CN107479254A - A kind of backboard, backlight module and liquid crystal display device - Google Patents

A kind of backboard, backlight module and liquid crystal display device Download PDF

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Publication number
CN107479254A
CN107479254A CN201710865289.7A CN201710865289A CN107479254A CN 107479254 A CN107479254 A CN 107479254A CN 201710865289 A CN201710865289 A CN 201710865289A CN 107479254 A CN107479254 A CN 107479254A
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CN
China
Prior art keywords
backboard
liquid crystal
side plate
display device
plate
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN201710865289.7A
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Chinese (zh)
Inventor
杨晓光
马吉航
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Hisense Electronics Co Ltd
Original Assignee
Qingdao Hisense Electronics Co Ltd
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 Qingdao Hisense Electronics Co Ltd filed Critical Qingdao Hisense Electronics Co Ltd
Priority to CN201710865289.7A priority Critical patent/CN107479254A/en
Publication of CN107479254A publication Critical patent/CN107479254A/en
Priority to PCT/CN2018/080212 priority patent/WO2019056719A1/en
Priority to CN201811109772.3A priority patent/CN109031747B/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133608Direct backlight including particular frames or supporting means
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133308Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314Back frames

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

Abstract

The present invention provides a kind of backboard, backlight module and liquid crystal display device.The backboard forms bottom plate, side plate, stepped kink and hangers by integral bending mode, has stronger structural strength.The backboard that integral bending mode is formed can support each part, reduce the thickness of backlight module and liquid crystal display device, liquid crystal display device is realized Rimless.Because backlight module and liquid crystal display device no longer need fore shell, it is thus possible to save producing cost and the production time of fore shell, and then reduce production cost, improve production efficiency.The backboard that integral bending mode is formed passes through Type of Welding so that flash stitch is not present between each side plate and between each stepped kink, improves the seal of backlight module and liquid crystal display device, enters without influenceing service life because of the entrance of dust etc..

Description

A kind of backboard, backlight module and liquid crystal display device
Technical field
The present invention relates to display technology field, more particularly to a kind of backboard, backlight module and liquid crystal display device.
Background technology
At present, existing liquid crystal display device mainly includes liquid crystal panel and the backlight of display light source is provided to liquid crystal panel Module.Liquid crystal panel generally use fore shell is fixed, and has been consequently formed frame type liquid crystal display device and boundless frame liquid crystal display Device.With the raising that user requires for visual experience, boundless frame liquid crystal display device is gradually expanded.
Accompanying drawing 1 is a kind of structural representation of common boundless frame liquid crystal display device in correlation technique.Can by accompanying drawing 1 Know, the liquid crystal display device includes liquid crystal panel 01, backboard 02, diaphragm 03, light guide plate 04 and positioned at liquid crystal panel 01, backboard 02nd, diaphragm 03, the fore shell 05 of the end of light guide plate 04.The mode of the end generally use mounting of diaphragm 03 is arranged on fore shell 05. Backboard 02 is the base arrangement of boundless frame liquid crystal display device, for other building blocks of the grade of support light guide plate 04.Fore shell 05 For the side structure of boundless frame liquid crystal display device, the end for other building blocks such as support liquid crystal panel 01, diaphragms 03 Portion.The end set of backboard 02 is in the bottom of fore shell 05, and thus, backboard 02 and fore shell 05 form boundless frame liquid crystal display device Similar box-packed semi-closed structure.
In boundless frame liquid crystal display device shown in accompanying drawing 1, backboard 02 uses slab construction, and backboard 02 and fore shell 05 Between using connecting method assemble.It is no to need corresponding mach moulding, thus backboard 02 because backboard 02 uses slab construction Structural strength it is relatively low, cause liquid crystal display device in use it occur frequently that screen bending the problem of.In addition, backboard 02 and fore shell 05 generally passes through adhesive bond.Because the viscosity of binding agent is vulnerable to the influence of temperature, humidity and usage time etc., thus Binding agent it is sticky unstable, between backboard 02 and fore shell 05 may depart from, cause the structural strength of liquid crystal display device It is relatively low.Furthermore the liquid crystal display device after backboard 02 and the easy assembling of fore shell 05 is assembled by connecting method and flash stitch be present Problem, cause the disqualification rate of liquid crystal display device higher.
The content of the invention
The present invention provides a kind of backboard, backlight module and liquid crystal display device, to solve available liquid crystal display device structure The problem of intensity is relatively low.
In a first aspect, the present invention provides a kind of backboard, the backboard includes:
Bottom plate, positioned at the side plate of the bottom plate surrounding, and the stepped kink at the top of the side plate;The bottom Plate, the side plate and the stepped kink one bending and molding;
The bottom plate and the side plate surround open-topped cavity structure;
The stepped kink includes the first step being bent to form from the top of the side plate to the cavity direction And the second step being connected with the first step;Wherein, the second step is less than the first step;
The first step is connected with the second step by the first connecting plate;
The first step is used to support liquid crystal panel, and the second step is used to support diaphragm.
Second aspect, the present invention provide a kind of backlight module, and the backlight module includes diaphragm, light guide plate and first aspect In backboard.
The third aspect, the present invention provide a kind of liquid crystal display device, and the liquid crystal display device includes liquid crystal panel and the Backboard in one side, the liquid crystal panel are located on the backboard.
The technical scheme that embodiments of the invention provide can include the following benefits:
The present invention provides a kind of backboard, backlight module and liquid crystal display device.The backboard includes bottom plate, positioned at bottom plate surrounding Side plate, and the stepped kink at the top of side plate.The edge of bottom plate is by being bent to form positioned at the side of bottom plate surrounding Plate, and then bottom plate and side plate surround open-topped cavity structure.Continue to be bent from the top of side plate to cavity direction, and then shape Into the first step and second step of double-layer structure.Wherein, first step is connected with second step by the first connecting plate, and second Step is less than first step.Second step is used to support diaphragm, and first step is used to support liquid crystal panel.Due to bottom plate, side plate Included and stepped kink is molded by integral wrap direction, in bending process and the bending process such as punching press carried out to backboard, Therefore the elaboration power in forming process causes the structural strength of backboard to strengthen.Meanwhile the stepped bending with double-decker Portion causes the structural strength of backboard further to strengthen.Because the structural strength of backboard strengthens, so that liquid crystal display device has There is higher structural strength.Further, since the reinforcement of back board structure intensity, the thickness of the backboard used in of the invention is relative to existing The thickness for having backboard reduces, and this causes liquid crystal display device that Bao Tihua is presented.Furthermore because backboard is integrally formed, abandon original The splicing construction of fore shell and backboard, corresponding flash stitch problem disappear therewith.
It should be appreciated that the general description and following detailed description of the above are only exemplary and explanatory, not Can the limitation present invention.
Brief description of the drawings
Accompanying drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the present invention Example, and for explaining principle of the invention together with specification.
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, for those of ordinary skill in the art Speech, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structural representation of common boundless frame liquid crystal display device in correlation technique;
Fig. 2 is the dimensional structure diagram of the first backboard provided in an embodiment of the present invention;
Fig. 3 is the sectional view at A-A in Fig. 2 provided in an embodiment of the present invention;
Fig. 4 is the structural representation of liquid crystal display device provided in an embodiment of the present invention;
Fig. 5 is the structural representation of the first hangers provided in an embodiment of the present invention;
Fig. 6 is the structural representation of the second hangers provided in an embodiment of the present invention;
Fig. 7 is the structural representation of second of backboard provided in an embodiment of the present invention;
Fig. 8 is the mplifying structure schematic diagram after the first backboard provided in an embodiment of the present invention welding;
Fig. 9 is the mplifying structure schematic diagram after second of backboard provided in an embodiment of the present invention welding.
Embodiment
Here exemplary embodiment will be illustrated in detail, its example is illustrated in the accompanying drawings.Following description is related to During accompanying drawing, unless otherwise indicated, the same numbers in different accompanying drawings represent same or analogous key element.Following exemplary embodiment Described in embodiment do not represent and the consistent all embodiments of the present invention.On the contrary, they be only with it is such as appended The example of the consistent apparatus and method of some aspects being described in detail in claims, of the invention.
Backboard is the base arrangement of liquid crystal display device, is mainly used in supporting the parts such as light guide plate, liquid crystal panel.Existing Correlation technique in, liquid crystal display device also includes fore shell.Fore shell can not only the part such as support diaphragm and liquid crystal panel, and And the parts such as diaphragm and liquid crystal panel can also be surrounded, to form the side structure of liquid crystal display device.As base arrangement Backboard and assembled as the fore shell generally use bonding way of side structure.Because the stress of fore shell acts on and is bonded gluing The reason for connecing intensity causes easily to depart between backboard and fore shell, so cause the structural strength of liquid crystal display device compared with It is low.To solve the problems, such as that available liquid crystal display device structure intensity is relatively low, the present invention provides a kind of backboard, with by the backboard just The support to parts such as light guide plate, diaphragm and liquid crystal panels can be realized, without fore shell.
As shown in accompanying drawing 2-9, backboard 2 provided by the invention includes bottom plate 21, side plate 22 and stepped kink 23, its In, bottom plate 21 is used to support light guide plate 04, and side plate 22 is used to support stepped kink 23, and stepped kink 23 is used to support Liquid crystal panel 01 and diaphragm 03.Side plate 22 is located at the surrounding of bottom plate 21, and thus, bottom plate 21 and side plate 22 surround open-topped sky Cavity 5 in cavity configuration, i.e. accompanying drawing 3.Stepped kink 23 is located at the top of side plate 22.Stepped kink 23 is included by side The top of plate 22 is bent and the first step 231 formed and the second step being connected with first step 231 to the direction of cavity 5 233.Wherein, second step 233 is less than first step 231.First step 231 and second step 233 pass through the first connecting plate 232 It is connected, and second step 233 is close to bottom plate 21.First step 231 is used to support liquid crystal panel 01, and second step 233 is used for Diaphragm 03, so as to realize support of the stepped kink 23 to diaphragm 03 and liquid crystal panel 01, it specifically refer to accompanying drawing 4.
Bottom plate 21, side plate 22 and stepped kink 23 provided by the invention are molded by integral wrap direction.Bending Mode can pass through for the edge of bottom plate 21 is bent to form the side plate 22 positioned at the surrounding of bottom plate 21, and then bottom plate 21 and side plate 22 surround Open-topped cavity structure.Continue to be bent from the top of side plate 22 to the direction of cavity 5, and then form the First of double-decker Rank 231 and second step 233.Because bottom plate 21, side plate 22 and stepped kink 23 are molded by integral wrap direction, folding Included during curved and the bending process such as punching press are carried out to backboard 2, therefore the elaboration power in forming process causes the structure of backboard 2 Intensity enhancing.Meanwhile the stepped kink 23 with double-decker causes the structural strength of backboard 2 further to strengthen.Due to The structural strength enhancing of backboard 2, so that liquid crystal display device has higher structural strength.Further, since the structure of backboard 2 The reinforcement of intensity, the thickness of the backboard 2 used in of the invention reduce relative to the thickness of existing backboard 02, and this causes liquid crystal display Bao Tihua is presented in device.
Further, because stepped kink 23 can support diaphragm 03 and liquid crystal panel 01, and side plate 22 is backboard 2 Outermost Rotating fields, thus backboard 2 can realize that fore shell 05 is used to support diaphragm 03, liquid crystal panel 01 and as outer in the prior art The function of portion's frame, thus backboard 2 provided by the invention can directly substitute the combination of prior art dorsulum 02 and fore shell 05. Liquid crystal display device i.e. provided by the invention does not need fore shell 05, has abandoned the splicing construction of original fore shell 05 and backboard 02, phase The flash stitch problem answered disappears therewith.
Backboard provided by the invention, backlight module and liquid crystal display device are specifically described below in conjunction with the accompanying drawings.
Embodiment one
Accompanying drawing 2,3 is refer to, accompanying drawing 2 shows the stereochemical structure signal of the first backboard provided in an embodiment of the present invention Figure, accompanying drawing 3 are the sectional view at A-A in accompanying drawing 2.Backboard 2 provided in an embodiment of the present invention includes bottom plate 21, side plate 22 and ladder Shape kink 23, wherein, bottom plate 21 is used to support light guide plate 04, and side plate 22 is used to support stepped kink 23, stepped curved Folding part 23 is used to support liquid crystal panel 01 and diaphragm 03.Backboard 2 provided in an embodiment of the present invention is molded by integral wrap direction, Bent on the basis of with slab construction bottom plate 21, form the side plate 22 positioned at the surrounding of bottom plate 21;Side plate 22 continues It is bent to form stepped kink 23.Because side plate 22 is located at the surrounding of bottom plate 21, thus, bottom plate 21 and side plate 22 surround top Cavity 5 in the cavity structure of opening, i.e. accompanying drawing 3.Stepped kink 23 is located at the top of side plate 22, and stepped kink 23 are bent to form first step 231 from the top of side plate 22 to the direction of cavity 5, and from the end of first step 231 to bottom plate 21 Direction is bent to form second step 233.Due to stepped kink 23 from the top of side plate 22 to the direction of cavity 5 bend, thus, Side plate 22 forms the structure type around stepped kink 23, and now side plate 22 forms the outermost Rotating fields of backboard 2, backboard 2 Regular integrated planar structure is seen as from formalness.
Because the gravity of the parts such as liquid crystal panel 01, diaphragm 03 and light guide plate 04 mainly acts on bottom plate 21 and side plate 22 On, thus when the angle between bottom plate 21 and side plate 22 is more than 90 °, the grade of liquid crystal panel 01 part can apply parallel to side plate 22 Horizontal applied force in bottom plate 21 and the vertical perpendicular to bottom plate 21.Side plate 22 is in horizontal applied force and perpendicular acting Easily tilted in the presence of power to the direction of bottom plate 21, stepped kink 23 can not be supported by ultimately resulting in side plate 22, and backboard 2 occurs Structure collapses.To prevent the recurring structure of backboard 2 from caving in, in embodiments of the present invention, side plate 22 is set perpendicular to bottom plate 21, so that The grade of liquid crystal panel 01 part only applies the vertical perpendicular to bottom plate 21 to side plate 22.
Further, to make stepped kink 23 that there is higher support strength, each part in stepped kink 23 Preferred arrangement is:First step 231 and second step 233 are parallel to each other, and the first connecting plate 232 is perpendicular to second step 233.Now, the alternate hierarchic structure of the stepped transverse and longitudinal of kink 23 is more firm.Further, it is higher to have backboard 2 Support strength, first step 231 is parallel to bottom plate 21, and second step 233 is perpendicular to side plate 22.
In the embodiment of the present invention, stepped kink 23 includes first step 231, the first connecting plate 232 and second step 233.First step 231 is used to support liquid crystal panel 01.First connecting plate 232 is used to connect first step 231 and second step 233.Second step 233 is used to support diaphragm 03, specifically refer to accompanying drawing 3,4.
Specifically, liquid crystal panel 01 is the display unit of liquid crystal display device, including Polarizer, glass substrate and liquid crystal Multiple parts such as material, thus there is larger weight.Again because the end of liquid crystal panel 01 is located at first step 231, thus The middle part of liquid crystal panel 01 may deform because weight is larger.To enable first step 231 to support liquid crystal surface Plate 01, and prevent liquid crystal panel 01 from deforming, first step 231 should have enough width h1.If but first step 231 Width h1 is wide, then causes the wider width of liquid crystal display device.The increase of liquid crystal display device width can cause production cost Increase, while the visual experience of user can be also reduced, thus, the width h1 of first step 231 should have suitable width.Diaphragm The problem of 03 weight is smaller, and second step 233 will not deform upon when supporting diaphragm 03, thus the width of second step 233 Degree h2 meets that diaphragm 03 can be supported.In embodiments of the present invention, on the basis of the width h2 of second step 233, preferably The width h1 of first step 231 is set as 2-4 times of the width h2 of second step 233, to meet that first step 231 supports liquid crystal respectively Panel 01, second step 233 support the width demand of diaphragm 03.
Because second step 233 is used to support diaphragm 03, therefore, to make energy between first step 231 and second step 233 Diaphragm 03 is enough placed, the spacing between first step 231 and second step 233 is more than or equal to the thickness of diaphragm 03.Specially: Spacing between the upper surface of second step 233 and the lower surface of first step 231 is more than or equal to the thickness of diaphragm 03.Work as liquid crystal surface When being additionally provided with miscellaneous part between plate 01 and diaphragm 03, the spacing between first step 231 and second step 233 is more than diaphragm 03 Thickness.When being not provided with miscellaneous part between liquid crystal panel 01 and diaphragm 03, between first step 231 and second step 233 Spacing can be equal to diaphragm 03 thickness.
In addition, stepped kink 23 is located at the inside of cavity 5, and certain space is occupied, if stepped kink 23 Spacing between bottom plate 21 is smaller, then should not set light guide plate 04.Therefore, for make on bottom plate 21 set light guide plate 04, second Spacing between step 233 and bottom plate 21 is more than or equal to the thickness of light guide plate 04.More specifically, the following table of second step 233 Spacing between face and the upper surface of bottom plate 21 is more than or equal to the thickness of light guide plate 04.
In embodiments of the present invention, the fixed form of diaphragm 03 is that bolt twist-on or hangers mount.When diaphragm 03 passes through spiral shell When bolt twist-on mode realizes fixed, it is bolted on second step 233 or on the first connecting plate 232.When diaphragm 03 is logical Hangers mounting mode is crossed when realizing fixed, first connecting plate 232 that is set by of the position of diaphragm 03 is realized.That is the first connecting plate On the 232 or junction of the connecting plate 232 of first step 231 and first sets dead slot, and has hangers on second step 233, and Hangers is located in dead slot.Described respectively in the first connecting plate 232 and in first step 231 and with following two specific embodiments The junction of one connecting plate 232 sets the situation of dead slot.
Specifically, accompanying drawing 5 is refer to, accompanying drawing 5 shows the structural representation of the first hangers in the embodiment of the present invention.By attached Fig. 5 understands that the junction between the first connecting plate 232 and first step 231 is provided with the first dead slot 91.On second step 233 The first hangers 81 of fixed diaphragm 03 is provided with, and the first hangers 81 is located in the first dead slot 91.For reduce space hold, first Hangers 81 and the first connecting plate 232 are in the same plane, and the first hangers 81 is located at the connecting plate of second step 233 and first 232 junction.To make diaphragm 03 not come off from the first hangers 81, the first hangers 81 extends to the direction of first step 231.Together When, space is left between the top of the first hangers 81 and the lower surface of first step 231, so that diaphragm 03 can hang over first On hangers 81.For diaphragm 03 is hung on the first hangers 81 from different orientation, the first connecting plate 232 and first step 231 it Between junction multiple first dead slots 91 are set, accordingly, multiple first hangers 81 are set on first step 231.
