CN1302324C - Light source modulating device for function curve type lens grating - Google Patents
Light source modulating device for function curve type lens grating Download PDFInfo
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- CN1302324C CN1302324C CNB031497683A CN03149768A CN1302324C CN 1302324 C CN1302324 C CN 1302324C CN B031497683 A CNB031497683 A CN B031497683A CN 03149768 A CN03149768 A CN 03149768A CN 1302324 C CN1302324 C CN 1302324C
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Abstract
The present invention discloses a light source modulating device which can be used on a backlight module of a liquid crystal display panel or a light source modulating device used for leading light to be uniformly atomized in general. A microstructure application technology, a design technology for a backlight module, etc. which are different are combined. A function curve type lens grating is processed and formed on a light transmission substrate. Light rays are homogenized by the angle change, interval size change and simulation change of diopter. The functions of a traditional diffusion sheet and a light collecting plate can be integrated. A novel light source modulating device with high penetration, high uniformity and high brightness is formed. The present invention adopts a micro electromechanical process processing technology which can lead the volume production or the manufacture of the present invention to have high practicability and value.
Description
Technical field
The present invention relates to a kind of can be with the modulation of source device of light source uniform atomizing, particularly a kind of in order to replacing the conventional diffusion sheet, with micro electronmechanical, repeatedly technology such as line effect, mold forming are integrated and are reached the new type light source modulating device of high penetration, high evenness and high brightness.
Background technology
The TFT-LCD panel replaces iconoscope (CRT) fast becomes now monitor main flow, and wherein backlight module is one of important spare part in the LCD panel, accounts for LCD panel cost about 10%～20%.In general, the backlight module of LCD comprises parts such as cold-cathode tube, reflecting plate, light guide plate, diffuser plate and light collecting plate, wherein the function of diffuser plate is to provide LCD a uniform surface light source, makes can be tending towards being in harmonious proportion consistent via the shown image brilliance of lcd screen.Existing diffuser plate processing procedure mixes in the photo-hardening type resin nothing more than the particulate that utilizes different refractivity, treat with film spreader and coating machine this resin admixture to be coated on tygon on this dimethyl ester (PET) after the resin fusion is finished, utilize the ultraviolet photoetching machine to expose again and make the film hardened forming, reach atomic kind, addition, particle size or distribution in the change photo-hardening type resin.The diffusion principle of diffuser plate mainly is because the refractive index difference between the particulate of resin in the diffusion layer and filling causes.Fig. 1 is traditional diffuser plate structure, as shown in the figure, this diffuser plate 1 is coated tygon on this dimethyl ester (PET) substrate 13 with a resin admixture 11, and insert particulate 12 and be scattered between this resin admixture 11, can be constantly during through this diffusion layer after the light incident in the different medium of two refractive indexes, pass, thereby generation phenomenons such as refraction, reflection and scattering repeatedly, and then form the effect that optics spreads.But the made diffusion sheet process of this kind method is numerous and diverse, and cost is higher, and light via repeatedly reflect, the result of reflection and scattering certainly will cause luminous energy to consume in a large number, cause problems such as brightness is not enough, be head it off, often need to be provided with a light collecting plate traditionally, to improve the brightness of light source.
Please refer to Fig. 2, it is rib line raster 2 structural drawing of institute of 3M company development and application on the gain sheet, and shown in Figure 3, then is known lenticular sheet 3 structures, this class formation all can make the spotlight effect that sees through its formed lens module itself after the light incident, and light intensity is increased.But geometric figure that it is simple such as ball, cylindrical, triangle etc., can't effectively control optical property and reach the function of diffusion sheet, therefore, the present invention utilizes this principle then, and integrates asymmetric processing notion, uses the processing procedure and the performance of diffuser plate are carried out revolution, it is simple and easy to design a making, can solve the new type light source modulating device of known techniques shortcoming again, it not only can be used on the backlight module of display panels, more can be applicable to all need device with the light source uniform atomizing on.
Summary of the invention
Fundamental purpose of the present invention provides the modulation of source device of a function curve type lenticulation, this device can be with the light source uniform atomizing, be the micro electronmechanical processing procedure processing of utilization, the technology such as line effect, mold forming, backlight module design that change, the function of traditional diffusion sheet and light-collecting piece integrated the new type light source modulating device that forms a high penetration, high evenness and high brightness.
Another purpose of the present invention provides the modulation of source device of a function curve type lenticulation, introduce micro electronmechanical process technology and make the ultraprecise processing curve of this apparatus surface, this cooked mode system can and give simplification with whole diffuser plate processing procedure, and reduces its manufacturing cost.
In order to achieve the above object, the modulation of source device of function curve type lenticulation provided by the invention comprises: at least one body, this body has: one first plane, one second plane, a first surface and one second curved surface.Wherein this first plane has corresponding in twos one first long side and one first short side, and this first long side presents one first function curve figure.This second plane and this first plane are vertically intersected on this first short side, and one second short side with respect to this first short side presents one second function curve figure on this second plane.This first surface and this first Plane intersects are in this first long side, and one second long side with respect to this first long side presents one the 3rd function curve figure on this first surface.This second curved surface is made of this second short side and this second long side, and intersects on this second short side and this second long side with this second plane and first surface respectively.
The present invention has utilized two kinds of technology such as application of integration optical microstructures and backlight module design, utilize angle variation, spacing size, light degree variation in the wrong etc. to simulate the repeatedly line variation that one or more groups lens cause earlier, use the kenel of determining function shaped form lenticulation, utilize micro-electromechanical technology body process technology (Bulkmicromaching) as four of deep electroformed mould technology for making (LIGA makes technology), Laser Processing, ultraprecise and the processing operations of carrying out master mold such as five again, make required lenticulation structure by master mold more at last.
In addition, among the present invention, also can add the structure with alternative functions shaped form lenticulation such as optics diffractive element such as Fu Naier lens (Fresnel Lens), but the thickness of its thinning whole light source modulating device, be more suitable for simplifying whole manufacturing process with micro electronmechanical process technique processing.
Above-mentioned and other purpose of the present invention, feature and advantage are elaborated with instantiation below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is traditional diffusion board structure synoptic diagram;
Fig. 2 is the rib line raster structural representation of institute of 3M company development and application on the gain sheet;
Fig. 3 is known lenticular sheet structural representation;
Fig. 4 utilizes the lens aberration characteristic to make the synoptic diagram of its atomizing with modulation light;
Fig. 5 is the structural representation of the modulation of source device of function curve type lenticulation of the present invention;
Fig. 6 is a preferred embodiment synoptic diagram of the master mold processing mode of function curve type lenticulation of the present invention;
Fig. 7 is another preferred embodiment synoptic diagram of the master mold processing mode of function curve type lenticulation of the present invention;
Fig. 8 turns over manufacturing technology to form the synoptic diagram of tow sides function curve type lens light for the present invention uses a mould two;
Fig. 9 is the synoptic diagram of the phase type grating that constituted with optics diffractive element emulation spherical lens.
Description of reference numerals: 1-conventional diffusion plate; 11-resin admixture; The 12-particulate; The 13-PET substrate; 2-rib line raster; The 3-lenticular sheet; The 4-lens; The 41-arc-shaped curved surface; The 5-body; 51-first plane; 52-second plane; The 53-first surface; 54-second curved surface; 511-first long side; The 512-first short side; 531-second long side; The 522-second short side; 5a-end face sine function lenticulation structure; 511a-first long side; The 512a-first short side; 531a-second long side; The 522a-second short side; 5b-column sine function turnover type lenticulation structure; 511b-first long side; The 512b-first short side; 531b-second long side; The 522b-second short side; 5c-column turnover type lens arrangement; 511c-first long side; The 512c-first short side; 531c-second long side; The 522c-second short side; 5d-rib type turnover type lens arrangement; 511d-first long side; The 512d-first short side; 531d-second long side; The 522d-second short side; The 61-wafer; The 62-photoresistance is roasted into shape firmly; The 63-photoresistance forms spherical shape; The 71-metal mother.
Embodiment
Below by preferred embodiment describe in detail the modulation of source device of shaped form lenticulation of the present invention detailed means, manner of execution, reach effect and other technical characterictic.
Fig. 4 utilizes the lens aberration characteristic to modulate the synoptic diagram that light makes its atomizing, as shown in the figure, after light penetration has the lens 4 of arc-shaped curved surface 41, light evenly can be scattered, to reach the effect of fuzzy atomizing, the superposition that the present invention mainly uses the characteristic of this microstructure to cooperate one or more groups shaped form lenticulation to cause changes the function that intense light source is reached the conventional diffusion sheet with giving homogenising.
Fig. 5 is the structural representation of nonlinear type periodic lenses grating of the present invention, as shown in the figure, the present invention includes at least one body 5, and this body 5 has: one first plane 51, one second plane 52, a first surface 53 and one second curved surface 54.Wherein this first plane 51 has corresponding in twos one first long side 511 and one first short side 512, this first long side 511 presents one first function curve figure, this first function curve figure can be a continuous triangle functional digraph, a waveform functional digraph or a linear function figure in preferred embodiment of the present invention, suchlike variation is that those skilled in the art institute can be changed enforcement according to above-mentioned exposure, will not lose main idea of the present invention place, also do not break away from the spirit and scope of the present invention, so do not add to give unnecessary details at this.This second plane 52 is vertically intersected on this first short side 512 with this first plane 51, and one second short side 522 with respect to this first short side 512 presents one second function curve figure on this second plane 52, this first function curve figure can be a continuous triangle functional digraph in preferred embodiment of the present invention, an one waveform functional digraph or a linear function figure, suchlike variation is that those skilled in the art institute can be changed enforcement according to above-mentioned exposure, will not lose main idea of the present invention place, also do not break away from the spirit and scope of the present invention, so do not add to give unnecessary details at this.This first surface 53 is to intersect at this first long side 511 with this first plane 51, and one second long side 531 with respect to this first long side 511 presents one the 3rd function curve figure on this first surface 53, this first function curve figure can be a continuous triangle functional digraph in preferred embodiment of the present invention, an one waveform functional digraph or a linear function figure, suchlike variation is that those skilled in the art institute can be changed enforcement according to above-mentioned exposure, will not lose main idea of the present invention place, also do not break away from the spirit and scope of the present invention, so do not add to give unnecessary details at this.This second curved surface 54 is made of this second short side 522 and these second long side, 531 limits, and intersects on this second short side 522 and this second long side 531 with this second plane 52 and first surface 53 respectively.Then can constitute a function curve type lenticulation by formed this first surface 53 of this first, second and third function curve figure with this second curved surface 54, it is the place of feature of the present invention.
According to the main body 5 of the above, a preferred embodiment of the present invention can be an end face sine function lenticulation structure 5a, the first function curve figure of wherein being presented in this first long side 511a is a linear function figure, the second function curve figure of being presented in this second short side 522a is a continuous parabolic function figure, and the 3rd function curve figure of being presented in this second long side 531a is a sine function figure.
Another preferred embodiment of the present invention can be a column sine function turnover type lenticulation structure 5b, the first function curve figure of wherein being presented in this first long side 511b is a sine function figure, the second function curve figure of being presented in this second short side 522b is a continuous arc shape function figure, and the 3rd function curve figure of being presented in this second long side 531b is a linear function figure.
Another preferred embodiment of the present invention also can be a column turnover type lens arrangement 5c, the first function curve figure of wherein being presented in this first long side 511c is a polygronal function figure, the second function curve figure of being presented in this second short side 522c is a continuous arc shape function figure, and the 3rd function curve figure of being presented in this second long side 531c is a linear function figure.
In addition, a preferred embodiment of the present invention also can be a rib type turnover type lens arrangement 5d, the first function curve figure of wherein being presented in this first long side 511d is a polygronal function figure, the second function curve figure of being presented in this second short side 522d is a continuous triangle functional digraph, and the 3rd function curve figure of being presented in this second long side 531d is a linear function figure.
The manufacturing process of the modulation of source device of function curve type lenticulation of the present invention be earlier to its angle change, spacing size and light bends degree and changes in addition simulated experiment, after obtaining a preferable layout, utilize micro-electromechanical technology body process technology (Bulk micromaching) as four of deep electroformed mould technology for making (LIGA process technique), Laser Processing, ultraprecise and the quarters of turning over of carrying out master mold such as five, utilize motherboard that the baseplate material of one printing opacity is processed into required structure again.
Fig. 6 is a preferred embodiment synoptic diagram of the master mold processing mode of nonlinear type periodic lenses grating of the present invention, earlier with behind wafer 61 cleanings, the dewatering roast, to revolve the in addition linging of plating machine, to go up photoresistance, inserting soft baking box again carries out roasting in advance, utilize exposure machine that the mask pattern that makes is translated to photoresistance afterwards, be roasted into type 62 firmly after treating unwanted photoresistance removed, put into the boiler tube heating at last, reflux (reflow) action, can reach sphere result 63 as shown in the figure.
Fig. 7 is another preferred embodiment synoptic diagram of the master mold processing mode of nonlinear type periodic lenses grating of the present invention, utilize the ultraprecise processing mode, carry out four or five processing and be used to make the required metal mother 71 of nonlinear type periodic lenses optical grating construction to make one.
Except being used for the backlight module of display panels, the present invention also can be applicable to all need relevant apparatus with the light uniform atomizing on, its maximum is characterised in that: traditional diffusion sheet is because use chemical processing procedure to add a large amount of particles, make except the absorption of base material, the chemical particle of its adding also can absorb considerable luminous energy, and the present invention system is made based on optical principle, except the absorption of base material itself, there is no extra absorbed luminous energy, so the next height of the more general existing diffusion sheet of transmittance.Its another feature is: conventional diffusion sheet system utilizes the principle of light scattering made, the spread angle of its light is uncontrollable to be concentrated in the available scope, thereby cause luminous energy to waste, the scattering angle of atomizing light source can be effectively controlled in design of the present invention, and then with the concentration of energy of light source to available scope, this design that possesses spotlight effect, provide light source to enter in the display panels with preferable incident angle, this function that partly very can replace light collecting plate is to simplify the backlight module component and the design of display panels.
In addition, particular design of the present invention is when actual fabrication, can utilize same master mold base material to a transparent light guide in manufacturing process to carry out double-edged structure processing casting, as shown in Figure 8, be that a so-called mould two turns over manufacturing technology, it uses identical master pattern, cooperate the special broken line structure of the present invention, only need to form at the tow sides of light guide base plate the pattern of symmetry with the one side rotation, it can strengthen the effect of optical modulation, and uses the result of same master mold also can save manufacturing cost, simplification manufacturing course.
Please refer to Fig. 9, it is that system can form the phase place suitable with spherical lens in the formed zigzag indentation of ad-hoc location, in other words with the synoptic diagram of optics diffractive element such as Fu Naier lens (Fresnel Lens) simulation spherical lens, can utilize the phase type grating with equivalence, shown in its figure below.The thickness of the optics diffractive element of method equivalence light path thus can be less than with the made assembly of lenticulation.In brief, implement design of the present invention with the optics diffractive element, except the process technique that forms its structure easily, more can dwindle the thickness of whole light source modulating device, make it have more market applicability and competitive power.
In a word, the above only is preferred embodiment of the present invention, can not limit the scope that the present invention is implemented with this.All equalizations of doing according to claim of the present invention change and modify, and all should still belong to protection scope of the present invention.
Claims (10)
1. the modulation of source device of a function curve type lenticulation, the light that a light source is launched with give uniform atomizing, this device comprises:
At least one body, this body has:
One first plane, it comprises corresponding in twos one first long side and one first short side, this first long side presents one first function curve figure;
One second plane be vertically intersected on this first short side with first plane, and one second short side with respect to this first short side presents one second function curve figure on this second plane;
One first surface, with this first Plane intersects in this first long side, and one second long side with respect to this first long side presents one the 3rd function curve figure on this first surface; And
One second curved surface is made of this second short side and this second long side, and intersects on this second short side and this second long side with this second plane and first surface respectively.
2. the modulation of source device of function curve type lenticulation as claimed in claim 1, wherein this body is that the baseplate material of a leaded light is made.
3. the modulation of source device of function curve type lenticulation as claimed in claim 1, wherein this first function curve figure be continuous triangle functional digraph, wave functional digraph and linear function figure wherein it
4. the modulation of source device of function curve type lenticulation as claimed in claim 1, wherein this second function curve figure be continuous triangle functional digraph, continuous arc shape function figure and continuously the parabolic function figure one of them.
