WO2023124703A1 - 背光模组和显示装置 - Google Patents

背光模组和显示装置 Download PDF

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Publication number
WO2023124703A1
WO2023124703A1 PCT/CN2022/134964 CN2022134964W WO2023124703A1 WO 2023124703 A1 WO2023124703 A1 WO 2023124703A1 CN 2022134964 W CN2022134964 W CN 2022134964W WO 2023124703 A1 WO2023124703 A1 WO 2023124703A1
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WO
WIPO (PCT)
Prior art keywords
backlight module
lamp
light structure
supplementary light
hole
Prior art date
Application number
PCT/CN2022/134964
Other languages
English (en)
French (fr)
Inventor
曾智
辛武根
袁海江
Original Assignee
绵阳惠科光电科技有限公司
惠科股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 绵阳惠科光电科技有限公司, 惠科股份有限公司 filed Critical 绵阳惠科光电科技有限公司
Priority to JP2023558289A priority Critical patent/JP2024510773A/ja
Priority to EP22913961.3A priority patent/EP4297002A1/en
Priority to KR1020237019287A priority patent/KR20230106166A/ko
Publication of WO2023124703A1 publication Critical patent/WO2023124703A1/zh

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    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V3/00—Globes; Bowls; Cover glasses
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V7/00—Reflectors for light sources
    • F21V7/04—Optical design
    • F21V7/05—Optical design plane
    • 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
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/302—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements characterised by the form or geometrical disposition of the individual elements
    • G09F9/3026—Video wall, i.e. stackable semiconductor matrix display modules
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2105/00—Planar light sources
    • F21Y2105/10—Planar light sources comprising a two-dimensional array of point-like light-generating elements
    • F21Y2105/14—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array
    • F21Y2105/16—Planar light sources comprising a two-dimensional array of point-like light-generating elements characterised by the overall shape of the two-dimensional array square or rectangular, e.g. for light panels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/10—Light-emitting diodes [LED]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals

Definitions

  • the present application relates to the field of display technology, in particular to a backlight module and a display device.
  • reflectors are installed on the lamp panels on both sides of the gap, and the gaps are covered by the reflectors, and then the reflectors are connected with the lamp panels.
  • the stress generated by the deformation of the lamp panel will be transferred to the reflector, causing the reflector to be damaged or loose relative to the lamp panel.
  • the purpose of this application is to provide a backlight module and a display device.
  • the spliced lamp panel in the backlight module deforms and generates stress, it will not exert stress on the light supplement structure at the gap, avoiding the supplementary light
  • the structure is damaged, and the light supplement structure is prevented from being loose relative to the spliced light panel.
  • the present application discloses a backlight module, which includes a spliced lamp panel, the spliced lamp panel includes a plurality of lamp panels, and the spliced lamp panel is formed by splicing a plurality of lamp panels, and there is a gap between two adjacent lamp panels , the backlight module further includes a supplementary light structure, the supplementary light structure has a fixed end and a free end, the fixed end is fixedly connected to one of the two adjacent lamp panels, and the supplementary light The structure covers the gap, and the free end is located on the other of the two adjacent lamp panels.
  • the present application also discloses a backlight module, which includes a spliced lamp panel, the spliced lamp panel includes a plurality of lamp panels, the multiple lamp panels are spliced to form the spliced lamp panel, and there are gaps between adjacent lamp panels , the backlight module also includes a supplementary light structure, the supplementary light structure covers the gap; the said supplementary light structure is provided with a plurality of through holes, and the plurality of through holes are divided into a third through hole and a fourth through hole.
  • Through holes second protrusions are provided on two adjacent lamp panels; the third through hole is connected to the second protrusion on one of the adjacent two lamp panels. part is fixedly connected; the fourth through hole is fixedly connected with the second protrusion on the other of the two adjacent lamp boards, and the material of the second protrusion is plastic.
  • the present application also discloses a display device, the display device includes a display panel and the above-mentioned backlight module, the backlight module and the display panel are arranged correspondingly, and the backlight module provides a backlight for the display panel ;
  • the backlight module also includes a spliced lamp panel, the spliced lamp panel includes a plurality of lamp panels, and a plurality of lamp panels are spliced to form the spliced lamp panel, and there are gaps between adjacent lamp panels, so
  • the backlight module further includes a supplementary light structure, and the supplementary light structure covers the gap.
  • this application sets up light supplementary structures at the corresponding positions of the gaps. Fill the gap of the spliced light board shown, and the light supplement structure is only fixedly connected to one of the light boards on both sides of the gap, and is not connected to the other light board.
  • the light board When deformation occurs, relative movement between the supplementary light structure and another lamp panel can occur, which prevents the deformation stress of the lamp panel from being applied to the supplementary light structure, causing damage to the supplementary light structure.
  • FIG. 1 is an exploded schematic diagram of a display device according to an embodiment of the present application
  • Fig. 2 is a cross-sectional view of a backlight module according to the first embodiment of the present application
  • Fig. 3 is a schematic diagram of the cooperation between the first through hole and the second through hole on the supplementary light structure of the first embodiment of the present application and the first protrusion on the lamp board;
  • Fig. 4 is the enlarged schematic view of area A in Fig. 3;
  • Fig. 5 is a schematic diagram of a spliced lamp panel according to the first embodiment of the present application.
