A terminal device

Abstract

The present invention discloses a terminal device, which includes a housing, a screen, a fingerprint module, and a cover plate fixed on the housing, wherein the screen includes a display layer attached to the lower surface of the cover plate, and a backlight layer located below the display layer, wherein the backlight layer is provided with a through hole, the fingerprint module is located between the backlight layer and the housing, and the upper surface periphery of the fingerprint film group forms a support portion, the upper surface of the fingerprint module located inside the support portion forms a fingerprint recognition area, the fingerprint recognition area is directly opposite to the through hole, and the lower surface of the fingerprint module is supported on the housing; a connector surrounding the periphery of the fingerprint recognition area is embedded in the through hole, the upper surface of the connector is connected to the lower surface of the display layer, and the lower surface of the connector is connected to the support portion. The present invention utilizes a connector to support between the display layer of the screen and the fingerprint module, avoids directly attaching the fingerprint module to the screen, prevents the fingerprint module from directly contacting the screen and causing damage to the screen, and improves the recognition accuracy of the fingerprint module.

Description

Technical Field

[0001] The present invention relates to the field of electronic technology, and in particular to a terminal device. Background Art

[0002] With the continuous development of fingerprint recognition technology, most of the current mobile phones, pads and other terminal devices have gradually adopted fingerprint recognition technology. In order to obtain a larger screen-to-body ratio, some terminal devices place the fingerprint module under the display screen. During assembly, the fingerprint module is directly attached to the screen, which has high requirements for the bonding accuracy and environment, and is easy to cause damage to the screen; some terminal devices also attach the fingerprint module to the shell, however, affected by the processing error and positioning accuracy of the shell itself, it is easy to cause the bonding accuracy of the fingerprint film group to decrease, thereby affecting the recognition accuracy of the fingerprint module when in use. Summary of the invention

[0003] The main purpose of the present invention is to provide a terminal device, which can effectively solve the problem of low recognition accuracy of the fingerprint module and avoid damage to the screen during assembly.

[0004] To achieve the above object, the present invention

[0005] A terminal device comprises a shell, a screen, a fingerprint module, and a cover plate fixed on the shell, wherein the screen comprises a display layer attached to the lower surface of the cover plate, and a backlight layer located below the display layer, wherein the backlight layer is provided with a through hole, the fingerprint module is located between the backlight layer and the shell, and a support portion is formed on the periphery of the upper surface of the fingerprint film group, and a fingerprint recognition area is formed on the upper surface of the fingerprint module located inside the support portion, and the fingerprint recognition area faces the through hole, and the lower surface of the fingerprint module is supported on the shell; a connector surrounding the periphery of the fingerprint recognition area is embedded in the through hole, and the upper surface of the connector is connected to the lower surface of the display layer, and the lower surface of the connector is connected to the support portion.

[0006] Preferably, a buffer pad is provided between the housing and the lower surface of the fingerprint module.

[0007] Preferably, a recess is provided on the housing, the buffer pad and at least a portion of the fingerprint module are embedded in the recess, and the periphery of the fingerprint module is gap-matched with the side wall of the recess.

[0008] Preferably, a light-shielding film is attached to the lower surface of the display layer, the light-shielding film covers the backlight layer at a position around the through hole, and an avoidance hole for avoiding the fingerprint recognition area is provided on the light-shielding film.

[0009] Preferably, the upper surface of the connecting member is bonded to the lower surface of the shading film, and the lower surface of the connecting member is bonded to the supporting portion.

[0010] Preferably, the connecting member includes a substrate, a first adhesive layer located on an upper surface of the substrate and bonded to the light-shielding film, and a second adhesive layer located on a lower surface of the substrate and bonded to the supporting portion.

[0011] Preferably, a supporting surface is disposed on the periphery of the shell, and a protrusion protruding from the edge of the display layer is disposed on the periphery of the cover plate, and the protrusion is fixed on the supporting surface.

