CN101639183A - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
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- CN101639183A CN101639183A CN200910168599A CN200910168599A CN101639183A CN 101639183 A CN101639183 A CN 101639183A CN 200910168599 A CN200910168599 A CN 200910168599A CN 200910168599 A CN200910168599 A CN 200910168599A CN 101639183 A CN101639183 A CN 101639183A
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Abstract
The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a backboard, a bearing device, a partial edge fixedly connected with the upper surface ofthe backboard, a backlight module membrane set. The backlight module is defined on the backboard by the bearing device; wherein the bearing device comprises a base part, a supporting part and a fixingpart, the base part extends along the partial edge of the upper surface of the backboard, the supporting part projects upwards out of the top surface of the base part in a substantially vertical manner, the top of the supporting part is provided with a stepped supporting surface with at least one step, and the fixing part extends downwards from a bottom surface of the base part opposite to the top surface in a substantially vertical manner so as to fixedly connect the bearing device with the backboard. The bearing device in the backlight module is used for replacing a conventional rubber frame so that the production process can be simplified and the cost can be reduced.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly a kind of module backlight and liquid crystal indicator.
Background technology
LCD (LCD) is as a kind of flat-panel monitor, have clear picture accurately, plurality of advantages such as thin thickness, in light weight, radiationless, low energy consumption and operating voltage be low, be applied in widely in the every field such as communication terminal, multimedia and industrial computer at present.Usually, liquid crystal indicator comprises liquid crystal panel and the module backlight of light source is provided for this liquid crystal panel.
Module backlight mainly is made up of backlight, glue frame, rigidity housing and various backlight film material group.Light emitting diode (Light Emitting Diode, LED), cold-cathode fluorescence lamp (Cold Cathode FluorescentLamp, CCFL) or electroluminescent cell (Electro Luminescence, EL) waiting can be as the backlight of module backlight.The glue frame is the rectangle that mates with the liquid crystal panel size, its inboard is provided with multistage step, be used for fixing, support liquid crystal panel and various backlight film material group, backlight film material group then successively is positioned on the step of glue frame, by reflection ray and optically focused, regulate emitting beam of light-emitting component and spread all over entire backlight film material group surface equably, thereby provide backlight uniformly to liquid crystal panel.
Yet problem is, present glue frame is made up of macromolecular material, adopt special mould molding, generally need and make the glue frame mould according to the size design of the model of LCD or liquid crystal panel, and then the glue frame of manufacturing corresponding size, and in fact, different LCDs is according to the different size of its product type or liquid crystal panel, need repeatedly design, make the glue frame mould to be used for production and lcd products model or the corresponding glue frame of size, this process more complicated, production cycle is long, also can cause the cost of liquid crystal indicator to increase simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of module backlight and liquid crystal indicator, thus with bogey replace traditional glue frame can simplified manufacturing technique, reduce cost.
For addressing the above problem, the invention provides a kind of module backlight, comprising:
Backboard,
Bogey is fixedly connected on the part edge of described backboard upper surface, and
Backlight film material group, it is defined on the described backboard by described bogey;
Wherein, described bogey comprises:
Base portion is along the part edge extension of described backboard upper surface;
The support portion protrudes out substantially vertically upward from the top surface of described base portion, and the top of described support portion is provided with the step-like supporting surface of one-level at least;
Fixed part extends substantially vertically downward from the basal surface relative with the top surface of base portion, so that described bogey is fixedlyed connected with backboard.
Described base portion is a strip, and its basal surface is a horizontal plane.
Described bogey also comprises: from the outward extending pad of side level of described base portion, the bottom surface of described pad is concordant with the basal surface of described base portion.
Described pad is positioned at the position of the described fixed part of vicinity of base portion side.
Described fixed part is to be used for the grab that clamping cooperates, and it comprises the connecting portion that is connected with backboard and bogey is positioned at elasticity fastener on the backboard.
The cross section of the junction of described base portion and described support portion is trapezoidal, and described junction has a plurality of grooves.
