Light-emitting fingerprint module and electronic equipment

Abstract

The utility model discloses a luminous fingerprint module and an electronic device, and relates to the field of biological identification, the luminous fingerprint module comprises a backlight rubber shell, a groove is arranged on the backlight rubber shell, a fingerprint module is embedded in the groove, a reflector and a light guide plate are sequentially laminated on the surface of the backlight rubber shell, a backlight source is electrically connected with a backlight FPC, and the backlight FPC is electrically connected with the fingerprint module. According to the utility model, the fingerprint module is embedded into the backlight rubber shell and can be placed at any position of the rubber shell corresponding to the VA area, so that the thickness increase is avoided, the process preparation is simple, the production and preparation are easy, the yield is high, the cost is low, the product competitiveness is improved, the fingerprint module can be applied to the field without a cover plate or an LCD (Liquid Crystal Display) display, the application range is widened, and the cost is reduced. The prepared electronic product does not need a display or touch control function, such as an access control card, can be of an ultrathin structure, and is convenient to carry and use.

Description

Technical Field

[0001] The utility model relates to the technical field of biometric identification, in particular to a luminous fingerprint module and electronic equipment. Background Art

[0002] With the progress of society and the improvement of science and technology, people have higher and higher requirements for the safety and convenience of life. Since human fingerprints are formed by the interaction of genetics and environment, their complexity is not only used for identification, but also has uniqueness and invariance. Therefore, fingerprint recognition is used as an encryption method adopted by some terminal devices, which has good security performance, facilitates the identification process to be simple and fast, and is convenient for operators to use.

[0003] Currently, in electronic devices such as mobile phones, a groove is made on the display screen and the fingerprint module is embedded in the groove, such as patent application number 201910085501 .7 discloses an LCD display screen, comprising: a backlight module, the backlight module having a front side and a back side opposite to the front side, the backlight module having a groove running through the front side, the front side of the backlight module including a backlight light-emitting area and a backlight non-light-emitting area, and the groove being located in the backlight non-light-emitting area; a luminous fingerprint module located in the groove, the luminous fingerprint module including a luminous module and an optical fingerprint module, the luminous module being used to provide outgoing light above the backlight non-light-emitting area, and also being used to provide incident light required for the optical fingerprint module to obtain a reflected optical signal, the optical fingerprint module being used to collect a reflected optical signal with fingerprint information; a display function layer located on the front side of the backlight module and above the luminous fingerprint module; enabling the application of under-screen fingerprint technology to LCD display screens; but in the pursuit of thinness, making a groove on the bottom surface of the display screen has a complex structure and process and a low yield, and also increases the overall thickness, making it inconvenient to make it thin, and is not conducive to product competition. Therefore, the utility model discloses a luminous fingerprint module and an electronic device to solve the above problems. Utility Model Content

[0004] Based on this, it is necessary to provide a luminous fingerprint module and electronic device to address the above technical problems. The fingerprint module is embedded in the backlight plastic shell and can be placed at any position of the plastic shell corresponding to the VA area, thereby avoiding the increase of thickness. The process is simple and easy to produce. The yield rate is high and the cost is low, which improves the product competitiveness. It can be applied to fields that do not require a cover or LCD display, broadens the application range, and the prepared electronic products do not require display or touch functions, such as access control cards, etc., and can have an ultra-thin structure, which is easy to carry and use.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A luminous fingerprint module comprises a backlight plastic shell, the backlight plastic shell is provided with a groove, the fingerprint module is embedded in the groove, and a reflective sheet, a light guide plate and a backlight source are sequentially stacked on the surface of the backlight plastic shell, which are electrically connected to a backlight FPC.

[0007] As a preferred implementation of the luminous fingerprint module provided by the utility model, the backlight plastic shell includes a visible area and a non-visible area, and the groove is arranged in the visible area.

[0008] As a preferred embodiment of the luminous fingerprint module provided by the utility model, the backlight plastic shell includes a base plate and a surrounding frame, the surrounding frame is integrally arranged on the upper surface of the base plate, the groove is arranged on the upper surface of the base plate, and the groove extends to the outer side of the surrounding frame.

