CN108628082A - A kind of rollable optical projection screen of flexibility - Google Patents
A kind of rollable optical projection screen of flexibility Download PDFInfo
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- CN108628082A CN108628082A CN201810295294.3A CN201810295294A CN108628082A CN 108628082 A CN108628082 A CN 108628082A CN 201810295294 A CN201810295294 A CN 201810295294A CN 108628082 A CN108628082 A CN 108628082A
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- inside casing
- outline border
- flexible membrane
- optical projection
- projection screen
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- 230000003287 optical effect Effects 0.000 title claims abstract description 54
- 239000000463 material Substances 0.000 claims abstract description 65
- 239000012528 membrane Substances 0.000 claims abstract description 51
- 239000000758 substrate Substances 0.000 claims abstract description 39
- 229910052751 metal Inorganic materials 0.000 claims abstract description 13
- 239000002184 metal Substances 0.000 claims abstract description 13
- 239000000853 adhesive Substances 0.000 claims abstract description 10
- 230000001070 adhesive effect Effects 0.000 claims abstract description 10
- 239000002657 fibrous material Substances 0.000 claims description 12
- 239000012788 optical film Substances 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
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- 238000005452 bending Methods 0.000 claims description 4
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- 238000005507 spraying Methods 0.000 claims description 3
- 238000004904 shortening Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
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- 239000004033 plastic Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
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- 239000000835 fiber Substances 0.000 description 1
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
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Classifications
-
- 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
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
-
- 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
- G03B21/60—Projection screens characterised by the nature of the surface
-
- 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
- G03B21/60—Projection screens characterised by the nature of the surface
- G03B21/602—Lenticular screens
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Overhead Projectors And Projection Screens (AREA)
Abstract
The invention discloses a kind of rollable optical projection screens of flexibility, including rollable flexible membrane, elastic element and metal framework；Metal framework includes rectangular inside casing and outline border, and outline border is suspended in inside casing periphery, is connected by screw between inside casing and outline border completely；The back side of inside casing is respectively equipped with an aduncate groove on four sides inside casing edge；The flexible membrane back side is adhesive with one layer of substrate material；Gap of the edge of substrate material across inside casing and outline border, and elastic element is connected by hook；The other end of elastic element is hooked by linking up in groove.The present invention is using inside casing collocation outline border, outline border is suspended in this structure in inside casing periphery completely, it ensure that there are certain gaps between inside casing and outline border, convenient for substrate material when temperature change is expanded with heat and contract with cold, can between outline border and inside casing free telescopic slide, the deflection for elongating or shortening variation is then offset by the deformation of elastic element, and screen itself is made to be in tensioning state always.
Description
Technical field
The invention belongs to field of electronic display Projection Display branch, more particularly to a kind of rollable optical projection screen of flexibility
Curtain.
Background technology
It is higher and higher to projection display screen size requirements with the continuous promotion of people's living standard.And traditional liquid
Crystalline substance display, and the OLED that is developing is shown now or QLED is shown etc. that there are technical difficulty all in terms of large scale is too big
Or too expensive problem, greatly limit the demand of ordinary populace.And along with the development of optical projection display technology, light
Projection Display is learned to have had been provided with the equal display effect of liquid crystal display, and optical projection is aobvious in terms of large scale is shown
It is lower to be shown as this, receives the favor of major white appliances enterprise.
Laser projection tv is also referred to as laser television, laser movie theatre etc., it is by ultrashort burnt laser projection and projection screen group
At for the performance reached, generally using projection optics screen.On the one hand there is high increase from performance projection optics screen
The characteristics of benefit and highly resistance ambient light, greatly improve brightness, color saturation and contrast that image is shown.On the other hand it throws
The essence of shadow optical screen is large-sized precision optics, by the optical diaphragm of single-layer or multi-layer, board group at.In addition to length and width
Except the size in direction is big, thickness is also millimetre-sized.It can not crimp or be difficult to crimp, or damage is brought after curling.For
The planarization and aesthetics of screen when ensureing to use, generally using being all optics mask is fixed on substrate, as plastic-aluminum is multiple
Plywood, aluminum honeycomb panel embody a kind of form of thick plate-like, referred to as hard screen.The product of this form to packaging, transport, upstairs, peace
Dress brings huge difficulty, while of high cost, waste material, not energy-efficient environmental protection.
