CN105807486A - Edge-lit backlight module and display device - Google Patents

Edge-lit backlight module and display device Download PDF

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Publication number
CN105807486A
CN105807486A CN201610136669.2A CN201610136669A CN105807486A CN 105807486 A CN105807486 A CN 105807486A CN 201610136669 A CN201610136669 A CN 201610136669A CN 105807486 A CN105807486 A CN 105807486A
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CN
China
Prior art keywords
guide plate
light guide
keeper
posting
back module
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.)
Granted
Application number
CN201610136669.2A
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Chinese (zh)
Other versions
CN105807486B (en
Inventor
邱婧雯
高上
曹晓梅
杨洲
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.)
Hisense Visual Technology Co Ltd
Original Assignee
Qingdao Hisense Electronics Co Ltd
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Priority to CN201610136669.2A priority Critical patent/CN105807486B/en
Publication of CN105807486A publication Critical patent/CN105807486A/en
Application granted granted Critical
Publication of CN105807486B publication Critical patent/CN105807486B/en
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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
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133615Edge-illuminating devices, i.e. illuminating from the side
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011Light 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
    • G02B6/0066Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068Arrangements of plural sources, e.g. multi-colour light sources
    • 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
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • G02F1/133607Direct 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

Abstract

Th embodiment of the invention provides an edge-lit backlight module and a display device, and relates to the technical field of display devices. The problem that in the prior art, when a light guide plate is heated and then expands, the distance between the light guide plate and a light bar is changed to influence uniformity of light emission or even damage the light bar is solved. The edge-lit backlight module comprises a backing plate, the light guide plate and the light bar are arranged on the backing plate, the light bar is located on the light-in side of the light guide plate, a first positioning structure is arranged on the side, opposite to the light-in side, of the light guide plate and comprises a positioning part and a positioning frame, the positioning frame is fixed relative to the backing plate, one side of the positioning plate is fixedly connected with the light guide plate, the other side of the positioning part is matched with the positioning frame, the positioning frame can limit the positioning part to move in the direction perpendicular to the light-out surface of the light guide plate, and when the light guide plate is heated and then expands, the light guide plate can push the positioning part to move in the direction of the positioning frame. The edge-lit backlight module and the display device are used for protecting the light bar of the display device and ensure the uniformity of light emission.

