WO2020019558A1 - 背光模组和显示装置 - Google Patents

背光模组和显示装置 Download PDF

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Publication number
WO2020019558A1
WO2020019558A1 PCT/CN2018/113308 CN2018113308W WO2020019558A1 WO 2020019558 A1 WO2020019558 A1 WO 2020019558A1 CN 2018113308 W CN2018113308 W CN 2018113308W WO 2020019558 A1 WO2020019558 A1 WO 2020019558A1
Authority
WO
WIPO (PCT)
Prior art keywords
backlight module
conductive film
light guide
guide plate
contact
Prior art date
Application number
PCT/CN2018/113308
Other languages
English (en)
French (fr)
Inventor
周革革
Original Assignee
武汉华星光电技术有限公司
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 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US16/308,934 priority Critical patent/US20210223466A1/en
Publication of WO2020019558A1 publication Critical patent/WO2020019558A1/zh

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Classifications

    • 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
    • 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
    • G02B6/0093—Means for protecting 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
    • G02F1/133314—Back frames
    • 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
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02B6/24—Coupling light guides
    • G02B6/42—Coupling light guides with opto-electronic elements
    • G02B6/4201—Packages, e.g. shape, construction, internal or external details
    • G02B6/4274—Electrical aspects
    • G02B6/4275—Protection against electrostatic discharge [ESD]
    • 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
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/13332—Front 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13458—Terminal pads
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
    • G02B2207/121—Antistatic or EM shielding 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, 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
    • G02B6/0081—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
    • 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
    • G02F1/133612—Electrical details
    • 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
    • G02F2202/22—Antistatic materials or arrangements