The development of modern society's urbanization, more and more people have lived in high building, and are used for manned elevator generally all
It can not load large-sized object so that large-sized optical projection, which is shielded firmly into family, becomes extremely difficult.And use flexible material
It is hard that size and weight can be narrowed down to same display size by the large scale optical projection screen that matter makes by way of curling
/ 10th of screen solve large scale optical projection and shields that packaging volume is excessive, too heavy transportation cost is high and carrying firmly well
The problem for hardly possible of registering one's residence.
Application No. is CN201410319325.6 patent applications to disclose a kind of Rimless frame curtain, and core is structure one
Curtain is tensioned and stretches tight on frame by a frame, the application method of this namely present common projection screen.Such as white plastic curtain, glass
Pearl curtain, metal curtain etc..But its front for needing for curtain to be covered in rectangular body structure, edge is turned down to the rectangle master
The back side of body structure is simultaneously fixedly connected with the back side of the frame, inconvenient to use, and is easy to damage curtain.
Application No. is the applications for a patent for invention of CN201611015719.8 to disclose a kind of ultrashort out-of-focus projection's optical film of flexibility
And its screen, emphasis elaborate that screen is made of rollable material.Although solving screen size and transportation problem,
The program is that directly optical film is fixed on rectangular frame in use, when environment change or optical film hair
When raw deformation, manual adjustment optics curtain is needed to keep its smooth, using being inconvenient.
Invention content
It is an object of the invention to overcome the deficiencies of the prior art and provide a kind of using inside casing collocation outline border, and outline border is complete
It is suspended in this special construction above inside casing so that the substrate material of tensioning, can be in outline border when temperature change is expanded with heat and contract with cold
The free telescopic slide between inside casing ensures the rollable light of flexibility of the flexible rollable better planarization of optical projection screen
Learn projection screen.
The purpose of the present invention is achieved through the following technical solutions：A kind of rollable optical projection screen of flexibility, packet
Include rollable flexible membrane, elastic element and metal framework；
The metal framework includes rectangular inside casing and outline border, and outline border is suspended in inside casing periphery completely, inside casing with outline border not
Contact, is connected by screw between inside casing and outline border；The back side of inside casing is respectively equipped with one on four sides inside casing edge
The aduncate groove of item；
The flexible membrane back side is adhesive with one layer of substrate material, and the size of substrate material is more than flexible membrane；Substrate material
Gap of the edge of material across inside casing and outline border, and elastic element is connected by hook；The other end of elastic element passes through
Hook hooks in groove.
Further, it is cased with insulation sleeve on the screw of the connection inside casing and outline border.The substrate material is equipped with for spiral shell
Follow closely across trepanning, the size of trepanning is more than the size of screw.
Further, the flexible membrane is made of the optical film layer coated with the fine optical texture of multilayer, is wrapped successively
Include hardened layer, the first PET base membrane layers, color layers, the 2nd PET base membrane layers, optical structure layers and metallic reflector, the optics knot
Structure layer includes Fresnel structure, linear light grid structure or structure of reflection reducting coating；The thickness of the flexible membrane is less than 2mm.
The metallic reflector is coated in optical texture using high reflection material by the processing technology of spraying, printing or plating
On layer；Metallic reflector need to ensure that the gain of flexible membrane central point is more than 0.8, and the computational methods of the gain are：In darkroom
Under the conditions of, to flexible membrane) projection standard white field picture, the then brightness L of test screen center respectively5With ray machine illumination
l5, calculate gain：Gain=L5*π/l5。
Further, the substrate material is pasted anti-in metal by adhesive sticker, AB glue, optic-solidified adhesive or EVA hot-melt adhesive
It penetrates on layer, for protecting metallic reflector, and support and flattening flexible membrane；
The substrate material need to meet in the case where every square millimeter by horizontal direction pulling force 1.8X10-4N, deflection
Less than or equal to 0.01 millimeter；
Substrate material includes fibrous material, PET or TPU：When selecting fibrous material, the warp of fibrous material is parallel to soft
The long side of property diaphragm, the weft of fibrous material are parallel to the short side of flexible membrane；When selecting PET or TPU materials, need to meet
Elasticity modulus >=3.0Gpa of PET or TPU；
The thickness h of substrate material meets 0 ＜ h≤0.25mm.
Further, the inside casing and outline border need to meet under the pressure of 380N, and the bending deformation quantity of material is less than or waits
In 0.24 millimeter, the yield strength of material is greater than or equal to 100Mpa.
The angle of inclination a of the rectangular inverted trapezoidal shape in cross section of the inside casing, right angle inverted trapezoidal oblique waist and vertical direction is
1 °≤a≤3 °, the oblique waist of right angle inverted trapezoidal is located at the side adjacent with flexible membrane.
The size of the inside casing is more than the size of flexible membrane, and the difference of the two size is equal to 4 times of flexible membrane thickness.
Further, the elasticity modulus of the elastic element is greater than or equal to 0.9.
The beneficial effects of the invention are as follows：
1, it is arranged in pairs or groups outline border using inside casing, outline border is suspended in above inside casing completely, and it is this special to be connect with inside casing by screw
Structure ensure that there are certain gaps between inside casing and outline border, expand with heat and contract with cold convenient for the substrate material of tensioning in temperature change
When, can between outline border and inside casing free telescopic slide, and corresponding size elongate or shorten the deflection of variation then by
The deformation of elastic element is offset, and screen itself is made to be in tensioning state always, ensures that flexible rollable optical projection screen is more preferable
Planarization, greatly extend the service life of the fibrous substrate material at the flexible membrane back side；
2, the rollable optical projection screen of flexibility of the invention, solves large scale optical projection and shields package body firmly well
Product is excessive, too heavy transportation cost is high and carries difficult problem of registering one's residence, and realizes the super of flexible rollable optical projection screen assembly
High planarization, meanwhile, the significant increase service life of flexible rollable optical projection screen.
Description of the drawings
Fig. 1 is the optical projection screen structure schematic diagram of the present invention；
Fig. 2 is the optical projection screen side structure schematic diagram of the present invention；
Fig. 3 is the flexible membrane structural schematic diagram of the present invention；
Fig. 4 is the inside casing connection diagram of the present invention；
Reference sign：1- flexible membranes, 2- elastic elements, 3- metal frameworks, 31- inside casings, 32- outline borders, 33- are recessed
Slot, 4- substrate materials, 5- screws.
Specific implementation mode
The rollable optical projection screen of flexibility of the present invention, it is intended to solve large scale optical projection and shield packaging volume mistake firmly
Greatly, too heavy transportation cost is high and carries difficult problem of registering one's residence, and to solve these problems the technological difficulties for needing actually to solve is：
1, large-sized optical projection screen will be convenient for curling, and cannot change the performance of screen after crimping；2, large-sized optics
It wants to flatten after projection screen curling, reaches extraordinary flattening planarization；What 3, large scale optical projection screen used is resistance to
Long property, for example solution screen is needed to use middle frame deformation, glue-line problems of crack；4, large-sized optical projection screen will be just
In production and transportation.
Core of the invention is one layer of fiber lining of back side whole face stickup in the flexible membrane coated with fine optical texture
On the one hand bottom material, the fibrous substrate material play the role of the flexible rollable optical projection screen back metal coating of protection,
For another aspect user when assembling the rollable optical projection screen of flexibility, fibrous substrate material also acts as support and flattening flexibility
The effect of rollable optical projection screen.Meanwhile the frame structure of the rollable optical projection screen of the flexibility is arranged in pairs or groups using inside casing
The special structure form of outline border, the special structure form are that outline border is suspended in above inside casing completely, are connect with inside casing by screw,
Ensure between inside casing and outline border there are certain gap, convenient for tensioning flexible substrate material when temperature change is expanded with heat and contract with cold,
Can between outline border and inside casing free telescopic slide, and the deflection that corresponding size elongates or shortens variation is then elastic
The deformation of element is offset, and screen itself is made to be in tensioning state always, is ensured the better planarization of flexible screen and is greatly prolonged
The service life of the fibrous material at the flexible membrane back side is grown.
