CN102425743B - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN102425743B CN102425743B CN201110369749.XA CN201110369749A CN102425743B CN 102425743 B CN102425743 B CN 102425743B CN 201110369749 A CN201110369749 A CN 201110369749A CN 102425743 B CN102425743 B CN 102425743B
- Authority
- CN
- China
- Prior art keywords
- protuberance
- backboard
- guide plate
- light guide
- sidewall
- 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.)
- Expired - Fee Related
Links
- 230000000994 depressogenic effect Effects 0.000 claims description 15
- 230000004888 barrier function Effects 0.000 description 22
- 239000004973 liquid crystal related substance Substances 0.000 description 11
- 238000005452 bending Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 5
- 230000004308 accommodation Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Abstract
The invention discloses a backlight module, which comprises: a frame having a first protrusion protruding in a first direction; a light guide plate arranged in the frame; and a back plate, which is combined to the frame to cover the light guide plate and is at least provided with an opening and a second protruding part, wherein the back plate is provided with a side wall, the opening is positioned between one side of the light guide plate and the side wall of the back plate, the second protruding part protrudes towards the opposite direction of the first direction, the first protruding part and the second protruding part are adjacent and arranged between the side wall of the back plate and the light guide plate, and the light leakage problem of the backlight module is improved.
Description
Technical field
The present invention relates to a kind of backlight module, and particularly relate to a kind of backlight module of avoiding light leak.
Background technology
Along with the development of luminescence technology, liquid crystal display is for example applied in, on various information processors (, Smartphone, panel computer, notebook computer, guider etc.) widely in recent years.Current liquid crystal display major part is all using the frivolous demand as product.In general, common liquid crystal display is to adopt the framework of thin film transistor (TFT), and therefore, need to the arrange in pairs or groups light source of backlight module of liquid crystal display, to reach the effect of video picture.
Because frivolous designer trends, in the design of part backlight module, adopt the holes design of (or claiming opening) at backboard place.But after the design of holes causes backlight module to be lighted, have the light of part to be leaked by broken hole position, cause the problem of backlight module light leak.
Please refer to Fig. 1, the diagrammatic cross-section of the partial structurtes of the backlight module that Fig. 1 is prior art.Framework 120 and backboard 130 may be because assembling, external force apply or the problem such as manufacture craft error, make the gap 10 between framework 120 and backboard 130 excessive, cause light 111 to pass through described gap 10 from the side of light guide plate 110, leaked to the outside of backlight module 101 by holes 136 places, and produce the problem of light leak.
In the backboard 130 of part designs at present, in order to solve above-mentioned light leak problem, adopt the mode of coated holes 136 to overcome, namely need on backboard 130, stamp out an elevated regions in the position of corresponding screw boss 180, so that elevated regions can hold described screw boss 180, and then coated described holes 136.
But current backboard 130 is metal material mostly, therefore need more complicated operation in the manufacture craft of backboard 130 except causing, and elevated regions has also increased the thickness of backlight module 101.In addition, in order to coordinate described elevated regions, also need corresponding sidewall shape of modifying shell 160, increase thus the puzzlement of backlight module 101 on making.
Summary of the invention
The object of the present invention is to provide a kind of backlight module, in the aperture position place of backboard, by the combination of the projective structure on bathtub construction and backboard on framework, to stop the light that may be leaked by aperture position place in backlight module, and then improve the light leak problem of backlight module.
Therefore, backlight module of the present invention includes: framework, light guide plate and backboard.Framework, has the first protuberance protruding towards first direction.Light guide plate, is arranged in framework, can be in order to directing light.Backboard, be bonded to framework and cover light guide plate, at least have an opening and the second protuberance on backboard, its split shed is positioned at a side of light guide plate, the second protuberance protrudes towards the opposite direction of first direction, and the first protuberance is adjacent with the second protuberance and be arranged between opening and light guide plate.Thus, the first protuberance and the second protuberance can be in order to stop that the light that light guide plate is guided is appeared by opening.