5. the modulation of source device of function curve type lenticulation as claimed in claim 1, wherein the 3rd function curve figure be continuous triangle functional digraph, sine function figure and linear function figure wherein it
6. the modulation of source device of function curve type lenticulation as claimed in claim 1, wherein this second function curve figure is the zigzag pattern through the calculating gained, it can form Fu Naier lens.
7. the modulation of source device of function curve type lenticulation as claimed in claim 1, wherein this first surface and this second curved surface constitute a function curve type lenticulation.
8. the modulation of source device of function curve type lenticulation as claimed in claim 7, wherein this function curve type lenticulation utilizes a master mold to be processed into.
9. the modulation of source device of function curve type lenticulation as claimed in claim 8, wherein this master mold is to utilize micro electronmechanical processing and manufacturing technology processing and fabricating.
10. the modulation of source device of function curve type lenticulation as claimed in claim 8, wherein this master mold is behind same plane rotation fixed angle, can be processed to form identical and the function curve type lenticulation that angle is relative of pattern at the tow sides of light guide base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031497683A CN1302324C (en) | 2003-08-05 | 2003-08-05 | Light source modulating device for function curve type lens grating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031497683A CN1302324C (en) | 2003-08-05 | 2003-08-05 | Light source modulating device for function curve type lens grating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1580902A CN1580902A (en) | 2005-02-16 |
| CN1302324C true CN1302324C (en) | 2007-02-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031497683A Expired - Lifetime CN1302324C (en) | 2003-08-05 | 2003-08-05 | Light source modulating device for function curve type lens grating |
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| CN (1) | CN1302324C (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101112552B1 (en) * | 2005-03-08 | 2012-02-15 | 삼성전자주식회사 | Lens for light emitting diode, light emitting lens, back light assembly and liquid crystal display |
| CN100443987C (en) * | 2005-08-31 | 2008-12-17 | 财团法人工业技术研究院 | Curvilinear optical modulation component and backlight module with same |
| CN101823314A (en) * | 2010-05-28 | 2010-09-08 | 昆山兆震电子有限公司 | Embedding and ejecting molding method for panel with bamboo surface combined with metal structure |
| CN101844391A (en) * | 2010-05-28 | 2010-09-29 | 昆山兆震电子有限公司 | Insert injection molding method for double-bamboo-skin panel |
| CN101823315A (en) * | 2010-05-28 | 2010-09-08 | 昆山兆震电子有限公司 | Embedding and ejecting forming method for panel combined by bamboo surface and aluminium foil |
| CN102385106B (en) * | 2010-08-30 | 2014-04-02 | 成都易生玄科技有限公司 | Method for energy grade light ray curve transmission |
| KR20160072603A (en) * | 2014-12-15 | 2016-06-23 | 삼성전자주식회사 | Back light apparatus and display apparatus having the same |
| CN107065307B (en) * | 2017-06-05 | 2019-12-27 | 京东方科技集团股份有限公司 | Light collimation structure, substrate, backlight module and display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001116908A (en) * | 1999-10-19 | 2001-04-27 | Toppan Printing Co Ltd | Optical sheet and display using same |
| US6259561B1 (en) * | 1999-03-26 | 2001-07-10 | The University Of Rochester | Optical system for diffusing light |
| WO2002054119A1 (en) * | 2000-12-28 | 2002-07-11 | Fuji Electric Co., Ltd. | Light guiding plate and liquid crystal display device with the light guiding plate |
-
2003
- 2003-08-05 CN CNB031497683A patent/CN1302324C/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6259561B1 (en) * | 1999-03-26 | 2001-07-10 | The University Of Rochester | Optical system for diffusing light |
| JP2001116908A (en) * | 1999-10-19 | 2001-04-27 | Toppan Printing Co Ltd | Optical sheet and display using same |
| WO2002054119A1 (en) * | 2000-12-28 | 2002-07-11 | Fuji Electric Co., Ltd. | Light guiding plate and liquid crystal display device with the light guiding plate |
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| CN1580902A (en) | 2005-02-16 |
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Assignee: Efun Technology Co.,Ltd. Assignor: Industrial Technology Research Institute Contract fulfillment period: 2006.12.6 to 2023.8.4 Contract record no.: 2008990000032 Denomination of invention: Light source modulating device for function curve type lens grating Granted publication date: 20070228 License type: General permission Record date: 20080226 |
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