Projection screen and projection display device

Abstract

The application discloses a projection screen and a projection display device. The projection screen comprises a display assembly and a frame structure. The membrane of the display assembly is supported by a plurality of edge support strips and a plurality of intermediate support strips. The first edge of the membrane and the edge support strips located at the first edge are clamped to the first frame body of the frame structure, and the second edge and the edge support strips located at the second edge are clamped to the second frame body of the frame structure. In the projection screen and the projection display device disclosed by the application, the support pieces are composed of the plurality of edge support strips and the intermediate support strips, the support strips are arranged at intervals, the overall support piece is in a hollow shape, the membrane can be effectively supported, and the overall weight of the projection screen is reduced. In addition, when the membrane is installed on the frame structure, the edge support strips are clamped to the first frame body and the second frame body, the membrane on the frame structure is quickly installed, the operation is convenient, the user can easily install, and the use experience of the user is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a projection screen and a projection display device. Background Technology

[0002] In related technologies, display devices such as televisions and computer screens are typically used to display information, provide entertainment, and facilitate interaction, thus meeting users' needs for information access and entertainment in their daily lives. Taking television as an example, televisions can be further categorized into projection televisions, LCD televisions, and cathode ray tube televisions, among others.

[0003] In a projection TV, the main unit (usually a laser projector) and the screen (such as an ambient light rejecting screen) are combined. Currently, most screens on the market use a frame-type design, which mainly consists of a frame, a diaphragm, and various springs and screws used to tighten the diaphragm. Because frame-type screens have many different types and quantities of materials, they are heavy and difficult to handle or transport. Furthermore, the large number and variety of materials in frame-type screens leads to complex assembly methods, affecting the user experience. Utility Model Content

[0004] This application discloses a projection screen and projection display device, which can effectively reduce the weight of the projection screen while improving the ease of installation.

[0005] To achieve the above objectives, in a first aspect, this application discloses a projection screen, comprising:

[0006] The display component includes:

[0007] A diaphragm configured to display an image projected by a projector, the diaphragm comprising:

[0008] Along the width direction of the projection screen, the two first edges;

[0009] The two second edges along the length of the projection screen;

[0010] A frame structure, wherein the frame structure is disposed at the outer edge of the display component, the frame structure comprising:

[0011] Two first frames are respectively disposed on the two first edges;

[0012] Two second frames are respectively disposed on the two second edges;

[0013] The display component includes:

[0014] A support member is disposed on the non-display side of the diaphragm to support the diaphragm;

[0015] The support member includes:

[0016] Multiple edge support strips, wherein two edge support strips are respectively connected to two first edges and snapped into the first frame, and two edge support strips are respectively connected to two second edges and snapped into the second frame;

[0017] Multiple intermediate support bars are spaced apart along the width direction of the projection screen. Along the width direction of the projection screen, the multiple intermediate support bars are located between two edge support bars connected to the first edge. The intermediate support bars extend along the length direction of the projection screen and are connected to the edge support bar located at the second edge.

[0018] The projection screen disclosed in this application replaces the display components that tension the diaphragm with a support member. That is, the diaphragm is directly tensioned by connecting the support member to the frame structure, thereby avoiding the use of screws, springs, or other materials connected to the frame structure for tensioning the diaphragm, thus reducing the use of springs, screws, and other such materials. Furthermore, this application designs the support member's structure to include multiple edge support strips and intermediate support strips. The intermediate support strips are spaced apart and connected to the edge support strips. Compared to a plate-shaped support member design, the strip-shaped support member, with its multiple perforations, effectively supports the diaphragm while reducing the overall weight of the projection screen. In addition, the support member of this application engages with the first and second frames of the frame structure via the edge support strips, enabling rapid installation of the diaphragm onto the frame structure while simultaneously tensioning it. This convenient operation improves the user experience.

[0019] As an optional implementation, the first frame has:

[0020] A first groove with an opening along the width direction of the projection screen, the first groove extending along the length direction of the projection screen, the first edge and the edge support strip located at the first edge are located in the first groove;

[0021] The second frame has:

[0022] A second groove with an opening along the length of the projection screen, the second groove extending along the width of the projection screen, the second edge and the edge support strip located at the second edge are located within the second groove.

[0023] When installing the first edge, second edge, and edge support strip of the diaphragm on the first and second frames, a first groove is provided on the first frame to insert the first edge, which is connected to the edge support strip, into the first groove. Similarly, a second groove is provided on the second frame to insert the second edge, which is connected to the edge support strip, into the second groove. This design facilitates quick and easy installation of the display component and frame structure, reducing installation steps for the user. Furthermore, the simple structure of the first and second frames for installing the diaphragm simplifies the overall frame structure and facilitates a thinner, lighter design.

[0024] As an optional implementation, the first frame is provided with:

[0025] A stop portion is provided near the opening of the first groove to partially block the opening of the first groove. The stop portion is configured to prevent the edge support strip located at the first edge from dislodging from the first groove.

[0026] When the projection screen is mounted on a wall, the edge support strip of the first frame and the first edge of the diaphragm with the edge support strip are prone to falling out of the first groove due to gravity in the width direction of the projection screen. To address this, this application provides a stop near the opening of the first groove, causing the edge support strip at the first edge to abut against the stop, thereby preventing the first edge of the diaphragm and the edge support strip at the first edge from detaching from the first groove and facilitating stable installation of the diaphragm on the frame structure.

