CN114518813A - Display screen and electronic equipment - Google Patents
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- CN114518813A CN114518813A CN202210160426.8A CN202210160426A CN114518813A CN 114518813 A CN114518813 A CN 114518813A CN 202210160426 A CN202210160426 A CN 202210160426A CN 114518813 A CN114518813 A CN 114518813A
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- 229910052710 silicon Inorganic materials 0.000 claims description 2
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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
- G06F3/0412—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
The embodiment of the application provides a display screen and electronic equipment, and the display screen includes: the display panel, the circular polarizer and the cover plate are arranged in a laminated 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 elliptically polarized light, and the reflected light is emitted from the display panel towards the circular polarizer and is reflected by the measured object on the cover plate; the fingerprint module includes fingerprint sensor, and fingerprint sensor is equipped with the filter layer on the surface towards display panel, and the filter layer can make the light transmission of the first polarization direction in the oval circular polarized light to on penetrating to fingerprint sensor, and the light that can filter partial display panel towards the fingerprint module transmission, first polarization direction is oval circular polarized light major axis direction. This embodiment can filter the partial light leak that display panel exists to reduce the interference that causes when the light leak discerns fingerprint line information to the fingerprint module.
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-screen displays have become a trend, and display screens with fingerprint recognition are increasingly popular in electronic devices.
The existing display screen usually hides an ultra-micro distance 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, a part emitted towards the fingerprint module in the light emitted by the backlight side of the display screen substrate. The light leak causes the interference when fingerprint pattern information is discerned to the fingerprint module, has reduced holistic SNR and has influenced display quality to the identification accuracy of fingerprint module has been reduced.
Disclosure of Invention
The embodiment of the application provides a display screen and electronic equipment to there is the image signal to noise ratio that leads to in the display screen of solving among the correlation technique and hangs down and the low technical problem of fingerprint module group identification accuracy.
In order to solve the technical problem, the present application is implemented as follows:
in a first aspect, an embodiment of the present application provides a display screen, including: the display panel comprises 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 of the display panel, which is far away from the circular polarizer;
reflected light emitted from the display panel towards the fingerprint module is elliptically polarized light, and the reflected light is light emitted from the display panel towards the circular polarizer and reflected by the measured object on the cover plate;
The fingerprint module includes fingerprint sensor, fingerprint sensor orientation be equipped with the filter layer on display panel's the surface, the filter layer can make the light of the first polarization direction in the oval circular polarized light sees through, in order to penetrate to on the fingerprint sensor, but the filtering part display panel orientation the non-polarized light that the fingerprint module sent, first polarization direction is oval circular polarized light major axis direction.
In a second aspect, an embodiment of the present application provides an electronic device, which includes the display screen.
In this application embodiment, set up the filter layer on the surface of fingerprint sensor orientation display panel through at the fingerprint module, the filter layer can make the light transmission of the first polarization direction in the oval circular polarized light to on penetrating to the fingerprint sensor, first polarization direction is oval circular polarized light major axis direction, because the light of its major axis direction accounts for than heavier in the oval circular polarized light, like this, can make in the reverberation have more light irradiation to satisfy fingerprint sensor on; meanwhile, the filter layer can filter part of the display panel towards the light emitted by the fingerprint module, so that the part of light leakage existing in the display panel can be filtered, the interference caused when the light leakage is used for identifying fingerprint line information of the fingerprint module is reduced, the integral signal-to-noise ratio is improved, the display quality is improved, and the accuracy of fingerprint identification is improved.
Drawings
Fig. 1 is a schematic view of a display screen provided in an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating polarization conversion of reflected light in a display screen according to an embodiment of the present disclosure;
fig. 3 is a schematic view of a filter layer and a fingerprint sensor in a fingerprint module according to an embodiment of the disclosure at a first viewing angle;
FIG. 4 shows a schematic enlarged view of a portion of FIG. 3 at A;
fig. 5 shows the three-dimensional structure of fig. 4.
