Frame projection screen

Abstract

The utility model discloses a frame projection screen, which belongs to the field of projection display and comprises a supporting structure, a diaphragm, a first frame and a second frame, the first frames are distributed on the edges of two opposite long sides of the diaphragm, the second frames are distributed on the edges of two opposite short sides of the diaphragm, the first frames and the second frames are spliced to form a rectangular frame, and the first frames and the second frames are connected through connecting pieces. The first frame and the second frame are both provided with cavities so that the connecting pieces can be contained conveniently. On the cross section parallel to the second frame, the supporting structure is formed by continuously connecting a plurality of arc-shaped structures or arc-like structures, and the arc-shaped tops of the arc-shaped structures form bearing surfaces at intervals to bear a non-imaging display surface of the diaphragm. According to the technical scheme, on the basis of ensuring the imaging display effect of the projection screen, the structure is simplified, and the cost is reduced.

Description

Technical Field

[0001] The present application relates to the field of projection display, and in particular to a frame projection screen. Background Art

[0002] In the prior art, a frame projection screen consists of an inner frame, an outer frame, connecting corners, a screen sheet fastening mechanism, screen sheets, and reinforcement structures. To assemble the projection screen, the inner frame must first be connected to form a rectangle using connecting corners. The outer frame is then nested within the rectangular inner frame. The entire projection screen is complex in design and overall structure. Installation requires meticulous attention to detail, including the assembly and connection of the inner and outer frames. This makes installation complex and expensive.

[0003] There is an urgent need to simplify the structure of the projection screen and reduce costs while ensuring the imaging display effect of the projection screen. Utility Model Content

[0004] The present application provides a frame projection screen, which simplifies the structure and reduces the cost while ensuring the imaging display effect of the projection screen.

[0005] The technical solutions provided in this application are as follows:

[0006] A frame projection screen includes a support structure, a diaphragm, a first frame, and a second frame; the first frame is distributed on two opposite long side edges of the diaphragm, and the second frame is distributed on two opposite short side edges of the diaphragm; the first frame and the second frame are assembled to form a rectangular frame; the first frame and the second frame are connected by a connector; the first frame and the second frame are both provided with a cavity to facilitate accommodating the connector; in a cross section parallel to the second frame, the support structure is formed by a plurality of arc structures or arc-like structures continuously connected; the top intervals of the arc structures or the arc-like structures form a bearing surface, which bears the non-imaging display surface of the diaphragm.

[0007] By setting the first frame and the second frame, the flatness of the frame projection screen is enhanced. On the basis of ensuring the imaging display effect of the frame projection screen, the design of the frame projection screen is simplified, the overall structure is simple, the installation is more convenient, and the cost is correspondingly reduced.

[0008] In addition, the first frame and the second frame are arranged at the edge of the film to decorate the frame projection screen. The colors of the first frame and the second frame can be changed as needed to make the frame projection screen meet more personalized needs.

[0009] In the present application, the frame projection screen further includes a card strip. The first frame is a whole. The first frame is provided with a groove for accommodating the card strip. The card strip connects two opposite long side edges of the diaphragm.

[0010] The clip is arranged to connect the two opposite long edges of the diaphragm, and the clip is arranged in the groove of the first frame. When the edge of the diaphragm is pressed, the first frame cooperates with the clip to limit and fix the diaphragm, so that the edge of the diaphragm will not run out of the first frame and be exposed to the outside.

[0011] In the present application, the card strip is a rectangular parallelepiped structure.

[0012] In order to facilitate the processing of the clip strip, the clip strip is configured as a rectangular parallelepiped structure.

[0013] In the present application, the length of the card strip is smaller than the length of the first frame.

[0014] The length of the card strip is set to be smaller than the length of the first frame, so that the card strip is completely embedded in the first frame, ensuring the aesthetics of the frame projection screen.

[0015] In the present application, the first frame and the second frame are engaged with each other at their connection points.

[0016] The connection between the first frame and the second frame is engaged with each other, which not only enhances the stability of the frame projection screen but also ensures its aesthetics.

[0017] In the present application, the connector is an L-shaped connector.

[0018] The use of the L-shaped connecting member strengthens the strength of the edges of the first frame and the second frame, thereby enhancing the stability of the entire frame projection screen.

[0019] In the present application, both ends of the connecting member are arc-shaped.

[0020] The edges at both ends of the connecting piece are set to be arc-shaped, so as to avoid scratches on the frame projection screen caused by sharp corners during the installation process, thereby better protecting the frame projection screen.