  • Fig. 6 is the enlarged schematic view of area A in Fig. 5;
  • FIG. 7 is a cross-sectional view of a backlight module according to a second embodiment of the present application.
  • Fig. 8 is a top view of cooperation between a supplementary light structure and a spliced light panel according to the third embodiment of the present application.
  • connection should be understood in a broad sense, for example, it can be fixed connection, detachable connection, or integral connection; it can be mechanical connection, or It can be an electrical connection; it can be a direct connection, an indirect connection through an intermediary, or an internal communication between two components.
  • FIG. 1 is an exploded schematic diagram of a display device according to an embodiment of the present application.
  • a display device 10 is disclosed.
  • the display device 10 includes a display panel 600 and a backlight module 20.
  • the module 20 and the display panel 600 are arranged correspondingly, and the backlight module 20 provides a backlight for the display panel 600 .
  • the backlight module 20 includes a backplane 100 and a splicing light panel 200, the backplane 100 and the splicing light panel 200 are arranged correspondingly, and the display device 10 also includes an optical film 300, a plastic frame 400 and The foam 500, the back panel 100, the spliced lamp panel 200, the optical film 300, the foam 500 and the display panel 600 are stacked in sequence, and the plastic frame 400 surrounds the spliced lamp panel 200 and the optical film 300 , the edges of the foam 500 and the display panel 600 are arranged.
  • the backlight module further includes a supplementary light structure, the supplementary light structure covers the gaps between adjacent lamp panels, and is fixedly connected with the lamp panels, and supplements light to the gaps.
  • the specific implementation mode is as follows: Three examples are described.
  • Figure 2 is a cross-sectional view of a backlight module according to the first embodiment of the present application, which discloses a backlight module 20, which includes a splicing lamp panel 200, the The spliced light panel 200 includes a plurality of light panels 210, the multiple light panels 210 are spliced to form the spliced light panel 200, there is a gap 250 between two adjacent light panels 210, and the backlight module 20 also includes a supplementary light structure 220, the supplementary light structure 220 has a fixed end and a free end, the fixed end is fixedly connected to one of the two adjacent lamp panels 210, and the supplementary light structure 220 covers the gap 250, and the free end is located on the other lamp board 210 among the two adjacent lamp boards 210.
  • the supplementary light structure 220 By setting the supplementary light structure 220 at the corresponding position of the gap 250 to supplement the light on the gap 250 of the spliced lamp panel 200, and the supplementary light structure 220 is only connected to one of the lamps on both sides of the gap 250.
  • the board 210 is fixedly connected, and is not connected to another lamp board 210, that is, the supplementary light structure 220 is directly erected on the light-emitting surface of the other lamp board 210.
  • the supplementary light structure 220 When the lamp board 210 is deformed, the supplementary light structure 220 The relative movement between the light structure 220 and another lamp panel 210 can prevent the stress generated by the deformation of the lamp panel 210 from being applied to the supplementary light structure 220 , causing damage or loosening of the supplementary light structure 220 .
  • the fixing method between the supplementary light structure 220 and the lamp panel 210 can be pasted by adhesive tape or glue.
  • the present application provides a plurality of through holes on the supplementary light structure 220 , and the through holes are divided into a first through hole 221 and a second through hole 222 .
  • the light board 210 The first protruding part 211 is arranged on it, and the first through hole 221 is fixedly connected with the first protruding part 211; A protruding portion 211 is matched and connected, and a gap is provided between the second through hole 222 and the first protruding portion 211 .
  • the first through hole 221 corresponds to the fixed end of the supplementary light structure 220
  • the second through hole 222 corresponds to the free end of the supplementary light structure 220 .
  • a first through hole 221 is opened on the supplementary light structure 220, and the first through hole 221 is fixedly connected with the first protrusion 211 on a light board 210.
  • hole 222, the second through hole 222 is sleeved on the first protrusion 211 on the other adjacent lamp panel 210, and there is a gap between them, the gap is a safety distance, and the safety The distance is the distance that changes when the lamp board 210 is deformed when it expands with heat and contracts with cold. It can be understood that even if the lamp board 210 deforms, the first protrusion 211 on the other adjacent lamp board 210 will not change.
  • the method of fixedly connecting the raised part 211 and the first through hole 221 does not need to worry about the impact of the overflowing glue on the light board 210, and does not need to position the supplementary light structure 220 It is reconnected later, and it is more convenient to disassemble later, and it also has an auxiliary fixing effect on the lamp board.
  • the first protruding portion 211 protrudes from the supplementary light structure 220 through the through hole, since the optical film 300 is above the light board 210 , when the display device 10 is assembled, When the lamp board 210 and the optical film 300 are used, the support column 213 will be set between the lamp board 210 and the optical film 300. Cooperate with the supplementary light structure 220 for fixing, and when the supplementary light structure 220 is large, directly use the support column 213 on the lamp board 210 as the first raised portion 211 and the supplementary light structure 220 for fixing connect.
  • the support column 213 and the lamp panel 210 are integrally formed, so that the connection between the supplementary light structure 220 and the lamp panel 210 is more stable, and by setting a plurality of the first protrusions 211 , to directly support the optical film 300 , so that no supporting portion 213 is provided on the light board 210 .
