求2所述的背光模组，其中，所述过胶孔为圆形。
  9. 根据权利要求3所述的背光模组，其中，所术溢胶槽设置在所述侧板上，且与所述 中框相对设置；所述溢胶槽与所述第一容胶槽之间设有凸起，所述凸起与所述中框之间有间隙，所述溢胶槽与所述第一容胶槽通过所述凸起和所述中框之间的间隙相连通。
  10. 根据权利要求2所述的背光模组，其特征在于，所述第二凹槽远离所述侧板的侧边为斜边，所述斜边与所述第一凹槽对应的侧边不相互垂直，所述斜边与所述底板之间形成一截面为三角形的空腔。
  11. 根据权利要求8所述的背光模组，其中，所述过胶孔的直径为1-2mm，每一个过胶孔之间的距离15mm-30mm。
  12. 根据权利要求2所述的背光模组，其中，所述第二容胶槽包括第四凹槽和第五凹槽，所述第五凹槽设置在所述第四凹槽上方，所述第五凹槽的槽面的面积大于所述第四凹槽的槽面的面积，所述第四凹槽的槽面的面积大于所述过胶孔的横截面面积。
  13. 根据权利要求12所述的背光模组，其中，所述第四凹槽的槽面的面积，沿靠近所述第五凹槽的方向递增。
  14. 根据权利要求1所述的背光模组，其中，所述中框与背板相贴的一侧设有凸块，所述凸块的横截面为三角形，所述侧板上对应所述凸块设置第三凹槽，所述第三凹槽的形状与所述凸块的形状相对应。
  15. 一种背光模组，包括：
    背板；
    中框，设置在所述背板上；其中，还包括粘贴胶，所述背板和所述中框之间设有第一容胶槽，所述中框上设置至少一个过胶孔，所述过胶孔一端与所述第一容胶槽相通，另一端在所述中框的顶部形成开口；
    其中，所述粘贴胶设置在所述第一容胶槽中，所述中框放置在所述背板上进行压合粘贴，所述背板上第一容胶槽内的所述粘贴胶通过所述过胶孔流至所述中框的顶部的开口后继续往外扩散，使所述粘贴胶布满所述第一容胶槽、所述过胶孔内以及所述中框顶部的开口处，并从所述中框的顶面凸出；
    所述背板包括底板和侧板，所述底板与所述侧板垂直连接，所述底板上设有第一凹槽，所述中框与所述底板相贴的一侧设有第二凹槽，所述第一凹槽与所述第二凹槽对应设置形成所述第一容胶槽；或
    所述背板包括底板和侧板，所述底板与所述侧板垂直连接，所述底板上设有第一凹槽，所述中框与所述底板相贴的一侧设有第二凹槽，所述第二凹槽与所述第一凹槽对应设置，所述侧板与所述第二凹槽对应的一侧设有第三凹槽，所述第一凹槽、第二凹槽与所述第三凹槽形成所述第一容胶槽；所述背光模组还包括溢胶槽，所述溢胶槽设置在所述中框上，且与所述侧板相对设置；所述溢胶槽与所述第一容胶槽之间设有凸起，所述凸起与所述侧板之间有 间隙，所述溢胶槽与所述第一容胶槽通过所述凸起和所述侧板之间的间隙相连通；
    所述过胶孔包括多个子过胶孔，多个所述子过胶孔沿所述中框的边缘分布，多个所述子过胶孔错位设置。
  16. 一种显示装置，其中，包括显示面板以及背光模组，所述背光模组包括：
    背板；
    中框，设置在所述背板上；其中，还包括粘贴胶，所述背板和所述中框之间设有第一容胶槽，所述中框上设置至少一个过胶孔，所述过胶孔一端与所述第一容胶槽相通，另一端在所述中框的顶部形成开口；
    其中，所述粘贴胶设置在所述第一容胶槽中，所述中框放置在所述背板上进行压合粘贴，所述背板上第一容胶槽内的所述粘贴胶通过所述过胶孔流至所述中框的顶部的开口后继续往外扩散，使所述粘贴胶布满所述第一容胶槽、所述过胶孔内以及所述中框顶部的开口处，并从所述中框的顶面凸出；所述显示面板设置在所述背光模组中中框的顶部，与所述中框通过所述粘贴胶粘贴固定。
  17. 一种显示装置的组装方法，包括步骤：
    在背板上对应第一容胶槽的位置注入足够量的粘贴胶；
    将中框放在所述背板上，挤压所述粘贴胶，使所述中框与所述背板进行粘贴固定，同时，在将所述中框放置在所述背板上进行压合粘贴时，所述背板上第一容胶槽内的所述粘贴胶通过过胶孔流至所述中框的顶部的开口后继续往外扩散，使所述粘贴胶布满所述第一容胶槽、过胶孔以及所述中框顶部的开口处，且所述粘贴胶的顶面凸出；
    将显示面板放入所述中框的顶部，与所述中框通过所述粘贴胶粘贴固定。
PCT/CN2022/137206 2022-07-05 2022-12-07 背光模组、显示装置以及显示装置的组装方法 WO2024007526A1 (zh)

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