[0021] In the present application, the inner corner of the connecting member is arc-shaped.

[0022] The corners of the connecting piece are set to be arc-shaped, and the arc chamfers are set to avoid air gaps, ensuring that the installation and connection are in place.

[0023] In the present application, the frame projection screen further comprises a base film, which is arranged on a side of the support structure away from the film.

[0024] A base film is provided on the support structure at a side away from the diaphragm, so that the base film can not only protect the support structure but also facilitate the processing and shaping of the support structure.

[0025] In the present application, the frame projection screen further comprises a central vertical rod, which is arranged on a side of the support structure away from the diaphragm. The central vertical rod is parallel to the second frame, and the two opposite first frames are connected via the central vertical rod.

[0026] The provision of the middle vertical rod strengthens the strength of the frame formed by the first frame and the second frame, enhances the stability of the frame, and thus makes the entire frame projection screen more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A partial side view of an embodiment of the present application;

[0028] Figure 2 This is a rear view of an embodiment of the present application;

[0029] Figure 3 for Figure 2 A magnified view of;

[0030] Figure 4 This is a structural diagram of a connector according to an embodiment of the present application;

[0031] Figure 5 Thumbnails of the first frame and the second frame of the embodiment of the present application;

[0032] Figure 6 This is another partial side view of an embodiment of the present application.

[0033] Among them, the meanings of the reference numerals in the figures are:

[0034] 100-first frame; 200-connecting piece; 300-clip strip; 400-diaphragm; 500-support structure; 600-second frame; 700-middle vertical rod; 800-base membrane. DETAILED DESCRIPTION

[0035] The terms used in the implementation section of this application are only used to explain the specific embodiments of this application and are not intended to limit this application.

[0036] Figure 1 It is a partial side view of an embodiment of the present application; Figure 2 is a rear view of an embodiment of the present application;

[0037] Figure 3 yes Figure 2 A magnified view of; Figure 4 This is a structural diagram of a connector according to an embodiment of the present application; Figure 5is a thumbnail of the first frame and the second frame of the embodiment of the present application; Figure 6 This is another partial side view of an embodiment of the present application.

[0038] See also Figures 1 to 6 , a frame projection screen includes a supporting structure 500, a diaphragm 400, a first frame 100 and a second frame 600; the first frame 100 is distributed on the two opposite long side edges of the diaphragm 400, and the second frame 600 is distributed on the two opposite short side edges of the diaphragm 400. The first frame 100 and the second frame 600 are spliced ​​together to form a rectangular frame. The first frame 100 and the second frame 600 are connected by a connecting member 200. The first frame 100 and the second frame 600 are both provided with a cavity to facilitate accommodating the connecting member 200; in a section parallel to the second frame 600, the supporting structure 500 is formed by continuously connecting a plurality of arc structures, and the arc tops of the arc structures are spaced to form a bearing surface, which bears the non-imaging display surface of the diaphragm 400.

[0039] In this embodiment, the support structure 500 supports and flattens the diaphragm 400, ensuring the flatness of the frame projection screen. The diaphragm 400 has an imaging display function, with the side closest to the support structure 500 serving as a non-imaging display surface, and the side further from the support structure 500 serving as an imaging display surface. The first frame 100 and the second frame 600 combine to form a rectangular frame, further enhancing the flatness of the frame projection screen and ensuring its imaging display quality. This simplifies the design of the frame projection screen, making its overall structure simpler, installation more convenient, and costs correspondingly reduced.

[0040] In this embodiment, in a cross section parallel to the second frame 600, the support structure 500 is formed by a plurality of continuously connected arc-shaped structures. The arc-shaped tops of the arc-shaped structures are spaced apart to form a support surface for the non-imaging display surface of the film 400. Overall, the support structure 500 can be considered to be a single structure formed by the plurality of arc-shaped structures extending along the length of the first frame 100.

[0041] In this embodiment, the first frame 100 is located along the two opposing long edges of the film 400, enclosing the two long edges of the film 400; the second frame 600 is located along the two opposing short edges of the film 400, enclosing the two short edges of the film 400. The first frame 100 and the second frame 600 are combined to form a rectangular frame. This arrangement serves as a decorative element for the entire frame projection screen. Furthermore, the colors of the first frame 100 and the second frame 600 can be changed as needed, allowing the frame projection screen to meet more personalized needs.

