CN114664237B

CN114664237B - Display device and driving method thereof

Info

Publication number: CN114664237B
Application number: CN202210289170.0A
Authority: CN
Inventors: 张蒙蒙; 杨帅; 匡建; 周星耀; 黄静
Original assignee: Wuhan Tianma Microelectronics Co Ltd
Current assignee: Wuhan Tianma Microelectronics Co Ltd
Priority date: 2022-03-22
Filing date: 2022-03-22
Publication date: 2023-07-04
Anticipated expiration: 2042-03-22
Also published as: CN114664237A

Abstract

The invention discloses a display device and a driving method thereof, belonging to the technical field of display, wherein the display device comprises a display panel and a wireless charging assembly, and the display panel comprises a driving circuit and a plurality of display units; the driving circuit comprises a display driving circuit and a wireless charging driving circuit, the display driving circuit is electrically connected with the display unit, and the wireless charging driving circuit is electrically connected with the wireless charging assembly; in a first period, the display driving circuit provides a display driving signal to the display unit; in a second time period, the wireless charging driving circuit provides a charging signal to the wireless charging assembly; the first time period does not overlap with the second time period. The driving method is used for driving the display device to work. The invention can avoid the interference of the wireless charging assembly to the display effect of the display panel during working, avoid the abnormal display phenomenon of water ripple of the display picture and effectively improve the display quality of the display device.

Description

Display device and driving method thereof

Technical Field

The present invention relates to the field of display technologies, and more particularly, to a display device and a driving method thereof.

Background

Wireless charging technology is derived from wireless power transfer technology. Wireless charging, also known as inductive charging, or non-contact inductive charging, uses near field induction, i.e., inductive coupling, to transfer energy from a power supply device (e.g., a charger) to a power consumer (e.g., an electronic device with a display function such as a mobile phone, a computer, etc.) so that the power consumer uses the received energy to charge a battery while providing for its own operation. Because the power supply equipment and the power utilization device transmit energy in an inductive coupling mode, the power supply equipment and the power utilization device are not connected by wires, the wireless charging technology improves the charging safety on one hand, and the power utilization device is not constrained by a tangible wire on the other hand, so that the convenience of use of a user is improved. Currently, wireless charging technology has been increasingly used in various electronic display devices (e.g., mobile phones, computers, etc.).

However, in some cases, the wireless charging structure from within the electronic device may interfere with the display during operation of the display device, resulting in undesirable display distortion, for example, the wireless charging structure may be operatively coupled to the data line by an interference signal, such that the data voltage transmitted on the data line fluctuates, resulting in a display screen displaying anomalies in the form of water waves. The improvement method generally adopted in the related art is to enhance the driving capability of the data line so that the interference of the wireless charging signal becomes weak, but the improvement method brings about the problem of increased power consumption. In the related art, a shielding structure is additionally arranged in the display device so as to shield the displayed interference signal as much as possible during wireless charging, and the improvement method not only can increase the structure of the display device and is unfavorable for lightening and thinning the module, but also has an unsatisfactory shielding effect, and the interference signal generated during wireless charging still has a certain influence on the display.

Therefore, the display device and the driving method thereof, which can effectively improve the problem that the display screen is interfered during wireless charging and the abnormal display of water ripple occurs, can avoid influencing the structure of the display device and avoiding increasing the power consumption of the device, are technical problems to be solved by the person skilled in the art.

Disclosure of Invention

In view of the above, the present invention provides a display device and a driving method thereof, so as to solve the problem that the display device in the prior art is easy to display abnormal during wireless charging and has poor display effect on the basis of not increasing the structure of the display device and the power consumption of the device as much as possible.

The invention discloses a display device, comprising: the wireless charging device comprises a display panel and a wireless charging assembly, wherein the display panel comprises a driving circuit and a plurality of display units; the driving circuit comprises a display driving circuit and a wireless charging driving circuit, the display driving circuit is electrically connected with the display unit, and the wireless charging driving circuit is electrically connected with the wireless charging assembly; in a first period, the display driving circuit provides a display driving signal to the display unit; in a second time period, the wireless charging driving circuit provides a charging signal to the wireless charging assembly; the first time period does not overlap with the second time period.

Based on the same inventive concept, the invention also discloses a driving method of the display device, which is used for driving the display device to work; in the driving method, the working phase of the display device at least comprises a first time period and a second time period; in a first time period, the display driving circuit provides a display driving signal for the display unit so that the display device displays a picture; in a second time period, the wireless charging driving circuit provides a charging signal for the wireless charging assembly so that the display device is charged; the first time period does not overlap with the second time period.

Compared with the prior art, the display device and the driving method thereof provided by the invention have the advantages that at least the following effects are realized:

the display device comprises a display panel and a wireless charging assembly, wherein the wireless charging assembly can be used for providing a charging endurance function for the display panel, the display panel comprises a driving circuit and a plurality of display units, the driving circuit at least can comprise a display driving circuit and a wireless charging driving circuit, the display driving circuit is electrically connected with the display units, the wireless charging driving circuit is electrically connected with the wireless charging assembly, the working stage of the display device at least can comprise a first time period and a second time period, the first time period can be understood as a driving stage of the display panel for realizing the display function, and the second time period can be understood as a charging stage of the display panel for realizing the wireless charging function. According to the invention, the time period for the display driving circuit to provide the display driving signal for the display unit and the time period for the wireless charging driving circuit to provide the charging signal for the wireless charging assembly are not overlapped, so that the interference of the wireless charging assembly on the display effect of the display panel during operation can be avoided, the coupling of the wireless charging pulse signal and the data voltage signal transmitted to the data line can be avoided, the fluctuation of the data voltage signal written to the data line can be avoided, any other shielding structure is not required to be additionally arranged in the display device, the power consumption of equipment is not required to be increased, the abnormal display phenomenon of water ripple of a display picture can be avoided only through the simple time sequence control of the display driving circuit and the wireless charging driving circuit in the driving circuit, and the display quality of the display device can be effectively improved.

Of course, it is not necessary for any one product to practice the invention to achieve all of the technical effects described above at the same time.

Other features of the present invention and its advantages will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.

Drawings

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

Fig. 1 is a schematic plan view of a display device according to an embodiment of the present invention;

FIG. 2 is a timing diagram of the display device of FIG. 1 in operation;

fig. 3 is a schematic plan view of another display device according to an embodiment of the present invention;

FIG. 4 is another timing diagram of the display device of FIG. 1 in operation;

fig. 5 is a schematic plan view of another display device according to an embodiment of the present invention;

FIG. 6 is a timing diagram of the display device of FIG. 5 in operation;

fig. 7 is a schematic plan view of another display device according to an embodiment of the present invention;

fig. 8 is a schematic plan view of another display device according to an embodiment of the present invention;

FIG. 9 is a schematic view of the cross-sectional structure in the direction A-A' of FIG. 8;

Fig. 10 is a schematic plan view of another display device according to an embodiment of the present invention;

FIG. 11 is a schematic cross-sectional view of the display device of FIG. 10;

fig. 12 is a schematic plan view of another display device according to an embodiment of the present invention;

FIG. 13 is a schematic cross-sectional view of the display device of FIG. 12;

FIG. 14 is a schematic diagram showing the electrical connection structure of the timing control unit and the detection unit of the driving circuit in FIG. 1;

FIG. 15 is a schematic view of a configuration of the selector switch of FIG. 14;

FIG. 16 is a schematic view of another configuration of the selector switch of FIG. 14;

fig. 17 is a flowchart of a driving method of a display device according to an embodiment of the present invention;

fig. 18 is another flow chart of a driving method of a display device according to an embodiment of the present invention.

