CN104375226A - Diffusion type brightened reflecting film and backlight device - Google Patents
Diffusion type brightened reflecting film and backlight device Download PDFInfo
- Publication number
- CN104375226A CN104375226A CN201410624696.5A CN201410624696A CN104375226A CN 104375226 A CN104375226 A CN 104375226A CN 201410624696 A CN201410624696 A CN 201410624696A CN 104375226 A CN104375226 A CN 104375226A
- Authority
- CN
- China
- Prior art keywords
- diffusion
- coating
- blast
- reflectance coating
- diffusion type
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
- G02B5/0825—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only
- G02B5/0841—Multilayer mirrors, i.e. having two or more reflecting layers the reflecting layers comprising dielectric materials only comprising organic materials, e.g. polymers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/22—Reflectors for light sources characterised by materials, surface treatments or coatings, e.g. dichroic reflectors
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Laminated Bodies (AREA)
Abstract
The invention discloses a diffusion type brightened reflecting film and a backlight device. The diffusion type brightened reflecting film is provided with a reflecting base material layer, a brightened diffusion coating is arranged on one surface of the reflecting base material layer, and the other surface of the reflecting base material layer is provided with a bonding-preventing coating. The brightened diffusion coating includes organic particles with the particle size of 15-25 microns and the mass percent of 80-90 percent and organic particles with the particle size of 0.5-6 microns and the mass percent of 10-20 percent. The thickness of the brightened diffusion coating is 5/10-6/10 of the maximum diameter of diffusion particles. According to the diffusion type brightened reflecting film and the backlight device, the using of diffusion films can be reduced, the brightness of the backlight device is improved, when the diffusion type brightened reflecting film is applied to an LCD display, the using number of diaphragms can be reduced, and the energy-saving effect is achieved.
Description
Technical field
The present invention relates to field of liquid crystal display, particularly a kind of backlight module diffusion type blast used reflectance coating and back lighting device.
Background technology
Along with liquid crystal display (LCD, Liquid Crystal Display) development, drive various new technology flourish, liquid crystal display product is current most popular display technique product, from various household electrical appliances, automobile, train, aircraft, communication and industrial products etc., as long as need the place of display, LCD product is main flow.
Because LCD is passive light-emitting device, backlight is the light source feed unit that LCD is indispensable.The main member of backlight comprises: light source (necessary), light guide plate or diffuser plate (alternative), reflectance coating (necessary), diffusion barrier (optional), bright enhancement film (optional), composite membrane (optional), prism film (optional) etc.Current light source is light emitting diode (LED, Light-Emitting Diode) mainly, according to the difference of distribution of light sources position, can be divided into straight-down negative and side-light type back light.Along with LCD is to the future development such as energy-conservation, lightening, to reduce costs, the trend that the blooming piece inside backlight module develops to multifunctional direction is inevitable.A large amount of composite membrane used is exactly the effect simultaneously with prism film and diffusion barrier at present, in some machines, composite membrane can replace prism film and diffusion barrier, backlight module component is reduced, what become is lightening, material cost and processing cost all can reduce simultaneously, well facilitate the development of product.But composite membrane can't substitute the screening effect of diffusion barrier completely, in side-light type back light and direct-light-type backlight, also there is the problem such as LED shadow, bright dark inequality (HOT SPOT).Current solution mainly hides lamp shadow and bright dark inequality by the diffusion barrier increasing a slice haze, and this can bring the increase of material cost and assembly cost and the loss of brightness.
If allow reflectance coating also have diffusion function, not only can reduce the use of diffusion barrier, reduce costs, the brightness of backlight can also be improved.Constantly there is now each producer to propose to be coated with diffusion layer on the reflecting film to improve the diffusion function of reflectance coating, but do not consider brightness problem due to the diffusion layer coating of coating, the problems such as the back light source brightness making to use this product is on the low side.Ye You producer passes through stretch processes, adopt and three-layer co-extrudedly add inorganic diffusion particle on top layer, reach the function that light is spread, but because light diffusion function and reflection function are only considered in this kind of design, do not consider that diffusion layer also can carry out blast design, make to use the back light source brightness of this product not high yet.
Summary of the invention
Technical matters to be solved by this invention is the weak point existed for prior art, provides a kind of diffusion type blast reflectance coating and back lighting device thereof.
Another technical matters to be solved by this invention is to provide a kind of back lighting device using above-mentioned diffusion barrier.
