CN110456606A - Projection screen capable of multi-angle projection imaging - Google Patents

Abstract

The disclosure relate to it is a kind of can multi-angle projection imaging projection screen, include a basement membrane and a dope layer.The basement membrane includes the tooth-like part of a body layer and multiple connection body layers, the outer profile of each tooth-like part includes at least one first plane and at least one second plane, first plane has different angles of reflection from the second plane, to provide the projection imaging of multi-angle；The dope layer includes the reflecting layer of an outer profile for being set to multiple tooth-like parts and one is set to light-absorption layer on reflecting layer, wherein sees it with projection orientation, dope layer is positioned at the rear of basement membrane.To, the disclosure in addition to can possess provided under the ability for resisting environment light can multi-angle projection imaging projection screen, while can avoid the dope layer in use by artificial contact wear, extend service life.

Description

Projection screen capable of multi-angle projection imaging

technical field

The present disclosure relates to a projection screen capable of multi-angle projection and imaging, especially a projection screen capable of multi-angle projection and imaging suitable for anti-environmental light.

Background technique

In the existing technology, a projection screen has been developed in the past that can still make the image projected by the projector present high contrast and vivid colors under normal lighting conditions. Please refer to Figure 6, which is an existing projection screen side view. Such as the high-definition projection screen disclosed in Taiwan Patent No. M374077U1, it has an optical film layer 92, and the optical film layer 92 includes a light-absorbing surface 921 with a light-absorbing layer 922 and an active surface with a reflective layer 924 923. Wherein, the light-absorbing layer 922 absorbs and blocks ambient light, and uses the reflective layer to increase the reflection effect of the projected image, thereby improving the brightness and uniformity of the image, so that the audience can clearly watch the projected image.

However, in the prior art, most of the projection angles are sacrificed in order to improve the shading of ambient light, that is, the prior art can only place a projection device 95 in a single projection direction, and the projection angle cannot be changed. In addition, the reflective layer 924 and the light-absorbing layer 922 in the prior art are exposed on the screen surface of the optical film layer 92, so they are prone to artificial contact wear in use, which will greatly reduce the service life of the projection screen.

Because of this, the inventor, based on the spirit of active invention, desperately thought of a projection screen capable of multi-angle projection imaging that can solve the above problems, and finally completed the disclosure after several researches and experiments.

public content

The main purpose of the present disclosure is to provide a projection screen capable of multi-angle projection and imaging. In addition to continuously maintaining the ability to resist ambient light, the projection screen of the present disclosure will be capable of multi-angle projection through the improved base film and paint layer imaging, and at the same time prevent the paint layer from being subjected to artificial contact wear in use, prolonging the service life.

In order to achieve the above object, the projection screen capable of multi-angle projection imaging of the present disclosure includes a base film and a paint layer. The base film includes a main body layer and a plurality of tooth-shaped parts connected to the main body layer, and the outer contour of each tooth-shaped part includes at least one first plane and at least one second plane, and the first plane and the second plane It has different reflection angles to provide multi-angle projection imaging; the paint layer includes a reflective layer and a light-absorbing layer, and the reflective layer is arranged on the reflective layer of the outer contour of the plurality of tooth-shaped parts for projecting The image light is reflected to the user, and the light absorbing layer is disposed on the reflecting layer to absorb and block ambient light.

Wherein, the paint layer of the present disclosure has a structural feature, which is that if viewed from the projection direction, the paint layer is located behind the base film, that is, the user cannot easily touch the paint layer on the base film surface, Therefore, it can effectively avoid artificial contact wear and prolong the service life.

The outer contour of the tooth-shaped portion may further include a diffusion layer with a surface optical microstructure, which can be made by chemical wet etching or physical dry etching, and the treated surface of the optical microstructure can allow light to reach a specific Angle diffusion effect, so that the projected image light from all angles can be smoothly reflected to the user's vision.

The above-mentioned reflective layer can be made of aluminum, silver, chromium, nickel or tin with high reflective material; the above-mentioned light-absorbing layer can include black pigment and resin. Therefore, the reflective layer can faithfully reflect the projected image light to the user through the above-mentioned high-reflective material, while the light-absorbing layer formed of materials such as black pigment and resin can absorb and block ambient light and cannot reflect it to the user.

The projection orientation may include a first projection orientation for at least one first plane reflective layer to reflect to the user and a second projection orientation for at least one second plane reflective layer to reflect to the user. Therefore, the user can determine the incident position of the image projection light according to the slope of the first plane and the relationship between the incident angle and the reflection angle, or the image projection light can be emitted from the horizontal direction and reflected to the user by at least one reflective layer on the second plane .

The above-mentioned base film can be a transparent plastic film. Therefore, the coating layer of the present disclosure can be arranged behind the base film, and the image projection light can penetrate the base film back and forth before and after reflection, so as to achieve the effect of reflection imaging.

The above summary and the following detailed description are all exemplary in order to further illustrate the patent scope of the present disclosure. Other purposes and advantages of the present disclosure will be described in subsequent descriptions and illustrations.

Description of drawings

FIG. 1 is a side view of a projection screen capable of multi-angle projection and imaging according to a first embodiment of the present disclosure.

Fig. 2A, Fig. 2B and Fig. 2C are the flow charts of making the projection screen capable of multi-angle projection and imaging according to the first embodiment of the present disclosure.

FIG. 3 is a side view of a projection screen capable of multi-angle projection and imaging according to a second embodiment of the present disclosure.

Fig. 4 is a schematic diagram of a first projection orientation of a projection screen capable of multi-angle projection imaging according to a second embodiment of the present disclosure.

Fig. 5 is a schematic diagram of a second projection orientation of the projection screen capable of multi-angle projection imaging according to the second embodiment of the present disclosure.

Fig. 6 is a side view of a conventional projection screen.

【Symbol Description】

1, 1’ projection screen 2, 2’ base film

20 mold 21, 21’ body layer

22, 22' teeth 22a, 22a' first plane

22b, 22b’ second plane 3, 3’ paint layer

31, 31' reflective layer 32, 32' light absorbing layer

4, 4’ diffusion layer 5 projection device

92 Optical film layer 921 Light-absorbing surface

922 Absorbing layer 923 Action surface

924 reflective layer 95 projection device

D1 first projection orientation D2 second projection orientation

Detailed ways

Please refer to FIG. 1 , which is a side view of a projection screen capable of multi-angle projection and imaging according to a first embodiment of the present disclosure. Shown in the figure is a projection screen 1 capable of multi-angle projection and imaging, which mainly includes a base film 2 and a paint layer 3. In this embodiment, the base film 2 is a transparent plastic film, which can be polyester film, polyester film, etc. Materials such as carbonate film or ABS fat film (acrylonitrile-butadiene-styrene copolymer), including a main body layer 21 and a plurality of teeth-like parts 22 connected to the main body layer 21, the present embodiment includes four tooth-like parts 22, which can be adjusted according to the size and shape of the main body layer 21, and is not limited to the above number. Wherein, the outer contour of each tooth-shaped portion 22 in the present disclosure includes two first planes 22a and a second plane 22b, which are used to provide multi-angle reflective surfaces and light-absorbing surfaces, which are beneficial to light transmission and projection imaging, and the first The ratio of the numbers of the planes 22a to the second planes 22b also varies with different designs, so the numbers are not limited thereto. In addition, the outer contour of the tooth-shaped portion 22 further includes a diffusion layer 4 with a surface optical microstructure, which can be made by chemical wet etching or physical dry etching, and the rough surface after treatment can diffuse light Effect, so that the projected image light from all angles can be smoothly reflected to the user's vision.

Furthermore, the paint layer 3 includes a reflective layer 31 and a light-absorbing layer 32. In this embodiment, the reflective layer 31 is made of a highly reflective material such as aluminum, silver, chromium, nickel or tin, and is arranged on the diffusion layer 4. With better light reflectivity, it can faithfully reflect the projected image light to the user to achieve the effect of projected imaging. On the other hand, the light-absorbing layer 32 is formed by mixing black pigment into resin. In this embodiment, black pigment is mixed into acrylic resin to make it have good absorbing brightness, so as to absorb and block ambient light, so that it cannot be Reflected to the user, the present disclosure can perform projection imaging without obscuring ambient light.

Next, please refer to FIG. 2A , FIG. 2B and FIG. 2C , which are all flowcharts of making a projection screen capable of multi-angle projection and imaging according to the first embodiment of the present disclosure. As shown in Figure 2A, at first, the mold 20 defines the structural range of the tooth-shaped portion 22 with a diamond cutter or other cutting tools, and determines the slope and quantity of the first plane 22a and the second plane 22b, and completes the mold 20. initial production. Next, the micro-processing of the outer contour of the tooth-shaped portion 22 will be carried out in the way of yellow light lithography. In this embodiment, the outer contour of the tooth-shaped portion 22 is described by chemical wet etching or physical dry etching to have a diffuse surface optical microstructure. Layer 4, so that the light can achieve a diffuse effect.

Furthermore, as shown in FIG. 2B, in order to obtain the shape of the first plane 22a and the second plane 22b of the tooth-shaped portion 22, the light-cured transparent resin is filled into the mold 20, and the main body layer 21 is covered on it. After removing the internal gas and pressing to an appropriate thickness, the transparent resin filled inside will be fully bonded to the mold 20. At this time, if a specific wavelength of light is irradiated, the internal polymerization reaction will be triggered to form a cured structure. . Finally, as shown in FIG. 2C , the light-cured transparent resin will become the tooth-like portion 22 of the base film 2, and during the demoulding process, it will be separated from the mold 20 together with the main body layer 21, and the base film of the present disclosure will be completed. 2 part production.

