TWI418280B - Housing and electronic device using the same - Google Patents

Description

Housing and electronic device using the same

The present invention relates to a housing, and more particularly to a housing having a changeable pattern and an electronic device to which the housing is applied.

Currently, the housing of an electronic device is typically provided with a decorative pattern to attract the eye of the consumer. The decorative pattern can be printed or sprayed directly onto the surface of the housing or formed between the substrate and the film using an IML process. However, the decorative pattern produced by the above method is single and does not have variability, and it is difficult to satisfy the requirement of the consumer to pursue a housing having a dynamic pattern.

In view of this, it is necessary to provide a housing having a function in which the pattern can be changed.

In addition, it is also necessary to provide an electronic device to which the above casing is applied.

A casing comprising an outer skin layer and a base body, the casing further comprising a first conductive layer, an electronic ink layer and a second conductive layer, which are sequentially sandwiched between the outer skin layer and the base body, the second conductive layer A circuit system is disposed, and the first conductive layer and the second conductive layer are each provided with an electrical connection interface.

An electronic device includes a body and a casing, the body includes an integrated chip and a power supply control unit, and the casing includes an outer surface layer and a base body, and the housing further includes The first conductive layer, the electronic ink layer and the second conductive layer are sequentially disposed between the outer surface layer and the substrate, and the second conductive layer is provided with a circuit system, and the first conductive layer and the second conductive layer are respectively disposed An electrical connection interface; the electrical connection interface of the first conductive layer and the second conductive layer is electrically connected to the power supply control unit of the body, and the control program of the integrated chip of the body controls the circuit system of the second conductive layer, so that An alternating electric field is generated between a partial region of the two conductive layers and the first conductive layer, so that the electronic ink layer displays a pattern.

Compared with the prior art, the control program of the integrated wafer in the body of the electronic device of the present invention controls the circuit system of the second conductive layer to generate an alternating electric field between the partial region of the second conductive layer and the first conductive layer. The electronic ink layer is patterned to display a pattern on the housing.

10‧‧‧shell

11‧‧‧Outer layer

13‧‧‧First conductive layer

14‧‧‧Electronic ink layer

15‧‧‧Second conductive layer

16‧‧‧Protective layer

17‧‧‧Base

20‧‧‧Electronic devices

21‧‧‧ body

101‧‧‧ pattern

1 is a schematic cross-sectional view of a housing according to a preferred embodiment of the present invention; and FIG. 2 is a perspective view of an electronic device according to a preferred embodiment of the present invention.

Referring to FIG. 1 , a housing 10 according to a preferred embodiment of the present invention includes an outer surface layer 11 and a base body 17 . The housing 10 further includes a first conductive layer that is sequentially sandwiched between the outer surface layer 11 and the base body 17 . Layer 13, electronic ink layer 14, second conductive layer 15, and protective layer 16.

The outer layer 11 is a transparent plastic layer, and the plastic may be selected from the group consisting of polypropylene (PP), polyamine (PA), polycarbonate (PC), polyethylene terephthalate (PET), and polymethacrylic acid. Any of methyl esters (PMMA). The outer skin 11 can be hardened to make the surface smooth and scratch resistant. The outer layer 11 has a thickness of about 0.1 to 0.2 mm.

The first conductive layer 13 is a transparent indium tin oxide conductive film which can be formed on the surface of the outer skin layer 11 by screen printing. The thickness of the first conductive layer 13 may be between 2 and 10 μm, preferably 5 μm. The first conductive layer 13 is provided with an electrical connection interface (not shown).

The electronic ink layer 14 is formed on the surface of the first conductive layer 13 by screen printing. When printing the electronic ink layer 14, it is preferable to use a polyester screen. The electronic ink layer 14 has a thickness of about 45-55 μm.

The material forming the electronic ink layer 14 is a specific transparent electronic ink. The electronic ink is formed by suspending and dispersing a plurality of microcapsule particles in a liquid medium. Each microcapsule contains a transparent liquid and a plurality of positively charged white pigment particles and negatively charged black pigment particles dispersed in the transparent liquid. When the microcapsules are in an electric field, the positively charged white pigment particles and the negatively charged black pigment particles move to the ends of the microcapsules under the action of the electric field, respectively, when the negatively charged black pigment particles move to the microcapsules close to the When one end of the outer skin layer 11 is described, the electronic ink layer 14 and the casing 10 can be made to display the pattern 101.

The second conductive layer 15 is a cured conductive silver paste or conductive ink layer formed on the surface of the electronic ink layer 14 by screen printing. The components of the conductive silver paste mainly include silver powder, glass powder and a binder; and the conductive component in the conductive ink may be aluminum powder or carbon powder. The second conductive layer 15 has a thickness of about 8-10 μm. An electrical connection interface (not shown) is disposed on the second conductive layer 15. Display circuitry (not shown) is also disposed in the second conductive layer 15, and the display circuitry can be designed in accordance with different patterns to be displayed by the housing 10.

The protective layer 16 is an insulating ink layer which is formed on the surface of the second conductive layer 15 by screen printing. The protective layer 16 has a thickness of about 20 to 30 μm, which serves to protect the second conductive layer 15.

The base 17 is a plastic layer which is formed on the surface of the protective layer 16 by injection molding. The material forming the substrate 17 is polyethylene (PE), polycarbonate (PC), acrylonitrile-styrene-butadiene copolymer (ABS), polymethyl methacrylate (PMMA), and polyterephthalic acid. Any of plastics such as ethylene glycol (PET).

It can be understood that the protective layer 16 can be omitted, that is, the base 17 is directly formed on the surface of the second conductive layer 15.

As shown in FIG. 1 and FIG. 2 , an electronic device 20 according to a preferred embodiment of the present invention includes a body 21 and a housing 10 mounted on the body 21 . The body 21 includes an integrated chip and a power supply control unit (not shown). The housing 10 includes an outer surface layer 11 and a first conductive layer 13 , an electronic ink layer 14 , a second conductive layer 15 , a protective layer 16 , and a base body 17 which are sequentially formed on the surface of the outer surface layer 11 . The second conductive layer 15 is provided with a display circuit system. The first conductive layer 13 and the second conductive layer 15 are provided with an electrical connection interface, and the first conductive layer 13 and the second conductive layer 15 are electrically connected. The power supply control unit of the body 21 is electrically connected, and the control program of the integrated wafer of the body 21 controls the display circuit system of the second conductive layer 15 to generate a partial region of the second conductive layer 15 and the first conductive layer 13. The alternating electric field causes the electronic ink layer 14 to display the pattern 101. The pattern 101 is presented through the first conductive layer 13 and the outer surface layer 11 to produce a three-dimensional visual effect.

The display circuit system of the second conductive layer 15 is controlled by the integrated wafer of the body 21 Controlled by the control program, an alternating electric field is generated between different regions of the second conductive layer 15 and the first conductive layer 13 at different times, thereby making the electronic ink layer 14 The pattern 101 produces a varying effect.

The body 21 of the electronic device 20 can be a body of a mobile phone, a PDA, a camera, an MP3 or an MP4.

The housing 10 of the preferred embodiment of the present invention provides an alternating electric field to the electronic ink layer 14 by the first conductive layer 13 and the second conductive layer 15 provided with the display circuitry, so that the electronic ink layer 14 assumes a pattern, and The pattern of the electronic ink layer 14 is controlled and changed by a control program for integrating the wafer in the body 21 of the electronic device 20, thereby causing the housing 10 to produce a decorative effect of pattern change.

10‧‧‧shell

11‧‧‧Outer layer

13‧‧‧First conductive layer

14‧‧‧Electronic ink layer

15‧‧‧Second conductive layer

16‧‧‧Protective layer

17‧‧‧Base

Claims (8)

An electronic device includes a body and a housing, the body includes an integrated chip and a power supply control unit, the housing includes an outer surface layer and a base body, wherein the housing further includes an outer layer and a base body a first conductive layer, an electronic ink layer, and a second conductive layer, wherein the second conductive layer is provided with a circuit system, and the first conductive layer and the second conductive layer are respectively provided with an electrical connection interface; The electrical connection interface of the conductive layer and the second conductive layer is electrically connected to the power supply control unit of the body, and the control program of the integrated wafer in the body controls the circuit system of the second conductive layer to make a partial region of the second conductive layer and the first An alternating electric field is generated between the conductive layers to cause the electronic ink layer to display a pattern. The electronic device of claim 1, wherein the first conductive layer is an indium tin oxide conductive film having a thickness of between 2 and 10 μm. The electronic device of claim 1, wherein the electronic ink layer has a thickness of between 45 and 55 μm. The electronic device of claim 1, wherein the second conductive layer is a cured conductive silver paste or a conductive ink layer, and the second conductive layer has a thickness of 8-10 μm. The electronic device according to claim 1, wherein the outer surface layer is a transparent plastic layer having a thickness of 0.1-0.2 mm. The electronic device of claim 1, wherein a protective layer is disposed between the second conductive layer and the substrate. The electronic device of claim 6, wherein the protective layer is insulated Ink layer. The electronic device according to claim 1, wherein the substrate is a plastic layer formed by injection molding, and the material forming the substrate is polyethylene, polycarbonate, acrylonitrile-styrene-butadiene. Any of a polymer, a polymethyl methacrylate, and a polyethylene terephthalate plastic.