[0042] In this embodiment, the support structure 500 is formed by a plurality of continuously connected arc-shaped structures. The designs of the plurality of arc-shaped structures can be identical, that is, the shapes, dimensions, and external appearances of the arc-shaped structures are consistent, which facilitates the processing and molding of the support structure 500 and reduces production costs. The arc-shaped tops of the arc-shaped structures are spaced apart to form a bearing surface, which supports the non-imaging display surface of the diaphragm 400. That is, the bearing surface is formed by the arc-shaped tops of the arc-shaped structures as a support portion. When the support structure 500 is used to support the diaphragm 400, the arc-shaped tops of the arc-shaped structures ensure the stability of the force applied in the extension direction of the arc-shaped tops, thereby preventing deformation of the diaphragm 400, such as curling or bending, in this direction when supporting the diaphragm 400.

[0043] In this embodiment, when several arc-shaped structures are completely consistent, of course, the arc-shaped tops of the supporting structures are also completely consistent. This is conducive to the uniformity of the supporting force of the supporting structure 500 and maintains the flatness of the diaphragm when it is unfolded, avoiding local bending, wavy lines, etc. on the frame projection screen.

[0044] In this embodiment, the support structure 500 is formed by a plurality of continuously connected arc-shaped structures. This indicates that the support structure 500 is a whole, rather than a separate entity. This ensures the continuity of the support structure 500 and prevents the support structure 500 from separating from the diaphragm 400 due to shaking or twisting of the local arc-shaped structures. This maintains a long-term and stable connection between the diaphragm 400 and the support structure 500, and the smoothness of the connection between the support structure 500 and the diaphragm 400.

[0045] In this embodiment, support structure 500 can be formed by bending a plastic or inorganic fiber-reinforced sheet material into a continuous arrangement through positive and negative arc bending. Specifically, support structure 500 is fabricated from a single piece of sheet material. This simplifies the manufacturing process while ensuring flatness and stability, resulting in a high degree of lightweighting and weight reduction. Forming the structure through sheet bending requires less structural strength. The positive and negative arc bending process strengthens the originally weak sheet material into a certain degree of bending resistance. This meets the requirements of support structure 500, resulting in a simple structure, ease of fabrication, and relatively low cost, thereby reducing the overall cost of the frame projection screen.

[0046] In this embodiment, the support structure 500 may also be formed by connecting and linking a plurality of arc-shaped structures. Specific configuration methods may refer to the method for connecting and linking a plurality of arc-shaped structures.

[0047] In this embodiment, the diaphragm 400 can be a common screen such as a white plastic screen, a metal screen, or a bead screen, or an optical screen such as a Fresnel optical screen, a line grating screen, or a photonic screen. Whether it is a common screen or an optical screen, it can be used to image image light. In other words, the diaphragm 400 can also be a single functional structural layer, or multiple functional structural layers. Of course, it must include an imaging display surface, which is essential for the imaging of the frame projection screen. The curved top of the curved structure of the support structure 500 forms a bearing surface, which supports the imaging display surface. In the direction of the length extension of the support structure 500, the imaging display surface also receives a corresponding flattening force, which can prevent deformation problems such as curling and bending of the imaging display surface, ensure the flatness of the imaging display surface, and thus ensure the imaging effect.

[0048] In this embodiment, the size of the support structure 500 can be set to cover an area greater than or equal to 80% of the area of ​​the display area on the diaphragm 400. The support structure 500 is usually centered on the screen 400. When the size of the support structure 500 covers 80% or more of the display area, the curling deformation of the side of the diaphragm 400 can be effectively eliminated.

[0049] In this embodiment, the size of the support structure 500 can be preferably set to cover greater than or equal to 100% of the display area on the membrane 400. This configuration not only has a better effect of resisting screen deformation, but also facilitates the connection and alignment between the structure and the screen, facilitating manufacturing.

[0050] In this embodiment, the first frame 100 is formed as a whole and has a groove, so that it can be used to accommodate the clamping strip 300. In other words, the frame projection screen further includes the clamping strip 300, which connects two opposite long edges of the membrane 400.

[0051] Specifically, after the clip 300 connects to the two opposite long edges of the film 400, it is placed in the groove of the first frame 100. When the edge of the film 400 is pressed with external force, the first frame 100 cooperates with the clip 300 to fix the film 400 in place, preventing the edge of the film 400 from moving out of the first frame 100, ensuring the stability and aesthetics of the frame projection screen.

