TWI726686B - Transflective mirror - Google Patents

Abstract

A transflective mirror is disclosed. The transflective mirror includes an absorption layer, a reflection control mirror, a switching unit and a polarizer. The reflection control mirror is disposed on the absorption layer. The switching unit is disposed on the reflection control mirror. The polarizer is disposed on the switching unit. Based on the switching unit, the transflective mirror is switched between a reflection state and a penetration state. The transflective mirror may be a single mirror in the reflection state and a surface of the absorption layer is shown in the penetration state.

Description

Semi-transmissive mirror

The present invention relates to a semi-transmissive mirror, in particular to a semi-transmissive mirror that is switched between a reflective state and a transmissive state by controlling the turning of the liquid crystal by a switching unit.

In order to improve the reflectivity of the mirror surface, the existing adjustable mirror surface uses a metal material as the reflective surface at the bottom. However, if the polarizer is not passed, the reflectivity will reach 50% to 90%, and the lowest reflectivity will be as high as 50%. %, it is relatively difficult to present a perspective pattern in the penetrating effect. If a metal material is added to the back of the polarizer, its reflectivity will only be 5.6% to 35%. Under such a structure, the reflectivity can only reach 35%, which is difficult to achieve the desired effect when used as a reflector.

In summary, the conventional technology is still difficult to achieve a balance between reflectivity and transmittance. Therefore, the present invention solves the problems of the prior art by designing a semi-transmissive mirror to address the shortcomings of the prior art. Further enhance the implementation and utilization in industry.

In view of the above-mentioned problems of the conventional technology, the purpose of the present invention is to provide a semi-transmissive mirror, which can switch the reflection state and the transmission state through a switching unit, and solves the problem of the reflectivity and penetration of the semi-transreflective mirror between different states. The rate cannot be balanced.

According to the above objective, an embodiment of the present invention provides a semi-transmissive mirror, which includes an absorption layer, a reflection control mirror, a switching unit, and a polarizer. Wherein, the reflection control mirror surface is arranged on the absorption layer, the switching unit is arranged on the reflection control mirror surface, and the polarizer is arranged on the switching unit.

In the embodiment of the present invention, the absorption layer and the reflection control mirror surface can be fully attached.

In an embodiment of the present invention, the reflection control mirror may include a reflective polarization mirror (RPM) or a wire grid polarizer (WGP).

In the embodiment of the present invention, the reflectivity of the surface of the absorbing layer can be 2.5 to 3.5 times the reflectivity of the surrounding surface next to the semi-transmissive mirror, and the surrounding surface and the surface can have the same pattern. The absorbent layer may include wood material, paper material or cloth material.

In the embodiment of the present invention, when the semi-transmissive mirror is in the penetrating state, the transmittance of the semi-transmissive mirror can be greater than 60%, and the reflectivity of the semi-transmissive mirror is about 10%.

In the embodiment of the present invention, the highest reflectance of the semi-transmissive mirror can be 2-10 times the lowest reflectance.

In the embodiment of the present invention, when the semi-transmissive mirror is in the reflective state, the reflectance of the semi-transparent mirror can be greater than 40%, and the transmittance of the semi-transmissive mirror is about 10%.

In summary, according to the semi-transmissive mirror disclosed in the embodiment of the present invention, in the penetrating state, the transmissive rate of the semi-transmissive mirror is greater than 60%, which can present the surface of the absorbing layer through the see-through effect, so that The semi-transmissive mirror presents a harmonious tone or pattern with the surrounding environment. In the reflective state, the reflectivity of the semi-transmissive mirror is greater than 40%, so that the semi-transmissive mirror can be used as a single mirror. Through the switching unit, the semi-transmissive mirror can have different functions at the same time. In addition, by changing the absorption layer, the reflectivity of the semi-transmissive mirror can be adjusted to produce different effects for different materials, increasing the diversity and practicality of use.

10, 20, 40, 50: semi-transmissive mirror

11, 41, 51: absorption layer

12, 42, 52: reflection control mirror

13, 43, 53: switching unit

14,44,54: Polarizer

21: Surface

30: door panel

31: Surrounding surface

90: light

431, 531: Glass substrate

432,532: Liquid crystal layer

433,533: Orientation layer

434,534: Transparent electrode layer

435,535: protective layer

436,536: Metal electrode layer

437,537: Metal layer

438,538: Black matrix layer

In order to make the technical features, content and advantages of the present invention and the effects that can be achieved more obvious, the present invention is combined with the accompanying drawings and described in detail in the form of embodiments as follows: Figure 1 is an embodiment of the present invention Schematic diagram of a semi-transmissive mirror.

