CN108681201A - Projection screen and projection display system - Google Patents
Projection screen and projection display system Download PDFInfo
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- CN108681201A CN108681201A CN201810225788.4A CN201810225788A CN108681201A CN 108681201 A CN108681201 A CN 108681201A CN 201810225788 A CN201810225788 A CN 201810225788A CN 108681201 A CN108681201 A CN 108681201A
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- screen
- optical screen
- projection
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/54—Accessories
- G03B21/56—Projection screens
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- Overhead Projectors And Projection Screens (AREA)
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Abstract
A kind of projection screen of present invention offer and projection display system.Projection screen provided by the invention, including rigid optical screen, soft rigid connection portion, be disposed around the optical screen side screen frame and multiple flexible connectors；Wherein, the first end in soft rigid connection portion is fixedly connected with optical screen, and the second end stretches out the edge extent of optical screen；The first end of each flexible connector is connected with the second end in soft rigid connection portion, and second end is connect with the screen frame；The pulling force that soft rigid connection portion transmits the flexible connector makes optical screen be stretched to formation state.Projection screen provided by the invention can also keep preferable flatness while optical screen is fixed.
Description
Technical field
The present invention relates to field of projection display more particularly to a kind of projection screens and projection display system.
Background technology
With the continuous development of science and technology, projection type display system is increasingly used in the work and life of people.
Laser projection is because of the gradual occuping market of the advantages that its colour gamut is wide, and brightness is high, long lifespan.Currently, projection is shown
The projection screen of system generally includes the variety classes such as supporting part and hard curtain.Wherein, hard curtain is because it is equal with good optical gain
Even property, color reducibility and flatness have preferable display effect.Fig. 1 is a kind of orthographic projection optical screen in the prior art
Structural schematic diagram.By taking a kind of orthographic projection optical screen as an example, hard curtain generally includes optical structure layers as shown in Figure 1：Coloring
Layer 101, diffusion layer 102, Fresnel Lenses layer 103 and reflecting layer 104 etc..Wherein, dyed layer 101 is located at the outermost of projection screen
Side, projection image's light beam is incident at first, is also emitted eventually by the layer, the main function of dyed layer is to improve projection screen
Color restoration capability, sometimes dyed layer 101 can also be substituted by substrate layer；Substrate layer includes dyed layer and hard film layer；Hard
Film layer, which primarily serves protective effect diffusion layer 102 and is mainly used for non-uniform incident light, to be homogenized, and by the angle of emergent light
It is enlarged；Fresnel Lenses layer 103 is used to carry out the light beam within the scope of incident certain angle to collimate parallel injection, and will
The light beam that reflecting layer 104 is reflected is dissipated.Reflecting layer 104 is usually aluminium mirror coating layer, is plated on the outer of Fresnel Lenses layer 103
Side.
Constantly increase with the size of projection screen（The size of mainstream projection screen is usually at 80 cun or more at present）, in order to
More fragile hard curtain is fixed, and ensures the planarization of projection screen, generally use back plate type fixed structure is to hard curtain
It is fixed.Fig. 2 is the structural schematic diagram of back plate type fixed structure in the prior art.As shown in Fig. 2, specifically, back plate type is solid
It includes Decorative frame 201 and flat back-supported plank 204 to determine structure, and hard curtain 202 and back-supported plank 204 are led to
It crosses the fitting of bonding agent 203 to fix, then Decorative frame 201 is connected on back-supported plank 204, to complete to hard curtain 202
Support fix, the flatness of hard curtain 202 can be maintained by the rigidity of back-supported plank 204 in this way, avoids hard curtain 202
It is deformed.
However, hard curtain is fixed using monoblock back plate type fixed structure, on the one hand, the area of back-supported plank compared with
Greatly, when processing, large-sized plank is easy to happen the metabolies such as bulge, meanwhile, optical screen is by being glued to backboard plank
When non-uniform coat will also result in the irregularities of fitting, to influence the flatness of the hard curtain of monoblock, on the other hand, this back of the body
Board-like fixed form is but also the weight of monoblock screen is very big, not readily transportable and suspension, to the enlarged band of projection size
To limit.
Invention content
A kind of projection screen of present invention offer and projection display system, can be fixed optical screen, and make optics
Screen keeps preferable flatness.
In a first aspect, the present invention provides a kind of projection screen, including rigid optical screen, soft rigid connection portion, encloses and set
Screen frame in the side of optical screen and multiple flexible connectors；The first end and optical panel in soft rigid connection portion
Curtain is fixedly connected, and the second end stretches out the edge extent of optical screen；The first end of each flexible connector with it is soft
The second end in rigid connection portion is connected, and second end is connect with screen frame；Soft rigid connection portion transfer elastic connector
Pulling force so that optical screen is stretched to formation state；
Further, the first end in soft rigid connection portion is fixedly connected with optical screen, is specifically included：Optical screen
Front be projection light-receiving surface, the back side of optical screen is bonded with soft rigid connection portion first end, soft rigid connection portion
First end at least covers the region corresponding with positive light area at the optical screen back side；
And further, soft rigid connection portion first end also covers the upper edge region and optical screen of optical screen
Lower edge margin；
Alternatively, the first end in soft rigid connection portion is fixedly connected with optical screen, specifically include：The side of optical screen
Edge is bonded with soft rigid connection portion first end；
And further, the edge in the front and/or the back side of optical screen is bonded with the first end in soft rigid connection portion；
Further, multiple flexible connectors are arranged at intervals on the both sides up and down of optical screen；
Alternatively, multiple flexible connectors are arranged at intervals on the surrounding of optical screen；
Further, screen frame includes outer support portion, and outer support portion is supported on the back side at the edge of optical screen, and outer
Except the edge extent that the edge of support portion is located at optical screen, the second end in soft rigid connection portion extend out to outer branch
It is reversely bent behind the outside of support part, to be connect with flexible connector behind the edge of package outer support portion；
Further, the second end in soft rigid connection portion is provided at least one rigidity for being connected with flexible connector
Fixing piece；
Further, the section of screen frame be hollow shape, and be provided in the internal cavities of screen frame reinforcing beam or
Ribs；
Further, soft rigid connection portion is soft cloth.
Second aspect, the present invention provide a kind of projection display system, including projection arrangement and any technical solution as above
Projection screen, projection arrangement are used to project projected picture to the optical screen of projection screen.
The projection screen that technical solution of the present invention provides, by by the first end and optical screen in soft rigid connection portion
Be fixedly connected, the second end stretch out optical screen edge extent and connected with flexible connector, flexible connector but with
Screen frame connects, to which so that the optical screen of hard is stretched to flat for the pulling force of soft rigid connection portion transfer elastic connector
Whole state realizes fixation and positioning between optical screen and screen frame, while optical screen can rely on elastic connection
The elasticity of part is in smooth extended configuration without being deformed, and improves projected picture display effect.
Projection display system provided by the invention equally has overall weight light, the good technology effect of projection screen flatness
Fruit.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of structural schematic diagram of orthographic projection optical screen in the prior art；
Fig. 2 is the structural schematic diagram of back plate type fixed structure in the prior art；
Fig. 3 is the structural schematic diagram for the projection screen that the embodiment of the present invention one provides；
Fig. 4 is the exploded perspective view for the projection screen that the embodiment of the present invention one provides；
Fig. 5 is the schematic cross-section for the projection screen that the embodiment of the present invention one provides；
Fig. 6 is the partial structural diagram for the projection screen that the embodiment of the present invention one provides；
Fig. 7 is the structure schematic diagram for the projection screen that the embodiment of the present invention one provides；
Fig. 8 is a kind of structural schematic diagram of flexible connector in the projection screen that the embodiment of the present invention one provides；
Fig. 9 is the partial structural diagram for another projection screen that the embodiment of the present invention one provides；
Figure 10 is the scheme of installation of screen frame in Fig. 9；
Figure 11 A are the partial structurtes decomposition diagrams of another projection screen provided by Embodiment 2 of the present invention；
Figure 11 B are the partial structurtes assembling schematic diagrams of another projection screen provided by Embodiment 2 of the present invention；
Figure 12 is the structural schematic diagram for the projection display system that the embodiment of the present invention three provides.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment one
As shown in figure 3, projection screen provided in this embodiment, specifically includes optical screen rigid optical screen 1, soft rigidity connects
Socket part 2, be disposed around optical screen 1 side screen frame 3 and multiple flexible connectors 4；Wherein, soft rigid connection portion
2 first end is fixedly connected with optical screen 1, and the second end stretches out the edge extent of optical screen 1；Each elasticity is even
The first end of fitting 4 is connected with the second end in soft rigid connection portion 2, and second end is connect with screen frame 3；2 is soft
The pulling force of rigid connection portion transfer elastic connector 4 makes optical screen 1 be stretched to formation state.
Wherein, the material in soft rigid connection portion is soft material, softer, but has certain rigidity, i.e. coefficient of elasticity
It is smaller, it is not susceptible to deformation, the transmission of power can be carried out.In a specific embodiment, when soft rigid connection portion can be with
For soft cloth, i.e., soft connection cloth is illustrated by taking soft connection cloth as an example below.
Fig. 5 shows a kind of side view of projection screen structure of the present embodiment.Fig. 4 shows a kind of projection screen of the present embodiment
The decomposition texture schematic diagram of curtain structure.
Optical screen 1 in projection screen is usually made of hard material, has certain rigidity and intensity, thus works as light
When screen 1 is stretched, more even curface can be formed.In this way, the positive at least partly region of optical screen 1 can
For as the light area for projected image, being shown so that picture and image are incident upon 1 front of optical screen.
Hard material due to constituting optical screen 1 usually has hard brittleness, if directly in optical screen rigid optical
It punches or slots on screen 1 and be fixed, be easy to cause the cracking of optical screen 1.In order to connect and fix optical screen hard light
Screen 1 is learned, the projection screen in the present embodiment further includes having soft connection cloth 2, and it is hard that connection cloth 2 can be bonded in optical screen
It on matter optical screen 1, and realizes and connects with other fixed structures, to complete the fixation to optical screen 1.
The first end in soft rigid connection portion 2 is fixedly connected with optical screen 1, can be specifically, optical panel
The back side of curtain 1 is bonded with soft rigid connection portion first end, wherein the first end in soft rigid connection portion 2 at least covers
The region corresponding with positive light area at 2 back side of optical screen.In order to realize that connection, connection cloth 2 have between optical screen 1
There are enough sizes, at least to cover the region opposite with positive light area at 1 back side of optical screen.In this way when connection cloth 2
For smooth extended configuration when, the light area for projecting image on optical screen 1 can also be stretched, preferable to realize
Projected picture.It is bonded with the optical screen back side at this point, the first end in soft rigid connection portion 2 can be specially connection cloth
Part.
Since optical screen 1 is when carrying out image projection, usually it is arranged in vertical hanging, thus optical screen rigid optical
Screen 1 is easier to naturally droop because of own wt, at this point, optical screen 1 mainly can the left and right sides will produce inward curl or
The phenomenon that person opens outward.In order to allow optical screen 1 to keep smooth, optionally, 1 back side of optical screen with positive light area pair
The upper edge region in the region, optical screen answered and the lower edge margin of optical screen can cover connection cloth 2.At this point, even
Connect cloth 2 vertically across entire optical screen 1, so as to so that optical screen 1 upper edge region and lower edge margin
The stretching for obtaining connection cloth 2, since the width of optical screen 1 usually in the horizontal direction is more than the width on vertical direction,
Reinforcement fixation thus is carried out to about 1 both sides of optical screen using connection cloth 2, can not only be occurred to curls inward to avoid upper and lower both sides
Bent or outer, it can also inhibit the crimp of the left and right sides simultaneously, to make entire optical screen 1 all have in all directions
Preferable flatness.
And in another optional mode, connection cloth 2 is covered in the back side of entire optical screen 1.Optics entire in this way
Screen rigid optical screen 1 can be bonded with soft connection cloth 2, to make rigid optical screen using the stretching, extension of connection cloth
Curtain 1, which is realized, to be stretched and stretches, to keep preferable planarization.
In above two mode, optical screen 1 can be attached to the middle position of connection cloth 2, and connect the edge of cloth 2 i.e.
The second end, can be to stretching on the outside of the edge of optical screen 1, to be attached with other structures.
In addition, when realizing the fitting of connection cloth 2 and optical screen 1, connection cloth 2 can also be in the back of the body with optical screen 1
After face paste is closed, the front of optical screen 1, then the front edge part with optical screen 1 are first folded into from the edge of optical screen 1
It bonds together, finally reversely continues to stretch on the outside of the edge of optical screen 1.
Since connection cloth 2 is constituted for soft material, thus in order to allow connection cloth 2 to remain extended as, in projection screen also
Include multiple flexible connectors 4, flexible connector 4 itself has elasticity, thus when 4 one end of flexible connector is fixed on connection
The edge of cloth 2, and when the other end is connect with the screen frame 3 for being disposed around 1 side of optical screen, it can rely on the elasticity of itself will
Connection cloth 2 struts, and it is smooth extended configuration to force connection cloth 2 to open.In general, in order to simplify the whole knot of projection screen
The elastic force direction of structure, flexible connector 4 is generally direction of pull, i.e., when flexible connector 4 is connected to connection cloth 2 and screen frame
When between 3, flexible connector 4 can will connect the screen frame 3 of cloth 2 outward and stretch, until connection cloth 2 is flared to stretch-like
State.
At this point, since connection cloth 2 and optical screen 1 are mutually bonded and are fit together, thus when connection cloth 2 flexes outward
When, optical screen 1 can also be formed and be stretched out, until optical screen 1 extends to smooth state.At this point, optical screen 1 can
To ensure preferable planarization, makes to be projected in 1 positive picture of optical screen and image with preferable display effect, avoid throwing
There is crooked and deformation in shadow picture.
In this way, the projection screen in the present embodiment, it can be right by connecting cloth 2, flexible connector 4 and screen frame 3
Optical screen 1 is fixed, while by the stretching action of the flexible connector in outside 4, connection cloth 2 can be allowed in stretching shape
State, and then drawing force is also applied to optical screen 1 by the transmission of power so that rigid optical screen 1, which is also presented, stretches expansion
State is conducive to optical screen rigid optical screen 1 and realizes planarization.
The concrete structure and operation principle of projection screen in the present embodiment are further elaborated below.
Optionally, optical screen rigid optical screen 1 usually can be by hard layer, Fresnel structure layer and projection layer etc.
Composition has certain strength and stiffness, and can have certain verticality to make light under vertical free hang
It learns screen and seems smooth, but due to still having certain softness, such as without support or by External force interference, optical screen hard
Optical screen is still unable to reach the flatness requirement needed for display, screen out-of-flatness, when laser projection picture will be made to show
Deformation, fuzzy, brightness disproportionation or other deterioration problems.
And fixed to be realized to optical screen rigid optical screen 1, using connection cloth 2 as connection structure, connect cloth 2
Generally there are the characteristics such as nonelastic, ultra-thin, fine and close and high intensity, when connecting cloth 2 and the fitting of optical screen 1 in this way, two can be allowed
Integral structure is formed between person, consequently facilitating realize power transmission, enable optical screen 1 follow connection cloth 2 deformation and
Generate stretching.Specifically, connection cloth 2 generally can be soft cloth.Connection cloth 2 can preferably transmission acts on when being stretched in this way
Power, and property is relatively stable, can adapt to relatively broad environment, such as the equal energy between -10 DEG C to 40 DEG C of environment temperature
Keep preferable flatness and reliability.
Optionally, the color of connection cloth 2 generally can be black, and 1 back side of optical screen can be covered in by connecting cloth 2 in this way
The region opposite with light area, play the role of shading and protection optical screen 1.This is because optical screen rigid optical
Screen 1 is optical structure layers, has certain light transmittance, and when especially as front projection screen, most one layer of the inside is reflecting layer, reflection
The acting surface of layer is reflected projection light（For example it is aluminizer）, but due to that can not accomplish 100% reflectivity, Suo Youhui
There is part light transmission, the decline of picture contrast can be caused in this way.Therefore, it is aluminium film specifically at the back side of optical screen 1
The back side, using black connection cloth carry out shading, be conducive to light and do not reveal, at the same can also prevent the screen back side scratch etc.,
It plays a protective role to aluminium film and each optical structure layers.
Optionally, when connecting optical screen 1 with cloth 2 is connect, adhesive is usually taken, that is, the mode of gluing is realized
Connection between the two and fixation.The back side of optical screen 1 is allowed to fit together with cloth 2 is connect by adhesive means in this way, light
Learn between the back side of screen 1 and connection cloth 2 will not there are space and gap, because without because both air in gap flow
（Especially temperature change when bring air-flow to flow）And influence the display of projected picture.
In general, for connect optical screen 1 and connect cloth 2 adhesive, usually have and optical screen 1 it is close or
Identical coefficient of thermal expansion, or with certain ductility, such optical screen 1 is generated because of temperature change to expand with heat and contract with cold
When, adhesive 2 can play certain cushioning effect, reduce due to optical screen 1 is deformed because expanding with heat and contract with cold caused by projected picture
It influences, is also beneficial to maintain the flatness of rigid optical screen 1, prevent because the two coefficient of expansion is different, expansion and contraction is different, makes
It obtains optical screen 1 and generates stress, and influence flatness.
For connect and be located by connecting cloth 2 and optical screen 1, screen frame 3 is generally tower structure, and screen frame
Frame 3 surrounds the hollow region of a rectangle or square, which can be used for placing optical screen 1, and screen frame
Frame 3 can be centered around except the edge of optical screen 1, and protection is provided for optical screen 1, and between screen frame 3 and connection cloth 2
By flexible connector 4 realize connect, the concrete structure and connection relation of screen frame 3 as shown in Fig. 3 to Fig. 7, wherein for
Convenient for narration, illustrated by taking the screen frame of 1 the upper side and lower side of optical screen as an example.It is understood that screen frame 3
The structure of the left and right sides also has structure similar with upper and lower both sides and connection relation, and details are not described herein again.
Specifically, Fig. 6 shows a kind of projection screen partial enlargement structural representation, as shown in fig. 6, connecting using elasticity
It, can between connection cloth 2, flexible connector 4 and screen frame 3 when fitting 4 realizes the connection between connection cloth 2 and screen frame 3
With there are many different structures and relative positions.As the optional embodiment of one of which, the size of screen frame 3 can be with
More than the size of connection cloth 2, thus screen frame 3 is located on the outside of the edge of connection cloth 2.At this point, one end of flexible connector 4 is
It is attached to the edge of connection cloth 2, and the other end of flexible connector 4 is protruding from the edge of connection cloth 2, and it is fixed in place
In on the screen frame 3 in 2 outside of connection cloth, flexible connector 4 can be relied on to be fixed on screen frame 3 by cloth 2 is connected in this way
Center, and connection cloth 2 is stretched by the elastic force of flexible connector 4, allow connection cloth 2 to keep smooth extended configuration.
And due to being arranged screen frame 3 on the outside of the edge of connection cloth 2, and flexible connector 4 is located at 2 edge of connection cloth
Outside connection type, will include flexible connector 4 and screen frame 3, thus the light of projection screen in connection cloth 2 outside
Wider frame region can be had by learning 1 outside of screen.In order to reduce the size of the frame region on the outside of optical screen 1, elasticity is even
Other positions can be arranged in fitting 4, positive in the optical screen 1 of projection screen to reduce flexible connector 4 and screen frame 3
Size.
As another optional embodiment, screen frame 3 may include outer support portion 31, outer support portion 31
Support is at the back side at the edge of optical screen 1, and the edge of outer support portion 31 is located at except the edge extent of optical screen 1, even
Connect cloth 2 edge extend out to the outside of outer support portion 31 after reversely bend, with package outer support portion 31 edge after with
Flexible connector 4 connects.
Wherein, since the back side of connection cloth 2 and optical screen 1 is bonded, thus 31 meeting of outer support portion and the back of the body for connecting cloth 2
One side fitting from optical screen 1, and abut the edge back side for being supported on optical screen 1.Since screen frame 3 is generally hard
Structure, so outer support portion 31 can realize good contact branch by soft connection cloth 2 to the back side of optical screen 1
Support.Meanwhile outer support portion 31 is located at the outer of screen frame 3, that is, the outermost regions of screen frame 3.Connect 2 He of cloth
After optical screen 1 is bonded, the edge of connection cloth 2 is located at except the edge of optical screen 1, and can continue it is protruding, and from outer
Along the outside of support portion 31 around the rear area of screen frame 3, the edge wrap of outer support portion 31 is got up, then with elasticity
It is attached between connector 4.In this way, connection cloth 2 is equivalent to hanging on the edge of outer support portion 31, and outer support portion
31 edge then can be used as supporting-point and is supported to connection cloth 2.At this point, the edge of outer support portion 31 can be equivalent to one
Fixed pulley makes the connection cloth 2 of 31 both sides of edges of outer support portion by the support of outer support portion 31 and to two different sides
It is far from outer support portion 31 when flexible connector 4 applies direction to the connection cloth 2 at the 31 edge back side of outer support portion to movement
When the pulling force at edge, it will be reversed pulling positioned at the positive connection cloth in 31 edge of outer support portion 2, and support to close to outer
The direction at 31 edge of portion is moved, to be stretched and be stretched.
Since outer support portion 31 can change the force direction suffered by connection cloth 2, thus flexible connector 4 is set
Seated position is no longer limited on the outside of the edge of connection cloth 2, but can be arranged within the coverage area when connecting cloth 2 and stretching.
Optionally, the first end of flexible connector 4, that is, the one end connected with the edge for connecting cloth 2 can be located at flexible connector 4
Second end outside.At this point, flexible connector 4 can be hidden in the back side direction of optical screen 1, such flexible connector 4
It can be covered by the optical screen 1 in front and connection cloth 2, be difficult to see that from the front of projection screen.Such set-up mode, light
Learning the region on the outside of 1 edge of screen no longer has flexible connector 4, and only only includes connection cloth 2 and screen frame 3, institute
There is lesser width with the frame region of formation, can effectively promote the appearance display effect of projection screen.
In addition, the section of screen frame 3 can be hollow shape, e.g. hollow, rectangular etc., and due to screen frame 3
Cross-sectional hollow, thus reinforcing beam or ribs can be provided in the internal cavities in section, to improve the entirety of screen frame 3
Structural strength.
In the connection type at the edge of above-mentioned connection cloth 2, the direction of pull and optical screen of flexible connector 4 can be allowed
The plane keeping parallelism at 1 place connects subparallel angle.Two aspect benefits can be brought in this way：On the one hand it can reduce throwing
The overall volume and thickness of shadow screen, when flexible connector 4 is when generating elastic deformation, elastically-deformable direction is located at optical panel
In plane where curtain, or with the plane there is smaller angle, thus the deformation quantity on the thickness direction of projection screen
It is smaller, the thickness of projection screen can be effectively reduced；On the other hand, when 1 institute of the direction of pull of flexible connector 4 and optical screen
Plane it is parallel when, also be easy so that optical screen 1 along where itself planar stretch extend, it is ensured that optical screen 1 begin
Eventually in same plane, the direction of pull of flexible connector 4 is parallel with the plane where optical screen, is not easy to make optical screen
1 generates distortion in other directions.
And when realizing the connection between flexible connector 4 and screen frame 3 or connection cloth 2, according to flexible connector 4
Type and structure difference, flexible connector 4 and connection cloth 2 between and flexible connector 4 and screen frame 3 between
Also there can be a variety of different connection types.Wherein, because screen frame 3 is rigid body, it is possible to using clamping, screw threads for fastening
Part connects or the common fixed forms such as riveting link together with flexible connector 4.And since connection cloth 2 is more soft
Material constituted, be not easy to be directly connected to flexible connector 4, thus usually also need to the fixed rigidity on connection cloth 2
Connection structure, and will connect cloth 2 and flexible connector 4 using the connection structure and link together.
As a kind of optional connection type, edge, that is, the second end of cloth 2 is connected, is provided at least one be used for and bullet
Property connector 4 connect rigid anchor 21.In order to allow connection cloth 2 and rigid anchor 21 to connect, the edge for connecting cloth 2 can be with
Surround close-shaped, such rigid anchor 21 can be fixed on the close-shaped inside, it is thus achieved that rigidly fixing
Fixation between part 21 and connection cloth 2.Rigid anchor 21 can be a variety of different shapes and structure, such as can be straight-bar
Shape structure etc..And correspondingly, the edge of connection cloth 2 can be and sewn together with the inside for connecting cloth 2 with inward curl, in this way
The edge of connection cloth 2 can form lipostomous, be worn wherein for the rigid anchor 21 of direct rod shape.Work as rigidity in this way
When fixing piece 21 moves under the pulling force of flexible connector, connection cloth 2 can also move, and be drawn as smooth stretch-like
State.In addition, rigid anchor 21 can also directly be sewn to the edge of connection cloth 2.It can be solid by rigidity because connecting cloth 2
Determine part 21 and realize connection with flexible connector 4, thus rigid anchor can be relied on to carry active force, connection cloth 2 can be made
Edge is not susceptible to tear or damage, and compared to being directly articulated on connection cloth, such as hole or ring, due to elastic connection
The quantity of part be it is limited, can be to the drawing force of limited a flexible connector in entire rigid anchor by rigid anchor
It is homogenized from the point of application in its direction, such drawing force can be uniformly applied on connection cloth, to connect cloth
Drawing force for rigid optical screen is also all throughout uniform, is more conducive to and realizes consistent planarization.Specific
In implementation, rigid anchor 1 is rigid bar structure, can select glass fibre or metal material, be not easy stress and become
Shape.