Reference numerals:
10: a display panel; 11: a base glass; 12: a light emitting layer; 121: a light emitting pixel; 13: 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: receiving a pixel; 43: a lens assembly; 44: a substrate; 50: and (5) measuring the object.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present 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 an embodiment of the present application, a display screen is provided, and with reference to fig. 1 to 5, the display screen may specifically include: the display panel comprises a display panel 10, a circular polarizer 20 and a touch cover plate 30 which are arranged in a laminated manner, wherein a fingerprint module is arranged on one side of the display panel 10, which is far away from the circular polarizer 20; the reflected light emitted from the display panel 10 toward the fingerprint module 40 is elliptically polarized light, and the reflected light is light emitted from the display panel 10 toward the circular polarizer 20 and reflected by the object 50 to be measured on the cover plate 30; fingerprint module 40 includes fingerprint sensor 42, and fingerprint sensor 42 is equipped with filter layer 41 on the surface towards display panel 10, and filter layer 41 can make the light transmission of the first polarization direction in the oval circular polarized light to penetrate to fingerprint sensor 42 is last, and filterable part display panel 10 is towards the light of fingerprint module transmission, and first polarization direction is oval circular polarized light major axis direction. It is thus clear that this embodiment can filter the partial light leak that display panel exists to reduce the light leak and to the interference that causes when fingerprint pattern module discernment fingerprint line information, improve whole SNR in order to improve display quality, thereby improve fingerprint identification's accuracy.
Specifically, as shown in fig. 1, the display screen may specifically include: the display panel 10, the circular polarizer 20, and the touch cover 30 are stacked, that is, in the direction from the bottom to the top, the display panel 10, the circular polarizer 20, and the touch cover 30 are in this order. One side of the display panel 10 departing 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 of the object to be measured 50, that is, the upper surface of the touch cover 30 is used for touching of the object to be measured 50. The object 50 may be a finger or other object to be measured, and the object 50 is taken as a finger for illustration.
Specifically, the display panel 10 may emit light, which is referred to as emergent light, the emergent light is sequentially emitted to a finger through the circular polarizer 20 and the touch cover 30, and then reflected by the finger to form light carrying fingerprint information, the light at this time is referred to as 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 the fingerprint information. As shown in fig. 2, the reflected light is polarized by the circular polarizer 20 (the process is denoted by E1 in fig. 2) and becomes circularly polarized light, and is polarized by the display panel 10 (the process is denoted by E2 in fig. 2) and becomes elliptically polarized light.
Specifically, as shown in fig. 1, a filter layer 41 is disposed on a surface of the fingerprint sensor 42 facing the display panel 10, that is, a filter layer 41 is disposed on an upper surface of the fingerprint sensor 42, and the filter layer 41 is configured to transmit light in a first polarization direction of elliptically polarized light to the fingerprint sensor 42, so that the fingerprint sensor 42 detects light carrying fingerprint information, where the first polarization direction is a long axis direction of the elliptically polarized light, and since light in the long axis direction of the elliptically polarized light occupies a relatively heavy proportion, more light in reflected light can be irradiated onto the fingerprint sensor 42 to satisfy fingerprint identification; simultaneously, filter layer 41 can also filter display panel 10 towards the light of fingerprint module 40 transmission, also promptly, filters the part in the light leak that display panel 10 exists to reduce the transmissivity of light leak, promote whole SNR in order to improve display quality, thereby improve fingerprint identification's accuracy.
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, and the filter layer 41 is provided with a light-transmitting structure at a position opposite to each receiving pixel, wherein the light-transmitting structure comprises a plurality of rectangular holes 411 arranged in an array; the first polarization direction is parallel to the long side of the rectangular aperture 411, so that light of the first polarization direction among the elliptically polarized light is transmitted through the rectangular aperture 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 be imaged. 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 includes a plurality of rectangular holes 411, and the plurality of rectangular holes 411 are 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 dashed frame in the filter layer in fig. 3 corresponds to a corresponding receiving pixel 421, only one light-transmitting structure is shown in fig. 3, and in practice, each dashed frame is provided with one light-transmitting structure.
Since the filter layer 41 is made of a non-light-transmitting material, that is, if the reflected light is irradiated to the area where the filter layer 41 has a material (non-rectangular hole 411), it is not irradiated to the fingerprint sensor 42 through the filter layer 41, and if the reflected light is irradiated to the rectangular hole 411, it is irradiated to 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 (illustrated as the direction E) of the elliptically polarized light is parallel to the long side of the rectangular hole 411, the light of the first polarization direction of the elliptically polarized light can pass through the rectangular hole 411 to be incident on the fingerprint sensor 42, so that the fingerprint sensor 42 can detect the light carrying the fingerprint information more accurately.
Because the light emitted by the display panel 10 toward the fingerprint module 40 (called light leakage for short) is unpolarized light, a part of the light may irradiate the filter layer 41 with a material region and be reflected back, and a part of the light may irradiate the rectangular hole 411, but a part of the light may be refracted and/or reflected back on the wall of the rectangular hole 411, and only another part of the light may pass through the rectangular hole 411.
In the embodiment of the present application, the elliptically polarized light further includes light with a second polarization direction, where the second polarization direction is 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 of the second polarization direction among the elliptically polarized light is transmitted through the rectangular hole to be incident on the fingerprint sensor 42.
The major axis of the ellipse is perpendicular to the minor axis, and 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 elliptically polarized light is parallel to the short side of the rectangular hole 411, so that the light in the first polarization direction and the light in the second polarization direction in the elliptically polarized light can penetrate through the rectangular hole 411 and irradiate onto the fingerprint sensor 42, and the transmittance of the elliptically polarized light penetrating 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 also be other materials such as metal, which is not limited in this embodiment and may be selected according to the actual situation.
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 the light of the first polarization direction of the elliptically polarized light may uniformly transmit through the filter layer 41 to further improve the accuracy of the fingerprint sensor 42 in recognizing fingerprint information.
In order to reduce the manufacturing difficulty of the filter layer 41, the number of rows and columns of the matrix may be two, and each row and each column respectively include two rectangular holes 411; alternatively, as shown in fig. 4 and 5, the number of rows and columns of the matrix may be three, and each row and each column respectively include three rectangular holes 411; in addition, as shown in fig. 4 and 5, the ratio of the first length, which is the length of the long side of the rectangular hole 411, to the second length, which is the length of the short side of the rectangular hole 411, ranges from [1.2, 2 ]. Of course, for the specific arrangement form of the matrix, that is, the specific arrangement manner of the plurality of rectangular holes 411, and the specific ratio of the first length to the second length, this embodiment may not be limited thereto, and is specifically set according to the actual situation.
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 improving the accuracy of fingerprint information recognition of the fingerprint sensor 42, the ratio of the area of each light-transmitting structure to the area of the corresponding receiving pixel 421 is equal to or greater than 0.8, that is, the area of one light-transmitting structure corresponding to one receiving pixel 421 occupies equal to or greater than 80% of the area of the receiving pixel 421.
In the embodiment of the present application, as shown in fig. 1, the display panel 10 includes a base glass 11, a light emitting layer 12, and an encapsulation glass 13 which are stacked, and the circular polarizer 20 includes 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 an encapsulation 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 and emit light upward.
Specifically, as shown in fig. 1, the display screen includes, in order from bottom to top, a fingerprint module, a substrate glass 11, a light emitting layer 12, a package glass 13, a quarter-wave plate 21, a linear polarizer 22, and a touch cover 30. In order to make more light emitted upward by the light-emitting pixel 121 irradiate the encapsulation glass 13, a certain distance is provided between the light-emitting layer 12 and a surface (a lower surface shown in fig. 1) of the encapsulation glass 13 facing the substrate glass 11, and a specific value of the distance may be set according to actual requirements, which is not limited in this embodiment. There is the default distance between the fingerprint module and the surface (the lower surface that fig. 1 shows) that base glass 11 deviates from luminescent layer 12 to make more reflection light can shine on fingerprint sensor 42 of fingerprint module, thereby improve fingerprint sensor 42 and discern the accuracy of fingerprint information.
It should be noted that the quarter-wave plate (1/4 wave plate) is a birefringent single-crystal wave plate with a certain thickness, also called as a phase retardation plate, and when light with a certain wavelength perpendicularly enters the 1/4 wave plate, the 1/4 wave plate can generate λ/4 optical path difference (i.e. pi/2 phase difference) between the emergent ordinary light (o light) and the extraordinary light (e light). When 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, and when theta is equal to 45 degrees, emergent light is circularly polarized light; when theta is not equal to 45 degrees, emergent light is elliptically polarized light; the linearly polarized light can be decomposed into o light and e light with the vibration direction vertical to the incident surface, namely the vertical optical axis; the vibration direction of the e-light is parallel to the incident surface, i.e. parallel to the optical axis.