  • first protrusions 211 there are multiple first protrusions 211 on each lamp board, and they are evenly arranged; the plurality of first protrusions 211 are arranged in one-to-one correspondence with the plurality of through holes.
  • the plurality of first protrusions 211 can replace the support portion 213 on the original lamp board, The optical film 300 is supported.
  • the first protruding portion 211 may be rectangular or circular, and the through hole is arranged in cooperation with the first protruding portion.
  • the height of the supplementary light structure 220 may also be the same as the height of the first protruding portion 211 .
  • the end of the supplementary light structure 220 away from the slit 250 is located on the same plane as the end of the first protrusion 211 away from the lamp panel 210 , and the side of the supplementary light structure 220 away from the slit 250 is in the same plane as the The optical film 300 is in contact with the optical film 300, and the optical film 300 is supported by the supplementary light structure 220.
  • the support from the point of the first raised part 211 is replaced by the use of the first raised part 211 to cooperate with the
  • the surface support of the supplementary light structure 220 shares the contact area between the first raised portion 211 and the optical film 300, avoiding the position of the display device 10 corresponding to the first raised portion 211, because the first The raised portion 211 abuts against the dark spot formed by pressing the optical film 300 .
  • the spliced light panel 200 is often spliced through many light panels 210 , so there will be a position where the gap 250 meets, and the supplementary light structure 220 includes a first supplementary light structure 226 with the same thickness.
  • the first supplementary light structure 226 covers a plurality of sequentially connected slits 250 on the same horizontal line;
  • the second supplementary light structure 227 covers a plurality of sequentially connected slots 250 on the same vertical line
  • the first supplementary light structure 226 and the second supplementary light structure 227 are arranged to overlap each other, and the thickness of the overlap between the first supplementary light structure 226 and the second supplementary light 227 structure is The sum is equal to the thickness of the first supplementary light structure 226 or the second supplementary light structure 227 . That is, the first supplementary light structure 226 and the second supplementary light structure 227 are engaged with each other.
  • this solution uses a whole strip of supplementary light structure 220, so that the said supplementary light structures 220 in the entire lamp panel 210 are not easy to fall off. Moreover, the intersecting position of the supplementary light structure 220 is connected in a snap-in manner, which ensures that the display device 10 corresponds to the position where the first supplementary light structure 226 and the second supplementary light structure 227 overlap each other. Does not darken.
  • the supplementary light structure 220 can be a structure with its own light source, or it can be a reflection sheet 40.
  • the backlight module 20 of the present application also includes a diffusion sheet 230, and one end of the diffusion sheet 230 is fixed to the lamp panel 210. The other end is movable between another lamp board 210 in the adjacent lamp board 210, and the supplementary light structure 220 covers at least one row of light-emitting diodes close to the gap 250 in at least one of the lamp boards 210 , and the number of light emitting diodes covered by the fixed end of the diffusion sheet 230 is smaller than the number of light emitting diodes not covered by the fixed end of the diffusion sheet 230 .
  • the diffusion sheet 230 By using the diffusion sheet 230 to evenly direct the light on the lamp board 210 to the gap 250, no additional light source is required, and compared to the solution of using a reflective sheet to fill the gap 250, the use of The diffusion sheet 230 supplements the light to make the light softer, and the cost of the diffusion sheet 230 is also lower.
  • the end of the diffusion sheet 230 fixed to the lamp panel 210 is fixed by the first protrusion 211, the first protrusion 211 will block some light, so the diffusion sheet 230 is used to be fixed.
  • the number of light emitting diodes covered by the fixed end is less than the number of light emitting diodes covered by the unfixed end of the diffusion sheet 230, so that more light can be transmitted to the diffusion sheet 230, and the gap 250 can be supplemented. Light, improve the fill light effect.
  • the position of the diffusion sheet 230 corresponding to the light-emitting diode is provided with a diffusion cavity 231, and the diameter of the diffusion cavity 231 is larger than the diameter of the light-emitting diode, that is, the cavity wall of the diffusion cavity 231 is in contact with the light-emitting diode.
  • a safety distance is provided between them, and the safety distance is a distance reserved in advance to prevent the diffusion sheet 230 from colliding with the light-emitting diodes when the lamp panel 210 is deformed due to thermal expansion and contraction.
  • a reflective structure 232 is provided on the wall of the diffusion cavity 231 away from the slit 250, and the reflective structure 232 reflects the light emitted by the LED in the diffusion cavity 231 toward the slit 250, further Improve light utilization.
  • the diffusion sheet 230 is also provided with a reflection sheet 240, the reflection sheet 240 covers the slit 250, and the reflective surface of the reflection sheet 240 is attached to a side of the diffusion sheet 230 close to the slit 250.
  • the diffuser 230 reflects the light corresponding to the slit 250 again, which further improves the utilization rate of light.
  • the diffusion sheet 230 covers the lamp board 210 on both sides of the gap 250 at the same time, and only covers a row of light-emitting diodes on the lamp board 210 near the gap 250 , and the first row of LEDs on the lamp board 210 A protruding part 211 is disposed on a side of the LED covered by the diffusion sheet 230 away from the slit 250 to prevent the first protruding part 211 from blocking the light emitted by the LED.
