A projection sheet and a projection disc

Abstract

The utility model provides a kind of projection sheet and projection disc, it includes: bearing plate body and film, the top or bottom of bearing plate body is recessed inward and forms accommodating groove, the film is embedded in the accommodating groove, the bearing plate body is transparent in the position corresponding the accommodating groove;The film is coated with shadowless glue on the side corresponding the opening of the accommodating groove, the shadowless glue seals and fixes the film in the accommodating groove, light can pass through the bearing plate body, the film and the shadowless glue and project pattern to outside. By the above-mentioned scheme, the film is coated with shadowless glue on the side exposed to air, so that the film is sealed and fixed in the accommodating groove, while reducing the thickness of the projection sheet, the brightness and clarity of the projection pattern are improved. Shadowless glue can also achieve heat transfer and physical isolation of dust for the film, delay the oxidation of the film, and greatly improve the service life of the projection sheet.

Description

Technical Field

[0001] This utility model belongs to the field of projection lighting technology, and specifically relates to a projection sheet and projection disk. Background Technology

[0002] In existing designs, a projection disc typically includes: a projection disc body, a projection disc cover, and a film. The top of the projection disc body is recessed inward to form a cover receiving groove, and the bottom of the cover receiving groove is recessed inward to form a film receiving groove. After the film is embedded in the film receiving groove, the projection disc cover is embedded in the cover receiving groove and ultrasonically welded to the projection disc body. This seals the film between the projection disc body and the projection disc cover. The positions of the projection disc body and the projection disc cover corresponding to the film pattern are both set to be transparent to project the pattern on the film to the outside. Compared to the method of opening holes in the projection disc body and projection disc cover at the corresponding positions of the film pattern, the above-mentioned sealed installation method can physically isolate the film from heat and dust, delaying the oxidation of the film to a certain extent and extending its service life. However, the above sealing method is only suitable for situations with low light source brightness. When the light source brightness is high, the above-mentioned sealed installation method also has its drawbacks. First, since the projection disc body and projection disc cover have a certain thickness, under the same light source intensity, the clarity of the projected pattern is less than that of the open method. Second, if the clarity is to be improved, the light source intensity must be increased. Due to the light absorption effect of the film body, the temperature of the film will rise after the light source intensity is increased. Since there are gaps between the film and the projection disc body and projection disc cover, the heat of the film evaporates slowly through the projection disc body and projection disc cover to the outside, which will accelerate the oxidation of the film and reduce its service life. Utility Model Content

[0003] The main objective of this invention is to provide a projection sheet and projection disk. By applying a UV-curing adhesive to the air-exposed side of the film, the film is tightly sealed and fixed in the receiving groove, while the UV-curing adhesive adheres tightly to the film. This reduces the thickness of the projection sheet while improving the brightness and clarity of the projected image. Furthermore, the UV-curing adhesive has good thermal conductivity, which can also conduct heat to the film and physically isolate dust, delaying the oxidation of the film and significantly extending the service life of the projection sheet.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: A projection sheet includes: a carrier plate body and a film. The top or bottom of the carrier plate body is recessed to form a receiving groove, and the film is embedded in the receiving groove. The carrier plate body is transparent at the position corresponding to the receiving groove. A UV-curing adhesive is applied to one side of the film corresponding to the opening of the receiving groove. The UV-curing adhesive seals and fixes the film within the receiving groove, allowing light to pass through the carrier plate body, the film, and the UV-curing adhesive to project a pattern to the outside.

[0005] As a preferred embodiment of the slide, the bottom of the receiving groove is coated with the shadowless adhesive to tightly adhere and fix the film to the bottom of the receiving groove.

[0006] As a preferred embodiment of the slide, the bottom edge of the receiving groove is provided with an overflow groove, and during the process of the film being attached and fixed to the bottom of the receiving groove, excess shadowless adhesive is squeezed into the overflow groove.

[0007] As a preferred embodiment of the slide, the slide further includes a pressure ring, which is embedded in the receiving groove and pressed against the unpatterned portion of the film edge, and the pressure ring is fixed to the surface of the film by applying the shadowless adhesive.

[0008] This utility model also provides a projection sheet, which includes: a carrier plate body, a carrier plate cover, and a film. The film is sandwiched between the carrier plate body and the carrier plate cover. The carrier plate body and the carrier plate cover are each provided with a first projection perforation at the position corresponding to the pattern on the film. The film is coated with a UV-curing adhesive on one side corresponding to the opening of the first projection perforation. The UV-curing adhesive seals and fixes the film between the carrier plate body and the carrier plate cover. Light can pass through the first projection perforation, the film, and the UV-curing adhesive to project a pattern to the outside.

[0009] As a preferred embodiment of the projection sheet, the projection sheet further includes a pressure ring, which is embedded in the first projection perforation of the carrier plate body and / or the first projection perforation of the carrier plate cover and then pressed onto the unpatterned portion of the film surface, and the pressure ring is fixed to the film surface by applying the shadowless adhesive.

[0010] This utility model also provides a projection disk, including: a projection disk body, which further includes the projection sheet described in any of the above claims; the top surface of the projection disk body is recessed downward to form a mounting groove, the bottom of the mounting groove is provided with a second projection through hole, the projection sheet is detachably mounted in the mounting groove, and light passes through the second projection through hole and the projection sheet in sequence to project a pattern to the outside.

[0011] As a preferred embodiment of the projection panel, a mounting positioning groove is provided on the top and / or bottom of the projection panel, and the side of the projection panel with the mounting positioning groove is mounted in the mounting groove.

[0012] The beneficial effects of this utility model are: This invention provides a projection sheet and a projection disk. In one type of projection sheet, a receiving groove is provided at the top or bottom of the carrier plate body. A film is coated with UV-curing adhesive on one side of the film corresponding to the opening of the receiving groove. The UV-curing adhesive seals and fixes the film to the receiving groove. This solution reduces the thickness of the projection sheet while improving the brightness and clarity of the projected image. Furthermore, due to the sealing and fixing effect of the UV-curing adhesive, the film and the UV-curing adhesive are tightly bonded, and the film is not directly exposed to the air. This allows the UV-curing adhesive to transfer heat to the film while physically isolating it from dust, thus delaying the oxidation of the film and significantly improving its performance. To extend the lifespan of the projector, in another type of projector, both the carrier plate body and the carrier plate cover have first projection perforations at the positions corresponding to the projection pattern on the film. One side of the film corresponding to the opening of the first projection perforation is coated with UV-curing adhesive, which seals and fixes the film between the carrier plate body and the carrier plate cover. Using this method, the two first projection perforations further reduce the thickness of the projector while improving the brightness and clarity of the projection pattern. Furthermore, the UV-curing adhesive can transfer heat to the film while physically isolating it from dust, delaying oxidation and significantly extending the lifespan of the projector. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort, and all of them fall within the protection scope of this utility model. Figure 1 This is a schematic diagram of the structure of the projection sheet shown in Embodiment 1 of this utility model; Figure 2 yes Figure 1 A cross-sectional view of the slide shown; Figure 3 yes Figure 1 The exploded view shown in the slide; Figure 4 This is an exploded view of the projection disk shown in Embodiment 1 of this utility model; Figure 5 This is a schematic diagram of the structure of the projection sheet shown in Embodiment 2 of this utility model; Figure 6 yes Figure 5 A cross-sectional view of the slide shown; Figure 7 yes Figure 5 The exploded view shown in the slide; Figure 8 This is an exploded view of the projection disk shown in Embodiment 2 of this utility model. Detailed Implementation

[0014] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0015] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a rotatable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Existing projection disc designs generally include: a projection disc body, a projection disc cover, and a film. The top of the projection disc body is recessed inward to form a cover receiving groove, and the bottom of the cover receiving groove is recessed inward to form a film receiving groove. The film is embedded in the film receiving groove, and the projection disc cover is embedded in the cover receiving groove, thereby sealing the film between the projection disc body and the projection disc cover. The positions of the projection disc body and the projection disc cover corresponding to the film pattern are both set to be transparent to project the pattern on the film to the outside. Compared to the method of having openings in the projection panel body and projection panel cover at the corresponding positions on the film pattern, the sealed installation method can isolate the film from heat and dust, and delay the oxidation of the film, thus extending the life of the film. However, the sealed installation method also has its drawbacks. Since both the projection panel body and projection panel cover have a certain thickness, under the same light source intensity, the clarity of the projected image is less than that of the open method. If you want to improve the clarity, you can only increase the light source intensity, which will further increase the overall temperature of the projection panel.

[0017] Example 1 like Figure 1 , Figure 2 and Figure 3As shown, Embodiment 1 of this utility model provides a projection sheet 100, which includes: a carrier plate body 110 and a film 120. The top or bottom of the carrier plate body 110 is recessed inward to form a receiving groove 111. The film 120 is embedded in the receiving groove 111. The carrier plate body 110 is transparent at the position corresponding to the receiving groove 111. The film 120 has a side coated with UV-curing adhesive (not shown) corresponding to the opening of the receiving groove 111. The UV-curing adhesive (not shown) seals and fixes the film 120 in the receiving groove 111, and light can pass through the carrier plate body 110, the film 120 and the UV-curing adhesive to project a pattern to the outside.

