CN106090729A - Backlight module and include its display device - Google Patents
Backlight module and include its display device Download PDFInfo
- Publication number
- CN106090729A CN106090729A CN201610459937.4A CN201610459937A CN106090729A CN 106090729 A CN106090729 A CN 106090729A CN 201610459937 A CN201610459937 A CN 201610459937A CN 106090729 A CN106090729 A CN 106090729A
- Authority
- CN
- China
- Prior art keywords
- backlight module
- connecting portion
- diffusion part
- light source
- diffusion sheet
- 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.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
Abstract
The present invention includes light guide plate, light source module, diffusion sheet, prismatic lens and shading rubber belt about a kind of backlight module and the display module including it, backlight module.Light guide plate has incidence surface and exiting surface, and incidence surface is adjacent with exiting surface；Light source module is arranged at the side of the incidence surface of light guide plate；Diffusion sheet, is arranged on the exiting surface of light guide plate, and diffusion sheet has the first diffusion part, the second diffusion part and connecting portion, and connecting portion is in order to connect the first diffusion part and the second diffusion part；Prismatic lens is arranged on diffusion sheet, and the first diffusion part and connecting portion are between light source module and prismatic lens；On shading rubber belt overlap joint prismatic lens and light source module；Wherein, connecting portion has a plurality of otch that otch bearing of trend is first direction, and first direction is parallel to the bearing of trend of incidence surface.The backlight module of the present invention arranges the otch in first direction at the connecting portion of diffusion sheet, even if diffusion sheet end is adhesively secured, also can freely discharge stress, to improve the phenomenon of fold.
Description
Technical field
The present invention relates to a kind of backlight module and include its display device, particularly relating to the backlight of a kind of low diaphragm fold
Module and include its display device.
Background technology
In prior art, in the wedge surface of wedge type light guide plate, reflect produced Lampyridea for improving light
(hotspot) phenomenon, it usually needs diffusion sheet is extended or increases shading element and cover.
Fig. 1 is the schematic diagram of a kind of embodiment of backlight module in prior art, and backlight module 100 includes light guide plate
110, light source module 120, diffusion sheet 130, prismatic lens 140 and shading rubber belt 150, light source module 120 also includes flexible PCB
121, for improving above-mentioned Lampyridea phenomenon, diffusion sheet 130 is extended to flexible PCB 121 and shading by backlight module 100
Between adhesive tape 150, so, the part that light reflects in the wedge surface of wedge type light guide plate can be weakened by diffusion sheet 130.
But, because the end of diffusion sheet 130 has part and fixed, so, when carrying out hot and humid experiment, diffusion sheet 130 meeting
The phenomenon of fold occurs.
Fig. 2 is the schematic diagram of the another embodiment of backlight module in prior art, and backlight module 200 includes light guide plate
210, light source module 220, diffusion sheet 230, prismatic lens 240 and shading rubber belt 250, light source module 220 also includes flexible PCB
221, for improving above-mentioned Lampyridea phenomenon, backlight module 200 will increase stickiness between diffusion sheet 230 and shading rubber belt 250
Support member 234, mat has stickiness support member 234 to fix end and the shading rubber belt 250 of diffusion sheet 230, so, stickiness support member
The part that light reflects in the wedge surface of wedge type light guide plate can be weakened by 234.But, because the end of diffusion sheet 230
Portion has part and is fixed, and so, when carrying out hot and humid experiment, diffusion sheet 230 there will be the phenomenon of fold.
Summary of the invention
For improving the phenomenon of above-mentioned diaphragm fold, the present invention provides a kind of backlight module.
Above-mentioned backlight module includes:
Light guide plate, this light guide plate has incidence surface and exiting surface, and this incidence surface is adjacent with this exiting surface；
Light source module, is arranged at this incidence surface side of this light guide plate；
Diffusion sheet, is arranged on this exiting surface of this light guide plate, this diffusion sheet have the first diffusion part, the second diffusion part and
Connecting portion, this connecting portion is in order to connect this first diffusion part and this second diffusion part；
Prismatic lens, this prismatic lens is arranged on this diffusion sheet, and this first diffusion part and this connecting portion are in this light source
Between module and this prismatic lens；And
Shading rubber belt, this shading rubber belt overlaps on this prismatic lens and this light source module；
Wherein, this connecting portion has a plurality of otch, and the otch bearing of trend of these a plurality of otch is first direction, and this is years old
One bearing of trend being oriented parallel to this incidence surface.
As optional technical scheme, this light source module includes circuit board and is electrically arranged at the light on this circuit board
Source, wherein, this circuit board is arranged between this shading rubber belt and this light source.
As optional technical scheme, this first diffusion part is overlapped on this circuit board.
As optional technical scheme, this backlight module also includes stickiness support member, this stickiness support member be arranged at this
Between one diffusion part and this shading rubber belt, and this stickiness support member does not covers this plurality of otch.
As optional technical scheme, the material of this stickiness support member is polyethylene terephthalate.
As optional technical scheme, this connecting portion also has a plurality of cross structure, and these a plurality of cross structures are in order to connect
This first diffusion part and this second diffusion part.
As optional technical scheme, each cross structure is that this connecting portion exists in the length of this first direction less than W/30, W
The length of this first direction.
As optional technical scheme, the number of these a plurality of cross structures is less than three.
As optional technical scheme, the number of these a plurality of cross structures is three, and these a plurality of cross structures position respectively
Two end regions and zone line in this connecting portion.
The present invention also provides for a kind of display device, and this display device includes display floater and above-mentioned backlight module, this back of the body
Light module provides backlight for this display floater.
Compared to prior art, the backlight module of the present invention arranges the otch in first direction at the connecting portion of diffusion sheet,
Even if when the end of diffusion sheet is adhesively secured, also can freely discharge diffusion sheet expand with heat and contract with cold produce stress, to improve pleat
The phenomenon of wrinkle.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of embodiment of backlight module in prior art；
Fig. 2 is the schematic diagram of the another embodiment of backlight module in prior art；
Fig. 3 is the schematic diagram of the first embodiment of the backlight module of the present invention；
Fig. 4 is the schematic diagram of diffusion sheet in Fig. 3；
Fig. 5 is the schematic diagram of the second embodiment of the backlight module of the present invention；
Fig. 6 is the schematic diagram of diffusion sheet in Fig. 5.
Detailed description of the invention
Fig. 3 is the schematic diagram of the first embodiment of the backlight module of the present invention, and Fig. 4 is the schematic diagram of diffusion sheet in Fig. 3,
Refer to Fig. 3, Fig. 4.Backlight module 300 includes light guide plate 310, light source module 320, diffusion sheet 330, prismatic lens 340 and shading
Adhesive tape 350.It is adjacent that light guide plate 310 has incidence surface 311 and exiting surface 312, incidence surface 311 and exiting surface 312, and light guide plate
Incidence surface one end of 310 is taper structure.Light source module 320 is arranged at incidence surface 311 side of light guide plate 310, to send light
Line enters light guide plate 310 from incidence surface 311.Diffusion sheet 330 is arranged on the exiting surface 312 of light guide plate 310, diffusion sheet 330 points
Being the first diffusion part the 331, second diffusion part 332 and connecting portion 333 (in Fig. 4 shown in dotted portion), connecting portion 333 is in order to connect
First diffusion part 331 and the second diffusion part 332.Prismatic lens 340 is arranged on diffusion sheet 330, as it is shown on figure 3, the first diffusion part
331 and connecting portion 333 between light source module 320 and prismatic lens 340.Shading rubber belt 350 is overlapped in light source module 320 and rib
Eyeglass 340.
Wherein, as shown in Figure 4, diffusion sheet 330 has a plurality of otch 3331 in the region of connecting portion 333, a plurality of cuts
The otch bearing of trend of mouth 3331 is first direction, and first direction is parallel to the bearing of trend of incidence surface 311.So, diffusion sheet
330 stress produced because expanding with heat and contract with cold can discharge from a plurality of otch 3331.
Connecting portion 333 also has a plurality of cross structure 3332, and a plurality of cross structures 3332 are in order to connect the first diffusion part 331
With the second diffusion part 332.In the present embodiment, a plurality of cross structures 3332 are sequentially arranged at intervals with a plurality of otch 3331,
Certainly, in other modes, between two cross structures 3332, also can have two otch 3331, such as, above-mentioned two otch
3331 is arranged in parallel.
For reaching the effect of preferable Stress Release, in the present embodiment, each cross structure 3332 is in a first direction
Length less than W/30, W be connecting portion 333 length in a first direction；The number of a plurality of cross structures 3332 is three, and multiple
Several cross structures 3332 lay respectively at two end regions and the zone line (as shown in Figure 4) of connecting portion 333.Certainly, real at other
Executing in mode, the number of a plurality of cross structures 3332 might be less that three.
In the present embodiment, light source module 320 includes circuit board 321 and is electrically arranged at the light source on this circuit board
322, wherein, circuit board 321 is arranged between shading rubber belt 350 and light source 322.For weakening the taper structure from light guide plate 310
There is Lampyridea phenomenon in place, is overlapped on circuit board 321 by the first diffusion part 331 of diffusion sheet 330.So, due to a plurality of
The existence of otch 3331, even if the first diffusion part 331 may be adhesively secured with shading rubber belt 350, diffusion sheet 330 is because of flatulence of heat type
Shrinkage and the stress that produced also can be released from a plurality of otch 3331, without there is the phenomenon of diffusion sheet 330 fold.
Certainly, in other embodiments, it is possible to use other mode to weaken and occur from the wedge surface of light guide plate 310
Lampyridea phenomenon.Such as, Fig. 5 is the schematic diagram of the second embodiment of the backlight module of the present invention, and Fig. 6 is diffusion sheet in Fig. 5
Schematic diagram, refer to Fig. 5, Fig. 6.Backlight module 400 includes light guide plate 410, light source module 420, diffusion sheet 430, prismatic lens
440 and shading rubber belt 450.It is adjacent that light guide plate 410 has incidence surface 411 and exiting surface 412, incidence surface 411 and exiting surface 412
Connect.Light source module 420 is arranged at incidence surface 411 side of light guide plate 410, enters light guide plate to emit beam from incidence surface 411
410.Diffusion sheet 430 is arranged on the exiting surface 412 of light guide plate 410, and diffusion sheet 430 is divided into the first diffusion part 431, second to spread
Portion 432 and connecting portion 433 (in Fig. 6 shown in dotted portion), connecting portion 433 is in order to connect the first diffusion part 431 and the second diffusion
Portion 432.Prismatic lens 440 is arranged on diffusion sheet 430, as it is shown in figure 5, the first diffusion part 431 and connecting portion 433 are positioned at light source die
Between group 420 and prismatic lens 440.Shading rubber belt 450 is overlapped in light source module 420 and prismatic lens 440.Wherein, as shown in Figure 6,
Diffusion sheet 430 has a plurality of otch 4331 and a plurality of cross structure 4332, a plurality of otch 4331 in the region of connecting portion 433
Otch bearing of trend be parallel to the bearing of trend of incidence surface 411.
Unlike backlight module 300, backlight module 400 also includes that stickiness support member 434, stickiness support member 434 set
It is placed between the first diffusion part 431 and shading rubber belt 450, and stickiness support member 434 does not covers a plurality of otch 4331, so,
Due to the existence of a plurality of otch 4331, even if the first diffusion part 431 may pass through stickiness support member with shading rubber belt 450
434 are adhesively secured, and the stress that diffusion sheet 430 has produced because expanding with heat and contract with cold also can be released from a plurality of otch 4331, and
Do not have the phenomenon of diffusion sheet 430 fold.
In the present embodiment, the material of stickiness support member 434 is polyethylene terephthalate.
In the present embodiment, stickiness support member 434 can be one-body molded with diffusion sheet 430.
The present invention also provides for a kind of display device, and display device includes display floater and above-mentioned backlight module, backlight mould
Group provides backlight for display floater.
In sum, the backlight module of the present invention arranges the otch in first direction at the connecting portion of diffusion sheet, even if working as
When the end of diffusion sheet is adhesively secured, also can freely discharge diffusion sheet expand with heat and contract with cold produce stress, to improve diffusion sheet pleat
The phenomenon of wrinkle.
Certainly, the present invention also can have other various embodiments, in the case of without departing substantially from present invention spirit and essence thereof, ripe
Know those skilled in the art and can make various corresponding change and deformation according to the present invention, but these change and deformation accordingly
All should belong to the protection domain of appended claims of the invention.
Claims (10)
1. a backlight module, it is characterised in that this backlight module includes:
Light guide plate, this light guide plate has incidence surface and exiting surface, and this incidence surface is adjacent with this exiting surface；
Light source module, is arranged at this incidence surface side of this light guide plate；
Diffusion sheet, is arranged on this exiting surface of this light guide plate, and this diffusion sheet has the first diffusion part, the second diffusion part and connection
Portion, this connecting portion is in order to connect this first diffusion part and this second diffusion part；
Prismatic lens, this prismatic lens is arranged on this diffusion sheet, and this first diffusion part and this connecting portion are in this light source module
And between this prismatic lens；And
Shading rubber belt, this shading rubber belt is overlapped on this prismatic lens and this light source module；
Wherein, this connecting portion has a plurality of otch, and the otch bearing of trend of these a plurality of otch is first direction, this first party
To the bearing of trend being parallel to this incidence surface.
2. backlight module as claimed in claim 1, it is characterised in that this light source module includes circuit board and is electrically arranged at
Light source on this circuit board, wherein, this circuit board is arranged between this shading rubber belt and this light source.
3. backlight module as claimed in claim 2, it is characterised in that this first diffusion part is overlapped on this circuit board.
4. backlight module as claimed in claim 1, it is characterised in that this backlight module also includes stickiness support member, this stickiness
Support member is arranged between this first diffusion part and this shading rubber belt, and this stickiness support member does not covers this plurality of otch.
5. backlight module as claimed in claim 4, it is characterised in that the material of this stickiness support member is poly terephthalic acid second
Diol ester.
6. backlight module as claimed in claim 1, it is characterised in that this connecting portion also has a plurality of cross structure, this plural number
Individual cross structure is in order to connect this first diffusion part and this second diffusion part.
7. backlight module as claimed in claim 6, it is characterised in that each cross structure is less than W/ in the length of this first direction
30, W is this connecting portion length at this first direction.
8. backlight module as claimed in claim 6, it is characterised in that the number of these a plurality of cross structures is less than three.
9. backlight module as claimed in claim 6, it is characterised in that the number of these a plurality of cross structures is three, and this is multiple
Several cross structures lay respectively at two end regions and the zone line of this connecting portion.
10. a display device, it is characterised in that this display device includes described in display floater and any one of claim 1-9
Backlight module, this backlight module be this display floater provide backlight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459937.4A CN106090729A (en) | 2016-06-23 | 2016-06-23 | Backlight module and include its display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610459937.4A CN106090729A (en) | 2016-06-23 | 2016-06-23 | Backlight module and include its display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106090729A true CN106090729A (en) | 2016-11-09 |
Family
ID=57252088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610459937.4A Pending CN106090729A (en) | 2016-06-23 | 2016-06-23 | Backlight module and include its display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106090729A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707616A (en) * | 2016-12-23 | 2017-05-24 | 上海创功通讯技术有限公司 | Backlight module and display device |
| CN113391483A (en) * | 2021-05-28 | 2021-09-14 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN115542611A (en) * | 2022-11-25 | 2022-12-30 | 惠科股份有限公司 | Backlight module and display device |
-
2016
- 2016-06-23 CN CN201610459937.4A patent/CN106090729A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106707616A (en) * | 2016-12-23 | 2017-05-24 | 上海创功通讯技术有限公司 | Backlight module and display device |
| CN113391483A (en) * | 2021-05-28 | 2021-09-14 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN113391483B (en) * | 2021-05-28 | 2022-09-13 | 厦门天马微电子有限公司 | Backlight module and display device |
| CN115542611A (en) * | 2022-11-25 | 2022-12-30 | 惠科股份有限公司 | Backlight module and display device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20161109 |