[0027] As an optional implementation, the first frame further comprises:

[0028] The third groove is located behind the first groove along the thickness direction of the projection screen. The third groove is open along the width direction of the projection screen and extends through the length direction of the projection screen.

[0029] The second frame also has:

[0030] The fourth groove is located behind the second groove along the thickness direction of the projection screen. The fourth groove is open along the length direction of the projection screen and extends through the width direction of the projection screen. The end of the first frame is connected to the end of the second frame so that the fourth groove is connected to the third groove.

[0031] The framework structure also includes:

[0032] An angle connector is provided at the connection between the third groove and the fourth groove, and the angle connector is fixedly connected to the end of the first frame and the end of the second frame, respectively.

[0033] While the first frame and the second frame are respectively provided with a first groove and a second groove, a third groove is also provided behind the first groove, and a fourth groove is provided behind the second groove. After the first frame and the second frame are connected, the third groove and the fourth groove are connected. An angle connector can be provided at the connection point between the third groove and the fourth groove to securely install the first frame and the second frame, thereby improving the connection strength between the first frame and the second frame. Furthermore, since the angle connector is hidden at the connection point between the third groove and the fourth groove, it avoids being exposed on the outside of the projection screen, which helps improve the appearance of the projection screen.

[0034] As an optional implementation, the first frame includes:

[0035] A first main frame portion, wherein the third groove is formed in the first main frame portion;

[0036] The first sub-frame portion is connected to one side of the first main frame portion along the thickness direction of the projection screen and is spaced apart from the first main frame portion to form the first groove.

[0037] The second frame includes:

[0038] The second main frame portion has the fourth groove formed thereon;

[0039] The second sub-frame portion is connected to one side of the second main frame portion along the thickness direction of the projection screen and is spaced apart from the second main frame portion to form the second groove.

[0040] In this application, the first and second frames are constructed by forming a third and a fourth groove, respectively, through a first main frame portion and a second main frame portion. Then, a sub-frame portion is provided on one side of the first and second main frame portions. The first and second grooves are formed by the interval between the sub-frame portions and the main frame portions. This application, in constructing the first and second frames, only requires two frame portions to form two grooves for installation. The structure is simple and can stably install the diaphragm, reducing the material required for the frame structure and thus helping to reduce the overall weight of the projection screen.

[0041] As an optional implementation, the width of the first sub-frame is w1 along the width direction of the projection screen, satisfying: 8mm < w1 < 12mm; and / or,

[0042] Along the length of the projection screen, the width of the second sub-frame is w2, which satisfies: 8mm < w2 < 12mm.

[0043] In this application, when setting the first and second sub-frame portions, viewed from the display side of the film, the first and second sub-frame portions form the front border of the film, which may partially obscure the display effect of the film. This application controls the thicknesses w1 and w2 of the first and second sub-frame portions to avoid w1 and w2 exceeding 12mm. If w1 and w2 are greater than 12mm, the first and second sub-frame portions will excessively obscure the edges of the film, affecting the display size and potentially impacting the projection effect of the projector on the film. On the other hand, it avoids w1 and w2 being less than 8mm. If w1 and w2 are less than 8mm, the space in the first and second grooves formed by the first and second sub-frame portions is insufficient, which may negatively affect the stability of the first and second edges of the film when installed in the first and second grooves. In other words, this application controls the widths w1 and w2 of the first sub-frame and the second sub-frame between 8mm and 12mm, which not only enables the narrow bezel design of the projection screen and improves the display effect of the projection screen, but also allows the diaphragm to be stably installed between the sub-frame and the main frame.

[0044] As an optional implementation, the support member is made of carbon fiber; and / or,

[0045] Along the thickness direction of the projection screen, the thickness of both the first frame and the second frame is h, satisfying: 10mm < h < 15mm.

[0046] On the one hand, the support component used in this application is made of carbon fiber. While the support component employs support strips to achieve a hollow design, carbon fiber is also used as the material to further reduce the weight of the support component. In this way, the overall weight of the projection screen can be reduced, achieving a lightweight design for the projection screen.

[0047] On the other hand, this application controls the thickness h of both the first and second frames to be between 10mm and 15mm. When setting h, if h < 10mm, although the first and second frames are relatively thin, an excessively thin h may result in low strength of the first and second frames, potentially causing damage to the frame structure. If h > 15mm, the first and second frames may be too thick, which not only hinders the thin design of the projection screen but also makes the first and second frames too heavy, hindering the reduction of the overall weight of the projection screen. Therefore, by controlling the thickness h of the first and second frames to be between 10mm and 15mm, this application achieves a thinner projection screen while maintaining a certain structural strength of the frame structure, preventing damage.

[0048] As an optional implementation, the distance between the edge support strip located at the first edge and the adjacent intermediate support strip is d1, and the distance between two adjacent intermediate support strips is d2, satisfying: d1 < d2.