Description

A kind of side entrance back module and display device
Technical field
The present invention relates to the technical field of display device, particularly relate to a kind of side entrance back module and display device.
Background technology
Development along with science and technology, improving constantly of people's living standard, television set, computer etc. have come in huge numbers of families with the product of display device, due to liquid crystal indicator possess that image definition height, fuselage be frivolous, long service life, environmental protection and energy saving and to plurality of advantages such as the stimulation of human eye are less, it has also become the increasing user primary selection when purchasing.
For reducing the thickness of the backlight module entirety of liquid crystal indicator, available liquid crystal display device many employings side goes out the form of light provides backlight, light guide plate to be the critical elements in the backlight module of liquid crystal indicator for liquid crystal panel.At present, the material of light guide plate mostly is glass or PMMA (polymethyl methacrylate, it is commonly called as " lucite "), but owing to shock resistance and the processing characteristics of glass material are poor, during the structures such as processing equipotential hole, chamfering, easily make glass light guide plate produce slight crack, bring huge difficulty to processing technique.Therefore, the material major part of the light guide plate that current liquid crystal indicator uses is PMMA, and its material cost is relatively low and processing characteristics is good many compared to glass.But, the thermal coefficient of expansion of PMMA material is relatively larger, can only use when temperature is lower than 80 DEG C (degree Celsius), temperature is higher than 80 DEG C, and PMMA material can seriously be heated, and causes that deformation is serious, the distance between light guide plate and lamp bar is made to change, thus changing whole module light-emitting uniformity.If deformation quantity is bigger, the situation of extruding lamp bar can be caused even, make lamp bar impaired, it is impossible to normally to use.
When lamp bar luminescence, light guide plate incident side is because being heated and can being deformed.As it is shown in figure 1, the both sides due to current light guide plate 01 and the side away from incident side are fixed by locating dowel 02, light guide plate 01 is fixedly installed two pieces of positioning rubber blocks 03 away from the side of incident side, plays the effect of protection light guide plate 01.Light guide plate 01 is heated and produces the headspace of deformation, locating dowel 02 determine with the headspace positioning hole 011 on light guide plate 01 and tolerance, if the headspace in hole 011, location or tolerance are too big, locating dowel 02 does not just have the effect of lightguide plate fixing 01;If tolerance is too little, can do not hold any more again the deformation of light guide plate 01, deformation quantity can cause that the spacing between conduit version 01 and lamp bar 04 changes, affect the light-emitting uniformity of backlight module, if also can cause more greatly the extruding of light guide plate 01 and lamp bar 04 even to damage lamp bar 04.
Summary of the invention
Embodiments of the invention provide a kind of side entrance back module and display device, this side entrance back module will not change the distance between light guide plate and lamp bar after light guide plate expanded by heating, avoid press on even damage lamp bar, and ensure that the light-emitting uniformity of this display device.
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
A kind of side entrance back module, including backboard, described backboard is provided with light guide plate and lamp bar, described lamp bar is positioned at the incident side of described light guide plate, the side relative with the incident side of described light guide plate is provided with the first location structure, described first location structure includes keeper and posting, described posting is fixed relative to described backboard, the side of described keeper is fixing with described light guide plate to be connected, opposite side coordinates with described posting, described posting can limit the direction of the exiting surface that described keeper edge is perpendicular to described light guide plate and move, when described light guide plate expanded by heating, described light guide plate can promote described keeper to move to the direction of described posting.
Embodiments of the invention also provide for a kind of display device, and this display device includes side entrance back module as above.
Compared to prior art, in the side entrance back module of embodiment of the present invention offer and display device, the side of keeper coordinates with posting, posting can limit the direction of the exiting surface that keeper edge is perpendicular to light guide plate and move, and then making the light guide plate being fixedly connected on keeper side can not produce the movement in the direction along the exiting surface being perpendicular to light guide plate, it is to avoid light guide plate produces to rock.At light guide plate when expanded by heating, light guide plate can promote keeper to move to the direction of posting, deformation during light guide plate expanded by heating is moved along the direction deviating from lamp bar place, thus do not have the problem of the light-emitting uniformity affecting backlight module, without occurring that the situation of macrolesion lamp bar is crossed in deformation.Adopt the structure that keeper coordinates with posting that light guide plate is fixed, both do not result in headspace and cross the problem that ambassador's light guide plate produces to rock, the extruding even mutually that changes with the distance of lamp bar when it also avoid light guide plate temperature distortion even damages the situation of lamp bar to be occurred, and ensure that the light-emitting uniformity of backlight module.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The assembling figure of the side entrance back module that Fig. 1 provides for prior art;
The assembling figure of a kind of side entrance back module that Fig. 2 provides for the embodiment of the present invention;
The sectional view of a kind of side entrance back module that Fig. 3 provides for the embodiment of the present invention, wherein light guide plate is not heated;
The sectional view of a kind of side entrance back module that Fig. 4 provides for the embodiment of the present invention, wherein light guide plate expanded by heating promotes keeper to move to the direction of posting;
The front view of the keeper of a kind of side entrance back module that Fig. 5 provides for the embodiment of the present invention, wherein the opening of keeper is " V "-shaped;
The sectional view of the first location structure of a kind of side entrance back module that Fig. 6 provides for the embodiment of the present invention, wherein keeper is provided with the side of opening and is extruded contraction.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
In describing the invention, it will be appreciated that, orientation or the position relationship of the instruction such as term " " center ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward " be based on orientation shown in the drawings or position relationship; be for only for ease of the description present invention and simplifying and describe; rather than instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
In describing the invention, it is necessary to explanation, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or connect integratedly;Can be mechanically connected;Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be the connection of two element internals.For the ordinary skill in the art, it is possible to concrete condition understands above-mentioned term concrete meaning in the present invention.
Liquid crystal indicator is to add voltage in the liquid crystal between two glass, is changed by molecules align and tortuous change carrys out reproduced picture, and screen manufactures picture by the collision of electronic population, and forms picture by the perspective reflection of extraneous light.Liquid crystal must be luminous by extra light source ability.
Backlight display device is divided can be divided into by the incoming position of light source: straight-down negative and the big class of side entering type two.Side entering type display device is owing to by backlight side, the volume of display device particularly thickness can significantly reduce.
A kind of side entrance back module that the embodiment of the present invention provides, as shown in Figures 2 to 4, including backboard 1, backboard 1 is provided with light guide plate 2 and lamp bar 3, lamp bar 3 is positioned at the incident side of light guide plate 2, the side relative with the incident side of light guide plate 2 is provided with the first location structure 4, first location structure 4 includes keeper 41 and posting 42, posting 42 is fixed relative to backboard 1, the side of keeper 41 is fixing with light guide plate 2 to be connected, opposite side coordinates with posting 42, posting 42 can limit keeper 41 and move along the direction of the exiting surface being perpendicular to light guide plate 2, when light guide plate 2 expanded by heating, light guide plate 2 can promote keeper 41 to move to the direction of posting 42.
Compared to prior art, in the side entrance back module that the embodiment of the present invention provides, the side of keeper 41 coordinates with posting 42, posting 42 can limit keeper 41 and move along the direction of the exiting surface being perpendicular to light guide plate 2, and then making the light guide plate 2 being fixedly connected on keeper 41 side can not produce the movement in the direction along the exiting surface being perpendicular to light guide plate 2, it is to avoid light guide plate 2 produces to rock.At light guide plate 2 when expanded by heating, light guide plate 2 can promote keeper 41 to move to the direction of posting 42, deformation during light guide plate 2 expanded by heating is moved along the direction deviating from lamp bar 3 place, thus do not have the problem of the light-emitting uniformity affecting backlight module, without occurring that the situation of macrolesion lamp bar 3 is crossed in deformation.Adopt the structure that keeper 41 coordinates with posting 42 that light guide plate 2 is fixed, both do not result in headspace and cross the problem that ambassador's light guide plate 2 produces to rock, the extruding even mutually that changes with the distance of lamp bar 3 when it also avoid light guide plate 2 temperature distortion even damages the situation of lamp bar 3 to be occurred, and ensure that the light-emitting uniformity of backlight module.
Specifically, as shown in Fig. 3, Fig. 4 and Fig. 6, posting 42 includes gathering sill 421, the notch of gathering sill 421 is towards light guide plate 2, keeper 41 is provided with opening away from the side of light guide plate 2, opening is towards gathering sill 421, and keeper 41 is provided with the side of opening and stretches in gathering sill 421 and be directed to inwall 422 extruding of groove 421 and shrink.After keeper 41 is provided with in the gathering sill 421 of the side entrance posting 42 of opening, opening portion is positioned the inwall 422 of the gathering sill 421 of frame 42 and extrudes thus producing outside tension force, keeper 41 is made to be fixed in the gathering sill 421 of this posting 42, the frictional force between the inwall 422 of the tension force of keeper 41 opening and the gathering sill 421 of keeper 41 and posting 42 is utilized to fix light guide plate 2, thus limiting light guide plate 2 to produce the movement in the direction along the exiting surface being perpendicular to light guide plate 2, it is to avoid light guide plate 2 produces to rock.Simultaneously, can feeding space owing to having between side relative with the incident side of light guide plate 2 on light guide plate 2 and the first location structure 4, therefore during light guide plate 2 expanded by heating, light guide plate 2 can promote keeper 41 to move to the direction of posting 42, thus deformation when avoiding light guide plate 2 expanded by heating has influence on the problem of the light-emitting uniformity of backlight module towards lamp bar 3, without occurring that the situation of macrolesion lamp bar 3 is crossed in deformation.
In order to guarantee light guide plate 2, after expanded by heating, its deformation can towards posting 42, as in figure 2 it is shown, both sides adjacent with incident side on light guide plate 2 are connected respectively through fixed structure 5 is fixing with backboard 1, fixed structure 5 is arranged near the incident side of light guide plate 2.When light guide plate 2 is heated generation deformation, light guide plate 2 is divided into two parts along the line of both sides fixed structure by fixed structure 5, near its incident side partially due to small volume, it is not likely to produce deformation or deformation quantity is less, will not produce to affect on light-emitting uniformity, and a part for the incident side away from light guide plate 2, owing to it can move to the direction of posting 42 away from the side of incident side, therefore, the deformation that light guide plate 2 expanded by heating produces can be directed away from the direction of the incident side of light guide plate 2.
