Display panel, driving method thereof, and display device

Abstract

The present disclosure relates to the technical field of display, in particular to a display panel, a driving method thereof and a display device. The display panel comprises a plurality of light emitting elements; at least one light emitting element is used to emit a LIFI signal in at least one frame display time of the display panel, one LIFI signal corresponds to one binary coded information; the LIFI signal has a plurality of light emitting phases and a plurality of non-light emitting phases arranged alternately, the light emitting phase corresponds to 1 in the binary code, and the light emitting element emits light in the light emitting phase; the non-light emitting phase corresponds to 0 in the binary code, and the light emitting element does not emit light in the non-light emitting phase. The present disclosure realizes integration and fusion of display and communication functions, and the signal structure is clear, facilitating encoding and decoding.

Description

Technical Field

[0001] This disclosure relates to the field of display technology, and in particular to a display panel and its driving method, and a display device. Background Technology

[0002] Light Fidelity (LIFI), also known as visible light wireless communication, is a novel wireless transmission technology that utilizes the visible light spectrum for data transmission. LIFI transmits information by embedding a tiny chip on a light-emitting diode (LED) and using electrical signals to control the LED to emit a high-speed flashing signal invisible to the naked eye.

[0003] With the development of display technology, integrating visible light communication (VLC) functionality into display panels has become a trend. Among related technologies, existing solutions have attempted to integrate LiFi signal transmission into display devices, utilizing the light-emitting elements of the display panel to transmit LiFi signals simultaneously with the displayed image. However, current technologies still have shortcomings in terms of LiFi signal encoding methods, signal structure flexibility, and ease of signal adjustment, making it difficult to meet diverse communication needs. Summary of the Invention

[0004] To solve the above-mentioned technical problems, or at least partially solve them, this disclosure provides a display panel and its driving method and display device, which realizes the integration of display and communication functions, and has a clear signal structure that is easy to encode and decode.

[0005] In a first aspect, this disclosure provides a display panel, comprising: a plurality of light-emitting elements; during at least one frame of display time of the display panel, at least one light-emitting element is used to emit a LIFI signal, one LIFI signal corresponding to one binary coded information; the LIFI signal has a plurality of alternately set light-emitting stages and a plurality of non-light-emitting stages, the light-emitting stage corresponding to 1 in the binary code, during the light-emitting stage, the light-emitting element emits light; the non-light-emitting stage corresponding to 0 in the binary code, during the non-light-emitting stage, the light-emitting element does not emit light.

[0006] Secondly, this disclosure provides a driving method for a display panel, applied to the aforementioned display panel. The driving method includes: controlling at least one light-emitting element to emit a LIFI signal during at least one frame of display time on the display panel, wherein one LIFI signal corresponds to one binary encoded information; the LIFI signal has multiple alternately set light-emitting stages and multiple non-light-emitting stages, wherein the light-emitting stage corresponds to 1 in the binary encoding, and the light-emitting element emits light during the light-emitting stage; and the non-light-emitting stage corresponds to 0 in the binary encoding, and the light-emitting element does not emit light during the non-light-emitting stage.

[0007] Thirdly, this disclosure also provides a display device including the aforementioned display panel.

[0008] The technical solution provided in this disclosure has the following advantages compared with the prior art: The display panel disclosed herein emits a LIFI signal with corresponding binary encoded information using a light-emitting element during at least one frame of display time. The LIFI signal has alternating light-emitting and non-light-emitting phases, corresponding to 1 and 0 in binary encoding, respectively. This allows the display panel to transmit LIFI signals in a simple and efficient manner while simultaneously displaying the image. The signal structure is clear, facilitating encoding and decoding. The alternating light-emitting and non-light-emitting phases of the LIFI signal, corresponding to 1 and 0 in binary encoding, are logically intuitive and simple to encode. Data transmission can be achieved without complex modulation techniques, reducing the system's implementation difficulty and cost. Furthermore, it does not affect the normal display effect. Since the brightness variation frequency of the light-emitting element can be set above the range of human eye perception, the light-emitting element does not affect the normal display quality of the display panel while transmitting the LIFI signal. Users will not perceive any additional flicker while viewing the display, achieving integrated display and communication functions. Attached Figure Description

[0009] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0010] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a plan view of a display panel provided in this disclosure; Figure 2 This is a schematic diagram of a LIFI signal provided in this disclosure; Figure 3 This is a schematic diagram of another LIFI signal provided in this disclosure; Figure 4 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure; Figure 5 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure; Figure 6 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure; Figure 7This is a plan view of another display panel provided in this disclosure; Figure 8 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure; Figure 9 This is a plan view of yet another display panel provided in this disclosure; Figure 10 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure; Figure 11 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure; Figure 12 This is a flowchart of a driving method for a display panel provided in this disclosure; Figure 13 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure; Figure 14 This is a plan view of a display device provided in this disclosure. Detailed Implementation

[0012] To better understand the above-mentioned objectives, features, and advantages of this disclosure, the solutions disclosed herein will be further described below. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0013] Numerous specific details are set forth in the following description in order to provide a full understanding of this disclosure, but this disclosure may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some, and not all, of the embodiments of this disclosure.

[0014] Figure 1 This is a plan view of a display panel provided in this disclosure. Figure 2 This is a schematic diagram of a LIFI signal provided in this disclosure, for reference. Figure 1 and Figure 2 This disclosure provides a display panel, which includes a plurality of light-emitting elements 10; During at least one frame of display time on the display panel, at least one light-emitting element 10 is used to emit a LIFI signal, and one LIFI signal corresponds to one binary encoded information; The LIFI signal has multiple alternating light-emitting phases t1 and multiple non-light-emitting phases t2. The light-emitting phase t1 corresponds to 1 in binary code, and the light-emitting element 10 emits light during the light-emitting phase t1. The non-light-emitting phase t2 corresponds to 0 in binary code, and the light-emitting element does not emit light during the non-light-emitting phase t2.

[0015] Specifically, this disclosure provides a display panel including a plurality of light-emitting elements 10. Optionally, the light-emitting elements 10 can be mini-LEDs or micro-LEDs. When mini-LEDs or micro-LEDs are used as light-emitting elements 10, their fast response speed and high modulation bandwidth can better meet the needs of high-speed LiFi communication.

[0016] At least one light-emitting element 10 is used to emit a LiFi signal during at least one frame of display time on the display panel. It should be noted that "one frame of display time" refers to the time required for the display panel to refresh one complete frame of the image. For example, for a display panel with a refresh rate of 60Hz, one frame of display time is approximately 16.67ms. "At least one light-emitting element 10" means that a single light-emitting element 10 can emit a LiFi signal, or multiple light-emitting elements 10 can emit LiFi signals simultaneously; this disclosure does not specifically limit this.

[0017] One LIFI signal corresponds to one binary encoded information. That is, the data to be transmitted is first converted into binary code (a sequence of 0s and 1s), and then the light-emitting element 10 sends out the binary encoded information in the form of an optical signal. Figure 1 An example is shown where the binary encoded information can be one-dimensional binary encoded information. (Reference) Figure 3 , Figure 3 This is a schematic diagram of another LIFI signal provided in this disclosure. The binary encoded information can also be two-dimensional binary encoded information, which can be determined according to the actual communication protocol and data format.

[0018] The LIFI signal has multiple alternating emission phases t1 and multiple non-emission phases t2. In other words, in the time domain, emission phase t1 (the period when the light-emitting element 10 is lit) and non-emission phase t2 (the period when the light-emitting element 10 is off) alternate sequentially, forming a signal waveform of pulse width modulation (PWM) or a similar form. Emission phase t1 corresponds to 1 in binary code; during emission phase t1, the light-emitting element 10 emits light. Non-emission phase t2 corresponds to 0 in binary code; during non-emission phase t2, the light-emitting element 10 does not emit light. Through this configuration, the light-emitting element 10 represents 1 and 0 in binary information with two distinct light intensity states: emitting and not emitting light, thereby transmitting the binary encoded information in the form of an optical signal.

[0019] Since the flicker frequency of the light-emitting element 10 can be set to a very high level (e.g., reaching kHz or even MHz), the human eye cannot perceive such high-frequency changes in brightness. Therefore, while sending LIFI signals, the light-emitting element 10 can still perform the display function normally without adversely affecting the user's visual experience.

[0020] Optionally, the same light-emitting element 10 can emit the same or different LIFI signals during different frame display times, thereby realizing the function of repeatedly sending the same information or continuously sending different information. For example, during consecutive multi-frame display times, the light-emitting element 10 can repeatedly send the same LIFI signal to increase the probability of correct reception at the receiving end; it can also send different LIFI signals in different frames to achieve the transmission of a larger amount of data.

[0021] The display panel provided in this embodiment emits a LIFI signal corresponding to binary encoded information using a light-emitting element 10 during at least one frame of display time. The LIFI signal has alternating light-emitting phase t1 and non-light-emitting phase t2, corresponding to 1 and 0 in the binary code, respectively. This allows the display panel to transmit the LIFI signal in a simple and efficient manner while simultaneously displaying the image. The signal structure is clear, facilitating encoding and decoding. The alternating light-emitting phase t1 and non-light-emitting phase t2 of the LIFI signal, corresponding to 1 and 0 in the binary code, is logically intuitive and simple in encoding. Data transmission can be achieved without complex modulation techniques, reducing the system's implementation difficulty and cost. Simultaneously, it does not affect the normal display effect. Since the brightness variation frequency of the light-emitting element 10 can be set above the human eye's perception range, the light-emitting element 10 does not affect the normal display quality of the display panel while transmitting the LIFI signal. Users will not perceive any additional flicker while viewing the display, achieving integrated display and communication functions.

[0022] Figure 4 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure, see reference. Figure 1 and Figure 4 In some alternative embodiments, during one frame of display time on the display panel, the duration of the last light-emitting phase t1 in the LIFI signal is shorter than the duration of other light-emitting phases t1.

[0023] Specifically, during the transmission of LIFI signals, the receiver needs to accurately identify the start and end positions of each frame in order to achieve correct demodulation and decoding. However, since LIFI signals consist of alternating light-emitting phases t1 and non-light-emitting phases t2, each phase corresponds to valid data bits in binary encoded information. If the signal structure of each frame is exactly the same, the receiver will have difficulty distinguishing the end position of one frame and the start position of the next.

[0024] Based on this, in this embodiment of the disclosure, the duration of the last light-emitting stage t11 in the LIFI signal within a frame display time is set to be less than the duration of other light-emitting stages t1. Here, other light-emitting stages refer to all light-emitting stages t1 other than the last light-emitting stage t11, including the first light-emitting stage t1 in the LIFI signal, and all intermediate light-emitting stages t1, etc.

[0025] It's important to understand that the last light-emitting stage t11 still corresponds to 1 in binary encoding, meaning that the light-emitting element still emits light within this stage t11, and the data information it carries remains unchanged. The difference lies in the shortened duration of this stage t11, thus creating a unique identifier in the time dimension that distinguishes it from other light-emitting stages t1.

[0026] With the above configuration, the last emission stage t11 not only carries the data function of the last 1 in the binary encoded information, but also serves as an auxiliary function of frame end marker (or frame tail marker). After receiving the LIFI signal, the receiver detects and compares the duration of each emission stage t1. When it identifies an emission stage with a duration significantly shorter than other emission stages, it can determine that the LIFI signal transmission of the current frame has ended, thus defining the end boundary of a frame of data. Based on this, the receiver can further distinguish the signal of the previous frame from the signal of the next frame according to the frame end marker, avoiding inter-frame crosstalk.

[0027] Optionally, within a single frame display time, the last non-emitting phase in the LIFI signal can also be configured to have a preset duration, to work together with the last emitting phase to form a frame end marker. For example, the non-emitting phase following the last emitting phase can have a longer duration than other non-emitting phases, thereby further enhancing the recognizability of the frame end marker.

[0028] Optionally, the feature that "the duration of the last light-emitting phase is shorter than the duration of other light-emitting phases" may exist only in part of the frame display time, or it may exist in every frame display time. For example, in continuous frames that need to transmit a large amount of data, the last light-emitting phase of each frame adopts a shorter duration so that the receiving end can synchronize and demodulate the signal of each frame. In some special frames (such as idle frames or synchronization frames), the above setting may not be adopted, and this disclosure does not specifically limit it.

[0029] Optionally, the durations of the light-emitting stages other than the last light-emitting stage can be the same or different from each other. For example, the duration of each light-emitting stage can be flexibly adjusted according to the specific content of the binary code and the preset encoding rules, as long as the duration of the last light-emitting stage is less than the duration of all other light-emitting stages.

[0030] By setting the duration of the last emission phase t11 in a LIFI signal frame to be shorter than the duration of other emission phases t1, a frame end marker is introduced into the signal structure itself. The receiver can accurately identify the end position of each frame without the need for additional synchronization signals or external clocks, thereby effectively distinguishing data from adjacent frames, avoiding inter-frame interference and data confusion, and improving communication reliability.

[0031] In some alternative embodiments, in the same LIFI signal, at least two emission phases have the same duration, and / or at least two emission phases have different durations; And / or, at least two non-luminescent phases have the same duration, and / or, at least two non-luminescent phases have different durations.

[0032] Specifically, in the transmission of LIFI signals, the duration configuration of the emission phase and the non-emission phase directly affects the signal encoding method, data transmission rate, and communication flexibility. This disclosure embodiment flexibly designs the duration relationships between different emission phases and between different non-emission phases within the same LIFI signal to adapt to different communication needs.

[0033] Specifically, a single LIFI signal includes multiple emitting stages and multiple non-emitting stages, which are alternated. For the multiple emitting stages, at least one of the following two conditions can exist: Figure 5 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure, see reference. Figure 1 and Figure 5 At least two emission stages must have the same duration. That is, within the same LIFI signal, there must be at least two emission stages with equal durations. For example, in a LIFI signal, emission stages t12 and t13 may have the same duration. By setting multiple emission stages with the same duration, the signal can have a regular rhythm, facilitating clock synchronization and signal sampling at the receiver and reducing demodulation difficulty. Optionally, all emission stages in the same LIFI signal can have the same duration, i.e., each emission stage has a uniform duration, thus forming an equally spaced emission pulse sequence, further improving the regularity and predictability of the signal.

[0034] Figure 6 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure, see reference. Figure 1 and Figure 6At least two emission phases have different durations. That is, within the same LIFI signal, there are at least two emission phases with unequal durations. For example, in a LIFI signal, the duration of emission phase t14 differs from that of emission phase t15. By setting emission phases with different durations, the encoding dimension can be expanded—duration itself can carry information. For example, a longer emission phase can be defined as one state in binary encoding (e.g., 1), and a shorter emission phase as another state (e.g., 0), thereby transmitting more information per unit time and increasing the data transmission rate. Alternatively, duration differences can also be used to identify specific locations in the signal (e.g., frame headers, frame tails), enhancing the signal's structure.

[0035] Similarly, for multiple non-light-emitting stages in the same LIFI signal, at least one of the following two situations may exist: Continue to refer to Figure 1 and Figure 5 At least two non-emitting phases must have the same duration. That is, within the same LIFI signal, there must be at least two non-emitting phases with equal durations. For example, in a LIFI signal, the durations of non-emitting phase t21 and non-emitting phase t22 are the same. By setting multiple non-emitting phases with the same duration, the signal extinguishing interval can be kept consistent, which is beneficial for the receiver to perform stable sampling and decision-making on the signal.

[0036] Continue to refer to Figure 1 and Figure 6 At least two non-light-emitting phases have different durations. That is, in the same LIFI signal, there are at least two non-light-emitting phases with unequal durations. For example, in a LIFI signal, the duration of non-light-emitting phase t23 is different from the duration of non-light-emitting phase t24. By setting non-light-emitting phases with different durations, the coding dimension can be expanded, allowing the duration differences of non-light-emitting phases to carry information, further improving communication capacity.

[0037] The duration configurations for the emission phase and the non-emission phase described above can be implemented independently or in combination. That is, the duration of the emission phase can be flexibly configured only, while the duration of the non-emission phase remains uniform; the duration of the non-emission phase can be flexibly configured only, while the duration of the emission phase remains uniform; or the durations of both the emission and non-emission phases can be flexibly configured simultaneously to maximize the variety of signal encoding methods.

[0038] Optionally, the duration of the light-emitting phase and the non-light-emitting phase can be dynamically adjusted according to the content of the binary encoded information to be transmitted. For example, when the amount of data to be transmitted is large, a time-differentiated configuration can be adopted, using the duration itself to carry additional information and improve the data transmission rate; when the amount of data to be transmitted is small or the transmission reliability requirement is high, a time-uniform configuration can be adopted to improve the demodulation accuracy and anti-interference capability of the receiving end.

[0039] Optionally, the duration of both the light-emitting phase and the non-light-emitting phase is greater than zero and less than the duration of one frame display time. The specific values ​​of each duration can be determined comprehensively based on the refresh rate of the display panel, the response speed of the light-emitting element, the sampling capability of the receiving end, and the requirements of the communication protocol. This disclosure does not impose specific limitations on this.

[0040] Optionally, "same duration" can be understood as equal within a preset error range. For example, minor differences caused by factors such as clock precision and circuit delay can be regarded as the same duration as long as they do not affect the receiver's recognition and judgment of the duration.

[0041] By configuring the duration of different light-emitting and / or non-light-emitting phases in the same LIFI signal in the same way or differently, the duration itself becomes a moduloable parameter. The encoding dimension is expanded from the traditional two-state system of light and no light to a multi-state system with light and no light, as well as duration variations. More information can be transmitted within the same frame display time, effectively improving the communication rate.

[0042] Meanwhile, when using the same duration configuration, the signal waveform is regular and the rhythm is uniform, which is beneficial for clock synchronization and signal sampling at the receiving end, reducing the bit error rate and improving communication reliability. When using different duration configurations, a higher data transmission rate can be achieved to meet the needs of large-volume data communication. Users or systems can flexibly switch between or combine the two modes according to the actual application scenario.

[0043] Figure 7 This is a plan view of another display panel provided in this disclosure. Figure 8 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure, see reference. Figure 7 and Figure 8 In some optional embodiments, the display panel includes a plurality of pixel circuits 20 and a plurality of gate driving circuits 30. The pixel circuits 20 are electrically connected to the light-emitting elements 10 in a one-to-one correspondence. The pixel circuits 20 are electrically connected to the gate driving circuits 30. The gate driving circuits 30 are used to transmit a scan signal CLK to the pixel circuits 20 electrically connected to them. The pixel circuits 20 are used to control the light-emitting elements 10 electrically connected to them to emit LIFI signals based on the scan signal CLK.

[0044] Specifically, the display panel typically comprises multiple pixel units arranged in an array. Each pixel unit includes at least one light-emitting element 10 and a pixel circuit 20 for driving the light-emitting element 10 to emit light. The pixel circuit 20 is electrically connected to each light-emitting element 10 in a one-to-one correspondence; that is, each light-emitting element 10 has an independent pixel circuit 20 for driving and controlling it. The specific structure of the pixel circuit 20 can employ various pixel circuit architectures known in the art, and may include components such as driving transistors, switching transistors, and storage capacitors; this disclosure does not specifically limit its application.

[0045] The gate driving circuit 30 is a circuit module in the display panel used to generate the scan signal CLK. Multiple gate driving circuits 30 are typically provided in the display panel, for example, they can be located in the bezel area of ​​the display panel. Each gate driving circuit 30 is electrically connected to the pixel circuit 20 of the corresponding row or area via a corresponding scan line, and is used to transmit the scan signal CLK to these pixel circuits 20. After receiving the scan signal CLK, the pixel circuit 20 controls the light-emitting element 10 electrically connected to it to emit a LIFI signal based on the scan signal CLK. Specifically, the scan signal CLK is a periodic pulse signal, which contains alternating high-level pulses and low-level intervals. The pixel circuit 20 can control the light-emitting element 10 to emit light or not emit light at specific time points according to the pulse timing of the scan signal CLK, thereby causing the light-emitting element 10 to emit a LIFI signal according to a preset timing sequence of light-emitting and non-light-emitting phases.

[0046] It should be noted that controlling the light-emitting element 10 to emit a LIFI signal based on the scan signal CLK can be implemented in several ways. As an optional implementation, the pixel circuit 20 can directly use the scan signal CLK as the basis for controlling whether the light-emitting element 10 emits light. For example, when the scan signal CLK is low during the emitting phase, the pixel circuit 20 controls the light-emitting element 10 to emit light, corresponding to the emitting phase of the LIFI signal (1 in binary encoding); when the scan signal CLK remains high during the non-emitting phase, the pixel circuit 20 controls the light-emitting element 10 not to emit light, corresponding to the non-emitting phase of the LIFI signal (0 in binary encoding). In this way, the waveform of the LIFI signal can be directly determined by the waveform of the scan signal CLK, without the need for an additional control signal.

[0047] No additional LiFi signal generation circuit is required in the display panel. This disclosure achieves LiFi signal transmission by reusing the existing gate drive circuit 30 and pixel circuit 20 in the display panel, making full use of the existing hardware resources of the display panel. There is no need to set up an additional dedicated signal generation module or modulation circuit, which helps to reduce the circuit area and manufacturing cost of the display panel and improve the integration.

[0048] Figure 9This is a plan view of yet another display panel provided in this disclosure. Figure 10 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure. It should be noted that... Figure 10 In this context, LIFI1 indicates the first LIFI signal, and LIFI2 indicates the second LIFI signal. This notation is also applied in other embodiments of this disclosure and will not be elaborated further. (See references) Figure 9 and Figure 10 In some alternative embodiments, during at least one frame of display time on the display panel, at least two light-emitting elements 10 are used to emit LIFI signals; The light-emitting element 10 includes a first light-emitting element 11 and a second light-emitting element 12. The first light-emitting element 11 is used to emit a first LIFI signal, and the second light-emitting element 12 is used to emit a second LIFI signal. The first light-emitting element 11 and the second light-emitting element 12 are electrically connected to different gate driving circuits 30, respectively.

[0049] Specifically, the display panel typically includes multiple light-emitting elements 10 arranged in an array. In the embodiments of this disclosure, at least two light-emitting elements 10 are used simultaneously to emit LiFI signals during at least one frame of display time on the display panel. For ease of description, two of the light-emitting elements 10 are respectively named as the first light-emitting element 11 and the second light-emitting element 12. It is understood that the designations "first" and "second" are only used to distinguish different light-emitting elements and do not indicate limitations on quantity, position, or importance. In practical applications, the number of light-emitting elements 10 emitting LiFI signals can be two, three, four, or even more, and this disclosure does not specifically limit this.

[0050] The first light-emitting element 11 is used to emit a first LIFI signal, and the second light-emitting element 12 is used to emit a second LIFI signal. The first LIFI signal and the second LIFI signal each independently have multiple alternating light-emitting stages and multiple non-light-emitting stages, with the light-emitting stage corresponding to 1 in binary code and the non-light-emitting stage corresponding to 0 in binary code.

[0051] The first light-emitting element 11 and the second light-emitting element 12 are electrically connected to different gate driving circuits 30. That is, the first light-emitting element 11 is electrically connected to the first gate driving circuit 31 through its corresponding pixel circuit 20, and the second light-emitting element 12 is electrically connected to the second gate driving circuit 32 through its corresponding pixel circuit 20. The first gate driving circuit 31 and the second gate driving circuit 32 are different gate driving circuits. It should be noted that different gate driving circuits can refer to two physically independent gate driving circuit chips or modules, or to two different output channels or cascaded units within the same gate driving circuit, as long as they can independently generate and output scan signals that are unrelated to each other.

[0052] By electrically connecting the first light-emitting element 11 and the second light-emitting element 12 to different gate driving circuits 30, the first light-emitting element 11 and the second light-emitting element 12 can receive scanning signals from different gate driving circuits 30, and thus be independently controlled to emit corresponding LIFI signals.

[0053] In specific implementations, the first light-emitting element 11 and the second light-emitting element 12 can have various positional relationships in the display panel. Optionally, the first light-emitting element 11 and the second light-emitting element 12 can be located in the same row of the display panel and electrically connected to different gate driving circuits 30 respectively. Optionally, the first light-emitting element 11 and the second light-emitting element 12 can be located in the same column of the display panel and electrically connected to different gate driving circuits 30 respectively. Optionally, the first light-emitting element 11 and the second light-emitting element 12 can also be located in different rows and different columns of the display panel, spatially spaced apart from each other. This disclosure does not limit the specific positional relationship of the two light-emitting elements 10 in the display panel.

[0054] Optionally, the display panel may include multiple light-emitting element groups, each light-emitting element group including at least two light-emitting elements 10. Each light-emitting element 10 within the same light-emitting element group is electrically connected to a different gate driving circuit 30 and is used to emit the same or different LIFI signals. Different light-emitting element groups can operate independently, thereby realizing multiple sets of parallel communication.

[0055] Optionally, the first light-emitting element 11 and the second light-emitting element 12 can be arranged adjacent to each other or spaced apart within the display area of ​​the display panel. When arranged adjacently, the LIFI signals emitted by the two elements are more concentrated in space, which is beneficial for the receiving end to receive signals in a specific direction; when arranged spaced apart, the LIFI signals emitted by the two elements are more dispersed in space, which is beneficial for expanding the signal coverage area.

[0056] Optionally, the light-emitting areas of the first light-emitting element 11 and the second light-emitting element 12 can be the same or different. The light-emitting element 10 with a larger light-emitting area emits a higher LIFI signal strength, which is suitable for long-distance transmission; the light-emitting element 10 with a smaller light-emitting area emits a lower LIFI signal strength, which is suitable for short-distance transmission.

[0057] Optionally, the first light-emitting element 11 and the second light-emitting element 12 can be located in the same pixel unit or in different pixel units. When located in the same pixel unit, they can both serve as the light-emitting elements of that pixel unit. For example, two sub-light-emitting elements can be set in the same pixel unit, each controlled by a different gate driving circuit 30. When located in different pixel units, they can send LIFI signals in different areas of the display panel.

[0058] In this embodiment, the first light-emitting element 11 and the second light-emitting element 12 are electrically connected to different gate driving circuits 30 because, in the conventional driving architecture of a display panel, the scan signals output by the same gate driving circuit 30 are usually the same, or at least timing-dependent. If the two light-emitting elements 10 are connected to the same gate driving circuit 30, they receive the same scan signals and therefore can only emit the same LIFI signal. However, by connecting the two light-emitting elements 10 to different gate driving circuits 30, since different gate driving circuits 30 can independently generate different scan signals, the two light-emitting elements 10 can be controlled to emit the same or different LIFI signals, thereby providing hardware support for multiple communication modes.

[0059] Optionally, the first gate driving circuit 31 and the second gate driving circuit 32 can be configured to output scanning signals with the same frequency but different phases, so that the first LIFI signal and the second LIFI signal have the same data transmission rate but have a certain phase difference, which helps the receiver to improve signal quality through diversity reception technology.

[0060] Optionally, the first gate driving circuit 31 and the second gate driving circuit 32 can be configured to output scanning signals with different frequencies, so that the first LIFI signal and the second LIFI signal have different data transmission rates. In this way, the display panel can flexibly configure the communication parameters of each light-emitting element 10 according to different communication requirements (e.g., some areas require high-speed transmission, and some areas require low-speed but high-reliability transmission).

[0061] Optionally, the first light-emitting element 11 and the second light-emitting element 12 emit a LIFI signal during at least one frame of the display panel. During other frames of the display panel, the first light-emitting element 11 and the second light-emitting element 12 may be used only for display functions without emitting a LIFI signal, or neither may emit light (e.g., when displaying a black screen). This frame-level time-division multiplexing enables flexible scheduling of display and communication functions.

[0062] This embodiment of the disclosure provides a hardware foundation for realizing various communication strategies such as multi-channel parallel communication, signal enhancement, and spatial diversity by setting at least two light-emitting elements 10 to be electrically connected to different gate driving circuits 30.

[0063] Continue to refer to Figure 9 and Figure 10 In some alternative embodiments, the first LIFI signal and the second LIFI signal are the same.

[0064] Specifically, the first light-emitting element 11 is used to emit a first LIFI signal, and the second light-emitting element 12 is used to emit a second LIFI signal. The first light-emitting element 11 and the second light-emitting element 12 are electrically connected to different gate driving circuits 30, so they can emit their respective LIFI signals independently. The first LIFI signal and the second LIFI signal are the same.

[0065] The first and second LIFI signals being identical means that they are completely identical in timing waveform, i.e., they have the same order of light-emitting and non-light-emitting phases, and the duration of each corresponding phase is also the same. In other words, at the same moment, the first light-emitting element 11 and the second light-emitting element 12 emit light simultaneously or simultaneously do not emit light, and the duration of light emission and non-emission is the same. In this way, the two light-emitting elements 10 emit light signals with exactly the same rhythm and encoding method. By having at least two light-emitting elements 10 simultaneously transmit the same LIFI signal, the light signals from different light-emitting elements 10 are spatially superimposed at the receiving end, increasing the total received optical power, which is equivalent to increasing the transmission power of the LIFI signal. Under the same communication distance, the signal-to-noise ratio at the receiving end is improved; under the same signal-to-noise ratio requirement, the communication distance can be further extended. This effectively improves the reliability of communication. Furthermore, since the first light-emitting element 11 and the second light-emitting element 12 are in different spatial positions in the display panel, the fading, obstruction, and interference experienced by the light signals emitted by them during transmission are spatially uncorrelated. By performing diversity and combination processing on the two signals, the receiver can effectively combat channel fading, reduce the bit error rate, and improve communication reliability. It is particularly suitable for scenarios with obstructions, receiver movement, or complex channel environments.

[0066] From a signal perspective, both the first and second LIFI signals correspond to the same binary encoded information, meaning they carry identical data content. The first light-emitting element 11 and the second light-emitting element 12 independently generate LIFI signals with alternating light-emitting and non-light-emitting stages based on this same binary encoded information, maintaining temporal synchronization.

[0067] To ensure that the first and second LIFI signals are identical, the first gate driving circuit 31, electrically connected to the first light-emitting element 11, and the second gate driving circuit 32, electrically connected to the second light-emitting element 12, need to be coordinated under control. Specifically, the timing controller can provide the same timing control signal to the first gate driving circuit 31 and the second gate driving circuit 32, so that the first gate driving circuit 31 and the second gate driving circuit 32 output scan signals with the same waveform. The pixel circuit 20 corresponding to the first light-emitting element 11 controls the first light-emitting element 11 to emit light or not to emit light according to the scan signal output by the first gate driving circuit 31, and the pixel circuit 20 corresponding to the second light-emitting element 12 controls the second light-emitting element 12 to emit light or not to emit light according to the scan signal output by the second gate driving circuit 32. Since the scan signal waveforms output by the two gate driving circuits 30 are identical, the LIFI signals emitted by the first light-emitting element 11 and the second light-emitting element 12 are also identical.

[0068] Optionally, the first light-emitting element 11 and the second light-emitting element 12 can be located in the same row and arranged adjacent to each other in the display panel. When the two are arranged adjacent to each other, the same emitted LIFI signals are close to each other in space, which is beneficial to forming a stronger combined optical signal at the receiving end and improving the signal-to-noise ratio of the received signal.

[0069] Optionally, the number of light-emitting elements 10 emitting the same LIFI signal can be more than two. For example, there could be three, four, a row, a column, or even all the light-emitting elements 10 of the entire display panel emitting the same LIFI signal. By increasing the number of light-emitting elements 10 emitting the same LIFI signal, the overall transmission power and coverage of the LIFI signal can be multiplied.

[0070] Optionally, during the same frame display time of the display panel, in addition to the first light-emitting element 11 and the second light-emitting element 12 that emit the same LIFI signal, there may be other light-emitting elements 10 that emit LIFI signals different from the same LIFI signal, so as to achieve signal enhancement while taking into account multi-channel data transmission.

[0071] Optionally, the first light-emitting element 11 and the second light-emitting element 12 may emit the same LIFI signal during all frame display times of the display panel, or they may emit the same LIFI signal only during some frame display times. For example, in some frames, the first light-emitting element 11 and the second light-emitting element 12 simultaneously send the same important control information (such as device pairing information, synchronization information, etc.) to ensure that the information is reliably received; while in other frames, they may send different data information respectively.

[0072] Optionally, when the first LIFI signal and the second LIFI signal are identical, the same binary encoded information corresponding to them may include, but is not limited to, device identification information, control command information, audio data information, video data information, file data information, or sensor data information. Since the two light-emitting elements 10 simultaneously transmit the same information, the reliability of information transmission is significantly improved.

[0073] Optionally, the brightness of the first light-emitting element 11 and the second light-emitting element 12 can be the same or different. When the brightness is the same, the optical power of the two optical signals at the receiving end is approximately equal, which facilitates merging processing. When the brightness is different, a primary and secondary signal can be formed, which facilitates the receiving end to further improve the signal quality through a diversity combining algorithm.

[0074] It is important to understand that although the first and second LiFi signals are the same, the first light-emitting element 11 and the second light-emitting element 12 are located in different positions within the display panel. Therefore, the path loss, noise, and interference experienced by their light signals as they propagate through space to the receiving end may differ. The receiving end can receive these two light signals from different spatial locations separately and can process them collaboratively, thereby achieving better reception than a single signal.

[0075] Figure 11 This is a schematic diagram of yet another type of LIFI signal provided in this disclosure, see reference. Figure 11 In some alternative embodiments, the first LIFI signal and the second LIFI signal are different.

[0076] Specifically, the first light-emitting element 11 is used to emit a first LIFI signal, and the second light-emitting element 12 is used to emit a second LIFI signal. The first light-emitting element 11 and the second light-emitting element 12 are electrically connected to different gate driving circuits 30, so they can independently emit their respective LIFI signals. The first LIFI signal and the second LIFI signal can be different. By simultaneously transmitting different LIFI signals through the first light-emitting element 11 and the second light-emitting element 12, two different data contents can be transmitted within one frame display time, doubling the data transmission rate compared to the single-light-emitting element scheme. When more light-emitting elements 10 participate in parallel transmission, the rate can be further increased, effectively breaking through the rate bottleneck of single-channel LIFI communication and meeting the application requirements of high-speed data transmission.

[0077] It should be noted that the difference between the first and second LIFI signals refers to the fact that their timing waveforms are not completely identical. Specifically, they have different sequences of luminous and non-luminous phases, and / or the durations of corresponding phases are not entirely the same. In other words, at any given moment, the first luminous element 11 and the second luminous element 12 may have one emitting light while the other does not, or they may both emit light simultaneously but for different durations, or they may both be non-luminous but for different durations. The two luminous elements 10 emit their respective light signals with different rhythms and / or encoding methods.

[0078] From a signal perspective, the first LIFI signal corresponds to the first binary encoded information, and the second LIFI signal corresponds to the second binary encoded information. The first and second binary encoded information are different, meaning they carry different data contents. The first light-emitting element 11 and the second light-emitting element 12 independently generate LIFI signals with alternating light-emitting and non-light-emitting stages based on their respective corresponding binary encoded information.

[0079] To achieve a difference between the first and second LIFI signals, the first gate driving circuit 31, electrically connected to the first light-emitting element 11, and the second gate driving circuit 32, electrically connected to the second light-emitting element 12, need to be independently controlled. Specifically, the timing controller can provide different timing control signals to the first gate driving circuit 31 and the second gate driving circuit 32, causing them to output scan signals with different waveforms. The pixel circuit 20 corresponding to the first light-emitting element 11 controls the first light-emitting element 11 to emit light or not to emit light according to the scan signal output by the first gate driving circuit 31, and the pixel circuit 20 corresponding to the second light-emitting element 12 controls the second light-emitting element 12 to emit light or not to emit light according to the scan signal output by the second gate driving circuit 32. Since the scan signal waveforms output by the two gate driving circuits 30 are different, the LIFI signals emitted by the first light-emitting element 11 and the second light-emitting element 12 are also different.

[0080] Optionally, the first LIFI signal and the second LIFI signal can have different encoded content. That is, the binary code corresponding to the sequence of the luminous and non-luminous phases of the first LIFI signal is different from the corresponding sequence of the second LIFI signal. For example, the binary code corresponding to the first LIFI signal is "1010", and the binary code corresponding to the second LIFI signal is "1100". The two have different encoded content and carry different data information.

[0081] Optionally, the first LIFI signal and the second LIFI signal can have the same encoded content but a phase difference in timing. That is, the first LIFI signal and the second LIFI signal have the same binary code, but they are misaligned on the time axis, and the emission states of the two light-emitting elements 10 are different at the same time. This configuration can reduce mutual interference between the two signals and is also beneficial for diversity reception at the receiving end.

[0082] Optionally, the first LiFi signal and the second LiFi signal can have different data transmission rates. That is, the switching frequency of the first LiFi signal during the light-emitting and non-light-emitting phases is different from that of the second LiFi signal. For example, the first LiFi signal has a higher switching frequency, suitable for transmitting high-speed data; the second LiFi signal has a lower switching frequency, suitable for transmitting low-speed data with high reliability requirements. In this way, the display panel can simultaneously meet the needs of different data transmission rates.

[0083] Optionally, the first LIFI signal and the second LIFI signal can have different frame structures. For example, the first LIFI signal may contain 8 emitting phases and 8 non-emitting phases within one frame display time, while the second LIFI signal may contain 16 emitting phases and 16 non-emitting phases within the same frame display time. By setting different frame structures, the communication parameters of each signal can be flexibly adjusted.

[0084] Optionally, during the same frame display time of the display panel, in addition to the first light-emitting element 11 and the second light-emitting element 12 that emit different LIFI signals, there may be other light-emitting elements 10 that emit the same LIFI signal as both of them to enhance the strength of a certain signal, or emit LIFI signals that are different from both of them to further increase the number of data channels for parallel transmission.

[0085] Optionally, the first light-emitting element 11 and the second light-emitting element 12 can emit different LIFI signals during all frame display times of the display panel, or they can emit different LIFI signals only during some frame display times. For example, during large data transmission, they can simultaneously transmit different data content to improve the data transmission rate; during idle periods, they can stop transmitting or transmit the same low-rate signal to save power consumption.

[0086] Continue to refer to Figure 9 In some alternative embodiments, the light emission color of the first light-emitting element 31 is different from that of the second light-emitting element 32.

[0087] In a display panel, different light-emitting elements 10 can emit different colors to achieve color display. For example, a display panel typically includes red, green, and blue light-emitting elements, arranged in a certain pattern, and achieving full-color display through color mixing. The first light-emitting element 11 and the second light-emitting element 12 can be two light-emitting elements 10 with different colors in the display panel. Wavelength division multiplexing is achieved, significantly improving communication capacity. Because light signals of different colors have different wavelengths, they hardly interfere with each other during spatial propagation. Therefore, by simultaneously emitting LIFI signals using light-emitting elements 10 of different colors, multiple data streams can be transmitted in parallel in the same spatial channel, multiplying the communication capacity. For example, using red, green, and blue light-emitting elements 10 simultaneously for LIFI communication can achieve a communication capacity three times that of a monochrome scheme. Furthermore, it simplifies signal separation at the receiving end. Because different colors of light signals have significant differences in wavelength, the receiving end can effectively separate the signals at the optical level by setting different colored filters, without the need for complex signal processing algorithms. This optical filtering method is simple to implement, low in cost, and provides good separation, which helps reduce the design complexity and cost of the receiver. At the same time, it improves the anti-interference capability of the communication system. Different colored light signals have different wavelengths, and are subject to different interferences during transmission (such as ambient light interference, interference from other light sources, etc.). By utilizing different colored light signals for communication, the impact of interference on different communication channels can be dispersed, improving the robustness and reliability of the entire communication system.

[0088] It should be noted that different emission colors refer to the visible light emitted by the first light-emitting element 11 and the second light-emitting element 12 having different wavelengths. Specifically, different emission colors correspond to different spectral bands. For example, the wavelength range of red light is approximately 620nm to 750nm, the wavelength range of green light is approximately 495nm to 570nm, and the wavelength range of blue light is approximately 450nm to 495nm. The first light-emitting element 11 and the second light-emitting element 12 can be any two of the aforementioned different colors, for example, the first light-emitting element 11 is a red light-emitting element and the second light-emitting element 12 is a blue light-emitting element; or the first light-emitting element 11 is a green light-emitting element and the second light-emitting element 12 is a red light-emitting element; or the first light-emitting element 11 is a blue light-emitting element and the second light-emitting element 12 is a green light-emitting element.

[0089] Optionally, the display panel may also include a third light-emitting element, whose light-emitting color is different from that of the first light-emitting element 11 and the second light-emitting element 12. For example, the first light-emitting element 11 is a red light-emitting element, the second light-emitting element 12 is a green light-emitting element, and the third light-emitting element is a blue light-emitting element. The three light-emitting elements 10 emit LIFI signals of different colors respectively, realizing three-way parallel communication.

[0090] Continue to refer to Figure 9 In some optional embodiments, the light emission color of the first light-emitting element 31 is the same as that of the second light-emitting element 32.

[0091] Specifically, the first light-emitting element 11 emits a first LIFI signal, and the second light-emitting element 12 emits a second LIFI signal. The first and second light-emitting elements 11 and 12 are electrically connected to different gate driving circuits 30, allowing them to emit their respective LIFI signals independently. The first light-emitting element 31 emits the same color as the second light-emitting element 32. When the two light signals with the same color propagate to the receiving end in space, they are superimposed in phase. The total optical power received by the receiving end is the sum of the two signals, effectively increasing the transmission power of the LIFI signal. Because the two light signals have the same wavelength, the superposition efficiency is high, and there is no loss due to dispersion or wavelength mismatch. This extends the communication distance and improves signal quality, making it particularly suitable for long-distance communication or scenarios with obstructions.

[0092] It should be noted that "same luminous color" means that the visible light emitted by the first luminous element 11 and the second luminous element 12 has the same or similar wavelength, and appears as the same color to the human eye. For example, the first luminous element 11 and the second luminous element 12 can both be red luminous elements, or both be green luminous elements, or both be blue luminous elements, or both be white luminous elements, or both be any other luminous elements of the same color.

[0093] Figure 12 This is a flowchart of a display panel driving method provided in this disclosure, see reference. Figure 12 This disclosure provides a driving method for a display panel, applied to the display panel provided in this disclosure. The driving method includes: Step S10: During at least one frame of display time on the display panel, control at least one light-emitting element to emit a LIFI signal, where one LIFI signal corresponds to one binary encoded information; The LIFI signal has multiple alternating light-emitting stages and multiple non-light-emitting stages. The light-emitting stage corresponds to 1 in the binary code, during which the light-emitting element emits light; the non-light-emitting stage corresponds to 0 in the binary code, during which the light-emitting element does not emit light.

[0094] Specifically, the driving method for the display panel provided in this disclosure is applied to the display panel provided in this disclosure, and the display panel includes a plurality of light-emitting elements 10.

[0095] During at least one frame of display time on the display panel, at least one light-emitting element 10 is controlled to emit a LiFi signal. It should be noted that "one frame of display time" refers to the time required for the display panel to refresh one complete frame of the image. For example, for a display panel with a refresh rate of 60Hz, one frame of display time is approximately 16.67ms. "At least one light-emitting element 10" means that a single light-emitting element 10 can emit a LiFi signal, or multiple light-emitting elements 10 can emit LiFi signals simultaneously; this disclosure does not specifically limit this.

[0096] One LIFI signal corresponds to one binary encoded information. That is, the data to be transmitted is first converted into binary code (a sequence of 0s and 1s), and then the light-emitting element 10 sends out the binary encoded information in the form of an optical signal. Figure 1 An example is shown where the binary encoded information can be one-dimensional binary encoded information. (Reference) Figure 3 , Figure 3 This is a schematic diagram of another LIFI signal provided in this disclosure. The binary encoded information can also be two-dimensional binary encoded information, which can be determined according to the actual communication protocol and data format.

[0097] The LIFI signal has multiple alternating emission phases t1 and multiple non-emission phases t2. In other words, in the time domain, emission phase t1 (the period when the light-emitting element 10 is lit) and non-emission phase t2 (the period when the light-emitting element 10 is off) alternate sequentially, forming a signal waveform of pulse width modulation (PWM) or a similar form. Emission phase t1 corresponds to 1 in binary code; during emission phase t1, the light-emitting element 10 emits light. Non-emission phase t2 corresponds to 0 in binary code; during non-emission phase t2, the light-emitting element 10 does not emit light. Through this configuration, the light-emitting element 10 represents 1 and 0 in binary information with two distinct light intensity states: emitting and not emitting light, thereby transmitting the binary encoded information in the form of an optical signal.

[0098] Since the flicker frequency of the light-emitting element 10 can be set to a very high level (e.g., reaching kHz or even MHz), the human eye cannot perceive such high-frequency changes in brightness. Therefore, while sending LIFI signals, the light-emitting element 10 can still perform the display function normally without adversely affecting the user's visual experience.

[0099] Optionally, the same light-emitting element 10 can emit the same or different LIFI signals during different frame display times, thereby realizing the function of repeatedly sending the same information or continuously sending different information. For example, during consecutive multi-frame display times, the light-emitting element 10 can repeatedly send the same LIFI signal to increase the probability of correct reception at the receiving end; it can also send different LIFI signals in different frames to achieve the transmission of a larger amount of data.

[0100] The display panel driving method provided in this disclosure controls at least one light-emitting element 10 to emit a LIFI signal corresponding to binary encoded information during at least one frame of display time on the display panel. The LIFI signal has alternating light-emitting phase t1 and non-light-emitting phase t2, corresponding to 1 and 0 in the binary encoding, respectively. This allows the display panel to transmit the LIFI signal in a simple and efficient manner while simultaneously displaying the image. The signal structure is clear, facilitating encoding and decoding. The alternating light-emitting phase t1 and non-light-emitting phase t2 of the LIFI signal, corresponding to 1 and 0 in the binary encoding, is logically intuitive and simple in encoding. Data transmission can be achieved without complex modulation techniques, reducing the system's implementation difficulty and cost. Simultaneously, it does not affect the normal display effect. Since the brightness variation frequency of the light-emitting element 10 can be set above the range of human eye perception, the light-emitting element 10 does not affect the normal display quality of the display panel while transmitting the LIFI signal. Users will not perceive any additional flicker while viewing the display, achieving integrated display and communication functions.

[0101] In some alternative embodiments, the driving method further includes: The LIFI signal is adjusted by regulating the duration of the luminescent and / or non-luminescent phases.

[0102] Specifically, the essential characteristic of a LIFI signal lies in the alternation of luminescent and non-luminescent phases, as well as the duration of each phase on the time axis. By adjusting the duration of the luminescent phase and / or the non-luminescent phase, multi-dimensional adjustment and flexible control of the LIFI signal can be achieved.

[0103] It should be noted that adjusting the duration of the light-emitting phase refers to changing the duration of one or more light-emitting phases on the time axis. As mentioned earlier, the light-emitting phase corresponds to 1 in binary code, during which the light-emitting element emits light. By changing the duration of the light-emitting phase, the time width occupied by 1 in binary code can be adjusted. Similarly, adjusting the duration of the non-light-emitting phase refers to changing the duration of one or more non-light-emitting phases on the time axis. The non-light-emitting phase corresponds to 0 in binary code, and by changing the duration of the non-light-emitting phase, the time width occupied by 0 in binary code can be adjusted.

[0104] The encoded content of a LIFI signal can be adjusted by modifying the duration of the emitting and / or non-emitting phases. When the duration of the emitting phase remains constant while the duration of the non-emitting phase changes, or when the duration of the emitting phase changes while the duration of the non-emitting phase remains constant, or when both change simultaneously, the relative positions and order of the emitting and non-emitting phases on the time axis will change, thereby altering the distribution of 1s and 0s, and consequently changing the binary encoded information corresponding to the LIFI signal. For example, if a LIFI signal originally corresponds to the binary code 1010, by extending the duration of the second non-emitting phase from T to 2T, the binary code of the signal may become 1001 or another code, depending on the timing relationship after the change in the duration of each phase. This adjustment method allows for the transmission of different data.