In this embodiment, the reflected light is changed into linearly polarized light after passing through the linear polarizer, and the linearly polarized light is changed into circularly polarized light after passing through the quarter-wave plate 21. Because a gap is formed between the packaging glass 13 and the substrate glass 11, in the process of irradiating the circularly polarized light to the substrate glass 11 through the packaging glass 13, ordinary light (o light) and extraordinary light (e light) in the circularly polarized light are reflected, and the o light and the e light are reflected to be lost and different in reflection moment and become elliptically polarized light after passing through the substrate glass 11.
In practice, the fingerprint module further includes a lens assembly 43 and a substrate 44, and the lens assembly 43, the fingerprint sensor 42 and the substrate 44 are arranged in sequence from top to bottom. The lens assembly 43 is irradiated with light of a first polarization direction of the elliptically polarized light, and the lens assembly 43 is used to image 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 portions described in the drawings are only described in the illustrated direction and do not represent an actual orientation.
The display screen provided by the embodiment of the application has the following advantages:
in the embodiment of the application, the display screen includes a display panel 10, a circular polarizer 20 and a touch cover plate 30 which are stacked, and a fingerprint module is arranged on one side of the display panel 10 departing from the circular polarizer 20; the reflected light emitted from the display panel 10 toward the fingerprint module 40 is elliptically polarized light, and the reflected light is light emitted from the display panel 10 toward the circular polarizer 20 and reflected by the object 50 to be measured on the cover plate 30; fingerprint module 40 includes fingerprint sensor 42, and fingerprint sensor 42 is equipped with filter layer 41 on the surface towards display panel 10, and filter layer 41 can make the light transmission of the first polarization direction in the oval circular polarized light to penetrate to fingerprint sensor 42 is last, and filterable part display panel 10 is towards the light of fingerprint module transmission, and first polarization direction is oval circular polarized light major axis direction. It is thus clear that this embodiment can filter the partial light leak that display panel exists to reduce the light leak and to the interference that causes when fingerprint pattern module discernment fingerprint line information, improve whole SNR in order to improve display quality, thereby improve fingerprint identification's accuracy.
The embodiment of the application further provides an electronic device which specifically comprises the display screen.
Specifically, in the embodiments of the present 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.
It should be noted that the reflected light formed by the reflection of the finger can carry not only fingerprint information, but also biological sign information such as pulse, blood oxygen, rest, etc. That is to say, the fingerprint sensor of the present embodiment can detect other vital signs such as pulse, blood oxygen, rest and the like in addition to the fingerprint, so as to perform other functions such as living body detection, human health detection and the like, thereby enriching the functions of the electronic device.
The advantages of the electronic device are the same as those of the display screen, and are not described herein again.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
While alternative embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, in this document, 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. Furthermore, 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 an … …" does not exclude the presence of additional identical elements in the article or terminal device in which the element is comprised. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/", and generally means that the former and latter related objects are in an "or" relationship.
While the technical solutions provided in the present application have been described in detail above, and specific examples are applied herein to explain the principles and embodiments of the present application, for a person skilled in the art, according to the principles and implementations of the present application, the embodiments and application scope may vary.
Claims (10)
1. A display screen, comprising: the display panel comprises a display panel, a circular polarizer and a touch cover plate which are arranged in a laminated manner, wherein a fingerprint module is arranged on one side of the display panel, which is far away from the circular polarizer;
reflected light emitted from the display panel towards the fingerprint module is elliptically polarized light, and the reflected light is light emitted from the display panel towards the circular polarizer and reflected by a measured object on the cover plate;
the fingerprint module comprises a fingerprint sensor, the fingerprint sensor faces the display panel, a filter layer is arranged on the surface of the display panel, the filter layer enables light in a first polarization direction in the elliptically polarized light to penetrate to the fingerprint sensor, the display panel faces the light emitted by the fingerprint module, and the first polarization direction is the long axis direction of the elliptically polarized light.
2. The display screen of claim 1, wherein the fingerprint sensor comprises a plurality of receiving pixels;
the filter layer is made of non-light-transmitting materials, light-transmitting structures are arranged at positions of the filter layer opposite to the receiving pixels, and each light-transmitting structure comprises a plurality of rectangular holes which are arranged in an array;
The first polarization direction is parallel to the long sides of the rectangular holes, so that light in the first polarization direction in the elliptically polarized light can penetrate through the rectangular holes.
