CN206193408U - Back light module and liquid crystal display device - Google Patents
Back light module and liquid crystal display device Download PDFInfo
- Publication number
- CN206193408U CN206193408U CN201620875191.0U CN201620875191U CN206193408U CN 206193408 U CN206193408 U CN 206193408U CN 201620875191 U CN201620875191 U CN 201620875191U CN 206193408 U CN206193408 U CN 206193408U
- Authority
- CN
- China
- Prior art keywords
- light
- guide plate
- light guide
- backlight module
- liquid crystal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 33
- 239000003292 glue Substances 0.000 claims abstract description 37
- 239000002390 adhesive tape Substances 0.000 claims description 8
- 239000010408 film Substances 0.000 description 26
- 230000000694 effects Effects 0.000 description 3
- 239000012788 optical film Substances 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
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- Liquid Crystal (AREA)
Abstract
The utility model discloses a back light module and liquid crystal display device, backlight unit include light source, bottom plate, light guide plate, glue frame, optics diaphragm and shading film, glue the frame inboard and be provided with a diaphragm and sink the groove, under the circumstances of the shape size that does not change gluey frame, light guide plate and shading film, can furthest increase the size of optics diaphragm to guarantee that the optics diaphragm can cover the light guide plate totally, and the overlap region of furthest increasing optics diaphragm and shading film, like this, just can prevent to cause because of blooming timing off normal on chip the appearance of the problem of bright border effectively, solve among the prior art technical problem that the bright border appears in back light module and liquid crystal display device easily.
Description
Technical field
The utility model is related to a kind of field of liquid crystal display, more particularly to a kind of backlight module for effectively preventing light leak with
And liquid crystal display device.
Background technology
With flourishing for opto-electronics, liquid crystal display (Liquid Crystal Display, LCD) is widely
Apply in various electric equipment products, and the area source that the picture of liquid crystal display needs are provided by backlight module can just be shown
It is existing.Therefore, backlight module is the indispensable significant components of liquid crystal display.
Fig. 1 is the top view of the structural representation of traditional backlight module, and Fig. 2 is cutting along the A-A ' section lines in Fig. 1
Face figure.Please referring initially to Fig. 1 and Fig. 2, traditional backlight module is because the limitation of glue frame inner space size, causes blooming piece
Size is limited, and blooming piece is less than normal with the overlap of shading film.In this case, if blooming piece is in assembling
Off normal is there occurs, the phenomenon generation that backlight module operationally has bright border is may result in, so as to cause the aobvious of liquid crystal display
Show effect on driving birds is not good.
Therefore be necessary to provide a kind of smooth module and liquid crystal display device, to solve the problems, such as prior art.
Utility model content
The utility model provides a kind of backlight module and liquid crystal display device with diaphragm deep gouge, to solve existing skill
Backlight module and liquid crystal display device in art, can when blooming piece is assembled off normal and caused by bright border problem.
In order to solve the above technical problems, the technical solution of the utility model is：A kind of backlight module, the backlight module bag
Include：
Light source；
Base plate；
Light guide plate, for side light source to be converted into area source, and uniformly sends upwards, is arranged on the upper of the base plate
Side, the light guide plate includes incidence surface and light-emitting area, and the upper surface of the light guide plate is the light-emitting area；
Blooming piece, the positive brightness for improving the light sent from the light guide plate, is arranged in the light-emitting area, institute
State blooming piece and the light-emitting area is completely covered；
Glue frame, for fixing the light guide plate, and is pasted onto on the base plate, and the glue frame inside upper part is provided with diaphragm
Deep gouge, the edge part of the blooming piece is located inside the diaphragm deep gouge；
Shading film, for preventing backlight module light leak, is fixed on the light-emitting area of the glue frame, the shading film and institute
Stating blooming piece has an overlapping regions.
On backlight module described in the utility model, the shading film is border shape.
On backlight module described in the utility model, the thickness of the shading film is 0.045-0.055 millimeters.
On backlight module described in the utility model, four sides of the light-emitting area be located at the overlapping regions just under
Side.
On backlight module described in the utility model, the glue frame is fixed by double faced adhesive tape with the base plate sticking.
