CN108387955A - A kind of peep-proof lens, peep-proof device and display device - Google Patents
A kind of peep-proof lens, peep-proof device and display device Download PDFInfo
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- CN108387955A CN108387955A CN201810260203.2A CN201810260203A CN108387955A CN 108387955 A CN108387955 A CN 108387955A CN 201810260203 A CN201810260203 A CN 201810260203A CN 108387955 A CN108387955 A CN 108387955A
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- 239000000758 substrate Substances 0.000 claims description 33
- 230000000694 effects Effects 0.000 abstract description 29
- 230000003287 optical effect Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 7
- 238000009738 saturating Methods 0.000 description 5
- 239000011521 glass Substances 0.000 description 4
- 230000000007 visual effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 208000008918 voyeurism Diseases 0.000 description 3
- 230000003247 decreasing effect Effects 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 244000144985 peep Species 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B3/00—Simple or compound lenses
- G02B3/02—Simple or compound lenses with non-spherical faces
- G02B3/06—Simple or compound lenses with non-spherical faces with cylindrical or toric faces
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Abstract
The invention discloses a kind of peep-proof lens, peep-proof device and display device, which includes：The plane of incidence, the exit facet opposite with the plane of incidence, first side and second side；Exit facet includes the first inclined-plane, pillar face and the second inclined-plane；The intersection on pillar face and the first inclined-plane is the first intersection, and the intersection on pillar face and the second inclined-plane is the second intersection, and the first intersection and the second intersection are the straight line parallel with the plane of incidence；Second interior angle of the first interior angle and second side and the plane of incidence of first side and the plane of incidence is all higher than or is equal to 90 °；First inclined-plane is more than the first intersection to the distance of the plane of incidence at a distance from the third intersection to the plane of incidence of first side, and the second inclined-plane is more than the second intersection to the distance of the plane of incidence at a distance from the 4th intersection to the plane of incidence of second side.The solution of the present invention can converge light to greatest extent, reduce the angle of emergence of emergent light, achievees the effect that peep-proof, and optical loss is low, simple in structure, at low cost.
Description
Technical field
The present embodiments relate to a kind of peep-proof technology more particularly to peep-proof lens, peep-proof device and display devices.
Background technology
With the fast development of display product, display product not only brings great convenience and finds pleasure in people’s lives
Interest also will appear the problems such as divulging a secret during its use.
It divulges a secret in order to prevent, existing peep-proof structure generally uses lattice grating to shrink emergent ray, to play peep-proof
Effect, but lattice grating intercepts light and carries out that optical energy can be lost in irreflexive repetitive process.Further, it is also possible to be based on
Optics polarization light technology switches emergent ray using the electric-controlled light-regulating film of liquid crystal and two tropism dyestuffs, to realize peep-proof effect, but
It is this peep-proof device based on the photoelectric characteristic of liquid crystal, production is complicated, needs automatically controlled, and cost is slightly higher.
Invention content
A kind of peep-proof lens of present invention offer, peep-proof device and display device, to provide, a kind of optical loss is low, structure is simple
Single and at low cost peep-proof structure.
In a first aspect, an embodiment of the present invention provides a kind of peep-proof lens, including：
The plane of incidence, the exit facet opposite with the plane of incidence, first side and second side；
The exit facet includes the first inclined-plane, pillar face and the second inclined-plane；The friendship in the pillar face and first inclined-plane
Line is the first intersection, and the intersection on the pillar face and second inclined-plane is the second intersection, first intersection and described second
Intersection be and the plane of incidence parallel lines；
In the peep-proof lens interior, first interior angle and the second side of the first side with the plane of incidence
It is all higher than with the second interior angle of the plane of incidence or equal to 90 °；
First inclined-plane is more than described first at a distance from the third intersection to the plane of incidence of the first side and hands over
For line to the distance of the plane of incidence, second inclined-plane is big at a distance from the 4th intersection to the plane of incidence of the second side
In the distance of second intersection to the plane of incidence.
Optionally, the ranges of indices of refraction of the peep-proof lens is 1.45-1.68.
Optionally, the first side and the second side are symmetrical relative to first plane of symmetry, first inclined-plane and
Second inclined-plane is symmetrical relative to first plane of symmetry.
Optionally, the value range of first interior angle and second interior angle is 90 ° -92 °.
Optionally, the horizontal distance between first intersection and second intersection is the width of the peep-proof lens
, the ratio of first intersection and second intersection to the distance of the plane of incidence and the height of the peep-proof lens
Value is respectively less than or is equal to 1/2.
Optionally, first angle and second inclined-plane and described second on first inclined-plane and the first side
The value range of second angle of side is 10 ° -20 °.
Optionally, first interior angle and second interior angle are 90 °.
Optionally, the peep-proof lens further include third side and the 4th side, the third side and the 4th side
Face is symmetrical relative to first plane of symmetry；
The third side at a distance from the 5th intersection to the plane of incidence of the first side with the peep-proof lens
Height ratio be less than or equal to 1/4；6th intersection of the third side and the plane of incidence is to the first side
Distance and the ratio of the width of the peep-proof lens are less than or equal to 1/50；And the 4th side and the 7th of the plane of incidence
The distance between intersection and the 6th intersection are less than the width of the peep-proof lens.
Optionally, the exit facet further includes the first plane and the second plane, first plane and second plane
It is symmetrical relative to first plane of symmetry；
The of 8th intersection of first plane and the first side and first plane and first inclined-plane
The distance between nine intersections and the ratio of the width of the peep-proof lens are less than or equal to 0.02.
Second aspect, the embodiment of the present invention additionally provide a kind of peep-proof device, including：
The peep-proof that first substrate and multiple any embodiments of the present invention on the first substrate provide is saturating
Mirror, multiple peep-proof lens are arranged side by side；
Wherein, the refractive index of the first substrate is less than the refractive index of the peep-proof lens.
Optionally, there is the first gap between the two neighboring peep-proof lens, first is filled in first gap
Medium, the refractive index of the first medium are less than the refractive index of the peep-proof lens；
The maximum width in first gap and the ratio of the width of the peep-proof lens are less than or equal to 0.012.
The third aspect, the embodiment of the present invention additionally provide a kind of display device, which is characterized in that including display panel and this
The peep-proof device that invention any embodiment provides；
The peep-proof device is set to the light emission side of the display panel.
Optionally, there is the second gap between the peep-proof device and the display panel, filled in second gap
The refractive index of second medium, the second medium is N0, and the refractive index of the first substrate is N1,45 ° of arcsinN0/N1 ＜.
An embodiment of the present invention provides a kind of peep-proof lens, peep-proof device and display device, which includes：It is incident
Face, the exit facet opposite with the plane of incidence, first side and second side；Exit facet includes the first inclined-plane, pillar face and the
Two inclined-planes；The intersection on pillar face and the first inclined-plane is the first intersection, and the intersection on pillar face and the second inclined-plane is the second intersection, first
Intersection and second intersection are and plane of incidence parallel lines；In the peep-proof lens interior, the first side with it is described enter
It penetrates first interior angle in face and the second interior angle of the second side and the plane of incidence is all higher than or is equal to 90 °；First inclined-plane
Be more than the first intersection at a distance from the third intersection to the plane of incidence of first side to the distance of the plane of incidence, second inclined-plane and institute
The distance for stating the 4th intersection of second side to the plane of incidence is more than second intersection to the distance of the plane of incidence.It is described
Peep-proof lens can converge incident light to greatest extent, so that the outgoing range of emergent light is reduced, reaches the effect of peep-proof
Fruit, and the peep-proof lens are reflected away nearly all incident light by exit facet, optical loss is low, and it is simple in structure, at
This is low.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for peep-proof lens that the embodiment of the present invention one provides；
Fig. 2 is the schematic cross-section of peep-proof lens in Fig. 1；
Fig. 3 is a kind of index path of the middle light transmission for peep-proof lens that the embodiment of the present invention one provides；
Fig. 4 is the structural schematic diagram for another peep-proof lens that the embodiment of the present invention one provides；
Fig. 5 is a kind of concrete structure schematic diagram for peep-proof lens that the embodiment of the present invention one provides；
Fig. 6 is a kind of structural schematic diagram of peep-proof device provided by Embodiment 2 of the present invention；
Fig. 7 is a kind of structural schematic diagram for peep-proof display device that the embodiment of the present invention four provides；
Fig. 8 is the emergent ray visual angle schematic diagram of area source；
Fig. 9 is the emergent ray visual angle schematic diagram for the peep-proof display device that the embodiment of the present invention four provides.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Embodiment one
Fig. 1 is a kind of structural schematic diagram for peep-proof lens that the embodiment of the present invention one provides.Fig. 2 is peep-proof lens in Fig. 1
Schematic cross-section.Referring to Fig. 1 and Fig. 2, peep-proof lens provided in this embodiment, including：The plane of incidence 10 and the plane of incidence 10 are opposite
Exit facet 20, first side 30 and second side 40；Exit facet 20 includes the first inclined-plane 21, pillar face 22 and the second inclined-plane
23；The intersection on pillar face 22 and the first inclined-plane 21 is the first intersection 61, and the intersection on pillar face 22 and the second inclined-plane 23 is the second friendship
Line 62, the first intersection 61 and the second intersection 62 are the straight line parallel with the plane of incidence 10；In peep-proof lens interior, first side 30 with
The first interior angle 1 and second side 40 of the plane of incidence 10 are all higher than with the second interior angle 2 of the plane of incidence 10 or are equal to 90 °；First
Inclined-plane 21 and the third intersection 63 of first side 30 are more than the first intersection 61 hanging down to the plane of incidence 10 to 10 distance d1 of the plane of incidence
Straight distance, the second inclined-plane 23 are more than the second intersection 62 to incidence at a distance from the 4th intersection 64 to the plane of incidence 10 of second side 40
The distance in face 10.
