WO2017024756A1 - 灯条、背光模组及其组装方法、显示装置 - Google Patents

灯条、背光模组及其组装方法、显示装置 Download PDF

Info

Publication number
WO2017024756A1
WO2017024756A1 PCT/CN2016/070235 CN2016070235W WO2017024756A1 WO 2017024756 A1 WO2017024756 A1 WO 2017024756A1 CN 2016070235 W CN2016070235 W CN 2016070235W WO 2017024756 A1 WO2017024756 A1 WO 2017024756A1
Authority
WO
WIPO (PCT)
Prior art keywords
structural member
light
circuit board
flexible circuit
guide plate
Prior art date
Application number
PCT/CN2016/070235
Other languages
English (en)
French (fr)
Inventor
夏小丽
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
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 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 US15/108,170 priority Critical patent/US20170199318A1/en
Publication of WO2017024756A1 publication Critical patent/WO2017024756A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • 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
    • G02B6/0066—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 characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • F21V17/00—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages
    • F21V17/10—Fastening of component parts of lighting devices, e.g. shades, globes, refractors, reflectors, filters, screens, grids or protective cages characterised by specific fastening means or way of fastening
    • 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
    • F21V19/00—Fastening of light sources or lamp holders
    • F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
    • F21V19/0015—Fastening arrangements intended to retain light sources
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/0025—Diffusing sheet or layer; Prismatic sheet or layer
    • 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
    • G02B6/0065—Manufacturing aspects; Material aspects
    • 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
    • G02F1/1335—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

Definitions

  • Embodiments of the present invention relate to the field of display technologies, and in particular, to a light bar, a backlight module, an assembly method thereof, and a display device.
  • the backlight module is one of the key components of the liquid crystal display device. Since the liquid crystal itself does not emit light, the main function of the backlight module is to provide a uniform and high-luminance illuminant for the liquid crystal panel.
  • the basic principle is to use a commonly used point or line illuminant. Provided on both sides or one side of the light guide plate as a light source, the point or linear illuminant as a light source is converted into a high-brightness and uniform surface illuminator by an effective optical mechanism (light guide plate, diffusion sheet, etc.), so that the liquid crystal panel can be normally displayed. image.
  • backlight modules can also be used in digital photo frames, electronic paper, mobile phones and other display devices that require backlighting.
  • FIG. 1 is a partial cross-sectional view of a backlight module applied to, for example, a mobile phone type product in the prior art, in which a light source 152 (eg, an LED lamp) is disposed at one edge of the light guide plate 16; FPC ( The flexible circuit board 151 is provided with black ink on the surface close to the light guide plate 16 for absorbing light emitted from the vicinity of the edge of the light guide plate 16 near the light source; and an optical film (such as a diffusion sheet) located above the light exit surface of the light guide plate. The edge portion of the 14 near the light source is placed on the FPC 151.
  • a light source 152 eg, an LED lamp
  • FPC The flexible circuit board 151 is provided with black ink on the surface close to the light guide plate 16 for absorbing light emitted from the vicinity of the edge of the light guide plate 16 near the light source
  • an optical film such as a diffusion sheet
  • the thickness of the FPC 151 is currently the thinnest and is more than 0.07 mm, and has a certain hardness, there is a certain gap between the light guide plate 16 and the optical film 14 (such as the diffusion sheet) above it (as shown in FIG. 1). As shown in the dashed line, the light that exits the light guide plate 16 is leaked out of the gap and cannot be absorbed by the black ink, so there is a problem that the front side of the lamp is bright, that is, the edge of the liquid crystal panel near the light source appears. Brighter areas, which will seriously affect display efficiency fruit.
  • the FPC 151 is adhered to the front position of the light guide plate 16 with a black tape, and at the same time, the light emitted from the edge of the light guide plate 16 can be absorbed by the black tape, but due to the tape ( That is, the aforementioned black tape is adhered to the light guide plate 16, which will destroy the total reflection of light in the light guide plate 16, resulting in light loss; in addition, due to the superposition of the thickness of the FPC 151 and the tape, the light guide plate 16 and the light exiting thereof are also caused. There is a gap between the optical film layers on the surface (such as the diffusion sheet), so there is also a problem of bright edges in front of the lamp.
  • Embodiments of the present invention provide a light bar, a backlight module, an assembly method thereof, and a display device, which can improve the problem of front edge of the lamp due to a gap between the light guide plate and the optical film layer on the light exit surface thereof.
  • a light bar comprising: a light source, a flexible circuit board, and a structural member made of a light absorbing material; wherein the structural member is in the form of a sheet having a thickness smaller than the flexible circuit board The thickness of the edge portion of the structural member in the longitudinal direction and the edge portion of the flexible circuit board in the longitudinal direction overlap.
  • the structural member is made of a flexible light absorbing material.
  • the structural member is made of a polyterephthalic plastic.
  • the structural member is adhered to the flexible circuit board by a glue layer.
  • the length of the structural member is the same as the length of the flexible circuit board.
  • the structural member has a thickness of less than 0.07 mm.
  • a backlight module including any of the foregoing light bars.
  • the backlight module further includes a light guide plate, wherein the light bar is disposed on at least one side of the light guide plate such that a structural member in the light bar is placed on the light guide plate. On the light surface.
  • the backlight module further includes a diffusion sheet, and an edge portion of the diffusion sheet adjacent to the light source is pressed against a portion of the structural member that is not overlapped with the flexible circuit board.
  • a display device comprising any of the above Light module.
  • a method for assembling a backlight module including:
  • the flexible circuit board to which the structural member is attached is disposed on at least one side of the light guide plate such that the structural member is placed on a light emitting surface of the light guide plate;
  • An edge portion of the diffusion sheet near the light source is crimped onto a portion of the structural member that is not overlapped with the flexible circuit board.
  • the structural member is adhered to the flexible circuit board by a glue layer
  • the light bar, the backlight module, the assembly method thereof and the display device provided by the embodiment of the invention add a thin structural member made of a light absorbing material to the light bar, when the light bar is disposed in the backlight module
  • An optical film layer eg, a diffusion sheet
  • the thickness thereof can be as thin as possible, at least smaller than the thickness of the flexible circuit board, so that the light guide plate and other optical film layers located thereon can be reduced.
  • the gap between the sheets improves the problem of bright edges in front of the lamp.
  • FIG. 1 is a partial cross-sectional view of a conventional backlight module
  • FIG. 2 is a schematic diagram of components of a light bar according to an embodiment of the present invention.
  • FIG. 3 is a schematic diagram of a combination of an FPC and an adhesive tape according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a light bar according to an embodiment of the present invention.
  • FIG. 5 is a partial cross-sectional view of a light bar in a backlight module according to an embodiment of the present invention, along a width direction of the light bar;
  • FIG. 6 is a schematic structural diagram of a backlight module according to an embodiment of the present disclosure.
  • FIG. 7 is a flowchart of a method for assembling a backlight module according to an embodiment of the present invention.
  • FIG. 8(a) and FIG. 8(b) are respectively a comparison diagram of effects of the conventional backlight module and the backlight module provided by the embodiment of the present invention.
  • the light bar includes: a light source 152, a flexible circuit board 151, and a structural member 1 made of a light absorbing material, wherein the structural member 1 is thin.
  • the thickness is smaller than the thickness of the flexible circuit board 151, and the edge portion of the structural member 1 in the longitudinal direction overlaps with the edge portion of the flexible circuit board 151 in the longitudinal direction, that is, the edge portion of the structural member 1 in the longitudinal direction. It is attached to the edge portion of the flexible circuit board 151 in the longitudinal direction.
