CN103672627A - Display device and backlight module thereof - Google Patents

Display device and backlight module thereof Download PDF

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Publication number
CN103672627A
CN103672627A CN201410004061.5A CN201410004061A CN103672627A CN 103672627 A CN103672627 A CN 103672627A CN 201410004061 A CN201410004061 A CN 201410004061A CN 103672627 A CN103672627 A CN 103672627A
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China
Prior art keywords
face
light source
extended structure
backlight module
lgp
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Granted
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CN201410004061.5A
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Chinese (zh)
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CN103672627B (en
Inventor
李畊毅
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AU Optronics Corp
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AU Optronics Corp
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  • Planar Illumination Modules (AREA)

Abstract

The invention discloses a backlight module, which comprises a light guide plate, a light source and a back frame. The light source is arranged on one side of the light guide plate. The back frame comprises a bottom, a top, a side wall and at least one first extending structure. The bottom has opposite top and bottom surfaces. The top surface is used for bearing the light guide plate and the light source. The top is arranged relative to the bottom, and the light guide plate and the light source are located between the top and the bottom. The side wall is adjacent to the light source and is provided with a first end face and a second end face which are opposite. The first end surface is connected with the bottom part, and the second end surface is connected with the top part. The first extending structure extends out from a part of the first end surface of the side wall in a direction away from the light guide plate and the light source. The first extension structure comprises a third end surface facing the same direction as the bottom surface, and the distance between the third end surface and the top is larger than the distance between the bottom surface and the top.

Description

Display unit and backlight module thereof
Technical field
The invention relates to a kind of display unit and backlight module thereof, and particularly relevant for a kind of display unit and backlight module thereof that can effectively prevent that display floater from damaging because of external force.
Background technology
Along with electronic industry is day by day flourishing, liquid crystal indicator has become main flow in the market.Yet, because the display floater of liquid crystal indicator itself cannot be luminous, thus below display floater, must provide as the backlight module that light source is provided, and then make liquid crystal indicator reach the effect of demonstration.
The backlight module of liquid crystal indicator includes the members such as back of the body frame, light source, LGP, blooming piece and reflector plate.Wherein carry on the back frame in order to accommodating light source, LGP, blooming piece and reflector plate, and back of the body frame also has the effect of clamping light guide board, and then LGP is fixed.And light source is arranged at a side of LGP, in order to emit beam, to LGP, carry out mixed light.And liquid crystal indicator also comprises drive circuit board, be arranged at the position of backlight module bottom, the bottom of namely carrying on the back specifically frame, this drive circuit board is electrically connected at display floater, in order to drive display floater.
Yet; in order to reduce the integral thickness of liquid crystal indicator; conventionally can bend out the plummer that is used for carrying drive circuit board from part bottom surface and the part side of back of the body frame, make drive circuit board can be arranged on the side of backlight module, effectively reduce the thickness of whole liquid crystal indicator.But because plummer is to go out from part bottom surface and the bending of part side of back of the body frame, therefore, can form breach in the side of back of the body frame, in other words, by the part bottom surface of back of the body frame and the plummer that part side bends out, can cause the discontinuous of Integral back mount structure.When liquid crystal indicator is exerted pressure by external force, easily cause being formed at the breach distortion on back of the body frame, and then make Integral back mount structure destroyed and cannot really support display floater, under these circumstances, easily cause display floater distortion or damaged probability to increase.Therefore, how for the problems referred to above, to solve and to improve one of real emphasis that technical field person pays close attention to for this reason.
Summary of the invention
One of object of the present invention is to provide a kind of backlight module, and its structural design makes to carry on the back frame and is difficult for because external force produces deformation, effectively prevents that display floater from damaging because carrying on the back the deformation of frame.
A further object of the present invention is to provide a kind of display unit, and its structural design makes to carry on the back frame and is difficult for because external force produces deformation, effectively prevents that display floater from damaging because carrying on the back the deformation of frame.
