WO2017117921A1 - 胶带、背光模组及显示装置 - Google Patents

胶带、背光模组及显示装置 Download PDF

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Publication number
WO2017117921A1
WO2017117921A1 PCT/CN2016/087277 CN2016087277W WO2017117921A1 WO 2017117921 A1 WO2017117921 A1 WO 2017117921A1 CN 2016087277 W CN2016087277 W CN 2016087277W WO 2017117921 A1 WO2017117921 A1 WO 2017117921A1
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WO
WIPO (PCT)
Prior art keywords
tape
plane
linear
fracture
light
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PCT/CN2016/087277
Other languages
English (en)
French (fr)
Inventor
沈克军
Original Assignee
京东方科技集团股份有限公司
京东方光科技有限公司
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Application filed by 京东方科技集团股份有限公司, 京东方光科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/325,880 priority Critical patent/US10473975B2/en
Publication of WO2017117921A1 publication Critical patent/WO2017117921A1/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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133604—Direct backlight with lamps
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • Embodiments of the present disclosure relate to an adhesive tape, a backlight module, and a display device.
  • the liquid crystal display device is a display device in which a backlight module is used as a light source and a liquid crystal display panel is a display device.
  • the illumination effect of the backlight module can directly affect the visual effect of the liquid crystal display panel. Therefore, in order to improve the light-emitting effect of the backlight module, a tape is disposed on the edge of the surface of the backlight module and the liquid crystal display panel to avoid light leakage due to a gap between the backlight module and the liquid crystal display panel, thereby causing light emission of the liquid crystal display device. Poor effect.
  • the tape is generally a frame-type continuous closed structure.
  • the entire block of the light-shielding material needs to be hollowed out to form a tape having a frame-type continuous closed structure in the whole light-shielding material, and the light-shielding material is dug.
  • the part is not suitable because the size is unusable, which causes waste of materials, which leads to an increase in the cost of tape production.
  • the tape is a frame-type continuous closed structure, when the backlight module is tested for high temperature and high humidity reliability, When the backlight module is extended or contracted due to temperature changes, the entire tape is deformed, which reduces the shading effect of the tape and greatly affects the illumination effect of the backlight module.
  • Embodiments of the present disclosure provide an adhesive tape, a backlight module, and a display device.
  • an adhesive tape that includes a plurality of non-linear fractures that divide the tape into corresponding plurality of tape units.
  • the shape of the non-linear fracture includes an L-shape, a Z-shape, or an S-shape.
  • the non-linear fracture is provided on a corner of the tape or on a side of the tape; the non-linear fracture comprises a cross section of the first tape unit and a cross section of the second tape unit.
  • the cross section of the first tape unit is a zigzag structure including a first plane, a second plane, and a third plane which are sequentially connected
  • the cross section of the unit is a zigzag structure including a fourth plane, a fifth plane, and a sixth plane which are sequentially connected
  • the width of the second tape unit is greater than the width of the first tape unit, and the sixth plane is connected to be perpendicular to the sixth plane a seventh plane disposed;
  • the first plane and the fourth plane form a first vertical interval as a light exit, the second plane forming a first horizontal interval with the fifth plane, the third plane Forming a second vertical interval with the sixth plane, the first vertical interval, the first horizontal interval, and the second vertical interval sequentially connecting into a Z-shaped nonlinear fracture, the seventh plane Forming a second horizontal interval as a light entrance with a side of the long side of the first tape unit; or
  • the first plane and the fourth plane form a first horizontal interval as a light exit
  • the second plane forms a vertical with the fifth plane a straight interval
  • the third plane and the sixth plane form a second horizontal interval as a light entrance
  • the first horizontal interval, the vertical interval, and the second horizontal interval sequentially connected to form a Z-type non- Linear fracture.
  • the non-linear fracture is provided on a corner of the tape or on a side of the tape.
  • the contour of the tape is a frame-like profile formed by a plurality of tape elements.
  • the tape unit is a linear tape unit or a non-linear tape unit; and when the shape of the tape unit is non-linear, the tape unit includes a wide side portion and the wide side The narrow side portions that are connected, or the tape unit includes two connected narrow sides.
  • each of the tape units includes a plurality of strips that are capable of blocking light, with spaces between adjacent strips.
  • the tape can be applied to a display device and matched to the edge contour of the backlight module in the display device.
  • the cross-section of the first tape unit is a first plane
  • the cross-section of the second tape unit includes a second plane that is sequentially connected, And an L-shaped structure of the third plane
  • the first plane and the second plane form a vertical interval as a light exit
  • the third plane and the long side of the second tape unit Forming a horizontal interval as a light entrance on the side, the vertical spacing and the horizontal spacing forming an L-shaped nonlinear fracture
  • the second plane and the first glue when the nonlinear fracture is opened on the side of the tape is formed with a vertical spacing as a light exit, the third plane forming a horizontal spacing with the first plane as a light entrance, the horizontal spacing and the vertical spacing forming an L-shaped Nonlinear fracture.
  • the cross section of the first tape unit is a first S curved surface
  • the cross section of the second adhesive tape unit is a second S curved surface
  • the first S curved surface and the second S curved surface are opposite and spaced to form a non-linear fracture having an S-shape.
  • Embodiments of the present disclosure also provide a backlight module including the tape.
  • An embodiment of the present disclosure further provides a display device including the backlight module.
  • FIG. 1 is a schematic structural view of a non-linear notch in the shape of an L-shaped portion disposed at a corner of an adhesive tape according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural view of a side of a tape when the shape of the nonlinear notch is L-shaped according to an embodiment of the present disclosure
  • FIG. 3 is a schematic structural view of a non-linear notch in the shape of a Z-shaped portion disposed at a corner of the tape in an embodiment of the present disclosure
  • FIG. 4 is a schematic structural view of a side of a tape when the shape of the non-linear notch is Z-shaped according to an embodiment of the present disclosure
  • FIG. 5 is a schematic structural view of a non-linear notch in the shape of an S-shaped portion disposed at a corner of an adhesive tape according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural view of a side of a tape when the shape of the non-linear notch is S-shaped according to an embodiment of the present disclosure
  • Figure 7 is a schematic view showing the position of four non-linear notches provided on the side of the tape in an embodiment of the present disclosure
  • Figure 8 is a schematic view showing the position of four non-linear notches provided at the corners of the tape in an embodiment of the present disclosure
  • Figure 9 is a schematic view showing the position of two non-linear notches provided at the corners of the tape in an embodiment of the present disclosure
  • Figure 10 is a schematic view showing the structure of a tape unit in an embodiment of the present disclosure.
  • the tape 1 is provided with a plurality of nonlinear fractures 100, and the plurality of nonlinear fractures 100 divide the tape 1 into a corresponding plurality of tape units.
  • the tape of the embodiment of the present disclosure can be used for a display device, which can reduce light emitted from the edge of the backlight module of the display device and prevent light from leaking.
  • the light emitted by the backlight module cannot pass straight through the nonlinear fracture 100, and at each of the individual tapes, the tape unit blocks the light emitted by the backlight module, thereby preventing the light emitted by the backlight module from being in the backlight mode.
  • the gap between the group and the liquid crystal display panel leaks outward.
  • the above-mentioned example shows that the tape 1 provided in the embodiment of the present disclosure is provided with a plurality of nonlinear fractures 100.
  • the 100 uses its own ability to prevent the linear propagation of light, so that the light emitted by the backlight module cannot leak from the nonlinear fracture.
  • the optical tape provided in the embodiment of the present disclosure has a plurality of non-linear fractures 100. However, since the light emitted by the backlight module cannot leak from the nonlinear fracture 100, the adhesive tape provided by the embodiment of the present disclosure still has good shading.
  • the performance can prevent the light emitted by the backlight module from leaking out from the gap between the backlight module and the liquid crystal display panel. . Since the plurality of non-linear fractures 100 separate the tape 1 into a corresponding plurality of light-shielding tape units, Therefore, the tape of the embodiment of the present disclosure can be fabricated in a patchwork manner, which avoids the problem of material waste caused by the inability to use the portion that is excavated after the entire portion of the light-shielding material is hollowed out.
  • the tape provided by the embodiment of the present disclosure is provided with a plurality of nonlinear fractures 100, and the nonlinearity on the tape 1 when the film in the backlight module having such a structure is tested for reliability such as high temperature and high humidity.
  • the fracture 100 provides a passage for the membrane exhaust in the backlight module, so that the membrane in the backlight module is effectively exhausted; moreover, the plurality of nonlinear fractures 100 separate the adhesive tape 1 into a corresponding plurality of light shielding tape monomers.
  • Each of the shading tape monomers can be extended or contracted according to the temperature change of the backlight module, and the other tapes are not affected, thereby ensuring the shading effect of the tape 1 and improving The illumination effect of the backlight module.
  • the tape 1 is matched with the edge contour of the backlight module in the display device to further block the light leakage between the backlight module and the display panel.
  • non-linear fracture 100 can be opened at the side of the tape 1 or the corner of the tape 1, and each of the non-linear fractures 100 is formed by the cross section of two tapes; FIG. 1 to FIG.
  • the three types of linear fractures 100 can be selected as L-shaped, Z-shaped or S-shaped, but the embodiment of the present disclosure is not limited thereto.
  • it can also be a nonlinear fracture that can block light leakage from the backlight module. Any other shape of 100.
  • the shape of the nonlinear fracture 100 shown in Figures 1 and 2 is L-shaped. It should be noted that the tape usually has a certain thickness, and the corresponding fracture includes a cross section (perpendicular to the adhesive face of the tape), for example, reference can be understood as being perpendicular to the paper surface.
  • the non-linear fracture 100 includes a cross section of the first tape unit 11 and a cross section of the second tape unit 12, the cross section of the first tape unit 11 is defined as a first plane, and the second tape unit 12 is The section is defined as an L-shaped structure including a second plane and a third plane, the first plane being located in a region formed by the second plane and the third plane.
  • the first plane and the second plane form a vertical interval as a light exit, and the third plane and the third
  • the side of the long side of the two tape unit 12 is formed as a horizontal interval as a light entrance, and the vertical interval and the horizontal interval form an L-shaped nonlinear fracture 100.
  • the first plane is opposite to the second plane, the first plane is formed along the width direction of the first tape unit 11, and the second plane is opened along the length direction of the second tape unit 12, and therefore, the first tape unit 11 Width is affected by the second tape
  • the length of the monomer 12 is restricted, and cannot be restricted by the width of the second tape unit.
  • a tape of the same width can be used to cut the first tape unit 11 and the second tape unit. 12, this facilitates the production of the first tape unit 11 and the second tape unit 12.
  • the light (the direction of the arrow shown in FIG. 1) leaks outward along the horizontal interval in the L-shaped non-linear fracture 100, which is caused by the second tape unit 12
  • the second plane in the block is blocked and cannot propagate in a straight line, thereby reducing or even avoiding the occurrence of light leakage problems.
  • Reducing light leakage or avoiding light leakage is related to the angle of incidence of the light hitting the second plane.
  • the incident angle of the light hitting the second plane is 0°, it can be completely returned, and light leakage can be completely avoided.
  • the distance between the side of the first tape unit 11 and the third plane can be minimized to adjust the angle of incidence of the light incident on the second plane to be as close as possible to 0°.
  • the shape of the nonlinear fracture is L-shaped, it is opened on the side of the tape 1.
  • the second plane forms a vertical interval with the long side of the first tape unit 11 as a light exit
  • the third plane forms a horizontal interval with the first plane as a light entrance
  • the horizontal interval and the vertical interval form an L-shape.
  • the first plane is opposite to the third plane, the first plane is formed along the width direction of the first tape unit 11, and the third plane is formed along the width direction of the second tape unit 12, and therefore, the first tape unit 11
  • the width is restricted by the width of the second tape unit 12; in other words, the width of the first tape unit 11 is different from the width of the second tape unit 12, and when the light-shielding tape 1 is made, the first tape unit 11 is cut and When the second tape unit 12 is used, it is necessary to cut on the tape of different widths, which increases the complexity of making the tape 1.
  • the first tape unit 11 and the second tape unit 12 can be cut using a tape of the same width, which facilitates the production of the first tape unit 11 and the second tape unit 12.
  • the light (the direction of the arrow shown in FIG. 2) leaks outward along the nonlinear fracture 100, and is carried by the second plane of the second tape unit 12.
  • Blocking, but unable to travel in a straight line, thereby reducing or even avoiding the occurrence of light leakage problems, and reducing light leakage or avoiding light leakage is related to the angle of incidence of light hitting the second plane.
  • the incident angle of the light hitting the second plane is 0°, it can be completely returned, and light leakage can be completely avoided.
  • the distance between the third plane and the first plane can be minimized to adjust the incident angle of the light to the L-shaped plane so as to be as close as possible to 0°.
  • the shape of the nonlinear fracture 100 shown in FIG. 3 and FIG. 4 is Z-shaped and can be opened in
  • the corner or side of the light-shielding tape 1 includes a cross section of the first tape unit 11 and a cross section of the second tape unit 12.
  • the cross section of the first tape unit 11 is defined as a zigzag structure including a first plane, a second plane, and a third plane which are sequentially connected;
  • a section of the second tape unit 12 is defined to include a fourth plane which is sequentially connected, The zigzag structure of the five planes and the sixth plane.
  • the first plane and the fourth plane form a first vertical interval as a light exit
  • the second The plane forms a first horizontal interval with the fifth plane
  • the third plane and the sixth plane form a second vertical interval
  • the first vertical interval, the first horizontal interval and the second vertical interval are sequentially connected to form a Z-shaped nonlinear fracture .
  • the light (the direction of the arrow shown in FIG. 3) leaks outward along the nonlinear fracture 100, and is blocked by the sixth plane in the second tape unit 12. It cannot be transmitted in a straight line, thereby reducing or even avoiding the occurrence of light leakage problems. Reducing light leakage or avoiding light leakage is related to the angle of incidence of the light hitting the sixth plane. Ideally, when the incident angle of the light hitting the sixth plane is 0° (degrees), it can be completely returned, and light leakage can be completely avoided.
  • the seventh plane may be connected to the sixth plane, and the seventh plane and the side of the long side of the first tape unit 11 form a second light inlet.
  • Horizontal spacing then adjusting the distance between the seventh plane and the long side of the first tape unit to adjust the width of the horizontal interval, thereby adjusting the angle of incidence of the light to the sixth plane, causing the light to hit the sixth
  • the incident angle of the plane is as close as possible to 0° to reduce light leakage.
  • the first plane and the fourth plane form a first horizontal interval as a light exit
  • the second plane is
  • the fifth plane forms a vertical interval
  • the third plane and the sixth plane form a second horizontal interval as a light entrance, the first horizontal interval, the vertical interval, and the second horizontal interval sequentially communicating to form a Z-shaped nonlinear fracture.
  • the light (the direction of the arrow shown in FIG. 4) leaks outward along the nonlinear fracture 100 and is blocked by the sixth plane of the second tape unit 12, and It is impossible to propagate along a straight line, thereby reducing or even avoiding the occurrence of light leakage problems, and reducing light leakage or avoiding light leakage is related to the incident angle at which the light hits the fifth plane.
  • the incident angle of the light hitting the fifth plane is 0°, it can be completely returned, and the light leakage can be completely avoided at this time.
  • the distance between the sixth plane and the third plane can be minimized to reduce the width of the second horizontal interval, thereby adjusting the incident angle of the light to the sixth plane to be as close as possible to 0°.
  • the width of the second tape unit 12 can be set larger than that of the first tape unit. width.
  • the non-linear fracture 100 shown in FIGS. 5 and 6 has an S-shape and can be formed on the corner or side of the tape 1; and the non-linear fracture 100 includes a section and a section of the first tape unit 11 A section of the second tape unit 12, a section of the first tape unit 11 is defined as a first S curved surface, and a section of the second tape unit 12 is defined as a second S curved surface, and the first S curved surface and the second S curved surface are opposite and have Interval to form an S-shaped nonlinear fracture.
  • the light (the direction of the arrow shown in FIG. 5 and the direction of the arrow shown in FIG. 6) leaks outward along the nonlinear fracture 100, and is etched by the second tape.
  • the first S curved surface on the cell 12 or the second S curved surface on the second tape unit is blocked from being able to propagate in a straight line, thereby reducing or even avoiding the occurrence of light leakage problems. Reducing light leakage or avoiding light leakage is related to the angle of incidence of light incident on the first S surface or the second S surface.
  • the first S surface or the second S surface may be adjusted by changing the curvature of the first S surface or the second S surface.
  • the incident angle of the light incident on the first S surface or the second S surface is as close as possible to 0° to reduce light leakage.
  • the tape 1 can prevent the light emitted by the backlight module from leaking out of various structures from the gap between the backlight module and the liquid crystal display panel. If the portion to be shaded is profiled, the corresponding tape element can be formed with a fracture between the tape unit to accommodate a corresponding shape of various shapes requiring a light-shielding portion, such as a circular, trapezoidal or other profiled configuration. Further, the cross section of the first tape unit 11 and the cross section of the second tape unit 12 shown in the above Figs. 1-6 are perpendicular to the paper surface.
  • the type of the tape unit constituting the tape 1 can also be various, which is generally determined by the overall structure of the tape, for example, can be classified into a linear tape unit or a non-linear tape unit; and the non-linear tape unit can include two
  • the connected narrow side portions may also include a wide side portion and a narrow side portion connected to the wide side portion.
  • the tape 1 is composed of The four tape monomers are enclosed in a frame structure, which are a first linear tape unit 31, a first U-shaped tape unit 32, a second linear tape unit 33, and a second U-shaped tape unit 2, respectively.
  • the first U-shaped tape unit 32 and the second U-shaped tape unit 2 are each one of a non-linear tape unit).
  • the first linear tape unit 31 is in contact with the first U-shaped tape unit 32 to form a first non-linear fracture 101, and the first U-shaped tape unit 32 and the second linear tape unit 33 are opposite to each other to form a second non-
  • the linear fracture 102, the second linear tape unit 33 and the second U-shaped tape unit 2 are opposite to form a third non-linear fracture 103, and the second U-shaped tape unit 2 and the first linear tape unit 31 are opposite to each other.
  • a fourth non-linear fracture 104 is formed.
  • the line connecting the first nonlinear fracture 101 and the third nonlinear fracture 103, the connection of the second nonlinear fracture 102 and the fourth nonlinear fracture 104 intersect at the center O point, and the first nonlinear fracture 101 and the first
  • the three non-linear fractures 103 are symmetric about the O-point center, and the second non-linear fractures 102 are symmetric with respect to the fourth non-linear fracture 104 about the O-point center.
  • the embodiments of the present disclosure are not limited thereto. For example, those skilled in the relevant art can make the light-shielding tape according to the area of the light-shielding tape. Determine the position and number of nonlinear fractures.
