CN106385473B - Housing, fingerprint module and mobile terminal - Google Patents

Abstract

A shell, a fingerprint module and a mobile terminal are provided, wherein the shell comprises an outer side cover plate and an inner side cover plate which are vertically stacked and mutually attached; the outer side cover plate faces a user, and a through hole is formed in the outer side cover plate or the inner side cover plate; the inner side cover plate is used for being attached to a fingerprint chip at the position opposite to the through hole of the outer side cover plate; or the through hole of the inner side cover plate is used for the fingerprint chip to pass through so that the fingerprint chip is attached to the outer side cover plate. The outer side cover plate or the inner side cover plate is provided with a through hole, so that the shell is ensured that the distance between the fingerprint chip and the fingerprint of a user is reduced at the through hole, and the fingerprint chip is convenient to collect fingerprint information. Moreover, the through hole only has stress damage to the outer side cover plate or the inner side cover plate, and the shell can be reinforced by utilizing the inner side cover plate without the through hole or the outer side cover plate without the through hole, so that the production yield of the shell is improved.

Description

Housing, fingerprint module and mobile terminal

technical field

The invention relates to the field of electronic equipment, in particular to a casing, a fingerprint module and a mobile terminal.

Background technique

At present, a fingerprint chip is attached to the inner side of many mobile phone casings, and the fingerprint chip collects user fingerprint information through the mobile phone casing. Usually, the penetration power of the fingerprint chip to collect the fingerprint signal is limited, so it is necessary to set a groove on the mobile phone case relative to the fingerprint chip to reduce the thickness of the mobile phone case relative to the fingerprint chip and facilitate the fingerprint chip to collect fingerprint information. However, the structure in which the grooves are arranged on the mobile phone case is likely to cause stress damage to the mobile phone case, that is, the yield rate of the mobile phone case is likely to decrease. At present, there is no mobile phone case that can ensure that the fingerprint chip collects fingerprint information and can improve the production yield.

SUMMARY OF THE INVENTION

The technical problem to be solved by the embodiments of the present invention is to provide a casing, a fingerprint module and a mobile terminal that not only ensure that the fingerprint chip collects fingerprint information but also improve the production yield.

The present invention provides a casing, wherein the casing includes an outer cover plate and an inner cover plate that are stacked up and down and attached to each other; the outer cover plate faces a user, and the outer cover plate or the inner cover plate is provided with There are through holes; the inner cover plate is opposite to the through holes of the outer cover plate for attaching the fingerprint chip; or the through holes of the inner cover plate are used for the fingerprint chip to pass through, so that the fingerprint chip can pass through. Fitted to the outer cover.

The present invention also provides a fingerprint module, wherein the fingerprint module includes the casing, the fingerprint module further includes a fingerprint chip, and the fingerprint chip is attached to the inner cover plate and is opposite to the outer cover It is attached to the outer cover plate at the through hole of the plate or through the through hole of the inner cover plate.

The present invention also provides a mobile terminal, wherein the mobile terminal includes the fingerprint module.

In the case, fingerprint module and mobile terminal provided by the present invention, the case includes an outer cover plate and an inner cover plate that are stacked on each other, and the outer cover plate or the inner cover plate is provided with a through hole, thereby ensuring that The casing reduces the distance between the fingerprint chip and the user's fingerprint at the through hole, which facilitates the fingerprint chip to collect fingerprint information. In addition, the through hole only causes stress damage to the outer cover plate or the inner cover plate, and the shell can be stress reinforced by using the inner cover plate without through holes or the outer cover plate without through holes , thereby improving the production yield of the casing.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a partial cross-sectional schematic diagram of a casing according to a first embodiment of the present invention;

FIG. 2 is a partial cross-sectional schematic diagram of a casing according to a second embodiment of the present invention;

3 is another schematic cross-sectional view of the housing according to the first embodiment of the present invention;

Fig. 4 is a perspective exploded schematic view of the housing of Fig. 3;

FIG. 5 is another schematic cross-sectional view of the casing according to the second embodiment of the present invention;

Fig. 6 is a perspective exploded schematic view of the housing of Fig. 5;

