CN208922017U - A kind of back light mould group - Google Patents
A kind of back light mould group Download PDFInfo
- Publication number
- CN208922017U CN208922017U CN201821560923.2U CN201821560923U CN208922017U CN 208922017 U CN208922017 U CN 208922017U CN 201821560923 U CN201821560923 U CN 201821560923U CN 208922017 U CN208922017 U CN 208922017U
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- China
- Prior art keywords
- light
- guide plate
- light guide
- isolation film
- mould group
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Abstract
The utility model discloses a kind of back light mould group, it include: FPC, LED, light guide plate, reflectance coating, isolation film and optical compound film piece, the optical compound film piece is prism facets on one side, and the optical compound film piece is set to light guide plate light-emitting surface side, and prism facets are towards the light guide plate；The isolation film is set between the optical compound film piece and light guide plate, and the isolation film is incidence surface close to the one side of the light guide plate, and the one side far from the light guide plate is light-emitting surface, and the incidence surface and light-emitting surface are parallel to each other.The utility model can generate speck to avoid backlight module, can also prevent from scratching light guide plate, while can reduce reflection loss of the low-angle reflected light on isolation film, the transmissivity and utilization efficiency of increasing light.
Description
Technical field
The utility model relates to display module technical field more particularly to a kind of back light mould groups.
Background technique
At present in liquid crystal display industry, back light module unit structure includes usually upper brightening piece, lower brightening piece, diffusion sheet, leads
Tabula rasa, FPC, LED and reflector plate, the light that LED is issued will be with screen sides after the reflection of reflector plate and light guide plate and refraction
It is converted into the light emission vertical with screen direction to parallel incident light to go out, then will by diffusion sheet, lower brightening piece and upper brightening piece
The light that light guide plate projects is converted into the uniform light emission of angular distribution on liquid crystal.
In the prior art, also a useful prism facets replace spreading towards the optical compound film piece of light guide plate one side placement
Piece, lower brightening piece and upper brightening piece, but in use, if the UV glue in the optical compound film piece is softer,
It is readily adsorbed on light guide plate then speck easy to form, is easy to scratch light guide plate again if UV glue is harder.
Therefore, the prior art is defective, needs to improve.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, provide a kind of back light mould group.
The technical solution of the utility model is as follows: the utility model provides a kind of back light mould group, comprising: FPC, LED,
Light guide plate, reflectance coating, isolation film and optical compound film piece, the optical compound film piece is prism facets on one side, and the optics is compound
Diaphragm is set to light guide plate light-emitting surface side, and prism facets are towards the light guide plate；The isolation film is multiple set on the optics
It closing between diaphragm and light guide plate, the isolation film is incidence surface close to the one side of the light guide plate, one far from the light guide plate
Face is light-emitting surface, and the incidence surface and light-emitting surface are parallel to each other.
Further, the isolation film has micro-structure, the end face indention of the micro-structure.
Further, the incidence surface of the isolation film and the light guide plate are in 25 ° -35 °.
Further, the material of the isolation film is PET.
Further, the isolation film with a thickness of 50 microns -110 microns.
Preferably, institute's isolation film with a thickness of 75 microns.
Using the above scheme, the utility model can generate speck to avoid backlight module, can also prevent from scratching light guide plate, together
When can reduce reflection loss of the low-angle reflected light on isolation film, the transmissivity and utilization efficiency of increasing light.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Fig. 2 is the enlarged drawing in Fig. 1 at A.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Fig. 1 and Fig. 2 are please referred to, the utility model provides a kind of back light mould group, comprising: FPC (not indicating), LED are (not
Mark), light guide plate 1, reflectance coating (not indicating), isolation film 2 and optical compound film piece (not indicating), the optical compound film piece one
Face is prism facets, and the optical compound film piece is set to the 1 light-emitting surface side of light guide plate, and prism facets are towards the light guide plate 1；
The isolation film 2 is set between the optical compound film piece and light guide plate 1, one side of the isolation film 2 close to the light guide plate 1
For incidence surface S1, the one side far from the light guide plate 1 is light-emitting surface S2, and the incidence surface S1 and light-emitting surface S2 are parallel to each other, institute
Isolation film 2 is stated with micro-structure, the end face indention of the micro-structure, the thickness of the isolation film 2 is preferably 75 microns.Institute
The material for stating isolation film 2 is PET, and elasticity is preferably and soft, can both be produced to avoid the optical compound film piece and the absorption of light guide plate 1
Raw speck, can also scratch the light guide plate 1 to avoid the optical compound film piece.
Please continue to refer to Fig. 2, in the present embodiment, the incidence surface S1 of the isolation film 2 is in 1 surface of light guide plate
23 ° of angles, the incidence surface for being mapped to the isolation film 2 in the light L of 8 ° of angles with the light guide plate 1 that the light guide plate 1 goes out
It is 31 ° with the incidence surface S1 angle for being in when on S1.The isolation film 2 selects the membrane material with micro-structure, passes through setting
The angle of the incidence surface S1 and light guide plate 1 controls between 25 ° -35 °, the low-angle that the light guide plate 1 can be made to project
It is biggish that the light of (being not more than 10 ° with 1 angulation of light guide plate) by the micro-structure of the isolation film 2 is converted into angle
Incident light, so that the incidence angle that increasing light injects the optical compound film piece improves light so as to reduce light losing
Utilization efficiency.
In conclusion the utility model can generate speck to avoid backlight module, can also prevent from scratching light guide plate, while can
To reduce reflection loss of the low-angle reflected light on isolation film, the transmissivity and utilization efficiency of increasing light.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all practical at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the guarantor of the utility model within novel spirit and principle
Within the scope of shield.
Claims (6)
1. a kind of back light mould group characterized by comprising FPC, LED, light guide plate, reflectance coating, isolation film and optics are compound
Diaphragm, the optical compound film piece is prism facets on one side, and the optical compound film piece is set to light guide plate light-emitting surface side, and
Prism facets are towards the light guide plate；The isolation film is set between the optical compound film piece and light guide plate, and the isolation film leans on
The one side of the nearly light guide plate is incidence surface, and the one side far from the light guide plate is light-emitting surface, the incidence surface and light-emitting surface phase
It is mutually parallel.
2. back light mould group according to claim 1, which is characterized in that the isolation film has micro-structure, described micro-
The end face indention of structure.
3. back light mould group according to claim 2, which is characterized in that the incidence surface of the isolation film and the leaded light
Plate is in 25 ° -35 °.
4. back light mould group according to claim 1, which is characterized in that the material of the isolation film is PET.
5. back light mould group according to claim 1, which is characterized in that the isolation film it is micro- with a thickness of 50 micron -110
Rice.
6. back light mould group according to claim 5, which is characterized in that institute's isolation film with a thickness of 75 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560923.2U CN208922017U (en) | 2018-09-25 | 2018-09-25 | A kind of back light mould group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821560923.2U CN208922017U (en) | 2018-09-25 | 2018-09-25 | A kind of back light mould group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208922017U true CN208922017U (en) | 2019-05-31 |
Family
ID=66706859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821560923.2U Active CN208922017U (en) | 2018-09-25 | 2018-09-25 | A kind of back light mould group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208922017U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487700A (en) * | 2020-05-28 | 2020-08-04 | 马鞍山东毅新材料科技有限公司 | Dynamic backlight L ED optical composite film and preparation method thereof |
-
2018
- 2018-09-25 CN CN201821560923.2U patent/CN208922017U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487700A (en) * | 2020-05-28 | 2020-08-04 | 马鞍山东毅新材料科技有限公司 | Dynamic backlight L ED optical composite film and preparation method thereof |
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