CN212624068U - Fingerprint Sensing System - Google Patents
Fingerprint Sensing System Download PDFInfo
- Publication number
- CN212624068U CN212624068U CN202021179296.5U CN202021179296U CN212624068U CN 212624068 U CN212624068 U CN 212624068U CN 202021179296 U CN202021179296 U CN 202021179296U CN 212624068 U CN212624068 U CN 212624068U
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- Prior art keywords
- sensing system
- fingerprint sensing
- substrate
- display screen
- sensor
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- 239000000758 substrate Substances 0.000 claims abstract description 38
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 4
- 239000003351 stiffener Substances 0.000 claims description 3
- 230000003287 optical effect Effects 0.000 description 4
- 230000004308 accommodation Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Images
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- Image Input (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
本实用新型提供一种设置于显示屏下的指纹感测系统。指纹感测系统包括基板、支撑框、至少一支撑柱以及传感器。支撑框以及至少一支撑柱设置在基板与显示屏之间。传感器设置于基板上，且容置于支撑框及至少一支撑柱所形成的容置空间内。因此，本实用新型提供的指纹感测系统，其能有效地减少按压显示屏所造成的形变，使得指纹感测系统的可靠性提高。
The utility model provides a fingerprint sensing system arranged under a display screen. The fingerprint sensing system includes a substrate, a support frame, at least one support column and a sensor. The support frame and the at least one support column are arranged between the substrate and the display screen. The sensor is arranged on the substrate and accommodated in a receiving space formed by the support frame and the at least one support column. Therefore, the fingerprint sensing system provided by the utility model can effectively reduce the deformation caused by pressing the display screen, so that the reliability of the fingerprint sensing system is improved.
Description
Technical Field
The utility model relates to a sensing system especially relates to a fingerprint sensing system.
Background
The importance of fingerprint sensing systems is increasing due to the security requirements of smart phones and mobile devices for user identification. The current market trend is towards the use of large area fingerprint identification in addition to the use of an off-screen fingerprint sensing system.
The under-screen fingerprint system, i.e. the fingerprint sensing system, is arranged directly under the display screen. However, the display screen is more or less deformed when pressed against the display screen such that the fingerprint sensing system can take an image of the user's fingerprint. The deformation of the display screen affects the reliability of fingerprint identification. However, the larger the sensing area of the fingerprint sensing system, the larger the deformation of the display screen. Therefore, a large-area fingerprint recognition system is accompanied by a problem of reliability degradation.
SUMMERY OF THE UTILITY MODEL
The utility model provides a fingerprint sensing system, it can reduce the deformation that the display screen caused effectively for fingerprint sensing system's reliability improves.
An embodiment of the utility model provides a set up fingerprint sensing system under the display screen. The fingerprint sensing system comprises a substrate, a supporting frame, at least one supporting column and a sensor. The support frame and at least one support column are arranged between the substrate and the display screen. The sensor is arranged on the substrate and is accommodated in an accommodating space formed by the support frame and the at least one support column.
In an embodiment of the present invention, a projection area of the accommodating space on the substrate is larger than a projection area of the sensor accommodated in the accommodating space on the substrate.
In an embodiment of the present invention, the supporting frame and the at least one supporting pillar are made of the same material.
In an embodiment of the present invention, the supporting frame and the at least one supporting pillar are integrally formed.
In an embodiment of the present invention, the substrate is a flexible printed circuit board.
In an embodiment of the present invention, the substrate is a reinforcing plate.
In the embodiment of the present invention, the utility model also includes a peripheral frame. The peripheral frame is arranged on the substrate and is arranged on the periphery of the supporting frame.
An embodiment of the utility model provides a set up fingerprint sensing system under the display screen. The fingerprint sensing system comprises a sensor, a support frame and at least one support column. The sensor is arranged on the substrate. The support frame and at least one support column are arranged between the display screen and the sensor. The sensing area of the fingerprint sensing system is divided into at least two sub-sensing areas by at least one supporting column.
In the embodiment of the present invention, the utility model also includes a peripheral frame. The peripheral frame is arranged on the substrate and is arranged on the periphery of the supporting frame.
Based on the foregoing, in the utility model discloses an in the fingerprint sensing system of an embodiment, because fingerprint sensing system has included carriage and support column, carriage and support column have reduced the display screen effectively through pressing produced deformation, consequently, the utility model discloses a fingerprint sensing system's of an embodiment reliability is higher.
Drawings
Fig. 1 is a schematic cross-sectional view of a fingerprint sensing system according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a fingerprint sensing system according to an embodiment of the present invention;
fig. 3 is a schematic cross-sectional view of a fingerprint sensing system according to another embodiment of the present invention.
Description of the reference numerals
100. 100': fingerprint sensing system
110: sensor with a sensor element
110R: sensing region
110R1, 110R 2: sub-sensing area
110S1, 110S 2: sensing surface
120: substrate
130. 130': support frame
140. 140': support column
150: peripheral frame
200: display screen
S1, S2: containing space
Detailed Description
Reference will now be made in detail to the exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.
Fig. 1 is a schematic cross-sectional view of a fingerprint sensing system according to an embodiment of the present invention. Fig. 2 is a perspective view of a fingerprint sensing system according to an embodiment of the present invention. Referring to fig. 1 and fig. 2, a fingerprint sensing system 100 according to an embodiment of the present invention is disposed under a display screen 200. The fingerprint sensing system 100 includes a substrate 120, a support frame 130, at least one support post 140, and a sensor 110.
In the present embodiment, the display panel 200 is, for example, an Organic Light-Emitting Diode display panel (OLED display panel), but the invention is not limited thereto.
In the embodiment, the sensor 110 may be a Thin Film Transistor (TFT), a Complementary Metal-Oxide-Semiconductor (CMOS) or a Charge Coupled Device (CCD) photosensor. Each sensor 110 may include a plurality of sensing pixels arranged in a sensing array, wherein each sensing pixel may include at least one photodiode (photodiode), but the invention is not limited thereto.
In the present embodiment, the display screen 200 may have a fingerprint sensing area. The sensing area of the sensor 110 corresponds to the fingerprint sensing area and is disposed below the fingerprint sensing area. Specifically, when sensing a fingerprint, the user brings a finger close to or presses the fingerprint sensing area of the display 200, and the display 200 emits an illumination beam to the finger. The illuminating light beam is reflected by the finger to generate a reflected light beam. The reflected beam passes through the display screen 200 and is then passed to the sensor 110. Thus, the optical signals received by the sensor 110 form a fingerprint image.
In the present embodiment, the substrate 120 may be a Printed Circuit Board (PCB) or a Flexible Printed Circuit (FPC). To further reduce the volume of the fingerprint sensing system 100, the substrate 120 is preferably a flexible printed circuit board. When the substrate 120 is a printed circuit board or a flexible printed circuit board, the sensor 110 is electrically connected to the substrate 120. The substrate 120 is used for receiving the signal of the sensor 110.
In one embodiment, the substrate 120 may also be a flexible printed circuit board (fpc) including a stiffener (stiffener).
In the present embodiment, the supporting frame 130 and the supporting columns 140 are disposed between the substrate 120 and the display screen 200, and the supporting frame 130 is disposed at the periphery of the supporting columns 140. The sensor 110 is disposed on the substrate 120 and accommodated in the accommodating spaces S1 and S2 formed by the supporting frame 130 and the supporting posts 140.
In this embodiment, the supporting frame 130 may be foam adhesive, so that the supporting frame 130 is adhered to the substrate 120 and the display screen 200 at the same time. Therefore, the sensor 110 can be disposed under the display screen 200 through the configuration of the support frame 130.
Fig. 1 and 2 illustrate that the accommodating spaces S1 and S2 are respectively provided with a sensor 110. However, the present invention is not limited thereto, and a plurality of sensors 110 may be disposed in each of the receiving spaces S1 and S2.
In one embodiment, the projection area of each of the accommodating spaces S1 and S2 on the substrate 120 is larger than the projection area of the sensor 110 accommodated in each of the accommodating spaces S1 and S2 on the substrate 120.
In one embodiment, the supporting frame 130 and the supporting column 140 are made of the same material, but the invention is not limited thereto. In another embodiment, the support frame 130 and the support column 140 may be integrally formed. When the support frame 130 and the support posts 140 are made of the same material, or when the support frame 130 and the support posts 140 are integrally formed, the support frame 130 and the support posts 140 can be manufactured in the same manufacturing step. Accordingly, the fingerprint sensing system 100 of embodiments of the present invention may further reduce manufacturing time.
In another embodiment, the fingerprint sensing system 100 may further include an optical module disposed between the fingerprint sensing area and the sensor 110 to direct the reflected light beam to the sensor 110 to form a fingerprint image. The optical module is, for example, a lens assembly, has a collimator structure, and/or comprises a micro-lens (micro-lens) layer and/or a micro-hole (pin-holes) layer. The present invention does not limit the type and kind of the optical module.
Based on the above, in the fingerprint sensing system 100 of an embodiment of the utility model, because carriage 130, base plate 120 and support column 140 form two at least accommodation spaces S1 and S2, make sensor 110 set up respectively in different accommodation spaces S1, S2, consequently, carriage 130 and support column 140 strengthen the holding power of display screen 200 effectively, avoid display screen 200 to produce deformation because of pressing, make the utility model discloses a fingerprint identification rate of fingerprint sensing system 100 of an embodiment promotes.
Fig. 3 is a schematic cross-sectional view of a fingerprint sensing system according to another embodiment of the present invention. Referring to fig. 3, the fingerprint sensing system 100' of fig. 3 is similar to the fingerprint sensing system 100 of fig. 1 and 2, and the main differences are: the support frame 130 'and the support columns 140' are disposed between the display screen 200 and the sensor 110. In this embodiment, the fingerprint sensing system 100 ' includes a sensor 110, a support frame 130 ', and at least one support post 140 '. In detail, the sensor 110 is disposed on the substrate 120. The sensing region 110R of the fingerprint sensing system 100 'is divided into at least two sub-sensing regions 110R1, 110R2 by the supporting pillars 140'.
In this embodiment, the fingerprint sensing system 100' further comprises a peripheral frame 150. The peripheral frame 150 is disposed on the substrate 120 and is disposed at the periphery of the support frame 130'. The supporting frame 130 'and the supporting posts 140' are directly disposed on the sensor 110 by, for example, adhesion. The peripheral frame 150 is, for example, foam cotton, so that the fingerprint sensing system 100' is disposed under the display screen 200.
In summary, in the fingerprint sensing system according to an embodiment of the present invention, the supporting frame and the supporting column form an accommodating space, so that the sensors are respectively disposed in different accommodating spaces; or, the support column makes fingerprint sensing system's sensing region divide into two at least sub-sensing regions, consequently, the carriage strengthens the support ability of display screen with the support column effectively, avoids the display screen to produce deformation because of pressing down, makes the utility model discloses a fingerprint sensing system's of an embodiment fingerprint identification rate promotes.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. The utility model provides a fingerprint sensing system, sets up under the display screen, its characterized in that includes:
a substrate;
the supporting frame and the at least one supporting column are arranged between the substrate and the display screen; and
the sensor is arranged on the substrate and is contained in the containing space formed by the support frame and the at least one support column.
2. The fingerprint sensing system of claim 1, wherein a projected area of the receiving space on the substrate is larger than a projected area of a sensor received by the receiving space on the substrate.
3. The fingerprint sensing system of claim 1, wherein the support frame is made of the same material as the at least one support post.
4. The fingerprint sensing system of claim 1, wherein the support frame is integrally formed with the at least one support post.
5. The fingerprint sensing system of claim 1, wherein the substrate is a flexible printed circuit board.
6. The fingerprint sensing system of claim 1, wherein the substrate is a stiffener.
7. The fingerprint sensing system of claim 1, further comprising:
and the peripheral frame is arranged on the substrate and is arranged on the periphery of the supporting frame.
8. The utility model provides a fingerprint sensing system, sets up under the display screen, its characterized in that includes:
a sensor disposed on the substrate; and
the supporting frame and at least one supporting column are arranged between the display screen and the sensor;
the sensing area of the fingerprint sensing system is divided into at least two sub-sensing areas by the at least one supporting column.
9. The fingerprint sensing system of claim 8, further comprising:
and the peripheral frame is arranged on the substrate and is arranged on the periphery of the supporting frame.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201962950968P | 2019-12-20 | 2019-12-20 | |
| US62/950,968 | 2019-12-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212624068U true CN212624068U (en) | 2021-02-26 |
Family
ID=74203484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021179296.5U Expired - Fee Related CN212624068U (en) | 2019-12-20 | 2020-06-23 | Fingerprint Sensing System |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN212624068U (en) |
| TW (1) | TWM603998U (en) |
-
2020
- 2020-06-23 CN CN202021179296.5U patent/CN212624068U/en not_active Expired - Fee Related
- 2020-06-23 TW TW109207953U patent/TWM603998U/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| TWM603998U (en) | 2020-11-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210226 |