CN113811119B

CN113811119B - Shell assembly, preparation method thereof and electronic equipment

Info

Publication number: CN113811119B
Application number: CN202111068060.3A
Authority: CN
Inventors: 叶万俊
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2023-02-21
Anticipated expiration: 2041-09-13
Also published as: CN113811119A

Abstract

The invention discloses a shell assembly, a preparation method thereof and an electronic device. The housing assembly includes: the ink-jet printing device comprises a substrate, an optical coating layer, a first electrode layer, an electronic ink layer and a second electrode layer; the first electrode layer comprises a first pattern area and a first non-pattern area, the thickness of the first electrode layer of the first pattern area is different from that of the first electrode layer of the first non-pattern area, the first pattern area comprises a plurality of different first sub-pattern areas, and the thicknesses of the first electrode layers corresponding to the plurality of different first sub-pattern areas are different. Therefore, when voltage is applied to the first electrode layer and the second electrode layer, the color changing time of the first pattern region and the first non-pattern region is different, and the color changing time of the plurality of first sub-pattern regions is different. The invention can realize the dynamic change of the color and the pattern of the shell component through active control, and the shell component has the effect similar to a breathing lamp.

Description

Shell assembly, preparation method thereof and electronic equipment

Technical Field

The invention belongs to the technical field of electronic equipment, and particularly relates to a shell assembly, a preparation method of the shell assembly and the electronic equipment.

Background

With the development of communication technology, mobile terminals such as mobile phones and tablet computers have become indispensable tools for people. When a consumer faces a mobile terminal product with full-purpose of Lin Lang, not only needs to consider whether the functions of the product meet the requirements of the consumer, but also the appearance of the product is one of the important factors for the consumer to choose. However, as the mobile terminal is iterated, the appearance of each brand of mobile terminal gradually becomes homogeneous, the appearance identification is poor, and after the mobile terminal leaves the factory, the color and the pattern of the mobile terminal are usually fixed and are easy to generate aesthetic fatigue for a long time. The current housing assemblies have limited visual appeal.

The breathing lamp means that the light gradually changes from light to dark under the control of a microcomputer, and people feel as if breathing. The mobile phone reminding device is widely applied to mobile phones, becomes one of selling points of new mobile phones of various brands, and plays a role in reminding. However, the existing housing assembly with the effect similar to a breathing lamp needs to be provided with a complex circuit, has the defect of complex structure, and is not in line with the development trend of thinning the housing assembly.

Accordingly, there is a need for an improved housing assembly.

Disclosure of Invention

The present invention aims to ameliorate at least one of the above technical problems to at least some extent.

In order to solve the above technical problems, the present invention provides a housing assembly, including: a substrate; the optical coating layer is arranged on one side of the substrate; the first electrode layer is arranged on one side of the optical coating layer, which is far away from the substrate; the electronic ink layer is arranged on one side, far away from the substrate, of the first electrode layer; the second electrode layer is arranged on one side, far away from the substrate, of the electronic ink layer; the first electrode layer comprises a first pattern area and a first non-pattern area, the thickness of the first electrode layer of the first pattern area is different from that of the first electrode layer of the first non-pattern area, the first pattern area comprises a plurality of different first sub-pattern areas, and the thicknesses of the first electrode layers corresponding to the different first sub-pattern areas are different. Thus, when a voltage is applied to the first electrode layer and the second electrode layer, the first pattern region and the first non-pattern region are different in color change time, and the plurality of first sub-pattern regions are different in color change time. The invention can realize the dynamic change of the color and the pattern of the shell component through active control, and the shell component has the effect similar to a breathing lamp. Moreover, the shell assembly is simple in structure and arrangement, the development trend of lightness and thinness of the shell assembly is met, and the appearance expressive force and the user experience of the shell assembly can be improved.

The present invention also provides a method of making a housing assembly comprising: forming a first electrode layer and a second electrode layer, wherein the first electrode layer and the second electrode layer are opposite and arranged at intervals; injecting electronic ink into a gap between the first electrode layer and the second electrode layer to form an electronic ink layer; forming an optical coating layer on one side of the first electrode layer far away from the electronic ink layer; and attaching one side of the optical coating layer, which is far away from the electronic ink layer, to a substrate, wherein the first electrode layer comprises a first pattern area and a first non-pattern area, the thickness of the first electrode layer in the first pattern area is different from that of the first electrode layer in the first non-pattern area, the first pattern area comprises a plurality of different first sub-pattern areas, and the thicknesses of the first electrode layers corresponding to the plurality of different first sub-pattern areas are different. Therefore, when voltage is applied to the first electrode layer and the second electrode layer of the shell assembly, the color changing time of the first pattern area and the first non-pattern area is different, and the color changing time of the plurality of first sub-pattern areas is different, so that dynamic change of patterns and colors can be realized, and the effect similar to a breathing lamp is achieved. Moreover, the preparation method is simple and is suitable for large-scale industrial production.

In some embodiments of the present invention, the housing assembly prepared by the above method has all the features and advantages of the housing assembly described above, and thus, the description thereof is omitted.

The present invention also provides an electronic device, including: the display screen assembly, the mainboard and the shell assembly; the shell assembly is the shell assembly described above; the display screen assembly is connected with the shell assembly, and an installation space is defined between the display screen assembly and the shell assembly; the main board is arranged in the mounting space and is electrically connected with the display screen assembly; the main board comprises a controller, wherein the controller is electrically connected with the first electrode layer and the second electrode layer in the shell assembly and is used for controlling the pattern and color change of the shell assembly. Thus, the electronic device has all the features and advantages of the housing assembly described above, and thus, the description thereof is omitted. Generally speaking, the electronic equipment has the effect similar to a breathing lamp, the parts of the electronic equipment are simple in arrangement, the development trend of lightness and thinness of the electronic equipment is met, the appearance expressive force of the electronic equipment is improved, the interaction form between a user and the electronic equipment can be enriched, and the user experience is improved.

Reference numerals

FIG. 1 is a schematic view of a housing assembly according to an embodiment of the present invention;

FIG. 2 is a top view of a first electrode layer according to another embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along the direction CC' of FIG. 2;

FIG. 4 is a schematic view of a breathing light-like dynamic pattern effect of the housing assembly in accordance with one embodiment of the present invention;

FIG. 5 is a schematic view of an electronic ink layer according to an embodiment of the invention;

FIG. 6 is a schematic view of an electronic ink layer according to another embodiment of the invention;

FIG. 7 is a schematic view of a breathing light-like dynamic pattern effect of a housing assembly according to another embodiment of the present invention;

FIG. 8 is a schematic view of the light path of the housing assembly when the electronic ink layer is white in color in a direction adjacent to the outer side of the housing assembly;

FIG. 9 is a schematic diagram of the light path of the housing assembly when the color of the electronic ink layer is black in a direction near the outer side of the housing assembly;

FIG. 10 is a schematic view of a housing assembly according to another embodiment of the present invention;

FIG. 11 is a flow chart of a method of preparing a housing assembly in accordance with an embodiment of the present invention;

FIG. 12 is a flow chart of a method of preparing a first electrode layer in one embodiment of the present invention;

FIG. 13 is a flow chart of a method of preparing a first electrode layer in another embodiment of the present invention;

FIG. 14 is a flow chart of a process before and after evaporation in one embodiment of the present invention;

FIG. 15 is a flow chart of fabricating a first sub-pattern region in another embodiment of the present invention;

FIG. 16 is a flow chart of a method of preparing a first electrode layer in another embodiment of the present invention;

FIG. 17 is a flow chart of before and after etching in one embodiment of the invention;

FIG. 18 is a flow chart for preparing a second electrode layer in one embodiment of the present invention;

FIG. 19 is a flow chart of preparing a second electrode layer in another embodiment of the present invention;

fig. 20 is a schematic structural diagram of an electronic device in an embodiment of the invention.

Description of the reference numerals:

100-substrate, 200-optical coating layer, 210-primer layer, 220-first dazzling film layer, 230-second dazzling film layer, 240-third dazzling film layer, 250-fourth dazzling film layer, 300-first electrode layer, 301-first electrode material layer, 301 a-first etching area, 301B-first non-etching area, 301 c-first blank area, 302-shielding layer, 400-electronic ink layer, 410-microcapsule, 411-carbon particle, 412-electrophoretic liquid, 413-titanium oxide particle, 500-second electrode layer, 600-base material layer, 700-glue layer, 800-first support layer, 900-second support layer, 1000-first water oxygen barrier layer, 1100-second water oxygen barrier layer, 1200-bonding layer, 10-shell component, a-first pattern area, B-first non-pattern area, a '-second pattern area, and B' -second non-pattern area.

Detailed Description

Embodiments of the present application are described in detail below. The following description of the embodiments is merely exemplary in nature and is in no way intended to limit the present disclosure. The examples do not specify particular techniques or conditions, and are performed according to techniques or conditions described in literature in the art or according to the product specification. The reagents used are not indicated by manufacturers, and are all conventional products available on the market.

The existing shell assembly with the effect similar to a breathing lamp has the defects of complex arrangement of color changing assemblies, complex power transmission device, no accordance with the development trend of light weight and thinness of electronic equipment and the like.

In order to solve the above technical problems, the present invention provides a housing assembly, referring to fig. 1, the housing assembly includes a substrate 100, an optical coating layer 200, a first electrode layer 300, an electronic ink layer 400, and a second electrode layer 500. The optical coating layer 200 is arranged on one side of the substrate 100, the first electrode layer 300 is arranged on one side of the optical coating layer 200 far away from the substrate 100, the electronic ink layer 400 is arranged on one side of the first electrode layer 300 far away from the substrate 100, and the second electrode layer 500 is arranged on one side of the electronic ink layer 400 far away from the substrate 100. The first electrode layer 300 includes a first pattern region a and a first non-pattern region B, a thickness of the first electrode layer 300 of the first pattern region a is different from a thickness of the first electrode layer 300 of the first non-pattern region B, the first pattern region a includes a plurality of different first sub-pattern regions (for example, fig. 2-3 show 4 different first sub-pattern regions A1, A2, A3, and A4, where fig. 2 shows a schematic plan view of the first electrode layer, and fig. 3 shows a cross-sectional view of the first electrode layer along CC' in fig. 2), and thicknesses of the first electrode layers 300 corresponding to the plurality of different first sub-pattern regions are different. When a voltage is applied to the first electrode layer 300 and the second electrode layer 500, the electronic ink moves, and the color of the housing assembly changes. The color change time of each region of the housing assembly is related to the thickness of each region of the electrode layer. Thus, the discoloration time of the first non-pattern region B and the discoloration time of the first pattern region a can be made different by controlling the voltage, and the discoloration time of the first electrode layer 300 corresponding to a plurality of different first sub-pattern regions can be made different. The shell assembly can realize dynamic change of colors and patterns, has the effect similar to a breathing lamp, and can improve the product expressive force of the shell assembly. Moreover, the shell assembly is simple in structural design, the thickness of the shell assembly is small, the development trend of lightness and thinness of the shell assembly is met, and the appearance expressive force and the user experience of the shell assembly are improved. In addition, the electronic ink layer 400 requires less electric energy, and the response speed of the electronic ink is fast, so that the use experience of the user can be improved.

According to an embodiment of the present invention, a material forming the first electrode layer 300 and the second electrode layer 500 is Indium Tin Oxide (ITO). Indium tin oxide is a transparent conductive material, and thus, may not affect the display of the color of the electronic ink layer 400.

The discoloration time of the regions of the housing assembly of the present invention is related to the thickness of the regions of the electrode layer, as will be described in detail below. ITO is a thin film conductive material, and generally, the conductive ability of the thin film conductive material is characterized by a sheet resistance, and the larger the sheet resistance, the worse the conductive ability. The sheet resistance refers to the resistance between the edges of a square thin film conductive material, and the calculation formula of the resistance R is shown as the following formula:

R＝ρ·L/S

where ρ represents the resistivity of a substance in Ω · m; l represents the length of the measured area and has the unit of m; s represents the sectional area of the film material in the measured area and has the unit of m ² 。

Since S = W · D, where W represents the width of the measured region, in m; d represents the thickness of the measured area and has the unit of m; the width W and the length L of the square are equal, so the formula for calculating the sheet resistance R is shown as follows:

R＝ρ/D

from the above formula, the sheet resistance R of the same material is only related to the thickness D of the film-like conductive material, and the larger the thickness D, the smaller the sheet resistance R of the material.

When a voltage is applied to the upper ITO layer and the lower ITO layer of the electronic ink layer 400, the upper ITO layer and the lower ITO layer and the electronic ink layer 400 therebetween form a capacitor, a process from 0 to an input voltage across the capacitor is called a charging process of the capacitor, and a time taken for the whole process becomes a capacitor charging time. For any one capacitor system, the following relationship is present:

V _t ＝V ₀ +(V _u -V ₀ )*[1-exp(-t/RC)]

wherein V ₀ Representing an initial voltage value on the capacitor; v _u Representing the end voltage value after the capacitor is full; v _t The voltage value of two ends of the capacitor at any time t is shown; t represents the charging time, R represents the resistance of the circuit, C represents the capacitance of the capacitor system.

If the capacitor with initial voltage 0 is charged by the power supply with voltage E through resistor R, i.e. V ₀ ＝0，V _u = E, at any time t, the voltage across the capacitor is:

V _t ＝E*[1-exp(-t/RC)]

t＝RCln[E/(E-V _t )]

as can be seen from the above equation, the capacitor is charged to a certain voltage V _t The required charging time t is only related to the resistance R of the circuit and the capacitance C of the capacitor system. For the device, the electronic ink in the middle of the device is completely the same, so the capacitance of the capacitor system corresponding to different pattern areas is completely the same.

The resistance R of the conducting circuit is only related to the ITO sheet resistance of each area, the ITO sheet resistance is related to the thickness of the ITO layer, and the resistance of the area is smaller when the thickness of the electrode layer is larger.

As can be seen from the above formula, the charging time of each region has the same trend as the change trend of the resistance of each region, that is, the larger the resistance of a certain region of the electrode layer is, the longer the charging time of the region is; the smaller the resistance of a certain region of the electrode layer, the shorter the charging time of the region.

The electronic ink has the characteristic that the color can be changed rapidly only when the voltage on two sides reaches the driving voltage, and the color is changed slowly when the voltage does not reach the driving voltage, so that the color change is ignored. Therefore, the color change time of each area of the device has the same change trend with the charge time of each area, namely the longer the charge time of each area is, the longer the color change time is; the shorter the charging time of each region, the shorter the discoloration time.

The discoloration time of the housing component of the invention is therefore dependent on the thickness of the regions of the electrode layer. The external voltage is designed to be changed periodically, when the period of the external voltage is larger than or equal to the color change time corresponding to the region with the minimum thickness, the polarity of the voltage is changed every other period of time, in one period, the color and the pattern of the shell component can be similar to those of a breathing lamp and are changed dynamically in sequence, the shell component has the dynamic pattern change effect similar to that of the breathing lamp, the appearance expression of a product can be improved, and the use experience of a user is improved.

According to an embodiment of the present invention, referring to fig. 1, the second electrode layer 500 includes a second pattern region a 'and a second non-pattern region B', an orthographic projection of the first non-pattern region B on the substrate 100 overlaps an orthographic projection of the second non-pattern region B 'on the substrate 100, and a thickness of the first electrode layer 300 of the first non-pattern region B is equal to a thickness of the second electrode layer 500 of the second non-pattern region B'. The orthographic projection of the first pattern area A on the substrate 100 is overlapped with the orthographic projection of the second pattern area A 'on the substrate 100, and the thickness of the first electrode layer 300 of the first pattern area A is equal to that of the second electrode layer 500 of the second pattern area A'. Since the color changing time of the housing assembly is related to the thickness of each area of the electrode layer, the thicknesses of the first electrode layer 300 and the second electrode layer 500 positioned at opposite sides of the electronic ink layer 400 in the direction perpendicular to the plane of the substrate 100 are equal, so that the first pattern area a of the first electrode layer 300 and the second pattern area a' of the second electrode layer 500 can change color simultaneously, and the pattern and color change of the housing assembly can be better controlled.

Further, the thickness of the second electrode layer 500 of the second pattern region a 'and the thickness of the second electrode layer 500 of the second non-pattern region B' are not equal, and thus, the color change time of the second non-pattern region B 'is different from that of the second pattern region a'.

In other embodiments of the present invention, the thickness of the first electrode layer 300 may vary according to the rules described above, and the second electrode layer 500 may be blanket, i.e., the thickness of each region in the second electrode layer 500 is uniform. Alternatively, the first electrode layer 300 is uniform, that is, the thickness of each region in the first electrode layer 300 is uniform, and the thickness of the second electrode layer 500 varies according to the thickness rule of the first electrode layer 300.

According to an embodiment of the present invention, the second pattern region a ' includes a plurality of different second sub-pattern regions (e.g., A1', A2', A3', A4' in fig. 3), the second electrode layers 500 corresponding to the plurality of different second sub-pattern regions have different thicknesses, and the first electrode layer 300 of the first sub-pattern region and the second electrode layer 500 of the second sub-pattern region, whose orthographic projections on the substrate 100 overlap each other, have the same thickness. Therefore, the first sub-pattern region of the first electrode layer 300 and the second sub-pattern region of the second electrode layer 500 can change color simultaneously, and the color change time of the second electrode layer 500 corresponding to a plurality of different second sub-pattern regions is different, so that the housing assembly has richer patterns and color change effects and has the effect similar to a breathing lamp.

According to the embodiment of the invention, the invention has no special requirements on the shapes and the numbers of the first pattern area a and the second pattern area a ', and a person skilled in the art can flexibly design according to actual design requirements, and the shapes and the numbers of the first pattern area a and the second pattern area a ' can be the same or different, for example, the shapes of the first pattern area a and the second pattern area a ' respectively include but are not limited to shapes such as a five-pointed star, a quadrangle, a triangle, a moon figure, a circle, an ellipse, an animal figure and the like. Further, when the first pattern region a includes a plurality of different first sub-pattern regions and the second pattern region a' includes a plurality of different second sub-pattern regions, the shapes and the numbers of the first sub-pattern regions and the second sub-pattern regions still have no special requirement, for example, the shapes of the first sub-pattern regions and the second sub-pattern regions respectively include, but are not limited to, a pentagram, a quadrangle, a triangle, a moon pattern, a circle, an ellipse, an animal pattern, and the like. In addition, the shapes of the plurality of first sub-pattern regions may be the same or different, and the shapes of the plurality of second sub-pattern regions may be the same or different, which is not limited herein.

According to an embodiment of the present invention, the first sub-pattern region may include a plurality of first sub-pattern regions, the first electrode layer 300 of the plurality of first sub-pattern regions has the same thickness, and, taking fig. 2 as an example, the first pattern region a includes four first sub-pattern regions A1, A2, A3, A4, wherein each of the first sub-pattern regions includes three first sub-pattern regions, and the shape and pattern size of each of the first sub-pattern regions are the same. The second sub-pattern region may include a plurality of second sub-pattern regions, and the thicknesses of the second electrode layers 500 of the plurality of second sub-pattern regions are the same. The number of the first sub-pattern region and the second sub-pattern region is not limited, and the skilled person can select the first sub-pattern region and the second sub-pattern region according to the use requirement. In addition, the shapes of the plurality of first sub-pattern regions may be the same or different, as long as the thicknesses of the first electrode layers 300 of the plurality of first sub-pattern regions are uniform and color change is performed at the same time. Similarly, the shapes of the plurality of second sub-pattern regions may be the same or different, as long as the second electrode layers 500 of the plurality of second sub-pattern regions have the same thickness and change color at the same time.

According to the embodiment of the present invention, as shown in fig. 2 and 3, in the first direction, the thicknesses of the first electrode layers 300 corresponding to the plurality of different first sub-pattern regions (A1, A2, A3, A4) are gradually increased or decreased (the thicknesses are gradually decreased in fig. 2 and 3 as an example), and the thicknesses of the second electrode layers 500 corresponding to the plurality of different second sub-pattern regions (A1 ', A2', A3', A4') are gradually increased or decreased (the thicknesses are gradually decreased in fig. 3 as an example). The "first direction" refers to any direction on the housing assembly, and may be, for example, a linear direction or a curved direction, such as a linear direction parallel to or perpendicular to a certain frame of the housing assembly, or a linear direction having any angle with respect to the frame of the housing assembly, and may also be an arc direction, an S-shaped curved direction, or the like on the housing assembly. Therefore, the color changing time of the first electrode layer 300 corresponding to the plurality of different first sub-pattern regions is gradually increased or decreased, the color changing time of the second electrode layer 500 corresponding to the plurality of different second sub-pattern regions is gradually increased or decreased, the color changing time of the housing assembly pattern region is gradually changed, and the patterns and colors of the housing assembly are gradually changed, so that the effect similar to a breathing lamp is achieved.

According to an embodiment of the present invention, the thickness of the first electrode layer 300 of the first non-pattern region B and the thickness of the first electrode layer 300 of the plurality of first sub-pattern regions, and the thickness of the second electrode layer 500 of the second non-pattern region B' and the thickness of the second electrode layer 500 of the plurality of second sub-pattern regions satisfy any one of the following conditions: the thickness of the first electrode layer 300 of the first non-pattern region B is greater than the maximum value of the thicknesses of the first electrode layers 300 of the plurality of first sub-pattern regions, and the thickness of the second electrode layer 500 of the second non-pattern region B' is greater than the maximum value of the thicknesses of the second electrode layers 500 of the plurality of second sub-pattern regions; the first electrode layer 300 thickness of the first non-pattern region B is less than the minimum value of the first electrode layer 300 thicknesses of the plurality of first sub-pattern regions, and the second electrode layer 500 thickness of the second non-pattern region B' is less than the minimum value of the second electrode layer 500 thicknesses of the plurality of second sub-pattern regions. Under the condition that the thickness of the first electrode layer 300 of the first non-pattern region B is greater than the maximum value of the thicknesses of the first electrode layers 300 of the plurality of first sub-pattern regions, and the thickness of the second electrode layer 500 of the second non-pattern region B 'is greater than the maximum value of the thicknesses of the second electrode layers 500 of the plurality of second sub-pattern regions, when a voltage is applied to the first electrode layer 300 and the second electrode layer 500, the first non-pattern region B and the second non-pattern region B' having the largest thicknesses begin to change color first, the color change time of the plurality of first sub-pattern regions and the plurality of second sub-pattern regions gradually changes, the plurality of first sub-pattern regions and the plurality of second sub-pattern regions gradually begin to change color, and the effect similar to a breathing lamp appears. Or, in the case that the thickness of the first electrode layer 300 of the first non-pattern region B is less than the minimum value of the thicknesses of the first electrode layers 300 of the plurality of first sub-pattern regions, and the thickness of the second electrode layer 500 of the second non-pattern region B 'is less than the minimum value of the thicknesses of the second electrode layers 500 of the plurality of second sub-pattern regions, the color change time of the first non-pattern region B and the second non-pattern region B' having the smallest thicknesses is longest, that is, the first non-pattern region B and the second non-pattern region B 'change colors at the latest, when a voltage is applied to the first electrode layer 300 and the second electrode layer 500, the plurality of first sub-pattern regions and the plurality of second sub-pattern regions change colors gradually, and the first non-pattern region B and the second non-pattern region B' change colors last, having an effect similar to a breathing lamp.

According to an embodiment of the present invention, referring to fig. 2-3, the first electrode layer 300 includes a first pattern region a and a first non-pattern region B, the first pattern region a includes 4 first sub-pattern regions A1, A2, A3, A4, wherein each of the first sub-pattern regions includes 3 first sub-pattern regions, the shape and size of the 3 first sub-pattern regions are the same, and the thickness of the corresponding first electrode layer 300 is the same. The thickness of the first non-pattern region B is greater than that of the first pattern region a. The thickness of the first sub-pattern region gradually changes in the CC' direction shown in fig. 2. The first sub-pattern region and the first sub-pattern region are both shaped like a five-pointed star. Thickness (D) of the first non-pattern region B _B ) And the thickness (D) of the first sub-pattern regions A1, A2, A3, A4 _A1 、D _A2 、D _A3 、D _A4 ) The relationship between them is: d _B >D _A1 >D _A2 >D _A3 >D _A4 。

The resistance of the material corresponding to each region is: r _A4 >R _A3 >R _A2 >R _A1 >R _B 。

The capacitance of the capacitor system is the same for each zone, i.e.: c _B ＝C _A1 ＝C _A2 ＝C _A3 ＝C _A4 。

The charging time of each region has the following relationship: t is t _A4 >t _A3 >t _A2 >t _A1 >t _B 。

The color change time corresponding to each area of the device is as follows: t is _A4 >T _A3 >T _A2 >T _A1 >T _B 。

The thickness of the second electrode layer 500 has the same variation tendency as that of the first electrode layer 300. When a voltage is applied to the first electrode layer 300 and the second electrode layer 500 positioned at opposite sides of the electronic ink layer 400, the dynamic effect of the housing assembly is first shown in fig. 4, with a time T elapsed _B Then, the first non-pattern area B will change color first, and the color of the first pattern area A will not change. Then when the power-on time reaches T _A1 When this occurs, the first sub-pattern region A1 is discolored. When the power-on time reaches T _A2 When this occurs, the first sub-pattern region A2 is discolored. When the power-on time reaches T _A3 When this occurs, the first sub-pattern region A3 is discolored. Until the power-on time reaches T _A4 Thereafter, the first sub-pattern region A4 is discolored, and the entire first electrode layer 300 is the same color at this time. When the period of the external voltage is more than or equal to T _A4 The polarity of the voltage is changed at intervals of a cycle, and the color and pattern of the shell assembly are changed dynamically in sequence like a breathing lamp during a cycle.

According to an embodiment of the present invention, referring to fig. 5 and 6, a material forming the electronic ink layer 400 includes a microcapsule 410, and the microcapsule 410 encapsulates positively charged white titanium oxide particles 413, negatively charged black carbon particles 411, and an electrophoretic fluid 412 therein. The electronic ink layer 400 is formed from a series of microcapsules 410. One of the first electrode layer 300 and the second electrode layer 500 is adjacent to an outer side of the case assembly, and the other electrode layer is adjacent to an inner side of the case assembly, wherein the outer side of the case assembly refers to a side where a user can observe a color, and the inner side of the case assembly refers to a side facing the display screen, and the color of the side is not observed by the user after the electronic device is assembled. When a voltage is applied to the first electrode layer 300 and the second electrode layer 500, the positively charged particles and the negatively charged particles inside the microcapsules 410 are directionally moved by an electric field, and referring to fig. 5, when the negatively charged black carbon particles 411 are gathered to the outside of the housing assembly, the outside of the housing assembly shows a black color. Referring to fig. 6, when the positively charged white titanium oxide particles 413 are gathered toward the outside of the housing assembly, the outside of the housing assembly exhibits a color of white. Under the condition that the voltage is different or the power-on time is different, the gray scales of the outer side colors of the shell assembly are different, and the colors with different gray scales can be obtained by controlling different voltages or charging times.

In one embodiment of the present invention, the pattern effect of changing the outer color of the housing assembly from white to black is shown in fig. 4, the pattern effect of changing the outer color of the housing assembly from black to white is shown in fig. 7, the applied voltage is designed to be periodically changed, and the period of the voltage is greater than or equal to T _A4 Then, the color pattern of the housing assembly will continuously change according to the effect cycle of fig. 4 and fig. 7, and the pattern and color of the housing assembly will change dynamically in turn, having the effect similar to a breathing lamp.

According to an embodiment of the present invention, the optical coating layer 200 includes a plurality of sub-coating layers arranged in a stacked manner, and the materials of two sub-coating layers arranged adjacently are different. Therefore, the optical coating layer 200 can make the shell assembly have a more colorful appearance effect.

According to an embodiment of the present invention, referring to fig. 8 and 9, the housing assembly further includes a substrate layer 600, and the substrate layer 600 is disposed on a surface of the optical coating layer 200 away from the substrate 100, that is, the optical coating layer 200 is disposed on the substrate layer 600. The material forming the base material layer 600 may be polyethylene terephthalate. According to the embodiment of the invention, the optical coating layer 200 includes a plurality of sub-coating layers arranged in a stacked manner, and the materials of two sub-coating layers arranged adjacently are different. Specifically, referring to fig. 8 and 9, the optical coating layer 200 includes a primer layer 210, a first colorful film layer 220, a second colorful film layer 230, a third colorful film layer 240 and a fourth colorful film layer 250, which are sequentially stacked, and the primer layer 210 may improve the adhesion of the coating film. The material forming the primer layer 210 may be zirconia, the materials forming the first and third glare film layers 220 and 240 may be niobium oxide, and the materials forming the second and fourth glare film layers 230 and 250 may be silicon dioxide. Because the film layers with different thicknesses and different materials have different reflection and transmission effects on light with different wavelengths, different colors can be realized by controlling the thickness design of each film layer in the optical coating layer 200. The invention is not limited to the thickness of each layer of the optical coating layer 200, and the skilled person can select the thickness according to the use requirement.

Meanwhile, the color of the housing component is related to the color of the optical coating layer 200 and the color of the electronic ink layer 400 in the direction close to the outer side of the housing component. The electronic ink layer 400 can generate black-white color conversion under the action of an electric field, and the optical coating layer 200 respectively displays different colors under black and white substrates. Referring to fig. 8, when the color of the electronic ink layer 400 near the outer side of the housing assembly is white, the incident light will be completely reflected by the electronic ink layer 400 after passing through the optical coating layer 200, and the final emergent light is the light reflected by the electronic ink layer 400 and the reflected light of each film layer of the optical coating layer 200 are mutually overlapped to form the final color. Referring to fig. 9, when the color of the electronic ink layer 400 near the outer side of the housing assembly is black, the incident light will be completely absorbed by the electronic ink layer 400 after passing through the optical coating layer 200, and the final emergent light only has the reflected light of each layer of the optical coating layer 200 superimposed on each other to form the final color. The color of the optical coating layer 200 under the black and white cover bottom is the complementary color of the optical coating.

According to an embodiment of the present invention, referring to fig. 10, an orthographic area of the electronic ink layer 400 on the first electrode layer 300 is smaller than an area of the first electrode layer 300. The housing assembly further includes a glue layer 700, wherein the glue layer 700 is located between the first electrode layer 300 and the second electrode layer 500, and the glue layer 700 is used for encapsulating the side of the electronic ink layer 400. Therefore, the glue layer 700 can protect the side of the electronic ink layer 400, prevent water and oxygen from entering the electronic ink layer 400 from the side of the electronic ink layer 400, and prevent the water and oxygen from entering the electronic ink layer 400 to affect the color development of the housing assembly.

Referring to fig. 10, the housing assembly further includes a first support layer 800, a second support layer 900, a first water oxygen barrier layer 1000, and a second water oxygen barrier layer 1100 according to an embodiment of the present invention. The first supporting layer 800 is located on a side of the first electrode layer 300 away from the electronic ink layer 400, the second supporting layer 900 is located on a side of the second electrode layer 500 away from the electronic ink layer 400, the first water and oxygen barrier layer 1000 is located on a side of the first supporting layer 800 away from the electronic ink layer 400, and the second water and oxygen barrier layer 1100 is located on a side of the second supporting layer 900 away from the electronic ink layer 400. The first and second support layers 800 and 900 may function as support electrode layers. The material forming the first and second support layers 800 and 900 may be polyethylene terephthalate. First water oxygen barrier layer 1000 and second water oxygen barrier layer 1100 are located the relative both sides of electron ink layer 400, and first water oxygen barrier layer 1000 and second water oxygen barrier layer 1100 can prevent that water oxygen from getting into electron ink layer 400 from the upside or the downside of electron ink layer 400, have avoided water oxygen to get into the inside of electron ink layer 400 and influence the color development of casing subassembly.

According to an embodiment of the invention, referring to fig. 10, the housing assembly further comprises a bonding layer 1200. The bonding layer 1200 is located between the optical coating layer 200 and the substrate 100. The bonding layer 1200 can tightly bond the substrate 100 and the optical coating layer 200. The material forming the bonding layer 1200 is an optical glue.

According to an embodiment of the present invention, the side of the substrate 100 away from the bonding layer 1200 is the outside of the housing assembly, which is the side that can be viewed by a user after assembling the housing assembly to an electronic device. According to an embodiment of the present invention, the substrate 100 is a light-transmissive material, such as glass.

The present invention also provides a method of making a housing assembly, with reference to fig. 11, the method comprising:

s100, forming a first electrode layer 300 and a second electrode layer 500, wherein the first electrode layer 300 and the second electrode layer 500 are opposite and spaced;

according to an embodiment of the present invention, referring to fig. 12 and 13, the step of forming the first electrode layer 300 includes:

s110, forming a first electrode material layer 301 with a uniform thickness on one side of the first support layer 800, and dividing the first electrode material layer 301 into a first etching region 301a and a first non-etching region 301b, wherein the first etching region 301a includes a plurality of first sub-etching regions;

according to an embodiment of the present invention, the first electrode material layer 301 may be an Indium Tin Oxide (ITO) layer. The specific thickness of the first electrode material layer 301 is not limited in the present invention, and can be adjusted by a skilled person according to the use requirement.

S120, shielding the first non-etching area 301b, etching the first etching area 301a, and removing the first electrode material layer 301 of the first etching area 301a to obtain a first blank area 301c, wherein the first blank area 301c comprises a plurality of first sub-blank areas;

in this step, the first electrode material in the first etching region 301a may be removed by an etching process to obtain a first blank region 301c, where the first etching region 301a includes a plurality of first sub-etching regions, and the plurality of first sub-blank regions are obtained by etching. After this step, the thickness of the first electrode material layer 301 of the first etching region 301a is 0. The shapes of the first etching region 301a and the first non-etching region 301b are not limited by the present invention, and can be selected by a skilled person according to the use requirement.

According to some embodiments of the invention, etching comprises exposing, developing, and etching. Specifically, a dry film is laminated on the first electrode material layer 301, and the dry film can be used as a medium for image transfer, and the dry film has an image corresponding to the pattern. The light irradiates the dry film to make the dry film generate a series of chemical reactions, thereby achieving the image transfer effect. By developing, the unpolymerized dry film portion can be removed, and the exposed portion can be remained, so that the dry film portion can be etched according to the pattern during etching. Etching may remove structures that are not protected by the film. The designed pattern can be etched out by pressing a dry film, exposing, developing and etching. After the etching step, the method further comprises the steps of stripping, infrared baking, coating a protective film and the like.

S130, evaporating a conductive material on the first blank area 301c by adopting a shielding film coating process, wherein the thicknesses of the conductive material evaporated in the plurality of first blank sub-areas are different, and obtaining the first electrode layer 300 with the first pattern area A and the first non-pattern area B.

In this step, the conductive material is the same as the first electrode material, for example, ITO. The thickness of the evaporated conductive material is different from the thickness of the first electrode material layer 301. Referring to fig. 14, a shielding layer 302 is formed in a first non-etching region 301b of the first electrode material layer 301, the side of the first non-etching region 301b is away from the first supporting layer 800, a portion of the first electrode material layer 301 that is not shielded by the shielding layer 302 is etched to obtain a first blank region 301c, and then a shielding coating process is used to deposit a conductive material on the first blank region 301c to obtain a first pattern region a. The present invention is not limited to the material forming the masking layer 302, and examples include but are not limited to film or other mask. The coating method is not limited in the present invention, and for example, the coating method may be a sputtering coating method or an evaporation coating method.

According to an embodiment of the invention, the first etching region 301a includes a plurality of first sub-etching regions, a plurality of first sub-blank regions are obtained by etching, and a first pattern region a having a plurality of first sub-pattern regions can be obtained by evaporating conductive materials with different thicknesses in different first sub-blank regions. As shown in fig. 2, the obtained first pattern region a includes a plurality of different first sub-pattern regions (for example, fig. 2 shows 4 different first sub-pattern regions A1, A2, A3, A4, where fig. 2 only shows a top view of the first electrode layer 300), and the thicknesses of the first electrode layers 300 corresponding to the plurality of different first sub-pattern regions are different.

Further, the first sub-etching region includes a plurality of first sub-etching regions, and the thicknesses of the first electrode material layers 301 of the plurality of first sub-etching regions are the same, that is, the first sub-pattern region including the plurality of first sub-pattern regions is obtained, such that the shapes and the pattern sizes of the plurality of first sub-pattern regions are the same, and the thicknesses of the first electrode layers 300 of the plurality of first sub-pattern regions are the same, taking fig. 2 as an example, the first pattern region a includes four first sub-pattern regions A1, A2, A3, and A4, where each first sub-pattern region includes three first sub-pattern regions.

Referring to fig. 15, a first sub-pattern region including a plurality of first sub-pattern regions having the same thickness may be formed through one mask plating process. The electrode material layers of different first sub-pattern regions have different thicknesses, and a plurality of first sub-pattern regions with different thicknesses can be formed through a plurality of times of shielding coating processes. Certainly, when a first blank region is formed by evaporation to form a first sub-pattern region, other first blank regions or regions of the formed first sub-pattern region still need to be shielded, so as to obtain the first electrode layer 300 having the first pattern region a and the first non-pattern region B.