[0049] When edge support strips and intermediate support strips are arranged along the width of the projection screen, the edge support strips located at the first edge and their adjacent intermediate support strips are spaced apart, and the intermediate support strips are also spaced apart from each other. The spacing between the edge support strips located at the first edge and their adjacent intermediate support strips is smaller than the spacing between other adjacent intermediate support strips. In other words, the support strips near the first edge of the film are arranged relatively densely. This application takes into account the tendency for warping to occur at the edges of the film. Therefore, relatively dense support strips are arranged at the first edge of the film to effectively support the first edge of the film, which is beneficial to improving the display effect of the projection screen.

[0050] As an optional implementation, the framework structure further includes:

[0051] Frame beams, the frame beams comprising:

[0052] The main beam extends along the length of the projection screen to connect to the middle of the two first frames respectively;

[0053] The two sub-beams are located on both sides of the main beam along the length of the projection screen and protrude from the main beam. The two sub-beams extend along the length of the projection screen to abut against the inner edge of the first frame.

[0054] Considering that the overall structure of the projection screen frame disclosed in this application is relatively thin and light, a frame beam is provided in the middle of the frame structure, for example, in the middle of the first frame. The middle of the two first frames is connected by the frame beam, and the middle of the frame structure is supported by the main beam of the frame beam, thereby improving the overall strength of the frame structure.

[0055] In addition, the sub-beams on both sides of the main beam can also provide additional support for the first frame. The sub-beams abut against the inner edges of the two first frames in the width direction of the projection screen, so that when the first frame is subjected to force in the width direction of the projection screen, the sub-beams can bear the force, thereby reducing the external force received by the first frame.

[0056] Secondly, this application also discloses a projection display device, comprising:

[0057] Projector host;

[0058] As described in the first aspect, the projection screen is configured to display an image projected by the projection host.

[0059] In the projection display device disclosed in this application, the projection screen can directly tension the diaphragm via a support member, avoiding the use of screws, springs, or other components connected to the frame structure for diaphragm tensioning, thus reducing the use of materials such as springs and screws. Secondly, the support member is composed of multiple edge support strips and a central support strip, spaced apart to create a hollow overall structure. This effectively supports the diaphragm while reducing the overall weight of the projection screen. Furthermore, when installing the diaphragm onto the frame structure, the edge support strips engage with the first and second frames, enabling rapid installation of the diaphragm onto the frame structure. This convenient operation facilitates user installation and improves the user experience.

[0060] While achieving a lightweight and simplified design for the projection screen, it also ensures that the film has good support and tension, which is beneficial to improving the visual effect of the image projected onto the film by the projector.

[0061] Compared with the prior art, this application has at least the following beneficial effects:

[0062] The projection screen disclosed in this application replaces the display components that tension the diaphragm with a support member. That is, the diaphragm is directly tensioned by connecting the support member to the frame structure, thereby avoiding the use of screws, springs, or other materials connected to the frame structure for tensioning the diaphragm, thus reducing the use of springs, screws, and other such materials. Furthermore, this application designs the support member's structure to include multiple edge support strips and intermediate support strips. The intermediate support strips are spaced apart and connected to the edge support strips. Compared to a plate-shaped support member design, the strip-shaped support member, with its multiple perforations, effectively supports the diaphragm while reducing the overall weight of the projection screen. In addition, the support member of this application engages with the first and second frames of the frame structure via the edge support strips, enabling rapid installation of the diaphragm onto the frame structure while simultaneously tensioning it. This convenient operation improves the user experience. Attached Figure Description

[0063] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0064] Figure 1 This is a schematic diagram of the structure of the projection screen disclosed in the embodiments of this application;

[0065] Figure 2This is a front view of the projection screen disclosed in the embodiments of this application;

[0066] Figure 3 for Figure 2 Sectional view at point AA;

[0067] Figure 4 for Figure 3 A magnified view of a section at point C;

[0068] Figure 5 for Figure 2 Sectional view at point BB;

[0069] Figure 6 for Figure 5 A magnified view of a section at point D;

[0070] Figure 7 This is an exploded view of the projection screen disclosed in the embodiments of this application;

[0071] Figure 8 for Figure 7 A magnified view of a section at point E in the middle;

[0072] Figure 9 This is a schematic diagram of the structure of the support member disclosed in the embodiments of this application;

[0073] Figure 10 This is a rear axonometric view of the projection screen disclosed in the embodiments of this application;

[0074] Figure 11 for Figure 10 A magnified view of a section at point F in the middle;

[0075] Figure 12 This is a schematic diagram of the structure of the projection display device disclosed in the embodiments of this application.

[0076] Explanation of reference numerals in the attached figures:

[0077] 10. Projection screen; 1. Display component; 11. Diaphragm; 111. First edge; 112. Second edge; 12. Support member; 121. Edge support strip; 122. Middle support strip; 2. Frame structure; 21. First frame; 21a. First groove; 21b. Third groove; 211. Stop; 212. First main frame; 213. First sub-frame; 22. Second frame; 221. Second main frame; 222. Second sub-frame; 22a. Second groove; 22b. Fourth groove; 23. Corner connector; 24. Frame beam; 241. Main beam; 242. Sub-beam;

[0078] 100. Projection display equipment; 20. Projection host. Detailed Implementation

[0079] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0080] In this application, the terms "upper," "lower," "left," "right," "front," "rear," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0081] Furthermore, in addition to indicating location or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0082] Furthermore, the terms "installation," "setup," "equipped with," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0083] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0084] In related technologies, display devices such as televisions and computer screens are typically used to display information, provide entertainment, and facilitate interaction, thus meeting users' needs for information access and entertainment in their daily lives. Taking television as an example, televisions can be further categorized into projection televisions, LCD televisions, and cathode ray tube televisions, among others.

[0085] In projection TVs, a typical setup includes a main unit (usually a laser projector) and a screen (such as an anti-glare screen). Currently, most screens on the market use a frame-type design, which mainly consists of a frame, a diaphragm, and multiple springs and screws used to tension the diaphragm. For example, during installation, the diaphragm is first held in place by springs, which are then mounted on the frame to tighten it. Alternatively, screws can be used to secure the diaphragm to the frame, utilizing its own elasticity for tension. Due to the relatively long circumference of the diaphragm, a large number of screws and springs are typically required around its perimeter for tension. This results in a large overall quantity of materials for frame-type screens, leading to their weight and making them difficult to handle or transport. Furthermore, the large number and variety of materials in frame-type screens complicates assembly, impacting the user experience.

[0086] Based on this, this application discloses a projection screen and a projection display device, wherein the projection screen is tensioned on the back of the diaphragm by a support strip, replacing the use of screws and springs, which improves the ease of installation and reduces the number and types of materials, thus reducing the overall weight of the frame structure. The frame structure corresponds to the design of the diaphragm and the support strip, simplifying the design of the frame structure and making the installation between the diaphragm and the frame structure easier.

[0087] The technical solution of this application will be further described below with reference to the embodiments and accompanying drawings.

[0088] Firstly, please refer to the following: Figures 1 to 2 This application discloses a projection screen 10, which includes a display component 1.

[0089] Understandably, for better display results, the projection screen 10 is typically mounted on a wall or suspended vertically relative to the ground. That is, when the projection screen 10 is mounted, its width is its height. For example, when the projection screen 10 is mounted on a wall, its length can be along the horizontal direction of the wall, and its width can be along the vertical direction of the wall.

[0090] For example, as in Figure 1 In the example, X indicates the length direction of the projection screen 10, Y indicates the width direction of the projection screen 10, and Z indicates the thickness direction of the projection screen 10.

[0091] It is understandable that, viewed in the thickness direction of the projection screen 10, the display side can be the front side of the projection screen 10, and the non-display side can be the rear side of the projection screen 10.

[0092] Please see Figure 2 In some embodiments, the display component 1 includes a diaphragm 11 for displaying images projected by the projector host.

[0093] Optionally, the film 11 can be structurally divided into Fresnel structure and black grid structure. The black grid structure works by using a special process to manufacture a screen with a sawtooth cross-section. The Fresnel structure utilizes the converging principle of concave mirrors, breaking down the concave mirror into concentric circular structures and placing them on a plane. In other words, both rely on special optical structures to achieve directional reflection and anti-glare, thereby improving the display effect of the film 11.

[0094] In some embodiments, the diaphragm 11 includes two first edges 111 along the width direction of the projection screen 10, and two second edges 112 along the length direction of the projection screen 10.

[0095] It is understandable that the projection screen 10 is usually square in shape, and the diaphragm 11 is also set to be square in shape corresponding to the projection screen 10. The square diaphragm 11 has four edges in the width and length directions of the projection screen 10.

[0096] Please see Figure 2 In some embodiments, the projection screen 10 further includes a frame structure 2, which is disposed on the outer edge of the display component 1 to enable the installation of the display component 1.

[0097] In some embodiments, the frame structure 2 includes two first frame bodies 21, which are respectively disposed on two first edges 111. The frame structure 2 also includes two second frame bodies 22, which are respectively disposed on two second edges 112. That is, the frame structure 2 is typically a square frame adapted to the shape of the diaphragm 11, thereby enabling the diaphragm 11 to be stably installed on the frame structure 2 by respectively setting corresponding frame bodies to the corresponding edges of the diaphragm 11.

[0098] Optionally, the materials of the first frame 21 and the second frame 22 may be aluminum alloy, glass fiber, carbon fiber, etc., and this application does not make specific limitations.

[0099] In some embodiments, the display component 1 further includes a support member 12 disposed on the non-display side of the diaphragm 11 to support the diaphragm 11.

[0100] It is understandable that the display side of the diaphragm 11 refers to the surface of the diaphragm used to display the image projected by the projector during projection. The non-display side of the diaphragm 11 refers to the surface of the diaphragm facing away from the projector during projection; since the image projected by the projector cannot be displayed, this is the non-display side of the diaphragm 11. By providing a support member 12 on the non-display side of the diaphragm 11, a concealed installation of the support member can be achieved.

[0101] Please see also Figures 3 to 6 In some embodiments, the support member 12 includes multiple edge support strips 121 and multiple intermediate support strips 122. Two edge support strips 121 are respectively connected to two first edges 111 and engaged with the first frame 21, and two more edge support strips 121 are respectively connected to two second edges 112 and engaged with the second frame 22. That is, each of the four edges of the diaphragm 11 is provided with an edge support strip 121. The multiple intermediate support strips 122 are spaced apart along the width direction of the projection screen 10. Along the width direction of the projection screen 10, the multiple intermediate support strips 122 are located between the two edge support strips 121 connected to the first edges 111. The intermediate support strips 122 extend along the length direction of the projection screen 10 and connect with the edge support strips 121 located at the second edges 112. The edge support strips 121 and intermediate support strips 122 together support the diaphragm 11 to keep it taut.

