CN203731206U - Side inlet type backlight module and liquid crystal display - Google Patents
Side inlet type backlight module and liquid crystal display Download PDFInfo
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- CN203731206U CN203731206U CN201320884150.4U CN201320884150U CN203731206U CN 203731206 U CN203731206 U CN 203731206U CN 201320884150 U CN201320884150 U CN 201320884150U CN 203731206 U CN203731206 U CN 203731206U
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- Prior art keywords
- entrance back
- backlight module
- breach
- back module
- light source
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Abstract
The utility model discloses a side inlet type backlight module which comprises a light guide plate, a lamp strip arranged on the side of the light guide plate and a reflective piece arranged at the back of the light guide plate. A plurality of light sources are installed in the lamp strip, lighting blind areas are formed between every two adjacent light sources among the light sources, and notches for forming low-brightness areas between every two adjacent lighting blind areas are respectively formed at the positions of the reflective piece corresponding to the rear of every light source in the lamp strip. The utility model further discloses a liquid crystal display. The side inlet type backlight module has the advantages that the side inlet type backlight module is low in cost, a frame is narrow and lamp shadows are avoided.
Description
Technical field
The utility model relates to technical field of liquid crystal display, relates in particular to side entrance back module and liquid crystal display.
Background technology
Along with the maturation in liquid crystal display market, the price war of liquid crystal display grows in intensity, and manufacturer need to be by being lowered into the competitiveness of original increase liquid crystal display.Please refer to Fig. 1, in prior art, the liquid crystal display of side entering type comprises lamp bar 2, is installed with plurality of LEDs 21 (light emitting diode) on lamp bar 2.Conventionally, after every LEDs 21 is lighted, effective lighting region is the sector region that is 120 ° of left and right towards its light direction, therefore, when distance is wider between two LED, can produces and illuminate blind area 4.This light intensity that illuminates blind area 4 a little less than, form larger luminance contrast with other regions, thereby can produce lamp shadow problem.Therefore, conventionally lamp bar 2 is provided with closeer LED21, or by lamp bar 2 away from LGP setting, illuminate blind area 4 in order to avoid producing, and then avoid the window area of liquid crystal display to occur the obvious lamp shadow problem of bright dark distribution.But such lamp bar 2 costs are higher, cause the overall cost of liquid crystal display to rise, competitiveness declines; Or can not accomplish narrow frame and lack competitiveness.
Foregoing is only understood the technical solution of the utility model for auxiliary, does not represent and admits that foregoing is prior art.
Utility model content
Main purpose of the present utility model is to provide a kind of side entrance back module, is intended to ensure not produce in lamp shadow and the narrower situation of frame, reduces costs.
For achieving the above object, the side entrance back module that the utility model provides comprises LGP, is located at the lamp bar of described LGP side and is located at described LGP reflecting piece below, on described lamp bar, be equiped with many light sources, in described many light sources, between every two adjacent described light sources, be formed with and illuminate blind area, wherein, the position in described reflecting piece dead astern of every light source in the described lamp bar of correspondence is respectively equipped with for illuminate a breach that forms low-light level district between blind area described in adjacent two.
Preferably, described breach is extended in sheet by the sheet edge of described reflecting piece.
Preferably, described breach entirety is kidney-shaped, forms by two relative arc-shaped side edges with the round and smooth base arcuate edge being connected of described two arc-shaped side edges.
Preferably, described breach entirety is U-shaped, forms by relative dual-side with the round and smooth base being connected of described dual-side.
Preferably, the ultimate range at the described base arcuate edge sheet edge corresponding with it is 4 millimeters to 5 millimeters.
Preferably, described light source is that lamp is wide along the full-size of the length direction of lamp bar, and described light source is positioned at the centre of the dual-side of its corresponding breach, roomy 0 to 0.4 millimeter of the lamp of the more described light source of ultimate range between described two arc-shaped side edges.
Preferably, described backlight module also comprises the heat sink for fixed light bar, and wherein, heat sink is provided with positioning head, and reflecting piece is provided with the positioning seat fixing with described positioning head.
Preferably, described positioning head is for being installed in riveting post on described heat sink, and described positioning seat is the hole being opened in described reflecting piece.
Preferably, described light source is LED.
The utility model further provides a kind of liquid crystal display, comprises backlight module, and wherein, described backlight module is above-mentioned backlight module.
Backlight module provided by the utility model, first arranges two adjacent light sources with wider spacing, illuminates blind area and naturally produce between two light sources, this illuminate light intensity in blind area a little less than; The position in the dead astern by corresponding light source in reflecting piece is provided with breach again, thereby the luminous reflectanc of gap position is weakened, thus the weak low-light level district of light intensity that this position is formed; And then this low-light level district with illuminate blind area and be connected, and reach brightness effect comparatively uniformly.Therefore, backlight module provided by the utility model to have frame narrower, the lower and good effect of uniformity light of cost; And applied the liquid crystal display of backlight module provided by the utility model, and thering is frame narrower, cost is lower and can not produce the effect of lamp shadow phenomenon.
