CN111131552A

CN111131552A - Electronic device

Info

Publication number: CN111131552A
Application number: CN201811280539.1A
Authority: CN
Inventors: 黄海霖; 高竹青; 张百能; 李乐伟; 李竹新
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2018-10-30
Filing date: 2018-10-30
Publication date: 2020-05-08

Abstract

The present disclosure relates to an electronic device. The display panel comprises a display panel, a cover plate and a circuit board, wherein the circuit board, the display panel and the cover plate are sequentially arranged along the thickness direction of the electronic equipment, and at least one part of the circuit board protrudes out of the edge of the display panel in the direction vertical to the thickness direction; the sensor assembly is connected to the part, protruding out of the display panel, of the circuit board, and the surface, facing the cover plate, of the sensor assembly does not exceed the surface, facing the sensor assembly, of the display panel.

Description

Electronic device

Technical Field

The present disclosure relates to the field of terminal technologies, and in particular, to an electronic device.

Background

Currently, with the increasing requirements of users on the performance and the appearance of electronic devices, manufacturers need to improve the appearance of electronic devices while ensuring the performance as much as possible. In the related art, an ambient light sensor and a distance sensor are disposed on a top of the electronic device to detect an ambient light intensity and a separation distance between the electronic device and an obstacle, respectively.

However, in the internal structure of the electronic device, the ambient light sensor and the distance sensor are arranged in parallel with the display panel of the electronic device, and the ambient light sensor and the distance sensor occupy a certain space, so that the display panel is limited, and the screen occupation ratio of the electronic device is not improved.

Disclosure of Invention

The present disclosure provides an electronic device to solve the deficiencies in the related art.

According to an embodiment of the present disclosure, there is provided an electronic apparatus including: the display panel, the cover plate and the circuit board are sequentially arranged along the thickness direction of the electronic equipment, and at least one part of the circuit board protrudes out of the edge of the display panel in the direction perpendicular to the thickness direction;

the sensor assembly is connected to the part, protruding out of the display panel, of the circuit board, and the surface, facing the cover plate, of the sensor assembly does not exceed the surface, facing the sensor assembly, of the display panel.

Optionally, the method further includes:

and the light guide assembly is arranged along the thickness direction corresponding to the sensor assembly, and light penetrating through the cover plate is transmitted to the sensor assembly after being emitted from the light guide assembly.

Optionally, the sensor assembly includes a light detection unit, the light guide assembly includes a first light guide pillar, and a detection area corresponding to the light detection unit is covered on a surface of the first light guide pillar facing the sensor assembly;

the light detection unit is used for detecting light which passes through the cover plate and is conducted by the first light guide column in sequence.

Optionally, the sensor assembly includes a light detection unit, the light guide assembly includes a light uniformizing layer disposed corresponding to the light detection unit, and the light uniformizing layer is configured to convert direct light passing through the cover plate into diffuse reflection light to increase light incident to the light detection unit.

Optionally, the light transmittance of the light uniformizing layer is not less than 40%, and the atomization degree is not less than 60%.

Optionally, the light-equalizing layer includes at least one of:

light-equalizing membrane and light-equalizing ink film.

Optionally, the sensor assembly comprises a light detection unit and a light emission unit, and light emitted by the light emission unit is emitted out after passing through the light guide assembly and can sequentially penetrate through the cover plate and the light guide assembly after being shielded by the light detection unit.

Optionally, the light guide assembly includes a second light guide pillar, and an emission area corresponding to the light emission unit is covered on the surface of the second light guide pillar facing the sensor assembly.

Optionally, the light guide assembly includes a first light guide column, a second light guide column and a light shield layer, and the light shield layer wraps the circumferential side faces of the first light guide column and the second light guide column.

Optionally, the light guide assembly includes a first light guide pillar and a second light guide pillar, the cover plate includes a light-transmitting substrate and a first ink layer for shading, and the first ink layer includes an opening corresponding to the first light guide pillar and the second light guide pillar.

The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects:

according to the embodiment, the sensor assembly and the display panel are arranged in a staggered mode in the thickness direction in the disclosure, the sensor assembly and the display panel are avoided being arranged side by side, the area of the display panel is favorably increased, the screen occupation ratio of the electronic equipment is improved, and the attractiveness is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic cross-sectional view of an electronic apparatus in one of the related art.

Fig. 2 is a schematic structural diagram of an electronic device according to an exemplary embodiment.

Fig. 3 is a cross-sectional view a-a of the electronic device of fig. 2.

Fig. 4 is another a-a cross-sectional view of the electronic device of fig. 2.

Fig. 5 is a B-B cross-sectional view of the electronic device of fig. 2.

Fig. 6 is a schematic structural diagram of another electronic device shown in accordance with an example embodiment.

Fig. 7 is a B-B cross-sectional view of the electronic device of fig. 6.

Detailed Description

Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

It is to be understood that although the terms first, second, third, etc. may be used herein to describe various information, such information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "when … …" or "in response to a determination", depending on the context.

Fig. 1 is a schematic cross-sectional view of an electronic apparatus in one of the related art. As shown in fig. 1, the electronic device 100 can detect external light through the sensor 101, and in order to ensure the normal operation of the sensor 101, the distance between the sensor 101 and the cover plate 102 of the electronic device 100 is small, and may be only a few millimeters apart. Therefore, the sensor 101 and the display panel 103 of the electronic device 100 are arranged in parallel in the plane direction of the electronic device 100. However, since the sensor 101 occupies a certain space, the area corresponding to the sensor 101 on the top of the electronic device 100 cannot be used for displaying, and thus, a part of the non-display area exists. Since the sensor 101 is arranged side by side with the display panel 103, the area of the display panel 103 cannot be increased, and the screen ratio of the electronic device 100 cannot be further increased.

Therefore, as shown in fig. 2 to 4, the present disclosure provides an electronic device 200, and the electronic device 200 can reduce the area of the top non-display area and improve the screen occupation ratio compared with the conventional art. Specifically, it is assumed that the electronic apparatus 200 can detect the intensity of ambient light or the distance to an obstacle by emitting light or receiving light at a portion indicated by a dashed line in fig. 1.

As shown in fig. 2 to 4, the electronic device 200 may include a display panel 1, a cover plate 2, and a circuit board 3, the display panel 1, and the cover plate 2 are sequentially arranged along a thickness direction of the electronic device 200, the cover plate 2 faces the outside of the electronic device 200, the circuit board 3 is located inside the electronic device 200, and the display panel 1 can be protected by the cover plate 2. At least a portion of the circuit board 3 may protrude from the edge of the display panel 2 in a direction perpendicular to the thickness direction of the electronic device 200, i.e., in the a-a direction or the B-B direction in fig. 2, to provide a space for assembling other electronic components inside the other electronic device 200.

For example, the electronic device 200 may further include a sensor assembly 4, and the sensor assembly 4 may be electrically connected to a portion of the circuit board 3 protruding from an edge of the display panel 1. Further, the surface of the sensor assembly 4 facing the cover plate 2 does not exceed the surface of the sensor assembly 4 facing the display panel 1, so that in the thickness direction of the electronic device 200, an interval greater than or equal to zero exists between the sensor assembly 4 and the display panel 1, the sensor assembly 4 and the display panel 1 are staggered in the thickness direction, the sensor assembly 4 and the display panel 1 are prevented from being arranged side by side, the area of the display panel 1 is favorably increased, the screen occupation ratio of the electronic device 200 is increased, and the attractiveness is improved.

It should be noted that, in practical situations, the surface of the sensor assembly 4 facing the cover plate 2 may not be flat, so that the surface of the sensor assembly 4 facing the cover plate 2 does not exceed the surface of the display panel 1 facing the sensor assembly 4, and it can be understood that: the maximum cross-sectional area of the sensor assembly 4 corresponds to a surface not exceeding the display panel 1.

In the present embodiment, since there is a gap between the sensor assembly 4 and the display panel 1 in the thickness direction, and the cover plate 2, the circuit board 3 and the display panel 1 are arranged along the thickness direction of the electronic device 200, there is a gap between the cover plate 2 and the sensor assembly 4 which is not smaller than the thickness of the display panel 1. Therefore, in order to ensure that the light penetrating through the cover plate 2 can be transmitted to the sensor assembly 4, so that the electronic device 200 can perform corresponding functional operations according to the light detected by the sensor assembly 4, the electronic device 200 may further include a light guide assembly 5, the light guide assembly 5 may be disposed corresponding to the sensor assembly 4 along the thickness direction of the electronic device 200, and the light incident through the cover plate 2 may be transmitted to the sensor assembly 4 after being incident and emitted from the light guide assembly 5.

Further, because the light guide assembly 5 is located between the cover plate 1 and the sensor assembly 4, the light guide assembly can be arranged in parallel with the display panel 1, so that the cross section of the light guide assembly 5 can be adjusted to avoid space for the display panel 1, and the purposes of reducing the non-display edge width and improving the screen occupation ratio are achieved.

In each of the above embodiments, the sensor assembly 4 may be configured to acquire ambient light, and the electronic device 200 may determine current ambient light intensity according to the acquired ambient light, and adjust screen brightness according to the ambient light intensity, so as to avoid that a display area of the electronic device 200 is too dark or too bright. Or, the sensor assembly 4 may also be configured to emit a ranging light toward the outside of the electronic device 200, and receive a reflected light after the detection light is reflected by the obstacle, so that the electronic device 200 may obtain a separation distance between the electronic device 200 and the obstacle according to a time difference between a time when the ranging light is emitted and a time when the reflected light is received, and further may switch the on-off state of the screen according to the separation distance. Still alternatively, the sensor assembly 4 may have the functions of emitting the distance measuring light and receiving the reflected light while having the function of detecting the ambient light, which is not limited by the present disclosure.

To explain the technical solution of the present disclosure, the following describes the technical solution of the present disclosure in detail with the angle of the sensor assembly 4 having the function of detecting the ambient light and the angles of the sensor assembly having the functions of emitting the distance measuring light and receiving the reflected light, respectively.

Still referring to fig. 3, in an embodiment, the sensor assembly 4 may include a light detecting unit 41, the light detecting unit 41 may be configured to receive ambient light, and the light guiding assembly 5 may include a first light guiding pillar 51, and a surface of the first light guiding pillar 51 facing the sensor assembly 4 covers a detection area corresponding to the light detecting unit 41. Therefore, the external ambient light of the electronic device 200 can sequentially penetrate through the cover plate 2 and the first light guide pillar 51 and then enter the light detection unit 41 to be detected by the light detection unit 41, and further the controller of the electronic device 200 calculates the ambient light intensity according to the detected light and adjusts the screen brightness according to the obtained ambient light intensity.

Based on the characteristic requirement of the light energy detection of the light detecting unit 41, there is a range of light energy that can be detected by the light detecting unit, and the electronic device 200 can adjust the screen brightness corresponding to the light energy at each stage in the range of light energy. In the present application, since the light needs to be transmitted through the elongated first light guiding pillar 51, compared to the manner in which external light is directly incident on the sensor in the conventional scheme, when the electronic device 200 deflects relative to the light source, the total amount of light energy incident on the light detecting unit 41 may be smaller than the minimum light energy that can be detected by the light detecting unit 41, so that the electronic device cannot normally operate.

Therefore, in another embodiment, as shown in fig. 4, the light guide assembly 5 may include a light uniformizing layer 52, and the light uniformizing layer 52 is disposed corresponding to the display region corresponding to the light detecting unit 41 and may be located between the cover plate 2 and the first light guide pillar 51. When ambient light penetrates the cover plate 2 and is directly incident on the light-equalizing layer 52, the direct light is reflected on the light-equalizing layer 52 from all directions and is converted into diffuse reflection light. Therefore, when the included angle formed by the incident angle of the ambient light and the central line of the first light guide pillar 51 toward the outside of the electronic device 200 is large, the angle of the light emitted from the light equalizing layer 52 can be changed through the action of the light equalizing layer 52, so that the light can be incident to the light detecting unit 41 to the maximum extent, corresponding light energy is generated according to the detected light, and the accuracy of the screen brightness adjustment is ensured within the normal working range of the light detecting unit 41. When the included angle formed by the ambient light and the central line of the first light guide pillar 51 toward the outside of the electronic device 200 is small, that is, the light source substantially irradiates the light detection unit 41 directly, the ambient light can be softened by the light uniformizing layer 52, and the situation that the light detection unit 41 cannot work normally due to too high energy incident on the light uniformizing layer is avoided.

For example, assuming that the ambient light is located in a conical range forming a preset included angle with the first light guide pillar 51, after the ambient light sequentially passes through the cover plate 2, the light equalizing layer 52 and the first light guide pillar 51, the amount of light incident to the light detecting unit 41 exceeds 50% of the incident amount of light, it is considered that the light detecting unit 41 can detect the ambient light, and the detection result is accurate, the preset included angle may be 30 °, 40 °, 45 °, 50 °, and the like, which is not limited by the present disclosure.

Further, in order to ensure that the ambient light can penetrate through the light uniformizing layer 52 and can be converted into diffuse reflection light, the transmittance of the light uniformizing layer 52 is not lower than 40%, and the atomization degree is not lower than 60%, so that the incident ambient light is softened. The light-equalizing layer 52 may include a light-equalizing film, which may be subsequently fixed by means of bonding; alternatively, the light-equalizing layer 52 may comprise a light-equalizing ink film, which may be formed by brushing, spraying, printing, and the like, without limitation of the present disclosure.

Of course, in another embodiment, the light guide assembly 5 may also include the light uniformizing layer 52 instead of the first light guide rod 51, so that the incident ambient light can be converted into the diffuse reflection light through the light uniformizing layer 52, the amount of light incident to the light detecting unit 41 is increased, and the detection accuracy when the electronic device 200 is tilted is improved.

When the sensor assembly 4 is used for distance measurement, as shown in fig. 5, the sensor assembly 4 may include a light detecting unit 41 and a light emitting unit 42. Wherein the light emitting unit 42 may include a visible light emitting unit, and correspondingly, the light detecting unit 41 may include a visible light receiving unit. Or the light emitting unit 41 may include a laser emitting unit, and correspondingly, the light detecting unit 41 may include a laser receiving unit, which may be designed according to the needs, and the disclosure is not limited thereto.

The distance measuring light emitted from the light emitting unit 42 can be transmitted through the cover plate 2 after being transmitted by the light guide assembly 5. The reflected light of the distance measuring light reflected by the external obstacle can be received by the light detecting unit 41 after sequentially passing through the cover plate 2 and the light guide assembly 5, and the electronic device 200 can obtain the spacing distance between the screen of the electronic device 200 and the obstacle according to the difference between the time of sending the distance measuring light and the time of receiving the reflected light.

In this embodiment, the area of the light guide element 5 corresponding to the light detection unit 41 may refer to the embodiment shown in fig. 3 and 4, and is not described herein again. The light guide member 5 may include a second light guide 53 disposed corresponding to the light emitting unit 42, and the surface of the second light guide 53 facing the sensor member 4 is covered with the light emitting unit 42. The light emitted by the light emitting unit 42 can be collected by the light collecting function of the second light guide column 53, so that the light emitted from the second light guide column 53 can be emitted substantially right in front of the light emitting unit 42.

It should be noted that: in other embodiments, the light detection unit 41 may include a distance detection unit and an ambient light detection unit. The first light guide column 51 covers the detection regions corresponding to the distance detection unit and the ambient light detection unit on the surface facing the sensor unit 4, and guides light by the first light guide column 51. Alternatively, in some embodiments, the light equalizing layer 52 covers the detection areas corresponding to the distance detection unit and the ambient light detection unit at the same time, which is not limited herein. Wherein the distance detection unit can be used in cooperation with the light emission unit 42 for distance detection.

In each of the above embodiments, still referring to fig. 4 and 5, the light guide assembly 5 may further include a light shielding layer 54, and the light shielding layer 54 may wrap the circumferential side surfaces of the first light guide pillar 51 and the second light guide pillar 53, so as to prevent the light generated by the display panel 1 from being absorbed into the first light guide pillar 51 and the second light guide pillar 53, which affects the detection accuracy of the sensor assembly 4.

In this embodiment, the cover plate 2 may include a transparent substrate 21 and a first ink layer 22 for shading, the first ink layer 22 is formed on the transparent substrate 21, and the first ink layer 22 includes an opening 23 corresponding to the first light guide pillar 51 and the second light guide pillar 53, so as to prevent the first ink layer 22 from shading the infrared light of the ambient light. In an embodiment, as shown in fig. 5, the first light guide pillar 51 and the second light guide pillar 53 respectively correspond to one opening 23, or in another embodiment, as shown in fig. 6 and 7, the first light guide pillar 51 and the third light guide pillar 53 correspond to the same opening 23, which is not limited in the disclosure.

Further, the light guide assembly 5 may further include a second ink layer 55 disposed corresponding to the opening 13, and the second ink layer 55 may adopt the same color as the first ink layer 22, so as to ensure the consistency of the electronic device 200 in appearance. The second ink layer 55 has a visible transmittance and a red-infrared light transmittance of a predetermined degree, so as to avoid affecting the ambient light intensity detection function and the distance detection function of the electronic device 200. For example, the visible light transmittance of second ink layer 22 may be 5% to 20%, and the infrared light transmittance may be above 85%, which is not limited by this disclosure.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. An electronic device, comprising: the display panel, the cover plate and the circuit board are sequentially arranged along the thickness direction of the electronic equipment, and at least one part of the circuit board protrudes out of the edge of the display panel in the direction perpendicular to the thickness direction;

2. The electronic device of claim 1, further comprising:

3. The electronic device of claim 2, wherein the sensor assembly comprises a light detection unit, the light guide assembly comprises a first light guide pillar, and a surface of the first light guide pillar facing the sensor assembly covers a detection area corresponding to the light detection unit;

4. The electronic device of claim 2, wherein the sensor assembly comprises a light detection unit, and the light guide assembly comprises a light uniformizing layer disposed corresponding to the light detection unit, the light uniformizing layer being configured to convert direct light transmitted through the cover plate into diffuse reflected light to increase light incident on the light detection unit.

5. The electronic device of claim 4, wherein the light-homogenizing layer has a light transmittance of not less than 40% and a degree of fogging of not less than 60%.

6. The electronic device of claim 4, wherein the light homogenizing layer comprises at least one of:

light-equalizing membrane and light-equalizing ink film.

7. The electronic device of claim 2, wherein the sensor assembly comprises a light detecting unit and a light emitting unit, wherein the light emitted from the light emitting unit exits through the light guide assembly, and can be received by the light detecting unit through the cover plate and the light guide assembly in sequence after being shielded.

8. The electronic device of claim 7, wherein the light guide assembly comprises a second light guide pillar, and a surface of the second light guide pillar facing the sensor assembly covers an emission area corresponding to the light emission unit.

9. The electronic device of claim 2, wherein the light guide assembly comprises a first light guide pillar, a second light guide pillar, and a light shield layer that wraps circumferential sides of the first light guide pillar and the second light guide pillar.

10. The electronic device of claim 2, wherein the light guide assembly comprises a first light guide pillar and a second light guide pillar, the cover plate comprises a light-transmissive substrate and a first ink layer for blocking light, and the first ink layer comprises an opening corresponding to the first light guide pillar and the second light guide pillar.