JP3242400U - Electrochromic electronics protective case - Google Patents

Abstract

The present invention relates to the technical field of color changing devices, in which an electrochromic device is positioned outside and a glare film is positioned inside the electrochromic device, or an electrochromic device is positioned in the middle and two layers of glare films are electrochromic devices respectively. Disclosed is an electrochromic electronic device protective case that is located on both sides of a chromic device and can be superimposed with the color and texture of the glare film to show different visual effects when the electrochromic device is in different states.

Description

TECHNICAL FIELD The present invention relates to the technical field of color changing devices, and more particularly to electrochromic electronic equipment protective cases.

With the development of society, people's pursuit of beauty is increasing more and more. In the field of consumer electronic products, generational changes of mobile phone protective cases are appearing one after another.

In the prior art, mobile phone cases have two discoloration methods. The first color change function is realized by particulate materials such as noctilucent color change, thermochromic color change, and photosensitive color change. The color change effect is not enough, and the market acceptance is low. can't

In order to solve the above technical problems, the present invention provides an electrochromic electronic device protective case.

In order to solve the above technical problems, the present invention adopts the following technical solutions.

a case and a composite color changing device attached to the case, the composite color changing device comprising an outer electrochromic device, a second inner glare film, and bonding the second glare film and the electrochromic device. and a first transparent optical adhesive for electrochromic electronics.

The electrochromic device further comprises an innermost common thin film substrate,
The second glare film is attached directly to the side of the common thin film substrate away from the electrochromic device, in which case the electrochromic device and the second glare film share the substrate so that the total thickness of the device is can be reduced.

Further, the composite color changing device comprises an outer electrochromic device, an inner second glare film, and a water and oxygen barrier film between the electrochromic device and the second glare film; A first transparent optical adhesive between the electrochromic device and the water/oxygen barrier film and a second transparent optical adhesive between the water/oxygen barrier film and the second glare film. By adding a water-oxygen barrier film, the water-oxygen erosion can be delayed to some extent, effectively extending the life of the electrochromic device.

Further, the composite color changing device is an outer first glare film, an inner second glare film, and an electrochromic device positioned between the first glare film and the second glare film. a first transparent optical adhesive between the first glare film and the electrochromic device; and a second transparent optical adhesive between the second glare film and the electrochromic device. has been replaced by a structure containing

Further, the composite color changing device is an outer first glare film, an inner second glare film, and an electrochromic device positioned between the first glare film and the second glare film. and a second transparent optical adhesive disposed between a second glare film and an electrochromic device, wherein an external common thin film substrate is disposed on the outermost side of said electrochromic device. wherein said first glare film is provided on the outside of an external common thin film substrate, in which case the first glare film and the outside of the electrochromic device share a substrate, thus reducing the thickness of the device. Make smaller.

Further, the composite color changing device is an outer first glare film, an inner second glare film, and an electrochromic device positioned between the first glare film and the second glare film. and a first transparent optical adhesive provided between a first glare film and an electrochromic device, wherein an inner common thin film substrate is provided on the innermost side of said electrochromic device. wherein said second glare film is provided inside an internal common thin film substrate, in which case the second glare film and the inside of the electrochromic device share a substrate, thus reducing the thickness of the device. Make smaller.

Further, the composite color changing device is an outer first glare film, an inner second glare film, and an electrochromic device positioned between the first glare film and the second glare film. and an outer common thin film substrate is provided on the outermost side of the electrochromic device, and an inner common thin film substrate is provided on the innermost side of the electrochromic device, and the first glare film is provided outside the outer common thin film substrate and said second glare film is provided inside the inner common thin film substrate, where the first glare film and the electrochromic device outside the substrate Since the second glare film and the inside of the electrochromic device share a substrate, the thickness of the device is reduced.

Further, the electrochromic device is a PDLC device, and the PDLC device comprises a first PDLC thin film substrate, a first PDLC transparent conductive layer, a polymer-dispersed liquid crystal layer, and a second PDLC transparent conductive layer, which are laminated in order. , including a second PDLC thin film substrate.

Further, the electrochromic device is an EC device, and the EC device comprises a first EC thin film substrate, a first EC transparent conductive layer, an electrochromic layer, an ion conduction layer, an ion storage layer, which are laminated in order. A second EC transparent conductive layer, a second EC thin film substrate.

further comprising a water/oxygen barrier film positioned between the EC device and a second glare film, wherein the second glare film is provided inside the water/oxygen barrier film; , a second texture layer provided inside the water/oxygen barrier film, a second coating layer provided inside the second texture layer, and an ink layer positioned inside the second coating layer. Since EC devices are usually sensitive to water and oxygen, adding a water and oxygen barrier film can delay the water and oxygen attack to some extent and effectively extend the life of EC devices.

Further, the first glare film comprises a first glare film substrate, a first texture layer provided inside the first glare film substrate, and a first texture layer provided inside the first texture layer. one coating layer, the first coating layer adhered to the electrochromic device by a first transparent optical adhesive, the first glare film located outside and having no ink layer, and In this case, the substrate is not shared with the electrochromic device.

Further, the first glare film includes a first coating layer and a first textured layer provided inside the first coating layer, the first textured layer being applied to an external common thin film substrate. A first glare film, located on the outside, is located on the outside, does not have an ink layer, and in this case shares a substrate with the electrochromic device.

Further, the second glare film comprises: a second glare film substrate; a second textured layer provided inside the second glare film substrate; and an ink layer located inside the second coating layer, the second glare film located inside and having the ink layer and in this case sharing a substrate with the electrochromic device do not.

Further, the second glare film comprises a second textured layer provided inside the inner common thin film substrate, a second coating layer provided inside the second textured layer, and a second coating layer A second glare film is located inside, has an ink layer, and in this case shares a substrate with the electrochromic device.

Furthermore, the protective case is arranged outside the electronic device.

The beneficial technical effects of the present invention compared with the prior art are as follows.

1. the electrochromic device is located outside the second glare film or between the first glare film and the second glare film and the color of the glare film when the electrochromic device is in different states; It can be superimposed with textures to show different visual effects and achieve active color change.

2. If the electrochromic device is a PDLC device and the electrochromic device is located outside the second glare film, the PDLC device will partially block the color of the glare film and the structure when the PDLC device is in a haze state. The light and the reflected light of the textured structure can be completely blocked, and the observer can see some color superimposition effects of the PDLC device in the haze state and the glare film, and the PDLC device in the transparent state. In some cases, the color of the glare film behind the PDLC, the structured light and the reflected light of the textured structure are fully revealed, and the observer can see the color, texture effect of the glare film.

When the electrochromic device is a PDLC device and the electrochromic device is located between the first glare film and the second glare film, the outer glare film has no ink and is totally translucent. Yes, when the PDLC device is in a haze state, the PDLC device partially blocks the color of the inner glare film and completely blocks the structured light of the inner glare film and the reflected light of the textured structure. , the observer can see some color of the glare film on the inside, the texture of the glare film on the outside and the superimposed effect of the PDLC device in the haze state, if the PDLC device is in the transparent state , the effect of superimposing the colors and textures of the glare film on the inside and the texture of the glare film on the outside can be seen.

3. If the electrochromic device is an EC device and the electrochromic device is located outside the second glare film, the observer can see the texture and color of the glare film when the EC device is in the transparent state, and the EC When the device is in the colored state, the observer can see the combined effect of the glare film color, texture and the EC device, for example, the EC device shows one color after coloring and the transmittance is 5%-20%. %, what the observer sees is the pattern of the glare film superimposed with that color, and if the transmission of the EC device is less than 5% and close to 0, the observer sees the EC device as You may only be able to see the color tinted against the background and not the glare film behind.

When the electrochromic device is an EC device and the electrochromic device is located between the first glare film and the second glare film, the outer glare film has no ink and is in a totally translucent state. , when the EC device is in the colored state, the EC device blocks the imaging of the glare film behind, the observer can see the glare film in the front, and when the EC film device is in the transparent state, the observer saw a superimposed image of the light emitted from the front and back glare films.

FIG. 1 is a structural schematic diagram of Example 1 of a single glare film according to the present invention; Fig. 2 is a structural schematic diagram of Example 2 of the single glare film according to the present invention; FIG. 1 is a structural schematic diagram of an EC device according to the present invention; Fig. 3 is a structural schematic diagram of Example 3 of the single glare film according to the present invention; FIG. 4 is a structural schematic diagram of Embodiment 4 of the single glare film according to the present invention; FIG. 5 is a structural schematic diagram of Embodiment 5 of the single glare film according to the present invention; 1 is an exploded view of an electronic device protective case with a single glare film according to the present invention; FIG. 1 is an exploded view of an electronic device protective case with a single glare film according to the present invention; FIG. Fig. 1 is a structural schematic diagram of Example 1 of the double glare film according to the present invention; Fig. 2 is a structural schematic diagram of Embodiment 2 of the double glare film according to the present invention; Fig. 3 is a structural schematic diagram of Embodiment 3 of the double glare film according to the present invention; Fig. 4 is a structural schematic diagram of Embodiment 4 of the double glare film according to the present invention; FIG. 5 is a structural schematic diagram of Embodiment 5 of the double glare film according to the present invention; Fig. 6 is a structural schematic diagram of Embodiment 6 of the double glare film according to the present invention; Fig. 7 is a structural schematic diagram of Embodiment 7 of the double glare film according to the present invention; Fig. 8 is a structural schematic diagram of Embodiment 8 of the double glare film according to the present invention; Fig. 9 is a structural schematic diagram of Embodiment 9 of the double glare film according to the present invention; 1 is an exploded view of an electronic device protective case with a double glare film according to the present invention; FIG. 1 is an exploded view of an electronic device protective case with a double glare film according to the present invention; FIG.

Preferred embodiments of the present invention will be described in detail below with reference to the drawings.

The electronic device protective case in the present invention includes an electronic device protective case with a single glare film and an electronic device protective case with a double glare film.

The electrochromic devices in single glare film Examples 1 and 2 are PDLC devices.

<Example 1 of single glare film>
As shown in FIG. 1, the composite color-changing device consists of a first PDLC thin film substrate 131, a first PDLC transparent conductive layer 132, a polymer-dispersed liquid crystal layer 133, a second PDLC transparent conductive layer, which are sequentially stacked from outside to inside. including layer 134, second PDLC thin film substrate 135, first transparent optical adhesive 121, second glare film substrate 141, second textured layer 142, second coating layer 143, and ink layer 144. .

The first PDLC thin film substrate, the first PDLC transparent conductive layer, the polymer-dispersed liquid crystal layer, the second PDLC transparent conductive layer, and the second PDLC thin film substrate constitute the PDLC device 130 .

The second glare film substrate, second texture layer, second coating layer, and ink layer constitute second glare film 140 .

In Example 1 of the single glare film, the second glare film and the PDLC device do not share a thin film substrate and are adhered between them by a transparent optical adhesive.

<Example 2 of single glare film>
As shown in FIG. 2, the composite color-changing device consists of a first PDLC thin film substrate 131, a first PDLC transparent conductive layer 132, a polymer-dispersed liquid crystal layer 133, a second PDLC transparent conductive layer, which are sequentially stacked from outside to inside. It includes a layer 134 , a second PDLC thin film substrate 135 , a second textured layer 141 , a second coating layer 142 and an ink layer 143 .

The first PDLC thin film substrate, the first PDLC transparent conductive layer, the polymer-dispersed liquid crystal layer, the second PDLC transparent conductive layer, and the second PDLC thin film substrate constitute a PDLC device, and the second PDLC thin film substrate The material, the second texture layer, the second coating layer, and the ink layer constitute a second glare film, and the second PDLC thin film substrate in Example 2 of the single glare film is the PDLC device and the second glare film. No. 2 glare film common thin film substrate.

In the above single glare film embodiment, when the PDLC device is not energized, the polymer dispersed liquid crystal layer is in a haze state with high haze and relatively low transmittance, and when the PDLC device is energized, the polymer dispersed liquid crystal layer The dispersed liquid crystal layer is in a transparent state with low haze and relatively high transmittance.

The side closer to the field of view is the outside and the side farther from the field of view is the inside. When the PDLC device is close to the field of view and the second glare film is far from the field of view, and the PDLC device is in a haze state, the PDLC device partially blocks the color of the second glare film and also provides structured light and textured structures. can completely block the reflected light of the PDLC device in the haze state and the observer can see some chromatic superimposition effects of the second glare film and the PDLC device in the transparent state. In that case, the color, structured light, and reflected light of the textured structure of the second glare film behind the PDLC are fully revealed, and the observer can see the color, texture effect of the second glare film.

The electrochromic devices in single glare film Examples 3, 4 and 5 are EC devices.

<Example 3 of single glare film>
As shown in FIGS. 3 and 4, the composite color-changing device consists of a first EC thin film substrate 151, a first EC transparent conductive layer 152, an electrochromic layer 153, an ionic conductive layer 154, laminated in order from outside to inside. ion storage layer 155, second EC transparent conductive layer 156, second EC thin film substrate 157, first transparent optical adhesive 121, second glare film substrate 141, second texture layer 142, second coating layer 143 and ink layer 144 .

The first EC thin film substrate, the first EC transparent conductive layer, the electrochromic layer, the ion conducting layer, the ion storage layer, the second EC transparent conductive layer, and the second EC thin film substrate form the EC device 150. The second glare film substrate, the second texture layer, the second coating layer, and the ink layer constitute the second glare film.

In Example 3 of the single glare film, the second glare film and the EC device do not share a thin film substrate and are adhered between them by a transparent optical adhesive.

<Example 4 of single glare film>
As shown in FIGS. 3 and 5, the composite color-changing device consists of a first EC thin film substrate 151, a first EC transparent conductive layer 152, an electrochromic layer 153, an ion conductive layer 154, and a Ion storage layer 155, second EC transparent conductive layer 156, second EC thin film substrate 157, first transparent optical adhesive 121, water and oxygen barrier film 160, second texture layer 142, second coating It includes layer 143 and ink layer 144 .

The first EC thin film substrate, the first EC transparent conductive layer, the electrochromic layer, the ion conducting layer, the ion storage layer, the second EC transparent conductive layer, and the second EC thin film substrate constitute an EC device. and the water/oxygen barrier film, the second texture layer, the second coating layer, and the ink layer constitute a second glare film.

In Example 4 of the single glare film, the water-oxygen barrier film is the second glare film substrate.

<Example 5 of single glare film>
As shown in FIGS. 3 and 6, the composite color-changing device consists of a first EC thin film substrate 151, a first EC transparent conductive layer 152, an electrochromic layer 153, an ionic conductive layer 154, laminated in order from the outside to the inside. Ion storage layer 155, second EC transparent conductive layer 156, second EC thin film substrate 157, first transparent optical adhesive 121, water/oxygen barrier film 160, second transparent optical adhesive 122, second glare film substrate 141 , second texture layer 142 , second coating layer 143 and ink layer 144 .

The first EC thin film substrate, the first EC transparent conductive layer, the electrochromic layer, the ion conducting layer, the ion storage layer, the second EC transparent conductive layer, and the second EC thin film substrate constitute an EC device. and the second glare film substrate, the second texture layer, the second coating layer, and the ink layer constitute the second glare film.

In Examples 4 and 5 of the single glare film, a water/oxygen barrier film is present, and since EC devices are typically sensitive to water/oxygen, the addition of the water/oxygen barrier film reduces water/oxygen attack. can be delayed to some extent and the life of the EC device can be effectively extended.