For reaching above-mentioned purpose, backlight module provided by the present invention comprises LGP, light source and back of the body frame.Light source is arranged at a side of LGP.Back of the body frame comprises bottom, top, sidewall and at least one the first extended structure.Bottom has relative end face and bottom surface.End face is in order to carry LGP and light source.Top arranges with respect to bottom, and LGP and light source are between top and bottom.Sidewall is adjacent to light source and has the first relative end face and the second end face, and the first end face is connected in bottom, and the second end face is connected in top.The first extended structure faces away from the direction of LGP and light source and extends from the part first end of sidewall.The first extended structure comprises the 3rd relative end face and the 4th end face.The 3rd end face and the 4th end face respectively with bottom surface and end face towards equidirectional, and the distance between the 3rd end face and top is greater than the distance between bottom surface and top.
In one embodiment of this invention, the first above-mentioned extended structure also comprises supporting part and connecting portion.Supporting part comprises four end face relative with the 3rd end face.The end face of the 4th end face and bottom is towards same direction.Connecting portion comprises the 3rd end face, and connecting portion is in order to connect part the first end face and the supporting part of sidewall.
In one embodiment of this invention, above-mentioned backlight module also comprises housing, has accommodation space, and accommodation space is in order to accommodating LGP, light source and back of the body frame, and wherein the 3rd end contact of connecting portion is in housing.
In one embodiment of this invention, above-mentioned backlight module, also comprises support member, is disposed between housing and the top of back of the body frame.
In one embodiment of this invention, the top of above-mentioned back of the body frame has relative first surface and second surface, the 4th end face of first surface and supporting part is towards same direction, and second surface is towards the bottom of back of the body frame, and support arrangement is in first surface and be contacted with housing.
In one embodiment of this invention, above-mentioned support member comprises glue frame or has the block of toughness.
In one embodiment of this invention, the top of above-mentioned back of the body frame comprises that protuberance has the supporting surface that is contacted with housing towards the protuberance protruding away from bottom direction.
In one embodiment of this invention, above-mentioned back of the body frame also comprises at least one the second extended structure, extend, and the second extended structure is contacted with housing from the part second end face court of sidewall away from the direction of bottom.
In one embodiment of this invention, the top of above-mentioned back of the body frame has the first hollow out region, is adjacent to the second extended structure, and the second extended structure outwards turns down out from the first hollow out region.
In one embodiment of this invention, the bottom of above-mentioned back of the body frame has the second hollow out region, is adjacent to the first extended structure, and the first extended structure outwards turns down out from the second hollow out region.
In one embodiment of this invention, between above-mentioned top, bottom and inside sidewalls, form light source accommodation space, in order to accommodating light source.
For reaching above-mentioned advantage, the present invention proposes a kind of display unit on the other hand, comprises display floater, circuit board and backlight module.Circuit board is electrically connected at display floater.Backlight module is with respect to display floater setting.Backlight module comprises LGP, light source and back of the body frame.Light source is arranged at a side of LGP.Back of the body frame comprises bottom, top, sidewall and at least one the first extended structure.Bottom has relative end face and bottom surface.End face is in order to carry LGP and light source.Top arranges with respect to bottom, and LGP and light source are between top and bottom.Sidewall is adjacent to light source and has the first relative end face and the second end face, and the first end face is connected in bottom, and the second end face is connected in top.The first extended structure, from the part first end of sidewall, face away from the direction of LGP and light source and extend, the first extended structure comprises the 3rd relative end face and the 4th end face, wherein the 3rd end face and the 4th end face respectively with bottom surface and end face towards same direction, the 4th end face is in order to bearer circuit plate, and the distance between the 3rd end face and top is greater than the distance between bottom surface and top.
Display unit described in the embodiment of the present invention, the back of the body frame of its backlight module has bottom, top, sidewall and at least one the first extended structure.This first extended structure faces away from the direction of LGP and light source and extends from the part first end of sidewall, and the first extended structure comprises the 3rd relative end face and the 4th end face, and the spacing at the 3rd end face and top is greater than the spacing at bottom surface and top.Under such structural design, make the 3rd end contact of the first extended structure in housing, thus, can effectively disperse to carry on the back the external force that frame bears, and make to carry on the back frame, be difficult for producing deformation, and then the support that display floater is firm is provided, prevent that display floater from damaging.In addition, under the basis of said structure design, can also arrange in pairs or groups as support member, protuberance or the second extended structure, further to strengthen the structural strength of the display unit described in the embodiment of the present invention.
For above and other object of the present invention, feature and advantage can be become apparent, preferred embodiment cited below particularly, and coordinate appended graphicly, be described in detail below.
Accompanying drawing explanation
Fig. 1 is the generalized section of the display unit described in one embodiment of the invention.
Fig. 2 is the generalized section of the display unit described in another embodiment of the present invention.
Fig. 3 is the generalized section of the display unit described in another embodiment of the present invention.
Fig. 4 is the generalized section of the display unit described in another embodiment of the present invention.
Fig. 5 is the generalized section of the display unit described in another embodiment of the present invention.
Symbol description
1,1a, 1b, 1c, 1d: display unit
10: display floater
11: circuit board
12,12a, 12b, 12c, 12d: backlight module
13: flexible circuit board
120: LGP
121: light source
122: back of the body frame
1200: incidence surface
1220: bottom
1221,1221c: top
1222: sidewall
1223: the first extended structures
1224: supporting part
1225: connecting portion
1226: housing
1227,1227b: support member
1228: protuberance
1229: the second extended structures
D1, D2: distance
E1: the first end face
E2: the second end face
E3: the 3rd end face
E4: the 4th end face
R1, R2: accommodation space
S1: end face
S2: bottom surface
S3: first surface
S4: second surface
S5: supporting surface
T1, T2: hollow out region
X, Y: direction
The specific embodiment
Please refer to Fig. 1, it is the generalized section of the display unit described in one embodiment of the invention.As shown in Figure 1, the display unit described in the present embodiment 1 comprises display floater 10, circuit board 11 and backlight module 12.Circuit board 11 is electrically connected at display floater 10, and this circuit board 11 is to be for example electrically connected at display floater 10 by flexible circuit board 13, but the present invention is not as limit.
Backlight module 12 described in the present embodiment arranges with respect to display floater 10, and backlight module 12 is for example side light type back light module or direct type backlight module, but the present invention is not as limit.Backlight module 12 described in the present embodiment comprises LGP 120, light source 121 and back of the body frame 122.Light source 121 is arranged at a side of LGP 120, and particularly, this light source 121 is arranged at incidence surface 1200 sides of LGP 120.Back of the body frame 122 comprises bottom 1220, top 1221, sidewall 1222 and at least one the first extended structure 1223.Bottom 1220 has relative end face S1 and bottom surface S2, and this end face S1 is in order to carry LGP 120 and light source 121.Top 1221 arranges with respect to bottom 1220, and LGP 120 and light source 121 are between top 1221 and bottom 1220.Sidewall 1222 is adjacent to light source 121 and has the first relative end face E1 and the second end face E2, and the first end face E1 be connected in bottom 1220, the second end face E2 be connected in top 1221.The first extended structure 1223 extends towards direction X from the first end face E1 of the part of sidewall 1222, and particularly, the first extended structure 1223 is towards extending away from LGP 120 and the direction of light source 121.The first extended structure 1223 comprises the 3rd relative end face E3 and the 4th end face E4.The 3rd end face E3 and the 4th end face E4 respectively with the bottom surface S2 of bottom 1220 and end face S1 towards same direction, wherein the 4th end face E4 of the first extended structure 1223 is in order to bearer circuit plate 11, and the distance D 1 between the 3rd end face E3 and top 1221 is greater than the distance D 2 between the S2Yu top, bottom surface 1221 of bottom 1220.