  • Fig. 7 is a cross-sectional view of a backlight module according to the second embodiment of the present application. As shown in Fig. 7, the difference from the first embodiment is that the supplementary light structure 220 Each lamp board 210 is fixedly connected.
  • a backlight module 20 including a spliced lamp panel 200, the spliced lamp panel 200 includes a plurality of lamp panels 210, the multiple lamp panels 210 are spliced to form the spliced lamp panel 200, and the adjacent There is a gap 250 between the lamp panels 210, and the backlight module 20 also includes a supplementary light structure 220, which covers the gap 250; the supplementary light structure 220 is provided with a plurality of through holes, and a plurality of The through hole is divided into a third through hole 223 and a fourth through hole 224, and two adjacent lamp panels 210 are provided with second protrusions 212; the third through hole 223 and the adjacent The second protrusion 212 on one of the two lamp boards 210 is fixedly connected; the fourth through hole 224 is connected to the other lamp board 210 of the two adjacent lamp boards 210
  • the second protruding portion 212 on the top is fixedly connected, and the material of the second protruding portion 212 is
  • the interference fit between the third through hole 223 and the second protrusion 212 on one of the two adjacent lamp boards 210, the fourth through hole 224 and the adjacent is an interference fit between the second protrusion 212 on the other lamp board 210 of the two lamp boards 210 .
  • the supplementary light structure 220 and the two lamp panels 210 adjacent to the gap 250 are fixed to ensure the stability of the supplementary light structure 220 .
  • the second protruding part 212 is made of plastic material. Since the plastic material has elasticity, the second protruding part 212 can convert the stress generated by the deformation of the lamp panel 210 into elasticity, so as to be stored in the second protruding part 212. In the second protruding portion 212 , it will not be transmitted to the supplementary light structure 220 , which avoids damage to the supplementary light structure 220 .
  • the shape of the second protrusion 212 is cylindrical
  • the third through hole 223 and the fourth through hole 224 are circular through holes
  • the outer diameter of the second protrusion 212 is equal to the inner diameters of the third through hole 223 and the fourth through hole 224.
  • the cylindrical through hole cooperates with the cylindrical protrusion, and when receiving the stress of the lamp panel 210, the force is more uniform, and the fracture is not easy to occur.
  • the height of the supplementary light structure 220 is the same as the height of the second protruding portion 212 .