  • the tape 1 is frame-shaped by four tapes, which are respectively a first linear tape unit 31 and a third linear tape unit. 32', a second linear tape unit 33 and a fourth linear tape unit 2'.
  • the first linear tape unit 31 is in contact with the third linear tape unit 32' to form a first non-linear fracture 101, and the third linear tape unit 32' and the second linear tape unit 33 are opposite to form a second non-
  • the linear fracture 102, the second linear tape unit 33 and the fourth linear tape unit 2' are contiguous to form a third non-linear fracture 103, and the fourth linear tape unit 2' is opposite to the first linear tape unit 31
  • a fourth non-linear fracture 104 is formed.
  • FIG. 8 shows the number and position requirements of the nonlinear fracture in the light-shielding tape 1
  • the embodiment of the present disclosure is not limited thereto. For example, those skilled in the art can determine the area of the light-shielding tape according to the area of the light-shielding tape. The location and number of nonlinear fractures.
  • the tape 1 is framed by two non-linear tapes, and the two non-linear tapes are respectively the first L-shaped tape.
  • Monomer 31' and second L-type tape unit 33'; and first L-type tape unit 31' and The two L-shaped tape units 33' form a first non-linear fracture 101 and a second non-linear fracture 102, and are disposed diagonally on the frame structure of the tape 1.
  • the plurality of non-linear fractures 100 on the tape 1 can be opened not only on the side of the tape 1 or on the corner of the tape 1, but also on some sides of the tape 1 and others on the tape.
  • the corner of 1 is.
  • the tape unit When the tape unit is a non-linear structure, the tape unit may be the same as the first U-shaped tape unit 32 in FIG. 7 and the second L-shaped tape unit 33' in FIG. 9, including two connected narrow sides.
  • the second U-shaped tape unit 2 as in FIG. 7 and the first L-shaped tape unit 31' in FIG. 9 may include a wide side portion and a narrow side portion connected to the wide side portion.
  • the tape unit may further include a plurality of strips capable of shielding light, and the adjacent strips have a space therebetween.
  • a plurality of strips can be formed into a tape unit in a patchwork manner, which can further utilize the waste having a relatively small width in the tape without particularly finding a tape having the same width as the single piece of the tape. Reduced the generation of tape waste.
  • the gap 100 is similar).
  • the first L-shaped tape unit 31' is taken as an example to explain how the gel forms a tape unit.
  • the first L-shaped tape unit 31' includes a plurality of L-shaped strips 310', each of the L-shaped strips 310' includes a wide strip portion and a narrow strip portion; and a plurality of L-shaped strips The strips are arranged in parallel.
  • embodiments of the present disclosure are not limited to the manner shown in FIG.
  • the tape provided in the embodiment of the present disclosure is provided with a plurality of non-linear fractures.
