CN108957607A - A kind of prism film group reducing light diffusion - Google Patents
A kind of prism film group reducing light diffusion Download PDFInfo
- Publication number
- CN108957607A CN108957607A CN201810768204.8A CN201810768204A CN108957607A CN 108957607 A CN108957607 A CN 108957607A CN 201810768204 A CN201810768204 A CN 201810768204A CN 108957607 A CN108957607 A CN 108957607A
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- China
- Prior art keywords
- prismatic lens
- hole
- prism
- refraction
- light diffusion
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
Abstract
The invention discloses a kind of prism film groups for reducing light diffusion, including lower prismatic lens and upper prismatic lens, the upper prismatic lens are covered on the top of lower prismatic lens, the lower prismatic lens are divided into frosting and lower prism layer, if arterial highway is arranged in the lower prism layer reflects hole, the refraction hole is arranged in lower prism layer in equidistant permutation, the inner cavity in the refraction hole is designed as taper, the interior diameter in the refraction hole is in gradually decline trend, the upper prismatic lens are divided into prism layer, photic zone and atomizing layer, the photic zone is coated on the lower surface of prism layer, if in the photic zone including the antistatic particle in arterial highway, if the atomizing layer includes arterial highway refractive particle.The present invention carries out birefringence to the light after reflection, is then again incident on prismatic lens, effectively reduces the light diffusion for not penetrating light, the utilization rate of light is greatly improved.
Description
Technical field
The present invention relates to photoelectron and microelectronic field, specifically a kind of prism film group for reducing light diffusion.
Background technique
LCD backlight is the uniform illumination device of a plane, and the cathode fluorescent tube or LED light bar as light source are arranged
It is listed in both sides or one side (may be long side, it is also possible to short side) of entire backlight.Cold cathode tube is linear light source, and LED is
This light source is converted to area source and needed using light guide plate by point light source.Light guide plate is generally by the acrylic plastics system of high transparency
At, surface is very smooth and flat, so that the total reflection that most of internal light can be regular on its flat surface, without penetrating
Out to outside light guide plate.The bottom of the light guide plate of liquid crystal display is printed on the site of white.The position of site is printed in light guide plate
On, the no longer regular total reflection of light but can be to projecting above light guide plate.The density for controlling each position site can be controlled
How much irradiant light guide plate processed is in this position.The light guide plate mesh point of sophisticated design can allow the light of two sides incidence uniform
Paving be dispersed in entire plane.Optical diaphragm can be placed again above light guide plate, these diaphragms play uniform light, and converge big
The effects of angular light is observed for front.
The important component of prismatic lens optical diaphragm, mirror film are that acrylic resin is made using 3M microreplicated technology
Prism structure be produced on the optical thin film being fabricated in PET base material, surface is that height is the micro- of 20~50 microns
Prism structure.Prismatic lens are frequently located in the top layer of optical film material, BEF series brightness enhancement film in the assembling of general LCD backlight
Individual effective penetrance amplification about 60% or so, estimate further refraction light source, improve the utilization rate of light source, be prismatic lens hair
The trend of exhibition.
Summary of the invention
The purpose of the present invention is to provide a kind of prism film groups for reducing light diffusion, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme:
A kind of prism film group reducing light diffusion, including lower prismatic lens and upper prismatic lens, the upper prismatic lens are covered on down
The top of prismatic lens, the lower prismatic lens are divided into frosting and lower prism layer, if arterial highway is arranged in the lower prism layer reflects hole,
The refraction hole is arranged in lower prism layer in equidistant permutation, and the inner cavity in the refraction hole is designed as taper, the refraction hole
For interior diameter in gradually decline trend, the size of the opening diameter D1 in the refraction hole is 24+2/-2um, described to reflect the vertical of hole
To depth D2 size be 37+5/-3um, it is described refraction hole axis Y1 and lower prism layer normal Y2 between angle
It is required that being 34.5 °, the cross-sectional angle in the refraction hole is 36.5 °.
As a further solution of the present invention: the lower prismatic lens and upper prismatic lens are all made of transparent PET material, under guarantee
The saturating effect of the light of prismatic lens and upper prismatic lens.