Referring to fig. 16, the step of forming the first electrode layer 300 includes:

s110, forming a first electrode material layer 301 with a uniform thickness on one side of a first supporting layer 800, and dividing the first electrode material layer 301 into a first etching region 301a and a first non-etching region 301b, wherein the first etching region 301a includes a plurality of first sub-etching regions;

S140, etching the first etching region 301a of the first electrode material layer 301, and by controlling the etching degree, etching and thinning the first electrode material layer 301 of the first etching region 301a, wherein the etching degrees of a plurality of different first sub-etching regions are different, thereby obtaining the first electrode layer 300 having the first pattern region a and the first non-pattern region B.

According to the embodiment of the invention, in the first direction, the thicknesses of the first electrode material layers 301 corresponding to the plurality of different first sub-etching regions are gradually increased or decreased. The etching depth of the electrode material layer is related to the etching degree. Referring to fig. 17, the first electrode layer 300 having the first pattern region a and the first non-pattern region B may be obtained by controlling the degree of etching, etching a plurality of first sub-etching regions having the same thickness at one time to have the same degree of etching, and etching first sub-etching regions having different thicknesses to have different degrees of etching, respectively.

According to an embodiment of the present invention, referring to fig. 18, the step of forming the second electrode layer 500 includes:

s150, forming a second electrode material layer with a uniform thickness on one side of the second support layer 900, and dividing the second electrode material layer into a second etching region and a second non-etching region, wherein the second etching region includes a plurality of second sub-etching regions;

according to an embodiment of the present invention, the second electrode material layer may be an Indium Tin Oxide (ITO) layer. The specific thickness of the second electrode material layer is not limited in the present invention, and can be adjusted by a skilled person according to the use requirement.

S160, shielding the second non-etching area, etching the second etching area, and removing the second electrode material layer of the second etching area to obtain a second blank area, wherein the second blank area comprises a plurality of second sub blank areas;

in this step, the second electrode material in the second etching region may be removed by an etching process to obtain a second blank region, where the second etching region includes a plurality of second sub-etching regions, and the second sub-blank regions are obtained by etching. That is, after step S160, the thickness of the second electrode material layer in the second etching region is 0. The shapes of the second etching area and the second non-etching area are not limited, and technicians can select the shapes according to use requirements.

S170, evaporating a conductive material on the second blank area by adopting a shielding film coating process, wherein the thicknesses of the conductive material evaporated in the plurality of second sub-blank areas are different, and thus the second electrode layer 500 with the second pattern area A 'and the second non-pattern area B' is obtained.

In this step, the thickness of the evaporated conductive material is different from the thickness of the second electrode material layer. The second etching area comprises a plurality of second sub-etching areas, a plurality of second sub-blank areas are obtained by etching, conductive materials with different thicknesses are evaporated in the different second sub-blank areas, and a second pattern area A' with a plurality of second sub-pattern areas is obtained.

As shown in fig. 3, the second pattern region a ' includes a plurality of different second sub-pattern regions (A1 ', A2', A3', A4 '), the thicknesses of the second electrode layers 500 corresponding to the plurality of different second sub-pattern regions (A1 ', A2', A3', A4 ') are different, and the thicknesses of the first electrode layers 300 of the first sub-pattern regions (A1, A2, A3, A4) and the second electrode layers 500 of the second sub-pattern regions (A1 ', A2', A3', A4 ') which are orthographically projected on the substrate 100 and overlap each other are the same.

Further, the second sub-etching region includes a plurality of second sub-etching regions, and the thicknesses of the second electrode material layers of the plurality of second sub-etching regions are the same, that is, the second sub-pattern region including the plurality of second sub-pattern regions is obtained, so that each second sub-pattern region may include a plurality of second sub-pattern regions, where the thicknesses of the second electrode layers 500 of the plurality of second sub-pattern regions are the same. Taking fig. 2 and 3 as an example, the second pattern region a ' includes four second sub-pattern regions A1', A2', A3', A4', each of which includes three second sub-pattern regions, and the second electrode layer 500 of the three second sub-pattern regions has the same thickness.

Wherein, a second sub-pattern region including a plurality of second sub-pattern regions having the same thickness may be formed through one mask plating process. The thicknesses of the second electrode material layers of different second sub-pattern regions are different, and a plurality of second sub-pattern regions with different thicknesses can be formed through a plurality of times of shielding coating processes. Of course, when a second blank region is formed by evaporation on a second blank region, other second blank regions or already formed second sub-pattern regions still need to be masked, so as to obtain the second electrode layer 500 having the second pattern region a 'and the second non-pattern region B'.

According to further embodiments of the present invention, referring to fig. 19, the step of forming the second electrode layer 500 includes:

s150, forming a second electrode material layer with a uniform thickness on one side of the second support layer 900, and dividing the second electrode material layer into a second etching area and a second non-etching area, wherein the second etching area includes a plurality of second sub-etching areas;

according to an embodiment of the present invention, the second electrode material layer may be an Indium Tin Oxide (ITO) layer. The specific thickness of the second electrode material layer is not limited by the present invention, and can be adjusted by a skilled person according to the use requirement.

And S180, etching the second etching area of the second electrode material layer, and etching and thinning the second electrode material layer of the second etching area by controlling the etching degree, wherein the etching degrees of a plurality of different second sub-etching areas are different, so that the second electrode layer 500 with the second pattern area A 'and the second non-pattern area B' is obtained.

According to the embodiment of the invention, in the first direction, the thicknesses of the second electrode material layers corresponding to the plurality of different second sub-etching regions are gradually increased or decreased. The etching depth of the second electrode material layer is related to the etching degree. The etching degree may be controlled by controlling etching conditions such as etching time, etching rate, etc., a plurality of second sub-etching regions having the same thickness are etched at one time to have the same etching degree, and second sub-etching regions having different thicknesses are etched to have different etching degrees, respectively, thereby obtaining the second electrode layer 500 having the second pattern region a 'and the second non-pattern region B'.

S200, injecting electronic ink into a gap between the first electrode layer 300 and the second electrode layer 500 to form an electronic ink layer 400;

under the action of the electric field, the particles in the electronic ink layer 400 are directionally moved, thereby displaying different colors on the outside of the housing component. The electronic ink layer 400 has the same structure as the electronic ink layer 400 described above, and thus the description thereof is omitted.

S300, forming an optical coating layer 200 on one side of the first electrode layer 300 far away from the electronic ink layer 400;

in this step, the optical coating layer 200 includes a plurality of sub-coating layers stacked one on another, and the materials of two sub-coating layers adjacent to each other are different. Therefore, the optical coating layer 200 can make the shell assembly have a more colorful appearance effect. The method of preparing the optical coating layer 200 is not limited in the present invention, and for example, the optical coating layer 200 may be prepared by sequentially coating the coating raw materials on the substrate layer 600 by a sputtering coating process or an evaporation coating process.

S400, attaching the side, far away from the electronic ink layer 400, of the optical coating layer 200 to the substrate 100;

in this step, the substrate 100 may provide support for the housing assembly, may also protect the layered structure on one side of the substrate 100, and may also transmit light without affecting the color exhibited by the housing assembly.

The first electrode layer 300 includes a first pattern region a and a first non-pattern region B, and the thickness of the first electrode layer 300 in the first pattern region a is different from the thickness of the first electrode layer 300 in the first non-pattern region B. The first pattern region a includes a plurality of different first sub-pattern regions (e.g., A1, A2, A3, A4), and the first electrode layer 300 has different thicknesses corresponding to the plurality of different first sub-pattern regions. Thus, when a voltage is applied to the first electrode layer 300 and the second electrode layer 500, the first pattern region a and the first non-pattern region B are different in color-changing time, and the plurality of first sub-pattern regions are different in color-changing time, dynamic change of patterns and colors can be achieved, having an effect similar to a breathing lamp. Moreover, the preparation method is simple and is suitable for large-scale industrial production.

According to some embodiments of the present invention, the method of preparing the case assembly further includes the steps of, for example, forming the first electrode layer 300 on one side of the first support layer 800; forming a second electrode layer 500 at one side of the second support layer 900; injecting electronic ink between the first electrode layer 300 and the second electrode layer 500 to form an electronic ink layer 400, coating a glue layer 700 around the electronic ink layer 400 not covered by the first electrode layer 300 and the second electrode layer 500 to encapsulate the side of the electronic ink layer 400, and forming a structure in which a first support layer 800, the first electrode layer 300, the electronic ink layer 400, the second electrode layer 500, and a second support layer 900 are sequentially stacked; forming a first water and oxygen barrier layer 1000 on one side close to the first support layer 800 in a structure in which the first support layer 800, the first electrode layer 300, the electronic ink layer 400, the second electrode layer 500, and the second support layer 900 are sequentially stacked, and forming a structure in which the first water and oxygen barrier layer 1000, the first support layer 800, the first electrode layer 300, the electronic ink layer 400, the second electrode layer 500, and the second support layer 900 are sequentially stacked; forming a second water and oxygen barrier layer 1100 on one side close to the second support layer 900 in a structure in which the first water and oxygen barrier layer 1000, the first support layer 800, the first electrode layer 300, the electronic ink layer 400, the second electrode layer 500, and the second support layer 900 are sequentially stacked, to form a structure in which the first water and oxygen barrier layer 1000, the first support layer 800, the first electrode layer 300, the electronic ink layer 400, the second electrode layer 500, the second support layer 900, and the second water and oxygen barrier layer 1100 are sequentially stacked; forming an optical coating layer 200 on one side of the substrate layer 600, and forming a structure in which the optical coating layer 200 and the substrate layer 600 are sequentially laminated; laminating a structure in which an optical coating layer 200 and a substrate layer 600 are sequentially laminated on one side close to a first water oxygen barrier layer 1000 in a structure in which the first water oxygen barrier layer 1000, a first support layer 800, a first electrode layer 300, an electronic ink layer 400, a second electrode layer 500, a second support layer 900 and a second water oxygen barrier layer 1100 are sequentially laminated, so that the substrate layer 600 is in contact with the first water oxygen barrier layer 1000 to form a structure in which the optical coating layer 200, the substrate layer 600, the first water oxygen barrier layer 1000, the first support layer 800, the first electrode layer 300, the electronic ink layer 400, the second electrode layer 500, the second support layer 900 and the second water oxygen barrier layer 1100 are sequentially laminated; the optical coating layer 200, the substrate layer 600, the first water oxygen barrier layer 1000, the first support layer 800, the first electrode layer 300, the electronic ink layer 400, the second electrode layer 500, the second support layer 900 and the second water oxygen barrier layer 1100 are laminated in sequence, and the adhesive layer 1200 is attached to the substrate 100 through the adhesive layer 1200, so that the adhesive layer 1200 is formed on one side of the optical coating layer 200 away from the substrate layer 600, and the structure that the substrate 100, the adhesive layer 1200, the optical coating layer 200, the substrate layer 600, the first water oxygen barrier layer 1000, the first support layer 800, the first electrode layer 300, the electronic ink layer 400, the second electrode layer 500, the second support layer 900 and the second water oxygen barrier layer 1100 are laminated in sequence is formed, and the shell assembly is obtained.

The present invention also provides an electronic device, and referring to fig. 20, the electronic device includes: display screen subassembly, mainboard and casing subassembly 10, casing subassembly 10 is the casing subassembly aforementioned, and display screen subassembly 20 links to each other with casing subassembly 10, prescribes a limit to installation space between display screen subassembly and the casing subassembly 10, and the mainboard is established in installation space and is connected with the display screen subassembly electricity, the mainboard includes the controller, the controller is connected with first electrode layer 300 in the casing subassembly 10 and second electrode layer 500 electricity, and is used for controlling casing subassembly's pattern and color change. Thus, the electronic device has all the features and advantages of the housing assembly described above, and thus, the description thereof is omitted. Generally speaking, the electronic equipment has the effect similar to a breathing lamp, the components of the electronic equipment are simple in arrangement, the development trend of lightness and thinness of the electronic equipment is met, and the appearance expressive force and the human-computer interaction experience of the electronic equipment are improved.

According to the embodiment of the invention, the controller may control a voltage between the first electrode layer 300 and the second electrode layer 500, under the action of the voltage, the electronic ink layer 400 gradually changes from a first color to a second color, and simultaneously, under the combined action of the electronic ink layer 400 and the optical coating layer 200, the appearance colors of the housing components corresponding to the first pattern region a and the first non-pattern region B respectively change. Therefore, the color changing time of the shell assembly corresponding to the first pattern area A and the first non-pattern area B is different, and the appearance color of the shell assembly is dynamically changed at different time, so that the effect similar to a breathing lamp is achieved.

According to the embodiment of the invention, in the first direction, the appearance colors of the shell assemblies respectively corresponding to the plurality of different first sub-pattern regions are sequentially changed. Therefore, the patterns and colors of the shell components dynamically change at different moments, and the effect similar to that of a breathing lamp is achieved.

According to the embodiment of the present invention, as shown in fig. 2 and 3, in the first direction, the thicknesses of the first electrode layers 300 corresponding to a plurality of different first sub-pattern regions are gradually increased or decreased (the gradual decrease is taken as an example in fig. 2 and 3), and the thicknesses of the second electrode layers 500 corresponding to a plurality of different second sub-pattern regions (A1 ', A2', A3', A4') are gradually increased or decreased (the gradual decrease is taken as an example in fig. 3); in the first direction, appearance colors of the shell assemblies respectively corresponding to the plurality of different first sub-pattern regions are sequentially changed. Therefore, the electronic equipment has the effect that patterns and colors are sequentially and dynamically changed, and has the effect similar to a breathing lamp.

The specific type of electronic device is not particularly limited by the present application and, for example, the electronic device may be a cell phone, a smart watch, a palm top computer, a notebook computer, a laptop computer, a desktop computer, a portable gaming device, a video recorder, a camera, a pager, or a printer, among others. In particular, the electronic device may be a mobile or smart phone (e.g., an iPhone (TM) based, android (TM) based phone), a Portable gaming device (e.g., a Nintendo DS (TM), a PlayStation Portable (TM), a Game Advance (TM), an iPhone (TM)), a PDA, a Portable Internet device, a music player and data storage device, other handheld devices and headsets such as watches, earphones, pendant, headphones, etc., and other wearable devices (e.g., a Head Mounted Device (HMD) such as electronic glasses, electronic clothing, electronic bracelets, electronic necklaces, electronic tattoos, or smartwatches).

The embodiments of the present application have been described in detail, but the present application is not limited to the details of the above embodiments, and various simple modifications can be made to the technical solution of the present application within the technical idea of the present application, and the simple modifications belong to the protection scope of the present application. It should be noted that the various features described in the foregoing embodiments may be combined in any suitable manner without contradiction.

It should be noted that the terms "first", "second", "third" and "fourth" in this specification are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. In the description of the present application, the terms "upper", "lower", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the present application but do not require that the present application must be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application.

In the description of the present specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present application, and that variations, modifications, substitutions and alterations may be made to the above embodiments by those of ordinary skill in the art within the scope of the present application.