Figure 2 is a schematic diagram of the penetration state of the semi-transmissive mirror according to the embodiment of the present invention.

Figure 3 is a schematic diagram of a switching unit according to an embodiment of the present invention.

Figure 4 is a schematic diagram of a switching unit according to another embodiment of the present invention.

In order to understand the technical features, content and advantages of the present invention as well as the effects that can be achieved, the present invention is described in detail with the accompanying drawings and in the form of embodiment expressions as follows, and the figures used therein are only For the purpose of illustration and supplementary description, it is not necessarily the true scale and precise configuration after the implementation of the invention. Therefore, the scale and configuration relationship of the attached drawings should not be interpreted, and the scope of rights of the invention in actual implementation should not be interpreted. Narrate.

In the drawings, the thickness or width of layers, films, panels, regions, light guides, etc. are exaggerated for the sake of clarity. Throughout the specification, the same reference numerals denote the same elements. It should be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or Intermediate elements can also be present. Conversely, when an element is referred to as being "directly on" or "directly connected to" another element, there are no intervening elements. As used herein, "connection" can refer to a physical and/or electrical connection. Furthermore, "electrical connection" or "coupling" can mean that there are other elements between the two elements. In addition, it should be understood that although the terms "first", "second", and "third" may be used herein to describe each Such elements, components, regions, layers, and/or sections are used to distinguish one element, component, region, layer, and/or section from another element, component, region, layer, and/or section. Therefore, it is only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or its sequence relationship.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have meanings commonly understood by ordinary knowledge in the technical field to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present invention, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

Please refer to FIG. 1, which is a schematic diagram of a semi-transmissive mirror according to an embodiment of the present invention. As shown in the figure, the semi-transmissive mirror 10 includes an absorption layer 11, a reflection control mirror 12, a switching unit 13 and a polarizer 14. The reflection control mirror 12 is arranged on the absorption layer 11, the switching unit 13 is arranged on the reflection control mirror 12, and the polarizer 14 is arranged on the switching unit 13. In practical applications, the polarizer 14 is the viewing surface facing the user, and the absorption layer 11 is set on a preset installation plane, such as a wardrobe, furniture, wall, or other surfaces that require a mirror surface. When the incident light 90 enters through the polarizer 14, it is converted into polarized light with a specific polarization direction through the polarizer 14, and then the liquid crystal in the switching unit 13 is turned to control whether the light 90 can penetrate the reflection control mirror 12. The reflection control mirror 12 can be a reflective polarization mirror (RPM) or a wire grid polarizer (WGP). Because the reflection control mirror 12 has a very high reflectivity for visible light in the reflection axis, it can be close to 100 %, when the semi-transmissive mirror 10 is in the reflective state, for example, when the switching unit 13 is closed, the reflectance of the semi-transmissive mirror 10 can be greater than 40%. In other words, the highest reflectance of the semi-transmissive mirror 10 can be greater than 40% , The transmittance is about 10%, which is only about 35% of the highest reflectance when using a metal material as the reflecting surface. The present disclosure can effectively improve the highest reflectance of the semi-transmissive mirror 10.

On the other hand, when the semi-transmissive mirror 10 is in the penetrating state, for example, when the switching unit 13 is turned on, its reflectivity can be between 4-40%. In other words, the lowest reflectance of the semi-transmissive mirror 10 can be Between 4 and 40%, the reflectivity is determined by the absorption layer 11 behind the reflection control mirror 12. In this embodiment, the highest reflectivity is 2-10 times the lowest reflectivity. The absorption layer 11 and the reflection control mirror 12 are preferably fully bonded, which can prevent optical problems such as light leakage or refraction between the reflection control mirror 12 and the absorption layer 11, that is, the reflection control mirror 12 and the absorption layer There is no air gap between 11, but it is not limited to this, and the absorption layer 11 and the reflection control mirror 12 may not be fully bonded. In the above-mentioned reflection state, the semi-transmissive mirror 10 can be used as a single mirror and has the expected reflectivity.

When the switching unit 13 is switched on and turned on, the semi-transmissive mirror 10 is also switched from the reflective state to the transmissive state, and the liquid crystal in the switching unit 13 is deflected so that the light 90 can penetrate the reflection control mirror 12, and then the semi-transmissive mirror The penetration rate of the mirror 10 is, for example, greater than 60%, and the reflectivity is about 10%, so that the user can see the absorption layer 11 after penetrating the reflection control mirror 12 from the observation surface. For example, when the absorption layer 11 is made of wood material, the semi-transmissive mirror 10 can exhibit a wood grain surface in the penetrating state. Similarly, if the absorbing layer 11 is made of cloth material, the semi-transmissive mirror 10 can present the textured surface of the cloth in the penetrating state. In addition, when the switching unit 13 is turned on, the semi-transmissive mirror 10 is in a transmissive state, and when the switching unit 13 is turned off, the semi-transmissive mirror 10 is in a reflective state. When the switching unit 13 is turned on, the semi-transmissive mirror 10 is in a reflective state, and when the switching unit 13 is turned off, the semi-transmissive mirror 10 is in a penetrating state.

Please refer to FIG. 2, which is a schematic diagram of the penetrating state of the semi-transmissive mirror according to the embodiment of the present invention. As described in the foregoing embodiment, the semi-transmissive mirror 20 can be installed on a wardrobe or furniture, and can be used as a single mirror in the reflective state, and when switched to the penetrating state, it can present a harmonious color tone with the surroundings of the installation device. As shown in the figure, the semi-transmissive mirror 20 is installed on the door panel 30 of the cabinet door or sliding door of the closet. The door panel 30 can be a wooden material. When the semi-transmissive mirror 20 is installed on it, the semi-transmissive mirror The surrounding surface 31 of 20 may be wood grain surface. At this time, the absorbing layer can be made of the same material as the surrounding surface 31, so that the surface 21 of the absorbing layer can have the same pattern as the surrounding surface 31, and then present a style and color coordinated with the surrounding surface 31.

In addition, the reflectivity of the surface 21 of the absorbing layer is preferably 2.5 to 3.5 times the reflectivity of the surrounding surface 31, because the absorbing layer placed under the semi-transmissive mirror 20 will reduce the reflectivity of the original material. The present surface 21 is coordinated with the surrounding surface 31, and the surface 21 of the absorbing layer must be further subjected to surface treatment to increase its reflectivity in order to achieve the effect of coordinating with the surrounding surface 31. For example, when the door panel 30 is made of wood material, the original wooden board has a surface reflectivity of 31%. When the same material is placed under the semi-transmissive mirror 20 as an absorbing layer, the reflectivity is 12%. The ratio is about 2.6 times. When a wood board is used as the absorbing layer, the surface 21 must undergo surface treatment to achieve a reflectivity of 2.6 times that of the original, so that the surface 21 and the surrounding surface 31 can present a coordinated effect.

In another embodiment, if the surrounding surface 31 is a paper material, such as a dark goose yellow paper, the original surface reflectance is 74%. When the same paper material is placed under the semi-transmissive mirror 20 as the absorption layer , Its reflectivity is 24%, and the ratio between the two is about 3.1 times. When a paper material is used as the absorbing layer, the surface 21 must undergo surface treatment to make the reflectance reach 3.1 times the original, so that the surface 21 and the surrounding surface 31 can present a coordinated effect.

In yet another embodiment, if the surrounding surface 31 is a cloth material, such as a white cloth, the original surface reflectance is 79%. When the same cloth material is placed under the semi-transmissive mirror 20 as an absorbing layer, Its reflectivity is 25%, and the ratio between the two is about 3.2 times. When a cloth material is used as the absorbing layer, the surface 21 must undergo surface treatment to achieve a reflectivity of 3.2 times the original so that the surface 21 and the surrounding surface 31 can present a coordinated effect. The above-mentioned materials are only to illustrate the difference in reflectivity between different materials, and the absorbing layer of the present disclosure is not limited to the above-mentioned materials, and the multiples of the surface reflectivity and the surrounding surface reflectivity also vary due to different materials.

Please refer to FIG. 3, which is a schematic diagram of the switching unit according to the embodiment of the present invention. As shown in the figure, the semi-transmissive mirror 40 includes an absorption layer 41, a reflection control mirror 42, a switching unit 43 and a polarizer 44. Among them, the reflection control mirror 42 is disposed on the absorption layer 41, the switching unit 43 is disposed on the reflection control mirror 42, and the polarizer 44 is disposed on the switching unit 43. The parts of the absorption layer 41, the reflection control mirror 42 and the polarizer 44 that are the same as those in the previous embodiment will not be described again. This embodiment is mainly described with the structure of the switching unit 43.

The two ends of the switching unit 43 are glass substrates 431 respectively, which are respectively arranged on the reflection control mirror 42 and the polarizing film 44. The switching unit 43 includes a liquid crystal layer 432, and the upper and lower sides of the switching unit 43 are covered with the liquid crystal layer 433 in the liquid crystal layer 432. The direction of the liquid crystal molecules is changed by applying voltage. On the upper alignment layer 433, a transparent electrode layer 434, a protective layer 435, and a metal electrode layer 436 are sequentially disposed. The metal electrode layer 436 is disposed on the glass substrate 431. The transparent electrode layer 434 may be indium tin oxide (Indium tin oxide, ITO) or indium zinc oxide (IZO). The lower alignment layer 433 is provided with a metal layer 437, a transparent electrode layer 434, and a black matrix layer 438 in sequence, and the black matrix layer 438 is provided on the glass substrate 431.

In this embodiment, the switching unit 43 can switch the semi-transmissive mirror 40 between the reflective state and the penetrating state, with fast response speed and low power consumption, and at the same time, it can achieve a reflectivity of more than 40% in the reflective state. , The penetration rate can reach more than 60% in the penetrating state, so that the semi-transmissive mirror 40 can present a good effect no matter when it is used as a mirror surface or when presenting a surrounding surface pattern.

Please refer to FIG. 4, which is a schematic diagram of a switching unit according to another embodiment of the present invention. As shown in the figure, the semi-transmissive mirror 50 includes an absorption layer 51, a reflection control mirror 52, a switching unit 53 and a polarizer 54. Among them, the reflection control mirror 52 is disposed on the absorption layer 51, the switching unit 53 is disposed on the reflection control mirror 52, and the polarizer 54 is disposed on the switching unit 53. Absorption layer 51, reflection control mirror 52 And the parts of the polarizer 54 that are the same as those in the previous embodiment will not be described again. This embodiment is mainly described with the structure of another switching unit 53.

The two ends of the switching unit 53 are glass substrates 531, which are respectively arranged on the reflection control mirror 52 and the polarizer 54. The switching unit 53 includes a liquid crystal layer 532, and an alignment layer 533 covers the liquid crystal in the liquid crystal layer 532. The direction of the liquid crystal molecules is changed by applying voltage. The difference from the previous embodiment is that a transparent electrode layer 534, a protective layer 535, and a metal electrode layer 536 are sequentially arranged on the alignment layer 533 below. The metal electrode layer 536 is arranged on the glass substrate 531. The transparent electrode layer 534 can be Indium tin oxide (ITO) or indium zinc oxide (IZO). On the upper alignment layer 533, a metal layer 537, a transparent electrode layer 534, and a black matrix layer 538 are sequentially disposed, and the black matrix layer 538 is disposed on the glass substrate 531.

In this embodiment, the switching unit 53 can switch the semi-transmissive mirror 50 between the reflective state and the penetrating state, with fast response speed and low power consumption, and at the same time, it can achieve a reflectivity of more than 40% in the reflective state. , The penetration rate can reach more than 60% in the penetrating state, so that the semi-transmissive mirror 50 can present a good effect no matter when it is used as a mirror surface or when presenting a surrounding surface pattern.

The above description is only illustrative, and not restrictive. Any equivalent modifications or alterations that do not depart from the spirit and scope of the present invention should be included in the scope of the appended patent application.

10: Semi-through mirror

11: Absorption layer

12: Reflection control mirror

13: Switching unit

14: Polarizer

90: light

Claims (9)

A semi-transmissive mirror, comprising: an absorption layer; a reflection control mirror surface arranged on the absorption layer; a switching unit arranged on the reflection control mirror surface; and a polarizer arranged on the switching unit; The reflectance of a surface of the absorption layer is 2.5 to 3.5 times the reflectance of a surrounding surface next to the semi-transmissive mirror. The semi-transmissive mirror as described in item 1 of the scope of patent application, wherein the absorption layer is fully attached to the reflection control mirror surface. The semi-transmissive mirror as described in item 1 of the scope of patent application, wherein the reflection control mirror includes a reflective polarizer (RPM) or a wire grid polarizer (WGP). The semi-transmissive mirror as described in item 1 of the scope of patent application, wherein the surrounding surface and the surface have the same pattern. The semi-transmissive mirror described in the first item of the scope of patent application, wherein the absorption layer comprises a wooden material, a paper material or a cloth material. The semi-transmissive mirror described in item 1 of the scope of patent application, wherein when the semi-transmissive mirror is in the penetrating state, the transmissive rate of the semi-transparent mirror is greater than 60%, and the semi-transmissive mirror is The reflectivity is about 10%. For the semi-transmissive mirror described in item 1 of the scope of patent application, the highest reflectance of the semi-transmissive mirror is 2-10 times the lowest reflectance. The semi-transmissive mirror as described in item 1 of the scope of patent application, wherein the semi-transverse type When the mirror is in the reflective state, the reflectivity of the semi-transmissive mirror is greater than 40%, and the transmittance of the semi-transmissive mirror is about 10%. The semi-transmissive mirror as described in the first item of the scope of patent application, wherein the switching unit includes a liquid crystal layer and two alignment layers, and the liquid crystal layer is located between the two alignment layers.

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