TWM559425U - Scratch-resistant projection screen - Google Patents

Abstract

The present invention is a scratch-resistant projection screen comprising: a substrate layer and a micro-iridium structure array; wherein the micro-turn structure array is disposed on a first surface of the substrate layer, and comprises a plurality of micro-inch units, each The micro-twisting unit respectively comprises an absorbing surface, an active surface, an absorbing layer, an absorbing surface scratch-resistant layer and an active surface scratch-resistant layer; the absorbing layer is disposed on the absorbing surface, and the absorbing surface is coated with a scratch-resistant layer a surface of the absorbing layer; the surface of the absorbing layer is coated with the surface; the angle of formation of the absorbing surface causes the absorbing layer to absorb the ambient light source, thereby improving the contrast and clarity of the projection image; the absorbing layer and the effect The surface scratch-resistant layer provides protection to the absorbing surface and the active surface to prevent the absorbing surface and the active surface from being damaged by foreign objects.

Description

Anti-scratch projection screen

The novel type is a projection screen, especially a scratch-resistant projection screen.

Projection screen In order to improve the contrast and colorful effect of the image projected by the projector and reduce the impact of ambient light sources, a microstructure array is always installed, and the surface of the microstructure array is often covered with an anti-glare film to prevent glare. And prevent the projection screen from scratching. However, when using ultra-high-resolution 4K projection systems that are becoming more and more popular today, the light of the projector will diffuse after entering the anti-glare film, resulting in blurred imaging, and the anti-glare film will also cause the brightness and The vividness of color is reduced. Further, compared to other projection technologies, when using a front-projection ultra-short-focus projection system, the angle of the projection light of the projector is larger, so when the projection light of the larger incident angle is incident on the anti-glare film, it is easier A reflection phenomenon is generated and the projection light of the reflection part makes the ceiling simultaneously present a reflection image, which affects the viewing effect.

In summary, the conventional anti-glare film covers the surface of the projection screen. Although it can achieve the effect of preventing the projection screen from being scratched, under the current projection technology trend, the anti-glare film affects the effect of the projection screen imaging. Therefore, it is necessary to further improve the existing technology.

In view of the fact that although the anti-glare film of the prior art can achieve the anti-scratch purpose of preventing the projection screen from being damaged by foreign objects, the anti-glare film affects the imaging effect of the projector on the projection screen. The present invention provides a scratch-resistant projection screen. The scratch-resistant projection screen includes a base layer and a micro chirped array structure. The base layer has a first surface and a second surface opposite to each other, and the micro chirped array structure includes a plurality of micro chirped cells, each of which has a setting surface, an absorbing surface, an active surface, An absorption layer, an absorption surface anti-scratch layer, and an active surface anti-scratch layer, wherein each of the setting surfaces is disposed on the first surface of the base layer, and each of the absorption surfaces forms a first angle with each of the setting surfaces, Each of the action surfaces forms a second angle with each of the setting surfaces; each of the absorption layers is provided on the surface of each of the absorption surfaces; each of the absorption surface anti-scratch layer is provided on the surface of each of the absorption layers and covers each of the absorption layers Each anti-scratch layer of the active surface is disposed on a surface of each of the active surfaces.

A first included angle formed by each of the absorbing surfaces and each of the setting surfaces causes each of the absorption layers disposed on each of the absorbing surfaces to absorb ambient light sources, and a second included angle formed by each of the active surfaces and each of the setting surfaces makes the projector light After leaving each of the micro-units, the light is directed toward the viewer, so that the proportion of ambient light in the light received by the viewer is reduced, and the proportion of light from the projector is increased, thereby achieving the purpose of improving image contrast and color vividness. Further, each of the absorbing surface anti-scratch layer and each of the active surface anti-scratch layer covers each of the absorbing layer and each of the operative surface, and provides a scratch-resistant protection of each of the absorbing surface and each of the active surface to avoid the anti-scratch. The purpose of the projection screen being damaged by the force of a foreign object.

Please refer to FIG. 1, the new scratch-resistant projection screen includes a base layer 10 and a micro-array structure 20; wherein the base layer 10 has a first surface 101 and a second surface 102 opposite to each other. The micro chirped array structure 20 is disposed on the first surface 101 of the base layer 10 and includes a plurality of micro chirped cells 200, each of which has a setting surface 201, an absorption surface 202, and a function. The surface 203, an absorbing layer 21, an absorbing surface anti-scratch layer 22, and an active surface anti-scratch layer 23, and each micro-pull unit 200 is disposed on the first surface 101 with the setting surface 201. Wherein, the absorbing surface 202 and the setting surface 201 of each micro-pull unit 200 form a first angle, and the active surface 203 and the setting surface 201 form a second angle.

Each of the absorbing layers 21 is disposed on the absorbing surface 202 of each micro-capsule unit 200, and each of the absorbing surface anti-scratch layers 22 is provided on the surface of each of the absorbing layers 21 and covers each of the absorbing layers 21; The surface anti-scratch layer 23 is disposed on a surface of each of the active surfaces 203 and covers each of the active surfaces 203.

In the first preferred example of the present invention, each of the absorption layers 21 is a light absorption layer, and a first angle formed by each of the absorption surface 202 and each of the setting surfaces 201 allows each of the absorption layers 21 to absorb ambient light sources. The ambient light source may be an indoor lighting source, or sunlight from an outdoor environment. A second angle formed by each of the action surfaces 203 and each of the setting surfaces 201 allows the light of the projector to enter the eyes of the viewer after leaving the micro-units 200. Since each of the absorption layers 21 absorbs a high proportion of ambient light sources, and each of the action surfaces 203 allows the light of the projector to enter the eyes of a viewer, the purpose of improving the contrast, sharpness, and sharpness of the image of the projector is achieved.

Each of the absorbing surface anti-scratch layer 22 and each of the active surface anti-scratch layer 23 are transparent anti-scratch resin layers, which have a high degree of hardness and low friction. When a foreign object is touched, a protective layer is provided to prevent Each of the absorption layers 21 and each of the active surfaces 203 are damaged by the foreign object.

Please refer to FIG. 2. In the second preferred embodiment of the present invention, a reflective layer 24 is provided on the surface of the active surface 203 of each micro-capsule unit 200, and each active surface anti-scratch layer 23 is provided on each A surface of the reflective layer 24 covers each of the reflective layers 24. The reflective layer 24 can be a white ink reflective layer, a pearl ink reflective layer, a silver ink reflective layer, or a high-reflectivity paint reflective layer.

The reflective layer 24 of the preferred embodiment is used to reflect the projection light of a projector, which may be an ultra-short focus projector. The second included angle formed by each of the action surfaces 203 and each of the setting surfaces 201 causes each of the reflective layers 24 to reflect the light from the projector to the direction in which the viewer is located for the viewer to receive. Each of the absorbing layers 21 absorbs the ambient light source, and the reflected light incident on each of the reflecting layers 24 from a direction other than the direction where the projector is located. Each of the active-surface anti-scratch layers 23 covers each of the reflective layers 24 to provide a scratch-resistant protection for each of the reflective layers 24 to prevent each of the reflective layers 24 from being scratched or damaged by a foreign object.

Each of the absorbing layers 21 absorbs other ambient light sources other than the light projected by the projector, and the ambient light sources reflected by each of the reflective layers 24, so that the viewer receives a high proportion of the projector light, thereby improving the projector imaging The purpose of contrast and color vividness.

Please refer to FIG. 3. In a third preferred embodiment of the present invention, the scratch-resistant projection screen includes a front-projection reflective layer 30. The front-projection reflective layer 30 is disposed on the first surface 101 of the base layer 10. The mounting surface 201 of the micro chirp unit 200 is disposed on a surface of the front projection reflective layer 30. The front projection reflection layer 30 includes a plurality of beads 301 and an adhesive layer 302. Each of the beads 301 is disposed in the adhesive layer 302, and each of the beads 301 is fixed in position by the adhesive layer 302. The glue layer 302 is a transparent glue layer, each of the beads 301 is a transparent ball, and the base layer 10 is an opaque base layer.

Each of the beads 301 in this preferred embodiment is used to reflect the projection light of a projector, and the projector may be a front projection projector. The light from the projector enters the micro-chuck structure array 20 from each of the active surfaces 203, then enters the glue layer 302, and enters each of the beads 301. After a reflection, it leaves in the direction of the micro-chuck structure array 20. Each of the beads 301 sequentially enters the glue and layer 302 and each of the microcapsule structures 200, and then each of the active surfaces 203 leaves the microcapsule structure array 20 for reception by a viewer.

Since each of the beads 301 completely reflects the projection light of the projector for viewers to receive, and each of the absorbing layers 21 absorbs most of the ambient light sources, and light from directions other than the direction in which the projector is set passes through the beads. 301 reflects other light, so the purpose of improving image contrast and color vividness is achieved. Furthermore, since the base layer 10 is an opaque base layer, the base layer 10 also absorbs ambient light and prevents the ambient light from entering the viewer's eyes. Therefore, the contrast and the projection image provided to the viewer are further improved. Vivid color.

Please refer to FIG. 4. In a fourth preferred embodiment of the present invention, the scratch-resistant projection screen includes a diffusion layer 40 disposed on the second surface 102 of the base layer 10. The diffusion layer 40 is a light-transmissive diffusion layer, and the base layer 10 is a light-transmissive base layer.

In the preferred embodiment, the diffusion layer 40 is applied to a rear projection type projection system. The projection light of the rear-projection projector enters the diffusion layer 40 from the second surface 102 side of the base layer 10, and the diffusion layer 40 makes the projection light diffuse evenly, so as to avoid the light being concentrated in the center of the image and causing the viewer to be uneasy. Comfortable. The diffusion layer 40 allows the projected light to enter the base layer 10 from the second surface 102 of the base layer 10, and then enter the micro chirp units 200, and leave the micro chirp units 200 from the active surfaces 203. For viewers to receive. Each of the absorption layers 21 absorbs the ambient light source, and after the light of the projector is diffused through the diffusion layer 40 and passed through the micro-macrostructure array 20, a clear and soft projector image is provided to the viewer.

In order to test the anti-scratch protection effect of the new-type anti-scratch layer 22 and the active-surface anti-scratch layer 23. The following two detection methods are adopted to know its anti-scratch effect.

In the first test, referring to the CNS10757 hardness test specification, a pencil hardness test method was selected. A self-propelled pencil hardness tester (3086T) and a Mitsubishi (UNI) test pencil are used. In this test, the control is changed because the self-propelled pencil hardness machine controls the load that the test pencil applies to the new scratch-resistant projection screen with a load of 10 Newtons; the manipulation changes because of the hardness of the test pencil and the test pencil is in the new The direction of movement on the scratch-resistant projection screen.

Please refer to FIGS. 5 and 6. In the first detection, the angle formed by each of the absorbing surface 202 and the setting surface 201 and the angle formed by each of the active surface 203 and the setting surface 201 are different. Five different test pencil moving directions from the first direction A to the fifth direction E to detect the anti-scratching ability of the anti-scratch projection screen when a foreign object moves on its surface under different directions of force. Wherein, the third direction C is the direction in which the test pencil is placed on each of the absorbing surface 202 and each of the active surfaces 203 to form a groove, and the groove moves along the groove; the fourth direction D and the first A direction A forms an angle of 45 °, and the fifth direction E and the second direction B and the fifth direction E form an angle of 45 °.

In this test, test pencils with hardnesses of HB, H, 2H, 3H, 4H, 5H, and 6H were selected, and the scratch-resistant projection screens were moved in five different directions from the first direction A to the fifth direction E, respectively. The surface moves. Among them, the hardness of the HB test pencil is the lowest, and the hardness gradually increases, and the hardness of the 6H test pencil is the highest.

Please refer to Table 1. Table 1 is the test results of this test. From this table, it can be known that the scratch-resistant projection screen is damaged only when using 5H and 6H test pencils with high hardness and moving in the first direction A. In the case of all other hardness pencils and other moving directions, the new scratch-resistant projection screen is maintained in an unscratched state. It can be known from this detection method that each of the absorbing surface anti-scratch layer 22 and each of the active surface anti-scratch layer 23 of the novel anti-scratch projection screen can protect the absorption of the micro-chirped structure array 20 under normal normal use conditions. Surface 202 and active surface 203 are not scratched or damaged by general foreign objects, and have the effect of resisting scratching.         <TABLE border = "1" borderColor = "# 000000" width = "85%"> <TBODY> <tr> <td> </ td> <td> Pencil hardness </ td> </ tr> <tr> < td> test direction </ td> <td> HB </ td> <td> H </ td> <td> 2H </ td> <td> 3H </ td> <td> 4H </ td> <td > 5H </ td> <td> 6H </ td> </ tr> <tr> <td> First direction A </ td> <td> Not damaged </ td> <td> Not damaged </ td> td> <td> not damaged </ td> <td> not damaged </ td> <td> not damaged </ td> <td> damaged </ td> <td> damaged </ td> </ tr> <tr> <td> Second direction B </ td> <td> Undamaged </ td> <td> Undamaged </ td> <td> Undamaged </ td> <td > Unspoiled </ td> <td> Unspoiled </ td> <td> Unspoiled </ td> <td> Unspoiled </ td> </ tr> <tr> <td> Third Direction C </ td> <td> Not damaged </ td> <td> Not damaged </ td> <td> Not damaged </ td> <td> Not damaged </ td> <td> Not damaged Damaged </ td> <td> not damaged </ td> <td> not damaged </ td> </ tr> <tr> <td> fourth direction D </ td> <td> not damaged </ td> <td> Not damaged </ td> <td> Not damaged </ td> <td> Not damaged </ td> <td> Not damaged </ td> <td> Not damaged </ td> <td> Undamaged </ td> </ tr> <tr> <td> Fifth direction E </ td> <td> Undamaged </ td> <td> Undamaged </ td> td> <td> not damaged </ td> <td> Undamaged </ td> <td> undamaged </ td> <td> undamaged </ td> <td> undamaged </ td> </ tr> </ TBODY> </ TABLE> 1       

In this test, the anti-scratch effect of the projection screen without the absorbing surface anti-scratch layer 22 and the active surface anti-scratch layer 23 and the new type of anti-scratch projection screen is further compared. The hardnesses of 2H, 3H, and 4H are selected. The test pencil was moved along the first direction A on the projection screen without the absorbing surface anti-scratch layer 22 and the active surface anti-scratch layer 23. The test results are shown in Table 2. It can be known from Table 2 that in the pencil test that the new scratch-resistant projection screen was not damaged, the projection screen of the projection screen without the anti-scratch layer was damaged. Obviously, the resistance of the new scratch-resistant projection screen was Better scraping ability.         <TABLE border = "1" borderColor = "# 000000" width = "85%"> <TBODY> <tr> <td> Test pencil hardness </ td> <td> Projection screen without anti-scratch layer </ td > <td> Anti-scratch projection screen </ td> </ tr> <tr> <td> 2H </ td> <td> Damaged </ td> <td> Undamaged </ td> </ tr> <tr> <td> 3H </ td> <td> Damaged </ td> <td> Undamaged </ td> </ tr> <tr> <td> 4H </ td> <td> Damaged </ td> <td> Intact </ td> </ tr> </ TBODY> </ TABLE> Table 2       

Please refer to FIG. 7. In the second test, in order to test the abrasion resistance effect of the new scratch-resistant projection screen, an abrasion tester is selected. In this test, the control changes because of the load applied by the abrasion tester to the scratch-resistant projection screen, and the period during which the abrasion tester moves back and forth on the scratch-resistant projection screen, the load is 120 grams, and The period is 2 seconds. The operation of this detection is caused by the number of round trips of the abrasion tester on the scratch-resistant projection screen, and whether the projection screen is provided with each of the absorbing surface anti-scratch layer 22 and the active surface anti-scratch layer 23. In this test, the tests were performed 10 times, 50 times, 100 times, and 250 times.

Table 3 is the test results of this test. The projection screen without the anti-scratch layer 22 and the active-surface anti-scratch layer 23 can not bear the wear of the abrasion tester. The number of round trips in the abrasion tester At the lowest 10 times, the projection screen has been damaged. The new scratch-resistant projection screen has not been damaged in the abrasion tester's 10 round trips, 50 rounds, and 100 round trip tests, and has been damaged only in the round trip rounds of 250 round trip tests. It can be known from this detection method that the novel anti-scratch projection screen has a significantly better abrasion resistance than a projection screen without an absorbing surface anti-scratch layer 22 and an active surface anti-scratch layer 23, and is generally used in normal use. Under the circumstances, it will not be abraded by normal foreign objects in contact with force, to achieve the purpose of scratch resistance and wear resistance.         <TABLE border = "1" borderColor = "# 000000" width = "85%"> <TBODY> <tr> <td> Number of round trips </ td> <td> Projection screen without anti-scratch layer </ td> <td> Anti-scratch projection screen </ td> </ tr> <tr> <td> 10 times </ td> <td> Damaged </ td> <td> Undamaged </ td> </ tr> <tr> <td> 50 times </ td> <td> Damaged </ td> <td> Undamaged </ td> </ tr> <tr> <td> 100 times </ td> <td> Damaged </ td> <td> Undamaged </ td> </ tr> <tr> <td> 250 times </ td> <td> Damaged </ td> <td> Damaged </ td> </ tr> </ TBODY> </ TABLE> Table 3       