Accompanying drawing 6 is refer to, accompanying drawing 6 shows the structural representation of the second hangers in the embodiment of the present invention.Can by accompanying drawing 6 Know, the second dead slot 92 is provided with the first connecting plate 232.The second hangers 82 of fixed diaphragm 03 is provided with second step 233, And second hangers 82 be located in the second dead slot 92.To reduce space hold, the second hangers 82 is with the first connecting plate 232 positioned at same In plane, and the second hangers 82 is located at the junction of the connecting plate 232 of second step 233 and first.Likewise, to make diaphragm 03 not Come off from the second hangers 82, the second hangers 82 extends to the direction of first step 231.Meanwhile second hangers 82 top and the Space is left between the lower surface of one step 231, so that diaphragm 03 can be hung on the second hangers 82.For from different orientation Diaphragm 03 is hung on the second hangers 82, multiple second dead slots 92, accordingly, second step are provided with the first connecting plate 232 Multiple second hangers 82 are set on 233.
Above-described embodiment is only that the embodiment of the present invention provides two kinds of hanger structures, on the basis of backboard 2 provided by the invention On, realize remaining mode of mounting diaphragm 03 also within protection scope of the present invention by stepped kink 23.The present invention The molding mode of hangers that embodiment provides is:It is molded on stepped kink 23 by modes such as punching press or shearings;Or Stamp out the shape of hangers before 2 integral bending of backboard in advance, and then hangers passes through from second step 233 to first step 231 The mode of direction bending is molded.There is larger processing due to being initially formed the mode for being stamped and formed out hangers after stepped kink 23 Difficulty, thus hangers is preferably formed in the embodiment of the present invention by the way of first punching press is bent again, to shorten process time.
Embodiment two
Accompanying drawing 7 is refer to, accompanying drawing 7 shows the structural representation of second of backboard provided in an embodiment of the present invention. On the basis of a kind of backboard, in second of backboard provided in an embodiment of the present invention, stepped kink 23 also includes the second connecting plate 234.The both ends of second connecting plate 234 connect the top of first step 231 and side plate 22 respectively, to realize side plate 22 and stepped The connection of kink 23.Second connecting plate 234 is parallel with side plate 22, thus the second connecting plate 234 is above first step 231. When second connecting plate 234 is connected with the top of side plate 22, the junction of the second connecting plate 234 and side plate 22 is arc or plane Shape.
Because first step 231 is used to support liquid crystal panel 01, thus the end of liquid crystal panel 01 is located at the second connecting plate 234 close to the side of the first connecting plate 232, the i.e. inner side positioned at backboard 2.When the height of the second connecting plate 234 is less than liquid crystal surface During the thickness of plate 01, the part of liquid crystal panel 01 leakage, now liquid crystal panel 01 easily in carrying or parking period because collision by Damage.To avoid liquid crystal panel 01 impaired, the height of the second connecting plate 234 is more than or equal to the thickness of liquid crystal panel 01.
In above-described embodiment provided by the invention, backboard 2 shows bottom plate 21, side plate 22 by way of integrally bending With the structure of stepped kink 23.Specifically, backboard 2 is initially smooth planar structure, is formed after being bent by first time The structure type of bottom plate 21 and side plate 22.As preferable, backboard 2 first time 90-degree bent.Side plate 22 continues to bend, to be formed The structure of stepped kink 23.The technology assembled relative to Mr.'s postpartum of existing correlation technique dorsulum 02 and fore shell 05, Backboard 2 provided in an embodiment of the present invention is formed by integral bending mode, can significantly shorten the production time, improves production effect Rate.
Further, because backboard 2 uses integral bending form to realize, thus adjacent two side plates 22 and two ladders There can be gap between shape kink 23, cause dust etc. to enter inside backboard 2.To avoid the occurrence of gap, the one bending of backboard 2 After formation, the seam between two adjacent side plates 22 and adjacent two stepped kinks 23 is eliminated by welding manner Gap, and then improve globality, closure and the structural strength of backboard 2.As Figure 8,9, accompanying drawing 8,9 is I in accompanying drawing 2 The top view at place, only it is that structure type is different after two neighboring stepped kink 23 welds.Specifically, adjacent two in accompanying drawing 8 After individual stepped kink 23 welds, the weld of two first steps 231 is rendered as the yi word pattern of horizontal direction.In accompanying drawing 9 After two neighboring stepped kink 23 welds, the weld of two first steps 231 is rendered as tilting 45 ° of yi word pattern.