Described support portion is one, and it is positioned at the middle part of described base portion substantially; Perhaps described support portion comprises at least two, and it is distributed in the top surface of base portion respectively.
Described fixed part comprises at least two, and it is distributed in the basal surface of base portion respectively, near the two ends that wherein two are distributed in described base portion in the described fixed part.
Described base portion is a square substantially, is positioned at the corner position of described backboard top surface edge.
Accordingly, the present invention also provides a kind of liquid crystal indicator, comprising:
Backboard,
Bogey is fixedly connected on the part edge of described backboard upper surface,
Be positioned at backlight and backlight film material group on the described backboard,
Be positioned at the liquid crystal panel of described backlight film material group top, and
Be positioned at the rigidity housing of described liquid crystal panel periphery;
Wherein, described backlight film material group and liquid crystal panel are limited in the zone that described bogey surrounds, and this bogey comprises:
Base portion is along the part edge extension of described backboard upper surface;
The support portion protrudes out substantially vertically upward from the top surface of described base portion, and the top of described support portion is provided with the step-like supporting surface of one-level at least;
Fixed part extends substantially vertically downward from the basal surface relative with the top surface of base portion, so that described bogey is fixedlyed connected with backboard.
Compared with prior art, technique scheme has the following advantages:
Be provided with bogey in described module backlight and the liquid crystal indicator, a plurality of described bogeys are located at the edge of backboard, its base portion extends along the edge of described backboard upper surface, its support portion is protruded by the top surface of described base portion, the top of described support portion is provided with the step-like supporting surface of one-level at least, can place liquid crystal panel, and its fixed part is fixed on described bogey on the backboard, supports the position of liquid crystal panel and qualification backlight film material group by so a plurality of bogeys.
For example four described bogeys are arranged at two minor faces of rectangle backboard respectively, and liquid crystal panel is positioned on the supporting surface of described support portion, thereby is limited between four described bogeys.Traditional rectangle glue frame is along all long support liquid crystal panels of backboard, need design according to the size of liquid crystal panel and make, and the bogey that technique scheme provides, support liquid crystal panel by the support portion of protruding, in a sense, be the glue frame to be contacted with the line of liquid crystal panel be converted into a contact, liquid crystal panel for various sizes, only need by adjusting the quantity of a plurality of bogeys, distribution and spacing and change a position contacting and get final product, the a plurality of bogeys of disposable manufacturing can be reused, versatility and flexibility are stronger, avoided repeatedly design, make the glue frame mould, and the complex process of repeatedly producing the glue frame, thereby can simplify the production technology of liquid crystal indicator, reduce cost.
In addition, existing module backlight is in assembling or transportation, because glue frame and housing, the friction of liquid crystal panel and backlight film material group or collision easily produce micronic dust and particle, reliability to liquid crystal indicator causes harmful effect, and the described bogey of technique scheme, and the module backlight and the liquid crystal indicator that comprise described bogey, support liquid crystal panel by the support portion of protruding, the glue frame contacted with the line of liquid crystal panel be converted into a contact, reduced and housing, the contact area of liquid crystal panel and backlight film material group, thereby can reduce friction or collide micronic dust and the particle that causes, and then improve the reliability of liquid crystal indicator.And saved existingly beat, the step of cleaning rubber frame, help enhancing productivity.
Description of drawings
Shown in accompanying drawing, above-mentioned and other purpose, feature and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by actual size equal proportion convergent-divergent.
Fig. 1 is the three-dimensional structure diagram of the bogey of module backlight among the embodiment one,
Fig. 2 is the front view of the bogey of module backlight among the embodiment one,
Fig. 3 is the upward view of the bogey of module backlight among the embodiment one,
Fig. 4 is the side view of the bogey of module backlight among the embodiment one,
Fig. 5 is the three-dimensional structure diagram of the bogey of module backlight among the embodiment two,
Fig. 6 is the decomposition chart of liquid crystal indicator among the embodiment three,
Fig. 7 is the partial structurtes figure of liquid crystal indicator among the embodiment three.
The specific embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the specific embodiment of the present invention is described in detail below in conjunction with accompanying drawing.
