CN102455446A - Brightness enhancement film, optical wavelength conversion wheel assembly with brightness enhancement film and light source - Google Patents
Brightness enhancement film, optical wavelength conversion wheel assembly with brightness enhancement film and light source Download PDFInfo
- Publication number
- CN102455446A CN102455446A CN2011100329509A CN201110032950A CN102455446A CN 102455446 A CN102455446 A CN 102455446A CN 2011100329509 A CN2011100329509 A CN 2011100329509A CN 201110032950 A CN201110032950 A CN 201110032950A CN 102455446 A CN102455446 A CN 102455446A
- Authority
- CN
- China
- Prior art keywords
- wavelength conversion
- brightness enhancement
- enhancement film
- prism
- optical wavelength
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 71
- 230000003287 optical effect Effects 0.000 title claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 51
- 239000012528 membrane Substances 0.000 claims abstract description 26
- 230000005284 excitation Effects 0.000 claims abstract description 14
- 238000004020 luminiscence type Methods 0.000 claims description 19
- 239000000843 powder Substances 0.000 claims description 13
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 4
- 239000002985 plastic film Substances 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 2
- 238000000576 coating method Methods 0.000 claims description 2
- 239000000084 colloidal system Substances 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims description 2
- 238000007731 hot pressing Methods 0.000 claims description 2
- 238000000465 moulding Methods 0.000 claims description 2
- 239000002086 nanomaterial Substances 0.000 claims description 2
- 230000000712 assembly Effects 0.000 claims 2
- 238000000429 assembly Methods 0.000 claims 2
- 230000000694 effects Effects 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 5
- 238000005282 brightening Methods 0.000 description 4
- 239000012780 transparent material Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 3
- 238000009826 distribution Methods 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Images
Landscapes
- Projection Apparatus (AREA)
Abstract
The invention relates to a brightness enhancement film that comprises a plurality of prisms or prism sets, wherein the plurality of prisms or prism sets are arranged regularly on one surface of a transparent membrane; and the other surface of the transparent membrane is a smooth surface. Especially, arrangement of all the prisms or prism sets is in a radial linear shape or in a concentric annular shape as well as the arrangement in the radial linear shape or the concentric annular shape is distributed in an axially symmetrical mode. Besides, the invention also relates to an optical wavelength conversion wheel assembly with the brightness enhancement film. The optical wavelength conversion wheel assembly comprises: an optical wavelength conversion material; a base material, which is used for bearing the optical wavelength conversion material; and a wheel shaft or a fixing device for fixing the wheel shaft. And a central axis of a symmetric axis of the brightness enhancement film is superposed with a central axis of the wheel shaft. Moreover, the invention also provides a light source. The light source is characterized in that: exciting light from an excitation light source is projected to the optical wavelength conversion wheel assembly and then excited light is transmitted. According to the invention, large power light source enables brightness enhancement to be realized at low costs.
Description
Technical field the present invention relates to be used for control the optical device or the device of the color or the direction of light.
But the through characteristic of the not luminous but controlled change light of background technology liquid crystal itself, thereby constantly be able to use in the demonstration field.With LCD panel match be used to provide projection light backlight then under the driving in market, constantly develop toward thin, bright direction.Fig. 1 has illustrated a kind of typical LCD backlight structure: optical plate 14 bottoms have reflecting surface 19, and the light that is sent by sidelight source 18 is led through optical plate 14 and penetrated toward liquid crystal display 20; Brightness enhancement film 10 covers on the light-emitting face of optical plate 14; Can wide-angle emergent light (like light R1) be converted to low-angle light and carry out outgoing; And low-angle light (like light R4) returned utilize again after changing shooting angle through reflection or scattering, thereby improve the luminance brightness of the positive apparent direction of liquid crystal display.
Said brightness enhancement film (BEF, brightness enhancement film) 10 is first disclosed as the U.S. Pat 4,906,070 of Minnesota Mining and Manufacturing Company.This patent spells out the structure of brightness enhancement film, as Fig. 1 comprise one the contact light-emitting face smooth and be positioned at opposite side by the linear array that is arranged in parallel and forms of prism.The patent No. is respectively the improvement structure that 98804889 and 97192045 Chinese patent then discloses above-mentioned brightness enhancement film 10, and one is on original structure, to have increased diffusion layer, and one is the angle of having adjusted the prism in the original structure.