It should be noted that, the backlight module described in the present embodiment also comprises the members such as blooming piece, reflector plate.But because above-mentioned these members are not main technical characterictic in the present invention, therefore, of the present inventionly do not show these members in graphic.
As shown in Figure 1, the first extended structure 1223 described in the present embodiment also comprises supporting part 1224 and connecting portion 1225.This supporting part 1224 comprises the 4th end face E4, that is to say, supporting part 1224 carrys out bearer circuit plate 11 with the 4th end face E4 as loading end.Connecting portion 1225 comprises the 3rd end face E3, and this connecting portion 1225 is in order to connect part the first end face E1 and the supporting part 1224 of sidewall 1222.In the present embodiment, connecting portion 1225 is for example to form U font with sidewall 1222, and supporting part 1224 is for example to form L-type with connecting portion 1225, but the present invention is as limit, and the shape that connecting portion 1225, sidewall 1222 and supporting part 1224 form can change according to actual demand.
As shown in Figure 1, the top described in the present embodiment 1221 has relative first surface S3 and second surface S4.The 4th end face E4 of the first surface S3 at top 1221 and supporting part 1224 is towards same direction, and the second surface S4 at top 1221 is towards the bottom 1220 of back of the body frame 122.Particularly, between the 4th end face E4 of the first surface S3 at top 1221 and supporting part 1224, there is the accommodation space R1 in order to accommodating circuit board 11.In addition, between top 1221, bottom 1220 and sidewall 1222 inner sides of back of the body frame 122, form the light source accommodation space R2 in order to accommodating light source 121.
As shown in Figure 1, the bottom described in the present embodiment 1220 has hollow out region T1.This hollow out region T1 is adjacent to the first extended structure 1223.The first extended structure 1223 described in the present embodiment outwards turns down and goes out from hollow out region T1.Particularly, supporting part 1224 and the connecting portion 1225 of the first extended structure 1223 was a part for back of the body frame 122 bottoms 1220 originally, according to actual Production requirement, decide and need the area turnover of the how many back ofs the body of intercepting frame 122 bottoms 1220 as the first extended structure 1223, that is to say, the area of the engraved structure T1 described in the present embodiment is substantially equal to the area of the first extended structure 1223.
As shown in Figure 1, the backlight module described in the present embodiment also comprises housing 1226.Housing 1226 has accommodation space, in order to accommodating LGP 120, light source 121, back of the body frame 122 and display floater 10.In the present embodiment, the 3rd end face E3 of the first extended structure 1223 is directly contacted with housing 1226.When external force puts on the display floater 10 of display unit 1 or is positioned at the housing 1226 of display floater 10 peripheries, because the 3rd end face E3 of the first extended structure 1223 is directly contacted with housing 1226, therefore, external force can be via display floater 10, top 1221, sidewall 1222, the path of the 3rd end face E3 and housing 1226 discharges, that is to say, in the situation that the 3rd end face E3 of the first extended structure 1223 is directly contacted with housing 1226, the external force that housing 1226 effectively disperses back of the body frame 122 and display floater 10 to bear, make to carry on the back that the suffered external force of frame 122 diminishes and be difficult for producing the situation of deformation, effectively prevent that display floater 10 from damaging because carrying on the back the deformation of frame 122.
Need special instruction, it is only one of them embodiment of the present invention that the 3rd end face E3 of above-mentioned the first extended structure 1223 is directly contacted with housing 1226.In other embodiments, between the 3rd end face E3 of the first extended structure 1223 and housing 1226, also can there is gap, in addition, also can in gap, place cushion pad.
Please refer to Fig. 2, it is the generalized section of the display unit described in another embodiment of the present invention.Display unit 1a described in the present embodiment is similar to the display unit 1 shown in Fig. 1, and difference is, the backlight module 12a described in the present embodiment also comprises support member 1227.This support member 1227 is disposed between housing 1226 and back of the body frame 122.Particularly, support member 1227 is disposed at the upper housing 1226 that is also simultaneously contacted with of first surface S3 at back of the body frame 122 tops 1221.When external force puts on the display floater 10 of display unit 1a or is positioned at the housing 1226 of display floater 10 peripheries, because the 3rd end face E3 and the support member 1227 of the first extended structure 1223 is all contacted with respectively housing 1226, therefore, external force can be via support member 1227, top 1221, sidewall 1222, the 3rd end face E3 of connecting portion 1225 and the path of housing 1226 discharge, that is to say, in the situation that the 3rd end face E3 of the first extended structure 1223 and support member 1227 are all contacted with respectively housing 1226, effectively disperse the external force that puts on the display floater 10 of display unit 1a or be positioned at the housing 1226 of display floater 10 peripheries.
As shown in Figure 2, the support member 1227 described in the present embodiment is for example the block with toughness, but the present invention is not as limit.In other embodiments, display unit 1b as shown in Figure 3, the included support member 1227b of its backlight module 12b is for example glue frame.
Please refer to Fig. 4, it is the generalized section of the display unit described in another embodiment of the present invention.Display unit 1c described in the present embodiment is similar to the display unit 1 shown in Fig. 1, difference is, the top 1221a of the back of the body frame 122 described in the present embodiment comprises the protuberance 1228 protruding towards Y-direction, and particularly, this protuberance 1228 protrudes away from the direction of bottom 1220.As shown in Figure 4, protuberance 1228 has supporting surface S5, and this supporting surface S5 is contacted with housing 1226.Particularly, because the back of the body frame 122 of metal material has good ductility, therefore, the top 1221a that carries on the back frame 122 by bending forms the protuberance 1228 described in the present embodiment.1228 effects that can reach of protuberance described in the present embodiment are similar to the support member 1227 shown in Fig. 2, namely, in the situation that the 3rd end face E3 of the first extended structure 1223 and the protuberance 1228 of top 1221c are all contacted with respectively housing 1226, effectively disperse the external force that puts on the display floater 10 of display unit 1c or be positioned at the housing 1226 of display floater 10 peripheries.
Please refer to Fig. 5, it is the generalized section of the display unit described in another embodiment of the present invention.Display unit 1d described in the present embodiment is similar to the display unit 1 shown in Fig. 1, and difference is, the back of the body frame 122c described in the present embodiment also comprises at least one the second extended structure 1229.This second extended structure 1229 extends towards direction Y from the part second end face E4 of sidewall, and particularly, the second extended structure 1229 is towards extending away from the direction of bottom 1220.As shown in Figure 5, the second extended structure 1229 described in the present embodiment is directly contacted with housing 1226, its effect that can reach is similar to the support member 1227 shown in Fig. 2, namely, in the situation that the 3rd end face E3 of the first extended structure 1223 and the second extended structure 1229 are all contacted with respectively housing 1226, effectively disperse the external force that puts on the display floater 10 of display unit 1d or be positioned at the housing 1226 of display floater 10 peripheries.In addition, back of the body frame 122c described in the present embodiment has hollow out region T2, this hollow out region T2 is adjacent to the second extended structure 1229, and the second extended structure 1229 outwards turns down out from hollow out region T2, and the area of hollow out region T2 is substantially equal to the area of the second extended structure 1229.Structural relation between the second extended structure 1229 and hollow out region T2 is similar to the structural relation between the first extended structure 1223 shown in Fig. 1 and hollow out region T1, is not repeated herein.
To sum up institute is old, the display unit described in the embodiment of the present invention, and the back of the body frame of its backlight module has bottom, top, sidewall and at least one the first extended structure.This first extended structure faces away from the direction of LGP and light source and extends from the part first end of sidewall, and the first extended structure comprises the 3rd relative end face and the 4th end face, and the spacing at the 3rd end face and top is greater than the spacing at bottom surface and top.Under such structural design, make the 3rd end contact of the first extended structure in housing, thus, can effectively disperse to carry on the back the external force that frame bears, and make to carry on the back frame, be difficult for producing deformation, and then the support that display floater is firm is provided, prevent that display floater from damaging.In addition, under the basis of said structure design, can also arrange in pairs or groups as support member, protuberance or the second extended structure, further to strengthen the structural strength of the display unit described in the embodiment of the present invention.