As for the part of the coating layer 3, the reflective layer 31 can be covered on the outer contour of the tooth-shaped part 22 by vacuum evaporation, vacuum sputtering or coating, so as to completely cover the first plane 22a and the second plane 22b. , so that the projected image light can be faithfully reflected to the user; finally, the light-absorbing layer 32 is coated on the reflective layer 31, and the outermost layer of the structure absorbs ambient light from the outside, so that the projection screen 1 Projection imaging is possible without obscuring ambient light.

Please refer to FIG. 3 , which is a side view of a projection screen capable of multi-angle projection and imaging according to a second embodiment of the present disclosure. The figure shows another projection screen 1' capable of multi-angle projection imaging, which is the same as the first embodiment in basic structure, mainly including a base film 2' and a paint layer 3', the base film 2' includes a main body Layer 21' and a plurality of teeth-shaped parts 22' connected to the main body layer 21'. The number is limited. Wherein, the outer contour of each tooth-shaped portion 22' in this embodiment includes two first planes 22a' and one second plane 22b', which are used to provide multi-angle reflective surfaces and light-absorbing surfaces, which is beneficial to light transmission and projection imaging . In addition, the definitions of the coating layer 3' and the diffusion layer 4' are the same as those of the first embodiment. The coating layer 3' includes a reflective layer 31' and a light-absorbing layer 32', and the diffusion layer 4' is formed by chemical wet etching or Physical dry etching creates a rough surface with a surface optical microstructure. The only difference is that the second embodiment has a more optimized contour shape, wherein the reflection angle of the first plane 22a' is 20°, which falls within the optimal angle range of 15°-25°, which will make The present disclosure has a more excellent projection effect, so that the image can be completely reflected in the eyes of the user.

Please refer to FIG. 4 and FIG. 5 , which are schematic diagrams of the first projection orientation and the second projection orientation of the projection screen capable of multi-angle projection imaging according to the second embodiment of the present disclosure, respectively. As shown in FIG. 4, when the projection device 5 is located in the first projection orientation D1, the image projection light from the projection device 5 is mainly reflected by the reflective layer 31' of the first plane 22a'. Therefore, the first projection orientation D1 will determine the incident position of the image projection light according to the slope of the first plane 22a' and the relationship between the incident angle and the reflection angle. Furthermore, even if the first plane 22a' is set with a negative slope, it is enough to move the first projection direction D1 upward to the user's eyes, and it is not limited to the pattern in the drawing.

As shown in FIG. 5, when the projection device 5 is located in the second projection orientation D2, the image projection light from the projection device 5 is mainly reflected by the reflective layer 31' of the second plane 22b'. Therefore, the image projection light of the projection device 5 can be emitted from the horizontal direction and reflected to the user by the reflective layer 31' of the second plane 22b' to achieve the effect of projection imaging.

Wherein, no matter which projection orientation is located above, the paint layer 3, 3' is located behind the base film 2, 2'. Thereby, can effectively avoid that described coating layer suffers from man-made contact wear in use by above-mentioned design, prolong service life.

The above-mentioned embodiments are only examples for convenience of description, and the scope of rights claimed in the present disclosure should be based on the scope of the patent application, rather than limited to the above-mentioned embodiments.

Claims (8)

1. one kind can multi-angle projection imaging projection screen, include:

One basement membrane, including a body layer and multiple tooth-like parts for connecting the body layer, the outer profile of each tooth-like part includes extremely Few one first plane and at least one second plane, wherein first plane has different angles of reflection from second plane；And

One dope layer, the reflecting layer for the outer profile for being set to multiple tooth-like part including one and one is set to suction on the reflecting layer Photosphere, wherein it is seen with projection orientation, which is the rear positioned at the basement membrane, is connect with to avoid using by artificial Touching abrasion.

2. as claimed in claim 1 can multi-angle projection imaging projection screen, wherein the outer profile of the tooth-like part, which further includes one, to be had The diffusion layer of surface optical micro-structure, to allow light to achieve the effect that diffusion.

3. as claimed in claim 2 can multi-angle projection imaging projection screen, wherein the diffusion layer be via chemical wet etch or Made by physics dry-etching.

4. as claimed in claim 1 can multi-angle projection imaging projection screen, wherein the reflecting layer is aluminium, silver, chromium, nickel or tin High reflective material.

5. as claimed in claim 1 can multi-angle projection imaging projection screen, wherein the light-absorption layer includes black pigment and resin.

6. as claimed in claim 1 can multi-angle projection imaging projection screen, wherein the projection orientation include one for this at least The reflecting layer of one first plane reflexes to the first projection orientation and being somebody's turn to do at least one second plane of user Reflecting layer reflexes to the second projection orientation of user.

7. as claimed in claim 1 can multi-angle projection imaging projection screen, wherein the basement membrane be an overlay.

8. as claimed in claim 1 can multi-angle projection imaging projection screen, wherein the best angle of the angle of reflection of first plane Range falls within 15 °~25 °.