CN208489884U - A kind of covering plate structure and mobile terminal - Google Patents

Abstract

It includes transparent cover plate that the utility model embodiment, which discloses a kind of covering plate structure and mobile terminal, the covering plate structure,；Positioned at the coating structure of the predeterminable area on the transparent cover plate surface, the coating structure includes multiple film coating units, and the area in the multiple film coating unit along each film coating unit of first direction arrangement is gradually increased；Deviate from the ink layer of the coating structure side positioned at the transparent cover plate, the color of the ink layer is different from the color of the coating structure, so that the predeterminable area of the covering plate structure shows the gradual change for being formed by color after being superimposed to the ink layer with the film coating unit by the color of the ink layer, and then can be realized fade effect, improve the usage experience of user.

Description

A kind of covering plate structure and mobile terminal

Technical field

The utility model relates to mobile terminal device field more particularly to a kind of covering plate structures and mobile terminal.

Background technique

With the development of science and technology, more and more mobile terminals start to shield using with light weight, no signal Glass is as cover board, moreover, compared with metal cover board and ceramic cover plate, glass cover-plate also has at low cost, and the processing is simple, non-defective unit The advantages that rate is high.But since current glass cover-plate is that transparent cover plate color is single, to will affect the usage experience of user.

Utility model content

In order to solve the above technical problems, the utility model embodiment provides a kind of covering plate structure and mobile terminal, with solution Certainly current glass cover-plate is the single problem of transparent cover plate color, improves the usage experience of user.

To solve the above problems, the utility model embodiment provides following technical solution:

A kind of covering plate structure, comprising:

Transparent cover plate；

Positioned at the coating structure of the predeterminable area on the transparent cover plate surface, the coating structure includes multiple plated film lists Member, the area in the multiple film coating unit along each film coating unit of first direction arrangement are gradually increased；

Deviate from the ink layer of the coating structure side, the color of the ink layer and the plating positioned at the transparent cover plate The color of membrane structure is different.

Optionally, the area for each film coating unit arranged in a second direction in the multiple film coating unit is identical, wherein institute The angle for stating second direction and the first direction is located within the scope of 0-90 °, including right end point value.

Optionally, the film coating unit includes the hierarchical element of at least two stackings, and the hierarchical element includes stacking Titanium oxide layer and silicide layer.

Optionally, the titanium oxide is titanium oxide, and the silicide is silica.

Optionally, the Thickness range of the film coating unit is 300nm-800nm, including endpoint value.

Optionally, the hierarchical element of at least two stacking includes the first hierarchical element of stacking, the second hierarchical element With third layer stack unit.

Optionally, the hierarchical element includes the titanium oxide layer and silicon oxide layer of stacking, and the silicon oxide layer is located at described Titanium oxide layer deviates from the side of the transparent cover plate；Wherein,

The Thickness range of titanium oxide layer is 10nm-30nm, including endpoint value in first hierarchical element；Silica The Thickness range of layer is 30nm-70nm, including endpoint value；

The Thickness range of titanium oxide layer is 50nm-100nm, including endpoint value in second hierarchical element；Oxidation The Thickness range of silicon layer is 10nm-50nm, including endpoint value；

The Thickness range of titanium oxide layer is 30nm-100nm, including endpoint value in the third layer stack unit；Oxidation The Thickness range of silicon layer is 30nm-100nm, including endpoint value.

Optionally, the shape of the multiple film coating unit is identical.

Optionally, the shape of the film coating unit is circle.

Optionally, in the multiple film coating unit, two film coating units of arbitrary neighborhood are on the transparent cover plate The distance between center of projection a is equal, wherein the value range of a meets: 0.01mm < a < 3mm.

Optionally, the radius R of the film coating unit meets:10μm≤R≤200μm。

Optionally, the color of the ink layer is black, and the Thickness range of the ink layer is 3 μm -30 μm, including Endpoint value.

A kind of mobile terminal, including covering plate structure described in any of the above embodiments.

Compared with prior art, above-mentioned technical proposal has the advantage that

Covering plate structure provided by the utility model embodiment, due to the predeterminable area positioned at the transparent cover plate surface The color of coating structure is different away from the color of ink layer of the coating structure side from positioned at the transparent cover plate, therefore, The ink layer will form the face presented different from the ink layer with being superimposed for coating structure being located on the ink layer Color, and the coating structure include multiple film coating units in along first direction arrangement each film coating unit area by It is cumulative big, it can make along first direction, the ink layer is formed by color described pre- after being superimposed with the film coating unit If proportion is gradually increased in region, so that the predeterminable area of the covering plate structure is showed by the face of the ink layer Color is formed by the gradual change of color after being superimposed to the ink layer with the film coating unit, and then can be realized fade effect, mentions The usage experience of high user.

Detailed description of the invention

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor Under, it is also possible to obtain other drawings based on these drawings.

Fig. 1 is a kind of schematic diagram of covering plate structure provided by the embodiment of the utility model；

Fig. 2 is a kind of top view of covering plate structure provided by the embodiment of the utility model；

Fig. 3 is the top view of another covering plate structure provided by the embodiment of the utility model；

Fig. 4 is the top view of another covering plate structure provided by the embodiment of the utility model；

Fig. 5 is the top view of another covering plate structure provided by the embodiment of the utility model；

Fig. 6 is a kind of schematic diagram of film coating unit provided by the embodiment of the utility model；

Fig. 7 is a kind of schematic diagram of the specific structure of film coating unit provided by the embodiment of the utility model.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Many details are explained in the following description in order to fully understand the utility model, but this is practical new Type can also be implemented using other than the one described here other way, and those skilled in the art can be without prejudice to this reality With doing similar popularization in the case where novel intension, therefore the utility model is not limited by the specific embodiments disclosed below.

Just as described in the background section, since glass cover-plate is that transparent cover plate color is single, to will affect user's Usage experience.In order to solve this problem, the embodiment of the present application provides a kind of covering plate structure, which can be realized gradual change Effect, to improve the usage experience of user.

Fig. 1 shows a kind of schematic diagram of covering plate structure provided by the embodiment of the utility model, and Fig. 2 is shown in fig. 1 The top view of covering plate structure, referring to Figures 1 and 2, which includes:

Transparent cover plate 1；

Positioned at the coating structure 2 of the predeterminable area on 1 surface of transparent cover plate, the coating structure 2 includes multiple plated films Unit 4, the area in the multiple film coating unit 4 along each film coating unit 4 of first direction X arrangement are gradually increased；

Deviate from the ink layer 3 of 2 side of coating structure, the color of the ink layer 3 and institute positioned at the transparent cover plate 1 The color for stating coating structure 2 is different.

Covering plate structure provided by the utility model embodiment, due to the predeterminable area positioned at the transparent cover plate surface The color of coating structure is different away from the color of ink layer of the coating structure side from positioned at the transparent cover plate, therefore, The ink layer will form the face presented different from the ink layer with being superimposed for coating structure being located on the ink layer Color, and the coating structure include multiple film coating units in along first direction arrangement each film coating unit area by It is cumulative big, it can make along first direction, the ink layer is formed by color described pre- after being superimposed with the film coating unit If proportion is gradually increased in region, so that the predeterminable area of the covering plate structure is showed by the face of the ink layer Color is formed by the gradual change of color after being superimposed to the ink layer with the film coating unit, and then can be realized fade effect, mentions The usage experience of high user.

Specifically, with the color of the ink layer for the first color, shape after the ink layer is superimposed with the film coating unit At color be the second color for, along each of first direction arrangement in multiple film coating units for including with the coating structure The area of the film coating unit is gradually increased, and can be made along first direction, after the ink layer is superimposed with the film coating unit Being formed by color (i.e. the second color), proportion is gradually increased in the predeterminable area, so that the covering plate structure Predeterminable area show fade effect in a first direction, improve the usage experience of user.

Specifically, on the basis of the above embodiments, in one embodiment of the utility model, the transparent cover plate 1 It can be glass cover-plate or sapphire cover board etc..Material needed for the transparent cover plate is compared to metal material and ceramic material For, with the advantages that light weight, no signal shielding is at low cost, and the processing is simple and yields is high.

