CN111444842B - Display assembly and electronic equipment - Google Patents

Display assembly and electronic equipment Download PDF

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Publication number
CN111444842B
CN111444842B CN202010224351.6A CN202010224351A CN111444842B CN 111444842 B CN111444842 B CN 111444842B CN 202010224351 A CN202010224351 A CN 202010224351A CN 111444842 B CN111444842 B CN 111444842B
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CN
China
Prior art keywords
cover plate
display module
display
light
emitter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202010224351.6A
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Chinese (zh)
Other versions
CN111444842A (en
Inventor
邓紫强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Vivo Mobile Communication Co Ltd
Original Assignee
Vivo Mobile Communication Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Vivo Mobile Communication Co Ltd filed Critical Vivo Mobile Communication Co Ltd
Priority to CN202010224351.6A priority Critical patent/CN111444842B/en
Publication of CN111444842A publication Critical patent/CN111444842A/en
Priority to PCT/CN2021/082295 priority patent/WO2021190481A1/en
Application granted granted Critical
Publication of CN111444842B publication Critical patent/CN111444842B/en
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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V40/00Recognition of biometric, human-related or animal-related patterns in image or video data
    • G06V40/10Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
    • G06V40/12Fingerprints or palmprints
    • G06V40/13Sensors therefor
    • G06V40/1318Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/10Image acquisition
    • G06V10/12Details of acquisition arrangements; Constructional details thereof
    • G06V10/14Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/145Illumination specially adapted for pattern recognition, e.g. using gratings
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06VIMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
    • G06V10/00Arrangements for image or video recognition or understanding
    • G06V10/10Image acquisition
    • G06V10/12Details of acquisition arrangements; Constructional details thereof
    • G06V10/14Optical characteristics of the device performing the acquisition or on the illumination arrangements
    • G06V10/147Details of sensors, e.g. sensor lenses

Abstract

The embodiment of the invention provides a display component and electronic equipment, wherein the display component comprises: a display module; the cover plate is arranged on the display module; the emitter is arranged on one side of the cover plate, which is close to the display module, and the emitter is arranged on the area, which is not covered by the display module, of the cover plate; and the receiver is arranged on the non-display side of the display module. The light is emitted to the cover plate from the area of the cover plate, which is not covered by the display module, the light is emitted or totally reflected in the cover plate, when the finger abuts against one side of the cover plate, which is far away from the display module, the light in the cover plate is emitted from one side of the cover plate, which is close to the display module, and the receiver receives the light emitted from the cover plate, so that the loss of the light entering the cover plate is reduced, the light utilization rate is improved, and the clear image of the fingerprint is convenient to acquire.