7 is a schematic cross-sectional view of a casing according to a third embodiment of the present invention;

8 is a schematic cross-sectional view of the fingerprint module according to the first embodiment of the present invention;

9 is a schematic cross-sectional view of a fingerprint module according to a second embodiment of the present invention;

FIG. 10 is a partial cross-sectional schematic diagram of a mobile terminal provided by the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Referring to FIG. 1 and FIG. 2 , the present invention provides a casing 100 , the casing 100 includes an outer cover plate 10 and an inner cover plate 20 that are stacked up and down and attached to each other. The outer cover 10 faces the user, and the outer cover 10 or the inner cover 20 is provided with a through hole 30 ; or the through hole of the inner cover plate 20 is used for the fingerprint chip 40 to pass through, so that the fingerprint chip 40 is attached to the outer cover plate 10 . It can be understood that the casing 100 covers the fingerprint chip 40 , and the casing 100 and the fingerprint chip 40 can be applied to a mobile terminal, so that the user can pass the casing 100 to the fingerprint chip 40 . The fingerprint chip 40 inputs the fingerprint chip, and then uses the fingerprint information to control the mobile terminal. The mobile terminal may be a mobile phone, a tablet computer, or a notebook computer.

Since the casing 100 includes the outer cover plate 10 and the inner cover plate 20 that are stacked on each other, and the outer cover plate 10 or the inner cover plate 20 is provided with a through hole 30 , it is ensured that the casing 100 is located at any location. The through hole 30 conveniently reduces the distance between the fingerprint chip 40 and the user's fingerprint, and facilitates the fingerprint chip 40 to collect fingerprint information. In addition, the through hole 30 only causes stress damage to the outer cover plate 10 or the inner cover plate 20, and the housing 100 can use the inner cover plate 20 without the through hole 30 or the inner cover plate 20 without the through hole 30. The outer cover plate 10 is reinforced by stress, thereby improving the production yield of the casing 100 .

The casing 100 can be a front cover of a mobile phone, a back shell of a mobile phone, or a side frame of a mobile phone. The outer cover plate 10 and the inner cover plate 20 may be made of the same material or different materials. As an embodiment, the outer cover plate 10 may be made of glass material, so that the outer surface of the casing 100 is smooth, and the outer structure of the casing 100 has performances such as wear resistance, water resistance, and dust resistance. The inner cover plate 20 can be made of plexiglass material, so that the inner cover plate 20 can be easily processed and the production cost of the housing 100 can be reduced. In order to improve the adhesion between the outer cover plate 10 and the inner cover plate 20 , the outer cover plate 10 is flat on the surface of the inner cover plate 20 , and the inner cover plate 20 faces the outer cover plate 20 . The surface of the board 10 is also laid flat. The surface of the outer cover plate 10 opposite to the inner cover plate 20 serves as the appearance surface of the housing 100 , which may be a smooth curved surface, a smooth flat surface, or a light-scattering surface. The outer cover plate 10 and the inner cover plate 20 are bonded together by optical adhesive 10a.

The through hole 30 may be formed on the outer cover plate 10 or the inner cover plate 20 by a wire cutting process or an injection molding process. The through hole 30 may be an "oval" through hole, a circular through hole, or a rectangular through hole. The through hole 30 penetrates through the outer cover plate 10 or the inner cover plate 20 , so that the outer cover plate 10 or the inner cover plate 20 can be easily processed, and the need for the outer cover plate 10 or the inner cover plate 20 is reduced. The surface of the inner cover plate 20 is damaged to ensure the appearance performance of the casing 100 . The diameter of the through hole 30 allows the user's finger 01 to pass through or the fingerprint chip to pass through.

In the first embodiment, the through hole 30 is opened in the outer cover plate 10 . In order to increase the strength of the casing 100 , the outer cover plate 10 is made of aluminum-silicon tempered glass with higher hardness. Therefore, the outer cover plate 10 can be obtained by wire-cutting the through hole 30 from a complete piece of aluminum-silicon tempered glass. By opening the through hole 30 on the outer cover plate 10, the user can contact the inner cover plate 20 through the through hole 30, so that the user's fingerprint can touch the inner cover plate 20, so that the user can touch the inner cover plate 20. The fingerprint chip 40 collects the fingerprints of the user against the inner cover 20 through the inner cover 20 . The through hole 30 is disposed on the outer cover plate 10 , and the position of the fingerprint chip 40 can also be indicated for the user, which is convenient for the user to locate the fingerprint. In order to facilitate the fingerprint chip 40 to be collected through the inner cover plate 20 fingerprint information, so the thickness of the inner cover plate 20 is thinner. By stacking the outer cover plate 10 on the inner cover plate 20 , the thickness of the area of the casing 100 outside the through hole 30 is increased, thereby enhancing the overall strength of the casing 100 . The thickness of the outer cover plate 10 may be greater than the thickness of the inner cover plate 20 to reinforce the inner cover plate 20 . In order to facilitate the user's finger 01 to collide with the inner cover plate 20 through the through hole 30, a chamfer 31 is provided at the open end of the through hole 30 away from the inner cover plate 20, and the chamfer 31 may be a circular arc. The angle may also be an inclined chamfer, so as to prevent the user's finger 01 from being scratched by the angle between the inner side wall of the through hole 30 and the outer surface of the outer cover plate 10 . Of course, in other embodiments, the thickness of the outer cover plate 10 may be smaller than the thickness of the inner cover plate 20 .

In the second embodiment, the through hole 30 is opened in the inner cover plate 20 . The inner cover plate 20 is made of plastic material, so that the through hole 30 can be formed by an injection molding process. The outer cover plate 10 is made of complete aluminum silicon tempered glass. The outer cover plate 10 covers the through hole 30 . The fingerprint chip 40 is attached to the outer cover plate 10 through the through hole 30 , and the user's fingerprint collides with the outer cover plate 10 opposite the through hole 30 . The fingerprint chip 40 collects the user's fingerprint through the outer cover plate 10 , so that the thickness of the outer cover plate 10 is relatively thin. By stacking the inner cover plate 20 on the outer cover plate 10 , the thickness of the area of the casing 100 outside the through hole 30 is increased, thereby enhancing the overall strength of the casing 100 . The thickness of the inner cover plate 20 may be greater than the thickness of the outer cover plate 10 to reinforce the outer cover plate 10 . In order to conveniently install the fingerprint chip 40 into the through hole 30 and attach it to the outer cover plate 10 , a chamfer 32 is provided at the open end of the through hole 30 away from the outer cover plate 10 . 32 may be a circular arc chamfering or an inclined chamfering, so as to prevent the fingerprint chip 40 from being scratched by the angle between the inner side wall of the through hole 30 and the outer surface of the inner cover plate 20 . Of course, in other embodiments, the thickness of the inner cover plate 20 may also be smaller than the thickness of the outer cover plate 10 .

Further, the thickness of the inner cover plate 20 opposite to the through hole 30 of the outer cover plate 10 is less than or equal to 0.4 mm, or the thickness of the outer cover plate 10 and the through hole 30 of the inner cover plate 20 is less than or equal to 0.4 mm. The thickness at the opposite position is less than or equal to 0.4mm.

In the first embodiment, the inner cover 20 is a flat plate. The thickness of the inner cover plate 20 opposite to the through hole 30 is the same as the thickness opposite to the outside of the through hole 30 . That is, the overall thickness of the inner cover plate 20 is less than or equal to 0.4 mm. Therefore, the distance from the fingerprint chip 40 of the user's fingerprint against the inner cover 20 through the through hole 30 is less than or equal to 0.4 mm. Therefore, most of the fingerprint chips 40 can collect user fingerprints through the inner cover plate 20 at present. As a preferred embodiment, the overall thickness of the inner cover plate 20 is 0.3 mm. On the one hand, the penetration distance of the fingerprint chip 40 to collect fingerprint signals is reduced, so as to improve the fingerprint acquisition performance; on the other hand, the overall thickness of the casing 100 is not increased, thereby improving the user experience.