On the basis of the above embodiments, in one embodiment of the utility model, the predeterminable area can be institute The whole surface of transparent cover plate or the part of the surface of the transparent cover plate are stated, is specifically depended on the circumstances；Wherein, the preset areas Domain includes multiple sub- predeterminable areas, at least one sub- predeterminable area is by the film coating unit in the multiple sub- predeterminable area Covering, and when at least two sub- predeterminable areas are covered by the film coating unit in the multiple sub- predeterminable area, the plating Area in multiple film coating units that membrane structure includes along each film coating unit of first direction X arrangement is gradually increased, and can be made It obtains along first direction, the ink layer is formed by the second color in the sub- predeterminable area after being superimposed with the film coating unit Interior proportion is gradually increased, so that the predeterminable area of the covering plate structure shows the color by the ink layer to institute It states after ink layer is superimposed with the film coating unit and is formed by the gradual change of the second color, and then can be realized fade effect, improve The usage experience of user.

Optionally, on the basis of the above embodiments, in one embodiment of the utility model, when the multiple son is pre- If at least two sub- predeterminable areas are covered by the film coating unit in region, the corresponding son of a film coating unit is default Region, i.e. a film coating unit only cover a sub- predeterminable area, and when the sub- predeterminable area has film coating unit covering, should Sub- predeterminable area also only has a film coating unit covering.

On the basis of the above embodiments, in one embodiment of the utility model, in order to realize the pre- of covering plate structure If only there is fade effect in region along first direction X, each film coating unit arranged in a second direction in the multiple film coating unit Area it is identical, wherein the angle of the second direction and the first direction X are located within the scope of 0-90 °, including right endpoint Value.The first direction X can be parallel to the extending direction or described of any side of the transparent cover plate 1 in practical applications Cornerwise extending direction etc. on the adjacent both sides of bright cover board, the utility model are to this and without limitation, specific visual described transparent Depending on the concrete shape of cover board.Preferably, the diagonal line on the adjacent both sides of the transparent cover plate 1 is parallel to the first direction X Extending direction, and for the angle of the second direction Y and the first direction X are 90 °, as shown in figure 3, along described first The area of each film coating unit of direction arrangement is gradually increased, to realize the predeterminable area of the covering plate structure only along first The gradual change of direction X.Preferably, the extending direction of any side of the transparent cover plate 1, and described are parallel to first direction X For the angle of the two direction Y and first direction X is 90 °, along the face of each film coating unit of first direction arrangement Product is gradually increased, to realize gradual change of the predeterminable area along the first direction X of the covering plate structure, specifically, such as Shown in Fig. 4, the predeterminable area of the covering plate structure is realized only along the gradual change in from left to right direction, that is to say, that the embodiment It is to be illustrated so that the first direction X is by the left direction right side as an example, but do not limit this, in other of the utility model In embodiment, the first direction X can also be left by right direction.In addition, as shown in figure 5, the predeterminable area of the covering plate structure It realizes only along the gradual change in direction from top to bottom, that is to say, that the embodiment is to be directed toward down with the first direction X by upper side frame It is illustrated for frame, but this is not limited, in the other embodiments of the utility model, the first direction X Upper side frame can also be directed toward by lower frame, as long as the extending direction of its any side for being parallel to the transparent cover plate 1.

On the basis of the above embodiments, in one embodiment of the utility model, the film coating unit 4 includes at least The hierarchical element of two stackings, the hierarchical element include the titanium oxide layer and silicide layer of stacking.Preferably, the titanyl Compound is titanium oxide, and the silicide is silica.

It should be noted that the film coating unit is superimposed with the ink layer if the thickness of film coating unit is too small Being formed by the second color afterwards cannot be distinguished well with the color of the ink layer, to be difficult to play the effect of gradual change Fruit；If the thickness of film coating unit 4 is excessive, it is easy for keeping plated film time too long, to influence the production work of entire covering plate structure Skill, and then improve the cost of manufacture of covering plate structure.Specifically, the Thickness range of the film coating unit 4 is 300nm- 800nm, including endpoint value.

On the basis of the above embodiments, in one embodiment of the utility model, at least two stacking is folded Layer unit includes the first hierarchical element, the second hierarchical element and the third layer stack unit of stacking, as shown in Figure 6.

On the basis of the above embodiments, in one embodiment of the utility model, the hierarchical element includes stacking Titanium oxide layer and silicon oxide layer, the silicon oxide layer be located at the titanium oxide layer deviate from the transparent cover plate side；Wherein,

The Thickness range of titanium oxide layer is 10nm-30nm, including endpoint value in first hierarchical element；Silica The Thickness range of layer is 30nm-70nm, including endpoint value；

The Thickness range of titanium oxide layer is 50nm-100nm, including endpoint value in second hierarchical element；Oxidation The Thickness range of silicon layer is 10nm-50nm, including endpoint value；

The Thickness range of titanium oxide layer is 30nm-100nm, including endpoint value in the third layer stack unit；Oxidation The Thickness range of silicon layer is 30nm-100nm, including endpoint value.

It should be noted that the film coating unit 4 can from bottom to top successively include titanium oxide layer, silicon oxide layer, oxidation Titanium layer, silicon oxide layer, titanium oxide layer and silicon oxide layer, as shown in Figure 7.Wherein, from bottom to top refer to by close to the transparency cover The direction of plate to the direction far from transparent cover plate.

Due to including three hierarchical elements in film coating unit described in the utility model, and define oxygen in each hierarchical element The Thickness range for changing titanium layer and silicon oxide layer, so that film coating unit described above is presented after being superimposed with the ink layer Second color out, and the area of each film coating unit along first direction arrangement is gradually increased, and can be made along first direction On, the ink layer is formed by the second color proportion in the predeterminable area and gradually increases after being superimposed with film coating unit Greatly, so that the predeterminable area of the covering plate structure shows the color by the ink layer to the ink layer and plated film list It is formed by the gradual change of the second color after member superposition, and then can be realized fade effect, improves the usage experience of user.

In addition, the film coating unit can also improve the reflectivity of the covering plate structure.

Based on any of the above embodiments, in one embodiment of the utility model, the multiple film coating unit Shape it is identical, it should be noted that the shape of film coating unit be regular figure, be specifically as follows round, rectangular or hexagon, In the other embodiments of the utility model, the shape of the film coating unit may be irregular figure, specifically optionally and It is fixed.Preferably, when the shape of the film coating unit 4 is round, the fade effect of the covering plate structure can be more uniform.

On the basis of the above embodiments, described with continued reference to Fig. 3-Fig. 5 in one embodiment of the utility model In multiple film coating units 4, arbitrary neighborhood two film coating units 4 are between the center of the projection on the transparent cover plate 1 Distance a is equal, wherein the value range of a meets:

0.01mm<a<3mm.It should be noted that described here is projected as orthographic projection, and described in arbitrary neighborhood two If distance a of the film coating unit 4 between the center of the projection on the transparent cover plate 1 is excessive, the shape of film coating unit can be made It is oversized, to cause naked eyes as it can be seen that influencing fade effect；If a is too small, the geomery mistake of film coating unit can be made It is small, to will lead to difficulty of processing increase.It should also be noted that, when the shape of the film coating unit 4 is round, described Distance a of the two neighboring film coating unit 4 of anticipating between the center of the projection on the transparent cover plate 1 is the arbitrary neighborhood The distance of center circle a of two film coating units 4.

In addition, the number of film coating unit can pass through the predeterminable area on the transparent cover plate surface in the covering plate structure The size of the distance of center circle a of two film coating units of size and the arbitrary neighborhood determines, wherein with the predeterminable area Shape be it is rectangular for, method particularly includes: obtain the size of the two neighboring adjacent side of the predeterminable area；It then will be described adjacent The size of two adjacent sides divided by the size of the distance of center circle a, obtains the line number and columns of the film coating unit respectively, finally by institute The line number for stating film coating unit obtains the number of the film coating unit multiplied by the columns of the film coating unit.Certainly it can also pass through it His method determines, the utility model to this and without limitation, specifically depends on the circumstances.