Brief description of the drawings
Fig. 1 is the display effect schematic diagram of the backlight module of prior art;
Fig. 2 is the blast structural representation of the utility model backlight module one embodiment;
Fig. 3 is the structure for amplifying schematic diagram in dotted line circle in Fig. 2;
Fig. 4 is the display effect schematic diagram of backlight module in Fig. 2;
Fig. 5 is the assembling generalized section that in Fig. 2, backlight module is removed LGP.
Realization, functional characteristics and the advantage of the utility model object, in connection with embodiment, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
The utility model provides a kind of side entrance back module, with reference to Fig. 2 to Fig. 4, in one embodiment, this side entrance back module comprises LGP 1, is located at the lamp bar 2 of LGP 1 side and is located at LGP 1 reflecting piece 3 below, on lamp bar 2, be equiped with many light sources 21, in these many light sources 21, between adjacent two light sources 21, be formed with and illuminate blind area 4, wherein, the position in reflecting piece 3 dead astern of every light source 21 in corresponding lamp bar 2 is respectively equipped with for illuminating and form low-light level district 5 one breach 31 between blind area 4 adjacent two.
In the present embodiment, first with wider spacing, two adjacent light sources 21 is set, between two light sources 21, illuminates blind area 4 and naturally produce, this illuminate light intensity in blind area 4 a little less than; And then be provided with breach 31 by the position in the dead astern of corresponding light source 21 in reflecting piece 3, thus the luminous reflectanc of breach 31 positions is weakened, thus the weak low-light level district 5 of light intensity that this position is formed; And then this low-light level district 5 with illuminate blind area 4 and be connected, and finally reach brightness effect comparatively uniformly.Therefore, the backlight module that the present embodiment provides to have frame narrower, the lower and good effect of uniformity light of cost; And applied the liquid crystal display of the backlight module that the present embodiment provides, and thering is frame narrower, cost is lower and can not produce the effect of lamp shadow phenomenon.
Further, in the present embodiment, breach 31 is extended in sheet by the sheet edge of reflecting piece 3.Thereby the breach 31 of being convenient to reflecting piece 3 once cuts moulding, and be convenient to make various shape, for example, breach 31 entirety can semicircular in shape, half elliptic, triangle, rectangle or polygonized structure etc.In other embodiments, breach 31 also can be for being located at the hollow hole in reflecting piece 3.
In the present embodiment, many light sources 21 are evenly arranged on lamp bar 2, correspondingly, and multiple breach 31 of reflecting piece 3 corresponding many light sources 21 and arranging equably respectively.
In the present embodiment, breach 31 entirety are kidney-shaped, form by two relative arc-shaped side edges 311 with the round and smooth base arcuate edge 312 being connected of two arc-shaped side edges 311.The light intensity exposing on reflector 3 due to light source 21 differs, and wherein, the variation tendency of light intensity is: centered by under light source 21, weaken gradually towards periphery that (depending on concrete condition, this center may deviate from certain distance under light source 21; Mostly situation, this center is the direction along perpendicular to lamp bar, towards away from light source 21 1 to departing from certain distance).Therefore in the present embodiment, breach 31 entirety are kidney-shaped, can coordinate preferably the distribution of light intensity, thereby the low-light level district 5 being formed by this breach 31 can join together preferably with lighting blind zone 4, thereby the effect of solution lamp shadow problem is better.
The optimum shape of the breach 31 of kidney-shaped is following shape: light source 21 irradiates reflector 3, and on reflector 3, forms brightness continually varying light district; Wherein, taking the brightness of illuminating blind area 4 as a reference value, delimit brightness in this light district higher than the region of k times of a reference value for need cut out district, then cut out reflector 3 according to this shape that need cut out district, thereby form the shape (k is coefficient, determines according to actual conditions) of breach 31.
In other embodiments, breach 31 also can be overall U-shaped, forms by relative dual-side with the round and smooth base being connected of dual-side.Be the benefit that U-shaped breach 31 has the processing of being easy to.
Particularly, the ultimate range at the base arcuate edge 312 sheet edge corresponding with it is 4 to 5 millimeters.If this distance too greatly, due to the reflective very few shadow that easily causes; If the too little solution DeGrain for lamp shadow of this distance.
Particularly, light source 21 is that lamp is wide along the full-size of the length direction of lamp bar 2, and light source 21 is positioned at the centre of two arc-shaped side edges 311 of the breach 31 that it is corresponding, roomy 0 millimeter to 0.4 millimeter compared with the lamp of light source 21 of the ultimate range between two arc-shaped side edges 311.Due in installing, phenomenon that may installation deviation, therefore pre-made allowance, can reduce the adverse effect that installation deviation is brought.
In the present embodiment, because the breach 31 of reflecting piece 3 needs and light source 21 correspondence one by one of lamp bar 2, and can not there is larger position deviation, therefore, in the present embodiment, also fixed structure be improved.
Incorporated by reference to referring to Fig. 5, in the present embodiment, backlight module also comprises the heat sink 6 for fixed light bar 2.Wherein, be also provided with positioning head 61 on heat sink 6, reflecting piece 3 is provided with the positioning seat 32 fixing with positioning head 61; Positioning seat 32 and positioning head 61 fix in the time of assembling, thereby reflecting piece 3 and lamp bar 2 are fixed.The backlight module that the present embodiment provides, in vibration, reflecting piece 3 and lamp bar 2 have good stability, are not easy to dislocation, off normal.
Particularly, this heat sink 6 is aluminum extrusion pieces, and the material of heat sink 6 is mainly aluminium, has good thermal diffusivity.Heat sink 6 global shape strips are so that fixed light bar 2.
Particularly, in the present embodiment, positioning head 61 is for being installed in riveting post on heat sink 6, and positioning seat 32 is for being opened in the hole in reflecting piece 3, and reflecting piece 3 and heat sink 6 are fixed by riveted joint.The coordinated scheme of positioning head 61 and positioning seat 32 like this, the accurate location that can realize reflecting piece 3 and lamp bar 2, can also make reflecting piece 3 be not easy relative LGP 1 and slide simultaneously, is difficult for and LGP 1 scratch, forms vibrations hickie.Certainly in other embodiment, positioning head 61 and positioning seat 32 can also be other fixed structures, be for example spirally connected, and clamping or bonding etc.
Particularly, in the present embodiment, light source 21 is LED.LED has the effect that Energy Efficiency Ratio is higher.Certainly can also be other point source of light, for example Lamp (bulb).
The utility model also provides a kind of liquid crystal display, and this liquid crystal display comprises above-mentioned side entrance back module disclosed in the utility model, and the structure of this side entrance back module can, with reference to above-described embodiment, not repeat them here.Naturally, because the liquid crystal display of the present embodiment has adopted the technical scheme of above-mentioned side entrance back module, therefore this liquid crystal display has all beneficial effects of above-mentioned side entrance back module.
These are only preferred embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model description and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a side entrance back module, comprise LGP, be located at the lamp bar of described LGP side and be located at described LGP reflecting piece below, on described lamp bar, be equiped with many light sources, in described many light sources, between every two adjacent described light sources, be formed with and illuminate blind area, it is characterized in that, the position in described reflecting piece dead astern of every light source in the described lamp bar of correspondence is respectively equipped with for illuminate a breach that forms low-light level district between blind area described in adjacent two.
2. side entrance back module as claimed in claim 1, is characterized in that, described breach is extended in sheet by the sheet edge of described reflecting piece.
3. side entrance back module as claimed in claim 2, is characterized in that, described breach entirety is kidney-shaped, forms by two relative arc-shaped side edges with the round and smooth base arcuate edge being connected of described two arc-shaped side edges.
4. side entrance back module as claimed in claim 2, is characterized in that, described breach entirety is U-shaped, forms by relative dual-side with the round and smooth base being connected of described dual-side.
5. side entrance back module as claimed in claim 3, is characterized in that, the ultimate range at the described base arcuate edge sheet edge corresponding with it is 4 millimeters to 5 millimeters.
6. side entrance back module as claimed in claim 3, it is characterized in that, described light source is that lamp is wide along the full-size of the length direction of lamp bar, described light source is positioned at the centre of the dual-side of its corresponding breach, roomy 0 to 0.4 millimeter of the lamp of the more described light source of ultimate range between described two arc-shaped side edges.
7. the side entrance back module as described in claim 1 to 6 any one, is characterized in that, described backlight module also comprises the heat sink for fixed light bar, and wherein, heat sink is provided with positioning head, and reflecting piece is provided with the positioning seat fixing with described positioning head.
8. side entrance back module as claimed in claim 7, is characterized in that, described positioning head is for being installed in riveting post on described heat sink, and described positioning seat is the hole being opened in described reflecting piece.
9. the side entrance back module as described in claim 1 to 6 any one, is characterized in that, described light source is LED.
10. a liquid crystal display, comprises backlight module, it is characterized in that, described backlight module is the backlight module described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884150.4U CN203731206U (en) | 2013-12-30 | 2013-12-30 | Side inlet type backlight module and liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884150.4U CN203731206U (en) | 2013-12-30 | 2013-12-30 | Side inlet type backlight module and liquid crystal display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203731206U true CN203731206U (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320884150.4U Expired - Fee Related CN203731206U (en) | 2013-12-30 | 2013-12-30 | Side inlet type backlight module and liquid crystal display |
Country Status (1)
| Country | Link |
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| CN (1) | CN203731206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290899A (en) * | 2017-07-21 | 2017-10-24 | 武汉华星光电技术有限公司 | Side entrance back module and liquid crystal display |
-
2013
- 2013-12-30 CN CN201320884150.4U patent/CN203731206U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107290899A (en) * | 2017-07-21 | 2017-10-24 | 武汉华星光电技术有限公司 | Side entrance back module and liquid crystal display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140723 Termination date: 20191230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |