WO2013185374A1 - 背光模组及液晶显示装置 - Google Patents

背光模组及液晶显示装置 Download PDF

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Publication number
WO2013185374A1
WO2013185374A1 PCT/CN2012/077317 CN2012077317W WO2013185374A1 WO 2013185374 A1 WO2013185374 A1 WO 2013185374A1 CN 2012077317 W CN2012077317 W CN 2012077317W WO 2013185374 A1 WO2013185374 A1 WO 2013185374A1
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WO
WIPO (PCT)
Prior art keywords
optical film
back plate
backlight module
predetermined angle
bent
Prior art date
Application number
PCT/CN2012/077317
Other languages
English (en)
French (fr)
Inventor
俞刚
Original Assignee
深圳市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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to DE112012006526.3T priority Critical patent/DE112012006526B4/de
Priority to US13/636,170 priority patent/US8985797B2/en
Publication of WO2013185374A1 publication Critical patent/WO2013185374A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • 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
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F2201/46—Fixing elements

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a backlight module and a liquid crystal display device.
  • the optical film 102 is placed on the back plate 101, and the positioning of the optical film 102 on the back plate 101 is achieved by: the back plate 101 A stud 103 is disposed thereon, and a corresponding position on the optical film 102 is provided with an opening 104, and the stud 103 on the back plate 101 is nested with the opening 104 on the optical film 102.
  • the technical solution for positioning the optical film 102 in the backlight module has the following drawbacks: First, the stud 103 needs to be disposed on the back plate 101. Once the position of the stud 103 is deviated, the stud 103 cannot be combined with the optical film. The opening 104 of the 102 is aligned, and the stud 103 can therefore not be nested with the opening 104 of the optical film 102.
  • the back plate 101 or the optical film 102 can only be discarded, and the material is wasted;
  • the sheet 102 and the back sheet 101 are matched to each other for successful combination, that is, the optical film 102 is successfully combined with the back sheet 101, and the back sheet 101 needs to be designed according to the position and size of the opening 104 on the optical film 102.
  • the position and size of the column 103, or the back plate 101 is successfully combined with the optical film 102, and the optical film 102 needs to design the position and size of the upper opening 104 according to the position and size of the stud 103 on the back plate 101. Therefore, the optical film 102 and the back plate 101 between different models are not compatible (cannot be shared).
  • An object of the present invention is to provide a backlight module, which can better realize the positioning of the optical film and the back plate, and simplify the manufacturing process of the backlight module, so that the back plate and the optical film between different types of machines can Share.
  • Another object of the present invention is to provide a liquid crystal display device, which can better realize the positioning of the optical film and the back plate, simplify the manufacturing process of the backlight module of the liquid crystal display device, and make the back plate between different models. It can be shared with an optical film.
  • the invention provides a backlight module, comprising: a light source; a back plate, the back plate has a side wall; an optical film, the optical film is placed on the back plate, and an edge of the optical film is disposed And a positioning member having a hanging portion and a clamping portion, the hanging portion being nested with the opening of the optical film, the clamping portion and the back plate
  • the side wall is nested;
  • the clamping portion includes a main body portion and a first bent portion, the main body portion includes an upper end, and the first bent portion is connected to the upper end, the first bend One end of the folded portion is an extension of the upper end in a first direction, and the first direction has a first predetermined angle with a straight line of the main body portion, and the first predetermined angle is between 30 degrees and Between one hundred and fifty degrees; the suspension portion includes a body portion and a second bent portion, the body portion including a lower end, and the second bent portion is coupled to the lower end.
  • the end of the first bent portion has a fastening portion, and the fastening portion is engaged with the back plate.
  • one end of the second bent portion is an extension of the lower end in a second direction, and the second direction has a second predetermined angle with a straight line of the main body portion.
  • the first predetermined angle is between 30 degrees and 150 degrees.
  • the shape of the opening of the optical film coincides with the cross-sectional shape of the end of the second bent portion.
  • Another object of the present invention is to provide a backlight module, which can better realize the positioning of the optical film and the back plate, simplify the manufacturing process of the backlight module, and make the back plate and the optical film between different models. Can share.
  • the present invention provides a backlight module, comprising: a light source; a back plate, the back plate has a side wall; an optical film, the optical film is placed on the back plate, the optical An edge of the diaphragm is provided with an opening; and a positioning member having a hanging portion and a clamping portion, the hanging portion being nested with the opening of the optical film, the clamping portion being The side walls of the backboard are nested.
  • the clamping portion includes a main body portion and a first bent portion, the main body portion includes an upper end, and the first bent portion is connected to the upper end, the first bending portion One end of the portion is an extension of the upper end in a first direction, the first direction having a first predetermined angle with a straight line of the main body portion, and the first predetermined angle is between thirty degrees and one Between 150 and 50 degrees.
  • the end of the first bent portion has a fastening portion, and the fastening portion is engaged with the back plate.
  • the suspension portion includes a main body portion including a lower end, the second bent portion is connected to the lower end, and the second bent portion One end of the end is an extension of the lower end in a second direction, the second direction having a second predetermined angle with a straight line of the main body portion, the first predetermined angle being between thirty degrees and one hundred Between fifty degrees.
  • the shape of the opening of the optical film coincides with the cross-sectional shape of the end of the second bent portion.