Description

Display assembly and electronic equipment
Technical Field
The invention relates to the technical field of display, in particular to a display assembly and electronic equipment.
Background
At present, the mobile phone screen enters the comprehensive screen era from non-comprehensive screen, the capacitive fingerprint is mainly used by the existing liquid crystal display screen, in order to improve the screen occupation ratio, the fingerprint is required to be arranged on the rear cover of the mobile phone when the comprehensive screen is adopted, if the fingerprint is arranged on the display side of the display screen when the comprehensive screen is adopted, as shown in fig. 1, light passes through the display module 1 twice, the display module 1 blocks the fingerprint light, the light loss is more, clear fingerprint images are not easy to obtain, the acquisition of the fingerprint is affected, the fingerprint is inconvenient to be arranged on the display side of the display screen when the comprehensive screen is adopted, the display screen cannot realize the comprehensive screen in the real sense, and the use experience of the mobile phone is reduced.
Disclosure of Invention
In view of this, the invention provides a display assembly and an electronic device, which are used for solving the problems that when the existing full screen is used for setting fingerprints on the display side of the display screen, the display module blocks fingerprint light, so that more light is lost, clear fingerprint images are not easy to obtain, and the use is inconvenient.
In order to solve the technical problems, the invention adopts the following technical scheme:
in a first aspect, a display assembly according to an embodiment of the present invention includes:
a display module;
the cover plate is arranged on the display module;
the emitter is arranged on one side of the cover plate, which is close to the display module, and the emitter is arranged on the area, which is not covered by the display module, of the cover plate;
and the receiver is arranged on the non-display side of the display module.
In a second aspect, an electronic device according to an embodiment of the present invention includes the display assembly described in the above embodiment.
The technical scheme of the invention has the following beneficial effects:
according to the display assembly provided by the embodiment of the invention, the cover plate is arranged on the display module, the transmitter is arranged on one side of the cover plate, which is close to the display module, the transmitter is arranged on the area, which is not covered by the display module, of the cover plate, and the receiver is arranged on the non-display side of the display module. The light emitted by the emitter is incident on the cover plate from the area which is not covered by the display module, the light is reflected or totally reflected in the cover plate for transmission, when an obstacle (such as a finger) is stopped against one side of the cover plate, which is far away from the display module, the light in the cover plate is emitted from one side of the cover plate, which is close to the display module, the receiver is used for receiving the light emitted from one side of the cover plate, which is close to the display module, the emitter emits the light to the cover plate from the area which is not covered by the display module, so that the light loss caused by the blocking of the display module when the light enters the cover plate can be reduced, the intensity of the light received by the receiver is enhanced, the utilization rate of the light is improved, the clear image of the fingerprint can be acquired according to the received light, the fingerprint can be acquired accurately and identified, the fingerprint can be conveniently arranged on the front surface of the display screen, the real comprehensive screen is realized, the use is convenient, and the use experience is improved.
Drawings
FIG. 1 is a schematic diagram of a path of fingerprint light in the prior art;
FIG. 2 is a schematic diagram of a display assembly according to an embodiment of the invention;
FIG. 3 is a schematic view illustrating a path of light in a display module according to an embodiment of the invention;
FIG. 4 is a schematic illustration of an optical coating in a display assembly according to an embodiment of the invention;
fig. 5 is a schematic diagram illustrating the working principle of an optical coating in a display assembly according to an embodiment of the present invention.
Reference numerals
A cover plate 10;
a transmitter 20;
a receiver 30;
an optical coating 40; a triangular prism structure 41;
a display layer 50; a backlight 51;
a middle frame 60.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. It will be apparent that the described embodiments are some, but not all, embodiments of the invention. All other embodiments, which are obtained by a person skilled in the art based on the described embodiments of the invention, fall within the scope of protection of the invention.
A display assembly according to an embodiment of the present invention is described in detail below.
The display assembly according to the embodiment of the present invention includes a display module, a cover plate 10, a transmitter 20, and a receiver 30. Specifically, as shown in fig. 2 and 3, the cover plate 10 is disposed on the display module, the emitter 20 is disposed on one side of the cover plate 10 near the display module, the emitter 20 is disposed on an area of the cover plate 10 not covered by the display module, and the receiver 30 is disposed on the non-display side of the display module.
That is, the display assembly is mainly composed of a display module, a cover plate 10, an emitter 20 and a receiver 30, wherein the cover plate 10 can be transparent, the cover plate 10 can be arranged on the display module, the display module can be protected through the cover plate 10, the emitter 20 can be an infrared emitter, the receiver 30 can be an infrared camera, the emitter 20 is arranged on one side of the cover plate 10 close to the display module, the emitter 20 is arranged on an area of the cover plate 10 which is not covered by the display module, light emitted by the emitter 20 can enter the cover plate 10 from the area of the cover plate 10 which is not covered by the display module, light loss caused by blocking of the display module when the light enters the cover plate 10 is reduced, the intensity of the light received by the receiver 20 is enhanced, and the light utilization rate is improved.
The light can be emitted to the cover plate 10 through the emitter 20, for example, infrared rays can be emitted, the light entering the cover plate 10 can be totally reflected in the cover plate 10, when an obstacle (such as a finger) is stopped against one side of the cover plate 10 far away from the display module, the light in the cover plate 10 is emitted from one side of the cover plate 10 close to the display module under the reflection of the obstacle, the receiver 30 is arranged on the non-display side of the display module, the light emitted from one side of the cover plate 10 close to the display module can be received through the receiver 30, when the obstacle is a finger, a fingerprint can be acquired according to the light received by the receiver 30, as the light enters the cover plate 10 from the area of the cover plate 10 which is not covered by the display module, the light can pass through the display module once, the light loss caused by the blocking of the display module when the light enters the cover plate 10 is reduced, the intensity of the light received by the receiver 20 is enhanced, the clear image of the fingerprint can be acquired, and the fingerprint can be acquired conveniently and accurately acquired and recognized.
According to the display assembly provided by the embodiment of the invention, the emitter 20 emits light to the cover plate 10, the light enters the cover plate 10 from the area of the cover plate 10 which is not covered by the display module, the light loss caused by blocking of the display module when the light enters the cover plate is reduced, the intensity of the light received by the receiver is enhanced, the light utilization rate of the light is improved, the light is reflected or totally reflected in the cover plate 10, when a finger abuts against one side of the cover plate 10 far away from the display module, the light in the cover plate 10 exits from one side of the cover plate 10 near the display module, the light exiting from one side of the cover plate 10 near the display module is received by the receiver 30, and the clear image of the fingerprint can be acquired according to the received light, so that the fingerprint can be acquired and identified conveniently, the fingerprint can be arranged on the display side of the display screen conveniently, the real full screen is realized, the use is convenient, and the use experience is improved.
In some embodiments of the present invention, as shown in fig. 2 and 3, an optical structure may be disposed on a side of the cover plate 10 near the display module, where the optical structure may be disposed between the emitter 20 and the cover plate 10, where the optical structure may be used to collect light emitted from the emitter 20 and make the light incident on the cover plate 10 from a region of the cover plate 10 not covered by the display module, where the light emitted from the emitter 20 is collected by the optical structure and then projected onto the cover plate 10, where the light may be obliquely (non-vertically) incident on the cover plate 10, where the incident angle may be adjusted as required, so that the light entering the cover plate 10 is reflected or totally reflected, where the light emitted from the emitter is scattered, resulting in a reduction in the light utilization rate, where the scattered light may be collected in a desired direction by the optical structure, and then projected onto the cover plate 10 after being collected by the optical structure, where the light is projected onto the cover plate 10 from a designated direction, so as to improve the intensity of the light and improve the light utilization rate. The angle of the light entering the cover plate 10 can be controlled by the optical coating, and the light control of any angle can be realized.
In other embodiments of the present invention, the optical structure is disposed on the cover plate 10 in an area not covered by the display module, and the emitter 20 and the optical structure may be disposed at a distance from each other, so that the emitter 20 emits light to the optical structure from a desired angle, so that the optical structure collects light, the optical structure is disposed, and interference between the optical structure and the display module is avoided.
In the embodiment of the present invention, as shown in fig. 3 and 4, the optical structure is an optical coating 40 having at least one triple prism structure 41, the triple prism structure 41 collects light emitted from the emitter 20 and enters the cover plate 10, alternatively, the optical coating 40 may have a plurality of triple prism structures 41, the plurality of triple prism structures 41 are uniformly spaced apart, the light emitted from the emitter 10 may be collected by the triple prism structures 41, and the triple prism structures 41 may project the collected light toward the cover plate 10 from a single direction, thereby reducing loss of light at other angles and improving intensity of the light. The optical structure 40 may be a transparent polyimide film having at least one triangular prism structure 41 for ease of placement and low cost.
Alternatively, the optical coating 40 may be a transparent layer, avoiding the influence of the optical coating 40 on the light.
The structure of the optical coating 40 may be as shown in fig. 3 and 4, the thickness of the optical coating 40 may be 10-50um, the optical coating 40 may be a transparent polyimide material layer, and as shown in fig. 4, the triple prism structure 41 may enable the incoming multi-angle light to undergo multiple reflection and refraction, and finally obtain the light with the maximum energy of the designated angle. The structural effect of the optical coating 40 is negligible, the structural space is saved, normal display screen display is not affected, and fingerprint acquisition and display screen work are relatively independent.
In some embodiments of the present invention, the emitter 20 is disposed spaced apart from the cover plate 10 so that the emitter 20 can emit light toward the cover plate 10 from a desired angle. The emitter 20 can be arranged at one side of the cover plate 10 close to the display module and in an area not covered by the display module, so that the display module is prevented from shielding or weakening light rays emitted by the emitter 20, and the emitter 20 can be obliquely arranged towards the cover plate 10, so that the light rays emitted by the emitter 20 are directly projected to the cover plate 10. When the optical coating 40 is disposed, the emitter 20 may be disposed obliquely toward the optical coating 40, and the light emitted by the emitter 20 may be directly projected toward the optical coating 40, thereby reducing the loss of light.
In other embodiments of the present invention, the display module includes a display layer 50 and a backlight 51, the backlight 51 may be a light emitting diode (Light Emitting Diode, LED) light source, the display layer 50 may be disposed between the cover plate 10 and the backlight 51, and the receiver 30 may be disposed on a side of the backlight 51 away from the display layer 50, that is, the backlight 51 is disposed between the receiver 30 and the display layer 50, and the receiver 30 may be selected according to a position of the fingerprint touch area. The frequency of the light emitted by the backlight 51 is different from that of the light emitted by the emitter 20, for example, the light emitted by the backlight 51 may be white light, and the light emitted by the emitter 20 may be infrared, so that the receiver can accurately receive the light.
According to an embodiment of the present invention, as shown in fig. 2 and 3, the display assembly further includes a middle frame 60, the cover plate 10 is disposed on the middle frame 60, the cover plate 10 may be adhered to the middle frame 60, and the display module, the transmitter 20, and the receiver 30 may be disposed between the cover plate 10 and the middle frame 60, respectively.
The display assembly can further comprise a flexible circuit board and a chip, the flexible circuit board and the chip can be respectively connected with the display module, and the display module is controlled through the flexible circuit board and the chip.
The embodiment of the invention also provides electronic equipment, which comprises the display component in the embodiment. The display module of the embodiment is applied to electronic equipment, light is emitted to the cover plate through the emitter, reflection or total reflection is generated in the cover plate for transmission, when the finger abuts against one side of the cover plate far away from the display module, the light in the cover plate is emitted from one side of the cover plate close to the display module, the light emitted from one side of the cover plate close to the display module is received through the receiver, and the fingerprint is acquired according to the received light, so that the fingerprint can be arranged on the front surface of the display screen, the real comprehensive screen is realized, the use is convenient, and the use experience is improved.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate a relative positional relationship, which changes accordingly when the absolute position of the object to be described changes.
While the foregoing is directed to the preferred embodiments of the present invention, it will be appreciated by those skilled in the art that various modifications and adaptations can be made without departing from the principles of the present invention, and such modifications and adaptations are intended to be comprehended within the scope of the present invention.

