CN1316297C - Light conducting plate and manufacturing method thereof - Google Patents
Light conducting plate and manufacturing method thereof Download PDFInfo
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- CN1316297C CN1316297C CNB200410037273XA CN200410037273A CN1316297C CN 1316297 C CN1316297 C CN 1316297C CN B200410037273X A CNB200410037273X A CN B200410037273XA CN 200410037273 A CN200410037273 A CN 200410037273A CN 1316297 C CN1316297 C CN 1316297C
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 53
- 238000010023 transfer printing Methods 0.000 claims abstract description 95
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- 238000000034 method Methods 0.000 claims abstract description 39
- 238000009792 diffusion process Methods 0.000 claims description 29
- 230000015572 biosynthetic process Effects 0.000 claims description 15
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Abstract
The present invention relates to a manufacturing method of a light guide board, which comprises the following procedures: firstly, a thin film with a transfer printing material layer is provided; subsequently, a light guide board shaper having a mould cavity is provided; then, the thin film is arranged in the light guide board shaper, and at least part of the transfer printing material layer is positioned in the mould cavity; finally, a light guide board body is formed in the mould cavity. The transfer printing material layer is in transfer printing to the light guide board body. The manufacturing method of a light guide board of the present invention simplifies manufacturing processes, reduces cost and simultaneously enhances the replicability of the manufactured light guide board, the light guide board of the present invention decreases the thickness of the light guide board and reduces the possibility of the light leakage of the light guide board.
Description
Technical field
The present invention relates to a kind of light guide plate (light guide) and manufacture method thereof, particularly relate to light guide plate and the manufacture method thereof of a kind of application transfer technique (transfer printing).
Background technology
At improving rapidly of multimedia society, be indebted to the tremendous progress of semiconductor subassembly or man-machine display device mostly.With regard to display, (Cathode Ray Tube CRT) because of having excellent display quality and economy, monopolizes monitor market in recent years to cathode-ray tube (CRT) always.Yet, operate most environment of terminating machine/display equipment that are on the table for the individual, if viewpoint incision with environmental protection, or predicted with the trend of saving the energy, cathode-ray tube (CRT) is because of still existing a lot of problems in space utilization and the energy resource consumption, and can't effectively provide solution for the demand of light, thin, short, little and low consumpting power.Therefore, have that high image quality, space utilization efficient add, (Liquid Crystal Display LCD) becomes the main flow in market to the LCD of low consumpting power, advantageous characteristic such as radiationless gradually.
In LCD, because liquid crystal panel (Liquid crystal panel) do not have luminous function, thus below liquid crystal panel, must dispose a backlight module (Back light module) so that light source to be provided, and then reach the function of demonstration.In the light emitting source of backlight module, except cathode fluorescent tube (Cold Cathode Fluorescent Lamp, CCFL) outside, light emitting diode is also still arranged, and (Light Emitting Diode LED) also is one of main light emitting source of present backlight module.
Seeing also shown in Figure 1ly, is the assembling synoptic diagram of an existing known backlight module.Existing known backlight module 100, mainly be by: a light guide plate 110, a light source 120, at least one reflector plate 130 and multilayer optical film 140 are constituted.The light that light source 120 is provided is after the light entrance face S1 incident by light guide plate 110, through the reflection of bottom surface S2 and penetrate from light-emitting face S3.Therefore, by the effect of light guide plate 110, the light that light source 120 is provided can be converted to the required area source of liquid crystal panel.
In addition, for increasing the uniformity coefficient of the area source that backlight module 100 provided, generally when making light guide plate 110, be to utilize etching (etching), electroforming technology such as (electromolding), make the mould that has various relief patterns on the bottom surface, on the S2 of its bottom surface, have corresponding relief pattern 112 so that use the light guide plate 110 that this mould carries out ejection formation.Thus, the light that light source 120 is provided just can produce uniform surface light source after the scattering via relief pattern 112.But, the existing known manufacturing method of light conducting board of this kind is the processing procedure complexity not only, and owing to be subjected to influence (the traction of mould stream, etching uniformity coefficient, the cooldown rate that for example relief pattern caused of too many process parameter ... Deng), so light guide plate 110 its replicabilities (reproducibility) that manufacturing is come out are not good, and then cause the product fine rate to promote.
Another kind of existing known manufacturing method of light conducting board then is after light guide plate 110 is finished, and is printed on the S2 of bottom surface light is diffusion patterned with mode of printing again.But this kind mode of printing generally is confined to the manufacturing of large-sized light guide plate, and can't finish simultaneously with light guide plate 110.
In addition, for increasing the brightness of the area source that backlight module 100 provided, generally can on the S2 of the bottom surface of light guide plate 110, attach reflector plate 130.But attaching reflector plate 130 not only increases processing procedure time and cost, has more increased the integral thickness of backlight module 100.And even after the surface beyond the light entrance face S1 of light guide plate 110 and the light-emitting face S3 is all attached reflector plate 130, light guide plate 110 still has the doubt of light leak at the seam crossing of each reflector plate 130.Therefore, for for the LCD of super brightness and the development of ultra-thin size, existing known manufacturing method of light conducting board still has shortcomings to be overcome such as many.
This shows that above-mentioned existing light guide plate and manufacture method thereof obviously still have inconvenience and defective, and demand urgently further being improved in structure, manufacture method and use.In order to solve the problem that light guide plate and manufacture method thereof exist, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.
Because the defective that above-mentioned existing light guide plate and manufacture method thereof exist, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and cooperate the utilization of scientific principle, actively studied innovation, in the hope of the light guide plate and the manufacture method thereof of founding a kind of new structure, can improve general existing light guide plate and manufacture method thereof, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.
Summary of the invention
The objective of the invention is to, overcome the defective that existing manufacturing method of light conducting board exists, and a kind of new manufacturing method of light conducting board is provided, technical matters to be solved is to make it simplify processing procedure and reduce cost, improve the replicability of the light guide plate of manufacturing simultaneously, thereby be suitable for practicality more.
Another object of the present invention is to, a kind of light guide plate is provided, technical matters to be solved is to reduce the thickness of light guide plate, and reduces the possibility of light guide plate light leak, thereby is suitable for practicality more.
The object of the invention to solve the technical problems realizes by the following technical solutions.According to a kind of manufacturing method of light conducting board that the present invention proposes, it may further comprise the steps: a film is provided, a transfer-printing material coat is arranged on this film; One light guide plate make-up machine is provided, and this light guide plate make-up machine has a die cavity; Dispose this film in this light guide plate make-up machine, and make to this transfer-printing material coat of small part and be positioned at this die cavity; And moulding one light conducting plate body is in this die cavity, and this transfer-printing material coat be transfer printing on this light conducting plate body, and make this transfer-printing material coat and this light guide plate one-body molded.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid manufacturing method of light conducting board, wherein said transfer-printing material coat are the diffusion patterned layers of a light.
Aforesaid manufacturing method of light conducting board, the formation of wherein said transfer-printing material coat may further comprise the steps: form a reflection layer on this film; And form the diffusion patterned layer of a light on this reflection layer.
Aforesaid manufacturing method of light conducting board, wherein said light conducting plate body has a light-emitting face, a bottom surface, at least one light entrance face and most sides, this light entrance face and those sides are adjacent to respectively between this bottom surface and this light-emitting face, and the diffusion patterned layer of this light be transfer printing on this bottom surface, and this reflection layer is that transfer printing is on this bottom surface.
Aforesaid manufacturing method of light conducting board, wherein said reflection layer more transfer printing on those sides.
Aforesaid manufacturing method of light conducting board wherein disposes the method for this film in this light guide plate make-up machine and comprises and use a tape mechanism, makes with this film of scrolling to this transfer-printing material coat of small part to be positioned at this die cavity.
Aforesaid manufacturing method of light conducting board, wherein said transfer-printing material coat have most pattern blocks, and behind this film of scrolling those pattern blocks one of them be to be positioned at this die cavity.
The object of the invention to solve the technical problems also adopts following technical scheme to realize.According to a kind of light guide plate that the present invention proposes, it comprises: a light conducting plate body have a light-emitting face, a bottom surface, at least one light entrance face and most sides, and this light entrance face and those sides is adjacent to respectively between this bottom surface and this light-emitting face; And a transfer-printing material coat, being configured at least on this bottom surface, this transfer-printing material coat and this light conducting plate body are one-body molded.。
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid light guide plate, wherein said transfer-printing material coat and this light conducting plate body are one-body molded.
Aforesaid light guide plate, wherein said transfer-printing material coat are the diffusion patterned layers of a light.
Aforesaid light guide plate, wherein said transfer-printing material coat comprises: the diffusion patterned layer of a light is configured on this bottom surface; And a reflection layer, be configured at least on this bottom surface, and cover the diffusion patterned layer of this light.
Aforesaid light guide plate, wherein said reflection layer more is configured on those sides.
The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:
The present invention proposes a kind of manufacturing method of light conducting board, and it comprises following each step: a film at first is provided, a transfer-printing material coat is arranged on this film.One light guide plate make-up machine then is provided, this light guide plate make-up machine has a die cavity, disposes film afterwards in the light guide plate make-up machine, and makes to the small part transfer-printing material coat and be positioned at die cavity, and moulding one light conducting plate body is in die cavity at last, and transfer-printing material coat is that transfer printing is on light conducting plate body simultaneously.
In the present embodiment, transfer-printing material coat for example is the diffusion patterned layer of a light.Perhaps, the formation step of transfer-printing material coat for example comprises formation one reflection layer on film, then forms the diffusion patterned layer of a light on reflection layer.
Light conducting plate body for example has a light-emitting face, a bottom surface, at least one light entrance face and a plurality of side.Light entrance face and side abut against respectively between bottom surface and the light-emitting face.The diffusion patterned layer of light for example transfer printing on the bottom surface, and reflection layer for example transfer printing on the bottom surface.Perhaps, reflection layer for example more transfer printing on the side.
In addition, the configuration method of film in the light guide plate make-up machine for example is to use a tape mechanism, makes with the scrolling film to the small part transfer-printing material coat to be positioned at die cavity.Transfer-printing material coat for example has a plurality of pattern blocks, and one of them pattern block is to be positioned at die cavity behind the scrolling film.
The present invention proposes a kind of light guide plate in addition, mainly is to be made of a light conducting plate body and a transfer-printing material coat.Light conducting plate body has a light-emitting face, a bottom surface, at least one light entrance face and a plurality of side, and light entrance face and side are adjacent to respectively between bottom surface and the light-emitting face.Transfer-printing material coat is configured on the bottom surface at least.
In the present embodiment, transfer-printing material coat and light conducting plate body for example are one-body molded.Transfer-printing material coat for example is the diffusion patterned layer of a light.Perhaps, transfer-printing material coat is made of a diffusion patterned layer of a light and a reflection layer.The diffusion patterned layer of light for example is configured on the bottom surface.Reflection layer for example is configured on the bottom surface at least, and covers the diffusion patterned layer of light.In addition, reflection layer for example more is configured on the side.
In sum, in light guide plate of the present invention and manufacture method thereof, be that the film with a transfer-printing material coat is provided earlier, again with transfer-printing material coat in the light guide plate moulding transfer printing on light guide plate.Therefore, not only significantly simplify the processing procedure and the cost of light guide plate, also can avoid causing because of reflector plate in the prior art increase of the integral thickness of light guide plate.Simultaneously, the light guide plate that manufacturing is come out according to the present invention can have high replicability, has more increased processing procedure speed and transmit film in the winding mode.
Via as can be known above-mentioned, the invention relates to a kind of manufacturing method of light conducting board, it may further comprise the steps: a film at first is provided, one transfer-printing material coat is arranged on this film, one light guide plate make-up machine then is provided, and this light guide plate make-up machine has a die cavity, disposes film afterwards in the light guide plate make-up machine, and make to the small part transfer-printing material coat and be positioned at die cavity, and last moulding one light conducting plate body is in die cavity.Above-mentioned transfer-printing material coat is that transfer printing is on light conducting plate body.
By technique scheme, light guide plate of the present invention and manufacture method thereof have following advantage at least:
Manufacturing method of light conducting board of the present invention has been simplified processing procedure and has been reduced cost, improves the replicability of the light guide plate of manufacturing simultaneously; Light guide plate of the present invention has reduced the thickness of light guide plate, and has reduced the possibility of light guide plate light leak.