In the second embodiment, the outer cover 10 is a flat panel. The thickness of the outer cover plate 10 opposite to the through hole 30 is the same as the thickness opposite to the outside of the through hole 30 . That is, the overall thickness of the outer cover plate 10 is less than or equal to 0.4 mm. Therefore, the distance from the fingerprint chip 40 of the user's fingerprint against the outer cover 10 is less than or equal to 0.4 mm. Therefore, most of the fingerprint chips 40 at present can collect user fingerprints through the outer cover plate 10 . As a preferred embodiment, the overall thickness of the outer cover plate 10 is 0.3 mm. On the one hand, the penetration distance of the fingerprint chip 40 to collect fingerprint signals is reduced, so as to improve the fingerprint acquisition performance; on the other hand, the overall thickness of the casing 100 is not increased, thereby improving the user experience.

Further, the thickness of the casing 100 is greater than or equal to 0.5 mm.

In this embodiment, the thickness of the casing 100 is equal to the thickness of the outer cover plate 10 plus the thickness of the inner cover plate 20 , plus the thickness of the outer cover plate 10 and the inner cover plate 20 . The thickness of the gap can be ignored due to the small thickness of the gap between the outer cover plate 10 and the inner cover plate 20 . Therefore, the thickness of the casing 100 can be regarded as the thickness of the outer cover plate 10 plus the thickness of the inner cover plate 20 . In the first embodiment, since the thickness of the inner cover plate 20 is less than or equal to 0.4 mm, the thickness of the outer cover plate 10 is greater than or equal to 0.1 mm. In the second embodiment, since the thickness of the outer cover plate 10 is less than or equal to 0.4 mm, the thickness of the inner cover plate 20 is greater than or equal to 0.1 mm.

Further, please refer to FIG. 3 to FIG. 6 , the outer cover 10 has an outer surface 11 facing the user, the outer surface 11 has a display area 111 and a non-display area 112 , the display area 111 is used to transmit the display screen The through hole 30 is opened in the non-display area 111 of the outer cover plate 10 , or is opened at the opposite position of the inner cover plate 20 and the non-display area 111 .

In this embodiment, the casing 100 is a cover plate of a display screen of a mobile phone. Both the outer cover plate 10 and the inner cover plate 20 are made of light-transmitting materials. In the first embodiment and the second embodiment, the length and width of the outer cover plate 10 and the length and width of the inner cover plate 20 are the same. That is, the outer cover plate 10 and the inner cover plate 20 are completely overlapped. The inner cover plate 20 is stacked with the outer cover plate 10 in both the display area 111 and the non-display area 112 of the outer cover plate 10 . Therefore, the outer cover plate 10 and the inner cover plate 20 can be easily processed and the production cost can be reduced. The non-display area 111 is located below the display area 112 , so that it is convenient for the user's finger 01 to approach the fingerprint chip 40 .

Specifically, in the first embodiment, please refer to FIG. 3 and FIG. 4 together, the outer cover 10 further includes a first bonding surface 12 disposed opposite to the outer surface 11 . The first bonding surface 12 is a flat surface. The first bonding surface 12 is bonded to the inner cover plate 20 . The through hole 30 extends from the non-display area 111 of the outer surface 11 to the first bonding surface 12 . The inner cover 20 includes a second adhering surface 21 that adheres to the first adhering surface 12 , and an inner surface 22 that is opposite to the second adhering surface 21 . The second bonding surface 21 and the first bonding surface 12 are bonded by the optical adhesive 10a, so as to ensure the stability of the outer cover plate 10 and the inner cover plate 20 on the one hand, On the other hand, the light transmittance between the outer cover plate 10 and the outer cover plate 20 is also ensured. The optical adhesive 10 a is provided with a hollow 10 b relative to the through hole 30 , so as to facilitate the user to access the inner cover 20 . The second bonding surface 21 is a flat surface. The fingerprint chip 40 is attached to the inner surface 22 opposite to the through hole 30 . After the user's finger passes through the through hole 30 , the finger touches the second bonding surface 21 and faces the fingerprint chip 40 , and the fingerprint chip 40 obtains the user's fingerprint information through the inner cover 20 .

In the second embodiment, please refer to FIG. 5 and FIG. 6 together, the through hole 30 is opened at the second bonding surface 21 opposite to the non-display area 111 , and is formed by the second bonding surface 21 extends to the inner surface 22 . The fingerprint chip 40 is attached to the first attachment surface 12 of the outer cover plate 10 through the through hole 30 . The user's finger touches the outer surface 11 opposite to the through hole 30 , so that the fingerprint chip 40 obtains the user's fingerprint information through the outer cover plate 10 .

Three embodiments are provided, which are substantially the same as the first embodiment, please refer to FIG. 7 , the difference is that the outer cover plate 10 and the inner cover plate 20 are partially stacked. The orthographic projection area of the outer surface 11 of the inner cover plate 20 and the non-display area 111 coincide with the outer surface 11 of the outer cover plate 10 . Specifically, the outer cover plate 10 is disposed in the groove 13 opposite to the non-display area 111 on the side opposite to the outer surface 11 , and the inner cover plate 20 is connected to the groove 13 at the groove 13 . The outer cover plates 10 are stacked. The through hole 30 extends from the outer surface 11 to the groove 13 and communicates with the groove 13 . The depth of the groove 13 is equal to the thickness of the inner cover 20 . The first bonding surface 21 is disposed at the bottom of the groove 13 and is opposite to the non-display area 111 . The outer cover 20 further includes a display screen bonding surface 14 opposite to the display area 112 . The display screen attaching surface 14 is used for attaching the display screen. The display screen bonding surface 14 is flush with the inner surface 22 of the inner cover 20 . The outer cover 10 is used to set the groove 13 opposite to the non-display area 111 , so that the inner cover 20 is only stacked on the outer cover 20 at the position opposite to the non-display area 111 , In this way, the layered structure of the casing 100 in the display area 112 is avoided, thereby preventing the layered structure from affecting the light transmission performance of the display screen, that is, improving the transparency of the casing 100 in the display area 112 . Display performance while ensuring the overall strength of the casing 100 . Of course, in other embodiments, the thickness of the inner cover plate 20 may also be greater than the depth of the groove 13 , and the inner surface 22 may also protrude relative to the display screen bonding surface 14 .

Further, please refer to FIG. 3 to FIG. 6 , the casing 100 further includes an ink layer 50 , and the ink layer 50 is laminated on the side of the outer cover 10 opposite to the outer surface 11 , and is on the side of the outer cover 10 . The orthographic projection area of the outer surface 11 coincides with the non-display area 111 .

In the first embodiment, the ink layer 50 is laminated on the side of the inner cover plate 20 opposite to the outer cover plate 10 , and the ink layer 50 covers all parts of the orthographic projection area of the outer cover plate 10 . The through hole 30 of the outer cover plate 10 is described. Specifically, the ink layer 50 is printed on the inner surface 22 of the inner cover plate 20 through a screen printing process. Of course, in other embodiments, an additional ink layer may be printed on the first bonding surface 12 of the outer cover plate 10 .

In the second embodiment, the ink layer 50 is stacked between the outer cover plate 10 and the inner cover plate 20 , and the ink layer 50 covers the through holes 30 of the inner cover plate 20 . Specifically, the ink layer 50 is printed on the first bonding surface 12 of the outer cover plate 10 through a screen printing process, and the inner cover plate 20 is bonded to the ink layer 50 and is connected to the outer side. The cover plate 10 is combined. Of course, in other embodiments, an additional ink layer may be printed on the second bonding surface 22 of the inner cover plate 20 .

Please refer to 8 and FIG. 9, the present invention further provides a fingerprint module 200, the fingerprint module 200 includes the housing 100, the fingerprint module 200 further includes a fingerprint chip 40, and the fingerprint chip 40 is attached The inner cover 10 is attached to the outer cover 10 at the position of the inner cover 10 opposite to the through hole 30 of the outer cover 20 , or through the through hole 30 of the inner cover 20 .

In the first embodiment, the fingerprint chip 40 is attached to the inner surface 22 of the inner cover 10 opposite to the through hole 30 . The fingerprint module 200 further includes a substrate 60 welded with the fingerprint chip 40 and a circuit board 70 electrically connected to the substrate 60 . The circuit board 70 is a flexible circuit board. Of course, in other embodiments, the circuit board 70 may also be a printed circuit board.

