WO2017190380A1 - 无胶框液晶显示装置及其组装方法 - Google Patents

无胶框液晶显示装置及其组装方法 Download PDF

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Publication number
WO2017190380A1
WO2017190380A1 PCT/CN2016/083068 CN2016083068W WO2017190380A1 WO 2017190380 A1 WO2017190380 A1 WO 2017190380A1 CN 2016083068 W CN2016083068 W CN 2016083068W WO 2017190380 A1 WO2017190380 A1 WO 2017190380A1
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WIPO (PCT)
Prior art keywords
liquid crystal
crystal display
display panel
guide plate
light guide
Prior art date
Application number
PCT/CN2016/083068
Other languages
English (en)
French (fr)
Inventor
曾杰
周革革
陈倩
Original Assignee
武汉华星光电技术有限公司
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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 US15/111,823 priority Critical patent/US10048435B2/en
Publication of WO2017190380A1 publication Critical patent/WO2017190380A1/zh

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    • 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
    • G02B6/0051—Diffusing 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
    • G02B6/0033—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
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement 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
    • G02B6/0033—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
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
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    • 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
    • G02B6/009—Positioning aspects of the light source 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
    • G02B6/0001—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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133605—Direct backlight including specially adapted reflectors
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G—PHYSICS
    • 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
    • G02F1/133311—Environmental protection, e.g. against dust or humidity
    • 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
    • G02F1/133325—Assembling processes
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • 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
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a frameless liquid crystal display device and an assembly method thereof.
  • LCD Liquid crystal display
  • PDAs personal digital assistants
  • digital cameras computer screens or laptop screens, etc.
  • liquid crystal displays which include a liquid crystal panel and a backlight module.
  • the working principle of the liquid crystal panel is to apply a driving voltage on a Thin Film Transistor Array Substrate (TFT Array Substrate) and a Color Filter (CF) to control the rotation direction of liquid crystal molecules between the two substrates.
  • TFT Array Substrate Thin Film Transistor Array Substrate
  • CF Color Filter
  • the backlight module is divided into a side-in type backlight module and a direct-type backlight module according to different incident positions of the light source.
  • a light source such as a cathode fluorescent lamp (CCFL) or a light emitting diode (LED) is disposed behind the liquid crystal panel, and a surface light source is directly formed and supplied to the liquid crystal panel.
  • the side-lit backlight module has a light bar disposed on the side of the liquid crystal panel as a backlight.
  • FIG. 1 is a schematic structural diagram of a conventional liquid crystal display device, including: a backlight module 1', a first double-sided tape 110' disposed on an upper surface edge of the backlight module 1', and disposed in the first pair a liquid crystal display panel 2' on the upper surface of the top surface 11', a protective cover 3' disposed on the upper surface of the liquid crystal display panel 2', and a backlight module 1' and a liquid crystal display panel disposed on the lower surface of the protective cover 3' 2' terminal border 4'.
  • FIG. 2 is a schematic structural diagram of a backlight module of the liquid crystal display device shown in FIG. 1 , including: a light guide plate 11 ′, a backlight 12 ′ disposed on a side of the light guide plate 11 ′, and being disposed away from the backlight 12 ′ a side of the light guide plate 11' and a plastic frame 13' disposed on a side of the light guide plate 11' away from the backlight 12', and a second double-sided tape 120' disposed on a lower surface of the plastic frame 13', through the second
  • the double-sided tape 120' is attached to the reflective sheet 14' under the plastic frame 13', a third double-sided tape 130' disposed on the surface of the backlight 12' and the plastic frame 13', a backlight flexible circuit board 16' disposed on the upper surface of the third double-sided tape 130', and a light guide plate 11'
  • the optical film group 15' includes a diffusion sheet 151', a lower
  • the reflective sheet 14' is first attached to the lower surface of the plastic frame 13', and the light guide plate 11', the backlight 12', and the backlight flexible circuit are assembled in the area surrounded by the plastic frame 13'.
  • the board 14' and the optical film group 15' complete the manufacture of the backlight module 1', and then the first double-sided tape 110' is disposed on the upper surface of the backlight module 1' and is attached to the liquid crystal display panel 2', and finally
  • the combined backlight module 1' and the liquid crystal display panel 2' are placed in the terminal frame 4' and the protective cover 3' is attached to the upper surface of the liquid crystal display panel 2'. Due to the presence of the plastic frame 13' in the backlight module 1', the frame of the backlight module 1' is wider, which causes the frame of the liquid crystal display device to be further widened, which reduces the competitiveness of the product.
  • An object of the present invention is to provide a frameless liquid crystal display device with high assembly precision, reduced frame width of a liquid crystal display device, reduced product cost, and improved product competitiveness.
  • Another object of the present invention is to provide a method for assembling a frameless liquid crystal display device, which has high assembly precision, can reduce the frame width of the liquid crystal display device, reduce product cost, and improve the integration degree of the liquid crystal display panel, thereby realizing the liquid crystal display device.
  • the narrow border enhances product competitiveness.
  • the present invention firstly provides a frameless liquid crystal display device, comprising: a terminal frame, a reflection sheet disposed in the frame of the terminal, a light guide plate disposed on the reflection sheet, and a light guide plate corresponding to the light guide plate. a backlight disposed on the side, a liquid crystal display panel disposed on the light guide plate, and an optical die set disposed between the light guide plate and the liquid crystal display panel;
  • the liquid crystal display panel includes: an effective display area at the center; and a peripheral area located at the periphery of the effective display area;
  • a first double-sided tape surrounding the effective display area of the liquid crystal display panel is attached to the lower surface of the liquid crystal display panel, and the optical film set passes through the first double-sided tape and the lower surface of the liquid crystal display panel fit.
  • the optical die set includes an upper prism, a lower prism, and a diffusion sheet which are stacked in this order from top to bottom.
  • the size of the upper prism, the lower prism, and the diffusion sheet increases from small to large, and the size of the upper prism is larger than the size of the effective display area of the liquid crystal display panel, and the size of the diffusion sheet is smaller than or equal to the size of the lower surface of the liquid crystal display panel.
  • One side of the light guide plate inside the terminal frame is provided with a light source fixing groove, and the backlight is placed In the light source fixing groove.
  • the upper surface of the liquid crystal display panel is further covered with a protective cover.
  • the invention provides a method for assembling a glueless frame liquid crystal display device, comprising the following steps:
  • Step 1 Providing a terminal frame, a reflective sheet, a second double-sided tape, and a light guide plate, and bonding the second double-sided tape to the bottom surface of the inner frame of the terminal frame, and bonding the reflection sheet to the second double-sided tape In the terminal frame, and placing the light guide plate on the reflective sheet;
  • Step 2 providing a liquid crystal display panel, and a first double-sided tape
  • the liquid crystal display panel includes: an effective display area at the center; and a peripheral area located at the periphery of the effective display area;
  • Step 3 providing an optical film set, assembling the optical film set, the liquid crystal display panel, and the terminal frame provided with the reflective sheet and the light guide plate;
  • the optical film set is located between the light guide plate and the liquid crystal display panel, and is attached to the lower surface of the liquid crystal display panel by a first double-sided tape.
  • the optical die set includes an upper prism, a lower prism, and a diffusion sheet which are sequentially stacked from top to bottom;
  • the size of the upper prism, the lower prism, and the diffusion sheet increases from small to large, and the size of the upper prism is larger than the size of the effective display area of the liquid crystal display panel, and the size of the diffusion sheet is smaller than or equal to the lower surface of the liquid crystal display panel. Surface size.
  • the step 3 specifically includes:
  • Step 31 the upper prism is attached to the lower surface of the liquid crystal display panel through the first double-sided tape;
  • Step 32 the diffusion sheet and the lower prism are stacked on the light guide plate in this order from bottom to top;
  • Step 33 The liquid crystal display panel and the terminal frame are grouped such that the lower surface of the liquid crystal display panel is adhered to the upper surface of the light guide plate, so that the diffusion sheet and the lower prism placed on the light guide plate pass the first double The top coat is bonded to the lower surface of the liquid crystal display panel.
  • the step 3 specifically includes:
  • Step 31 the upper prism, the lower prism, and the diffusion sheet are sequentially attached to the lower surface of the liquid crystal display panel through the first double-sided tape from top to bottom;
  • Step 32 Pair the liquid crystal display panel and the terminal frame so that the lower surface of the liquid crystal display panel and the upper surface of the light guide plate are attached.
  • the step 1 further includes a light source disposed on one side of the light guide plate inside the terminal frame a step of fixing the slot and placing the backlight therein;
  • the step 3 further includes a step of covering the upper surface of the liquid crystal display panel with a protective cover.
  • the present invention also provides a frameless liquid crystal display device, comprising: a terminal frame, a reflection sheet disposed in the frame of the terminal, a light guide plate disposed on the reflection sheet, and a backlight disposed on a side of the light guide plate a liquid crystal display panel disposed on the light guide plate, and an optical die set disposed between the light guide plate and the liquid crystal display panel;
  • the liquid crystal display panel includes: an effective display area at the center; and a peripheral area located at the periphery of the effective display area;
  • a first double-sided tape surrounding the effective display area of the liquid crystal display panel is attached to the lower surface of the liquid crystal display panel, and the optical film set passes through the first double-sided tape and the lower surface of the liquid crystal display panel fit;
  • the optical die set includes an upper prism, a lower prism, and a diffusion sheet which are sequentially stacked from top to bottom;
  • One side of the light guide plate inside the terminal frame is provided with a light source fixing groove, and the backlight is placed in the light source fixing groove.
  • the blank frameless liquid crystal display device provided by the present invention indicates that a first double-sided tape surrounding an effective display area is attached under the liquid crystal display panel, and the optical film set is attached to the first double-sided tape.
  • the reflection sheet and the light guide plate are sequentially disposed inside the terminal frame, and finally the liquid crystal display panel with the optical film group and the terminal frame with the reflection sheet and the light guide plate are combined, thereby eliminating the backlight plastic frame and reducing Cost, effectively reducing the frame width of the liquid crystal display device, realizing a narrow bezel of the liquid crystal display device, enhancing product competitiveness, and assembling the backlight module together with the liquid crystal display panel and the terminal frame, thereby improving the integration degree of the liquid crystal display panel and improving assembly Precision.
  • the assembling method of the plastic frameless liquid crystal display device provided by the invention can reduce the cost, reduce the frame width of the liquid crystal display device, realize the narrow frame of the liquid crystal display device, enhance the competitiveness of the product, improve the integration degree of the liquid crystal display panel, and improve the assembly. Precision.
  • FIG. 1 is a schematic structural view of a conventional liquid crystal display device
  • FIG. 2 is a schematic structural view of a backlight module of the liquid crystal display device shown in FIG. 1;
  • FIG. 3 is a schematic structural view of a frameless liquid crystal display device of the present invention.
  • FIG. 4 is a flow chart showing a method of assembling a liquid crystal display device of the present invention.
  • FIG. 5 and FIG. 6 are schematic diagrams showing the third step of the first embodiment of the method for assembling the frameless liquid crystal display device of the present invention.
  • FIG. 7 and FIG. 8 are schematic diagrams showing the third step of the second embodiment of the method for assembling the frameless liquid crystal display device of the present invention.
  • FIG. 9 and FIG. 10 are schematic diagrams showing the third step of the third embodiment of the method for assembling the frameless liquid crystal display device of the present invention.
  • the frameless liquid crystal display device of the present invention comprises: a terminal frame 4, a reflection sheet 14 disposed in the terminal frame 4, a light guide plate 11 disposed on the reflection sheet 14, and a corresponding place a backlight 40 disposed on one side of the light guide plate 11, a liquid crystal display panel 2 disposed on the light guide plate 11, and an optical die set 15 disposed between the light guide plate 11 and the liquid crystal display panel 2;
  • the liquid crystal display panel 2 includes: an effective display area 21 located at the center, and a peripheral area 22 located at the periphery of the effective display area 21;
  • a first double-sided tape 110 surrounding the effective display area 21 of the liquid crystal display panel 2 is attached to the lower surface of the liquid crystal display panel 2, and the optical film set 15 passes through the first double-sided tape 110 and the The lower surface of the liquid crystal display panel 2 is attached.
  • the material of the terminal frame 4 is a material with high hardness, preferably a metal or a plastic material
  • the first double-sided tape 110 is a light-shielding double-sided tape.
  • the optical module 15 includes an upper prism 153, a lower prism 152, and a diffusion sheet 151 which are sequentially stacked from top to bottom;
  • the size of the upper prism 153, the lower prism 152, and the diffusion sheet 151 increases from small to large.
  • the upper prism 153, the lower prism 152, and the diffusion sheet 151 are all rectangular.
  • the first double-sided tape 110 is a mouth-shaped type. After the upper prism 153 is attached to the first double-sided tape 110, the first double-sided tape 110 still has a portion for the lower prism 152 and the diffusion sheet 151 to be attached.
  • the first double-sided tape 110 After the lower prism 152 is attached to the first double-sided tape 110, the first double-sided tape 110 still has a portion for the diffusion sheet 151 to be attached, and after the diffusion sheet 151 is attached to the first double-sided tape 110, The optical film group 15 composed of the upper prism 153, the lower prism 152, and the diffusion sheet 151 is completed.
  • the first double-sided tape 110 is disposed in the peripheral region 22 on the liquid crystal display panel 2, and the upper prism is completed while the bonding of the upper prism 153, the lower prism 152, and the diffusion sheet 151 is completed. 153.
  • the positions of the lower prism 152 and the diffusion sheet 151 are positioned to effectively improve the assembly accuracy of the liquid crystal display device.
  • a light source fixing groove 41 is further disposed on one side of the light guide plate 11 inside the terminal frame 4, and the backlight 40 is placed in the light source fixing groove 41, thereby further reducing the width of the terminal frame 4 and the frame of the liquid crystal display device. width.
  • the side of the liquid crystal display panel 2 remote from the terminal frame 4 also covers the protective cover 3 .
  • the above-mentioned frameless liquid crystal display device uses the terminal frame 4 to position and fix the backlight 40, the light guide plate 11, and the reflection sheet 14, and passes through the first pair disposed on the peripheral region 22 of the liquid crystal display panel 2.
  • the surface adhesive 110 has the positioning and fixing of the optical film set 15 , so that there is no need to provide a plastic frame structure for positioning and fixing in the conventional technology on the side of the terminal frame 4 , which can save the process and cost of manufacturing the plastic frame, and By setting the plastic frame structure, the width of the terminal frame can be effectively reduced, thereby reducing the width of the frame of the liquid crystal display device, and the narrow frame of the liquid crystal display device can be realized, thereby enhancing the competitiveness of the product.
  • the present invention further provides a method for assembling a frameless liquid crystal display device, comprising the following steps:
  • Step 1 providing a terminal frame 4, a reflective sheet 14, a second double-sided tape 120 and a light guide plate 11, and bonding the second double-sided tape 120 to the bottom surface of the inner frame 4, using the second double-sided tape 120, the reflective sheet 14 is attached to the terminal frame 4, and the light guide plate 11 is placed on the reflective sheet 14;
  • the step 4 further includes a step of disposing a light source fixing groove 41 on one side of the light guide plate 11 inside the terminal frame 4 and placing the backlight 40 therein.
  • the second double-sided tape 120 is a mouth-shaped glue.
  • the material of the terminal frame 4 is a material with high hardness, and the material is preferably metal or plastic.
  • Step 2 providing a liquid crystal display panel 2, and a first double-sided tape 110;
  • the liquid crystal display panel 2 includes: an effective display area 21 located at the center, and a peripheral area 22 located at the periphery of the effective display area 21;
  • the first double-sided tape 110 is attached to the lower surface of the liquid crystal display panel 2, the first double-sided tape 110 surrounds the effective display area 21 of the liquid crystal display panel 2;
  • the first double-sided tape 110 is a light-shielding double-sided tape.
  • the effective display area 21 is used for positioning, and the first double-sided tape 110 is attached to the peripheral region 22 of the liquid crystal display panel 2, thereby ensuring the bonding precision and improving the assembly effect.
  • Step 3 providing an optical film set 15, assembling the optical film set 15, the liquid crystal display panel 2, and the terminal frame 4 provided with the reflective sheet 14 and the light guide plate 11;
  • the optical film group 15 is disposed between the light guide plate 11 and the liquid crystal display panel 2, and is attached to the lower surface of the liquid crystal display panel 2 by the first double-sided tape 110.
  • the optical module 15 includes an upper prism 153, a lower prism 152, and a diffusion sheet 151 which are sequentially stacked from top to bottom;
  • the size of the upper prism 153, the lower prism 152, and the diffusion sheet 151 increases from small to large.
  • the upper prism 153, the lower prism 152, and the diffusion sheet 151 are all rectangular.
  • the first double-sided tape 110 is a mouth-shaped type. After the upper prism 153 is attached to the first double-sided tape 110, the first double-sided tape 110 still has a portion for the lower prism 152 and the diffusion sheet 151 to be attached.
  • the first double-sided tape 110 After the lower prism 152 is attached to the first double-sided tape 110, the first double-sided tape 110 still has a portion for the diffusion sheet 151 to be attached, and after the diffusion sheet 151 is attached to the first double-sided tape 110, The optical film group 15 composed of the upper prism 153, the lower prism 152, and the diffusion sheet 151 is completed.
  • the first double-sided tape 110 is disposed in the peripheral region 22 of the liquid crystal display panel 2, and the upper prism 153, the lower prism 152, and the upper prism 153, the lower prism 152, and the like, while the bonding of the upper prism 153, the lower prism 152, and the diffusion sheet 151 is completed
  • the position of the diffusion sheet 151 is positioned to effectively improve the assembly accuracy of the liquid crystal display device.
  • the step 3 specifically includes:
  • Step 31 the upper prism 153, the lower prism 152, and the diffusion sheet 151 are sequentially attached to the lower surface of the liquid crystal display panel 2 through the first double-sided tape 110 from top to bottom;
  • Step 32 The liquid crystal display panel 2 and the terminal frame 4 are paired such that the lower surface of the liquid crystal display panel 2 is adhered to the upper surface of the light guide plate 11.
  • the step 3 specifically includes:
  • Step 31 the upper prism 153 is attached to the lower surface of the liquid crystal display panel 2 through the first double-sided tape 110;
  • Step 32 the diffusion sheet 151, and the lower prism 152 are sequentially stacked on the light guide plate 11 from bottom to top;
  • Step 33 the liquid crystal display panel 2 and the terminal frame 4 are paired such that the lower surface of the liquid crystal display panel 2 is adhered to the upper surface of the light guide plate 11, so that the diffusion sheet 151 placed on the light guide plate 11 and The lower prism 152 is bonded to the lower surface of the liquid crystal display panel 2 through the first double-sided tape 110.
  • the step 3 specifically includes:
  • Step 31 the upper prism 153, and the lower prism 152 are sequentially attached to the lower surface of the liquid crystal display panel 2 through the first double-sided tape 110 from top to bottom;
  • Step 32 placing the diffusion sheet 151 on the light guide plate 11;
  • Step 33 The liquid crystal display panel 2 and the terminal frame 4 are paired such that the lower surface of the liquid crystal display panel 2 is adhered to the upper surface of the light guide plate 11, so that the diffusion sheet 151 placed on the light guide plate 11 passes through the first A double-sided tape 110 is bonded to the lower surface of the liquid crystal display panel 2.
  • the above-mentioned frameless liquid crystal display device uses the terminal frame 4 to position and fix the backlight 40, the light guide plate 11, and the reflection sheet 14, and passes through the first pair disposed on the peripheral region 22 of the liquid crystal display panel 2.
  • the surface adhesive 110 has the positioning and fixing of the optical film set 15 , so that there is no need to provide a plastic frame structure for positioning and fixing in the conventional technology on the side of the terminal frame 4 , which can save the process and cost of manufacturing the plastic frame, and By setting the plastic frame structure, the width of the terminal frame can be effectively reduced, thereby reducing the width of the frame of the liquid crystal display device, and the narrow frame of the liquid crystal display device can be realized, thereby enhancing the competitiveness of the product.
  • the blank frameless liquid crystal display device indicates that the first double-sided tape surrounding the effective display area is attached under the liquid crystal display panel, and the optical film set is attached to the first double-sided tape.
  • the reflective sheet and the light guide plate are sequentially disposed inside the terminal frame, and finally the liquid crystal display panel with the optical film group and the terminal frame with the reflective sheet and the light guide plate are combined, thereby eliminating the backlight plastic frame and reducing the cost.
  • the utility model can effectively reduce the width of the frame of the liquid crystal display device, realize the narrow frame of the liquid crystal display device, enhance the competitiveness of the product, and assemble the backlight module together with the liquid crystal display panel and the terminal frame, thereby improving the integration degree of the liquid crystal display panel and improving the assembly precision. .
  • the assembling method of the plastic frameless liquid crystal display device provided by the invention can reduce the cost, reduce the frame width of the liquid crystal display device, realize the narrow frame of the liquid crystal display device, enhance the competitiveness of the product, improve the integration degree of the liquid crystal display panel, and improve the assembly. Precision.

