CN112688721A - Flexible display screen, flexible display device and electronic equipment - Google Patents
Flexible display screen, flexible display device and electronic equipment Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The embodiment of the application provides a flexible display screen, a flexible display device and electronic equipment. The flexible display screen includes: the antenna unit comprises a plurality of NFC coils distributed in different areas of the flexible display screen; the deformation detection unit is used for detecting the deformation amount of the region where each NFC coil is located; and the control unit is used for controlling the NFC coil which meets the preset deformation condition to be in a working state and controlling the NFC coil which does not meet the preset deformation condition to be in a non-working state according to the deformation of the area where the NFC coil is located. The flexible display screen, the flexible display device and the electronic equipment provided by the embodiment of the application can avoid the influence of the deformation of the flexible display screen on the NFC communication performance.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to a flexible display screen, a flexible display device and electronic equipment.
Background
With the continuous development and improvement of display technologies, at present, Near Field Communication (NFC) is widely applied to electronic devices, and in the electronic devices provided with flexible display screens, NFC coils may also be embedded in the flexible display screens to implement Near Field Communication.
However, in the using process, because the bending position of the flexible display screen is not fixed, the screen is bent to drive the shape of the NFC coil to change, so that the communication performance is affected.
Disclosure of Invention
The embodiment of the application provides a flexible display screen, a flexible display device and electronic equipment, and the influence of the deformation of the flexible display screen on the near field communication performance can be avoided.
In a first aspect, an embodiment of the present application provides a flexible display screen, including:
the antenna unit comprises a plurality of NFC coils distributed in different areas of the flexible display screen;
the deformation detection unit is used for detecting the deformation amount of the region where each NFC coil is located;
and the control unit is used for controlling the NFC coil which meets the preset deformation condition to be in a working state and controlling the NFC coil which does not meet the preset deformation condition to be in a non-working state according to the deformation of the area where the NFC coil is located.
In a second aspect, an embodiment of the present application provides a flexible display device, including the flexible display screen provided in the first aspect of the embodiment of the present application.
In a third aspect, an embodiment of the present application provides an electronic device including the flexible display device provided in the second aspect of the embodiment of the present application.
Compared with the prior art, the embodiment of the application provides a flexible display screen, flexible display device and electronic equipment, according to the deformation quantity in a plurality of NFC coil place regions, the NFC coil that satisfies preset deformation quantity condition among a plurality of NFC coils is controlled to be in operating condition, under the flexible display screen is in the state of buckling the condition, select suitable NFC coil to work, the NFC coil shape that is in operating condition is guaranteed to level and smooth, avoid the deformation of flexible display screen to cause the influence to NFC communication performance.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a flexible display screen provided in an embodiment of the present application;
FIG. 2 is a schematic structural diagram of another flexible display provided in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of another flexible display provided by an embodiment of the present application;
fig. 4 is a schematic structural diagram of an NFC coil provided in an embodiment of the present application;
fig. 5 is a schematic structural diagram of another NFC coil provided in an embodiment of the present application;
FIG. 6 is a schematic structural diagram of a deformation detection unit provided in an embodiment of the present application;
fig. 7 is a schematic flowchart of a flexible display control method provided in an embodiment of the present application;
fig. 8 is a schematic flowchart of another flexible display control method provided in an embodiment of the present application.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, numerous specific details are set forth in order to provide a thorough understanding of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof. The present application is in no way limited to any specific configuration and algorithm set forth below, but rather covers any modification, replacement or improvement of elements, components or algorithms without departing from the spirit of the present application. In the drawings and the following description, well-known structures and techniques are not shown in order to avoid unnecessarily obscuring the present application.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
With the continuous development and improvement of display technologies, at present, Near Field Communication (NFC) is widely applied to electronic devices, and in the electronic devices provided with flexible display screens, NFC coils may also be embedded in the flexible display screens to implement Near Field Communication.
As shown in fig. 1, in the using process, since the bending position of the flexible display screen is not fixed, if the bending position is an NFC region, the coil is deformed, thereby affecting the communication performance, and causing delay and inconvenience in the use of the NFC function.
In view of the above problem, as shown in fig. 2, an embodiment of the present application provides a flexible display screen, including:
the antenna unit 201 comprises a plurality of NFC coils distributed in different areas of the flexible display screen;
a deformation detection unit 202, configured to detect a deformation amount of an area where each NFC coil is located;
and the control unit 203 is configured to control the NFC coil that meets the preset deformation condition to be in a working state and the NFC coil that does not meet the preset deformation condition to be in a non-working state according to the deformation of the region where the NFC coil is located.
In some embodiments, as shown in fig. 3, an antenna module is disposed on the flexible display screen, and the flexible display screen includes three NFC coils, where a first NFC coil is disposed in a middle position, and both upper and lower positions are second NFC coils; the screen is also provided with a deformation detection unit which comprises three detection subunits, the detection subunits correspond to the NFC coils one by one, and the detection subunits and the corresponding NFC coils are positioned on the same bending axis of the flexible display screen; and the screen is also provided with a control unit for controlling the working state of each NFC coil in the antenna unit. When the control unit detects that the bending area of the flexible display screen is the first NFC position, the first NFC coil is controlled to be closed, and the second NFC coil with the minimum bending degree works to avoid deformation of the coil on the flexible display screen, so that the problem of communication performance is influenced.
In some embodiments, the antenna unit further comprises a plurality of switch assemblies;
each switch component is electrically connected with the corresponding NFC coil, and the control unit is used for controlling the switch component electrically connected with the NFC coil meeting the preset deformation condition to be switched on and the switch component electrically connected with the NFC coil not meeting the preset deformation condition to be switched off.
As shown in fig. 4, in some embodiments, each NFC coil is provided with a switch component, so that the control unit controls the operating state of each NFC coil by controlling on and off of the switch component according to the deformation amount of the area where each NFC coil is located.
According to the flexible display screen provided by the embodiment of the application, the NFC coils meeting the preset deformation condition in the plurality of NFC coils are controlled to be in the working state according to the deformation of the area where the plurality of NFC coils are located. Under the flexible display screen is in the state condition of buckling, select suitable NFC coil to carry out work, guarantee that the NFC coil shape that is in operating condition is level and smooth, avoid the deformation of flexible display screen to cause the influence to NFC communication performance.
In some embodiments, the control unit is a control chip IC, each NFC coil is connected to the control chip through two signal lines, as shown in fig. 5, a first sub-NFC coil is connected to the control chip through a signal line 1 and a signal line 2, a main NFC coil is connected to the control chip through a signal line 3 and a signal line 4, and a second sub-NFC coil is connected to the control chip through a signal line 5 and a signal line 6, so that the control unit controls the operating state of each NFC coil by controlling the corresponding signal line according to the deformation amount of the region where each NFC coil is located.
In some embodiments, the control unit is a control chip, and the control chip is configured to generate a control signal, where the control signal is used to control an NFC coil that satisfies a preset deformation condition among the plurality of NFC coils to be in an operating state, and an NFC coil that does not satisfy the preset deformation condition to be in a non-operating state.
The flexible display screen that this application embodiment provided, the control unit can be control chip, control chip is according to the deformation volume in a plurality of NFC coils place region, generate control signal, a working condition for controlling a plurality of NFC coils, which is in working condition in a plurality of coils promptly, be decided by the deformation volume in its place region, and the deformation volume has reflected the regional and the degree of buckling of flexible display screen, thereby flexible display screen is because buckling and leading to the coil to take place deformation, then influence communication performance's problem.
In some embodiments, the deformation detection unit includes a plurality of detection subunits, and the detection subunits correspond to the NFC coils one to one;
the detection subunit and the corresponding NFC coil are located on the same bending axis of the flexible display screen.
In some embodiments, the detection subunit includes a first electrode layer, a piezoelectric material layer, and a second electrode layer, which are sequentially stacked;
the first electrode layer is connected with the common voltage signal and the control unit;
the second electrode layer is connected with the control unit.
As shown in fig. 6, in some embodiments, the deformation detecting unit includes a first electrode layer 601, a piezoelectric material layer 602, and a second electrode layer 603, and in case that the area where any detecting subunit is located is deformed, the piezoelectric material layer collects charges on the end surface close to the first electrode layer to generate a first charge amount, and collects charges on the end surface close to the second electrode layer to generate a second charge amount, and the first electrode layer and the second electrode layer respectively send the first charge amount and the second charge amount to the control unit, so that the control unit detects the deformation amount of the area where any detecting subunit is located.
In some embodiments, the antenna unit includes a first NFC coil and a second NFC coil, where the first NFC coil is an NFC coil in an operating state by default when the NFC function of the antenna unit is turned on; the second NFC coil is an NFC coil in a default non-operating state when the NFC function of the antenna unit is turned on.
In some embodiments, the antenna unit includes a first NFC coil and all others are second NFC coils, and when the NFC function is turned on, one and only one of the NFC coils is in an operating state. When the control unit detects that the bending area of the flexible display screen is the first NFC position, the first NFC coil is controlled to be closed, and the second NFC coil with the minimum bending degree works to avoid deformation of the coil on the flexible display screen, so that the problem of communication performance is influenced.
In some embodiments, the control unit is specifically configured to:
controlling the first NFC coil to keep a working state under the condition that the deformation amount of the area where the first NFC coil is located is smaller than a preset threshold value;
controlling the first NFC coil to keep a working state under the condition that the deformation amount of the area where the first NFC coil is located is larger than a preset threshold value and the deformation amount of the area where any second NFC coil in the plurality of NFC coils is located is the maximum value;
and under the condition that the deformation amount of the area where the first NFC coil is located is larger than a preset threshold value and the deformation amount of the area where the first NFC coil is located in the plurality of NFC coils is the maximum value, controlling the first NFC coil to be in a non-working state and controlling the second NFC coil, where the deformation amount of the area is the minimum, to be in a working state.
It should be noted that the existence of the preset deformation threshold may avoid frequent switching of the multiple NFC coils in the antenna unit, that is, within the preset deformation threshold, the bending degree is determined to be small, which may not sufficiently affect the communication performance of the NFC coils.
In some embodiments, only one NFC coil in the antenna unit is in operation.
It should be noted that, in order to prevent interference from being generated between multiple NFC coils in the antenna unit, in the embodiment of the present application, when the NFC function is turned on, only one NFC coil is in an operating state.
For the sake of understanding, the flexible display screen provided by the embodiments of the present application is described in detail below with reference to the accompanying drawings and specific embodiments.
In some embodiments, controlling each NFC coil to be in an active/inactive state can be achieved by at least two ways:
a) each NFC coil is provided with a switch component, so that the control unit controls the working state of each NFC coil by controlling the on and off of the switch component according to the deformation of the area where each NFC coil is located;
b) each NFC coil is connected with the control chip through a signal wire, and the control unit controls the working state of each NFC coil through controlling the corresponding signal wire.
In some embodiments, when each NFC coil is connected to the control unit through the switch component, the process of controlling the antenna unit by the flexible display screen provided in the embodiments of the present application includes the following steps:
as shown in fig. 7, in S701, when the flexible display screen is in a bent state, the NFC function of the antenna unit is turned on, and the switch component of the first NFC coil is turned on.
S702, detecting the deformation amount of the region where each NFC coil is located through a deformation detection unit.
Specifically, the deformation detection unit comprises a plurality of sub-detection units, and each sub-detection unit corresponds to the NFC coil located on the same bending axis. The first electrode layer and the second electrode layer in the target detection subunit respectively send the first electric charge amount and the second electric charge amount gathered on the end surfaces thereof to the control unit, so that the control unit determines the deformation amount of the target detection subunit according to the difference between the first electric charge amount and the second electric charge amount.
And S703, judging whether the deformation amount of the area where the first NFC coil is located is within a preset threshold value, if so, executing S707, and otherwise, executing S704.
Specifically, when the deformation amount of the area where the first NFC coil is located is within the preset threshold of the deformation amount, it indicates that the bending degree of the area where the first NFC coil is located is very small, and the communication function of the NFC coil is not affected, so that the first NFC coil is continuously placed in the working state.
S704, determining the area with the largest deformation amount as the bending area of the flexible display screen according to the deformation amount of the area where each NFC coil is located.
In particular, since the bending directions of the flexible display are uniform, that is, the bending axes of the flexible display are horizontally distributed. Therefore, there are no more areas with the largest deformation amount, and the area with the largest deformation amount is the area with the largest bending degree in the flexible display screen, and is determined as the bending area of the flexible display screen.
S705, determining whether the bending region is the region where the first NFC coil is located, if so, executing S706, otherwise, executing S707.
And S706, controlling the switch component of the second NFC coil with the minimum deformation quantity in the area to be switched on, and controlling the switch component of the first NFC coil to be switched off.
Specifically, if the bending region is the region where the first NFC coil is located, the communication performance of the first NFC coil is affected, and therefore the second NFC coil with the smallest bending degree, that is, the smallest deformation amount, is selected from the plurality of second NFC coils, and is controlled to be in the operating state, and meanwhile, the first NFC coil is controlled to be in the non-operating state.
And S707, controlling the first NFC coil to continue working.
In some embodiments, when each NFC coil is connected to the control unit through a signal line, the flexible display screen provided in the embodiments of the present application may perform a control process on the antenna unit through the following steps:
the antenna unit in this embodiment includes three NFC coils, and the signal line that one of them first NFC coil is connected with the control unit is third signal line and fourth signal line, and the signal line that the second NFC coil that is located first NFC coil top is connected with the control unit is first signal line and second signal line, and the signal line that the second NFC coil that is located first NFC coil bottom is connected with the control unit is fifth signal line and sixth signal line.
As shown in fig. 8, in S801, when the flexible display screen is in a bent state, the NFC function of the antenna unit is turned on, the third signal line and the fourth signal line are opened, and the first NFC coil is in a working state.
S802, detecting the deformation amount of the region where each NFC coil is located through a deformation detection unit.
Specifically, the deformation detection unit comprises a plurality of sub-detection units, and each sub-detection unit corresponds to the NFC coil located on the same bending axis. The first electrode layer and the second electrode layer in the target detection subunit respectively send the first electric charge amount and the second electric charge amount gathered on the end surfaces thereof to the control unit, so that the control unit determines the deformation amount of the target detection subunit according to the difference between the first electric charge amount and the second electric charge amount.
S803, determining whether the deformation amount of the area where the first NFC coil is located is within a preset threshold, if so, performing S807, otherwise, performing S804.
Specifically, when the deformation amount of the area where the first NFC coil is located is within the preset threshold of the deformation amount, it indicates that the bending degree of the area where the first NFC coil is located is very small, and the communication function of the NFC coil is not affected, so that the first NFC coil is continuously placed in the working state.
S804, determining the area with the largest deformation amount as the bending area of the flexible display screen according to the deformation amount of the area where each NFC coil is located.
In particular, since the bending directions of the flexible display are uniform, that is, the bending axes of the flexible display are horizontally distributed. Therefore, there are no more areas with the largest deformation amount, and the area with the largest deformation amount is the area with the largest bending degree in the flexible display screen, and is determined as the bending area of the flexible display screen.
S805, determining whether the bending region is the region where the first NFC coil is located, if yes, performing S806, otherwise performing S807.
And S806, controlling the conduction of two signal wires corresponding to the second NFC coil with the minimum deformation in the area, and controlling the closing of the first signal wire and the second signal wire corresponding to the first NFC coil.
Specifically, if the bending region is the region where the first NFC coil is located, the communication performance of the first NFC coil is affected, and therefore the second NFC coil with the smallest bending degree, that is, the smallest deformation amount, is selected from the plurality of second NFC coils, and is controlled to be in the operating state, and meanwhile, the first NFC coil is controlled to be in the non-operating state.
And S807, controlling the first NFC coil to continue working.
Based on the same inventive concept, the embodiment of the present application provides a flexible display device, which includes the flexible display screen provided by the embodiment of the present application.
An embodiment of the present application further provides an electronic device including the flexible display device provided in any of the above embodiments of the present application.
In summary, an embodiment of the present application provides an electronic device, which controls, according to a deformation amount of an area where a plurality of NFC coils are located, an NFC coil that meets a preset deformation amount condition among the plurality of NFC coils to be in a working state. Under the flexible display screen is in the state condition of buckling, select suitable NFC coil to carry out work, guarantee that the NFC coil shape that is in operating condition is level and smooth, avoid the deformation of flexible display screen to cause the influence to NFC communication performance.
It should be clear that the embodiments in this specification are described in a progressive manner, and the same or similar parts in the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. For the display compensation method embodiment and the display device embodiment, the relevant points can be referred to the description part of the display panel embodiment and the display compensation circuit embodiment. The present application is not limited to the particular steps and structures described above and shown in the drawings. Those skilled in the art may make various changes, modifications and additions or change the order between the steps after appreciating the spirit of the present application. Also, a detailed description of known process techniques is omitted herein for the sake of brevity.
It will be appreciated by persons skilled in the art that the above embodiments are illustrative and not restrictive. Different features which are present in different embodiments may be combined to advantage. Other variations to the disclosed embodiments can be understood and effected by those skilled in the art upon studying the drawings, the specification, and the claims. In the claims, the term "comprising" does not exclude other means or steps; the indefinite article "a" does not exclude a plurality; the terms "first" and "second" are used to denote a name and not to denote any particular order. Any reference signs in the claims shall not be construed as limiting the scope. The functions of the various parts appearing in the claims may be implemented by a single hardware or software module. The mere fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage.
Claims (10)
1. A flexible display screen, comprising:
the antenna unit comprises a plurality of NFC coils distributed in different areas of the flexible display screen;
the deformation detection unit is used for detecting the deformation amount of the region where each NFC coil is located;
and the control unit is used for controlling the NFC coil which meets the preset deformation condition to be in a working state and controlling the NFC coil which does not meet the preset deformation condition to be in a non-working state according to the deformation of the area where the NFC coil is located.
2. The flexible display of claim 1, wherein the antenna unit further comprises a plurality of switch assemblies;
each switch component is electrically connected with the corresponding NFC coil, and the control unit is used for controlling the switch component which is electrically connected with the NFC coil and meets the preset deformation condition to be switched on and the switch component which is electrically connected with the NFC coil and does not meet the preset deformation condition to be switched off.
3. Flexible display screen according to claim 1,
the control unit is a control chip, the control chip is used for generating a control signal, the control signal is used for controlling the NFC coils meeting the preset deformation condition in the plurality of NFC coils to be in a working state, and the NFC coils not meeting the preset deformation condition are in a non-working state.
4. Flexible display screen according to claim 1,
the deformation detection unit comprises a plurality of detection subunits, and the detection subunits correspond to the NFC coils one by one;
the detection subunit and the corresponding NFC coil are located on the same bending axis of the flexible display screen.
5. Flexible display screen according to claim 4,
the detection subunit comprises a first electrode layer, a piezoelectric material layer and a second electrode layer which are sequentially stacked;
the first electrode layer is connected with a common voltage signal and the control unit;
the second electrode layer is connected with the control unit.
6. Flexible display screen according to claim 1,
the antenna unit comprises a first NFC coil and a second NFC coil, wherein the first NFC coil is an NFC coil in a default working state when an NFC function of the antenna unit is started; and the second NFC coil is an NFC coil which is in a non-working state by default when the NFC function of the antenna unit is started.
7. The flexible display screen of claim 6, wherein the control unit is specifically configured to:
controlling the first NFC coil to keep a working state under the condition that the deformation amount of the area where the first NFC coil is located is smaller than a preset threshold value;
controlling the first NFC coil to keep a working state under the condition that the deformation amount of the area where the first NFC coil is located is larger than a preset threshold value and the deformation amount of the area where any one second NFC coil in the plurality of NFC coils is located is the maximum value;
and controlling the first NFC coil to be in a non-working state and controlling the second NFC coil with the minimum deformation amount of the area to be in a working state under the condition that the deformation amount of the area where the first NFC coil is located is larger than a preset threshold value and the deformation amount of the area where the first NFC coil is located in the plurality of NFC coils is the maximum value.
8. Flexible display screen according to claim 1,
only one NFC coil in the antenna unit is in an operating state.
9. A flexible display device comprising the flexible display screen according to any one of claims 1 to 8.
10. An electronic device characterized by comprising the flexible display device according to claim 9.
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| CN202011603947.3A CN112688721B (en) | 2020-12-29 | 2020-12-29 | Flexible display screen, flexible display device and electronic equipment |
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Cited By (1)
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| WO2022241730A1 (en) * | 2021-05-20 | 2022-11-24 | 京东方科技集团股份有限公司 | Foldable display device and fabrication method therefor |
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