Definitions

  • the present application relates to the field of display technology, and in particular, to a backlight module and a display device using the backlight module.
  • liquid crystal display devices have been widely used as display components of electronic devices in various electronic products. Consumers have increasingly higher requirements for the use environment of devices, which requires improving the antistatic ability of display devices; and backlight modules It is an important part of the liquid crystal display device, and its requirements for antistatic ability are getting higher and higher.
  • FIG. 1 shows a conventional small-sized liquid crystal backlight module 10.
  • the backlight module 10 includes a light guide plate 11, a frame 12 disposed around the light guide plate 11, a light source flexible circuit board 13, a light source 16, and a light-shielding tape 14.
  • the optical film 15 is fixed on the frame body 12 by the light-shielding tape 14, and the light-shielding tape 14 can also be used to shield the backlight module 10.
  • the backlight module structure shown in FIG. 1 is prone to weak antistatic problems, which causes the device to be abnormal.
  • At least one conductive film is provided to improve the antistatic ability of the backlight module and the display device.
  • the present application provides a backlight module, which includes a reflective sheet, a light guide plate located above the reflective sheet and in contact with a top surface of the reflective sheet, and a light source assembly disposed on one side of the light guide plate An optical film group disposed on the light guide plate, and a frame body disposed around the light guide plate; wherein the backlight module further includes at least one conductive film; and wherein the conductive The film is disposed at at least one of the following positions: (1) the conductive film is attached to the reflection sheet so that one surface of the reflection sheet is in contact with the light guide plate and the other surface is in contact with the light guide plate; The conductive film is in contact; or, (2) the conductive film is disposed between the frame and the reflection sheet; (3) the conductive film is disposed on the optical film group and extends to and The frame is in contact.
  • the present application also provides a backlight module including a reflective sheet, a light guide plate located above the reflective sheet and in contact with a top surface of the reflective sheet, a light source component disposed on one side of the light guide plate, and a set A frame around the light guide plate; wherein the backlight module further includes at least one conductive film.
  • the frame body carries the reflection sheet; light emitted by the light source assembly can enter the light guide plate from one side of the light guide plate, and diffuse into the light guide plate after being diffused into the light guide plate.
  • the uniform plane light is emitted from the top surface of the light guide plate; the reflection sheet is located below the light guide plate and abuts on the bottom surface of the light guide plate, and can reflect light leaking from the bottom of the light guide plate Back to the light guide.
  • the conductive film is attached to the reflective sheet such that one surface of the reflective sheet is in contact with the light guide plate and the other surface is in contact with the conductive film.
  • the conductive film is disposed between the frame and the reflection sheet.
  • the reflective sheet and the frame are connected by an adhesive material, and the adhesive material forms the conductive film.
  • the backlight module further includes an optical film group, and the optical film group is in contact with the light guide plate.
  • the conductive film is disposed on the optical film group and extends to contact the frame.
  • the backlight module further includes a light-shielding adhesive layer, the light-shielding adhesive layer is disposed on the optical film group and extends to contact the frame, and the light-shielding adhesive layer is formed.
  • the conductive diaphragm is a light-shielding adhesive layer, the light-shielding adhesive layer is disposed on the optical film group and extends to contact the frame, and the light-shielding adhesive layer is formed.
  • the conductive film is made of a conductive adhesive material.
  • the present application also provides a display device including any one of the backlight modules described above.
  • the backlight module described in this application further includes other components that should be included in a conventional backlight module.
  • the selection of these conventional components does not affect the improvement of the antistatic ability of the backlight module and the display device.