  • the light source 152 is connected to the flexible circuit board to provide a point light source or a line light source forming the backlight module, which may be an LED lamp or a cathode fluorescent tube, and the light source 152 may be directly integrated on the flexible circuit board 151.
  • the flexible circuit board 151 can also be electrically connected to the light source 152 through a wire.
  • the light source may be disposed at one or more edges of the light guide plate of the backlight module such that light emitted from the light source is coupled into the light guide plate.
  • the "edge portion” is not limited to including only the outermost edge of the member, and may further include a portion extending from the outermost edge to the inside by a certain distance.
  • the "length direction” refers to the direction along the long sides of the structural member and the flexible circuit board (as in the horizontal direction parallel to the paper surface in FIGS. 2-4, In Fig. 5, the direction is perpendicular to the plane of the paper).
  • “Width direction” means the direction along the broad sides of the structural member and the flexible circuit board (as in the vertical direction parallel to the paper surface in FIGS. 2-4, in the horizontal direction parallel to the paper surface in FIG. 5) .
  • the FPC 151 in the prior art extends over the edge portion of the light guide plate 16 on the side close to the light source, and then the diffusion sheet 14 is pressed against the FPC 151, actually the portion of the extended FPC 151 is There is no circuit, so the embodiment of the present invention can design the width dimension of the FPC 151 to be smaller to allow the space to be laid, but the width of the FPC 151 in this embodiment is
  • the width of the structural member 1 is not limited, and generally, as long as the structural member 1 is attached to the flexible circuit board 151, as shown in FIG. 4, the lower side edge of the flexible circuit board 151 is to the upper side edge of the structural member 1.
  • the distance D should be less than or equal to the space size reserved for mounting the light bar 15 in the backlight module (perpendicular to the length direction of the light bar 15 in a plane parallel to the light guide plate), D is the width and structural part of the flexible circuit board 151 The sum of the widths of 1 is further reduced by the size in which the structural member 1 and the flexible circuit board 151 overlap each other.
  • the flexible circuit board 151 of the light strip provided by the present invention is provided when the other design dimensions of the existing backlight module are unchanged. Together with the width D occupied by the structural member 1, it is equal to the size of the space reserved for mounting the light bar 15 in the backlight module.
  • the length of the structural member 1 may be the same as the length of the FPC 151 as shown in FIG.
  • the structural member 1 is made of a light absorbing material, and the edge portion of the structural member 1 in the longitudinal direction is attached to the edge portion of the flexible circuit board 151 in the longitudinal direction, when the light bar 15 is mounted to the backlight In the module, the structural member 1 is flattened and placed on the light-emitting surface of the light guide plate 16, and is pressed by the diffusion sheet 14 in the backlight module on a portion not overlapping the flexible circuit board.
  • the light exiting the light guide plate at the edge portion of the light guide plate is absorbed by the structural member 1 to avoid light leakage; at the same time, since the structural member is only pressed on the light guide plate instead of being bonded, the light is not destroyed in the light guide plate 16 reflection.
  • the structural member 1 does not need to design a circuit, and the thickness thereof can be as thin as possible (generally at least smaller than the thickness of the flexible circuit board 151), so that the gap between the diffusion sheet 14 and the light guide plate 16 can be effectively reduced. (as shown in the dashed line in Figure 5), thereby improving the problem of front edge of the lamp.
  • the thickness of the flexible circuit board 151 is generally 0.07 mm, so the thickness of the structural member 1 is at least less than 0.07 mm to serve to reduce the gap between the diffusion sheet 14 and the light guide plate 16.
  • an optical film layer other than the diffusion sheet may be disposed above the light-emitting surface of the light guide plate.
  • the edge portion of the other film layer close to the light source is pressed on the structural member.
  • the portion of the 1 that is not overlapped with the flexible circuit board can effectively reduce the gap between the light guide plate and the other optical film layer, and can also improve the problem of the front edge of the lamp.
  • the structural member 1 can be made of a flexible light absorbing material, and the structural member 1 can be further attached to the light guide plate 16, which can further reduce the gap between the astigmatism sheet 24 and the light guide plate 16, thereby weakening the front edge of the light. phenomenon.
  • the structural member 1 may be made of polyethylene terephthalate (PET) having a thickness of 0.025 mm.
  • the edge portion of the structural member 1 can be attached to the flexible circuit board 151 in various manners that can be conceived by those skilled in the art. This embodiment is not limited. As shown in FIG. 4, the flexible circuit board 151 can be disposed on the light guide plate 16 at the surface. The surface layer is provided with a rubber layer 3, and the edge portion of the structural member 1 in the longitudinal direction is pasted on the edge portion of the flexible circuit board 151 through the adhesive layer 3.
  • the embodiment of the invention further provides a backlight module, comprising: any of the light bars described in the foregoing embodiments.
  • the backlight module according to the embodiment of the present invention includes any one of the foregoing embodiments, in the embodiment regarding the light bar, the position, shape, forming material, and The explanation of the connection relationship between components and the like is also applicable to other embodiments of the present invention.
  • the backlight module may further include a light guide plate, wherein the light bar is disposed on at least one side of the light guide plate, so that the structural member is placed on the light emitting surface of the light guide plate, specifically, the structural member is along the light guide plate. At least one side portion of the light-emitting surface extends and overlaps an edge portion of the light-emitting surface of the light guide plate.
  • the light emitted by the light bar is guided to the inside of the backlight module through the light guide plate, and a plurality of light exit points are disposed on the light guide plate, so that the light can be emitted from the light exit point of the light guide plate, thereby being emitted from the light bar.
  • Light is directed to various locations of the backlight module to form a surface illuminator.
  • the optical component such as an optical film layer such as a diffusion sheet
  • the structural member by placing the structural member on the edge portion of the light-emitting surface of the light guide plate, the optical component (such as an optical film layer such as a diffusion sheet) of the backlight module above the light guide plate can be pressed onto the structural member. Since the thickness of the structural member is relatively thin, the gap between the light guide plate and the optical member thereon can be reduced to improve the problem of the front edge of the liquid crystal display panel made of the backlight module.
  • the backlight module may further include a diffusion sheet, and an edge portion of the diffusion sheet near the light source is overlaid on a portion of the structural member that is not overlapped with the flexible circuit board.
  • the diffusion sheet can function to uniformly emit light emitted from the light exit point of the light guide plate. Moreover, by pressing the diffusion sheet on the structural member having a small thickness, the gap between the light guide plate and the diffusion sheet can be reduced, thereby improving the problem of the front edge of the liquid crystal display panel made of the backlight module.
  • the backlight module includes a back plate 19 , a plastic frame 18 , a reflective sheet 17 , a light guide plate 16 , a diffusion sheet 14 , a lower prism 13 , and an upper prism from bottom to top.
  • the light-shielding tape 11 further includes a light bar 15 disposed on one side of the light guide plate 16, As shown in FIG. 5, the structural member 1 in the light bar 15 is flattened and placed on the light-emitting surface of the light guide plate 16, and the edge portion of the diffusion sheet 14 near the light source is pressed against the structural member 1.
  • the structure of the backlight module may not be limited to the above-mentioned components, and other one or more kinds of optical films may be included according to actual needs, which will not be described in detail herein.
  • the backlight module provided by the invention can improve the utilization of light energy and improve the problem of bright edges in front of the lamp by adopting the light bar described above.
  • the embodiment of the invention further provides a display device comprising any of the above backlight modules.
  • the display device adopts the backlight module of the present invention. Based on the foregoing description, it can be seen that the utilization efficiency of the display device provided by the embodiment is high, and the problem of bright edges in front of the lamp can be improved, so that the display effect is better.
  • the display device may be any product or component having a display function such as a liquid crystal panel, an electronic paper, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, and the like.
  • the embodiment of the invention further provides a method for assembling a backlight module. As shown in FIG. 7, the assembly method includes:
  • a flexible circuit board 151 is provided.
  • the flexible circuit board can be integrated with an LED lamp or a cathode fluorescent tube, or a wire and an LED lamp or a cathode fluorescent tube to serve as a light source for the backlight module.
  • the edge portion of the structural member 1 in the longitudinal direction may be attached to the edge portion of the flexible circuit board by a glue layer.
  • the flexible circuit board 151 to which the structural member 1 is attached is disposed on at least one edge of the light guide plate, so that the structural member is placed on the light-emitting surface of the light guide plate.
  • the portion of the structural member 1 that is not overlapped with the flexible circuit board may be flattened and placed on the light-emitting surface of the light guide plate 16.
  • the step of mounting the film layer for example, before step S101, further includes the steps of assembling the back sheet, the bezel and the reflective sheet, and the step of assembling the optical components such as the prism and the lens after the step S104,
  • the mounting step is any desired film layer and steps known to those skilled in the art, and will not be described in detail herein.
  • the assembly method of the backlight module provided by the embodiment the light bar is assembled in the backlight module, the utilization ratio of the light energy can be improved, and the problem of the front edge of the lamp is improved, and the backlight module is applied to the display device. Can improve the display.
  • the width of the FPC 151 is reduced under the condition of ensuring effective adhesion between the FPC 151 and the light guide plate 16.
  • the front end of the FPC 151 is designed with a structural member 1 made of black PET, and the black PET is selected to have a thickness of 0.025 mm; On the structural member 1.
  • the light bar of the embodiment includes an FPC 151 (an LED lamp integrated on the FPC 151), a tape 3 and a structural member 1; the tape 3 is first combined with the FPC 151, that is, the tape 3 is attached to the FPC 151 for installation.
  • One side of the light guide plate 16 is at the time, and the right end of the figure is the tearing hand 4 of the tape 3; then, the structural member 1 made of black PET is combined with the combination of the above-mentioned tape 3 and FPC 151 to form the same as shown in FIG.
  • the light bar, this step is to adhere the structural member 1 to the edge of the FPC 151 in the longitudinal direction.
  • the process before the installation of the backlight module light bar is performed, and then the light bar shown in FIG. 4 is installed, so that the side to which the structural member 1 is attached is directed to the inner side, and the portion of the structural member 1 not attached to the FPC is flattened and The light-emitting surface of the light guide plate 16 is placed; then the diffusion sheet 14 is mounted, and the low-end end of the diffusion sheet 14 is pressed against the structural member 1; the subsequent steps are completed to complete the assembly of the backlight module.
  • the structural member 1 is formed by using black non-stick PET, and the external stray light can be effectively absorbed without losing the light energy inside the light guide plate.
  • the thickness of the structural member 1 formed by PET is very thin (0.025 mm), which can effectively reduce
  • the gap between the light guide plate 16 and the related components improves the utilization of light energy and improves the problem of bright edges in front of the lamp.
  • the elevation P of the diffusion sheet can also be reduced, thereby solving the problems that the film arching and displacement are easily caused during the pressing process of the existing light shielding tape.
  • FIG. 8(a) and FIG. 8(b) respectively show the effect comparison between the backlight module and the backlight module provided by the present invention. It can be seen that the bright side of the lower end of the backlight module in FIG. 8(a) is relatively obvious. The bright side of the lower end of the backlight module of the present invention shown in FIG. 8(b) is not obvious.
  • an element or layer when an element or layer is referred to as being “on” another element or layer, it may be directly on the other element or layer, or an element or layer may be present; likewise, when the element or layer is When the other element or layer is "under”, it may be directly under the other element or layer, or there may be at least one intermediate element or layer; when the element or layer is referred to as being between the two or two layers It may be a single element or layer between two or two layers, or more than one intermediate element or layer may be present.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种灯条（15）、背光模组及其组装方法、显示装置，涉及显示技术领域，能够改善由于导光板（16）与位于其上的光学膜层之间存在间隙而导致的灯前亮边问题。所述灯条（15）包括：光源（152），柔性电路板（151），以及由吸光材料制成的结构件（1）；所述结构件（1）为薄片状，其厚度小于所述柔性电路板（151）的厚度，且所述结构件（1）在长度方向上的边缘部分和所述柔性电路板（151）在长度方向上的边缘部分重叠。

Description

灯条、背光模组及其组装方法、显示装置
相关申请的交叉引用
本申请要求于2015年08月11日递交的中国专利申请第201510489436.6号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。
技术领域
本发明的实施例涉及显示技术领域，尤其涉及一种灯条、背光模组及其组装方法、以及显示装置。
背景技术
背光模组为液晶显示装置的关键组件之一，由于液晶本身不发光，背光模组的主要功能在于为液晶面板提供均匀、高亮度的发光体，其基本原理是将常用的点或线形发光体设置在导光板的两边或一边作为光源，通过有效光机构(导光板、扩散片等)将作为光源的点或线形发光体转化成高亮度且均匀的面发光体，以使液晶面板能正常显示影像。背光模组除了应用在液晶电视、液晶显示器之外，还可以应用在数码相框、电子纸、手机等需要背光的显示装置中。
参照图1所示，为现有技术中的一种应用于例如手机类产品的背光模组的部分截面示意图，其中，光源152(如，LED灯)设置在导光板16的一个边缘；FPC(柔性电路板)151在靠近导光板16的表面上设置有黑色油墨，用于吸收从导光板16的靠近光源的边缘附近射出的光；位于导光板的出光面上方的光学膜片(如扩散片)14的靠近光源的边缘部分搭设在FPC 151上。但由于FPC 151的厚度目前最薄也要0.07mm以上，且有一定的硬度，会使得导光板16与其上方的光学膜片14(如扩散片)之间存在一定的间隙(如图1中的虚框线中所示出的)，导致射出导光板16的光从间隙中泄露出来，而不能被黑色油墨吸收，因此会存在灯前亮边的问题，即在光源的附近的液晶面板边缘出现比较亮的区域，这将严重影响显示效 果。
另外，在现有另一种结构中，采用黑色胶带将FPC 151粘附在导光板16的灯前位置，同时，也可以利用黑色胶带吸收从导光板16的边缘射出的光，但由于胶带(即前述的黑色胶带)粘在导光板16上，会破坏光在导光板16内的全反射，导致光损失发生；此外，由于FPC 151和胶带厚度叠加，同样会造成导光板16和位于其出光面上的光学膜层(如扩散片)之间存在间隙，因此也会存在灯前亮边问题。
发明内容
本发明的实施例提供一种灯条、背光模组及其组装方法、和显示装置，能够改善由于导光板和位于其出光面上的光学膜层之间存在间隙导致的灯前亮边问题。
根据本发明的一个实施例，提供一种灯条，包括：光源、柔性电路板、以及由吸光材料制成的结构件；其中，所述结构件为薄片状，其厚度小于所述柔性电路板的厚度，且所述结构件在长度方向上的边缘部分和所述柔性电路板在长度方向上的边缘部分重叠。
在一个实施例中，所述结构件采用柔性吸光材料制成。
在一个实施例中，所述结构件采用聚对苯二甲酸类塑料制成。
在一个实施例中，通过胶层将所述结构件粘贴在所述柔性电路板上。
在一个实施例中，所述结构件的长度与所述柔性电路板的长度相同。
在一个实施例中，所述结构件的厚度小于0.07mm。
根据本发明的另一个实施例，提供一种背光模组，包括前述任一种灯条。
在一个实施例中，所述的背光模组还包括导光板，其中所述灯条设置于所述导光板的至少一个侧边，使得所述灯条中的结构件放置于所述导光板的出光面上。
在一个实施例中，所述背光模组还包括扩散片，所述扩散片的靠近所述光源的边缘部分压覆于所述结构件的未与所述柔性电路板重叠的部分上。
根据本发明的又一个实施例，提供一种显示装置，包括上述任一种背 光模组。
根据本发明的又一个实施例，提供一种背光模组的组装方法，包括：
提供柔性电路板面；
将薄片状、且厚度小于所述柔性电路板的结构件附着在所述柔性电路板上，使得所述结构件在长度方向上的边缘部分和所述柔性电路板在长度方向上的边缘部分重叠；
将附着有所述结构件的所述柔性电路板设置在导光板的至少一个侧边，使得所述结构件放置于所述导光板的出光面上；
将扩散片的靠近光源的边缘部分压覆于所述结构件的未与所述柔性电路板重叠的部分上。
在一个实施例中，通过胶层将所述结构件粘贴在所述柔性电路板上
本发明实施例提供的灯条、背光模组及其组装方法、显示装置，在灯条内增加一由吸光材料制成的厚度较薄的结构件，当将灯条设置在背光模组中时，可以使位于导光板之上的光学膜层(如，扩散片)压覆于结构件的未与所述印刷电路板重叠的部分之上。由于上述结构件呈薄片状，且上述结构件上不需要设计电路，其厚度可以尽可能做薄，至少要小于柔性电路板的厚度，因此可以减小导光板与位于其上的其他光学膜层(如扩散片)之间的间隙，从而改善灯前亮边的问题。
附图说明
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其它的附图。
图1为现有的一种背光模组的部分截面示意图；
图2为本发明实施例提供的灯条组成部件的示意图；
图3为本发明实施例提供的FPC与胶带的组合示意图；
图4为本发明实施例提供的灯条的结构示意图；
图5为本发明实施例提供的背光模组中灯条安装位置处沿灯条的宽度方向的部分截面示意图；
图6为本发明实施例提供的背光模组的结构示意图；
图7为本发明实施例提供的背光模组的组装方法流程图；
图8(a)和图8(b)分别为现有背光模组和本发明实施例提供的背光模组的效果对比图。
具体实施方式
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述。
本发明实施例提供一种灯条，如图4和图5所示，该灯条包括：光源152，柔性电路板151，以及由吸光材料制成的结构件1，其中，结构件1呈薄片状，其厚度小于柔性电路板151的厚度，并且，结构件1在长度方向上的边缘部分与柔性电路板151在长度方向上的边缘部分重叠，也即将结构件1在长度方向上的边缘部分附着在柔性电路板151在长度方向上的边缘部分上。
本领域技术人员可以理解，光源152连接到柔性电路板，以提供形成背光模组的点光源或线光源，其可以为LED灯或阴极荧光灯管，可以将光源152直接集成在柔性电路板151上，也可以将柔性电路板151通过导线电连接至光源152。在使用时，可以将光源设置在背光模组的导光板的一个或多个边缘，以使从光源发出的光被耦合进导光板。
需要说明的是，在本发明实施例中，“边缘部分”不限于仅包括部件的最外侧边缘，还可以包括从最外侧边缘向内部延伸一定距离的部分。
还需要说明的是，在本发明的实施例中，“长度方向”是指沿着结构件和柔性电路板的长边的方向(如在图2-4中为平行于纸面的水平方向，在图5中为垂直于纸面的方向)。“宽度方向”是指沿着结构件和柔性电路板的宽边的方向(如在图2-4中为平行于纸面的竖直方向，在图5中为平行于纸面的水平方向)。
如图1所示，现有技术中FPC 151会延伸搭接到导光板16的靠近光源的一侧的边缘部分，然后扩散片14压覆FPC 151上，实际上这部分延伸的FPC 151上并不存在电路，因此本发明实施例可将FPC 151宽度尺寸设计的小些，以便让出空间来布设结构件1，但本实施例对FPC 151宽度、 结构件1宽度不做限定，一般而言只要满足：当结构件1附着在柔性电路板151上后，如图4所示，柔性电路板151的下侧边缘到结构件1的上侧边缘的距离D应小于或等于背光模组中为安装灯条15预留的空间尺寸(在平行于导光板的平面内垂直于灯条15的长度方向)，D为柔性电路板151的宽度与结构件1的宽度之和再减去结构件1与柔性电路板151相互重叠的尺寸。在一个实施例中，当本发明实施例提供的灯条应用在背光模组中时，在现有背光模组其它设计尺寸均不变的情况下，本发明提供的光条的柔性电路板151连同结构件1的所占据的宽度D等于背光模组中为安装灯条15预留的空间尺寸。在一个实施例中，结构件1的长度可以如图4所示与FPC151的长度相同。
在本发明的实施例中，结构件1由吸光材料制成，结构件1在长度方向上的边缘部分附着在柔性电路板151的在长度方向上的边缘部分上，当灯条15安装至背光模组中时，结构件1展平并放置在导光板16的出光面上，并由背光模组中的扩散片14压覆在未与柔性电路板重叠的部分上。在导光板的边缘部分的射出导光板的光由结构件1吸收，可以避免漏光；同时，因结构件只是被压覆在导光板上而非黏合，不会破坏光在导光板16内的全反射。另外，上述结构件1上不需要设计电路，其厚度可以尽可能做薄(一般而言至少要小于柔性电路板151的厚度)，因此可以有效减小扩散片14与导光板16之间的间隙(如图5中的虚框线中所示出的)，从而改善灯前亮边问题。在本发明的一个实施例中，柔性电路板151的厚度一般为0.07mm，所以结构件1的厚度至少小于0.07mm，以起到减小扩散片14与导光板16之间间隙的作用。
可以理解，背光膜组中，导光板的出光面的上方也可以设置除扩散片之外的其他光学膜层，这种情况下，将该其他膜层的靠近光源的边缘部分压覆在结构件1的未与所述柔性电路板重叠的部分之上，可以有效减少导光板与该其他光学膜层之间的间隙，同样可以改善灯前亮边的问题。
在一个实施例中，上述结构件1可以采用柔性吸光材料制成，结构件1可以更贴附于导光板16上，可以进一步减少散光片24与导光板16的间隙，从而减弱灯前亮边现象。在一个实施例中，结构件1可采用聚对苯二甲酸类塑料(PET)制成，厚度为0.025mm。
上述结构件1的边缘部分可采用本领域技术人员可以想到的各种方式附着于柔性电路板151，本实施例不做限定，如图4所示，可以在柔性电路板151在面向导光板16的表面设置胶层3，将结构件1的在长度方向上的边缘部分通过胶层3粘贴在柔性电路板151的边缘部分。
本发明实施例还提供一种背光模组，包括：前述实施例所述的任一灯条。
需要说明的是，由于根据本发明实施例的背光模组包括前述实施例中的任一种灯条，因此在上关于灯条的实施例中，对各个部件的位置、形状、形成材料、以及部件之间的连接关系等的解释说明也适于本发明的其他实施例。
在一个实施例中，背光模组还可以包括导光板，其中灯条设置于导光板的至少一个侧边，使得结构件放置于导光板的出光面上，具体而言，结构件沿着导光板的出光面的至少一个侧边部分延伸，且与导光板的出光面的边缘部分重叠。
在该实施例中，灯条发出的光经导光板导向背光模组的内部，通过在导光板上设置多个出光点，使得光可以从导光板的出光点射出，从而将从灯条发出的光引导到背光模组的各个位置，以形成面发光体。
此外，在该实施例中，通过使结构件位于导光板的出光面的边缘部分，可以使背光模组的位于导光板上方的光学部件(如扩散片等光学膜层)压覆于结构件上，由于结构件的厚度比较薄，因此可以减少导光板与其上的光学部件之间的间隙，以改善由该背光模组制成的液晶显示面板的灯前亮边的问题。
在一个实施例中，背光模组还可包括扩散片，扩散片的靠近光源的边缘部分压覆于结构件的未与柔性电路板重叠的部分之上。在本实施例中，扩散片可起到均匀将从导光板的出光点射出的光的作用。而且，将扩散片压覆于厚度较薄的结构件上，可以减少导光板与扩散片之间的间隙，从而改善由该背光模组制成的液晶显示面板的灯前亮边的问题。
在一个具体实施例中，如图6所示，所述背光模组自下而上包括：背板19、胶框18、反射片17、导光板16、扩散片14、下棱镜13、上棱镜12、遮光胶带11，其中，还包括设置于导光板16的一个侧边的灯条15， 如图5所示，灯条15中的结构件1展平并放置于导光板16的出光面，扩散片14的靠近光源的边缘部分压覆于结构件1上。
本领域技术人员可以理解，背光模组的结构可以不限于上述的部件，根据实际需要还可以包括其它一种或多种光学膜片，在此不再一一详述。
本发明提供的背光模组，因采用了上面所述的灯条，可以提高光能的利用率并改善灯前亮边问题。
本发明实施例还提供一种显示装置，其包括上述任意一种背光模组。所述显示装置因采用本发明所述背光模组，基于前面叙述可知本实施例提供的显示装置光能的利用率高，能够改善灯前亮边的问题，因此显示效果更佳。所述显示装置可以为：液晶面板、电子纸、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
本发明实施例还提供一种背光模组的组装方法，如图7所示，该组装方法包括：
S101、提供柔性电路板151。
该柔性电路板上可以集成有LED灯或阴极荧光灯管，或通过导线与LED灯或阴极荧光灯管，以作为背光模组的光源。
S102、将薄片状、且厚度小于柔性电路板151的结构件1附着在柔性电路板151的边缘部分，使得结构件1在长度方向上的边缘部分和柔性电路板151在长度方向上的边缘部分重叠。
在一个实施例中，可通过胶层将结构件1在长度方向上的边缘部分附着在柔性电路板的边缘部分。
S103、将附着有结构件1的柔性电路板151设置在导光板的至少一个边缘，使得结构件放置于导光板的出光面上。
其中，结构件1的未与柔性电路板重叠的部分可以被展平并放置于导光板16的出光面上。
S104、将扩散片14的靠近光源的边缘部分压覆于结构件1的未与柔性电路板重叠的部分上。
可以理解的是，在本发明实施例提供的背光模组的组装方法中，在步骤S101之前、在步骤S104之后、以及步骤S101-S104之间还可以包括其 他膜层的安装步骤，例如，在步骤S101之前还包括组装背板、胶框和反射片等的步骤，在步骤S104之后还包括组装棱镜、透镜等光学部件的步骤，由于这些膜层及其安装步骤是可以采用本领域技术人员已知的任何所需膜层及步骤，本申请不再详述。根据本实施例提供的背光模组的组装方法将前述灯条组装在背光模组中，可以提高光能的利用率，并改善灯前亮边问题，将此背光模组应用到显示装置中，可以提高显示效果。
为了本领域技术人员更好的理解本发明实施例提供的灯条及背光模组的结构，下面通过具体的实施例对本发明进行详细说明。
本实施例在保证FPC 151与导光板16间有效粘附情况下，减小FPC151的宽度，FPC 151的前端设计黑色PET制成的结构件1，黑色PET选用0.025mm厚度；扩散片14设计搭在结构件1上。
具体如图2所示，本实施例灯条包括FPC 151(FPC 151上集成有LED灯)、胶带3和结构件1；先将胶带3与FPC 151组合，即将胶带3贴附在FPC 151安装时面向导光板16的一面，图中右端为胶带3的撕手4；然后，将黑色PET制成的结构件1再与上述胶带3和FPC 151的组合体进行组合，形成图4所示的灯条，本步骤即将结构件1的沿长度方向黏附在FPC151的边缘。
按现有流程进行背光模组灯条安装之前的工序，然后安装图4所示的灯条，使得附着有结构件1的一侧朝向内侧，结构件1的未附着于FPC的部分展平并放置于导光板16的出光面；随后安装扩散片14，扩散片14的近光端压覆于结构件1上；继续后续工序完成背光模组的组装。
本实施例采用黑色无粘性PET形成结构件1，可以在不损耗导光板内部光能的情况下，有效吸收外部杂光，同时PET形成的结构件1厚度很薄(0.025mm)，可以有效降低导光板16与相关部材之间的间隙，提高光能的利用率，改善灯前亮边问题。另外，采用本发明提供的灯条及安装方式，还能够降低扩散片的抬高P，从而解决现有遮光胶带压附过程中易造成膜材拱起、移位等问题。
图8(a)和图8(b)分别现有背光模组和本发明提供的背光模组的效果对比图，可以看出，图8(a)中背光模组下端的亮边比较明显，而图8(b)所示本发明背光模组下端的亮边不明显。
需要说明的是，在本发明的描述中，术语“上”、“之上”、“下”、“之下”、“顶”、“底”、“之间”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。例如，当元件或层被称为在另一元件或层“上”时，它可以直接在该另一元件或层上，或者可以存在中间的元件或层；同样，当元件或层被称为在另一元件或层“下”时，它可以直接在该另一元件或层下，或者可以存在至少一个中间的元件或层；当元件或层被称为在两元件或两层“之间”时，其可以为该两元件或两层之间的唯一的元件或层，或者可以存在一个以上的中间元件或层。
此外，还需要说明的是，当介绍本申请的元素及其实施例时，冠词“一”、“一个”、“该”和“所述”旨在表示存在一个或者多个要素；除非另有说明，“多个”的含义是两个或两个以上；用语“包含”、“包括”、“含有”和“具有”旨在包括性的并且表示可以存在除所列要素之外的另外的要素。
以上所述，仅为本发明的具体实施方式，但本发明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发明揭露的技术范围内，可轻易想到的变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应该以权利要求的保护范围为准。

