CN203385969U - Backlight module - Google Patents
Backlight module Download PDFInfo
- Publication number
- CN203385969U CN203385969U CN201320478868.3U CN201320478868U CN203385969U CN 203385969 U CN203385969 U CN 203385969U CN 201320478868 U CN201320478868 U CN 201320478868U CN 203385969 U CN203385969 U CN 203385969U
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- CN
- China
- Prior art keywords
- guide plate
- light guide
- glue frame
- blooming piece
- backlight module
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Abstract
The utility model discloses a backlight module which can effectively reduce shadows on a hanging lug of an optical membrane. The backlight module comprises a light guide plate, a rubber frame and the optical membrane, wherein light guide plate mesh points are arranged on the light guide plate, a reflector plate is arranged on the bottom of the light guide plate, a light-emitting source is arranged on one side, where the rubber frame is arranged, of the light guide plate, the light guide plate is installed below the rubber frame, the optical membrane is installed above the rubber frame, the distribution density of the light guide plate mesh points arranged on the joint between the light guide plate and the rubber frame is larger than the distribution density of the light guide plate mesh points away from the rubber frame, and the light guide plate mesh points arranged on the joint between the light guide plate and the rubber frame are distributed in a uniformly staggered mode by every two adjacent lines. The backlight module has the advantages that the distribution density and the distribution structure of the light guide plate mesh points and changes of the structure of the optical membrane are added to increase intensity and uniformity of light to reduce the shadows on the hanging lug of the optical membrane.
Description
Technical field
The utility model relates to the display correlative technology field, refers in particular to a kind of backlight module.
Background technology
Along with the continuous progress of science and technology, the technology of liquid crystal display is also more and more ripe.Along with the development of back light model setting technology, being used in conjunction with of light guide plate and blooming piece overcome the insoluble problem of many traditional opticals greatly, thereby obtained promoting comparatively widely.Light guide plate and blooming piece all are placed on the glue frame of display, wherein light guide plate is placed on the downside of glue frame, and blooming piece is placed on the upper side of glue frame, light guide plate is provided with light guide plate mesh point can convert pointolite to area source, realize the Presentation Function of display, and blooming piece is in order can further to make light evenly and to improve light luminance.Blooming piece adopts hanger structure to be secured on the glue frame, but the light that the glue frame is caught for light guide plate has certain effect of blocking, and causes the subregion light of blooming piece on the glue frame more weak, and has the shadow phenomenon.
Chinese patent application publication No.: CN 102418880A, April 18 2012 Shen Qing Publication day, a kind of backlight module is disclosed, it comprises backboard, light source module and the light guide plate be placed in backboard, described light guide plate comprises incidence surface, described light source module is placed in outside described backboard, also comprise that the light that described light source module is sent is directed into the light pipe of the incidence surface of described light guide plate, the light source module of the backlight module of this invention is positioned at the outside of described backboard, by light pipe, light is sent to backlight module inside, effectively solved bad the brought problem of traditional backlight module heat dispersion, but the weak point of this invention is, still can not solve blooming piece and be placed in part on the glue frame because light stops, itself and the part do not shut out the light are compared down, exist the hangers place of blooming piece to have the shadow phenomenon.
The utility model content
The utility model is to have the deficiency of shadow phenomenon at the hangers place in order to overcome blooming piece in prior art, provides a kind of and can effectively cut down the backlight module of blooming piece at hangers place shadow.
To achieve these goals, the utility model is by the following technical solutions:
A kind of backlight module, comprise light guide plate, glue frame and blooming piece, described light guide plate is provided with light guide plate mesh point, described light guide plate bottom is provided with reflector plate, the side that described light guide plate is placed in the glue frame is provided with light emitting source, described light guide plate is arranged on the below of glue frame, described blooming piece is arranged on the top of glue frame, the intersection distribution density that described light guide plate mesh point is placed in light guide plate and glue frame is greater than the distribution density of light guide plate mesh point away from Jiao Kuangchu, and the light guide plate mesh point intersection that is placed in light guide plate and glue frame is distributed as adjacent two row and evenly is interspersed.
This backlight module becomes pointolite into area source by the light guide plate mesh point on light guide plate, the intersection distribution density that is placed in light guide plate and glue frame due to light guide plate mesh point is greater than the distribution density of light guide plate mesh point away from Jiao Kuangchu, make light guide plate want high in other local brightness of brightness ratio of the intersection of light guide plate and glue frame, the intersection that simultaneously due to light guide plate mesh point, is placed in light guide plate and glue frame is distributed as adjacent two row and evenly is interspersed, can effectively improve the distributing homogeneity of light guide plate glazing, make the light on light guide plate have certain brightness to strengthen at the intersection of light guide plate and glue frame, thereby weakened blooming piece hangers place shadow, reached and can effectively cut down the purpose of blooming piece at hangers place shadow.
As preferably, the upper surface of described blooming piece is provided with the diffusion particulate from the intersection that is placed in light guide plate and glue frame to its edge, the xsect of described upper diffusion particulate is parallelogram, the vergence direction of described parallelogram is the direction from the intersection of light guide plate and glue frame to blooming piece edge, when the light transmission blooming piece arrives the blooming piece upper surface, effect due to upper diffusion particulate, make light to the refraction of blooming piece hangers place, thereby subdue the shadow of blooming piece at the hangers place.
As preferably, described parallelogram consists of two the same right-angle triangles, has improved the refractive index of light in upper diffusion particulate the inside, makes blooming piece can obtain more light at the hangers place.
As preferably, gapped between described adjacent two upper diffusion particulates, the width in described gap is less than the height of parallelogram, from previous, diffusion particulate light out enters into air, make light to move on the whole, and then enter into next upper diffusion particulate, can effectively improve the utilization factor of light.
As preferably, other zones of the upper surface of described blooming piece are provided with the spherical diffusion particulate, and other zones of described spherical diffusion particulate close contact distribution optics diaphragm upper surface are upper, the uniformity coefficient and the brightness that improve light.
As preferably, the lower surface of described blooming piece is provided with lower diffusion particulate, described lower diffusion particulate is the elliposoidal particulate, / 2nd volumes that described elliposoidal particulate contains minor axis are placed in blooming piece, between described adjacent two elliposoidal particulates, interval is arranged, can make the light light guide plate more assemble on the one hand, make on the other hand between blooming piece and light guide plate and have certain gap, form an air layer.
As preferably, the top of described glue frame is provided with for placing the sunk part of blooming piece hangers, described sunk part is provided with the raised line for the positioning optical diaphragm, and the position of the described light emitting source that is placed in glue frame below is corresponding with the position of raised line above being placed in the glue frame.
As preferably, described raised line is provided with some light holes, makes the part light on blooming piece can see through the hangers place that light hole directly enter into blooming piece, to cut down the shadow at blooming piece hangers place.
The beneficial effects of the utility model are: by the distribution density that increases light guide plate mesh point and intensity and the uniformity coefficient that distributed architecture increases light; Upper diffusion particulate by the blooming piece upper surface comes refracted ray to make its hangers place that enters into blooming piece, to cut down the shadow of blooming piece at the hangers place; By the lower diffusion particulate of blooming piece lower surface, make between blooming piece and light guide plate and form an air layer; By the light hole of raised line on the glue frame, further strengthened the diffusivity of light, in order to further cut down the shadow of blooming piece at the hangers place.
The accompanying drawing explanation
Fig. 1 is part-structure schematic diagram of the present utility model;
Fig. 2 is the cross-sectional view at A-A place in Fig. 1;
Fig. 3 is the structural representation of blooming piece.
In figure: 1. glue frame, 2. blooming piece, 3. light guide plate mesh point, 4. raised line, 5. light guide plate, 6. reflector plate, 7. light emitting source, 8. light hole, spread particulate, 22. spherical diffusion particulates, 23. times diffusion particulates on 21..
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As Fig. 1, Fig. 2, in the described embodiment of Fig. 3, a kind of backlight module, comprise light guide plate 5, glue frame 1 and blooming piece 2, light guide plate 5 is provided with light guide plate mesh point 3, light guide plate 5 bottoms are provided with reflector plate 6, the side that light guide plate 5 is placed in glue frame 1 is provided with light emitting source 7, light guide plate 5 is arranged on the below of glue frame 1, blooming piece 2 is arranged on the top of glue frame 1, light guide plate mesh point 3 is placed in light guide plate 5 and is greater than the distribution density of light guide plate mesh point 3 away from glue frame 1 place with the intersection distribution density of glue frame 1, and the intersection that light guide plate mesh point 3 is placed in light guide plate 5 and glue frame 1 is distributed as adjacent two row and evenly is interspersed, wherein: the intersection distribution density that light guide plate mesh point 3 is placed in light guide plate 5 and glue frame 1 is light guide plate mesh point 3 away from 1.5 times of the distribution density at glue frame 1 place.The upper surface of blooming piece 2 is provided with diffusion particulate 21 with the intersection of glue frame 1 to its edge from being placed in light guide plate 5, the xsect of upper diffusion particulate 21 is parallelogram, the vergence direction of parallelogram is the direction from the intersection of light guide plate 5 and glue frame 1 to blooming piece 2 edges, parallelogram consists of two the same right-angle triangles, gapped between adjacent two upper diffusion particulates 21, the width in gap is less than the height of parallelogram.Other zones of the upper surface of blooming piece 2 are provided with spherical diffusion particulate 22, on other zones of spherical diffusion particulate 22 close contact distribution optics diaphragm 2 upper surfaces.The lower surface of blooming piece 2 is provided with lower diffusion particulate 23, and lower diffusion particulate 23 is the elliposoidal particulate, and 1/2nd volumes that the elliposoidal particulate contains minor axis are placed in blooming piece 2, between adjacent two elliposoidal particulates, interval is arranged.The top of glue frame 1 is provided with for placing the sunk part of blooming piece 2 hangers, sunk part is provided with the raised line 4 for positioning optical diaphragm 2, raised line 4 is provided with some light holes 8, and the position of light emitting source 7 that is placed in glue frame 1 below is corresponding with the position of the raised line 4 that is placed in glue frame 1 top.Wherein: the spherical diffusion particulate 22 of blooming piece 2 upper surfaces and 1/2nd volumes of upper diffusion particulate 21 are placed in blooming piece 2.
This backlight module becomes pointolite into area source by the light guide plate mesh point 3 on light guide plate 5, because being placed in light guide plate 5, light guide plate mesh point 3 is greater than the distribution density of light guide plate mesh point 3 away from glue frame 1 place with the intersection distribution density of glue frame 1, make light guide plate 5 want high in light guide plate 5 and other local brightness of brightness ratio of the intersection of glue frame 1, the intersection that simultaneously due to light guide plate mesh point 3, is placed in light guide plate 5 and glue frame 1 is distributed as adjacent two row and evenly is interspersed, can effectively improve the distributing homogeneity of light guide plate 5 glazings, make the light on light guide plate 5 have certain brightness to strengthen at light guide plate 5 and the intersection of glue frame 1, thereby blooming piece 2 hangers place shadows have been weakened.The light source of being launched by light guide plate 5, when the lower surface through blooming piece 2, due to the effect of elliposoidal particulate, can play certain optically focused effect, improves intensity of illumination and indirectly eliminates blooming piece 2 hangers place shadows.When light arrives blooming piece 2 upper surface, a part of light is undertaken luminous by spherical diffusion particulate 22, increased luminous intensity, be placed in the light of light guide plate 5 and the intersection of glue frame 1 by upper diffusion particulate 21, the parallelogram of xsect for being formed by two the same right-angle triangles due to upper diffusion particulate 21, wherein, right-angle triangle is the direct triangles of isosceles, light enters while arriving hypotenuse from the right-angle side of a right-angle triangle, go out blooming piece 2 after part light refraction luminous, enter into another right-angle triangle after another part emission, while arriving the hypotenuse in this right-angle triangle, carry out refraction and the reflection of secondary, it is luminous that the light of reflection goes out blooming piece 2 from the right-angle side of another right-angle triangle, upper diffusion particulate 21 after light after refraction enters into, optics route before repeating, the light carried out again is delivered in next upper diffusion particulate 21, so repeatedly, make light be transmitted to blooming piece 2 edges by the inclined-plane of upper diffusion particulate 21, owing between upper diffusion particulate 21, being provided with certain interval, because the refractive index of upper diffusion particulate 21 is greater than the refractive index of air, while making the light reflected in diffusion particulate 21 from previous be delivered in air, it is large that refraction angle becomes, thereby make light move on the whole by air dielectric, can there is more light to arrive next upper diffusion particulate 21, thereby improved the utilization factor of light, by the light hole 8 on raised line 4, make light directly to enter into blooming piece 2 hangers places by light hole 8 in addition, further eliminate the shadow at blooming piece 2 hangers places.
Claims (8)
1. a backlight module, it is characterized in that, comprise light guide plate (5), glue frame (1) and blooming piece (2), described light guide plate (5) is provided with light guide plate mesh point (3), described light guide plate (5) bottom is provided with reflector plate (6), the side that described light guide plate (5) is placed in glue frame (1) is provided with light emitting source (7), described light guide plate (5) is arranged on the below of glue frame (1), described blooming piece (2) is arranged on the top of glue frame (1), described light guide plate mesh point (3) is placed in light guide plate (5) and is greater than with the intersection distribution density of glue frame (1) distribution density that light guide plate mesh point (3) is located away from glue frame (1), and the intersection that light guide plate mesh point (3) is placed in light guide plate (5) and glue frame (1) is distributed as adjacent two row and evenly is interspersed.
2. a kind of backlight module according to claim 1, it is characterized in that, the upper surface of described blooming piece (2) is provided with diffusion particulate (21) with the intersection of glue frame (1) to its edge from being placed in light guide plate (5), the xsect of described upper diffusion particulate (21) is parallelogram, and the vergence direction of described parallelogram is the direction from the intersection of light guide plate (5) and glue frame (1) to blooming piece (2) edge.
3. a kind of backlight module according to claim 2, is characterized in that, described parallelogram consists of two the same right-angle triangles.
4. according to the described a kind of backlight module of claim 2 or 3, it is characterized in that, gapped between described adjacent two upper diffusion particulates (21), the width in described gap is less than the height of parallelogram.
5. a kind of backlight module according to claim 2, it is characterized in that, other zones of upper surface of described blooming piece (2) are provided with spherical diffusion particulate (22), on other zones of described spherical diffusion particulate (22) close contact distribution optics diaphragm (2) upper surface.
6. a kind of backlight module according to claim 1 and 2, it is characterized in that, the lower surface of described blooming piece (2) is provided with lower diffusion particulate (23), described lower diffusion particulate (23) is the elliposoidal particulate, / 2nd volumes that described elliposoidal particulate contains minor axis are placed in blooming piece (2), between described adjacent two elliposoidal particulates, interval are arranged.
7. a kind of backlight module according to claim 1, it is characterized in that, the top of described glue frame (1) is provided with for placing the sunk part of blooming piece (2) hangers, described sunk part is provided with for the raised line of positioning optical diaphragm (2) (4), and the position of the described light emitting source (7) that is placed in glue frame (1) below is corresponding with the position of raised line (4) above being placed in glue frame (1).
8. a kind of backlight module according to claim 7, is characterized in that, described raised line (4) is provided with some light holes (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478868.3U CN203385969U (en) | 2013-08-06 | 2013-08-06 | Backlight module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320478868.3U CN203385969U (en) | 2013-08-06 | 2013-08-06 | Backlight module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203385969U true CN203385969U (en) | 2014-01-08 |
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ID=49874440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320478868.3U Expired - Fee Related CN203385969U (en) | 2013-08-06 | 2013-08-06 | Backlight module |
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| Country | Link |
|---|---|
| CN (1) | CN203385969U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424931A (en) * | 2013-08-06 | 2013-12-04 | 宁波市能捷电子有限公司 | Backlight module |
| CN108710241A (en) * | 2018-08-10 | 2018-10-26 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display die set and electronic device |
| CN108761922A (en) * | 2018-08-10 | 2018-11-06 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display die set and electronic device |
| CN108776413A (en) * | 2018-08-10 | 2018-11-09 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display die set and electronic device |
| WO2020029676A1 (en) * | 2018-08-10 | 2020-02-13 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display module, and electronic device |
| WO2020029677A1 (en) * | 2018-08-10 | 2020-02-13 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display module and electronic device |
-
2013
- 2013-08-06 CN CN201320478868.3U patent/CN203385969U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103424931A (en) * | 2013-08-06 | 2013-12-04 | 宁波市能捷电子有限公司 | Backlight module |
| CN108710241A (en) * | 2018-08-10 | 2018-10-26 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display die set and electronic device |
| CN108761922A (en) * | 2018-08-10 | 2018-11-06 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display die set and electronic device |
| CN108776413A (en) * | 2018-08-10 | 2018-11-09 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display die set and electronic device |
| WO2020029676A1 (en) * | 2018-08-10 | 2020-02-13 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display module, and electronic device |
| WO2020029677A1 (en) * | 2018-08-10 | 2020-02-13 | Oppo广东移动通信有限公司 | Backlight module, liquid crystal display module and electronic device |
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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: 20140108 Termination date: 20150806 |
|
| EXPY | Termination of patent right or utility model |