CN1673834B - Lighting devices and reflectors - Google Patents
Lighting devices and reflectors Download PDFInfo
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- CN1673834B CN1673834B CN2004100742671A CN200410074267A CN1673834B CN 1673834 B CN1673834 B CN 1673834B CN 2004100742671 A CN2004100742671 A CN 2004100742671A CN 200410074267 A CN200410074267 A CN 200410074267A CN 1673834 B CN1673834 B CN 1673834B
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- diffuser plate
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133605—Direct backlight including specially adapted reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Optical Elements Other Than Lenses (AREA)
Abstract
本发明提供一种可提高发光品位的照明装置及反射构件。关于本发明的照明装置的直下型背光灯(1)，在扩散反射片(15)的反射面(15a)的面上配置透镜片(16)。藉此，可维持高辉度且使入射前述扩散板的光的分布均匀，得到高发光品位。
The invention provides an illuminating device and a reflecting member capable of improving the quality of light emission. In the direct type backlight (1) of the lighting device of the present invention, the lens sheet (16) is arranged on the reflective surface (15a) of the diffusion reflection sheet (15). Thereby, high luminance can be maintained and the distribution of light incident on the diffusion plate can be made uniform, resulting in high luminous quality.
Description
Technical field
The present invention is applied to the backlight of liquid crystal indicator etc. about lighting device and reflecting member.
Background technology
In known techniques,, a kind of backlight of full run-down type is arranged as the employed lighting devices such as backlight of liquid crystal indicator etc.This direct-type backlight adopts at behind (down straight) the configuration light source as the diffuser plate of the planar pervasion component that forms light-emitting area, and disposes the formation of the reflecting surface that the light of this light source is reflected to the diffuser plate side behind at it.
This lighting device is uneven light as the light of its light-emitting area, and for example residual light that lamp shadow is arranged then can produce luminance difference on the picture of liquid crystal indicator, infringement picture grade.Therefore, in this lighting device, require to have the good luminous grade that is evenly distributed in the light-emitting area integral brightness.
In known techniques, light source reflecting surface behind as above-mentioned lighting device, use (1) to have the metallic luster sheet of the resulting glossy surfaces such as evaporation that utilize metal, (2) are configured as the reflecting plate of waveform or chevron, (for example with reference to patent documentations 1,2) such as (3) scattered reflection sheets.
[patent documentation 1]: the spy of Japanese Patent Laid Open Publication opens flat 5-61043 communique (the 2nd page).
[patent documentation 2]: the spy of Japanese Patent Laid Open Publication opens flat 6-250178 communique (the 2nd page).
But in the lighting device of the metallic luster sheet that utilizes above-mentioned (1), so catoptrical briliancy height, but because the metallic luster face carries out normal reflection with the light of light source is the removing difficulties of lamp shadow.And, under the situation of the reflecting plate that utilizes above-mentioned (2), reflecting plate complex-shaped, and be difficult to set the optimum shape that luminous grade is improved, also exist reflecting plate to need to process, need set the problem of the position relation of light source and reflecting plate shape in addition with high precision.And, under the situation of the scattered reflection sheet that utilizes above-mentioned (3), because will carry out scattered reflection from the light of light source, thus can obtain more aforementioned (1), (2) good luminous grade, but, require higher luminous grade from the product property aspect.
Summary of the invention
The purpose of this invention is to provide in view of the above problems a kind of and form, can obtain the lighting device and the reflecting member of higher luminous grade.
Lighting device of the present invention has: form the diffuser plate of light-emitting area, at the light source that the behind disposed of aforementioned diffuser plate, in the behind of aforementioned light source and the configuration of aforementioned diffuser plate subtend and diffusive reflective layer that the light of aforementioned light source is reflected to aforementioned diffuser plate side, wherein: on aforementioned diffusive reflective layer, dispose the lens jacket of lens face as aforementioned diffuser plate side, aforementioned lens jacket is wholely set with aforementioned diffusive reflective layer its roughly whole.
The present inventor finds, as utilizing the lighting device that adopts above-mentioned this formation, by on aforementioned diffusive reflective layer lens face being disposed lens jacket as aforementioned diffuser plate side, can make being evenly distributed of the emitted light of aforementioned diffuser plate, obtains high luminous grade.That is, the present inventor tests discovery, by dispose lens jacket on aforementioned diffusive reflective layer, the distribution of the emitted light of aforementioned diffuser plate is become evenly, and finish the present invention according to this opinion.
And, in above-mentioned lighting device, aforementioned lens jacket also can be wholely set with aforementioned diffusive reflective layer its roughly whole. in this case, even the heat that light source sends is added on the lens jacket, because aforementioned lens jacket and aforementioned diffusive reflective layer are wholely set, so also can prevent the warpage and the distortion such as crooked of aforementioned lens jacket, and can prevent to separate from the part of aforementioned diffusive reflective layer. by this, can prevent that the space between aforementioned diffusive reflective layer and aforementioned lens jacket from becoming inhomogeneous, and the refraction that makes the light between them keeps stable. therefore, can obtain stable reflected light, and form high luminous grade.
And in above-mentioned lighting device, it is good that aforementioned lens jacket has photostability.In this case, even the acceptance of aforementioned lens jacket from the ultraviolet ray of aforementioned light source, also can utilize its photostability and prevent the lens jacket deterioration.Therefore, the time dependent that can prevent the briliancy of this lighting device and luminous grade etc. descends.
And, reflecting member of the present invention is and the diffuser plate subtend configuration that forms light-emitting area, and the light that the light source that will be disposed between aforementioned reflecting member and aforementioned diffuser plate sends reflects to aforementioned diffuser plate, aforementioned reflecting member: comprise diffusive reflective layer that the light with aforementioned light source reflects, be formed on the lens jacket on the aforementioned reflection horizon, wherein aforementioned lens jacket is wholely set with aforementioned diffusive reflective layer its roughly whole.
As utilization resemble above-mentioned the reflecting member of formation, by will utilizing aforementioned diffusive reflective layer to spread and reflect, and make this reflected light by aforementioned lens jacket from the light in aforementioned lights source, the ejaculation light of ejaculation is reflected equably.Therefore, the reflecting surface that is suitable as aforementioned illumination apparatus uses.
As mentioned above, as utilizing,, can obtain in the light-emitting area high luminous grade that is evenly distributed of briliancy on the whole by lens jacket is set on diffusive reflective layer about lighting device of the present invention and reflecting member.
Description of drawings
Figure 1 shows that pattern sectional drawing about the direct-type backlight structure of first example of the present invention.
Fig. 2 is the planimetric map with the state of diffuser plate 12 dismountings of the direct-type backlight among Fig. 11.
Figure 3 shows that the pattern expanded view of the section of the part of surrounding with dotted line A among Fig. 1.
Fig. 4 (a) is depicted as the result's that the briliancy distribution of the light-emitting area of comparative example product is measured curve map, Fig. 4 (b) is depicted as the distribute result's that measures curve map of the briliancy of the light-emitting area of embodiment product, and Fig. 4 (c) is the planimetric map of the direct-type backlight that is used to illustrate the position that the distribution of briliancy is measured.
Fig. 5 is the pattern sectional drawing about the direct-type backlight inwall sole structure of second example of the present invention.
Fig. 6 is the pattern sectional drawing about the direct-type backlight inwall sole structure of the 3rd example of the present invention.
The explanation of symbol
1: direct-type backlight;
11: framework;
11a: inwall side;
11b: inwall bottom surface;
12: diffuser plate;
12a: light-emitting area;
13: light source;
13a: cold-cathode tube;
13a1: long leg;
13b: connector;
14: the scattered reflection sheet;
15: scattered reflection sheet (diffusive reflective layer);
15a: reflecting surface;
16: lens (lens jacket);
16a: lens bar;
16b: lens face;
16c: fast light layer;
17: adhesive coating;
18: reflecting member
Embodiment
Below, with reference to appended diagram preferable example of the present invention is described.In addition, in the following description, be with the occasion of the direct-type backlight of 10 inches of the correspondences that rear side was disposed that lighting device of the present invention are applicable to liquid crystal indicator for example, describe as an example.Figure 1 shows that pattern sectional drawing about the direct-type backlight structure of first example of the present invention.This direct-type backlight 1 comprises the box-shaped frame 11 of an opening, the diffuser plate 12 as planar pervasion component that is configured with the form of stopping up aforementioned opening, the light source 13 that is disposed in the behind of aforementioned diffuser plate 12 (down straight).
