CN202484730U - LED backlight module group - Google Patents
LED backlight module group Download PDFInfo
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- CN202484730U CN202484730U CN2011204171487U CN201120417148U CN202484730U CN 202484730 U CN202484730 U CN 202484730U CN 2011204171487 U CN2011204171487 U CN 2011204171487U CN 201120417148 U CN201120417148 U CN 201120417148U CN 202484730 U CN202484730 U CN 202484730U
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- led lamp
- lgp
- lamp bar
- led
- ink lay
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Abstract
The utility model provides an LED backlight module group, which comprises a light guide plate, an LED lamp strip, a scattering netted dot array arranged on the bottom surface of the light guide plate, and a printing ink layer that clings to the lower surface of the light guide plate. The LED backlight module group is characterized in that one surface of the printing ink layer with its back onto the light guide plate adopts an inwardly concave curved surface structure, while the axis of the curved surface structure is parallel to the LED lamp strip. Through improving the structure of the printing ink layer, the uniformity of the LED light luminance is realized.
Description
Technical field
The utility model relates to a kind of LED-backlit module.
Background technology
LED side-light type module backlight; As shown in Figure 1; Comprise substrate, be set in turn in reflector plate 50 on the substrate, ink lay 30, LGP 20, diffusion sheet 60, brightening piece 70 and last diffusion sheet 80 down from the bottom to top, also comprise be arranged at LGP 20 sides encapsulate the LED lamp bar 10 that forms by a plurality of LED.The light that LED lamp bar 10 sends gets into LGP 20 by the plane of incidence 201 of LGP 20; Light passes the bottom surface 202 of LGP 20; Most of light carries out scattering by the scattering netted dot array 40 that is printed in LGP 20 bottom surfaces 202 with light, penetrates from LGP 20 exiting surfaces 203.Also have part light penetration ink lay 30 in addition, this part light is reflected, get into through the bottom surface 202 of ink lay 30, and penetrate by the exiting surface 203 of LGP 20 by LGP 20 by reflector plate 50.The light that penetrates through LGP 20 exiting surfaces carries out light through diffusion sheet and brightening piece and spreads and add lustre to.
The density of arranging of leaded light site array 40 is even in the prior art, the thickness uniformity of ink lay 30, and the leaded light site is rounded and big or small unanimity.Cause the light of distance L ED lamp bar 10 immediate area better through LGP 20 light guide effects thus, make that the backlight illumination of liquid crystal display respective regions can be higher, briliancy, colour temperature are normal.But distance L ED lamp bar 10 just weakens through the light guide effect of LGP 20 than the light in territory, far field to some extent, and the briliancy of its liquid crystal display respective regions, colour temperature and homogeneity have just had bigger deviation, thereby influence viewing effect.
The utility model content
In view of this, the purpose of the utility model is to provide a kind of LED-backlit module, through changing the homogeneity that the ink lay structure realizes promoting LED light briliancy.
The LED-backlit module that the utility model provides comprises LGP 20, LED lamp bar 10, is arranged at the scattering netted dot array 40 of LGP 20 bottom surfaces and is closely set in the ink lay 30 on 20 times top layers of LGP; It is characterized in that,
The one side of said ink lay 30 face away from light guide 20 is inside recessed curved-surface structure.
By last, through changing the homogeneity that the ink lay structure realizes promoting LED light briliancy.
Optional, said LED lamp bar 10 is arranged at the relative both sides of LGP 20, and the said curved-surface structure of ink lay 30 is that parallel axes is in LED lamp bar 10 inside recessed curved-surface structures.
By last, when LED lamp bar 10 is arranged at the relative both sides of LGP 20, realize promoting the homogeneity of LED light briliancy.
Optional, said LED lamp bar 10 is arranged at a side of LGP 20, the said curved-surface structure of ink lay 30 be parallel axes in LED lamp 10 and away from LED lamp bar 10 1 side direction in recessed curved-surface structure.
By last, when LED lamp bar 10 is arranged at LGP 20 1 sides, realize promoting the homogeneity of LED light briliancy.
Optional, said LED lamp bar 10 is arranged at four limits of LGP 20, and the said curved-surface structure of ink lay 30 is middle inwardly recessed spherical structure.
By last, when LED lamp bar 10 is arranged at LGP 20 4 limits, realize promoting the homogeneity of LED light briliancy.
Optional, each scattering netted dot diameter of said scattering netted dot array 40 is with away from successively decreasing successively with the distance of LED lamp bar 10 adjacent edges.
Optional, each scattering netted dot diameter of said scattering netted dot array 40 increases with the distance away from LED lamp bar 10 successively.
Optional, the density of each scattering netted dot of said scattering netted dot array 40 increases with the distance away from LED lamp bar 10 successively.
By last, further realize promoting the homogeneity of LED light briliancy through the arrangement that changes the site array.
Optional, also comprising the reflector plate 50 that is closely set in ink lay 30 lower surfaces, reflector plate 50 one side of ink lay 30 dorsad is the planar structure that is parallel to LGP 20.
By last, realize the seamless spliced of ink lay and reflector plate.
Description of drawings
Fig. 1 is a LED side-light type back light module unit structure sketch map in the prior art;
Fig. 2 is the utility model LED side-light type back light module unit structure sketch map;
Fig. 3 is a scattering netted dot arrayed structural representation among the utility model first embodiment;
Fig. 4 is a scattering netted dot arrayed structural representation among the utility model second embodiment;
Fig. 5 is a scattering netted dot arrayed structural representation among the utility model the 3rd embodiment;
Fig. 6 is a scattering netted dot arrayed structural representation among the utility model the 4th embodiment.
The specific embodiment
The structural representation that has shown LGP in the utility model liquid crystal panel side-light type module backlight like Fig. 2; Comprise LGP 20, be arranged at the LED lamp bar 10 of LGP 20 both sides, be arranged at the scattering netted dot array 40 and the ink lay 30 that is arranged at LGP 20 bottoms of LGP 20 bottom surfaces 202.In addition, the utility model also comprises and is arranged at ink lay 30 bottoms and the reflector plate 50 that ink lay 30 pastes mutually, is arranged at the top of LGP 20, the following diffusion sheet 60, brightening piece 70 and the last diffusion sheet 80 that are sticked mutually successively and put.
The first embodiment sketch map like Fig. 2, light conducting plate structure shown in Figure 3; As shown in the figure; LGP 20 is a rectangular plate shape, and thickness is 3mm, comprises the plane of incidence 201 that is used to receive light source, is used for light source is carried out irreflexive bottom surface 202 and is used to derive the exit facet 203 of light source.
Scattering netted dot array 40 is arranged at the bottom surface 202 of LGP 20.The sketch map that scattering netted dot array 40 is arranged among first embodiment as shown in Figure 3.The adjacent columns scattering netted dot be spaced for: near the interval of LED lamp bar 10 greater than interval away from LED lamp bar 10.The distance in the adjacent columns scattering netted dot center of circle is identical.Minimum apart from the scattering netted dot diameter of both sides LED lamp bar 10 nearest files, increase progressively successively away from the leaded light site file of the LED lamp bar 10 scattering netted dot file of LGP 20 centre positions (promptly near) diameter.Wherein, the diameter of same file scattering netted dot is identical.
