CN104101934A - Light guide plate and light guide plate die - Google Patents
Light guide plate and light guide plate die Download PDFInfo
- Publication number
- CN104101934A CN104101934A CN201310112551.2A CN201310112551A CN104101934A CN 104101934 A CN104101934 A CN 104101934A CN 201310112551 A CN201310112551 A CN 201310112551A CN 104101934 A CN104101934 A CN 104101934A
- Authority
- CN
- China
- Prior art keywords
- guide plate
- light guide
- die
- light
- site
- 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
Abstract
The invention provides a light guide plate comprising a light emitting surface and a bottom surface opposite to the light emitting surface; the bottom surface is provided with screen dots with a trapezoid cross section; a whole surface of the light emitting surface is a rough atomization surface. The invention also provides a die of the light guide plate.
Description
Technical field
The present invention relates to a kind of light guide plate and light-conducting board mold.
Background technology
Light guide plate of the prior art is generally formed with site on the bottom surface relative with exiting surface, thereby site makes light penetrate from exiting surface for the total reflection that destroys light.But the light sending from site has very strong directive property, thereby cause on the exiting surface of light guide plate, occurring bright dark fringe, affect the grade of light guide plate.
Summary of the invention
In view of this, be necessary to provide a kind of light guide plate and light-conducting board mold of eliminating bright dark fringe.
A kind of light guide plate, comprises exiting surface and the bottom surface relative with this exiting surface.On this bottom surface, be formed with site, the cross sectional shape of this site is trapezoidal, and the whole surface of this exiting surface is coarse atomization surface.
A kind of light-conducting board mold, comprises the first die and the second die, and this first die, this second die are formed for the die cavity of this light guide plate of moulding jointly.On this first die, be coarse atomization surface towards the whole inside surface of this die cavity.On this second die, towards the depression that is formed with net-point shape on the inside surface of this die cavity, the cross sectional shape of this depression is trapezoidal.
With respect to prior art, the exiting surface of light guide plate of the present invention and this light guide plate of leaded light mould mould is set to coarse atomization surface, makes light in exiting surface generation scattering, thereby has eliminated bright dark fringe.
Brief description of the drawings
Fig. 1 is the schematic side view of the light guide plate of an embodiment of the present invention.
Fig. 2 is the structural representation of the light-conducting board mold of another embodiment of the present invention.
Main element symbol description
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, the light guide plate 100 of an embodiment of the present invention, comprises an exiting surface 10, bottom surface 20, the incidence surface 30 that respectively connect exiting surface 10 and bottom surface 20 and a side 40 relative with exiting surface 10.Side 40 is relative with incidence surface 30.This light guide plate 100 is with transparent resin material, for example acrylic manufacture.
This incidence surface 30 arranges towards light source (not shown).The light that light source sends enters this light guide plate 100 via incidence surface 30, and is propagated to the direction of side 40 by the mode of total reflection.On this bottom surface 20, be formed with site 21, in the present embodiment, protrude this relative bottom surface 20, site 21.This site 21 is for destroying the total reflection of the light that propagates into site 21, thereby this part light is penetrated from exiting surface 10.In the present embodiment, the cross sectional shape of this site 21 is trapezoidal, and compared to the site of traditional circular configuration, the site of this trapezoidal shape can be controlled the conduction of light more accurately, thereby increases the briliancy of light guide plate 100.
Because the light penetrating from site 21 has directive property, this part light is interfered in the interior generation of light guide plate 100, thereby cause occurring interference fringe at exiting surface 10.In order to eliminate interference fringe, the whole surface of this exiting surface 10 is set to coarse atomization surface, makes light arrive the rear generation scattering of exiting surface 10, thereby has eliminated interference fringe, make the each several part brightness of exiting surface 10 consistent, promoted the grade of light guide plate 100.
Please refer to Fig. 2, it has disclosed the mould 200 for the manufacture of this light guide plate 100.In the present embodiment, this mould 200 comprises one first die 60, the second die 70.This first die 60, the common die cavity 80 for this light guide plate 100 of moulding that forms of the second die 70.
This second die 70 is towards the depression 73 that is formed with net-point shape on the inside surface 71 of die cavity 80, and the depression 73 of this net-point shape is for moulding site 21.In the present embodiment, this depression 73 is processed to form with diamond cutter, and the cross sectional shape of this depression 73 is trapezoidal.
This first die 60 is coarse atomization surface towards the whole surface of the inside surface 61 of die cavity 80, in the present embodiment, this atomization surface obtains by the mode of grinding and polishing, in other embodiments, also can obtain this atomization surface by the mode of sandblast.This atomization surface is for the exiting surface 10 of formed light conductive plate 100.
In the present embodiment, this first die 60 is male die core, and this second die 70 is mother module core.In other embodiments, can be also on this first die 60 for mother module core, this second die 70 is male die core.
In the time manufacturing, to the raw material of the interior injection melting of die cavity 80, through cooling curing, die sinking, cut off after the steps such as stub bar, can obtain this light guide plate 100.
In a word; those skilled in the art will be appreciated that; above embodiment is only for the present invention is described; and be not used as limitation of the invention; as long as within connotation scope of the present invention, within the appropriate change that above embodiment is done and variation all drop on the scope of protection of present invention.
Claims (9)
1. a light guide plate, comprises exiting surface and the bottom surface relative with this exiting surface, it is characterized in that: this bottom surface is formed with site, and the cross sectional shape of this site is trapezoidal, and the whole surface of this exiting surface is coarse atomization surface.
2. light guide plate as claimed in claim 1, is characterized in that: this light guide plate also comprises the incidence surface that connects this exiting surface and this bottom surface, and this incidence surface is towards a light source setting.
3. light guide plate as claimed in claim 2, is characterized in that: this light guide plate also comprises this exiting surface of a connection and this bottom surface and the side relative with this incidence surface.
4. light guide plate as claimed in claim 1, is characterized in that: this light guide plate is made with transparent material.
5. light guide plate as claimed in claim 4, is characterized in that: this transparent material is transparent resin.
6. light guide plate as claimed in claim 1, is characterized in that: protrude this site relatively this bottom surface.
7. a light-conducting board mold, comprises the first die and the second die, and this first die coordinates with this second die the die cavity that is jointly formed for this light guide plate of moulding, it is characterized in that: this first die is coarse atomization surface towards the whole inside surface of this die cavity; This second die is towards the depression that is formed with net-point shape on the inside surface of this die cavity, and the cross sectional shape of this depression is trapezoidal.
8. light-conducting board mold as claimed in claim 7, is characterized in that: this depression processes with diamond cutter.
9. light-conducting board mold as claimed in claim 7, is characterized in that: this coarse atomization surface obtains in the mode of grinding and polishing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112551.2A CN104101934A (en) | 2013-04-02 | 2013-04-02 | Light guide plate and light guide plate die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310112551.2A CN104101934A (en) | 2013-04-02 | 2013-04-02 | Light guide plate and light guide plate die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104101934A true CN104101934A (en) | 2014-10-15 |
Family
ID=51670219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310112551.2A Pending CN104101934A (en) | 2013-04-02 | 2013-04-02 | Light guide plate and light guide plate die |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104101934A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345959A (en) * | 2015-08-25 | 2016-02-24 | 靖江市永盛光电科技有限公司 | Processing technology of small circle arc of back light guide plate |
| CN105365117A (en) * | 2015-08-25 | 2016-03-02 | 靖江市永盛光电科技有限公司 | Griffe machining process of light guide plate die core |
| CN108381130A (en) * | 2018-01-16 | 2018-08-10 | 滁州佳宏光电有限公司 | A kind of manufacturing method of mobile phone light guide panel template |
| CN112965160A (en) * | 2021-02-04 | 2021-06-15 | 东莞市元立电子科技有限公司 | Processing technology of light guide plate light-emitting surface mold core and textured surface light guide plate |
-
2013
- 2013-04-02 CN CN201310112551.2A patent/CN104101934A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105345959A (en) * | 2015-08-25 | 2016-02-24 | 靖江市永盛光电科技有限公司 | Processing technology of small circle arc of back light guide plate |
| CN105365117A (en) * | 2015-08-25 | 2016-03-02 | 靖江市永盛光电科技有限公司 | Griffe machining process of light guide plate die core |
| CN108381130A (en) * | 2018-01-16 | 2018-08-10 | 滁州佳宏光电有限公司 | A kind of manufacturing method of mobile phone light guide panel template |
| CN112965160A (en) * | 2021-02-04 | 2021-06-15 | 东莞市元立电子科技有限公司 | Processing technology of light guide plate light-emitting surface mold core and textured surface light guide plate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104101934A (en) | Light guide plate and light guide plate die | |
| US10196010B2 (en) | Molded part, especially a decorative part and/or paneling part for a vehicle interior fashioned as a molded part and a method for producing such a molded part | |
| EP2824387A1 (en) | Light guide element, method for producing the same, and illuminant and motor vehicle lamp with such a light guide element | |
| CN106170733A (en) | Back light unit and the display device including it | |
| US20140146558A1 (en) | Light guide stick and light source assembly having light emitting diode and light guide stick | |
| US20120163033A1 (en) | Backlight Module, Light Guide Device, and Method for Manufacturing Light Guide Plate | |
| US20140106109A1 (en) | Metal ornament and method for manufacturing metal ornament | |
| CN101078798B (en) | Backlight assembly light guide board production method | |
| CN205263433U (en) | Gluey frame of backlight and connection structure of chase | |
| CN101839445B (en) | Section light guide structure of light guide plate in back light module | |
| CN203658610U (en) | Light guide plate and mold for producing light guide plate | |
| CN201072452Y (en) | Mold insert structure of light conducting plate and light conducting plate structure formed by the same | |
| CN101726789A (en) | Method for manufacturing light guide plate with reflection configuration | |
| CN105342048A (en) | Novel luminous helmet and manufacturing method thereof | |
| CN206330032U (en) | A kind of ring-type car light light guide | |
| CN203994441U (en) | A kind of single injection-molded LGP | |
| CN201434339Y (en) | Section light structure of light panel in backlight module | |
| KR102150827B1 (en) | Lens package and molding method thereof | |
| CN205184835U (en) | A cutter for cutting light guide plate | |
| CN104416739A (en) | Light guide plate and manufacturing method thereof | |
| EP2743572A1 (en) | Light guide element with separately produced optically effective surface produced by forming | |
| US20140198524A1 (en) | Light guide plate with v-shaped micro-structures on light output surface | |
| CN104077982A (en) | Display module and display equipment | |
| CN105479637A (en) | Polarizing film optical lens and production mold thereof | |
| CN102189647A (en) | Injection molding mold positioning structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141015 |