CN1591046A - Method for mfg. reflecting film of light conducting plate - Google Patents
Method for mfg. reflecting film of light conducting plate Download PDFInfo
- Publication number
- CN1591046A CN1591046A CNA031403816A CN03140381A CN1591046A CN 1591046 A CN1591046 A CN 1591046A CN A031403816 A CNA031403816 A CN A031403816A CN 03140381 A CN03140381 A CN 03140381A CN 1591046 A CN1591046 A CN 1591046A
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- Prior art keywords
- guide plate
- light guide
- light
- reflectance coating
- manufacture method
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Abstract
The method for preparing light-conducting plate reflection film includes the following steps: providing a light-conducting plate, the light-exiting surface and light-incoming surfaces of said light-conducting plate are respectively covered with protective film; preparing high reflection medium solution; soaking said light-conducting plate into the high reflection medium solution; taking out said light-conducting plate; and removing the protective film.
Description
[technical field]
The invention relates to a kind of light guide plate reflectance coating manufacture method.
[background technology]
Because the liquid crystal itself in the panel of LCD is not luminous, therefore,, a planar light source device is provided must for the LCD panel for reaching display effect, as backlight, its function is to provide the planar light that briliancy is abundant and be evenly distributed to panel of LCD.
The planar light source device of prior art mainly is made up of light source, light guide plate, reflecting plate, diffuser plate and prism plate etc.Wherein, this light source can be arranged on light guide plate one side or two opposite sides and with light emission to this light guide plate.The effect of this light guide plate is the transmission direction of guiding light, makes light by the even outgoing of the exiting surface of light guide plate.In order to increase the bright dipping briliancy of light guide plate, reduce optical loss, in the side and the bottom surface of light guide plate reflection unit is set usually.When light transmission to the side and the bottom surface reflect, some light spills light guide plate simultaneously, and this part light is imported into light guide plate again after the reflection unit reflection, final exiting surface outgoing by light guide plate, improve light utilization efficiency, guarantee the bright dipping briliancy of planar light source device.
Seeing also Fig. 1, is that a kind of planar light source device of prior art comprises a light guide plate 10 and is arranged on the light source 11 of these light guide plate 10 1 sides.This light guide plate 10 comprise an incidence surface 103, one with this incidence surface 103 bottom surface adjacent 104, an exiting surface 101 relative and a plurality of sides 102 adjacent with this exiting surface 101 with this bottom surface 104.Light that this light source 11 sends imports these light guide plate 10 through this incidence surface 103, light through bottom surface 104 and side 102 reflections after, penetrate by exiting surface 101.But, light is in bottom surface 104 and side 102 reflections, the light that has a part from this bottom surface 104 and side 102 spill this light guide plate 10, therefore need reflection diaphragm 106 be set in the bottom surface 104 of this light guide plate 10, will reflect again by the light that bottom surface 104 spills and import this light guide plate 10.Simultaneously, in order to reduce light from the spilling of incidence surface 103, the part 1032 of this incidence surface 103 except that light inlet 1031 also need add reflection unit 105, will be reflected back into by the light that incidence surface 103 spills in this light guide plate 10.
See also Fig. 2, in order to reduce the loss of light 102 reflex times in the side, reflection housing 21 is set around this leaded light, this reflection housing 21 is made by high reflecting material, and the light that will be spilt by side 102 is this light guide plate 10 of reflected back again.Because there are the processing procedure tolerance in these light guide plate 10 ejection formations and this reflection housing 21 machinings, so have space 22 between this reflection housing 21 and this light guide plate 10, understand some light and spill, reduce the utilization factor of light, influence the bright dipping briliancy of light guide plate 10 from this space 22.
The prior art needs to increase the processing procedure that reflection diaphragm and reflection housing are set again behind the light guide plate ejection formation, make processing procedure complexity, cost raise, and because there are the processing procedure tolerance in light guide plate ejection formation and reflection housing machining, make and have the space between light guide plate and the reflection housing, the light that can't eliminate bottom surface of light guide plate and side fully spills, cause the luminous energy loss, reduce the bright dipping briliancy.
[summary of the invention]
In order to overcome light guide plate reflectance coating manufacture method complexity in the prior art, cost is higher and gained light guide plate bright dipping briliancy is low problem, the invention provides a kind of simple, cost is low and improve the light guide plate reflectance coating manufacture method of light guide plate bright dipping briliancy.
The technical scheme that technical solution problem of the present invention is adopted provides a kind of light guide plate reflectance coating manufacture method processing procedure, and it may further comprise the steps: a light guide plate is provided; Exiting surface and incidence surface in this light guide plate paste diaphragm; Prepare high reflecting medium solution; This light guide plate is soaked in this high reflecting medium solution; This light guide plate taking-up is dried; Take off diaphragm.
Compared to existing technology, the invention has the beneficial effects as follows: because this reflectance coating is that high reflecting medium solution is directly fixed in the light guide plate surface, and do not need to increase again be provided with reflection diaphragm and the reflection housing processing procedure, simplify processing procedure, save cost, and avoid producing the gap because of the processing procedure tolerance of light guide plate ejection formation and reflection housing machining, make reflectance coating contact fully, reduce light in the bottom surface and the ullage during offside reflection, improve the bright dipping briliancy of light guide plate with light guide plate.
[description of drawings]
Fig. 1 is the schematic perspective view of prior art planar light source device.
Fig. 2 is prior art light guide plate and the synoptic diagram that cooperates that reflects housing.
Fig. 3 is a reflectance coating manufacture method process flow diagram of the present invention.
Fig. 4 is the stereographic map of the used light guide plate of light guide plate reflectance coating manufacture method of the present invention, and wherein exiting surface and incidence surface paste a diaphragm.
Fig. 5 is that the light guide plate that light guide plate of the present invention reflects molded journey is soaked in high reflecting medium solution synoptic diagram.
[embodiment]
See also Fig. 3 to Fig. 5, the present invention's light guide plate reflectance coating manufacture method may further comprise the steps:
(a) provide a light guide plate (step 801).This light guide plate 30 comprise an incidence surface 303, one with incidence surface 303 bottom surface adjacent 304, an exiting surface 301 relative and the side 302 adjacent with this exiting surface 301 with this bottom surface 304.This light guide plate 30 is plate shaped, also can be wedge type.This light guide plate 30 is an ejection formation.
(b) exiting surface and the incidence surface in this light guide plate pastes diaphragm (step 802).The exiting surface 301 of this light guide plate 30 and the light inlet 3032 of incidence surface 303 are sticked diaphragm 32, and this diaphragm 32 can be no tear mark adhesive tape or plastic sheet, also can be that other has airtight materials with function and makes.
(c) prepare high reflecting medium solution (step 803).The mixed liquor that this high reflecting medium solution 41 is silver nitrate and ammoniacal liquor also can be the high reflecting medium solution that gold waits other metallic compound.
(d) this light guide plate is immersed in this high reflecting medium solution (step 804).For fixing this light guide plate 30, can a kick mechanism 50 be set at the incidence surface 303 of this light guide plate 30 and the intersection of bottom surface 304, this projection mechanism 50 is one ejection formations with this light guide plate 30, hitch or mechanical holding structure is seized this projection mechanism 50 on both sides by the arms by fine rule, slowly this light guide plate 30 is immersed fully in this high reflecting medium solution 41, make the side 302 and the bottom surface 304 of this light guide plate 30 contact fully, and soak a period of time with this high reflecting medium solution 41.
(e) (step 805) dried in this light guide plate taking-up.This light guide plate 30 is slowly pulled out this high reflecting medium solution 41, makes this high reflecting medium solution 41 flow down, place a period of time along the surface of light guide plate, make these high reflecting medium solution 41 full solidification, dry.
(f) take off diaphragm (step 806).After treating these light guide plate 30 lip-deep high reflecting medium solution 41 full solidification, drying; take off the exiting surface 301 that is attached to this light guide plate 30 and the diaphragm 32 of incidence surface 303 with dyestripping paper; then do not covered by high reflecting medium solution 41 by this light guide plate surface of these diaphragm 32 protections; form required reflectance coating; do not formed reflectance coating by the exiting surface 301 of this light guide plate 30 of these diaphragm 32 protections and 3032 of the light inlets of incidence surface 303, can not influence the light beam incident and the ejaculation of light guide plate.In order to remove the residue of these light guide plate 30 each surperficial pollutants and diaphragm, can further increase by a cleaning step, with alcohol this light guide plate 30 is cleaned, dry through the dust-free paper wiping, finish the making of this light guide plate reflectance coating.
Reflectance coating is to be directly fixed in the light guide plate surface in the light guide plate reflectance coating manufacture method of the present invention, and do not need to increase again be provided with reflection diaphragm and the reflection housing processing procedure, simplify processing procedure, save cost, reflectance coating by this processing procedure gained light guide plate contacts fully with light guide plate, reduce light in the bottom surface and the ullage during offside reflection, improve the bright dipping briliancy of light guide plate.
Claims (8)
1. light guide plate reflectance coating manufacture method, it may further comprise the steps: a light guide plate is provided, and this light guide plate comprises an exiting surface and an incidence surface; Exiting surface and incidence surface in this light guide plate paste diaphragm; Prepare high reflecting medium solution; This light guide plate is immersed in this high reflecting medium solution; This light guide plate taking-up is dried; Take off diaphragm.
2. light guide plate reflectance coating manufacture method according to claim 1 is characterized in that: this light guide plate is an ejection formation.
3. light guide plate reflectance coating manufacture method according to claim 1, it is characterized in that: this diaphragm is an adhesive tape.
4. light guide plate reflectance coating manufacture method according to claim 1 is characterized in that: this high reflecting medium solution is the high reflecting metal compound solution.
5. light guide plate reflectance coating manufacture method according to claim 4 is characterized in that: the solution of this high reflecting metal compound is the mixed liquor of silver nitrate and ammoniacal liquor.
6. light guide plate reflectance coating manufacture method according to claim 1 is characterized in that: take out light guide plate and take off between the diaphragm, light guide plate is placed a period of time, make the height on light guide plate surface reflect the solution full solidification, dry.
7. light guide plate reflectance coating manufacture method according to claim 1 is characterized in that: after taking off diaphragm, further comprise a cleaning step.
8. light guide plate reflectance coating manufacture method according to claim 7 is characterized in that: this cleaning step is with alcoholic solution each surface of light guide plate to be cleaned.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031403816A CN1591046A (en) | 2003-08-30 | 2003-08-30 | Method for mfg. reflecting film of light conducting plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA031403816A CN1591046A (en) | 2003-08-30 | 2003-08-30 | Method for mfg. reflecting film of light conducting plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1591046A true CN1591046A (en) | 2005-03-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA031403816A Pending CN1591046A (en) | 2003-08-30 | 2003-08-30 | Method for mfg. reflecting film of light conducting plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1591046A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842776A (en) * | 2016-06-01 | 2016-08-10 | 翰博高新材料(合肥)股份有限公司 | Manufacture method of composite light guide plate |
-
2003
- 2003-08-30 CN CNA031403816A patent/CN1591046A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105842776A (en) * | 2016-06-01 | 2016-08-10 | 翰博高新材料(合肥)股份有限公司 | Manufacture method of composite light guide plate |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |