CN210804358U - Display module group with screen fingerprint identification and touch control functions - Google Patents
Display module group with screen fingerprint identification and touch control functions Download PDFInfo
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- CN210804358U CN210804358U CN201922005164.4U CN201922005164U CN210804358U CN 210804358 U CN210804358 U CN 210804358U CN 201922005164 U CN201922005164 U CN 201922005164U CN 210804358 U CN210804358 U CN 210804358U
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Abstract
The utility model provides a display module with screen fingerprint identification and touch control functions, which comprises a transparent glass cover plate, wherein one side of the transparent glass cover plate is sequentially provided with a CF glass substrate, a TFT glass substrate and a backlight plate, and the backlight plate is sequentially provided with a lower polaroid and a liquid crystal box towards one side of the TFT glass substrate; one side of the CF glass substrate, which faces the transparent glass cover plate, is provided with a conductive circuit layer, a fingerprint identification layer and a gesture identification layer, and the upper polarizer is arranged on the surface of one side, which faces the transparent glass cover plate, of the gesture identification layer and is attached to the transparent glass cover plate. The utility model integrates the fingerprint identification and touch control functions into the module, can reduce the laminating process, reduce the use of OCA optical cement, and greatly reduce the thickness of the touch display module; meanwhile, the technology of identifying the finger print under the screen of the full screen can be realized, and the use experience of a client is improved; the gesture recognition layer that its set up has effectively reduced comprehensive screen fingerprint identification and has had the risk of mistake touching, and the practicality is strong.
Description
The technical field is as follows:
the utility model relates to a touch-sensitive screen technical field, concretely relates to have display module assembly of screen fingerprint identification and touch-control function concurrently.
Background art:
fingerprint identification technology is a comprehensive term of a series of technologies. The fingerprint identification method comprises a series of processes of finger fingerprint image acquisition, processing, feature extraction and comparison, the mainstream fingerprint identification product comprises optical identification and capacitance identification, and the mobile terminal is more applied to capacitance identification. The method is the most widely applied biometric identification technology at present, and has wide application prospect in the field of electronic products by utilizing the uniqueness and stability of human fingerprints.
The capacitive touch technology works by utilizing current induction of a human body, and the touch screen is quite bright in market under the drive of electronic products such as mobile phones and flat panels. The capacitive touch screen has many advantages, such as effectively preventing the influence of external environmental factors on the touch screen, even if the surface has stains, the touch screen can also accurately calculate the touch position, and the capacitive touch screen has the advantages of high precision, quick response, higher resolution, higher scratch resistance and the like.
At present, in the market, fingerprint identification touch-control display module's preparation flow generally is touch-sensitive screen and LCD module laminating, then adds wherein fingerprint identification module when the complete machine is assembled, but fingerprint identification, touch-control function and LCD triplex become touch-control display module through the OCA laminating, and the processing procedure is complicated, and the cost is higher, and when the in-service use, fingerprint identification also has the risk that the mistake touched, has certain inconvenience during the use.
Under the circumstances, a more applicable display structure needs to be provided to meet the actual use requirements.
The utility model has the following contents:
the utility model aims at providing a have screen fingerprint identification and touch-control function's display module assembly concurrently, not only possess fingerprint identification and touch-control function simultaneously, and can effectively reduce fingerprint identification and have the risk of mistake touching.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a have display module assembly of screen fingerprint identification and touch-control function concurrently, including the clear glass apron, clear glass apron one side is provided with CF glass substrate, TFT glass substrate and backlight in order, be provided with the upper polaroid between CF glass substrate and the clear glass apron, the backlight is provided with lower polaroid and liquid crystal box towards TFT glass substrate one side in order; the CF glass substrate faces one side surface of the transparent glass cover plate, a conductive circuit layer is arranged on one side surface of the CF glass substrate, the conductive circuit layer faces one side surface of the transparent glass cover plate, a fingerprint identification layer and a gesture identification layer are sequentially arranged on the conductive circuit layer, the upper polaroid is arranged on one side surface of the gesture identification layer, the gesture identification layer faces the transparent glass cover plate, and the upper polaroid is attached to the transparent glass cover plate.
The fingerprint identification layer is prepared by an ultrasonic fingerprint identification sensor.
And coating metal conductive ink on the surface of one side, facing the transparent glass cover plate, of the CF glass substrate to form the conductive circuit layer.
The conductive circuit layer comprises a plurality of driving wires which are arranged in parallel along the length direction of the transparent glass cover plate and used for providing driving signals, and a plurality of detection wires which are arranged in parallel along the width direction of the transparent glass cover plate and used for providing capacitive coupling signals, wherein capacitive nodes are formed at the intersections of the driving wires and the detection wires.
The driving line and the detecting line are arranged vertically to each other along the horizontal direction.
The gesture recognition layer comprises a gesture recognition sensor and a gesture recognition chip, and the gesture recognition sensor is electrically connected with the gesture recognition chip.
The upper polaroid is attached to the transparent glass cover plate through OCA optical cement.
And a surface treatment layer is also attached to the surface of one side of the transparent glass cover plate, which is far away from the CF glass substrate.
The surface treatment layer is one or more of an anti-dazzle treatment layer, a hardening treatment layer, an anti-reflection treatment layer and an anti-fingerprint treatment layer.
The utility model relates to a have screen fingerprint identification and touch-control function's display module assembly's beneficial effect concurrently: the fingerprint identification and touch control functions are integrated on the module, so that the laminating process can be reduced, the use of OCA optical cement is reduced, and the thickness of the touch control display module is greatly reduced; meanwhile, the technology of identifying the finger print under the screen of the full screen can be realized, and the use experience of a client is improved; the gesture recognition layer that its set up has effectively reduced comprehensive screen fingerprint identification and has had the risk of mistake touching, and the practicality is strong.
Description of the drawings:
fig. 1 is a schematic structural diagram of a display module having both screen fingerprint recognition and touch control functions according to the present invention;
in the figure: 1. transparent glass apron, 2, OCA optical cement, 3, last polaroid, 4, gesture recognition layer, 5, fingerprint identification layer, 6, conducting wire layer, 7, CF glass substrate, 8, liquid crystal cell, 9, TFT glass substrate, 10, lower polaroid, 11, board in a poor light.
The specific implementation mode is as follows:
the technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
According to fig. 1, the utility model provides a have display module assembly of screen fingerprint identification and touch-control function concurrently, including transparent glass apron 1, transparent glass apron 1 one side is provided with CF glass substrate 7, TFT glass substrate 9 and backlight 11 in order, be provided with upper polarizer 3 between CF glass substrate 7 and the transparent glass apron 1, backlight 11 is provided with lower polarizer 10 and liquid crystal box 8 towards TFT glass substrate 9 one side in order; CF glass substrate 7 orientation one side surface of transparent glass apron 1 is provided with conducting wire layer 6, conducting wire layer 6 orientation one side surface of transparent glass apron 1 is provided with fingerprint identification layer 5 and gesture recognition layer 4 in order, go up polaroid 3 set up in gesture recognition layer 4 orientation one side surface of transparent glass apron 1, go up polaroid 3 with transparent glass apron 1 laminates mutually, in this embodiment, go up polaroid 3 with transparent glass apron 1 is laminated mutually through OCA optical cement 2.
Further, in this embodiment, the CF glass substrate 7 is coated with a metal conductive ink on a surface facing the transparent glass cover plate 1 to form the conductive circuit layer 6, specifically, the conductive circuit layer 6 includes a plurality of driving lines which are arranged in parallel along the length direction of the transparent glass cover plate 1 and provide driving signals, and a plurality of detection lines which are arranged in parallel along the width direction of the transparent glass cover plate 1 and provide capacitive coupling signals, wherein a capacitive node is formed at an intersection of the driving lines and the detection lines, and the driving lines and the detection lines are arranged perpendicular to each other along the horizontal direction.