[0012] The technical solution of the present invention is to open a through hole on the backlight layer of the screen, use a connecting piece to support between the display layer of the screen and the fingerprint module, fix the fingerprint module, avoid directly attaching the fingerprint module to the screen, and prevent the fingerprint module from directly contacting the screen and causing damage to the screen. At the same time, the connecting piece is used to ensure the matching accuracy of the fingerprint module and the screen, and the shell is only used to support the fingerprint module, thereby improving the recognition accuracy of the fingerprint module. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 is a cross-sectional view of the present invention;

[0016] Figure 3 for Figure 2 Magnified view at A in the middle.

[0017] Description of Figure Numbers:

[0018]

[0019]

[0020] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, etc.) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0023] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] like Figure 1 , 2 As shown in , 3, a terminal device of the present invention includes a shell 10, a screen, a fingerprint module 30, and a cover plate 20. The cover plate 20 is fixed on the shell 10, and the screen and the fingerprint module 30 are located between the cover plate 20 and the shell 10. The screen includes a display layer 51 and a backlight layer 52 attached to the bottom of the display layer 51. Similar to the prior art, the cover plate 20 can be made of translucent glass, and the backlight layer 52 is composed of a backlight film, a reflective film, a heat dissipation film, a shielding film, etc. In the present invention, a through hole 521 is provided on the backlight layer 52, and the fingerprint module 30 is located between the screen and the housing 10, that is, the fingerprint module 30 is located between the backlight layer 52 and the housing 10, and a support portion 31 is formed on the periphery of the upper surface of the fingerprint module 30, that is, the support portion 31 forms a closed ring structure on the upper surface of the fingerprint module 30, and the part of the upper surface of the fingerprint module 30 located inside the support portion 31 forms a fingerprint recognition area 32, and the fingerprint recognition area 32 is arranged opposite to the through hole 521, that is, the through hole 521 is used to avoid the fingerprint recognition area 32. The lower surface 33 of the fingerprint module 30 is supported on the housing 10. A connecting member 40 is embedded in the through hole 521, and the upper surface of the connecting member 40 is connected to the lower surface of the display layer 51, and the lower surface of the connecting member 40 is connected to the support portion 31, so that the fingerprint film group 30 is fixed between the housing 10 and the cover plate 20.

[0025] Compared with the prior art, the present invention opens a through hole on the backlight layer of the screen, and uses a connecting piece to support between the display layer of the screen and the fingerprint module to fix the fingerprint module, thereby avoiding directly attaching the fingerprint module to the screen and preventing the fingerprint module from directly contacting the screen and causing damage to the screen. At the same time, the connecting piece is used to ensure the matching accuracy between the fingerprint module and the screen, and the shell is only used to support the fingerprint module, thereby improving the recognition accuracy of the fingerprint module.

[0026] In a preferred embodiment, the present invention further provides a buffer pad 60 between the housing 10 and the lower surface of the fingerprint module 30. The buffer pad 60 may be a foam pad, and its upper and lower surfaces are respectively attached to the lower surface of the fingerprint module 30 and the housing 10. The buffer pad 60 is used to play a buffering role between the housing 10 and the fingerprint module 30 to prevent the housing 10 of the terminal device from affecting the fingerprint module 30 when subjected to external force. At the same time, the buffer pad 60 can press the fingerprint film group 30 to prevent the thinner fingerprint module from warping. Further, a concave position 11 is provided on the housing 10, and the buffer pad 60 is embedded in the concave position 11. At the same time, at least a part of the fingerprint module 30 is also embedded in the concave position 11. In this way, the height of the lower surface of the fingerprint module 30 can be reduced, and then the thickness of the entire terminal device can be reduced. At the same time, it is beneficial to increase the thickness of the buffer pad 60, so that the buffer pad 60 can play a more buffering and supporting effect on the fingerprint film group 30. In addition, the periphery of the fingerprint module 30 is gap-matched with the sidewall of the recess 11 to prevent the fingerprint module 30 from being affected when the housing 10 is impacted by external force.

