CN214335413U

CN214335413U - Electrochromic device, rear cover and equipment of PDLC (polymer dispersed liquid crystal) superposed multilayer laminated film

Info

Publication number: CN214335413U
Application number: CN202120301486.8U
Authority: CN
Inventors: 米赛
Original assignee: Anhui Jingzhuo Optical Display Technology Co Ltd
Current assignee: Anhui Jingzhuo Optical Display Technology Co Ltd
Priority date: 2021-02-02
Filing date: 2021-02-02
Publication date: 2021-10-01
Anticipated expiration: 2031-02-02

Abstract

The utility model provides a PDLC superposes electrochromic device, back lid and equipment of multilayer lamination film, wherein electrochromic device includes the first film substrate, first conducting layer, PDLC layer and the second conducting layer of superpose to and keep away from on PDLC layer one side at the second conducting layer and form multilayer lamination film and the printing ink layer that has interference reflective structure light in proper order. The utility model discloses a to have the multilayer lamination film that has interference reflection structure light of dazzling various effect and combine with the PDLC layer that can change colour fast and adjust, realize that the color dazzles beautiful color changing effect, compare with ordinary electrochromic device, the color is fuller bright, is fit for the outward appearance decoration of consumer electronics class and household electrical appliances, car decorations product more.

Description

Electrochromic device, rear cover and equipment of PDLC (polymer dispersed liquid crystal) superposed multilayer laminated film

Technical Field

The utility model relates to a consumer electronics product function device field, concretely relates to with PDLC layer and multilayer lamination film superimposed electrochromic device, back lid and equipment that have interference reflection structure light.

Background

At present, the back cover materials of common consumer electronic products such as mobile phones and the like are made of materials such as metal, glass, plastic, leather, ceramic and the like. No matter which material is used, the existing product can not realize the active control of appearance effect change. In recent two years, some mobile phone manufacturers gradually release mobile phones with active color-changing rear covers, and the currently adopted technology is an electrochromic technology using polythiophene as a color-changing material. The technology currently has the following problems:

1. the color change speed is slow, and 5 to 10 seconds are needed;

2. the color saturation is not high, and the color is not bright visually;

3. the cost is high.

SUMMERY OF THE UTILITY MODEL

In order to solve the above technical problem, the utility model provides an utilize the PDLC layer and have the multilayer lamination film combination of interfering reflection structure light to obtain the device of electrochromic effect, it is fast to change colour, bright in color, and the multilayer lamination film of the interference reflection structure light of the PDLC of different colors or different structure light of collocation can obtain different effects, and concrete technical scheme is as follows:

an electrochromic device of PDLC stacked multilayer thin films with interference reflective structured light, comprising:

the first film substrate, the first conducting layer, the PDLC layer and the second conducting layer are superposed, and the multilayer laminated film with the interference reflection structure light and the ink layer are sequentially formed on one side, away from the PDLC layer, of the second conducting layer.

The utility model also provides a back lid, include:

a transparent substrate;

the electrochromic device as described above is formed on one side of the transparent substrate.

An apparatus is also provided, comprising the above-mentioned back cover.

According to the above technical scheme, the utility model discloses a to have the multilayer lamination film that has interference reflection structure light of dazzling various effect and the PDLC layer that can change colour the regulation fast and combine, realize that the color dazzles beautiful color change effect, compare with ordinary electrochromic device, the color is fuller bright, is fit for the outward appearance decoration of consumer electronics class and household electrical appliances, car decorations product more.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of an electrochromic device according to the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the rear cover of the present invention;

fig. 3 is a schematic diagram of the working principle of the PDLC of the present invention.

Detailed Description

The present invention will be described in detail with reference to the drawings and specific embodiments, wherein prior to describing the technical aspects of the embodiments of the present invention in detail, the terms and the like are explained, and in the present specification, the components with the same names or the same reference numbers represent the similar or the same structures and are only used for illustrative purposes.

As shown in fig. 1, the present invention provides a PDLC stacked electrochromic device with a multilayer laminated film having interference reflection structured light, which includes a first film substrate 1, a first conductive layer 2, a PDLC layer 3 and a second conductive layer 4 stacked on the substrate, and a multilayer laminated film 5 and an ink layer 6 having interference reflection structured light formed in sequence on one side of the second conductive layer away from the PDLC layer.

The PDLC layer 3 mainly contains polymer gum and liquid crystal and optionally also comprises spacing particles, the thickness of the PDLC layer ranges from 5 microns to 200 microns, the PDLC layer is formed by dispersing liquid crystal in an organic solid polymer matrix in micro-droplet size, the optical axis of the micro-droplet composed of liquid crystal molecules is in free orientation, the refractive index of the micro-droplet is not matched with that of the matrix, and when light passes through the matrix, the light is strongly scattered by the micro-droplet to form an opaque state with high haze. The application of an electric field can adjust the optical axis orientation of the liquid crystal droplets, which assume a transparent state when the refractive indices of the liquid crystal and the polymer matrix are matched, and which revert to the original high haze state when the electric field is removed.

The multilayer laminated film 5 with interference reflection structured light, also called picaus film, is formed by stacking and stretching thousands of PET polymers with different refractive indexes, and an optical reflective film with the thickness of 50-70 microns is formed by light penetration and refraction, and reflects various colors, wherein the colors of the reflective film come from structured light formed by repeated transmission interference reflection of a multilayer structure, and the most typical product is picaus series film of Japan.

The principle of picausus film displaying structured light is multilayer film interference reflection, if pdcc is superimposed on picausus, when pdcc is atomized, parallel light in incident light is scattered, the scattered light cannot form structured light after passing through the film, and only the color of pdcc can be visually seen, and the color of picausus film cannot be seen at all. When the pdlc is electrified and transparent, the interference reflection structured light of picaus returns to normal, and the color after the interference reflection structured light of picaus and the color of pdlc are combined is visually seen. Conventional glare films do not have this effect, and only films like picaus with strong multilayer film interference reflections can produce a color change effect.

The PDLC can be added with dye, or one or two sides of the film base materials at two sides of the PDLC adopt film base materials with colors, so that different colors are formed to match with different picaus films to generate different visual effects.

Specifically, the first conductive layer 2, the PDLC layer 3 and the second conductive layer 4 constitute an electrochromic layer, the electrochromic layer having the PDLC layer is disposed above the multilayer laminated film having the interference reflection structured light, the PDLC disperses the interference reflection light of the multilayer laminated film having the interference reflection structured light due to the atomization effect when no electricity is supplied, the structured light of the multilayer laminated film having the interference reflection structured light is not visible, only the color of the ink under the multilayer laminated film having the interference reflection structured light is visible, and particularly when the ink is white, the entire device appears white. PDLC is transparent when the circular telegram, has the original structured light of multilayer lamination film that interferes reflection structure light and shows again to realize the effect that the electric drive discolours, PDLC and the combination of the multilayer lamination film that has interference reflection structure light realize that the color dazzles beautiful color-changing effect, and the printing ink of bottom in addition compares with ordinary electrochromic device, the utility model discloses the color is fuller bright.

In another embodiment, an optical adhesive layer and a second film substrate are stacked between the multilayer build-up film and the second conductive layer.

As shown in fig. 2, the present invention provides an embodiment of a rear cover, comprising:

a transparent substrate 7;

the electrochromic device is formed on one side of the transparent substrate and comprises a first film base material 1, a first conducting layer 2, a PDLC layer 3, a second conducting layer 4 and a multilayer laminated film 5 with interference reflection structured light which are arranged in a laminated mode, and an ink layer 6 laminated on one side, far away from the second conducting layer, of the multilayer laminated film.

Another embodiment of the back cover comprises

A transparent substrate;

the electrochromic device comprises a first film base material, a first conducting layer, a PDLC layer, a second conducting layer, a second film base material, an optical glue layer and a multilayer laminated film with interference reflection structured light, wherein the first film base material, the first conducting layer, the PDLC layer, the second conducting layer, the second film base material, the optical glue layer and the multilayer laminated film are arranged in a laminated mode; and the ink layer is superposed on one side of the multilayer laminated film, which is far away from the second conductive layer.

As shown in fig. 3, the cover further includes a voltage control circuit 8, the voltage control circuit is electrically connected to the first conductive layer 2 and the second conductive layer 4, which is to utilize the characteristics of the PDLC layer, the voltage control circuit applies a voltage gradually increasing process, the PDLC layer gradually changes from a high haze state to a low haze transparent state, and can be used to adjust the haze and transmittance of the PDLC layer.

The transparent substrate may be made of glass, quartz, polycarbonate, polymethyl methacrylate, or other transparent materials.

The first film substrate and the second film substrate are transparent polymer substrates, and can be selected from but not limited to transparent film substrates such as PET (polyethylene terephthalate), COP (cycloolefin polymer), PI polyimide and the like, and the thickness range of the substrates is 10-300 micrometers.

The first conducting layer 2 and the second conducting layer 4 can be made of one of transparent conducting materials such as ITO, FTO, AZO, nano silver paste, metal grids, PEDOT/PSS, metal oxide/metal oxide composite conducting layers and the like, and the square resistance range of the conducting materials is 10-1000 ohms, preferably 100-800 ohms.

The ink layer 6 may also be a film layer having texture, pattern or coloration, and combinations thereof.

The utility model also provides an equipment, including foretell back lid, equipment can be but not limited to be cell-phone, flat board and display screen.

The above-mentioned embodiments are only to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.

Claims

1. An electrochromic device of PDLC (polymer dispersed liquid crystal) laminated with a plurality of laminated films is characterized by comprising:

2. The electrochromic device according to claim 1, wherein an optical glue layer and a second film substrate are laminated between the multilayer laminated film and the second conductive layer.

3. A rear cover, comprising:

a transparent substrate;

an electrochromic device as claimed in claim 1 or 2 formed on one side of a transparent substrate.

4. The back cover of claim 3, further comprising a voltage control circuit electrically connected to the first and second conductive layers.

5. The back cover of claim 4, wherein the PDLC layer gradually changes from a high haze state to a low haze transparent state during the gradual increase of the voltage applied by the voltage control circuit.

6. An apparatus comprising a rear cover as claimed in any one of claims 3 to 5.