  • a conductive film is provided under the reflective sheet, or a conductive material is used to form an adhesive material in the backlight module as the conductive film, so as to improve the resistance of the backlight module and the display device. Electrostatic capacity.
  • FIG. 1 is a schematic structural diagram of a conventional backlight module
  • FIG. 2 is a schematic structural diagram of a backlight module according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a backlight module according to another embodiment of the present invention.
  • FIG. 4 is a schematic structural diagram of a backlight module according to another embodiment of the present invention.
  • FIG. 5 is a schematic structural diagram of a display device according to an embodiment of the present invention.
  • the first feature "above” or “below” the second feature may include direct contact between the first and second features, and may also include that the first and second features are not in direct contact but Contact through additional features between them.
  • the first feature is “above”, “above”, and “above” the second feature, including that the first feature is directly above and obliquely above the second feature, or merely indicates that the first feature is higher in level than the second feature.
  • the first feature is “below”, “below”, and “below” of the second feature, including the fact that the first feature is directly below and obliquely below the second feature, or merely indicates that the first feature is less horizontal than the second feature.
  • Embodiment 1 Backlight module
  • a backlight module 200 is provided, and the structure of the backlight module 200 is shown in FIG. 2.
  • the backlight module 200 includes a reflection sheet 210, a light guide plate 220, and a frame 230 disposed around the light guide plate 220.
  • the backlight module 300 described in this embodiment has some common structures of backlight modules known in the art.
  • the backlight module 200 according to this embodiment is described in detail below with reference to FIG. 2.
  • the backlight module 200 includes a reflective sheet 210, a light guide plate 220 disposed on the reflective sheet, an optical film group 240 disposed on the light guide plate 220, and a frame 230.
  • the frame body 230 includes a bottom plate 231 and a side plate 232.
  • the frame body 230 has a receiving space for receiving a backlight source 250 and a circuit board 251 connected to the backlight source 250.
  • the backlight 250 is an element known in the art and conventional for providing a light source for a display panel, such as but not limited to an LED.
  • the backlight module 200 further includes a conductive film 260.
  • the conductive film 260 is disposed between the bottom plate 231 of the frame 230 and the reflection sheet 210. Meanwhile, the conductive film sheet 260 contacts the reflection sheet 210.
  • the backlight module 200 further includes a light-shielding adhesive layer 270.
  • the light-shielding adhesive layer 270 is disposed on the optical film group 240 to prevent light leakage of the backlight module 200 and is used to fix the backlight module 200 and a display panel described later in detail to form A display device.
  • the backlight module 200 further includes a fixing material.
  • a first adhesive 281 for fixing the frame 230 and the reflection sheet 210 is shown in FIG. 2.
  • the first adhesive material 281 is disposed between the side plate 232 of the frame body 230 and the reflection sheet 210.
  • the backlight module 200 further includes a second adhesive material 282 for fixing the circuit board 251 with the frame 230 and the light guide plate 220.
  • the first adhesive material 281 and the second adhesive material 282 may be, for example, double-sided adhesive.
  • Embodiment 2 Backlight module
  • a backlight module 300 is provided in this embodiment, and the structure of the backlight module 300 is shown in FIG. 3. As shown in FIG. 3, the backlight module 300 includes a reflection sheet 310, a light guide plate 320, and a frame 330 disposed around the light guide plate 320. Those skilled in the art can understand that the backlight module 300 described in this embodiment has some common structures of backlight modules known in the art.
  • the backlight module 300 according to this embodiment is described in detail below with reference to FIG. 3.
  • the backlight module 300 has a similar structure to the backlight module 200 in the first embodiment.
  • the backlight module 300 includes a reflective sheet 310, a light guide plate 320 disposed on the reflective sheet, an optical film group 340 disposed on the light guide plate 320, and a frame 330.
  • the frame body 330 includes a bottom plate 331 and a side plate 332.
  • the frame 330 has a receiving space for receiving a backlight 350 and a circuit board 351 connected to the backlight 350.
  • the backlight 350 is an element known in the art and conventional for providing a light source for a display panel, such as but not limited to an LED.
  • the backlight module 300 further includes a light-shielding adhesive layer 370.
  • the light-shielding adhesive layer 370 is disposed on the optical film group 340 to avoid light leakage of the backlight module 300 and is used to fix the backlight module 300 and a display panel described later in detail to form A display device.
  • the light-shielding adhesive layer 370 is made of any known suitable conductive material, so that the light-shielding adhesive layer 370 functions as a conductive film. That is, in this embodiment, the light-shielding adhesive layer 370 is made of a conductive material to perform the same function as the conductive film 260 described in the first embodiment.
  • the backlight module 300 further includes a fixing material.
  • a first adhesive material 381 for fixing the frame 330 and the reflection sheet 310 is shown in FIG. 3.
  • the first adhesive material 381 is disposed between the side plate 332 of the frame body 330 and the reflection sheet 310.
  • the backlight module 300 further includes a second glue 382 for fixing the circuit board 351, the frame 330 and the light guide plate 320.
  • the first adhesive material 381 and the second adhesive material 382 may be, for example, double-sided adhesive.
  • a backlight module 400 is provided in this embodiment, and the structure of the backlight module 400 is shown in FIG. 4. As shown in FIG. 4, the backlight module 400 includes a reflective sheet 410, a light guide plate 420, and a frame 430 disposed around the light guide plate 420. Those skilled in the art can understand that the backlight module 400 described in this embodiment has some common structures of backlight modules known in the art.
  • the backlight module 400 according to this embodiment is described in detail below with reference to FIG. 4.
  • the backlight module 400 has a similar structure to the backlight module 200 in the first embodiment.
  • the backlight module 400 includes a reflection sheet 410, a light guide plate 420 disposed on the reflection sheet, an optical film group 440 disposed on the light guide plate 420, and a frame 430.
  • the frame 430 includes a bottom plate 431 and a side plate 432.
  • the frame 430 has a receiving space for receiving a backlight 450 and a circuit board 451 connected to the backlight 450.
  • the backlight 450 is an element known in the art and conventional for providing a light source for a display panel, such as but not limited to an LED.
  • the backlight module 400 further includes a light-shielding adhesive layer 470.
  • the light-shielding adhesive layer 470 is disposed on the optical film group 440 to avoid light leakage of the backlight module 400 and is used to fix the backlight module 400 and a display panel described later in detail to form A display device.
  • the backlight module 400 further includes an adhesive material for fixing: 1 a first adhesive material 481 for fixing the frame 430 and the reflection sheet 410.
  • the first adhesive material 481 is disposed between the side plate 432 of the frame body 430 and the reflection sheet 410, and the first adhesive material 481 is formed by It is made of any known suitable conductive material, so that the first adhesive material 481 acts as a conductive film. That is, in this embodiment, the first adhesive material 481 is made of a conductive material, so as to perform the same function as the conductive film 260 described in the first embodiment.
  • the backlight module 400 further includes a second adhesive material 482 for fixing the circuit board 451, the frame body 430, and the light guide plate 420.
  • the second adhesive material 482 may be, for example, a double-sided adhesive.
  • Embodiment 4 Display device
  • a display device 500 is provided.
  • the display device 500 includes the backlight module 200 described in the first embodiment, and a display panel 510 attached to the backlight module 200.
  • the display panel 510 is adhered through the light-shielding adhesive layer 270 of the backlight module 200.
  • the backlight module 300 described in Embodiment 2 and the backlight module 400 described in Embodiment 3 can also be bonded to a display panel 510 to form a display device. Even in a case where the light-shielding adhesive layer 370 of the backlight module 300 as shown in FIG. 2 is made of a conductive material, the display panel and the backlight module can be attached.
  • the conductive adhesive material may be a material known in the art that has both conductivity and viscosity, such as glue containing conductive particles or an aqueous conductive gel.