Further, in this embodiment, the fingerprint identification layer 5 is prepared for an ultrasonic fingerprint identification sensor, and the positions of the ridges and valleys of the fingerprint are identified by using the differences of absorption, reflection and penetration of the sound waves by the finger textures and other materials. The ultrasonic fingerprint identification sensor actively sends out ultrasonic waves, penetrates through a screen and glass to reach the skin of a human body, then receives a reflected signal, and utilizes the difference between the surface of the fingerprint and the air density to construct a 3D fingerprint image which is compared with fingerprint information. The gesture recognition layer 4 comprises a gesture recognition sensor and a gesture recognition chip, the gesture recognition sensor is electrically connected with the gesture recognition chip, and the structure can be directly purchased from the market and is an existing structure. Specifically, a gesture recognition layer 4 is formed on the upper surface of the ultrasonic fingerprint recognition sensor, and the gesture recognition layer 4 can detect the sliding distance. The specific operation steps are as follows: after the fingerprints of the fingers at any position of the screen are compared successfully, the mobile phone interface can start a sliding unlocking function, the sliding unlocking function needs to have a specified sliding distance and direction (360-degree any angle), the sliding distance is not correct according to the direction, the unlocking cannot be successful, and the risk of mistaken touch in comprehensive screen fingerprint identification can be effectively reduced.
Further, in the present embodiment, a surface treatment layer is further attached to a surface of the transparent glass cover plate 1 on a side away from the CF glass substrate 7; the surface treatment layer is one or more of an anti-dazzle treatment layer, a hardening treatment layer, an anti-reflection treatment layer and an anti-fingerprint treatment layer.
The following detailed description the utility model relates to a have display module's of screen fingerprint identification and touch-control function once preparation process concurrently:
firstly, prefabricating a CF glass substrate 7 and a TFT glass substrate 9, specifically, sequentially manufacturing a black matrix, a color resistance layer, an ITO (indium tin oxide) layer and a Space on a certain transparent glass substrate through the links of film coating, photoresist coating, exposure, development, etching, photoresist stripping, cleaning and the like to prepare the CF glass substrate 7; another transparent glass substrate needs to be cleaned by special liquid, and then a required thin film pattern layer is formed in the links of film coating, photoresist coating, exposure, development, etching, photoresist stripping, cleaning and the like on the surface of the clean and dry transparent glass substrate, so that the TFT glass substrate 9 is prepared.
Then coating metal conductive ink on the surface of one side, facing the transparent glass cover plate 1, of the CF glass substrate 7 to form the conductive circuit layer 6, wherein the conductive circuit layer 6 comprises a plurality of driving wires which are arranged in parallel along the length direction of the transparent glass cover plate 1 and are used for providing driving signals, and a plurality of detection wires which are arranged in parallel along the width direction of the transparent glass cover plate 1 and are used for providing capacitive coupling signals, capacitive nodes are formed at the intersections of the driving wires and the detection wires, and the driving wires and the detection wires are arranged in a mutually perpendicular mode along the horizontal direction. And a fingerprint identification layer 5 and a gesture identification layer 4 are sequentially arranged on the surface of one side, facing the transparent glass cover plate 1, of the conductive circuit layer 6.
Secondly, respectively printing frame glue and conductive glue on the prepared TFT glass substrate 9 and the CF glass substrate 7 by a screen printing method, uniformly distributing supporting materials on the TFT glass substrate 9, superposing the CF glass substrate 7 on the supporting materials on the TFT glass substrate 9 to form a cubic frame structure, attaching sealing materials on each side wall of the cubic frame structure, pressurizing and curing at high temperature to obtain a sealed glass box structure with a certain thickness, pouring liquid crystal into the manufactured glass box, sealing the injection hole, and forming a liquid crystal box 8 structure between the TFT glass substrate 9 and the CF glass substrate 7.