Specifically, as in figure 2 it is shown, fixed structure 5 includes the locating slot 51 being arranged at light guide plate 2 both sides, and being arranged at the locating dowel 52 on backboard 1, locating slot 51 coordinates clamping with locating dowel 52.Locating slot 51 and locating dowel 52 is adopted to coordinate clamping the both sides of light guide plate 2 and backboard 1 to be fixed, simple in construction, easy for installation, and maintenance replacing difficulty is low.
For reducing production difficulty and production cost, as shown in Figure 5 and Figure 6, keeper 41 is " V "-shaped away from the opening of the side of light guide plate 2.After keeper 41 is provided with in the gathering sill 421 of the side entrance posting 42 of " V " font opening, two inwalls 422 being directed to groove 421 extrude so that the opening angle of " V " font opening is by θ1It is decreased to θ2, the opening angle of " V " font opening produces tension force and frictional force in the process be extruded reduction, thus being fixed by light guide plate 2, and when opening is " V "-shaped, production and the manufacture difficulty of keeper 41 are minimum, and materials are relatively economized, and have saved production cost.
For guaranteeing that the first location structure 4 can enable again light guide plate 2 promote keeper 41 to move to the direction of posting 42 when expanded by heating by fixing for light guide plate 2, constitute the angle theta between two limits of " V " font1Angular range be 37 °~150 °.Constitute the angle theta between two limits of " V " font1nullDuring less than 37 °,The opening angle of keeper 41 is less,For enabling the inwall of posting 42 to extrude keeper 41,Spacing between two inwalls 422 of the gathering sill 421 of posting 42 also can be less,Now,The process that the light guide plate 2 being arranged in posting 42 produces deformation at expanded by heating may contact with the inwall 422 of gathering sill 421 thus producing friction,This makes light guide plate 2 produce deformation after expanded by heating,Promote in the process that keeper 41 moves to posting 42,Not only to overcome the friction between the inwall 422 of keeper 41 and gathering sill 421,Also need to the friction overcome between the inwall 422 of light guide plate 2 and gathering sill 421,If light guide plate 2 produces deformation after expanded by heating,The power promoting keeper 41 is not enough to overcome the two frictional force sum,Can cause that the deformation of light guide plate 2 is towards its incident side;And spacing between two inwalls 422 of gathering sill 421 is too small that light guide plate 2 even can be made to produce to cannot be introduced in posting 42 in the process of deformation at expanded by heating, thus causing that the deformation of light guide plate 2 is towards its incident side 21.The deformation of light guide plate 2 makes the distance between the incident side 21 of light guide plate 2 and lamp bar 3 reduce towards its incident side, thus affecting the light-emitting uniformity of backlight module, when the deformation of light guide plate 2 is serious, it is also possible to extruding is damage lamp bar 3 even.Constitute the angle theta between two limits of " V " font1During more than 150 °, the opening angle of keeper 41 is excessive, if now the spacing between two inwalls 422 of gathering sill 421 is smaller, then can cause that the frictional force between keeper 41 and posting 42 is relatively big, after being unfavorable for light guide plate 2 expanded by heating, promote the keeper 41 motion to posting 42;If but it is directed to spacing between two inwalls 422 of groove 421 when arranging bigger, and the thickness of backlight module can be increased, the aesthetic appearance degree of product reduces.
Further, when guaranteeing that the first location structure 4 can make the light guide plate 2 of expanded by heating promote keeper 41 to move to posting 42, less for the thickness making backlight module, constitute the angle theta between two limits of " V " font1Angular range be 45 °~90 °.Constitute the angle theta between two limits of " V " font1During for acute angle or right angle, the spacing between two inwalls 422 of gathering sill 421 is little, it is simple to the control to backlight module thickness.And the angle theta between two limits constituting " V " font1During be more than or equal to 45 °, the spacing between two inwalls 422 of gathering sill 421 is enough to hold light guide plate 2 so that light guide plate 2 when expanded by heating moves to posting 42, zerofriction force between light guide plate 2 and posting 42.
For reducing the cost of manufacture of keeper 41, keeper 41 is provided with the side of opening and is made up of rubber.Quality of rubber materials is cheap, and machinability is good, and quality of rubber materials friction each other when contacting with the object of other materials is bigger, it is possible to make the fixing more firm of light guide plate 2.
nullPosting 42 coordinate with keeper 41 by fixing for light guide plate 2 be by making the mode that the frictional force between keeper 41 and posting 42 increases realize,Increase for frictional force produced after making to coordinate between keeper 41 with posting 42,Can be realized by the mode of the pressure between increase keeper 41 and posting 42,And owing to posting 42 and backboard 1 fix,After pressure between keeper 41 and posting 42 increases,If posting 42 occurs when less deformation even deformation does not occur,It is maximum that posting 42 coordinates produced frictional force to reach with keeper 41,Therefore,Metal or rigid plastics is adopted to make posting 42,It is able to ensure that after coordinating between keeper 41 with posting 42, produced frictional force is bigger,And metal or rigid plastics draw materials conveniently,Finished product is hardly damaged,Long service life.
A kind of display device, including side entrance back module as above.The light guide plate of this display device, when expanded by heating, will not change the spacing between the incident side of light guide plate and lamp bar, thus avoiding damage to lamp bar and ensure that light-emitting uniformity.
Side entrance back module owing to using in the display device of the present embodiment is identical with the side entrance back module provided in each embodiment of above-mentioned side entrance back module, and therefore the two can solve the problem that identical technical problem, and reaches identical Expected Results.
Other compositions about the display device of the embodiment of the present invention wait known by those skilled in the art, no longer describe in detail at this.
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with described scope of the claims.