[0009] As a preferred implementation of the luminous fingerprint module provided by the utility model, an extension portion is provided on the light guide plate to form a downward "convex" structure, and the extension portion overlaps the upper surface of the surrounding frame.

[0010] As a preferred implementation of the luminous fingerprint module provided by the utility model, a gap is left between the light guide plate and the surrounding frame, and the backlight source is arranged in the gap.

[0011] As a preferred embodiment of the luminous fingerprint module provided by the utility model, it also includes a fingerprint FPC, which is electrically connected to the fingerprint module, and the fingerprint FPC is placed in the groove and extends from one side of the backlight plastic shell.

[0012] As a preferred implementation of the luminous fingerprint module provided by the utility model, the backlight source is arranged on one side of the light guide plate or is arranged at intervals around the light guide plate.

[0013] As a preferred embodiment of the luminous fingerprint module provided by the utility model, it also includes a decorative film, and the decorative film is attached to the surface of the light guide plate.

[0014] As a preferred embodiment of the luminous fingerprint module provided by the utility model, it also includes a display panel, and the display panel is covered on the surface of the light guide plate.

[0015] The utility model also provides an electronic device, which comprises the above-mentioned luminous fingerprint module.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model provides a luminous fingerprint module, which embeds the fingerprint module into a backlight plastic shell and can be placed at any position of the plastic shell corresponding to the VA area, thereby avoiding an increase in thickness. The process preparation is simple, the production and preparation are easy, the yield rate is high, the cost is low, and the product competitiveness is improved. The fingerprint module can be applied to fields that do not require a cover plate or LCD display, thereby broadening the application range.

[0018] The utility model provides an electronic device, in which a fingerprint module is embedded in a backlight plastic shell. The prepared electronic product does not need a display or touch function, such as an access card, and can have an ultra-thin structure, which is easy to carry and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the scheme in the utility model, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 A schematic side view of the overall structure of a luminous fingerprint module provided by the utility model;

[0021] Figure 2 A schematic diagram of the overall structure of a luminous fingerprint module provided by the utility model;

[0022] Figure 3 This is a side view of a backlight plastic shell in a luminous fingerprint module provided by the utility model;

[0023] Figure 4 A schematic plan view of a backlight plastic shell in a luminous fingerprint module provided by the utility model;

[0024] Figure 5 A schematic diagram of fingerprint module installation in a luminous fingerprint module provided by the utility model;

[0025] Figure 6 A schematic plan view of a decorative film in a luminous fingerprint module provided by the utility model;

[0026] Figure 7 A structural schematic diagram of a luminous fingerprint module with a display panel provided by the utility model.

[0027] The markings in the figure are as follows:

[0028] 1. Backlight plastic shell; 101. Groove; 1011. Fingerprint module groove; 1012. Fingerprint FPC groove; 102. Bottom plate; 103. Frame; 2. Fingerprint module; 3. Reflector; 4. Light guide plate; 401. Extension; 5. Backlight source; 6. Backlight FPC; 7. Fingerprint FPC; 8. Visible area; 9. Invisible area; 10. Gap; 11. Decorative film; 1101. Fingerprint area; 12. Display panel. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0030] As described in the background art, in pursuit of thinness, a groove is made on the bottom of the display screen. This structural process is complex and has a low yield rate. It also increases the overall thickness, making it difficult to make thinner and disadvantageous to product competition.

[0031] In order to solve this technical problem, the utility model provides a luminous fingerprint module and an electronic device, which are applied to the field of display modules.

[0032] Specifically, please refer to Figure 1-6 The luminous fingerprint module specifically includes a backlight plastic shell 1, a groove 101 is arranged on the backlight plastic shell 1, a fingerprint module 2 is embedded in the groove 101, and a reflective sheet and a light guide plate 4 and a backlight source 5 are arranged in sequence on the surface of the backlight plastic shell 1, which are electrically connected to the backlight FPC 6.

[0033] The electronic device includes the above-mentioned luminous fingerprint module 2.

[0034] The utility model provides a luminous fingerprint module and electronic device, wherein the fingerprint module 2 is embedded in a backlight plastic shell 1, and can be placed at any position of the plastic shell corresponding to the VA area, thereby avoiding an increase in thickness. The process preparation is simple, the production and preparation are easy, the yield rate is high, the cost is low, and the product competitiveness is improved. The utility model can be applied to fields that do not require a cover plate or LCD display, thus broadening the application range. The prepared electronic products do not require display or touch functions, such as access control cards, etc., and can have an ultra-thin structure, which is easy to carry and use.

[0035] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiments of the utility model will be clearly and completely described below in conjunction with the accompanying drawings.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0037] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0038] Example 1

[0039] Please refer to Figure 1-6 , a luminous fingerprint module is provided, which includes a backlight plastic shell 1. When the backlight plastic shell 1 is injected, a groove 101 is reserved on the upper surface of the backlight plastic shell 1. The groove 101 includes a fingerprint module groove 1011 and a fingerprint FPC groove 1012, and the groove 101 extends to the outside of the backlight plastic shell 1 to form an FPC outlet structure. A fingerprint module 2 is embedded in the groove 101. The fingerprint module 2 includes a fingerprint sensing IC. A reflective sheet 3 and a light guide plate 4 are stacked in sequence on the surface of the backlight plastic shell 1. The reflective sheet 3 covers the surface of the backlight plastic shell 1 and can completely block the fingerprint module 2. The light guide plate 4 is covered on the surface of the reflective sheet 3. A backlight source 5 is also provided in the backlight plastic shell 1. The backlight source 5 is electrically connected to the backlight FPC6. The backlight FPC6 is connected to the controller. The backlight source 5 uses an LED lamp. The color of the backlight source 5 is white, green or other colors. The color of the backlight source 5 can be freely set according to needs. It only needs to replace the corresponding LED lamp.

[0040] The fingerprint FPC 7 is built into the groove 101 , and the fingerprint FPC 7 is electrically connected to the fingerprint module 2 . The fingerprint FPC 7 is placed in the groove 101 and extends from one side of the backlight plastic shell 1 , so as to facilitate the electrical connection between the fingerprint FPC 7 and the controller.

[0041] like Figure 3-4 As shown, after the backlight plastic shell 1 is installed in the housing, a visible area 8 and an invisible area 9 are formed, and the groove 101 is set at any position of the visible area 8, so that the fingerprint module 2 is set at the position of the visible area 8, without increasing the thickness of the electronic device, and it is more convenient to make the electronic device thinner. The backlight plastic shell 1 includes a bottom plate 102 and a surrounding frame 103, the surrounding frame 103 is integrally arranged on the upper surface of the bottom plate 102, and the surrounding frame 103 is arranged around the bottom plate 102, the groove 101 is arranged on the upper surface of the bottom plate 102, and the groove 101 extends to the outer side of the surrounding frame 103, so as to facilitate the fingerprint FPC 7 to be led out of the backlight plastic shell 1.

[0042] Example 2

[0043] The luminous fingerprint module provided in Example 1 is further optimized, specifically, as follows: Figure 1 , 2As shown, an extension portion 401 is provided on the light guide plate 4, so that the light guide plate 4 forms a downward "convex" structure, and the extension portion 401 overlaps the upper surface of the surrounding frame 103, and after the extension portion 401 overlaps the surrounding frame 103, the outer side surface of the extension portion 401 is flush with the outer side surface of the corresponding side surrounding frame 103. After the backlight plastic shell 1 is installed in the outer shell, the flatness of the control surface can be ensured, which is convenient for the installation of the cover plate or display panel 12. At the same time, a gap 10 is left between the light guide plate 4 and the surrounding frame 103, and the backlight source 5 is arranged in the gap 10, and the backlight source 5 is arranged on one side of the light guide plate 4 or is arranged at intervals around the light guide plate 4. In this example, the backlight source 5 is arranged on one side of the light guide plate 4.

[0044] Example 3

[0045] The luminous fingerprint module provided in Example 2 is further optimized. Specifically, as an implementation method, Figure 1 , 6 As shown, in this example, a layer of decorative film 11 is directly attached to the upper surface of the light guide plate 4 to complete an economical luminous fingerprint module without LCD display, which can be used in electronic devices such as access control and fingerprint locks that do not require display or touch functions. The decorative film 11 is a transparent film and is provided with a fingerprint area 1101. At the same time, a pattern is silk-screened on the fingerprint area 1101 to facilitate rapid identification of the fingerprint area 1101. The decorative film 11 except the fingerprint area 1101 can be silk-screened with a layer of black ink to achieve a shading effect. When in use, brightness is displayed only in the fingerprint area 1101, which is more convenient for the fingerprint area 1101.

[0046] As another embodiment, Figure 7 As shown, a display panel 12 can be provided on the surface of the light guide plate 4. The display panel 12 can be a touch panel or a liquid crystal panel, so that the electronic device has touch and button operations, such as mobile phones, electronic watches, tablet computers and other electronic devices, and has a wide range of applications.

[0047] The working principle of a luminous fingerprint module and an electronic device provided by the utility model is as follows: the fingerprint module 2 is embedded in the backlight plastic shell 1, and can be placed at any position of the plastic shell corresponding to the VA area, thereby avoiding the increase of thickness, and the process preparation is simple, easy to produce and prepare, with high yield rate and low cost, which improves the competitiveness of the product, can be applied to fields that do not require a cover plate or LCD display, and broadens the application surface. The prepared electronic products do not need display or touch functions, such as access control cards, etc., and can have an ultra-thin structure, which is easy to carry and use.

[0048] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0049] Obviously, the embodiments described above are only some embodiments of the utility model, rather than all embodiments. The preferred embodiments of the utility model are given in the accompanying drawings, but they do not limit the patent scope of the utility model. The utility model can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the utility model more thorough and comprehensive. Although the utility model is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to replace some of the technical features therein with equivalents. Any equivalent structure made using the contents of the utility model specification and the accompanying drawings, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the utility model.

Claims

1. A luminous fingerprint module, comprising a backlight plastic shell, characterized in that: The backlight plastic shell is provided with a groove, in which a fingerprint module is embedded, and a reflective sheet, a light guide plate and a backlight source are sequentially stacked on the surface of the backlight plastic shell, which are electrically connected to the backlight FPC.

2. A luminous fingerprint module according to claim 1, characterized in that: The backlight plastic shell comprises a visible area and a non-visible area, and the groove is arranged in the visible area.

3. The luminous fingerprint module according to claim 1, characterized in that: The backlight plastic shell comprises a bottom plate and a surrounding frame, wherein the surrounding frame is integrally arranged on the upper surface of the bottom plate, and the groove is arranged on the upper surface of the bottom plate, and the groove extends to the outer side surface of the surrounding frame.

4. The luminous fingerprint module according to claim 3, characterized in that: An extension portion is provided on the light guide plate to form a downward "convex" structure, and the extension portion overlaps the upper surface of the surrounding frame.

5. A luminous fingerprint module according to claim 3 or 4, characterized in that: A gap is left between the light guide plate and the surrounding frame, and the backlight source is arranged in the gap.

6. The luminous fingerprint module according to claim 5, characterized in that: The backlight sources are arranged on one side of the light guide plate or are arranged at intervals around the four sides of the light guide plate.

7. The luminous fingerprint module according to claim 1, characterized in that: It also includes a fingerprint FPC, which is electrically connected to the fingerprint module, and the fingerprint FPC is placed in the groove and extends from one side of the backlight plastic shell.

8. The luminous fingerprint module according to claim 1, characterized in that: It also includes a decorative film, which is attached to the surface of the light guide plate.

9. The luminous fingerprint module according to claim 1, characterized in that: The device also includes a display panel, which is covered on the surface of the light guide plate.

10. An electronic device, characterized in that: The electronic device comprises the luminous fingerprint module as described in any one of claims 1-9.

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