CN210038739U - Fingerprint identification touch panel and display device - Google Patents
Fingerprint identification touch panel and display device Download PDFInfo
- Publication number
- CN210038739U CN210038739U CN201920895488.7U CN201920895488U CN210038739U CN 210038739 U CN210038739 U CN 210038739U CN 201920895488 U CN201920895488 U CN 201920895488U CN 210038739 U CN210038739 U CN 210038739U
- Authority
- CN
- China
- Prior art keywords
- substrate
- fingerprint identification
- touch panel
- fingerprint recognition
- fingerprint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000758 substrate Substances 0.000 claims abstract description 84
- 230000006698 induction Effects 0.000 claims abstract description 12
- 230000001939 inductive effect Effects 0.000 claims abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 claims description 15
- 239000000853 adhesive Substances 0.000 claims description 12
- 230000001070 adhesive effect Effects 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 9
- 239000003292 glue Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- 239000011521 glass Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The utility model provides a fingerprint identification display panel and display device belongs to and shows technical field. The utility model discloses a fingerprint identification touch panel, include: the fingerprint identification device comprises a display module and a fingerprint identification substrate arranged on the light emitting surface side of the display module; wherein, fingerprint identification base plate includes: a first substrate on which a plurality of fingerprint recognition units are disposed; each fingerprint identification unit comprises: the driving electrode and the induction electrode are arranged side by side; the driving electrode is used for receiving a driving signal; the induction electrode is used for inducing capacitance change between the induction electrode and the driving electrode in a fingerprint identification stage so as to identify fingerprints.
Description
Technical Field
The utility model belongs to the technical field of show, concretely relates to fingerprint identification touch panel and display device.
Background
With the development of multimedia technology, portable electronic devices such as smart phones and tablet computers have become essential tools in people's lives, and important personal information of users is often stored therein. Therefore, certain authentication and rights management measures are necessary for such products to protect the information stored therein in order to prevent the personal information of the user from being leaked or stolen inadvertently.
Among the existing identity authentication methods, Fingerprint Identification (Fingerprint Identification) is a more advanced and widely used method. Since the fingerprint of each person is unique, the fingerprint identification and authentication method has high safety and is convenient to use.
In summary, it is an urgent need to provide a display panel with fingerprint identification function.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of the technical problem that exists among the prior art at least, provide a fingerprint identification touch panel and display device.
Solve the utility model discloses technical scheme that technical problem adopted is a fingerprint identification touch panel, include: the fingerprint identification device comprises a display module and a fingerprint identification substrate arranged on the light emitting surface side of the display module; wherein,
the fingerprint identification substrate includes: a first substrate on which a plurality of fingerprint recognition units are disposed; each fingerprint identification unit comprises: the driving electrode and the induction electrode are arranged side by side;
the driving electrode is used for receiving a driving signal;
the induction electrode is used for inducing capacitance change between the induction electrode and the driving electrode in a fingerprint identification stage so as to identify fingerprints.
Preferably, the fingerprint recognition substrate further includes: a plurality of scan lines and a plurality of readout lines; the scanning lines and the reading lines are arranged in a crossed mode to define the fingerprint identification unit; wherein,
the driving electrodes in the fingerprint identification units in the same row are connected with the same scanning line;
the induction electrodes in the fingerprint identification units in the same column are connected with the same reading line.
Preferably, the fingerprint recognition substrate further includes: a flexible circuit board; a fingerprint identification chip is arranged on the flexible circuit board; wherein,
the scanning line and the reading line are bound and connected with the flexible circuit board, so that the scanning line and the reading line are electrically connected with the fingerprint identification chip.
Preferably, the resolution of the fingerprint recognition substrate includes 200ppi to 400 ppi.
Preferably, the area of each fingerprint recognition unit is 80 μm to 200 μm.
Preferably, the total area of each of the fingerprint recognition units includes 4mm × 4mm to 10mm × 10 mm.
Preferably, the first substrate material comprises glass.
Preferably, the display module comprises a first substrate and a second substrate which are oppositely arranged; wherein the first substrate includes: a first substrate base plate; wherein,
the first substrate base plate serves as the first base.
Preferably, the display module comprises a first substrate and a second substrate which are oppositely arranged; wherein the first substrate includes: a first substrate base plate; wherein,
the first substrate base plate is connected with the first base through a first connecting layer.
Preferably, the material of the first connection layer includes: any one of transparent optical conductive adhesive, optical liquid glue and frame glue.
Preferably, the fingerprint recognition touch panel further includes: and the cover plate is arranged on the side, facing away from the first substrate, of the fingerprint identification unit.
Preferably, the fingerprint recognition touch panel further includes: the upper polaroid is positioned on the light emitting surface side of the display module; wherein,
the upper polarizer is used as the cover plate.
Preferably, the cover plate is connected to the fingerprint identification substrate through a second connection layer.
Preferably, the material of the second connection layer includes: any one of transparent optical conductive adhesive, optical liquid glue and frame glue.
Preferably, the display module comprises a liquid crystal module.
Solve the utility model discloses technical scheme that technical problem adopted is a display device, and it includes foretell fingerprint identification touch panel.
Drawings
Fig. 1 is a schematic structural view of a fingerprint identification touch panel according to embodiment 1 of the present invention;
fig. 2 is a schematic layout view of the fingerprint recognition unit according to embodiment 1 of the present invention.
Wherein the reference numerals are: 1. a liquid crystal module; 21. a first substrate; 22. a fingerprint recognition unit; 221. a drive electrode; 222. an induction electrode; 3. a first tie layer; 4. a cover plate; 5. a second connection layer; 6. a flexible circuit board; 61. fingerprint identification chip.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
The embodiment provides a touch panel with a fingerprint identification function, which comprises a display module and a fingerprint identification substrate arranged on the light emitting surface side of the display module; the display module can be a liquid crystal module or an organic light-emitting diode display module; in the following embodiments, the display module is mainly used as a liquid crystal module for explanation.
The liquid crystal module specifically comprises a first substrate and a second substrate which are oppositely arranged; the first substrate can be a color film substrate, and the second substrate is an array substrate; of course, the first substrate may be a pair of box substrates, and the second substrate may be a COA (Color On Array; a Color film is disposed On an Array substrate); in the following embodiments, the first substrate is a color filter substrate, and the second substrate is an array substrate.
Of course, the liquid crystal module in this embodiment may be a display module having a touch function. The touch module can be a self-contained touch module or a mutual-contained touch module.
Example 1:
as shown in fig. 1, the present embodiment provides a touch panel with fingerprint identification function, which includes a liquid crystal module 1 and a fingerprint identification substrate disposed on a light emitting surface side of the liquid crystal module 1; wherein, fingerprint identification base plate includes: a first substrate 21 on which a plurality of fingerprint recognition units 22 are disposed; each fingerprint recognition unit 22 comprises a driving electrode 221 and a sensing electrode 222 which are arranged side by side; the driving electrode 221 is used for receiving a driving signal; the sensing electrode 222 is used for sensing a capacitance change between the driving electrode 221 and the sensing electrode in a fingerprint identification stage, so as to perform fingerprint identification.
Because the touch panel of this embodiment has the fingerprint identification substrate disposed on the light-emitting surface side of the liquid crystal module 1, and the touch unit in the fingerprint identification substrate includes the driving electrodes 221 and the sensing electrodes 222 disposed side by side, so when a touch object (e.g., a finger) touches the touch panel, in the fingerprint identification stage, the driving signal output to each driving electrode 221 will change due to the coupling of the valley and the ridge of the finger fingerprint to the corresponding sensing electrode 222, and at this time, the fingerprint information can be determined by detecting the charge variation between the driving electrodes 221 and the sensing electrodes 222, that is, the capacitance variation, so as to complete the identification of the fingerprint.
As shown in fig. 2, the fingerprint identification substrate includes not only the above structure, but also a plurality of scanning lines and a plurality of reading lines, and the plurality of scanning lines and the plurality of reading lines are arranged in a crossing manner and define a fingerprint identification unit 22; at this time, the driving electrodes 221 in the fingerprint identification units 22 in the same row are connected to the same scanning line, and the sensing electrodes 222 in the fingerprint identification units 22 in the same column are connected to the same reading line.
Specifically, in the fingerprint identification stage, the driving signal is input to the scanning lines line by line, and the amount of charge induced on the sensing electrode 222 is read through the reading line, so that the fingerprint identification chip 61 determines the capacitance of the driving electrode 221 and the sensing electrode 222 of the fingerprint identification unit 22 according to the amount of charge variation induced by the sensing electrode 222, so as to identify the fingerprint information.
Further, the fingerprint identification substrate in this embodiment further includes a flexible circuit board 6, and a fingerprint identification chip 61 is disposed on the flexible circuit board 6; the scanning lines and the reading lines are bound and connected with the flexible circuit board 6, so that the scanning lines and the reading lines are electrically connected with the fingerprint identification chip 61.
Specifically, a first connection pad should be disposed on the first substrate 21, the first connection pad is connected to the corresponding scan line and the corresponding read line, a second connection pad is disposed on the flexible circuit board 6, and the second connection pad is connected to a pin of the fingerprint identification chip 61 through a signal connection line; at this time, the first connection pad and the second connection pad may be bonded to complete the electrical connection between the scan line and the readout line and the fingerprint identification chip 61.
Wherein, the fingerprint identification chip 61 can integrate an image processing unit and an image comparison unit; the image processing unit can determine the fingerprint information according to the sensed variation on the sensing electrode 222 of the reading line, and then input the fingerprint information to the image comparison unit, and the image comparison unit compares the fingerprint information with the standard fingerprint information pre-stored in the image comparison unit and outputs the comparison result to the central processing unit of the touch panel so as to control the touch panel to execute a corresponding instruction according to the comparison result. For example, when the fingerprint information matches, an unlock function of the touch display panel may be implemented.
In the present embodiment, the resolution of the fingerprint recognition substrate may be in a range of 200ppi to 400 ppi. The area of each fingerprint identification unit 22 may be between 80 μm and 200 μm. The total area of each fingerprint identification unit 22 is 4mm × 4mm to 10mm × 10mm, and may be 8mm × 8 mm. The total area of the fingerprint identification units 22 in this embodiment is larger than that in the prior art, so that the resolution of the fingerprint identification substrate can be relatively reduced, and at this time, the area of each fingerprint identification unit 22 can be made large, so that the penetrating thickness of the fingerprint identification unit 22 can reach more than 0.4mm, and the fingerprint identification precision is greatly improved. The resolution on several fingerprint identification substrates, the size of the fingerprint identification elements 22, and the matrix size matching arrangement (one column for each group) of the fingerprint identification elements 22 are given below, as shown in table one.
| Resolution ratio | 127ppi | 200ppi | 142ppi | 250ppi | 170ppi | 300ppi |
| Size of the dimension | 200μm | 127μm | 178.5μm | 101.6μm | 150μm | 84.66μm |
| Matrix size | 20×20 | 32×32 | 23×23 | 40×40 | 27×27 | 48×48 |
Watch 1
In the present embodiment, the material of the first substrate 21 includes glass, that is, a glass substrate. Compared with a silicon-based substrate in a fingerprint identification substrate in the prior art, the glass substrate in the embodiment has lower cost.
In this embodiment, the fingerprint identification substrate may be connected to the display module through the first connection layer 3.
Specifically, a first substrate in the fingerprint identification substrate and a first substrate of a color film substrate in the liquid crystal module 1 are connected together through a first connecting layer 3; the material of the first connection layer 3 includes any one of optical clear conductor adhesive (OCA), optical liquid adhesive (OCR) and frame adhesive. Of course, other transparent adhesives may be used to connect the first substrate base plate and the first base 21 to complete the connection between the fingerprint identification base plate and the display module.
