CN100376949C - Light plate and manufacturing method thereof - Google Patents
Light plate and manufacturing method thereof Download PDFInfo
- Publication number
- CN100376949C CN100376949C CNB031469213A CN03146921A CN100376949C CN 100376949 C CN100376949 C CN 100376949C CN B031469213 A CNB031469213 A CN B031469213A CN 03146921 A CN03146921 A CN 03146921A CN 100376949 C CN100376949 C CN 100376949C
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- CN
- China
- Prior art keywords
- guide plate
- light guide
- sheet metal
- light
- transparent base
- 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.)
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Abstract
The present invention discloses a light guiding board which comprises a transparent basis material and a metal sheet, wherein the transparent basis material comprises at least one light incident surface, a bottom surface and a light emergent surface; the light incident surface is used for receiving an incident light beam which is emitted from a light source, and the bottom surface is used for scattering and reflecting the incident light beam; the light emergent surface can lead out the incident light beam which is scattered and reflected by the bottom surface; one surface of the metal sheet is provided with tiny holes, the bottom surface of the transparent basis material is provided with lattice points which are matched with the tiny holes, and the bottom surface of the transparent basis material is tightly combined with the surface of the metal sheet, which is provided with the tiny holes. The present invention also exposes a method for manufacturing the light guiding board.
Description
[technical field]
The present invention relates to a kind of light guide plate and manufacture method thereof, especially a kind of light guide plate and manufacture method thereof that is used for liquid crystal indicator.
[background technology]
LCD is a kind of non-self-emission display apparatus, it shows mainly passing through or the obstructed realization of coming by control light beam that external light source sends, therefore need corresponding backlight module or front optical module, this backlight or front optical module can be with the beam direction display panel that external light source sent, realize Presentation Function, and light guide plate is the important component part of backlight module.
Seeing also Fig. 1, is a kind of light guide plate 10 of prior art, and this light guide plate 10 is made by transparent plastic substrate 103, and these light guide plate 10 exiting surfaces 1033 are evenly distributed with prism structure 101, and bottom surface 1032 is distributed with site 102.Contiguous these light guide plate 10 bottom surfaces 1,032 one sides are provided with reflecting plate 11, and this reflecting plate 11 is flat boards of being made by highly reflective material.The light guide plate 10 of this structure is separated with reflecting plate 11, and the part light that is penetrated by light source (figure does not show) is mapped to reflecting plate 11 behind incidence surface 1031, bottom surface 1032, again through reflecting plate 11 reflected back bottom surfaces 1032, is derived by exiting surface 1033 at last.Because some light is wanted twice through bottom surface 1032, the utilization factor of light is not high; In addition owing between light guide plate and the reflecting plate space is arranged, thus light guide plate 10 and reflecting plate 11 both to close thickness also bigger.
[summary of the invention]
In order to overcome the defective that the prior art light guide plate is big and light utilization efficiency is low, the invention provides the light guide plate that a kind of thickness is little and light utilization efficiency is higher.
The present invention also provides a kind of method of making above-mentioned light guide plate.
The technical scheme of technical solution problem of the present invention is: a kind of light guide plate is provided, it comprises a transparent base and a sheet metal, this transparent base comprises at least one incidence surface, a bottom surface and an exiting surface relative with the bottom surface that links to each other with incidence surface, the one side of this sheet metal evenly is provided with a plurality of micropores, this transparent base part material is packed in these a plurality of micropores, and this transparent base bottom surface and this sheet metal have the surface of micropore to combine closely.
Method for manufacturing light guide plate provided by the invention comprises the steps: to provide a surface that the sheet metal with a plurality of micropores evenly is set; Transparent material is pressed together on the surface that this genus sheet has micropore, transparent base part material is packed in these a plurality of micropores, thereby makes this transparent base bottom surface and this sheet metal have the surface of micropore to combine closely.
Compare prior art, the invention has the beneficial effects as follows: because light guide plate of the present invention self has sheet metal, this sheet metal has the effect of reflecting plate, and light guide plate and this sheet metal combine closely, so thickness is less; In addition, because of light need not pass bottom surface of light guide plate twice, light loss is reduced, thereby improved light utilization efficiency.
[description of drawings]
Fig. 1 is that a kind of prior art light guide plate reaches the reflecting plate stereographic map that cooperates with it.
Fig. 2 is the stereographic map of light guide plate first embodiment of the present invention.
Fig. 3 is the cut-open view of light guide plate shown in Figure 2.
Fig. 4 is the cut-open view of light guide plate second embodiment of the present invention.
Fig. 5 is the process flow diagram of method for manufacturing light guide plate of the present invention.
Fig. 6 is the stereographic map of the used sheet metal of method for manufacturing light guide plate of the present invention.
Fig. 7 is the cut-open view that transparent plastic substrate is pressed together on back on the sheet metal in the method for manufacturing light guide plate of the present invention.
[embodiment]
Seeing also Fig. 2 and Fig. 3, is respectively the stereographic map and the sectional view of light guide plate first embodiment of the present invention.This light guide plate 2 comprises that a transparent plastic substrate 21 and a upper surface are coated with the sheet metal 20 of reflectance coating 22.These sheet metal 20 1 surfaces evenly are provided with the cylindrical micropore 201 of a plurality of identical sizes, and this transparent plastic substrate 21 comprises bottom surface 212 that at least one incidence surface 211, intersects vertically with incidence surface 211 and an exiting surface 213 relative with bottom surface 212.These transparent plastic substrate 21 part materials are packed in the micropore 201 on sheet metal 20 surfaces, make this bottom surface 212 and the surface that this sheet metal 20 has micropore 201 combine closely.
The sheet metal 20 that is coated with reflectance coating 22 in the said structure has the reflecting plate function, and itself and transparent plastic substrate 21 combine closely, thereby light guide plate 2 thickness are less.In addition,, light loss is reduced, promptly improved light utilization efficiency because light need not pass the bottom surface 212 of light guide plate 2 for twice.The cylindrical micropore 201 on sheet metal 20 surfaces makes the light that imports from incidence surface 211 212 evenly reflex to exiting surface 213 from the bottom surface, reaches the purpose of homogenizing bright dipping briliancy.
See also Fig. 4, be the cut-open view of light guide plate second embodiment of the present invention.This light guide plate 3 comprises that a transparent plastic substrate 31 and a upper surface are coated with the sheet metal 30 of reflectance coating 33.These sheet metal 30 1 surfaces evenly are provided with the identical semisphere micropore 301 of a plurality of sizes, and this transparent plastic substrate 31 comprises bottom surface 312 that at least one incidence surface 311, one and incidence surface 311 intersect vertically and an exiting surface 313 relative with bottom surface 123.These transparent plastic substrate 31 part materials are packed in the micropore 301 on sheet metal 30 surfaces, make this bottom surface 312 have the surface of micropore to combine closely with this sheet metal 30.
The sheet metal 30 that is coated with reflectance coating 32 in the said structure has the reflecting plate function, and it and transparent plastic substrate 31 combine closely, thereby light guide plate 3 thickness are little.In addition,, light loss is reduced, promptly improve light utilization efficiency because light need not pass the bottom surface 312 of light guide plate 3 for twice.The cylindrical micropore 301 on sheet metal 30 surfaces makes the light that imports from incidence surface 311 312 evenly reflex to exiting surface 313 from the bottom surface, reaches the purpose of homogenizing bright dipping briliancy.
The set micropore shape in light guide plate sheet metal of the present invention surface also can be conical, and its distribution mode also can be along increasing its size or density gradually away from incidence surface; The bottom surface of this transparent plastic substrate also can tilt to intersect with incidence surface.
Please consulting Fig. 5 together to Fig. 7, is the manufacturing flow chart of light guide plate 2 of the present invention, and it may further comprise the steps:
One sheet metal 20 that has a micropore 201 is provided, and this sheet metal 20 is aluminium flake, and it is (step 510) that is formed by the mould compacting of making according to optical demands, and this micropore 201 be cylindrical, also can be semisphere or is taper shape.
Plate highly reflecting films 22 (step 520) on these sheet metal 20 1 surfaces, these highly reflecting films 22 are silver alloy or aluminium alloy.
With cylinder or dull and stereotyped at this sheet metal 20 the surperficial pressing transparent plastic substrate 21 (step 530) of micropore is arranged, this transparent plastic substrate 21 can be polymethyl methacrylate or the acid of phosphorus base.
Utilize the V-CUT technology to carry out prism and handle (step 540) at these transparent plastic material 12 upper surfaces;
Utilize cutting equipment to cut into light guide plate (step 550) by required size.
Claims (10)
1. light guide plate, it comprises a transparent base and a sheet metal, this transparent base comprises at least one incidence surface, a bottom surface and an exiting surface relative with the bottom surface that links to each other with incidence surface, it is characterized in that: a surface of this sheet metal evenly is provided with a plurality of micropores, this transparent base part material is packed in these a plurality of micropores, and this transparent base bottom surface and this sheet metal have the surface of micropore to combine closely.
2. light guide plate as claimed in claim 1 is characterized in that: this micropore is cylindrical.
3. light guide plate as claimed in claim 1 is characterized in that: this micropore is a semisphere.
4. light guide plate as claimed in claim 1 is characterized in that: this micropore is conical.
5. light guide plate as claimed in claim 1 is characterized in that: this sheet metal is an aluminium flake.
6. light guide plate as claimed in claim 1 is characterized in that: this exiting surface is distributed with a plurality of prism structures.
7. light guide plate as claimed in claim 1 is characterized in that: this sheet metal upper surface is coated with highly reflecting films.
8. light guide plate as claimed in claim 7 is characterized in that: these highly reflecting films have silver alloy or aluminium alloy.
9. method for manufacturing light guide plate, it may further comprise the steps: provide a surface evenly to be provided with the sheet metal of a plurality of micropores; Transparent base is pressed together on the surface that above-mentioned sheet metal has a plurality of micropores, transparent base part material is packed in these a plurality of micropores, thereby makes this transparent base bottom surface and this sheet metal have the surface of micropore to combine closely.
10. method for manufacturing light guide plate as claimed in claim 9 is characterized in that: it further is included in the step that this sheet metal has the surface of a plurality of micropores to plate highly reflecting films and carry out the prism processing at this transparent base upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031469213A CN100376949C (en) | 2003-09-20 | 2003-09-20 | Light plate and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031469213A CN100376949C (en) | 2003-09-20 | 2003-09-20 | Light plate and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598621A CN1598621A (en) | 2005-03-23 |
| CN100376949C true CN100376949C (en) | 2008-03-26 |
Family
ID=34659724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031469213A Expired - Fee Related CN100376949C (en) | 2003-09-20 | 2003-09-20 | Light plate and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100376949C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105527673B (en) * | 2016-01-05 | 2019-08-30 | 京东方光科技有限公司 | Light guide member, backlight module, display device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123431A (en) * | 1997-03-19 | 2000-09-26 | Sanyo Electric Co., Ltd | Backlight apparatus and light guide plate |
| JP2003195266A (en) * | 2001-12-27 | 2003-07-09 | Optrex Corp | Liquid crystal display element |
-
2003
- 2003-09-20 CN CNB031469213A patent/CN100376949C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6123431A (en) * | 1997-03-19 | 2000-09-26 | Sanyo Electric Co., Ltd | Backlight apparatus and light guide plate |
| JP2003195266A (en) * | 2001-12-27 | 2003-07-09 | Optrex Corp | Liquid crystal display element |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1598621A (en) | 2005-03-23 |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080326 Termination date: 20150920 |
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| EXPY | Termination of patent right or utility model |