The side closer to the field of view is the outside and the side farther from the field of view is the inside. When the EC device is close to the field of view and the second glare film is far from the field of view and the EC device is in the transparent state, the observer can see the texture reflected light and color of the second glare film and the EC device is When in the colored state, the observer can see the combined effect of the color, texture and EC device of the second glare film, for example, the EC device shows one color after coloring and the transmittance is 5%~ At 20%, what the observer sees is the pattern of the second glare film superimposed with the color of interest; may only be able to see the color tinted to the EC device and not the second glare film behind.

Compared with the method in which the composite color changing device is attached to the mobile phone rear cover, attaching the composite color changing device to the mobile phone protective case and other electronic equipment protective case 1 has the following advantages. 1. The composite color-changing device has a constant thickness, so when attached to the mobile phone back cover, the thickness of the mobile phone will be significantly increased, but the protective case will not be sensitive to the increase in thickness. 2. The composite color changing device cannot be replaced when attached to the mobile phone back cover, but is easy to replace when attached to the mobile phone case, allowing all mobile phones to have color changing function.

In the above embodiment of the single glare film, the thin film substrate is made of transparent materials such as glass, plastic, thin film, etc., the optical adhesive is OCA, and the second texture layer is UV pattern. and the second coating layer is NCVM.

The single glare film embodiment described above employing a common thin film substrate allows the overall thickness of the composite color changing device to be reduced.

The electrochromic device in Examples 1, 2, 3, 4 of the double glare film is a PDLC device.

<Example 1 of double glare film>
As shown in FIG. 9, the composite color changing device comprises a first glare film substrate 111, a first textured layer 112, a first coating layer 113, a first transparent optical adhesive, laminated in order from the outside to the inside. 121, first PDLC thin film substrate 131, first PDLC transparent conductive layer 132, polymer dispersed liquid crystal layer 133, second PDLC transparent conductive layer 134, second PDLC thin film substrate 135, second transparent optical adhesive It includes an agent 122 , a second glare film substrate 141 , a second textured layer 142 , a second coating layer 143 and an ink layer 144 .

The first PDLC thin film substrate, the first PDLC transparent conductive layer, the polymer-dispersed liquid crystal layer, the second PDLC transparent conductive layer, and the second PDLC thin film substrate constitute the PDLC device 130 .

The first glare film substrate, the first textured layer and the first coating layer constitute the first glare film 110 . The first glare film has no ink layer and is in a translucent state.

The second glare film substrate, the second texture layer, the second coating layer, and the ink layer constitute the second glare film 140, the second texture layer, the second coating layer, and the ink layer. are provided in a selectable manner.

Each glare film and PDLC device do not share a thin film substrate and are adhered by a transparent optical adhesive.

<Example 2 of double glare film>
As shown in FIG. 10, the composite color-changing device consists of a first coating layer 113, a first texture layer 112, a first PDLC thin film substrate 131, a first PDLC transparent conductive layer, which are sequentially stacked from outside to inside. 132, polymer dispersed liquid crystal layer 133, second PDLC transparent conductive layer 134, second PDLC thin film substrate 135, second transparent optical adhesive 122, second glare film substrate 141, second textured layer 142 , a second coating layer 143 and an ink layer 144 .

The first PDLC thin film substrate, the first PDLC transparent conductive layer, the polymer-dispersed liquid crystal layer, the second PDLC transparent conductive layer, and the second PDLC thin film substrate constitute the PDLC device 130 .

The first textured layer, the first coating layer, and the first PDLC thin film substrate constitute the first glare film 110 . The first glare film has no ink layer and is in a translucent state.

The second glare film substrate, the second texture layer, the second coating layer, and the ink layer constitute the second glare film 140, the second texture layer, the second coating layer, and the ink layer. are provided in a selectable manner.

The first PDLC thin film substrate is the thin film substrate shared by the PDLC device and the first glare film, ie the external common thin film substrate.

<Example 3 of double glare film>
As shown in FIG. 11, the composite color changing device comprises a first glare film substrate 111, a first textured layer 112, a first coating layer 113, a first transparent optical adhesive, laminated in order from outside to inside. 121 , first PDLC thin film substrate 131 , first PDLC transparent conductive layer 132 , polymer-dispersed liquid crystal layer 133 , second PDLC transparent conductive layer 134 , second PDLC thin film substrate 135 , second texture layer 142 , a second coating layer 143 and an ink layer 144 .

The first glare film substrate, the first textured layer and the first coating layer constitute the first glare film 110 . The first glare film has no ink layer and is in a translucent state.

The second PDLC thin film substrate, the second texture layer, the second coating layer and the ink layer constitute the second glare film 140, the second texture layer, the second coating layer and the ink layer. are provided in a selectable manner.

The second PDLC thin film substrate is the thin film substrate shared by the PDLC device and the second glare film, ie, the internal common thin film substrate.

<Example 4 of double glare film>
As shown in FIG. 12, the composite color-changing device consists of a first coating layer 113, a first texture layer 112, a first PDLC thin film substrate 131, a first PDLC transparent conductive layer, which are sequentially stacked from outside to inside. 132 , a polymer dispersed liquid crystal layer 133 , a second PDLC transparent conductive layer 134 , a second PDLC thin film substrate 135 , a second texture layer 142 , a second coating layer 143 and an ink layer 144 .

The first textured layer, the first coating layer, and the first PDLC thin film substrate constitute the first glare film 110 . The first glare film has no ink layer and is in a translucent state.

The second PDLC thin film substrate, the second texture layer, the second coating layer and the ink layer constitute the second glare film 140, the second texture layer, the second coating layer and the ink layer. are provided in a selectable manner.

The first PDLC thin film substrate is the thin film substrate shared by the PDLC device and the first glare film, ie the external common thin film substrate.

The second PDLC thin film substrate is the thin film substrate shared by the PDLC device and the second glare film, ie, the internal common thin film substrate.

In the above dual glare film embodiment, when the PDLC device is not energized, the polymer dispersed liquid crystal layer is in a haze state with relatively low transmittance, and when the PDLC device is energized, the polymer dispersed liquid crystal layer is in a transparent state with relatively high transmittance.

The side closer to the field of view is the outside and the side farther from the field of view is the inside. The first glare film is close to the field of view and has only a texture layer and a coating layer, no ink layer, and is totally translucent. A second glare film, away from the field of view, is selectively provided with a texture layer, a coating layer, and an ink layer. When the PDLC device is in haze, one can see the color of some of the glare film on the inside, the texture of the glare film on the outside and the superimposed effect of the PDLC device in haze. When the PDLC device is in a transparent state and the second glare film is provided with a texture layer, an ink layer, one can see the overlapping effect of the color and texture of the inner glare film and the texture of the outer glare film. , and if the second glare film has only a texture layer, we can see the overlapping effect of the texture of the inner glare film and the texture of the outer glare film, and the second glare film has only an ink layer. , one can see the superposition effect of the color of the inner glare film and the texture of the outer glare film.

<Example 5 of double glare film>
As shown in FIG. 13, the composite color changing device comprises a first glare film substrate 111, a first textured layer 112, a first coating layer 113, a first transparent optical adhesive, laminated in order from outside to inside. 121, first EC thin film substrate 151, first EC transparent conductive layer 152, electrochromic layer 153, ion conductive layer 154, ion storage layer 155, second EC transparent conductive layer 156, second EC thin film substrate material 157 , second transparent optical adhesive 122 , second glare film substrate 141 , second textured layer 142 , second coating layer 143 and ink layer 144 .

First EC thin film substrate 151, first EC transparent conductive layer 152, electrochromic layer 153, ion conductive layer 154, ion storage layer 155, second EC transparent conductive layer 156, and second EC thin film substrate 157 configures the EC device 150 .

The configurations of the first glare film and the second glare film are the same as in Example 1 of the double glare film.

