CN102169202A - Brightening module and light source device - Google Patents
Brightening module and light source device Download PDFInfo
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- CN102169202A CN102169202A CN2011100354182A CN201110035418A CN102169202A CN 102169202 A CN102169202 A CN 102169202A CN 2011100354182 A CN2011100354182 A CN 2011100354182A CN 201110035418 A CN201110035418 A CN 201110035418A CN 102169202 A CN102169202 A CN 102169202A
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Abstract
A brightness enhancement module comprises a microstructure optical modulation component and a polarization component; the microstructure optical modulation component is provided with a first optical surface and a second optical surface capable of receiving incident light, and the polarization components are arranged at the position opposite to the second optical surface in pairs; wherein, the microstructure optical modulation component also comprises a diffusion part and a light collecting part; the diffusion part is made of light-permeable material and can diffuse the incident light, the diffusion part is formed on the first optical surface, the light collection part is made of light-permeable material and can collect the incident light, and the light collection part is formed on the diffusion part.
Description
This case is for dividing an application the application number of its female case: 200510103143.6, and the applying date: on September 16th, 2005, applicant: Industrial Technology Research Institute, denomination of invention: Emboldening module and light supply apparatus.
Technical field
The present invention relates to a kind of Emboldening module and light supply apparatus, relate in particular to and diffusion component and light-collecting component can be arranged at same rete and can strengthen a kind of Emboldening module of polarisation and the light supply apparatus that uses this Emboldening module.
Background technology
At present in the backlight module of display device, mainly be utilize brightening piece (rhombus lens) (BEF) and the collocation of reflective polarizers (DBEF or CBEF) blooming piece make and be used for reaching the purpose that light is concentrated, water chestnut mirror structure has good collection characteristics (dwindling the dispersion angle of dispersing light source) on optical effect, but allow the less light of angle produce total reflection easily, reduce the service efficiency of light, so some briliancy have relatively high expectations or battery powered display device on, in order to improve briliancy, increase the light utilization ratio and save electric power, can use reflective polarizers (DBEF or CBEF) to utilize light to achieve the goal once more, but the source of these two kinds of associated components is nearly all grasped by 3M company at present, though therefore the Taiwan display industry is flourish, but the key part and component of display industry is limited by the foreign trader for a long time, causes profit low; In addition, the diaphragm number that the backlight module framework uses is many, causes reductions of module optical efficiency, module cost height relatively, assembles shortcomings such as yield is limited.
See also Figure 1A, United States Patent (USP) case US6,091, No. 547 " briliancy control film (Luminance Control Film) " utilizes two diamond structures 10 and 12 of fitting to reach the effect of control light, guide lights, make light concentrate, increase the briliancy of forward light; Though this structure can be concentrated light effectively, yet can't reach the purpose of diffusion.
Please refer to Figure 1B again, Jap.P. case JP2001324608 number " scattering sheet (Light-Diffusing Sheet) " discloses the resin particle 16 of distribution different-grain diameter size on a transparency carrier 14 and fixing to stick together resin 18, can produce the purpose that mixed and disorderly scattering reach the light diffusion after making light by transparency carrier 14; But can make the light service efficiency of diffusion sheet reduce owing to add these molecules, and simple used for diffusion, can't reach concentrated purpose.
The United States Patent (USP) case 6104536 of 3M company, 6208466,6219121,6268961 and No. 6576887, the polar biased start principle of these patent cases is shown in Fig. 2 A, wherein brightness enhancement film 220 by a polarization sheet 221 (for example: the p direction) formed with a compound substance 222 (about 800 layers), after linear non-polarization light 223 incident and touching polarization sheet 221, a polarization components 223a (be p direction) identical with polarization sheet 221 polarised directions can be directly by polarization sheet 221, and when the thickness of compound substance 222 is adjusted into about 1/4 wavelength of non-polarization light 223, then be reflected with another polarization components 223b (being the s direction) of polarization components 223a quadrature, the polarization components 223b of reflection can be the redistribution state (promptly by scattering layer 222a reflection again, become a non-polarization light 224 that contains p direction polarization component 224a and s direction polarization component 224b, and p direction polarization component 224a just can by the polarization sheet 221, and s direction polarization component 224b is reflected once again and run into scattering layer 222a after be reallocated ... so constantly repeatedly; Therefore, can reach the polarization of 100% incident light on this structural theory.
Another relevant patent is the United States Patent (USP) case 6016177 of eastern electrician of day company, 6088079,6339501,6342934 and No. 6433853, the polar biased principle of these patent cases is shown in Fig. 2 B, wherein brightness enhancement film 230 by a polarization sheet 231 (for example: the p direction), one 1/4 wavelength sheets 232 and a cholesterol liquid crystal 233 are formed, after circular non-polarization light 234 incidents, the polar biased component that cholesterol liquid crystal 233 only can allow a direction (for example left-handed) by and convert thereof into line style polar biased light 234a by 1/4 wavelength sheet 232 and pass through by polarization sheet 231 again, the polar biased component 234b of another orthogonal directions (dextrorotation) then can reflect, the polar biased component 234b of reflection can be the redistribution state (promptly by scattering layer 233a reflection again, become a Circular Polarisation light 235 that contains left-handed polar biased component 235a and dextrorotation polar biased component 235b), and left-handed polar biased component 235a just can be by this polarization sheet 231 after through these 1/4 wavelength sheet, 232 conversions, and dextrorotation polar biased component 235b is reflected once again and run into scattering layer 233a after be reallocated ... so constantly repeatedly; Be similar to Fig. 2 A, also can reach 100% incident light polarization on this structural theory.
In conjunction with the technology of the brightening piece of above-mentioned prior art and polaroid No. 6025897, the United States Patent (USP) case " display (Display with reflective polarizer and randomizing cavity) with reflecting polarized wafer and random alignment cavity " as 3M company, its sectional view as shown in Figure 3.In Fig. 3, disclose a collocation brightening piece (BEF is arranged, Brightness Enhancement Films) with reflective polarizers (DBEF, Double Brightness Enhancement Films) display, wherein this display is made of a planar light source 30, an Emboldening module 32 and a display module 34; This Emboldening module 32 is made up of a brightening piece 320 and a reflective brightening piece 322.
At first, planar light source 30 300 (a, b, c, the d) that emit beam, after the effect via reflective brightening piece 322, can allow the polar biased light 302a of specific direction pass through, all the other are reflected into polar biased light 304 (b, c, d), and polar biased light 304 (b, c, d) can redistribute into light 306 (a, b, c, d) after a reflecting surface 310 reflections, reflective brightening piece 322 allows the polar biased light 308a of specific direction pass through again, so makes the purpose that increases briliancy in order to reach repeatedly.In general used brightening piece 320 is diamond structure in this kind framework, yet, though use water chestnut mirror structure light can be concentrated, dwindle angle, make easily that but angle produces total reflection with regard to less light originally, reduces the service efficiency of light.
Therefore, needed is a kind of Emboldening module, and it can overcome the shortcoming of prior art, and the present invention can satisfy this demand.
Summary of the invention
Fundamental purpose of the present invention provides a kind of Emboldening module and light supply apparatus, and it utilizes the mode of microstructure to reach the combined optical effect of light harvesting and diffusion, to reach the purpose of effective lifting optical efficiency.
Secondary objective of the present invention provides a kind of Emboldening module and light supply apparatus, its by the microstructure cylinder making and utilize roll extrusion to produce once-forming to reach the purpose that reduces production costs.
Another object of the present invention provides a kind of Emboldening module and light supply apparatus, it is in conjunction with the complex function optical modulation assembly and the reflective polarization sheet that utilize microstructure to finish, to reach the use amount of simplifying diaphragm in the backlight module and the purpose that promotes the light service efficiency.
For reaching above-mentioned purpose, the invention provides a kind of Emboldening module, it comprises a microstructure optical modulation assembly and a polarisation assembly; This microstructure optical modulation assembly has one first optical surface and can receive one second optical surface of an incident light, and this polarisation assembly is located at and this second optical surface relative position in twos; Wherein this microstructure optical modulation assembly also comprises:
One diffusion part, it is made and can spread this incident light by transparent material, and this diffusion part is formed on this first optical surface; And
One light collecting portion, it is made and can concentrate this incident light by transparent material, and this light collecting portion is formed on this diffusion part.
For reaching above-mentioned purpose, the present invention more provides a kind of light supply apparatus, and it comprises:
One reflector plate;
One light guide plate, it is positioned on this reflector plate;
At least one light source, it is positioned at around the light guide plate and can launches an incident light;
One Emboldening module, it is positioned on the light guide plate and comprises at least one microstructure optical modulation assembly and a polarisation assembly, this at least one microstructure optical modulation assembly has one first optical surface and can receive one of this incident light second optical surface, and the polarisation assembly is located at and second optical surface relative position in twos; Wherein at least one microstructure optical modulation assembly also comprises:
One diffusion part, it is made and can spread this incident light by transparent material, and this diffusion part is formed on first optical surface; And
One light collecting portion, it is made and can concentrate this incident light by transparent material, and this light collecting portion is formed on this diffusion part.
Preferably, this diffusion part comprises at least one the curved unit with a curved cellular construction degree of depth.
Preferably, this curved cellular construction degree of depth is in 5 microns～500 microns scope.
Preferably, this light collecting portion comprises at least one diamond-shaped element with a drift angle and a height.
Preferably, this drift angle is in the scope of 30 degree～140 degree.
Preferably, this height is greater than 0 micron and be not more than in 500 microns the scope.
Preferably, this second optical surface is level and smooth optical surface.
Preferably, this second optical surface is coarse optical surface.
Preferably, this polarisation assembly is a reflecting polarized wafer.
Preferably, the polarised direction difference of the light of this reflecting polarized wafer institute's transmission and reflection.
Preferably, the light of this reflecting polarized wafer institute's transmission and reflection is all linear polar biased light.
Preferably, this polarisation assembly also comprises the one 1/4 wavelength sheets that are positioned on this reflecting polarized wafer.
Preferably, the light of this reflecting polarized wafer institute's transmission and reflection is all round polar biased light.
Preferably, this polarisation assembly is the raster unit of a plurality of equidistant arrangements, and this raster unit has a live width and a line height.
Preferably, this line width is greater than 0 nanometer and less than 200 nanometers.
Preferably, this line is tall and big in 50 nanometers and less than 500 nanometers.
Preferably, this live width is 5%～95% divided by the value of this live width and spacing sum.
Preferably, this raster unit is made by metal.
Preferably, this metal is aluminium or silver.
Preferably, this light supply apparatus comprises two microstructure optical modulation assemblies, this two microstructure optical modulation assembly overlap each other and be greater than 0 the degree and be not more than 90 the degree the angles of cut.
Description of drawings
Figure 1A is the synoptic diagram of a prior art;
Figure 1B is the synoptic diagram of another prior art;
Fig. 2 A is the synoptic diagram of the light polar biased modular converter of a prior art;
Fig. 2 B is the synoptic diagram of the light polar biased modular converter of another prior art;
Fig. 3 is the synoptic diagram in conjunction with the display module of the brightening piece of prior art and polaroid;
Fig. 4 A is the optical characteristics synoptic diagram of rhombus lens;
Fig. 4 B is the optical characteristics synoptic diagram of lens pillar;
Fig. 4 C is the drawing in side sectional elevation of the microstructure optical modulation assembly among the present invention;
Fig. 5 is the processing synoptic diagram of the microstructure optical modulation assembly among the present invention;
Fig. 6 is the synoptic diagram of an alternate embodiment of the microstructure optical modulation assembly among the present invention;
Schematic cross section when Fig. 7 A is applied to light supply apparatus for Emboldening module of the present invention;
Schematic cross section when Fig. 7 B is applied to light supply apparatus for Emboldening module of the present invention, it shows another embodiment;
Fig. 8 is for using the storehouse synoptic diagram of two microstructure optical modulation assemblies;
Fig. 9 is the synoptic diagram with polarisation assembly of subwavelength structure;
Figure 10 is the drawing in side sectional elevation of the microstructure optical modulation assembly among the present invention, and it shows another embodiment; And
Figure 11 is the drawing in side sectional elevation of the microstructure optical modulation assembly among the present invention, and it shows another embodiment again.
Wherein, Reference numeral:
The 7-light supply apparatus
The 10-diamond structure
The 12-diamond structure
The 14-transparency carrier
The 16-resin particle
18-sticks together resin
The 30-planar light source
The 32-Emboldening module
The 34-display module
The 40-microstructure optical modulation assembly
42-first optical surface
44-second optical surface
The 46-diamond-shaped element
48-curved unit
The 50-plastic base
52-ultraviolet ray moulding material
54-microstructure die
The 56-cylinder
The 60-minimum unit
The 70-light source
The 72-reflector plate
The 74-light guide plate
The 76-Emboldening module
90-polarisation assembly
92-light
92a-polar biased light
92b-polar biased light
The 220-brightness enhancement film
The 221-sheet that polarizes
The 222-compound substance
The 222a-scattering layer
The linear non-polarization light of 223-
223a-polarization components light
223b-polarization components light
224-non-polarization light
The 224a-polarization components
The 224b-polarization components
The 230-brightness enhancement film
The 231-sheet that polarizes
232-1/4 wavelength sheet
The 233-cholesteryl liquid crystal
The 233a-scattering layer
The circular non-polarization light of 234-
The linear polar biased light of 234a-
234b-polar biased component
235-Circular Polarisation light
The left-handed polar biased component of 235a-
235b-dextrorotation polar biased component
300a-light
300b-light
300c-light
300d-light
302a-polar biased light
304b-polar biased light
304c-polar biased light
304d-polar biased light
306a-light
306b-light
306c-light
306d-light
308a-polar biased light
The 310-reflecting surface
The 320-brightening piece
The reflective brightening piece of 322-
430-water chestnut mirror
The 432-incident light
The 434-lens
The 436a-incident light
The 436b-incident light
The 436c-incident light
The 436d-incident light
The 438-assembling area
The 440-particle
The 700-incident light
760-polarisation assembly
The 762-microstructure optical modulation assembly
The 764-microstructure optical modulation assembly
The 800-incident light
The 900-raster unit
The a-drift angle
The b-curved cellular construction degree of depth
The c-live width
D-line height
The e-spacing
The h-height
θ-angle
α-angle
Embodiment
Describe the present invention for reaching employed technological means of purpose and effect hereinafter with reference to accompanying drawing, and only be aid illustration, and the technological means of this case is not limited in this below in conjunction with the cited embodiment of accompanying drawing.
See also Fig. 4 A, diamond structure has good collection characteristics (dwindling the dispersion angle of dispersing light source) on optical effect; According to taking charge of like this law (Snell ' s Law), after incident light 432 is injected water chestnut mirror 430, if angle θ is greater than the cirtical angle of total reflection, then incident light 432 can be by total reflection (dotted arrow among Fig. 4 A) in water chestnut mirror 430, if angle θ is less than the cirtical angle of total reflection, then incident light 432 is penetrating these water chestnut mirror 430 backs (solid arrow among Fig. 4 A) off-normal (dotted line among Fig. 4 A) once more, thereby reaches the light harvesting effect.
Again, surface-shaped structure then can show the scattering nature of effective range because of the curved surface characteristic on optical effect, shown in Fig. 4 B, as incident light 436a, when after incident light 436b, the incident light 436c of axle and incident light 436d inject lens 434, can converge at assembling area 438 earlier and then disperse; Utilize this characteristic can reach the beam angle convergence of big incident angle light and the purpose of homogenising (obfuscation).
Emboldening module proposed by the invention has the composite effect that spreads with light harvesting to light source, and this Emboldening module surface mainly is made up of the microstructure with above-mentioned two kinds of geometric properties, and meaning promptly is made up of diamond structure and surface-shaped structure.Therefore, the storehouse combination by these two kinds of structures can produce the double effects of light harvesting and diffusion to light source.
See also Fig. 4 C, it is the drawing in side sectional elevation of the microstructure optical modulation assembly in the Emboldening module of the present invention.Microstructure optical modulation assembly 40 has one first optical surface 42 and one second optical surface 44, this second optical surface 44 is used to receive the incident light (not shown), be formed with a curved unit 48 on first optical surface 42, also form a diamond-shaped element 46 on the curved unit 48, this diamond-shaped element 46 is used for concentrating light, also be light collecting portion, 48 of this curved unit are used to spread light, also be diffusion part, diamond-shaped element 46 has a drift angle a and a height h, curved unit 48 has a curved cellular construction degree of depth b, by suitable selection drift angle a, curved cellular construction degree of depth b, the composition material of height h and microstructure optical modulation assembly 40 (promptly, the selective refraction rate), can adjust the light harvesting degree that microstructure optical modulation assembly 40 shown and the strong and weak ratio of diffusibleness according to the different needs of product.
Fig. 5 is the processing synoptic diagram of above-mentioned microstructure optical modulation assembly.When making this microstructure optical modulation assembly, on plastic base 50, be coated with one deck ultraviolet ray moulding material 52 earlier, cross this ultraviolet ray moulding material 52 with cylinder 56 roll extrusion that are equiped with microstructure die 54 then, can on this ultraviolet ray moulding material 52, form required pattern, shine this ultraviolet ray moulding material 52 with the ultraviolet light (not shown) then and make its curing, can obtain microstructure optical modulation assembly.
Certainly, the microstructure optical modulation assembly among the present invention is non-only to be confined to diamond-shaped element of collocation on the curved unit, and also can have multiple collocation to change.As shown in Figure 6, the minimum unit 60 of microstructure optical modulation assembly also can be four diamond-shaped element of collocation on the curved unit; These variations are set according to the actual needs situation according to the user fully, repeat no more.
Schematic cross section when Fig. 7 A is applied to light supply apparatus for Emboldening module of the present invention.In Fig. 7 A, light supply apparatus 7 comprises a light source 70, a reflector plate 72, a light guide plate 74, and an Emboldening module 76, and this Emboldening module 76 is made up of a polarisation assembly 760 and a microstructure optical modulation assembly 762; Light source 70 is positioned at around the light guide plate 74 and can launches an incident light 700, and light guide plate 74 is positioned on the reflector plate 72, and Emboldening module 76 is positioned on the light guide plate 74; So, after incident light 700 is polarized by polarisation assembly 760 earlier, (level or vertical) concentrated and the double effects (for example horizontal visibility or the vertical visibility in order to promote display) that spreads by microstructure optical modulation assembly 762 on single direction again, the display characteristic that makes light supply apparatus 7 can promote optical efficiency and have excellence.
Schematic cross section when Fig. 7 B is applied to light supply apparatus for Emboldening module of the present invention, it shows another embodiment.In Fig. 7 B, it is all identical with Fig. 7 A that each forms assembly, so repeat no more, its difference part is that this Emboldening module 76 comprises two microstructure optical modulation assemblies 762 and 764, and this microstructure optical modulation assembly 762 also can be a special angle α with microstructure optical modulation assembly 764 except that overlapping each other, as shown in Figure 8; So, the double effects (for example horizontal visibility and vertical visibility) that this incident light 700 can be concentrated simultaneously on two directions and spread by this microstructure optical modulation assembly 762 and 764 in order to promote display simultaneously, the display characteristic that makes this light supply apparatus 7 can promote optical efficiency and have excellence.
Certainly, be used as the polarisation assembly except using existing reflecting polarized wafer, the present invention also can use the raster unit (subwavelength structure) of a plurality of equidistant arrangements to be used as the polarisation assembly, sees also Fig. 9.Wherein this polarisation assembly 90 is made up of a plurality of raster units 900 of arranging with equidistant e, and this raster unit 900 has a live width c and the high d of a line, and live width c is preferable greater than 0 nanometer and less than 200 nanometers, and the high d of line is preferable greater than 50 nanometers and less than 500 nanometers; Live width c is preferably 5%～95% divided by the value (grating period ratio) of this live width c and this spacing e sum.When a light 92 touched this polarisation assembly 90, polarization direction and these raster units 900 vertical polar biased light 92a can pass through, and polarization direction and these raster units 900 parallel polar biased light 92b then are reflected.Therefore, this kind subwavelength structure also can be reached the effect of linear polarisation, uses so can be used as the polarisation assembly.In addition, raster unit 900 can be made by reflectivity good metal material (for example aluminium or silver etc.).
In the present invention, the curved cellular construction degree of depth of curved unit is in 5 microns～500 microns scope, and the drift angle of diamond-shaped element is in the scopes of 30 degree～140 degree, and the height of diamond-shaped element is greater than 0 micron and be not more than in 500 microns the scope; Second optical surface can be level and smooth or coarse optical surface (better for making diffusion effect), when desire is made as rough surface with this second optical surface 44, can be at the particle 440 that is coated with the different-grain diameter size on the microstructure optical modulation assembly 40 or integrally formed when making this microstructure optical modulation assembly 40, as Figure 10 and shown in Figure 11; When stacked two microstructure optical modulation assemblies, microstructure optical modulation assembly can be the special angles that are not more than 90 degree greater than 0 degree each other.
From the above, the Emboldening module that this patent proposed is except that can polarizing to light source, the composite effect that also has diffusion and light harvesting simultaneously, utilize the microstructure optical modulation assembly existing polarisation assembly (3M company or day eastern electrician's reflecting polarized wafer or the grating of subwavelength structure) of arranging in pairs or groups, this Emboldening module can show the optics diffusion function of height controllability, to reach the purpose that replaces traditional light-collecting piece and diffusion sheet simultaneously, when this kind Emboldening module is applied in the backlight module, can promote optical efficiency, simplify module architectures and reduce the module cost, have the product of competitive power for this reason in the technical field.
The above only is preferred embodiment of the present invention, can not limit the scope that the present invention is implemented with this.The equalization of doing according to claim of the present invention changes and revises, and all should belong in the scope that patent of the present invention contains.
Claims (14)
1. Emboldening module comprises:
One microstructure optical modulation assembly, it has one first optical surface and one second optical surface that can receive an incident light, and described microstructure optical modulation assembly also comprises:
One diffusion part, it is made and can spread described incident light by transparent material, and described diffusion part is the curved unit that is formed at a plurality of projectioies on described first optical surface;
One light collecting portion, it is made and can concentrate described incident light by transparent material, and described light collecting portion is at least one diamond-shaped element that forms at the top of the projection of each curved unit of described diffusion part; And
One polarisation assembly, it is located at and described second optical surface relative position in twos.
2. Emboldening module as claimed in claim 1 is characterized in that, described curved cellular construction has at least one curved cellular construction degree of depth, and the described curved cellular construction degree of depth is in 5 microns～500 microns scope.
3. Emboldening module as claimed in claim 1, it is characterized in that described light collecting portion comprises a diamond-shaped element structure, described diamond-shaped element structure has a drift angle and a height, described drift angle is in the scopes of 30 degree～140 degree, and described height is greater than 0 micron and be not more than in 500 microns the scope.
4. Emboldening module as claimed in claim 1 is characterized in that, described microstructure optical modulation assembly is coating one deck ultraviolet ray moulding material on plastic base, then by microstructure die rolling forming, then solidifies with UV-irradiation.
5. Emboldening module as claimed in claim 1 is characterized in that, described polarisation assembly is a reflecting polarized wafer.
6. Emboldening module as claimed in claim 5 is characterized in that, described polarisation assembly also comprises the one 1/4 wavelength sheets that are positioned on the described reflecting polarized wafer.
7. Emboldening module as claimed in claim 1, it is characterized in that, described polarisation assembly is the raster unit of a plurality of equidistant arrangements, described raster unit has a live width and a line height, described live width is greater than 0 nanometer and less than 200 nanometers, described line is tall and big in 50 nanometers and less than 500 nanometers, and described live width is 5%～95% divided by the value that described live width adds described spacing sum.
8. light supply apparatus comprises:
One reflector plate;
One light guide plate, it is positioned on the described reflector plate;
At least one light source, it is positioned at around the described light guide plate and can launches an incident light; And
One Emboldening module, it is positioned on the described light guide plate and comprises:
At least one microstructure optical modulation assembly, it has one first optical surface and one second optical surface that can receive described incident light, and described at least one microstructure optical modulation assembly also comprises:
One diffusion part, it is made and can spread described incident light by transparent material, and described diffusion part is the curved unit that is formed at a plurality of projectioies on described first optical surface;
One light collecting portion, it is made and can concentrate described incident light by transparent material, and described light collecting portion is at least one diamond-shaped element that forms at the top of the projection of each curved unit of described diffusion part; And
One polarisation assembly, it is located at and described second optical surface relative position in twos.
9. light supply apparatus as claimed in claim 8 is characterized in that, described diffusion part comprises a curved cellular construction, and described curved cellular construction has at least one curved cellular construction degree of depth.
10. light supply apparatus as claimed in claim 8 is characterized in that, described diamond-shaped element has a drift angle and a height.
11. light supply apparatus as claimed in claim 8, it comprises two microstructure optical modulation assemblies, and described microstructure optical modulation assembly overlaps each other and is the angle of cut of spending less than 90.
12. light supply apparatus as claimed in claim 8 is characterized in that, described polarisation assembly is a reflecting polarized wafer.
13. light supply apparatus as claimed in claim 8 is characterized in that, described polarisation assembly also comprises the one 1/4 wavelength sheets that are positioned on the described reflecting polarized wafer.
14. light supply apparatus as claimed in claim 8, it is characterized in that, described polarisation assembly is the raster unit of a plurality of equidistant arrangements, described raster unit has a width and a height, described width is greater than 0 nanometer and less than 200 nanometers, described height is greater than 50 nanometers and less than 500 nanometers, and described width is 5%～95% divided by the value that described width adds described spacing sum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100354182A CN102169202A (en) | 2005-09-16 | 2005-09-16 | Brightening module and light source device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100354182A CN102169202A (en) | 2005-09-16 | 2005-09-16 | Brightening module and light source device |
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| CN 200510103143 Division CN1932610A (en) | 2005-09-16 | 2005-09-16 | Brightness enhancement module and light source device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814418A (en) * | 2015-11-27 | 2017-06-09 | 住华科技股份有限公司 | Polarizing plate and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106814418A (en) * | 2015-11-27 | 2017-06-09 | 住华科技股份有限公司 | Polarizing plate and display device |
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Application publication date: 20110831 |