In sum, the light guide plate of special construction of the present invention and manufacture method thereof, it has above-mentioned many advantages and practical value, and like product and, not seeing in the manufacture method has similar structural design and method to publish or use and really genus innovation, no matter it is at product structure, bigger improvement is all arranged on manufacture method or the function, have large improvement technically, and produced handy and practical effect, and more existing light guide plate and manufacture method thereof have the multinomial effect of enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a novelty, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of instructions, below with preferred embodiment of the present invention and conjunction with figs. describe in detail as after.
Description of drawings
Fig. 1 is the assembling synoptic diagram of an existing known backlight module.
Fig. 2 is the manufacturing flow chart of the light guide plate of a preferred embodiment of the present invention.
Fig. 3 A and Fig. 3 B are the synoptic diagram of two kinds of coil type films used in the present invention.
Fig. 4 is the diagrammatic cross-section of light guide plate of the present invention when moulding.
Fig. 5 is the schematic perspective view of light guide plate of the present invention.
Fig. 6 is the diagrammatic cross-section of the light guide plate of Fig. 5.
100: backlight module 110: light guide plate
112: relief pattern 120: light source
130: reflector plate 140: optical thin film
S1: light entrance face S2: bottom surface
S3: light-emitting face 200: film
210a, 210b: transfer-printing material coat 212: reflection layer
214: the diffusion patterned layer 250 of light: light guide plate make-up machine
260: die cavity 280: light conducting plate body
290: tape mechanism 300: light guide plate
B: pattern block S4: light-emitting face
S5: bottom surface S6: light entrance face
S7: side S10, S20, S30, S40: step
Embodiment
Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to light guide plate and its embodiment of manufacture method, structure, manufacture method, step, feature and the effect thereof that foundation the present invention proposes, describe in detail as after.
Seeing also shown in Figure 2ly, be the manufacturing flow chart of the light guide plate of a preferred embodiment of the present invention, and Fig. 3 A and Fig. 3 B is depicted as the synoptic diagram of two kinds of coil type films used in the present invention.
See also shown in Fig. 2 and Fig. 3 A, manufacturing method of light conducting board of the present invention is that a film 200 is provided earlier, and a transfer-printing material coat 210a (step S10) is arranged on the film 200.Film 200 for example is the coil type film, its material for example be polyester (polyester, PET).
See also shown in Fig. 3 A and Fig. 3 B, the transfer-printing material coat 210a on the film 200 can have a plurality of pattern block B (as Fig. 3 A), and perhaps the transfer-printing material coat 210b on the film 200 also can be continuous band-shaped distribution (as Fig. 3 B).To be that example is described with transfer-printing material coat 210a in follow-up explanation with a plurality of pattern block B.
It is described to see also Fig. 3 A, and the method that transfer-printing material coat 210a is formed on the film 200 for example is printing.The formation step of transfer-printing material coat 210a for example comprises that formation one reflection layer 212 is on film 200 earlier.Then form the diffusion patterned layer 214 of a light on reflection layer 212.Wherein, the pattern of the diffusion patterned layer 214 of light for example is regular site, irregular site, or other can make light produce the pattern of best diffusion effect through design optimization.The material of the diffusion patterned layer 214 of light for example is hot transfer ink.The material of reflection layer 212 for example is the high light reflectivity material that is suitable for transfer printing.
Certainly, the formation step of transfer-printing material coat 210a also can only comprise formation reflection layer 212, or only comprises the diffusion patterned layer 214 of formation light, looks closely the demand of product design.
See also shown in Figure 4ly, be the diagrammatic cross-section of light guide plate of the present invention when the moulding.See also Fig. 2 and shown in Figure 4, a light guide plate make-up machine 250 (step S20) is provided.Light guide plate make-up machine 250 for example is a Jet forming machine.Light guide plate make-up machine 250 has a die cavity 260.The film 200 that will be formed with transfer-printing material coat 210a (being illustrated among Fig. 3 A) afterwards is configured in the light guide plate make-up machine 250 (step S30), and makes the pattern block B of transfer-printing material coat 210a be positioned at die cavity 260.At last the light guide plate material is injected die cavity 260, with ejection formation one light conducting plate body 280 (step S40).In the ejection formation process of light conducting plate body 280, transfer-printing material coat 210a can leave film 200 and transfer printing on light conducting plate body 280, and make transfer-printing material coat 210a and light guide plate one-body molded.。
In addition, film 200 for example is to use a tape mechanism 290 and is disposed in the light guide plate make-up machine 250, and scrolling film 200 is positioned in the die cavity 260 with a pattern block B with transfer-printing material coat 210a by tape mechanism 290.Back in light conducting plate body of every ejection formation 280 with regard to scrolling film 200, so that the next pattern block B of transfer-printing material coat 210a is positioned in the die cavity 260.If use the transfer-printing material coat 210b shown in Fig. 3 B, then tape mechanism 290 is scrolling films 200 so that the untapped part of transfer-printing material coat 210b is positioned in the die cavity 260.
Certainly, film 200 is not limited to the coil type film, also is not limited to use tape mechanism 290 to carry, and can one by one film 200 be sent into die cavity 260 by various connecting gears.Perhaps, design a plurality of die cavitys 260 in light guide plate make-up machine 250, once carry out the ejection formation of a plurality of light conducting plate body 280.
See also shown in Figure 5ly, be the schematic perspective view of light guide plate of the present invention, and Figure 6 shows that the diagrammatic cross-section of the light guide plate of Fig. 5.See also Fig. 5 and shown in Figure 6, light guide plate 300 of the present invention is made of light conducting plate body 280 and transfer-printing material coat 210a.The outward appearance of light conducting plate body 280 for example is wedge shape, plate shaped or other form.In the present embodiment, be to be example, but be not in order to limitation the present invention with plate shaped light guide plate.
Light conducting plate body 280 has a light-emitting face S4, a bottom surface S5, two light entrance face S6 and two side S7.Light entrance face S4 and side S7 are adjacent to respectively between bottom surface S5 and the light-emitting face S4.Transfer-printing material coat 210a transfer printing at least is configured on the S5 of bottom surface.Because transfer-printing material coat 210a is that transfer printing is on the S5 of bottom surface when light conducting plate body 280 moulding, so transfer-printing material coat 210a and light conducting plate body 280 can be formed in one.Wherein, the diffusion patterned layer of light 214 for example transfer printing on the S5 of bottom surface, and reflection layer 214 for example at least transfer printing at bottom surface S5.Certainly, but reflection layer 214 more transfer printing on the S7 of side.In other words, reflection layer 214 for example transfer printing on light conducting plate body 280 each surface except light-emitting face S4 and light entrance face S6.Thus, just can avoid the leakage of light and obtain best light utilization efficiency.Certainly, reflection layer 214 also only transfer printing on the S5 of bottom surface.
In the present embodiment, transfer-printing material coat 210a is made of diffusion patterned layer 212 of light and reflection layer 214.Certainly, transfer-printing material coat 210a also can only be the diffusion patterned layer 212 of light or only be reflection layer 214.
In sum, in light guide plate of the present invention and manufacture method thereof, be earlier a transfer-printing material coat to be printed on the film, again with transfer-printing material coat in the light guide plate ejection formation transfer printing on light guide plate.Therefore, can avoid in the prior art, make required height skill of mould and complicated processing procedure.And, owing to the simplification of process parameter, more can significantly improve the replicability of light guide plate, to obtain stable product performance.In addition, because reflection layer can be one-body molded on light conducting plate body, have therefore saved and additionally in the prior art attached reflector plate required cost and man-hour, and reduced the integral thickness of light guide plate.Simultaneously, one-body molded reflection layer on light conducting plate body, the more obvious light leak situation of having improved light guide plate, and then improve brightness of backlight module.In addition, the application of coil type film has also increased processing procedure speed, and then improves the output of light guide plate and reduce cost.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (11)
1, a kind of manufacturing method of light conducting board is characterized in that it may further comprise the steps:
One film is provided, a transfer-printing material coat is arranged on this film;
One light guide plate make-up machine is provided, and this light guide plate make-up machine has a die cavity;
Dispose this film in this light guide plate make-up machine, and make to this transfer-printing material coat of small part and be positioned at this die cavity; And
Moulding one light conducting plate body in this die cavity, and this transfer-printing material coat be transfer printing on this light conducting plate body, and make this transfer-printing material coat and this light guide plate one-body molded.
2, manufacturing method of light conducting board according to claim 1 is characterized in that wherein said transfer-printing material coat is the diffusion patterned layer of a light.