[0102] The projection screen disclosed in this application replaces the display component 1 with a support member 12 to tension the diaphragm 11. That is, the support member 12 is connected to the frame structure to directly tension the diaphragm 11, thereby avoiding the use of screws, springs, or other materials connected to the frame structure 2 to tension the diaphragm 11, reducing the use of springs, screws, and other materials. Furthermore, this application designs the structure of the support member 12 to include multiple edge support strips 121 and intermediate support strips 122. The intermediate support strips 122 are spaced apart and connected to the edge support strips 121. Compared to a plate-shaped support member 12 design, the strip-shaped support member 12, with its multiple openings, can effectively support the diaphragm while reducing the overall weight of the projection screen 10. In addition, the support member 12 of this application is engaged with the first frame 21 and the second frame 22 of the frame structure via the edge support strips 121, thereby enabling quick installation of the diaphragm 11 onto the frame structure 2 while simultaneously tensioning the diaphragm 11. This convenient operation improves the user experience.

[0103] Optionally, the edge support strip 121 and the middle support strip 122 may be a middle or solid rod or plate, and this application does not make specific limitations.

[0104] Optionally, the support strip can be attached to the diaphragm 11 by means of adhesive or adhesive strips, etc., and this application does not make specific limitations.

[0105] In some embodiments, the support member 12 may be made of carbon fiber.

[0106] The support member 12 used in this application is made of carbon fiber. While employing support strips to achieve a hollow design, carbon fiber is also used to further reduce the material weight of the support member 12. This reduces the overall weight of the projection screen 10, achieving a lightweight design. Furthermore, the high strength of carbon fiber means that when the support member 12 supports the diaphragm 11, the high strength of the support member 12 prevents the tension caused by the diaphragm 11 from deforming or breaking.

[0107] Please see Figure 4 and Figure 6 In some embodiments, the first frame 21 has a first groove 21a that opens along the width direction of the projection screen 10. The first groove 21a extends along the length direction of the projection screen 10, and a first edge 111 and an edge support strip 121 located at the first edge 111 are located within the first groove 21a. The second frame 22 has a second groove 22a that opens along the length direction of the projection screen 10, and the second groove 22a extends along the width direction of the projection screen 10. A second edge 112 and an edge support strip 121 located at the second edge 112 are located within the second groove 22a.

[0108] In this application, when setting the first groove 21a and the second groove 22a, the first groove 21a and the second groove 22a are configured to correspond to the corresponding first edge 111 and second edge 112, so that the extension direction and opening direction of the first groove 21a are set to correspond to the first edge 111, and the second groove 22a is set in the same way. When installing the first edge 111, the second edge 112, and the edge support strip 121 of the diaphragm 11 on the first frame 21 and the second frame 22, the first groove 21a is set on the first frame 21, and the first edge 111 connected to the edge support strip 121 is inserted into the first groove 21a; the second groove 22a is set on the second frame 22, and the second edge 112 connected to the edge support strip 121 is inserted into the second groove 22a. In this way, quick installation between the display component 1 and the frame structure 2 is achieved, making the installation of the display component 1 and the frame structure 2 convenient and quick, and reducing the installation steps for users. In addition, the structure of the first frame 21 and the second frame 22 with the installation of the diaphragm 11 is simple, which simplifies the overall structure of the frame structure 2 and is conducive to the thinner and lighter design of the frame structure 2.

[0109] Please see Figure 4In some embodiments, the first frame 21 is provided with a stop 211, which is located near the opening of the first groove 21a to block part of the opening of the first groove 21a. The stop 211 is configured to prevent the edge support strip 121 located at the first edge 111 from dislodging from the first groove 21a.

[0110] Optionally, the stop portion 211 may be a square or round protrusion or bump, which is not specifically limited in this application.

[0111] This application takes into account that when the projection screen 10 is installed on a wall or suspended perpendicular to the ground, the edge support strip 121 of the first frame 21 and the first edge 111 of the diaphragm 11 with the edge support strip 121 are prone to falling out of the first groove 21a due to gravity in the width direction of the projection screen 10. Therefore, this application provides a stop 211 near the opening of the first groove 21a, so that the edge support strip 121 located at the first edge 111 abuts against the stop 211, thereby preventing the first edge 111 of the diaphragm 11 and the edge support strip 121 located at the first edge 111 from falling out of the first groove 21a, which helps to maintain the stable installation of the diaphragm 11 on the frame structure 2.

[0112] Please see Figure 4 as well as Figure 6 In some embodiments, the first frame 21 further includes a third groove 21b, which is located behind the first groove 21a along the thickness direction of the projection screen 10. The third groove 21b is open along the width direction of the projection screen 10 and extends through the projection screen 10 along its length direction. The second frame 22 further includes a fourth groove 22b, which is located behind the second groove 22a along the thickness direction of the projection screen 10. The fourth groove 22b is open along the length direction of the projection screen 10 and extends through the projection screen 10 along its width direction. The end of the first frame 21 is connected to the end of the second frame 22, so that the fourth groove 22b communicates with the third groove 21b.

[0113] In addition to the first groove 21a and the second groove 22a respectively provided in the first frame 21 and the second frame 22, this application also provides a third groove 21b on the rear side of the first groove 21a and a fourth groove 22b on the rear side of the second groove 22a. After the first frame 21 and the second frame 22 are connected, the third groove 21b and the fourth groove 22b are connected to form a space for installing connectors, so as to facilitate the installation of connectors to fasten the first frame 21 and the second frame 22.

[0114] In addition, when other connecting parts are installed in the space formed by the third groove 21b and the fourth groove 22b provided on the first frame 21 and the second frame 22, the connecting parts can be installed in the third groove 21b and / or the fourth groove 22b to avoid interfering with the edge of the diaphragm 11 and the edge support strip 121 in the first groove 21a and the second groove 22a.

[0115] Please see Figure 7 as well as Figure 8 In some embodiments, the frame structure 2 further includes a corner connector 23, which is disposed at the connection between the third groove 21b and the fourth groove 22b, and is fixedly connected to the end of the first frame 21 and the end of the second frame 22, respectively.

[0116] In this application, when connecting the first frame 21 and the second frame 22, the third groove 21b and the fourth groove 22b are connected after the first frame 21 and the second frame 22 are connected. An angle connector 23 can be provided at the connection point between the third groove 21b and the fourth groove 22b to securely install the first frame 21 and the second frame 22, thereby improving the connection strength between the first frame 21 and the second frame 22. Furthermore, since the angle connector 23 is hidden at the connection point between the third groove 21b and the fourth groove 22b, it avoids the angle connector 23 being exposed on the outside of the projection screen 10, which helps improve the appearance of the projection screen 10.

[0117] Optionally, the corner connector 23 can be an L-shaped angle iron or angle steel, etc., which is not specifically limited in this application.

[0118] Please see Figure 4 as well as Figure 6 In some embodiments, the first frame 21 includes a first main frame portion 212 and a first sub-frame portion 213, with the first main frame portion 212 forming a third groove 21b. The first sub-frame portion 213 is connected to one side of the first main frame portion 212 along the thickness direction of the projection screen 10 and is spaced apart from the first main frame portion 212 to form a first groove 21a. Correspondingly, the second frame 22 includes a second main frame portion 221 and a second sub-frame portion 222, with the second main frame portion 221 forming a fourth groove 22b. The second sub-frame portion 222 is connected to one side of the second main frame portion 221 along the thickness direction of the projection screen 10 and is spaced apart from the second main frame portion 221 to form a second groove 22a.

[0119] In this application, when setting the first frame 21 and the second frame 22, a third groove 21b and a fourth groove 22b are formed respectively by setting a first main frame portion 212 and a second main frame portion 221. Then, a sub-frame portion is set on one side of the first main frame portion 212 and the second main frame portion 221. The first groove 21a and the second groove 22a are formed by the interval between the sub-frame portion and the main frame portion. In setting the first frame 21 and the second frame 22, this application only needs two frame portions to form two grooves for installation. The structure is simple and can stably install the diaphragm 11. It can reduce the materials required for the frame structure 2 and help to reduce the overall weight of the projection screen 10.

[0120] Optionally, the first main frame portion 212, the second main frame portion 221, the first sub-frame portion 213, and the second sub-frame portion 222 can all be made of metal or non-metal materials, and this application does not make specific limitations.

[0121] Optionally, the first main frame 212, the second main frame 221, the first sub-frame 213, and the second sub-frame 222 can all be plates or rods, and the first main frame 212, the second main frame 221, the first sub-frame 213, and the second sub-frame 222 can all be solid or hollow. This application does not make specific limitations here.

[0122] Please see Figure 4 as well as Figure 6 In some implementations, the width of the first sub-frame 213 along the width direction of the projection screen 10 is w1, which satisfies: 8mm < w1 < 12mm.

[0123] For example, w1 can be 8mm-9mm, 9mm-10mm, 10mm-11mm, 11mm-12mm, etc. For instance, w1 can be 8.5mm, 9mm, 10mm, 10.5mm, 11mm, or 11.5mm, etc.

[0124] In some embodiments, along the length of the projection screen 10, the width of the second sub-frame portion 222 is w2, satisfying: 8mm < w2 < 12mm.

[0125] For example, w2 can be 8mm-9mm, 9mm-10mm, 10mm-11mm, 11mm-12mm, etc. For instance, w2 can be 8.5mm, 9mm, 10mm, 10.5mm, 11mm, or 11.5mm, etc.