The second embodiment is substantially the same as the first embodiment, except that the fingerprint chip 40 is attached to the first attachment surface 12 of the outer cover plate 10 through the through hole 30 .

Referring to FIG. 10 , the present invention further provides a mobile terminal 300 , the mobile terminal 300 includes the fingerprint module 200 , the mobile terminal 300 further includes a terminal body 301 and a main board 302 fixed to the terminal body 301 . The casing 100 is covered with the terminal body 301 , and the fingerprint chip 40 is electrically connected to the main board 302 via the circuit board 70 . The fingerprint chip 40 receives the user fingerprint information through the inner cover 20 or the outer cover 10, and transmits it to the main board 302, and the main board 302 controls the operation of the mobile terminal 300 according to the user fingerprint information. The mobile terminal 300 may be an intelligent mobile terminal such as a mobile phone, a computer, a tablet, a handheld game console or a media player.

In the case, fingerprint module and mobile terminal provided by the present invention, the case includes an outer cover plate and an inner cover plate that are stacked on each other, and the outer cover plate or the inner cover plate is provided with a through hole, thereby ensuring that The casing reduces the distance between the fingerprint chip and the user's fingerprint at the through hole, which facilitates the fingerprint chip to collect fingerprint information. In addition, the through hole only causes stress damage to the outer cover plate or the inner cover plate, and the shell can be stress reinforced by using the inner cover plate without through holes or the outer cover plate without through holes , thereby improving the production yield of the casing.

The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above-mentioned embodiments shall be included within the protection scope of this technical solution.

Claims (9)

1. A casing, characterized in that the casing comprises an outer cover plate and an inner cover plate whose upper and lower parts are stacked and adhered to each other; the outer surface of the outer cover plate facing a user has a display area and a non-display area, The outer cover plate is provided with a through hole penetrating the non-display area, the orthographic projection area of the inner cover plate on the outer surface of the outer cover plate coincides with the non-display area, and the outer cover plate is in the same direction as the non-display area. The opposite side of the outer surface of the outer cover plate is arranged in a groove opposite to the non-display area, the inner cover plate is stacked with the outer cover plate at the groove, and the through hole is formed by the The outer surface extends to the groove and communicates with the groove; the inner cover plate is used to attach the fingerprint chip at the opposite position of the through hole of the outer cover plate, so that the fingerprint chip is attached In the inner cover plate, the through hole is provided with a circular arc chamfer or an inclined chamfer at the open end of the through hole away from the inner cover plate. 2 . The casing according to claim 1 , wherein the thickness of the inner cover plate opposite to the through hole of the outer cover plate is less than or equal to 0.4 mm, or the outer cover plate is at a position opposite to the through hole of the outer cover plate. 3 . The thickness of the opposite through holes of the inner cover plate is less than or equal to 0.4mm. 3. The casing according to claim 1, wherein the thickness of the casing is greater than or equal to 0.5 mm. 4. The casing according to any one of claims 1 to 3, wherein the display area is used to transmit a display image of a display screen. 5 . The casing according to claim 4 , wherein the casing further comprises an ink layer, the ink layer is laminated on the side of the outer cover plate opposite to the outer surface, and is disposed on the outer cover. 6 . The orthographic projection area of the surface coincides with the non-display area. 6 . The casing of claim 5 , wherein the ink layer is stacked between the outer cover plate and the inner cover plate, and the ink layer covers the through holes of the inner cover plate. 7 . 7 . The casing of claim 5 , wherein the ink layer is laminated on the opposite side of the inner cover plate and the outer cover plate, and the ink layer is on the positive side of the outer cover plate. 8 . The projection area covers the through holes of the outer cover plate. 8 . A fingerprint module, characterized in that the fingerprint module comprises the casing according to any one of claims 1 to 7 , the fingerprint module further comprises a fingerprint chip, and the fingerprint chip is attached to the The inner cover is attached to the outer cover at the position opposite to the through hole of the outer cover, or through the through hole of the inner cover. 9 . A mobile terminal, wherein the mobile terminal comprises the fingerprint module of claim 8 . 10 .

Images