Set forth a lot of details in the following description so that fully understand the present invention, implement but the present invention can also adopt other to be different from alternate manner described here, so the present invention has not been subjected to the restriction of following public specific embodiment.
Secondly, the present invention is described in detail in conjunction with schematic diagram, when the embodiment of the invention is described in detail in detail; for ease of explanation; the profile of indication device structure can be disobeyed general ratio and be done local the amplification, and described schematic diagram is example, and it should not limit the scope of protection of the invention at this.The three dimensions size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
Technical scheme of the present invention proposes a kind of module backlight and liquid crystal indicator that comprises bogey.
Describe a preferred embodiment of described module backlight in detail below in conjunction with accompanying drawing.
Embodiment one
Fig. 1 is the three-dimensional structure diagram of the bogey of module backlight described in the present embodiment, Fig. 2 is the front view of the bogey of module backlight described in the present embodiment, Fig. 3 is the upward view of the bogey of module backlight described in the present embodiment, and Fig. 4 is the side view of the bogey of module backlight described in the present embodiment.
Described module backlight specifically comprises:
Backboard,
Bogey 2 is fixedly connected on the part edge of described backboard upper surface, and,
Be defined in backlight film material group on the described backboard by described bogey 2;
This module backlight is positioned at the below of liquid crystal panel (not shown), and being used for provides required backlight to liquid crystal panel, and described liquid crystal panel is positioned on the step-like supporting surface of described support portion.In addition, this module backlight can also have the rigidity housing, is arranged at the periphery of backlight film material group, and described bogey, backlight film material group and backlight etc. is contained in wherein after described backboard is connected.
Shown in Fig. 1～4, wherein said bogey 2 comprises:
Fixed part extends substantially vertically downward from the basal surface relative with the top surface of base portion 20, so that described bogey 2 is fixedlyed connected with backboard.
Specifically comprise two fixed parts 22 in the present embodiment, i.e. first fixed part 221 and second fixed part 222, described first fixed part 221 and second fixed part 222 lay respectively at the both sides of described support portion 21, with the fixed-site with described bogey 2.
Above-mentioned bogey 2 and backboard (among the figure for illustrating) are fixedlyed connected the position that is used to support liquid crystal panel and limits various backlight film material groups.The length of the base portion 20 of described strip is less than each length of side of liquid crystal panel, and the length of described support portion 21 is less than the length of described base portion 20, for example the length of base portion 20 then can the fixer crystal panel along at least three described bogeys 2 are set on the girth of backboard less than 1/2nd of rectangle liquid crystal panel length of short sides.
In addition, base portion described in other embodiment of the present invention can be along both direction extension at least, and in other words, described base portion is square substantially.For example, base portion is two intersect vertically mutually rectangular, and the support portion is protruded by the junction, right angle, and such bogey can be arranged at four drift angle places of backboard top surface edge.
Preferably, described support portion 21 is positioned at the middle part of described base portion substantially.
Preferably, described first fixed part 221 and second fixed part 222 are symmetrically distributed on the base portion of 21 both sides, support portion, and are distributed near the two ends of described base portion 20, so, the fixed position of described bogey 2 is evenly distributed, and what can be fixed is more firm.
Preferably, described first fixed part 221 and second fixed part 222 are for being used for the grab that bogey 2 cooperates with through hole (not shown) clamping on the backboard.As shown in Figure 2, grab 222 comprises the connecting portion 222b that is connected with through hole on the backboard and bogey is positioned at fastener 222a on the backboard, wherein, the end of described connecting portion 222b is fixedly connected on the basal surface of described base portion 20, its other end connects fastener 222a, described fastener 222a has elasticity, its size is slightly larger than the diameter of corresponding through hole on the backboard, when under external force grab 222 being pressed into described through hole, fastener 222a is squeezed and shrinks along level, thereby fastener 222a passes the through hole of backboard, the connecting portion 222b of grab 222 is housed in the through hole of backboard, fastener 222a rebounded after pressing through hole, thus with the backboard clamping, with bogey 2 stable position on backboard.
Described bogey 2 also can adopt other connected modes with backboard, and optionally, described fixed part is a projection, and the through hole on described projection and the described backboard is matched in clearance or interference fit.In addition, in other embodiments of the invention, also projection or grab can be set on backboard, and the fixed part of bogey is a through hole.
Preferably, described bogey 2 also comprises pad 23, described pad 23 is stretched out by the side level of base portion 20 from described base portion 20, the bottom surface of described pad 23 is concordant with the basal surface of described base portion 20, and described pad 23 is positioned at the position of the described fixed part 22 of vicinity of base portion 20 sides, also can all be extended out by the both sides of whole base portion 20 width B-B, its shape can be semicircle, rectangle, triangle etc.Described pad 23 can increase the contact area of bogey 2 and backboard, make bogey 2 more firm be close to backboard.
Optionally, the top of described support portion can be multistage step, is used to place liquid crystal panel and backlight film material group etc.The support portion also can be arranged to the cross section be rectangle, trapezoidal, oval or the circle etc. different shape, all can as long as can play a supporting role.
In the present embodiment, described support portion 21 and described base portion 20 are one-body molded.Described fixed part 22 can be one-body molded with described base portion 20, also can the moulding of described fixed part independence be connected with described base portion again.Preferably, described base portion 20, support portion 21 and fixed part 22 are one-body molded in special mould.
This bogey is generally macromolecular material and makes, preferably, described base portion 20 is trapezoidal with the cross section of the junction 24 of described support portion 21, has increased the gradient and the material thickness of described junction 24, can prevent the cracking between base portion described in the forming process 20 and the described support portion 21.In addition, described junction 24 has a plurality of grooves.
The cross section of base portion 20 shown in Fig. 1,4 is the T type, and this T type cross section can make the easy moulding of base portion, and play the effect of reinforcement for outstanding rib.
Connector in the present embodiment is a backboard, in fact, also can be the miscellaneous part in the liquid crystal indicator, for example, and rigidity housing etc.
In the present embodiment, the bogey of described module backlight has a support portion, describes another preferred embodiment of described module backlight in detail below in conjunction with accompanying drawing, and bogey has a plurality of support portions among this embodiment.
Embodiment two
Fig. 5 is the three-dimensional structure diagram of the bogey of module backlight described in the present embodiment.
As shown in the figure, the difference of bogey in the present embodiment and embodiment one is, have two support portions, i.e. first support portion 211 ' and second support portion 212 ', top surface by described base portion 20 ' protrudes, and first fixed part 221 ' and second fixed part 222 ' lay respectively at the both sides of described first support portion 211 ' and second support portion 212 '.
So increased the strong point, helped improving steadiness liquid crystal panel.Optional, preferred scheme also is applicable to present embodiment among the above embodiment one, does not repeat them here.
In addition, optionally, bogey also can comprise plural support portion, perhaps plural fixed part.At least plural support portion is distributed in the top surface of base portion respectively, and plural at least fixed part is distributed in the basal surface of base portion respectively.Preferably, near the two ends that wherein two are distributed in described base portion in the plural at least fixed part.
Describe the preferred embodiment of liquid crystal indicator that comprises described bogey in detail below in conjunction with accompanying drawing.
Embodiment three
Fig. 6 is the decomposition chart of liquid crystal indicator described in the present embodiment, and Fig. 7 is the partial structurtes figure of liquid crystal indicator described in the present embodiment.As shown in the figure, described liquid crystal indicator comprises:
Backlight film material group 4 is positioned at described backlight 3 tops;
Wherein, described bogey 2 can be any bogey among embodiment one and the embodiment two, the edge of liquid crystal panel 5 is placed on the step-like supporting surface 21a (see figure 4) of support portion 21, liquid crystal panel 5 basic comprising points are contacted, and the vertical plane 21b (see figure 4) of support portion 21 defines the position of liquid crystal panel 5 and backlight film material group 4 etc., and they are limited in the zone that a plurality of bogeys 2 surround.
Described liquid crystal panel 5 peripheries also are provided with rigidity housing 6, it for example is iron cover 6, described iron cover opening forward, be placed with backlight film material group 4, bogey 2, liquid crystal panel 5 grades all are contained in the iron cover 6, like this, because the stiffness and strength of iron cover 6 is bigger, can improve the force-bearing situation of backlight film material group 4 and improve the rigidity of structure of liquid crystal indicator, promptly when external influence power, external influence power at first acts on the backlight film material group 4 iron cover 6 outward, because the rigidity of iron cover 6 is much larger than backlight film material group 4, iron cover 6 deflections are little, thereby, reduced the distortion of backlight film material group 4, improved the characteristic backlight on backlight film material group 4 surfaces.In addition, also can on iron cover 6, paste conducting adhesive cloth and ground connection, improve antistatic effect.
Among the above embodiment, bogey all is arranged on the minor face of backboard, in fact also can be other distribution modes, for example, bogey lays respectively at two long limits and two minor faces of backboard, be equipped with bogey on the girth of whole like this liquid crystal panel, can limit the position of liquid crystal panel from a plurality of directions; Also can only adopt three bogeys, its specifically the placement location on backboard multiple combination can be arranged, as long as can play fixing and limit backlight film material group and liquid crystal panel.If the base portion long enough of described bogey (but still less than backboard length of side) then is provided with two bogeys and just liquid crystal panel can be fixed.
Among above each embodiment of the present invention, a plurality of described bogeys are located at the edge of backboard, the part edge of its base portion backboard upper surface extends, its support portion is protruded by the top surface of described base portion, the top of described support portion is provided with the step-like supporting surface of one-level at least, can place liquid crystal panel, and its fixed part is fixed on described bogey on the backboard, supports the position of liquid crystal panel and qualification backlight film material group by so a plurality of bogeys.
For example four described bogeys are arranged at two minor face positions of rectangle backboard respectively, and liquid crystal panel is positioned on the supporting surface of described support portion, thereby is limited between four described bogeys.Traditional rectangle glue frame is along all long support liquid crystal panels of backboard, need design according to the size of liquid crystal panel and make, and the bogey that technique scheme provides, limit backlight film material group by the bearing-surface support liquid crystal panel of the support portion of protruding and the vertical plane of support portion, in a sense, be the glue frame to be contacted with the line of liquid crystal panel be converted into a contact, liquid crystal panel for various sizes, only need by adjusting the quantity of a plurality of bogeys, distribution and spacing and change a position contacting and get final product, because of different LCD types or size all can adopt identical bogey, therefore the same set of bogey of making this bogey can use for the module backlight of a plurality of sizes, versatility and flexibility are stronger, avoided repeatedly design, make the glue frame mould, and the complex process of repeatedly producing the glue frame, thereby can simplify the production technology of liquid crystal indicator, shorten the construction cycle, reduce cost.
The disclosed bogey of the embodiment of the invention, its material can be rubber, and plastics also can be metalworks.The bogey of different materials all can be applied on the module backlight, also can be applied to other different field.
The above only is preferred embodiment of the present invention, is not the present invention is done any pro forma restriction.
Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Any those of ordinary skill in the art, do not breaking away under the technical solution of the present invention scope situation, all can utilize the method and the technology contents of above-mentioned announcement that technical solution of the present invention is made many possible changes and modification, or be revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical solution of the present invention, all still belongs in the scope of technical solution of the present invention protection any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (10)
1, a kind of module backlight is characterized in that, comprising:
Backboard,
Bogey is fixedly connected on the part edge of described backboard upper surface, and
Backlight film material group, it is defined on the described backboard by described bogey;
Wherein, described bogey comprises:
Base portion is along the part edge extension of described backboard upper surface;
The support portion protrudes out substantially vertically upward from the top surface of described base portion, and the top of described support portion is provided with the step-like supporting surface of one-level at least;
Fixed part extends substantially vertically downward from the basal surface relative with the top surface of base portion, so that described bogey is fixedlyed connected with backboard.
2, module backlight according to claim 1 is characterized in that, described base portion is a strip, and its basal surface is a horizontal plane.
3, module backlight according to claim 2 is characterized in that, described bogey also comprises: from the outward extending pad of side level of described base portion, the bottom surface of described pad is concordant with the basal surface of described base portion.
4, module backlight according to claim 3 is characterized in that, described pad is positioned at the position of the described fixed part of vicinity of base portion side.
According to each described module backlight of claim 1 to 4, it is characterized in that 5, described fixed part is to be used for the grab that clamping cooperates, it comprises the connecting portion that is connected with backboard and bogey is positioned at elasticity fastener on the backboard.
6, according to each described module backlight of claim 1 to 4, it is characterized in that the cross section of the junction of described base portion and described support portion is trapezoidal, described junction has a plurality of grooves.
7, according to each described module backlight of claim 1 to 4, it is characterized in that described support portion is one, it is positioned at the middle part of described base portion substantially; Perhaps described support portion comprises at least two, and it is distributed in the top surface of base portion respectively.
8, according to each described module backlight of claim 1 to 4, it is characterized in that described fixed part comprises at least two, it is distributed in the basal surface of base portion respectively, near the two ends that wherein two are distributed in described base portion in the described fixed part.
9, module backlight according to claim 1 is characterized in that, described base portion is a square substantially, is positioned at the corner position of described backboard top surface edge.
10, a kind of liquid crystal indicator is characterized in that, comprises
Backboard,
Bogey is fixedly connected on the part edge of described backboard upper surface,
Be positioned at backlight and backlight film material group on the described backboard,
Be positioned at the liquid crystal panel of described backlight film material group top, and
Be positioned at the rigidity housing of described liquid crystal panel periphery;
Wherein, described backlight film material group and liquid crystal panel are limited in the zone that described bogey surrounds, and this bogey comprises:
Base portion is along the part edge extension of described backboard upper surface;
The support portion protrudes out substantially vertically upward from the top surface of described base portion, and the top of described support portion is provided with the step-like supporting surface of one-level at least;
Fixed part extends substantially vertically downward from the basal surface relative with the top surface of base portion, so that described bogey is fixedlyed connected with backboard.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2009101685999A CN101639183B (en) | 2009-08-25 | 2009-08-25 | Backlight module and liquid crystal display device |
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| CN2009101685999A CN101639183B (en) | 2009-08-25 | 2009-08-25 | Backlight module and liquid crystal display device |
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| CN101639183B CN101639183B (en) | 2011-01-05 |
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| CN200983055Y (en) * | 2006-12-01 | 2007-11-28 | 群康科技(深圳)有限公司 | Backlight module assembly and LCD |
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| CN102749734A (en) * | 2012-06-19 | 2012-10-24 | 歌尔声学股份有限公司 | Backlight module of LCD (Liquid Crystal Display) device and manufacturing method of backlight module |
| CN102778769A (en) * | 2012-07-31 | 2012-11-14 | 深圳市华星光电技术有限公司 | Liquid crystal display device, and frame unit and liquid crystal panel alignment method thereof |
| CN103032777B (en) * | 2012-12-27 | 2015-04-22 | 京东方科技集团股份有限公司 | Back light module and liquid crystal display device |
| CN103032777A (en) * | 2012-12-27 | 2013-04-10 | 京东方科技集团股份有限公司 | Back light module and liquid crystal display device |
| US9645442B2 (en) | 2012-12-27 | 2017-05-09 | Boe Technology Group Co., Ltd. | Backlight module and liquid crystal display |
| CN108037617A (en) * | 2017-12-29 | 2018-05-15 | 惠州市华星光电技术有限公司 | Liquid crystal display and its backlight module |
| CN108037617B (en) * | 2017-12-29 | 2021-01-15 | 惠州市华星光电技术有限公司 | Liquid crystal display and backlight module thereof |
| CN114069138A (en) * | 2021-11-19 | 2022-02-18 | 威睿电动汽车技术(宁波)有限公司 | Connecting device and battery tray |
| CN114069138B (en) * | 2021-11-19 | 2023-10-24 | 浙江吉利控股集团有限公司 | Connecting device and battery tray |
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| CN101639183B (en) | 2011-01-05 |
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