CN201757332U - Back panel free type backlight module for LCD TV - Google Patents
Back panel free type backlight module for LCD TV Download PDFInfo
- Publication number
- CN201757332U CN201757332U CN2010202587421U CN201020258742U CN201757332U CN 201757332 U CN201757332 U CN 201757332U CN 2010202587421 U CN2010202587421 U CN 2010202587421U CN 201020258742 U CN201020258742 U CN 201020258742U CN 201757332 U CN201757332 U CN 201757332U
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- Prior art keywords
- backlight
- back frame
- lcd
- bars
- reflector plate
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- Expired - Fee Related
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 19
- 230000003287 optical effect Effects 0.000 claims abstract description 10
- 229910052782 aluminium Inorganic materials 0.000 claims description 8
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 6
- 230000008719 thickening Effects 0.000 claims description 6
- 230000005855 radiation Effects 0.000 claims description 5
- 238000005187 foaming Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 2
- 238000005452 bending Methods 0.000 abstract 3
- 230000002349 favourable effect Effects 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
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- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The utility model discloses a back panel free type backlight module for a liquid crystal display television (LCD TV). The backlight module comprises an LCD panel (1), an optical diaphragm group (2), a light guide plate (3) and a reflective sheet (4) which are superposed in sequence from front to back; a plastic middle frame (5) is arranged at the periphery of the side surface of the LCD panel close to the optical diaphragm group; a front frame (6) is arranged at the periphery of the other side of the LCD panel; a back frame is arranged at the periphery of the side surface of the reflective sheet deviating from the light guide plate; the edges of the back frame bend and extend forward to form bending edges (9); the bending edges are connected with the plastic middle frame; backlight sources (8) are arranged between the bending edges and the peripheral end faces of the light guide plate; and a control circuit (12) controlling the backlight source and the LCD panel is arranged on the back frame. As a high-cost back panel is replaced by the back frame, the backlight module considerably reduces the cost on the basis of guaranteeing the installation requirement and the mechanical strength, thereby having favorable market prospect.
Description
Technical field
The utility model relates to the module backlight of LCD TV, relates in particular to a kind of no postnotum formula module backlight that is applicable to LCD TV.
Background technology
Along with the maturation of liquid crystal panel technology, LCD TV is universal day by day, because TFT LCD liquid crystal panel self can be not luminous, needs backlight that light is provided, and passes liquid crystal panel, reaches the purpose of liquid crystal panel image visual, and straight-down negative and the side-light type of being divided into backlight.In the prior art, no matter be straight-down negative and side-light type, the back of entire module is provided with an all-in-one-piece postnotum and does main support member, and other part all assembles and is attached to above it, thereby forms a complete module.Postnotum is a volume maximum in the module, uses metal material maximum, and the part that required precision is the highest, its cost also are that the accounting example is maximum in the structural member.
The utility model content
The utility model is that will to solve in the prior art postnotum consumptive material many, the problem that cost is high, and proposing a kind of side-light type of LCD TV that is applicable to does not have postnotum formula module backlight.
For solving the problems of the technologies described above, the technical scheme that the utility model proposes is a kind of no postnotum formula module backlight that is applicable to LCD TV of design, comprise by LCD liquid crystal panel stacked successively behind the forward direction, optical diaphragm group, LGP, reflector plate, the LCD liquid crystal panel is provided with the plastic cement center in the edge of the side of close optical diaphragm group, the edge of the opposite side of LCD liquid crystal panel is provided with preceding frame, the edge that deviates from the side of LGP at reflector plate is provided with the back frame, the edge of this back frame bends forward and extends to form flanging, this flanging is connected with the plastic cement center, is provided with backlight between the end face at least on one side in around this flanging and the LGP; The back frame is provided with the control circuit of control backlight and LCD liquid crystal panel.
Described back frame comprises top bars, lower strip and two side plate bars; The two ends of top bars, lower strip are fixing with the two ends overlap joint of two side plate bars respectively.
The middle part of described top bars, lower strip and two side plate bars is provided with the boss of being close to reflector plate, and the end face of all boss is in same plane.
Be provided with at least two mounting bars between described top bars and the lower strip, direct or indirect fixing control circuit etc. on the mounting bar.
Described reflector plate adopts thickening type reflector plate or foaming thickening type reflector plate.
Described backlight is LED-backlit source or CCFL backlight.
Described back frame adopts the good aluminium of heat radiation.
Compared with prior art, the utility model has replaced the higher postnotum of cost with the back frame, on the basis that guarantees installation requirement and mechanical strength, has reduced cost significantly, has and well establishes market prospects.
Description of drawings
Below in conjunction with drawings and Examples the utility model is made detailed explanation, wherein:
Fig. 1 is the general assembly back design sketch of the utility model preferred embodiment;
Fig. 2 is the profile of the postnotum junction of prior art;
Fig. 3 is the profile at the B-B place of the utility model preferred embodiment;
Fig. 4 is that the utility model preferred embodiment top bars is separated schematic diagram with the side plate bar;
Fig. 5 is the utility model preferred embodiment top bars and side plate bar overlap joint schematic diagram;
Fig. 6 is the profile at the utility model preferred embodiment top bars A-A place.
The specific embodiment
Referring to Fig. 2, the module backlight of prior art, its back is provided with an all-in-one-piece postnotum 13 as the main support part, and other parts reflector plate 4, LGP 3, optical diaphragm group 2, liquid crystal panel 1 are installed in above the postnotum 13 from back to front successively, thereby forms a complete module.Backlight 8 is installed on the heat radiation aluminum strip 14, and heat radiation aluminum strip 14 is installed on the postnotum 13.
The utility model discloses a kind of no postnotum formula module backlight that is applicable to LCD, referring to Fig. 1 and Fig. 3, wherein Fig. 3 is the profile at Figure 1B-B place.Module backlight comprises by LCD liquid crystal panel 1 stacked successively behind the forward direction, optical diaphragm group 2, LGP 3, reflector plate 4, the LCD liquid crystal panel is provided with plastic cement center 5 in the edge of the side of close optical diaphragm group, the edge of the opposite side of LCD liquid crystal panel is provided with preceding frame 6, the edge that deviates from the side of LGP at reflector plate is provided with the back frame, the edge of this back frame bends forward and extends to form flanging 9, this flanging is connected with the plastic cement center, is provided with backlight 8 between the one side in around this flanging and the LGP or the end face on both sides or three limits; The back frame is provided with the control circuit 12 of control backlight and LCD liquid crystal panel.Wherein optical diaphragm group 2 comprises the blooming piece more than or.
In preferred embodiment, the back frame comprises top bars 7a, lower strip 7b and two side plate bar 7c, 7d; The two ends of top bars, lower strip are fixing with the two ends overlap joint of two side plate bars respectively.Lap-joint takes screw to fix, and for firm, each lap position is no less than three screws, takes four screws in this example.The middle part of top bars 7a, lower strip 7b and two side plate bar 7c, 7d is provided with the boss of being close to reflector plate 4 10, and the end face of all boss is in same plane.For making the plane of placing reflector plate smooth, top bars 7a, the method of lower strip 7b and two side plate bar 7c, 7d employing extrusion moldings, by secondary operations, overlapping again in the lap-joint of two laths, referring to Fig. 4,5, wherein one by the downward modification of punching press, so that another is fixed on punching press modification position when splicing, the end face that splices the boss 10 of back four lath supporting reflex sheets is in same plane.Fig. 6 is the profile at top bars A-A place among Fig. 4, and wherein, hole 15 is to be used to lock plastic cement center 5, the screw of preceding frame 6; Hole 16 is fixing screws of backlight 8; Hole the 17, the 18th, the hole of lath right angle splicing in two days in the back frame.
Above-mentioned back frame adopts the good aluminium of heat radiation, is mounting fixing parts, also is fin.After four laths are assembled into one, just form a firm aluminium frame, place reflector plate 4 more successively, LGP 3 and diaphragm group 2, assembling plastic cement center 5, LCD liquid crystal panel 1, preceding frame 6; By screw preceding frame, the plastic cement center, back frame locking forms complete module.
Be provided with at least two mounting bars 11 between described top bars 7a and the lower strip 7b, fixing control circuit 12 on the mounting bar.Referring to Fig. 1, control circuit 12 comprises the power panel on right side among the figure and the mainboard in left side, power panel, and mainboards etc. are fixed on the mounting bar 11 by the pillar of band screw.On the mounting bar 11 other fixture can also be installed and display base is connected and fixed.
Described reflector plate 4 adopts thickening type reflector plate or foaming thickening type reflector plate.
Described backlight 8 is LED-backlit source or CCFL backlight.The LED-backlit source comprises the alight group and the aluminium base of lamp group is installed, and aluminium base is fixed on by screw or double faced adhesive tape on the lath of back frame, and the CCFL backlight comprises the CCFL and the fixing lampshade of CCFL.
Above embodiment is only for illustrating non-providing constraints.Anyly do not break away from spirit of the present invention and category, and, all should be contained among the application's the claim scope its equivalent modifications of carrying out or change.
Claims (7)
1. no postnotum formula module backlight that is applicable to LCD TV, comprise by LCD liquid crystal panel (1) stacked successively behind the forward direction, optical diaphragm group (2), LGP (3), reflector plate (4), the LCD liquid crystal panel is provided with plastic cement center (5) in the edge of the side of close optical diaphragm group, the edge of the opposite side of LCD liquid crystal panel is provided with preceding frame (6), it is characterized in that: the edge that deviates from the side of LGP at reflector plate is provided with the back frame, the edge of this back frame bends forward and extends to form flanging (9), this flanging is connected with the plastic cement center, is provided with backlight (8) between the end face at least on one side in around this flanging and the LGP; The back frame is provided with the control circuit (12) of control backlight and LCD liquid crystal panel.
2. module backlight as claimed in claim 1 is characterized in that: described back frame comprises top bars (7a), lower strip (7b) and two side plate bars (7c, 7d); The two ends of top bars, lower strip are fixing with the two ends overlap joint of two side plate bars respectively.
3. module backlight as claimed in claim 2 is characterized in that: the middle part of described top bars (7a), lower strip (7b) and two side plate bars (7c, 7d) is provided with the boss of being close to reflector plate (4) (10), and the end face of all boss is in same plane.
4. module backlight as claimed in claim 3 is characterized in that: be provided with at least two mounting bars (11) between described top bars (7a) and the lower strip (7b), fix described control circuit (12) on the mounting bar.
5. module backlight as claimed in claim 1 is characterized in that: described reflector plate (4) adopts thickening type reflector plate or foaming thickening type reflector plate.
6. module backlight as claimed in claim 1 is characterized in that: described backlight (8) is LED-backlit source or CCFL backlight.
7. as each described module backlight of claim 1 to 6, it is characterized in that: described back frame (7) adopts the good aluminium of heat radiation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202587421U CN201757332U (en) | 2010-07-14 | 2010-07-14 | Back panel free type backlight module for LCD TV |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202587421U CN201757332U (en) | 2010-07-14 | 2010-07-14 | Back panel free type backlight module for LCD TV |
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| Publication Number | Publication Date |
|---|---|
| CN201757332U true CN201757332U (en) | 2011-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202587421U Expired - Fee Related CN201757332U (en) | 2010-07-14 | 2010-07-14 | Back panel free type backlight module for LCD TV |
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