CN103363386A - Backlight module and liquid crystal display device - Google Patents
Backlight module and liquid crystal display device Download PDFInfo
- Publication number
- CN103363386A CN103363386A CN 201210095528 CN201210095528A CN103363386A CN 103363386 A CN103363386 A CN 103363386A CN 201210095528 CN201210095528 CN 201210095528 CN 201210095528 A CN201210095528 A CN 201210095528A CN 103363386 A CN103363386 A CN 103363386A
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- China
- Prior art keywords
- backlight module
- lgp
- backboard
- light
- matrix
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Abstract
The invention provides a backlight module and a liquid crystal display device. The backlight module comprises a light source, a light guide plate and a frame. The frame comprises a back plate and a side wall. The light guide plate is arranged on the back plate, and the light source is arranged on one side of the light entering face of the light guide plate. The light source comprises a base body and a light-emitting element fixed on the base body. The back plate comprises an opening corresponding to the light-emitting element, the light-emitting element penetrates through the opening to be arranged on one side of the light entering face of the light guide plate, and the base body is fixed on one side of the back plate far away from the light guide plate. According to the backlight module, light source replacement is facilitated.
Description
Technical field
The present invention relates to a kind of backlight module and liquid crystal indicator.
Background technology
Liquid crystal indicator because of have low diathermaneity, the characteristics such as volume is compact and power consumption is low, be widely used in the fields such as mobile phone, personal digital assistant, mobile computer, personal computer and TV.Because the liquid crystal panel of liquid crystal indicator itself does not have the characteristics of luminescence, therefore, for reaching display effect, need to provide a backlight module providing brightness to liquid crystal panel fully and the planar light that is evenly distributed to liquid crystal panel, thereby realize the Presentation Function of liquid crystal indicator.
Backlight module mainly comprises LGP, light source, reflector plate, one or more blooming piece carrying and accommodates lower frame (also claiming back-cover) and the auxiliary fixedly glue frame of usefulness of said elements.Yet, because light source is contained in this lower frame, when light source need to be changed, (damage such as light source), whole backlight module all must be disassembled and could be taken out and change light source, namely have backlight module now and adopt this backlight module liquid crystal indicator be inconvenient to change light source.
Summary of the invention
For solving the problem of backlight module replacing light source inconvenience in the prior art, be necessary to provide a kind of backlight module that is convenient for changing light source.
Also be necessary to provide a kind of liquid crystal indicator that adopts this backlight module.
A kind of backlight module, it comprises light source, LGP and framework, and this framework comprises backboard and sidewall, and this LGP is arranged on this backboard, and this light source is arranged at incidence surface one side of this LGP.This light source comprises matrix and is fixed in light-emitting component on this matrix, and this backboard comprises that this light-emitting component passes incidence surface one side that this opening is arranged at this LGP, and this matrix is fixed in this backboard away from a side of this LGP to opening that should light-emitting component.
A kind of liquid crystal indicator, it comprises display panels and the backlight module that planar light is provided for this display panels, this backlight module comprises light source, LGP and framework, this framework comprises backboard and sidewall, this LGP is arranged on this backboard, and this light source is arranged at incidence surface one side of this LGP.This light source comprises matrix and is fixed in light-emitting component on this matrix, and this backboard comprises that this light-emitting component passes incidence surface one side that this opening is arranged at this LGP, and this matrix is fixed in this backboard away from a side of this LGP to opening that should light-emitting component.
Compared with prior art, when backlight module of the present invention and liquid crystal indicator need to be changed light source, can this light source be taken out by the opening of this backboard and will replace light source by this opening and assemble, and need not to dismantle whole backlight module or liquid crystal indicator, therefore backlight module of the present invention and liquid crystal indicator is convenient for changing light source.
Description of drawings
Fig. 1 is the three-dimensional exploded view of liquid crystal indicator the first embodiment of the present invention.
Fig. 2 is the solid assembling schematic diagram of liquid crystal indicator shown in Figure 1.
Fig. 3 is the generalized section of liquid crystal indicator III-III along the line shown in Figure 2.
Fig. 4 is the generalized section of liquid crystal indicator the second embodiment of the present invention.