3, manufacturing method of light conducting board according to claim 1 is characterized in that the formation of wherein said transfer-printing material coat may further comprise the steps:
Form a reflection layer on this film; And
Form the diffusion patterned layer of a light on this reflection layer.
4, manufacturing method of light conducting board according to claim 3, it is characterized in that wherein said light conducting plate body has a light-emitting face, a bottom surface, at least one light entrance face and most sides, this light entrance face and those sides are adjacent to respectively between this bottom surface and this light-emitting face, and the diffusion patterned layer of this light be transfer printing on this bottom surface, and this reflection layer is that transfer printing is on this bottom surface.
5, manufacturing method of light conducting board according to claim 4, it is characterized in that wherein said reflection layer more transfer printing on those sides.
6, manufacturing method of light conducting board according to claim 1 is characterized in that wherein disposing the method for this film in this light guide plate make-up machine and comprises and use a tape mechanism, makes with this film of scrolling to this transfer-printing material coat of small part to be positioned at this die cavity.
7, manufacturing method of light conducting board according to claim 6 is characterized in that wherein said transfer-printing material coat has most pattern blocks, and behind this film of scrolling those pattern blocks one of them be to be positioned at this die cavity.
8, a kind of light guide plate is characterized in that it comprises:
One light conducting plate body have a light-emitting face, a bottom surface, at least one light entrance face and most sides, and this light entrance face and those sides is adjacent to respectively between this bottom surface and this light-emitting face; And
One transfer-printing material coat is configured at least on this bottom surface, and this transfer-printing material coat and this light conducting plate body are one-body molded.
9, light guide plate according to claim 8 is characterized in that wherein said transfer-printing material coat is the diffusion patterned layer of a light.
10, light guide plate according to claim 8 is characterized in that wherein said transfer-printing material coat comprises:
The diffusion patterned layer of one light is configured on this bottom surface; And
One reflection layer is configured at least on this bottom surface, and covers the diffusion patterned layer of this light.
11, light guide plate according to claim 10 is characterized in that wherein said reflection layer more is configured on those sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410037273XA CN1316297C (en) | 2004-04-30 | 2004-04-30 | Light conducting plate and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200410037273XA CN1316297C (en) | 2004-04-30 | 2004-04-30 | Light conducting plate and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1570730A CN1570730A (en) | 2005-01-26 |
| CN1316297C true CN1316297C (en) | 2007-05-16 |
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| CNB200410037273XA Expired - Lifetime CN1316297C (en) | 2004-04-30 | 2004-04-30 | Light conducting plate and manufacturing method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| FR2974639B1 (en) * | 2011-04-30 | 2016-12-09 | Johnson Controls Automotive Electronics Sas | DISPLAY DEVICE AND METHOD OF MANUFACTURING |
| TWI485452B (en) * | 2012-10-31 | 2015-05-21 | Compal Electronics Inc | Composite light guide plate manufacturing method |
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| CN1379270A (en) * | 2001-04-05 | 2002-11-13 | 住友化学工业株式会社 | Light conducting plate |
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| JPH04355429A (en) * | 1991-05-31 | 1992-12-09 | Nissha Printing Co Ltd | Surface light emission device |
| JPH0627325A (en) * | 1992-07-07 | 1994-02-04 | Sekisui Chem Co Ltd | Surface light source device |
| JPH11224521A (en) * | 1998-02-09 | 1999-08-17 | Omron Corp | Surface light source device |
| CN1323697A (en) * | 2000-02-10 | 2001-11-28 | 日本写真印刷株式会社 | Side transfer printing device for light-guiding plate, and method for mfg. light-guiding plate with slide reflecting layer |
| CN1321896A (en) * | 2000-04-26 | 2001-11-14 | 夏普株式会社 | Optical film, its mfg. method and device |
| CN1321909A (en) * | 2000-04-28 | 2001-11-14 | 住友化学工业株式会社 | Method for mfg. light plate |
| CN1459032A (en) * | 2001-03-30 | 2003-11-26 | 日本制纸株式会社 | Light scattering layer forming transfer film and method of forming light scattering layer using it and light scattering film and light scattering/reflecting plate |
| CN1379270A (en) * | 2001-04-05 | 2002-11-13 | 住友化学工业株式会社 | Light conducting plate |
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|---|---|
| CN1570730A (en) | 2005-01-26 |
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