Solving the problems of the technologies described above adopted technical scheme is:
A kind of diffusion type blast reflectance coating, there is reflective substrate layer, blast diffusion coating is provided with on a surface of reflective substrate layer, anti-stick coating is provided with on another surface of reflective substrate layer, wherein, blast diffusion coating contains the organic filler of following particle diameter and mass percent: 15 ~ 25 μm: 80 ~ 90%; 0.5 ~ 6 μm: 10 ~ 20%; The thickness of blast diffusion coating is 5/10 ~ 6/10 of diffusion particle maximum gauge.
The refractive index of described blast diffusion coating is 1.4 ~ 1.7, and organic filler refractive index is 1.4 ~ 1.7.
Organic filler random alignment in described blast diffusion coating, coating density is every square millimeter 0.5 ~ 30,000.
Described organic filler can select one or more compositions of PBMA, PMMA or nylon.
Described blast diffusion coating material therefor is one or more of crylic acid resin, polyurethanes and propylene polyalcohols.
Antistatic agent is added with in described blast diffusion coating.
Described reflective substrate layer adopts polyethylene terephthalate, and wherein add TiO 2 particles, alundum (Al2O3), silicon dioxide granule, the reflectivity of reflective substrate layer is more than 97%.
In described anti-stick layer, scattering device has non-touching anti-stick particle, and the thickness of anti-adhesive coating is anti-bonding particle maximum sized 1/2 ~ 2/3.
The diameter of described anti-bonding particle is 3 ~ 7 μm, and coating density is 50 ~ 500 every square millimeter.
Described anti-bonding coating material is one or more of crylic acid resin, polyurethanes and propylene polyalcohols.
Antistatic agent is added with in described anti-adhesive coating.
A kind of back lighting device, comprise for the light source of luminescence, reflectance coating, light guide plate or diffuser plate and frame, composite membrane or prismatic lens, described reflectance coating is above-mentioned diffusion type blast reflectance coating.
Compared with prior art, the present invention has the following advantages:
1. the present invention by being coated with blast diffusion layer on conventional reflector film, conventional reflector film is made not only to have the effect of reflection ray, by the birefringence of light in blast diffusion layer, the effect of disperse light can be reached, under similarity condition, improve the optical brightness homogeneity of back lighting device than conventional reflector film.
2. the present invention by being coated with blast diffusion layer on conventional reflector film, by the particle diameter of organic filler and the selection of component, and and the thickness of this layer and the collocation of organic filler particle diameter, most diffusion particle is made to protrude from coating, light arrives reflection horizon through increment diffusion layer and reflects away, blast diffusion layer is equivalent to concavees lens for incident light, is equivalent to convex lens for reflected light.Can divergent rays during light, can collected light during light reflection, reach brightening effect.Than using the reflectance coating adding inorganic diffusion particle, there is higher brightness.
3. the present invention by being coated with blast diffusion layer and anti-stick layer on reflective substrate layer, and the selection of each layer resin used, can make blast diffusion layer and anti-stick layer surface pencil hardness between 1H to 3H, diaphragm is not easily scratched in Punching Process, thus the generation of friction scuffing unfavorable condition can be reduced, meet the requirement of the liquid crystal display of high-precision refinement.
4., after back lighting device uses diffusion type blast reflectance coating of the present invention, need not separately establish diffusion barrier just can reach corresponding covering effect.Covering is required that higher back lighting device also can reduce the usage quantity of diffusion barrier or improve covering effect.Simultaneously because diffusion barrier of the present invention also has brightening effect, compare the brightness that the other types reflectance coating with diffusion effect also can increase back lighting device.When being applied to LCD display, diaphragm usage quantity can being reduced, reach energy-saving effect.
Embodiment
Diffusion type blast reflectance coating of the present invention is made up of blast diffusion layer, reflective substrate layer and anti-stick layer.
Blast diffusion layer anchors at reflective substrate layer surface by the coating solution containing circular light diffusion particle and resin and is formed, wherein, resin can select in known crylic acid resin, polyurethanes, propylene polyalcohols one or more composition, organic filler can select PBMA(Vinalac 5920), PMMA(polymethylmethacrylate) or nylon one or more composition.
The diffusion effect not only had to make diffusion layer but also the brightening effect had, adopt two kinds of particle diameter diffusion particles by following mass percent composition, and 15 ~ 25 μm: 80 ~ 90%; 0.5 ~ 6 μm: 10 ~ 20%, wherein small particle diameter diffusion particle can enhanced diffustion layer to the diffusion effect of light, Large stone diffusion particle, protrudes the brightening effect that can to play outside coating light.