Fig. 5 is the generalized section of liquid crystal indicator the 3rd embodiment of the present invention.
Fig. 6 is the generalized section of liquid crystal indicator the 4th embodiment of the present invention.
Fig. 7 is the generalized section of liquid crystal indicator the 5th embodiment of the present invention.
The main element symbol description
The first framework 13
LGP 16,36
The second framework 17
Colloid 18
Matrix 151,251,451,551
Light-emitting component 152,452
First surface 153,175,375,453
Second surface 154,176,276,454
Light-emitting area 155
Exiting surface 162
Backboard 171,271,371,571
Snap close piece 133,174
Locking part 58
The following specific embodiment further specifies the present invention in connection with above-mentioned accompanying drawing.
The specific embodiment
See also Fig. 1, Fig. 2 and Fig. 3, Fig. 1 is the three-dimensional exploded view of liquid crystal indicator 10 first embodiments of the present invention, Fig. 2 is the solid assembling schematic diagram of liquid crystal indicator 10 shown in Figure 1, and Fig. 3 is the generalized section of liquid crystal indicator 10 III-III along the line shown in Figure 2.This liquid crystal indicator 10 comprises display panels 11 and the backlight module 12 that is oppositely arranged with this display panels 11.This backlight module 12 provides uniform planar light for this display panels 11.
This backlight module 12 comprises the first framework 13, blooming piece 14, light source 15, LGP 16, reaches the second framework 17.
This second framework 17 comprises backboard 171 and the sidewall 172 that extends along these backboard 171 edge-perpendicular, is used for carrying and accommodates this LGP 16, this light source 15 and this blooming piece 14.This LGP 16 and this blooming piece 14 sequentially are arranged on this backboard 171, and this light source 15 is arranged at a side of this LGP 16.Particularly, this LGP 16 comprises incidence surface 161, the exiting surface 162 adjacent with incidence surface 161, and the bottom surface 163 relative with this exiting surface 162.This light source 15 is arranged at this incidence surface 161 1 sides, and this blooming piece 14 is arranged at this exiting surface 162 1 sides, and this bottom surface 163 places on this backboard 171.
This first framework 13 is used for cooperating this second framework 17 to fix this backlight module 12, and carries this display panels 11, and it is arranged between this blooming piece 14 and this display panels 11, and can be clasped with this second framework 17.Particularly, this first framework 13 is the frame structure of hollow, it comprise four end to end sidewalls 131 and from the inner surface of four sidewalls 131 to these the first framework 13 inboard gripper shoes 132 of extending, material is preferably plastics.The outer surface of this four sidewall 131 can comprise the fastener 133 that cooperates with this second framework 17, and such as projection, this gripper shoe 132 is used for this display panels 11 of carrying.
This light source 15 comprises matrix 151 and is fixed in light-emitting component 152 on this matrix 151.This matrix 151 is the rectangular plate shape structure, and it can be circuit board, and inside can be provided with the conducting wire that is electrically connected this light-emitting component 152, is used for transmission of electric signals to this light-emitting component 152.This matrix 151 comprises that first surface 153 reaches and the second surface 154 that is positioned at an opposite side, and this first surface 153 comprises the light source setting area (indicating) of the corresponding light-emitting component 152 that is positioned at middle body and is positioned at this light source setting area outer peripheral areas (indicating) on every side.This light-emitting component 152 can be light emitting diode, and its light-emitting area 155 is over against the incidence surface 161 of this LGP 16.
This backboard 171 comprises first surface 175, the second surface 176 that arranges dorsad away from this LGP 16 and with this first surface 175 of contiguous this LGP 16 and runs through this first surface 175 and second surface 176 and to opening 173 that should light-emitting component 152.The shape of this opening 173 also can be rectangle, and its width can be basically identical with the width of this light-emitting component 152, and the width of this opening 173 is less than the width of this matrix 151.Particularly, the width of the width of the width of above-mentioned this opening 173, this light-emitting component 152 and this matrix 151 all refers to the width on the direction of incidence surface 161 of vertical this LGP 16.This sidewall 172 can be provided for the fastener 174 that cooperates with this first framework 13, such as draw-in groove.Preferably, the material of this second framework 17 is metal.This first surface 175 has reflecting material, is used for reflection ray to this LGP 16.