Claims

1. A housing assembly, comprising:

a substrate;

the optical coating layer is arranged on one side of the substrate;

the first electrode layer is arranged on one side of the optical coating layer, which is far away from the substrate;

the electronic ink layer is arranged on one side, far away from the substrate, of the first electrode layer;

the second electrode layer is arranged on one side, far away from the substrate, of the electronic ink layer;

the first electrode layer comprises a first pattern area and a first non-pattern area, the thickness of the first electrode layer of the first pattern area is different from that of the first electrode layer of the first non-pattern area, the first pattern area comprises a plurality of different first sub-pattern areas, and the thicknesses of the first electrode layers corresponding to the plurality of different first sub-pattern areas are different.

2. The housing assembly of claim 1 wherein the second electrode includes a second patterned area and a second non-patterned area, an orthogonal projection of the first non-patterned area on the substrate overlaps an orthogonal projection of the second non-patterned area on the substrate, and a thickness of the first electrode layer of the first non-patterned area is equal to a thickness of the second electrode layer of the second non-patterned area; the orthographic projection of the first pattern area on the base body is overlapped with the orthographic projection of the second pattern area on the base body, and the thickness of the first electrode layer of the first pattern area is equal to that of the second electrode layer of the second pattern area.

3. The housing assembly of claim 2, wherein the second pattern region comprises a plurality of different second sub-pattern regions, the second electrode layers of the plurality of different second sub-pattern regions have different thicknesses, and the thicknesses of the first electrode layer of the first sub-pattern region and the second electrode layer of the second sub-pattern region overlapping each other in orthographic projection on the substrate are the same.

4. The housing assembly of claim 1, wherein the thickness of the first electrode layer corresponding to a plurality of different first sub-pattern regions is gradually increased or decreased in the first direction.

5. The housing assembly according to claim 1, wherein a thickness of the first electrode layer of the first non-pattern region and a thickness of the first electrode layer of the plurality of first sub-pattern regions satisfy any one of the following conditions:

the first electrode layer thickness of the first non-pattern region is greater than a maximum of the first electrode layer thicknesses of the plurality of first sub-pattern regions;

the thickness of the first electrode layer of the first non-pattern region is smaller than the minimum value of the thicknesses of the first electrode layers of the first sub-pattern regions.

6. The housing assembly of any of claims 1 to 3 wherein the optical coating comprises a plurality of sub-coatings arranged in a stack, and wherein the materials of two adjacent sub-coatings are different.

7. A housing assembly according to any one of claims 1 to 3, wherein the area of the orthographic projection of the layer of electronic ink on the first electrode layer is smaller than the area of the first electrode layer;

the shell assembly further comprises a glue layer;

the glue layer is located between the first electrode layer and the second electrode layer and used for packaging the side edge of the electronic ink layer.

8. The housing assembly of any of claims 1-3, further comprising a first support layer, a second support layer, a first water oxygen barrier layer, and a second water oxygen barrier layer;

the first supporting layer is located the first electrode layer is kept away from one side of electron ink layer, the second supporting layer is located the second electrode layer is kept away from one side of electron ink layer, first water oxygen barrier layer is located first supporting layer is kept away from one side of electron ink layer, second water oxygen barrier layer is located the second supporting layer is kept away from one side of electron ink layer.

9. The housing assembly of claim 8, further comprising:

the substrate layer is positioned on the surface of the optical coating layer, which is far away from the substrate;

and the bonding layer is positioned between the optical coating layer and the substrate.

10. A method of making a housing assembly, comprising:

forming a first electrode layer and a second electrode layer, wherein the first electrode layer and the second electrode layer are opposite and arranged at intervals;

injecting electronic ink into a gap between the first electrode layer and the second electrode layer to form an electronic ink layer;

forming an optical coating layer on one side of the first electrode layer, which is far away from the electronic ink layer;

attaching the side of the optical coating layer far away from the electronic ink layer to a substrate,

the first electrode layer comprises a first pattern area and a first non-pattern area, the thickness of the first electrode layer of the first pattern area is different from that of the first electrode layer of the first non-pattern area, the first pattern area comprises a plurality of different first sub-pattern areas, and the thicknesses of the first electrode layers corresponding to the different first sub-pattern areas are different.

11. The method of claim 10, wherein the step of forming the first electrode layer comprises:

forming a first electrode material layer with uniform thickness on one side of a first support layer, and dividing the first electrode material layer into a first etching area and a first non-etching area, wherein the first etching area comprises a plurality of first sub-etching areas;

shielding the first non-etching area, etching the first etching area, and removing the first electrode material layer of the first etching area to obtain a first blank area, wherein the first blank area comprises a plurality of first sub-blank areas;

and evaporating a conductive material in the first blank area by adopting a shielding film coating process, wherein the thicknesses of the conductive material evaporated in the first blank areas are different, so that the first electrode layer with the first pattern area and the first non-pattern area is obtained.

12. The method according to claim 10, wherein the second electrode comprises a second patterned area and a second non-patterned area, an orthographic projection of the first non-patterned area on the substrate overlaps with an orthographic projection of the second non-patterned area on the substrate, and an orthographic projection of the first patterned area on the substrate overlaps with an orthographic projection of the second patterned area on the substrate;

the step of forming the second electrode layer includes:

forming a second electrode material layer with uniform thickness on one side of a second supporting layer, and dividing the second electrode material layer into a second etching area and a second non-etching area, wherein the second etching area comprises a plurality of second sub-etching areas;

shielding the second non-etching area, etching the second etching area, and removing the second electrode material layer of the second etching area to obtain a second blank area, wherein the second blank area comprises a plurality of second sub blank areas;

and evaporating a conductive material in the second blank area by adopting a shielding film coating process, wherein the thicknesses of the conductive material evaporated in the second blank areas are different, so that the second electrode layer with the second pattern area and the second non-pattern area is obtained.

13. The method of claim 10, wherein the step of forming the first electrode layer comprises:

etching the first etching area of the first electrode material layer, etching and thinning the first electrode material layer in the first etching area by controlling the etching degree, wherein the etching degree of the first sub-etching areas is different, and the first electrode layer with the first pattern area and the first non-pattern area is obtained.

14. The method according to claim 10, wherein the second electrode comprises a second patterned area and a second non-patterned area, an orthographic projection of the first non-patterned area on the substrate overlaps with an orthographic projection of the second non-patterned area on the substrate, and an orthographic projection of the first patterned area on the substrate overlaps with an orthographic projection of the second patterned area on the substrate;

the step of forming the second electrode layer includes:

etching the second etching area of the second electrode material layer, etching and thinning the second electrode material layer in the second etching area by controlling the etching degree, wherein the etching degree of a plurality of different second sub-etching areas is different, and the second electrode layer with the second pattern area and the second non-pattern area is obtained.

15. An electronic device, characterized in that the electronic device comprises: the display screen assembly, the main board and the shell assembly;

the housing assembly is as claimed in any one of claims 1 to 9;

the display screen assembly is connected with the shell assembly, and an installation space is defined between the display screen assembly and the shell assembly;

the main board is arranged in the mounting space and is electrically connected with the display screen assembly;

the main board comprises a controller, wherein the controller is electrically connected with the first electrode layer and the second electrode layer in the shell assembly and is used for controlling the pattern and color change of the shell assembly.

16. The electronic device as claimed in claim 15, wherein the controller controls a voltage between the first electrode layer and the second electrode layer, under the action of the voltage, the electronic ink layer gradually changes from a first color to a second color, and under the combined action of the electronic ink layer and the optical coating layer, the appearance color of the housing assembly corresponding to the first pattern area and the first non-pattern area respectively changes.

17. The electronic device of claim 15, wherein the thickness of the first electrode layer corresponding to the plurality of different first sub-pattern regions gradually increases or decreases in a first direction, and the appearance color of the housing assembly corresponding to each of the plurality of different first sub-pattern regions sequentially changes in the first direction.