Abstract

一种无胶框液晶显示装置及其组装方法，通过在液晶显示面板(2)的下表面贴附包围有效显示区域(21)的第一双面胶(110)，并将光学膜片组(15)贴合于第一双面胶(110)上，并将反射片(14)与导光板(11)依次设置在终端边框(4)内部，最后将带有光学膜片组(15)的液晶显示面板(2)与带有反射片(14)与导光板(11)的终端边框(4)组合，能够省去背光胶框，减少成本，有效减少液晶显示装置的边框宽度，实现液晶显示装置的窄边框，提升产品竞争力，并且背光模组和液晶显示面板(2)及终端边框(4)一起组装，能够提高液晶显示面板的集成化程度，提升组装精度。

Description

无胶框液晶显示装置及其组装方法 技术领域
本发明涉及液晶显示技术领域，尤其涉及一种无胶框液晶显示装置及其组装方法。
背景技术
液晶显示装置(Liquid Crystal Display，LCD)具有机身薄、省电、无辐射等众多优点，得到了广泛的应用。如：液晶电视、移动电话、个人数字助理(PDA)、数字相机、计算机屏幕或笔记本电脑屏幕等，在平板显示领域中占主导地位。
现有市场上的液晶显示器大部分为背光型液晶显示器，其包括液晶面板及背光模组(Backlight Module)。液晶面板的工作原理是在薄膜晶体管阵列基板(Thin Film Transistor Array Substrate，TFT Array Substrate)与彩色滤光片基板(Color Filter，CF)上施加驱动电压来控制两基板之间液晶分子的旋转方向，以将背光模组的光线折射出来产生画面。
由于液晶显示面板本身不发光，需要借由背光模组提供的光源来正常显示影像，因此背光模组成为液晶显示器的关键组件之一。背光模组依照光源入射位置的不同分成侧入式背光模组与直下式背光模组两种。直下式背光模组是将发光光源例如阴极萤光灯管(Cold Cathode Fluorescent Lamp，CCFL)或发光二极管(Light Emitting Diode，LED)设置在液晶面板后方，直接形成面光源提供给液晶面板。而侧入式背光模组是将LED灯条(Light bar)设于液晶面板的侧后方作为背光源。
目前，窄边框液晶显示装置因其简洁、美观、相同尺寸可视面积大等优点，已成为高品质显示屏的主要发展趋势。请参阅图1，为一种现有的液晶显示装置的结构示意图，包括：背光模组1’、设置在背光模组1’上表面边缘的第一双面胶110’、设置在第一双面胶11’上表面的液晶显示面板2’、设置在液晶显示面板2’上表面的保护盖板3’、及设置在保护盖板3’下表面包覆背光模组1’及液晶显示面板2’的终端边框4’。请参阅图2，为图1所示的液晶显示装置的背光模组的结构示意图，包括：导光板11’、设置在导光板11’一侧的背光源12’、设置在背光源12’远离导光板11’一侧及设置在导光板11’远离背光源12’一侧的胶框13’、设置在所述胶框13’下表面的第二双面胶120’、通过所述第二双面胶120’贴合在胶框13’下的反射片14’、 设置在所述背光源12’及胶框13’表面的第三双面胶130’、设置与第三双面胶130’上表面的背光源柔性电路板16’、及设置在导光板11’上表面的光学膜片组15’。其中，光学膜片组15’包括由下至上依次设置的扩散片151’、下棱镜152’及上棱镜153’。
该液晶显示装置在进行组合时，先将反射片14’贴合在胶框13’下表面，再在胶框13’所围区域内组装导光板11’、背光源12’、背光源柔性电路板14’及光学膜片组15’，完成背光模组1’的制作，之后在背光模组1’的上表面设置第一双面胶110’并与液晶显示面板2’贴合，最后将组合后的背光模组1’与液晶显示面板2’放入终端边框4’中并在液晶显示面板2’的上表面安装保护盖板3’。由于背光模组1’中的胶框13’的存在，导致背光模组1’的边框较宽，从而导致液晶显示装置的边框进一步加宽，会降低产品的竞争力。
发明内容
本发明的目的在于提供一种无胶框液晶显示装置，组装精度高，并且能够减少液晶显示装置边框宽度，降低产品成本，提升产品竞争力。
本发明的另一目的在于提供一种无胶框液晶显示装置的组装方法，组装精度高，并且能够减少液晶显示装置边框宽度，降低产品成本，使液晶显示面板集成化程度提高，实现液晶显示装置的窄边框，提升产品竞争力。
为实现上述目的，本发明首先提供一种无胶框液晶显示装置，包括：终端边框、设于所述终端边框内的反射片、设于所述反射片上的导光板、对应所述导光板一侧边设置的背光源、设于所述导光板上的液晶显示面板、以及设于所述导光板与液晶显示面板之间的光学模片组；
所述液晶显示面板包括：位于中心的有效显示区域、及位于有效显示区域外围的周边区域；
所述液晶显示面板下表面上贴附有包围所述液晶显示面板的有效显示区域的第一双面胶，所述光学膜片组通过所述第一双面胶与所述液晶显示面板下表面贴合。
所述光学模片组包括自上而下依次层叠设置的上棱镜、下棱镜、及扩散片。
所述上棱镜、下棱镜、及扩散片的尺寸从小到大依次增加，且上棱镜的尺寸大于液晶显示面板的有效显示区域的尺寸，扩散片的尺寸小于或等于液晶显示面板的下表面尺寸。
所述终端边框内部的导光板的一侧设有光源固定槽，所述背光源放置 在所述光源固定槽中。
所述液晶显示面板的上表面还覆盖有保护盖板。
本发明提供一种无胶框液晶显示装置的组装方法，包括如下步骤：
步骤1、提供一终端边框、一反射片、一第二双面胶及一导光板，将第二双面胶贴合于终端边框内部的底面，利用第二双面胶将反射片贴合在终端边框中，并将导光板放置于反射片上；
步骤2、提供一液晶显示面板、及一第一双面胶；
所述液晶显示面板包括：位于中心的有效显示区域、及位于有效显示区域外围的周边区域；
在所述液晶显示面板下表面上贴附第一双面胶，所述第一双面胶包围所述液晶显示面板的有效显示区域；
步骤3、提供一光学膜片组，将所述光学膜片组、液晶显示面板、以及设有反射片和导光板的终端边框组装到一起；
所述光学膜片组位于所述导光板与液晶显示面板之间，并通过第一双面胶贴合在所述液晶显示面板的下表面上。
所述光学模片组包括自上而下依次层叠设置的上棱镜、下棱镜、及扩散片；
所述上棱镜、下棱镜、及扩散片的尺寸从小到大依次增加，所述上棱镜的尺寸大于液晶显示面板的有效显示区域的尺寸，所述扩散片的尺寸小于或等于液晶显示面板的下表面尺寸。
所述步骤3具体包括：
步骤31、将所述上棱镜通过第一双面胶贴合到液晶显示面板的下表面上；
步骤32、将所述扩散片、及下棱镜自下而上依次层叠放置在所述导光板上；
步骤33、将所述液晶显示面板与所述终端边框对组，使得液晶显示面板下表面与导光板的上表面贴合，从而使得放置在导光板上的扩散片、及下棱镜通过第一双面胶与所述液晶显示面板的下表面贴合到一起。
所述步骤3具体包括：
步骤31、将所述上棱镜、下棱镜、及扩散片通过第一双面胶自上而下依次贴合到液晶显示面板的下表面上；
步骤32、将所述液晶显示面板与所述终端边框对组，使得液晶显示面板下表面与导光板的上表面贴合。
所述步骤1中还包括一在所述终端边框内部的导光板的一侧设置光源 固定槽，并将背光源放置其中的步骤；
所述步骤3中还包括一在所述液晶显示面板的上表面覆盖保护盖板的步骤。
本发明还提供一种无胶框液晶显示装置，包括：终端边框、设于所述终端边框内的反射片、设于所述反射片上的导光板、对应所述导光板一侧边设置的背光源、设于所述导光板上的液晶显示面板、以及设于所述导光板与液晶显示面板之间的光学模片组；
所述液晶显示面板包括：位于中心的有效显示区域、及位于有效显示区域外围的周边区域；
所述液晶显示面板下表面上贴附有包围所述液晶显示面板的有效显示区域的第一双面胶，所述光学膜片组通过所述第一双面胶与所述液晶显示面板下表面贴合；
其中，所述光学模片组包括自上而下依次层叠设置的上棱镜、下棱镜、及扩散片；
其中，所述终端边框内部的导光板的一侧设有光源固定槽，所述背光源放置在所述光源固定槽中。
本发明的有益效果：本发明提供的无胶框液晶显示装置，在液晶显示面板的下表明贴附包围有效显示区域的第一双面胶，并将光学膜片组贴合于第一双面胶上，并将反射片与导光板依次设置在终端边框内部，最后将带有光学膜片组的液晶显示面板与带有反射片与导光板的终端边框组合，能够省去背光胶框，减少成本，有效减少液晶显示装置的边框宽度，实现液晶显示装置的窄边框，提升产品竞争力，并且背光模组和液晶显示面板及终端边框一起组装，能够提高液晶显示面板的集成化程度，提升组装精度。本发明提供的无胶框液晶显示装置的组装方法，能够降低成本，减少液晶显示装置的边框宽度，实现液晶显示装置的窄边框，提升产品竞争力，提高液晶显示面板的集成化程度，提升组装精度。
附图说明
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发明加以限制。
附图中，
图1为一种现有的液晶显示装置的结构示意图；
图2为图1所示的液晶显示装置的背光模组结构示意图；
图3为本发明的无胶框液晶显示装置的结构示意图；
图4为本发明的液晶显示装置的组装方法的流程图；
图5与图6为本发明的无胶框液晶显示装置的组装方法的第一实施例的步骤3的示意图；
图7与图8为本发明的无胶框液晶显示装置的组装方法的第二实施例的步骤3的示意图；
图9与图10为本发明的无胶框液晶显示装置的组装方法的第三实施例的步骤3的示意图。
具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明的优选实施例及其附图进行详细描述。
请参阅图3，本发明的的无胶框液晶显示装置，包括：终端边框4、设于所述终端边框4内的反射片14、设于所述反射片14上的导光板11、对应所述导光板11一侧边设置的背光源40、设于所述导光板11上的液晶显示面板2、以及设于所述导光板11与液晶显示面板2之间的光学模片组15；
特别地，所述液晶显示面板2包括：位于中心的有效显示区域21、及位于有效显示区域21外围的周边区域22；
所述液晶显示面板2下表面上贴附有包围所述液晶显示面板2的有效显示区域21的第一双面胶110，所述光学膜片组15通过所述第一双面胶110与所述液晶显示面板2下表面贴合。
具体地，所述终端边框4的材料为硬度较高的材料，优选材料为金属或塑料，所述第一双面胶110为遮光双面胶。
具体地，所述光学模组15包括自上而下依次层叠设置的上棱镜153、下棱镜152、及扩散片151；
需要说明的是，所述上棱镜153、下棱镜152、及扩散片151的尺寸从小到大依次增加，优选地，所述上棱镜153、下棱镜152、及扩散片151均为矩形，所述第一双面胶110为口字型，当上棱镜153贴合在第一双面胶110上之后，第一双面胶110中依旧有可供下棱镜152、及扩散片151贴合的部分；当下棱镜152贴合在第一双面胶110上之后，第一双面胶110中依旧有可供扩散片151贴合的部分，当扩散片151贴合在第一双面胶110上之后，由上棱镜153、下棱镜152、及扩散片151组成的光学膜片组15制作完成。第一双面胶110设置在液晶显示面板2上的周边区域22中，在完成了对上棱镜153、下棱镜152、及扩散片151的贴合的同时，对上棱镜 153、下棱镜152、及扩散片151的位置进行定位，有效地提升了液晶显示装置的组装精度。
此外，所述终端边框4内部的导光板11的一侧还设置光源固定槽41，所述背光源40放置在所述光源固定槽41，从而进一步减少终端边框4的宽度及液晶显示装置边框的宽度。所述液晶显示面板2远离终端边框4的一侧还覆盖保护盖板3。
值得一提的是，由于上述无胶框液晶显示装置利用终端边框4定位并固定背光源40、导光板11、以及反射片14，并通过设置在液晶显示面板2周边区域22上的第一双面胶110具有定位并固定光学膜片组15，因此在终端边框4一侧无需设置传统技术中的用于定位及固定的胶框结构，可省去制作胶框的制程与成本，并且由于不设置胶框结构，能够有效地减少终端边框的宽度，进而减少液晶显示装置边框宽度，可实现液晶显示装置的窄边框，提升产品的竞争力。
请参阅图4，本发明还提供一种无胶框液晶显示装置的组装方法，包括如下步骤：
步骤1、提供一终端边框4、一反射片14、一第二双面胶120及一导光板11，将第二双面胶120贴合于终端边框4内部的底面，利用第二双面胶120将反射片14贴合在终端边框4中，并将导光板11放置于反射片14上；
具体地，所述步骤4中还包括一在所述终端边框4内部的导光板11的一侧设置光源固定槽41，并将背光源40放置其中的步骤。所述第二双面胶120为口字胶。所述终端边框4的材料为硬度较高的材料，优选材料为金属或塑料。
步骤2、提供一液晶显示面板2、及一第一双面胶110；
所述液晶显示面板2包括：位于中心的有效显示区域21、及位于有效显示区域21外围的周边区域22；
在所述液晶显示面板2下表面上贴附第一双面胶110，所述第一双面胶110包围所述液晶显示面板2的有效显示区域21；
具体地，所述第一双面胶110为遮光双面胶。所述步骤2中利用有效显示区域21进行定位，将所述第一双面胶110贴合在液晶显示面板2的周边区域22上，能够保证贴合精度，提升组装效果。
步骤3、提供一光学膜片组15，将所述光学膜片组15、液晶显示面板2、以及设有反射片14和导光板11的终端边框4组装到一起；
所述光学膜片组15位于所述导光板11与液晶显示面板2之间，并通过第一双面胶110贴合在所述液晶显示面板2的下表面上。
具体地，所述光学模组15包括自上而下依次层叠设置的上棱镜153、下棱镜152、及扩散片151；
需要说明的是，所述上棱镜153、下棱镜152、及扩散片151的尺寸从小到大依次增加，优选地，所述上棱镜153、下棱镜152、及扩散片151均为矩形，所述第一双面胶110为口字型，当上棱镜153贴合在第一双面胶110上之后，第一双面胶110中依旧有可供下棱镜152、及扩散片151贴合的部分；当下棱镜152贴合在第一双面胶110上之后，第一双面胶110中依旧有可供扩散片151贴合的部分，当扩散片151贴合在第一双面胶110上之后，由上棱镜153、下棱镜152、及扩散片151组成的光学膜片组15制作完成。第一双面胶110设置在液晶显示面板2上的周边区域22中，在完成了对上棱镜153、下棱镜152、及扩散片151的贴合的同时，对上棱镜153、下棱镜152、及扩散片151的位置进行定位，有效地提升了液晶显示装置的组装精度。
可选地，请参阅图5及图6，在本发明的无胶框液晶显示装置的组装方法的第一实施例中，所述步骤3具体包括：
步骤31、将所述上棱镜153、下棱镜152、及扩散片151通过第一双面胶110自上而下依次贴合到液晶显示面板2的下表面上；
步骤32、将所述液晶显示面板2与所述终端边框4对组，使得液晶显示面板2下表面与导光板11的上表面贴合。
可选地，请参阅图7及图8，在本发明的无胶框液晶显示装置的组装方法的第二实施例中，所述步骤3具体包括：
步骤31、将所述上棱镜153通过第一双面胶110贴合到液晶显示面板2的下表面上；
步骤32、将所述扩散片151、及下棱镜152自下而上依次层叠放置在所述导光板11上；
步骤33、将所述液晶显示面板2与所述终端边框4对组，使得液晶显示面板2下表面与导光板11的上表面贴合，从而使得放置在导光板11上的扩散片151、及下棱镜152通过第一双面胶110与所述液晶显示面板2的下表面贴合到一起。
可选地，请参阅图9及图10，在本发明的无胶框液晶显示装置的组装方法的第三实施例中，所述步骤3具体包括：
步骤31、将所述上棱镜153、及下棱镜152通过第一双面胶110自上而下依次贴合到液晶显示面板2的下表面上；
步骤32、将所述扩散片151放置在所述导光板11上；
步骤33、将所述液晶显示面板2与所述终端边框4对组，使得液晶显示面板2下表面与导光板11的上表面贴合，从而使得放置在导光板11上的扩散片151通过第一双面胶110与所述液晶显示面板2的下表面贴合到一起。
值得一提的是，由于上述无胶框液晶显示装置利用终端边框4定位并固定背光源40、导光板11、以及反射片14，并通过设置在液晶显示面板2周边区域22上的第一双面胶110具有定位并固定光学膜片组15，因此在终端边框4一侧无需设置传统技术中的用于定位及固定的胶框结构，可省去制作胶框的制程与成本，并且由于不设置胶框结构，能够有效地减少终端边框的宽度，进而减少液晶显示装置边框宽度，可实现液晶显示装置的窄边框，提升产品的竞争力。
综上所述，本发明提供的无胶框液晶显示装置，在液晶显示面板的下表明贴附包围有效显示区域的第一双面胶，并将光学膜片组贴合于第一双面胶上，并将反射片与导光板依次设置在终端边框内部，最后将带有光学膜片组的液晶显示面板与带有反射片与导光板的终端边框组合，能够省去背光胶框，减少成本，有效减少液晶显示装置的边框宽度，实现液晶显示装置的窄边框，提升产品竞争力，并且背光模组和液晶显示面板及终端边框一起组装，能够提高液晶显示面板的集成化程度，提升组装精度。本发明提供的无胶框液晶显示装置的组装方法，能够降低成本，减少液晶显示装置的边框宽度，实现液晶显示装置的窄边框，提升产品竞争力，提高液晶显示面板的集成化程度，提升组装精度。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形都应属于本发明后附的权利要求的保护范围。

Claims (13)

  1. 一种无胶框液晶显示装置，包括：终端边框、设于所述终端边框内的反射片、设于所述反射片上的导光板、对应所述导光板一侧边设置的背光源、设于所述导光板上的液晶显示面板、以及设于所述导光板与液晶显示面板之间的光学模片组；
    所述液晶显示面板包括：位于中心的有效显示区域、及位于有效显示区域外围的周边区域；
    所述液晶显示面板下表面上贴附有包围所述液晶显示面板的有效显示区域的第一双面胶，所述光学膜片组通过所述第一双面胶与所述液晶显示面板下表面贴合。
  2. 如权利要求1所述的无胶框液晶显示装置，其中，所述光学模片组包括自上而下依次层叠设置的上棱镜、下棱镜、及扩散片。
  3. 如权利要求2所述的无胶框液晶显示装置，其中，所述上棱镜、下棱镜、及扩散片的尺寸从小到大依次增加，且上棱镜的尺寸大于液晶显示面板的有效显示区域的尺寸，扩散片的尺寸小于或等于液晶显示面板的下表面尺寸。
  4. 如权利要求1所述的无胶框液晶显示装置，其中，所述终端边框内部的导光板的一侧设有光源固定槽，所述背光源放置在所述光源固定槽中。
  5. 如权利要求1所述的无胶框液晶显示装置，其中，所述液晶显示面板的上表面还覆盖有保护盖板。
  6. 一种无胶框液晶显示装置的组装方法，包括如下步骤：
    步骤1、提供一终端边框、一反射片、一第二双面胶及一导光板，将第二双面胶贴合于终端边框内部的底面，利用第二双面胶将反射片贴合在终端边框中，并将导光板放置于反射片上；
    步骤2、提供一液晶显示面板、及一第一双面胶；
    所述液晶显示面板包括：位于中心的有效显示区域、及位于有效显示区域外围的周边区域；
    在所述液晶显示面板下表面上贴附第一双面胶，所述第一双面胶包围所述液晶显示面板的有效显示区域；
    步骤3、提供一光学膜片组，将所述光学膜片组、液晶显示面板、以及设有反射片和导光板的终端边框组装到一起；
    所述光学膜片组位于所述导光板与液晶显示面板之间，并通过第一双 面胶贴合在所述液晶显示面板的下表面上。
  7. 如权利要求6所述的无胶框液晶显示装置的组装方法，其中，所述光学模片组包括自上而下依次层叠设置的上棱镜、下棱镜、及扩散片；
    所述上棱镜、下棱镜、及扩散片的尺寸从小到大依次增加，所述上棱镜的尺寸大于液晶显示面板的有效显示区域的尺寸，所述扩散片的尺寸小于或等于液晶显示面板的下表面尺寸；
    所述步骤1中还包括一在所述终端边框内部的导光板的一侧设置光源固定槽，并将背光源放置其中的步骤；
    所述步骤3中还包括一在所述液晶显示面板的上表面覆盖保护盖板的步骤。
  8. 如权利要求7所述的无胶框液晶显示装置的组装方法，其中，所述步骤3具体包括：
    步骤31、将所述上棱镜通过第一双面胶贴合到液晶显示面板的下表面上；
    步骤32、将所述扩散片、及下棱镜自下而上依次层叠放置在所述导光板上；
    步骤33、将所述液晶显示面板与所述终端边框对组，使得液晶显示面板下表面与导光板的上表面贴合，从而使得放置在导光板上的扩散片、及下棱镜通过第一双面胶与所述液晶显示面板的下表面贴合到一起。
  9. 如权利要求7所述的无胶框液晶显示装置的组装方法，其中，所述步骤3具体包括：
    步骤31、将所述上棱镜、下棱镜、及扩散片通过第一双面胶自上而下依次贴合到液晶显示面板的下表面上；
    步骤32、将所述液晶显示面板与所述终端边框对组，使得液晶显示面板下表面与导光板的上表面贴合。
  10. 如权利要求7所述的无胶框液晶显示装置的组装方法，其中，所述步骤3具体包括：
    步骤31、将所述上棱镜、及下棱镜通过第一双面胶自上而下依次贴合到液晶显示面板的下表面上；
    步骤32、将所述扩散片放置在所述导光板上；
    步骤33、将所述液晶显示面板与所述终端边框对组，使得液晶显示面板下表面与导光板的上表面贴合，从而使得放置在导光板上的扩散片通过第一双面胶与所述液晶显示面板的下表面贴合到一起。
  11. 一种无胶框液晶显示装置，包括：终端边框、设于所述终端边框 内的反射片、设于所述反射片上的导光板、对应所述导光板一侧边设置的背光源、设于所述导光板上的液晶显示面板、以及设于所述导光板与液晶显示面板之间的光学模片组；
    所述液晶显示面板包括：位于中心的有效显示区域、及位于有效显示区域外围的周边区域；
    所述液晶显示面板下表面上贴附有包围所述液晶显示面板的有效显示区域的第一双面胶，所述光学膜片组通过所述第一双面胶与所述液晶显示面板下表面贴合；
    其中，所述光学模片组包括自上而下依次层叠设置的上棱镜、下棱镜、及扩散片；
    其中，所述终端边框内部的导光板的一侧设有光源固定槽，所述背光源放置在所述光源固定槽中。
  12. 如权利要求11所述的无胶框液晶显示装置，其中，所述上棱镜、下棱镜、及扩散片的尺寸从小到大依次增加，且上棱镜的尺寸大于液晶显示面板的有效显示区域的尺寸，扩散片的尺寸小于或等于液晶显示面板的下表面尺寸。
  13. 如权利要求11所述的无胶框液晶显示装置，其中，所述液晶显示面板的上表面还覆盖有保护盖板。
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