WO2023046183A1 - Appareil de projection - Google Patents

Appareil de projection Download PDF

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Publication number
WO2023046183A1
WO2023046183A1 PCT/CN2022/121452 CN2022121452W WO2023046183A1 WO 2023046183 A1 WO2023046183 A1 WO 2023046183A1 CN 2022121452 W CN2022121452 W CN 2022121452W WO 2023046183 A1 WO2023046183 A1 WO 2023046183A1
Authority
WO
WIPO (PCT)
Prior art keywords
sub
tensioning
rotating
frame
opposite
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2022/121452
Other languages
English (en)
Chinese (zh)
Inventor
代琪
李建军
杨长明
陈波
张海鹏
侯蕊
王超
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qingdao Hisense Laser Display Co Ltd
Original Assignee
Qingdao Hisense Laser Display Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN202111136835.6A external-priority patent/CN113741133B/zh
Priority claimed from CN202111397978.2A external-priority patent/CN116149126B/zh
Priority claimed from CN202111612970.3A external-priority patent/CN116360199A/zh
Priority claimed from CN202111612966.7A external-priority patent/CN116360198A/zh
Application filed by Qingdao Hisense Laser Display Co Ltd filed Critical Qingdao Hisense Laser Display Co Ltd
Priority to CN202280060248.XA priority Critical patent/CN117957493A/zh
Publication of WO2023046183A1 publication Critical patent/WO2023046183A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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