Optionally, in order to connect rigid anchor 21, flexible connector 4 generally can be to pull to spring, pull to spring
One end can be connected in the form of hanging etc. on rigid anchor 21, and the other end for pulling to spring is fixed on screen frame 3.
Specifically, pull to spring the one end being connect with rigid anchor 21 can be suspension hook or hanging ring shape, so as to rigidly fix
The hanging connection of part 21.In addition, flexible connector 4 can also be the common elastic connection knots of those skilled in the art such as rubber bodies
Structure, details are not described herein again.
Fig. 8 is a kind of structural schematic diagram of flexible connector in the projection screen that the embodiment of the present invention one provides.Such as Fig. 8 institutes
Show, further, for the ease of assembly, the side for pulling to spring is also provided with the stretch ring 41 hooked for foreign object.This
Sample operating personnel can be by the way that by hand, either other objects stretch into stretch ring 41 to load and unload or stretch to pulling to spring
Operation, consequently facilitating realizing the assembly or disassembly operation pulled between spring and rigid anchor 21 and screen frame 3.
Optionally, each rigid anchor 21 can be correspondingly connected with multiple flexible connectors 4.Such as rigid anchor 21
For straight-bar when, multiple flexible connectors can be connected on each straight-bar, and multiple flexible connectors are distributed on straight-bar
Different rod segments can effectively simplify the overall structure of projection screen in this way.
In addition, rigid anchor 21 can also connect one to one with flexible connector 4, this kind of connection type is usually applicable in
In rigid anchor 21 be the smaller structure of appearance and sizes such as close ring.
Flexible connector 4 needs enough tensile strengths when being fixed and stretching for optical screen 1, to ensure
Optical screen 1 is effectively fixed, and has preferable flatness.Flexible connector 4 itself need to be selected with adaptive ring
The elastic material of the cold and hot variation in border, and adaptation change can be carried out according to the variation of environment temperature or power, with flexible connector 4
To be illustrated for spring, when optical screen 1 is 80 inches of sizes, 1 weight of optical screen is usually 5 kilograms（Connect cloth 2
Lighter in weight, it is convenient to omit）, the number of active coils that can design spring in this way is 6 circles, and free height is 23mm or so；And work as
When optical screen 1 is fixed in spring, spring can be stretched to 30mm, i.e. elongation is 7mm.
Since the area of optical screen 1 is larger, so it is generally necessary to multiple flexible connectors 4 stretch jointly, light could be allowed
It learns screen 1 and connection cloth 2 is effectively launched into formation state.Space set between flexible connector 4, and with suitable row
Cloth density.On the one hand enough indirect drawing forces can be provided optical screen 1 using multiple flexible connectors 4, separately in this way
On the one hand, flexible connector 4 have suitable quantity, be also avoided that when 4 quantity of flexible connector is excessive cause it is difficult to install.One
As, the spacing between adjacent spring connector is in 134mm or so, you can while optical screen 1 is fixed in realization, protects
Demonstrate,proving optical screen 1 has enough flatness.
Wherein, as a kind of optional arrangement mode of flexible connector 4, multiple flexible connectors 4 can be spaced setting
In the surrounding of optical screen 1, for example respectively symmetrically direction is arranged at equal intervals.The four direction up and down of optical screen 1 in this way
Can be by the pulling force effect of flexible connector 4, thus optical screen 1 can be stretched effectively in all directions, be protected
Hold formation state.
And since optical screen 1 itself is rigid optical screen, thus in vertical hanging setting, be easier to because of own wt
Reason and naturally droop, and the left and right sides of optical screen 1 can inward curl or outward the phenomenon that.Thus as another
The optional arrangement mode of kind, can also allow multiple flexible connectors 4 to be arranged at intervals on the both sides up and down of optical screen 1, exist in this way
Entire screen width direction, optical screen rigid optical screen 1 can be all equivalent to by upper and lower drawing force to above and below screen
The direction on both sides has carried out reinforcing fixing, and upper and lower both sides have been fixed in width direction, prevents upper and lower both sides because being subject to
Fixed force is insufficient and inward curl occurs or opens outward, and since the width of optical screen 1 usually in the horizontal direction is more than perpendicular
The upward width of histogram, thus can also inhibit the crimp of the left and right sides simultaneously in this way.It can ensure flexible connector 4 in this way
Fixation and stretching to optical screen, and 4 negligible amounts of flexible connector, installation are more convenient.
It should be noted that the arrangement mode of above-mentioned flexible connector, be not only suitable for 1 back side of optical screen with front by
The corresponding region in light region, the upper edge region of optical screen 1 and the lower edge margin of optical screen are all covered with connection cloth
Situation is readily applicable to the case where connection cloth 2 is covered in entire 1 back side of optical screen.
In addition, as another optional arrangement mode, the surrounding of optical screen 1 is still both provided with flexible connector 4,
And it is less than the bullet positioned at the both sides up and down of optical screen positioned at the density of setting of the flexible connector of the left and right sides of optical screen 1
The density of setting of property connector.Flexible connector 4 is still looped around the surrounding of optical screen 1, but optical screen about 4 two in this way
The flexible connector setting of side is more intensive, and flexible connector setting in the left and right sides is more sparse, thus about 1 optical screen
The drawing force that both sides are subject to is larger, the stress that can be effectively antagonized 1 inward curl of optical screen or open outward；And optics
For screen 1 because naturally drooping, the stress that vertical direction curling occurs is very small, therefore the drawing force that the left and right sides is subject to is arranged
It is smaller.The flexible connector 4 of arrangement setting in this way still is able to the stretching demand in conjunction with 1 different directions of optical screen to optical screen
1 all directions apply drawing force appropriate, reach preferable stretching and fixed effect, due to subtracting for flexible connector quantity
It is few, also certain facility is brought to installation.
At this point, since the both sides up and down of optical screen 1 and the left and right sides are both provided with flexible connector 4, thus this kind of bullet
Property connector arrangement mode be primarily adapted for use in connection cloth 2 and be covered in the situation at 1 back side of entire optical screen.And it connects cloth 2 and covers
Cover region corresponding with positive light area at 1 back side of optical screen, optical screen 1 upper edge region and optical screen 1
Lower edge margin mode, because 1 left and right sides edge position of optical screen do not cover connection cloth 2, so elasticity should not be arranged
Connector 4.
For the ease of viewing, projection screen usually requires to be fixed on the vertical planes such as wall.As a kind of optional implementation
Mode, in order to realize that the fixation of projection screen, screen frame have the screen fixing groove for being connected with wall support part, screen
There is fixing groove downward notch, such screen frame wall support part or other solid can be connected to by screen fixing groove
Determine in structure, can specifically be mounted or be clamped using screen fixing groove.Fig. 9 is the another of the offer of the embodiment of the present invention one
A kind of partial structural diagram of screen frame.Figure 10 is the scheme of installation of screen frame in Fig. 9.As shown in Figures 3 to 10,
Optionally, since screen frame 3 has screen fixing groove 32, it is possible to by the way that hanger component 5 is arranged on wall, using as
Wall support part；Wherein, hanger component 5 includes support element 51, and support element 51 has for being inserted into screen fixing groove 32 and supporting
The articulated end 511 of screen frame 3,51 opposing sides of support element have variable position in the vertical direction.Such projection screen
Screen frame 3 can be articulated on hanger component 5, to realize projection screen and being relatively fixed between the walls.
For projection screen, the fixed structure of the optical screen also extension wall knot as entire projection screen simultaneously
Structure can simplify projection screen structure, be conducive to reduce the distance between projection optics screen and wall or thickness, meanwhile, light
It learns the fixation of screen and hangs wall construction and realize integration, be also beneficial to the simplification and weight saving of entire screen construction, be conducive to real
Existing large-sized Projection Display.
Specifically, including support element 51 in hanger component 5, support element 51 can in the vertical direction be moved relative to wall
It is dynamic, to change height of the support element 51 relative to ground.It can be therewith at this point, being supported screen frame 3 that part 51 is supported
Carry out height adjustment.
Wherein, according to the different structure of hanger component 5, support element 51 can also have a variety of different position adjusting sides
Formula.
And in another optional mode, can also include wall fasteners 52 in hanger component 5, wall fasteners
52 precalculated positions that can be fixed on the wall by fixed forms such as positioning bolts, and can usually be set in wall fasteners 52
Set moving structure vertically, such as vertical bolt 521 etc..For being provided with bolt 521 in wall fasteners 52, branch
Support member 51 is threaded through on vertical bolt 521, and the position for being located at 51 lower section of support element of vertical bolt 521 is arranged with nut 522,
Nut 522 and vertical bolt 521 are by the way that together with threaded engagement, when nut 522 is rotated around vertical bolt 521, nut 522 is
It can be moved up and down along the length direction of vertical bolt 521, and support element 51 is driven vertically to move, to drive screen
Frame 3 carries out height adjustment.
In order to support and mount screen frame 3, the ontology of support element 51 can also have a variety of different shapes or structure.
For example, optional, the shape of the articulated end 511 of support element 51 and the shape of the screen fixing groove 31 of screen frame 3 match.This
When, since screen fixing groove 31 is generally rectangular cross-section, so the articulated end 511 of support element 51 can be the shape with screen fixing groove 31
The rectangle that shape matches.The articulated end 511 of rectangle have certain thickness, can be stuck in screen fixing groove 31, and reduce or
Person eliminates shaking of the articulated end 511 in screen fixing groove 31, ensures that screen frame 3 is effectively fixed.
In addition, in order to promote the exterior aesthetics of projection screen, optionally, the front of optical screen 1, which is additionally provided with, to be used for
Cover the front decoration frame at the edge of connection cloth（It is not shown in figure）, front decoration frame and screen frame 3 connect.Front decoration frame in this way can
To be arranged on screen frame 3, and the exposed connection cloth 2 on the outside of 1 edge of optical screen is covered, avoids connection cloth 2
It is exposed, to allow the front outside of optical screen 1 to be front decoration frame, effectively to promote the positive aesthetics of projection screen.One
As, front decoration frame is similar with the structure of screen frame 3, is rectangular shaped rim structure.
Optionally, the surface of front decoration frame may be used the process of surface treatment such as plating, wire drawing or spray painting and be handled,
Further to promote its aesthetics.
Optionally, clamping, the connection of bonding or threaded fastener etc. may be used between front decoration frame and screen frame 3 originally
The common connection type of field technology personnel.
In the present embodiment, projection screen specifically includes optical screen rigid optical screen, soft connection cloth, is disposed around light
Learn the screen frame of the side of screen and multiple flexible connectors；The front of optical screen is projection light-receiving surface, optical screen
The back side with connect cloth fitting, the region or covering opposite with positive light area at the connection cloth covering optical screen back side is whole
A optical screen back side, and connection cloth is located at the part of the edge extent of optical screen and the first end of multiple flexible connectors connects
Connect, the second end of each flexible connector is connect with screen frame, in this way by connect first end and the optical screen of cloth into
Row is fixedly connected, and the second end, that is, marginal portion is stretched out the edge extent of optical screen and connected with flexible connector, and elasticity is even
Fitting is connect with screen frame again, to which the pulling force of soft connection cloth transfer elastic connector makes the optical screen of hard be stretched
To formation state, the fixation and positioning between optical screen and screen frame are realized, and optical screen can rely on elasticity even
The elasticity of fitting is in smooth extended configuration, improves projected picture display effect.With the back board fixing structure of traditional cover type
It compares, embodiment of the present invention provides firstly a kind of projection screen, is carried out to optical screen using the screen frame of frame-type
While fixing, and realize that rigid optical screen is fixed using soft connection material transfer elastic drawing force, also to optical panel
Curtain stretch that support is flat, on the one hand the fixation of above-mentioned optical screen and drafting results alleviate the overall weight of projection screen,
Material cost is greatly reduced, is on the other hand easier to realize the flatness that rigid optical screen is consistent, and this realization is smooth
The mode of degree has the characteristics that adaptive, preferably the variation expanded with heat and contract with cold of adaptive optics screen, flatness can easily keep, practical
Property is higher.
Embodiment two
Second embodiment of the present invention provides another projection screen structures, unlike embodiment one, soft rigid connection
The connection type in portion and optical screen, and the connection type with flexible connector, in the present embodiment, soft connection cloth is not
The back side of entire optical screen is completely covered.Specifically, in one embodiment, soft rigid connection portion is specially soft company
Connect cloth, the first end in soft rigid connection portion is the first edge of soft connection cloth, and the second end is the of soft connection cloth
Two edges, specifically, the first edge of soft connection cloth are bonded with the edge at the back side of optical screen, alternatively, soft connection cloth
First edge be bonded with the positive edge of optical screen, in above two mode, it is soft connection cloth second edge and bullet
Property connector connection, in specific implementation, rigid bar is accommodated by the way that closed end is arranged in the second edge of soft connection cloth so that
Flexible connector is hooked on rigid bar.
Alternatively, as shown in Figure 11 A, Figure 11 B, soft connection cloth is bonded with the front and back of optical screen.Above-mentioned side
In formula, soft connection cloth does not cover the entire back side of optical screen, only with the front of optical screen or the marginal zone at the back side
Domain is bonded.
Below in conjunction with attached drawing 11A and Figure 11 B, the feelings being bonded with the front and back of optical screen with soft connection cloth
Condition illustrates.
Soft connection cloth 2 can fit in the front and back of optical screen 1 simultaneously, and connection cloth 2 is " U "-shaped at this time,
The blind end of " u "-shaped is the second end on the outside of 1 edge of optical screen, can be used for connecting with structures such as flexible connectors 4
It connects, and constitutes two layers of opening connection cloth of " u "-shaped by the edge sandwiched of optical screen wherein, to be attached cloth 2 and light
Being connected and fixed between screen 1.Connection cloth positioned at 1 upper edge region of optical screen is fitted in optical screen 1 simultaneously
Front and the back side, wherein it is connection cloth 2a that it is positive, which to be attached to optical screen 1, and it is connection cloth 2b to be attached to 1 back side of optical screen；
And need the active force born smaller positioned at the connection cloth in 1 lower edge region of optical screen, it can be only the one of optical screen 1
Side is bonded, and is e.g. fitted in the back side of optical screen 1.
In general, due to either carrying out gluing using adhesive, or connected using structures such as nylon adherent buckles, optical panel
Bonding strength between curtain 1 and connection cloth 2 is usually all directly proportional with fitting area between the two.In order to ensure to connect 2 He of cloth
The reliability connected between optical screen 1 can usually allow connection cloth 2 to connect the front and back of optical screen 1 simultaneously, thus
It improves 1 edge of optical screen and connects the bonding strength between cloth 2.
Further, connection cloth 2 is with the back side in the front of optical screen 1 and optical screen 1 when being bonded, can allow with
The width for the connection cloth 2b that the width of the connection cloth 2a of the front fitting of optical screen 1 is less than and the back side of optical screen 1 is bonded.
The width for being located at the positive connection cloth 2a of optical screen 1 in this way is smaller, can form relatively narrow border width；And it is located at optical panel
The connection cloth 2b at 1 back side of curtain can realize larger connection area, ensure being reliably connected between connection cloth 2 and optical screen 1.
In general, can usually make way for the width that the positive connection cloth 2a of optical screen 1 keeps 10mm or so, and with optical screen 1
The connection cloth 2b of back side fitting keeps the width of 50mm or so.
Optionally, projection screen can also include protective cloth, protective cloth cover the optical screen back side with front sensitive area
The opposite region in domain.This is because the optical screen 1 of hard is optical structure layers, there is certain light transmittance, especially as just
When throwing screen, most one layer of the inside is reflecting layer, and the acting surface in reflecting layer is reflected projection light（For example it is aluminizer）, but
Due to that can not accomplish that 100% reflectivity, all part light that have penetrate, the decline of picture contrast can be caused in this way.Therefore,
At the back side of optical screen 1, it is the back side of aluminium film specifically, dark color can be utilized（E.g. black）Protective cloth hidden
Light is conducive to light and does not reveal, while the scuffing of the screen back side can also be prevented etc., protection is played to aluminium film and each optical structure layers and is made
With.Protective cloth can be various material, such as by fibrous material, the common sunscreen protection of plastics or those skilled in the art institute
With material etc..
And it is identical with embodiment one, in connection 2 U-typed blind end of cloth, i.e. the second end extends optical screen side
The edge of edge and screen frame support portion 31, and be bonded along screen frame support portion 31, and reversed fold, blind end end
Part, which is worn, rigidly fixes bar, for hooking flexible connector.Herein, the selection of bar is rigidly fixed, is used, can be found in
One content of embodiment, details are not described herein.
And it is similar with embodiment one, since the area of screen board 1 is larger, so it is generally necessary to multiple elasticity connect
Fitting 4 stretches jointly, and screen board 1 and connection cloth 2 could be allowed effectively to be launched into formation state.According to soft connection cloth and light
The connection type of screen is learned, setting of the flexible connector on screen frame also has difference.When soft connection cloth is only arranged
In the lower edges of optical screen, then flexible connector is set to upper and lower sides, for connect the screen frame of upper and lower both sides with
And the upper and lower sides of optical screen, when soft connection cloth is set to the edge of optical screen, then flexible connector can divide
It is distributed in the surrounding of optical screen or screen frame, at this point, space set between flexible connector 4, and with suitable arrangement
Density.
So on the one hand enough indirect drawing forces can be provided screen board 1 using multiple flexible connectors 4, it is another
Aspect, flexible connector 4 have suitable quantity, are also avoided that the peace for causing projection screen when 4 quantity of flexible connector is excessive
Dress is difficult.In general, the spacing between adjacent spring connector is in 134mm or so, you can fixed to screen board 1 realizing
Meanwhile ensureing that screen board 1 has enough flatness.Wherein, more as a kind of optional arrangement mode of flexible connector 4
A flexible connector 4 can be arranged at intervals on the surrounding of screen board 1, for example respectively symmetrically direction is arranged at equal intervals.Such screen
The four direction up and down of plate 1 can be by the pulling force effect of flexible connector 4, thus screen board 1 is equal in all directions
It can effectively be stretched, keep formation state.