In sum, backlight module of the present invention, form and protrude structure respectively at forming on framework near the aperture position of recess configurations and backboard, and described protrusion structure is stretched in described recess configurations, to stop the light that may be leaked by aperture position place in backlight module.Particularly, after the combination of the structure of the protrusion on recess configurations and the backboard on framework, can limit shift length or the space of protruding structure by recess configurations, to promote the steadiness of backboard and frame assembled.It is worth mentioning that, the protrusion structure on backboard is to extend (towards backlight module inside, namely towards the bending of light guide plate direction) towards framework direction, therefore, can't increase the thickness of backlight module, also can meet compact designer trends.
For above and other object of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate appended accompanying drawing, be described in detail below.
Brief description of the drawings
Fig. 1 is the diagrammatic cross-section of the partial structurtes of the backlight module of prior art;
Fig. 2 A is the schematic appearance of the partial structurtes of the backlight module of first embodiment of the invention;
Fig. 2 B is the schematic appearance of the partial structurtes of the backlight module of another embodiment of the present invention;
Fig. 3 A is the diagrammatic cross-section of the partial structurtes of the backlight module of first embodiment of the invention;
Fig. 3 B is the diagrammatic cross-section of the partial structurtes of the backlight module of second embodiment of the invention;
Fig. 3 C is the diagrammatic cross-section of the partial structurtes of the backlight module of third embodiment of the invention;
Fig. 3 D is the diagrammatic cross-section of the partial structurtes of the backlight module of fourth embodiment of the invention.
Main element symbol description
10 gaps
100 backlight modules
101 backlight modules
102 backlight modules
11 light guide plate
110 light guide plate
111 light
12 frameworks
120 frameworks
121 first protuberances
122 the 3rd protuberances
123 allow bit space
13 backboards
130 backboards
131 openings
132 second protuberances
The 132 ' second protuberance
133 depressed parts
134 depressed parts
135 sidewalls
136 holes
14 recess configurations
14 ' recess configurations
14 " recess configurations
141 the first side walls
142 second sidewalls
143 sidewalls
144 sidewalls
15 liquid crystal panels
16 shells
160 shells
161 perforates
162 sidewalls
18 fixed orifices
180 screw boss
19 optical diaphragm group
Embodiment
Please refer to Fig. 2 A, the local appearance schematic diagram that Fig. 2 A is first embodiment of the invention.As shown in Figure 2 A, the backlight module 100 of first embodiment of the invention includes light guide plate 11 (as shown in Figure 3A), framework 12 (as shown in Figure 3A), backboard 13, shell 16 and fixed orifice 18.
The light that light guide plate 11 can be produced by light source (not shown) in order to guiding.The kind of described light source can comprise but not be restricted to the other types such as light emitting diode, laser diode.Described light source can adopt monochromatic light or the mixed lights such as red, blue, green, white.The macromolecule material that light guide plate 11 can be polymethylmethacrylate (PMMA) forms.
Light guide plate 11 is arranged in framework 12 (can correspondence consult Fig. 3 A); framework 12 can be in order to support or to protect the light guide plate 11 being arranged at wherein; or the element in other backlight modules 100, for example, optical diaphragm group 19 (as shown in Figure 3A) etc.Framework 12 can be plastic cement or resin material forms.Framework 12 can adopt injection molded (injection molding) fabrication techniques to form.
Backboard 13 is arranged at the below (can correspondence consult Fig. 3 A) of framework 12.Backboard 13 can be metal material (for example, aluminium sheet) and forms.Backboard 13 is bonded to framework 12 and covers described light guide plate 11.Backboard 13 has sidewall 135, and is provided with fixed orifice 18 on the sidewall 135 of backboard 13.On backboard 13, the position of corresponding fixed orifice 18 has an opening 131, allows the aspect of bit space to form.Form and allow bit space make fixed orifice 18 can be exposed to backboard 13 by opening 131, the problem interfering with each other to solve fixed orifice 18 and backboard 13.For example, the bottom surface of backboard 13 is provided with opening 131, and sidewall 135 is connected with bottom surface and have angle, and can make fixed orifice 18 be exposed to backboard 13 by the opening 131 of bottom surface.It should be noted that on framework 12 and have towards the first protuberance 121 of first direction (towards backboard 13 directions) protrusion.Furtherly, the first described protuberance 121 is exposed to extend by opening 131 and protrudes, and the first protuberance 121 has the rough the first side wall 141 parallel with the sidewall 135 of backboard 13 with the sidewall 135 of backboard 13 vertical an opposing sidewalls 143 and sidewall 144 rough with two.Described sidewall 143 and sidewall 144 are formed at respectively the two ends of the first side wall 141.
Shell 16 is arranged at the top (can consult in advance Fig. 3 A) of framework 12.After shell 16 and backboard 13 combinations, can form an accommodation space.Described accommodation space can hold light guide plate 11, framework 12 and other elements (for example, optical diaphragm group 19, light source etc.), to support or to protect the element being contained in wherein.On 162 of the sidewalls of shell 16, offer a perforate 161.The position of described perforate 161 is corresponding with the position of fixed orifice 18.The aperture of perforate 161 is approximately slightly larger than the aperture of described fixed orifice 18.Shell 16 can be metal material and forms.
As mentioned above, fixed orifice 18 is arranged on the sidewall 135 of backboard 13, and furtherly, one section of preset distance is extended at fixed orifice 18 opening 131 places towards backboard 13.Fixed orifice 18 can be in order to provide fixture (not shown) to penetrate.The inwall alternative of described fixed orifice 18 is formed with screw thread, penetrates rear admittedly locking in fixed orifice 18 for fixture.Described fixture can be for example the solid latch fitting of other similar quality such as screw or rivet.Fixed orifice 18 can be metal material and forms.
In addition, on a side of backboard 13 adjacent openings 131, be formed with a depressed part 133.Centered by the position of opening 131, one section of preset distance is extended respectively at the two ends of depressed part 133.The shape of a rectangle of the rough one-tenth of outward appearance of described depressed part 133.Described depressed part 133 can be formed by metal stamping mode.
The two ends of depressed part 133 also can be circular-arc.As shown in Figure 2 B, in the backlight module 102 of an alternative embodiment of the invention, turning rough 90 degree in the two ends of depressed part 134, and extend towards sidewall 135 directions of backboard 13 respectively, and then surround described opening 131.Described depressed part 133 belongs to a part for backboard 13, and is formed at the lower surface of backboard 13, is formed with the second protuberance 132 corresponding to the upper surface of the backboard 13 of the position of depressed part 133.
In addition, in above-mentioned Fig. 2 A or Fig. 2 B, the position of fixed orifice 18, only for illustrating, not, in order to as restrictive condition, therefore, can increase or reduce according to design requirement the quantity of fixed orifice, and adjust the position of fixed orifice 18.
Next, please refer to Fig. 3 A, the diagrammatic cross-section of the partial structurtes of the backlight module that Fig. 3 A is first embodiment of the invention.The diagrammatic cross-section of Fig. 3 A is to see along Fig. 2 A section line A-A '.
After shell 16 and backboard 13 combinations, can form an accommodation space.In described accommodation space, can be provided with light guide plate 11, framework 12 and liquid crystal panel 15.Furtherly, between framework 12 and backboard 13, light guide plate 11 is installed.Between framework 12 and backboard 16, liquid crystal panel 15 is installed.Described liquid crystal panel 15 is positioned at the top of light guide plate 11.
On the sidewall 162 of shell 16, offer a perforate 161, with the position of corresponding fixed orifice 18.After shell 16 and backboard 13 combinations, perforate 161 can be exposed fixed orifice 18.On the sidewall of framework 12, be formed with little another in large end of mouth and allow bit space 123, with the part of the accommodating fixed orifice 18 of correspondence.Furtherly, described can the be coated and fixed part in hole 18 of bit space 123 that allows.Fixed orifice 18 is extended towards the direction of framework 12 by the sidewall 135 of backboard 13, to embed described allowing in bit space 123.