Claims (10)

1. a side entrance back module, including backboard, described backboard is provided with light guide plate and lamp bar, described lamp bar is positioned at the incident side of described light guide plate, it is characterized in that, the side relative with the incident side of described light guide plate is provided with the first location structure, described first location structure includes keeper and posting, described posting is fixed relative to described backboard, the side of described keeper is fixing with described light guide plate to be connected, opposite side coordinates with described posting, described posting can limit the direction of the exiting surface that described keeper edge is perpendicular to described light guide plate and move, when described light guide plate expanded by heating, described light guide plate can promote described keeper to move to the direction of described posting.
2. side entrance back module according to claim 1, it is characterized in that, described posting includes gathering sill, the notch of described gathering sill is towards described light guide plate, described keeper is provided with opening away from the side of described light guide plate, described opening is towards described gathering sill, and described keeper is provided with the side of described opening and stretches in described gathering sill and extruded contraction by the inwall of described gathering sill.
3. side entrance back module according to claim 1, it is characterised in that both sides adjacent with incident side on described light guide plate are connected respectively through fixed structure and described backboard are fixing, and described fixed structure is arranged near the incident side of described light guide plate.
4. side entrance back module according to claim 3, it is characterised in that described fixed structure includes the locating slot being arranged at described light guide plate both sides, and is arranged at the locating dowel on described backboard, and described locating slot coordinates clamping with described locating dowel.
5. side entrance back module according to claim 2, it is characterised in that described keeper is " V "-shaped away from the opening of the side of described light guide plate.
6. side entrance back module according to claim 5, it is characterised in that the angular range constituting the angle between two limits of described " V " font is 37 °~150 °.
7. side entrance back module according to claim 6, it is characterised in that the angular range constituting the angle between two limits of described " V " font is 45 °~90 °.
8. side entrance back module according to claim 2, it is characterised in that described keeper is provided with the side of opening and is made up of rubber.
9. side entrance back module according to claim 1, it is characterised in that described posting is made up of metal or rigid plastics.
10. a display device, it is characterised in that include the side entrance back module according to any one of claim 1~9.
CN201610136669.2A 2016-03-10 2016-03-10 A kind of side entrance back module and display device Active CN105807486B (en)

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CN111965899A (en) * 2020-09-09 2020-11-20 谷麦光电科技股份有限公司 Combined type backlight structure of vehicle-mounted display screen
CN114740563A (en) * 2022-03-28 2022-07-12 青岛海信商用显示股份有限公司 Express cabinet

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CN104297975A (en) * 2014-10-08 2015-01-21 友达光电股份有限公司 Backlight module and positioning structure thereof

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CN101430054A (en) * 2008-12-25 2009-05-13 友达光电股份有限公司 Flat display device and its backlight module
US20120293729A1 (en) * 2010-02-02 2012-11-22 Sharp Kabushiki Kaisha Lighting device, display device and television receiver
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Publication number Priority date Publication date Assignee Title
CN111965899A (en) * 2020-09-09 2020-11-20 谷麦光电科技股份有限公司 Combined type backlight structure of vehicle-mounted display screen
CN114740563A (en) * 2022-03-28 2022-07-12 青岛海信商用显示股份有限公司 Express cabinet
CN114740563B (en) * 2022-03-28 2024-04-12 青岛海信商用显示股份有限公司 Express cabinet

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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218

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