Diffuser plate 12 uses for example white such as polycarbonate, propylene or milky tabular body.In this example, use the acrylic resin plate of the trade name [acrylite No432] of the beautiful sun of Mitsubishi (RAYON) (company) system, its thickness of slab is set at 2mm.This moment, the light transmission rate of this diffuser plate 12 was expressed as 30%.This diffuser plate 12 is configured with the form of the opening that stops up said frame 11, and the light that set from behind light source 13 is sent spreads and sees through.Utilize this diffuser plate 12, the light that light source 13 is sent is even, and penetrates from the light-emitting area 12a of diffuser plate 12.
Fig. 2 is the planimetric map of the state that will remove about the diffuser plate 12 of the direct-type backlight of this example.Light source 13 comprises that 4 tubular bodies that for example make diameter 3mm form the cold-cathode tube 13a of U word shape, and is installed in respectively on the connector 13b as shown in Figure 2, and utilizes not shown lamp support seat etc. to be supported and be accommodated in the framework 11.
The long leg 13a1 of cold-cathode tube 13a is 20mm and slightly become abreast to be set up in parallel along the framework left and right directions at interval respectively.And, on light source 13, be connected with not shown phase inverter etc., and adopt the formation that can light a lamp, turn off the light.
On the 11b of the inwall bottom surface of framework 11, utilize sticker etc. be pasted with by scattered reflection sheet 15 and on the reflecting surface 15a of this scattered reflection sheet 15 as lens jacket and superimposed lens 16 formed reflecting members 18.Diffusion sheet 15 uses above-mentioned [E60V], and on the face of its reflecting surface 15a, and lens face 16 makes its part be adhered etc. by sticker etc. and be fixed on the scattered reflection sheet 15.As lens 16 is being carried out on the face of reflecting surface 15a under the superimposed state, the existence because of minim gap has between the two got involved air layer.
In this case, be used to carry out the micro concavo-convex of scattered reflection because on the surface of the reflecting surface 15a that constitutes by scattered reflection sheet 15, exist, and be provided with aforementioned air layer, thereby can make the scattered reflection of reflecting surface 15a more effective.
And, this lens 16 also can and reflecting surface 15a between be formed with the state of certain intervals and be fixed.
And this lens 16 is diffuser plate 12 sides with this lens face 16b, and carries out superimposed on scattered reflection bar 15 with the long side direction of the lens bar 16a form parallel with the long leg 13a1 of cold-cathode tube 13a.On the other hand, the long side direction of the lens bar 16a of lens 16 also can be configured along the direction to long leg 13a1 orthogonal.Its reason is, the diverse location of the long side direction of lens bar 16a formed to catoptrical effect on, do not have difference.
And the lens face surface of lens 16 utilizes fast light layer 16c to be capped.In this case, can utilize the ultraviolet ray of fast light layer 16c blocking, so can prevent to produce deteriorations such as back jaundice by the lens 16 of shapings such as propylene resin from light source 13.And, also can in lens 16, add photostabilizer.By this, the time dependent that can prevent the briliancy of this direct-type backlight 1 and luminous grade etc. descends.But, if employed direct-type backlight such as use, then do not need to utilize fast light layer and photostabilizer to prevent deterioration for the toy of product life about 500 hours.
Because this reflecting member 18 has lens 16 on reflecting surface 15a face, so if stick on the internal face of framework 11, then can be suitable as the reflecting surface of direct-type backlight 1.And, because as long as reflecting member 18 sticked on the 11b of inwall bottom surface on can constitute the reflecting surface 15a with lens jacket, institute is so that its installation property raising.And this reflecting member 18 not only can be used as the reflecting surface of the such direct-type backlight of this example, also applicable to the reflecting surface of for example indoor illumination machine, the reflecting plate of other similar illumination machine.