  • the side of the supplementary light structure 220 away from the slit 250 is located on the same plane as the end of the second protrusion 212 away from the lamp panel 210 , that is, the side of the supplementary light structure 220 away from the slit 250 is located on the same plane.
  • the side is in contact with the optical film 300, and the optical film 300 is supported by the supplementary light structure 220.
  • the point support of the second raised part 212 is replaced by the use of the second raised part 212 Cooperating with the surface support of the supplementary light structure 220 , it avoids the dark spot of the display device 10 caused by extrusion at the position corresponding to the second protruding portion 212 .
  • Fig. 8 is a top view of the combination of a supplementary light structure and a spliced light panel according to the third embodiment of the present application.
  • the difference from the first embodiment is that the supplementary light structure 220 and the gap A notch 225 is provided at the position corresponding to the first protruding part 211 of the other adjacent lamp panel 210 at 250, and the notch 225 half surrounds the corresponding first protruding part 211, and the notch 225 facing away from the slit 250 .
  • One end of the supplementary light structure 220 is fixedly connected to the light board, and the other end is matched with the other light board 210 adjacent to the gap 250 through the first protrusion 211 and the notch 225, so that the installation It is more convenient, and the light supplementary structure 220 avoids the first protrusion 211 on the other lamp board adjacent to the gap, so as to prevent the light supplementary structure 220 from being damaged due to collision.

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Abstract

背光模组（20）和显示装置（10），背光模组（20）包括拼接灯板（200），拼接灯板（200）包括多个灯板（210），多个灯板（210）拼接形成拼接灯板（200），相邻两块灯板（210）之间具有缝隙（250），背光模组（20）还包括补光结构（220），补光结构（220）具有固定端和自由端，固定端与相邻两块灯板（210）中的其中一块灯板（210）固定连接，补光结构（220）覆盖缝隙（250），且自由端位于相邻两块灯板（210）中的另一块灯板（210）上。

Description

背光模组和显示装置
本申请要求于2021年12月29日提交中国专利局，申请号为CN202111635002.4，申请名称为“背光模组和显示装置”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和显示装置。
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。一般，大型的拼接屏大多用于户外环境，而为了避免灯板受到环境的影响产生形变，都会在相邻的灯板之间预留安全间隙，而在显示装置进行工作时，对应安全间隙的位置就会出现暗影、暗线等问题。
通常，都会采用在缝隙的两边灯板上设置反射片，用反射片遮挡缝隙，之后再用反射片和灯板进行连接，这样的话虽然可以在一定程度上缓解上述的暗影、暗线等问题，但是灯板因为形变产生的应力就会转移的反射片上，使得反射片发生破损，或者相对于灯板发生松动的情况发生。
发明内容
本申请的目的是提供一种背光模组和显示装置，所述背光模组中的拼接灯板在发生形变产生应力时不会将应力施加在所述缝隙处的补光结构上，避免补光结构发生破损，以及避免所述补光结构相对于拼接灯板发生松动。
本申请公开了一种背光模组，包括拼接灯板，所述拼接灯板包括多个灯板，多个灯板拼接形成所述拼接灯板，相邻两块所述灯板之间具有缝隙，所述背光模组还包括补光结构，所述补光结构具有固定端和自由端，所述固定端与相邻两块所述灯板中的其中一块灯板固定连接，所述补光结构覆盖所述缝隙，且所述自由端位于相邻两块所述灯板中的另一块灯板上。