Wherein, the first inclined-plane 21 and the second inclined-plane 23 and the intersection in pillar face 22 are the straight line parallel with the plane of incidence 10,
That is the first intersection 61 and the second intersection 62 are parallel with the busbar in pillar face 22, and the busbar in pillar face 22 is parallel with the plane of incidence 10.
Third intersection 63 can be the first inclined-plane 21 and the practical intersecting lens of first side 30, can also be the extended surface on the first inclined-plane 21
With the intersecting lens of the extended surface of first side 30.Similarly, the second inclined-plane 23 and the 4th intersection 64 of second side 40 can be two
The practical intersection of person can also be the intersection of the two extended surface.
Fig. 3 is a kind of index path of the middle light transmission for peep-proof lens that the embodiment of the present invention one provides.Fig. 3 gives several
The index path of the representative light of kind.Referring to Fig. 3, into the light of the peep-proof lens, the smaller light of incident angle can be from pillar face
22 reflect away (light that the pass line and incidence angle for being B referring to incidence angle are D)；The larger light of incidence angle can be incident on the first side
Face 30 or second side 40 are incident on the light meeting of first side 30 or second side 40 since the refractive index of peep-proof lens is higher
It is totally reflected, is reflected away (referring to the light that incidence angle is A) by the first inclined-plane 21, pillar face 22 or the second inclined-plane 23.
And 90 ° are all higher than or are equal to by the way that the first interior angle 1 and the second interior angle 2 is arranged, i.e., along far from the plane of incidence 10
Direction, the horizontal distance between first side 30 and second side 40 gradually increase, increase and be incident on first side 30 or the
The incidence angle of the light (can be with continued reference to the light that incidence angle is A) of two side faces 40, make more light in first side 30 or
It can be totally reflected at second side 40.
With continued reference to Fig. 3, the first intersection 61 is more than to incidence by the distance d1 that third intersection 63 is arranged to the plane of incidence 10
The vertical range in face 10, and the distance of the 4th intersection 64 to the plane of incidence 10 is more than the distance that the second intersection 62 arrives the plane of incidence 10, protects
Demonstrate,proved be incident on first side 30 or second side 40 light be totally reflected after can be emitted by exit facet 20.
Peep-proof lens provided in this embodiment converge the most of light for entering the peep-proof lens by pillar face 22
It is poly-, and the light that first side 30 or second side 40 are totally reflected is carried out to greatest extent by the first inclined-plane 21 or the second inclined-plane 23
Convergence, reduce the angle of emergence of emergent light, the outgoing range of emergent light can be made to reduce, achieve the effect that peep-proof, and should
The loss of peep-proof optics of lens is low, simple in structure, at low cost.
Specifically, peep-proof lens use the material of high refractive index, it is situated between to be dredged from light when ensuring that light is incident on peep-proof lens
Matter enters optically denser medium, may be implemented to converge the light for entering peep-proof lens.Optionally, the refractive index model of peep-proof lens
It encloses for 1.45-1.68.In this way, so that light is less than the medium incident of the refractive index of peep-proof lens from other refractive index to peep-proof
When lens, the angle into peep-proof lens is smaller, further improves the peep-proof effect of peep-proof lens, illustratively works as light from sky
When gas is incident on peep-proof lens, the angle that light enters peep-proof lens is less than 45 °.
Optionally, with continued reference to Fig. 3, first side 30 and second side 40 relative to first plane of symmetry symmetrical 50, first
Inclined-plane 21 and the second inclined-plane 23 are symmetrical relative to first plane of symmetry 50.It should be noted that in order to further increase peep-proof lens
Peep-proof effect, pillar face 22 can also be symmetrical relative to first plane of symmetry 50.
Wherein, first plane of symmetry 50 is a virtual plane vertical with the plane of incidence 10.First side 30 and second side 40
And first inclined-plane 21 and the second inclined-plane 23 be symmetrically arranged two benefits, one so that the structure of peep-proof lens is more
Simply, technology difficulty is reduced, the cost of manufacture of peep-proof lens is further decreased, second, peep-proof lens are about first plane of symmetry 50
Symmetrically, the light of all angles incidence can be made to be emitted with the smaller angle of emergence, improve the peep-proof effect of peep-proof lens.
When excessive in view of the inclined degree of first side 30 and second side 40, enter the peep-proof lens from the plane of incidence 10
Light be greatly decreased, some light can be incident from first side 30 or second side 40, and total reflection convergence can not occur, make to prevent
The peep-proof effect for peeping lens substantially reduces.In order to improve the peep-proof effect of peep-proof lens, optionally, in the first interior angle 1 and second
The value range of angle α 2 is 90 ° -92 °.
Optionally, with continued reference to Fig. 2, the horizontal distance d3 between the first intersection 61 and the second intersection 62 is peep-proof lens
The ratio of the 3/5-4/5 of width d4, the first intersection 61 and the second intersection 62 to the distance d2 of the plane of incidence and the height of peep-proof lens
Respectively less than or equal to 1/2.
With continued reference to Fig. 1 and Fig. 2, the width d4 of peep-proof lens between first side 30 and second side 40 it is maximum away from
From.Illustratively, in Fig. 2 the width d4 of peep-proof lens be the first inclined-plane 21 and first side 30 intersection and the second inclined-plane 23 and
The distance between the intersection of second side 40.The height of peep-proof lens be exit facet 20 peak to the plane of incidence 10 distance.
Pass through the 3/ of the horizontal distance d3 being arranged between the first intersection 61 and the second intersection 62 width for being peep-proof lens d4
, it can be ensured that most of light projection incident from the plane of incidence 10 is reflected to pillar face 22 at pillar face 22,
It is emitted by peep-proof lens with the smaller angle of emergence, realizes the convergence to light.
In addition, arriving the vertical range of the plane of incidence no more than peep-proof lens by the way that the first intersection 61 and the second intersection 62 is arranged
The half of height so that the protrusion that the first inclined-plane 21 and first side 30 and the second inclined-plane 23 and second side 40 are constituted
With enough height, to enable the light being totally reflected at first side 30 or second side 40 to project first
It on inclined-plane 21 or the second inclined-plane 23, and is reflected at the first inclined-plane 21 or the second inclined-plane 23, with the smaller angle of emergence by preventing
Lens outgoing is peeped, realizes the convergence to light.
With continued reference to Fig. 2, optionally, 23 He of the first angle β 1 and the second inclined-plane of the first inclined-plane 21 and first side 30
The value range of second angle β 2 of second side 40 is 10 ° -20 °.
Specifically, the angle by adjusting the first angle β 1 and the second angle β 2, can be adjusted from 30 He of first side
Incident angle of the light that second side 40 is totally reflected on the first inclined-plane 21 and the second inclined-plane 23.By the way that the first angle β 1 and the is arranged
Two angle β 2 are 10 ° -20 ° so that are reflected into the first inclined-plane 21 and the second inclined-plane respectively by first side 30 and second side 40
22 light can reflect at the first inclined-plane 21 and the second inclined-plane 23, to be gone out by the first inclined-plane 21 and the second inclined-plane 22
It penetrates, realizes the convergence to light, improve peep-proof effect.
Fig. 4 is the structural schematic diagram for another peep-proof lens that the embodiment of the present invention one provides.Referring to Fig. 4, optionally, the
One interior angle and the second interior angle are 90 °.
In order to reduce technique difficulty of processing, first side 30 and second side 40 can be set perpendicular to the plane of incidence 10.When
When first side 30 and second side 40 are not obliquely installed, the area of the plane of incidence 10 is larger, can make more light pass through into
It penetrates face 10 to enter in the peep-proof lens, improves the peep-proof effect of peep-proof lens, reduce optical loss.
Optionally, peep-proof lens further include third side 31 and the 4th side 41,41 phase of third side 31 and the 4th side
It is symmetrical for first plane of symmetry 50；Third side 31 and the 5th intersection 65 of first side 30 to 10 distance d5 of the plane of incidence and are prevented
The ratio for peeping the height of lens is less than or equal to 1/4；Third side 31 and the 6th intersection 66 of the plane of incidence 10 arrive first side 30
The ratio of width of distance d6 and peep-proof lens be less than or equal to 1/50；And the 4th side 41 and the plane of incidence 10 the 7th intersection
67 and the 6th the distance between intersection 66 d7 be less than the width d4 of peep-proof lens.
As shown in figure 3, when the first side 30 of peep-proof lens and second side 40 intersect with the plane of incidence 10, it is a small amount of incident
The larger light in angle will reflect away in the bottom of first side 30 or second side 40, without full transmitting occurs (referring to incidence
Angle is the light of C).In order to ensure that the light for being incident on the plane of incidence 10 can be all emitted from exit facet 20, reduction optical loss,
Interior prism third side 31 and the 4th side 41 are respectively set in first side 30 and second side 40, so as to be incident on side
The light in face (first side 30, second side 40, third side 31 and the 4th side 41) is totally reflected, with by peep-proof lens
Pillar face 22, the first inclined-plane 21 or the second inclined-plane 23 outgoing.
It is understood that the angle of inclination of third side 31 and the 4th side 41 is adjusted, it can be with the incidence of light regulating
Incident angle when to third side 31 and four sides 41, so as to be incident on the light hair of third side 31 and the 4th side 41
Raw total reflection.
Specifically, referring to Fig. 4, by the way that the height of third side 31 and the 4th side 41 is arranged, i.e. d5 is saturating not higher than peep-proof
The 1/4 of mirror so that the larger light of most of incidence angle can be incident at first side 30 or second side 40 and be totally reflected
(such as light that incidence angle is A), light (such as light that incidence angle be E) of a small amount of incidence angle more than A can be from third side
Face 31 or the 4th side 41 are totally reflected.By the way that the width received in third side 31 is arranged, i.e. d6 is no more than peep-proof lens
The 1/50 of width, it is ensured that the plane of incidence 10 has larger area, and more light can be made to be incident in peep-proof lens, reduces
Optical loss.
It should be noted that when first side 30 and second side 40 vertical with the plane of incidence 10, the 6th intersection 66 to
The distance d6 of one side 30 is the length of the 6th intersection 66 and the common vertical line section of first side 30.When first side 30 and the second side
When face 40 and 10 out of plumb of the plane of incidence, the distance d6 of the 6th intersection 66 to first side 30 be by the 5th intersection 65 and with incidence
The length of the vertical plane in face 10 and the common vertical line section of the 6th intersection 66.In addition, the present embodiment is merely exemplary with third side
30 and the 4th side 40 relative to first plane of symmetry 50 it is symmetrical for illustrate, not limitation of the invention, in other realities
It applies in mode, third side 30 and the 4th side 40 can not also be symmetrical arranged.
In view of the angle between the first inclined-plane 21 and first side 30 and the second inclined-plane 23 and second side 40 is smaller,
Sharp intersection is formed in actual process and needs fine technique processing technology, can improve process costs.And even if in technique
Sharp intersection can be formed, the case where fractureing or wearing also easily occurs in the part in practical applications.With continued reference to Fig. 4,
Optionally, exit facet 20 further includes the first plane 24 and the second plane 25, and the first plane 24 and the second plane 25 are relative to first
The plane of symmetry 50 is symmetrical；The 9th of the 8th intersection 68 and the first plane 24 and the first inclined-plane 21 of first plane 24 and first side 30
The distance between intersection 69 and the ratio of the width of peep-proof lens are less than or equal to 0.02.
Specifically, the first plane 24 of setting and the second plane 25 can reduce technology difficulty, and can be to avoid because of intersection
Caused by sharp phenomena such as local frangibility.It is understood that the width of the first plane 24 and the second plane 25 (is equivalent to
The distance between 8th intersection 68 and the 9th intersection 69) it is excessive when, the light into the peep-proof lens can be from the first plane 24 or the
Two planes 25 reflect away, and the first plane 24 and the second plane 25 will not converge light, can reduce peep-proof lens
Peep-proof effect, therefore the width of the first plane 24 and the second plane 25 is smaller, the peep-proof effect of peep-proof lens is better.Therefore, exist
In the range of technique license, the width that the first plane 24 and the second plane 25 can be arranged is as small as possible.
Fig. 5 is a kind of concrete structure schematic diagram for peep-proof lens that the embodiment of the present invention one provides.It is understood that anti-
Peeping the concrete structure of lens can be adjusted according to actual conditions, to reach best peep-proof effect.Illustratively, setting is anti-
It includes the plane of incidence, exit facet, first side, second side, third side and the 4th side to peep lens.Wherein, exit facet includes
First inclined-plane, pillar face, the second inclined-plane, the first plane and the second plane.
Fig. 5 gives a kind of concrete structure ratio of peep-proof lens.Wherein, Fig. 5 is illustratively with first side and second
Side is vertical with the plane of incidence, and peep-proof lens it is opposite it is symmetrical with first plane of symmetry for illustrate, referring to Fig. 5, Ke Yishe
The width for setting the peep-proof lens is 5, is highly 4.Correspondingly, the height of third side and the 4th side is 1, as peep-proof lens
The 25% of height, interior receipts width (i.e. the distance of the 6th intersection to first side) are 0.1, as the 2% of peep-proof lens width.The
The width (i.e. the distance of the 8th intersection and the 9th intersection) of one plane and the second plane is 0.1, as peep-proof lens width
2%.The width (i.e. the distance between the first intersection and the second intersection) in pillar face is 3.5, as the 70% of peep-proof lens width,
The wherein busbar O in pillar face is located at the center line (intersection of the plane of incidence and first plane of symmetry) of the plane of incidence.Pillar face is oblique with first
The distance of the intersection (the first intersection and the second intersection) on face and the second inclined-plane to the plane of incidence is the 50% of peep-proof lens height.Pass through
Above-mentioned size is set, when light is from the smaller medium of refractive index, such as air, when being incident on peep-proof lens, is emitted by peep-proof lens
The shooting angle of light be respectively less than 30 °, preferable peep-proof effect can be reached.
It should be noted that the specific proportion structure of peep-proof lens is only gived in Fig. 5, it can be according to actual product need
It asks, determines the width of the peep-proof structure and the concrete unit of height.
Embodiment two
Fig. 6 is a kind of structural schematic diagram of peep-proof device provided by Embodiment 2 of the present invention.Referring to Fig. 6, the present invention is implemented
The peep-proof device that example provides, including：
The arbitrary peep-proof lens 100 that first substrate 200 and multiple above-described embodiments on first substrate 200 provide,
Multiple peep-proof lens 100 are arranged side by side；Wherein, the refractive index of first substrate 200 is less than the refractive index of peep-proof lens 100.
It should be noted that first substrate 200 can be the Supporting Media being additionally arranged, can also be in practical application
Some Supporting Medias, illustratively, when peep-proof device is applied in display panel, peep-proof lens 100, which can be arranged, to be shown
On substrate in panel, wherein the substrate of display device can be as the first substrate 200 of support peep-proof lens 100；Work as peep-proof
When device application widget peep-proof, peep-proof lens 100 can be fitted on the glass of window, be filled the glass of window as peep-proof
First substrate 200 in setting.
Refractive index by the way that first substrate 200 is arranged is less than the refractive index of peep-proof lens 100, it is ensured that light is incident on peep-proof
To enter optically denser medium from optically thinner medium when lens 100, light is tentatively converged, the peep-proof effect of peep-proof lens is improved.
Illustratively, it when light is incident on peep-proof lens 100 by first substrate 200, can be obtained according to formula, first substrate
When 200 refractive index is more than the refractive index of air, the incidence angle into the light of peep-proof lens 100 is respectively less than 45 °, makes by peep-proof
The angle of emergence for the light that lens 100 are emitted is respectively less than 30 °, has reached preferable peep-proof effect.
The structure of the peep-proof device is simple, and processing cost is low, can converge most of light, reach preferable peep-proof
Effect, and optical loss is low.
With continued reference to Fig. 6, optionally, there is the first gap between two neighboring peep-proof lens 100, filled in the first gap
There are first medium, the refractive index of first medium to be less than the refractive index of peep-proof lens；The maximum width d0 and peep-proof in the first gap are saturating
The ratio of the width of mirror is less than or equal to 0.012.
It is understood that when multiple peep-proof lens 100 are arranged side by side, if arrangement is close very close to each other, peep-proof is saturating
The refractive index of mirror 100 is identical, then enters the light of peep-proof lens 100 and may not be totally reflected when passing through its side, directly
It injects in adjacent peep-proof lens 100.In order to reach preferable peep-proof effect, can be arranged between adjacent peep-proof lens 100
There are the first gaps.And first medium that refractive index is less than peep-proof lens 100 is filled in the first gap illustratively can be with
The light-transmitting particles that low-refraction is filled in the first gap, to be totally reflected by the light of 100 side of peep-proof lens,
Realize preferable peep-proof effect.
It, can be between peep-proof lens through the light of first substrate but when the maximum width d0 in the first gap is excessive
Launch in first gap, the light launched from the first gap does not pass through the convergence of peep-proof lens, not the effect of peep-proof.
Therefore, in order to ensure that the light into peep-proof lens can be totally reflected, and the peep-proof device has preferable peep-proof effect,
The maximum width d0 and 0.012 of the width no more than peep-proof lens in the first gap can be set.
In addition, in order to protect the peep-proof device, one layer of light transmission glue can be covered on entire peep-proof device.
Embodiment three
Present embodiments provide a kind of display device, including the arbitrary peep-proof device in display panel and above-described embodiment；
Peep-proof device is set to the light emission side of display panel.
It is understood that the light that the light emission side of display panel is sent out enters peep-proof lens by first substrate, peep-proof is saturating
Mirror can converge light, and the light that display panel is sent out can only just can see in special angle, reach display device with this
The effect of peep-proof.Display device provided in this embodiment, peep-proof device can converge incident light to greatest extent, used
The outgoing range for penetrating light reduces, and achievees the effect that peep-proof, and can reflect away most of incident light, optical loss
It is low, it is simple in structure, at low cost.
Under normal circumstances, in order to preferably be converged to the light that display panel is sent out, light can gradually be converged
It is poly-, optionally, there is the second gap between peep-proof device and display panel, second medium, second medium are filled in the second gap
Refractive index be N0, the refractive index of first substrate is N1,45 ° of arcsinN0/N1 ＜.
It is well known that when light enters optically denser medium from optically thinner medium, the angle of emergence can be less than incidence angle.Pass through setting
The refractive index of second medium is less than the refractive index of first substrate so that the light that display panel is sent out enters the after second medium
Refraction convergence can occur when one substrate, further increase peep-proof effect.
Illustratively, when second medium is air, the light that display panel is sent out can be by light by air and first substrate
It is converged, so that the angle into the light of peep-proof lens is less than 45 °, by the refraction of peep-proof lens, the angle meeting of emergent light
Further convergence.Preferable peep-proof effect can be reached, for example, emergent light can be made by the refractive index of adjusting peep-proof lens
The angle of emergence be respectively less than 30 °.
Example IV
Fig. 7 is a kind of structural schematic diagram for peep-proof display device that the embodiment of the present invention four provides.The present embodiment is above-mentioned
On the basis of each embodiment, a kind of specific example is provided.
Referring to Fig. 7, which includes being arranged in area source 400, first substrate 200 and in first substrate
Multiple peep-proof lens 100 arranged side by side on 200, wherein there is the second gap between area source 400 and first substrate 200
300。
Wherein, the specific size of peep-proof lens is as shown in Figure 5.There are the first gap between adjacent peep-proof lens 100,
It is less than the light-transmitting particles of the peep-proof index of refraction in lens in one gap filled with refractive index, the maximum width d0 in the first gap is 0.06.
Air is filled in second gap 300.Wherein, N2 ＞ N1, N1 are the refractive index of first substrate, and N2 is the refractive index of peep-proof lens.
First substrate 200 can be glass substrate, and the refractive index N1 of glass substrate is 1.42, and the refractive index N2 of peep-proof lens is 1.67,
The refractive index for the light-transmitting particles filled in first gap is 1.32.
It should be noted that in order to simulate the light for entering peep-proof lens in actual application, area source 400 can be set
For the primary light source of youth.Fig. 8 is the emergent ray visual angle schematic diagram of area source.Referring to Fig. 8, it is known that the light that area source is sent out is in light emission side
It is uniformly distributed.
Fig. 9 is the emergent ray visual angle schematic diagram for the peep-proof display device that the embodiment of the present invention four provides.It, can referring to Fig. 9
To find out, by the second gap, the processing of first substrate and peep-proof lens, the angle of emergence of the light that area source is sent out in light emission side
At 30 ° or so, i.e., the peep-proof display device has good peep-proof effect.
Peep-proof display device provided in this embodiment can converge incident light to greatest extent, can make outgoing
The outgoing range of light reduces, and achievees the effect that peep-proof, and can reflect away most of incident ray, and optical loss is low,
It is simple in structure, at low cost.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (13)
1. a kind of peep-proof lens, which is characterized in that including：
The plane of incidence, the exit facet opposite with the plane of incidence, first side and second side；
The exit facet includes the first inclined-plane, pillar face and the second inclined-plane；The intersection in the pillar face and first inclined-plane is
The intersection on the first intersection, the pillar face and second inclined-plane is the second intersection, first intersection and second intersection
For the straight line parallel with the plane of incidence；
In the peep-proof lens interior, the first side and the first interior angle of the plane of incidence and the second side and institute
The second interior angle for stating the plane of incidence is all higher than or is equal to 90 °；
First inclined-plane arrives at a distance from the third intersection to the plane of incidence of the first side more than first intersection
The distance of the plane of incidence, second inclined-plane are more than institute at a distance from the 4th intersection to the plane of incidence of the second side
State the second intersection to the plane of incidence distance.
2. peep-proof lens according to claim 1, it is characterised in that：
The ranges of indices of refraction of the peep-proof lens is 1.45-1.68.
3. peep-proof lens according to claim 1, it is characterised in that：
The first side and the second side are symmetrical relative to first plane of symmetry, first inclined-plane and second inclined-plane
It is symmetrical relative to first plane of symmetry.
4. peep-proof lens according to claim 1, it is characterised in that：
The value range of first interior angle and second interior angle is 90 ° -92 °.
5. peep-proof lens according to claim 1, it is characterised in that：
Horizontal distance between first intersection and second intersection is the 3/5-4/5 of the width of the peep-proof lens, institute
The ratio for stating the first intersection and second intersection to the distance of the plane of incidence and the height of the peep-proof lens be respectively less than or
Equal to 1/2.
6. peep-proof lens according to claim 1, it is characterised in that：
The second of the first angle and second inclined-plane and the second side of first inclined-plane and the first side
The value range of angle is 10 ° -20 °.
7. peep-proof lens according to claim 1, it is characterised in that：
First interior angle and second interior angle are 90 °.
8. peep-proof lens according to claim 3, it is characterised in that：
The peep-proof lens further include third side and the 4th side, and the third side and the 4th side are relative to described
First plane of symmetry is symmetrical；
The third side at a distance from the 5th intersection to the plane of incidence of the first side with the height of the peep-proof lens
The ratio of degree is less than or equal to 1/4；The third side is at a distance from the 6th intersection to the first side of the plane of incidence
It is less than or equal to 1/50 with the ratio of the width of the peep-proof lens；And the 7th intersection of the 4th side and the plane of incidence
The distance between described 6th intersection is less than the width of the peep-proof lens.
9. peep-proof lens according to claim 3, it is characterised in that：
The exit facet further includes the first plane and the second plane, and first plane and second plane are relative to described
One symmetrical face is symmetrical；
First plane is handed over the 8th intersection of the first side and first plane with the 9th of first inclined-plane
The distance between line and the ratio of the width of the peep-proof lens are less than or equal to 0.02.
10. a kind of peep-proof device, which is characterized in that including：
First substrate and multiple claim 1-9 any one of them peep-proof lens on the first substrate, Duo Gesuo
Peep-proof lens are stated to be arranged side by side；
Wherein, the refractive index of the first substrate is less than the refractive index of the peep-proof lens.
11. peep-proof device according to claim 10, it is characterised in that：
There is the first gap between the two neighboring peep-proof lens, be filled with first medium in first gap, described the
The refractive index of one medium is less than the refractive index of the peep-proof lens；
The maximum width in first gap and the ratio of the width of the peep-proof lens are less than or equal to 0.012.
12. a kind of display device, which is characterized in that filled including display panel and claim 10-11 any one of them peep-proofs
It sets；
The peep-proof device is set to the light emission side of the display panel.
13. according to claim 12 display device, it is characterised in that：
There is the second gap between the peep-proof device and the display panel, fill second medium in second gap, institute
The refractive index for stating second medium is N0, and the refractive index of the first substrate is N1,45 ° of arcsinN0/N1 ＜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810260203.2A CN108387955B (en) | 2018-03-27 | 2018-03-27 | Peep-proof lens, peep-proof device and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810260203.2A CN108387955B (en) | 2018-03-27 | 2018-03-27 | Peep-proof lens, peep-proof device and display device |
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| CN108387955A true CN108387955A (en) | 2018-08-10 |
| CN108387955B CN108387955B (en) | 2024-02-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112965228A (en) * | 2021-03-19 | 2021-06-15 | 重庆京东方显示照明有限公司 | Peep-proof film, display panel and display device |
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| CN108387955B (en) | 2024-02-27 |
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