And in reflecting member 18, the reflecting surface 15a that is superimposed with lens 16 forms diffusive reflective layer by the scattered reflection sheet 15 that utilizes white color system.In this case, because reflecting surface 15a can make from the diffusion of the light of light source 13 and reflect, and make this reflected light scioptics sheet 16 and penetrate, so can penetrate uniform reflected light diffuser plate 12.By this, can improve luminous grade at light-emitting area 12a.
And, in this example, on the reflecting surface of the inwall side of framework 11 11a, do not use reflecting member 18 with lens 16.This be because, though using on the 11a of inwall side under the situation of reflecting member 18, as the good luminous grade of the goods problem that yet can obtain there is nothing special, but on the 11a of inwall side, do not use the occasion of reflecting member 18, can obtain better luminous grade.
Below, the present inventor is carried out, at about the direct-type backlight of above-mentioned example and the test result of carrying out be illustrated.
As implementing the direct-type backlight that sample uses above-mentioned example, sample uses the direct-type backlight do not have lens 16 on the reflecting surface 15a of scattered reflection sheet 15 as a comparison, the briliancy of light-emitting area 12a and luminous grade is experimentized measure and estimated.Its result is shown in following table 1.
[table 1]
| Reflecting surface | The dimensional thickness T of backlight (mm) | Luminous grade | Briliancy (cd/m 2) | Colourity | |
| Comparative sample | No |
15 | × | 9775 | x＝0.3134 y＝0.3347 |
| Reflecting surface | The dimensional thickness T of backlight (mm) | Luminous grade | Briliancy (cd/m 2) | Colourity | |
| Implement sample | Lens are arranged | 15 | ○ | 9639 | x＝0.3200 y＝0.3433 |
In table 1, comparative sample and enforcement sample are being measured under the identical condition except having or not lens 16.By this as can be known, briliancy and colourity are comparative samples or implement sample all about equally.
About luminous grade, be depicted as the result's that the briliancy distribution of light-emitting area 12a is measured a example.Fig. 4 (a) is depicted as the result's that the briliancy distribution of the light-emitting area of comparative example product is measured curve map, and Fig. 4 (b) is depicted as the result's that the briliancy distribution of the light-emitting area of embodiment product is measured curve map.The distribution of this briliancy is shown in Fig. 4 (c), and expression is the result that the distribution of the bright line of X1-X2 line is measured to the left and right directions approximate centre of light-emitting area 12a.That is, resulting briliancy Determination of distribution result represents that the briliancy of light-emitting area above-below direction distributes.In curve map, transverse axis is represented the position on the X1-X2 line, and the longitudinal axis is represented briliancy.
By this Fig. 4 (a) as can be known, the briliancy of comparative sample distributes, all present in whole zone almost shown in the part of surrounding as dotted line Y among the figure, with the bigger wavelength this increase and decrease form that fluctuates.This situation can think to occur the lamp shadow of light source 13, and not talkative luminous grade is good.On the other hand, implement sample and compare, present a kind of steady and uniform distribution, we can say to have good luminous grade with comparative sample.Like this, can confirm implementing sample promptly in the direct-type backlight 1 about this form, the lamp shadow that can access light source 13 shows unconspicuous luminous state of high grade.
As mentioned above, by experimental result as can be known, about the direct-type backlight 1 of this example by at the bottom surface of framework 11 11b, the reflecting member 18 of lens 16 is disposed in use on the face of the reflecting surface 15a of scattered reflection sheet 15, can will suitably reflect to the light that reflecting surface 15a penetrates from light source 13, and the distribution of the emitted light of diffuser plate 12 is kept evenly, obtain high luminous grade so can not damage briliancy and colourity.
And, in the direct-type backlight 1 of this example, as mentioned above, scattered reflection sheet 15 and lens 16 this materials cheaply especially critically can be positioned, get final product and fix, suppress cost and luminous direct-type backlight of high grade so can provide with easy method.
And, the present inventor is in order to verify the slimming that utilizes direct-type backlight of the present invention, in Fig. 1,2 kinds (15mm, 18mm) that prepared to make by the interval t of change light source 13 and diffuser plate 12 the gauge T of direct-type backlight 1 to have nothing in common with each other carry out same experiment.Its result is shown in following table 2.
[table 2]
| Reflecting surface | The gauge T (mm) of backlight | Luminous grade | Briliancy (cd/m 2) | |
| Comparative sample | No |
18 | ○ | 9416 |
| Implement sample | Lens are arranged | 15 | ○ | 9639 |
In table 2, comparative sample and implement sample and except the gauge T of this direct-type backlight 1 that has that it's too late of the lens 16 of the inwall bottom surface of framework 11, measuring under the identical condition.As a result, although gauge T is little in implementing sample, luminous grade, briliancy are all identical with comparative sample.Usually, interval t as light source 13 and diffuser plate 12 is little, the tendency that then exists luminous grade to worsen, but as can be known by this table, even in this case, by using the reflecting member 18 that on the face of reflecting surface 15a, has disposed lens 16, also luminous grade and briliancy can be maintained the level equal with comparative sample.That is, the direct-type backlight 1 of this example improves luminous grade by utilization has been equipped with the reflecting member 18 of lens 16, can make the slimming of direct-type backlight 1 become possibility.
And the present inventor verifies the briliancy raising that utilizes direct-type backlight 1 of the present invention.Its result is shown in following table 3.
[table 3]
| Reflecting surface | The dimensional thickness T of backlight (mm) | Luminous grade | Briliancy (cd/m 2) | The diffuser plate transmitance | |
| Comparative sample | No |
18 | ○ | 9416 | 30％ |
| Implement sample | Lens are arranged | 18 | ○ | 10113 | 37％ |
In table 3, comparative sample with implement sample and except the different diffuser plate 12 of the transmitance that has that it's too late and use light of the lens 16 of frame inner wall bottom surface, measuring under the identical condition.As a result, in implementing sample, luminous grade is identical with comparative sample, and relatively sample raising of briliancy.Hence one can see that, in the enforcement sample that uses lens 16, because the raising of luminous grade, so, also can keep the luminous grade equal with comparative sample even use contains the high diffuser plate 12 of light transmission rate that makes the low essential factor of luminous grade.That is, the direct-type backlight 1 of this example can utilize the raising of luminous grade and use the high diffuser plate of light transmission rate, and briliancy is improved.
Fig. 5 is the pattern sectional drawing about the direct-type backlight inwall sole structure of second example of the present invention.The main difference point of this example and first example is, by lens 16 and scattered reflection sheet 15 are utilized roughly adhesions comprehensively such as sticker, and is formed on the reflecting member 18 that is wholely set lens jacket on the face of reflecting surface 15a of scattered reflection sheet 15.Others are identical with first example, so omit explanation.
In this case, in reflecting member 18,, adhered to roughly whole of reflecting surface 15a as the lens 16 of lens jacket and go up and form one by the adhesive coating 17 that utilizes sticker.This adhesive coating 17 for slightly transparent preferable, can use at adhesive coating 17 to be slightly transparent such sticker under with the state of both stable adhesions under the state that scattered reflection sheet 15 and lens 16 are adhered.
But, in the reflecting member 18 of this example, because with lens 16 integral type adhesion on whole of reflecting surface 15a, so even the heat that cold-cathode tube 13a produces is applied on the lens 16, also can prevent the distortion of lens 16, and can prevent to separate from the part of reflecting surface 15a. by this, can prevent that the space between reflecting surface 15a and the lens 16 from becoming inhomogeneous, and make the maintenances such as refraction of the light between them stable. therefore, can obtain stable reflected light, and form high luminous grade.
Figure 6 shows that pattern sectional drawing about the direct-type backlight inwall sole structure of the 3rd example of the present invention.The main difference point of this example and second example is, forms a kind of reflecting member 18 that utilizes UV hardening resin direct integrally formed lens jacket 16 on roughly whole of the reflecting surface 15a of scattered reflection sheet 15.Others are identical with second example, so omit explanation.