Detailed Description

Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the invention, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

Referring to fig. 1 and 2, fig. 1 is a schematic plan view of a display device according to an embodiment of the present invention, fig. 2 is a timing diagram of the display device in fig. 1 when in operation (it can be understood that, for clarity of illustrating a structure of a wireless charging assembly in this embodiment, fig. 1 is filled with transparency), a display device 000 according to this embodiment includes: a display panel 00 and a wireless charging assembly 20, the display panel 00 including a driving circuit 30 and a plurality of display units 10;

the driving circuit 30 includes a display driving circuit 301 and a wireless charging driving circuit 302, the display driving circuit 301 is electrically connected with the display unit 10, and the wireless charging driving circuit 302 is electrically connected with the wireless charging assembly 20; in the first period T1, the display driving circuit 301 supplies a display driving signal to the display unit 10; in a second period T2, the wireless charging drive circuit 302 provides a charging signal to the wireless charging assembly 20;

The first period T1 and the second period T2 do not overlap.

Specifically, the display device 000 provided in this embodiment includes a display panel 00 and a wireless charging assembly 20, where the wireless charging assembly 20 may be used to provide a charging function for the display panel 00, alternatively, the wireless charging assembly 20 may be an inductance coil structure or may be another structure capable of implementing a wireless charging function, and the wireless charging assembly 20 may transmit energy to the display panel 00 by using an inductive coupling effect, so that the display panel 00 uses the received energy for its own use, such as displaying by using electric energy provided by the wireless charging assembly 20. Alternatively, the display panel 00 may be a liquid crystal display panel, an organic light emitting diode display panel, or a micro light emitting diode display panel, and other types of display panels, and the type of the display panel 00 is not particularly limited in this embodiment, and in a specific implementation, the type of the display panel 00 may be selected according to actual needs. It is understood that, according to the type of display panel selected in the implementation, the specific structure of the display panel 00 of the present embodiment can be understood with reference to the structure of the display panel of the same type in the related art, and the description of the present embodiment is omitted here. The display panel 00 of the present embodiment includes a driving circuit 30 and a plurality of display units 10, alternatively, driving signals of the driving circuit 30 may be provided by a driving chip or a flexible circuit board (not illustrated in the drawings), and the driving signals provided by the driving chip or the flexible circuit board may be respectively transmitted to the display unit 10 of the display panel 00 or to the wireless charging assembly 20 by binding the driving chip or the flexible circuit board to the display panel 00 to realize transmission of the driving signals to the driving circuit 30, and by electrically connecting the driving circuit 30 to the display panel 00 and electrically connecting the driving circuit 30 to the wireless charging assembly 20. The driving circuit 30 provided in this embodiment may include at least a display driving circuit 301 and a wireless charging driving circuit 302, where the display driving circuit 301 is electrically connected to the display unit 10, alternatively, the display unit 10 may be understood as a sub-pixel of the display panel 00, the display units 10 with different colors (filled with different filling patterns in the figure) may implement a picture required to be displayed on the display panel 00 through driving signals provided by the display driving circuit 301, alternatively, the display panel 00 in this embodiment may be an organic light emitting diode display panel, and the display unit 10 may include a pixel circuit and an organic light emitting diode (in fig. 1, the whole display unit 10 is shown in a block diagram, and the structure of the display unit 10 may be set according to actual requirements in specific implementation), where the pixel circuit is used to provide driving currents to drive the organic light emitting diode to emit light, so as to implement a display effect of the display device 000. The display driving circuit 301 may be either a scanning driving circuit or a data driving circuit, and fig. 1 of the present embodiment only exemplifies the display driving circuit 301 as a data driving circuit. The display driving circuit 301 may be electrically connected to the display units 10 in the display panel 00 through the data lines S, and the data voltage signals may be supplied to the respective display units 10 through the display driving circuit 301. Or in other embodiments, as shown in fig. 3, fig. 3 is another schematic plan view of the display device according to the embodiment of the present invention (it is to be understood that, for clarity of illustrating the structure of the wireless charging assembly in this embodiment, fig. 3 is filled with transparency), the display panel 00 may include a plurality of scan lines G and a plurality of data lines S, where the scan lines G and the data lines S cross and insulate to define an area where the display unit 10 is located; the display driving circuit 301 includes a scan driving circuit 30A and a data driving circuit 30B; the scan driving circuit 30A is electrically connected to the display unit 10 through the scan line G, and the data driving circuit 30B is electrically connected to the display unit 10 through the data line S (the electrical connection relationship is not illustrated in the drawings, it is understood that the scan line G, the data line S and the display unit 10 may be electrically connected through thin film transistors, and the description of the embodiment is omitted herein, as will be specifically understood with reference to the structure of the display panel in the related art. That is, the display driving circuit 301 may also be a scan driving circuit 30A, and the display driving circuit 301 may be electrically connected to the display units 10 in the display panel 00 through the scan lines G, and may provide scan driving signals to the respective display units 10 through the display driving circuit 301, so that data voltage signals may be transmitted to different display units 10 under the control of the scan driving signals, thereby realizing the display function of the display panel 00. It can be understood that the area defined by the cross insulation of the scan lines G and the data lines S is the area where the display unit 10 is located, and the working principle of the display driving circuit 301 for achieving the display effect is not described in detail in this embodiment, and in specific implementation, the working principle of the display panel in the related art can be referred to for understanding.

The wireless charging driving circuit 302 of the embodiment is electrically connected with the wireless charging assembly 20, the wireless charging signal of the wireless charging driving circuit 302 may be provided by a driving chip or a flexible circuit board, alternatively, the wireless charging driving circuit 302 may be disposed within any non-display area range of the display panel 00, such as a step area with a larger space where the display driving circuit 301 is disposed as illustrated in fig. 1 and 3, and may be disposed at other positions, and the setting position of the wireless charging driving circuit 302 is not specifically limited, so long as the wireless charging driving circuit 302 is electrically connected with the wireless charging assembly 20, the wireless charging signal provided by the driving chip or the flexible circuit board may be transmitted to the wireless charging assembly 20 through the wireless charging driving circuit 302, and the wireless charging assembly 20 is controlled to provide the charging function for the display device 000.

As shown in fig. 1 to 3, the operation phase of the display device 000 of the present embodiment may include at least a first period T1 and a second period T2, where the display driving circuit 301 provides a display driving signal to the display unit 10 in the first period T1, that is, the first period T1 may be understood as a driving phase of the display panel 00 for implementing a display function, and when the display driving circuit 301 is a data driving circuit, the display driving signal provided by the display driving circuit 301 to the display unit 10 is a data voltage signal V _Data Optionally, as shown in fig. 1 and 2, in the first period T1, a plurality of data lines (S1, S2, S3 … … Sn-1, sn) may be connected to the data driving circuit one by one, or may be connected to the data driving circuit simultaneously (the conduction control may be controlled by a multiplexing circuit, and may be understood with reference to the connection structure of the data driving circuit and the data lines in the related art, which is not described hereinThe details are as follows); alternatively, as shown in fig. 3, when the display driving circuit 301 is a scan driving circuit, the display driving signal provided by the display driving circuit 301 to the display unit 10 is a scan driving signal, for example, the scan driving circuit includes a plurality of cascaded shift registers, and the scan driving signal may be a start shift signal V provided to the shift registers _STV Alternatively, the scan driving signal may be another driving signal (not illustrated in the drawings) that can enable the scan driving circuit to operate normally, which is not particularly limited in this embodiment. Alternatively, in the first period T1, the wireless charging driving circuit 302 may output only the fundamental wave signal that does not interfere with the display screen. In the second period T2, the wireless charging driving circuit 302 provides the charging signal to the wireless charging assembly 20, that is, the second period T2 may be understood as a charging period of the display panel 00 for implementing the wireless charging function, where the wireless charging signal, such as the wireless charging pulse signal V, is provided by the wireless charging driving circuit 302 _WS To the wireless charging assembly 20, and controls the wireless charging assembly 20 to begin operating as the display device 000 to provide charging functions. The present embodiment sets the first period T1 and the second period T2 not to overlap, that is, sets the period in which the display driving circuit 301 supplies the display driving signal to the display unit 10 and the period in which the wireless charging driving circuit 302 supplies the charging signal to the wireless charging assembly 20 not to overlap, for example, after the display driving circuit 301 supplies the data voltage signal to the display unit 10 when the display driving circuit 301 is the data driving circuit, the second period T2 is added, and the display driving circuit 301 (the data driving circuit) stops supplying the data voltage signal V to the display unit 10 in the second period T2 _Data Alternatively, in the second period T2, the display driving circuit 301 (scan driving circuit) stops supplying the start shift signal V to the display unit 10 _STV Only the wireless charging driving circuit 302 applies a wireless charging signal such as a wireless charging pulse signal V _WS The wireless charging signal is transmitted to the wireless charging assembly 20, so that the time of transmitting the wireless charging signal to the display panel 00 is completely outside the time of providing the data voltage signal or the shift signal to the display unit 10 by the display driving circuit 301, thereby avoiding the wireless charging assembly 20 from displaying during operation The display effect of the panel 00 is interfered, and then the wireless charging pulse signal and the data voltage signal transmitted to the data line S are prevented from being coupled, so that the data voltage signal written to the data line S is fluctuated, any other shielding structure is not required to be additionally arranged in the display device 000, the power consumption of equipment is not required to be increased, and the abnormal display phenomenon of water ripple of a display picture can be avoided only through simple time sequence control of the display driving circuit 301 and the wireless charging driving circuit 302 in the driving circuit 30, and the display quality of the display device can be effectively improved.

It should be noted that, in this embodiment, the installation position and the installation structure of the wireless charging assembly 20 are not particularly limited, and in fig. 1, only the wireless charging assembly 20 is illustrated by a block, and the actual structure of the wireless charging assembly 20 is not shown, and in a specific implementation, the installation position of the wireless charging assembly 20 may be that illustrated in fig. 1 is set on one side of the display panel 00 (e.g. on the backlight side of the display panel 00), and an electrical connection with the wireless charging driving circuit 302 on the other side of the display panel 00 is implemented by punching a film layer structure of the display panel 00, or may be other installation structures, and fig. 1 in this embodiment is merely an electrical connection relationship illustrating both, and does not show the actual installation structure.

It should be understood that fig. 1 and 3 of the present embodiment are only schematic diagrams illustrating the display driving circuit 301 and the wireless charging driving circuit 302 in the driving circuit 30, and do not represent the actual design structure of the driving circuit 30, and the driving circuit 30 may include an electrical connection structure such as a transistor or a capacitor, so as to implement providing and transmitting a driving signal.

In some alternative embodiments, please refer to fig. 1 and fig. 4 in combination, fig. 4 is another timing diagram of the display device in fig. 1 when in operation, in which the first period T1 is a frame time, and the second period T2 is located between two adjacent frame times.

The present embodiment explains that only the display driving signal provided by the display driving circuit 301 to the display unit 10 is illustrated, and the first period T1 in which the wireless charging driving circuit 302 stops providing the charging signal to the wireless charging assembly 20 may be a Frame time, i.e. 1Frame, one Frame refers to a still picture, one Frame time refers to a time required for completing displaying a still picture, in this embodiment, it is understood that in one Frame time, the scanning driving circuit completes the turn-on of each scanning line G, each row of the display units 10 is turned on row by row, the data driving circuit completes the writing of the data voltage signal to each data line S, and the second period T2 is located between two adjacent Frame times through the process of transmitting the data line S to each display unit 10, for example, the wireless charging operation of the second period T2 is entered after the completion of the first Frame of the display picture, and the second Frame of the display picture is entered after the completion of the wireless charging operation of the second period T2. Assuming that the display panel 00 of the display device 000 of the present embodiment includes 100 rows of display units 10, in a first Frame (1 Frame), the scan driving circuit completes turning on all the scan lines G, each row of display units 10 in 100 rows is turned on row by row, and writing the data voltage signal to each data line S by the data driving circuit, after the data line S transmits the data voltage signal to the 100 rows of display units 10, the first Frame (1 Frame) is refreshed, and a period of time is waited, for example, a period of waiting for 50 rows of display units 10 to be scanned, which is a second period of time T2 (which corresponds to a period of time for adding one Hold Frame), the wireless charging driving circuit 302 only provides the charging signal to the wireless charging component 20 for wireless charging, in the second period of time T2, the scan driving circuit or the display driving circuit 301 of the data driving circuit stops providing the display driving signal to the display unit 10, and after the second period of time T2 is completed, the next Frame (2 Frame) is continued, and so on. In this embodiment, the charging period of the charging signal provided by the wireless charging driving circuit 302 to the wireless charging assembly 20 is set between two adjacent frames of pictures, so that the display period can be better avoided, the period of the display driving signal provided by the display driving circuit 301 to the display unit 10 and the charging period of the charging signal provided by the wireless charging driving circuit 302 to the wireless charging assembly 20 are not overlapped at all, the interference of the wireless charging assembly 20 to the display effect of the display panel 00 during working can be better avoided, the driving time sequence of one frame set by the display panel 00 is not required to be changed, and only the waiting pause time is required to be additionally arranged between two adjacent frames of time for wireless charging, so that the driving time sequence of the display device 000 is changed less, the improvement of the processing efficiency is facilitated, and the cost is saved.