[0105] The data transmission rate of a LiFi signal can also be adjusted by regulating the duration of the luminous and / or non-luminous phases. Shortening the duration of the luminous and / or non-luminous phases allows for more luminous and non-luminous phases to be accommodated within the same frame display time, meaning more bits can be transmitted within a single frame, thus increasing the data transmission rate. Conversely, extending the duration of the luminous and / or non-luminous phases reduces the number of bits that can be accommodated within a single frame display time, lowering the data transmission rate, but potentially enhancing the signal's anti-interference capability. Therefore, duration adjustment allows for a flexible trade-off between communication rate and communication reliability.

[0106] In some alternative embodiments, the driving method further includes: The LIFI signal is adjusted by changing the number of light-emitting elements that emit the same LIFI signal.

[0107] Specifically, display panels typically include a large number of light-emitting elements arranged in an array. These elements can be controlled independently or in groups. The LiFi signal can be adjusted by changing the number of elements emitting the same signal. The emission intensity of the LiFi signal can be directly increased or decreased by increasing or decreasing the number of elements emitting the same signal. This adjustment method is simple and responsive, requiring no change to the driving current or voltage of the light-emitting elements, thus avoiding adverse effects on the lifespan of the light-emitting elements and the display effect caused by changes in driving conditions. Signal strength can be flexibly adjusted to meet different communication distances and channel environments, ensuring communication reliability. Furthermore, by distributing the light-emitting elements emitting the same LiFi signal in different areas of the display panel or concentrating them in a specific area, the spatial coverage of the LiFi signal can be flexibly adjusted. When broadcasting to the entire space is required, the light-emitting elements can be dispersed to expand coverage; when directional communication is required in a specific direction or at a specific receiver, the light-emitting elements can be concentrated to enhance the signal strength in that direction, achieving an optimal balance between communication coverage and communication efficiency.

[0108] It should be noted that emitting the same LIFI signal means that multiple light-emitting elements emit light in exactly the same timing and encoding manner. That is, at the same time, these light-emitting elements emit light simultaneously or simultaneously do not emit light, and the duration of emission and non-emission are the same. These light-emitting elements jointly transmit the same binary encoded information. At the receiving end, the light signals from each light-emitting element are superimposed to form a merged LIFI signal.

[0109] Adjusting the number of LEDs emitting the same LIFI signal refers to changing the number of LEDs participating in transmitting that LIFI signal. For example, in one state, there might be 10 LEDs emitting the same LIFI signal; in another state, this might increase to 20 LEDs; and in yet another state, it might decrease to 5 LEDs. The number of LEDs can be dynamically adjusted according to actual communication needs.

[0110] Optional, see reference Figure 13 , Figure 13 This is a schematic diagram of another LIFI signal provided in this disclosure. In each emitting and non-emitting stage of the LIFI signal, the number of light-emitting elements emitting the LIFI signal can be adjusted. Thus, in each emitting stage, the number of light-emitting elements emitting the LIFI signal can be the same or different; in each non-emitting stage, the number of light-emitting elements emitting the LIFI signal can be the same or different.

[0111] like Figure 14 As shown, Figure 14 This is a plan view of a display device provided in this disclosure. The embodiment of this disclosure provides a display device 1000, which includes a display panel 100 provided in this disclosure embodiment. It is understood that the display device provided in this disclosure embodiment can be any electronic product with display function, including but not limited to the following categories: mobile phones, televisions, laptops, desktop monitors, tablet computers, digital cameras, smart bracelets, smart glasses, in-vehicle displays, medical devices, industrial control equipment, touch interactive terminals, etc. This disclosure embodiment does not impose any special limitations on these categories.

[0112] The display device provided in this disclosure has the same technical features as the display panel provided in the above embodiments, so it can also solve the same technical problems and achieve the same technical effects.

[0113] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0114] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display panel, characterized in that, include: Multiple light-emitting elements; During at least one frame of display time on the display panel, at least one of the light-emitting elements is used to emit a LIFI signal, and one LIFI signal corresponds to one binary encoded information; The LIFI signal has multiple alternating light-emitting stages and multiple non-light-emitting stages, wherein the light-emitting stage corresponds to 1 in binary code, and the light-emitting element emits light during the light-emitting stage; The non-light-emitting stage corresponds to 0 in binary code, during which the light-emitting element does not emit light.

2. The display panel according to claim 1, characterized in that, Within one frame of display time on the display panel, the duration of the last light-emitting phase in the LIFI signal is shorter than the duration of the other light-emitting phases.

3. The display panel according to claim 1, characterized in that, In the same LIFI signal, at least two of the light emission stages have the same duration, and / or at least two of the light emission stages have different durations; And / or, at least two of the non-luminescent phases have the same duration, and / or, at least two of the non-luminescent phases have different durations.

4. The display panel according to claim 1, characterized in that, The display panel includes multiple pixel circuits and multiple gate driving circuits. Each pixel circuit is electrically connected to a corresponding light-emitting element. Each pixel circuit is also electrically connected to a gate driving circuit. The gate driving circuit is used to transmit a scan signal to the pixel circuit it is electrically connected to. The pixel circuit is used to control the light-emitting element it is electrically connected to to emit a LIFI signal based on the scan signal.

5. The display panel according to claim 4, characterized in that, During at least one frame of display time on the display panel, at least two of the light-emitting elements are used to emit LIFI signals; The light-emitting element includes a first light-emitting element and a second light-emitting element, wherein the first light-emitting element is used to emit a first LIFI signal and the second light-emitting element is used to emit a second LIFI signal; The first light-emitting element and the second light-emitting element are electrically connected to different gate driving circuits, respectively.

6. The display panel according to claim 5, characterized in that, The first LIFI signal and the second LIFI signal are the same.

7. The display panel according to claim 5, characterized in that, The first LIFI signal and the second LIFI signal are different.

8. The display panel according to claim 6 or 7, characterized in that, The first light-emitting element emits a different color than the second light-emitting element.

9. The display panel according to claim 6 or 7, characterized in that, The first light-emitting element emits the same color as the second light-emitting element.

10. The display panel according to claim 1, characterized in that, The light-emitting element is a mini-LED or a Micro-LED.

11. A driving method for a display panel, characterized in that, Applied to the display panel according to any one of claims 1-10, the driving method includes: During at least one frame of display time on the display panel, at least one of the light-emitting elements is controlled to emit a LIFI signal, and one LIFI signal corresponds to one binary encoded information; The LIFI signal has multiple alternating light-emitting stages and multiple non-light-emitting stages. The light-emitting stage corresponds to 1 in binary code, during which the light-emitting element emits light; the non-light-emitting stage corresponds to 0 in binary code, during which the light-emitting element does not emit light.

12. The driving method for a display panel according to claim 11, characterized in that, Also includes: The LIFI signal is adjusted by regulating the duration of the luminescent phase and / or the non-luminescent phase.

13. The driving method for a display panel according to claim 11, characterized in that, Also includes: The LIFI signal is adjusted by regulating the number of light-emitting elements that emit the same LIFI signal.

14. A display device, characterized in that, The display device includes the display panel as described in any one of claims 1-10.

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