CN107819910B - Cover plate assembly, display panel and electronic equipment - Google Patents
Cover plate assembly, display panel and electronic equipment Download PDFInfo
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- CN107819910B CN107819910B CN201711279768.7A CN201711279768A CN107819910B CN 107819910 B CN107819910 B CN 107819910B CN 201711279768 A CN201711279768 A CN 201711279768A CN 107819910 B CN107819910 B CN 107819910B
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- cover plate
- groove
- cover
- electronic equipment
- display area
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/1613—Constructional details or arrangements for portable computers
- G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
- G06F1/1637—Details related to the display arrangement, including those related to the mounting of the display in the housing
- G06F1/1643—Details related to the display arrangement, including those related to the mounting of the display in the housing the display being associated to a digitizer, e.g. laptops that can be used as penpads
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
- G06F21/31—User authentication
- G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1306—Sensors therefor non-optical, e.g. ultrasonic or capacitive sensing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
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- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- Computer Hardware Design (AREA)
- Signal Processing (AREA)
- Computer Security & Cryptography (AREA)
- Software Systems (AREA)
- Multimedia (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Image Input (AREA)
Abstract
The application discloses a cover plate assembly, a display panel and electronic equipment, wherein the cover plate assembly comprises a first cover plate and a second cover plate which are sequentially covered on a display area of the electronic equipment, a fingerprint identification sensor is arranged between the first cover plate and the second cover plate, and the thickness of the second cover plate is smaller than that of the first cover plate. The first apron can play the effect of protection display module assembly, and second apron thickness is little, and the touch-control electric field of fingerprint identification sensor pierces through the second apron that thickness is little more easily, and the discernment fingerprint is more convenient, more accurate.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to a cover plate assembly, a display panel and electronic equipment.
Background
The fingerprint identification of the existing electronic equipment utilizes a special fingerprint identification module, for example, the fingerprint identification module is arranged on the rear shell of the smart phone and on the back of the screen of the smart phone, so that the use is inconvenient. Or the fingerprint identification module is arranged in a non-display area of the display screen on the front side of the smart phone, and a groove or an opening is required to be formed corresponding to the fingerprint identification module, but the integrity of the display screen is destroyed.
Disclosure of Invention
The embodiment of the application provides a cover plate assembly, a display panel and electronic equipment, which can not damage the integrity of a display screen.
In a first aspect, an embodiment of the present application provides a cover plate assembly, which is applied to an electronic device, where the cover plate assembly includes a first cover plate and a second cover plate that sequentially cover a display area of the electronic device, a fingerprint identification sensor is disposed between the first cover plate and the second cover plate, and a thickness of the second cover plate is smaller than a thickness 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 a cover assembly as described above.
In a third aspect, an embodiment of the present application provides an electronic device, where the electronic device includes a housing and a display panel disposed in the housing, and the display panel is a display panel as described above.
The cover plate assembly provided by the embodiment of the application comprises a first cover plate and a second cover plate which are sequentially covered on a display area of electronic equipment, wherein a fingerprint identification sensor is arranged between the first cover plate and the second cover plate, and the thickness of the second cover plate is smaller than that of the first cover plate. The first cover plate and the second cover plate are arranged corresponding to the display area of the electronic equipment, the fingerprint identification sensor is arranged between the first cover plate and the second cover plate, the thickness of the second cover plate is smaller than that of the first cover plate, the first cover plate can play a role in protecting the display module, the thickness of the second cover plate is small, the touch electric field of the fingerprint identification sensor can penetrate through the second cover plate with small thickness more easily, fingerprint identification is more convenient and accurate, holes or grooves are not needed, and the integrity of the display screen is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is another schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a self-contained touch display panel according to an embodiment of the application.
Fig. 4 is a cross-sectional view of the self-contained touch display panel shown in fig. 3 in A-A direction.
Fig. 5 is a schematic structural diagram of a cover plate assembly and a display module according to an embodiment of the application.
Fig. 6 is another schematic structural diagram of a cover assembly and a display module according to an embodiment of the application.
Fig. 7 is a schematic diagram of a first structure of a cover assembly according to an embodiment of the present application.
Fig. 8 is a schematic diagram of a second structure of a cover assembly according to an embodiment of the present application.
Fig. 9 is a schematic diagram of a third structure of a cover assembly according to an embodiment of the present application.
Fig. 10 is a schematic diagram of a fourth structure of a cover assembly according to an embodiment of the present application.
Fig. 11 is a schematic structural diagram of a fingerprint identification sensor according to an embodiment of the present application.
Fig. 12 is a schematic structural diagram of fingerprint cover plate for fingerprint identification according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to fall within the scope of the application.
In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more of the described features. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically connected, electrically connected or can be communicated with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The embodiment of the application provides a cover plate assembly, a display panel and electronic equipment. Each of which will be described in detail below.
In the present embodiment, description will be made from the viewpoint of a display panel which may be provided in an electronic device such as a mobile phone, a personal computer, a tablet computer, a palm top computer (Personal Digital Assistant, PDA), or the like.
Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device 7 comprises a housing 8, a display panel 1, a printed circuit board 3, a battery 4.
The casing 8 may include a cover plate 6, a middle frame 2, and a rear cover 5, where the cover plate 6, the middle frame 2, and the rear cover 5 are combined to form the casing 8, and the casing 8 has a closed space formed by the cover plate 6, the middle frame 2, and the rear cover 5 to accommodate the self-contained touch display panel 1, the printed circuit board 3, the battery 4, and other devices. In some embodiments, the cover plate 6 is arranged on the middle frame 2 in a covering manner, the rear cover 5 is arranged on the middle frame 2 in a covering manner, the cover plate 6 and the rear cover 5 are positioned on opposite sides of the middle frame 2, the cover plate 6 and the rear cover 5 are arranged oppositely, and a closed space of the shell 8 is positioned 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 according to the embodiment of the present application is not limited thereto, and other manners may be adopted, for example: the housing 8 may comprise a plastic part and a metal part. For another example: the housing 8 may be a plastic housing. 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 a material such as sapphire.
It should be noted that, the structure of the housing according to the embodiment of the present application is not limited to this, 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, where the cover plate 6 and the middle frame 2 are fixed to form a closed space for accommodating devices such as the self-contained touch display panel 1, the printed circuit board 3, the battery 4, and the like.
The printed circuit board 3 is mounted in the housing 8, the printed circuit board 3 may be a motherboard of the electronic device 7, and functional components such as an antenna, a motor, a microphone, a camera, a light sensor, a receiver, and a processor may be integrated on the printed circuit board 3.
In some embodiments, the printed circuit board 3 is secured within the housing 8. Specifically, the printed circuit board 3 may be screwed to the middle frame 2 by a screw, or may be snapped to the middle frame 2 by a snap-fit manner. It should be noted that the manner in which the printed circuit board 3 is specifically fixed to the middle frame 2 according to the embodiment of the present application is not limited thereto, and may be other manners, such as a manner of being fixed together by a buckle and a screw.
Wherein the battery 4 is mounted in a housing 8, the battery 4 being electrically connected to the printed circuit board 3 for providing power to the electronic device 7. The housing 8 may serve as a battery cover for the battery 4. The case 8 covers the battery 4 to protect the battery 4, and in particular, the rear cover covers the battery 4 to protect the battery 4, reducing damage to the battery 4 due to collision, drop, or the like of the electronic device 7.
Wherein the housing 8 is used to form the outer contour of the terminal 1. The housing 8 may be a metal housing, such as an aluminum alloy housing 8. It should be noted that the material of the housing 8 according to the embodiment of the present application is not limited thereto, and other manners may be adopted, for example: the housing 8 may be a ceramic middle frame or a glass middle frame. For another example: the housing 8 may be a plastic middle frame. Also, for example: the housing 8 may be a metal and plastic co-operating structure, and may be formed by injection molding plastic parts onto a metal sheet.
In the embodiment of the application, the display panel is exemplified by a self-contained touch display panel. The self-capacitance touch display panel 1 is installed in the housing 8, and meanwhile, the self-capacitance touch display panel 1 is electrically connected to the printed circuit board 3 to form a display surface of the electronic device 7. The self-contained touch display panel 1 includes a display area and a non-display area. The display area may be used to display a screen of the electronic device 7 or for touch manipulation or the like by a user. The top area of the non-display area is provided with an opening for sound and light transmission, and the bottom of the non-display area can be provided with functional components such as a fingerprint module, a touch key and the like. The cover plate 6 is mounted on the self-capacitive touch display panel 1 to cover the self-capacitive touch display panel 1, and forms a display area and a non-display area which are the same as those of the self-capacitive touch display panel 1, specifically, the display area and the non-display area of the self-capacitive touch display panel 1 can be referred to.
Note that, the structure of the self-contained touch display panel 1 is not limited thereto. For example, the display screen may be a full-screen or a heterogeneous screen, and in particular, referring to fig. 2, fig. 2 is another schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device in fig. 2 differs from the electronic device in fig. 1 in that: the non-display area is directly formed on the self-contained touch display panel 1, for example, the non-display area of the self-contained touch display panel 1 is set to be a transparent structure so that the optical signal passes through, or a structure such as an opening or a notch for light transmission is directly formed in the non-display area of the self-contained touch display panel 20, so that a front camera, a photoelectric sensor and the like can be arranged at the position of the non-display area so that the front camera can take a picture and the photoelectric sensor can detect.
In some embodiments, the display panel may be a liquid crystal display (Liquid Crystal Display) or an Organic Light-Emitting Diode (OLED) display. When the display panel is a liquid crystal display screen, the display panel can comprise a backlight plate, a lower polarizer, an array substrate, a liquid crystal layer, a color film substrate, an upper polarizer and other structures which are sequentially stacked. When the display panel is an organic light emitting diode display screen, the display panel can comprise a base layer, an anode, an organic layer, a conductive layer, an emission layer, a cathode and other structures which are sequentially stacked. In some embodiments, the display is a transparent display having transparent characteristics for signals to pass through.
Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of a self-capacitive touch display panel according to an embodiment of the application, and fig. 4 is a cross-sectional view of the self-capacitive touch display panel shown in fig. 3 in A-A direction. The self-contained touch display panel 1 comprises a color film substrate 20, an array substrate 10 and a liquid crystal layer 30, wherein the array substrate 10 is arranged opposite to the color film substrate 20, and the liquid crystal layer 30 is arranged between the color film substrate 20 and the array substrate 10. The array substrate 10 may include a multiplexed common electrode, where the common electrode may be divided into a plurality of touch electrodes, and in a touch period, the touch electrodes are connected to touch signals to implement touch, and in a display period, all the touch electrodes are connected to the common electrode signals to implement display; the touch control module and the display mode can be separately driven in a time-sharing driving mode.
In some embodiments, referring to fig. 5 and fig. 6, fig. 5 is a schematic structural diagram of a cover plate assembly and a display module provided by an embodiment of the present application, and fig. 6 is another schematic structural diagram of the cover plate assembly and the display module provided by an embodiment of the present application. The cover plate 6 may be replaced by a cover plate assembly 60, where 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 first cover plate 61 is attached to the display module 11 of the display panel 1, a fingerprint identification sensor 63 is disposed between the first cover plate 61 and the second cover plate 62, and the fingerprint identification sensor 63 may 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 penetration effect of the touch electric field of the fingerprint identification sensor 63 is, and the more accurate the fingerprint identification is. Wherein the first cover plate 61 may be the cover plate 6 in the above-described embodiment. A second, thinner cover plate 62 is provided over the conventionally provided cover plates, and a fingerprint sensor 63 is provided between the two cover plates. The first cover plate 61 can play the effect of protecting the display module 11, the second cover plate 62 is small in thickness, the touch electric field of the fingerprint identification sensor 63 penetrates through the second cover plate 62 with small thickness more easily, fingerprint identification is more convenient and accurate, holes or grooves are not needed, and the integrity of the display screen is improved. And the fingerprint recognition sensor 63 is provided in the display area, the duty ratio of the display area of the display panel 1 is increased. The display module 11 includes a thin film transistor (TFT, thin FilmTransistor) 111 and a Color Filter (CF) 112.
In some embodiments, the second cover plate thickness 62 is less than or equal to 0.15 millimeters. Of course, the thickness of the second cover plate 62 may be 0.1 mm to 0.15 mm. The smaller the thickness of the second cover plate 62 is, the better the penetration effect of the touch electric field of the fingerprint identification sensor 63 is, and the more accurate the fingerprint identification is. The thickness of the second cover plate 62 cannot be too small, otherwise, the strength of the second cover plate 62 is insufficient.
The material of the first cover plate 61 and/or the second cover plate 62 may be transparent and hard material such as glass, plastic, resin, sapphire, etc. The first cover plate 61 and the second cover plate 62 may be made of the same material, and only have different thicknesses. The first cover plate 61 and the second cover plate 62 may be made of different materials, and the second cover plate 62 may be made of a material having a higher hardness because of a 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 a full lamination technology, are perfectly laminated together, have higher lamination degree, are not easy to separate, and are not easy to deviate. The first cover plate 61 may cover the display area and the non-display area of the entire display panel 1. The first cover 61 may also cover the entire upper surface of the electronic device 7, where 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 proximate to the display area of the electronic device 7, and a first outer surface 612 corresponding to the first inner surface 611; i.e. the first inner surface 611 faces the interior of the electronic device and the first outer surface 612 faces the second cover plate 62. The second cover plate 62 includes a second inner surface 621 adjacent to the first cover plate 61, and a second outer surface 622 corresponding to the second inner surface 621; i.e. the second inner surface 621 is close to the first cover plate 61 and the second outer surface 622 is directed towards the outside of the electronic device. The fingerprint recognition sensor 62 is disposed on the second inner surface 621. The fingerprint sensor 62 may be disposed on the second inner surface 621 of the second cover plate 62 with little modification to the existing cover plate. The fingerprint identification sensor 63 may also be disposed on the first outer surface 612 of the first cover 61, and may be implemented by continuing to process on the basis of the existing cover.
In some embodiments, referring to fig. 7, fig. 7 is a schematic diagram of a first structure of a cover assembly according to an embodiment of the application. The first cover plate 61 is provided with a first groove 613 corresponding to the second cover plate 62, and the second cover plate 62 is disposed in the first groove 613.
The size of the second cover plate 62 is matched with that of the first groove 613, and the second cover plate 62 is just clamped into the first groove 613, so that the second cover plate 62 can be well fixed. The fingerprint recognition sensor 63 may be provided on the bottom surface of the first groove 613, or may be provided on the surface of the second cover plate 62 facing the first cover plate 61 side.
In some embodiments, referring to fig. 8, fig. 8 is a schematic diagram of a second structure of a cover assembly according to an embodiment of the application. The first cover plate 61 is provided with a first groove 613 corresponding to the second cover plate 62, the second cover plate 62 includes a second substrate 625, and the second substrate 625 protrudes outwards corresponding to the first groove 613 to form a second protruding portion 626 matching with the first groove 613.
The second cover plate 62 includes a second substrate 625 and a second protruding portion 626, the first cover plate 61 includes a first substrate 615 and a first groove 613, the first substrate 615 and the second substrate 625 are equal in size, the first groove 613 is matched with the second protruding portion 626, and the fingerprint identification sensor 63 may be disposed on a bottom surface of the first groove 613 or may be disposed on an 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 are not easily separated. The sum of the thicknesses of the second substrate 625 and the second protrusion 626 of the second cover plate 62 is less than or equal to 0.15 mm.
In some embodiments, the first groove 613 is disposed 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 the length of the display area of the electronic device. The first groove 613 coincides with the projection position of the display area of the electronic device, that is, the first groove 613 is directly above the display area of the electronic device and has a size greater than or equal to the display area. The first groove 613 is equal to the display area in size, and the fingerprint identification sensor 63 is arranged corresponding to the display area, so that cost is saved. The first groove 613 is larger than the display area, and more fingerprint recognition sensors can be arranged, so that the detection range is enlarged.
In some embodiments, referring to fig. 9, fig. 9 is a schematic diagram of a third structure of a cover assembly according to an embodiment of the application. The second cover plate 62 is provided with a second groove 623 on one side corresponding to the first cover plate 61, the first cover plate 61 includes a first substrate 615, and the first substrate 615 protrudes outwards corresponding to the second groove 623 to form a first protrusion 616 matching with the second groove 623.
The first cover plate 61 includes a first base plate 615 and a first protrusion 616, and the second cover plate 62 includes a second base plate 625 and a second groove 623; the fingerprint recognition sensor 63 may be disposed on the bottom surface of the second groove 623 or may be disposed on the outer surface of the first protrusion 616, so that the second cover 62 may be disposed only in a thickness of less than or equal to 0.15 mm at the bottom portion of the second groove 623. The thickness of the second substrate 625 of the second cover plate 62 at other positions can be greater than 0.15 mm, such as an edge position, when the electronic device collides, falls, etc., the edge position is more likely to collide, the thickness of the second cover plate 62 at the edge position is reinforced, the display panel 1 can be better protected, the fingerprint identification effect is not affected, and meanwhile, the fixing effect of the first cover plate 61 and the second cover plate 62 is better.
In some embodiments, referring to fig. 10, fig. 10 is a schematic diagram illustrating a fourth structure of a cover assembly according to an embodiment of the application. The second cover plate 62 includes a second substrate 625, a second groove 623 is disposed on a side of the second substrate 625 corresponding to the first cover plate 61, and the first cover plate 61 is disposed in the second groove 623.
The second cover plate 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 or may be disposed on the outer surface of the first cover plate 61, so that the second cover plate 62 may be disposed only at a bottom portion of the second groove 623 having a thickness of 0.15 mm or less. The first cover plate 61 is disposed in the second groove 623, and the thickness of the second substrate 625 of the second cover plate 62 at other positions may be greater than 0.15 mm, such as an edge position, where the edge position is more likely to be collided when the electronic device collides, falls, etc., so as to reinforce the thickness of the edge position of the second cover plate 62, thereby better protecting the display panel, and not affecting the fingerprint recognition effect, and simultaneously, the fixing effect of the first cover plate 61 and the second cover plate 62 is better.
In some embodiments, the second groove 623 is disposed 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 the length of the display area of the electronic device. The second groove 623 coincides with the display area projection position of the electronic device, i.e. the second groove 623 is directly above the display area of the electronic device and has a size greater than or equal to the display area. The second groove 623 is equal to the display area in size, and the fingerprint identification sensor 63 is arranged corresponding to the display area, so that the cost is saved. The second groove 623 is larger than the display area, and more fingerprint recognition sensors can be provided, expanding the detection range.
It should be noted that, the first cover plate 61 may be manufactured according to a normal thickness, the first cover plate 61 and the second cover plate 62 are bonded by a full bonding process, and then the bonded cover plate assembly 60 is bonded with the display module, so as to realize fingerprint identification in the screen. The first cover 61 may be attached to the display module 11, then the fingerprint sensor 63 may be disposed on the first outer surface 612 of the first cover 61 or the second inner surface 621 of the second cover 62, and then the second cover 62 may be attached to the first cover 61.
In some embodiments, please refer to fig. 11 and fig. 12, fig. 11 is a schematic structural diagram of a fingerprint identification sensor provided in an embodiment of the present application, and fig. 12 is a schematic structural diagram of a fingerprint identification cover provided in an embodiment of the present application. The fingerprint recognition sensor 63 includes a plurality of sensor units 630, and the plurality of sensor units 630 include a plurality of first sensor units 631 disposed in a first direction and a plurality of second sensor units 632 disposed in a second direction; the plurality of first sensor units 631 and the plurality of second sensor units 632 are connected to the control chip through transmission lines, respectively.
For example, the second inner surface 621 of the second cover plate 62 forms an electric field 68 using an ITO/SiNx/ITO structure, and when a finger touches, the dermis layer 66 and the outermost epidermis layer 67 contact the second cover plate 62, changing the electric field 68, thereby recognizing fingerprint information. Specifically, a first sensor unit 631 such as an ITO electrode in a horizontal direction may be disposed on the second inner surface 621 of the second cover plate 62, then an insulating layer may be disposed, and then a second sensor unit 632 such as an ITO electrode in a vertical direction may be disposed to form an electric field. The first sensor unit 631 and the second sensor unit 632 are plated with the whole second cover plate 62, the transmitting lines (TX lines) connected with the second sensor unit 632 are vertically distributed and connected to the control chip, the left and right double-sided wires, i.e., the horizontal wires, of the receiving lines (RX lines) connected with the first sensor unit 631 are connected to the control chip, so that electric field recognition finger fingerprint protrusions and grooves are formed, and fingerprint unlocking is realized. Wherein ITO (Indium Tin Oxides) is indium tin oxide and SiNx is silicon nitride. It should be noted that other configurations of the fingerprint recognition sensor 63 are also possible. The fingerprint recognition sensor 63 is a transparent fingerprint recognition sensor.
The first sensor unit 631 and the second sensor unit 632 may be exchanged, for example, a layer of the second sensor unit 632 in the horizontal direction is disposed on the second inner surface 621 of the second cover 62, then an insulating layer is disposed, and then a layer of the first sensor unit 631 in the vertical direction is disposed. In addition, a layer of the second sensor unit 632 in the vertical direction may be disposed on the second inner surface 621 of the second cover plate 62, then an insulating layer may be disposed, and then a layer of the first sensor unit 631 in the horizontal direction may be disposed. The first sensor unit 631 and the second sensor unit 632 may be provided on the same layer, but an insulating layer may be provided between wirings connecting the two sets of sensor units.
A fingerprint is a unique and invariant biometric feature that consists of a series of protrusions 64 and grooves 65 on the finger-end skin surface, the details of the composition of these protrusions 64 and grooves 65 determining 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, and the touch driving lines 66 may emit a low voltage high frequency signal, and the touch sensing lines 67 receive the low voltage high frequency signal, thereby forming a stable capacitance between the touch driving lines 66 and the touch sensing lines 67. When the finger tip presses the display panel, the capacitance between the touch driving line 66 and the touch sensing line 67 is reduced, and different capacitance changes occur between the touch driving line 66 and the touch sensing line 67 due to the different distances of the protrusion 64 and the groove 65 from the touch driving line 66 and the touch sensing line 67. Therefore, the display panel can judge the bulges and the grooves according to the different capacitance changes, and the fingerprint image is drawn again, so that fingerprint collection is realized.
Wherein the area of the sensor unit 630 is in the range of 20 microns by 20 microns to 50 microns by 50 microns. Of course, the sensor cell 630 may also be 10 microns by 10 microns, 30 microns by 30 microns, 40 microns by 40 microns, 80 microns by 80 microns, or 100 microns by 100 microns in size. The sensor unit 630 may be square in size, rectangular, trapezoidal, circular, oval, regular hexagonal, irregular, etc.
Wherein the spacing distance between two adjacent sensor units is 5 micrometers-10 micrometers. The adjacent two sensor units may also be 3 microns, 6 microns, 8 microns, 15 microns, etc.
The fingerprint recognition 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 a plurality of horizontal rows of first sensor units, the plurality of rows of first sensor units are divided into two groups A1 and A2, the two groups are arranged at intervals, that is, the group A1 includes the plurality of rows of first sensor units, the group A2 also includes the plurality of rows of first sensor units, and the other rows of first sensor units longitudinally adjacent to one row of first sensor units of the group A1 are the group A2. Similarly, the plurality of second sensor cells 632 are divided into a plurality of longitudinal columns of second sensor cells, and the plurality of columns of second sensor cells are divided into two groups B1 and B2, which are arranged at intervals, i.e., the group B1 includes the plurality of columns of second sensor cells, the group B2 also includes the plurality of columns of second sensor cells, and the other columns of second sensor cells laterally adjacent to one column of second sensor cells of the group B1 are the group B2. When no fingerprint identification event occurs, one group of the A1 group and the A2 group is controlled to work, and/or one group of the B1 group and the B2 group is controlled to work, all sensor units are started after the fingerprint identification event occurs, and electric energy is saved. It should be noted that the plurality of first sensor units 631 may be divided into a plurality of groups, and likewise, the plurality of second sensor units 632 may be divided into a plurality of groups, and when no fingerprint recognition event occurs, one or more of the plurality of first sensor units are controlled to operate, and/or one or more of the plurality of second sensor units are controlled to operate, that is, a part of the sensor units are in an operating state and a part of the sensor units are in a non-operating state.
In some embodiments, the cover assembly 60 includes a second cover 62 covering the display area of the electronic device, where a fingerprint sensor 63 is disposed on a side of the second cover 62 close to the display area of the electronic device, and the thickness of the second cover 62 is less than or equal to 0.15 mm. The cover assembly 60 includes only one second cover 62, the second cover 62 having a thickness of less than or equal to 0.15 millimeters. 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 embodiment, which is not described herein. The second cover plate 62 is separately arranged, and can be directly attached to the display module 11 when in use, or attached to the first cover plate 61 and then attached to the display module 11.
The second cover plate comprises a second base plate and a protective layer, and the fingerprint identification sensor is arranged between the second base plate and the protective layer. And a protective layer is arranged to protect the fingerprint identification sensor. It should be noted that both the fingerprint recognition sensor and the protective layer may be transparent.
Those skilled in the art will appreciate that the configuration of the electronic device 7 shown in fig. 1 and 2 does not constitute a limitation of the electronic device 7. The electronic device 7 may comprise more or fewer components than shown, or may combine certain components, or may have a different arrangement of components. The electronic device 7 may also include a processor, a memory, a bluetooth module, etc., which are not described in detail herein.
The array substrate, the self-capacitance touch display panel and the electronic device provided by the embodiment of the application are described in detail, and specific examples are applied to explain the principles and the implementation modes of the application, and the description of the above embodiments is only used for helping to understand the application. Meanwhile, as those skilled in the art will have variations in the specific embodiments and application scope in light of the ideas of the present application, the present description should not be construed as limiting the present application.
Claims (15)
1. The cover plate assembly is applied to electronic equipment and is characterized by comprising a first cover plate and a second cover plate which are sequentially covered on a display area of the electronic equipment, wherein a fingerprint identification sensor is arranged between the first cover plate and the second cover plate, and the fingerprint identification sensor is a transparent sensor; the thickness of the second cover plate is smaller than that of the first cover plate; the first cover plate is provided with a first groove corresponding to the second cover plate, the first groove is arranged corresponding to the display area of the electronic equipment, the width of the first groove is larger than or equal to the width of the display area of the electronic equipment, and the length of the first groove is larger than or equal to the length of the display area of the electronic equipment;
or, the second cover plate is provided with a second groove corresponding to one side of the first cover plate, the second groove is arranged corresponding to the display area of the electronic equipment, the width of the second groove is larger than or equal to the width of the display area of the electronic equipment, and the length of the second groove is larger than or equal to the length of the display area of the electronic equipment.
2. The cover plate assembly of claim 1, wherein the second cover plate thickness is less than or equal to 0.15 millimeters.
3. The cover assembly of claim 1, wherein the first cover plate and the second cover plate are equal in size.
4. The cover assembly of claim 1, wherein the first cover includes a first inner surface displayed proximate the electronic device and a first outer surface corresponding to the first inner surface;
the second cover plate comprises a second inner surface close to the first cover plate and a second outer surface corresponding to the second inner surface;
the fingerprint recognition sensor is disposed on the second inner surface or the first outer surface.
5. The cover plate assembly of claim 1, wherein the second cover plate is disposed within the first recess.
6. The cover plate assembly of claim 1, wherein the second cover plate comprises a second base plate that protrudes outwardly corresponding to the first recess to form a second protrusion that mates with the first recess.
7. The cover plate assembly of claim 1, wherein the first cover plate comprises a first base plate that protrudes outwardly corresponding to the second recess to form a first protrusion that mates with the second recess.
8. The cover plate assembly of claim 1, wherein the second cover plate comprises a second substrate, a second groove is formed in one side of the second substrate corresponding to the first cover plate, and the first cover plate is arranged in the second groove.
9. The cover assembly of claim 1, wherein the fingerprint recognition sensor comprises a plurality of sensor units including a plurality of first sensor units disposed in a first direction and a plurality of second sensor units disposed in a second direction;
the plurality of first sensor units and the plurality of second sensor units are respectively connected with the control chip through transmission lines.
10. The cover plate assembly of claim 9 wherein two adjacent sensor units are spaced apart a distance of 5 microns to 10 microns.
11. The cover plate assembly of claim 9 wherein the sensor unit has an area of 400 square micrometers to 2500 square micrometers.
12. The cover plate assembly is applied to electronic equipment and is characterized by comprising a second cover plate which covers a display area of the electronic equipment, wherein a fingerprint identification sensor is arranged on one side, close to the display area of the electronic equipment, of the second cover plate, and the fingerprint identification sensor is a transparent sensor; the thickness of the second cover plate is less than or equal to 0.15 millimeter; the second cover plate is provided with a second groove, the fingerprint identification sensor is arranged in the second groove, the second groove is arranged corresponding to the display area of the electronic equipment, the width of the second groove is larger than or equal to the width of the display area of the electronic equipment, and the length of the second groove is larger than or equal to the length of the display area of the electronic equipment.
13. The cover assembly of claim 12, wherein the second cover comprises a second substrate and a protective layer, the fingerprint identification sensor being disposed between the second substrate and the protective layer.
14. A display panel comprising a display module and a cover assembly, the cover assembly being as claimed in any one of claims 1 to 11.
15. An electronic device comprising a housing and a display panel disposed in the housing, the display panel being the display panel of claim 14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711279768.7A CN107819910B (en) | 2017-12-06 | 2017-12-06 | Cover plate assembly, display panel and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711279768.7A CN107819910B (en) | 2017-12-06 | 2017-12-06 | Cover plate assembly, display panel and electronic equipment |
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| CN107819910A CN107819910A (en) | 2018-03-20 |
| CN107819910B true CN107819910B (en) | 2023-10-13 |
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| WO2019144591A1 (en) * | 2018-01-29 | 2019-08-01 | 华为技术有限公司 | Transparent cover plate, display screen, and terminal |
| CN108846313A (en) * | 2018-05-03 | 2018-11-20 | Oppo广东移动通信有限公司 | Electronic device and its fingerprint identification method |
| CN108881546A (en) * | 2018-07-03 | 2018-11-23 | Oppo（重庆）智能科技有限公司 | The display component of electronic device and electronic device with it |
| CN110738074B (en) * | 2018-07-18 | 2024-02-27 | 上海箩箕技术有限公司 | Optical fingerprint sensor module and forming method thereof |
| CN109462713A (en) * | 2018-10-26 | 2019-03-12 | 敦南科技（无锡）有限公司 | A kind of ultrathin type image sensor module |
| CN109829411B (en) * | 2019-01-24 | 2022-02-11 | 江西沃格光电股份有限公司 | Display panel and display device with fingerprint identification function |
| CN112131910A (en) * | 2019-06-25 | 2020-12-25 | Oppo广东移动通信有限公司 | Display module device, electronic apparatus, and method of assembling display module device |
| CN110276307A (en) * | 2019-06-25 | 2019-09-24 | Oppo广东移动通信有限公司 | The assemble method of display component device, electronic equipment and display component device |
| CN112131911A (en) * | 2019-06-25 | 2020-12-25 | Oppo广东移动通信有限公司 | Display module device, electronic apparatus, and method of assembling display module device |
| CN112131913A (en) * | 2019-06-25 | 2020-12-25 | Oppo广东移动通信有限公司 | Display module device, electronic apparatus, and method of assembling display module device |
| CN110275638A (en) * | 2019-06-25 | 2019-09-24 | Oppo广东移动通信有限公司 | The control method of electronic equipment and electronic equipment |
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