CN102418902A - Reflector plate and backlight module utilizing same - Google Patents
Reflector plate and backlight module utilizing same Download PDFInfo
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- CN102418902A CN102418902A CN2010102967853A CN201010296785A CN102418902A CN 102418902 A CN102418902 A CN 102418902A CN 2010102967853 A CN2010102967853 A CN 2010102967853A CN 201010296785 A CN201010296785 A CN 201010296785A CN 102418902 A CN102418902 A CN 102418902A
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- reflector plate
- layer
- backlight module
- reflector
- plastic material
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Abstract
The invention discloses a reflector plate and a backlight module utilizing the same. The reflector plate is suitable for the backlight module and comprises a reflection layer and a reinforced layer, wherein the reflection layer comprises a plastic material and at least one kind of reflection medium which is doped into the plastic material; the reinforced layer is arranged below the reflection layer and contains short fiber material; and the backlight module comprises a light source, a light guide plate, at least one optical diaphragm and the reflector plate, wherein the reflector plate is arranged below the light guide plate and can improve the reflection capacity so as to increase the projection light quantity of the backlight module.
Description
Technical field
The present invention relates to optical display, more detailed a kind of reflector plate and the backlight module that uses this reflector plate of being meant.
Background technology
Recently the volume of optical display develops slimming day by day, and each dealer is there's no one who doesn't or isn't with this important references index as technological innovation, more in view of the above as the marketing demand.
The main composition of optical display comprises two parts, is respectively display floater and backlight module.When many families were devoted to the structure slimming, wherein a reflector plate that is used to increase backlight module projection light quantity also often was one of target that is enhanced.
Known reflector plate is to process with polyester film, and is arranged on the LGP below of backlight module, is used for the light beam that scatters and carry on the back from LGP towards display floater is reflected into LGP again, through this projection light quantity with the increase backlight module.Only, when the thickness of reflector plate is thin more, not only in assembling process, receive the improper effect of external force to cause losing easily, more will reduce its reflecting effect.Though there is the dealer to add metallic film with the reinforcing reflex ability in polyester film surface, because of the increase of technology is unfavorable for the lifting of efficient, and its cost of manufacture is more than 5 times of general reflector plate.In addition, along with the oversized of display floater, aforementioned disappearance will be more remarkable.
Secondly, this known reflector plate is easyly accelerated the generation of qualitative change and is undermined reflection performance after accepting illumination for a long time because of being heated.Especially mostly the reflector plate of state such as present commercially available Japan and Korea S is the PET foaming structure; Because of its radiating efficiency difference is prone to cause heat energy to focus mostly in the LED place and brings high temperature; This high temperataure phenomena will influence the material of LED; Cause the former LED that should throw white light to be transformed into the projection of inclined to one side gold-tinted gradually, so will undermine the optical appearance effect of panel.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of reflector plate, has the lifting albedo, and on-deformable advantage.
Edge is to reach above-mentioned purpose, and reflector plate provided by the present invention is applicable to a backlight module, and this reflector plate includes a reflector layer and a strengthening layer; Wherein, Reflector layer includes plastic material, and is doped at least a reflective medium in this plastic material, and purpose is to increase light reflectivity; Strengthening layer is positioned at the reflector layer below and includes staple fiber material, and purpose is to increase the intensity and the rigidity of reflector plate.
According to above-mentioned design, the present invention more is provided with a heat conduction layer in the strengthening layer below, in order to the heat energy that reflector plate bore is conducted outward.
Secondary objective of the present invention is to provide a kind of backlight module that increases the projection light quantity; This backlight module comprises the top that contiguous this light source of a light source, a LGP, at least one blooming piece are arranged at this LGP; And this reflector plate is arranged at the LGP below; And reflector plate has a reflector layer and a strengthening layer, contiguous this LGP of this reflector layer.
Description of drawings
Fig. 1 is the three-dimensional exploded view of the present invention's one preferred embodiment;
Fig. 2 is the reflector plate cutaway view of the above-mentioned preferred embodiment of the present invention;
Fig. 3 is the reflector plate cutaway view of another preferred embodiment of the present invention;
The reflector plate and the glue frame of a preferred embodiment link sketch map to Fig. 4 again for the present invention;
Fig. 5 is the 5-5 direction cutaway view of Fig. 4.
[main element symbol description]
100 backlight modules
10 reflector plates
12 reflector layer 12a reflective mediums, 14 strengthening layers
The 14a staple fiber material
20 glue frames
30 metal back frames
40 LGPs
50 blooming pieces
60 light emitting diodes
70 reflector plates
72 reflector layers, 74 strengthening layers, 76 heat conduction layers
The 76a heat-conducting medium
The specific embodiment
For being illustrated more clearly in the present invention, lift preferred embodiment now and cooperate diagram to specify as after.
Fig. 1 discloses the backlight module 100 with reflector plate 10 of the present invention, this backlight module 100 include in addition a glue frame 20, a metal back frame 30, a LGP 40, a plurality of blooming piece 50 with a plurality of be example but with light emitting diode 60 not as the light source of limitting.Wherein, glue frame 20 is embedded at the inboard of metal back frame 30, has protection and is contained in reflector plate 10, LGP 40 and those blooming pieces 50 in the glue frame 20 in regular turn; Light emitting diode 60 is located at a side of LGP 40, after the light beam of its generation gets into LGP 40, has most of light beam to throw toward the direction of blooming piece 50, and segment beam is then toward this reflector plate 10 directions projection.
Fig. 2 further discloses the structure of above-mentioned reflector plate 10, includes a reflector layer 12 and a strengthening layer 14.Wherein, Reflector layer 12 is to be base material with plastic material (Thermoplastic), and the reflective medium 12a that mixes at least a again forms, aforementioned plastic material such as polyethylene terephthalate (polyethylene terephthalate; PET), polypropylene (Polypropylene; PP), polycarbonate resin (Polycarbonate, PC), polystyrene (Polystyrene, PS) or acrylonitrile-butadiene-phenylethylene co-polymer (Acrylonitrile-Butadene-Styrene; ABS), but not as limit; Reflective medium 12a is good to be selected from ag material or titanium dioxide then, and likewise, the material of reflective medium 12a does not exceed with above-mentioned.As for this strengthening layer 14, it is positioned at the below of reflector layer 12 and includes staple fiber material 14a, has stable reflector layer 12 structures avoiding because of temperature distortion, and improves the tension deformability of reflector plate 10.
Because the reflector layer 12 of reflector plate 10 is to be in close proximity to LGP 40; Therefore when light gets into this reflector layer 12 and meets with those reflective mediums 12a; With producing multiple refraction effect, promote albedo according to this and reach the purpose that increases backlight module 100 projection light quantities.Secondly, because of reflective medium 12a directly mixes in these reflector plate 10 manufacturing process in the plastic material that constitutes this reflector layer 12, with general reflector plate surface again the coating metal film compare, structure then of the present invention has the effect of simplifying technology.Moreover reflector layer 12 bottom surfaces of reflector plate 10 of the present invention are master's strengthening layer 14 because of being provided with this with staple fiber material 14a, and are yielding with not.
Please join shown in Figure 3 in addition again; Be another preferred embodiment of reflector plate of the present invention, with above-mentioned different be: the reflector plate 70 of present embodiment not only has reflector layer 72 and strengthening layer 74, more below strengthening layer 74, is provided with a heat conduction layer 76; This heat conduction layer 76 is that the plastic material of example is a base material with polyethylene terephthalate (PET) or polypropylene (PP) also; Be doped with heat-conducting medium 76a again, said heat-conducting medium material 76a is an example with metal dust or ceramic powders, but not as limit.
Because of the heat conduction layer 76 of reflector plate 70 after the assembling is to paste to be butted on the metal back frame 30, so thermal energy conduction to the metal back frame 30 that can effectively the light that gets into this reflector plate 70 be followed causes the situation of qualitative change with reduction reflector plate 70 because of being influenced by heat for a long time.
Fig. 4 and Fig. 5 are a preferred embodiment more of the present invention; Its etc. announcement glue frame that the plastic material of material properties and this reflector plate 10 (or reflector plate 70) is close 20 see through connecting technology and connect to one with this reflector plate 10 (or reflector plate 70); This structural form can guarantee that backlight module possesses reflective structure, and backlight module possibly take place because of the disappearance that careless mistake causes omitting reflecting piece in installing process as none.Aforementioned connecting technology comprises hot pressing, gummed or bonding etc.
The above is merely the preferable possible embodiments of the present invention, uses specification of the present invention and claim institute equivalent structure and preparation method variation for it such as, ought to be included in the present invention's the claim.
Claims (13)
1. a reflector plate is applicable to a backlight module, and this reflector plate includes a reflector layer and a strengthening layer, it is characterized in that, this reflector layer includes plastic material, and is doped at least a reflective medium in this plastic material; Strengthening layer is positioned at the reflector layer below and includes staple fiber material.
2. reflector plate as claimed in claim 1 is characterized in that the plastic material of this reflector layer includes polyethylene terephthalate or polypropylene.
3. reflector plate as claimed in claim 1 is characterized in that this reflective medium is selected from ag material or titanium dioxide.
4. reflector plate as claimed in claim 1 is characterized in that, also includes a heat conduction layer and is positioned at this strengthening layer below, includes heat-conducting medium in this heat conduction layer.
5. reflector plate as claimed in claim 4 is characterized in that, this heat-conducting medium is metal dust or ceramic powders.
6. backlight module is characterized in that comprising:
One light source is in order to produce light beam;
One LGP is close to this light source, is used for the light beam of this light source of transmission;
At least one blooming piece is arranged at the top of this LGP; And
One reflector plate is arranged at this LGP below, and this reflector plate includes a reflector layer and a strengthening layer, contiguous this LGP of this reflector layer.
7. backlight module as claimed in claim 6 is characterized in that the reflector layer of this reflector plate includes plastic material, and is doped at least a reflective medium in this plastic material.
8. backlight module as claimed in claim 7 is characterized in that the plastic material of this reflector layer includes polyethylene terephthalate or polypropylene.
9. backlight module as claimed in claim 7 is characterized in that this reflective medium is selected from ag material or titanium dioxide.
10. backlight module as claimed in claim 6 is characterized in that this strengthening layer includes staple fiber material.
11. backlight module as claimed in claim 6 is characterized in that, this reflector plate also includes a heat conduction layer and is positioned at this strengthening layer below, includes heat-conducting medium in this heat conduction layer.
12. backlight module as claimed in claim 11 is characterized in that, this heat-conducting medium is metal dust or ceramic powders.
13. backlight module as claimed in claim 6 is characterized in that, also includes a glue frame, this glue frame and this reflector plate connect to one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102967853A CN102418902A (en) | 2010-09-27 | 2010-09-27 | Reflector plate and backlight module utilizing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102967853A CN102418902A (en) | 2010-09-27 | 2010-09-27 | Reflector plate and backlight module utilizing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102418902A true CN102418902A (en) | 2012-04-18 |
Family
ID=45943446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102967853A Pending CN102418902A (en) | 2010-09-27 | 2010-09-27 | Reflector plate and backlight module utilizing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102418902A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192766A (en) * | 1995-08-30 | 1998-09-09 | 美国3M公司 | Back light reflection sheet for liquid cyrstal |
| US6268961B1 (en) * | 1999-09-20 | 2001-07-31 | 3M Innovative Properties Company | Optical films having at least one particle-containing layer |
| CN1890323A (en) * | 2003-12-09 | 2007-01-03 | 三井化学株式会社 | Resin composition for reflector, and reflector |
| CN1955818A (en) * | 2005-10-24 | 2007-05-02 | Lg电子株式会社 | Thermal layer, backlight unit and display device including the same |
-
2010
- 2010-09-27 CN CN2010102967853A patent/CN102418902A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1192766A (en) * | 1995-08-30 | 1998-09-09 | 美国3M公司 | Back light reflection sheet for liquid cyrstal |
| US6268961B1 (en) * | 1999-09-20 | 2001-07-31 | 3M Innovative Properties Company | Optical films having at least one particle-containing layer |
| CN1890323A (en) * | 2003-12-09 | 2007-01-03 | 三井化学株式会社 | Resin composition for reflector, and reflector |
| CN1955818A (en) * | 2005-10-24 | 2007-05-02 | Lg电子株式会社 | Thermal layer, backlight unit and display device including the same |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120418 |
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| WD01 | Invention patent application deemed withdrawn after publication |