[0018] In this utility model, the above-mentioned solution is adopted. By providing a receiving groove 111 at the top or bottom of the support plate body 110, the film 120 is coated with the shadowless adhesive (not shown) on one side corresponding to the opening of the receiving groove 111. The film 120 is sealed and fixed to the receiving groove 111 by the shadowless adhesive (not shown). This reduces the thickness of the projection sheet 100 while improving the brightness and clarity of the projected pattern. Moreover, due to the sealing and fixing by the shadowless adhesive (not shown), the film is not directly exposed to the air. The shadowless adhesive (not shown) not only isolates the film 120 from heat and dust, but also slows down the oxidation of the film 120, greatly improving the service life of the projection sheet 100. To improve the fit between the film 120 and the receiving groove 111, after applying the UV-curing adhesive (not shown) to the bottom of the receiving groove 111, the film 120 is tightly adhered and fixed to the bottom of the receiving groove 111. The UV-curing adhesive (not shown) then fills the tiny gaps between the film 120 and the receiving groove 111, further improving the fit between the film 120 and the receiving groove 111 and further enhancing the heat dissipation capacity of the film 120.

[0019] To improve the flatness of the film 120 adhering to the bottom of the receiving groove 111, an overflow groove 1111 is provided on the edge of the bottom of the receiving groove 111. During the process of the film 120 being adhered and fixed to the bottom of the receiving groove 111, excess UV-curing adhesive (not shown) is squeezed into the overflow groove 1111, preventing excess UV-curing adhesive (not shown) from accumulating between the film 120 and the receiving groove 111, thereby avoiding unevenness in the adhesion of the film 120 to the bottom of the receiving groove 111 due to the accumulation of UV-curing adhesive (not shown).

[0020] To prevent the edges of the film 120 from curling up and to improve the flatness of the film 120, the projection sheet 100 further includes a pressure ring 130. The pressure ring 130 is embedded in the receiving groove 111 and pressed against the unpatterned portion of the edge of the film 120. The pressure ring 130 is fixed to the surface of the film 120 by applying the UV-curing adhesive (not shown). Thus, the pressure ring 130 presses down the edge of the film 120, preventing the edge of the film 120 from curling up. At the same time, the UV-curing adhesive (not shown) solidified in the space inside the pressure ring 130 can also press down the middle portion of the film 120, maintaining its flatness.

[0021] like Figure 4 As shown, this utility model discloses a projection disk 140, comprising: a projection disk body 150, which further includes a projection sheet 100 as described above; the top surface of the projection disk body 150 is recessed downward to form a mounting groove 151, and the bottom of the mounting groove 151 is provided with a second projection through hole 152; the projection sheet 100 is detachably mounted in the mounting groove 151, and light passes through the second projection through hole 152 and the projection sheet 100 in sequence to project a pattern to the outside; moreover, by adopting the above solution, the projection sheet 100 is replaceable, and replacement is convenient and quick. When the user is tired of the content of the projection sheet 100 or the projection sheet 100 is damaged, the projection content can be changed or the projection disk 140 can be maintained by replacing the projection sheet 100.

[0022] In order to determine the installation direction of the projection sheet 100, an installation positioning groove 101 is provided on the top or bottom of the projection sheet 100. The side of the projection sheet 100 with the installation positioning groove 101 is installed in the installation groove 151, so as to facilitate the identification of which side of the projection sheet 100 is installed in the installation groove 151.

[0023] Example 2 As shown in the figure Figure 5 , Figure 6 and Figure 7 As shown, Embodiment 2 of this utility model provides a projection sheet 200, which includes: a carrier plate body 210, a carrier plate cover 220, and a film 230. The film 230 is sandwiched between the carrier plate body 210 and the carrier plate cover 220. The carrier plate body 210 and the carrier plate cover 220 are each provided with a first projection perforation 211 and 221 at the position corresponding to the pattern of the film 230. The film 230 has a side coated with UV-curing adhesive (not shown) corresponding to the openings of the first projection holes 211 and 221. The UV-curing adhesive (not shown) seals and fixes the film 230 between the carrier plate body 210 and the carrier plate cover 220. Light can pass through the first projection holes 211 and 221, the film 230 and the UV-curing adhesive to project a pattern to the outside.

[0024] In this utility model, by adopting the above solution, by providing first projection holes 211 and 221 on the carrier plate body 210 and the carrier plate cover 220, the two first projection holes 211 and 221 further reduce the thickness of the projection sheet 200 while improving the brightness and clarity of the projected pattern. Moreover, the shadowless adhesive (not shown) can also isolate the film 230 from heat and dust, delay the oxidation of the film 230, and greatly improve the service life of the projection sheet 200.

[0025] To prevent the edges of the film 230 from warping and to improve its flatness, the projection sheet 200 further includes a pressure ring 240. The pressure ring 240 is embedded in the first projection hole 211 of the support plate body 210 and / or the first projection hole 221 of the support plate cover 220, and then pressed against the unpatterned portion of the film 230 surface. That is, the pressure ring 240 can be individually embedded in the first projection hole 211 of the support plate body 210 or the first projection hole 221 of the support plate cover 220, or in the first projection hole 211 of the support plate body 210. The pressure ring 240 is embedded in the first projection hole 221 of the cover plate 220 of the support plate. The pressure ring 240 is fixed to the surface of the film 230 by applying the shadowless adhesive (not shown). Thus, the pressure ring 240 presses down the edge of the film 230 at the first projection holes 211 and 221. While preventing the edge of the film 230 at the first projection holes 211 and 221 from wrinkling, the shadowless adhesive (not shown) solidified in the space inside the pressure ring 240 can also press down the middle part of the film 230 to maintain its flatness.

[0026] like Figure 8As shown, this utility model also provides a projection disk 250, including: a projection disk body 260, which further includes a projection sheet 200 as described above; the top surface of the projection disk body 260 is recessed downward to form a mounting groove 261, the bottom of the mounting groove 261 is provided with a second projection through hole 262, the projection sheet 200 is detachably installed in the mounting groove 261, and light passes through the second projection through hole 262 and the projection sheet 200 in sequence to project a pattern to the outside, that is, the light projects a pattern to the outside through the second projection through hole 262 of the projection disk body 260, the first projection hole 211 of the carrier plate body 210, the shadowless adhesive (not shown), the film 230, the shadowless adhesive (not shown), and the first projection hole 221 of the carrier plate cover 220 in sequence.

[0027] In order to determine the installation direction of the projection sheet 200, a mounting positioning groove 201 is provided on the top or bottom of the projection sheet 200. The side of the projection sheet 200 with the mounting positioning groove 201 is installed in the mounting groove 261, so as to make it easier to distinguish which side of the projection sheet 200 is installed in the mounting groove 261.

[0028] The present invention has been described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and alterations to these embodiments can be made without departing from the principles and spirit of the present invention, and these changes still fall within the protection scope of the present invention.

Claims

1. A slide, characterized in that, include: The carrier plate body and the film are provided. The top or bottom of the carrier plate body is recessed inward to form a receiving groove. The film is embedded in the receiving groove. The carrier plate body is transparent at the position corresponding to the receiving groove. The film is coated with UV-curing adhesive on one side corresponding to the opening of the receiving groove. The UV-curing adhesive seals and fixes the film in the receiving groove, allowing light to pass through the carrier plate body, the film, and the UV-curing adhesive to project a pattern to the outside.

2. The slide as described in claim 1, characterized in that, The bottom of the receiving tank is coated with the shadowless adhesive, and the film is tightly attached and fixed to the bottom of the receiving tank.

3. The slide as described in claim 2, characterized in that, The bottom edge of the receiving groove is provided with an overflow ring groove. During the process of the film being attached and fixed to the bottom of the receiving groove, the excess adhesive is squeezed into the overflow ring groove.

4. The slide as described in any one of claims 1-3, characterized in that, The projection sheet further includes a pressure ring, which is embedded in the receiving groove and pressed onto the unpatterned portion of the film edge. The pressure ring is fixed to the surface of the film by applying the shadowless adhesive.

5. A slide, characterized in that, include: The carrier plate body, the carrier plate cover, and the film are provided. The film is sandwiched between the carrier plate body and the carrier plate cover. The carrier plate body and the carrier plate cover are provided with a first projection perforation at the position corresponding to the pattern of the film. The film is coated with UV-curing adhesive on one side corresponding to the opening of the first projection perforation. The UV-curing adhesive seals and fixes the film between the carrier plate body and the cover plate of the carrier plate. Light can pass through the first projection perforation, the film, and the UV-curing adhesive to project a pattern to the outside.

6. The slide as described in claim 5, characterized in that, The projection sheet further includes a pressure ring, which is embedded in the first projection perforation of the carrier plate body and / or the first projection perforation of the carrier plate cover and then pressed onto the unpatterned portion of the film surface. The pressure ring is fixed to the film surface by applying the shadowless adhesive.

7. A projection screen, comprising: The projection disk body is characterized in that it further includes a projection sheet as described in any one of claims 1-6; The top surface of the projection disc body is recessed downward to form a mounting groove. The bottom of the mounting groove is provided with a second projection perforation. The projection sheet can be detachably installed in the mounting groove. Light passes through the second projection perforation and the projection sheet in sequence and projects a pattern to the outside.

8. The projection disk as described in claim 7, characterized in that, The projection sheet is provided with a mounting positioning groove at the top and / or bottom, and the side of the projection sheet with the mounting positioning groove is mounted in the mounting groove.

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