In order to the reflecting effect making diffusion type blast reflectance coating have, select the reflective substrate layer of light reflectivity more than 97%, reflective substrate layer adopts three-layer co-extruded two-way stretch mode to produce, its sandwich layer is added with TiO 2 particles, alundum (Al2O3), the reflecting materials such as silicon dioxide granule, wherein polyethylene terephthalate mass percentage is 80% ~ 90%, reflecting material particle diameter is 0.1 ~ 3 μm, its mass percentage is 5% ~ 15%, assisted resin and auxiliary agent comprise spreading agent, stabilizing agent, UV absorbers, MBS resin etc., its mass percentage is 5-10%.The thickness of reflective substrate layer is 100 μm to 300 μm.
Deficient manufacturing procedure is reduced, coating anti-stick layer in order to make diffusion type blast reflectance coating cutting, in assembling process.Wherein anti-stick layer is owing to adopting electrostatic prevention process, cut with assembling process in can reduce absorption to ambient dust, foreign matter etc., avoid when superposing the pollution of diffusion layer and transfer.The anti-stick particle protruded also can avoid diffusion type blast reflectance coating producing the film arch distortion of locally adsorbing and causing and causing because factor in thermodynamics is different with the aluminium sheet in back lighting device, and then affects the quality of backlight.
Auxiliary agent can be added: comprise levelling agent, can impel coating fluid in drying and forming-film process, form smooth, smooth, a uniform coating in blast diffusion layer of the present invention and anti-stick layer; Antistatic agent, the surface impedance of coating surface can be reduced, reduce the absorption affinity to dust in environment.
Blast diffusion layer of the present invention and anti-stick layer are by resin, particle, auxiliary agent and suitable solvent are deployed into coating fluid, the surface of base material is coated by stick coating method, scraper for coating method, spraying process, gravure coating process, micro-gravure coating process etc., through super-dry, be solidified to form.Anti-stick layer can adopt ultraviolet light polymerization mode.
Back lighting device of the present invention, is made up of, meanwhile, in order to the brightness promoting backlight generally comprises prismatic lens or composite membrane a slice diffusion type blast of the present invention reflectance coating, light guide plate (or diffuser plate), light source etc.Back lighting device of the present invention is because employing diffusion type blast reflectance coating of the present invention, compare common reflectance coating and there is the shadow effect that better disappears, compare the reflectance coating with diffusion effect, owing to there is higher brightness through particular design, use in LCD display and can obtain good image quality and brightness.
Below by way of enforcement, the present invention will be described in more detail, but embodiments of the present invention are not limited to following embodiment.
Embodiment 1
Respectively according to material proportion in table 1 and table 2, obtain blast diffusion layer coating fluid and anti-stick layer coating fluid respectively by stirring.Above coating fluid being coated in respectively thickness is 188 μm, reflectivity is the two sides of the reflective substrate layer of 98% and curing molding, it is every square millimeter about 10000 by diffusion particle quantity in measure control coating, to form thickness be respectively blast diffusion layer, the thickness of 13 μm is the anti-stick layer of 3 μm, forms diffusion type blast reflectance coating together with reflective substrate layer.
Table 1 blast diffusion coating coating fluid composition table
Table 2 anti-stick layer coating fluid composition table
Embodiment 2
Use the reflective substrate layer identical with embodiment 1, identical anti-stick layer, blast diffusion layer coating fluid presses table 3 proportioning, is every square millimeter about 10000, obtains the diffusion type blast reflectance coating of the present embodiment by diffusion particle quantity in coating measure control coating.Wherein the thickness of blast diffusion layer is 13 μm.
Table 3 blast diffusion layer coating fluid composition table
。
Embodiment 3
Use the reflective substrate layer identical with embodiment 1, identical anti-stick coating, blast diffusion layer coating fluid presses table 4 proportioning, is every square millimeter about 5000, obtains the diffusion type blast reflectance coating of the present embodiment by diffusion particle quantity in coating measure control coating.Wherein the thickness of blast diffusion layer is 8 μm.
Table 4 blast diffusion coating coating fluid composition table
。
Embodiment 4
Use the reflective substrate layer identical with embodiment 1, identical anti-stick coating, blast diffusion layer coating fluid presses table 5 proportioning, is every square millimeter about 30000, obtains the diffusion type blast reflectance coating of the present embodiment by diffusion particle quantity in coating measure control coating.Wherein the thickness of blast diffusion layer is 8 μm.
Table 5 blast diffusion coating coating fluid composition table
。
Embodiment 5
Use the reflective substrate layer identical with embodiment 1, identical anti-stick coating, blast diffusion layer coating fluid presses table 6 proportioning, is every square millimeter about 15000, obtains the diffusion type blast reflectance coating of the present embodiment by diffusion particle quantity in coating measure control coating.Wherein the thickness of blast diffusion layer is 10 μm.
Table 6 blast diffusion layer coating fluid composition table
comparative example 1
Adopt the reflective substrate layer of embodiment 1 as a reflection measurement sample.
Comparative example 2
Adopt the reflectance coating with diffusion function that market has had as a reflection measurement sample.
Evaluation method:
By the reflected sample of the diffusion type blast antireflection film sample of embodiment 1 to embodiment 5 and comparative example 1, comparative example 2, cut into identical size.A back lighting device, comprise light source, light guide plate, composite membrane 2, upper diffusion sheet, and 1 above-mentioned reflected sample, when other conditions are constant, test 9 optical brightnesses of the back lighting device under different reflection diaphragm condition, homogeneity, wherein the method for testing of brightness adopts BM-7A instrument, measuring angle is 1 °, and mensuration vertical range is 500mm, and the result of homogeneity is that the ratio of mensuration 9 brightness minimum value and maximal value (Strehl ratio) is multiplied by 100% again.And the shadow effect that disappears of back lighting device under people's visual inspection contrast different light rays diaphragm.Contrast test the results are shown in Table 7.
Table 7 different reflection diaphragm optical contrast test result and the shadow effect that disappears
Can find out in table 7, embodiment 1, embodiment 2 are under identical particle coating quantity, and a bit, its back lighting device homogeneity that particle diameter is little is slightly good for large its back lighting device brightness height of particle diameter.Embodiment 3, embodiment 4 are under identical proportioning, and its homogeneity that coated particle quantity is large is dominant, and the shadow effect that disappears is fine.And the proportioning of embodiment 5 can take into account certain brightness and uniformity requirement.Comparative example 1 illustrates that the conventional reflector film not being coated with diffusion layer is to divergence of beam poor effect, do not possess the covering effect hidden, comparative example 2 illustrates that diffusion type reflectance coating is not owing to considering brightening effect, although its covering effect is fine, the brightness of backlight is unsatisfactory.
Claims (10)
1. a diffusion type blast reflectance coating, there is reflective substrate layer, it is characterized in that, blast diffusion coating has been provided with on a surface of reflective substrate layer, anti-stick coating is provided with on another surface of reflective substrate layer, wherein, blast diffusion coating contains the organic filler of following particle diameter and mass percent: 15 ~ 25 μm: 80 ~ 90%; 0.5 ~ 6 μm: 10 ~ 20%; The thickness of blast diffusion coating is 5/10 ~ 6/10 of diffusion particle maximum gauge.
2. diffusion type blast reflectance coating according to claim 1, it is characterized in that, the refractive index of described blast diffusion coating is 1.4 ~ 1.7, and organic filler refractive index is 1.4 ~ 1.7.
3. diffusion type blast reflectance coating according to claim 2, is characterized in that, the organic filler random alignment in described blast diffusion coating, and coating density is every square millimeter 0.5 ~ 30,000.
4. diffusion type blast reflectance coating according to claim 3, is characterized in that, described organic filler selects one or more compositions of PBMA, PMMA or nylon.
5. diffusion type blast reflectance coating according to claim 4, is characterized in that, described blast diffusion coating material therefor is one or more of crylic acid resin, polyurethanes and propylene polyalcohols.
6. diffusion type blast reflectance coating according to claim 5, it is characterized in that, described reflective substrate layer, adopt polyethylene terephthalate, wherein add TiO 2 particles, alundum (Al2O3), silicon dioxide granule, the reflectivity of reflective substrate layer is more than 97%.
7. diffusion type blast reflectance coating according to claim 6, it is characterized in that, in described anti-stick layer, scattering device has non-touching anti-stick particle, and the thickness of anti-adhesive coating is anti-bonding particle maximum sized 1/2 ~ 2/3.
8. diffusion type blast reflectance coating according to claim 7, is characterized in that, the diameter of described anti-bonding particle is 3 ~ 7 μm, and coating density is 50 ~ 500 every square millimeter.
9. diffusion type blast reflectance coating according to claim 8, is characterized in that, described anti-bonding coating material is one or more of crylic acid resin, polyurethanes and propylene polyalcohols; Antistatic agent is added with in described blast diffusion coating and anti-adhesive coating.
10. a back lighting device, comprise for the light source of luminescence, reflectance coating, light guide plate or diffuser plate and frame, composite membrane or prismatic lens, it is characterized in that, described reflectance coating is diffusion type blast reflectance coating described in claim 1 ~ 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624696.5A CN104375226B (en) | 2014-11-09 | 2014-11-09 | A kind of diffusion type blast reflectance coating and back lighting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410624696.5A CN104375226B (en) | 2014-11-09 | 2014-11-09 | A kind of diffusion type blast reflectance coating and back lighting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104375226A true CN104375226A (en) | 2015-02-25 |
| CN104375226B CN104375226B (en) | 2017-12-26 |
Family
ID=52554252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410624696.5A Active CN104375226B (en) | 2014-11-09 | 2014-11-09 | A kind of diffusion type blast reflectance coating and back lighting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104375226B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105353560A (en) * | 2015-12-04 | 2016-02-24 | 武汉华星光电技术有限公司 | Reflecting liquid crystal display |
| CN106680919A (en) * | 2015-11-06 | 2017-05-17 | 宁波长阳科技股份有限公司 | High-luminance diffusion silver-plated reflective film and preparation method thereof |
| CN106680912A (en) * | 2016-12-14 | 2017-05-17 | 合肥乐凯科技产业有限公司 | High-haze optical diffusion barrier |
| CN106833441A (en) * | 2015-12-04 | 2017-06-13 | 宁波长阳科技股份有限公司 | A kind of glue, coating fluid and optical compound film |
| CN107843945A (en) * | 2017-11-06 | 2018-03-27 | 张永宏 | A kind of stable light diffusing sheet of light resistance |
| CN108445673A (en) * | 2018-03-02 | 2018-08-24 | 张家港康得新光电材料有限公司 | A kind of optic film structure and backlight assembly |
| CN108467507A (en) * | 2018-04-16 | 2018-08-31 | 张家港康得新光电材料有限公司 | A kind of cloudy surface film and preparation method thereof and mist degree adjusting method |
| CN109461376A (en) * | 2018-11-23 | 2019-03-12 | 合肥京东方光电科技有限公司 | A kind of backlight module and preparation method thereof and display device |
| CN115016168A (en) * | 2021-12-31 | 2022-09-06 | 东莞市托普莱斯光电技术有限公司 | High-brightness silver-plated reflective film for backlight module |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102436019A (en) * | 2011-10-29 | 2012-05-02 | 合肥乐凯科技产业有限公司 | Optical upper diffusion film and light crystal display backlight source using same |
| US20120314287A1 (en) * | 2010-12-31 | 2012-12-13 | Kolon Industries, Inc. | Luminance enhancement film and backlight unit comprising the same |
| CN103163585A (en) * | 2011-12-08 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Compound type light guiding module and manufacturing method thereof |
| CN103345012A (en) * | 2013-07-31 | 2013-10-09 | 宁波激智科技股份有限公司 | Brightening diffusion film and preparation method thereof |
-
2014
- 2014-11-09 CN CN201410624696.5A patent/CN104375226B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120314287A1 (en) * | 2010-12-31 | 2012-12-13 | Kolon Industries, Inc. | Luminance enhancement film and backlight unit comprising the same |
| CN102436019A (en) * | 2011-10-29 | 2012-05-02 | 合肥乐凯科技产业有限公司 | Optical upper diffusion film and light crystal display backlight source using same |
| CN103163585A (en) * | 2011-12-08 | 2013-06-19 | 鸿富锦精密工业（深圳）有限公司 | Compound type light guiding module and manufacturing method thereof |
| CN103345012A (en) * | 2013-07-31 | 2013-10-09 | 宁波激智科技股份有限公司 | Brightening diffusion film and preparation method thereof |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106680919B (en) * | 2015-11-06 | 2019-05-14 | 宁波长阳科技股份有限公司 | A kind of high brightness diffused silvered reflective film and preparation method thereof |
| CN106680919A (en) * | 2015-11-06 | 2017-05-17 | 宁波长阳科技股份有限公司 | High-luminance diffusion silver-plated reflective film and preparation method thereof |
| CN106833441B (en) * | 2015-12-04 | 2019-02-01 | 宁波长阳科技股份有限公司 | A kind of glue, coating fluid and optical compound film |
| WO2017092125A1 (en) * | 2015-12-04 | 2017-06-08 | 武汉华星光电技术有限公司 | Reflective liquid crystal display |
| CN106833441A (en) * | 2015-12-04 | 2017-06-13 | 宁波长阳科技股份有限公司 | A kind of glue, coating fluid and optical compound film |
| US10139674B2 (en) | 2015-12-04 | 2018-11-27 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Reflective liquid crystal display device |
| CN105353560A (en) * | 2015-12-04 | 2016-02-24 | 武汉华星光电技术有限公司 | Reflecting liquid crystal display |
| CN106680912A (en) * | 2016-12-14 | 2017-05-17 | 合肥乐凯科技产业有限公司 | High-haze optical diffusion barrier |
| CN106680912B (en) * | 2016-12-14 | 2019-07-26 | 合肥乐凯科技产业有限公司 | A kind of haze optical diffusion |
| CN107843945A (en) * | 2017-11-06 | 2018-03-27 | 张永宏 | A kind of stable light diffusing sheet of light resistance |
| CN108445673A (en) * | 2018-03-02 | 2018-08-24 | 张家港康得新光电材料有限公司 | A kind of optic film structure and backlight assembly |
| CN108467507A (en) * | 2018-04-16 | 2018-08-31 | 张家港康得新光电材料有限公司 | A kind of cloudy surface film and preparation method thereof and mist degree adjusting method |
| CN109461376A (en) * | 2018-11-23 | 2019-03-12 | 合肥京东方光电科技有限公司 | A kind of backlight module and preparation method thereof and display device |
| CN115016168A (en) * | 2021-12-31 | 2022-09-06 | 东莞市托普莱斯光电技术有限公司 | High-brightness silver-plated reflective film for backlight module |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104375226B (en) | 2017-12-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104375226A (en) | Diffusion type brightened reflecting film and backlight device | |
| CN103592706B (en) | A kind of sprayed film and backlight module thereof being applied to large-sized monitor | |
| KR100884658B1 (en) | Optical thin sheet | |
| CN100356247C (en) | Optical thin sheet | |
| TWI437278B (en) | Anisotropic light-diffusing film, anisotropic light-diffusing film laminated sheet and production method thereof | |
| CN102540291B (en) | Preparation method of optical diffusion film | |
| CN103345011B (en) | A kind of diffusion barrier being applied to side-light backlight module | |
| CN106680919B (en) | A kind of high brightness diffused silvered reflective film and preparation method thereof | |
| KR20110043641A (en) | Anisotropic light-diffusing film, anisotropic light-diffusing laminate, anisotropic light-reflecting laminate, and uses thereof | |
| CN101762904A (en) | Optical film compound | |
| CN102042565A (en) | Brightness enhancement film, backlight module having same and manufacturing method of brightness enhancement film | |
| CN101329417A (en) | Voided optical diffuser film with beads on a surface | |
| CN102834742A (en) | Light-diffusing film for led lamp | |
| CN101630092A (en) | Optical diaphragm and backlight module applying same | |
| CN106118442B (en) | A kind of optical film cold coating and its application | |
| CN101630093A (en) | Optical diaphragm and backlight module using same | |
| CN209148898U (en) | If the diffusion barrier and backlight module and liquid crystal module and terminal device of prism structure | |
| CN106680914B (en) | A kind of composite brightening film and preparation method thereof | |
| US8425067B2 (en) | Composite diffuser structure and backlight module | |
| CN203745671U (en) | Novel PET diffusion membrane | |
| CN107422530A (en) | A kind of high sprayed film for covering high brightness and preparation method thereof | |
| KR20170121968A (en) | Light guide member for display, backlight unit and liquid crystal display apparatus comprising the same | |
| CN205750206U (en) | A kind of compound blast basement membrane and composite brightening film | |
| CN110515240A (en) | A kind of backlight module, its production method and display device | |
| JP2015031893A (en) | Lens film laminate for lighting equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Diffusion type brightened reflecting film and backlight device Effective date of registration: 20200716 Granted publication date: 20171226 Pledgee: Industrial Commercial Bank of China Ltd. Hefei Changjiang East Road sub branch Pledgor: HEFEI LUCKY SCIENCE & TECHNOLOGY INDUSTRY Co.,Ltd. Registration number: Y2020980004100 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20230505 Granted publication date: 20171226 Pledgee: Industrial Commercial Bank of China Ltd. Hefei Changjiang East Road sub branch Pledgor: HEFEI LUCKY SCIENCE & TECHNOLOGY INDUSTRY Co.,Ltd. Registration number: Y2020980004100 |