3. A display screen according to claim 2, wherein the elliptically polarized light further includes light of a second polarization direction, and the second polarization direction is 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 in the second polarization direction in the elliptically polarized light can penetrate through the rectangular hole to be emitted to the fingerprint sensor.
4. The display screen of claim 2, wherein the plurality of rectangular holes are arranged in a matrix.
5. A display screen according to claim 4, wherein the number of rows and columns of the matrix is two, and each row and each column respectively comprises two rectangular holes; or,
the number of rows and columns of the matrix is three, and each row and each column respectively comprise three rectangular holes.
6. A display screen according to claim 2 or 5, characterised in that the ratio of the first length to the second length is in the range [1.2, 2], the first length being the length of the long side of the rectangular aperture and the second length being the length of the short side of the rectangular aperture.
7. The display screen according to claim 2, wherein the ratio of the area of each light-transmitting structure to the area of the corresponding receiving pixel is greater than or equal to 0.8.
8. The display screen of claim 2, wherein the filter layer is made of silicon or aluminum.
9. The display screen of claim 1, wherein the display panel comprises a base glass, a light emitting layer and an encapsulation glass which are arranged in a laminated manner, and the circular polarizer comprises a quarter-wave plate and a linear polarizer;
the quarter-wave plate is arranged on the packaging glass, the linear polarizer is arranged on the quarter-wave plate, the cover plate is arranged on the linear polarizer, the fingerprint module is arranged on one side, deviating from the luminescent layer, of the substrate glass, and a preset distance exists between the fingerprint module and the surface, deviating from the luminescent layer, of the substrate glass.
10. An electronic device characterized in that it comprises a display screen according to any one of claims 1 to 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210160426.8A CN114518813A (en) | 2022-02-21 | 2022-02-21 | Display screen and electronic equipment |
| 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 CN114518813A (en) | 2022-02-21 | 2022-02-21 | Display screen and electronic equipment |
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| CN114518813A true CN114518813A (en) | 2022-05-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210160426.8A Pending CN114518813A (en) | 2022-02-21 | 2022-02-21 | Display screen and electronic equipment |
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| CN (1) | CN114518813A (en) |
| WO (1) | WO2023155831A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023155831A1 (en) * | 2022-02-21 | 2023-08-24 | 维沃移动通信有限公司 | Display screen and electronic device |
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| CN110741384A (en) * | 2019-04-30 | 2020-01-31 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and electronic equipment |
| CN111095281A (en) * | 2019-08-06 | 2020-05-01 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
| CN111241954A (en) * | 2020-01-03 | 2020-06-05 | 京东方科技集团股份有限公司 | Display panel and electronic device |
| CN111837134A (en) * | 2020-01-21 | 2020-10-27 | 深圳市汇顶科技股份有限公司 | Optical fingerprint detection device, touch screen and electronic equipment |
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| CN113569601A (en) * | 2020-04-28 | 2021-10-29 | 华为技术有限公司 | Under-screen fingerprint identification system and electronic equipment |
| CN114518813A (en) * | 2022-02-21 | 2022-05-20 | 维沃移动通信有限公司 | Display screen and electronic equipment |
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2022
- 2022-02-21 CN CN202210160426.8A patent/CN114518813A/en active Pending
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- 2023-02-16 WO PCT/CN2023/076456 patent/WO2023155831A1/en unknown
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| CN109190599A (en) * | 2018-10-15 | 2019-01-11 | 武汉华星光电半导体显示技术有限公司 | A kind of display panel |
| CN110741384A (en) * | 2019-04-30 | 2020-01-31 | 深圳市汇顶科技股份有限公司 | Fingerprint identification device and electronic equipment |
| 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 |
| CN111095281A (en) * | 2019-08-06 | 2020-05-01 | 深圳市汇顶科技股份有限公司 | Fingerprint detection device and electronic equipment |
| CN111241954A (en) * | 2020-01-03 | 2020-06-05 | 京东方科技集团股份有限公司 | Display panel and electronic device |
| CN111837134A (en) * | 2020-01-21 | 2020-10-27 | 深圳市汇顶科技股份有限公司 | Optical fingerprint detection device, touch screen and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023155831A1 (en) * | 2022-02-21 | 2023-08-24 | 维沃移动通信有限公司 | Display screen and electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2023155831A1 (en) | 2023-08-24 |
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