[0126] In this application, when the first sub-frame portion 213 and the second sub-frame portion 222 are configured, from the display side of the diaphragm 11, the first sub-frame portion 213 and the second sub-frame portion form the front frame of the diaphragm 11, and the first sub-frame portion 213 and the second sub-frame portion will partially obscure the display effect of the diaphragm 11. This application controls the thickness w1 and w2 of the first sub-frame portion 213 and the second sub-frame portion to avoid w1 and w2 being greater than 12mm. If w1 and w2 are greater than 12mm, the first sub-frame portion 213 and the second sub-frame portion 222 will excessively obscure the edge of the diaphragm 11, affecting the display size of the diaphragm 11 and potentially affecting the projection effect of the projector on the diaphragm 11. On the other hand, it is important to avoid w1 and w2 being less than 8mm. If w1 and w2 are less than 8mm, the space for the first groove 21a and the second groove 22a formed by the first sub-frame portion 213 and the second sub-frame portion 222 will be less, which may be detrimental to the stability of the first edge 111 and the second edge 112 of the diaphragm 11 when installed in the first groove 21a and the second groove 22a. In other words, this application controls the widths w1 and w2 of the first sub-frame portion 213 and the second sub-frame portion to be between 8mm and 12mm. This not only enables the narrow bezel design of the projection screen 10 and improves the display effect of the projection screen 10, but also allows the diaphragm 11 to be stably installed between the sub-frame portion and the main frame portion.

[0127] Please see Figure 4 as well as Figure 6 In some embodiments, the thickness of the first frame 21 and the second frame 22 along the thickness direction of the projection screen 10 is h, satisfying: 10mm < h < 15mm.

[0128] For example, h can be 10mm-11mm, 11mm-12mm, 12mm-13mm, 13mm-14mm, 14mm-15mm, etc. For instance, h can be 10.5mm, 11mm, 11.5mm, 12mm, 12.5mm, 13mm, 13.5mm, 14mm, or 14.5mm, etc.

[0129] This application controls the thickness h of both the first frame 21 and the second frame 22 to be between 10mm and 15mm. When setting h, on the one hand, if h < 10mm, although the first frame 21 and the second frame 22 are relatively thin, an excessively thin h may result in low strength of the first frame 21 and the second frame 22, potentially causing damage to the frame structure 2. On the other hand, if h > 15mm, the first frame 21 and the second frame 22 may be too thick, which is not only detrimental to achieving a thinner design for the projection screen 10, but also may result in excessive weight for the first frame 21 and the second frame 22, hindering the reduction of the overall weight of the projection screen 10. Therefore, by controlling the thickness h of the first frame 21 and the second frame 22 to be between 10mm and 15mm, this application achieves a thinner and lighter projection screen 10 while maintaining a certain structural strength for the frame structure 2, preventing damage to the frame structure 2.

[0130] Please see Figure 9 In some embodiments, the distance between the edge support strip 121 located at the first edge 111 and the adjacent intermediate support strip 122 is d1, and the distance between two adjacent intermediate support strips 122 is d2, satisfying: d1 < d2.

[0131] For example, when edge support strips 121 and intermediate support strips 122 are provided in the width direction of the projection screen 10, the edge support strips 121 located at the first edge 111 and the adjacent intermediate support strips 122 are spaced apart, and the intermediate support strips 122 are also spaced apart from each other. The spacing between the edge support strips 121 located at the first edge 111 and the adjacent intermediate support strips 122 is smaller than the spacing between other adjacent intermediate support strips 122. That is, the support strips near the first edge 111 of the membrane 11 are arranged relatively densely. This application takes into account the possibility of warping at the edge of the membrane 11. Therefore, the support strips are arranged relatively densely at the first edge 111 of the membrane 11 to effectively support the first edge 111 of the membrane 11, which is beneficial to improving the display effect of the projection screen 10.

[0132] Please see Figure 10 and Figure 11 In some embodiments, the frame structure 2 further includes frame beams 24, which include main beam portions 241 and sub-beam portions 242. The main beam portions 241 extend along the length of the projection screen 10 to connect to the middle portions of the two first frame bodies 21 respectively. The two sub-beam portions 242 are located on both sides of the main beam portions 241 along the length of the projection screen and protrude from the main beam portions 241. The two sub-beam portions 242 extend along the length of the projection screen 10 to abut against the inner edges of the first frame bodies 21.

[0133] Considering that the overall structure of the projection screen 10 frame structure 2 disclosed in this application is relatively thin and light, a frame beam 24 is provided in the middle of the frame structure 2, for example, in the middle of the first frame 21. The middle of the two first frames 21 are connected by the frame beam 24, and the middle of the frame structure 2 is supported by the main beam 241 of the frame beam 24, thereby improving the overall strength of the frame structure 2.

[0134] In addition, the sub-beams 242 on both sides of the main beam 241 can also assist in supporting the first frame 21. The sub-beams 242 abut against the inner edges of the two first frames 21 in the width direction of the projection screen 10, so that when the first frame 21 is subjected to force in the width direction of the projection screen 10, the sub-beams 242 can bear the force, thereby reducing the external force received by the first frame 21.

[0135] For example, when the main beam portion 241 is provided with a sub-beam portion 242, the overall structure of the frame beam 24 is U-shaped.

[0136] Optionally, the frame beams 24 can also be connected to the middle of the two second frames 22 along the length of the projection screen 10, thereby enhancing the structural strength of the frame structure 2.

[0137] Optionally, the frame beam 24 may be made of aluminum alloy, carbon fiber, glass fiber, etc., and this application does not make specific limitations.

[0138] Optionally, the main beam 241 and the sub-beam 242 may be long plates or hollow rods, and this application does not make specific limitations.

[0139] Secondly, please see Figure 12 This application also discloses a projection display device 100, which includes a projection host 20 and a projection screen 10 as disclosed in the first aspect, the projection screen 10 being configured to display an image projected by the projection host 20.