  • Another object of the present invention is to provide a liquid crystal display device, which can better realize the positioning of the optical film and the back plate, simplify the manufacturing process of the backlight module of the liquid crystal display device, and make the back plate between different models. It can be shared with an optical film.
  • the present invention provides a liquid crystal display device comprising: a liquid crystal display panel; and a backlight module;
  • the backlight module includes: a light source; a back plate, the back plate has a side wall; an optical film, The optical film is placed on the back plate, the edge of the optical film is provided with an opening; and a positioning member having a hanging portion and a clamping portion, the hanging portion and the optical film The openings of the sheet are nested, and the clamping portion is nested with the side wall of the back sheet.
  • the nip portion includes a main body portion including a top end portion, and the first bent portion is connected to the upper end portion, the first bending portion One end of the portion is an extension of the upper end in a first direction, the first direction having a first predetermined angle with a straight line of the main body portion, and the first predetermined angle is between thirty degrees and one Between 150 and 50 degrees.
  • the end of the first bent portion has a fastening portion, and the fastening portion is engaged with the back plate.
  • the suspension portion includes a main body portion including a lower end, the second bent portion is connected to the lower end, and the second bent portion One end of the end is an extension of the lower end in a second direction, the second direction having a second predetermined angle with a straight line of the main body portion, the first predetermined angle being between thirty degrees and one hundred Between fifty degrees.
  • the shape of the opening of the optical film coincides with the cross-sectional shape of the end of the second bent portion.
  • the present invention utilizes a positioning member to position the optical film, so that it is not necessary to provide a stud on the back plate, which simplifies the design and manufacturing process of the back plate, and also avoids the traditional technology.
  • the position and size of the studs are not matched with the position and size of the openings on the optical film to invalidate the optical film or the back plate.
  • the positioning member of the present invention has a hanging portion for use with the optical
  • the openings in the diaphragm are nested to fix the optical film to the positioning member
  • the positioning member of the present invention further has a clamping portion, and the positioning member is nested with the side wall on the back plate by the clamping portion,
  • the positioning member is movable on the side wall of the backing plate, and the optical film can be realized by using two or more positioning members at the edges of the optical film in two different directions to be engaged with the optical film. Positioning on the backplane.
  • the positional relationship between the optical film and the positioning member is relatively fixed, if the clamping portion of the positioning member and the side of the backing plate When the wall is nested, the positional relationship between the positioning member and the backing plate is not fixed, and therefore, the optical film can be fixed to the backing plate by the positioning member according to the actual position of its own opening.
  • the positioning member the back plate and the optical film between the different types of machines can be mutually compatible, that is, can be shared, and the flexibility of the manufacturing process of the backlight module of the liquid crystal display device is enhanced.
  • FIG. 1 is an isometric view of a backlight module of a conventional liquid crystal display device
  • FIG. 2 is an isometric view of a first embodiment of a backlight module of the present invention
  • Figure 2A is a partial enlarged view of a region A in Figure 2;
  • Figure 3 is a right side elevational view of the first embodiment of the positioning member of Figure 2;
  • Figure 4 is a right side elevational view of the second embodiment of the positioning member of Figure 2.
  • FIG. 2 is an isometric view of a first embodiment of a backlight module of the present invention
  • FIG. 2A is a partial enlarged view of a region A of FIG.
  • the backlight module of the present invention comprises a back plate 101, a light source (not shown), an optical film 102 and a positioning member 201, and a side wall 202 is provided at the edge of the back plate 101.
  • the optical film 102 is placed on the back plate 101, and the light source is placed under the optical film 102.
  • the clamping portion 204 of the positioning member 201 is nested with the side wall 202 of the back plate 101, and the edge on the optical film 102 is An opening 104 is provided, the hanging portion 203 of the positioning member 201 is nested with the opening 104 of the optical film 102, and the cross-sectional shape of the opening 104 on the optical film 102 is opposite to the end of the hanging portion 203 of the positioning member 201.
  • the cross-sectional shape is consistent.
  • FIG. 3 is a right side view of the first embodiment of the positioning member 201 of FIG.
  • the positioning member 201 of the present invention has a hanging portion 203 and a clamping portion 204.
  • the clamping portion 204 includes a main body portion 302 and a first bent portion 303, and the main body portion 302 has an upper end 304 and a lower end 305.
  • the first bent portion 303 is connected to the upper end 304 of the main body portion 302.
  • One end of the first bent portion 303 is an extension of the upper end 304 of the main body portion 302 in the first direction 306, the first direction 306 and the main portion
  • the line in which 302 is located has a first predetermined angle, that is, the direction in which the first direction 306 is in line with the line connecting the upper end 304 and the lower end 305 of the body portion 302 has a first predetermined angle.
  • the first predetermined angle ranges from 30 degrees to 150 degrees, and the first predetermined angle can be determined according to the angle between the side wall 202 and the back plate 101, that is, The side wall 202 is inclined to the outside of the back plate 101.
  • the first predetermined angle can be set to one Baidu, and so on.
  • the side wall 202 is perpendicular to the back plate 101, and the first predetermined angle is ninety degrees.
  • the first bending portion 303 is bent downward, and the angle at which the first bending portion 303 is bent ranges from 30 degrees to 150 degrees. In this embodiment, the first The angle at which the bent portion 303 is bent is ninety degrees.
  • the portion of the first bent portion 303 that is bent downward has a first distance D1 from the main body portion 302, and the first distance D1 is greater than or equal to the thickness of the side wall 202 of the back plate 101, the first A distance D1 is a distance between the first bending portion 303 and an opposite surface of the main body portion 302. If the first bending portion 303 and the opposite surface of the main body portion 302 are not parallel, the The first distance D1 is a width of a portion of the first bent portion 303 that connects the opposite faces.
  • the clamping portion 204 is nested with the side wall 202.
  • the hanging portion 203 includes the main body portion 302 and the second bent portion 301.
  • the second bent portion 301 is connected to the lower end 305 of the main body portion 302.
  • One end of the second bent portion 301 is the lower end 305 of the main body portion 302 at the second An extension in direction 307, the second direction 307 having a second predetermined angle with the line in which the body portion 302 is located, i.e., the connection of the second direction 307 to the upper end 304 and the lower end 305 of the body portion 302.
  • the direction has a second predetermined angle.
  • the second predetermined angle ranges from 30 degrees to 150 degrees, and the second predetermined angle can be determined according to the angle between the side wall 202 and the back plate 101, that is, The side wall 202 is inclined toward the inside of the back plate 101. If the angle between the back plate 101 and the side wall 202 is eighty degrees, the second predetermined angle may be set to eighty degrees. analogy. In this embodiment, the side wall 202 is perpendicular to the back plate 101, and the second predetermined angle is ninety degrees.
  • the second bending portion 301 is bent upward, and the angle at which the second bending portion 301 is bent ranges from 30 degrees to 150 degrees. In this embodiment, the second bending portion The angle at which the folded portion 301 is bent is ninety degrees.
  • the portion of the second bent portion 301 that is bent upward has a second distance D2 from the main body portion 302, and the second distance D2 is greater than or equal to the optical film 102 surrounding the opening 104 and placed in the positioning.
  • the second distance D2 being a distance between the second bent portion 301 and an opposite surface of the main body portion 302, if the second bent portion 301 and the main portion If the opposite faces of the 302 are not parallel, the second distance D2 is the width of the portion of the second bent portion 301 connecting the opposite faces.
  • the cross-sectional shape of the end of the second bent portion 301 coincides with the cross-sectional shape of the opening 104 of the optical film 102.
  • the cross-sectional shape of the portion where the second bent portion 301 is bent upward is The shape of the opening 104 of the optical film 102 is uniform, and the portion of the second bending portion 301 that is bent upward is nested with the opening 104 of the optical film 102.
  • the angle between the first direction 306 and the second direction 307 is greater than or equal to ninety degrees and less than or equal to one hundred and eighty degrees.
  • the first predetermined angle is a ninety degree angle
  • the second predetermined angle is a ninety degree angle
  • the first direction 306 is opposite to the second direction 307.
  • the end of the first bending portion 303 of the positioning member 201 may further include a fastening portion 401. As shown in FIG. 4, the fastening portion 401 is fastened to the back plate 101. The fastening portion 401 is engaged with the bottom surface of the back plate 101.
  • the liquid crystal display device of the present invention comprises a liquid crystal display panel and a backlight module, and the liquid crystal display panel and the backlight module are superimposed and integrated.
  • the backlight module includes a back plate 101, a light source (not shown), an optical film 102, and a positioning member 201. As shown in FIGS. 2 and 2A, a side wall 202 is disposed at an edge of the back plate 101.
  • the optical film 102 is placed on the back plate 101, and the light source is placed under the optical film 102.
  • the clamping portion 204 of the positioning member 201 is nested with the side wall 202 of the back plate 101, and the edge on the optical film 102 is An opening 104 is provided, the hanging portion 203 of the positioning member 201 is nested with the opening 104 of the optical film 102, and the cross-sectional shape of the opening 104 on the optical film 102 is opposite to the end of the hanging portion 203 of the positioning member 201.
  • the cross-sectional shape is consistent.
  • the positioning member 201 has a hanging portion 203 and a clamping portion 204.
  • the clamping portion 204 includes a main body portion 302 and a first bent portion 303
  • the main body portion 302 has an upper end 304 and a lower end 305.
  • the first bent portion 303 is connected to the upper end 304 of the main body portion 302.
  • One end of the first bent portion 303 is an extension of the upper end 304 of the main body portion 302 in the first direction 306, the first direction 306 and the main portion
  • the line in which 302 is located has a first predetermined angle, that is, the direction in which the first direction 306 is in line with the line connecting the upper end 304 and the lower end 305 of the body portion 302 has a first predetermined angle.
  • the first predetermined angle ranges from 30 degrees to 150 degrees, and the first predetermined angle can be determined according to the angle between the side wall 202 and the back plate 101, that is, The side wall 202 is inclined to the outside of the back plate 101.
  • the first predetermined angle can be set to one Baidu, and so on.
  • the side wall 202 is perpendicular to the back plate 101, and the first predetermined angle is ninety degrees.
  • the first bending portion 303 is bent downward, and the angle at which the first bending portion 303 is bent ranges from 30 degrees to 150 degrees. In this embodiment, the first The angle at which the bent portion 303 is bent is ninety degrees.
  • the portion of the first bent portion 303 that is bent downward has a first distance D1 from the main body portion 302, and the first distance D1 is greater than or equal to the thickness of the side wall 202 of the back plate 101, the first A distance D1 is a distance between the first bending portion 303 and an opposite surface of the main body portion 302. If the first bending portion 303 and the opposite surface of the main body portion 302 are not parallel, the The first distance D1 is a width of a portion of the first bent portion 303 that connects the opposite faces.
  • the clamping portion 204 is nested with the side wall 202.
  • the hanging portion 203 includes the main body portion 302 and the second bent portion 301.
  • the second bent portion 301 is connected to the lower end 305 of the main body portion 302.
  • One end of the second bent portion 301 is the lower end 305 of the main body portion 302 at the second An extension in direction 307, the second direction 307 having a second predetermined angle with the line in which the body portion 302 is located, i.e., the connection of the second direction 307 to the upper end 304 and the lower end 305 of the body portion 302.
  • the direction has a second predetermined angle.
  • the second predetermined angle ranges from 30 degrees to 150 degrees, and the second predetermined angle can be determined according to the angle between the side wall 202 and the back plate 101, that is, The side wall 202 is inclined toward the inside of the back plate 101. If the angle between the back plate 101 and the side wall 202 is eighty degrees, the second predetermined angle may be set to eighty degrees. analogy. In this embodiment, the side wall 202 is perpendicular to the back plate 101, and the second predetermined angle is ninety degrees.
  • the second bending portion 301 is bent upward, and the angle at which the second bending portion 301 is bent ranges from 30 degrees to 150 degrees. In this embodiment, the second bending portion The angle at which the folded portion 301 is bent is ninety degrees.
  • the portion of the second bent portion 301 that is bent upward has a second distance D2 from the main body portion 302, and the second distance D2 is greater than or equal to the optical film 102 surrounding the opening 104 and placed in the positioning.
  • the second distance D2 being a distance between the second bent portion 301 and an opposite surface of the main body portion 302, if the second bent portion 301 and the main portion If the opposite faces of the 302 are not parallel, the second distance D2 is the width of the portion of the second bent portion 301 connecting the opposite faces.
  • the cross-sectional shape of the end of the second bent portion 301 coincides with the cross-sectional shape of the opening 104 of the optical film 102. Specifically, the cross-sectional shape of the portion where the second bent portion 301 is bent upward is The shape of the opening 104 of the optical film 102 is uniform, and the portion of the second bending portion 301 that is bent upward is nested with the opening 104 of the optical film 102.
  • the angle between the first direction 306 and the second direction 307 is greater than or equal to ninety degrees and less than or equal to one hundred and eighty degrees. In this embodiment, the first predetermined angle is a ninety degree angle, the second predetermined angle is a ninety degree angle, and the first direction 306 is opposite to the second direction 307.
  • the end of the first bending portion 303 of the positioning member 201 may further include a fastening portion 401. As shown in FIG. 4, the fastening portion 401 is fastened to the back plate 101. The fastening portion 401 is engaged with the bottom surface of the back plate 101.
  • the positioning member 201 since the optical film 102 is positioned by the positioning member 201, it is not necessary to provide the stud 103 on the back plate 101, which simplifies the design and manufacturing process of the back plate 101, and also avoids the conventional technology.
  • the position and size of the studs 103 on the backing plate 101 do not match the position and size of the openings 104 on the optical film 102 to invalidate the optical film 102 or the back plate 101.
  • the positioning member 201 of the present invention has a suspension.
  • the 203, the hanging portion 203 is used for nesting with the opening 104 on the optical film 102 to fix the optical film 102 and the positioning member 201, and the positioning member 201 of the present invention further has a clamping portion 204, and The positioning member 201 is nested with the side wall 202 on the backing plate 101 by the clamping portion 204, so that the positioning member 201 can be moved on the side wall 202 of the backing plate 101 through the edges in two different directions of the optical film 102
  • the positioning of the optical film 102 on the backing plate 101 can be achieved by using two or more positioning members 201 to be engaged with the optical film 102.
  • the positional relationship between the optical film 102 and the positioning member 201 is relatively fixed, if the positioning member The clamping portion 204 of the 201 is nested with the side wall 202 of the backing plate 101, and the positional relationship between the positioning member 201 and the backing plate 101 is not fixed, and therefore, the optical film 102 can be actually based on its own opening 104.
  • the position is fixed to the backing plate 101 by the positioning member 201.
  • the back plate 101 and the optical film 102 between different models can be mutually compatible, that is, can be shared, and the flexibility of the manufacturing process of the backlight module of the liquid crystal display device is enhanced.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光模组及液晶显示装置，包括：光源；背板（101），所述背板（101）具有侧墙（202）；光学膜片（102），所述光学膜片（102）放置于所述背板（101）上，所述光学膜片（102）的边缘设置有开孔（104）；及定位构件（201），所述定位构件（201）具有悬挂部（203）和夹持部（204），所述悬挂部（203）与所述光学膜片（102）的所述开孔（104）相嵌套，所述夹持部（204）与所述背板（101）的所述侧墙（202）相嵌套。

Description

背光模组及液晶显示装置 技术领域
本发明涉及液晶显示技术领域，特别涉及一种背光模组及液晶显示装置。
 背景技术
传统的液晶显示装置的背光模组中，如图1所示，光学膜片102放置于背板101上，光学膜片102在背板101上的定位是通过以下方式来实现的：背板101上设有铆柱103，光学膜片102上的相应位置设置有开孔104，背板101上的铆柱103与光学膜片102上的开孔104相嵌套。
上述背光模组中对光学膜片102进行定位的技术方案具有以下缺陷：一、需要在背板101上设置铆柱103，一旦铆柱103的位置有偏差，则铆柱103不能与光学膜片102上的开孔104对准，铆柱103因此不能与光学膜片102上的开孔104相嵌套，此时背板101或光学膜片102只能作废，浪费了材料；二、光学膜片102与背板101要互相匹配才能成功组合，即，光学膜片102要和背板101成功组合，背板101需要根据光学膜片102上的开孔104的位置、大小来设计其上铆柱103的位置、大小，或者，背板101要和光学膜片102成功组合，光学膜片102需要根据背板101上的铆柱103的位置、大小来设计其上开孔104的位置、大小，因此，不同机种之间的光学膜片102和背板101不兼容（不能共用）。
因此，有必要提出一种新的技术方案，以解决上述技术问题。
 技术问题
本发明的一个目的在于提供一种背光模组，其能更好地实现光学膜片与背板的定位，简化背光模组的制作工序，使得不同机种之间的背板与光学膜片能够共用。
本发明的另一个目的在于提供一种液晶显示装置，其能更好地实现光学膜片与背板的定位，简化液晶显示装置的背光模组的制作工序，使得不同机种之间的背板与光学膜片能够共用。
 技术解决方案
本发明提供了一种背光模组，包括：光源；背板，所述背板具有侧墙；光学膜片，所述光学膜片放置于所述背板上，所述光学膜片的边缘设置有开孔；及定位构件，所述定位构件具有悬挂部和夹持部，所述悬挂部与所述光学膜片的所述开孔相嵌套，所述夹持部与所述背板的所述侧墙相嵌套；所述夹持部包括主体部和第一弯折部，所述主体部包括上末端，所述第一弯折部与所述上末端相连，所述第一弯折部的一端为所述上末端在第一方向上的延伸，所述第一方向与所述主体部所在的直线具有第一预定夹角，所述第一预定夹角介于三十度至一百五十度之间；所述悬挂部包括主体部和第二弯折部，所述主体部包括下末端，所述第二弯折部与所述下末端相连。
在上述背光模组中，所述第一弯折部的末端具有扣合部，所述扣合部与所述背板扣合。
在上述背光模组中，所述第二弯折部的一端为所述下末端在第二方向上的延伸，所述第二方向与所述主体部所在的直线具有第二预定夹角。
在上述背光模组中，所述第一预定夹角介于三十度至一百五十度之间。
在上述背光模组中，所述光学膜片的所述开孔的形状与所述第二弯折部的末端的横截面形状一致。
本发明的另一个目的在于提供一种背光模组，其能更好地实现光学膜片与背板的定位，简化背光模组的制作工序，使得不同机种之间的背板与光学膜片能够共用。
为解决上述问题，本发明提供了一种背光模组，包括：光源；背板，所述背板具有侧墙；光学膜片，所述光学膜片放置于所述背板上，所述光学膜片的边缘设置有开孔；以及定位构件，所述定位构件具有悬挂部和夹持部，所述悬挂部与所述光学膜片的所述开孔相嵌套，所述夹持部与所述背板的所述侧墙相嵌套。
在上述背光模组中，所述夹持部包括主体部和第一弯折部，所述主体部包括上末端，所述第一弯折部与所述上末端相连，所述第一弯折部的一端为所述上末端在第一方向上的延伸，所述第一方向与所述主体部所在的直线具有第一预定夹角，所述第一预定夹角介于三十度至一百五十度之间。
在上述背光模组中，所述第一弯折部的末端具有扣合部，所述扣合部与所述背板扣合。
在上述背光模组中，所述悬挂部包括主体部和第二弯折部，所述主体部包括下末端，所述第二弯折部与所述下末端相连，所述第二弯折部的一端为所述下末端在第二方向上的延伸，所述第二方向与所述主体部所在的直线具有第二预定夹角，所述第一预定夹角介于三十度至一百五十度之间。
在上述背光模组中，所述光学膜片的所述开孔的形状与所述第二弯折部的末端的横截面形状一致。
本发明的另一个目的在于提供一种液晶显示装置，其能更好地实现光学膜片与背板的定位，简化液晶显示装置的背光模组的制作工序，使得不同机种之间的背板与光学膜片能够共用。