  • the nonlinear fracture uses a line capable of blocking light. The characteristics of the propagation are such that the light emitted by the backlight module cannot be leaked from the nonlinear fracture. It can be seen that, in the tape provided by the embodiment of the present disclosure, although a plurality of nonlinear fractures are formed on the adhesive tape, the light emitted by the backlight module is The tape cannot be leaked from the non-linear fracture.
  • the tape provided by the present disclosure still has good light-shielding performance, and can prevent the light emitted by the backlight module from leaking out from the gap between the backlight module and the liquid crystal display panel.
  • the plurality of non-linear fractures separate the tape into a corresponding plurality of light-shielding tape monomers, and the tape of the embodiment of the present disclosure can be fabricated in a patchwork manner, thereby avoiding being dug after the hollowing out of the entire block of the light-shielding material. Part cannot The problem of material waste caused by the use.
  • the tape provided in the embodiment of the present disclosure is provided with a plurality of non-linear fractures.
  • the nonlinear fracture opening on the tape is The membrane exhaust in the backlight module provides a passage for the membrane in the backlight module to be effectively vented; and, the plurality of non-linear fractures separate the tape into a corresponding plurality of light-shielding tape units, and therefore, each The single light-shielding tape can be extended or contracted according to the temperature change of the backlight module, and does not affect other tape monomers, thereby ensuring the shading effect of the tape.
  • the embodiment of the present disclosure further provides a backlight module, including the tape mentioned in the above technical solution.
  • An embodiment of the present disclosure further provides a display device, including the backlight module mentioned in the above technical solution.
  • the display device provided in the above embodiments may be any product or component having a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, or a navigator.
  • a display function such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, or a navigator.

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Abstract

一种胶带、背光模组及显示装置。所述胶带(1)包括多个非线性断口(100)，多个所述非线性断口(100)将所述胶带(1)分隔成对应的多个胶带单体(11、12、2、3、2'、3'、31'、33')。该背光模组包括上述遮光用的胶带。

Description

胶带、背光模组及显示装置 技术领域
本公开的实施例涉及一种胶带、背光模组及显示装置。
背景技术
液晶显示装置是一种以背光模组为光源，液晶显示面板为显示器件的显示装置。背光模组的发光效果可以直接影响液晶显示面板的视觉效果。因此，人们为了提高背光模组的发光效果，在背光模组与液晶显示面板接触的面的边缘设置胶带，以避免因背光模组与液晶显示面板之间的缝隙漏光，导致液晶显示装置的发光效果较差的问题。
目前，胶带一般为框型连续封闭结构，在制作时，需要将整块的遮光材料中部挖空，以使整块遮光材料中形成具有框型连续封闭结构的胶带，而遮光材料中被挖去的部分则由于尺寸不合适成为废料不能使用，从而造成材料浪费的问题，导致胶带制作成本增加；另外，由于胶带为框型连续封闭结构，当背光模组在进行高温高湿可靠性测试时，背光模组因温度变化所导致的延展或收缩时，会带动胶带整体发生变形，降低了胶带的遮光效果，极大的影响了背光模组的发光效果。
发明内容
本公开的实施例提供一种胶带、背光模组及显示装置。
根据本公开的至少一个实施例，提供一种胶带，所述胶带包括多个非线性断口，多个所述非线性断口将所述胶带分隔成对应的多个胶带单体。
在一示例中，所述非线性断口的形状包括L型、Z型或S型。
在一示例中，所述非线性断口设在所述胶带的拐角或所述胶带的侧边上；所述非线性断口包括第一胶带单体的断面和第二胶带单体的断面。
在一示例中，当所述非线性断口的形状为Z型时，第一胶带单体的断面为包括依次相连的第一平面、第二平面、第三平面的Z字型结构，第二胶带单体的断面为包括依次相连的第四平面、第五平面、第六平面的Z字型结构；
且在所述非线性断口设在所述胶带的拐角时，所述第二胶带单体的宽度大于所述第一胶带单体的宽度，所述第六平面连接有与所述第六平面垂直设置的第七平面；所述第一平面和所述第四平面形成作为光线出口的第一竖直间隔，所述第二平面与所述第五平面形成第一水平间隔，所述第三平面和所述第六平面形成第二竖直间隔，所述第一竖直间隔、所述第一水平间隔和所述第二竖直间隔依次连通成Z型的非线性断口，所述第七平面与所述第一胶带单体的长边所在侧面形成作为光线入口的第二水平间隔；或
在所述非线性断口设在所述胶带的侧边时，所述第一平面和所述第四平面形成作为光线出口的第一水平间隔，所述第二平面与所述第五平面形成竖直间隔，所述第三平面和所述第六平面形成作为光线入口的第二水平间隔，所述第一水平间隔、所述竖直间隔、所述第二水平间隔依次连通形成Z型的非线性断口。
在一示例中，所述非线性断口设在所述胶带的拐角或所述胶带的侧边上。
在一示例中，所述胶带的轮廓为多个胶带单体形成的框型轮廓。
在一示例中，所述胶带单体为线性胶带单体或非线性胶带单体；且所述胶带单体的形状为非线性时，所述胶带单体包括宽边部以及与所述宽边部相连的窄边部，或所述胶带单体包括两个相连的窄边部。
在一示例中，每个所述胶带单体包括若干能够遮光的胶条，相邻胶条之间具有间隔。
在一示例中，所述胶带可应用于显示装置，并与所述显示装置中的背光模组的边缘轮廓相匹配。
在一示例中，当所述非线性断口的形状为L型时，所述第一胶带单体的断面为第一平面，所述第二胶带单体的断面为包括依次相连的第二平面、和第三平面的L字型结构；
且当所述非线性断口开设在胶带的拐角时，所述第一平面与所述第二平面形成作为光线出口的竖直间隔，所述第三平面与所述第二胶带单体的长边所在侧面形成作为光线入口的水平间隔，所述竖直间隔和所述水平间隔形成L型的非线性断口；或
当所述非线性断口开设在胶带的侧边时，所述第二平面与所述第一胶 带单体的长边所在侧面形成作为光线出口的竖直间隔，所述第三平面与所述第一平面形成作为光线入口的水平间隔，所述水平间隔和所述竖直间隔形成L型的非线性断口。
在一示例中，当所述非线性断口的形状为S型时，所述第一胶带单体的断面为第一S曲面，所述第二胶带单体的断面为第二S曲面，所述第一S曲面和所述第二S曲面相对接且具有间隔，以形成具有S型的非线性断口。
本公开的实施例还提供了一种背光模组，包括所述胶带。
本公开实施例还提供了一种显示装置，包括所述背光模组。
附图说明
以下将结合附图对本公开的实施例进行更详细的说明，以使本领域普通技术人员更加清楚地理解本公开的实施例，其中：
图1为本公开的一实施例中非线性缺口的形状为L型时设在胶带的拐角处的结构示意图；
图2为本公开的一实施例中非线性缺口的形状为L型时设在胶带的侧边的结构示意图；
图3为本公开的一实施例中非线性缺口的形状为Z型时设在胶带的拐角处的结构示意图；
图4为本公开的一实施例中非线性缺口的形状为Z型时设在胶带的侧边的结构示意图；
图5为本公开的一实施例中非线性缺口的形状为S型时设在胶带的拐角处的结构示意图；
图6为本公开的一实施例中非线性缺口的形状为S型时设在胶带的侧边的结构示意图；
图7为本公开的一实施例中四个非线性缺口设在胶带的侧边的位置示意图；
图8为本公开的一实施例中四个非线性缺口设在胶带的拐角处的位置示意图；
图9为本公开的一实施例中两个非线性缺口设在胶带的拐角处的位置示意图；
图10为本公开的一实施例中胶带单体的结构示意图。
具体实施方式
下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也可能相应地改变。
为了进一步说明本公开实施例提供的胶带、背光模组及显示装置，下面结合说明书附图进行详细描述。
请参阅图1-9，本公开实施例提供的胶带，胶带1上设有多个非线性断口100，多个非线性断口100将胶带1分隔成对应的多个胶带单体。
本公开实施例的胶带可以用于显示装置，能够减少从显示装置的背光模组的边缘射出的光线，防止光线泄漏。
例如，背光模组发出的光在非线性断口100处无法直线穿过，而在各个胶带单体处，胶带单体将背光模组发出的光阻挡，从而避免背光模组发出的光在背光模组和液晶显示面板之间的缝隙向外漏出。
通过上述示例可知，本公开实施例提供的胶带1上开设有多个非线性断口100，当背光模组发出的光从背光模组和液晶显示面板之间的缝隙向外漏出时，非线性断口100利用自身能够阻止光的直线传播的特性，使背光模组发出的光无法从非线性断口处漏出。本公开实施例提供的胶带1上虽然开设了多个非线性断口100，但是由于背光模组发出的光无法从非线性断口100处漏出，因此，本公开实施例提供的胶带仍然具有良好的遮光性能，能够防止背光模组发出的光从背光模组和液晶显示面板之间的缝隙向外漏出。。由于多个非线性断口100将胶带1分隔成对应的多个遮光胶带单体， 因此，本公开实施例的胶带可以采用拼凑的方式制作，避免了将整块的遮光材料中部挖空后，被挖去的部分不能使用所造成的材料浪费问题。
另外，本公开的实施例提供的胶带上设有多个非线性断口100，在对具有这种结构的背光模组中的膜材进行高温高湿等可靠性测试时，胶带1上的非线性断口100为背光模组中的膜材排气提供了通道，使背光模组中的膜材实现有效排气；而且，多个非线性断口100将胶带1分隔成对应的多个遮光胶带单体，每个遮光胶带单体能够随着背光模组因温度变化所带来的延展或收缩，对应发生延展或收缩，而不会影响到其他胶带单体，从而保证了胶带1的遮光效果，提高了背光模组的发光效果。
需要说明的是，上述胶带1与显示装置中背光模组的边缘轮廓相匹配，以进一步对背光模组和显示面板之间的漏光进行遮挡。
值得注意的是，非线性断口100可开设在胶带1的侧边或胶带1的拐角处，且每个非线性断口100由两个胶带单体的断面形成；图1～图6给出了非线性断口100可以选择的三种形状，分别为L型、Z型或S型，但本公开的实施例并不仅限于此，例如，还可以是能够阻挡背光模组发出的光漏出的非线性断口100的任何其他形状。
下面结合图1～图6说明在框型结构中，非线性断口100与胶带单体的对应位置。以矩形框为例进行说明。
一、如图1和图2所示的非线性断口100的形状为L型。需要说明的是，胶带通常具有一定的厚度，相应的断口包括断面(垂直于胶带的粘合面)，例如，参考性的可以理解为垂直于纸面。本实施例中，非线性断口100包括第一胶带单体11的断面和第二胶带单体12的断面，第一胶带单体11的断面定义为第一平面，而第二胶带单体12的断面定义为包括第二平面和第三平面的L型结构，第一平面位于第二平面和第三平面所形成的区域内。
如图1所示，当非线性断口的形状为L型，且非线性断口100开设在胶带1的拐角时，第一平面与第二平面形成作为光线出口的竖直间隔，第三平面与第二胶带单体12的长边所在侧面形成作为光线入口的水平间隔，竖直间隔和水平间隔形成L型的非线性断口100。而由于第一平面与第二平面相对，第一平面沿第一胶带单体11的宽度方向形成，第二平面沿第二胶带单体12的长度方向开设，因此，第一胶带单体11的宽度受到第二胶带 单体12的长度制约，而无法受到第二胶带单体的宽度制约，而为了减少制作胶带1的复杂度，可以使用一条宽度相同的胶带裁剪成第一胶带单体11和第二胶带单体12，这样方便了第一胶带单体11和第二胶带单体12的制作。
另外，当非线性断口开设在胶带1的拐角处时，光线(图1中所示箭头方向)沿着L型的非线性断口100中的水平间隔向外漏出，会被第二胶带单体12中的第二平面所阻挡，而无法沿直线传播，从而减少甚至避免漏光问题的发生。减少漏光或避免漏光是与光线射到第二平面的入射角有关，理想状态下，当光线射到第二平面的入射角为0°时，其能够被完全返回，此时可完全避免漏光。为了避免漏光，可尽量减小第一胶带单体11的侧边和第三平面之间的距离，以调整光线射到第二平面的入射角，使其尽量接近0°。
如图2所示，当非线性断口的形状为L型，且开设在胶带1的侧边上。此时第二平面与第一胶带单体11的长边所在侧面形成作为光线出口的竖直间隔，第三平面与第一平面形成作为光线入口的水平间隔，水平间隔和竖直间隔形成L型的非线性断口100。而由于第一平面与第三平面相对，第一平面沿第一胶带单体11的宽度方向形成，第三平面沿第二胶带单体12的宽度方向形成，因此，第一胶带单体11的宽度受到第二胶带单体12的宽度制约；换句话说，第一胶带单体11的宽度和第二胶带单体12的宽度不同，在制作遮光胶带1时，裁剪第一胶带单体11和第二胶带单体12时，需要在不同宽度的胶带上裁剪，增加了制作胶带1的复杂度。可以使用一条宽度相同的胶带裁剪成第一胶带单体11和第二胶带单体12，这样方便了第一胶带单体11和第二胶带单体12的制作。
另外，当非线性断口开设在胶带1的侧边时，光线(图2中所示箭头方向)沿着非线性断口100向外漏出，会被第二胶带单体12的中的第二平面所阻挡，而无法沿直线传播，从而减少甚至避免漏光问题的发生，而减少漏光或避免漏光是与光线射到第二平面的入射角有关。理想状态下，当光线射到第二平面的入射角为0°时，其能够被完全返回，此时可完全避免漏光。为了避免漏光，可尽量减小第三平面和第一平面的距离，以调整光线射到L型平面的入射角，使其尽量接近0°。
二、如图3和图4所示的非线性断口100的形状为Z型，可以开设在 遮光胶带1的拐角或侧边上；该非线性断口100包括第一胶带单体11的断面和第二胶带单体12的断面。第一胶带单体11的断面定义为包括依次相连的第一平面、第二平面、第三平面的Z字型结构；第二胶带单体12的断面定义为包括依次相连的第四平面、第五平面、第六平面的Z字型结构。
如图3所示，当非线性断口100的形状为Z型，且开设在遮光胶带1的拐角的状态，此时第一平面和第四平面形成作为光线出口的第一竖直间隔，第二平面与第五平面形成第一水平间隔，第三平面和第六平面形成第二竖直间隔，第一竖直间隔、第一水平间隔和第二竖直间隔依次连通成Z型的非线性断口。
当非线性断口100开设在胶带1的侧边处，光线(图3中所示箭头方向)沿着非线性断口100向外漏出，会被第二胶带单体12的中的第六平面所阻挡，而无法沿直线传播，从而减少甚至避免漏光问题的发生。而减少漏光或避免漏光是与光线射到第六平面的入射角有关。理想状态下，当光线射到第六平面的入射角为0°(度)时，其能够被完全返回，此时可完全避免漏光。而为了调整光线射到第六平面的入射角为0°，可以在第六平面上再连接第七平面，第七平面与第一胶带单体11的长边所在侧面形成作为光线入口的第二水平间隔；然后调整第七平面与第一胶带单体的长边之间的距离，以调整该水平间隔的宽度，借此可以调整光线射到第六平面的入射角，使光线射到第六平面的入射角尽量接近0°，以减小漏光。
如图4所示，当非线性断口100的形状为Z型，且开设在胶带1的侧边时，此时第一平面和第四平面形成作为光线出口的第一水平间隔，第二平面与第五平面形成竖直间隔，第三平面和第六平面形成作为光线入口的第二水平间隔，第一水平间隔、竖直间隔、第二水平间隔依次连通形成Z型的非线性断口。
当非线性断口100开设在胶带1的侧边时，光线(图4中所示箭头方向)沿着非线性断口100向外漏出，会被第二胶带单体12的第六平面所阻挡，而无法沿直线传播，从而减少甚至避免漏光问题的发生，而减少漏光或避免漏光是与光线射到第五平面的入射角有关。理想状态下，当光线射到第五平面的入射角为0°时，其能够被完全返回，此时可完全避免漏光。为了避免漏光，可尽量减小第六平面和第三平面的距离，以减小第二水平间隔的宽度，从而调整光线射到第六平面的入射角，使其尽量接近0°。
通过上述分析可知，当非线性断口开设在遮光胶带1的拐角处时，第二胶带单体12的断面结构比较复杂，因此，可以设定第二胶带单体的宽度大于第一胶带单体的宽度。
三、如图5和图6所示的非线性断口100的形状为S型，可以开设在胶带1的拐角或侧边上；且该非线性断口100包括第一胶带单体11的断面和第二胶带单体12的断面，第一胶带单体11的断面定义为第一S曲面，第二胶带单体12的断面定义为第二S曲面，第一S曲面和第二S曲面相对且具有间隔，以形成S型的非线性断口。
通过图5和图6所示的非线性断口100的结构可知，光线(图5和中所示箭头方向图6中所示箭头方向)沿着非线性断口100向外漏出，会被第二胶带单体12上的第一S曲面或第二胶带单体上的第二S曲面所阻挡，而无法沿直线传播，从而减少甚至避免漏光问题的发生。减少漏光或避免漏光与光线射到第一S曲面或第二S曲面的入射角有关。理想状态下，当光线射到第一S曲面或第二S曲面的入射角为0°时，其能够被完全返回，此时可完全避免漏光。而为了调整光线射到第一S曲面或第二S曲面的入射角为0°，可以通过改变第一S曲面或第二S曲面的曲率，以调整第一S曲面或第二S曲面，使光线射到第一S曲面或第二S曲面的入射角尽量接近0°，以减小漏光。
需要说明的是，胶带1可以为能够阻止背光模组发出的光从背光模组和液晶显示面板之间的缝隙向外漏出各种各样的结构。如需要遮光的部分是异形，那么相应的胶带单体可以与胶带单体之间的断口组成适应于需要遮光部分的各种形状的相应的形状，例如，圆形，梯形或者其它异形结构。另外，上述图1-6中所示的第一胶带单体11的断面和第二胶带单体12的断面垂直于纸面。
组成胶带1的胶带单体的种类也可以多种多样，其一般决定于胶带的整体结构，例如，可以分为线性胶带单体或非线性胶带单体；而且非线性胶带单体可以包括两个相连的窄边部，也可以包括宽边部以及与宽边部相连的窄边部。
下面以胶带1为框型结构为例，说明非线性断口100开设的位置和数量对胶带单体种类的影响。
如图7所示，当非线性断口100开设在胶带1的侧边上时，胶带1由 四个胶带单体围成框型结构，分别为第一线性胶带单体31、第一U型胶带单体32、第二线性胶带单体33和第二U型胶带单体2。第一U型胶带单体32和第二U型胶带单体2均为非线性胶带单体中的一种)。第一线性胶带单体31与第一U型胶带单体32相对接以形成第一非线性断口101，第一U型胶带单体32和第二线性胶带单体33相对接以形成第二非线性断口102，第二线性胶带单体33和第二U型胶带单体2相对接以形成第三非线性断口103，第二U型胶带单体2和第一线性胶带单体31相对接以形成第四非线性断口104。另外，第一非线性断口101和第三非线性断口103的连线、第二非线性断口102和第四非线性断口104的连线相交于中心O点，且第一非线性断口101与第三非线性断口103关于O点中心对称，第二非线性断口102与第四非线性断口104关于O点中心对称。虽然图7给出的遮光胶带1中非线性断口的数量和位置要求，但是本公开的实施例并不仅限于此，例如，相关领域普通技术人员在制作遮光胶带的时候可以根据遮光胶带的面积来决定非线性断口的位置和数量。
请参阅图8，当非线性断口100设在遮光胶带1的拐角处时，胶带1由四个胶带单体围成框型结构，分别为第一线性胶带单体31、第三线性胶带单体32’、第二线性胶带单体33和第四线性胶带单体2’。第一线性胶带单体31与第三线性胶带单体32’相对接以形成第一非线性断口101，第三线性胶带单体32’和第二线性胶带单体33相对接以形成第二非线性断口102，第二线性胶带单体33和第四线性胶带单体2’相对接以形成第三非线性断口103，第四线性胶带单体2’和第一线性胶带单体31相对接以形成第四非线性断口104。另外，第一非线性断口101和第三非线性断口103的连线、第二非线性断口102和第四非线性断口104的连线相交于中心O点，且第一非线性断口101与第三非线性断口103关于O点中心对称，第二非线性断口102与第四非线性断口104关于O点中心对称。虽然图8给出了遮光胶带1中非线性断口的数量和位置要求，但是本公开的实施例并不仅限于此，例如，本领域技术人员在制作遮光胶带的时候可以根据遮光胶带的面积来决定非线性断口的位置和数量。
如图9所示，非线性断口100设在遮光胶带1的拐角处时，胶带1由两个非线性胶带单体围成框型结构，两个非线性胶带单体分别为第一L型胶带单体31’和第二L型胶带单体33’；且第一L型胶带单体31’和第 二L型胶带单体33’形成第一非线性断口101和第二非线性断口102，且在胶带1的框型结构上呈对角设置。
需要说明的是，胶带1上的多个非线性断口100不仅可以开设在胶带1的侧边或胶带1的拐角处，也可以是其中有些开设在胶带1的侧边，其他的开设在遮光胶带1的拐角处。
胶带单体为非线性结构时，胶带单体可以如图7中的第一U型胶带单体32和图9中的第二L型胶带单体33’一样，包括两个相连的窄边部，也可以如图7中的第二U型胶带单体2和如图9中的第一L型胶带单体31’一样包括宽边部以及与宽边部相连的窄边部。
另外，为了进一步避免材料浪费所引起的胶带1制作成本升高的问题，胶带单体还可以包括若干能够遮光的胶条，相邻胶条之间具有间隔。这样，在制作胶带1时，可以将若干胶条采用拼凑的方式形成胶带单体，这种方式可以进一步利用胶带中宽度比较小的废料，而无需特别寻找与胶带单体的宽度相同的胶带，减少了胶带废料的产生。而且，胶带单体中，若干胶条之间具有间隔，背光模组高温高湿可靠性测试时，这些间隔能够进一步提高背光模组中的膜材排气效率，防止胶带变形(原因与非线性缺口100类似)。
下面以图9所示的胶带1的结构中，第一L型胶带单体31’为例说明胶体如何形成胶带单体。
如图9-10所示，第一L型胶带单体31’包括若干条L型胶条310’，每个L型胶条310’包括宽胶条部和窄胶条部；若干条L型胶条平行设置。但是本公开的实施例并不限于图10中所显示的方式。
本公开实施例提供的胶带上开设有多个非线性断口，当背光模组发出的光从背光模组和液晶显示面板之间的缝隙向外漏出时，非线性断口利用自身能够阻止光的直线传播的特性，使背光模组发出的光无法从非线性断口处漏出；可见，本公开实施例提供的胶带中，虽然在胶带上开设了多个非线性断口，但是由于背光模组发出的光无法从非线性断口处漏出，因此，本公开提供的胶带仍然具有良好的遮光性能，能够防止背光模组发出的光从背光模组和液晶显示面板之间的缝隙向外漏出。而且，多个非线性断口将胶带分隔成对应的多个遮光胶带单体，本公开实施例的胶带可以采用拼凑的方式制作，避免了将整块的遮光材料中部挖空后，被挖去的部分不能 使用所造成的材料浪费问题。
另外，本公开实施例提供的胶带上开设有多个非线性断口，在对具有这种结构的背光模组中的膜材进行高温高湿等可靠性测试时，胶带上开设的非线性断口为背光模组中的膜材排气提供了通道，使背光模组中的膜材可以实现有效排气；而且，多个非线性断口将胶带分隔成对应的多个遮光胶带单体，因此，每个遮光胶带单体能够随着背光模组因温度变化所带来的延展或收缩，对应发生延展或收缩，而不会影响到其他胶带单体，从而保证了胶带的遮光效果。
本公开实施例还提供了一种背光模组，包括上述技术方案提到的胶带。
本公开实施例提供的背光模组的有益效果与上述技术方案的胶带的有益效果相同，在此不做赘述。
本公开的实施例还提供了一种显示装置，包括上述技术方案提到的背光模组。
本公开实施例提供的显示装置的有益效果与上述技术方案的背光模组的有益效果相同，在此不做赘述。
上述实施例提供的显示装置可以为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框或导航仪等任何具有显示功能的产品或部件。
在上述实施方式的描述中，各特征、结构、材料或者特点可以在任何的一个或多个实施例或示例中以合适的方式结合或省略。
以上所述，仅为本公开的示例性实施例，但本公开的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本公开实施例揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本公开的保护范围之内。
本申请要求于2016年01月04日提交的名称为“一种胶带、背光模组及显示装置”的中国专利申请No.201620005747.0的优先权，其全文通过引用合并于本文。

Claims (12)

  1. 一种胶带，包括多个非线性断口，多个所述非线性断口将所述胶带分隔成对应的多个胶带单体。
  2. 根据权利要求1所述的胶带，其中，所述非线性断口的形状包括L型、Z型或S型。
  3. 根据权利要求1或2所述的胶带，其中，所述非线性断口设在所述胶带的拐角或所述胶带的侧边上；所述非线性断口包括第一胶带单体的断面和第二胶带单体的断面。
  4. 根据权利要求3所述的胶带，其中，当所述非线性断口的形状为Z型时，所述第一胶带单体的断面为包括依次相连的第一平面、第二平面、第三平面的Z字型结构，所述第二胶带单体的断面为包括依次相连的第四平面、第五平面、第六平面的Z字型结构；
    且在所述非线性断口设在所述胶带的拐角时，所述第二胶带单体的宽度大于所述第一胶带单体的宽度，所述第六平面连接有与所述第六平面垂直设置的第七平面；所述第一平面和所述第四平面形成作为光线出口的第一竖直间隔，所述第二平面与所述第五平面形成第一水平间隔，所述第三平面和所述第六平面形成第二竖直间隔，所述第一竖直间隔、所述第一水平间隔和所述第二竖直间隔依次连通成Z型的非线性断口，所述第七平面与所述第一胶带单体的长边所在侧面形成作为光线入口的第二水平间隔；或
    在所述非线性断口设在所述胶带的侧边时，所述第一平面和所述第四平面形成作为光线出口的第一水平间隔，所述第二平面与所述第五平面形成竖直间隔，所述第三平面和所述第六平面形成作为光线入口的第二水平间隔，所述第一水平间隔、所述竖直间隔、所述第二水平间隔依次连通形成Z型的非线性断口。
  5. 根据权利要求1～3中任一项所述的胶带，其中，所述胶带的轮廓为多个胶带单体形成的框型轮廓。
  6. 根据权利要求1～3中任一项所述的胶带，其中，所述胶带单体为线性胶带单体或非线性胶带单体；且所述胶带单体的形状为非线性时，所述胶带单体包括宽边部以及与所述宽边部相连的窄边部，或所述胶带单体包 括两个相连的窄边部。
  7. 根据权利要求6所述的胶带，其中，每个所述胶带单体包括若干能够遮光的胶条，相邻胶条之间具有间隔。
  8. 根据权利要求1所述的遮光胶带，其中，所述胶带可应用于显示装置，并与所述显示装置中的背光模组的边缘轮廓相匹配。
  9. 根据权利要求3所述的遮光胶带，其中，当所述非线性断口的形状为L型时，所述第一胶带单体的断面为第一平面，所述第二胶带单体的断面为包括依次相连的第二平面、和第三平面的L字型结构；
    且当所述非线性断口开设在胶带的拐角时，所述第一平面与所述第二平面形成作为光线出口的竖直间隔，所述第三平面与所述第二胶带单体的长边所在侧面形成作为光线入口的水平间隔，所述竖直间隔和所述水平间隔形成L型的非线性断口；或
    当所述非线性断口开设在胶带的侧边时，所述第二平面与所述第一胶带单体的长边所在侧面形成作为光线出口的竖直间隔，所述第三平面与所述第一平面形成作为光线入口的水平间隔，所述水平间隔和所述竖直间隔形成L型的非线性断口。
  10. 根据权利要求3所述的遮光胶带，其中，当所述非线性断口的形状为S型时，所述第一胶带单体的断面为第一S曲面，所述第二胶带单体的断面为第二S曲面，所述第一S曲面和所述第二S曲面相对接且具有间隔，以形成具有S型的非线性断口。
  11. 一种背光模组，包括权利要求1～10中任一项所述的胶带。
  12. 一种显示装置，其特征在于，包括权利要求11所述的背光模组。
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