[0052] Regarding the shape and structure design of the clip strip 300: the clip strip 300 can be configured as a rectangular parallelepiped structure, which facilitates its processing and manufacturing. To ensure that the clip strip 300 is completely embedded in the first frame 100 and maintain the aesthetics of the frame projection screen, the clip strip 300 can be configured to be shorter than the first frame 100 to prevent the clip strip 300 from being exposed outside the first frame 100.

[0053] The clip strip 300 can also be configured as a hollow long strip structure, which can reduce the weight of the clip strip 300 itself and further reduce the weight of the entire frame projection screen.

[0054] In this embodiment, the first frame 100 and the second frame 600 are engaged with each other at their joints. In this way, the edges of the first outer frame 100 and the second frame 600 fit together, which not only enhances the stability of the frame projection screen but also ensures its aesthetics.

[0055] In this embodiment, the connecting member 200 of the first frame 100 and the second frame 600 can be configured as an L-shaped connecting member. In this way, the edge strength of the first frame 100 and the second frame 600 can be strengthened, thereby enhancing the stability of the entire frame projection screen.

[0056] In this embodiment, the edges of the connector 200 are directly arc-shaped. This prevents sharp corners from scratching the frame projection screen during installation. This not only protects the safety of the installer, but also prevents sharp corners from scratching the first frame 100, the second frame 600, and the like, thereby enhancing the safety of the frame projection screen during installation.

[0057] In this embodiment, the inner corner of the connecting member 200 is set to be an arc shape. By setting the arc chamfer at the inner corner of the connecting member 200, air is avoided and the installation connection is ensured to be in place.

[0058] In this embodiment, the outer corners of the connector 200 may be configured to be arc-shaped or inclined, thereby avoiding the appearance of sharp corners and increasing the safety factor of the entire installation process.

[0059] In this embodiment, the corners of the L-shaped connector may also be set to right angles, which facilitates the processing of the connector 200 .

[0060] In this embodiment, the frame projection screen further includes a center vertical rod 700 , which is disposed on a side of the support structure 500 away from the diaphragm 400 and parallel to the second frame 600 . The two opposite first frames 100 are connected via the center vertical rod 700 .

[0061] The provision of the middle vertical rod 700 further strengthens the strength of the frame formed by the first frame 100 and the second frame 600, thereby enhancing the stability of the frame, making the entire frame projection screen more stable.

[0062] In addition, the frame projection screen may further include a base film 800, which is disposed on the side of the support structure 500 away from the diaphragm 400. Thus, the base film 800 not only protects the support structure 500 but also facilitates the processing and forming of the support structure 500. The base film may be a plastic film, and the base film may be connected to the support structure 500 by bonding.

[0063] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A frame projection screen, characterized in that: It includes a supporting structure, a diaphragm, a first frame and a second frame; the first frame is distributed on the two opposite long side edges of the diaphragm, and the second frame is distributed on the two opposite short side edges of the diaphragm. The first frame and the second frame are spliced ​​together to form a rectangular frame. The first frame and the second frame are connected by a connecting piece. The first frame and the second frame are both provided with a cavity to facilitate accommodating the connecting piece; in a cross section parallel to the second frame, the supporting structure is formed by continuously connecting a plurality of arc structures or arc-like structures, and the top intervals of the arc structures or the arc-like structures form a bearing surface to bear the non-imaging display surface of the diaphragm.

2. The frame projection screen according to claim 1, characterized in that: It also includes a clamping strip. The first frame is a whole. The first frame is provided with a groove for accommodating the clamping strip. The clamping strip connects two opposite long side edges of the diaphragm.

3. The frame projection screen according to claim 2, characterized in that: The clip strip is a rectangular parallelepiped structure.

4. The frame projection screen according to claim 2, characterized in that: The length of the clip is smaller than the length of the first frame.

5. The frame projection screen according to claim 1, characterized in that: The first frame and the second frame are engaged with each other at a connection point.

6. The frame projection screen according to claim 1, characterized in that The connecting piece is an L-shaped connecting piece.

7. The frame projection screen according to claim 6, characterized in that: The edges at both ends of the connecting piece are arc-shaped.

8. The frame projection screen according to claim 6 or 7, characterized in that: The inner corner of the connecting piece is arc-shaped.

9. The frame projection screen according to claim 1, characterized in that: It also includes a base film, which is arranged on a side of the support structure away from the diaphragm.

10. The frame projection screen according to claim 1, characterized in that It also includes a central vertical rod, which is arranged on a side of the support structure away from the diaphragm. The central vertical rod is parallel to the second frame, and the two opposite first frames are connected by the central vertical rod.

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