为解决上述问题，本发明提供了一种液晶显示装置，包括：液晶显示面板；以及背光模组；所述背光模组包括：光源；背板，所述背板具有侧墙；光学膜片，所述光学膜片放置于所述背板上，所述光学膜片的边缘设置有开孔；及定位构件，所述定位构件具有悬挂部和夹持部，所述悬挂部与所述光学膜片的所述开孔相嵌套，所述夹持部与所述背板的所述侧墙相嵌套。
在上述液晶显示装置中，所述夹持部包括主体部和第一弯折部，所述主体部包括上末端，所述第一弯折部与所述上末端相连，所述第一弯折部的一端为所述上末端在第一方向上的延伸，所述第一方向与所述主体部所在的直线具有第一预定夹角，所述第一预定夹角介于三十度至一百五十度之间。
在上述液晶显示装置中，所述第一弯折部的末端具有扣合部，所述扣合部与所述背板扣合。
在上述液晶显示装置中，所述悬挂部包括主体部和第二弯折部，所述主体部包括下末端，所述第二弯折部与所述下末端相连，所述第二弯折部的一端为所述下末端在第二方向上的延伸，所述第二方向与所述主体部所在的直线具有第二预定夹角，所述第一预定夹角介于三十度至一百五十度之间。
在上述液晶显示装置中，所述光学膜片的所述开孔的形状与所述第二弯折部的末端的横截面形状一致。
相对现有技术，本发明利用定位构件来对光学膜片进行定位，因此不需要在背板上设置铆柱，简化了背板的设计与制作工序，同时也避免了传统技术中因背板上的铆柱的位置、大小与光学膜片上的开孔的位置、大小不匹配而使得光学膜片或背板作废，此外，本发明的定位构件具有悬挂部，所述悬挂部用于与光学膜片上的开孔相嵌套，从而使光学膜片与定位构件固定，本发明的定位构件还具有夹持部，并且定位构件通过夹持部与背板上的侧墙相嵌套，因此定位构件能够在背板的侧墙上移动，通过在光学膜片的两个不同方向的边缘处使用两个或两个以上的定位构件来与光学膜片相扣，即可实现对光学膜片在背板上的定位。
 有益效果
在本发明中，若光学膜片与定位构件相扣于定位构件的悬挂部，则光学膜片与定位构件之间的位置关系是相对固定的，若定位构件的夹持部与背板的侧墙相嵌套，则定位构件与背板之间的位置关系不是固定的，因此，光学膜片能够根据其自身开孔的实际位置利用定位构件固定于背板上。通过定位构件，不同机种之间的背板和光学膜片能够互相兼容，即能够共用，增强了液晶显示装置的背光模组制造工序的灵活性。
 附图说明
图1为传统的液晶显示装置的背光模组的等轴测图；
图2为本发明的背光模组的第一实施例的等轴测图；
图2A为图2中区域A的局部放大图；
图3为图2中定位构件的第一实施例的右视图；及
图4为图2中定位构件的第二实施例的右视图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。
参考图2及2A，图2为本发明的背光模组的第一实施例的等轴测图，图2A为图2中区域A的局部放大图。本发明的背光模组包括背板101、光源（图中未示出）、光学膜片102和定位构件201，背板101的边缘处设有侧墙202。光学膜片102放置于背板101之上，光源放置于光学膜片102之下，定位构件201的夹持部204与背板101的侧墙202相嵌套，光学膜片102上的边缘处设置有开孔104，定位构件201的悬挂部203与光学膜片102的开孔104相嵌套，光学膜片102上的开孔104的横截面形状与定位构件201的悬挂部203的末端的横截面形状一致。
参考图3，图3为图2中定位构件201的第一实施例的右视图。本发明的定位构件201具有悬挂部203和夹持部204。其中，夹持部204包括主体部302和第一弯折部303，主体部302具有上末端304和下末端305。第一弯折部303与主体部302的上末端304相连，第一弯折部303的一端为主体部302的上末端304在第一方向306上的延伸，所述第一方向306与主体部302所在的直线具有第一预定夹角，即，所述第一方向306与主体部302的上末端304和下末端305的连线所在的方向具有第一预定夹角。所述第一预定夹角的取值范围为三十度至一百五十度，可以根据侧墙202与背板101之间的夹角来确定所述第一预定夹角，即，若所述侧墙202向背板101外倾斜，假设所述背板101与所述侧墙202之间的夹角为一百度，则可将所述第一预定夹角设定为一百度，依次类推。在本实施例中，侧墙202与背板101垂直，所述第一预定夹角为九十度。
所述第一弯折部303向下弯折，所述第一弯折部303弯折的角度的取值范围为三十度至一百五十度，在本实施例中，所述第一弯折部303弯折的角度为九十度。所述第一弯折部303向下弯折的部分与所述主体部302具有第一距离D1，所述第一距离D1大于或等于所述背板101的侧墙202的厚度，所述第一距离D1为所述第一弯折部303与所述主体部302的相对面之间的距离，若所述第一弯折部303与所述主体部302的相对面不平行，则所述第一距离D1为所述第一弯折部303上连接所述两相对面的部位的宽度。所述夹持部204与所述侧墙202相嵌套。
悬挂部203包括上述主体部302和第二弯折部301，第二弯折部301与主体部302下末端305相连，第二弯折部301的一端为主体部302的下末端305在第二方向307上的延伸，所述第二方向307与主体部302所在的直线具有第二预定夹角，即，所述第二方向307与主体部302的上末端304和下末端305的连线所在的方向具有第二预定夹角。所述第二预定夹角的取值范围为三十度至一百五十度，可以根据侧墙202与背板101之间的夹角来确定所述第二预定夹角，即，若所述侧墙202向背板101内倾斜，假设所述背板101与所述侧墙202之间的夹角为八十度，则可将所述第二预定夹角设定为八十度，依次类推。在本实施例中，侧墙202与背板101垂直，所述第二预定夹角为九十度。
所述第二弯折部301向上弯折，所述第二弯折部301弯折的角度的取值范围为三十度至一百五十度，在本实施例中，所述第二弯折部301弯折的角度为九十度。所述第二弯折部301向上弯折的部分与所述主体部302具有第二距离D2，所述第二距离D2大于或等于光学膜片102上包围所述开孔104的并且置于定位构件201上的部分的宽度，所述第二距离D2为所述第二弯折部301与所述主体部302相对面之间的距离，若所述第二弯折部301与所述主体部302相对面不平行，则，所述第二距离D2为第二弯折部301上连接所述两相对面之间的部位的宽度。所述第二弯折部301的末端的横截面形状与光学膜片102的开孔104的横截面形状一致，具体地，所述第二弯折部301向上弯折的部分的横截面形状与光学膜片102的开孔104的形状一致，所述第二弯折部301向上弯折的部分与光学膜片102的开孔104相嵌套。所述第一方向306与所述第二方向307的夹角大于或等于九十度并且小于或等于一百八十度。在本实施例中，所述第一预定夹角为九十度角，所述第二预定夹角为九十度角，第一方向306与第二方向307相反。
作为对上述实施例的一种改进，定位构件201的第一弯折部303的末端还可以包括扣合部401，如图4所示，所述扣合部401与背板101扣合，具体地，所述扣合部401与背板101的底面扣合。
本发明的液晶显示装置包括液晶显示面板和背光模组，液晶显示面板与背光模组叠加组合为一体。其中，背光模组包括背板101、光源（图中未示出）、光学膜片102和定位构件201，如图2及2A所示，背板101的边缘处设有侧墙202。光学膜片102放置于背板101之上，光源放置于光学膜片102之下，定位构件201的夹持部204与背板101的侧墙202相嵌套，光学膜片102上的边缘处设置有开孔104，定位构件201的悬挂部203与光学膜片102的开孔104相嵌套，光学膜片102上的开孔104的横截面形状与定位构件201的悬挂部203的末端的横截面形状一致。
定位构件201具有悬挂部203和夹持部204。如图3所示，其中，夹持部204包括主体部302和第一弯折部303，主体部302具有上末端304和下末端305。第一弯折部303与主体部302的上末端304相连，第一弯折部303的一端为主体部302的上末端304在第一方向306上的延伸，所述第一方向306与主体部302所在的直线具有第一预定夹角，即，所述第一方向306与主体部302的上末端304和下末端305的连线所在的方向具有第一预定夹角。所述第一预定夹角的取值范围为三十度至一百五十度，可以根据侧墙202与背板101之间的夹角来确定所述第一预定夹角，即，若所述侧墙202向背板101外倾斜，假设所述背板101与所述侧墙202之间的夹角为一百度，则可将所述第一预定夹角设定为一百度，依次类推。在本实施例中，侧墙202与背板101垂直，所述第一预定夹角为九十度。
所述第一弯折部303向下弯折，所述第一弯折部303弯折的角度的取值范围为三十度至一百五十度，在本实施例中，所述第一弯折部303弯折的角度为九十度。所述第一弯折部303向下弯折的部分与所述主体部302具有第一距离D1，所述第一距离D1大于或等于所述背板101的侧墙202的厚度，所述第一距离D1为所述第一弯折部303与所述主体部302的相对面之间的距离，若所述第一弯折部303与所述主体部302的相对面不平行，则所述第一距离D1为所述第一弯折部303上连接所述两相对面的部位的宽度。
所述夹持部204与所述侧墙202相嵌套。悬挂部203包括上述主体部302和第二弯折部301，第二弯折部301与主体部302下末端305相连，第二弯折部301的一端为主体部302的下末端305在第二方向307上的延伸，所述第二方向307与主体部302所在的直线具有第二预定夹角，即，所述第二方向307与主体部302的上末端304和下末端305的连线所在的方向具有第二预定夹角。所述第二预定夹角的取值范围为三十度至一百五十度，可以根据侧墙202与背板101之间的夹角来确定所述第二预定夹角，即，若所述侧墙202向背板101内倾斜，假设所述背板101与所述侧墙202之间的夹角为八十度，则可将所述第二预定夹角设定为八十度，依次类推。在本实施例中，侧墙202与背板101垂直，所述第二预定夹角为九十度。
所述第二弯折部301向上弯折，所述第二弯折部301弯折的角度的取值范围为三十度至一百五十度，在本实施例中，所述第二弯折部301弯折的角度为九十度。所述第二弯折部301向上弯折的部分与所述主体部302具有第二距离D2，所述第二距离D2大于或等于光学膜片102上包围所述开孔104的并且置于定位构件201上的部分的宽度，所述第二距离D2为所述第二弯折部301与所述主体部302相对面之间的距离，若所述第二弯折部301与所述主体部302相对面不平行，则，所述第二距离D2为第二弯折部301上连接所述两相对面之间的部位的宽度。
所述第二弯折部301的末端的横截面形状与光学膜片102的开孔104的横截面形状一致，具体地，所述第二弯折部301向上弯折的部分的横截面形状与光学膜片102的开孔104的形状一致，所述第二弯折部301向上弯折的部分与光学膜片102的开孔104相嵌套。所述第一方向306与所述第二方向307的夹角大于或等于九十度并且小于或等于一百八十度。在本实施例中，所述第一预定夹角为九十度角，所述第二预定夹角为九十度角，第一方向306与第二方向307相反。作为对上述实施例的一种改进，定位构件201的第一弯折部303的末端还可以包括扣合部401，如图4所示，所述扣合部401与背板101扣合，具体地，所述扣合部401与背板101的底面扣合。
本发明中，由于利用定位构件201来对光学膜片102进行定位，因此不需要在背板101上设置铆柱103，简化了背板101的设计与制作工序，同时也避免了传统技术中因背板101上的铆柱103的位置、大小与光学膜片102上的开孔104的位置、大小不匹配而使得光学膜片102或背板101作废，此外，本发明的定位构件201具有悬挂部203，所述悬挂部203用于与光学膜片102上的开孔104相嵌套，从而使光学膜片102与定位构件201固定，本发明的定位构件201还具有夹持部204，并且定位构件201通过夹持部204与背板101上的侧墙202相嵌套，因此定位构件201能够在背板101的侧墙202上移动，通过在光学膜片102的两个不同方向的边缘处使用两个或两个以上的定位构件201来与光学膜片102相扣，即可实现对光学膜片102在背板101上的定位。
再者，在本发明中，若光学膜片102与定位构件201相扣于定位构件201的悬挂部203，则光学膜片102与定位构件201之间的位置关系是相对固定的，若定位构件201的夹持部204与背板101的侧墙202相嵌套，则定位构件201与背板101之间的位置关系不是固定的，因此，光学膜片102能够根据其自身开孔104的实际位置利用定位构件201固定于背板101上。通过定位构件201，不同机种之间的背板101和光学膜片102能够互相兼容，即能够共用，增强了液晶显示装置的背光模组制造工序的灵活性。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
 本发明的实施方式
工业实用性
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Claims (15)

  1. 一种背光模组，其包括：
    光源；
    背板，所述背板具有侧墙；
    光学膜片，所述光学膜片放置于所述背板上，所述光学膜片的边缘设置有开孔；及
    定位构件，所述定位构件具有悬挂部和夹持部，所述悬挂部与所述光学膜片的所述开孔相嵌套，所述夹持部与所述背板的所述侧墙相嵌套；
    所述夹持部包括主体部和第一弯折部，所述主体部包括上末端，所述第一弯折部与所述上末端相连，所述第一弯折部的一端为所述上末端在第一方向上的延伸，所述第一方向与所述主体部所在的直线具有第一预定夹角，所述第一预定夹角介于三十度至一百五十度之间；
    所述悬挂部包括主体部和第二弯折部，所述主体部包括下末端，所述第二弯折部与所述下末端相连。
  2. 根据权利要求1所述的背光模组，其中
    所述第一弯折部的末端具有扣合部，所述扣合部与所述背板扣合。
  3. 根据权利要求2所述的背光模组，其中
    所述第二弯折部的一端为所述下末端在第二方向上的延伸，所述第二方向与所述主体部所在的直线具有第二预定夹角。
  4. 根据权利要求3所述的背光模组，其中
    所述第一预定夹角介于三十度至一百五十度之间。
  5. 根据权利要求4所述的背光模组，其中
    所述光学膜片的所述开孔的形状与所述第二弯折部的末端的横截面形状一致。
  6. 一种背光模组，其包括：
    光源；
    背板，所述背板具有侧墙；
    光学膜片，所述光学膜片放置于所述背板上，所述光学膜片的边缘设置有开孔；及
    定位构件，所述定位构件具有悬挂部和夹持部，所述悬挂部与所述光学膜片的所述开孔相嵌套，所述夹持部与所述背板的所述侧墙相嵌套。
  7. 根据权利要求6所述的背光模组，其中
    所述夹持部包括主体部和第一弯折部，所述主体部包括上末端，所述第一弯折部与所述上末端相连，所述第一弯折部的一端为所述上末端在第一方向上的延伸，所述第一方向与所述主体部所在的直线具有第一预定夹角，所述第一预定夹角介于三十度至一百五十度之间。
  8. 根据权利要求7所述的背光模组，其中
    所述第一弯折部的末端具有扣合部，所述扣合部与所述背板扣合。
  9. 根据权利要求6所述的背光模组，其中
    所述悬挂部包括主体部和第二弯折部，所述主体部包括下末端，所述第二弯折部与所述下末端相连，所述第二弯折部的一端为所述下末端在第二方向上的延伸，所述第二方向与所述主体部所在的直线具有第二预定夹角，所述第一预定夹角介于三十度至一百五十度之间。
  10. 根据权利要求9所述的背光模组，其中
    所述光学膜片的所述开孔的形状与所述第二弯折部的末端的横截面形状一致。
  11. 一种液晶显示装置，其包括：
    液晶显示面板；以及
    背光模组，所述背光模组包括：
    光源；
    背板，所述背板具有侧墙；
    光学膜片，所述光学膜片放置于所述背板上，所述光学膜片的边缘设置有开孔；及
    定位构件，所述定位构件具有悬挂部和夹持部，所述悬挂部与所述光学膜片的所述开孔相嵌套，所述夹持部与所述背板的所述侧墙相嵌套。
  12. 根据权利要求11所述的液晶显示装置，其中
    所述夹持部包括主体部和第一弯折部，所述主体部包括上末端，所述第一弯折部与所述上末端相连，所述第一弯折部的一端为所述上末端在第一方向上的延伸，所述第一方向与所述主体部所在的直线具有第一预定夹角，所述第一预定夹角介于三十度至一百五十度之间。
  13. 根据权利要求12所述的液晶显示装置，其中
    所述第一弯折部的末端具有扣合部，所述扣合部与所述背板扣合。
  14. 根据权利要求11所述的液晶显示装置，其中
    所述悬挂部包括主体部和第二弯折部，所述主体部包括下末端，所述第二弯折部与所述下末端相连，所述第二弯折部的一端为所述下末端在第二方向上的延伸，所述第二方向与所述主体部所在的直线具有第二预定夹角，所述第一预定夹角介于三十度至一百五十度之间。
  15. 根据权利要求14所述的液晶显示装置，其中
    所述光学膜片的所述开孔的形状与所述第二弯折部的末端的横截面形状一致。
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