Because backboard 2 provided in an embodiment of the present invention is molded by integral wrap direction, included in bending process to backboard 2 The bending process such as punching press are carried out, therefore the elaboration power in forming process causes the structural strength of backboard 2 to strengthen.Meanwhile have The stepped kink 23 of double-decker causes the structural strength of backboard 2 further to strengthen.Because the structural strength of backboard 2 increases By force, so that liquid crystal display device has higher structural strength.Further, since the reinforcement of the structural strength of backboard 2, the present invention The thickness of the middle backboard 2 used reduces relative to the thickness of existing backboard 02, and this causes liquid crystal display device that Bao Tihua is presented.
The embodiment of the present invention also provides a kind of backlight module, refer to accompanying drawing 4.The backlight module includes diaphragm 03, leaded light Plate 04 and backboard provided in an embodiment of the present invention 2.In the backlight module, diaphragm 03 is arranged on stepped curved in backboard 2 On folding part 23, the specific setting of diaphragm 03 refer to above-described embodiment, and here is omitted.Light guide plate 04 is placed in backboard 2 Bottom plate 21 on.It is located at the end of light guide plate 04 for the further structural strength of increase backboard 2 when in use, second step 233 Top, so that light guide plate 04 supports stepped kink 23.Bottom plate 21, side plate 22 and stepped kink 23 form one and half The cavity structure of closing, such as the semiclosed cavity 6 in accompanying drawing 4.When setting light guide plate 04 on bottom plate 21, light guide plate 04 is positioned at half In closed cavity 6.To prevent light guide plate 04 from being rocked in semiclosed cavity 6, the end of light guide plate 04 needs to be against on side plate 22. However, when the end of light guide plate 04 is against on side plate 22, the part light guide plate 04 in semiclosed cavity 6 does not play it Effect, this causes the portion of material of light guide plate 04 to waste.To save production cost, silicon is set between bottom plate 21 and second step 233 Rubber cushion 7, silicagel pad 7 are fixed between bottom plate 21 and second step 233 by its elastic acting force, and light guide plate 04 is placed on silica gel The inner side of pad 7, it can prevent because of damaged in collision light guide plate 04 when light guide plate 04 from entering between bottom plate 21 and stepped kink 23, it is real Now to the fixation of light guide plate 04.
The embodiment of the present invention also provides a kind of liquid crystal display device, and the liquid crystal display device includes liquid crystal panel 01 and Ben Fa The backboard 2 that bright embodiment provides.Liquid crystal panel 01 is arranged on backboard 2.Specifically, the end of liquid crystal panel 01 by bonding or The mode directly placed is arranged on first step 231.
In liquid crystal display device provided in an embodiment of the present invention, shell and supporting part of the backboard 2 as liquid crystal display device Part, the producing cost of fore shell 05 in existing correlation technique can be greatlyd save, reduces cost.Diaphragm 03 and light guide plate 04 etc. are all provided with Put inside backboard 2, and liquid crystal panel 01 is located at the surface of backboard 2, therefore liquid crystal display device only portion in terms of formalness Divide side, i.e. side plate 22.Because side plate 22 only occupies a small amount of space, thus liquid crystal display device is rendered as boundless closed-in construction.
The embodiment of the present invention provides the backboard 2 of two kinds of different structures, when liquid crystal panel 01 is located at the surface of backboard 2, liquid Existential Space (such as accompanying drawing 3) or gap (such as accompanying drawing 7) between crystal panel 01 and side plate 22.To eliminate liquid crystal panel 01 and side plate 22 Between Existential Space or gap, realize that integral structure, liquid crystal panel 01 and side plate is presented from mode of appearance in liquid crystal display device Space or gap between 22 pass through bonded adhesives or solidification glue sticking.When between liquid crystal panel 01 and side plate 22 by bonded adhesives or After solidifying glue sticking, due to being connected between each side plate 22 in backboard 2 and between each stepped kink 23 by welding manner, Thus sealed between backboard 2 and liquid crystal panel 01, the fine impurities such as dust will not enter liquid crystal display device inside, enter without Influence the life-span of liquid crystal display device.
