CN216625710U - Fingerprint switch light-emitting module - Google Patents
Fingerprint switch light-emitting module Download PDFInfo
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- CN216625710U CN216625710U CN202122226148.5U CN202122226148U CN216625710U CN 216625710 U CN216625710 U CN 216625710U CN 202122226148 U CN202122226148 U CN 202122226148U CN 216625710 U CN216625710 U CN 216625710U
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- light
- fingerprint
- guide film
- protective cover
- light guide
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Abstract
The utility model provides a light-emitting module of a fingerprint switch, which comprises a fingerprint identification module, a light guide film, at least one light-emitting component, a light-transmitting protective cover plate and a printing layer. The light guide film is configured on the fingerprint identification module. The light guide film has opposite top and bottom surfaces and side surfaces connected between the top and bottom surfaces. At least one light emitting component is configured on the fingerprint identification module to provide light beams to the light guide film. The light-transmitting protective cover plate is arranged on the light guide film. The printing layer is arranged on the light-transmitting protective cover plate so as to form at least one light-transmitting area on the light-transmitting protective cover plate. The printing layer is positioned between the light guide film and the light-transmitting protective cover plate, wherein the light guide film transmits light beams to emit light from at least one light-transmitting area, and then an illumination pattern is formed.
Description
Technical Field
The present invention relates to a functional module, and more particularly, to a light emitting module of a fingerprint switch.
Background
Most of the existing fingerprint identification modules are configured with a fingerprint sensing chip, and transmit a sensed fingerprint signal to a Micro Controller Unit (MCU) or directly to a system platform host through a Serial Peripheral Interface (SPI). Finally, the signal is transmitted to a host (e.g., an electronic application such as a notebook computer, a smart phone, or a door lock) for signal calculation or utilization.
However, in the current market, a fingerprint switch module with self-luminescence and fingerprint identification function is not designed. Therefore, how to design the fingerprint switch module capable of marking self-luminescence at the periphery or/and the center of the fingerprint switch module to increase the aesthetic effect of the product is a goal of the field.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fingerprint switch light-emitting module which can simultaneously have the functions of triggering an electronic device, emitting light by itself and identifying a fingerprint.
The utility model provides a fingerprint switch light-emitting module which comprises a fingerprint identification module, a light guide film, at least one light-emitting component, a light-transmitting protective cover plate and a printing layer. The light guide film is configured on the fingerprint identification module. The light guide film has opposite top and bottom surfaces and side surfaces connected between the top and bottom surfaces. At least one light-emitting component is configured on the fingerprint identification module to provide light beams to the light guide film. The light-transmitting protective cover plate is arranged on the light guide film. The printing layer is arranged on the light-transmitting protective cover plate so as to form at least one light-transmitting area on the light-transmitting protective cover plate. The printing layer is positioned between the light guide film and the light-transmitting protective cover plate, wherein the light guide film transmits light beams to emit light from at least one light-transmitting area, and then an illumination pattern is formed.
In view of the above, in the light emitting module of the fingerprint switch of the present invention, the light guiding film is disposed on the fingerprint identification module, and the at least one light emitting element is disposed on the fingerprint identification module and surrounds the light guiding film. The light-transmitting protective cover plate is arranged on the light guide film, and the printing layer is arranged on the bottom side of the light-transmitting protective cover plate. Therefore, the light guide film can transmit light beams to emit light from the region, which is not overlapped with the printing layer, in the light-transmitting protective cover plate, so that the lighting pattern is formed. Therefore, the functions of triggering the electronic device by a user, emitting light by the user and identifying the fingerprint can be provided at the same time, and the thinned fingerprint switch light-emitting module structure can be realized.
In order to make the aforementioned and other features and advantages of the utility model more comprehensible, embodiments accompanied with figures are described in detail below.
Drawings
Fig. 1 is a schematic diagram of a fingerprint switch light-emitting module according to an embodiment of the present invention;
fig. 2 is a perspective exploded view of the fingerprint switch light emitting module of fig. 1;
fig. 3 is a schematic top view of the fingerprint switch lighting module of fig. 1.
Description of reference numerals:
100: a fingerprint switch light emitting module;
110: a fingerprint identification module;
112: a circuit component;
114: a capacitive fingerprint chip;
120: a light directing film;
122: a first portion;
124: a second portion;
130: a light emitting assembly;
140: a light-transmitting protective cover plate;
150: printing layer;
l: a light beam;
o: an opening;
p: a light-transmitting region;
s1: a top surface;
s2: a bottom surface;
s3: a side surface;
s4: a sensing surface;
s5: and a light-emitting surface.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It is to be understood that the drawings are for purposes of illustration and description and are not intended to be limiting. For purposes of clarity, elements may not be drawn to scale. In addition, some components and/or reference numerals may be omitted from some of the drawings. In the description and drawings, the same or similar reference numerals are used to designate the same or similar components. When an element is said to be "disposed" or "connected" … to another element, it can be "directly disposed" or "directly connected" … to the other element or intervening elements may also be present, unless otherwise specified. It is contemplated that elements and features of one embodiment may be beneficially incorporated in other embodiments if applicable without further recitation.
Fig. 1 is a schematic diagram of a fingerprint switch light emitting module according to an embodiment of the present invention. Fig. 2 is a schematic perspective exploded view of the fingerprint switch light emitting module of fig. 1. Fig. 3 is a schematic top view of the fingerprint switch lighting module of fig. 1. Please refer to fig. 1 to fig. 3. The present embodiment provides a fingerprint switch light-emitting module 100, which includes a fingerprint identification module 110, a light guide film 120, at least one light-emitting element 130, a light-transmitting protective cover plate 140 and a printing layer 150. The fingerprint switch light emitting module 100 may be installed in an electronic device for personal use, such as a computer, a tablet, etc., but the present invention is not limited thereto.
In detail, the fingerprint identification module 110 includes a circuit component 112 and a capacitive fingerprint chip 114. The circuit component 112 is, for example, a circuit board, and is electrically connected to other circuit devices in the electronic device. The capacitive fingerprint chip 114 is, for example, a capacitive sensing element, and is used for sensing the intensity of the fingerprint peak and valley charges to generate an electronic signal, so as to identify user information, such as a fingerprint. However, the present invention does not limit the type or form of the fingerprint recognition module 110 in the fingerprint switch light-emitting module 100, and the detailed structure and implementation thereof can be taught, suggested and described sufficiently by the general knowledge in the art, and thus will not be described again.
The light guide film 120 is disposed on the fingerprint recognition module 110 and surrounds the capacitive fingerprint chip 114 of the fingerprint recognition module 110. Light directing film 120 has opposing top surface S1, bottom surface S2, and side surfaces S3 connected between top surface S1 and bottom surface S2. The light guiding film 120 is used for receiving the externally provided light beam L to transmit evenly inside, so that light can be emitted outwards from each surface or a designated surface (e.g., the top surface S1).
Structurally, the light guiding film 120 has an opening O, and the capacitive fingerprint chip 114 is located in the opening O. In other words, the capacitive fingerprint chip 114 is located at the center of the light guide film 120, the shape of the opening O is adapted to the shape of the capacitive fingerprint chip 114, and the light guide film 120 surrounds the capacitive fingerprint chip 114. Therefore, the overall structure thickness can be further reduced. In the present embodiment, the capacitive fingerprint chip 114 has a sensing surface S4, and the top surface S1 of the light guiding film 120 is coplanar with the sensing surface S4 of the capacitive fingerprint chip 114. However, in other embodiments, the top surface S1 of the light guiding film 120 may be located on a plane higher or lower than the sensing surface S4 of the capacitive fingerprint chip 114, and the present invention is not limited thereto.
In addition, in the present embodiment, the light guiding film 120 includes a first portion 122 and a second portion 124. Wherein the thickness of the first portion 122 is greater than the thickness of the second portion 124, and the second portion 124 surrounds the first portion 122. Therefore, the thickness of the surrounding structure can be further reduced, or a step is generated by the height difference between the first portion 122 and the second portion 124, so as to be suitable for assembling different kinds of structures on the upper layer, such as covering with the housing of the electronic device, but the present invention is not limited thereto. In the present embodiment, the shape of the first portion 122 is, for example, adapted to the shape of the light-transmissive protective cover plate 140, and the shape of the second portion 124 is, for example, adapted to the shape of the circuit assembly 112, but the present invention is not limited thereto. In the present embodiment, the first portion 122 is integrally formed with the second portion 124. However, in different embodiments, the light guiding film 120 may also be designed to have a uniform height in the horizontal direction, i.e. two different portions without height difference to maintain uniformity and reduce the manufacturing difficulty, but the present invention is not limited thereto.
The light emitting element 130 is disposed on the fingerprint identification module 110 and surrounds the light guide film 120. In detail, the light emitting assembly 130 is connected to the side surface S3 of the light guide film 120 and directly provides the light beam L toward the side surface S3. In other words, the light emitting surface S5 of the light emitting element 130 is parallel to the side surface S3 of the light guiding film 120, and the light emitting surface S5 of the light emitting element 130 is not directly directed toward the front view direction of the user. In other words, the light emitting elements 130 do not overlap the light guide film 120 in the vertical direction. Therefore, the overall structure thickness can be further reduced. In the present embodiment, the number of the light emitting elements 130 is two, and the light emitting elements are geometrically and symmetrically distributed on two opposite sides S3 of the second portion 124 of the light guiding film 120. However, in different embodiments, the number of the light emitting elements 130 may be singular or other plural, and the present invention is not limited thereto. On the other hand, in different embodiments, the light emitting element 130 may be modified to be connected to the bottom surface S2 of the light guiding film 120, such that the light emitting element 130 is overlapped with the light guiding film 120 in the vertical direction, and in different embodiments, the light emitting element 130 may selectively provide the light beam L upwards or downwards, but the present invention is not limited thereto.
The transparent protective cover 140 is disposed on the light guide film 120 for protecting the internal structure. The transparent protective cover 140 may be, for example, a transparent glass cover, or alternatively a transparent plastic cover, but the present invention is not limited thereto. In the present embodiment, the shape of the light-transmitting protective cover 140 is adapted to the first portion 122 of the light-guiding film 120, and the area thereof is slightly larger than the area of the first portion 122, but the present invention is not limited thereto.
The printing layer 150 is disposed on the light-transmitting protective cover 140 to form at least one light-transmitting region P on the light-transmitting protective cover 140, and the printing layer 150 is located between the light-guiding film 120 and the light-transmitting protective cover 140. In other words, the region where the light-transmitting protective cover 140 and the printed layer 150 do not overlap becomes the light-transmitting region P, so that the light emitted from the light guide film 120 can pass through. For example, in the present embodiment, the light-transmitting region P includes a peripheral region and a central pattern region (i.e., a power symbol pattern), and the peripheral region and the central region have a gap. That is, the printing layer 150 is disposed at the bottom of the light-transmitting protective cover 140. Specifically, the printing layer 150 is formed on the bottom of the light-transmitting protective cover 140 by printing, coating, or plating. The printing layer 150 is made of opaque material to block light to form a special light-emitting pattern. In the present embodiment, the area covered by the printing layer 150 in the horizontal direction is smaller than the area covered by the light-transmitting protective cover plate 140 in the horizontal direction. For example, in the present embodiment, the edge of the light-transmissive protective cover 140 does not have the printing layer 150. Therefore, the light can be transmitted to the user from the edge of the light-transmitting protective cover plate 140, and the user can obtain good appearance. In other words, the edge of the light-transmissive protective cover 140 is a part of the light-transmissive region P. It should be noted that, in another embodiment, the material of the transparent protective cover 140 may be the same as the material of the light guide film 120, but the present invention is not limited thereto. Therefore, the light display effect of the light-transmitting region P can be further improved. For example, the light-transmissive cover plate 140 and the light guide film 120 may be integrally formed. Therefore, the manufacturing process can be simplified, and the light display effect is improved.
In the present embodiment, the light beam L provided by the light emitting element 130 passes through the light guiding film 120, and the light guiding film 120 passes the light beam L to emit light from the non-overlapped region (i.e., the light-transmitting region P) of the light-transmitting protective cover 140 and the printed layer 150, so as to form an illumination pattern. Thus, with the configuration of the present embodiment, the fingerprint switch light-emitting module 100 can provide the user with the functions of triggering the electronic device, emitting light by itself, and recognizing the fingerprint. In addition, with the configuration of the present embodiment, a thin fingerprint switch light emitting module 100 structure can be realized.
In summary, in the light emitting module of the fingerprint switch of the present invention, the light guiding film is disposed on the fingerprint identification module, and the at least one light emitting element is disposed on the fingerprint identification module and surrounds the light guiding film. The light-transmitting protective cover plate is arranged on the light guide film, and the printing layer is arranged at the bottom side of the light-transmitting protective cover plate. Therefore, the light guide film can transmit light beams to emit light from the region, which is not overlapped with the printing layer, in the light-transmitting protective cover plate, so that the lighting pattern is formed. Therefore, the light-emitting module structure of the fingerprint switch can simultaneously provide functions of triggering the electronic device by a user, self light emission and fingerprint identification and can realize thinning.
Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the utility model.
Claims (17)
1. A fingerprint switch lighting module, comprising:
a fingerprint identification module;
the light guide film is arranged on the fingerprint identification module and is provided with a top surface, a bottom surface and a side surface, wherein the top surface is opposite to the bottom surface, and the side surface is connected between the top surface and the bottom surface;
at least one light-emitting component configured on the fingerprint identification module to provide light beams to the light guide film;
the light-transmitting protective cover plate is configured on the light guide film; and
the printing layer is arranged on the light-transmitting protective cover plate so as to form at least one light-transmitting area on the light-transmitting protective cover plate, and the printing layer is positioned between the light guide film and the light-transmitting protective cover plate, wherein the light guide film transmits the light beams to emit light from the at least one light-transmitting area, so that an illumination pattern is formed.
2. The light emitting module of claim 1, wherein the fingerprint sensor module comprises a circuit assembly and a capacitive fingerprint chip, the capacitive fingerprint chip is disposed on the circuit assembly, and the light guide film surrounds the capacitive fingerprint chip.
3. The fingerprint switch lighting module of claim 2, wherein the light guide film has an opening, and the capacitive fingerprint chip is located in the opening.
4. The fingerprint switch lighting module of claim 2, wherein the capacitive fingerprint chip has a sensing surface, and the top surface of the light guiding film is coplanar with the sensing surface.
5. The fingerprint switch lighting module of claim 2, wherein the capacitive fingerprint chip has a sensing surface, and the top surface of the light guiding film is located on a plane higher than the sensing surface.
6. The fingerprint switch lighting module of claim 2, wherein the capacitive fingerprint chip has a sensing surface, and a plane of the top surface of the light guide film is lower than a plane of the sensing surface.
7. The fingerprint switch lighting module of claim 1, wherein the at least one lighting element is connected to the side of the light guide film, and the at least one lighting element does not vertically overlap the light guide film.
8. The fingerprint switch lighting module of claim 1, wherein the at least one lighting element is connected to the bottom surface of the light guide film, and the at least one lighting element vertically overlaps the light guide film.
9. The fingerprint switch lighting module of claim 1, wherein the at least one lighting element is plural in number and is evenly distributed around the light guide film.
10. The fingerprint switch lighting module of claim 1, wherein the light guiding film has a uniform height in a horizontal direction.
11. The fingerprint switch lighting module of claim 1, wherein the light directing film comprises a first portion and a second portion, the first portion having a thickness greater than a thickness of the second portion, and the second portion surrounding the first portion.
12. The fingerprint switch light-emitting module of claim 1, wherein the printing layer is formed on the bottom of the light-transmitting protective cover plate by printing, coating or plating.
13. The fingerprint switch lighting module of claim 1, wherein an area covered by the printing layer in a horizontal direction is smaller than an area covered by the light-transmitting protective cover plate in the horizontal direction.
14. The fingerprint switch lighting module of claim 1, wherein the at least one light transmissive region is comprised of an area of the light transmissive protective cover that does not overlap the printed layer.
15. The fingerprint switch lighting module of claim 1, wherein the at least one light transmissive region comprises a peripheral region and a central region, the peripheral region being spaced apart from the central region.
16. The light-emitting module of claim 1, wherein the light-transmitting protective cover is made of the same material as the light-guiding film.
17. The fingerprint switch lighting module of claim 16, wherein the light transmissive protective cover is integrally formed with the light directing film.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US202163153962P | 2021-02-26 | 2021-02-26 | |
| US63/153,962 | 2021-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216625710U true CN216625710U (en) | 2022-05-27 |
Family
ID=80680822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122226148.5U Active CN216625710U (en) | 2021-02-26 | 2021-09-14 | Fingerprint switch light-emitting module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN216625710U (en) |
| TW (1) | TWM621518U (en) |
-
2021
- 2021-08-31 TW TW110210232U patent/TWM621518U/en unknown
- 2021-09-14 CN CN202122226148.5U patent/CN216625710U/en active Active
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| Publication number | Publication date |
|---|---|
| TWM621518U (en) | 2021-12-21 |
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