As a further solution of the present invention: the opening area summation in the refraction hole requires to be lower prismatic lens upper surface face
Long-pending 43~48%.
As a further solution of the present invention: the upper prismatic lens are divided into prism layer, photic zone and atomizing layer, described
Photosphere is coated on the lower surface of prism layer, if including the antistatic particle in arterial highway in the photic zone, the atomizing layer includes
If there is arterial highway refractive particle.
As a further solution of the present invention: the photic zone uses BEF-RP/BEF-RP IIr composite, described
The lower surface design of photosphere is wave situation structure, and the antistatic particle is located at crest location, is matched with refraction pore structure,
Improve refractive power effect.
As a further solution of the present invention: the refractive particle uses CH42NU49C material, and the refractive particle is not in
Rule conditions are arranged in prism layer surface, and the refractive particle monomer is in irregular structure, avoid the diffusing reflection of emanating light line
Effect avoids the interference to personnel.
As a further solution of the present invention: the short side of the lower prismatic lens and upper prismatic lens is respectively provided with limit salient angle,
Limit hole is provided in the limit salient angle, the long side opening of the limit hole is bent inwardly, to form " I " type construction
Limit opening when combining membrane material, carries out effective position to lower prismatic lens and upper prismatic lens.
Compared with prior art, the beneficial effects of the present invention are:
One, for existing prism sheet material, the single penetrance about 60% of light.Upper table of the present invention in lower prismatic lens
Face design has refraction hole, to carry out birefringence to the light after reflection, is then again incident on prismatic lens, effectively reduces
The light diffusion for not penetrating light is greatly improved the utilization rate of light, and then can effectively improve to the luminance of liquid crystal display panel.
Two, upper prismatic lens surface design irregular alignment and be irregular structure refractive particles, to externally penetrate
Light carry out complete diffusing reflection, light can be made not concentrate reflection, the light concentration of reflection is avoided to be incident in the eyes of user.
It can reduce by the interference of emergency light reflex.
Detailed description of the invention
Fig. 1 is front view of the invention.
Fig. 2 is the side sectional view of lower prismatic lens in the present invention.
Fig. 3 is the partial region enlarged drawing of lower prismatic lens in the present invention.
Fig. 4 is the light refraction figure of lower prismatic lens in the present invention.
Fig. 5 is the side sectional view of upper prismatic lens in the present invention.
Fig. 6 is the partial region enlarged drawing of upper prismatic lens in the present invention.
Fig. 7 is the structural schematic diagram that salient angle is limited in the present invention.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
In the embodiment of the present invention, a kind of prism film group reducing light diffusion please refers to Fig. 1, Fig. 2 and Fig. 5, including lower prism
Piece 1 and upper prismatic lens 2, the upper prismatic lens 2 are covered on the top of lower prismatic lens 1, and the lower prismatic lens 1 and upper prismatic lens 2 are equal
Using transparent PET material, guarantee the saturating effect of light, the lower prismatic lens 1 and upper prismatic lens 2 are machined and are formed, and upper
Below by the way of plated film or stamp.
Referring to Fig. 2, the lower prismatic lens 1 divide for frosting 11 and lower prism layer 12, the frosting 11 is used for and expansion
Discrete piece fits reduction, avoids being fully bonded to together between membrane material.
Fig. 2 and Fig. 3 are please referred to, if arterial highway is arranged in the lower prism layer 12 reflects hole 13, the opening in the refraction hole 13
43~48% (Fig. 3) that it is lower 1 upper surface area S2 of prismatic lens that area summation S1, which is required,.It is arranged in equidistant permutation in the refraction hole 13
Cloth is in lower prism layer 12, and the inner cavity in the refraction hole 13 is designed as taper, and the interior diameter in the refraction hole 13 is in gradually to successively decrease
The size of trend, the opening diameter D1 in the refraction hole 13 is 24+2/-2um, the vertical depth D2's in the refraction hole 13
Having a size of 37+5/-3um, the angle requirement between the axis Y1 in the refraction hole 13 and the normal Y2 of lower prism layer 12 is
34.5 °, the cross-sectional angle α in the refraction hole 13 is 36.5 °, the light reflected by upper prismatic lens 2 the not upper prismatic lens 2 of transmission,
Play the effect further reflected.
Referring to Fig. 4, the upper surface horizontal line of following prism layer 12 is standard；
Embodiment one: incident ray L1 (being acute angle with horizontal line angle): after the incident ray L1 is incident, through reflecting hole
After the refraction of 13 right side walls, right side wall is refracted to again after reflexing to the left side wall in refraction hole 13, so that refraction hole 13 is reflected, into one
Step into be incident upon prismatic lens 2 (when incident ray L1 and refraction 13 right side wall of hole normal angle very little when, may be directly by left side
Wall reflects refraction hole 13).
Embodiment two: incident ray L2 (being obtuse angle with horizontal line angle): after the incident ray L1 is incident, through reflecting hole
13 right side walls refraction after, reflex to refraction hole 13 left side wall, reflection light direction towards refraction hole 13 inner cavity, but due to
The interior diameter in hole 13 is reflected in gradually decline trend, and then gradually reflects refraction hole 13 again at the bottom cavity in refraction hole 13.
Embodiment three: incident ray L3 (being right angle with horizontal line angle): after the incident ray L1 is incident, through reflecting hole
After the refraction of 13 right side walls, the left side wall in refraction hole 13 is reflexed to, right side wall top edge is being refracted by left side wall, to reflect
Hole 13 is reflected, prismatic lens 2 are further incident to.
Referring to Fig. 5, the upper prismatic lens 2 divide for upper prism layer 21, photic zone 23 and atomizing layer 22, the photic zone 23
It is coated on the lower surface of prism layer 21, if in the photic zone 23 including the antistatic particle 24 in arterial highway, the atomizing layer 22
If including arterial highway refractive particle 25.
The photic zone 23 uses BEF-RP/BEF-RP IIr composite, and the lower surface design of the photic zone 23 is
Wave situation structure, the antistatic particle 24 are located at crest location, match with the refraction pore structure on lower 12 surface of prism layer,
So that crest location is placed exactly in the upper end in refraction hole, the refraction effect for improving refraction holes mechanism, the antistatic grain are maximized
Son is located at crest location, avoids that the electrostatic that friction generates occurs between prismatic lens and lower prismatic lens, avoids electrostatic considerations to whole
The influence of a liquid crystal display panel mechanism.
Referring to Fig. 6, the refractive particle 25 uses CH42NU49C material, the refractive particle 25 is in irregular situation
It is arranged in 21 surface of prism layer, 25 monomer of refractive particle is in irregular structure.Light by outer incidence is (mainly external
Specular light after liquid crystal) it is incident to prismatic lens surface and can reflect, refractive particle 25 uses irregular alignment, and
It is designed as irregular structure, so that the light externally penetrated carries out complete diffusing reflection, light can be made not concentrate reflection, avoids reflection
Light concentrates the eyes for being incident in user.It can reduce by the interference of emergency light reflex.
Referring to Fig. 7, the short side of the lower prismatic lens 1 and upper prismatic lens 2 is respectively provided with limit salient angle 3, the limit convex
Limit hole 31 is provided on angle 3, the long side opening of the limit hole 31 is bent inwardly, to form the limit of " I " type construction
Opening when combining membrane material, carries out effective position to lower prismatic lens 1 and upper prismatic lens 2.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (7)
1. a kind of prism film group for reducing light diffusion, including lower prismatic lens (1) and upper prismatic lens (2), the upper prismatic lens (2) are covered
The top in lower prismatic lens (1) is covered, the lower prismatic lens (1) and upper prismatic lens (2) are all made of transparent PET material, the lower rib
Eyeglass (1) is divided into frosting (11) and lower prism layer (12), the lower prism layer (12) if on setting arterial highway reflect hole (13),
It is characterized in that, the refraction hole (13) is arranged on lower prism layer (12) in equidistant permutation, and the inner cavity of refraction hole (13) is set
It is calculated as taper, the interior diameter of refraction hole (13) is in gradually decline trend, the size of the opening diameter of refraction hole (13)
For 24+2/-2um, refraction hole (13) it is vertical to the size of depth be 37+5/-3um, the axis of refraction hole (13)
Angle between line and the vertical normal of lower prism layer (12) is 34.5 °, and the cross-sectional angle of refraction hole (13) is 36.5 °.
2. the prism film group according to claim 1 for reducing light diffusion, which is characterized in that the opening of refraction hole (13)
Area summation requires to be the 43~48% of lower prismatic lens (1) upper surface area.
3. the prism film group according to claim 1 for reducing light diffusion, which is characterized in that the upper prismatic lens (2) are divided into
Upper prism layer (21), photic zone (23) and atomizing layer (22), the photic zone (23) are coated on the lower surface of prism layer (21),
The photic zone (23) is if interior includes the antistatic particle in arterial highway (24), and the atomizing layer (22) is if include arterial highway refractive particle
(25)。
4. the prism film group according to claim 3 for reducing light diffusion, which is characterized in that the photic zone (23) uses
BEF-RP/BEF-RP IIr composite, the lower surface design of the photic zone (23) is wave situation structure, described antistatic
Particle (24) is located at crest location.
5. the prism film group according to claim 3 for reducing light diffusion, which is characterized in that the refractive particle (25) uses
CH42NU49C material, the refractive particle (25) are arranged in prism layer (21) surface, the refractive particle in irregular situation
(25) monomer is in irregular structure.
6. the prism film group of -5 any reduction light diffusions according to claim 1, which is characterized in that the lower prismatic lens (1) and
The short side of upper prismatic lens (2) is respectively provided with limit salient angle (3), is provided with limit hole (31) on the limit salient angle (3).
7. the prism film group of light diffusion is reduced described in -6 according to claim 1, which is characterized in that the length of the limit hole (31)
Side opening is bent inwardly, to form the limit opening of " I " type construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810768204.8A CN108957607A (en) | 2018-07-13 | 2018-07-13 | A kind of prism film group reducing light diffusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810768204.8A CN108957607A (en) | 2018-07-13 | 2018-07-13 | A kind of prism film group reducing light diffusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108957607A true CN108957607A (en) | 2018-12-07 |
Family
ID=64483294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810768204.8A Pending CN108957607A (en) | 2018-07-13 | 2018-07-13 | A kind of prism film group reducing light diffusion |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021012702A1 (en) * | 2019-07-23 | 2021-01-28 | Shenzhen GOODIX Technology Co., Ltd. | Asymmetric brightness enhancement films for liquid crystal display assemblies |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008003243A (en) * | 2006-06-21 | 2008-01-10 | Fujifilm Corp | Optical sheet, light source device, and display device |
| CN101793382A (en) * | 2009-01-30 | 2010-08-04 | 惠和株式会社 | Optical sheet and backlight unit using the same |
| CN102253440A (en) * | 2011-04-29 | 2011-11-23 | 友达光电股份有限公司 | Optical film |
| CN105068329A (en) * | 2015-09-23 | 2015-11-18 | 深圳市华星光电技术有限公司 | Light alignment device and space light splitting prism sheet thereof |
| CN205720744U (en) * | 2016-06-15 | 2016-11-23 | 深圳创维－Rgb电子有限公司 | A kind of prism structure, prism film and backlight module |
-
2018
- 2018-07-13 CN CN201810768204.8A patent/CN108957607A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008003243A (en) * | 2006-06-21 | 2008-01-10 | Fujifilm Corp | Optical sheet, light source device, and display device |
| CN101793382A (en) * | 2009-01-30 | 2010-08-04 | 惠和株式会社 | Optical sheet and backlight unit using the same |
| CN102253440A (en) * | 2011-04-29 | 2011-11-23 | 友达光电股份有限公司 | Optical film |
| CN105068329A (en) * | 2015-09-23 | 2015-11-18 | 深圳市华星光电技术有限公司 | Light alignment device and space light splitting prism sheet thereof |
| CN205720744U (en) * | 2016-06-15 | 2016-11-23 | 深圳创维－Rgb电子有限公司 | A kind of prism structure, prism film and backlight module |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021012702A1 (en) * | 2019-07-23 | 2021-01-28 | Shenzhen GOODIX Technology Co., Ltd. | Asymmetric brightness enhancement films for liquid crystal display assemblies |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181207 |
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| RJ01 | Rejection of invention patent application after publication |