CN107819910A - Cover plate assembly, display panel and electronic equipment - Google Patents

Abstract

The present application discloses a cover assembly, a display panel, and an electronic device. The cover assembly includes a first cover and a second cover that sequentially cover the display area of the electronic device. The first cover and the second A fingerprint identification sensor is arranged between the two cover plates, and the thickness of the second cover plate is smaller than that of the first cover plate. The first cover can protect the display module, and the thickness of the second cover is small, so the touch electric field of the fingerprint identification sensor can easily penetrate the second cover with a small thickness, and fingerprint recognition is more convenient and accurate.

Description

Cover Assemblies, Display Panels and Electronics

technical field

The present application relates to the technical field of electronic equipment, in particular to a cover assembly, a display panel and electronic equipment.

Background technique

The fingerprint identification of the existing electronic equipment utilizes a special fingerprint identification module. For example, the fingerprint identification module is arranged on the back shell of the smart phone and the back of the screen of the smart phone, which is inconvenient to use. Or the fingerprint identification module is arranged on the non-display area of the display screen on the front of the smart phone, and grooves or holes need to be provided corresponding to the fingerprint identification module, but the integrity of the display screen is destroyed.

Contents of the invention

Embodiments of the present application provide a cover assembly, a display panel, and an electronic device, which may not damage the integrity of the display screen.

In a first aspect, an embodiment of the present application provides a cover assembly, which is applied to an electronic device. The cover assembly includes a first cover and a second cover that sequentially cover the display area of the electronic device. The first A fingerprint recognition sensor is provided between the cover plate and the second cover plate, and the thickness of the second cover plate is smaller than that of the first cover plate.

In a second aspect, an embodiment of the present application provides a display panel, including a display module and a cover assembly, where the cover assembly is the above-mentioned cover assembly.

In a third aspect, an embodiment of the present application provides an electronic device, the electronic device includes a casing and a display panel disposed in the casing, and the display panel is the display panel as described above.

The cover plate assembly provided in the embodiment of the present application includes a first cover plate and a second cover plate that sequentially cover the display area of the electronic device, a fingerprint recognition sensor is provided between the first cover plate and the second cover plate, and the second cover plate The thickness is smaller than the thickness of the first cover plate. Both the first cover and the second cover are set corresponding to the display area of the electronic device, a fingerprint recognition sensor is arranged between them, and the thickness of the second cover is smaller than the thickness of the first cover, the first cover can protect the The effect of the display module, the thickness of the second cover is small, the touch electric field of the fingerprint recognition sensor is easier to penetrate the second cover with a small thickness, and the fingerprint recognition is more convenient and accurate, without opening or slotting, which improves the display screen integrity.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, other drawings can also be obtained based on these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 2 is another schematic structural diagram of an electronic device provided by an embodiment of the present application.

FIG. 3 is a schematic structural diagram of a self-capacitive touch display panel provided by an embodiment of the present application.

FIG. 4 is a cross-sectional view of the self-capacitive touch display panel shown in FIG. 3 along the direction A-A.

FIG. 5 is a schematic structural diagram of a cover assembly and a display module provided by an embodiment of the present application.

FIG. 6 is another structural schematic diagram of the cover assembly and the display module provided by the embodiment of the present application.

FIG. 7 is a schematic diagram of the first structure of the cover assembly provided by the embodiment of the present application.

FIG. 8 is a schematic diagram of a second structure of the cover assembly provided by the embodiment of the present application.

FIG. 9 is a schematic diagram of a third structure of the cover assembly provided by the embodiment of the present application.

FIG. 10 is a schematic diagram of a fourth structure of the cover assembly provided by the embodiment of the present application.

FIG. 11 is a schematic structural diagram of a fingerprint recognition sensor provided by an embodiment of the present application.

FIG. 12 is a schematic structural diagram of a fingerprint cover for identifying fingerprints provided by an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Apparently, the described embodiments are only some of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts belong to the scope of protection of this application.

In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as limiting the application. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise specifically defined.