The above descriptions are only the preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed above with the preferred embodiments, it is not intended to limit the present invention. Any technology familiar with the profession Personnel, without departing from the scope of the new technical solution, can use the disclosed technical content to make a few changes or modify the equivalent embodiment of equivalent changes, but as long as it does not depart from the content of the new technical solution, according to the new technical solution Any simple modifications, equivalent changes, and modifications made to the above embodiments by the technical essence of the invention still fall within the scope of the new technical solution.

10‧‧‧ basal layer
101‧‧‧first surface
102‧‧‧Second surface
20‧‧‧ Micro- 稜鏡 Structure Array
200‧‧‧ micro-unit
201‧‧‧ Setting surface
202‧‧‧ Absorbing surface
203‧‧‧active surface
21‧‧‧ Absorptive layer
22‧‧‧ Absorbing surface anti-scratch layer
23‧‧‧ Anti-scratch layer on active surface
24‧‧‧Reflective layer
30‧‧‧ front projection reflector
301‧‧‧ round beads
302‧‧‧Glue and layer
40‧‧‧ diffusion layer

FIG. 1 is a schematic cross-sectional view of a first embodiment of the new scratch-resistant projection screen. FIG. 2 is a schematic cross-sectional view of a second preferred embodiment of the new scratch-resistant projection screen. FIG. 3 is a schematic cross-sectional view of a third preferred embodiment of the novel anti-scratch projection screen. FIG. 4 is a schematic cross-sectional view of a fourth preferred embodiment of the novel anti-scratch projection screen. FIG. 5 is a schematic diagram of the first detection of the scratch-resistant effect of the new scratch-resistant projection screen. FIG. 6 is another implementation diagram of the first detection of the anti-scratch effect of the novel anti-scratch projection screen. FIG. 7 is a schematic diagram of the second detection of the scratch-resistant effect of the new scratch-resistant projection screen.

Claims (10)

A scratch-resistant projection screen includes: a base layer having a first surface and a second surface opposite to each other; and a micro chirped array structure including a plurality of micro chirped units, each of the micro chirped units being respectively It has: a setting surface, which is set on the first surface of the base layer; an absorption surface, which forms a first angle with the setting surface; an active surface, which forms a second angle with the setting surface; an absorption layer An anti-scratch layer is arranged on the surface of the absorbing layer and covers the absorbing layer; An anti-scratch layer is arranged on the surface of the active surface. The anti-scratch projection screen according to claim 1, wherein: a reflective layer is provided on the surface of the active surface of each micro-unit; wherein: the active-surface anti-scratch layer is provided on the surface of the reflective layer, and the effect An anti-scratch layer covers the reflective layer. The anti-scratch projection screen according to claim 2, wherein each of the reflective layers is a white ink reflective layer, a pearl ink reflective layer, a silver ink reflective layer, or a high-reflectivity paint reflective layer. The anti-scratch projection screen according to claim 1, further comprising: a front-projection reflective layer disposed on the first surface of the base layer, and a setting surface of the micro chirped array is disposed on one of the front-projection reflective layers. On the surface. The anti-scratch projection screen according to claim 4, wherein the front-projection reflective layer comprises: a plurality of beads; a glue and a layer; wherein: each of the beads is disposed in the glue layer, and each of the beads is transmitted through the Glue and layer fixed position. The scratch-resistant projection screen according to claim 1, further comprising: a diffusion layer disposed on the second surface of the base layer. The anti-scratch projection screen according to claim 1, wherein: the absorbing surface anti-scratch layer and the active surface anti-scratch layer are respectively a transparent anti-scratch resin layer. The scratch-resistant projection screen according to claim 6, wherein: the base layer is a light-transmissive base layer. The scratch-resistant projection screen according to claim 5, wherein: the base layer is an opaque base layer. The scratch-resistant projection screen according to claim 5, wherein: each of the beads is a transparent bead; the glue and the layer are a transparent glue and a layer.