本申请还公开了一种背光模组，包括拼接灯板，所述拼接灯板包括多个灯板，多个灯板拼接形成所述拼接灯板，相邻的所述灯板之间具有缝隙，所述背光模组还包括补光结构，所述补光结构覆盖所述缝隙；所述补光结构上设置有多个通孔，多个所述通孔分为第三通孔和第四通孔，相邻的两个所述灯板上均设置有第二凸起部；所述第三通孔与相邻的两个所述灯板中的其中一个灯板上的第二凸起部固定连接；所述第四通孔与相邻的两个所述灯板中的另一个灯板上的第二凸起部固定连接，且所述第二凸起部的材质为塑胶材质。
本申请还公开了一种显示装置，所述显示装置包括显示面板和上述所述的背光模组，所述背光模组和显示面板对应设置，所述背光模组为所述显示面板提供背光源；其中，所述背光模组还包括拼接灯板，所述拼接灯板包括多个灯板，多个灯板拼接形成所述拼接灯板，相邻的所述灯板之间具有缝隙，所述背光模组还包括补光结构，所述补光结构覆盖所述缝隙。
相对于采用在缝隙的两边灯板上设置反射片，用反射片遮挡缝隙，之后再用反射片和灯板进行连接的方案来说，本申请通过在所述缝隙处对应的位置设置补光结构对所示拼接灯板的缝隙进行补光，而且所述补光结构只与所述缝隙处两边的一个所述灯板进行固定连接，与另一个灯板之间不连接，当所述灯板发生形变时，所述补光结构与另一个灯板之间可以发生相对移动，避免了灯板形变的应力施加在所述补光结构上，造成所述补光结构的破损。
附图说明
所包括的附图用来提供对本申请实施例的进一步的理解，其构成了说明书的一部分，用于例示本申请的实施方式，并与文字描述一起来阐释本申请的原理。显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动性的前提下，还可以根据这些附图获得其他的附图。在附图中：
图1是本申请的一实施例的一种显示装置的爆炸示意图；
图2是本申请的第一种实施例的一种背光模组的截面图；
图3是本申请的第一种实施例的一种补光结构上的第一通孔和第二通孔与灯板上的第一凸起部配合的示意图；
图4是图3中A区域放大的示意图；
图5是本申请的第一种实施例的一种拼接灯板的示意图；
图6是图5中A区域放大的示意图；
图7是本申请的第二种实施例的一种背光模组的截面图；
图8是本申请的第三种实施例的一种补光结构和拼接灯板配合的俯视图。
具体实施方式
需要理解的是，这里所使用的术语、公开的具体结构和功能细节，仅仅是为了描述具体实施例，是代表性的，但是本申请可以通过许多替换形式来具体实现，不应被解释成仅受限于这里所阐述的实施例。
除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，或是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
下面参考附图和可选的实施例对本申请作详细说明。
图1是本申请的一实施例的一种显示装置的爆炸示意图，如图1所示，公开了一种显示装置10，所述显示装置10包括显示面板600和背光模组20，所述背光模组20和显示面板600对应设置，所述背光模组20为所述显示面板600提供背光源。
具体的，所述背光模组20包括背板100和拼接灯板200，所述背板100和所述拼接灯板200对应设置，所述显示装置10还包括光学膜片300、胶框400和泡棉500，所述背板100、拼接灯板200、光学膜片300、泡棉500和显示面板600依次堆叠设置，所述胶框400环绕所述拼接灯板200、所述光学膜片300、所述泡棉500和所述显示面板600四者的边缘设置。其中，所述背光模组还包括 补光结构，补光结构覆盖相邻灯板之间的缝隙，且与所述灯板固定连接，对所述缝隙进行补光，具体的实施方式，下面以三个实施例进行说明。
实施例一：
如图2所示，图2是本申请的第一种实施例的一种背光模组的截面图，公开了一种背光模组20，所述背光模组20包括拼接灯板200，所述拼接灯板200包括多个灯板210，多个灯板210拼接形成所述拼接灯板200，相邻两块所述灯板210之间具有缝隙250，所述背光模组20还包括补光结构220，所述补光结构220具有固定端和自由端，所述固定端与相邻两块所述灯板210中的其中一块灯板210固定连接，所述补光结构220覆盖所述缝隙250，且所述自由端位于相邻两块所述灯板210中的另一块灯板210上。
通过在所述缝隙250处对应的位置，设置补光结构220对所述拼接灯板200的缝隙250进行补光，而且所述补光结构220只与所述缝隙250处两边的一个所述灯板210进行固定连接，与另一个灯板210之间不连接，即所述补光结构220直接搭设在另一个灯板210的出光面上，当所述灯板210发生形变时，所述补光结构220与另一个灯板210之间可以发生相对移动，避免了所述灯板210形变产生的应力施加在所述补光结构220上，造成所述补光结构220的破损或者松动。所述补光结构220和所述灯板210之间的固定方式，可以采用胶带，也可以采用胶水进行粘贴。
结合图3和图4所示，本申请通过在所述补光结构220上设置有多个通孔，所述通孔分为第一通孔221和第二通孔222，所述灯板210上设置有第一凸起部211，所述第一通孔221和所述第一凸起部211固定连接；所述第二通孔222与相邻的另一个所述灯板210上的第一凸起部211配合连接，第二通孔222与第一凸起部211之间设置有间隙。其中所述第一通孔221与所述补光结构220的固定端对应，所述第二通孔222与所述补光结构220的自由端对应。
在所述补光结构220上开设第一通孔221，所述第一通孔221和一个灯板210上的第一凸起部211固定连接，所述补光结构220上还有第二通孔222，所述第二通孔222套设在相邻的另一个所述灯板210上的第一凸起部211上，而且之间设置有间隙，所述间隙为安全距离，所述安全距离为所述灯板210在热胀冷缩时产生形变时变化的距离，可以理解为即使灯板210发生形变，相邻的另一个所述灯板210上的第一凸起部211也不会与所述第二通孔222的孔壁接触，造成所述补光结构220发生破损，相当于在所述补光结构220和所述灯板210之间提前预留一个安全距离，而且第一凸起部211和第一通孔221固定连接的方式，相比于粘胶的方案，不需要担心溢胶对所述灯板210造成影响，还不需要对所述补光结构220进行定位之后再连接，且更方便后期拆卸，而且对所述灯板还具有辅助固定的作用。
进一步的，所述第一凸起部211穿过所述通孔凸出于所述补光结构220，由于所述灯板210的上方是所述光学膜片300，在对显示装置10进行组装的时候，会在所述灯板210和所述光学膜片300之间设置支撑柱213，当所述补光结构220较小时，通过在所述灯板210上单独设置第一凸起部211配合所述补光结构220进行固定，而当所述补光结构220较大时，直接采用所述灯板210上的支撑柱 213作为第一凸起部211和所述补光结构220进行固定连接。
而且所述支撑柱213与所述灯板210是一体成型的，使得所述补光结构220与所述灯板210之间的连接更加的稳固，而且通过设置多个所述第一凸起部211，直接支撑所述光学膜片300，便可以不在所述灯板210上再设置支撑部213。
即，每个灯板上的所述第一凸起部211均设置有多个，且均匀排列；多个所述第一凸起部211与多个所述通孔一一对应设置。通过多个均匀排列第一凸起部211和多个通孔固定连接，提高连接的稳定性的同时，多个所述第一凸起部211可以取代原来灯板上的所述支撑部213，对所述光学膜片300进行支撑。其中，所述第一凸起部211可以是矩形也可以是圆形，所述通孔配合所述第一凸起部设置。
进一步的，所述补光结构220的高度还可以和第一凸起部211的高度相同。且所述补光结构220远离所述缝隙250的一端与第一凸起部211的远离所述灯板210的一端位于同一平面，所述补光结构220远离所述缝隙250的一侧与所述光学膜片300抵接，采用补光结构220辅助支撑所述光学膜片300，从所述第一凸起部211的点支撑，换成了采用所述第一凸起部211配合所述补光结构220的面支撑，分担了第一凸起部211和光学膜片300的接触面积，避免了所述显示装置10在所述第一凸起部211对应的位置，因为所述第一凸起部211与所述光学膜片300抵接挤压形成的暗点。
结合图5和图6所示，拼接灯板200往往是通过很多个灯板210进行拼接，所以便会出现缝隙250交界的位置，所述补光结构220包括厚度相同的第一补光结构226和第二补光结构227，所述第一补光结构226覆盖同一水平线上、依次连接的多条所述缝隙250；所述第二补光结构227覆盖同一竖直线上依次连接的多条缝隙250；所述第一补光结构226和所述第二补光结构227相互交叠设置，且所述第一补光结构226和所述第二补光227结构的交叠处的厚度之和等于所述第一补光结构226或第二补光结构227的厚度。即所述第一补光结构226和所述第二补光结构227之间卡合配合。
相比于在每个缝隙250内都采用单条的补光结构220，本方案采用的是整条的补光结构220，使得整个灯板210内的所述补光结构220之间不容易脱落，而且在所述补光结构220相交的位置处采用卡合的方式连接，保证了所述显示装置10对应，所述第一补光结构226和所述第二补光结构227相互交叠的位置不会变暗。
所述补光结构220可以是自身具有光源的结构，也可以是反射片40，本申请的所述背光模组20还包括扩散片230，所述扩散片230的一端与所述灯板210固定连接，另一端与相邻所述灯板210中的另一个灯板210之间可移动，所述补光结构220覆盖至少一个所述灯板210中靠近所述缝隙250的至少一排发光二极管，且所述扩散片230被固定的一端覆盖的发光二极管的数量小于所述扩散片230未被固定的一端覆盖的发光二极管的数量。
通过采用扩散片230将所述灯板210上自身的光，匀向所述缝隙250处，不需要外加灯源，而且相对于采用反射片对所述缝隙250进行补光的方案来说，采用扩散片230进行补光使得光更加的柔和，所述扩散片230的成本也更低。
进一步的，由于所述扩散片230与所述灯板210固定的一端是通过第一凸起211进行固定，所述第一凸起部211就会挡住一些光，所以采用所述扩散片230被固定的一端覆盖的发光二极管的数量小于所述扩散片230未被固定的一端覆盖的发光二极管的数量，以将更多的光传到所述扩散片230中，对所述缝隙处250进行补光，提高补光效果。
而且所述扩散片230对应所述发光二极管的位置处设置有扩散腔231，并且所述扩散腔231的直径大于所述发光二极管的直径，即所述扩散腔231的腔壁与所述发光二极管之间设置有安全距离，所述安全距离为提前预留的距离，防止所述灯板210因为热胀冷缩产生形变时，所述扩散片230磕碰所述发光二极管。
所述扩散腔231的腔壁内远离所述缝隙250的一侧设置有反射结构232，所述反射结构232将所述扩散腔231内的发光二极管发出的光朝向所述缝隙250处反射，进一步提高光的利用率。
并且，所述扩散片230上还设置有反射片240，所述反射片240遮挡所述缝隙250，且所述反射片240的反射面贴合在所述扩散片230靠近所述缝隙250的一侧，将所述扩散片230对应所述缝隙250处的光再次反射，进一步的提高了光的利用率。
进一步的，所述扩散片230同时覆盖所述缝隙250两侧的所述灯板210，且只覆盖灯板210上靠近所述缝隙250处的一排发光二极管，所述灯板210上的第一凸起部211设置在被所述扩散片230覆盖的发光二极管远离所述缝隙250的一侧，避免所述第一凸起211部遮挡发光二极管发出的光线。
实施例二：
图7是本申请的第二种实施例的一种背光模组的截面图，如图7所示，和第一实施例不同的是，所述补光结构220同时与相邻的所述两个灯板210固定连接。
具体的，公开了一种背光模组20，包括拼接灯板200，所述拼接灯板200包括多个灯板210，多个灯板210拼接形成所述拼接灯板200，相邻的所述灯板210之间具有缝隙250，所述背光模组20还包括补光结构220，所述补光结构220覆盖所述缝隙250；所述补光结构220上设置有多个通孔，多个所述通孔分为第三通孔223和第四通孔224，相邻的两个所述灯板210上均设置有第二凸起部212；所述第三通孔223与相邻的两个所述灯板210中的其中一个灯板210上的第二凸起部212固定连接；所述第四通孔224与相邻的两个所述灯板210中的另一个灯板210上的第二凸起部212固定连接，且所述第二凸起部212的材质为塑胶材质。
其中，所述第三通孔223与相邻的两个所述灯板210中的其中一个灯板210上的第二凸起212部之间过盈配合，第四通孔224和与相邻的两个所述灯板210中的另一个灯板210上的第二凸起部212之间过盈配合。
相对于第一实施例来说，本方案将所述补光结构220，与缝隙250处相邻的两块灯板210均进行固定，以保证所述补光结构220的稳定性。
其次，通过采用塑胶材质制成所述第二凸起部212，由于塑胶材料具有弹性，所述第二凸起部212可以将所述灯板210形变产生的应力转化为弹性，以储存在所述第二凸起部212中，不会传到所述补光结构220上，避免了所述补光结构220发送破损。
其中，所述第二凸起部212的形状为圆柱形，所述第三通孔223和所述第四通孔224为圆形通孔，所述第二凸起部212的外径等于所述第三通孔223和所述第四通孔224的内径。圆柱形的通孔配合圆柱形的凸起，在接收所述灯板210的应力时受力更加的均匀，不容易发生断裂。
所述补光结构220的高度和所述第二凸起部212的高度相同。且所述补光结构220远离所述缝隙250的一面与所述第二凸起部212的远离所述灯板210的一端位于同一平面，即所述补光结构220远离所述缝隙250的一侧与所述光学膜片300抵接，采用补光结构220辅助支撑所述光学膜片300，从所述第二凸起部212的点支撑换成了，采用所述第二凸起部212配合所述补光结构220的面支撑，避免了所述显示装置10在所述第二凸起部212对应的位置因为挤压形成的暗点。
实施例三：
图8是本申请的第三种实施例的一种补光结构和拼接灯板配合的俯视图，如图8所示，和第一实施例不同的是，所述补光结构220与所述缝隙250处相邻的另一块所述灯板210所述第一凸起部211对应的位置设置有缺口225，所述缺口225半包围对应的所述第一凸起部211，且所述缺口225朝向远离所述缝隙250处。
所述补光结构220一端与所述灯板固定连接，另一端与所述缝隙250处相邻的另一个所述灯板210之间通过第一凸起211和所述缺口225配合，使得安装加方便，且所述补光结构220避开所述缝隙处相邻的另一个所述灯板上的第一凸起部211，防止磕碰导致所述补光结构220发生损坏。
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 (20)

  1. 一种背光模组，包括拼接灯板，所述拼接灯板包括多个灯板，多个所述灯板拼接形成所述拼接灯板，相邻两块所述灯板之间具有缝隙，所述背光模组还包括补光结构，所述补光结构具有固定端和自由端，所述固定端与相邻两块所述灯板中的其中一块灯板固定连接，所述补光结构覆盖所述缝隙，且所述自由端位于相邻两块所述灯板中的另一块灯板上。
  2. 根据权利要求1所述的背光模组，其中，所述固定端与所述缝隙处两边的一个所述灯板固定连接，所述自由端搭设在另一个所述灯板的出光面上。
  3. 根据权利要求1所述的背光模组，其中，所述补光结构上设置有多个通孔，所述通孔分为第一通孔和第二通孔，所述灯板上设置有第一凸起部，所述第一通孔和相邻两个所述灯板中的其中一个灯板上的第一凸起部固定连接；
    所述第二通孔与相邻两个所述灯板中的另一个灯板上的第一凸起部配合连接，第二通孔与第一凸起部之间设有间隙。
  4. 根据权利要求3所述的背光模组，其中，所述第一凸起部穿过所述通孔，且所述第一凸起部凸出于所述补光结构。
  5. 根据权利要求4所述的背光模组，其中，所述背光模组还包括光学膜片，所述光学膜片设置在所述拼接灯板出光面的一侧，多个所述第一凸起部支撑所述光学膜片。
  6. 根据权利要求3所述的背光模组，其中，每个所述灯板上的第一凸起部均设置有多个，且均匀排列；多个所述第一凸起部与多个所述通孔一一对应设置。
  7. 根据权利要求3所述的背光模组，其中，所述补光结构的高度和所述第一凸起部的高度相同。
  8. 根据权利要求1所述的背光模组，其中，所述补光结构包括厚度相同的第一补光结构和第二补光结构，所述第一补光结构覆盖同一水平线上、依次连接的多条所述缝隙；
    所述第二补光结构覆盖同一竖直线上依次连接的多条所述缝隙；
    所述第一补光结构和所述第二补光结构相互交叠设置，且所述第一补光结构和所述第二补光结构的交叠处的厚度之和等于所述第一补光结构或第二补光结构的厚度。
  9. 根据权利要求8所述的背光模组，其中，所述第一补光结构和所述第二补光结构之间卡扣配合。
  10. 根据权利要求1所述的背光模组，其中，所述背光模组还包括扩散片，所述扩散片覆盖至少一个所述灯板，且所述扩散片仅覆盖靠近所述缝隙的至少一排发光二极管，所述扩散片的固定端覆盖的发光二极管的数量小于所述扩散片的自由端覆盖的发光二极管的数量。
  11. 根据权利要求10所述的背光模组，其中，所述扩散片对应所述发光二极管的位置处设置有扩散腔，所述扩散腔的直径大于所述发光二极管的直径。
  12. 根据权利要求11所述的背光模组，其中，所述扩散腔的腔壁远离所述缝隙的一侧设置有反射结构。
  13. 根据权利要求10所述的背光模组，其中，所述背光模组还包括反射片，所述反射片的反射面贴合在所述扩散片靠近所述缝隙的一侧，且所述反射片覆盖所述缝隙。
  14. 根据权利要求10所述的背光模组，其中，所述扩散片同时覆盖所述缝隙两侧的所述灯板，且只覆盖灯板上靠近所述缝隙的一排发光二极管。
  15. 根据权利要求1所述的背光模组，其中，所述补光结构为反射片。
  16. 一种背光模组，包括拼接灯板，所述拼接灯板由多个灯板拼接组成，相邻的所述灯板之间具有缝隙，所述背光模组还包括补光结构，所述补光结构覆盖所述缝隙；
    所述补光结构上设置有多个通孔，多个所述通孔分为第三通孔和第四通孔，相邻的两个所述灯板上均设置有第二凸起部；
    所述第三通孔与相邻的两个所述灯板中的其中一个灯板上的第二凸起部固定连接；
    所述第四通孔与相邻的两个所述灯板中的另一个灯板上的第二凸起部固定连接，且所述第二凸起部的材质为塑胶材质。
  17. 根据权利要求16所述的背光模组，其中，所述第二凸起部的形状为圆柱形，所述第三通孔和所述第四通孔为圆形通孔，所述第二凸起部的外径等于所述第三通孔和所述第四通孔的内径。
  18. 一种显示装置，所述显示装置包括显示面板和背光模组，所述背光模组和显示面板对应设置，所述背光模组为所述显示面板提供背光源；
    其中，所述背光模组还包括拼接灯板，所述拼接灯板包括多个灯板，多个所述灯板拼接形成所述拼接灯板，相邻的所述灯板之间具有缝隙，所述背光模组还包括补光结构，所述补光结构覆盖所述缝隙。
  19. 根据权利要求18所述的显示装置，其中，所述补光结构具有固定端和自由端，所述固定端与相邻两块所述灯板中的其中一块灯板固定连接，且所述自由端位于相邻两块所述灯板中的另一块灯板上。
  20. 根据权利要求18所述的显示装置，其中，所述补光结构上设置有多个通孔，多个所述通孔分为第三通孔和第四通孔，相邻的两个所述灯板上均设置有第二凸起部；
    所述第三通孔与相邻的两个所述灯板中的其中一个灯板上的第二凸起部固定连接；
    所述第四通孔与相邻的两个所述灯板中的另一个灯板上的第二凸起部固定连接，且所述第二凸起部的材质为塑胶材质；
    其中，所述第二凸起部将所述灯板形变产生的应力转化为弹性，以存储在所述第二凸起部中，不会传到所述补光结构上。
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