The light-emitting component 152 of this light source 15 can pass incidence surface 161 1 sides that this opening 173 is arranged at this LGP 16, and makes its light-emitting area 155 over against the incidence surface 161 of this LGP 16.151 second surfaces 176 that are fixed in this backboard 171 by retaining element of this matrix.Particularly, this matrix 151 can be attached to by colloid the second surface 176 of this backboard 171, perhaps by locking parts such as screws this matrix 151 is locked on this backboard 171.In the present embodiment, the outer peripheral areas of the first surface 153 of this matrix 151 is attached on the second surface 176 of this backboard 171 by colloid 18.
During this backlight module 12 assembling, first this LGP 16, this blooming piece 14 sequentially are placed on this backboard 171, again this first framework 13 is snapped in one with this second framework 17, at last the light-emitting component 152 of this light source 15 is arranged at incidence surface 161 1 sides of this LGP 16 by this opening 173, and make the outer peripheral areas of this matrix 151 and this backboard 171 superimposed so that these matrix 151 correspondences be fixed in (as attach by colloid or by the locking part locking) second surface 176 of this backboard 171.
When need changing light source 15, apply external force or dismounting locking part so that this matrix 151 breaks away from this backboard 171, further apply again external force to this matrix 151, so that this light-emitting component 152 breaks away from, thereby take out the light source 15 that needs replacing from this opening 173.Further, the light-emitting component 152 of replacing light source 15 is arranged at incidence surface 161 1 sides of this LGP 16 by this opening 173, and make the outer peripheral areas of this matrix 151 and this backboard 171 superimposed, so that these matrix 151 correspondences are fixed in the second surface 176 of (as by the colloid attaching or by the locking part locking) this backboard 171, thereby finish the replacing of light source 15.
Compared with prior art, when backlight module 12 of the present invention and liquid crystal indicator 10 need to change light source 15, can this light source 15 be taken out and will replace light source 15 by this opening 173 and assemble by the opening 173 of this backboard 171, and need not to dismantle whole backlight module 12 or liquid crystal indicator 10, therefore light source 15 exchonge steps of backlight module 10 of the present invention and liquid crystal indicator 12 are simple, convenient.
See also Fig. 4, it is the generalized section of liquid crystal indicator 20 second embodiments of the present invention.The liquid crystal indicator 20 of second embodiment of the invention mainly is with the difference of the liquid crystal indicator 10 of the first embodiment: the second surface 276 of backboard 271 comprises the depressed part 277 of corresponding matrix 251, and this matrix 251 is placed in this depressed part.Particularly, this depressed part 277 is positioned at the periphery of this opening, and the planar dimension of this depressed part 277 equals or be slightly larger than the planar dimension of this matrix 251, and thickness equals or be slightly larger than the thickness of this matrix 251.After the assembling, this matrix 251 is placed in this depressed part 271 fully.
In this second embodiment, owing to this matrix 251 is placed in this depressed part 277 fully, so that the integral body of whole backlight module and liquid crystal indicator 20 is more succinct, attractive in appearance.
See also Fig. 5, it is the generalized section of liquid crystal indicator 30 the 3rd embodiment of the present invention.The difference of the liquid crystal indicator 30 of third embodiment of the invention and the liquid crystal indicator 20 of the second embodiment mainly is: the first surface 375 of backboard 371 also comprises a plurality of sites 378, and LGP 36 is directly molded on the first surface 375 of this backboard 371 by in-molded technology.
In the 3rd embodiment, because this LGP 36 is directly molded on the first surface 375 of this backboard 371 by in-molded technology, so that combination that can be compacter between each element of backlight module, the thickness of this backlight module and this liquid crystal indicator 30 can decrease.
See also Fig. 6, it is the generalized section of liquid crystal indicator 40 the 4th embodiment of the present invention.The difference of the liquid crystal indicator 40 of four embodiment of the invention and the liquid crystal indicator 20 of the second embodiment mainly is: fixedly the matrix 451 of light-emitting component 452 is the printed circuit board (PCB) of printed on both sides, and this printed circuit board (PCB) also is used for driving this display panels 41 and carries out picture disply.Particularly, first surface 453 1 sides of this matrix 451 are printed with the conducting wire that is electrically connected this light-emitting component 452, be used for transmission of electric signals to this light-emitting component 452, the second surface 454 of this matrix 451 is printed with driver circuit and is provided with driving element 49(as driving chip, the electronic component such as resistance and electric capacity), this driving element 49 carries out picture disply for driving this display panels 41.
Compare with the second embodiment, this liquid crystal indicator 40 is arranged at this light-emitting component 452 on the printed circuit board (PCB) that drives this display panels 41, and light source and printed circuit board (PCB) are integrated, and then reduces element, ease of assembly.
See also Fig. 7, it is the generalized section of liquid crystal indicator 50 the 5th embodiment of the present invention.The difference of the liquid crystal indicator 50 of fifth embodiment of the invention and the liquid crystal indicator 40 of the 4th embodiment mainly is: matrix 551 is locked on the backboard 571 by locking part 58.
Claims (10)
1. backlight module, it comprises light source, LGP and framework, this framework comprises backboard and sidewall, this LGP is arranged on this backboard, this light source is arranged at incidence surface one side of this LGP, it is characterized in that: this light source comprises matrix and is fixed in light-emitting component on this matrix, and this backboard comprises opening that should light-emitting component, this light-emitting component passes incidence surface one side that this opening is arranged at this LGP, and this matrix is fixed in this backboard away from a side of this LGP.
2. backlight module as claimed in claim 1, it is characterized in that: this matrix is attached at this backboard away from the surface of this LGP by colloid.
3. backlight module as claimed in claim 1 or 2, it is characterized in that: this backboard has depressed part away from the surface of this LGP, and at least part of of this matrix is contained in this depressed part.
4. backlight module as claimed in claim 3, it is characterized in that: this matrix is placed in this depressed part fully.
5. backlight module as claimed in claim 1, it is characterized in that: this matrix is locked in this backboard away from the surface of this LGP by locking part.
6. backlight module as claimed in claim 1 is characterized in that: the surface of contiguous this LGP of this backboard has reflecting material, is used for reflection ray to this LGP.
7. backlight module as claimed in claim 6 is characterized in that: the surface of contiguous this LGP of this backboard also comprises a plurality of sites.
8. backlight module as claimed in claim 7 is characterized in that: this LGP is directly molded on the surface of contiguous this LGP of this backboard by in-molded technology.
9. backlight module as claimed in claim 1, it is characterized in that: this matrix is printed circuit board (PCB), this printed circuit board (PCB) also is used for driving this display panels and carries out picture disply.
10. liquid crystal indicator, it comprises display panels and the backlight module that planar light is provided for this display panels, it is characterized in that: this backlight module adopts such as the described backlight module of claim 1-9 any one.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210095528 CN103363386A (en) | 2012-04-02 | 2012-04-02 | Backlight module and liquid crystal display device |
| TW101147814A TW201348819A (en) | 2012-04-02 | 2012-12-17 | Backlight module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210095528 CN103363386A (en) | 2012-04-02 | 2012-04-02 | Backlight module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103363386A true CN103363386A (en) | 2013-10-23 |
Family
ID=49365344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210095528 Pending CN103363386A (en) | 2012-04-02 | 2012-04-02 | Backlight module and liquid crystal display device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103363386A (en) |
| TW (1) | TW201348819A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI561868B (en) | 2014-05-23 | 2016-12-11 | Radiant Opto Electronics Corp | Back plate assembly and backlight module |
| TWI624702B (en) * | 2014-05-23 | 2018-05-21 | 瑞儀光電股份有限公司 | Back plate assembly and backlight module |
-
2012
- 2012-04-02 CN CN 201210095528 patent/CN103363386A/en active Pending
- 2012-12-17 TW TW101147814A patent/TW201348819A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| TW201348819A (en) | 2013-12-01 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20131023 |