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Abstract

一种背光模组（200）及一显示装置（500），背光模组（200）包括一反射片（210）、一导光板（220）和设置于导光板（220）周围的框体（230），其中，背光模组（200）还包括至少一导电膜片（260）。

Description

背光模组和显示装置 技术领域
本申请涉及显示技术领域，特别涉及一种背光模组及应用该背光模组的显示装置。
 背景技术
目前，液晶显示装置作为电子设备的显示部件已经广泛的应用于各种电子产品中，消费者对设备的使用环境要求越来越高，这就需要提高显示装置的抗静电能力；而背光模组则是液晶显示装置中的一个重要部件，其抗静电能力的要求越来越高。
请参见图1，图1所示的是一现有的小尺寸液晶背光模组10。如图1所示的，所述背光模组10包括：一导光板11、设置于所述导光板11周围的框体12、光源柔性电路板13、光源16以及遮光胶带14。其中，光学膜片15通过所述遮光胶带14固定在所述框体12上，并且所述遮光胶带14还可以用于对所述背光模组10进行遮光。
 技术问题
随着设备的抗静电能力要求提升，图1所示的背光模组的架构容易出现抗静电弱的问题，导致设备异常。
因此，需要一种新的背光模组结构，以增强所述背光模组的抗静电性，并解决目前存在的技术问题。
 技术解决方案
在根据本申请所述的背光模组中，通过设置至少一导电膜片，以提高所述背光模组及显示装置的抗静电能力。
为了达到上述目的，本申请提供一种背光模组，包括一反射片、一位于该反射片上方并与该反射片的顶面相接触的导光板、一配置于所述导光板一侧的光源组件、一设置于所述导光板上的一光学膜片组，以及一设置于所述导光板周围的框体；其中，所述背光模组还包括至少一导电膜片；并且其中，所述导电膜片设置于以下位置中的至少一个位置上：(1) 所述导电膜片贴附于所述反射片，使所述反射片的一表面与所述导光板接触而另一表面与所述导电膜片接触；或者，(2) 所述导电膜片设置于所述框体与所述反射片之间；(3) 所述导电膜片设置于所述光学膜片组上并延伸至与所述框体接触。
本申请还提供一种背光模组，包括一反射片、一位于该反射片上方并与该反射片的顶面相接触的导光板、一配置于所述导光板一侧的光源组件、以及一设置于所述导光板周围的框体；其中，所述背光模组还包括至少一导电膜片。
其中，所述框体承载所述反射片；由所述光源组件发射出来的光线能够自所述导光板的其中一侧面进入所述导光板中，并经过所述导光板的底面扩散之后转化为均匀的平面光线，从所述导光板的顶面射出；所述反射片位于所述导光板的下方并贴靠在所述导光板的底面上，能够将自所述导光板底部漏出的光线反射回所述导光板中。
在一实施例中，所述导电膜片贴附于所述反射片，使所述反射片的一表面与所述导光板接触而另一表面与所述导电膜片接触。
在一实施例中，所述导电膜片设置于所述框体与所述反射片之间。
在一实施例中，所述反射片与所述框体之间通过一胶材连接，所述胶材形成所述导电膜片。
在一实施例中，所述背光模组还包括一光学膜片组，所述光学膜片组与所述导光板接触。
在一实施例中，所述导电膜片设置于所述光学膜片组上并延伸至与所述框体接触。
在一实施例中，所述背光模组还包括一遮光胶层，所述遮光胶层设置于所述光学膜片组上并延伸至与所述框体接触，并且，所述遮光胶层形成所述导电膜片。
在一实施例中，所述导电膜片由导电胶材制成。
本申请还提供一种显示装置，包含上述任意一种背光模组。
本领域技术人员可以理解的是，本申请所述的背光模组还包括常规背光模组所应当包括的其他部件。然而这些常规部件的选择并不影响提高所述背光模组及显示装置的抗静电能力。
 有益效果
在本申请中，通过在所述反射片的下方设置导电膜片，或者以导电材料形成背光模组中的胶材作为所述导电膜片，以实现提高所述背光模组及显示装置的抗静电能力。
 附图说明
为了更清楚地说明本申请实施例中的技术方案，下面将对实施例描述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申请的一些实施例，对于本领域技术人员来讲，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他的附图。
图1是现有的背光模组的结构示意图；
图2是本发明一实施例中所述背光模组的结构示意图；
图3是本发明另一实施例中所述背光模组的结构示意图；
图4是本发明另一实施例中所述背光模组的结构示意图；
图5是本发明一实施例中所述显示装置的结构示意图。
 本发明的实施方式
下面详细描述本发明的实施方式，所述实施方式的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施方式是示例性的，仅用于解释本发明，而不能理解为对本发明的限制。
除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
实施例1. 背光模组
在本实施例中提供一种背光模组200，所述背光模组200的结构请参见图2。如图2所示的，所述背光模组200包括一反射片210、一导光板220和设置于所述导光板220周围的框体230。本领域技术人员可以理解的是，本实施例中所述背光模组300具有一些本领域已知的背光模组的通用结构。
以下结合图2详细描述本实施例所述的背光模组200。
所述背光模组200包括一反射片210、设置于所述反射片上的导光板220、设置于所述导光板220上的光学膜片组240以及框体230。如图2所示的，所述框体230包括底板231和侧板232。如图2所示的，所述框体230具有一容纳空间，用于容纳一背光源250以及与所述背光源250连接的电路板251。所述背光源250为本领域已知且常规的为显示面板提供光源的元件，例如但不限于LED。
如图2所示的，在本实施例中，所述背光模组200还包括一导电膜片260，所述导电膜片260设置于所述框体230的底板231与所述反射片210之间，并且，所述导电膜片260接触所述反射片210。
当然，本领域技术人员可以理解的是，如图2所示的，所述背光模组200还包括一遮光胶层270。所述遮光胶层270设置于所述光学膜片组240上，以避免所述背光模组200的光线泄露，并用于将所述背光模组200与一后续详细描述的显示面板进行固定以形成一显示装置。
本领域技术人员可以理解的是，所述背光模组200还包括固定用的胶材。例如但不限于，如图2所示的，用于将所述框体230与所述反射片210进行固定的一第一胶材281，如图2所示的，在本实施例中，所述第一胶材281设置于所述框体230的侧板232与所述反射片210之间。进一步地，所述背光模组200还包括用于将所述电路板251与所述框体230及所述导光板220进行固定的一第二胶材282。所述第一胶材281与所述第二胶材282可以是例如双面胶。
实施例2. 背光模组
在本实施例中提供一种背光模组300，所述背光模组300的结构请参见图3。如图3所示的，所述背光模组300包括一反射片310、一导光板320和设置于所述导光板320周围的框体330。本领域技术人员可以理解的是，本实施例中所述背光模组300具有一些本领域已知的背光模组的通用结构。
以下结合图3详细描述本实施例所述的背光模组300。所述背光模组300与实施例1中的所述背光模组200具有相似的结构。
如图3所示的，所述背光模组300包括一反射片310、设置于所述反射片上的导光板320、设置于所述导光板320上的光学膜片组340以及框体330。如图3所示的，所述框体330包括底板331和侧板332。如图3所示的，所述框体330具有一容纳空间，用于容纳一背光源350以及与所述背光源350连接的电路板351。所述背光源350为本领域已知且常规的为显示面板提供光源的元件，例如但不限于LED。
如图3所示的，所述背光模组300还包括一遮光胶层370。所述遮光胶层370设置于所述光学膜片组340上，以避免所述背光模组300的光线泄露，并用于将所述背光模组300与一后续详细描述的显示面板进行固定以形成一显示装置。
在本实施例中，所述遮光胶层370由任何已知的适合的导电材料制成，使得所述遮光胶层370充当一导电膜片。也就是说，在本实施例中，所述遮光胶层370由导电材料制成，以起到与实施例1中所记载的导电膜片260相同的作用。
本领域技术人员可以理解的是，所述背光模组300还包括固定用的胶材。例如但不限于，如图3所示的，用于将所述框体330与所述反射片310进行固定的一第一胶材381，如图3所示的，在本实施例中，所述第一胶材381设置于所述框体330的侧板332与所述反射片310之间。进一步地，所述背光模组300还包括用于将所述电路板351与所述框体330及所述导光板320进行固定的一第二胶材382。所述第一胶材381与所述第二胶材382可以是例如双面胶。
实施例3. 背光模组
在本实施例中提供一种背光模组400，所述背光模组400的结构请参见图4。如图4所示的，所述背光模组400包括一反射片410、一导光板420和设置于所述导光板420周围的框体430。本领域技术人员可以理解的是，本实施例中所述背光模组400具有一些本领域已知的背光模组的通用结构。
以下结合图4详细描述本实施例所述的背光模组400。所述背光模组400与实施例1中的所述背光模组200具有相似的结构。
如图4所示的，所述背光模组400包括一反射片410、设置于所述反射片上的导光板420、设置于所述导光板420上的光学膜片组440以及框体430。如图4所示的，所述框体430包括底板431和侧板432。如图4所示的，所述框体430具有一容纳空间，用于容纳一背光源450以及与所述背光源450连接的电路板451。所述背光源450为本领域已知且常规的为显示面板提供光源的元件，例如但不限于LED。
如图4所示的，所述背光模组400还包括一遮光胶层470。所述遮光胶层470设置于所述光学膜片组440上，以避免所述背光模组400的光线泄露，并用于将所述背光模组400与一后续详细描述的显示面板进行固定以形成一显示装置。
如图4所示的，所述背光模组400还包括固定用的胶材：①用于将所述框体430与所述反射片410进行固定的一第一胶材481。如图4所示的，在本实施例中，所述第一胶材481设置于所述框体430的侧板432与所述反射片410之间，并且，所述第一胶材481由任何已知的适合的导电材料制成，使得所述第一胶材481充当一导电膜片。也就是说，在本实施例中，所述第一胶材481由导电材料制成，以起到与实施例1中所记载的导电膜片260相同的作用。
进一步地，如图4所示的，所述背光模组400还包括用于将所述电路板451与所述框体430及所述导光板420进行固定的一第二胶材482。所述第二胶材482可以是例如双面胶。
实施例4. 显示装置
在本实施例中，提供一种显示装置500，所述显示装置500包含实施例1中所述的背光模组200，以及与所述背光模组200相贴合的显示面板510。所述显示面板510通过所述背光模组200的所述遮光胶层270相贴合。
本领域技术人员同样可以理解的是，实施例2中所述的背光模组300以及实施例3中所述的背光模组400也同样可以与一显示面板510贴合，以形成一显示装置。即使在如图2中所述的背光模组300的所述遮光胶层370由导电材料制成的情况下，也可以实现显示面板与背光模组的贴合。
所述导电胶材可以是本领域已知的同时具有导电及粘性的材料，例如含有导电粒子的胶水或者水性导电凝胶等。
 工业实用性
本申请的主题可以在工业中制造和使用，具备工业实用性。
本申请已由上述相关实施例加以描述，然而上述实施例仅为实施本申请的范例。必需指出的是，已公开的实施例并未限制本申请的范围。相反地，包含于权利要求书的精神及范围的修改及均等设置均包括于本申请的范围内。

Claims (17)

  1. 一种背光模组，包括一反射片、一位于该反射片上方并与该反射片的顶面相接触的导光板、一配置于所述导光板一侧的光源组件、一设置于所述导光板上的一光学膜片组，以及一设置于所述导光板周围的框体；其中，所述背光模组还包括至少一导电膜片；并且其中，
    所述导电膜片设置于以下位置中的至少一个位置上：
    (1) 所述导电膜片贴附于所述反射片，使所述反射片的一表面与所述导光板接触而另一表面与所述导电膜片接触；或者，
    (2) 所述导电膜片设置于所述框体与所述反射片之间；
    (3) 所述导电膜片设置于所述光学膜片组上并延伸至与所述框体接触。
  2. 如权利要求1所述的背光模组，其中，所述导电膜片由导电胶材制成。
  3. 一种背光模组，包括一反射片、一位于该反射片上方并与该反射片的顶面相接触的导光板、一配置于所述导光板一侧的光源组件、以及一设置于所述导光板周围的框体；其中，所述背光模组还包括至少一导电膜片。
  4. 如权利要求3所述的背光模组，其中，所述导电膜片贴附于所述反射片，使所述反射片的一表面与所述导光板接触而另一表面与所述导电膜片接触。
  5. 如权利要求3所述的背光模组，其中，所述导电膜片设置于所述框体与所述反射片之间。
  6. 如权利要求5所述的背光模组，其中，所述反射片与所述框体之间通过一胶材连接，所述胶材形成所述导电膜片。
  7. 如权利要求3所述的背光模组，其中，所述背光模组还包括一光学膜片组，所述光学膜片组与所述导光板接触。
  8. 如权利要求7所述的背光模组，其中，所述导电膜片设置于所述光学膜片组上并延伸至与所述框体接触。
  9. 如权利要求8所述的背光模组，其中，所述背光模组还包括一遮光胶层，所述遮光胶层设置于所述光学膜片组上并延伸至与所述框体接触，并且，所述遮光胶层形成所述导电膜片。
  10. 如权利要求1所述的背光模组，其中，所述导电膜片由导电胶材制成。
  11. 一种显示装置，包含权利要求3所述的背光模组。
  12. 如权利要求11所述的显示装置，其中，所述导电膜片贴附于所述反射片，使所述反射片的一表面与所述导光板接触而另一表面与所述导电膜片接触。
  13. 如权利要求11所述的显示装置，其中，所述导电膜片设置于所述框体与所述反射片之间。
  14. 如权利要求13所述的显示装置，其中，所述反射片与所述框体之间通过一胶材连接，所述胶材形成所述导电膜片。
  15. 如权利要求11所述的显示装置，其中，所述背光模组还包括一光学膜片组，所述光学膜片组与所述导光板接触。
  16. 如权利要求15所述的显示装置，其中，所述导电膜片设置于所述光学膜片组上并延伸至与所述框体接触。
  17. 如权利要求16所述的显示装置，其中，所述背光模组还包括一遮光胶层，所述遮光胶层设置于所述光学膜片组上并延伸至与所述框体接触，并且，所述遮光胶层形成所述导电膜片。
PCT/CN2018/113308 2018-07-26 2018-11-01 背光模组和显示装置 WO2020019558A1 (zh)

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