Definitions

  • the present disclosure relates to the field of display technology, and in particular, to a display panel and a display device.
  • the present disclosure provides a projection device.
  • the projection device includes a projection screen and an optical engine.
  • the projection screen includes a frame, a curtain and a tensioning mechanism.
  • the frame includes two first frames opposite to each other and two second frames opposite to each other, and the ends of the first frames are movably connected to the ends of the second frames.
  • the edge of the screen is connected to one side of the frame.
  • the tension mechanism and the frame are arranged on the same side of the curtain; the tension mechanism is at least connected to the two opposite first frames or the two opposite second frames; the The tensioning mechanism is configured to drive the two opposite first frames or the two opposite second frames to move away from each other.
  • the optical engine is configured to emit light beams to the projection screen.
  • Fig. 2 is a structural diagram of a projection screen provided according to some embodiments of the present disclosure.
  • Fig. 9 is a structural diagram of a rotating connector provided according to some embodiments of the present disclosure.
  • Fig. 14 is a structural diagram of a connection between a tension member and a rotating connector according to some embodiments of the present disclosure
  • Fig. 18 is a structural diagram of the tension member shown in Fig. 15;
  • Figure 19 is a side view of the tensioner shown in Figure 18;
  • Fig. 20 is a connection structure diagram of another tension member and a sub-support rod according to some embodiments of the present disclosure.
  • Fig. 21 is a partial enlarged view of Fig. 20 at circle B';
  • Fig. 22 is a structural diagram of another projection screen provided according to some embodiments of the present disclosure.
  • Figure 42 is a structural diagram of another surface layer provided according to some embodiments of the present disclosure.
  • one of the first limiting member 332d and the second limiting member 332e includes a limiting cylinder b2, a ball b3 and a compression spring (not shown); the first limiting member 332d and the second limiting member
  • the other of the pieces 332e includes a first limiting hole b1.
  • the limiting cylinder b2 is a hollow cylindrical structure, the compression spring is fixed in the limiting cylinder b2, a part of the ball b3 is set inside the limiting cylinder b2, and the other part is set outside the limiting cylinder b2, and the ball b3 is connected to the end of the compression spring.
  • the first limiting member 332d is a limiting screw c1
  • the second limiting member 332e is a first limiting hole b1.
  • the first limiting member 332d is the first limiting hole b1
  • the second limiting member 332e is a limiting screw.
  • the following embodiments are schematically illustrated by taking the second limiting member 332e as the limiting screw c1 and the first limiting member 332d as the first limiting hole b1 as an example.
  • the first limiting member 332d and the second limiting member 332e include a first magnet d1.
  • the two first magnets d1 are respectively arranged in the limiting cylinder b2 and the first limiting hole b1, and the polarities of the opposite sides of the two first magnets d1 are opposite, that is, the first magnet d1 arranged in the limiting cylinder b2
  • the polarity close to the opening of the limiting cylinder b2 is opposite to that of the first magnet d1 disposed in the first limiting hole b1 close to the opening.
  • the fixing member 31 includes a first accommodating cavity 310 , a second rotating body 311 and at least two connecting rods 312 , and the second rotating body 311 and at least two connecting rods 312 are arranged on Inside the first accommodating cavity 310 , the first accommodating cavity 310 includes side walls. At least two connecting rods 312 correspond to the opposite first frame 11 or second frame 12, and one end of the connecting rod 312 is connected to the first frame 11 or the second frame 12, and the other end of the connecting rod 312 is connected to the second rotating body 311 abutment.
  • the second rotating body 311 is configured to drive the connecting rod 312 to move along the length direction of the connecting rod 312 when the second rotating body 311 rotates, so as to adjust the distance between the opposite first frame 11 or the second frame 12 .
  • the second rotating body 311 includes a first supporting shaft 3111 and a first rotating body 3112 , and the first rotating body 3112 is sheathed on the first supporting shaft 3111 .
  • the first support shaft 3111 is fixed on the side wall of the first accommodating cavity 310
  • the first rotating body 3112 includes a plurality of third protrusions e5 corresponding to the connecting rods 312, and the third protrusions e5 correspond to the corresponding connecting rods 312 end abutment.
  • the first rotating member body 3112 is configured to drive the corresponding connecting rod 312 to move along the length direction of the connecting rod 312 through the third protrusion e5 when rotating around the first supporting shaft 3111 .
  • the fixing member 31 includes a first sliding groove 313, and the first sliding groove 313 is arranged on the side of the fixing member 31 away from the curtain 2, and is connected to the first container.
  • the cavity 310 is in communication.
  • the second rotating body 311 further includes a first adjusting rod 3113 , and the first adjusting rod 3113 passes through the first slide slot 313 and is connected with the first rotating member body 3112 .
  • the first adjusting rod 3113 is configured to slide in the first slide slot 313 to drive the first rotating member body 3112 to rotate around the first supporting shaft 3111 .
  • the operator can conveniently use the first adjusting rod 3113 to drive the first rotating member body 3112 to rotate.
  • the operator pushes the first adjusting rod 3113 to slide in the first chute 313, and then the first adjusting rod 3113 drives the first rotating member body 3112 to rotate, and the first adjusting rod 3113 rotates.
  • the third protrusion e5 on the rotating member body 3112 drives the connecting rod 312 to move along the length direction of the connecting rod 312 , thereby adjusting the distance between the first frame 11 and the second frame 12 which are oppositely arranged.
  • the first adjusting rod 3113 is connected to the first rotating member body 3112 through the second threaded hole b6.
  • the operator first turns the first adjusting rod 3113 so that the end of the first adjusting rod 3113 is out of contact with the side wall of the first accommodating cavity 310 of the fixing member 31 . Then, slide the first adjusting rod 3113 in the first chute 313 to drive the first rotating member body 3112 to rotate, and then drive the connecting rod 312 to move along the length direction of the connecting rod 312 .
  • the first adjusting rod 3113 is rotated so that the end of the first adjusting rod 3113 abuts against the side wall of the first accommodating cavity 310 , and then the second rotating body 311 is fixed.
  • the first accommodating cavity 310 includes at least two guide bosses 314, and the at least two guide bosses 314 are disposed on the side wall of the first accommodating cavity 310, and are disposed on Connect opposite sides of the rod 312 . That is, the connecting rod 312 is located between two opposite guide bosses 314 , and the distance between the two opposite guide bosses 314 is equal to the width of the connecting rod 312 . Thus, the connecting rod 312 moves along the length direction of the connecting rod 312 under the guidance of the two oppositely disposed guide bosses 314 , which can effectively improve the stability of the connecting rod 312 moving.