As another optional arrangement mode, the surrounding of screen board 1 is still both provided with flexible connector 4, and is located at
The density of setting of the flexible connector of the left and right sides of screen board 1 is less than the flexible connector positioned at the both sides up and down of screen board
Density of setting.Flexible connector 4 is still looped around the surrounding of screen board 1, but the flexible connector of about 4 both sides of screen board in this way
Setting is more intensive, and flexible connector setting in the left and right sides is more sparse, thus the stretching that about 1 both sides of screen board are subject to is made
Stress firmly larger, that 1 inward curl of screen board can be effectively antagonized or opened outward；And screen board 1 occurs because naturally drooping
The stress of vertical direction curling is very small, therefore it is smaller that the drawing force that the left and right sides is subject to is arranged.Arrangement is arranged in this way
Flexible connector 4 still is able to apply all directions of screen board 1 in conjunction with the stretching demand of 1 different directions of screen board appropriate
Drawing force, reaches preferable stretching and fixed effect is also brought centainly just to installation due to the reduction of flexible connector quantity
Profit.
Second embodiment of the present invention provides another projection screen structures, are carried out by soft connection cloth and optical screen
Part is bonded, and the optical screen of hard is fixed to hollow screen frame using the drawing force of flexible connector, realizes light
While learning screen fixation, also optical screen stretching is stretched flat so that the flatness of optical screen is preferable, improves projected picture
Show quality.
Embodiment three
The embodiment of the present invention three provides a kind of projection display system, as shown in figure 12.Projection display system provided in this embodiment,
The projection screen 11 in projection arrangement 10 and previous embodiment one or embodiment two is specifically included, projection arrangement is used for projection screen
The optical screen of curtain projects projected picture, and specifically, projection arrangement is the ultrashort out-of-focus projection's equipment of laser, has smaller projection
Than projected light beam being projected on projection screen 11 obliquely with larger angle of inclination, projection screen 11 is front projection screen, will
Light is reflected forms picture into human eye.Wherein, the concrete structure of projection screen, operation principle and effect are in previous embodiment
In be described in detail, details are not described herein again.
In the projection display system of the present embodiment, projection screen can specifically include optical screen rigid optical screen, soft
The connection cloth of matter, be disposed around optical screen side screen frame and multiple flexible connectors；Optical screen is realized in this way
Fixation while there is preferable flatness, be conducive to improve Projection Display quality.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (12)
1. a kind of projection screen, which is characterized in that including rigid optical screen, soft rigid connection portion, be disposed around the optics
The screen frame of the side of screen and multiple flexible connectors；The first end in the soft rigid connection portion and the optics
Screen is fixedly connected, and the second end stretches out the edge extent of the optical screen；The first of each flexible connector
End is connected with the second end in the soft rigid connection portion, and second end is connect with the screen frame；It is described soft rigid
The pulling force that property interconnecting piece transmits the flexible connector makes the optical screen be stretched to formation state.
2. projection screen according to claim 1, which is characterized in that the first end in the soft rigid connection portion and institute
It states optical screen to be fixedly connected, specifically include：The front of the optical screen is projection light-receiving surface, the optical screen
The back side is bonded with the soft rigid connection portion first end, and the soft rigid connection portion first end at least covers the light
Learn the region corresponding with positive light area at the screen back side.
3. projection screen according to claim 2, which is characterized in that the soft rigid connection portion first end also covers
The lower edge margin of the upper edge region of the optical screen and the optical screen.
4. projection screen according to claim 1, which is characterized in that the first end in the soft rigid connection portion and institute
It states optical screen to be fixedly connected, specifically include：The edge of the optical screen and the soft rigid connection portion first end
Portion is bonded.
5. projection screen according to claim 4, which is characterized in that the front of the optical screen and/or the side at the back side
Edge is bonded with the first end in the soft rigid connection portion.
6. projection screen according to claim 5, which is characterized in that multiple flexible connectors are arranged at intervals on described
The both sides up and down of optical screen.
7. projection screen according to claim 3, which is characterized in that multiple flexible connectors are arranged at intervals on described
The both sides up and down of optical screen；Alternatively, multiple flexible connectors are arranged at intervals on the surrounding of the optical screen.
8. according to claim 1-7 any one of them projection screens, which is characterized in that the screen frame includes outer support
Portion, the outer support portion is supported on the back side at the edge of the optical screen, and the edge of the outer support portion is located at institute
Except the edge extent for stating optical screen, the second end in the soft rigid connection portion extend out to the outer of the outer support portion
It is reversely bent behind side, to be connect with the flexible connector behind the edge for wrapping up the outer support portion.
9. projection screen according to claim 8, which is characterized in that the second end in the soft rigid connection portion is arranged
There is at least one rigid anchor for being connected with the flexible connector.
10. according to claim 1-7 any one of them projection screens, which is characterized in that during the section of the screen frame is
Empty shape, and reinforcing beam or ribs are provided in the internal cavities of the screen frame.
11. according to claim 9 any one of them projection screen, which is characterized in that the soft rigid connection portion is soft cloth.
12. a kind of projection display system, which is characterized in that projected including projection arrangement and claim 1-11 any one of them
Screen, the projection arrangement are used to project projected picture to the optical screen of the projection screen.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011212005.2A CN112162458B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
| CN201810225788.4A CN108681201B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
| CN202011212002.9A CN112162457B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
| PCT/CN2018/094512 WO2019178982A1 (en) | 2018-03-19 | 2018-07-04 | Projection screen and projection display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810225788.4A CN108681201B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011212002.9A Division CN112162457B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
| CN202011212005.2A Division CN112162458B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108681201A true CN108681201A (en) | 2018-10-19 |
| CN108681201B CN108681201B (en) | 2020-11-10 |
Family
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810225788.4A Active CN108681201B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
| CN202011212002.9A Active CN112162457B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
| CN202011212005.2A Active CN112162458B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011212002.9A Active CN112162457B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
| CN202011212005.2A Active CN112162458B (en) | 2018-03-19 | 2018-03-19 | Projection screen and projection display system |
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| Country | Link |
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| CN (3) | CN108681201B (en) |
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| WO2020042961A1 (en) * | 2018-03-19 | 2020-03-05 | 青岛海信激光显示股份有限公司 | Projection screen and projection system |
| US20200204769A1 (en) * | 2018-12-19 | 2020-06-25 | Hisense Laser Display Co., Ltd. | Screen frame and laser projection display device |
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| CN112114489A (en) * | 2019-06-19 | 2020-12-22 | 青岛海信激光显示股份有限公司 | Projection screen, projection system and assembly method of projection screen |
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Also Published As
| Publication number | Publication date |
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| CN112162458A (en) | 2021-01-01 |
| CN112162457B (en) | 2022-04-22 |
| CN108681201B (en) | 2020-11-10 |
| CN112162457A (en) | 2021-01-01 |
| CN112162458B (en) | 2022-05-10 |
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