CN110738193B - Electronic equipment - Google Patents
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- CN110738193B CN110738193B CN201911050104.2A CN201911050104A CN110738193B CN 110738193 B CN110738193 B CN 110738193B CN 201911050104 A CN201911050104 A CN 201911050104A CN 110738193 B CN110738193 B CN 110738193B
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- light guide
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- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 206010070834 Sensitisation Diseases 0.000 claims abstract 4
- 230000008313 sensitization Effects 0.000 claims abstract 4
- 239000000758 substrate Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 description 7
- 229920001621 AMOLED Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1318—Sensors therefor using electro-optical elements or layers, e.g. electroluminescent sensing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/13—Sensors therefor
- G06V40/1324—Sensors therefor by using geometrical optics, e.g. using prisms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06V—IMAGE OR VIDEO RECOGNITION OR UNDERSTANDING
- G06V40/00—Recognition of biometric, human-related or animal-related patterns in image or video data
- G06V40/10—Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
- G06V40/12—Fingerprints or palmprints
- G06V40/1347—Preprocessing; Feature extraction
- G06V40/1359—Extracting features related to ridge properties; Determining the fingerprint type, e.g. whorl or loop
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Human Computer Interaction (AREA)
- General Physics & Mathematics (AREA)
- Multimedia (AREA)
- Theoretical Computer Science (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Optics & Photonics (AREA)
- Image Input (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
Abstract
The invention discloses an electronic device, comprising: a display screen (100); an optical device (300), wherein the optical device (300) is arranged opposite to the display screen (100), the optical device (300) comprises a photosensitive chip (310), the photosensitive chip (310) is provided with at least two photosensitive areas, and each photosensitive area faces the display screen (100); the light guide piece (400), the light guide piece (400) sets up between display screen (100) and sensitization chip (310), and the first end of light guide piece (400) is towards display screen (100), and the second end of light guide piece (400) is towards at least one sensitization region. The light sensing chip of the electronic equipment can sense the light rays passing through different positions of the display screen at the same time, so that the number of optical devices can be properly reduced, the occupation of the optical devices on the space in the electronic equipment is relieved, and the structural design of the electronic equipment is simpler.
Description
Technical Field
The present invention relates to the field of communications devices, and in particular, to an electronic device.
Background
The display screen of the electronic device is an important man-machine interaction part, so that the structure of the display screen directly determines whether the user experience of the electronic device is good or not.
Optical devices such as a camera and a fingerprint identification module are required to be arranged in the electronic equipment, and the optical devices can realize corresponding shooting, fingerprint identification and other functions. Taking fingerprint identification as an example, most of the current electronic devices only support single-point fingerprint identification, but with the continuous upgrading of the demands of consumers, the single-point fingerprint identification mode cannot fully meet the demands of consumers, and multi-point fingerprint identification is more likely to occur.
In order to realize multi-point fingerprint identification, the electronic equipment needs to be provided with a plurality of optical devices corresponding to different identification areas, so that the space in the electronic equipment is seriously occupied, and the structural design difficulty of the electronic equipment is increased.
Disclosure of Invention
The invention discloses electronic equipment, which aims to solve the problem of high structural design difficulty of the electronic equipment.
In order to solve the problems, the invention adopts the following technical scheme:
an electronic device, comprising:
a display screen;
the optical device is arranged opposite to the display screen and comprises a photosensitive chip, wherein the photosensitive chip is provided with at least two photosensitive areas, and each photosensitive area faces the display screen;
the light guide piece is arranged between the display screen and the photosensitive chip, the first end of the light guide piece faces the display screen, and the second end of the light guide piece faces at least one photosensitive area.
The technical scheme adopted by the invention can achieve the following beneficial effects:
the electronic equipment disclosed by the invention is provided with the light guide member, the light sensitive chip is provided with a plurality of light sensitive areas, one part of light passing through different positions of the display screen can directly reach at least one light sensitive area, and the other part of light can reach other light sensitive areas through the light guide member. Therefore, the photosensitive chip of the electronic equipment can simultaneously sense the light rays passing through different positions of the display screen, so that the number of optical devices can be properly reduced, the occupation of the optical devices on the space in the electronic equipment is relieved, and the structural design of the electronic equipment is simpler.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
fig. 2 is a cross-sectional view of an electronic device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a photosensitive chip in an electronic device according to an embodiment of the present invention.
Reference numerals illustrate:
100-display screen, 110-first identification area, 120-second identification area, 101-first substrate, 102-second substrate, 103-organic luminescent layer, 103 a-display pixel, 300-optical device, 310-photosensitive chip, 311-first photosensitive area, 312-second photosensitive area, 313-wiring area, 320-light distribution element, 400-light guide piece, 410-first reflecting surface, 420-second reflecting surface, 500-finger.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The technical scheme disclosed by each embodiment of the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1-3, an embodiment of the present invention discloses an electronic device including a display screen 100, an optical device 300, and a light guide 400.
The display screen 100 is for display. The number of the display screens 100 may be one or two, and may include a first display screen and a second display screen, where the first display screen and the second display screen may be disposed opposite to each other, that is, the first display screen and the second display screen are disposed on opposite sides of the electronic device, so that the electronic device is in a dual-sided screen structure. In particular, the first display screen may be a front screen and the second display screen may be a rear screen.
The optical device 300 is disposed opposite to the display screen 100, and the optical device 300 includes a photosensitive chip 310, where the photosensitive chip 310 has at least two photosensitive areas, and each photosensitive area faces the display screen 100. When the display screen includes a first display screen and a second display screen, each photosensitive area faces the same first display screen or the same second display screen. In particular, the photosensitive regions may include a first photosensitive region 311 and a second photosensitive region 312. The shape of the photosensitive chip 310 may be rectangular, circular, elliptical, etc., and the shape of the photosensitive area may be rectangular, circular, elliptical, etc., which is not limited in the embodiment of the present invention. The photosensitive region may be used for photosensing so that an optical signal may be converted into an electrical signal in order to perform the optical function of the optical device 300. Alternatively, the photosensitive chip 310 may be electrically connected to the motherboard of the electronic device through a flexible circuit board, so as to facilitate transmission of electrical signals between the photosensitive chip 310 and the motherboard.
The light guide 400 is disposed between the display screen 100 and the photosensitive chip 310, a first end of the light guide 400 faces the display screen 100, and a second end of the light guide 400 faces at least one photosensitive area. The light guide 400 herein may perform a light guiding function, and in particular, light entering the first end of the light guide 400 may propagate within the light guide 400 and finally exit through the second end of the light guide 400.
The photosensitive chip 310 is provided with a plurality of photosensitive areas, and one part of the light passing through different positions of the same display screen 100 can directly reach at least one photosensitive area, and the other part can reach other photosensitive areas through the light guide 400. Therefore, the light sensing chip 310 of the electronic device can sense the light passing through different positions of the display screen 100 at the same time, so that the number of the optical devices 300 can be reduced appropriately, thereby alleviating the occupation of the optical devices 300 on the space in the electronic device, and making the structural design of the electronic device simpler.
Optionally, the light guide 400 may be a prism, which can reflect light by using the principle of total reflection, so that the prism has a better light guiding effect, so that more light can reach the light sensing area through the light guide 400, and the light sensing effect of the light sensing chip 310 is improved.
In an alternative embodiment, the optical device 300 may be a fingerprint recognition module, where the display screen 100 has a plurality of recognition areas, and the plurality of recognition areas may include the first recognition area 110 and the second recognition area 120, and as previously described, the plurality of light-sensing areas may include the first light-sensing area 311 and the second light-sensing area 312, where the first light-sensing area 311 is opposite to the first recognition area 110, and the first end of the light guide 400 faces the second recognition area 120, and the second end faces the second light-sensing area 312. Referring to the direction of the light path shown by the arrow line in fig. 2, when the finger 500 of the user is placed in the first recognition area 110, after the light passing through the display screen 100 reaches the finger 500 of the user, the light can be reflected to different degrees because the fingerprint of the finger 500 has fingerprint valleys and fingerprint ridges, so that the reflected light carries the fingerprint information of the user, after the light reaches the first light sensing area 311 of the light sensing chip 310, the light sensing chip 310 can convert the light signal into an electrical signal, and perform operation processing, finally obtain the fingerprint information of the user, and the fingerprint information can be compared with the fingerprint information pre-stored in the electronic device, thereby judging whether the access of the user is legal. Similarly, when the finger 500 of the user is placed in the second recognition area 120, the light passing through the display screen 100 reaches the finger 500 of the user and is reflected, the reflected light carries fingerprint information of the user, and after the light reaches the second photosensitive area 312 of the photosensitive chip 310 through the light guide 400, the photosensitive chip 310 can convert the optical signal into an electrical signal and perform operation processing, so as to finally obtain fingerprint information of the user, and the fingerprint information can be compared with the fingerprint information pre-stored in the electronic device, so as to determine whether the access of the user is legal. After the scheme is adopted, no matter which position of the display screen 100 is operated by a user, fingerprint identification can be realized, so that the fingerprint identification operation of the electronic equipment is more convenient.
The structure of the light guide 400 may be flexibly selected, and in order to simplify the structure of the light guide 400 and reduce the space occupied by the light guide 400, the light guide 400 may be configured as a bar structure, and the extending direction of the light guide 400 is parallel to the display screen 100. At this time, the space occupied by the light guide 400 in the thickness direction of the electronic device may be further reduced, thereby more facilitating stacking of other components in the electronic device. Meanwhile, the electronic device has a relatively abundant space in a direction parallel to the display screen 100, so that the size of the light guide 400 can be appropriately increased, so that the light guide 400 can realize fingerprint recognition at more positions, thereby further facilitating fingerprint recognition operation of the electronic device.
Alternatively, the light guide 400 may be provided with a first reflecting surface 410 and a second reflecting surface 420, where the first reflecting surface 410 may be specifically disposed at a first end of the light guide 400, the second reflecting surface 420 may be specifically disposed at a second end of the light guide 400, the first reflecting surface 410 faces the second identification area 120, and the second reflecting surface 420 faces the second photosensitive area 312. At this time, after the light reflected by the finger 500 at the second recognition area 120 enters the light guide 400, the light is reflected by the first reflection surface 410 to the second reflection surface 420, and the second reflection surface 420 further reflects the light to the second light sensing area 312, so that the light sensing chip 310 performs the fingerprint recognition operation. The first reflective surface 410 and the second reflective surface 420 may each be disposed obliquely with respect to the display screen 100 to achieve reflection of light. When the technical scheme is adopted, the light can reach the photosensitive chip 310 after at least two reflections, no matter the distance between the second identification area 120 and the second photosensitive area 312 is far or near, the light can accurately reach the second photosensitive area 312, so that the structure can better adapt to the requirements of users for implementing fingerprint identification operation at a plurality of positions of the display screen 100.
Further, the first reflecting surface 410 and the second reflecting surface 420 may be both disposed as a plane and parallel to each other. At this time, the structure of the light guide 400 is simpler, and the propagation direction of the light in the light guide 400 is more controllable, so that the arrangement of the photosensitive chip 310 and other components is more convenient. Further, the angle between the first reflecting surface 410 and the display screen 100 may be 45 °, the angle between the second reflecting surface 420 and the display screen 100 may be 45 °, the plane where the photosensitive chip 310 is located may be parallel to the display screen 100, and the space where the photosensitive chip 310 may be disposed in the direction parallel to the display screen 100 of the electronic device is more sufficient, so that the size of the photosensitive chip 310 may be properly increased, thereby improving the photosensitive effect of the photosensitive chip 310 and optimizing the working performance of the optical device 300.
In another embodiment, the optical device 300 may be a camera, where the display screen 100 has a plurality of light-transmitting regions, and the light-transmitting regions may include a first light-transmitting region and a second light-transmitting region, and as previously described, the plurality of light-sensing regions may include a first light-sensing region 311 and a second light-sensing region 312, the first light-sensing region 311 is opposite to the first light-transmitting region, a first end of the light-guiding member 400 faces the second light-transmitting region, and a second end of the light-guiding member 400 faces the second light-sensing region 312. The first light-transmitting area and the second light-transmitting area can both pass through light, so that light in the external environment can enter the first light-sensing area 311 of the light-sensing chip 310 through the first light-transmitting area, and shooting operation around the first light-transmitting area is realized; after the light in the external environment passes through the second light-transmitting region, the light can reach the second light-sensing region 312 of the light-sensing chip 310 through the light guide 400, so as to realize shooting operation around the second light-transmitting region. After the scheme is adopted, the user can more conveniently realize shooting operations at different positions, so that the shooting operations of the electronic equipment are more convenient.
Of course, the optical device 300 may be other devices besides the fingerprint recognition module and the camera described above, for example, may be an infrared light supplement lamp.
In a further embodiment, the optical device 300 may further include a light distribution element 320, where the light distribution element 320 is disposed between the display screen 100 and the photosensitive chip 310. Alternatively, the light distribution element 320 may include at least one of a lens, a collimator, and a filter, and of course, the light distribution element 320 may also include other elements having a light distribution effect, which is not limited herein. The light distribution element 320 can change the propagation direction of the light, so as to realize the functions of gathering and filtering the light, thereby making the light reaching the photosensitive chip 310 more beneficial to the photosensitivity of the photosensitive chip 310. In a specific embodiment, the number of the light distribution elements 320 may be one or multiple, and may be flexibly selected according to the light distribution requirement.
In view of a certain uncertainty in the propagation direction of the light guided through the light guide 400, in order to improve the light sensing effect of the second light sensing region 312, a portion of the light distribution element 320 may be located between the second end of the light guide 400 and the light sensing chip 310, so that the light distribution element 320 may further change the propagation direction of the light emitted from the light guide 400, and thus the second light sensing region 312 senses the light guided through the light guide 400 more accurately and more efficiently. At this time, another portion of the light distribution element 320 may be located between the display screen 100 and the first photosensitive region 311, so that the light distribution element 320 may also distribute light passing through another position of the display screen 100, thereby enhancing the light distribution effect of the light distribution element 320.
In the embodiment of the present invention, the display 100 may be a liquid crystal display or an organic light emitting display. When the display panel 100 employs an organic light emitting display panel, the display panel 100 may include a first substrate 101, a second substrate 102, and an organic light emitting layer 103, the organic light emitting layer 103 being disposed between the first substrate 101 and the second substrate 102, the organic light emitting layer 103 may include a plurality of display pixels 103a, and the display pixels 103a may be programmed to emit light. The first substrate 101 and the second substrate 102 may be glass plates, which may protect the organic light emitting layer 103 and may also serve as a setting base for other components of the display 100. In contrast, the organic light emitting display screen has a better display effect, and the gaps between the display pixels 103a of the organic light emitting layer 103 allow light to pass therethrough, thereby facilitating the arrangement of the optical device 300 under the display screen 100, thereby improving the screen ratio of the electronic device. Further, the display 100 may be an AMOLED (Active Matrix Organic Light Emitting Diode ) display.
Alternatively, the photosensitive areas of the photosensitive chip 310 may be separately provided, but in order to facilitate processing of the photosensitive chip 310, the photosensitive areas may be formed together as an integral photosensitive area while minimizing the size of the photosensitive chip 310 in the case of forming the same photosensitive area. That is, each photosensitive region is in direct contact, and the corresponding portion thereof may be integrally formed. At this time, the photosensitive chip 310 further has a routing area 313, and the routing area 313 may be provided with a routing structure of the photosensitive chip 310, which may be located at an edge of the entire photosensitive chip 310, and the routing area 313 surrounds the integral photosensitive area.
The electronic device disclosed by the embodiment of the invention can be a smart phone, a tablet computer, an electronic book reader or a wearable device. Of course, the electronic device may be another device, which is not limited in this embodiment of the present invention.
The foregoing embodiments of the present invention mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in view of brevity of line text, no further description is provided herein.
The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are to be included in the scope of the claims of the present invention.
Claims (9)
1. An electronic device, comprising:
a display screen (100), the display screen (100) having a plurality of identification areas, the plurality of identification areas comprising a first identification area (110) and a second identification area (120);
the optical device (300), the optical device (300) is arranged opposite to the display screen (100), the optical device (300) is a fingerprint identification module, the optical device (300) comprises a photosensitive chip (310), the photosensitive chip (310) is provided with at least two photosensitive areas, each photosensitive area faces the display screen (100), the photosensitive areas comprise a first photosensitive area (311) and a second photosensitive area (312), the first photosensitive area (311) is opposite to the first identification area (110), and light passing through the first identification area (110) directly reaches the first photosensitive area (311);
the light guide piece (400), light guide piece (400) set up display screen (100) with between photosensitive chip (310), the first end orientation of light guide piece (400) second discernment region (120), the second end orientation of light guide piece (400) second sensitization region (312), the first end of light guide piece (400) is the light-in end, the second end of light guide piece (400) is the light-out end, light guide piece (400) is the bar structure, the extending direction of light guide piece (400) is parallel to display screen (100), the light-in end with the light-out end is followed the extending direction of light guide piece (400) distributes in proper order, passes light through second discernment region (120) passes through light guide piece (400) reaches second sensitization region (312).
2. The electronic device of claim 1, wherein the light guide (400) has a first reflective surface (410) and a second reflective surface (420), the first reflective surface (410) facing the second identification region (120), the second reflective surface (420) facing the second photosensitive region (312).
3. The electronic device of claim 2, wherein the first reflective surface (410) and the second reflective surface (420) are planar and parallel to each other.
4. The electronic device of claim 1, wherein the optical device (300) is a camera, the display screen (100) has a plurality of light-transmitting regions, the plurality of light-transmitting regions including a first light-transmitting region and a second light-transmitting region, the plurality of light-sensing regions including a first light-sensing region (311) and a second light-sensing region (312), the first light-sensing region (311) being opposite the first light-transmitting region, the first end being oriented toward the second light-transmitting region, the second end being oriented toward the second light-sensing region (312).
5. The electronic device of claim 1, wherein the optical element (300) further comprises a light distribution element (320), the light distribution element (320) being disposed between the display screen (100) and the light sensing chip (310).
6. The electronic device of claim 5, wherein a portion of the light distribution element (320) is located between the second end and the light sensing chip (310).
7. The electronic device of claim 5, wherein the light distribution element (320) comprises at least one of a lens, a collimator, and a filter.
8. The electronic device according to claim 1, wherein the display screen (100) comprises a first substrate (101), a second substrate (102) and an organic light emitting layer (103), the organic light emitting layer (103) being arranged between the first substrate (101) and the second substrate (102).
9. The electronic device of claim 1, wherein the photo-sensing chip (310) further has a routing area (313), each of the photo-sensing areas together forming an integral photo-sensing area, the routing area (313) surrounding the integral photo-sensing area.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050104.2A CN110738193B (en) | 2019-10-31 | 2019-10-31 | Electronic equipment |
| PCT/CN2020/124520 WO2021083231A1 (en) | 2019-10-31 | 2020-10-28 | Electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911050104.2A CN110738193B (en) | 2019-10-31 | 2019-10-31 | Electronic equipment |
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| CN110738193A CN110738193A (en) | 2020-01-31 |
| CN110738193B true CN110738193B (en) | 2024-01-12 |
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| CN201911050104.2A Active CN110738193B (en) | 2019-10-31 | 2019-10-31 | Electronic equipment |
Country Status (2)
| Country | Link |
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| CN (1) | CN110738193B (en) |
| WO (1) | WO2021083231A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110738193B (en) * | 2019-10-31 | 2024-01-12 | 维沃移动通信有限公司 | Electronic equipment |
| CN114244940A (en) * | 2022-01-11 | 2022-03-25 | Oppo广东移动通信有限公司 | Under-screen identification assembly and electronic equipment |
| CN117058724A (en) * | 2022-05-07 | 2023-11-14 | 华为技术有限公司 | Fingerprint identification device and electronic equipment |
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| CN110266933A (en) * | 2019-07-23 | 2019-09-20 | 华勤通讯技术有限公司 | A kind of camera module and terminal |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110738193A (en) | 2020-01-31 |
| WO2021083231A1 (en) | 2021-05-06 |
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