[0027] In another preferred embodiment, the present invention has a shading film 53 attached to the lower surface of the display layer 51, the shading film 53 is located between the display layer 51 and the backlight layer 52, and the shading film 53 covers the position of the backlight layer 52 located at the periphery of the through hole 521, and the shading film 53 is provided with an avoidance hole facing the fingerprint recognition area 32 of the fingerprint module 30. The shading film 53 can be regarded as a closed annular structure, one part of which is located above the outer side of the edge of the through hole 521, and the other part is located Above the inner side of the edge of the through hole 521, the other part of the light shielding film 53 extends to the through hole 521 and covers the support part 31 of the fingerprint film group 30. The avoidance hole on the light shielding film 53 is slightly larger than the fingerprint recognition area 32 of the fingerprint module 30. The light shielding film 53 can avoid the interference of the light emitted by the display layer 51 on the fingerprint recognition area 32. At the same time, the light shielding film 53 is used to block the support part 31 outside the fingerprint recognition area 32 to prevent the support part 31 and the housing 10 from being seen from the screen. Further, the upper surface of the connector 40 is bonded to the lower surface of the light shielding film 53, and the lower surface of the connector 40 is bonded to the support part 31. The connecting member 40 includes a substrate 41, a first adhesive layer 42, and a second adhesive layer 43. The first adhesive layer 42 is located on the upper surface of the substrate 40 and is bonded to the shading film 53. The second adhesive layer 43 is located on the lower surface of the substrate 40 and is bonded to the supporting portion 31. The substrate 41 can play a buffering role. The first adhesive layer 42 can be composed of weak adhesive. The substrate 41 and the shading film 53 are bonded with the weak adhesive. During rework, the shading film 53 will not be affected. At the same time, the backlight layer 52 can be prevented from wrinkling due to the inconsistent deformation trends of the connecting member 40 and the backlight layer 52.

[0028] In the present invention, a supporting surface 12 is disposed on the periphery of the housing 10 , and the periphery of the cover plate 20 protrudes from the edge of the display layer 51 to form a protrusion, which is overlapped and fixed on the supporting surface 12 .

[0029] It should be noted that the terminal device of the present invention can be a mobile phone, a pad, a smart wearable device, etc.

[0030] The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A terminal device, characterized in that: The invention comprises a shell, a screen, a fingerprint module, and a cover plate fixed on the shell, wherein the screen comprises a display layer attached to the lower surface of the cover plate, and a backlight layer located below the display layer, wherein the backlight layer is provided with a through hole, the fingerprint module is located between the backlight layer and the shell, and a support portion is formed at the periphery of the upper surface of the fingerprint film group, and a fingerprint recognition area is formed on the upper surface of the fingerprint module located inside the support portion, the fingerprint recognition area is directly opposite to the through hole, and the lower surface of the fingerprint module is supported on the shell; a connector surrounding the periphery of the fingerprint recognition area is embedded in the through hole, the upper surface of the connector is connected to the lower surface of the display layer, and the lower surface of the connector is connected to the support portion; the connector comprises a substrate, a first adhesive layer and a second adhesive layer, the first adhesive layer is located on the upper surface of the substrate and is used to bond the screen, and the second adhesive layer is located on the lower surface of the substrate and is used to bond the support portion.

2. The terminal device according to claim 1, characterized in that: A buffer pad is arranged between the shell and the lower surface of the fingerprint module.

3. The terminal device according to claim 2, characterized in that: The housing is provided with a concave position, the buffer pad and at least a part of the fingerprint film group are embedded in the concave position, and the periphery of the fingerprint module group is gap-matched with the side wall of the concave position.

4. The terminal device according to claim 1, characterized in that: A light-shielding film is attached to the lower surface of the display layer. The light-shielding film covers the position of the backlight layer located at the periphery of the through hole, and an avoidance hole for avoiding the fingerprint recognition area is arranged on the light-shielding film.

5. The terminal device according to claim 4, characterized in that: The upper surface of the connecting member is bonded to the lower surface of the light shielding film, and the lower surface of the connecting member is bonded to the supporting portion.

6. The terminal device according to claim 1, characterized in that: The periphery of the shell is provided with a supporting surface, the periphery of the cover plate is provided with a protruding portion protruding from the edge of the display layer, and the protruding portion is fixed on the supporting surface.

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