Light source gets into LGP 20 through the plane of incidence 201 of LGP 20, and light source carries out unordered conduction in LGP 20 inside, and the exiting surface 203 by LGP 20 after 40 scatterings of scattering netted dot array penetrates.Wherein, less relatively near the scattering netted dot diameter of LED lamp bar 10, relatively poor relatively to the dispersion effect of light thus, on the contrary preferable away from the light dispersion effect of LED lamp bar 10.Since stronger near LED lamp bar 10 place's light, make thus to get a promotion by LGP 20 exiting surfaces 202 bright dipping homogeneity.In addition, the part light source penetrates ink lay 30 and exposes to reflector plate 50, again by upwards reflection of reflector plate 50.Physical characteristic by printing ink draws, and printing ink contains high light scatterring material (SiO
2, TiO
2), the ink lay 30 of having thus has higher scattered power.Ink lay 30 both sides are thicker relatively and light is stronger near part ink lay 30 thickness of LED lamp bar 10, and the relative printing ink of the light centre position that penetrates ink lay 30 thus is more, and the loss that its ink lay causes is also more.In addition, light gets into ink lay 30 again after reflector plate 50 reflections.Accordingly, ink lay 30 thicker part losses are more.Therefore, make and further to be promoted by LGP 20 exiting surfaces 202 bright dipping homogeneity.
More excellent, the utility model also comprises second embodiment, the structure setting of ink lay 30 is identical with first embodiment, repeats no more.The sketch map that scattering netted dot array 40 is arranged in as shown in Figure 4; For ease of describing; The bottom surface 202 of LGP 20 is divided into A, B, C, four zones of D, is that example describes with the a-quadrant: in the scattering netted dot array 40, the nearest scattering netted dot diameter of distance L ED lamp bar 10 is minimum; Along with scattering netted dot gradually away from LED lamp bar 10, far and near proportional the increasing progressively of its diameter and distance L ED lamp bar 10.The scattering netted dot diameter that is left downside is minimum, to the a-quadrant upside and proportional successively the increasing progressively of diameter of distance L ED lamp bar 10 its scattering netted dots far away to the right, and between the adjacent columns scattering netted dot center of circle apart from identical.Said B, C, D zone are the mirror image of a-quadrant.Thus, the diameter of scattering netted dot can be set one by one by the distance of distance L ED lamp bar 10, further add the homogeneity of light source briliancy, and realize regulating the colour temperature of light source.
In addition, the sketch map of arranging like said the utility model the 3rd embodiment scattering netted dot array 40 of Fig. 5.As shown in the figure; The diameter of all scattering netted dots is identical in the scattering netted dot array 40; Its arrangement mode is: the distance between the scattering netted dot center of circle is by extremely being successively decreased far in proportion by near with the distance of LED lamp bar 10; Promptly lower near the outermost scattering netted dot array 40 of LED lamp bar 10 density of arranging, the distance L ED lamp bar 10 distances density of more far arranging is high more.Under the constant situation of scattering netted dot diameter, realize increasing the homogeneity of light source briliancy thus through the density of arranging of change scattering netted dot array 40.
The foregoing description is the both sides that LED lamp bar 10 is arranged at LGP 20.When LED lamp bar 10 is arranged at a side of LGP 20, the one side of ink lay 30 face away from light guide 20 be parallel axes in LED lamp bar 10 away from LED lamp bar 10 side direction in recessed curved-surface structure.Be understood that; Scattering netted dot array 40 arrangement principles are identical; Difference is that scattering netted dot array 40 is symmetric arrays among first, second and third embodiment; When LED lamp bar 10 was arranged at a side of LGP 20, the density of each scattering netted dot of scattering netted dot array 40 was increased by nearly LED lamp bar 10 1 side direction LED lamp far away bar 10 1 sides successively.
In addition, when LED lamp bar 10 is arranged at around the LGP 20, ink lay 30 face away from light guide 20 one sides be parallel axes in the centre of LED lamp bar 10 inside recessed spherical structure.It is as shown in Figure 6 that scattering netted dot array 40 is positioned at the arrangement of LGP 20 bottom surfaces 202, and the diameter of outermost scattering netted dot is minimum, and the diameter of scattering netted dot increases with the distance away from LED lamp bar 10 successively, and the diameter of the scattering netted dot in bosom is maximum.
The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model; All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (8)
1. LED-backlit module comprises: LGP (20), LED lamp bar (10), be arranged at the scattering netted dot array (40) of LGP (20) bottom surface and be closely set in the ink lay (30) on top layer under the LGP (20); It is characterized in that,
The one side of said ink lay (30) face away from light guide (20) is inside recessed curved-surface structure.
2. LED-backlit module according to claim 1; It is characterized in that; Said LED lamp bar (10) is arranged at the relative both sides of LGP (20), and the said curved-surface structure of ink lay (30) is that parallel axes is in the inside recessed curved-surface structure of LED lamp bar (10).
3. LED-backlit module according to claim 1; It is characterized in that; Said LED lamp bar (10) is arranged at a side of LGP (20), the said curved-surface structure of ink lay (30) be parallel axes in LED lamp (10) and away from LED lamp bar (10) one side direction in recessed curved-surface structure.
4. LED-backlit module according to claim 1 is characterized in that, said LED lamp bar (10) is arranged at four limits of LGP (20), and the said curved-surface structure of ink lay (30) is middle inwardly recessed spherical structure.
5. according to claim 2 or 3 described LED-backlit modules, it is characterized in that, further comprise: each scattering netted dot diameter of said scattering netted dot array (40) is with away from successively decreasing successively with the distance of LED lamp bar (10) adjacent edge.
6. according to the arbitrary described LED-backlit module of claim 2 to 4, it is characterized in that each scattering netted dot diameter of said scattering netted dot array (40) increases with the distance away from LED lamp bar (10) successively.
7. according to the arbitrary described LED-backlit module of claim 2 to 4, it is characterized in that the density of each scattering netted dot of said scattering netted dot array (40) increases with the distance away from LED lamp bar (10) successively.
8. according to the arbitrary described LED-backlit module of claim 1 to 4; It is characterized in that; Also comprise the reflector plate (50) that is closely set in ink lay (30) lower surface, reflector plate (50) one side of ink lay (30) dorsad is the planar structure that is parallel to LGP (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204171487U CN202484730U (en) | 2011-10-27 | 2011-10-27 | LED backlight module group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204171487U CN202484730U (en) | 2011-10-27 | 2011-10-27 | LED backlight module group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202484730U true CN202484730U (en) | 2012-10-10 |
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ID=46959151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204171487U Expired - Fee Related CN202484730U (en) | 2011-10-27 | 2011-10-27 | LED backlight module group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202484730U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013149546A1 (en) * | 2012-04-06 | 2013-10-10 | 北京京东方光电科技有限公司 | Light guide plate, backlight source and liquid crystal display device |
| CN108627905A (en) * | 2017-03-17 | 2018-10-09 | 江苏日月照明电器有限公司 | A kind of light guide plate mesh point arrangement that outgoing light homogeneity is high |
-
2011
- 2011-10-27 CN CN2011204171487U patent/CN202484730U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013149546A1 (en) * | 2012-04-06 | 2013-10-10 | 北京京东方光电科技有限公司 | Light guide plate, backlight source and liquid crystal display device |
| US9164224B2 (en) | 2012-04-06 | 2015-10-20 | Beijing Boe Optoelectronics Technology Co., Ltd. | Light guide plate, backlight source and liquid crystal display device |
| CN108627905A (en) * | 2017-03-17 | 2018-10-09 | 江苏日月照明电器有限公司 | A kind of light guide plate mesh point arrangement that outgoing light homogeneity is high |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151116 Address after: 266101 Haier Information Park, 1 Haier Road, hi tech park, Laoshan District, Qingdao, Shandong Patentee after: Qingdao Haier Photoelectric Co., Ltd. Patentee after: haier group corporation Patentee after: Qingdao Haier Electric Appliance Co., Ltd. Patentee after: Qingdao Jiaonan Haier Electronic Co., Ltd. Patentee after: QINGDAO HAIER MULTI-MEDIA CO., LTD. Address before: 266101 Haier Information Park, 1 Haier Road, hi tech park, Laoshan District, Qingdao, Shandong Patentee before: Qingdao Haier Photoelectric Co., Ltd. Patentee before: haier group corporation Patentee before: Qingdao Haier Electric Appliance Co., Ltd. Patentee before: Qingdao Jiaonan Haier Electronic Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121010 Termination date: 20201027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |