CN101118339A - Backlight module and LCD device using same - Google Patents
Backlight module and LCD device using same Download PDFInfo
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- CN101118339A CN101118339A CNA2006101009704A CN200610100970A CN101118339A CN 101118339 A CN101118339 A CN 101118339A CN A2006101009704 A CNA2006101009704 A CN A2006101009704A CN 200610100970 A CN200610100970 A CN 200610100970A CN 101118339 A CN101118339 A CN 101118339A
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Abstract
A backlight module and a liquid crystal display device using the backlight module. The backlight module includes at least a backplane which has a floor and a plurality of side walls surrounding the floor; a first light group and a second light group which are arranged to surround the inner side of the side walls ; and the two ends of the first light group are arranged respectively near the two ends of the second light group; both the first light group and the second light group include at least one lamp, two tube faces respectively arranged on the two ends of the light groups, two fixed structures which respectively cover the tube face of the first light group and the tube face of the second light group near the tube face of the first light group; wherein, each fixed structure is provided with a roof, and since the medial edge of the roof of a downward extension of at least one inner plate extending downwards from one of the inner side edge of the roof, and a light-guiding plate which is arranged on the floor of the backplane, and among the first light group, the second light group l, as well as the fixed structures.
Description
Technical field
The present invention relates to a kind of backlight module and use the liquid crystal indicator of this backlight module, but particularly relate to a kind of backlight module of the fixed mechanism with fixed lamp tube board holder, light guide plate and blooming piece and use the liquid crystal indicator of this backlight module.
Background technology
Common in the market LCD major part is the backlight LCD, and the LCD of this class is general main to be made up of the display panels of front end and the backlight module of rear end.Therefore, backlight module is one of spare part quite crucial in the LCD.
Backlight module generally can be divided into straight-down negative and side direction incident type.The backlight module of side direction incident type mainly comprises formations such as backboard, fluorescent tube, light guide plate and blooming piece.Usually, light guide plate is located on the backboard, and fluorescent tube is located between the inboard and light guide plate of sidewall of backboard, and blooming piece then is arranged on the light guide plate.The fixed form of existing light guide plate mainly contains two kinds.First kind is to change the shape of light guide plate by cutting light guide plate, and light guide plate can be protruded or recessed mode and other member tabling in the backlight module.Second kind then is to utilize double faced adhesive tape that light guide plate is sticked on the bottom surface of backboard.Yet, in first kind of mode, not only can increase the moulding complexity of light guide plate, more can additionally derive the expense of cutting, in addition, the part of the fixed sturcture of light guide plate can not be placed fluorescent tube, so not only will limit the district of putting of fluorescent tube, also can cause the waste in space simultaneously.In the second way,, will cause the vision taste not good, and the processed complex of this kind mode more can't heavy industry if the double faced adhesive tape conformable region is too near from the visible area of display.
On the other hand, existing fluorescent tube fixed form is to utilize the fluorescent tube board holder to be fixed in two ends of fluorescent tube earlier, blocks other member by the moulding of fluorescent tube board holder again.Yet, the constant intensity deficiency of such fluorescent tube fixed form, and the fluorescent tube board holder is not enough with the packing that combines of other member, can't dispel the heat by conduction pattern, thereby radiating effect is poor.
Summary of the invention
Therefore, purpose of the present invention just provides a kind of backlight module, and it has the fixed mechanism of the non-light-emitting area that is arranged on the backlight module corner, simultaneously lightguide plate fixing and fluorescent tube board holder, do not need to design in addition to cut the moulding of light guide plate, thereby can not influence the ornaments position of fluorescent tube.Therefore can simplify the moulding of light guide plate, and can save the expense that cuts of light guide plate, can reduce the restriction that fluorescent tube is put the district simultaneously, thereby can save the space.
Another object of the present invention provides a kind of backlight module, and the end face of the fixed mechanism that its corner is set is provided with at least one convex fixed sturcture, and this not only can effectively locate the position of blooming piece, and blooming piece can be inserted in the glue frame.Therefore, can effectively improve blooming piece light leak and blooming piece and be wavy curling phenomenon.
Another purpose of the present invention provides a kind of liquid crystal indicator, and it utilizes fixed mechanism to fix light guide plate, and need be by double faced adhesive tape, and this is the heavy industry height not only, and can save man-hour, more can avoid causing the not good of vision taste.
A further object of the present invention provides a kind of liquid crystal indicator, by the installing of fixed mechanism, other member of fluorescent tube board holder and backlight module is combined closely, and therefore can increase the radiating effect of fluorescent tube board holder.