And finally, covering a polarizer 3 on the gesture recognition layer 4 of the CF glass substrate 7, covering a lower polarizer 10 on one side, away from the CF glass substrate 7, of the TFT glass substrate 9, pressing the prepared structure, assembling a backlight plate 11 on the lower polarizer 10, and performing aging test on the assembled whole structure. Use OCA optical cement 2 to laminate with this package assembly's last polaroid 3 and clear glass apron 1, all need in the defoaming machine deaeration (the condition is 60 ℃/20 min/6 kg) after the laminating is accomplished, finally prepare and obtain the utility model discloses a structure.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is intended to be covered by the claims.
Claims (9)
1. The utility model provides a have display module assembly of screen fingerprint identification and touch-control function concurrently which characterized in that includes: the backlight module comprises a transparent glass cover plate, wherein one side of the transparent glass cover plate is sequentially provided with a CF glass substrate, a TFT glass substrate and a backlight plate, an upper polarizer is arranged between the CF glass substrate and the transparent glass cover plate, and one side of the backlight plate facing the TFT glass substrate is sequentially provided with a lower polarizer and a liquid crystal box; the CF glass substrate faces one side surface of the transparent glass cover plate, a conductive circuit layer is arranged on one side surface of the CF glass substrate, the conductive circuit layer faces one side surface of the transparent glass cover plate, a fingerprint identification layer and a gesture identification layer are sequentially arranged on the conductive circuit layer, the upper polaroid is arranged on one side surface of the gesture identification layer, the gesture identification layer faces the transparent glass cover plate, and the upper polaroid is attached to the transparent glass cover plate.
2. The display module of claim 1, wherein the display module has functions of screen fingerprint identification and touch control, and comprises: the fingerprint identification layer is prepared by an ultrasonic fingerprint identification sensor.
3. The display module of claim 1, wherein the display module has functions of screen fingerprint identification and touch control, and comprises: and coating metal conductive ink on the surface of one side, facing the transparent glass cover plate, of the CF glass substrate to form the conductive circuit layer.
4. The display module of claim 3, wherein the display module has functions of screen fingerprint identification and touch control, and comprises: the conductive circuit layer comprises a plurality of driving wires which are arranged in parallel along the length direction of the transparent glass cover plate and used for providing driving signals, and a plurality of detection wires which are arranged in parallel along the width direction of the transparent glass cover plate and used for providing capacitive coupling signals, wherein capacitive nodes are formed at the intersections of the driving wires and the detection wires.
5. The display module of claim 4, wherein the display module has functions of screen fingerprint identification and touch control, and comprises: the driving line and the detecting line are arranged vertically to each other along the horizontal direction.
6. The display module of claim 1, wherein the display module has functions of screen fingerprint identification and touch control, and comprises: the gesture recognition layer comprises a gesture recognition sensor and a gesture recognition chip, and the gesture recognition sensor is electrically connected with the gesture recognition chip.
7. The display module of claim 1, wherein the display module has functions of screen fingerprint identification and touch control, and comprises: the upper polaroid is attached to the transparent glass cover plate through OCA optical cement.
8. The display module of claim 1, wherein the display module has functions of screen fingerprint identification and touch control, and comprises: and a surface treatment layer is also attached to the surface of one side of the transparent glass cover plate, which is far away from the CF glass substrate.
9. The display module of claim 8, wherein the display module has functions of screen fingerprint identification and touch control:
the surface treatment layer is one or more of an anti-dazzle treatment layer, a hardening treatment layer, an anti-reflection treatment layer and an anti-fingerprint treatment layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922005164.4U CN210804358U (en) | 2019-11-19 | 2019-11-19 | Display module group with screen fingerprint identification and touch control functions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922005164.4U CN210804358U (en) | 2019-11-19 | 2019-11-19 | Display module group with screen fingerprint identification and touch control functions |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111843187A (en) * | 2020-07-30 | 2020-10-30 | 广东大族粤铭激光集团股份有限公司 | Laser screen separation method |
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2019
- 2019-11-19 CN CN201922005164.4U patent/CN210804358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111843187A (en) * | 2020-07-30 | 2020-10-30 | 广东大族粤铭激光集团股份有限公司 | Laser screen separation method |
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