Development along with LED (light emitting diode) technology and light source technology; On the basis in traditional backlight source, increase optical wavelength conversion material; Such as but not limited to fluorescent powder, the backlight that produces the emergent light with predetermined color based on light wavelength conversion is low because of its cost, performance efficiently more receives the favor in market.Said brightness enhancement film 10 can be used to this type of backlight is carried out blast equally; Concrete structure is as shown in Figure 2: pass optical filter 1 from the exciting light of excitation source and shine on the fluorescent powder 2; Convert low-angle light from the wide-angle stimulated luminescence (like R1) of fluorescent powder 2 to through brightness enhancement film 10 and carry out outgoing; Low-angle stimulated luminescence (like R4) then is scattering into the wide-angle emergent light through fluorescent powder again by brightness enhancement film 10 reflections and passes brightness enhancement film 10, and then has improved the fluorescent powder stimulated luminescence in low-angle emergent light total amount.Optical filter 1 selects that preferably stimulated luminescence is had reflex, thereby reflects the light outgoing brightness of the stimulated luminescence of brightness enhancement film 10 dorsad with further raising light source.
The weak point of above-mentioned prior art is: because the linear array of prism, said brightness enhancement film 10 can only carry out blast in the direction of extension perpendicular to single prism, then brightening effect can't be provided along the direction of extension of prism.And along with the continuous development of light source technology toward high-power direction; In order to increase the service life; Existing light source based on light wavelength conversion often makes optical wavelength conversion material rotate with respect to excitation beam, such as but not limited to U.S. Pat 7,547; The scheme that 114 disclosed lighting devices are adopted is to avoid becoming bad because of the lost efficacy light source performance that causes of the long-time illumination of optical wavelength conversion material.Based on the new type light source of relative motion, said brightness enhancement film 10 is also inapplicable concerning this type of, and concrete analysis can be with reference to figure 3a and Fig. 3 b; Illustrate each prism or the prism group that are arranged in parallel with many horizontal lines; Black pane is represented the hot spot of exciting light, when then having brightness enhancement film as shown in Figure 3 on the colour wheel of hypothesis band fluorescent powder, when colour wheel carries brightness enhancement film and turns to the position (the prism trend is vertical with line of reference A) shown in Fig. 3 a; According to above-mentioned blast principle; The distribution of stimulated luminescence should along continuous straight runs (hot spot long side direction) 180 degree full-shapes luminous, (hot spot short side direction) blast is vertically dispersed full-shape less than 180 degree; And when colour wheel carried brightness enhancement film and turns to position shown in Fig. 3 b (the prism trend is parallel with line of reference A), the distribution of stimulated luminescence was then just opposite with Fig. 3 a situation.Therefore, along with colour wheel rotates, the light of light source emergent light distributes and will be in the continuous variation.For a specific projector system or liquid crystal indicator, be to use this light to distribute to be in light source in the continuous variation.
The technical matters that summary of the invention the present invention will solve is the weak point to above-mentioned prior art; And a kind of brightness enhancement film is proposed; Make blast, especially be used in various application systems based on high power light source and this light source of light wavelength conversion applicable to various light sources.
For solving the problems of the technologies described above; Of the present inventionly be contemplated that basically: if will in based on the new type light source of light wavelength conversion, use the existing brightness enhancement film of being with prism array; The direction that brightness is strengthened does not change with rotation; Can attempt changing the mode of the arrangement of prism or prism group, axisymmetric non-parallel arrangement should be a best choice for this reason.
As realizing that the technical scheme that the present invention conceives is, a kind of brightness enhancement film is provided, be included in a plurality of prisms regularly arranged on the one side of transparent membrane or prism group; Each prism in each said prism or the said prism group all has a side to invest on the said transparent membrane; The another side of this transparent membrane is an even surface; Especially, each said prism or the arrangement of prism group on this transparent membrane are radial linear or concentric shape annular, and the rotational symmetry that is arranged in of this radial linear or concentric shape annular distributes.
Specifically, in the such scheme, each said prism or prism group and said transparent membrane are integrated.
In the such scheme, each prism or the prism group that is radial linear arrangement invests side on the said transparent membrane trapezoidal, strip triangular in shape, rectangular or its combination.Each prism or the side of prism group on said transparent membrane that is concentric shape ring shooting ringwise or ring segment.
As the technical scheme that realizes the present invention's design still; A kind of light wavelength conversion wheel assembly is provided; Comprise optical wavelength conversion material and carry the base material of this optical wavelength conversion material, especially, also comprise the described brightness enhancement film of above-mentioned scenarios; The even surface of this brightness enhancement film joins with said optical wavelength conversion material or base material, and has air-gap between this even surface and the optical wavelength conversion material; Also comprise a wheel shaft or be used for fixing the stationary installation of wheel shaft, the axis of symmetry of said brightness enhancement film overlaps with the axis of said wheel shaft.
In the such scheme, said base material is the optical filter of transmission exciting light and reflection stimulated luminescence, and optical wavelength conversion material is applied on this optical filter by the form with coating or pad pasting; Said even surface and said optical wavelength conversion material join and leave said air-gap.
In the such scheme, light wavelength conversion wheel assembly integral body is the wheel sheet, and outer rim comprises each layer structure lock ring lock ring device together.
As the technical scheme that realizes the present invention's design still; A kind of light source is provided, comprises excitation source, especially; Also comprise the described light wavelength conversion wheel assembly of above-mentioned scenarios, and control this light wavelength conversion wheel assembly and said excitation source is in the servomechanism installation in the relative motion; Exciting light from excitation source throws past this light wavelength conversion wheel assembly and then transmits stimulated luminescence.
Adopt above-mentioned each technical scheme, have be easy to realize, the advantage of the low-cost and cost performance height that brought.
Description of drawings Fig. 1 has illustrated the application structure of existing brightness enhancement film on liquid crystal indicator;
Fig. 2 has illustrated existing brightness enhancement film based on the application on the light source of light wavelength conversion;
Result of use after Fig. 3 has illustrated existing brightness enhancement film to rotate with runner, wherein Fig. 3 a and Fig. 3 b have represented two kinds of locational situations respectively;
Fig. 4 has illustrated prism or prism group arrangement mode on the brightness enhancement film of the present invention, and wherein Fig. 4 a has illustrated along the circumference arrangement mode that detours, and Fig. 4 b has illustrated radially linear array;
Fig. 5 has illustrated to adopt the three-dimensional view of a kind of brightness enhancement film embodiment of Fig. 4 a structure;
Fig. 6 a has illustrated the cut-open view on Fig. 5 embodiment diameter in office; Fig. 6 b has illustrated a kind of alternative embodiment of Fig. 6 a;
Fig. 7 has illustrated to adopt the top view of a kind of brightness enhancement film embodiment of Fig. 4 b structure;
Fig. 8 a and Fig. 8 b have illustrated Fig. 7 embodiment view that angle and side are viewed from the elevation angle respectively;
Fig. 9 has illustrated to use the structure of the light wavelength conversion wheel of brightness enhancement film of the present invention;
Figure 10 has illustrated light source to use the light collecting effect of Fig. 9 light wavelength conversion wheel.
Below the embodiment, further set forth the present invention in conjunction with the most preferred embodiment shown in the accompanying drawing.
Brightness enhancement film of the present invention is included in a plurality of prisms regularly arranged on the one side of transparent membrane or prism group; Each prism in each said prism or the said prism group all has a side to invest on the said transparent membrane; The another side of this transparent membrane is an even surface; Each said prism or the arrangement of prism group on this transparent membrane should as shown in Figure 4ly be radial linear or concentric shape annular, and the rotational symmetry that is arranged in of this radial linear or concentric shape annular distributes.Wherein Fig. 4 a has illustrated each prism or prism group along the circumference arrangement mode that detours, and Fig. 4 b has illustrated radially linear array of each prism or prism group.Drift angle relative with above-mentioned side in the said prism is generally acute angle, right angle or obtuse angle, but the convenience of not getting rid of for processing is designed to arc; That is,, make two planes relative perhaps intersect point-blank, perhaps bend to a slick and sly cambered surface in the intersection with said side at the top of said prism or prism group.The prism group refers to comprise the combination of the prism of two or more different size.Each said prism or prism group and said transparent membrane are designed to one-body moldedly will reduce processing cost greatly.
Consider that brightness enhancement film of the present invention mainly is used in rotating disk, said transparent membrane is preferably rounded or annular, and said axisymmetric axis of symmetry is designed to the center of circle through this circle or annular.Fig. 5 has illustrated a kind of embodiment of brightness enhancement film of the present invention, and each prism or prism group are concentric shape ring shooting on said transparent membrane, and each prism is from forming a circle, its invest on the transparent membrane the side ringwise.If each prism among this embodiment is cut into several prisms by branch, then section is ringwise incited somebody to action in the side of each prism of these several prisms.Fig. 6 a is the radial cross-section of Fig. 5 embodiment, and the drift angle of visible each prism is roughly rectangular.Fig. 6 b is a kind of alternative embodiment of Fig. 6 a, and the drift angle of each prism is the obtuse angle.Fig. 6 a or Fig. 6 b be as embodiment, is not exhaustive to brightness enhancement film of the present invention.All brightness enhancement films that meets spirit of the present invention all will fall into protection domain of the present invention.
Fig. 7 is the top view of a kind of brightness enhancement film of employing Fig. 4 b structure.Fig. 8 a and Fig. 8 b have illustrated it from view that the elevation angle and side viewed respectively.Obviously, each prism or the prism group that is radial linear arrangement invests side on the said transparent membrane with (prism is that starting point is outwards arranged with the center of circle) triangular in shape or rectangular trapezoidal (prism is not that starting point is outwards arranged with the center of circle).Even said side can also be a strip, and the strip of different length can make brightness enhancement film density even alternately as far as possible.
Fig. 9 has illustrated to adopt the light wavelength conversion wheel assembly of brightness enhancement film of the present invention; Comprise optical wavelength conversion material 2 and carry the base material 1 of this optical wavelength conversion material; The even surface of brightness enhancement film 3 joins with said optical wavelength conversion material 2 or base material 1, and has air-gap between this even surface and the optical wavelength conversion material 2.The light wavelength conversion wheel assembly also comprises a wheel shaft or is used for fixing the stationary installation of wheel shaft, and the axis of symmetry of said brightness enhancement film overlaps with the axis of said wheel shaft, thereby brightness enhancement film can not influence the blast effect because of the motion of light wavelength conversion wheel assembly.Said optical wavelength conversion material comprises fluorescent powder, nano material or luminescent dye, can combine through one or more transparent material, so that light source has the stable light characteristic that goes out.With but to be not limited to fluorescent powder be example, transparent material can be transparent colloid or transparent glass material, mixes with fluorescent powder or fuses moulding; Also can be the transparent plastic film material, with fluorescent powder hot pressing on this transparent plastic film material.As far as having the moistureproof fluorescent powder that requires, can also come the said fluorescent powder of clamping with above-mentioned any transparent material of mentioning, and can further seal.For ease of the optical wavelength conversion material heat radiation, optical wavelength conversion material preferably distributes with layer in the form of sheets.In addition, for improving the absorptivity of optical wavelength conversion material, can also in optical wavelength conversion material, sneak into scattering particles, such as but not limited to titan oxide particles or alumina particle to light.Said base material can be above-mentioned transparent material, preferably also has certain thermal diffusivity.
For easy to use, the best integral body of light wavelength conversion wheel assembly of the present invention is the wheel sheet, and is as shown in Figure 9, and outer rim comprises each layer structure lock ring lock ring device 5 together.
Adopt the light source of light wavelength conversion wheel assembly of the present invention, comprise excitation source, and control this light wavelength conversion wheel assembly and said excitation source is in the servomechanism installation in the relative motion; Exciting light from excitation source throws past this light wavelength conversion wheel assembly and then transmits stimulated luminescence.Base material 1 among Fig. 9 can also be replaced by optical filter, is used for transmission exciting light and reflection stimulated luminescence, and strengthening the outgoing brightness of stimulated luminescence, optical wavelength conversion material is by to apply or the form of pad pasting is applied on this optical filter; Said even surface and optical wavelength conversion material join and leave said air-gap.Perhaps, with an optical filter be arranged on said base material 1 below, be used for the transmission exciting light and the reflection stimulated luminescence.Further, can also on the even surface of said brightness enhancement film, be coated with filter membranous layer, be used for reflecting exciting light and transmission stimulated luminescence.This filter membranous layer plays the effect that is close with said optical filter, perhaps helps to improve light source to the utilization factor of exciting light with to the exitance of stimulated luminescence with said optical filter.
Said excitation source can be a Sony ericsson mobile comm ab, such as but not limited to LED or the Laser Devices of sending out UV light.Said servomechanism installation perhaps drives said excitation source and detours, and the wheel shaft that perhaps drives the light wavelength conversion wheel assembly drives the rotation of light wavelength conversion wheel assembly; Perhaps drive the rotation of light wavelength conversion wheel assembly through gear drive.
In order to reach predetermined brightening effect, in the light wavelength conversion wheel assembly or light source of band brightness enhancement film of the present invention, can also include two or more brightness enhancement film simultaneously; They have different prism arrangement rules, and for example the brightness enhancement film among Fig. 93 adopts Fig. 5 embodiment, and second brightness enhancement film 4 adopts Fig. 7 embodiment; Through experiment; Its result of use is shown in figure 10, and as if the collection half-angle of representing light-emitting phosphor with horizontal ordinate, ordinate is represented total luminous energy of in corresponding collection angle, collecting among the figure; Can find out: when collection angle very big; As be higher than 70 when spending, because the effect of energy conservation uses brightness enhancement film not have advantage; Yet because the collection efficiency of wide-angle light is low; Simultaneously lighting angle also receive projection chip area in the optical projection system restriction and can not be too big; The collection angle that is used for the light source of optical projection system often is designed to 40 and spends to 60 degree, and at 40 degree places, use one deck brightness enhancement film can make the gross energy of collecting strengthen 57%; Two-layerly then can strengthen 51%, brightening effect is very obvious; And, use the brightening effect of one deck or two-layer brightness enhancement film more obvious for light source less than 40 degree light collection angle.
Claims (14)
1. a brightness enhancement film is included in a plurality of prisms regularly arranged on the one side of transparent membrane or prism group; Each prism in each said prism or the said prism group all has a side to invest on the said transparent membrane; The another side of this transparent membrane is an even surface; It is characterized in that:
Each said prism or the arrangement of prism group on this transparent membrane are radial linear or concentric shape annular, and the rotational symmetry that is arranged in of this radial linear or concentric shape annular distributes.
2. brightness enhancement film according to claim 1 is characterized in that:
At the top of said prism or prism group, perhaps intersect point-blank on two planes relative with said side, perhaps bends to a slick and sly cambered surface in the intersection.
3. brightness enhancement film according to claim 1 is characterized in that:
Said transparent membrane is rounded or annular, and said axisymmetric axis of symmetry is through the center of circle of this circle or annular.
4. brightness enhancement film according to claim 1 is characterized in that:
Each said prism or prism group and said transparent membrane are integrated.
5. brightness enhancement film according to claim 1 is characterized in that:
Each prism or the prism group that is radial linear arrangement invests said side on the said transparent membrane trapezoidal, strip triangular in shape, rectangular or its combination.
6. brightness enhancement film according to claim 1 is characterized in that:
Each prism or the said side of prism group on said transparent membrane that is concentric shape ring shooting ringwise or ring segment.
7. light wavelength conversion wheel assembly comprises optical wavelength conversion material and carries the base material of this optical wavelength conversion material, it is characterized in that:
Comprise that also the even surface of this brightness enhancement film joins with said optical wavelength conversion material or base material, and has air-gap between this even surface and the optical wavelength conversion material like each described brightness enhancement film of claim 1～6;
Also comprise a wheel shaft or be used for fixing the stationary installation of wheel shaft, the axis of symmetry of said brightness enhancement film overlaps with the axis of said wheel shaft.
8. light wavelength conversion wheel assembly according to claim 7 is characterized in that:
Said optical wavelength conversion material comprises fluorescent powder, nano material or luminescent dye.
9. light wavelength conversion wheel assembly according to claim 7 is characterized in that:
Said base material is transparent colloid or transparent glass material, mixes with optical wavelength conversion material or fuses moulding; Or be the transparent plastic film material, said optical wavelength conversion material by hot pressing on this transparent plastic film material.
10. light wavelength conversion wheel assembly according to claim 7 is characterized in that:
Also comprise optical filter,, be used for transmission exciting light and reflection stimulated luminescence at the said optical wavelength conversion material another side of brightness enhancement film dorsad.
11., it is characterized in that according to claim 10 or 7 described light wavelength conversion wheel assemblies:
On the even surface of said brightness enhancement film, be coated with filter membranous layer, be used for reflecting exciting light and transmission stimulated luminescence.
12. light wavelength conversion wheel assembly according to claim 7 is characterized in that:
Said base material is the optical filter of transmission exciting light and reflection stimulated luminescence, and optical wavelength conversion material is applied on this optical filter by the form with coating or pad pasting; Said even surface and said optical wavelength conversion material join and leave said air-gap.
13., it is characterized in that according to claim 7,9～12 each described light wavelength conversion wheel assemblies:
This light wavelength conversion wheel assembly integral body is the wheel sheet, and outer rim comprises each layer structure lock ring lock ring device together.
14. a light source comprises excitation source; It is characterized in that:
Also comprise like each described light wavelength conversion wheel assembly of claim 6～11, and control this light wavelength conversion wheel assembly and said excitation source is in the servomechanism installation in the relative motion; Exciting light from excitation source throws past this light wavelength conversion wheel assembly and then transmits stimulated luminescence.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110032950.9A CN102455446B (en) | 2011-01-28 | 2011-01-28 | Brightness enhancement film, optical wavelength conversion wheel assembly with brightness enhancement film and light source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110032950.9A CN102455446B (en) | 2011-01-28 | 2011-01-28 | Brightness enhancement film, optical wavelength conversion wheel assembly with brightness enhancement film and light source |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102455446A true CN102455446A (en) | 2012-05-16 |
| CN102455446B CN102455446B (en) | 2014-11-12 |
Family
ID=46038851
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110032950.9A Active CN102455446B (en) | 2011-01-28 | 2011-01-28 | Brightness enhancement film, optical wavelength conversion wheel assembly with brightness enhancement film and light source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102455446B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949070A (en) * | 2014-03-27 | 2015-09-30 | 玉晶光电股份有限公司 | Spectrum conversion assembly and manufacturing method thereof |
| CN105824065A (en) * | 2015-01-08 | 2016-08-03 | 深圳市绎立锐光科技开发有限公司 | Multi-segment scattering wheel and manufacturing method thereof, light source system and projection system |
| CN111357010A (en) * | 2019-06-28 | 2020-06-30 | 深圳市汇顶科技股份有限公司 | A enhancement film for optical fingerprint sensor under screen |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1386254A (en) * | 2000-07-31 | 2002-12-18 | 日本精机株式会社 | Back light illumination device |
| CN1959490A (en) * | 2005-11-02 | 2007-05-09 | 群康科技(深圳)有限公司 | Backlight module, liquid crystal display device of using the backlight module |
| CN101805602A (en) * | 2009-02-18 | 2010-08-18 | 绎立锐光科技开发(深圳)有限公司 | Encapsulating method and structure of optical wavelength conversion material |
| CN101836160A (en) * | 2007-07-30 | 2010-09-15 | 绎立锐光科技开发公司 | Multicolor illumination device using moving plate with wavelength conversion materials |
-
2011
- 2011-01-28 CN CN201110032950.9A patent/CN102455446B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1386254A (en) * | 2000-07-31 | 2002-12-18 | 日本精机株式会社 | Back light illumination device |
| CN1959490A (en) * | 2005-11-02 | 2007-05-09 | 群康科技(深圳)有限公司 | Backlight module, liquid crystal display device of using the backlight module |
| CN101836160A (en) * | 2007-07-30 | 2010-09-15 | 绎立锐光科技开发公司 | Multicolor illumination device using moving plate with wavelength conversion materials |
| CN101805602A (en) * | 2009-02-18 | 2010-08-18 | 绎立锐光科技开发(深圳)有限公司 | Encapsulating method and structure of optical wavelength conversion material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104949070A (en) * | 2014-03-27 | 2015-09-30 | 玉晶光电股份有限公司 | Spectrum conversion assembly and manufacturing method thereof |
| CN105824065A (en) * | 2015-01-08 | 2016-08-03 | 深圳市绎立锐光科技开发有限公司 | Multi-segment scattering wheel and manufacturing method thereof, light source system and projection system |
| CN111357010A (en) * | 2019-06-28 | 2020-06-30 | 深圳市汇顶科技股份有限公司 | A enhancement film for optical fingerprint sensor under screen |
| CN111357010B (en) * | 2019-06-28 | 2023-09-22 | 深圳市汇顶科技股份有限公司 | Enhancement film for an off-screen optical fingerprint sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102455446B (en) | 2014-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108027130B (en) | Large area light source and large area luminaire | |
| CN101539270B (en) | Method for converting light wavelength with emission angle selectivity characteristic | |
| EP1574780B1 (en) | Light guide plate, illuminating device using same, area light source and display | |
| TWI290701B (en) | Device to generate a beam light-current | |
| KR101561099B1 (en) | Light guide plate and edge light backlight device | |
| CN103777447B (en) | A kind of light-source system, Wavelength converter and relevant projecting system | |
| CN102566139B (en) | LED (Light-Emitting Diode) backlight display equipment | |
| CN101694277B (en) | Backlight module and beam splitter thereof | |
| EP3589885B1 (en) | Sunlight-based large area light source and large area luminaire | |
| CN101556023A (en) | LED light source with wide-angle lens | |
| CN201425257Y (en) | Led light source device | |
| CN101561085A (en) | Wide-angle LED light source | |
| CN209325530U (en) | A kind of Novel panel lamp | |
| KR20110136645A (en) | Backlight unit and liquid crystal display device having the same | |
| CN205281104U (en) | Fluorescence wheel and projecting apparatus | |
| CN105242457A (en) | Light guide device with high color saturation | |
| CN102455446B (en) | Brightness enhancement film, optical wavelength conversion wheel assembly with brightness enhancement film and light source | |
| TW201037416A (en) | Backlight module | |
| EP2223353A1 (en) | Side emitting device with hybrid top reflector | |
| EP2450742A1 (en) | Backlight source and thinning method for the same and liquid crystal device with the same | |
| JP4236740B2 (en) | Flat lighting device | |
| JP2013137988A (en) | Lateral irradiation surface type light-emitting module | |
| CN209325692U (en) | A kind of fluorescent lamp | |
| CN111381358B (en) | Wavelength conversion device, light emitting device, and projection device | |
| CN209325466U (en) | A kind of bulb lamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 518057, 3 floor, Fangda building, South District, Nanshan District hi tech Zone, Guangdong, Shenzhen Applicant after: YLX Inc. Address before: 518057, 3 floor, Fangda building, South District, Nanshan District hi tech Zone, Guangdong, Shenzhen Applicant before: YLX (CHINA) Corp. |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: YILI RUIGUANG SCIENCE AND TECHNOLOGY DEVELOPMENT (SHENZHEN) CO., LTD. TO: SHENZHEN YILI RUIGUANG TECHNOLOGY DEVELOPMENT CO., LTD. |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171102 Address after: 518055 Guangdong city of Shenzhen province Nanshan District Xili town tea light road Shenzhen city integrated circuit design and application of Industrial Park 401 Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518057, 3 floor, Fangda building, South District, Nanshan District hi tech Zone, Guangdong, Shenzhen Patentee before: YLX Inc. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: APPOTRONICS Corp.,Ltd. Address before: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee before: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 518000 20-22, 20-22 headquarters building, 63 high tech Zone, Xuefu Road, Nanshan District, Guangdong Province, Guangdong. Patentee after: SHENZHEN GUANGFENG TECHNOLOGY Co.,Ltd. Address before: 518055 Guangdong province Shenzhen Nanshan District Xili town Cha Guang road Shenzhen integrated circuit design application Industrial Park 401 Patentee before: APPOTRONICS Corp.,Ltd. |