The utility model further relates to a kind of liquid crystal display device, wherein the liquid crystal display device includes：
Display panel；And
Backlight module, including：
Light source；
Base plate；
Light guide plate, for side light source to be converted into area source, and uniformly sends upwards, is arranged on the upper of the base plate
Side, the light guide plate includes incidence surface and exiting surface, and the upper surface of the light guide plate is the light-emitting area；
Blooming piece, the positive brightness for improving the light sent from the light guide plate, is arranged in the light-emitting area, institute
State blooming piece and the light-emitting area is completely covered；
Glue frame, for fixing the light guide plate, and is pasted onto on the base plate, and the glue frame inside upper part is provided with diaphragm
Deep gouge, the edge part of the blooming piece is located inside the diaphragm deep gouge；
Shading film, for preventing backlight module light leak, is fixed on the upper surface of the glue frame, the shading film and institute
Stating blooming piece has an overlapping regions.
Preferably, the shading film is border shape.
Preferably, the thickness of the shading film is 0.045-0.055 millimeters.
Preferably, four sides of the light-emitting area are located at the underface of the overlapping regions.
Preferably, the glue frame is fixed by double faced adhesive tape with the base plate sticking.
The utility model, due to the presence of diaphragm deep gouge, is not changing glue frame, light guide plate compared with existing backlight module
And in the case of the shape size of shading film, can to greatest extent increase the size of blooming piece, to ensure optical film
Piece can be completely covered light guide plate, and increase the overlapping regions of blooming piece and shading film to greatest extent.In this manner it is possible to
It is effective prevent off normal when blooming piece is assembled and caused by bright border problem appearance.
Brief description of the drawings
Specific embodiment of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the top view of the structural representation of traditional backlight module.
Fig. 2 is the sectional view along the A-A ' section lines in Fig. 1.
Fig. 3 is the top view of the preferred embodiment structural representation of backlight module of the present utility model.
Fig. 4 is the sectional view along the B-B ' section lines in Fig. 3.
The title of the respective digital representated by numeral in figure：11st, glue frame, 12, shading film, 13, blooming piece, 14,
Light guide plate, 15, base plate, 16, double faced adhesive tape, 19, light source；
21st, glue frame, 22, shading film, 23, blooming piece, 24, light guide plate, 25, base plate, 26, double faced adhesive tape, 27, diaphragm sinks
Groove, 28, overlapping regions, 29, light source.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art do not make institute under the premise of creative work
Every other embodiment is obtained, the scope of the utility model protection is belonged to.
In figure, the similar unit of structure is represented with same-sign.
Refer to the vertical view of Fig. 3 and preferred embodiment structural representation that Fig. 4, Fig. 3 are backlight module of the present utility model
Figure, Fig. 4 is the sectional view along the B-B ' section lines in Fig. 3.
The utility model provides a kind of technical scheme：A kind of backlight module, the backlight module includes glue frame 21, shading glue
Piece 22, blooming piece 23, light guide plate 24, base plate 25 and light source 29.
Light guide plate 24 is arranged on base plate 25, and is fixed by glue frame 21.The inside upper part of glue frame 21 is provided with diaphragm and sinks
Groove 27, blooming piece 23 is arranged in the light-emitting area of light guide plate 24, and the surrounding edge point of blooming piece 23 is arranged on diaphragm and sinks
The inside of groove 27, shading film 22 and blooming piece 23 have an overlapping regions 28.
Shading film 22 is border shape, the thickness of shading film 22 is 0.045-0.055 millimeter, and light guide plate 24 lights
Four sides in face are located at the underface of overlapping regions 28, so as to ensure that overlapping regions can cover the surrounding of light guide plate 24, glue frame 21
Pasted by double faced adhesive tape 26 and base plate 25 and fixed.
The operation principle of backlight module of the present utility model：
First switch on power, the transmitting light source of light source 29 injects light guide plate 24, then light guide plate 24 from the incidence surface of light guide plate 24
Side light source is converted into area source again, is projected from the light-emitting area of light guide plate 24.
Blooming piece 23 is processed the light projected from the light-emitting area of light guide plate 24, so as to improve facing for backlight module
Brightness.And overlapping regions 28 that blooming piece 23 and shading film 22 are formed, will can spill from the surrounding of blooming piece 23
Light is blocked, and prevents backlight module from bright border occur because of light leak.
So complete the course of work of backlight module of the present utility model.
This preferred embodiment sets diaphragm deep gouge 27 by the inner side of glue frame 21, do not change glue frame 21, light guide plate 24 with
And in the case of the shape size of shading film 22, can to greatest extent increase the size of blooming piece 23, to ensure optics
Diaphragm 23 can be completely covered light guide plate 24, and increase the overlapping regions of blooming piece 23 and shading film 22 to greatest extent
27.And the scope of overlapping regions 27 is bigger, the viewing area of the region distance backlight module of the surrounding light leak of blooming piece 23 is got over
Far, it is just smaller that the light for so spilling influences on the display effect of backlight module.When overlapping regions 27 is sufficiently large, backlight
Module would not occur occurring the problem of bright border because of light leak.
The utility model also includes a kind of liquid crystal display device, and it includes display panel, and backlight module；The backlight
Module includes glue frame 21, shading film 22, blooming piece 23, light guide plate 24, base plate 25 and light source 29.
Light guide plate 24 is arranged on base plate 25, and is fixed by glue frame 21.The inside upper part of glue frame 21 is provided with diaphragm and sinks
Groove 27, blooming piece 23 is arranged in the light-emitting area of light guide plate 24, and the surrounding edge point of blooming piece 23 is arranged on diaphragm and sinks
The inside of groove 27, shading film 22 and blooming piece 23 have an overlapping regions 28.
Shading film 22 is border shape, the thickness of shading film 22 is 0.045-0.055 millimeter, and light guide plate 24 lights
Four sides in face are located at the underface of overlapping regions 28, so as to ensure that overlapping regions can cover the surrounding of light guide plate 24, glue frame 21
Pasted by double faced adhesive tape 26 and base plate 25 and fixed.
The operation principle of liquid crystal display of the present utility model：
First switch on power, the transmitting light source of light source 29 injects light guide plate 24, then light guide plate 24 from the incidence surface of light guide plate 24
Side light source is converted into area source again, is projected from the light-emitting area of light guide plate 24.
Blooming piece 23 is processed the light projected from the light-emitting area of light guide plate 24, so as to improve liquid crystal display device
Positive brightness；And the overlapping regions 28 that blooming piece 23 and shading film 22 are formed, will can leak from the surrounding of blooming piece 23
The light for going out is blocked, and prevents liquid crystal display device from bright border occur because of light leak；Finally, corresponding pattern is shown by display panel.
So complete the course of work of liquid crystal display device of the present utility model.
The liquid crystal display device of this preferred embodiment, diaphragm deep gouge 27 is set by the inner side of glue frame 21, is not changing glue
In the case of the shape size of frame 21, light guide plate 24 and shading film 22, can to greatest extent increase blooming piece 23
Size, to ensure that blooming piece 23 can be completely covered light guide plate 24, and increases blooming piece 23 and shading glue to greatest extent
The overlapping regions 27 of piece 22；And the scope of overlapping regions 27 is bigger, the region distance backlight module of the surrounding light leak of blooming piece 23
Viewing area it is more remote, the light for so spilling is just smaller on the influence of the display effect of liquid crystal display device；Work as overlapping regions
27 it is sufficiently large when, liquid crystal display device would not occur occurring the problem of bright border because of light leak.
The backlight module and liquid crystal display device of this preferred embodiment, the used inner side in glue frame 21 set diaphragm deep gouge
27, so that the scope increase of the overlapping regions 27 that blooming piece 23 is constituted with shading film 22, so as to increase blooming piece
The distance between viewing area of the region of 23 surrounding light leaks and backlight module and liquid crystal display device, so as to ensure not have
Bright border occurs.Solve backlight module in the prior art and liquid crystal display device may be because of light-leaking area from viewing area
It is too near, and there is the technical problem of bright border.
In sum, although the utility model is disclosed above with preferred embodiment, but above preferred embodiment is not used
To limit the utility model, one of ordinary skill in the art is not departing from spirit and scope of the present utility model, can do
Various changes are defined with retouching, therefore protection domain of the present utility model by the scope that claim is defined.