Framework 12 can be in order to support liquid crystal panel 15, with guarantee liquid crystal panel 15 can be between framework 12 and shell 16 strong fix.On framework 12, there is the first protuberance 121 and the 3rd protuberance 122 that protrude towards first direction (towards backboard 13 directions).The rough normal vector that is parallel to light guide plate 11 of described first direction.It is other that the 3rd protuberance 122 is positioned at light guide plate 11.The 3rd protuberance 122 props up the upper surface of backboard 13 haply.Between the 3rd protuberance 122 and the sidewall 135 of backboard 13, there is the first protuberance 121 protruding towards first direction.Furtherly, the first protuberance 121 is inserted in opening 131, and rough the 3rd protuberance 122 of being longer than of the length of the first protuberance 121.It should be noted that the first protuberance 121 and a recess configurations 14 of the 3rd protuberance 122 common formation of framework 12.Described recess configurations 14 has the rough the first side wall 141 parallel with the sidewall 135 of backboard 13 and the second sidewall 142.
As mentioned above, on backboard 13, there is an opening 131 and the second protuberance 132 corresponding to the position of fixed orifice 18.Opening 131 is between a side of light guide plate 11 and the sidewall 135 of backboard 13.Furtherly, opening 131 is between the sidewall 135 and depressed part 133 of backboard 13.The second protuberance 132 is between the first protuberance 121 and the 3rd protuberance 122.The second protuberance 132 protrudes towards the opposite direction of the first direction direction of light guide plate 11 (towards).The first protuberance 121 is adjacent with the second protuberance 132 and be arranged between the sidewall 132 and light guide plate 11 of backboard 13.The first protuberance 121 and the second protuberance 132 are appeared by opening 131 in order to the light (or other anti-/ refracted rays of backlight module 100 inside) that stops light guide plate 11 and guide.
As shown in Figure 3A, in particular, first extend towards vertical axial bending one end of backboard 13, then be formed with the second protuberance 132 after horizontal axis bending is extended.The second protuberance 132 on backboard 13 stretches between the first side wall 141 and the second sidewall 142 of recess configurations 14, and wherein the first side wall 141 and the second protuberance 132 preferablies are close to each other as far as possible or are close to, to avoid producing gap.The first side wall 141, the second protuberance 132 is adjacent with the second sidewall 142 and be arranged between opening 131 and light guide plate 11.The first protuberance 121, the second protuberance 132 and the 3rd protuberance 122 are appeared by opening 131 in order to the light (or other anti-/ refracted rays of backlight module 100 inside) that stops light guide plate 11 and guide.What specify is, the first protuberance 121, the second protuberance 132 and three layers of structure stopping of the 3rd protuberance 122 common formation, wherein the 3rd protuberance 122 is that ground floor barrier structure, the second protuberance 132 are that second layer barrier structure, the first protuberance 121 are the 3rd layer of barrier structure.The 3rd protuberance 122 and the second protuberance 132 can completely or stop most light leakage phenomena.If there is the light of part when leaking between the 3rd protuberance 122 and the second protuberance 132, can again stop the light by leakage between the 3rd protuberance 122 and the second protuberance 132 by being equivalent to the first protuberance 121 of barrier wall structure.Thus, the individual layer barrier structure that the first embodiment of the present invention is compared to prior art by three layers of barrier structure has the better effect that prevents light leak.In addition, the structure of the second described protuberance 132 also can adopt metal stamping mode to form.
It is worth mentioning that, shift length or the space that can limit haply the second protuberance 132 of backboard 13 due to recess configurations 14, therefore, can avoid producing the problem of the excesssive gap between framework 12 and backboard 13, relatively promote the steadiness that backboard 13 and framework 12 are assembled.In addition, if while having other design consideration, in another embodiment of the present invention, also can omit liquid crystal panel 15.
Please refer to Fig. 3 B, the diagrammatic cross-section of the partial structurtes of the backlight module that Fig. 3 B is second embodiment of the invention.The difference of second embodiment of the invention and the first embodiment is: one of the structure bending of the second protuberance 132 ' in the second embodiment is axial.Distance between the first side wall 141 of recess configurations 14 ' and the second sidewall 142 is also less than the distance between the first side wall 141 and second sidewall 142 of recess configurations 14.Remainder structure is identical with the first embodiment, below repeats no more.
On backboard 13, there is an opening 131 and the second protuberance 132 ' corresponding to the position of fixed orifice 18.Opening 131 is positioned at a side of light guide plate 11.Further, opening 131 is between the sidewall and depressed part 133 of shell 16.The second protuberance 132 ' is between the first protuberance 121 and the 3rd protuberance 122.The second protuberance 132 ' protrudes towards the opposite direction of the first direction direction of light guide plate 11 (towards).The first protuberance 121 is adjacent with the second protuberance 132 ' and be arranged between opening 131 and light guide plate 11.The first protuberance 121 and the second protuberance 132 ' are appeared by opening 131 in order to the light (or other anti-/ refracted rays of backlight module 100 inside) that stops light guide plate 11 and guide.
As shown in Figure 3 B, in particular, one end of backboard 13 is formed with the second protuberance 132 ' after vertical axial bending is extended.The second protuberance 132 ' on backboard 13 stretches into recess configurations 14 " the first side wall 141 and the second sidewall 142 between, wherein the first side wall 141 and the second protuberance 132 ' preferably are close to each other as far as possible or be close to, to avoid producing gap.The first side wall 141, the second protuberance 132 ' is adjacent with the second sidewall 142 and be arranged between opening 131 and light guide plate 11.The first protuberance 121, the second protuberance 132 ' and the 3rd protuberance 122 are appeared by opening 131 in order to the light (or other anti-/ refracted rays of backlight module 100 inside) that stops light guide plate 11 and guide.What specify is, the first protuberance 121, the second protuberance 132 ' and three layers of structure stopping of the 3rd protuberance 122 common formation, wherein the 3rd protuberance 122 is that ground floor barrier structure, the second protuberance 132 ' are that second layer barrier structure, the first protuberance 121 are the 3rd layer of barrier structure.The 3rd protuberance 122 and the second protuberance 132 ' can completely or stop most light leakage phenomena.If there is the light of part when leaking between the 3rd protuberance 122 and the second protuberance 132 ', can again stop the light by leakage between the 3rd protuberance 122 and the second protuberance 132 ' by being equivalent to the first protuberance 121 of barrier wall structure.Thus, the second embodiment of the present invention has the better effect that prevents light leak by three layers of barrier structure compared to the individual layer barrier structure of prior art.
Then, please refer to Fig. 3 C, the diagrammatic cross-section of the partial structurtes of the backlight module that Fig. 3 C is third embodiment of the invention.The difference of third embodiment of the invention and the first embodiment is: Fig. 3 C middle frame 12 has omitted the structure of the 3rd protuberance 122, and remainder structure is identical with the first embodiment, below repeats no more.
The first protuberance 121 of framework 12 forms a recess configurations 14 ".Described recess configurations 14 " there is the first side wall 141.First extend towards vertical axial bending one end of backboard 13, then be formed with the second protuberance 132 after horizontal axis bending is extended.The second protuberance 132 on backboard 13 stretches to recess configurations 14 " the first side wall 141 other, wherein the first side wall 141 and the second protuberance 132 preferablies are close to each other as far as possible or be close to, to avoid producing gap.The first side wall 141, the second protuberance 132 is adjacent with the second sidewall 142 and be arranged between opening 131 and light guide plate 11.The first protuberance 121 and the second protuberance 132 are appeared by opening 131 in order to the light that stops light guide plate 11 and guide.Special instruction, the first protuberance 121 and a structure that bilayer stops of the second protuberance 132 common formation, wherein the second protuberance 132 is that ground floor barrier structure, the second protuberance 132 are second layer barrier structure.The second protuberance 132 can completely or stop most light leakage phenomena.If while having the light of part to be leaked by the second protuberance 132, can again stop by the first protuberance 121 that is equivalent to barrier wall structure the light being leaked by the second protuberance 132.Thus, the third embodiment of the present invention still has the better effect that prevents light leak by double-deck barrier structure compared to the individual layer barrier structure of prior art.
Next, please refer to Fig. 3 D, the diagrammatic cross-section of the partial structurtes of the backlight module that Fig. 3 D is fourth embodiment of the invention.The difference of fourth embodiment of the invention and the 3rd embodiment is: one of the structure bending of the second protuberance 132 ' in the 4th embodiment is axial.Remainder structure is identical with the 3rd embodiment, below repeats no more.
One end of backboard 13 is formed with the second protuberance 132 ' after vertical axial bending is extended.The second protuberance 132 ' on backboard 13 stretches to recess configurations 14 " the first side wall 141 other, wherein the first side wall 141 and the second protuberance 132 ' preferably are close to each other as far as possible or be close to, to avoid producing gap.The first side wall 141 is adjacent with the second protuberance 132 ' and be arranged between opening 131 and light guide plate 11.The first protuberance 121 and the second protuberance 132 ' are appeared by opening 131 in order to the light (or other anti-/ refracted rays of backlight module 100 inside) that stops light guide plate 11 and guide.Special instruction, the first protuberance 121 and the second protuberance 132 ' form the structure that a bilayer stops jointly, and wherein the second protuberance 132 ' is that ground floor barrier structure, the first protuberance 121 are second layer barrier structure.The second protuberance 132 ' can completely or stop most light leakage phenomena.If while having the light of part to be leaked by the second protuberance 132 ', can again stop by being equivalent to the first protuberance 121 of barrier wall structure the light being leaked by the second protuberance 132 '.Thus, the fourth embodiment of the present invention still has the better effect that prevents light leak by double-deck barrier structure compared to the individual layer barrier structure of prior art.
In sum, backlight module of the present invention, form and protrude structure respectively at forming on framework near the aperture position of recess configurations and backboard, and described protrusion structure is stretched in described recess configurations, to stop the light that may be leaked by aperture position place in backlight module.Particularly, after the combination of the structure of the protrusion on recess configurations and the backboard on framework, can limit shift length or the space of protruding structure by recess configurations, to promote the steadiness of backboard and frame assembled.It is worth mentioning that, the protrusion structure on backboard is to extend (towards backlight module inside, namely towards the bending of light guide plate direction) towards framework direction, therefore, can't increase the thickness of backlight module, also can meet compact designer trends.
Although disclosed the present invention in conjunction with above preferred embodiment; but it is not in order to limit the present invention, be anyly familiar with this operator, without departing from the spirit and scope of the present invention; can do a little change and retouching, therefore protection scope of the present invention should with enclose claim was defined is as the criterion.
Claims (5)
1. a backlight module, it comprises:
Framework, has one first protuberance protruding towards a first direction on this framework;
Light guide plate, is arranged in this framework; And
Backboard, be bonded to this framework and cover this light guide plate, on this backboard, at least there is an opening and one second protuberance, wherein this backboard has a sidewall, this opening is between a side of this light guide plate and this sidewall of this backboard, this second protuberance protrudes towards the opposite direction of this first direction, and this first protuberance is adjacent with this second protuberance and be arranged between this sidewall and this light guide plate of this backboard;
Wherein this framework also has one the 3rd protuberance protruding towards this first direction, the common recess configurations that forms of this first protuberance and the 3rd protuberance, and this recess configurations has a first side wall and one second sidewall; And
Wherein this second protuberance on this backboard stretches between this first side wall and this second sidewall, and this first side wall, this second protuberance is adjacent with this second sidewall and be arranged between this sidewall and this light guide plate of this backboard; And
Wherein the first protuberance and the second protuberance are appeared by opening in order to stop the light that light guide plate guides.
2. a backlight module, it comprises:
Framework, has one first protuberance protruding towards a first direction on this framework;
Light guide plate, is arranged in this framework; And
Backboard, be bonded to this framework and cover this light guide plate, on this backboard, at least there is an opening and one second protuberance, wherein this backboard has a sidewall, this opening is between a side of this light guide plate and this sidewall of this backboard, this second protuberance protrudes towards the opposite direction of this first direction, and this first protuberance is adjacent with this second protuberance and be arranged between this sidewall and this light guide plate of this backboard;
Wherein this first protuberance of this framework forms a recess configurations, and this recess configurations has a first side wall; And
Wherein this second protuberance on this backboard stretches to by this first side wall, this second protuberance is adjacent with this first side wall and be arranged between this sidewall and this light guide plate of this backboard, and the second protuberance stretches in described recess configurations, to stop the light being leaked by aperture position place in backlight module; And
Wherein the first protuberance and the second protuberance are appeared by opening in order to stop the light that light guide plate guides.
3. backlight module as claimed in claim 1 or 2, wherein this first direction is parallel to the normal vector of this light guide plate.
4. backlight module as claimed in claim 1 or 2 is wherein formed with a depressed part on a side of contiguous this opening of the lower surface of this backboard, and this second protuberance is formed at the upper surface corresponding to the backboard of the position of this depressed part.
5. backlight module as claimed in claim 4, wherein transfer and extend towards this sidewall direction of this backboard respectively in the two ends of this depressed part, and then surround this opening.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100136145 | 2011-10-05 | ||
| TW100136145A TWI446072B (en) | 2011-10-05 | 2011-10-05 | Backlight module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102425743A CN102425743A (en) | 2012-04-25 |
| CN102425743B true CN102425743B (en) | 2014-10-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110369749.XA Expired - Fee Related CN102425743B (en) | 2011-10-05 | 2011-11-18 | Backlight module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102425743B (en) |
| TW (1) | TWI446072B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI456314B (en) * | 2012-05-11 | 2014-10-11 | Au Optronics Corp | Backlight module |
| CN103198953B (en) * | 2013-02-22 | 2015-04-01 | 苏州达方电子有限公司 | Illuminant keyboard module and illuminant keyboard with same |
| CN105372863A (en) * | 2015-12-03 | 2016-03-02 | 微鲸科技有限公司 | Ultrathin LCD device and all-in-one machine having same |
| TWI789258B (en) * | 2022-03-01 | 2023-01-01 | 香港商冠捷投資有限公司 | display frame |
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| TW200914932A (en) * | 2007-09-28 | 2009-04-01 | Au Optronics Corp | Backlight module and the structure to protect the light source module |
| CN102121623A (en) * | 2010-11-29 | 2011-07-13 | 友达光电股份有限公司 | LED light source structure |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20110097086A (en) * | 2010-02-24 | 2011-08-31 | 삼성전자주식회사 | Backlight assembly and display apparatus having the same |
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2011
- 2011-10-05 TW TW100136145A patent/TWI446072B/en not_active IP Right Cessation
- 2011-11-18 CN CN201110369749.XA patent/CN102425743B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1912702A (en) * | 2005-08-12 | 2007-02-14 | 群康科技(深圳)有限公司 | Backlight mould set and liquid crystal display device using the backlight mould set |
| TW200914932A (en) * | 2007-09-28 | 2009-04-01 | Au Optronics Corp | Backlight module and the structure to protect the light source module |
| CN102121623A (en) * | 2010-11-29 | 2011-07-13 | 友达光电股份有限公司 | LED light source structure |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI446072B (en) | 2014-07-21 |
| TW201316093A (en) | 2013-04-16 |
| CN102425743A (en) | 2012-04-25 |
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