In the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be mechanically connected, or electrically connected, or can communicate with each other; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components or the interaction of two components relation. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.

In this application, unless otherwise expressly specified and limited, a first feature being "on" or "under" a second feature may include direct contact between the first and second features, and may also include the first and second features Not in direct contact but through another characteristic contact between them. Moreover, "above", "above" and "above" the first feature on the second feature include that the first feature is directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature. "Below", "beneath" and "under" the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different implementations or examples for implementing different structures of the present application. To simplify the disclosure of the present application, components and arrangements of specific examples are described below. Of course, they are examples only and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or reference letters in various instances, such repetition is for simplicity and clarity and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, various specific process and material examples are provided herein, but one of ordinary skill in the art may recognize the use of other processes and/or the use of other materials.

Embodiments of the present application provide a cover assembly, a display panel and electronic equipment. The details will be described respectively below.

In this embodiment, description will be made from the perspective of a display panel. Specifically, the display panel may be set in an electronic device, such as a mobile phone, a personal computer, a tablet computer, a PDA (Personal Digital Assistant, PDA), and the like.

Please refer to 1. FIG. 1 is a schematic structural diagram of an electronic device provided in an embodiment of the present application. The electronic device 7 includes a casing 8 , a display panel 1 , a printed circuit board 3 , and a battery 4 .

Wherein, the housing 8 may include a cover plate 6, a middle frame 2 and a rear cover 5, the cover plate 6, the middle frame 2 and the rear cover 5 are combined to form the housing 8, and the housing 8 has a structure through the cover plate 6, the middle The enclosed space formed by the frame 2 and the rear cover 5 is used to accommodate components such as the self-capacitive touch display panel 1 , the printed circuit board 3 , and the battery 4 . In some embodiments, the cover plate 6 is set on the middle frame 2, the back cover 5 is set on the middle frame 2, the cover plate 6 and the back cover 5 are located on the opposite sides of the middle frame 2, the cover plate 6 and the back cover 5 Oppositely, the closed space of the casing 8 is located between the cover plate 6 and the rear cover 5 .

In some embodiments, the housing 8 may be a metal housing. It should be noted that the material of the housing 8 in the embodiment of the present application is not limited thereto, and other methods may also be used, for example, the housing 8 may include a plastic part and a metal part. Another example: the casing 8 may be a plastic casing. Wherein, the cover plate 6 may be a transparent glass cover plate. In some embodiments, the cover plate 6 may be a glass cover plate made of materials such as sapphire.

It should be noted that the structure of the housing in the embodiment of the present application is not limited thereto, for example, the rear cover and the middle frame are integrally formed to form a middle frame structure. Specifically, the casing 8 includes a cover plate 6 and a middle frame 2, and the cover plate 6 and the middle frame 2 are fixed to each other to form a closed space for accommodating the self-contained touch display panel 1, the printed circuit board 3, and the battery 4. and other devices.

Wherein, the printed circuit board 3 is installed in the housing 8, the printed circuit board 3 can be the main board of the electronic device 7, and the printed circuit board 3 can be integrated with an antenna, a motor, a microphone, a camera, a light sensor, a receiver And functional components such as processors.

In some embodiments, the printed circuit board 3 is fixed inside the housing 8 . Specifically, the printed circuit board 3 can be screwed to the middle frame 2 by screws, or can be snapped to the middle frame 2 by buckling. It should be noted that the method for fixing the printed circuit board 3 to the middle frame 2 in the embodiment of the present application is not limited to this, and other methods may also be used, such as a method of fixing together by buckles and screws.

Wherein, the battery 4 is installed in the casing 8 , and the battery 4 is electrically connected to the printed circuit board 3 to provide power to the electronic device 7 . The housing 8 can serve as a battery cover for the battery 4 . The casing 8 covers the battery 4 to protect the battery 4 , specifically, the back cover covers the battery 4 to protect the battery 4 , so as to reduce the damage to the battery 4 due to collision and drop of the electronic device 7 .