According to above-mentioned purpose of the present invention, a kind of backlight module is proposed, it comprises at least: a backboard has a base plate and a plurality of sidewalls that are around in the periphery of base plate; One first light tube group and one second light tube group, be around on the medial surface of sidewall, and two ends of first light tube group are respectively adjacent to two ends in second light tube group, and wherein first light tube group and second light tube group include at least one fluorescent tube and be located at two fluorescent tube board holders of two ends of light tube group respectively; Two fixed mechanisms, on the fluorescent tube board holder of the fluorescent tube board holder that is located at first light tube group respectively and contiguous second light tube group, wherein each fixed mechanism has a top board and at least one interior plate that extends from an inner side edge of top board downwards; And a light guide plate, be located on the base plate of backboard, and between first light tube group, second light tube group and fixed mechanism.
According to one embodiment of the present invention, base plate also is provided with opening, and at least one interior plate correspondence is provided with the convex thing, and the lower edge of this interior plate and convex thing pass opening, and make the holding of convex thing at edge of opening.
According to purpose of the present invention, a kind of backlight module is proposed, it comprises at least: a backboard, a plurality of sidewalls that have a base plate and be around in the periphery of base plate; One light source is located on the medial surface of sidewall; One light guide plate is located on the base plate of backboard, and between first light tube group and second light tube group; And at least one blooming piece, being located on the light guide plate, wherein at least one blooming piece comprises a plurality of lugs, these lugs are positioned at the corner of backboard.
According to one embodiment of the present invention, this backlight module also comprises two fixed mechanisms at least, and the top board of each fixed mechanism also comprises at least one convex fixed sturcture, each lug then comprises at least one through hole, correspond respectively at least one convex fixed sturcture of each fixed mechanism, wherein at least one convex fixed sturcture of each fixed mechanism is located at least one through hole of corresponding lug, with fixing at least one blooming piece.
According to another object of the present invention, a kind of liquid crystal indicator is proposed, it comprises at least: a backlight module and is located at the display panels on the backlight module.Wherein, this backlight module comprises at least: a backboard has a base plate and a plurality of sidewalls that are around in the periphery of base plate; One first light tube group and one second light tube group, be around on the medial surface of sidewall, and two ends of first light tube group are respectively adjacent to two ends in second light tube group, and wherein first light tube group and second light tube group include at least one fluorescent tube and be located at two fluorescent tube board holders of two ends of light tube group respectively; Two fixed mechanisms are located at respectively on the fluorescent tube board holder of the fluorescent tube board holder of first light tube group and contiguous second light tube group, wherein each fixed mechanism at least one interior plate of having a top board and extending downwards from an inner side edge of top board; And a light guide plate, be located on the base plate of backboard, and between first light tube group, second light tube group and fixed mechanism.
According to one embodiment of the present invention, each fixed mechanism comprises two interior plates and two outer panels, wherein these outer panels extend downwards and correspond respectively to interior plate from the outer side edges of top board, and outer panel is between the sidewall of fluorescent tube board holder and backboard, and two contiguous fluorescent tube board holders are folded in respectively between interior plate and the corresponding outer panel.
According to a further object of the present invention, a kind of liquid crystal indicator is proposed, it comprises a backlight module at least and is located at a display panels on the backlight module.This backlight module comprises at least: a backboard has a base plate and a plurality of sidewalls that are around in the periphery of base plate; One light source is located on the medial surface of sidewall; One light guide plate is located on the base plate of backboard, and between first light tube group and second light tube group; And at least one blooming piece, being located on the light guide plate, wherein at least one blooming piece comprises a plurality of lugs, and these lugs are positioned at the corner of backboard.
According to one embodiment of the present invention, this backlight module also comprises two fixed mechanisms at least, and the top board of each fixed mechanism also comprises at least one convex fixed sturcture, with fixing at least one blooming piece.
Utilize fixed mechanism, can also can the convex fixed sturcture be set on the top board of fixed mechanism and locate blooming piece at the corner lightguide plate fixing and the fluorescent tube board holder of backlight module.Therefore, by the utilization of fixed mechanism, can strengthen constant intensity to light guide plate and fluorescent tube board holder.In addition, because fixed mechanism is arranged on the corner of backlight module, not only need not to cut in addition light guide plate and make its fixedly moulding, also can not increase the restriction of the setting area of fluorescent tube, therefore can simplify the assembling of liquid crystal indicator, heavy industry is good, further reaches the effect of saving man-hour.The setting of fixed mechanism has, owing to can make the fluorescent tube board holder more closely engage with other member, and then can promote the heat dissipation of fluorescent tube board holder again.In addition, because the lug of location blooming piece is to be positioned at corner, so blooming piece can be located in the glue frame, thereby can improve the wavy curling phenomenon of light leak and blooming piece significantly.
Description of drawings
Fig. 1 is the package system figure according to a kind of backlight module of first preferred embodiment of the invention;
Fig. 2 is the package system figure according to a kind of backlight module of second preferred embodiment of the invention;
Fig. 3 is the package system figure according to a kind of backlight module of third preferred embodiment of the invention;
Fig. 4 is the package system figure according to a kind of backlight module of four preferred embodiment of the invention;
Fig. 5 is the package system figure according to a kind of backlight module of fifth preferred embodiment of the invention.
Embodiment
The present invention discloses a kind of backlight module and uses the liquid crystal indicator of this backlight module, this backlight module has two fixed mechanisms, can be at the corner of backlight module lightguide plate fixing and fluorescent tube board holder, also utilize the mode that on the top board of fixed mechanism, is convexly equipped with fixed sturcture to locate blooming piece, therefore can reduce the moulding complexity of light guide plate widely and save the expense of cutting, reduce fluorescent tube and put the restriction in district, can save the space simultaneously, thereby and heavy industry is good can save man-hour.Secondly, the lug of blooming piece is located on the corner, thereby blooming piece can insert in the glue frame, can improve light leak and avoid blooming piece to produce wavy curling.In addition, the setting of fixed mechanism can make comparatively fluid-tight engagement of fluorescent tube board holder and other member, thereby can increase radiating effect.In order to make narration of the present invention more detailed and complete, can and cooperate Fig. 1 with reference to following description to shown in Figure 5.
With reference to Fig. 1, it is the package system figure of a kind of backlight module of first preferred embodiment of the invention.This backlight module 100a mainly comprises backboard 102, light source, light guide plate 108 and two fixed mechanism 116a.Backboard 102 comprises base plate 104 and a plurality of sidewall 106, and wherein these sidewalls 106 are around on the periphery of base plate 104.Light source mainly is made of lamp tube device, two light tube group 110 for example, and two ends of each light tube group 110 are respectively adjacent to two ends in another light tube group 110, and are placed in the medial surface of these sidewalls 106 in the mode of enclosing.Each light tube group 110 includes at least one fluorescent tube 112 and two fluorescent tube board holders 114, and wherein two fluorescent tube board holders 114 are located at two ends of fluorescent tube 112 respectively.In the present embodiment, each light tube group 110 includes two up and down juxtaposed fluorescent tubes 112, but each light tube group 110 of the present invention can only comprise a fluorescent tube or the fluorescent tube more than two, and it is described to be not limited to present embodiment.Fluorescent tube 112 generally can be cold cathode fluorescent lamp.In the present embodiment, the fluorescent tube 112 of two light tube group 110 all for example essence be the fluorescent tube of L type.Yet in other embodiments, the fluorescent tube of two light tube group can be respectively linear pattern fluorescent tube and ㄈ font fluorescent tube.
Shown in the enlarged drawing 118a of fixed mechanism 116a, fixed mechanism 116a comprises top board 120a, two interior plate 126a and 130a, two outer panel 132a and 136a.Wherein, top board 120a is engaged by part 122a and 124a to form, and interior plate 126a and 130a correspond respectively to outer panel 136a and 132a.Interior plate 126a and 130a extend downwards from the part 122a of top board 120a and the inner side edge of 124a respectively, and outer panel 136a and 132a then extend downwards from the part 122a of top board 120a and the outer side edges of 124a respectively.Interior plate 126a, outer panel 132a and 136a also are respectively equipped with convex thing 128a, 134a and 140a.The part 122a of top board 120a and 124a can essence be that the mode of L type engages, and are that the corner of the top board 120a of L type also can be provided with convex fixed sturcture 138a in this essence, and wherein convex fixed sturcture 138a can for example be the convex column structure.Each fixed mechanism 116a is located on the fluorescent tube board holder 114 of adjoining two ends of two light tube group 110, wherein be folded in respectively among the fixed mechanism 116a between the opposed inside plate 126a and outer panel 136a and interior plate 130a and outer panel 132a, and outer panel 132a and 136a then are embedded between fluorescent tube board holder 114 and sidewall 106 at the two adjacent fluorescent tube board holders 114 in backlight module 100a corner.The material of fixed mechanism 116a is preferably hard material, for example electrogalvanizing steel disc (SECC), tinplate, polycarbonate (PC), acrylonitrile-butadiene-phenylethylene (ABS) or poly-third ethene (PS) add glass fiber material, wherein for strengthening heat-sinking capability, the material of fixed mechanism 116a can adopt metal.
With respect to the convex thing 128a of the interior plate 126a of fixed mechanism 116a, base plate 104 also is provided with opening 150a.In addition, with respect to the convex thing 134a of the outer panel 132a of fixed mechanism 116a and the convex thing 140a of outer panel 136a, sidewall 106 also is provided with opening 152a and 154a.When fixed mechanism 116a is set, the lower edge of interior plate 126a passes opening 150a together with the convex thing 128a on it, and making convex thing 128a holding at the edge of opening 150a, the convex thing 140a of the convex thing 134a of outer panel 132a and outer panel 136a then is entrenched in respectively among the opening 152a and 154a of sidewall 106.Like this, fixed mechanism 116a can be fixed on the backboard 102 effectively, and further fluorescent tube board holder 114 is fixed on the corner of backboard 102.Because the setting of fixed mechanism 116a, can make between fluorescent tube board holder 114 and backboard 102 and the light guide plate 108 more tight, the heat that on fluorescent tube board holder 114, produces when therefore display device turns round, can be via the conduction of fixed mechanism 116a via backboard 102 and/or light guide plate 108 and dissipation, thereby improve the heat-sinking capability of fluorescent tube board holder 114 significantly.
More noticeablely be, though the fixed mechanism 116a of present embodiment is provided with three fixedly convex things of usefulness, and backboard 102 is provided with three corresponding opening relatively, but the present invention can only respectively be provided with a junction surface on fixed mechanism and backboard, for example only establishing protruded object 128a on the interior plate 126a and corresponding opening 150a is being set on base plate 104, and junction surface on the fixed mechanism and the junction surface on the backboard can be engaged with each other and fixed mechanism is fixed on and get final product on the backboard, this not only the quantity at junction surface can be increased and decreased and be not limited to the foregoing description according to demand, and the junction surface on fixed mechanism and the backboard also can be changed according to device.For instance, the junction surface of fixed mechanism can be the opening pattern, and the junction surface on the backboard then can be corresponding convex structure.In addition, the junction surface of fixed mechanism of the present invention can be arranged on arbitrary interior plate and/or the outer panel.
After finishing being provided with of fixed mechanism 116a, light guide plate 108 can be placed on the base plate 104 of backboard 102, and be arranged in the zone that two light tube group 110 are surrounded, and between two fixed mechanism 116a.Owing to the interior plate 126a of fixed mechanism 116a and 130a are that inner side edge from top board 120a extends, therefore such structure has stronger structural strength, is arranged on effective location that light guide plate 108 between the fixed mechanism 116a can be subjected to this two fixed mechanism 116a.In the present invention, two light tube group 110 preferably all are to be the L type, and two port connects and be enclosed to form square, and therefore two fixed mechanism 116a can be positioned at the diagonal angle, so can provide light guide plate more excellent fixed support.Owing to utilize fixed mechanism 116a, can be in the corner while of backlight module 100a fixed lamp tube board holder 114 and light guide plate 108, and the moulding that need not additional designs light guide plate 108 is also cut, therefore not only can lower the complexity of the moulding of light guide plate 108, save the expense of cutting, more can therefore not limit the ornaments district of fluorescent tube, and then can save the space, have the market competitiveness.In addition, during lightguide plate fixing 108, be to utilize the mode that fixed mechanism 116a is fastened on backboard 102, need not by means of double faced adhesive tape, so heavy industry is good, and can saves man-hour.
With reference to Fig. 2, it is the package system figure according to a kind of backlight module of second preferred embodiment of the invention.The device of the backlight module 100b device with backlight module 100a haply is identical, and main difference is that the fixed mechanism 116b of backlight module 100b is different from the fixed mechanism 116a of backlight module 100a.Fixed mechanism 116b comprises top board 120b, two interior plate 126b and 130b, two outer panel 132b and 136b.Top board 120b is to be that the mode of L type engages and forms by part 122b and 124b to be essence equally, and interior plate 126b and 130b correspond respectively to outer panel 136b and 132b.Interior plate 126b and outer panel 136b and interior plate 130b and outer panel 132b extend downwards from the part 122b of top board 120b and inner side edge and the outer side edges of 124b respectively.Interior plate 126b, outer panel 132b and 136b also are respectively equipped with convex thing 128b, 134b and 140b.Being essence is that the corner of the top board 120b of L type also can be provided with convex fixed sturcture 138b, and wherein convex fixed sturcture 138b can for example be the convex column structure.In the present embodiment, the part 122b of the top board 120b of fixed mechanism 116b and 124b and outer panel 136b and 132b extend towards another corner along sidewall 106 from the corner at its place respectively, and shield the fluorescent tube 112 of adjacency in two light tube group 110 respectively.In a preferred embodiment of the present invention, the medial surface of the downside of top board 120b and outer panel 132b and 136b also can be provided with reflective film, so fixed mechanism 116b also can provide the lamp tube light source function of reflecting.
With respect to the convex thing 128a of the interior plate 126b of fixed mechanism 116b, base plate 104 also is provided with opening 150b; And with respect to the convex thing 134b of outer panel 132b and the convex thing 140b of outer panel 136b, sidewall 106 also is provided with opening 152b and 154b.During installing fixed mechanism 116b, the lower edge of interior plate 126b passes opening 150b together with the convex thing 128b on it, and make convex thing 128b holding at opening 150b edge, the convex thing 140b of the convex thing 134b of outer panel 132b and outer panel 136b then is entrenched in respectively among the opening 152b and 154b of sidewall 106, so that fixed mechanism 116b is fixed on the backboard 102 effectively, and then fluorescent tube board holder 114 is fixed on the corner of backboard 102.
With reference to Fig. 3, it is the package system figure according to a kind of backlight module of third preferred embodiment of the invention.The device of the backlight module 100c device with backlight module 100b haply is identical, and main difference is that the fixed mechanism 116c of backlight module 100c is different from the fixed mechanism 116b of backlight module 100b.Fixed mechanism 116c mainly comprises top board 120c, two interior plate 126c and 130c, two outer panel 132c and 136c.Top board 120c comprises that essence is vertical part 122c and 124c, and interior plate 126c and 130c correspond respectively to outer panel 136c and 132c.In fixed mechanism 116c, two part 122c and the 124c of top board 120c do not engage, and interior plate 126c and 130c then engage one another.In the same manner, interior plate 126c and outer panel 136c and interior plate 130c and outer panel 132c extend downwards from the part 122c of top board 120c and inner side edge and the outer side edges of 124c respectively.Interior plate 126c, outer panel 132c and 136c also are respectively equipped with convex thing 128c, 134c and 140c.Identical with second embodiment, in the present embodiment, the part 122c of the top board 120c of fixed mechanism 116c and 124c and outer panel 136c and 132c extend towards another corner along sidewall 106 from the corner at its place respectively, and shield the fluorescent tube 112 of adjacency in two light tube group 110 respectively.In a preferred embodiment, the medial surface of the downside of top board 120c and outer panel 132c and 136c also can be provided with reflective film, with the reflection light that fluorescent tube was sent.
Similarly, with respect to the convex thing 128c of the interior plate 126c of fixed mechanism 116c, base plate 104 is provided with opening 150c; And with respect to the convex thing 134c of outer panel 132c and the convex thing 140c of outer panel 136c, sidewall 106 also is provided with opening 152c and 154c.During mechanism for installing 116c, the lower edge of interior plate 126c passes opening 150c together with the convex thing 128c on it, and make convex thing 128c holding at opening 150c edge, the convex thing 140c of the convex thing 134c of outer panel 132c and outer panel 136c then is entrenched in respectively among the opening 152c and 154c of sidewall 106, and fixed mechanism 116c is fixed on the backboard 102, further fluorescent tube board holder 114 is fixed on the corner of backboard 102.
With reference to Fig. 4, it is the package system figure according to a kind of backlight module of four preferred embodiment of the invention.The device of the backlight module 100d device with backlight module 100a haply is identical, and main difference is that the fixed mechanism 116d of backlight module 100d is different from the fixed mechanism 116a of backlight module 100a.Fixed mechanism 116d comprises top board 120d, two interior plate 126d and 130d and outer panel 136d.Top board 120d is to be that the mode of L type engages and forms by part 122d and 124d to be essence equally.Interior plate 126b and 130d extend downwards from the part 122d of top board 120d and the inner side edge of 124d respectively, and outer panel 136d then extends downwards from the outer side edges of the part 122d of top board 120d.The outer side edges of the part 124d of interior plate 126d, top board 120d and outer panel 136d also are provided with convex thing 128d, 134d and 140d.Being essence is that the corner of the top board 120d of L type can be provided with convex fixed sturcture 138d, and wherein convex fixed sturcture 138d can for example be the convex column structure.In the present embodiment, fixed mechanism 140d only has an outer panel 136d.Yet, more noticeablely be, in the present invention, fixed mechanism only has the function that top board and single interior plate can provide lightguide plate fixing and fluorescent tube board holder, therefore can be according to the demand of structural strength, set up interior plate and/or one or more outer panel, it is described to be not limited to the foregoing description.
With respect to the convex thing 128d of the interior plate 126d of fixed mechanism 116d, base plate 104 also is provided with opening 150d; And with respect to the convex thing 134d of the part 124d of top board 120d and the convex thing 140d of outer panel 136d, sidewall 106 also is provided with opening 152d and 154d.During installing fixed mechanism 116d, the lower edge of interior plate 126d passes opening 150d together with the convex thing 128d on it, and make convex thing 128d holding at opening 150d edge, the convex thing 140d of the convex thing 134d of top board 120d and outer panel 136d then is entrenched in respectively among the opening 152d and 154d of sidewall 106, and fixed mechanism 116d is fixed on the backboard 102 effectively, and then fluorescent tube board holder 114 is fixed on the corner of backboard 102.
After waiting to finish being provided with of light guide plate, optionally blooming piece is laid on light guide plate and the fixed mechanism.With reference to the backlight module 100e of Fig. 5 is that fixed mechanism 116a with first kind of embodiment illustrates.After light guide plate 108 is inserted backboard 102, blooming piece 142 and 144 can be laid on light guide plate 108 and the fixed mechanism 116a.What should note a bit is, blooming piece 142 and 144 setting are whether, kind and quantity can adjust according to the demand of liquid crystal indicator, even can need not to be provided with any blooming piece.Position corresponding to fixed mechanism 116a, the corner of blooming piece 142 and 144 peripheries is provided with two lugs 146 and 148 respectively, convex fixed sturcture 138a corresponding to each fixed mechanism 116a, these lugs 146 and 148 also are respectively equipped with through hole 156 and 158, and wherein these convex fixed sturctures 138a can be located in respectively in the through hole 156 and 158 of corresponding lug 146 and 148.Like this, by end face 120a and the lug 146 of blooming piece 142 and 144 and 148 the corresponding design of fixed mechanism 116a, blooming piece 142 and 144 can be positioned on the light guide plate 108 effectively.Because the convex fixed sturcture 138a of fixed mechanism 126a can locate blooming piece 142 and 144 effectively, so blooming piece 142 and 144 can setting in advance before follow-up glue frame (not shown) installing, thereby can insert in the glue frame.In addition, the lug 146 and 148 of blooming piece 142 of the present invention and 144 location usefulness is the non-light-emitting areas that are positioned at the corner of backlight module 100a, therefore can improve light leakage phenomena.And, in this kind locator meams, blooming piece 142 and 144 is not to be completely fixed and can not to move, but on certain limit the extending or receipts that contract, therefore can improve blooming piece 142 and 144 and cause the wavy curling phenomenon of expanding with heat and contract with cold and being produced because of temperature variation.
In the present invention, the design of the convex fixed sturcture that the top board of fixed mechanism is set and the corner lug of blooming piece periphery can be changed according to making or assembling demand, as long as convex fixed sturcture and lug can be worked in coordination, get final product and can reach effective location blooming piece, and the quantity of the convex fixed sturcture of fixed mechanism can be not limited to one at the non-light-emitting area in corner.Therefore, a feature of the present invention just is to provide a kind of backlight module and the application on liquid crystal indicator thereof, and the lug that is used for fixing the blooming piece of backlight module is provided in a side of the non-light-emitting area place in backlight module corner.
By the invention described above preferred embodiment as can be known, an advantage of the present invention is exactly because backlight module of the present invention has the non-light-emitting area that fixed mechanism is arranged on the backlight module corner, simultaneously lightguide plate fixing and fluorescent tube board holder, and need not the moulding that design in addition cuts light guide plate, more can not influence the ornaments zone of fluorescent tube.Therefore,, can simplify the moulding of light guide plate, and can save the expense that cuts of light guide plate, can reduce the restriction that fluorescent tube is put the district simultaneously, thereby can save the space by the utilization of fixed mechanism.
By the invention described above preferred embodiment as can be known, another advantage of the present invention is exactly because the end face of this backlight module set fixed mechanism in the corner is provided with the convex fixed sturcture, this not only can locate the position of blooming piece effectively at the non-light-emitting area in corner, and blooming piece can be inserted in the glue frame.Therefore, not only can improve blooming piece effectively and be wavy curling phenomenon, also can avoid being provided with in the luminous zone light leak problem that lug caused of location usefulness because of blooming piece.
By the invention described above preferred embodiment as can be known, another advantage of the present invention is exactly because utilize fixed mechanism to fix light guide plate, and need not by double faced adhesive tape, this is the heavy industry height not only, and man-hour can be saved, also can avoid causing the vision taste not good, and then reach the purpose of the display quality that promotes liquid crystal indicator.
By the invention described above preferred embodiment as can be known, an advantage more of the present invention is exactly because of the installing by fixed mechanism, other member of fluorescent tube board holder and backlight module is combined closely, therefore can increase the heat dissipation of fluorescent tube board holder, the life of product that effectively prolongs liquid crystal indicator.
Though the present invention discloses with a preferred embodiment; but it is not in order to qualification the present invention, any those skilled in the art, without departing from the spirit and scope of the present invention; can make various changes and retouching, so protection scope of the present invention is defined with the accompanying Claim scope.
Claims (22)
1. backlight module comprises at least:
One backboard has a base plate and a plurality of sidewalls that are around in the periphery of described base plate;
One first light tube group and one second light tube group, be around on the medial surface of described sidewall, two ends of described first light tube group are respectively adjacent to two ends in described second light tube group, and wherein said first light tube group and described second light tube group include at least one fluorescent tube and be located at two fluorescent tube board holders of described light tube group two ends respectively;
Two fixed mechanisms, be located at respectively on the described fluorescent tube board holder of the described fluorescent tube board holder of described first light tube group and contiguous described second light tube group, wherein each described fixed mechanism at least one interior plate of having a top board and extending downwards from an inner side edge of described top board; And
One light guide plate is located on the described base plate of described backboard, and between described first light tube group, described second light tube group and described fixed mechanism.
2. backlight module as claimed in claim 1, wherein said at least one fluorescent tube are that an essence is the fluorescent tube of L type.
3. backlight module as claimed in claim 1, at least one fluorescent tube of wherein said first light tube group are linear pattern fluorescent tubes, and at least one fluorescent tube of second light tube group is a ㄈ font fluorescent tube.
4. backlight module as claimed in claim 1, wherein said at least one fluorescent tube is made up of a cold-cathode tube.
5. backlight module as claimed in claim 1, wherein said base plate also are provided with one first junction surface, and the interior plate correspondence is provided with one second junction surface, and first junction surface engages one another with second junction surface.
6. backlight module as claimed in claim 5, wherein said first junction surface is an opening, and second junction surface is a convex thing that is convexly equipped with on interior plate, and the lower edge of interior plate and convex thing pass opening, and make the holding of convex thing at edge of opening.
7. backlight module as claimed in claim 1, wherein each described fixed mechanism also comprises the outer panel that an at least one outer side edges from top board is extended downwards, this outer panel between the fluorescent tube board holder one of at least and sidewall one of at least between.
8. backlight module as claimed in claim 7, wherein said outer panel are provided with one first junction surface, and sidewall is provided with corresponding at least one second junction surface, and first junction surface engages one another with second junction surface.
9. liquid crystal indicator comprises at least:
One backlight module comprises at least:
One backboard has a base plate and a plurality of sidewalls that are around in the periphery of described base plate;
One first light tube group and one second light tube group, be around on the medial surface of described sidewall, two ends of described first light tube group are respectively adjacent to two ends in described second light tube group, and wherein said first light tube group and described second light tube group include at least one fluorescent tube and be located at two fluorescent tube board holders of described light tube group two ends respectively;
Two fixed mechanisms, be located on the described fluorescent tube board holder of the described fluorescent tube board holder of described first light tube group and contiguous described second light tube group at least one interior plate that wherein said fixed mechanism has a top board and extends from an inner side edge of described top board respectively downwards; And
One light guide plate is located on the described base plate of described backboard, and between described first light tube group, described second light tube group and described fixed mechanism; And
One display panels is located on the described backlight module.
10. liquid crystal indicator as claimed in claim 9, wherein said at least one fluorescent tube are that at least one essence is the fluorescent tube of L type.
11. liquid crystal indicator as claimed in claim 9, wherein said base plate also is provided with an opening, and at least one interior plate correspondence convexes with a convex thing, and the lower edge of at least one interior plate and convex thing pass opening, and make the holding of convex thing at edge of opening.
12. liquid crystal indicator as claimed in claim 9, wherein each described fixed mechanism also comprises at least one outer panel that extends from an outer side edges of top board downwards, this at least one outer panel between the fluorescent tube board holder one of at least and sidewall one of at least between.
13. liquid crystal indicator as claimed in claim 12, wherein said at least one outer panel is provided with at least one first junction surface, and sidewall is provided with corresponding at least one second junction surface, and at least one first junction surface engages one another with at least one second junction surface.
14. liquid crystal indicator as claimed in claim 9, an interior plate of wherein said fixed mechanism also comprises an interior plate, is provided with one of at least one first junction surface in the interior plate; And base plate also is provided with second junction surface corresponding to first junction surface, and wherein first junction surface engages one another with second junction surface.
15. liquid crystal indicator as claimed in claim 14, wherein each described fixed mechanism also comprises two outer panels that extend from an outer side edges of top board at least downwards, and correspond respectively to interior plate, outer panel is between the sidewall of fluorescent tube board holder and backboard, and contiguous fluorescent tube board holder is folded in respectively between interior plate and the corresponding outer panel.
16. liquid crystal indicator as claimed in claim 15, wherein said outer panel be provided with one of at least one the 3rd junction surface; Sidewall then is provided with the 4th junction surface corresponding to the 3rd junction surface, and wherein the 3rd junction surface engages one another with the 4th junction surface.
17. liquid crystal indicator as claimed in claim 15, wherein said end face has a first and a second portion that engages one another, it is the L type that first and second portion are bonded into an essence, wherein the second portion of the first of end face, end face and outer panel extend along sidewall respectively, and at least one fluorescent tube of first light tube group and at least one fluorescent tube of second light tube group are lived in shielding.
18. liquid crystal indicator as claimed in claim 17, the downside of wherein said top board and the medial surface of outer panel are equipped with a reflective film.
19. liquid crystal indicator as claimed in claim 9, wherein the top board of each described fixed mechanism also comprises at least one convex fixed sturcture.
20. liquid crystal indicator as claimed in claim 9, wherein said backlight module also comprises at least one blooming piece, is located on light guide plate and the fixed mechanism, and the convex fixed sturcture can be fixed at least one blooming piece.
21. liquid crystal indicator as claimed in claim 20, the periphery of wherein said at least one blooming piece also have at least two lugs corresponding at least one convex fixed sturcture of each fixed mechanism.
22. liquid crystal indicator as claimed in claim 21, wherein each described lug comprises at least one through hole, correspond respectively at least one convex fixed sturcture of each fixed mechanism, at least one convex fixed sturcture of each fixed mechanism is located at least one through hole of corresponding lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101009704A CN101118339A (en) | 2006-08-04 | 2006-08-04 | Backlight module and LCD device using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2006101009704A CN101118339A (en) | 2006-08-04 | 2006-08-04 | Backlight module and LCD device using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101118339A true CN101118339A (en) | 2008-02-06 |
Family
ID=39054518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101009704A Pending CN101118339A (en) | 2006-08-04 | 2006-08-04 | Backlight module and LCD device using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101118339A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061498A (en) * | 2014-05-23 | 2014-09-24 | 瑞仪光电股份有限公司 | Back plate assembly and backlight module |
| CN104712975A (en) * | 2015-04-07 | 2015-06-17 | 合肥京东方光电科技有限公司 | Backlight module and display device |
| CN106918943A (en) * | 2015-12-24 | 2017-07-04 | 乐金显示有限公司 | Optical sheet and the display device with the optical sheet |
| CN113219692A (en) * | 2021-03-25 | 2021-08-06 | 武汉华星光电技术有限公司 | Display module and display system |
-
2006
- 2006-08-04 CN CNA2006101009704A patent/CN101118339A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104061498A (en) * | 2014-05-23 | 2014-09-24 | 瑞仪光电股份有限公司 | Back plate assembly and backlight module |
| CN104061498B (en) * | 2014-05-23 | 2017-06-06 | 瑞仪(广州)光电子器件有限公司 | Back plate assembly and backlight module |
| US9989695B2 (en) | 2014-05-23 | 2018-06-05 | Radiant Opto-Electronics Corporation | Back plate assembly and backlight module |
| CN104712975A (en) * | 2015-04-07 | 2015-06-17 | 合肥京东方光电科技有限公司 | Backlight module and display device |
| CN106918943A (en) * | 2015-12-24 | 2017-07-04 | 乐金显示有限公司 | Optical sheet and the display device with the optical sheet |
| CN106918943B (en) * | 2015-12-24 | 2020-12-22 | 乐金显示有限公司 | Optical sheet and display device having the same |
| CN113219692A (en) * | 2021-03-25 | 2021-08-06 | 武汉华星光电技术有限公司 | Display module and display system |
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Application publication date: 20080206 |