Distance of center circle between film coating unit described in any two as described in the utility model is equal, and along described first The area of each film coating unit of direction arrangement is gradually increased so that the film coating unit be uniformly arranged on it is described transparent On cover board so that the covering plate structure predeterminable area present by the ink layer color to the ink layer with it is described The uniform gradual change of the second color is formed by after film coating unit superposition.

On the basis of the above embodiments, in one embodiment of the utility model, the radius R of the film coating unit 4 Meet:10 μm≤R≤200 μm, it should be noted that if R is excessive, i.e. the circular dimension mistake of film coating unit Greatly, naked eyes can be caused as it can be seen that influencing fade effect；If R is too small, i.e. the circular dimension of film coating unit is too small, will lead to processing Difficulty increases.That is, the radius R of the film coating unit 4 can make the pre- of the covering plate structure when meeting above-mentioned condition If the fade effect that region is presented is obvious, while naked eyes cannot be clearly visible the circular configuration of film coating unit.

It should be noted that in a first direction on X, the value range of two circular diameter differences of arbitrary neighborhood is 0.5 μm- 10 μm, including endpoint.And the diameter difference can lead to greatly fade effect not very much to avoid difference range in this value range Uniformly, and difference is too small that the unconspicuous situation of fade effect is caused to occur.

On the basis of the above embodiments, in one embodiment of the utility model, the color of the ink layer is black Color, the Thickness range of the ink layer is 3 μm -30 μm, including endpoint value.It should be noted that the thickness of the ink layer Degree not only can guarantee while black is presented in the ink layer but also not light leakage in 3 μm of -30 μ m.

Since the color of the ink layer is that black can make then the ratio of the predeterminable area shared by the film coating unit is smaller The color that is presented in the predeterminable area closer to ink layer color, then the ratio of the predeterminable area shared by the film coating unit It is bigger, the color that the predeterminable area can be made to be presented closer to film coating unit be superimposed with ink layer after be formed by the second face Color, therefore the face for each film coating unit arranged in the multiple film coating units for including with the coating structure along first direction Product is gradually increased, and can be made along first direction, the ink layer is formed by the second color after being superimposed with the film coating unit Proportion is gradually increased in the predeterminable area, so that the predeterminable area of the covering plate structure is realized along first direction It is formed by the gradual change of the second color after being superimposed to the ink layer with the film coating unit by black, and then reaches better view Feel effect.

In a specific embodiment of the utility model, the color (i.e. the first color) of the ink layer is black, and The ink layer be formed by after being superimposed with the film coating unit color (i.e. the second color) for blue when, in the present embodiment, The gradual change by black to blue is presented in the predeterminable area along first direction.

In the present embodiment, formation basic theory when second color is blue are as follows: when white light to the plated film list When the upper surface of member, wherein the blue light in white light is reflected by the film coating unit, and the light of other colors in white light is a part of It is absorbed by the film coating unit, and remaining light is absorbed through the film coating unit by the ink layer of the black, so that institute It states film coating unit and shows blue on the ink layer of the black, i.e., the ink layer of the described black is superimposed with the film coating unit The second color is formed by as blue.

It should be noted that in the utility model other embodiments, the color (i.e. the first color) of the ink layer is Black, and second color can also be green, red, yellow or cyan etc., wherein by taking the second color is green as an example, institute State formation basic theory when the second color is green are as follows: when white light is to the upper surface of the film coating unit, wherein in white light Green light reflected by the film coating unit, and light a part of other colors in white light is absorbed by the film coating unit, and Remaining light is absorbed through the film coating unit by the ink layer of the black, so that oil of the film coating unit in the black Green is showed in layer of ink, i.e., it is green that the ink layer of the described black, which is superimposed with the film coating unit and is formed by the second color, When second color is red, yellow or cyan, formation basic theory is same as above.It should also be noted that, can be according to the ink The color and second color of layer adjusts the thickness of the film coating unit.

In addition, the utility model embodiment additionally provides a kind of mobile terminal, the mobile terminal includes any of the above-described reality Covering plate structure provided by example is applied, so that the covering plate structure of the mobile terminal realizes fade effect.Preferably, the shifting Dynamic terminal can be mobile phone, tablet computer or Vehicular display device etc., and the utility model is not specifically limited.It should be noted that The covering plate structure of the mobile terminal is preferably mobile phone shell, the display screen of the rear cover or Vehicular display device of tablet computer it is non-display Region.

To sum up, mobile terminal provided in this embodiment, the plated film of the predeterminable area due to being located at the transparent cover plate surface The color of structure is different away from the color of ink layer of the coating structure side from positioned at the transparent cover plate, therefore, described Ink layer will form the color presented different from the ink layer with being superimposed for coating structure being located on the ink layer, and And the coating structure include multiple film coating units in gradually increase along the area of each film coating unit of first direction arrangement Greatly, can make along first direction, the ink layer is superimposed with film coating unit is formed by color institute in the predeterminable area Accounting example is gradually increased, so that the predeterminable area of the covering plate structure shows the color by the ink layer to the oil Layer of ink is superimposed the gradual change for being formed by color with film coating unit, and then can be realized fade effect, improves the usage experience of user.

Various pieces are described in a progressive manner in this specification, and what each some importance illustrated is and other parts Difference, same and similar part may refer to each other between various pieces.

The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to embodiment illustrated herein, and is to fit to and principles disclosed herein and new The consistent widest scope of clever feature.

Claims (13)

1. a kind of covering plate structure characterized by comprising

Transparent cover plate；

Positioned at the coating structure of the predeterminable area on the transparent cover plate surface, the coating structure includes multiple film coating units, institute The area in multiple film coating units along each film coating unit of first direction arrangement is stated to be gradually increased；

Deviate from the ink layer of the coating structure side, the color of the ink layer and the plated film knot positioned at the transparent cover plate The color of structure is different.

2. covering plate structure according to claim 1, which is characterized in that arrange in a second direction in the multiple film coating unit Each film coating unit area it is identical, wherein the angle of the second direction and the first direction is located within the scope of 0-90 °, Including right end point value.

3. covering plate structure according to claim 1, which is characterized in that the film coating unit includes the folded of at least two stackings Layer unit, the hierarchical element include the titanium oxide layer and silicide layer of stacking.

4. covering plate structure according to claim 3, which is characterized in that the titanium oxide is titanium oxide, the silicide For silica.

5. covering plate structure according to claim 4, which is characterized in that the Thickness range of the film coating unit is 300nm-800nm, including endpoint value.

6. covering plate structure according to claim 5, which is characterized in that the hierarchical element of at least two stacking includes layer Folded the first hierarchical element, the second hierarchical element and third layer stack unit.

7. covering plate structure according to claim 6, which is characterized in that the hierarchical element include stacking titanium oxide layer and Silicon oxide layer, the silicon oxide layer are located at the side that the titanium oxide layer deviates from the transparent cover plate；Wherein,

The Thickness range of titanium oxide layer is 10nm-30nm, including endpoint value in first hierarchical element；Silicon oxide layer Thickness range is 30nm-70nm, including endpoint value；

The Thickness range of titanium oxide layer is 50nm-100nm, including endpoint value in second hierarchical element；Silicon oxide layer Thickness range be 10nm-50nm, including endpoint value；

The Thickness range of titanium oxide layer is 30nm-100nm, including endpoint value in the third layer stack unit；Silicon oxide layer Thickness range be 30nm-100nm, including endpoint value.

8. covering plate structure according to claim 1-7, which is characterized in that the shape phase of the multiple film coating unit Together.

9. covering plate structure according to claim 8, which is characterized in that the shape of the film coating unit is circle.

10. covering plate structure according to claim 9, which is characterized in that in the multiple film coating unit, arbitrary neighborhood two Distance a of the film coating unit between the center of the projection on the transparent cover plate is equal, wherein the value range of a is full Foot: 0.01mm < a < 3mm.

11. covering plate structure according to claim 10, which is characterized in that the radius R of the film coating unit meets:

10μm≤R≤200μm。

12. covering plate structure according to claim 11, which is characterized in that the color of the ink layer is black, the oil The Thickness range of layer of ink is 3 μm -30 μm, including endpoint value.

13. a kind of mobile terminal, which is characterized in that including the described in any item covering plate structures of claim 1-12.