Wherein, the housing 8 is used to form the outer contour of the terminal 1 . The casing 8 may be a metal casing, such as an aluminum alloy casing 8 . It should be noted that the material of the housing 8 in the embodiment of the present application is not limited thereto, and other methods may also be used, for example, the housing 8 may be a ceramic middle frame or a glass middle frame. Another example: the casing 8 may be a plastic middle frame. For another example, the housing 8 can be a structure in which metal and plastic cooperate with each other, and the plastic part can be formed by injection molding onto a metal plate.

In the embodiment of the present application, the display panel is described by taking a self-capacitive touch display panel as an example. Wherein, the self-capacitive touch display panel 1 is installed in the housing 8 , and at the same time, the self-capacitive touch display panel 1 is electrically connected to the printed circuit board 3 to form the display surface of the electronic device 7 . The self-capacitive touch display panel 1 includes a display area and a non-display area. The display area can be used to display the screen of the electronic device 7 or provide touch control for the user. The top area of the non-display area is provided with openings for sound and light transmission, and the bottom of the non-display area can be provided with functional components such as fingerprint modules and touch buttons. Wherein the cover plate 6 is installed on the self-capacitive touch display panel 1 to cover the self-capacitive touch display panel 1 to form the same display area and non-display area as the self-capacitive touch display panel 1, for details, please refer to The display area and the non-display area of the self-capacitive touch display panel 1 .

It should be noted that the structure of the self-capacitive touch display panel 1 is not limited thereto. For example, the display screen may be a full screen or a heterosexual screen. For details, please refer to FIG. 2 , which is another schematic structural diagram of an electronic device provided by an embodiment of the present application. The difference between the electronic device in FIG. 2 and the electronic device in FIG. 1 is that the non-display area is directly formed on the self-capacitive touch display panel 1, for example, the non-display area of the self-capacitive touch display panel 1 is set as transparent structure, so that light signals can pass through, or open holes or gaps for light transmission in the non-display area of the self-capacitive touch display panel 20 directly, and the front camera, photoelectric sensor, etc. can be arranged in the non-display area The location of the area is convenient for the front camera to take pictures and the photoelectric sensor to detect.

In some embodiments, the display panel may be a type of display such as a liquid crystal display (Liquid Crystal Display, LCD) or an organic light-emitting diode display (Organic Light-Emitting Diode, OLED). When the display panel is a liquid crystal display, it may include a backlight plate, a lower polarizer, an array substrate, a liquid crystal layer, a color filter substrate, and an upper polarizer that are stacked in sequence. When the display panel is an organic light emitting diode display, it may include a base layer, an anode, an organic layer, a conductive layer, an emission layer, and a cathode that are sequentially stacked. In some embodiments, the display screen is a transparent display screen, which has a transparent property and can allow signals to pass through.

Please refer to FIG. 3 and FIG. 4 , FIG. 3 is a schematic structural diagram of the self-capacitive touch display panel provided by the embodiment of the present application, and FIG. 4 is a cross-sectional view of the self-capacitive touch display panel shown in FIG. 3 in the A-A direction. The self-capacitive touch display panel 1 includes a color filter substrate 20 , an array substrate 10 and a liquid crystal layer 30 . The array substrate 10 can include multiplexed common electrodes, which can be divided into multiple touch electrodes. During the touch period, the touch electrodes receive touch signals to realize touch control. During the display period, all The touch electrodes are all connected to the common electrode signal to realize display; specifically, the touch module and the display mode can be driven separately in a time-sharing driving manner.

In some embodiments, please refer to FIG. 5 and FIG. 6. FIG. 5 is a schematic structural diagram of the cover assembly and the display module provided by the embodiment of the present application, and FIG. 6 is the cover assembly and the display module provided by the embodiment of the present application. Another schematic diagram of the structure. The cover plate 6 can also be replaced by a cover plate assembly 60. The cover plate assembly 60 includes a first cover plate 61 and a second cover plate 62 that sequentially cover the display area of the electronic device 7, that is, the display of the first cover plate 61 and the display panel 1 The modules 11 are bonded together, and a fingerprint recognition sensor 63 is provided between the first cover 61 and the second cover 62. The fingerprint recognition sensor 63 can be a transparent sensor, such as an ITO sensor. Wherein the thickness of the second cover plate 62 is smaller than the thickness of the first cover plate 61 . The smaller the thickness of the second cover plate 62 is, the better the touch electric field penetration effect of the fingerprint recognition sensor 63 is, and the fingerprint recognition is more accurate. Wherein the first cover plate 61 may be the cover plate 6 in the above embodiment. A thinner second cover 62 is provided on the conventional cover, and a fingerprint recognition sensor 63 is provided between the two covers. The first cover 61 can protect the display module 11. The thickness of the second cover 62 is small, and the touch electric field of the fingerprint recognition sensor 63 can easily penetrate the second cover 62 with a small thickness, so that it is more convenient to identify fingerprints. More accurate, no holes or slots required, improving display integrity. Moreover, the fingerprint identification sensor 63 is arranged in the display area, which increases the proportion of the display area of the display panel 1 . The display module 11 includes a thin film transistor (TFT, Thin Film Transistor) 111 and a color filter (CF, color Filter) 112 .

In some embodiments, the second cover plate thickness 62 is less than or equal to 0.15 mm. Of course, the thickness of the second cover plate 62 may also be 0.1 mm to 0.15 mm. The smaller the thickness of the second cover plate 62 is, the better the touch electric field penetration effect of the fingerprint recognition sensor 63 is, and the fingerprint recognition is more accurate. However, the thickness of the second cover plate 62 cannot be too small, otherwise, the strength of the second cover plate 62 is not enough.

The material of the first cover plate 61 and/or the second cover plate 62 can be transparent and relatively hard materials such as glass, plastic, resin, sapphire and the like. The first cover plate 61 and the second cover plate 62 can be made of the same material, but the thickness is different. The first cover plate 61 and the second cover plate 62 can also be made of different materials, and the second cover plate 62 can be made of a material with higher hardness because of its smaller thickness.

In some embodiments, the first cover plate 61 and the second cover plate 62 are equal in size. The first cover plate 61 and the second cover plate 62 adopt full bonding technology, which are perfectly bonded together, with a higher degree of bonding, not easy to separate, and not easy to produce deviation. The first cover plate 61 may cover the entire display area and non-display area of the display panel 1 . The first cover 61 can also cover the entire upper surface of the electronic device 7 , and the upper surface is the light emitting surface of the display panel 1 of the electronic device 7 .

In some embodiments, the first cover 61 includes a first inner surface 611 close to the display area of the electronic device 7, and a first outer surface 612 corresponding to the first inner surface 611; that is, the first inner surface 611 faces the interior of the electronic device , the first outer surface 612 faces the second cover plate 62 . The second cover 62 includes a second inner surface 621 close to the first cover 61, and a second outer surface 622 corresponding to the second inner surface 621; that is, the second inner surface 621 is close to the first cover 61, and the second outer surface Surface 622 faces out of the electronic device. The fingerprint identification sensor 62 is disposed on the second inner surface 621 . The fingerprint identification sensor 62 can be arranged on the second inner surface 621 of the second cover 62 , and there is little modification to the existing cover. The fingerprint identification sensor 63 can also be arranged on the first outer surface 612 of the first cover plate 61 , which can be realized by continuing processing on the basis of the existing cover plate.

In some embodiments, please refer to FIG. 7 , which is a schematic diagram of a first structure of a cover assembly provided in an embodiment of the present application. A first groove 613 is formed on a side of the first cover 61 corresponding to the second cover 62 , and the second cover 62 is disposed in the first groove 613 .

The size of the second cover plate 62 matches the first groove 613 , and the second cover plate 62 just fits into the first groove 613 , so that the second cover plate 62 can be well fixed. The fingerprint recognition sensor 63 may be disposed on the bottom surface of the first groove 613 , or may be disposed on the surface of the second cover plate 62 facing the first cover plate 61 .

In some embodiments, please refer to FIG. 8 . FIG. 8 is a second structural schematic diagram of the cover assembly provided by the embodiment of the present application. The first cover plate 61 is provided with a first groove 613 corresponding to the side of the second cover plate 62, and the second cover plate 62 includes a second base plate 625, and the second base plate 625 is formed to protrude outward corresponding to the first groove 613 and the first groove 613. The groove 613 matches the second protrusion 626 .

The second cover plate 62 includes a second base plate 625 and a second protrusion 626, the first cover plate 61 includes a first base plate 615 and a first groove 613, the first base plate 615 and the second base plate 625 are equal in size, and the first groove 613 is matched with the second protruding portion 626 , and the fingerprint identification sensor 63 can be disposed on the bottom surface of the first groove 613 or on the outer surface of the second protruding portion 626 . The displacement of the first cover plate 61 and the second cover plate 62 can be well restricted, and it is not easy to separate. The sum of the thicknesses of the second substrate 625 and the second protrusion 626 of the second cover 62 is less than or equal to 0.15 mm.

In some embodiments, the first groove 613 is set corresponding to the display area of the electronic device 7, the width of the first groove 613 is greater than or equal to the width of the display area of the electronic device 7, and the length of the first groove 613 is greater than or equal to that of the electronic device 7. The length of the device's display area. The projection position of the first groove 613 coincides with the display area of the electronic device, that is, the first groove 613 is directly above the display area of the electronic device, and its size is larger than or equal to the display area. The size of the first groove 613 is equal to that of the display area, and the fingerprint recognition sensor 63 is arranged corresponding to the display area, which saves cost. The first groove 613 is larger than the display area, and more fingerprint identification sensors can be arranged to expand the detection range.

In some embodiments, please refer to FIG. 9 , which is a schematic diagram of a third structure of the cover assembly provided by the embodiment of the present application. The second cover plate 62 is provided with a second groove 623 corresponding to the side of the first cover plate 61. The first cover plate 61 includes a first base plate 615, and the first base plate 615 protrudes outwards corresponding to the second groove 623 to form a second groove 623. The groove 623 matches the first protrusion 616 .

The first cover 61 includes a first substrate 615 and a first protruding portion 616, and the second cover 62 includes a second substrate 625 and a second groove 623; the fingerprint recognition sensor 63 may be disposed on the bottom surface of the second groove 623, It can also be disposed on the outer surface of the first protruding portion 616, so that the second cover plate 62 only needs to have a thickness of the bottom part of the second groove 623 less than or equal to 0.15 mm. The thickness of other positions of the second base plate 625 of the second cover plate 62 can be greater than 0.15 mm, such as the edge position. When the electronic device collides or falls, the edge position is more likely to be collided, and the thickness of the second cover plate 62 at the edge position is strengthened. The display panel 1 can be better protected without affecting the fingerprint identification effect, and at the same time, the fixing effect of the first cover plate 61 and the second cover plate 62 is better.

In some embodiments, please refer to FIG. 10 . FIG. 10 is a schematic diagram of a fourth structure of a cover assembly provided in an embodiment of the present application. The second cover 62 includes a second base 625 , a side of the second base 625 corresponding to the first cover 61 is provided with a second groove 623 , and the first cover 61 is disposed in the second groove 623 .

The second cover 62 includes a second substrate 625 and a second groove 623; the fingerprint recognition sensor 63 can be arranged on the bottom surface of the second groove 623, or can be arranged on the outer surface of the first cover 61, so that the second The second cover plate 62 only needs the thickness of the bottom part of the second groove 623 to be less than or equal to 0.15 mm. The first cover plate 61 is arranged in the second groove 623, and the thickness of other positions of the second substrate 625 of the second cover plate 62 can be greater than 0.15 mm, such as the edge position. When the electronic device is bumped or dropped, the edge position is easier. Being bumped, the thickness of the edge of the second cover 62 is strengthened, which can better protect the display panel without affecting the fingerprint recognition effect, and at the same time, the fixing effect of the first cover 61 and the second cover 62 is better.

In some embodiments, the second groove 623 is set corresponding to the display area of the electronic device, the width of the second groove 623 is greater than or equal to the width of the display area of the electronic device, and the length of the second groove 623 is greater than or equal to that of the electronic device. Displays the length of the region. The projection position of the second groove 623 coincides with the display area of the electronic device, that is, the second groove 623 is directly above the display area of the electronic device, and its size is larger than or equal to the display area. The size of the second groove 623 is equal to that of the display area, and the fingerprint identification sensor 63 is arranged corresponding to the display area, which saves cost. The second groove 623 is larger than the display area, and more fingerprint recognition sensors can be arranged to expand the detection range.

It should be noted that the first cover plate 61 can be made according to the normal thickness, and the first cover plate 61 and the second cover plate 62 are laminated by a full bonding process, and then the bonded cover plate assembly 60 and the display module In order to achieve in-screen fingerprint recognition. It is also possible to bond the first cover 61 to the display module 11 first, and then arrange the fingerprint identification sensor 63 on the first outer surface 612 of the first cover 61 or on the second inner surface 621 of the second cover 62 , and then attach the second cover plate 62 to the first cover plate 61 .

In some embodiments, please refer to FIG. 11 and FIG. 12 , FIG. 11 is a schematic structural diagram of a fingerprint recognition sensor provided by an embodiment of the present application, and FIG. 12 is a schematic structural diagram of a fingerprint cover plate for identifying fingerprints provided by an embodiment of this application. The fingerprint recognition sensor 63 includes a plurality of sensor units 630, and the plurality of sensor units 630 includes a plurality of first sensor units 631 arranged in a first direction, and a plurality of second sensor units 632 arranged in a second direction; The first sensor unit 631 and the plurality of second sensor units 632 are respectively connected to the control chip through transmission lines.

For example, the second inner surface 621 of the second cover 62 utilizes the ITO/SiNx/ITO structure to form an electric field 68. When a finger touches, the corium 66 and the outermost epidermis 67 contact the second cover 62, changing the electric field 68. , so as to identify the fingerprint information. Specifically, a layer of first sensor units 631 in the horizontal direction such as ITO electrodes may be provided on the second inner surface 621 of the second cover plate 62, and then an insulating layer may be provided, and then a layer of second sensor units in the vertical direction may be provided. 632 is like an ITO electrode, forming an electric field. The first sensor unit 631 and the second sensor unit 632 cover the entire second cover plate 62, and the transmission lines (TX lines) connected to the second sensor unit 632 are vertically distributed and connected to the control chip, and the receiving lines connected to the first sensor unit 631 The left and right sides of the line (RX line), that is, the horizontal lines, are connected to the control chip, thereby forming an electric field to identify the protrusions and grooves of the fingerprint of the finger, and realize fingerprint unlocking. Among them, ITO (Indium Tin Oxides) is indium tin oxide, and SiNx is silicon nitride. It should be noted that the fingerprint identification sensor 63 may also adopt other structures. The fingerprint recognition sensor 63 is a transparent fingerprint recognition sensor.

The first sensor unit 631 and the second sensor unit 632 can be reversed. For example, a layer of second sensor unit 632 in a horizontal direction is provided on the second inner surface 621 of the second cover plate 62 first, and then a layer of insulating layer is provided. A first sensor unit 631 in a vertical direction. In addition, a layer of second sensor units 632 in the vertical direction may be disposed on the second inner surface 621 of the second cover plate 62 , followed by an insulating layer, and then a layer of first sensor units 631 in the horizontal direction. It is also possible that the first sensor unit 631 and the second sensor unit 632 are on the same layer, but an insulating layer is provided between the wires connecting the two groups of sensor units.

A fingerprint is a unique and invariable biological characteristic, and it is composed of a series of protrusions 64 and grooves 65 on the skin surface of the fingertips. The composition details of these protrusions 64 and grooves 65 determine the uniqueness of the fingerprint pattern. The display panel mainly includes a plurality of touch driving lines (TX) 66 and a plurality of touch sensing lines (RX) 67. The touch driving lines 66 can send low-voltage high-frequency signals, and the touch sensing lines 67 receive the low-voltage high-frequency signals, thereby A stable capacitance is formed between the touch driving line 66 and the touch sensing line 67 . When the fingertip presses the display panel, the capacitance between the touch driving line 66 and the touch sensing line 67 will decrease, and because the distances between the protrusion 64 and the groove 65 are different from the touch driving line 66 and the touch sensing line 67, resulting in Different capacitance changes occur between the touch driving line 66 and the touch sensing line 67 . Therefore, the display panel can determine protrusions and grooves according to different capacitance changes, and redraw the fingerprint image to realize fingerprint collection.

Wherein, the area of the sensor unit 630 is in the range of 20 microns*20 microns to 50 microns*50 microns. Of course, the size of the sensor unit 630 can also be 10 microns*10 microns, 30 microns*30 microns, 40 microns*40 microns, 80 microns*80 microns or 100 microns*100 microns. The size of the sensor unit 630 can be square, or rectangular, rectangular, trapezoidal, circular, elliptical, regular hexagonal and irregular.

Wherein, the distance between two adjacent sensor units is 5 microns-10 microns. The distance between two adjacent sensor units can also be 3 microns, 6 microns, 8 microns or 15 microns.

The fingerprint identification sensor 63 includes a plurality of first sensor units 631 and a plurality of second sensor units 632, the plurality of first sensor units 631 are divided into multiple rows of first sensor units in the horizontal direction, and the multiple rows of first sensor units are divided into two groups A1 And group A2, two groups are arranged at intervals, that is, group A1 includes multiple rows of first sensor units, group A2 also includes multiple rows of first sensor units, and one row of first sensor units in group A1 is vertically adjacent to other rows of first sensor units For group A2. Similarly, a plurality of second sensor units 632 are divided into longitudinal multiple columns of second sensor units, and multiple columns of second sensor units are divided into two groups B1 and B2, and the two groups are arranged at intervals, that is, group B1 includes multiple columns of second sensors The unit, group B2 also includes multiple columns of second sensor units, and the second sensor units in one column of group B1 are laterally adjacent to the other columns of second sensor units of group B2. When no fingerprint recognition event occurs, control the work of one group in group A1 and group A2, and/or control the work of one group in group B1 and group B2. After the fingerprint recognition event occurs, all sensor units are activated to save power. It should be noted that the plurality of first sensor units 631 can be divided into multiple groups, similarly, the plurality of second sensor units 632 can also be divided into multiple groups, and when no fingerprint recognition event occurs, control the multiple groups of first sensor units One or more groups are working, and/or one or more groups of the multiple groups of second sensor units are working, that is, some sensor units are in working state, and some sensor units are in non-working state.

In some embodiments, the cover plate assembly 60 includes a second cover plate 62 covering the display area of the electronic device. A fingerprint recognition sensor 63 is provided on the side of the second cover plate 62 close to the display area of the electronic device. The thickness of the second cover plate 62 is less than Or equal to 0.15mm. The cover assembly 60 only includes a second cover 62, and the thickness of the second cover 62 is less than or equal to 0.15 mm. The display module 11 of the electronic device may or may not include the first cover 61 , and the first cover 61 is the first cover in the above-mentioned embodiment, and details will not be repeated here. The second cover plate 62 is provided separately, and can be attached to the display module 11 directly when needed, or can be attached to the display module 11 after being attached to the first cover plate 61 .

The second cover plate includes a second substrate and a protective layer, and the fingerprint recognition sensor is arranged between the second substrate and the protective layer. Set a protective layer to protect the fingerprint recognition sensor. It should be noted that both the fingerprint recognition sensor and the protective layer may be transparent.

Those skilled in the art can understand that the structure of the electronic device 7 shown in FIG. 1 and FIG. 2 does not constitute a limitation to the electronic device 7 . Electronic device 7 may include more or fewer components than shown, or combine certain components, or have a different arrangement of components. The electronic device 7 may also include a processor, a memory, a Bluetooth module, etc., which will not be repeated here.