Claims (11)

  1. 一种灯条，包括：光源和柔性电路板，其特征在于，还包括：由吸光材料制成的结构件；
    其中，所述结构件为薄片状，其厚度小于所述柔性电路板的厚度，且所述结构件在长度方向上的边缘部分和所述柔性电路板在长度方向上的边缘部分重叠。
    根据权利要求1所述的灯条，其特征在于，
    所述结构件采用柔性吸光材料制成。
  2. 根据权利要求2所述的灯条，其特征在于，
    所述结构件采用聚对苯二甲酸类塑料制成。
  3. 根据权利要求1-3中任一项所述的灯条，其特征在于，
    通过胶层将所述结构件粘贴在所述柔性电路板上。
  4. 根据权利要求1-3中任一项所述的灯条，其特征在于，所述结构件的长度与所述柔性电路板的长度相同。
  5. 根据权利要求1-3中任一项所述的灯条，其特征在于，
    所述结构件的厚度小于0.07mm。
  6. 一种背光模组，其特征在于，包括：权利要求1-6中任一项所述的灯条。
  7. 根据权利要求7所述的背光模组，其特征在于，还包括导光板，其中所述灯条设置于所述导光板的至少一个侧边，使得所述灯条中的结构件放置于所述导光板的出光面上。
  8. 根据权利要求8所述的背光模组，其特征在于，还包括扩散片，所述扩散片的靠近所述光源的边缘部分压覆于所述结构件的未与所述柔性电路板重叠的部分上。
  9. 一种显示装置，其特征在于，包括：权利要求7-9中任一项所述的背光模组。
  10. 一种背光模组的组装方法，其特征在于，所述方法包括：
    提供柔性电路板；
    将薄片状、且厚度小于所述柔性电路板的结构件附着在所述柔性电路板上，使得所述结构件在长度方向上的边缘部分和所述柔性电路板在长度 方向上的边缘部分重叠；
    将附着有所述结构件的所述柔性电路板设置在导光板的至少一个侧边，使得所述结构件放置于所述导光板的出光面上；
    将扩散片的靠近光源的边缘部分压覆于所述结构件的未与所述柔性电路板重叠的部分上。
  11. 根据权利要求11所述的背光模组的组装方法，其特征在于，所述将薄片状、且厚度小于所述柔性电路板的结构件附着在所述柔性电路板上包括：
    通过胶层将薄片状、且厚度小于所述柔性电路板的结构件附着在所述柔性电路板上。
PCT/CN2016/070235 2015-08-11 2016-01-06 灯条、背光模组及其组装方法、显示装置 WO2017024756A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/108,170 US20170199318A1 (en) 2015-08-11 2016-01-06 Light bar, backlight module and assembling method thereof and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510489436.6 2015-08-11
CN201510489436.6A CN105090798A (zh) 2015-08-11 2015-08-11 灯条、背光模组及其组装方法、显示装置

Publications (1)

Publication Number Publication Date
WO2017024756A1 true WO2017024756A1 (zh) 2017-02-16

Family

ID=54571821

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/070235 WO2017024756A1 (zh) 2015-08-11 2016-01-06 灯条、背光模组及其组装方法、显示装置

Country Status (3)

Country Link
US (1) US20170199318A1 (zh)
CN (1) CN105090798A (zh)
WO (1) WO2017024756A1 (zh)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105090798A (zh) * 2015-08-11 2015-11-25 京东方光科技有限公司 灯条、背光模组及其组装方法、显示装置
CN105759503A (zh) * 2016-05-03 2016-07-13 武汉华星光电技术有限公司 背光模组及其组装方法
CN107238971B (zh) * 2017-06-16 2020-05-15 厦门天马微电子有限公司 组合导光板、背光组件和显示面板
CN111197705A (zh) * 2018-11-20 2020-05-26 上海祁仁光电科技有限公司 一种超细型led柔性发光条
CN113759606A (zh) * 2021-09-13 2021-12-07 京东方科技集团股份有限公司 一种背光模组以及显示装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101852945A (zh) * 2009-04-01 2010-10-06 乐金显示有限公司 包括led光源的液晶显示设备
CN102089568A (zh) * 2008-08-29 2011-06-08 夏普株式会社 背光源装置以及具备该背光源装置的显示装置
CN202361184U (zh) * 2011-11-08 2012-08-01 深圳市嘉泰宏实业有限公司 改良的led背光源结构
CN203240400U (zh) * 2013-03-28 2013-10-16 深圳市华星光电技术有限公司 一种背光模组及使用该背光模组的液晶显示装置
CN104061488A (zh) * 2013-03-18 2014-09-24 群创光电股份有限公司 背光模块及显示装置
CN204403943U (zh) * 2015-01-27 2015-06-17 深圳市南极光电子科技有限公司 一种扩散膜头部附黑胶的背光源
CN105090798A (zh) * 2015-08-11 2015-11-25 京东方光科技有限公司 灯条、背光模组及其组装方法、显示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101135545B1 (ko) * 2009-12-16 2012-04-17 삼성모바일디스플레이주식회사 백라이트 유닛 및 이를 구비한 액정 표시 장치
JP5663434B2 (ja) * 2011-08-15 2015-02-04 株式会社ジャパンディスプレイ 表示装置
JP6025444B2 (ja) * 2012-08-03 2016-11-16 ミネベア株式会社 面状照明装置
JP5532104B2 (ja) * 2012-10-18 2014-06-25 オムロン株式会社 面光源装置、液晶表示装置及びモバイル機器
JP6180312B2 (ja) * 2013-12-17 2017-08-16 シチズン時計株式会社 Ｌｅｄバックライト

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102089568A (zh) * 2008-08-29 2011-06-08 夏普株式会社 背光源装置以及具备该背光源装置的显示装置
CN101852945A (zh) * 2009-04-01 2010-10-06 乐金显示有限公司 包括led光源的液晶显示设备
CN202361184U (zh) * 2011-11-08 2012-08-01 深圳市嘉泰宏实业有限公司 改良的led背光源结构
CN104061488A (zh) * 2013-03-18 2014-09-24 群创光电股份有限公司 背光模块及显示装置
CN203240400U (zh) * 2013-03-28 2013-10-16 深圳市华星光电技术有限公司 一种背光模组及使用该背光模组的液晶显示装置
CN204403943U (zh) * 2015-01-27 2015-06-17 深圳市南极光电子科技有限公司 一种扩散膜头部附黑胶的背光源
CN105090798A (zh) * 2015-08-11 2015-11-25 京东方光科技有限公司 灯条、背光模组及其组装方法、显示装置

Also Published As

Publication number Publication date
CN105090798A (zh) 2015-11-25
US20170199318A1 (en) 2017-07-13

Similar Documents

Publication Publication Date Title
CN108957855B (zh) 显示装置
US9036111B2 (en) Liquid crystal display module
WO2017024756A1 (zh) 灯条、背光模组及其组装方法、显示装置
US20150301266A1 (en) Lighting device and display device
US20190129229A1 (en) Narrow frame display panel and display device
WO2016161663A1 (zh) 显示装置及其背光模组
WO2016176929A1 (zh) 背光模块及液晶显示器
JP6412721B2 (ja) 液晶表示装置
CN102955291A (zh) 显示装置
JP2009301912A (ja) バックライトユニット及び液晶表示装置
GB2546678A (en) Backlight module and display
WO2016101372A1 (zh) 液晶面板与背光模组定位胶结构及显示器
CN105759503A (zh) 背光模组及其组装方法
US20160091659A1 (en) Backlight, liquid crystal module and display device
JP5646744B2 (ja) 表示モジュール及び該モジュールを備えた表示装置
CN113625488A (zh) 背光模组及显示装置
KR101713947B1 (ko) 평판표시장치용 차광테이프 및 그의 부착방법
KR101966863B1 (ko) 표시장치 및 그 제조방법
CN105511163A (zh) 背光模组及显示屏
TWI465810B (zh) 顯示裝置及其背光模組
US9720273B2 (en) Display device having functional panel
TWI470323B (zh) 顯示裝置及其背光模組
US11644615B2 (en) Backlight unit including a position limiting and fixing structure and display assembly including the same
WO2018196292A1 (zh) 背光结构、显示装置
TWI448787B (zh) 背光模組

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 15108170

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 16834384

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16834384

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 16834384

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205N DATED 17/04/2018)

122 Ep: pct application non-entry in european phase

Ref document number: 16834384

Country of ref document: EP

Kind code of ref document: A1