In some alternative embodiments, please refer to fig. 5 and fig. 6 in combination, fig. 5 is another schematic plan view of a display device according to an embodiment of the present invention (it is understood that, for clarity, the wireless charging assembly in this embodiment is illustrated by fig. 5, and transparency filling is performed), fig. 6 is a timing diagram of the display device in fig. 5 when in operation, in this embodiment, the display panel 00 includes a display area AA for a frame time T _F The display area AA comprises an effective picture display area AA1 and a non-effective picture display area AA2; one frame time T _F Including an inactive picture display period T _F2 And an effective picture display period T _F1 ；

First time period T1 and effective picture display time period T _F1 Overlapping, the second time period T2 and the inactive picture display time period T _F2 Overlapping.

Alternatively, as shown in fig. 5, a plurality of display units 10 are sequentially arranged along a first direction X to form one display unit row 10H, and a plurality of display unit rows 10H are arranged along a second direction Y; wherein the first direction X and the second direction Y intersect; it is to be understood that the present embodiment is exemplified by the first direction X and the second direction Y being perpendicular to each other in the direction of the light-emitting surface of the display device 000.

In the inactive picture display period T _F2 In this case, the display driving circuit 301 does not supply a display driving signal to at least the nth display cell row 10H, and the nth display cellThe area where the line 10H is located is the inactive picture display area AA2. Or in the inactive picture display period T _F2 In this embodiment, the display driving circuit 301 may not provide the display driving signals to the plurality of display unit rows 10H, that is, the display driving circuit 301 may not provide the display driving signals to the 1 st to n th display unit rows 10H, and the area where the 1 st to n th display unit rows 10H are located is the inactive picture display area AA2, where n may be any positive integer less than the total number of display unit rows 10H included in the display panel 00.

The present embodiment illustrates that the first period T1 of the display driving signal provided by the display driving circuit 301 to the display unit 10 and the second period T2 of the charging signal provided by the wireless charging driving circuit 302 to the wireless charging assembly 20 may be located at one frame time T _F Within one frame time T _F I.e. 1 Frame, one Frame means a still picture, one Frame time T _F Refers to the time required to complete a still picture display, and in this embodiment can be understood as a frame time T _F In this case, the scan driving circuit completes the turn-on of each scan line G, turns on each row of display units 10 row by row, and the data driving circuit completes the process of writing the data voltage signal into each data line S and transmitting to each display unit 10 through the data line S. In the process of displaying a frame of picture, the display area AA of the display panel 00 may be set to include at least one active picture display area AA1 and at least one inactive picture display area AA2, where the active picture display area AA1 may be understood as an area where a substantial picture is displayed after each display unit 10 of the area writes a display driving signal, and if signals such as a necessary time and date, the inactive picture display area AA2 may be understood as an area where no substantial picture of the display driving signal is written in each display unit 10 within a range of some unnecessary display areas AA, such as an inactive picture display area AA2 of a black picture, in order to save driving power consumption of the display panel 00. In some other embodiments, if the display device 000 is in a power-saving state or a semi-sleep state, only the effective screen display area AA1 shown in FIG. 5 (such as the display units 10 on the 1 st-50 th rows of the display panel 00) The area) is displayed with time or weather information for the user to view, and the rest of the non-effective picture display area AA2 (such as the area where the 51 st to 100 th row of display units 10 are located in the display panel 00) is in the black picture state, the time period in which the display driving circuit 301 scans the area where the 1 st to 50 th row of display units 10 are located is the first time period T1, and the first time period T1 (effective picture display time period T _F1 ) In this, the display driving circuit 301 writes display driving signals only to the display units 10 of the 1 st to 50 th rows of the area, so that the effective screen display area AA1 can display time or weather information and the like; in other inactive picture display areas AA2 requiring black pictures, the display driving circuit 301 does not write the display driving signals to the display units 10 of the 51 st-100 th rows, so that the inactive picture display period T can be utilized in the present embodiment _F2 The wireless charging driving circuit 302 is enabled to provide the second period T2 and the inactive picture display period T of the charging signal to the wireless charging assembly 20 _F2 Overlapping, thereby not only can better avoid the wireless charging assembly 20 to produce the interference to the display effect of display panel 00 when the during operation, but also need not to add in addition between two frame time and be used for wireless charging in second time quantum T2, avoid second time quantum T2 to occupy the time between two frames too much, be favorable to reducing the consuming time of the whole drive cycle of display device 000, avoid increasing the display time when continuous frame picture shows.

It should be understood that the embodiment only illustrates the effective screen display area AA1 and the non-effective screen display area AA2 that the display panel 00 can include in one frame time, and in practice, the selection positions of the effective screen display area AA1 and the non-effective screen display area AA2 may be other manners, for example, the display area AA may include a plurality of effective screen display areas AA1 and a plurality of non-effective screen display areas AA2, etc., and at this time, the non-effective screen display period T of all the non-effective screen display areas AA2 may be utilized _F2 When implementing the wireless charging function, the selection timing of the second period T2 may be set according to the actual display requirement of the display device, or the detection unit may be further disposed in the display device 000 to detect the display driving circuit 301When the display driving signal is stopped from being provided to the display unit 10, the second period T2, or other arrangement, in which the wireless charging driving circuit 302 provides the charging signal to the wireless charging component 20, is immediately entered as soon as the detection unit detects that the display driving circuit 301 does not provide the display driving signal to the display unit 10 within a certain period, which is not limited herein.

In some alternative embodiments, please refer to fig. 7 and 8, fig. 7 is another schematic plan view of a display device provided in the embodiment of the present invention, fig. 8 is another schematic plan view of a display device provided in the embodiment of the present invention (it can be understood that, for clarity of illustration of the structure of the wireless charging assembly in the embodiment, fig. 7 and 8 are filled with transparency), in which the wireless charging assembly 20 includes a wireless charging coil 201 and a connection lead 202; the wireless charging coil 201 is electrically connected to the wireless charging drive circuit 302 through the connection lead 202.

The present embodiment illustrates that the wireless charging assembly 20 may include at least one wireless charging coil 201 and a connection lead 202 connected to an input end and an output end of the wireless charging coil 201, the wireless charging coil 201 is electrically connected to a wireless charging driving circuit 302 through the connection lead 202, the wireless charging coil 201 adopts a charging principle that charging is performed by using an electromagnetic induction principle, a wireless charging pulse signal is sent to the wireless charging coil 201 through the wireless charging driving circuit 302, and the wireless charging coil 201 generates an electromagnetic signal and induces the electromagnetic signal to generate a current to a battery assembly included in the display device 000 itself.

Optionally, as shown in fig. 7, in this embodiment, the wireless charging coil 201 may be disposed within a non-display area NA around the display area AA, that is, the wireless charging coil 201 may be a rectangular spiral coil or a coil with other shapes such as a circular coil, an oval coil, etc. surrounding the non-display area NA around the display area AA, so as to avoid the wireless charging coil 201 from affecting the display effect of the display area AA; alternatively, as shown in fig. 8, the wireless charging coil 201 may be partially located in the non-display area NA and partially located in the display area AA, and since the second period T2 of wireless charging in the embodiment does not overlap with the displayed first period T1, even if a portion of the wireless charging coil 201 is disposed in the display area AA, interference of the wireless charging signal on the display screen of the display area AA can be avoided, which is further beneficial to increasing the number of windings of the wireless charging coil 201 as much as possible and enhancing the wireless charging efficiency.

Further alternatively, referring to fig. 8 and 9 in combination, fig. 9 is a schematic view of a cross-sectional structure in A-A' direction in fig. 8, the display panel 00 of the present embodiment includes a substrate 01, the display panel 00 includes a light emitting side 00A and a backlight side 00B located at opposite sides of the substrate 01, and the wireless charging coil 201 is located at the backlight side 00B of the display panel 00. That is, in this embodiment, the wireless charging coil 201 with the wireless charging function may be disposed on the backlight side 00B of the display panel 00, and the film layer structure of the display unit 10 may be disposed on the other side of the substrate 01, that is, the light emitting side 00A, so that the reflection of the wireless charging coil 201 made of a metal or the like may be prevented from affecting the light emitting display effect of the display panel 00. Optionally, the connection lead 202 in this embodiment may be disposed within a range of a non-display area NA (such as a binding area) of the light-emitting side 00A of the display panel 00, and the wireless charging coil 201 of the backlight side 00B and the connection lead 202 of the light-emitting side 00A may be electrically connected by punching holes on the substrate 01, and signal transmission between the wireless charging driving circuit 302 of the light-emitting side 00A and the wireless charging coil 201 of the backlight side 00B may be achieved through the connection lead 202, so that it is beneficial to dispose the wireless charging driving circuit 302 and the display driving circuit 301 together within a range of a non-display area with a larger space of the display panel 00, and meanwhile, it may also be avoided that reflection phenomenon generated when the wireless charging coil 201 is disposed on the light-emitting side 00A affects the light-emitting effect of the display panel 00.

It should be noted that, fig. 9 of the present embodiment is only a schematic cross-sectional view of the display unit 10 drawn by way of example through a block diagram, and does not represent the actual film layer structure of the display panel 00, and when the display panel 00 is an organic light emitting diode display panel, the film layer structure of the light emitting side 00A of the substrate 01 may further include a transistor array layer, an anode layer, an organic light emitting layer, a pixel definition layer, a cathode layer, a packaging structure layer, etc. provided with a pixel circuit, and the film layer structure of the display panel 00 is not particularly limited, and in the specific implementation, the film layer structure of the light emitting side 00A of the substrate 01 may be provided according to the type of the display panel 00 with reference to the structure of the same type of display panel in the related art.

In some alternative embodiments, please refer to fig. 10 and 11 in combination, fig. 10 is another schematic plan view of the display device according to the embodiment of the present invention, fig. 11 is a schematic cross-sectional view of the display device in fig. 10 (it can be understood that, for clarity of illustrating the structure of the wireless charging assembly in the embodiment, fig. 10 is a transparent filling, fig. 11 is a schematic cross-sectional view illustrating the black matrix layer and the film layer of the data line, and does not represent the actual size), the display panel 00 of the embodiment includes a substrate 01, the display panel 00 includes a light-emitting side 00A and a backlight side 00B on opposite sides of the substrate 01, and the wireless charging coil 201 is located on the light-emitting side 00A of the display panel 00.

Optionally, the display panel 00 of this embodiment may be an organic light emitting diode display panel, where a side of the substrate 01 facing the light emitting side 00A of the display panel 00 may further include a transistor array layer 001 provided with a pixel circuit, a pixel defining layer 002, a packaging structure layer 003, and the transistor array layer 001 is used for providing a plurality of transistor TFTs or a capacitor structure C included in the pixel circuit, optionally, as shown in fig. 11, the transistor array layer 001 may include at least a gate metal layer 001A, a source drain metal layer 001B, a capacitor metal layer 001C, and the like, the pixel defining layer 002 includes a plurality of openings 004K, each organic material light emitting portion 0041 of the organic light emitting layer 002 is disposed in the opening 002K, the opening 002K of the pixel defining layer 002 is used for defining adjacent organic material light emitting portions 0041, so as to separate the organic material light emitting portions 0041 of different colors into relatively independent structures, and the packaging structure layer may be used for isolating water and oxygen, and preventing water vapor and oxygen in air from entering the organic light emitting layer 004 and damaging the array element 001. The display panel 00 of the present embodiment may further include a black matrix layer 40, where the black matrix layer 40 is located on a side of the substrate 01 facing the light emitting side 00A, alternatively, the black matrix layer 40 may be located on a side of the encapsulation structure layer 003 away from the substrate 01 (as shown in fig. 11), or the black matrix layer 40 may be located on a side of the encapsulation structure layer 003 facing the substrate 01 (not shown), or the black matrix layer 40 may be located at other positions, which is not specifically limited in the present embodiment; the wireless charging coil 201 is located on the side of the black matrix layer 40 facing the substrate 01, such as in one or more metal film layers of the transistor array layer; alternatively, fig. 11 of the present embodiment only illustrates an example in which the wireless charging coil 201 is located on the capacitor metal layer 001C of the transistor array layer, and in a specific implementation, the wireless charging coil 201 may also be located on another film layer, which only needs to satisfy that the wireless charging coil 201 is located on a side of the black matrix layer 40 facing the substrate 01, which is not limited in this embodiment.

The black matrix layer 40 of the present embodiment includes a plurality of light shielding strips 401, and the orthographic projection of the wireless charging coil 201 onto the substrate 01 is located within the orthographic projection range of the light shielding strips 401 onto the substrate 01.

The embodiment explains that the wireless charging coil 201 may be disposed on the light emitting side 00A of the display panel 00, that is, may be disposed on the side of the substrate 01 facing the display unit 10, so that when the film structure of the display panel 00 is manufactured, the film space is reserved for disposing the wireless charging coil 201, and then the backlight side 00B of the display panel 00 does not need to reserve the space of the wireless charging coil, thereby reducing the thickness of the display device 000 and providing a larger space for realizing an ultra-thin machine type. Optionally, in this embodiment, the display panel 00 is exemplified by an organic light emitting diode display panel, where the display panel 00 may include a transistor array layer 001, a pixel defining layer 002, a packaging structure layer 003 and the like on a side of the substrate 01 facing the light emitting side 00A, the transistor array layer 001 is used to set a plurality of transistors or capacitor structures included in the pixel circuit, optionally, as shown in fig. 11, the transistor array layer 001 may include at least a gate metal layer 001A, a source drain metal layer 001B, a capacitor metal layer 001C and the like, gates and the like of a plurality of transistors of the pixel circuit may be made on the gate metal layer 001A, sources and drains of the transistors may be made on the source drain metal layer 001B, and a plate of a capacitor included in the pixel circuit may be made on the capacitor metal layer 001C and the like. Optionally, the display panel 00 of this embodiment may further include an anode layer 005 and a cathode layer 006, where the anode layer 005 is provided with a plurality of anodes 0051, each anode 0051 may correspond to one display unit 10, the anode layer 005 may be disposed on a side of the organic light emitting layer 004 facing the transistor array layer 001, and the cathode layer 006 may be disposed entirely between the package structure layer 003 and the organic light emitting layer 004. The pixel defining layer 002 includes a plurality of openings 002K, and each of the organic material light emitting portions 0041 of the organic light emitting layer 004 is disposed within the opening 002K, and the openings 002K of the pixel defining layer 002 are used to define adjacent organic material light emitting portions 0041 and anodes 0051 so as to separate the organic material light emitting portions 0041 of the respective different colors into respective relatively independent structures. The organic material light emitting part 0041 is stacked with the anode 0051 and the cathode layer 006, and by applying a voltage between the anode 0051 and the cathode layer 006, the organic material light emitting part 0041 emits visible light, thereby realizing an image that can be recognized by a user. The pixel circuit provided in the transistor array layer 001 is electrically connected to the anode 0051 corresponding to each of the organic material light emitting parts 0041, so that a display driving signal is supplied to the organic material light emitting parts 0041 of each of the display units 10 through the pixel circuit, the pixel circuit may be electrically connected to the scan driving circuit through the scan line G, the pixel circuit may be electrically connected to the data driving circuit through the data line S, and a display driving signal is supplied to the pixel circuit of each of the display units 10 through the scan driving circuit and the data driving circuit, so that the organic material light emitting parts 0041 are driven to emit light for display. The encapsulation structure layer 003 can be used for isolating water and oxygen, and preventing water vapor and oxygen in the air from entering the organic light emitting layer 004 and the transistor array layer 001, so that damage is caused to components therein. The scan line G in this embodiment may be disposed on the gate metal layer 001A, so that the gate of the transistor TFT included in the pixel circuit and the scan line G are disposed on the same layer and material, and the data line S may be disposed on the source drain metal layer 001B, so that the source and drain of the transistor TFT included in the pixel circuit and the data line S are disposed on the same layer and material, which is beneficial to reducing the process steps. Optionally, the wireless charging coil 201 of the wireless charging assembly 20 in this embodiment may be disposed on the same layer as the scan line G (not shown in the drawing), or the wireless charging coil 201 may be disposed on the same layer as the data line S (not shown in the drawing), or may be disposed on another metal film layer, which is beneficial to reducing the number of mask plates and reducing the process flow; or a part of the wireless charging coil 201 may be disposed on the same layer as the scan line G, and a part of the wireless charging coil 201 may be disposed on the same layer as the data line S (i.e., the wireless charging coil 201 may be disposed by using a different metal layer to change the line, which is not illustrated in the drawings).

The display panel 00 of this embodiment may further include a black matrix layer 40, where the black matrix layer 40 is located on a side of the substrate 01 facing the light emitting side 00A, for example, the black matrix layer 40 may be disposed on a side of the package structure layer 003 away from the substrate 01, and the black matrix layer 40 may absorb visible light, so as to shield external visible light, avoid reflection of other film layers of the display panel 00, such as the cathode layer 006 or the transistor array layer 001, on visible light or reflection light of visible light, reduce reflectivity of the entire display panel 00 on visible light, and facilitate improvement of display effects of the display panel. The wireless charging coil 201 of this embodiment may be rectangular spiral, at this time, a portion of the wireless charging coil 201 may be disposed parallel to the scan line G, and a portion of the wireless charging coil 201 may be disposed parallel to the data line S, so that most of orthographic projection of the wireless charging coil 201 to the substrate 01 is located in an orthographic projection range of the light shielding strip 401 of the black matrix layer 40 to the substrate 01, and light leakage phenomenon may be avoided by shielding the light shielding strip 401 of the black matrix layer 40, and normal display of the display device may be prevented from being affected when the wireless charging coil 201 is located on the light emitting side 00A of the display panel 00.

In some alternative embodiments, please refer to fig. 12 and fig. 13 in combination, fig. 12 is a schematic plan view of another plane structure of the display device provided in the embodiment of the present invention, and fig. 13 is a schematic cross-sectional view of the display device in fig. 12, in this embodiment, the manufacturing material of the wireless charging coil 201 includes a transparent conductive material, and the transparent conductive material may be indium tin oxide (ITO, indium Tin Oxides), so that the influence on the light emitting effect of the display panel 00 when the wireless charging coil 201 is disposed on the light emitting side of the display panel 00 can be avoided.

Optionally, the display panel 00 of this embodiment may be an organic light emitting diode display panel, where the display panel 00 may include an anode layer 005 and a cathode layer 006 made of transparent conductive materials, and the wireless charging coil 201 of this embodiment may be disposed with the anode layer 005 (as shown in fig. 13) or the cathode layer 006 (not shown in the drawing) in the same layer and made of the same material, so that the number of mask plates used in manufacturing the display device may be reduced by a one-time patterning process, which is beneficial to avoiding the influence of the wireless charging coil 201 on the light emitting effect of the display panel 00 when disposed on the light emitting side 00A of the display panel 00, and saving the manufacturing cost.

It should be noted that, fig. 11 and fig. 13 in the foregoing embodiments are only exemplary illustrations of the film layer structure of the display panel 00, that is, the display panel may include, but not limited to, the film layer structure illustrated in the drawings, for example, a filter color blocking structure (not illustrated in the drawings) may be further disposed between adjacent light shielding strips 401 on a side of the package structure layer 003 away from the substrate 01, and the filter color blocking structure has the same color as the corresponding organic material light emitting portion 0041, so that the polarizer may be replaced by the arrangement of the filter color blocking structure in the organic light emitting display panel, so that the display panel has a higher transmittance, and the display panel with a high transmittance may also greatly reduce the power consumption. The embodiment illustrated in fig. 10 to 13 is only for illustrating that when the wireless charging coil 201 is disposed in the display area AA of the substrate 01 facing the light emitting side 00A, if the wireless charging coil 201 is made of a metal material, the wireless charging coil 201 may be disposed in the same layer as the scanning line G or the data line S or other metal film layers, and also needs to be hidden under the black matrix layer 40 to avoid affecting the light emitting effect; if the wireless charging coil 201 is made of transparent conductive material, the wireless charging coil 201 can be arranged on the same layer as the anode layer 005 or the cathode layer 006 or other transparent conductive layers, and meanwhile, the position of the wireless charging coil 201 is not required to be specially arranged, so that the degree of freedom of design is high, the difficulty of the manufacturing process is reduced, and the efficiency of the manufacturing process is improved.

In some alternative embodiments, please refer to fig. 1, fig. 2 and fig. 14 in combination, fig. 14 is a schematic diagram showing an electrical connection structure of the driving circuit in fig. 1, namely, the timing control unit and the detection unit, wherein in this embodiment, the display device 000 further includes the detection unit 70 and the timing control unit 80 electrically connected to each other, and the timing control unit 80 is electrically connected to the display driving circuit 301 and the wireless charging driving circuit 302 through the gate switch K;

in the first period T1, the gate switch K controls the timing control unit 80 to be electrically connected to the display driving circuit 301;

in the second period T2, the gate switch K controls the timing control unit 80 to be electrically connected to the wireless charging driving circuit 302.

The embodiment illustrates that the display device 000 may further be provided with the detecting unit 70 and the timing control unit 80, alternatively, the detecting unit 70 and the timing control unit 80 may be integrally provided in a driving chip or a flexible circuit board (not illustrated in the drawings) for a module structure, and the driving chip or the flexible circuit board may be bound to the display panel to implement electrical connection with the display driving circuit 301 and the wireless charging driving circuit 302, or the detecting unit 70 and the timing control unit 80 may be bound to separate integrated chips and provided in a non-display area NA of the display panel 00, and implement electrical connection with the display driving circuit 301 and the wireless charging driving circuit 302, respectively, through a gate switch K provided in the non-display area NA of the display panel 00. The detecting unit 70 and the timing control unit 80 of the present embodiment, the detecting unit 70 is configured to detect the time and the period of the wireless charging pulse signal of the entire display device 000, such as the arrival time of the wireless charging pulse signal, so as to provide the timing control unit 80, the timing control unit 80 provides the timing pulse required by the wireless charging driving circuit 302 to the wireless charging driving circuit 302 through the opening of the gate switch K, or the detecting unit 70 is configured to detect the time and the period of the display driving signal of the entire display device 000, such as the arrival time of the display driving signal, so as to provide the timing control unit 80, and the timing control unit 80 provides the timing pulse required by the display driving circuit 301 to the display driving circuit 301 through the opening of the gate switch K, so as to realize the transmission of the driving signal.

Optionally, the gate switch K in this embodiment may be a gate structure including at least two thin film transistors fabricated by using a film structure existing in the display panel 00 itself, so as to facilitate reducing the manufacturing process; as shown in fig. 15, fig. 15 is a schematic diagram of a structure of the gate switch in fig. 14, the gate switch K may include two first transistors M1 and second transistors M2 of the same type, wherein a gate of the first transistor M1 is connected to the first control signal CK1, a source of the first transistor M1 is electrically connected to the display driving circuit 301, a gate of the second transistor M2 is connected to the second control signal CK2, a source of the second transistor M2 is electrically connected to the wireless charging driving circuit 302, a drain of the first transistor M1 and a drain of the second transistor M2 are both connected to the timing control unit 80, and in the first period T1, when the first control signal CK1 is a high level signal and the second control signal CK2 is a low level signal, the first transistor M1 is turned on, and the second transistor M2 is turned off, the gate switch K of the structure controls the selection to electrically connect the timing control unit 80 to the display driving circuit 301; in the second period T2, when the first control signal CK1 is a low level signal and the second control signal CK2 is a high level signal, the first transistor M1 is turned off, and the second transistor M2 is turned on, so that the gate switch K of the structure controls and selects to electrically connect the timing control unit 80 with the wireless charging driving circuit 302, thereby realizing that the gate switch K controls and electrically connects the timing control unit 80 with the display driving circuit 301 in the first period T1, and the gate switch K controls and electrically connects the timing control unit 80 with the wireless charging driving circuit 302 in the second period T2, thereby realizing the effect of gate connection.

As a further alternative, as shown in fig. 16, fig. 16 is another schematic structural diagram of the on switch in fig. 14, the on switch K may also include two different types of N-type third transistors M3 and P-type fourth transistors M4, where the gate of the third transistor M3 and the fourth transistor M4 are both connected to the third control signal CK3, the source of the third transistor M3 is electrically connected to the display driving circuit 301, the source of the fourth transistor M4 is electrically connected to the wireless charging driving circuit 302, the drain of the third transistor M3 and the drain of the fourth transistor M4 are both connected to the timing control unit 80, and in the first period T1, when the third control signal CK3 is a high level signal, the third transistor M3 is turned on, and the fourth transistor M4 is turned off, so that the on switch K of the structure controls to selectively electrically connect the timing control unit 80 to the display driving circuit 301; in the second period T2, when the third control signal CK3 is a low level signal, the third transistor M3 is turned off, and the fourth transistor M4 is turned on, so that the gate switch K of the structure controls and selects to electrically connect the timing control unit 80 with the wireless charging driving circuit 302, thereby realizing that the gate switch K controls and electrically connects the timing control unit 80 with the display driving circuit 301 in the first period T1, and in the second period T2, the gate switch K controls and electrically connects the timing control unit 80 with the wireless charging driving circuit 302, thereby realizing the effect of gate connection.

It should be understood that fig. 15 and 16 of the present embodiment are only exemplary structures that may be provided when the gate switch K is provided in the film layer structure of the display panel 00, and in specific implementation, the design structure of the gate switch K includes, but is not limited to, but may include other design structures, and only needs to be capable of meeting the requirement that the gate switch K may control the timing control unit 80 to be electrically connected to the display driving circuit 301 in the first period T1, the timing control unit 80 to be not connected to the wireless charging driving circuit 302, and the gate switch K may control the timing control unit 80 to be electrically connected to the wireless charging driving circuit 302 in the second period T2, and the timing control unit 80 to be not connected to the display driving circuit 301.

It should be noted that fig. 14 to 16 of the present embodiment only illustrate the electrical connection relationship between the detecting unit 70 and the timing control unit 80, the display driving circuit 301 and the wireless charging driving circuit 302 through the gate switch K, and do not represent the actual position of the display device, and when the above structure is actually disposed in the display device, the design may be performed with reference to the circuit design structure of the non-display area of the display device in the related art, and the present embodiment is not repeated herein.

In some alternative embodiments, please refer to fig. 1, fig. 2 and fig. 17 in combination, fig. 17 is a flow chart of a driving method of a display device according to an embodiment of the present invention, where the driving method is used to drive the display device 000 in any of the above embodiments to work; in the driving method provided in the present embodiment, the working phase of the display device 000 includes at least a first period T1 and a second period T2;

in the first period T1, the display driving circuit 301 supplies a display driving signal to the display unit 10 so that the display device 000 displays a screen;

in a second period T2, the wireless charging driving circuit 302 provides a charging signal to the wireless charging assembly 20 so that the display device 000 is charged;

the first period T1 and the second period T2 do not overlap.

The present embodiment explains that in the driving method of the display device 000 provided in the above embodiment, the operation stage of the display device 000 includes at least the first period T1 and the second period T2; the display driving circuit 301 provides a display driving signal to the display unit 10, so that the first period T1 of the display device 000 displaying the picture and the wireless charging driving circuit 302 provide charging signals to the wireless charging assembly 20, so that the second period T2 of the charging of the display device 000 is not overlapped in time in the driving period of the whole display device, thereby avoiding the interference of the wireless charging assembly 20 to the display effect of the display panel 00 during operation, avoiding the coupling of the wireless charging pulse signal and the display driving signal, avoiding the fluctuation of the display driving signal, and avoiding the addition of any other shielding structure in the display device 000, and avoiding the abnormal display phenomenon of water ripple of the display picture by only simple time sequence control of the display driving circuit 301 and the wireless charging driving circuit 302 in the driving circuit 30, and effectively improving the display quality of the display device.

In some alternative embodiments, please refer to fig. 1, fig. 2, fig. 14-fig. 16, and fig. 18, fig. 18 is another flow chart of a driving method of a display device according to an embodiment of the present invention, as shown in fig. 14-fig. 16, the display device 000 of the present embodiment further includes a detection unit 70 and a timing control unit 80 electrically connected, and the timing control unit 80 is electrically connected to the display driving circuit 301 and the wireless charging driving circuit 302 through a gate switch K, respectively;

the operation phase of the display device 000 further includes a detection phase T0;

in the detection stage T0, the detection unit 70 detects the start time and the end time of the first period T1, and the detection unit 70 detects the start time and the end time of the second period T2 and provides the start time and the end time of the first period T1, the start time and the end time of the second period T2 to the timing control unit 80;

according to the above detection result of the detection unit 70, at the start time of the first period T1, the gate switch K controls the timing control unit 80 to be electrically connected to the display driving circuit 301, the gate switch K controls the timing control unit 80 not to be electrically connected to the wireless charging driving circuit 302, and the display driving circuit 301 starts to provide the display driving signal to the display unit 10;

At the end time of the first period T1, the gate switch K controls the timing control unit 80 not to be electrically connected to the display driving circuit 301, and the display driving circuit 301 stops supplying the display driving signal to the display unit 10;

at the start time of the second period T2, the gate switch K controls the timing control unit 80 to be electrically connected to the wireless charging driving circuit 302, and the wireless charging driving circuit 302 starts to provide the charging signal to the wireless charging assembly 20;

at the end time of the second period T2, the gate switch K controls the timing control unit 80 not to be electrically connected to the wireless charging driving circuit 302, and the wireless charging driving circuit 302 stops providing the charging signal to the wireless charging assembly 20, so that the display device 000 continues to enter the display phase of the first period T1.

According to the driving method provided by the embodiment, the detection result of the detection unit 70 is used for accurately determining the start time and the end time of the first time period T1 and the second time period T2, and the display driving circuit 301 is controlled to provide the display driving signal for the display unit 10, so that the first time period T1 of the display picture of the display device 000 and the wireless charging driving circuit 302 provide the charging signal for the wireless charging component 20, and the second time period T2 of the charging of the display device 000 are not overlapped in time in the driving period of the whole display device, thereby avoiding the interference of the wireless charging component 20 on the display effect of the display panel 00 during working, avoiding the coupling phenomenon of the wireless charging pulse signal and the display driving signal, and being beneficial to better improving the display quality of the display device.

As can be seen from the above embodiments, the display device and the driving method thereof provided by the present invention at least achieve the following beneficial effects:

While certain specific embodiments of the invention have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.

Claims

1. A display device, comprising: the wireless charging device comprises a display panel and a wireless charging assembly, wherein the display panel comprises a driving circuit and a plurality of display units;

the driving circuit comprises a display driving circuit and a wireless charging driving circuit, the display driving circuit is electrically connected with the display unit, and the wireless charging driving circuit is electrically connected with the wireless charging assembly; in a first period, the display driving circuit provides a display driving signal to the display unit; in a second period of time, the wireless charging drive circuit provides a charging signal to the wireless charging assembly;

the first time period and the second time period do not overlap;

the first time period is one frame time, and the second time period is positioned between two adjacent frame times; or,

The display panel comprises a display area, wherein the display area comprises an effective picture display area and a non-effective picture display area within one frame time; the frame time comprises a non-effective picture display time period and an effective picture display time period;

the first period of time overlaps the active picture display period of time and the second period of time overlaps the inactive picture display period of time.

2. The display device according to claim 1, wherein when the display panel includes a display area, the display area includes an effective picture display area and a non-effective picture display area within one frame time; the frame time comprises a non-effective picture display time period and an effective picture display time period; when the first time period is overlapped with the effective picture display time period and the second time period is overlapped with the non-effective picture display time period, a plurality of display units are sequentially arranged along a first direction to form a display unit row, and the display unit rows are arranged along a second direction; wherein the first direction and the second direction intersect;

and in the non-effective picture display time period, the display driving circuit at least provides no display driving signal for the nth display unit row, and the area where the nth display unit row is positioned is the non-effective picture display area.

3. The display device of claim 1, wherein the display panel comprises a plurality of scan lines and a plurality of data lines, the scan lines and the data lines intersecting and insulated to define an area in which the display unit is located;

the display driving circuit comprises a scanning driving circuit and a data driving circuit;

the scanning driving circuit is electrically connected with the display unit through the scanning line, and the data driving circuit is electrically connected with the display unit through the data line.

4. The display device of claim 1, wherein the wireless charging assembly comprises a wireless charging coil and a connection lead;

the wireless charging coil is electrically connected with the wireless charging driving circuit through the connecting lead.

5. The display device of claim 4, wherein the display panel comprises a substrate, the display panel comprising a light-emitting side and a backlight side on opposite sides of the substrate, the wireless charging coil being on the backlight side of the display panel.

6. The display device of claim 4, wherein the display panel comprises a substrate, the display panel comprising a light-exiting side and a backlight side on opposite sides of the substrate; the wireless charging coil is positioned on the light emitting side of the display panel.

7. The display device of claim 6, wherein the display device comprises a display device,

the wireless charging coil is made of transparent conductive materials.

8. The display device according to claim 6, wherein the display panel includes a black matrix layer on a side of the substrate facing the light-emitting side, and wherein the wireless charging coil is on a side of the black matrix layer facing the substrate;

the black matrix layer comprises a plurality of shading strips, and the orthographic projection of the wireless charging coil to the substrate is positioned in the orthographic projection range of the shading strips to the substrate.

9. The display device according to claim 1, further comprising a detection unit and a timing control unit electrically connected, the timing control unit being electrically connected to the display driving circuit and the wireless charging driving circuit, respectively, through a gate switch;

in the first time period, the gating switch controls the time sequence control unit to be electrically connected with the display driving circuit;

and in the second time period, the gating switch controls the time sequence control unit to be electrically connected with the wireless charging driving circuit.

10. A driving method of a display device, characterized in that the driving method is used for driving the display device according to any one of claims 1-9 to operate;

in the driving method, the working phase of the display device at least comprises a first time period and a second time period;

in the first period, the display driving circuit provides a display driving signal to the display unit so that the display device displays a picture;

in the second time period, the wireless charging driving circuit provides a charging signal to the wireless charging assembly so that the display device is charged;

the first time period does not overlap with the second time period.

11. The driving method according to claim 10, wherein,

the display device also comprises a detection unit and a time sequence control unit which are electrically connected, wherein the time sequence control unit is electrically connected with the display driving circuit and the wireless charging driving circuit respectively through a gating switch;

the working phase of the display device further comprises a detection phase;

in the detection stage, the detection unit detects the starting time and the ending time of the first time period, and the detection unit detects the starting time and the ending time of the second time period and provides the starting time and the ending time of the first time period and the starting time and the ending time of the second time period to the time sequence control unit;

At the starting moment of the first time period, the gating switch controls the time sequence control unit to be electrically connected with the display driving circuit, the gating switch controls the time sequence control unit not to be electrically connected with the wireless charging driving circuit, and the display driving circuit starts to provide display driving signals for the display unit;

at the end time of the first period, the gate switch controls the time sequence control unit not to be electrically connected with the display driving circuit, and the display driving circuit stops providing display driving signals to the display unit;

at the starting time of the second time period, the gating switch controls the time sequence control unit to be electrically connected with the wireless charging driving circuit, and the wireless charging driving circuit starts to provide a charging signal for the wireless charging assembly;

at the end time of the second time period, the gating switch controls the time sequence control unit not to be electrically connected with the wireless charging driving circuit, and the wireless charging driving circuit stops providing a charging signal to the wireless charging component.