Claims (10)

1. a backlight module, comprising:
LGP;
Light source, is arranged at a side of this LGP; And
Back of the body frame, comprising:
Bottom, has relative end face and bottom surface, and this end face is in order to carry this LGP and this light source;
Top, arranges with respect to this bottom, and this LGP and this light source are between this top and this bottom;
Sidewall, is adjacent to this light source and has the first relative end face and the second end face, and this first end face is connected in this bottom, and this second end face is connected in this top; And
At least one the first extended structure, from this first end of part of this sidewall, face away from the direction of this LGP and this light source and extend, this first extended structure comprise one with this bottom surface towards unidirectional the 3rd end face, and the distance between the 3rd end face and this top is greater than the distance between Yu Gai top, this bottom surface.
2. backlight module as claimed in claim 1, wherein this first extended structure also comprises:
Supporting part, comprises four end face relative with the 3rd end face, and this end face of the 4th end face and this bottom is towards same direction; And
Connecting portion, comprises the 3rd end face, and this connecting portion is in order to connect this first end face of part and this supporting part of this sidewall.
3. backlight module as claimed in claim 2, also comprises housing, has accommodation space, and this accommodation space is in order to accommodating this LGP, this light source and this back of the body frame, and wherein the 3rd end contact of this connecting portion is in this housing.
4. backlight module as claimed in claim 3, also comprises support member, is disposed between this housing and this top of this back of the body frame.
5. backlight module as claimed in claim 4, wherein this top of this back of the body frame has relative first surface and second surface, the 4th end face of this first surface and this supporting part is towards same direction, this second surface is towards this bottom of this back of the body frame, and this support arrangement is in this first surface and be contacted with this housing.
6. backlight module as claimed in claim 3, wherein this top of this back of the body frame comprises the protuberance that protrude one day away from this bottom direction, this protuberance has a supporting surface that is contacted with this housing.
7. backlight module as claimed in claim 3, wherein this back of the body frame also comprises at least one the second extended structure, this second end face of the part of this sidewall is towards extending away from the direction of this bottom certainly, and this second extended structure is contacted with this housing.
8. backlight module as claimed in claim 7, wherein this top of this back of the body frame has the first hollow out region, is adjacent to this second extended structure, and this second extended structure outwards turns down out from this first hollow out region.
9. backlight module as claimed in claim 1, wherein this bottom of this back of the body frame has the second hollow out region, is adjacent to this first extended structure, and this first extended structure outwards turns down out from this second hollow out region.
10. a display unit, comprising:
Display floater;
Circuit board, is electrically connected at this display floater; And
Backlight module, arranges with respect to this display floater, and this backlight module comprises:
LGP;
Light source, is arranged at a side of this LGP; And
Back of the body frame, comprising:
Bottom, has relative end face and bottom surface, and this end face is in order to carry this LGP and this light source;
Top, arranges with respect to this bottom, and this LGP and this light source are between this top and this bottom;
Sidewall, is adjacent to this light source and has the first relative end face and the second end face, and this first end face is connected in this bottom, and this second end face is connected in this top; And
At least one the first extended structure, from this first end of part of this sidewall, face away from the direction of this LGP and this light source and extend, this first extended structure comprises the 3rd relative end face and the 4th end face, wherein the 3rd end face and the 4th end face respectively with this bottom surface and this end face towards same direction, the 4th end face is in order to carry this circuit board, and the spacing at the 3rd end face and this top is greater than the spacing at Yu Gai top, this bottom surface.
CN201410004061.5A 2013-10-29 2014-01-02 Display device and backlight module thereof Expired - Fee Related CN103672627B (en)

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TWI824781B (en) 2022-08-22 2023-12-01 瑞儀光電股份有限公司 Backlight module and display device

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CN103672627B (en) 2016-02-10
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