Display module, control method for display module, storage medium and display apparatus

Abstract

Disclosed are a display module (100), a control method for the display module (100), a storage medium and a display apparatus. The display module (100) comprises a light-emitting region (10) and a control module (50). The light-emitting region (10) comprises at least one sub-region (13), each sub-region (13) comprising a plurality of light-emitting pixels (16). The control module (50) is electrically connected to the light-emitting region (10), and the control module (50) is configured to: within the time of one frame, control at least one light-emitting pixel (16) in each sub-region (13) to achieve delayed illumination and / or premature extinguishing, so as to shorten the simultaneous light emission duration of all of the light-emitting pixels (16) in the sub-regions (13), and / or control at least one sub-region (13) to achieve delayed illumination and / or premature extinguishing, so as to shorten the simultaneous light emission duration of all of the sub-regions (13).

Description

Display module, control method for display module, storage medium and display device

[0001] Priority information

[0002] This application claims priority and benefits to patent application No. 202411856518.5, filed with the China National Intellectual Property Administration on December 16, 2024, the entire contents of which are incorporated herein by reference as if copied herein. Technical Field

[0003] This application relates to the field of control technology, specifically to a display module, a control method for the display module, a storage medium, and a display device. Background Technology

[0004] In display devices, voltage drops in transmission lines can cause voltage differences between different nodes. These voltage differences across the light-emitting elements (such as LEDs) in the display array can lead to discrepancies between the actual luminous brightness and the expected brightness, resulting in display problems. As the PPI (pixels per inch) of the display device increases, the display problems caused by voltage drops become more pronounced. Summary of the Invention

[0005] This application provides a display module, a control method for the display module, a storage medium, and a display device to solve at least one of the aforementioned technical problems.

[0006] An embodiment of this application provides a display module, which includes:

[0007] A light-emitting area, the light-emitting area comprising at least one sub-region, each sub-region comprising a plurality of light-emitting pixels;

[0008] A control module electrically connected to the light-emitting area is configured to: within one frame time, control at least one light-emitting pixel in each sub-region to delay light emission and / or turn off early, so as to reduce the time when all light-emitting pixels in the sub-region emit light simultaneously, and / or;

[0009] Control at least one of the sub-regions to emit light with a delay and / or extinguish light early, so as to reduce the time when all the sub-regions emit light simultaneously.

[0010] In the aforementioned display module, by controlling at least one luminous pixel in each sub-region to delay luminescence and / or prematurely extinguish luminescence within one frame time to reduce the time during which all luminous pixels in the sub-region emit luminescence simultaneously, and / or by controlling at least one sub-region to delay luminescence and / or prematurely extinguish luminescence to reduce the time during which all sub-regions emit luminescence simultaneously, the duration of the maximum current can be reduced within one frame time, thereby reducing the impact of the brightness difference of the luminous pixels caused by the maximum voltage drop to a certain extent, thus optimizing the display difference problem.

[0011] In some embodiments, the control module is configured to: within one frame time, adjust the start and / or end point of the light emission time of at least one light-emitting pixel in the sub-region according to a first preset duration, so that at least one light-emitting pixel in the sub-region emits light with a delayed time and / or turns off early, and / or;

[0012] The starting point and / or ending point of the light emission time of at least one light-emitting pixel in the sub-region are adjusted according to the first preset duration and the light emission time of the adjacent light-emitting pixels, so that at least one light-emitting pixel in the sub-region emits light with a delay and / or turns off early.

[0013] In the aforementioned display module, by delaying the emission of at least one luminous pixel in the sub-region and / or extinguishing it prematurely for a first preset duration, the duration of the maximum current can be effectively reduced, thereby reducing the impact of the maximum voltage drop on display differences.

[0014] In some implementations, the control module is configured to: within one frame, adjust the start and / or end of the emission time of at least one of the sub-regions according to a second preset duration, so that at least one of the sub-regions emits light with a delay and / or extinguishes it in advance, and / or;

[0015] The starting point and / or ending point of the light emission time of at least one of the sub-regions are adjusted according to the second preset duration and the light emission time of the adjacent sub-regions, so that at least one of the sub-regions emits light with a delay and / or extinguishes light in advance.

[0016] In the aforementioned display module, by delaying the emission of light and / or extinguishing it in advance in at least one sub-region within the display module through a second preset duration, the duration of the maximum current can be effectively reduced, thereby reducing the impact of the maximum voltage drop on display differences.

[0017] In some embodiments, the control module includes at least one control unit, each control unit being electrically connected to a corresponding sub-region to control the emission time of the light-emitting pixels in the corresponding sub-region.

[0018] In the aforementioned display module, each control unit can independently adjust the light emission state of the light-emitting pixels in its corresponding sub-region, which improves the accuracy and flexibility of control to a certain extent.

[0019] In some embodiments, the light-emitting pixel includes:

[0020] A pixel circuit, which is electrically connected to the control unit;

[0021] A light-emitting element, wherein the pixel circuit is electrically connected to the light-emitting element;

[0022] The control unit is configured to send a control signal to the pixel circuit, and the pixel circuit is configured to control the light emission time of the light-emitting element according to the control signal.

[0023] In the aforementioned display module, the pixel circuit adjusts the light-emitting state of the light-emitting element according to the received control signal, thereby displaying the desired image or information on the display module.

[0024] In some embodiments, the control signal includes a grayscale counting signal, the control unit includes a light-emitting counter, the pixel circuit includes a PWM modulation module, the light-emitting counter is configured to output the grayscale counting signal, and the PWM modulation module is configured to control the pulse width of the PWM signal according to the grayscale counting signal and pixel data, wherein the pulse width of the PWM signal is proportional to the light-emitting time of the light-emitting pixel.

[0025] In the aforementioned display module, the PWM signal, by comparing the grayscale count signal output by the light-emitting counter with the pixel data, can change the pulse width to adjust the light-emitting time of the light-emitting pixel, thereby achieving precise control of the light intensity to a certain extent.

[0026] In some implementations, the grayscale counting signal has a counting mode including a forward counting mode and a reverse counting mode.

[0027] The above display module can adapt to different light emission requirements by combining forward counting mode and reverse counting mode.

[0028] In some embodiments, the control module includes:

[0029] A timing module, which is electrically connected to the control unit, is configured to configure the light emission parameters of each light-emitting pixel;

[0030] The delay module and the light emission counter are electrically connected to the timing module. The delay module and the light emission counter are configured to control the delay time of the light emission of the light emission pixel and / or the early extinguishing time of the light emission pixel according to the light emission parameters of the light emission pixel.

[0031] In the above display module, the delay time for each light-emitting pixel and / or the time for premature extinguishing can be set according to preset light-emitting parameters.

[0032] In some embodiments, a method for controlling a display module is characterized in that the display module includes a light-emitting area, the light-emitting area includes at least one sub-region, and each sub-region includes a plurality of light-emitting pixels;

[0033] The control method includes: within one frame, controlling at least one of the light-emitting pixels in each sub-region to emit light with a delayed time and / or to turn off early, so as to reduce the time when all the light-emitting pixels in the sub-region emit light simultaneously, and / or;

[0034] Control at least one of the sub-regions to emit light with a delay and / or extinguish light early, so as to reduce the time when all the sub-regions emit light simultaneously.

[0035] In the above control method, by controlling at least one luminescent pixel in each sub-region to delay luminescence and / or turn off early to reduce the time when all luminescent pixels in the sub-region emit light simultaneously, and / or by controlling at least one sub-region to delay luminescence and / or turn off early to reduce the time when all sub-regions emit light simultaneously, the duration of the maximum high current can be reduced within one frame, thereby reducing the impact of the difference in luminescence brightness of luminescent pixels caused by the maximum voltage drop, and thus optimizing the display difference problem.