Utilize the lens jacket 16 of this UV hardening resin to resemble following formation like this.That is, on the face of the reflecting surface 15a of scattered reflection sheet 15 with suitable thickness coating UV hardening resin.And, the metal mold etc. that utilizes relief printing plate on the surface for example with the lens bar of a plurality of fine section triangles of equidistant formation.Then, make the sclerosis of UV hardening resin by irradiation ultraviolet radiation, and form lens jacket 16.
When using this reflecting member 18, except preventing to produce on the lens jacket 16 warpage partly separates with distortion such as crooked and from reflecting surface 15a, owing between scattered reflection sheet 15 and lens jacket 16, do not have adhesive coating, do not decay in vain so can not make from the reflected light of scattered reflection sheet 15.Therefore, can obtain more suitable reflected light.
In addition, lighting device of the present invention and reflecting member, be not limited to above-mentioned example, the formation of the material in the shape of lens jacket, material, configuration, reflection horizon, the formation of reflecting member, material, lighting device etc. can intention according to the present invention be taken the circumstances into consideration to change.
Claims (3)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004085394 | 2004-03-23 | ||
| JP2004-085394 | 2004-03-23 | ||
| JP2004085394A JP2005276518A (en) | 2004-03-23 | 2004-03-23 | Lighting system and reflecting member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1673834A CN1673834A (en) | 2005-09-28 |
| CN1673834B true CN1673834B (en) | 2010-05-12 |
Family
ID=35046461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100742671A Expired - Fee Related CN1673834B (en) | 2004-03-23 | 2004-09-08 | Lighting devices and reflectors |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP2005276518A (en) |
| KR (1) | KR100698465B1 (en) |
| CN (1) | CN1673834B (en) |
| TW (1) | TWI286777B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5045236B2 (en) * | 2007-05-22 | 2012-10-10 | 凸版印刷株式会社 | Multilayer sheet |
| JP4924438B2 (en) * | 2008-01-09 | 2012-04-25 | エプソンイメージングデバイス株式会社 | LIGHTING UNIT, LIQUID CRYSTAL DEVICE, AND ELECTRONIC DEVICE |
| JP4780216B2 (en) | 2008-10-27 | 2011-09-28 | ソニー株式会社 | Surface light source device, manufacturing method thereof, and image display device |
| JP5400479B2 (en) * | 2009-05-29 | 2014-01-29 | 帝人デュポンフィルム株式会社 | Reflector for direct type backlight unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5966192A (en) * | 1995-03-08 | 1999-10-12 | Nitto Jushi Kogyo Kabushiki Kaisha | Surface light source device and a liquid crystal display |
| US6692137B2 (en) * | 2001-05-11 | 2004-02-17 | L-3 Communications | Display system using a hybrid backlight reflector |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100385692B1 (en) * | 1999-11-26 | 2003-05-27 | 주식회사 광운디스플레이기술 | Fluorescent Lamp Planar-Array Type LCD Back-Light |
-
2004
- 2004-03-23 JP JP2004085394A patent/JP2005276518A/en active Pending
- 2004-07-27 TW TW093122354A patent/TWI286777B/en not_active IP Right Cessation
- 2004-09-08 CN CN2004100742671A patent/CN1673834B/en not_active Expired - Fee Related
- 2004-10-06 KR KR1020040079396A patent/KR100698465B1/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5966192A (en) * | 1995-03-08 | 1999-10-12 | Nitto Jushi Kogyo Kabushiki Kaisha | Surface light source device and a liquid crystal display |
| US6692137B2 (en) * | 2001-05-11 | 2004-02-17 | L-3 Communications | Display system using a hybrid backlight reflector |
Non-Patent Citations (3)
| Title |
|---|
| JP特开2002-244572A 2002.08.30 |
| JP特开平5-281541A 1993.10.29 |
| JP特开平8-297336A 1996.11.12 |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100698465B1 (en) | 2007-03-23 |
| CN1673834A (en) | 2005-09-28 |
| KR20050094742A (en) | 2005-09-28 |
| TW200532739A (en) | 2005-10-01 |
| JP2005276518A (en) | 2005-10-06 |
| TWI286777B (en) | 2007-09-11 |
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