The technical solution further illustrated the present invention below in conjunction with the accompanying drawings.
As depicted in figs. 1 and 2, a kind of rollable optical projection screen of flexibility, which is characterized in that including rollable flexibility
Diaphragm 1, elastic element 2 and metal framework 3；
The metal framework 3 includes rectangular inside casing 31 and outline border 32, and outline border 32 is suspended in 31 periphery of inside casing, inside casing completely
31 do not contact with outline border 32, are connected by screw 5 between inside casing 31 and outline border 32；The back side of inside casing 31 close to inside casing edge four
An aduncate groove 33 is respectively equipped on a side；
1 back side of the flexible membrane is adhesive with one layer of substrate material 4, and the size of substrate material 4 is more than flexible membrane 1；Lining
Gap of the edge of bottom material 4 across inside casing 31 and outline border 32, and elastic element 2 is connected by hook；Elastic element 2
The other end is hooked by linking up in groove 33.
Be cased with insulation sleeve on the screw of connection inside casing 31 and the outline border 32, with ensure outline border be suspended in completely inside casing it
On, naturally it is also possible to obtain the structure type that outline border is not directly contacted with inside casing using other isolated materials or structure type.
The substrate material 4 is equipped with the trepanning that is passed through for screw, the size of trepanning be more than screw (put on insulation sleeve it
Size afterwards) makes substrate material 4 not contacted with plastic insulation covering, ensures that substrate material 4 be free to stretch, discharges planted agent
Power.
This inside casing and the discontiguous special construction of outline border can ensure that there are certain gaps between inside casing and outline border, just
In tensioning substrate material when temperature change is expanded with heat and contract with cold, can between outline border and inside casing free telescopic slide, and phase
The deflection that the size answered elongates or shortens variation is then offset by the deformation of elastic element, and screen itself is made to be in tensioning shape always
State ensures the better planarization of flexible screen, greatly extends the service life of flexible membrane and its substrate material at the back side.
As shown in figure 3, the flexible membrane 1 of the present invention is made of the optical film layer coated with the fine optical texture of multilayer,
It is described successively including hardened layer, the first PET base membrane layers, color layers, the 2nd PET base membrane layers, optical structure layers and metallic reflector
Optical structure layers include a variety of optical texture forms such as Fresnel structure, linear light grid structure or structure of reflection reducting coating, but are needed full
The screen diaphragm of the various structure compositions of foot must be flexible rollable；The thickness of the flexible membrane 1 is less than 2mm.Screen is rolled up
For coil diameter when more than or equal to 210mm, maximum bending deformation quantity is less than or equal to 2mm after song, can effectively ensure that screen flattens, still
For the ease of production and transportation, coil diameter is no more than 400mm.
The metallic reflector is using high reflection material (including aluminium, gold or the contour reflecting material of silver) by spraying, printing
Or the processing technology of plating is coated in optical structure layers；Metallic reflector need to ensure that the gain of 1 central point of flexible membrane is more than
0.8, the computational methods of the gain are：Under dark room conditions, standard white field picture is projected to flexible membrane 1, is then surveyed respectively
Try the brightness L at center's point of screen5(unit：cd/m2) and ray machine illumination l5(unit：Lx), gain is calculated：Gain=L5*π/l5。
Further, the substrate material 4 is pasted anti-in metal by adhesive sticker, AB glue, optic-solidified adhesive or EVA hot-melt adhesive
It penetrates on layer；For protecting metallic reflector, another aspect user when assembling flexibility rollable optical projection screen support with
Flatten flexible membrane 1；Should be noted it must is that the defects of fold, bubble, impurity is pasted and do not had to whole face when being pasted, so as to
Ensure the durability that screen uses.