Claims (6)

1. A display assembly, comprising:
a display module;
the cover plate is arranged on the display module;
the emitter is arranged on one side of the cover plate, which is close to the display module, and the emitter is arranged on the area, which is not covered by the display module, of the cover plate;
the receiver is arranged on the non-display side of the display module;
an optical structure is arranged on one side, close to the display module, of the cover plate, and the optical structure is arranged between the emitter and the cover plate;
the optical structure is an optical coating having a plurality of triangular prism structures that concentrate light emitted from the emitter and incident on the cover plate;
the optical structure is arranged on the cover plate in an area which is not covered by the display module, and the emitter is arranged at intervals from the optical structure;
the triangular prism structures are uniformly distributed at intervals; the thickness of the optical coating is 10-50um, and the optical coating is a polyimide material layer.
2. The display assembly of claim 1, wherein the optical coating is a transparent layer.
3. The display assembly of claim 1, wherein the emitter is disposed spaced apart from the cover plate.
4. The display assembly of claim 1, wherein the display module comprises
The display device comprises a cover plate, a display layer and a backlight source, wherein the display layer is arranged between the cover plate and the backlight source, the receiver is arranged on one side, far away from the display layer, of the backlight source, and the frequency of light rays emitted by the backlight source is different from that of light rays emitted by the emitter.
5. The display assembly of claim 1, further comprising:
the middle frame, the apron is established on the middle frame, the display module assembly, the transmitter and the receiver are established respectively the apron with between the middle frame.
6. An electronic device comprising the display assembly of any one of claims 1-5.
CN202010224351.6A 2020-03-26 2020-03-26 Display assembly and electronic equipment Active CN111444842B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN202010224351.6A CN111444842B (en) 2020-03-26 2020-03-26 Display assembly and electronic equipment
PCT/CN2021/082295 WO2021190481A1 (en) 2020-03-26 2021-03-23 Display assembly and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010224351.6A CN111444842B (en) 2020-03-26 2020-03-26 Display assembly and electronic equipment

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Publication Number Publication Date
CN111444842A CN111444842A (en) 2020-07-24
CN111444842B true CN111444842B (en) 2024-01-26

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CN (1) CN111444842B (en)
WO (1) WO2021190481A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111444842B (en) * 2020-03-26 2024-01-26 维沃移动通信有限公司 Display assembly and electronic equipment
CN113343825A (en) * 2021-05-31 2021-09-03 昆山国显光电有限公司 Display module

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CN108830178A (en) * 2018-05-25 2018-11-16 南昌华勤电子科技有限公司 Fingerprint recognition mould group, electronic equipment and fingerprint image generation method
CN109784307A (en) * 2019-01-31 2019-05-21 维沃移动通信有限公司 Terminal device
CN110275641A (en) * 2019-06-28 2019-09-24 Oppo广东移动通信有限公司 Electronic device and the lower optical finger print mould group of screen
CN110569798A (en) * 2019-09-10 2019-12-13 京东方科技集团股份有限公司 Line identification module, line identification device and display device
CN110596931A (en) * 2019-09-18 2019-12-20 Oppo广东移动通信有限公司 Display screen assembly and electronic equipment
CN210155688U (en) * 2019-07-30 2020-03-17 深圳市汇顶科技股份有限公司 Fingerprint identification display module, optical fingerprint identification device under screen and electronic equipment

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CN110619305A (en) * 2019-09-18 2019-12-27 Oppo广东移动通信有限公司 Display screen assembly and electronic equipment
CN110569825B (en) * 2019-09-18 2023-02-28 Oppo广东移动通信有限公司 Display screen assembly and electronic equipment for identifying fingerprints under screen
CN111444842B (en) * 2020-03-26 2024-01-26 维沃移动通信有限公司 Display assembly and electronic equipment

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Publication number Priority date Publication date Assignee Title
CN106941541A (en) * 2017-03-07 2017-07-11 广东欧珀移动通信有限公司 Functional unit, display device and terminal
CN108830178A (en) * 2018-05-25 2018-11-16 南昌华勤电子科技有限公司 Fingerprint recognition mould group, electronic equipment and fingerprint image generation method
CN109784307A (en) * 2019-01-31 2019-05-21 维沃移动通信有限公司 Terminal device
CN110275641A (en) * 2019-06-28 2019-09-24 Oppo广东移动通信有限公司 Electronic device and the lower optical finger print mould group of screen
CN210155688U (en) * 2019-07-30 2020-03-17 深圳市汇顶科技股份有限公司 Fingerprint identification display module, optical fingerprint identification device under screen and electronic equipment
CN110569798A (en) * 2019-09-10 2019-12-13 京东方科技集团股份有限公司 Line identification module, line identification device and display device
CN110596931A (en) * 2019-09-18 2019-12-20 Oppo广东移动通信有限公司 Display screen assembly and electronic equipment

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Publication number Publication date
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WO2021190481A1 (en) 2021-09-30

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