Claims (10)
1. a kind of backlight module, it is characterised in that the backlight module includes：
Light source；
Base plate；
Light guide plate, for side light source to be converted into area source, and uniformly sends upwards, is arranged on the top of the base plate, institute
Stating light guide plate includes incidence surface and light-emitting area, and the upper surface of the light guide plate is the light-emitting area；
Blooming piece, the positive brightness for improving the light sent from the light guide plate, is arranged in the light-emitting area, the light
Learn diaphragm and the light-emitting area is completely covered；
Glue frame, for fixing the light guide plate, and is pasted onto on the base plate, and the glue frame inside upper part is provided with diaphragm and sinks
Groove, the edge part of the blooming piece is located inside the diaphragm deep gouge；
Shading film, for preventing backlight module light leak, is fixed on the upper surface of the glue frame, the shading film and the light
Learning diaphragm has an overlapping regions.
2. backlight module according to claim 1, it is characterised in that the shading film is border shape.
3. backlight module according to claim 1, it is characterised in that the thickness of the shading film is 0.045-0.055
Millimeter.
4. backlight module according to claim 1, it is characterised in that four sides of the light-emitting area are located at the overlapping regions
Underface.
5. backlight module according to claim 1, it is characterised in that the glue frame passes through double faced adhesive tape and the base plate sticking
It is fixed.
6. a kind of liquid crystal display device, it is characterised in that the liquid crystal display device includes：
Display panel；And
Backlight module, including：
Light source；
Base plate；
Light guide plate, for side light source to be converted into area source, and uniformly sends upwards, is arranged on the top of the base plate, institute
Stating light guide plate includes incidence surface and light-emitting area, and the upper surface of the light guide plate is the light-emitting area；
Blooming piece, the positive brightness for improving the light sent from the light guide plate, is arranged in the light-emitting area, the light
Learn diaphragm and the light-emitting area is completely covered；
Glue frame, for fixing the light guide plate, and is pasted onto on the base plate, and the glue frame inside upper part is provided with diaphragm and sinks
Groove, the edge part of the blooming piece is located inside the diaphragm deep gouge；
Shading film, for preventing backlight module light leak, is fixed on the upper surface of the glue frame, the shading film and the light
Learning diaphragm has an overlapping regions.
7. liquid crystal display device according to claim 6, it is characterised in that the shading film is border shape.
8. liquid crystal display device according to claim 6, it is characterised in that the thickness of the shading film is 0.045-
0.055 millimeter.
9. liquid crystal display device according to claim 6, it is characterised in that four sides of the light-emitting area are located at the overlap joint
The underface in region.
10. liquid crystal display device according to claim 6, it is characterised in that the glue frame passes through double faced adhesive tape and the bottom
Plate is pasted and is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620875191.0U CN206193408U (en) | 2016-08-12 | 2016-08-12 | Back light module and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620875191.0U CN206193408U (en) | 2016-08-12 | 2016-08-12 | Back light module and liquid crystal display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206193408U true CN206193408U (en) | 2017-05-24 |
Family
ID=58736842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620875191.0U Expired - Fee Related CN206193408U (en) | 2016-08-12 | 2016-08-12 | Back light module and liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206193408U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776402A (en) * | 2018-08-28 | 2018-11-09 | 广州供电局有限公司 | Three-phase backlight electric energy meter and its display module |
| CN110928052A (en) * | 2019-12-25 | 2020-03-27 | 中航华东光电有限公司 | Liquid crystal display backlight module |
-
2016
- 2016-08-12 CN CN201620875191.0U patent/CN206193408U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108776402A (en) * | 2018-08-28 | 2018-11-09 | 广州供电局有限公司 | Three-phase backlight electric energy meter and its display module |
| CN108776402B (en) * | 2018-08-28 | 2023-11-21 | 广东电网有限责任公司广州供电局 | Three-phase backlight electric energy meter and display module thereof |
| CN110928052A (en) * | 2019-12-25 | 2020-03-27 | 中航华东光电有限公司 | Liquid crystal display backlight module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170524 |