[0140] Optionally, the projector 20 may be an ultra-short-throw projector, a short-throw projector, or a long-throw projector, etc., and this application does not make specific limitations.

[0141] In the projection display device 100 disclosed in this application, the projection screen 10 can directly tension the diaphragm 11 through the support member 12, avoiding the use of screws, springs, etc. to connect to the frame structure 2 to tension the diaphragm 11, thus reducing the use of materials such as springs and screws. Secondly, when setting the support member 12, it is composed of multiple edge support strips 121 and middle support strips 122, with the support strips spaced apart, making the support member 12 as a whole hollow shape, so as to effectively support the diaphragm 11 while reducing the overall weight of the projection screen 10. In addition, when installing the diaphragm 11 on the frame structure 2, it is snapped into the first frame 21 and the second frame 22 by the edge support strips 121, realizing the quick installation of the diaphragm 11 on the frame structure 2, which is convenient to operate and easy for users to install, thus improving the user experience.

[0142] While achieving a lightweight and simplified design, the projection screen 10 also provides the diaphragm 11 with good support and tension, which is beneficial to improving the visual effect of the image projected by the projector 20 onto the diaphragm 11.

[0143] The projection screen and projection display device disclosed in the embodiments of this application have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the projection screen and projection display device of this application and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A projection screen, characterized in that, include: The display component includes: A diaphragm configured to display an image projected by a projector, the diaphragm comprising: Along the width direction of the projection screen, the two first edges; The two second edges along the length of the projection screen; A frame structure, wherein the frame structure is disposed at the outer edge of the display component, the frame structure comprising: Two first frames are respectively disposed on the two first edges; Two second frames are respectively disposed on the two second edges; The display component includes: A support member is disposed on the non-display side of the diaphragm to support the diaphragm; The support member includes: Multiple edge support strips, wherein two edge support strips are respectively connected to two first edges and snapped into the first frame, and two edge support strips are respectively connected to two second edges and snapped into the second frame; Multiple intermediate support bars are spaced apart along the width direction of the projection screen. Along the width direction of the projection screen, the multiple intermediate support bars are located between two edge support bars connected to the first edge. The intermediate support bars extend along the length direction of the projection screen and are connected to the edge support bar located at the second edge.

2. The projection screen according to claim 1, characterized in that, The first frame has: A first groove with an opening along the width direction of the projection screen, the first groove extending along the length direction of the projection screen, the first edge and the edge support strip located at the first edge are located in the first groove; The second frame has: A second groove with an opening along the length of the projection screen, the second groove extending along the width of the projection screen, the second edge and the edge support strip located at the second edge are located within the second groove.

3. The projection screen according to claim 2, characterized in that, The first frame is provided with: A stop portion is provided near the opening of the first groove to partially block the opening of the first groove. The stop portion is configured to prevent the edge support strip located at the first edge from dislodging from the first groove.

4. The projection screen according to claim 2, characterized in that, The first frame also has: The third groove is located behind the first groove along the thickness direction of the projection screen. The third groove is open along the width direction of the projection screen and extends through the length direction of the projection screen. The second frame also has: The fourth groove is located behind the second groove along the thickness direction of the projection screen. The fourth groove is open along the length direction of the projection screen and extends through the width direction of the projection screen. The end of the first frame is connected to the end of the second frame so that the fourth groove is connected to the third groove. The framework structure also includes: An angle connector is provided at the connection between the third groove and the fourth groove, and the angle connector is fixedly connected to the end of the first frame and the end of the second frame, respectively.

5. The projection screen according to claim 4, characterized in that, The first frame includes: A first main frame portion, wherein the third groove is formed in the first main frame portion; The first sub-frame portion is connected to one side of the first main frame portion along the thickness direction of the projection screen and is spaced apart from the first main frame portion to form the first groove. The second frame includes: The second main frame portion has the fourth groove formed thereon; The second sub-frame portion is connected to one side of the second main frame portion along the thickness direction of the projection screen and is spaced apart from the second main frame portion to form the second groove.

6. The projection screen according to claim 5, characterized in that, Along the width direction of the projection screen, the width of the first sub-frame is w1, satisfying: 8mm < w1 < 12mm; and / or, Along the length of the projection screen, the width of the second sub-frame is w2, which satisfies: 8mm < w2 < 12mm.

7. The projection screen according to claim 1, characterized in that, The support member is made of carbon fiber; and / or, Along the thickness direction of the projection screen, the thickness of both the first frame and the second frame is h, satisfying: 10mm < h < 15mm.

8. The projection screen according to claim 1, characterized in that, The distance between the edge support strip located at the first edge and the adjacent intermediate support strip is d1, and the distance between two adjacent intermediate support strips is d2, satisfying: d1 < d2.

9. The projection screen according to any one of claims 1-8, characterized in that, The framework structure also includes: Frame beams, the frame beams comprising: The main beam extends along the length of the projection screen to connect to the middle of the two first frames respectively; The two sub-beams are located on both sides of the main beam along the length of the projection screen and protrude from the main beam. The two sub-beams extend along the length of the projection screen to abut against the inner edge of the first frame.

10. A projection display device, characterized in that, include: Projector host; The projection screen as described in any one of claims 1-9, wherein the projection screen is configured to display an image projected by the projection host.

Images