The substrate material 4 need to meet in the case where every square millimeter by horizontal direction pulling force 1.8X10-4N, deflection
Less than or equal to 0.01 millimeter, flexible membrane 2 could be convenient for crimp and flatten in this way；
Substrate material 4 can be flexible any material, include mainly fibrous material, PET or TPU：When selection undulation degree
When material, the warp of fibrous material is parallel to the long side of flexible membrane 1, and the weft of fibrous material is parallel to the short side of flexible membrane 1；
When selecting PET or TPU materials, elasticity modulus >=3.0Gpa of PET or TPU need to be met, reduce material and be stretched the amount of deformation；
Substrate material 4 will be convenient for screen to crimp, and not influence screen performance and flattening planarization, substrate material 4 after crimping
Thickness h should meet 0 ＜ h≤0.25mm.
Further, the material of inside casing 31 and outline border 32 can be stainless steel, aluminium alloy or the preferable material of other rigidity,
Inside casing 31 and outline border 32 need to meet under the pressure of 380N, and the bending deformation quantity of material is less than or equal to 0.24 millimeter, material
Yield strength is greater than or equal to 100Mpa, just can guarantee the durability that screen uses in this way.The cross section of the inside casing 31 is not
Rectangle, but the angle of inclination a of at right angles inverted trapezoidal shape, right angle inverted trapezoidal oblique waist and vertical direction is 1 °≤a≤3 °, right angle
The oblique waist of inverted trapezoidal is located at the side adjacent with flexible membrane 1, as shown in Figure 2.4 angles stitching portion of inside casing 31 is using double corner fittings
Hidden connecting structure, the effective bonding strength and stability for enhancing inside casing, as shown in Figure 4.
The size of the inside casing 31 is more than the size of flexible membrane 1, and the difference of the two size is equal to the 4 of 1 thickness of flexible membrane
Times.
Further, the elasticity modulus of the elastic element 2 is greater than or equal to 0.9, can use the materials such as rubber band, spring
Material.
Those of ordinary skill in the art will understand that the embodiments described herein, which is to help reader, understands this hair
Bright principle, it should be understood that protection scope of the present invention is not limited to such specific embodiments and embodiments.This field
Those of ordinary skill can make according to the technical disclosures disclosed by the invention various does not depart from the other each of essence of the invention
The specific variations and combinations of kind, these variations and combinations are still within the scope of the present invention.
Claims (10)
1. a kind of rollable optical projection screen of flexibility, which is characterized in that including rollable flexible membrane (1), elastic element
(2) and metal framework (3)；
The metal framework (3) includes rectangular inside casing (31) and outline border (32), and outline border (32) is suspended in inside casing (31) outside completely
It encloses, inside casing (31) is not contacted with outline border (32), is connected by screw between inside casing (31) and outline border (32)；The back side of inside casing (31)
It is respectively equipped with an aduncate groove (33) on four sides inside casing edge；
Flexible membrane (1) back side is adhesive with one layer of substrate material (4), and the size of substrate material (4) is more than flexible membrane
(1)；Gap of the edge of substrate material (4) across inside casing (31) and outline border (32), and elastic element is connected by hook
(2)；The other end of elastic element (2) is hooked by linking up in groove (33).
2. a kind of rollable optical projection screen of flexibility according to claim 1, which is characterized in that the connection inside casing
(31) and it is cased with insulation sleeve on the screw of outline border (32).
3. a kind of rollable optical projection screen of flexibility according to claim 2, which is characterized in that the substrate material
(4) it is equipped with the trepanning passed through for screw, the size of trepanning is more than the size of screw.
4. a kind of rollable optical projection screen of flexibility according to claim 1, which is characterized in that the flexible membrane
(1) it is made of the optical film layer coated with the fine optical texture of multilayer, includes hardened layer, the first PET base membrane layers, color successively
Layer, the 2nd PET base membrane layers, optical structure layers and metallic reflector, the optical structure layers include Fresnel structure, line grating knot
Structure or structure of reflection reducting coating；The thickness of the flexible membrane (1) is less than 2mm.
5. a kind of rollable optical projection screen of flexibility according to claim 4, which is characterized in that the metallic reflector
It is coated in optical structure layers by the processing technology of spraying, printing or plating using high reflection material；Metallic reflector needs to ensure
The gain of flexible membrane (1) central point is more than 0.8, and the computational methods of the gain are：Under dark room conditions, to flexible membrane
(1) standard white field picture is projected, then the brightness L of test screen center respectively5With ray machine illumination l5, calculate gain：Gain
=L5*π/l5。
6. a kind of rollable optical projection screen of flexibility according to claim 4 or 5, which is characterized in that the substrate material
Material (4) is pasted by adhesive sticker, AB glue, optic-solidified adhesive or EVA hot-melt adhesive on metallic reflector, for protecting metallic reflection
Layer, and support and flattening flexible membrane (1)；
The substrate material (4) need to meet in the case where every square millimeter by horizontal direction pulling force 1.8X10-4N, and deflection is small
In or equal to 0.01 millimeter；
Substrate material (4) includes fibrous material, PET or TPU：When selecting fibrous material, the warp of fibrous material is parallel to soft
The long side of property diaphragm (1), the weft of fibrous material are parallel to the short side of flexible membrane (1)；When selecting PET or TPU materials, need
Meet elasticity modulus >=3.0Gpa of PET or TPU；
The thickness h of substrate material (4) meets 0 ＜ h≤0.25mm.
7. a kind of rollable optical projection screen of flexibility according to claim 1, which is characterized in that the inside casing (31) and
Outline border (32) need to meet under the pressure of 380N, and the bending deformation quantity of material is less than or equal to 0.24 millimeter, and the surrender of material is strong
Degree is greater than or equal to 100Mpa.
8. a kind of rollable optical projection screen of flexibility according to claim 1 or claim 7, which is characterized in that the inside casing
(31) the angle of inclination a of the rectangular inverted trapezoidal shape in cross section, right angle inverted trapezoidal oblique waist and vertical direction is 1 °≤a≤3 °, directly
The oblique waist of angle inverted trapezoidal is located at the side adjacent with flexible membrane (1).
9. a kind of rollable optical projection screen of flexibility according to claim 1, which is characterized in that the inside casing (31)
Size is more than the size of flexible membrane (1), and the difference of the two size is equal to 4 times of flexible membrane (1) thickness.
10. a kind of rollable optical projection screen of flexibility according to claim 1, which is characterized in that the elastic element
(2) elasticity modulus is greater than or equal to 0.9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295294.3A CN108628082B (en) | 2018-04-04 | 2018-04-04 | Flexible optical projection screen that can curl |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810295294.3A CN108628082B (en) | 2018-04-04 | 2018-04-04 | Flexible optical projection screen that can curl |
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| Publication Number | Publication Date |
|---|---|
| CN108628082A true CN108628082A (en) | 2018-10-09 |
| CN108628082B CN108628082B (en) | 2021-02-19 |
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ID=63704848
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810295294.3A Active CN108628082B (en) | 2018-04-04 | 2018-04-04 | Flexible optical projection screen that can curl |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111983881A (en) * | 2020-07-21 | 2020-11-24 | 清远市星徽精密制造有限公司 | Adjustable folding type light-resistant curtain mounting mechanism |
| CN112019784A (en) * | 2020-08-27 | 2020-12-01 | 海信视像科技股份有限公司 | Television receiver |
| CN112578626A (en) * | 2020-12-22 | 2021-03-30 | 江苏集萃智能液晶科技有限公司 | High polarization maintaining optical film and projection screen |
| CN113406852A (en) * | 2020-03-16 | 2021-09-17 | 青岛海信激光显示股份有限公司 | Projection device |
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