Certainly, as an optimal structure, the first substrate in the color filter substrate of the liquid crystal module 1 is reused as the first base 21, that is, the fingerprint identification unit 22 is formed on the side of the first substrate of the color filter substrate away from the color filter layer. Thus, the touch panel is light and thin.
The touch panel of the present embodiment includes not only the above structure, but also a cover plate 4 disposed on a side of the fingerprint identification unit 22 facing away from the first substrate 21.
It is preferable for the liquid crystal display device to generally include an upper polarizer on the light exit surface side of the liquid crystal module 1, and it is preferable in this embodiment to multiplex the upper polarizer as the cover plate 4. This is because, in the present embodiment, the fingerprint recognition unit 22 employs the driving electrode 221 and the sensing electrode 222 arranged side by side, and the fingerprint recognition unit 22 of this structure has a relatively thick penetration thickness, so that a relatively thick upper polarizer can be used as the cover plate 4.
In the embodiment, the cover plate 4 may be connected to the fingerprint identification substrate through the second connection layer 5; the material of the second connection layer 5 includes any one of transparent Optical Conductive Adhesive (OCA), optical liquid adhesive (OCR) and frame adhesive. Of course, other transparent adhesives may be used to attach the cover plate 4 to the fingerprint identification substrate.
Example 2:
the present embodiment provides a display device, which includes the fingerprint identification touch panel of embodiment 1, and therefore, the display device can implement a fingerprint identification function.
The display device may be: the display device comprises any product or component with a display function, such as a liquid crystal panel, electronic paper, an OLED panel, a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
It is to be understood that the above embodiments are merely exemplary embodiments that have been employed to illustrate the principles of the present invention, and that the present invention is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (16)
1. A fingerprint recognition touch panel, comprising: the fingerprint identification device comprises a display module and a fingerprint identification substrate arranged on the light emitting surface side of the display module; wherein,
the fingerprint identification substrate includes: a first substrate on which a plurality of fingerprint recognition units are disposed; each fingerprint identification unit comprises: the driving electrode and the induction electrode are arranged side by side;
the driving electrode is used for receiving a driving signal;
the induction electrode is used for inducing capacitance change between the induction electrode and the driving electrode in a fingerprint identification stage so as to identify fingerprints.
2. The fingerprint recognition touch panel of claim 1, wherein the fingerprint recognition substrate further comprises: a plurality of scan lines and a plurality of readout lines; the scanning lines and the reading lines are arranged in a crossed mode to define the fingerprint identification unit; wherein,
the driving electrodes in the fingerprint identification units in the same row are connected with the same scanning line;
the induction electrodes in the fingerprint identification units in the same column are connected with the same reading line.
3. The fingerprint recognition touch panel of claim 2, wherein the fingerprint recognition substrate further comprises: a flexible circuit board; a fingerprint identification chip is arranged on the flexible circuit board; wherein,
the scanning line and the reading line are bound and connected with the flexible circuit board, so that the scanning line and the reading line are electrically connected with the fingerprint identification chip.
4. The fingerprint recognition touch panel of claim 1, wherein the resolution of the fingerprint recognition substrate comprises 200ppi to 400 ppi.
5. The touch panel of claim 1, wherein the area of each fingerprint recognition unit is 80 μm to 200 μm.
6. The fingerprint recognition touch panel of claim 1, wherein the total area of each fingerprint recognition unit comprises 4mm x 4mm to 10mm x 10 mm.
7. The fingerprint recognition touch panel of claim 1, wherein the first substrate material comprises glass.
8. The fingerprint identification touch panel according to claim 1, wherein the display module comprises a first substrate and a second substrate disposed opposite to each other; wherein the first substrate includes: a first substrate base plate; wherein,
the first substrate base plate serves as the first base.
9. The fingerprint identification touch panel according to claim 1, wherein the display module comprises a first substrate and a second substrate disposed opposite to each other; wherein the first substrate includes: a first substrate base plate; wherein,
the first substrate base plate is connected with the first base through a first connecting layer.
10. The fingerprint recognition touch panel of claim 9, wherein the material of the first connection layer comprises: any one of transparent optical conductive adhesive, optical liquid glue and frame glue.
11. The fingerprint recognition touch panel of claim 1, further comprising: and the cover plate is arranged on the side, facing away from the first substrate, of the fingerprint identification unit.
12. The fingerprint recognition touch panel of claim 11, further comprising: the upper polaroid is positioned on the light emitting surface side of the display module; wherein,
the upper polarizer is used as the cover plate.
13. The fingerprint recognition touch panel of claim 11, wherein the cover plate is connected to the fingerprint recognition substrate via a second connection layer.
14. The fingerprint recognition touch panel of claim 13, wherein the material of the second connection layer comprises: any one of transparent optical conductive adhesive, optical liquid glue and frame glue.
15. The fingerprint identification touch panel of claim 1, wherein the display module comprises a liquid crystal module.
16. A display device comprising the fingerprint recognition touch panel according to any one of claims 1 to 15.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920895488.7U CN210038739U (en) | 2019-06-14 | 2019-06-14 | Fingerprint identification touch panel and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920895488.7U CN210038739U (en) | 2019-06-14 | 2019-06-14 | Fingerprint identification touch panel and display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210038739U true CN210038739U (en) | 2020-02-07 |
Family
ID=69347955
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920895488.7U Active CN210038739U (en) | 2019-06-14 | 2019-06-14 | Fingerprint identification touch panel and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210038739U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112035004A (en) * | 2019-06-14 | 2020-12-04 | 京东方科技集团股份有限公司 | Fingerprint identification touch panel and display device |
-
2019
- 2019-06-14 CN CN201920895488.7U patent/CN210038739U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112035004A (en) * | 2019-06-14 | 2020-12-04 | 京东方科技集团股份有限公司 | Fingerprint identification touch panel and display device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR102280155B1 (en) | Sensor screen and display device having the same | |
| KR102339546B1 (en) | Sensor screen and display device having the same | |
| US9128568B2 (en) | Capacitive touch panel with FPC connector electrically coupled to conductive traces of face-to-face ITO pattern structure in single plane | |
| US10430013B2 (en) | Touch substrate and manufacturing method thereof, display device, fingerprint determination device and method for determining fingerprint | |
| US10943944B2 (en) | Flat panel display having embedded optical imaging sensor located at rear surface of display | |
| CN109032420B (en) | Display device and operation method thereof | |
| CN105393261B (en) | The display of ultrasonic wave biological gage probe with periphery configuration | |
| US10776598B2 (en) | Display device with optical image sensor device for fingerprint detection | |
| CN108986673A (en) | Show equipment | |
| US20130169590A1 (en) | Structures and manufacturing methods for glass covered electronic devices | |
| KR20160129874A (en) | Integration of touch screen and fingerprint sensor assembly | |
| US20180088712A1 (en) | Display device and method of manufacturing the same | |
| CN207148471U (en) | Display screen component and terminal | |
| WO2016173154A1 (en) | Fingerprint recognition device, display screen and display device | |
| CN204480268U (en) | Fingerprint recognition module and the touch screen based on fingerprint recognition | |
| CN104700079A (en) | Fingerprint recognition module and touch screen based on fingerprint recognition | |
| KR102460111B1 (en) | Flat Panel Display Embedding Optical Imaging Sensor | |
| CN108171199A (en) | Touch panel and touch device | |
| US10839187B2 (en) | Sensing unit having improved reliability of touch data by sensing compensation part and display device including the same | |
| CN104766048B (en) | Fingerprint identification device and its manufacturing method, touch screen, terminal device | |
| CN204808340U (en) | Fingerprint identification device , touch -sensitive screen and electronic equipment | |
| KR101719975B1 (en) | Touchscreen device for finger print recognition | |
| CN112035004A (en) | Fingerprint identification touch panel and display device | |
| CN210038739U (en) | Fingerprint identification touch panel and display device | |
| GB2500749A (en) | Structures and manufacturing methods for impact-resistant glass-covered electronic display devices |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |