CN114518813B - Display screens and electronic devices - Google Patents
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- CN114518813B CN114518813B CN202210160426.8A CN202210160426A CN114518813B CN 114518813 B CN114518813 B CN 114518813B CN 202210160426 A CN202210160426 A CN 202210160426A CN 114518813 B CN114518813 B CN 114518813B
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; 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
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
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Abstract
本申请实施例提供了一种显示屏及电子设备，显示屏包括：叠层设置的显示面板、圆偏光片和盖板，显示面板背离圆偏光片的一侧设有指纹模组；从显示面板朝向指纹模组射出的反射光为椭圆偏振光，反射光为显示面板朝向圆偏光片的方向发出并由盖板上的被测物反射后的光；指纹模组包括指纹传感器，指纹传感器朝向显示面板的表面上设有过滤层，过滤层可使椭圆偏振光中的第一偏振方向的光透过，以射至指纹传感器上，且可过滤部分显示面板朝向指纹模组发射的光，第一偏振方向为椭圆偏振光长轴方向。本实施例可以过滤显示面板存在的部分漏光，以减少漏光对指纹模组识别指纹纹路信息时造成的干扰。
The embodiment of the present application provides a display screen and an electronic device, wherein the display screen includes: a stacked display panel, a circular polarizer, and a cover plate, wherein a fingerprint module is provided on the side of the display panel facing away from the circular polarizer; the reflected light emitted from the display panel toward the fingerprint module is elliptically polarized light, and the reflected light is light emitted from the display panel toward the circular polarizer and reflected by the object to be measured on the cover plate; the fingerprint module includes a fingerprint sensor, and a filter layer is provided on the surface of the fingerprint sensor facing the display panel, and the filter layer allows light in a first polarization direction of the elliptically polarized light to pass through so as to be projected onto the fingerprint sensor, and can filter part of the light emitted from the display panel toward the fingerprint module, and the first polarization direction is the major axis direction of the elliptically polarized light. This embodiment can filter part of the light leakage existing in the display panel to reduce the interference caused by the light leakage to the fingerprint module in recognizing the fingerprint pattern information.
Description
Technical Field
The application relates to the technical field of electronic equipment, in particular to a display screen and electronic equipment.
Background
With the development of electronic devices, full-face screens have become a trend, and applications of display screens with fingerprint recognition on electronic devices are becoming popular.
Existing display screens typically conceal an ultra-fine pitch camera below the display screen. When the light emitting side of the display screen substrate emits emergent light, the display screen substrate has light leakage, namely, the part of light emitted by the backlight side of the display screen substrate faces the fingerprint module. Light leakage causes interference when fingerprint module discernment fingerprint line information, has reduced holistic SNR and influence display quality to fingerprint module's recognition accuracy has been reduced.
Disclosure of Invention
The embodiment of the application provides a display screen and electronic equipment, which are used for solving the technical problems of low image signal-to-noise ratio and low fingerprint module identification accuracy caused by light leakage of the display screen in the related technology.
In order to solve the technical problems, the application is realized as follows:
In a first aspect, the embodiment of the application provides a display screen, which comprises a display panel, a circular polarizer and a touch cover plate, wherein the display panel, the circular polarizer and the touch cover plate are arranged in a stacked mode, and a fingerprint module is arranged on one side, away from the circular polarizer, of the display panel;
the reflected light emitted from the display panel towards the fingerprint module is elliptical polarized light, and the reflected light is emitted from the display panel towards the direction of the circular polarizer and reflected by the tested object on the cover plate;
the fingerprint module comprises a fingerprint sensor, a filter layer is arranged on the surface of the fingerprint sensor facing the display panel, the filter layer can enable light in a first polarization direction in elliptical polarized light to penetrate so as to be emitted onto the fingerprint sensor, and part of unpolarized light emitted by the fingerprint module, which is directed by the display panel, can be filtered, and the first polarization direction is the long axis direction of the elliptical polarized light.
In a second aspect, an embodiment of the present application provides an electronic device, including the display screen described above.
In the embodiment of the application, the filter layer is arranged on the surface of the fingerprint sensor of the fingerprint module, facing the display panel, and can transmit light in the first polarization direction of the elliptical polarized light to the fingerprint sensor, wherein the first polarization direction is the long axis direction of the elliptical polarized light, and because the light in the long axis direction of the elliptical polarized light occupies heavier weight, more light in reflected light can be irradiated to the fingerprint sensor to meet fingerprint identification.
Drawings
FIG. 1 is a schematic view of a display screen according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating polarization transformation of reflected light in a display screen according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a filter layer and a fingerprint sensor in a first view angle in a fingerprint module according to an embodiment of the present application;
FIG. 4 shows an enlarged partial schematic view at A in FIG. 3;
fig. 5 shows a schematic three-dimensional structure of fig. 4.
Reference numerals:
10, a display panel, 11, a base glass, 12, a luminescent layer, 121, a luminescent pixel, 13, a packaging glass, 20, a circular polarizer, 21, a quarter wave plate, 22, a linear polarizer, 30, a touch cover plate, 40, a fingerprint module, 41, a filter layer, 411, a rectangular hole, 42, a fingerprint sensor, 421, 43, a lens assembly, 44, a substrate and 50, a measured object.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are 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 be within the scope of the application.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In the embodiment of the application, referring to fig. 1 to 5, a display screen is provided, which specifically includes a display panel 10, a circular polarizer 20 and a touch cover 30 that are stacked, where a fingerprint module is disposed on a side of the display panel 10 facing away from the circular polarizer 20, reflected light emitted from the display panel 10 toward the fingerprint module 40 is elliptically polarized light, the reflected light is light emitted from the display panel 10 toward the circular polarizer 20 and reflected by a measured object 50 on the cover 30, the fingerprint module 40 includes a fingerprint sensor 42, a filter layer 41 is disposed on a surface of the fingerprint sensor 42 facing the display panel 10, the filter layer 41 can transmit light in a first polarization direction of the elliptically polarized light to the fingerprint sensor 42, and can filter light emitted from a portion of the display panel 10 facing the fingerprint module, where the first polarization direction is an elliptically polarized light direction. Therefore, the embodiment can filter part of light leakage existing in the display panel, so that interference caused by the light leakage to fingerprint module identifying fingerprint line information is reduced, the overall signal-to-noise ratio is improved, the display quality is improved, and the fingerprint identification accuracy is improved.
Specifically, as shown in fig. 1, the display screen may specifically include a display panel 10, a circular polarizer 20, and a touch cover 30 that are stacked, that is, the display panel 10, the circular polarizer 20, and the touch cover 30 are sequentially arranged from bottom to top. The side of the display panel 10 facing away from the circular polarizer 20 is provided with a fingerprint module 40, that is, the fingerprint module 40 is located at the lower side of the display panel 10. The surface of the touch cover 30 facing away from the circular polarizer 20 is used for touching the object 50 to be measured, that is, the upper surface of the touch cover 30 is used for touching the object 50 to be measured. In practice, the object 50 may be a finger or other objects, and the object 50 will be described below as a finger.
Specifically, the display panel 10 may emit light, which is called emergent light, and the emergent light is sequentially emitted to the finger through the circular polarizer 20 and the touch cover 30, and then reflected by the finger to form light carrying fingerprint information, and the light at this time is called reflected light, and the reflected light is sequentially emitted to the fingerprint sensor 42 of the fingerprint module through the touch cover 30, the circular polarizer 20 and the display panel 10, so that the fingerprint sensor 42 detects the light carrying fingerprint information. As shown in fig. 2, the reflected light becomes circularly polarized light after being polarized by the circularly polarizer 20 (the process is denoted by E1 in fig. 2), and becomes elliptically polarized light after being polarized by the display panel 10 (the process is denoted by E2 in fig. 2).
Specifically, as shown in fig. 1, a filter layer 41 is disposed on the surface of the fingerprint sensor 42 facing the display panel 10, that is, the upper surface of the fingerprint sensor 42 is provided with the filter layer 41, and the filter layer 41 is used for transmitting light in a first polarization direction in elliptical polarized light to the fingerprint sensor 42, so that the fingerprint sensor 42 detects light carrying fingerprint information, wherein the first polarization direction is a long axis direction of the elliptical polarized light, and because the light in the long axis direction of the elliptical polarized light occupies a relatively heavy weight, more light in reflected light can be irradiated onto the fingerprint sensor 42 to satisfy fingerprint recognition, and meanwhile, the filter layer 41 can also filter out light emitted by the display panel 10 facing the fingerprint module 40, that is, a part of light leakage existing in the display panel 10, so as to reduce the transmittance of the light leakage, and improve the overall signal to noise ratio to improve the display quality, thereby improving the accuracy of fingerprint recognition.
In the embodiment of the present application, as shown in fig. 1, the fingerprint sensor 42 includes a plurality of receiving pixels 421, the filter layer 41 is made of a non-light-transmitting material, the filter layer 41 is provided with a light-transmitting structure at a position opposite to each receiving pixel, the light-transmitting structure includes a plurality of rectangular holes 411 arranged in an array, and the first polarization direction is parallel to the long sides of the rectangular holes 411, so that the light in the first polarization direction in the elliptical polarized light is transmitted through the rectangular holes 411.
Specifically, the fingerprint sensor 42 includes a plurality of receiving pixels 421, and the receiving pixels 421 can convert optical signals into electrical signals to image. As shown in fig. 3 to 5, the filter layer 41 is provided with a light-transmitting structure at a position opposite to each receiving pixel 421, the light-transmitting structure including a plurality of rectangular holes 411, the plurality of rectangular holes 411 being arranged in an array. Wherein the array comprises M rows and N columns, the M rows comprising a first predetermined number of rectangular apertures 411 and the N columns comprising a second predetermined number of rectangular apertures 411. It should be noted that, each dotted line frame in the filter layer in fig. 3 corresponds to the corresponding receiving pixel 421, only one light-transmitting structure is shown in fig. 3, and in practice, one light-transmitting structure is disposed in each dotted line frame.
Since the filter layer 41 is made of a non-light-transmitting material, that is, if the reflected light irradiates the region (non-rectangular hole 411) of the filter layer 41 where the material is present, the reflected light cannot irradiate the fingerprint sensor 42 through the filter layer 41, and if the reflected light irradiates the rectangular hole 411, the reflected light can irradiate the fingerprint sensor 42 through the rectangular hole 411.
Specifically, as shown in fig. 4, since the first polarization direction is parallel to the long side of the rectangular hole 411, that is, the long-axis direction (E direction) of the elliptical polarized light is parallel to the long side of the rectangular hole 411, the light of the first polarization direction in the elliptical polarized light can pass through the rectangular hole 411 to be incident on the fingerprint sensor 42, so that the fingerprint sensor 42 can more accurately detect the light carrying the fingerprint information.
Since the light (simply referred to as light leakage) emitted from the display panel 10 towards the fingerprint module 40 is unpolarized light, a part of the light may be irradiated to the area with the material on the filter layer 41 and reflected back, a part of the light may be irradiated to the rectangular hole 411, but a part of the light may be irradiated to the wall of the rectangular hole 411 and refracted and/or reflected back, and only another part of the light may pass through the rectangular hole 411.
In the embodiment of the application, the elliptical polarized light further comprises light with a second polarization direction, wherein the second polarization direction is the short axis direction of the elliptical polarized light, and the second polarization direction is parallel to the short side of the rectangular hole, so that the light with the second polarization direction in the elliptical polarized light is transmitted through the rectangular hole to be emitted to the fingerprint sensor 42.
Since the major axis of the ellipse is perpendicular to the minor axis, the long side of the rectangle is perpendicular to the short side. When the first polarization direction is parallel to the long side of the rectangular hole 411, the second polarization direction is parallel to the short side of the rectangular hole 411, that is, the short axis direction of the elliptical polarized light is parallel to the short side of the rectangular hole 411, so that the light in the elliptical polarized light and the light in the second polarization direction can be emitted to the fingerprint sensor 42 through the rectangular hole 411, and the transmittance of the elliptical polarized light through the rectangular hole is further improved, so that the fingerprint sensor 42 can detect the light carrying the fingerprint information more accurately.
Specifically, the material of the filter layer 41 may be silicon or aluminum, so that the filter layer 41 can be better combined with the fingerprint sensor 42. Of course, the specific material of the filter layer 41 may be other materials such as metal, which is not limited in this embodiment, and may be specifically selected according to practical situations.
In the embodiment of the present application, as shown in fig. 4 and 5, a plurality of rectangular holes 411 are arranged in a matrix.
Specifically, the number of rows and columns of the matrix is the same, and each row and column includes the same number of rectangular holes 411 as the number of rows/columns. In this way, the rectangular holes 411 may be uniformly distributed so that light of the first polarization direction among the elliptically polarized light may uniformly penetrate the filter layer 41 to further improve the accuracy of the fingerprint sensor 42 to recognize fingerprint information.
In order to reduce the difficulty in manufacturing the filter layer 41, the number of rows and columns of the matrix may be two, each row and each column respectively include two rectangular holes 411, or as shown in fig. 4 and 5, the number of rows and columns of the matrix may be three, each row and each column respectively include three rectangular holes 411, and in addition, as shown in fig. 4 and 5, the ratio of the first length to the second length ranges from [1.2,2], wherein the first length is the length of the long side of the rectangular hole 411, and the second length is the length of the short side of the rectangular hole 411. Of course, the specific arrangement of the matrix, that is, the specific arrangement of the plurality of rectangular holes 411, and the specific ratio of the first length to the second length, may not be limited to this, and may be set according to practical situations.
In addition, in order to increase the area of the light-transmitting region of the filter layer 41 to increase the transmittance of the filter layer 41, thereby increasing the accuracy of fingerprint information recognition by the fingerprint sensor 42, the ratio of the area of each light-transmitting structure to the area of the corresponding receiving pixel 421 is 0.8 or more, that is, the area of one light-transmitting structure corresponding to one receiving pixel 421 is 80% or more of the area of the receiving pixel 421.
In the embodiment of the application, as shown in fig. 1, the display panel 10 comprises a substrate glass 11, a light-emitting layer 12 and a packaging glass 13 which are arranged in a laminated manner, the circular polarizer 20 comprises a quarter-wave plate 21 and a linear polarizer 22, the quarter-wave plate 21 is arranged on the packaging glass 13, the linear polarizer 22 is arranged on the quarter-wave plate 21, the touch cover plate 30 is arranged on the linear polarizer 22, the fingerprint module is arranged on one side, away from the light-emitting layer 12, of the substrate glass 11, and a preset distance exists between the fingerprint module and the surface, away from the light-emitting layer 12, of the substrate glass 11.
Specifically, as shown in fig. 1, the display panel 10 includes a base glass 11, a light-emitting layer 12, and a package glass 13, which are stacked, wherein the light-emitting layer 12 is composed of a plurality of light-emitting pixels 121, and the light-emitting pixels 121 serve as light sources of the display panel 10 to emit light upward.
Specifically, as shown in fig. 1, in the downward-upward direction, the display screen is a fingerprint module, a base glass 11, a light emitting layer 12, a package glass 13, a quarter wave plate 21, a linear polarizer 22, and a touch cover plate 30 in this order. In order to make more light emitted upward by the light-emitting pixels 121 irradiate the encapsulation glass 13, a certain distance is provided between the light-emitting layer 12 and the surface (the lower surface shown in fig. 1) of the encapsulation glass 13 facing the base glass 11, and a specific value of the distance may be set according to actual requirements, which may not be limited in this embodiment. A predetermined distance exists between the fingerprint module and the surface (the lower surface shown in fig. 1) of the base glass 11 facing away from the light emitting layer 12, so that more reflected light can be irradiated onto the fingerprint sensor 42 of the fingerprint module, thereby improving the accuracy of fingerprint information recognition by the fingerprint sensor 42.
It is noted that the quarter wave plate (1/4 wave plate) is a birefringent single crystal wave plate with a certain thickness, also called a retarder, and when light with a certain wavelength is perpendicularly incident to the 1/4 wave plate, the 1/4 wave plate can generate a lambda/4 optical path difference (i.e. pi/2 phase difference) between the outgoing ordinary light (o light) and the extraordinary light (e light). When the linearly polarized light vertically enters the 1/4 wave plate, the included angle between the polarization direction of the linearly polarized light and the optical axis direction of the 1/4 wave plate is theta, when theta=45°, the emergent light is circularly polarized light, when theta+.45°, the emergent light is elliptically polarized light, wherein the linearly polarized light can be decomposed into o light and e light with the vibration direction perpendicular to the incident plane, namely, perpendicular to the optical axis, and the vibration direction of the e light is parallel to the incident plane, namely, parallel to the optical axis.
In the present embodiment, the reflected light becomes linearly polarized light when passing through the linear polarizer, and becomes circularly polarized light when passing through the quarter wave plate 21. Since there is a gap between the encapsulation glass 13 and the base glass 11, when circularly polarized light is irradiated to the base glass 11 through the encapsulation glass 13, ordinary light (o light) and extraordinary light (e light) incident into the circularly polarized light are reflected, and since the o light and the e light have reflection losses and reflection moments are different, the circularly polarized light becomes elliptically polarized light after being transmitted through the base glass 11.
In practice, the fingerprint module further includes a lens assembly 43 and a substrate 44, where the lens assembly 43, the fingerprint sensor 42 and the substrate 44 are sequentially disposed in a top-down direction. The light with the first polarization direction in the elliptical polarized light is firstly irradiated onto the lens assembly 43, and the lens assembly 43 is used for imaging the emitted light with fingerprint information to the fingerprint sensor 42 for fingerprint detection and/or fingerprint identification.
It should be noted that the upper and lower directions described in the drawings are only illustrated in the directions, and do not represent actual orientations.
The display screen provided by the embodiment of the application has the following advantages:
In the embodiment of the application, the display screen comprises a display panel 10, a circular polarizer 20 and a touch cover plate 30 which are arranged in a stacked manner, wherein a fingerprint module is arranged on one side, facing away from the circular polarizer 20, of the display panel 10, reflected light emitted from the display panel 10 towards the fingerprint module 40 is elliptical polarized light, the reflected light is emitted from the display panel 10 towards the circular polarizer 20 and is reflected by a measured object 50 on the cover plate 30, the fingerprint module 40 comprises a fingerprint sensor 42, a filter layer 41 is arranged on the surface, facing the display panel 10, of the fingerprint sensor 42, the filter layer 41 can enable light in a first polarization direction in the elliptical polarized light to penetrate so as to be emitted onto the fingerprint sensor 42, and light emitted from part of the display panel 10 towards the fingerprint module can be filtered, and the first polarization direction is the elliptical polarized light long axis direction. Therefore, the embodiment can filter part of light leakage existing in the display panel, so that interference caused by the light leakage to fingerprint module identifying fingerprint line information is reduced, the overall signal-to-noise ratio is improved, the display quality is improved, and the fingerprint identification accuracy is improved.
The embodiment of the application also provides electronic equipment, which particularly comprises the display screen.
Specifically, in the embodiment of the application, the electronic device includes, but is not limited to, a mobile phone, a tablet computer, a notebook computer, a palm computer, a vehicle-mounted terminal, a wearable device, a pedometer and the like. The electronic equipment comprises the display screen.
The reflected light reflected by the finger may carry not only fingerprint information but also vital sign information such as pulse, blood oxygen, and rest. That is, the fingerprint sensor of the embodiment can detect other biological sign information such as pulse, blood oxygen, and rest in addition to fingerprint detection, so as to perform other functions such as living body detection and human health detection, and enrich the functions of the electronic device.
The advantages of the electronic device are the same as those of the display screen, and will not be described here again.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
While alternative embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following appended claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the scope of the embodiments of the application.
Finally, it is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal. Without further limitation, an element defined by the phrase "comprising one of the elements" does not exclude that additional identical elements are present in an article or terminal device comprising the element. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
While the foregoing has been described in some detail by way of illustration of the principles and embodiments of the application, and while in accordance with the principles and implementations of the application, those skilled in the art will readily recognize that the application is not limited thereto.
Claims (9)
1. The display screen is characterized by comprising a display panel, a circular polarizer and a touch cover plate which are arranged in a laminated mode, wherein a fingerprint module is arranged on one side, away from the circular polarizer, of the display panel;
The reflected light emitted from the display panel towards the fingerprint module is elliptical polarized light, and the reflected light is emitted from the display panel towards the circular polarizer and reflected by the tested object on the cover plate;
The fingerprint module comprises a fingerprint sensor, a filter layer is arranged on the surface of the fingerprint sensor facing the display panel, the filter layer can enable light in a first polarization direction in the elliptical polarized light to penetrate so as to be emitted onto the fingerprint sensor, and part of light emitted by the display panel facing the fingerprint module can be filtered, wherein the first polarization direction is the long axis direction of the elliptical polarized light;
the fingerprint sensor includes a plurality of receiving pixels;
the filter layer is made of a non-light-transmitting material, a light-transmitting structure is arranged at the position, opposite to each receiving pixel, of the filter layer, and the light-transmitting structure comprises a plurality of rectangular holes which are arranged in an array;
The first polarization direction is parallel to the long side of the rectangular hole, so that light with the first polarization direction in the elliptical polarized light is transmitted through the rectangular hole.
2. The display screen of claim 1, wherein the elliptically polarized light further comprises light of a second polarization direction, the second polarization direction being a short axis direction of the elliptically polarized light;
The second polarization direction is parallel to the short side of the rectangular hole, so that light with the second polarization direction in the elliptical polarized light passes through the rectangular hole to be emitted to the fingerprint sensor.
3. The display screen of claim 1, wherein a plurality of the rectangular holes are arranged in a matrix.
4. A display screen according to claim 3, wherein the matrix has two rows and columns, each row and column comprising two rectangular holes, respectively, or
The number of rows and columns of the matrix are three, and each row and each column respectively comprise three rectangular holes.
5. The display screen of claim 1 or 4, wherein a ratio of a first length to a second length ranges from [1.2,2], the first length being a length of a long side of the rectangular aperture, the second length being a length of a short side of the rectangular aperture.
6. The display screen of claim 1, wherein a ratio of an area of each of the light-transmitting structures to an area of the corresponding receiving pixel is 0.8 or more.
7. The display screen of claim 1, wherein the filter layer is made of silicon or aluminum.
8. The display screen of claim 1, wherein the display panel comprises a base glass, a light emitting layer, and a package glass arranged in a stack, and the circular polarizer comprises a quarter-wave plate and a linear polarizer;
The fingerprint module is arranged on one side of the base glass, which is away from the light-emitting layer, and a preset distance exists between the fingerprint module and the surface of the base glass, which is away from the light-emitting layer.
9. An electronic device comprising a display screen as claimed in any one of claims 1 to 8.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160426.8A CN114518813B (en) | 2022-02-21 | 2022-02-21 | Display screens and electronic devices |
| PCT/CN2023/076456 WO2023155831A1 (en) | 2022-02-21 | 2023-02-16 | Display screen and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160426.8A CN114518813B (en) | 2022-02-21 | 2022-02-21 | Display screens and electronic devices |
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| CN114518813A CN114518813A (en) | 2022-05-20 |
| CN114518813B true CN114518813B (en) | 2025-01-14 |
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| CN202210160426.8A Active CN114518813B (en) | 2022-02-21 | 2022-02-21 | Display screens and electronic devices |
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| WO (1) | WO2023155831A1 (en) |
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| CN218896210U (en) * | 2022-01-14 | 2023-04-21 | 北京极豪科技有限公司 | Polarizer, display device, fingerprint identification device, photoelectric sensor, fingerprint module, fingerprint imaging structure and display screen |
| CN114518813B (en) * | 2022-02-21 | 2025-01-14 | 维沃移动通信有限公司 | Display screens and electronic devices |
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| WO2021146955A1 (en) * | 2020-01-21 | 2021-07-29 | 深圳市汇顶科技股份有限公司 | Optical fingerprint detection apparatus, touch screen and electronic device |
| CN113569601A (en) * | 2020-04-28 | 2021-10-29 | 华为技术有限公司 | Under-screen fingerprint recognition system and electronic equipment |
| CN114518813B (en) * | 2022-02-21 | 2025-01-14 | 维沃移动通信有限公司 | Display screens and electronic devices |
-
2022
- 2022-02-21 CN CN202210160426.8A patent/CN114518813B/en active Active
-
2023
- 2023-02-16 WO PCT/CN2023/076456 patent/WO2023155831A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107358216A (en) * | 2017-07-20 | 2017-11-17 | 京东方科技集团股份有限公司 | A kind of fingerprint collecting module, display device and fingerprint identification method |
| CN110730968A (en) * | 2019-05-06 | 2020-01-24 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114518813A (en) | 2022-05-20 |
| WO2023155831A1 (en) | 2023-08-24 |
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