The array substrate, self-capacitance touch display panel and electronic equipment provided by the embodiments of the present application are described above in detail. In this paper, specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used To help understand this application. At the same time, for those skilled in the art, based on the idea of this application, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be construed as limiting the application.

Claims (17)

1. a kind of cover plate assembly, applied to electronic equipment, it is characterised in that the cover plate assembly includes being covered in the electricity successively The first cover plate and the second cover plate of sub- device display area, are provided with fingerprint recognition between first cover plate and second cover plate Sensor, the thickness of second cover plate are less than the thickness of first cover plate.

2. cover plate group according to claim 1 is applied to electronic equipment, it is characterised in that second cover sheet thickness is less than Or equal to 0.15 millimeter.

3. cover plate assembly according to claim 1, it is characterised in that first cover plate and the second cover plate size phase Deng.

4. cover plate assembly according to claim 1, it is characterised in that first cover plate is included close to the electronic equipment First inner surface of display, and the first outer surface corresponding with first inner surface；

Second cover plate includes the second inner surface close to first cover plate, and corresponding with second inner surface the Two outer surfaces；

The fingerprint Identification sensor is arranged on second inner surface or on first outer surface.

5. cover plate assembly according to claim 1, it is characterised in that first cover plate corresponds to the second cover plate side Provided with the first groove, second cover plate is arranged in first groove.

6. cover plate assembly according to claim 1, it is characterised in that first cover plate corresponds to the second cover plate side Provided with the first groove, second cover plate includes second substrate, and the second substrate corresponds to the first groove outwardly convex shape Into the second protuberance with first matching grooves.

7. the cover plate assembly according to claim 5 or 6, it is characterised in that first groove corresponds to the electronic equipment Viewing area set, the width of first groove is more than or equal to the width of the viewing area of the electronic equipment, described The length of first groove is more than or equal to the length of the viewing area of the electronic equipment.

8. cover plate assembly according to claim 1, it is characterised in that second cover plate corresponds to the first cover plate side Provided with the second groove, first cover plate includes first substrate, and the first substrate corresponds to the second groove outwardly convex shape Into the first protuberance with second matching grooves.

9. cover plate assembly according to claim 1, it is characterised in that second cover plate includes second substrate, and described Two substrates correspond to the first cover plate side and are provided with the second groove, and first cover plate is arranged in second groove.

10. cover plate assembly according to claim 8 or claim 9, it is characterised in that second groove corresponds to the electronic equipment Viewing area set, the width of second groove is more than or equal to the width of the viewing area of the electronic equipment, described The length of second groove is more than or equal to the length of the viewing area of the electronic equipment.

11. cover plate assembly according to claim 1, it is characterised in that the fingerprint Identification sensor includes multiple sensings Device unit, the multiple sensor unit includes setting multiple first sensor units in a first direction, and is arranged on Multiple second sensor units in second direction；

The multiple first sensor unit connects control chip by transmission line respectively with the multiple second sensor unit.

12. cover plate assembly according to claim 11, it is characterised in that be spaced between the two neighboring sensor unit Distance is 5 microns -10 microns.

13. cover plate assembly according to claim 11, it is characterised in that the area of the sensor unit is 400 squares - 2500 square microns of micron.

14. a kind of cover plate assembly, applied to electronic equipment, it is characterised in that the cover plate assembly includes being covered in the electronics Second cover plate of device display area, second cover plate pass close to electronic equipment viewing area side provided with fingerprint recognition Sensor, second cover sheet thickness are less than or equal to 0.15 millimeter.

15. cover plate assembly according to claim 14, it is characterised in that second cover plate includes second substrate and protection Layer, the fingerprint Identification sensor are arranged between the second substrate and protective layer.

16. a kind of display panel, it is characterised in that including display module and cover plate assembly, the cover plate assembly is claim 1 To the cover plate assembly described in 15 any one.

17. a kind of electronic equipment, it is characterised in that including housing and the display panel being arranged in the housing, the display Panel is display panel as claimed in claim 16.