<Example 6 of double glare film>
As shown in FIG. 14, the difference from Example 5 of the double glare film is to add a water-oxygen barrier film 160 and a third transparent optical adhesive 123 between the EC device and the second glare film. As EC devices are usually sensitive to water and oxygen, adding a water and oxygen barrier film can delay water and oxygen erosion to some extent and effectively extend the life of EC devices. .

<Example 7 of double glare film>
As shown in FIG. 15, the difference from Example 2 of the double glare film is that the electrochromic device is an EC device, and the water/oxygen barrier film 160 and the third glare film are interposed between the EC device and the second glare film. of transparent optical glue 123 is added.

<Example 8 of double glare film>
As shown in FIG. 16, the difference from Example 5 of the double glare film is that the second glare film substrate is replaced with the water/oxygen barrier film 160, i.e. the water/oxygen barrier film is replaced by the thin substrate. It is to be

<Example 9 of double glare film>
As shown in FIG. 17, the difference from Example 2 of the double glare film is that the electrochromic device is an EC device and the second glare film substrate is replaced with a water/oxygen barrier film 160. be.

The side closer to the field of view is the outside and the side farther from the field of view is the inside. The first glare film is close to the field of view and has only a texture layer and a coating layer, no ink layer, and is totally translucent. A second glare film, away from the field of view, is selectively provided with a texture layer, a coating layer, and an ink layer. When the EC device is in the colored state, the EC device blocks the imaging behind the glare film, the viewer can see the front glare film, and when the EC thin film device is in the transparent state, the viewer can see What you see is a superimposed image of the emitted light of the front and back glare films.

In the embodiment of the above double glare film, transparent materials such as glass, plastic and thin film are used as the thin film substrate, OCA is selected as the transparent optical adhesive, and UV pattern is used as the texture layer. , the coating layer is NCVM.

Compared with the method in which the composite color changing device is attached to the mobile phone rear cover, attaching the composite color changing device to the mobile phone protective case and other electronic equipment protective case 1 has the following advantages. 1. The composite color-changing device has a constant thickness, so when attached to the mobile phone back cover, the thickness of the mobile phone will be significantly increased, but the protective case will not be sensitive to the increase in thickness. 2. The composite color changing device cannot be replaced when attached to the mobile phone back cover, but is easy to replace when attached to the mobile phone case, allowing all mobile phones to have color changing function.

The dual glare film embodiments described above that employ a common thin film substrate allow the overall thickness of the composite color changing device to be reduced.

Any combination of the technology known in the industry, such as PDLC, EC, split driving, etc., and the present invention should be regarded as falling within the protection scope of the present invention.

It will be apparent to those skilled in the art that the invention is not limited to the details of the illustrative embodiments set forth above, but that the invention may be modified in other specific forms without departing from the spirit or essential characteristics of the invention. can be realized. Accordingly, the embodiments are to be considered in all respects as illustrative and non-limiting, and the scope of the utility model is to be limited not by the foregoing description, but by the appended claims, since All changes that come within the meaning and range of equivalents of a claim are intended to be included in the invention and any reference signs in the claims should not be construed as limiting such claims.

It should be noted that although the present specification is described according to the embodiments, each embodiment does not contain only one independent technical solution, and this description manner in the specification is for the sake of clarity. However, those skilled in the art should understand that the specification should be viewed as a whole, and the technical solutions in each embodiment can be combined appropriately with other implementations that can be understood by those skilled in the art. Morphology may be formed.

Claims (15)

a case and a composite color-changing device attached to the case, wherein the composite color-changing device comprises an outer electrochromic device, a second inner glare film, the second glare film and the electrochromic device. and a first transparent optical adhesive for adhering an electrochromic electronics protective case. The electrochromic device comprises an innermost common thin film substrate, and wherein the second glare film is attached directly to a side of the common thin film substrate away from the electrochromic device. The electrochromic electronic device protective case according to claim 1. The composite color changing device comprises an outer electrochromic device, an inner second glare film, a water and oxygen barrier film between the electrochromic device and the second glare film, and an electrochromic device. a first transparent optical adhesive provided between the device and the water/oxygen barrier film; and a second transparent optical adhesive provided between the water/oxygen barrier film and the second glare film. 2. The electrochromic electronic equipment protective case of claim 1, wherein the electrochromic electronic equipment protective case is replaced with a structure comprising: wherein the composite color changing device comprises a first outer glare film, a second inner glare film, and an electrochromic device positioned between the first and second glare films; a first transparent optical adhesive between the first glare film and the electrochromic device; and a second transparent optical adhesive between the second glare film and the electrochromic device. 2. The electrochromic electronic equipment protective case of claim 1, wherein the electrochromic electronic equipment protective case is replaced with a structure comprising: wherein the composite color changing device comprises a first outer glare film, a second inner glare film, and an electrochromic device positioned between the first and second glare films; a second glare film and a second transparent optical adhesive disposed between an electrochromic device, the outermost of said electrochromic device being provided with an external common thin film substrate; 2. The protective case for electrochromic electronic equipment according to claim 1, wherein the first glare film is provided on the outside of the external common thin film substrate. wherein the composite color changing device comprises a first outer glare film, a second inner glare film, and an electrochromic device positioned between the first and second glare films; a first glare film and a first transparent optical adhesive disposed between an electrochromic device, wherein an inner common thin film substrate is disposed innermost of said electrochromic device; 2. The protective case for electrochromic electronic equipment according to claim 1, wherein said second glare film is provided inside said inner common thin film substrate. The composite color changing device comprises a first outer glare film, a second inner glare film, and an electrochromic device between the first glare film and the second glare film. wherein the electrochromic device is provided with an outermost common thin film substrate and an innermost common thin film substrate, the first glare film comprising: 2. The protective case for electrochromic electronic equipment according to claim 1, wherein said second glare film is provided outside an outer common thin film substrate, and said second glare film is provided inside an inner common thin film substrate. The electrochromic device is a PDLC device, and the PDLC device comprises a first PDLC thin film substrate, a first PDLC transparent conductive layer, a polymer-dispersed liquid crystal layer, a second PDLC transparent conductive layer, and a second PDLC transparent conductive layer laminated in order. The electrochromic electronic equipment protective case according to any one of claims 1 to 7, characterized in that it comprises a second PDLC thin film substrate. The electrochromic device is an EC device comprising a first EC thin film substrate, a first EC transparent conductive layer, an electrochromic layer, an ion conducting layer, an ion storage layer, a second and a second EC thin film substrate. a water/oxygen barrier film positioned between the EC device and a second glare film, wherein the second glare film is provided inside the water/oxygen barrier film; - comprising a second texture layer provided inside the oxygen barrier film, a second coating layer provided inside the second texture layer, and an ink layer positioned inside the second coating layer; The electrochromic electronic device protective case according to claim 9, characterized in that: The first glare film comprises a first glare film substrate, a first texture layer provided inside the first glare film substrate, and a first texture layer provided inside the first texture layer. 7. The electrochromic electronics protective case of claim 4 or 6, comprising a coating layer, wherein the first coating layer is adhered to the electrochromic device by a first transparent optical adhesive. The first glare film includes a first coating layer and a first textured layer provided inside the first coating layer, the first textured layer outside the external common thin film substrate. 8. The protective case for electrochromic electronic equipment according to claim 5 or 7, wherein: The second glare film comprises a second glare film substrate, a second textured layer inside the second glare film substrate, and a second coating inside the second textured layer. 6. The electrochromic electronics protective case of claim 1, 3, 4 or 5, comprising a layer and an ink layer located inside the second coating layer. The second glare film includes a second textured layer provided inside the internal common thin film substrate, a second coating layer provided inside the second textured layer, and an inner side of the second coating layer. 8. The electrochromic electronics protective case according to claim 2, 6 or 7, comprising an ink layer located at the . The electrochromic electronic device protective case according to any one of claims 1 to 7, wherein the protective case is arranged outside the electronic device.

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