CN211787049U - Flexible touch module, display screen and electronic equipment - Google Patents

Flexible touch module, display screen and electronic equipment Download PDF

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Publication number
CN211787049U
CN211787049U CN202020429707.5U CN202020429707U CN211787049U CN 211787049 U CN211787049 U CN 211787049U CN 202020429707 U CN202020429707 U CN 202020429707U CN 211787049 U CN211787049 U CN 211787049U
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Prior art keywords
touch
flexible
fingerprint identification
capacitive
fingerprint
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CN202020429707.5U
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Chinese (zh)
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温扬志
邝建邦
李智锋
黄荣兆
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Yingtian Industrial Shenzhen Co ltd
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Yingtian Industrial Shenzhen Co ltd
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Abstract

The utility model relates to a flexible touch module, display screen and electronic equipment. A flexible touch module comprises a capacitive fingerprint identification diaphragm and a capacitive touch diaphragm which are stacked; the capacitive fingerprint identification membrane comprises a first fingerprint layer, a second fingerprint layer and a first flexible substrate positioned between the first fingerprint layer and the second fingerprint layer; the capacitive touch control membrane comprises a second flexible substrate and a first touch control layer located on one side of the second flexible substrate. The flexible touch module has a fingerprint identification function, when a finger presses on the capacitive fingerprint identification membrane, the fingerprint chip identifies whether the current action needs to start a fingerprint identification program, and if yes, the fingerprint is identified; and if not, entering a touch program. The problem of flexible touch module can not use fingerprint identification is solved. The utility model discloses still relate to a display screen including foretell flexible touch module and including the electronic equipment of foretell display screen.

Description

Flexible touch module, display screen and electronic equipment
Technical Field
The utility model relates to a show technical field, especially relate to a flexible touch module, display screen and electronic equipment.
Background
With the continuous development of electronic information products, consumer electronics continuously pursue large screens and full screens to meet the information communication requirements of man-machine exchange, and meanwhile, fingerprint identification is widely applied to the electronic information products. The traditional comprehensive screen mainly adopts the scheme that optical fingerprint identification is carried out under a local screen, and a plurality of fingerprint pictures are collected by a camera under a display screen in the optical fingerprint identification and are input into a system. When the user uses fingerprint identification, the camera collects fingerprints and then matches the fingerprints in the system, and if the fingerprints are matched, the fingerprint identification is passed. However, the camera is thick, occupies a large space, and is not suitable for a flexible folding touch screen.
SUMMERY OF THE UTILITY MODEL
Therefore, a flexible touch module, a display screen and an electronic device with a fingerprint identification function are needed.
A flexible touch module comprises a capacitive fingerprint identification diaphragm and a capacitive touch diaphragm which are stacked;
the capacitive fingerprint identification membrane comprises a first fingerprint layer, a second fingerprint layer and a first flexible substrate located between the first fingerprint layer and the second fingerprint layer;
the capacitive touch control membrane comprises a second flexible substrate and a first touch control layer located on one side of the second flexible substrate.
The flexible touch module has a fingerprint identification function, when a finger presses on the capacitive fingerprint identification membrane, the fingerprint chip identifies whether the current action needs to start a fingerprint identification program, and if yes, the fingerprint is identified; and if not, entering a touch program. The problem of flexible touch module can not use fingerprint identification is solved.
In one embodiment, the first touch layer is located between the capacitive fingerprint identification film and the second flexible substrate. When the touch control layer is used, the first touch control layer is closer to the position pressed by a finger, so that the touch control accuracy is improved.
In one embodiment, the capacitive touch film further includes a second touch layer on the other side of the second flexible substrate. Therefore, the touch control lines can be arranged on the first touch control layer and the second touch control layer, the situation that the lines are concentrated on one touch control layer is avoided, and the touch control layer is convenient to manufacture.
In one embodiment, the thickness of the second touch layer is 80nm to 200 nm.
In one embodiment, the thicknesses of the first flexible substrate and the second flexible substrate are both 10 μm to 30 μm, and the thicknesses of the first fingerprint pattern layer, the second fingerprint pattern layer and the first touch pattern layer are all 80nm to 200 nm. The thickness of the final product can be conveniently controlled.
In one embodiment, the flexible touch module further includes a flexible circuit board for simultaneously binding the capacitive fingerprint identification diaphragm and the capacitive touch diaphragm.
In one embodiment, the capacitive fingerprint identification membrane is fixedly connected with the capacitive touch membrane through an optical cement;
the flexible touch module further comprises a flexible cover plate, and the flexible cover plate is located on one side, far away from the capacitive touch membrane, of the capacitive fingerprint identification membrane.
In one embodiment, the flexible touch module includes a touch area, a fingerprint identification area and a bending area, the fingerprint identification area is located in the touch area, and the fingerprint identification area and the bending area are at least partially overlapped.
A display screen comprises the flexible touch module.
By applying the technical scheme of the utility model, because the flexible touch module has the fingerprint identification function, when a finger is pressed on the capacitive fingerprint identification membrane, the fingerprint chip identifies whether the current action needs to start a fingerprint identification program, if so, the fingerprint is identified; and if not, entering a touch program. The problem of flexible touch module can not use fingerprint identification is solved.
An electronic device comprises the display screen.
By applying the technical scheme of the utility model, because the flexible touch module has the fingerprint identification function, when a finger is pressed on the capacitive fingerprint identification membrane, the fingerprint chip identifies whether the current action needs to start the fingerprint identification program, if so, the fingerprint is identified; and if not, entering a touch program. The problem of flexible touch module can not use fingerprint identification is solved.
Drawings
Fig. 1 is a schematic longitudinal sectional view of a flexible touch module according to an embodiment of the present invention;
fig. 2 is a schematic plan view of a capacitive fingerprint recognition diaphragm according to an embodiment of the present invention;
fig. 3 is a schematic plan view of a capacitive touch diaphragm according to an embodiment of the present invention;
fig. 4 is a schematic cross-sectional view of a flexible touch module according to an embodiment of the present invention;
fig. 5 is a schematic plan view of a flexible touch module according to an embodiment of the present invention.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will be able to make similar modifications without departing from the spirit and scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, a flexible touch module 100 according to an embodiment of the present invention includes a capacitive fingerprint identification film 110 and a capacitive touch film 120 stacked one on another. That is to say, the utility model discloses an among the flexible touch module, fingerprint identification diaphragm and touch-control diaphragm are capacitanc, have solved the problem that traditional optical fingerprint identification camera thickness is thick like this.
The capacitive fingerprint identification film 110 includes a first fingerprint layer 111, a second fingerprint layer 112, and a first flexible substrate 113 located between the first fingerprint layer 111 and the second fingerprint layer 112.
The first flexible substrate 113 may be a CPI (color Polymer) or COP (Cyclo olefin Polymer) flexible substrate. Of course, the material of the first flexible substrate 113 is not limited thereto, and may be other sufficiently flexible materials.
When the capacitive fingerprint identification film 110 is prepared, the first fingerprint layer 111 and the second fingerprint layer 112 may be prepared by respectively coating conductive coatings on two sides of the first flexible substrate 113, and then respectively etching fingerprint identification patterns, as shown in fig. 2. The conductive coating can be made of nano silver wires and the like.
It should be noted that after the fingerprint identification patterns are etched, gaps between the fingerprint identification patterns can be selectively filled or not filled, and the subsequent performance of the product is not affected. The fingerprint identification pattern is not limited to this embodiment.
The capacitive touch film 120 includes a second flexible substrate 121 and a first touch layer 122 disposed on one side of the second flexible substrate 121.
When the capacitive touch film 120 is prepared, a first touch layer 122 may be formed by coating a conductive coating on one surface of the second flexible substrate 121 and then etching the touch pattern, as shown in fig. 3. The conductive coating can be made of nano silver wires and the like.
It should be noted that after the touch patterns are etched, gaps between the touch patterns may be selectively filled or not filled, and subsequent performance of the product is not affected. In addition, the touch pattern is not limited to this embodiment.
On the basis of the foregoing embodiment, the first touch layer 122 is located between the capacitive fingerprint identification film 110 and the second flexible substrate 121. When the touch screen is used, the first touch layer 122 is closer to a position pressed by a finger, so that the touch accuracy is improved.
Of course, the position of the first touch layer 122 is not limited thereto, and in other embodiments, the first touch layer 122 may also be located on a side of the second flexible substrate 121 away from the capacitive fingerprint identification film 110. When a finger presses on the capacitive fingerprint identification film, the identification program can also be started, and if the finger does not press on the capacitive fingerprint identification film, the touch control program is started.
On the basis of the foregoing embodiments, the capacitive touch film 120 further includes a second touch layer 123 located on the other side of the second flexible substrate 121. Therefore, the touch lines can be arranged on the first touch layer 122 and the second touch layer 123, so that the lines are prevented from being concentrated on one touch layer, and the touch display panel is convenient to manufacture.
In addition to the foregoing embodiments, the thickness of the second touch layer 123 is 80nm to 200 nm.
On the basis of the foregoing embodiments, the thicknesses of the first flexible substrate 113 and the second flexible substrate 121 are both 10 μm to 30 μm, and the thicknesses of the first fingerprint layer 111, the second fingerprint layer 112, and the first touch layer 122 are all 80nm to 200 nm. The thickness of the final product can be conveniently controlled.
Referring to fig. 4 and 5, based on the foregoing embodiments, the flexible touch module 100 further includes a Flexible Printed Circuit (FPC)130 for simultaneously binding the capacitive fingerprint identification film 110 and the capacitive touch film 120. In this embodiment, one flexible circuit board can bind the capacitive fingerprint identification diaphragm 110 and the capacitive touch diaphragm 120 to the control board.
On the basis of the foregoing embodiments, the capacitive fingerprint identification film 110 and the capacitive touch control film 120 are fixedly connected by the optical adhesive 140, as shown in fig. 1.
On the basis of the foregoing embodiments, the flexible touch module 100 further includes a flexible cover 150, and the flexible cover 150 is located on a side of the capacitive fingerprint identification film 110 away from the capacitive touch film 120. The flexible cover 150 is fixedly connected to the capacitive fingerprint recognition diaphragm 110 by an optical adhesive 160, as shown in fig. 1.
The thickness of the flexible cover plate 150 is 50 μm to 100 μm. When the thickness of the flexible cover 150 is 50 μm to 100 μm, the capacitive fingerprint identification film 110 and the capacitive touch film 120 can be protected from being scratched, and the flexible cover is also convenient to fold.
Referring to fig. 4 and 5, based on the foregoing embodiment, the flexible touch module 100 includes a touch area 170, a fingerprint identification area 180 and a bending area 190, the fingerprint identification area 180 is located in the touch area 170, and the fingerprint identification area 180 and the bending area 190 are at least partially overlapped.
The touch area 170 refers to an area for touch control when the flexible touch module 100 is used, that is, an area where a touch pattern is formed. The fingerprint identification area 180 is an area for fingerprint identification, i.e., an area where a fingerprint identification pattern is formed, when the flexible touch module 100 is used. The bending region 190 refers to a region for bending when the flexible touch module 100 is used.
Because fingerprint identification district 180 and bending zone 190 at least part overlap, that is to say, when flexible touch-control module is buckled at the bending zone, the region that overlaps both can buckle, again can fingerprint identification, therefore solved the problem that flexible touch-control module can not use fingerprint identification. In addition, because the flexible touch module 100 can be bent, it does not need to occupy a large space, and is suitable for a flexible folding touch screen.
In this embodiment, after the flexible touch module 100 is bent at the bending area 190, a part of the fingerprint identification area 180 is located on the front side, another part of the fingerprint identification area 180 is located on the back side, and in addition, the rest part of the fingerprint identification area 180 is located on the bending side. Thus, the omnibearing fingerprint identification can be realized.
It should be noted that, the utility model discloses an among the flexible touch module, fingerprint identification district and the position and the size in district of buckling all are not limited to above-mentioned embodiment.
The flexible touch module has a fingerprint identification function, when a finger presses on the capacitive fingerprint identification membrane, the fingerprint chip identifies whether the current action needs to start a fingerprint identification program, and if yes, the fingerprint is identified; and if not, entering a touch program. The problem of flexible touch module can not use fingerprint identification is solved.
An embodiment of a display screen includes the flexible touch module.
On the basis of the foregoing embodiment, the display screen is a full-screen.
By applying the technical scheme of the utility model, because the flexible touch module has the fingerprint identification function, when a finger is pressed on the capacitive fingerprint identification membrane, the fingerprint chip identifies whether the current action needs to start a fingerprint identification program, if so, the fingerprint is identified; and if not, entering a touch program. The problem of flexible touch module can not use fingerprint identification is solved.
An electronic device of an embodiment includes the display screen.
By applying the technical scheme of the utility model, because the flexible touch module has the fingerprint identification function, when a finger is pressed on the capacitive fingerprint identification membrane, the fingerprint chip identifies whether the current action needs to start the fingerprint identification program, if so, the fingerprint is identified; and if not, entering a touch program. The problem of flexible touch module can not use fingerprint identification is solved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. A flexible touch module is characterized by comprising a capacitive fingerprint identification diaphragm and a capacitive touch diaphragm which are stacked;
the capacitive fingerprint identification membrane comprises a first fingerprint layer, a second fingerprint layer and a first flexible substrate located between the first fingerprint layer and the second fingerprint layer;
the capacitive touch control membrane comprises a second flexible substrate and a first touch control layer located on one side of the second flexible substrate.
2. The flexible touch module of claim 1, wherein the first touch layer is located between the capacitive fingerprint identification film and the second flexible substrate.
3. The flexible touch module of claim 1, wherein the capacitive touch film further comprises a second touch layer on the other side of the second flexible substrate.
4. The flexible touch module according to claim 3, wherein the thickness of the second touch layer is 80nm to 200 nm.
5. The flexible touch module according to claim 1, wherein the first flexible substrate and the second flexible substrate have a thickness of 10 μm to 30 μm, and the first fingerprint layer, the second fingerprint layer and the first touch layer have a thickness of 80nm to 200 nm.
6. The flexible touch module according to claim 1, further comprising a flexible printed circuit board for simultaneously binding the capacitive fingerprint identification membrane and the capacitive touch membrane.
7. The flexible touch module according to claim 1, wherein the capacitive fingerprint identification film is fixedly connected to the capacitive touch film via an optical adhesive;
the flexible touch module further comprises a flexible cover plate, and the flexible cover plate is located on one side, far away from the capacitive touch membrane, of the capacitive fingerprint identification membrane.
8. The flexible touch module according to any one of claims 1 to 7, wherein the flexible touch module comprises a touch area, a fingerprint identification area and a bending area, the fingerprint identification area is located in the touch area, and the fingerprint identification area and the bending area are at least partially overlapped.
9. A display screen, characterized by comprising the flexible touch module of any one of claims 1-8.
10. An electronic device characterized by comprising the display screen of claim 9.
CN202020429707.5U 2020-03-27 2020-03-27 Flexible touch module, display screen and electronic equipment Active CN211787049U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020429707.5U CN211787049U (en) 2020-03-27 2020-03-27 Flexible touch module, display screen and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020429707.5U CN211787049U (en) 2020-03-27 2020-03-27 Flexible touch module, display screen and electronic equipment

Publications (1)

Publication Number Publication Date
CN211787049U true CN211787049U (en) 2020-10-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020429707.5U Active CN211787049U (en) 2020-03-27 2020-03-27 Flexible touch module, display screen and electronic equipment

Country Status (1)

Country Link
CN (1) CN211787049U (en)

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