  • the fixing member 31 further includes at least two openings 315, the at least two openings 315 are arranged on two opposite sides of the fixing member 31, and correspond to the connecting rods 312, and the connecting rods 312 A part of it can protrude from the fixing part 31 through the opening 315 .
  • the fixing member 31 can play a role of modifying the part of the second rotating body 311 disposed in the first accommodating cavity 310 .
  • the screen 2 is prone to fatigue deformation after long-term use, or when the manufacturing accuracy of the screen 2 is low, a tension member needs to be provided for auxiliary tensioning.
  • the tensioning mechanism 3 further includes a tensioning member 34 .
  • the tension member 34 includes a first sub-tension member 341 and a second sub-tension member 342 , and the first sub-tension member 341 and the second sub-tension member 342 are arranged opposite to each other.
  • the tensioning member 34 is configured to drive the frame 1 to move away from the fixing member 31 , so as to adjust the tension of the screen 2 and play an auxiliary tensioning effect on the screen 2 .
  • the second protrusion e2 is disposed on an end of the second sub-tensioning member 342 close to the first sub-tensioning member 341 .
  • the elastic component 343 is a compression spring, which is sleeved on the first protrusion e1 and the second protrusion e2. Therefore, the elastic member 343 can only move in the length direction of the support rod 32 , and it is difficult to shake in the direction perpendicular to the length of the support rod 32 . In this way, the stability of the connection between the first sub-tensioner 341 and the second sub-tensioner 342 can be ensured.
  • the elastic component 343 can also be an elastic piece.
  • the tension member 34 further includes two second magnets 344 .
  • Two second magnets 344 are disposed between the first sub-tensioner 341 and the second sub-tensioner 342 .
  • the first sub-tensioner 341 is movably connected with the second sub-tensioner 342 through the second magnet 344 .
  • One end of a second magnet 344 is connected with the first sub-tensioner 341, and one end of the other second magnet 344 is connected with the second sub-tensioner 342, and the opposite sides of the two second magnets 344 have the same polarity . In this way, the connection stability of the first sub-tensioner 341 and the second sub-tensioner 342 can be ensured.
  • the first sub-tensioning member 341 includes a first groove e3 and a second guide groove e4, and the first groove e3 is arranged in the direction where the first sub-tensioning member 341 faces.
  • the second guiding groove e4 is disposed on the sidewall of the first sub-tensioning part 341 and communicates with the first groove e3 .
  • the projection screen 100 also includes a second guide member G2. When at least part of the second sub-tensioner 342 is located in the first groove e3, the second guide G2 passes through the second guide groove e4 and connects with the second sub-tensioner. Part 342 is fixedly connected.
  • first sub-tensioning member 341 and the second sub-tensioning member 342 are made less likely to shake in the length direction perpendicular to the second guide groove e4, so that the first sub-tensioning member 341 and the second sub-tensioning member 341
  • the connection stability of the fastener 342 is relatively good.
  • the tension member 34 further includes a third rotating body 345 .
  • the first sub-tensioning part 341 is rotationally connected with the third rotating body 345, and the first sub-tensioning part 341 is slidably connected with the second sub-tensioning part 342.
  • the third rotating body 345 is configured to drive the second sub-tensioning member 342 to slide relative to the first sub-tensioning member 341 when the third rotating body 345 rotates, so as to adjust the distance between the frame 1 and the fixing member 31 .
  • the tension member 34 further includes a second accommodation cavity 346 , and the second accommodation cavity 346 is disposed in the tension member 34 where the first tension member 341 faces the second tension member.
  • the third rotating body 345 is disposed in the second accommodating cavity 346 and is rotatably connected to a side wall of the second accommodating cavity 346 .
  • a part of the second sub-tensioning member 342 is located in the second accommodating chamber 346, and the rest is located outside the second accommodating chamber 346, and the part of the second sub-tensioning member 342 located in the second accommodating chamber 346 is the same as the second accommodating chamber 346.
  • the three rotating bodies 345 are in contact.
  • the third rotating body 345 can drive the second sub-tensioning member 342 to slide relative to the first sub-tensioning member 341, so as to The adjustment of the distance between the frame 1 and the fixing member 31 is realized.
  • the third rotating body 345 includes a second supporting shaft 3451 and a second rotating body 3452 , and the second rotating body 3452 is sleeved on the second supporting shaft 3451 .
  • the second support shaft 3451 is fixed on the side wall of the second accommodating cavity 346 , and the second rotating member body 3452 can rotate around the axis of the second support shaft 3451 .
  • the axis of the second supporting shaft 3451 does not coincide with the central axis of the second rotating member body 3452 .
  • the second rotating member body 3452 when the second rotating member body 3452 rotates around the axis of the second supporting shaft 3451, the second rotating member body 3452 can drive the second sub-tensioning member 342 to slide relative to the first sub-tensioning member 341, so as to realize Adjustment of the distance between the frame 1 and the fixing part 31.
  • the operator can more conveniently drive the second rotating member body 3452 to rotate, so that the second rotating member body 3452 can drive the second sub-tensioning member 342 slides relative to the first sub-tensioner 341 to realize the adjustment of the distance between the frame 1 and the fixing member 31 .
  • the second adjusting rod 3453 is a screw, and the second rotating member body 3452 includes a fourth threaded hole b7 matching the screw thread.
  • the second adjusting rod 3453 is configured to fix the third rotating body 345 when it passes through the fourth threaded hole b7 and abuts against the inner wall of the second accommodating chamber 346;
  • the second rotating member body 3452 is driven to rotate around the axis of the second supporting shaft 3451 .
  • the second adjusting rod 3453 is connected to the second rotating member body 3452 through the fourth threaded hole b7 on the second rotating member body 3452 .
  • the operator rotates the second adjustment lever 3453 so that the end of the second adjustment lever 3453 is in contact with the second accommodation of the first sub tension member 341.
  • the sidewalls of cavity 346 are out of contact.
  • the second adjusting rod 3453 is rotated so that the end of the second adjusting rod 3453 is in contact with the side wall of the second accommodating cavity 346 Then, the third rotating body 345 is fixed.
  • a portion of the first sub-shaft 3451a is located in the second limiting hole 3461 and is in clearance fit with the second limiting hole 3461 .
  • the second sub-shaft 3451b is located in the third through hole a7 in the second rotating member body 3452, and is in clearance fit with the third through hole a7.
  • At least part of the third sub-shaft 3451c has external threads, and at least part of the third sub-shaft 3451c is connected to the fifth threaded hole b8.
  • the diameter of the second sub-shaft 3451b is smaller than the diameter of the third sub-shaft 3451c, and the diameter of the second sub-shaft 3451b is larger than the diameter of the first sub-shaft 3451a.
  • the first sub-tensioning member 341 includes a third guide groove 3412, and the third guiding groove 3412 is disposed on the side wall of the first sub-tensioning member 341, and is connected with The second accommodating cavity 346 is in communication with each other.
  • the projection screen 100 further includes a fourth guide G4 passing through the third guide slot 3412 and fixedly connected with the part of the second sub-tensioning member 342 located in the second accommodating cavity 346 .
  • the tensioning member 34 is arranged between the support rod 32 and the rotating connecting member 33 in the tensioning mechanism 3 , and one end of the tensioning member 34 is fixed to the rotating connecting member 33 The other end of the tension member 34 is fixedly connected to the end of the support rod 32 .
  • the tension member 34 is disposed between the adapter 332a and the support rod 32, and the tension member 34 can drive the frame 1 to move away from the fixing member 31 by rotating the connecting member 33, so that the frame 1 drives the screen 2 The edge moves away from the fixing member 31 to adjust the tension of the screen 2 .
  • the tensioning member 34 when the tensioning member 34 is arranged between the support rod 32 and the rotating connecting member 33 in the tensioning mechanism 3, the first sub-tensioning member 341 and the second sub-tensioning member 342 One of them is rotatably connected with the rotatable link 33 , and the other is connected with the end of the support rod 32 .
  • the second tensioning member 342 is rotationally connected to the rotating connector 33
  • the first tensioning member 341 is fixedly connected to the end of the support rod 32
  • the tensioning member 34 is arranged between the rotating connector 33 and the supporting rod 32.
  • the tensioning member 34 can drive the frame 1 to move away from the fixing member 31 by rotating the connecting member 33, so that the frame 1 drives the edge of the screen 2 to move away from the fixing member 31, so as to stretch the screen 2.
  • the corners of the screen 2 are connected to the sides of the corner blocks 13 .
  • the curtain 2 includes a micromirror reflection structure, which can reflect the light emitted by the optical engine in a specific direction. In this way, it can be ensured that the light reflected by the micromirror reflective structure can reach the viewer's eyes to the greatest extent, so that the viewer can watch a clearer picture.
  • the screen 2 includes a circular Fresnel optical film, a black screen or a white plastic screen, and the like.
  • the optical film 21 includes a surface layer 211, a functional layer 212, a Fresnel lens layer 213, and a reflective layer 214 that are sequentially stacked, and are disposed in the functional layer 212.
  • the extension direction of the anti-bending strip 215 has an included angle with the curling axis of the optical film 21 , and the elastic recovery capability of the anti-bending strip 215 is stronger than that of the functional layer 212 .
  • the anti-bending strip 215 is also curled along with the optical film 21 .
  • the anti-bending strip 215 can apply an elastic recovery force to the functional layer 212, and then can apply an elastic recovery force to the optical film 21, and the optical film 21 can be bent under the action of the elastic recovery force. In order to reduce the risk of warping of the optical film 21 and improve the flatness of the optical film 21 after it is unrolled.
  • the anti-bending strips 215 can be arranged in different ways in the functional layer 212 correspondingly, so that the extending direction of the anti-bending strips 215 always has an included angle with the curling axis.
  • the anti-bending strips 215 will also be curled correspondingly.
  • the anti-bending strips 215 can provide elastic recovery force, and the optical film 21 is under the action of the elastic recovery force. Can maintain better flatness.
  • PMMA Polymethyl Methacrylate
  • the length of the anti-bending strip 215 is equal to the length of the side of the optical film 21 perpendicular to the curling axis.
  • the length of the anti-bending strip 215 is the same as the length of the long side of the optical film 21. (parallel to the second direction Y, and the first direction X is perpendicular to the second direction Y) have the same length. Since the curled optical film 21 is unrolled again, along the direction perpendicular to the curling axis, the position of the edge of the optical film 21 is relatively larger in curl.
  • the anti-bending strip 215 is made of a polymer blend, and the material of the polymer blend includes polyurethane and polyamide. Since the polyurethane has good elasticity, it can ensure that the anti-bending strip 215 can be bent, so the curling of the optical film 21 is not affected. At the same time, since the polyamide has a certain rigidity, after the optical film 21 is rolled and unrolled, its rigidity can be utilized to keep the rollable projection screen in a tense and tight state, maintaining better flatness. In the above-mentioned polymer blend, when the proportion of polyamide is higher than that of polyurethane, the rigidity of the formed polymer blend is relatively large, which can better keep the rollable projection screen tensioned and tight. Stretched state, maintain good flatness.
  • diffusing particles 216 are disposed in the surface layer 211 .
  • the light can be diffused by the diffusing particles 216 during the process of entering the surface layer 211 and exiting the surface layer 211 , so that the viewing angle of the screen 2 can be improved.
  • the material of the diffusion particles 216 can also be PMMA.
  • the dimensions of the orthographic projections of the plurality of light-transmitting protrusions 217 on the surface layer 211 are the same, and the shapes and sizes of the plurality of light-transmitting protrusions 217 on the surface layer 211 are the same.
  • the light-transmitting protrusions 217 shown in FIG. 40 extend along the width direction of the surface layer 211 and are uniformly arranged along the length direction of the surface layer 211 .
  • the light-transmitting protrusions 217 are continuously arranged along the length direction of the surface layer 211 , and adjacent light-transmitting protrusions 217 are connected in sequence.
  • the light-transmitting protrusion 217 in the process of light exiting from the surface layer 211, it will be refracted by the light-transmitting protrusion 217 and then enter the air. Since the material of the surface layer 211 is UV glue, its refractive index must be Greater than the refractive index of air, the light diffuses. Moreover, the light-transmitting protrusion 217 has a curved surface, so the light diffuses along the vertical direction of the surface layer 211 , thereby expanding the viewing angle of the optical film 21 in the vertical direction.
  • the haze value of the surface of the light-transmitting protrusion 217 can be adjusted so that light irradiates on the light-transmitting protrusion 217 Specular reflection is less likely to occur on the surface.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

Un appareil de projection (1000) qui comprend un écran de projection (100) et un moteur optique (200). L'écran de projection (100) comprend un cadre (1), un écran (2) et un mécanisme de tension (3). Le cadre (1) comprend deux premières bordures (11) disposées l'une en face de l'autre et deux deuxièmes bordures (12) disposées l'une en face de l'autre, et les parties d'extrémité des premières bordures (11) et les parties d'extrémité des deuxièmes bordures (12) sont reliées de façon mobile. Le bord de l'écran (2) est relié à un côté du cadre (1). Le mécanisme de tension (3) et le cadre (1) sont disposés sur le même côté de l'écran (2) ; le mécanisme de tension (3) est relié au moins aux deux premières bordures (11) disposées l'une en face de l'autre et aux deux deuxièmes bordures (12) disposées l'une en face de l'autre ; et le mécanisme de tension (3) est conçu pour entraîner les deux premières bordures (11) disposées l'une en face de l'autre et les deux deuxièmes bordures (12) disposées l'une en face de l'autre à s'éloigner les unes des autres. Le moteur optique (200) est conçu pour émettre un faisceau lumineux vers l'écran de projection (100).
PCT/CN2022/121452 2021-09-27 2022-09-26 Appareil de projection Ceased WO2023046183A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202280060248.XA CN117957493A (zh) 2021-09-27 2022-09-26 投影装置

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
CN202111136835.6A CN113741133B (zh) 2021-09-27 2021-09-27 一种可卷曲投影屏幕及投影装置
CN202111136835.6 2021-09-27
CN202111397978.2 2021-11-19
CN202111397978.2A CN116149126B (zh) 2021-11-19 2021-11-19 投影屏幕
CN202111612970.3 2021-12-27
CN202111612970.3A CN116360199A (zh) 2021-12-27 2021-12-27 投影屏幕
CN202111612966.7A CN116360198A (zh) 2021-12-27 2021-12-27 投影屏幕
CN202111612966.7 2021-12-27

Publications (1)

Publication Number Publication Date
WO2023046183A1 true WO2023046183A1 (fr) 2023-03-30

Family

ID=85720132

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/121452 Ceased WO2023046183A1 (fr) 2021-09-27 2022-09-26 Appareil de projection

Country Status (2)

Country Link
CN (1) CN117957493A (fr)
WO (1) WO2023046183A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2746424Y (zh) * 2004-11-30 2005-12-14 梁坚平 米字型伸缩式投影银幕支架
JP2008070748A (ja) * 2006-09-15 2008-03-27 Seiko Epson Corp 折り畳み式スクリーン
CN201429769Y (zh) * 2009-08-12 2010-03-24 东莞市澳星视听器材有限公司 简易支架幕结构
JP2012058679A (ja) * 2010-09-13 2012-03-22 Olympus Corp 光学映像投影用半球スクリーン
CN106373983A (zh) * 2016-09-26 2017-02-01 上海天马微电子有限公司 柔性显示面板以及柔性显示屏
CN211506160U (zh) * 2019-12-24 2020-09-15 广州达实信息科技有限公司 一种张紧投影设备
CN115236930A (zh) * 2022-08-02 2022-10-25 青岛海信激光显示股份有限公司 投影屏幕

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2746424Y (zh) * 2004-11-30 2005-12-14 梁坚平 米字型伸缩式投影银幕支架
JP2008070748A (ja) * 2006-09-15 2008-03-27 Seiko Epson Corp 折り畳み式スクリーン
CN201429769Y (zh) * 2009-08-12 2010-03-24 东莞市澳星视听器材有限公司 简易支架幕结构
JP2012058679A (ja) * 2010-09-13 2012-03-22 Olympus Corp 光学映像投影用半球スクリーン
CN106373983A (zh) * 2016-09-26 2017-02-01 上海天马微电子有限公司 柔性显示面板以及柔性显示屏
CN211506160U (zh) * 2019-12-24 2020-09-15 广州达实信息科技有限公司 一种张紧投影设备
CN115236930A (zh) * 2022-08-02 2022-10-25 青岛海信激光显示股份有限公司 投影屏幕

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