Those skilled in the art will readily occur to the present invention its after considering specification and putting into practice the disclosure invented here Its embodiment.The application be intended to the present invention any modification, purposes or adaptations, these modifications, purposes or Person's adaptations follow the general principle of the present invention and including undocumented common knowledges in the art of the invention Or conventional techniques.Description and embodiments are considered only as exemplary, and true scope and spirit of the invention are by following Claim is pointed out.
It should be appreciated that the relational terms of such as " first " and " second " or the like be used merely to an entity or Operation makes a distinction with another entity or operation, and not necessarily requires or imply these entities or exist between operating any This actual relation or order.The invention is not limited in the precision architecture for being described above and being shown in the drawings, And various modifications and changes can be being carried out without departing from the scope.The scope of the present invention is only limited by appended claim System.

Claims (10)

1. a kind of backboard, it is characterised in that the backboard includes:
Bottom plate, positioned at the side plate of the bottom plate surrounding, and the stepped kink at the top of the side plate;The bottom plate, The side plate and the stepped kink one bending and molding;
The bottom plate and the side plate surround open-topped cavity structure;
The stepped kink include first step from the top of the side plate to the cavity direction that be bent to form from and The second step being connected with the first step;Wherein, the second step is less than the first step;
The first step is connected with the second step by the first connecting plate;
The first step is used to support liquid crystal panel, and the second step is used to support diaphragm.
2. backboard according to claim 1, it is characterised in that the first step width is the second step width 2-4 times;
Spacing between the first step and the second step is more than or equal to the thickness of the diaphragm;
Spacing between the second step and the bottom plate is more than or equal to the thickness of light guide plate.
3. backboard according to claim 1, it is characterised in that on first connecting plate, or the first step and institute The junction for stating the first connecting plate sets dead slot;
There is hangers, and the hangers is located in the dead slot on the second step;
The hangers extends to the first step direction;
Space is left between the top of the hangers and the lower surface of the first step.
4. backboard according to claim 3, it is characterised in that the hangers is from the second step to the first step Direction bending forming.
5. backboard according to claim 1, it is characterised in that the side plate is perpendicular to the bottom plate, the first step Parallel to the second step.
6. backboard according to claim 5, it is characterised in that first connecting plate is perpendicular to the second step, institute Second step is stated parallel to the bottom plate.
7. according to the backboard described in any one in claim 1-6, it is characterised in that the stepped kink also includes the Two connecting plates;
The both ends of second connecting plate connect the top of the first step and the side plate respectively;
Second connecting plate is parallel with the side plate;
The height of second connecting plate is more than or equal to the thickness of the liquid crystal panel.
8. backboard according to claim 7, it is characterised in that by being welded to connect between the two neighboring side plate, phase By being welded to connect between adjacent two first steps.
9. a kind of backlight module, it is characterised in that the backlight module includes any in diaphragm, light guide plate and claim 1-8 Backboard described in one.
10. a kind of liquid crystal display device, it is characterised in that the liquid crystal display device includes liquid crystal panel and claim 1-8 Backboard described in middle any one, the liquid crystal panel are located on the backboard.
CN201710865289.7A 2017-09-22 2017-09-22 A kind of backboard, backlight module and liquid crystal display device Pending CN107479254A (en)

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PCT/CN2018/080212 WO2019056719A1 (en) 2017-09-22 2018-03-23 Backlight module and liquid crystal display device
CN201811109772.3A CN109031747B (en) 2017-09-22 2018-09-21 Backlight module and liquid crystal display device

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