[0036] In some embodiments, the control method includes: within one frame time, adjusting the start and / or end point of the emission time of at least one of the light-emitting pixels in the sub-region according to a first preset duration, so that at least one of the light-emitting pixels in the sub-region emits light with a delay, and / or;

[0037] The starting point and / or ending point of the light emission time of at least one light-emitting pixel in the sub-region are adjusted according to the first preset duration and the light emission time of the adjacent light-emitting pixels, so that at least one light-emitting pixel in the sub-region emits light with a delay and / or extinguishes light prematurely.

[0038] In the above control method, by delaying the emission of at least one light-emitting pixel in the sub-region for a first preset duration, the duration of the maximum current can be effectively reduced, thereby reducing the impact of the maximum voltage drop on the display difference.

[0039] In some embodiments, the control method includes: adjusting the start and / or end point of the emission time of at least one of the sub-regions, so that at least one of the sub-regions emits light with a delay and / or extinguishes light prematurely, and / or;

[0040] Adjust the delayed emission and / or early extinguishing of at least one of the sub-regions according to the second preset duration and the emission time of the adjacent sub-regions.

[0041] In the above control method, by delaying the emission of at least one luminous pixel in the sub-region and / or extinguishing it in advance by using a second preset duration, the duration of the maximum current can be effectively reduced, thereby reducing the impact of the maximum voltage drop on the display difference.

[0042] In some embodiments, the light-emitting pixel includes a pixel circuit and a light-emitting element, wherein the pixel circuit is electrically connected to the light-emitting element;

[0043] The control method includes: sending a control signal to the pixel circuit so that the pixel circuit controls the light-emitting element to emit light according to the control signal.

[0044] In the above control method, the pixel circuit adjusts the light-emitting state of the light-emitting element according to the received control signal, so that the desired image or information can be presented on the display module.

[0045] In some embodiments, the control signal includes a grayscale counting signal, and the pixel circuit includes a PWM modulation module;

[0046] The control method includes: outputting the grayscale counting signal to the PWM modulation module so that the PWM modulation module controls the pulse width of the PWM signal according to the grayscale counting signal and pixel data, wherein the pulse width of the PWM signal is proportional to the light emission time of the light-emitting pixel.

[0047] In the above control method, the pulse width can be changed to adjust the emission time of the light-emitting pixel, thereby achieving precise control of the emission intensity to a certain extent.

[0048] In some embodiments, the control method includes: counting gray levels according to a counting mode signal, the counting mode signal including a forward counting mode signal and a reverse counting mode signal.

[0049] The above control methods improve the flexibility of controlling the light emission state of the light-emitting pixels to a certain extent.

[0050] In some implementations, the duration of delayed emission and / or the duration of early extinguishing of each light-emitting pixel are configured according to the emission parameters of each light-emitting pixel.

[0051] The above control method can control the delayed emission of light from the light-emitting pixels.

[0052] This application provides a computer-readable storage medium storing a computer program, which, when executed by a processor, implements the steps of the control method described above.

[0053] This application provides a display device, which includes:

[0054] Processor, and;

[0055] A memory storing a computer program, which, when executed by the processor, implements the steps of the control method for the display module described in any of the above embodiments.

[0056] An embodiment of this application provides a display device including the display module described in any of the above embodiments.

[0057] In the aforementioned display device and computer-readable storage medium, by controlling at least one light-emitting pixel in each sub-region to delay emitting light and / or turn off light early to reduce the time when all light-emitting pixels in the sub-region emit light simultaneously, and / or by controlling at least one sub-region to delay emitting light and / or turn off light early to reduce the time when all sub-regions emit light simultaneously, the duration of the maximum current can be reduced within a frame, thereby reducing the impact of the brightness difference of the light-emitting pixels caused by the maximum voltage drop, thus optimizing the display difference problem.

[0058] Additional aspects and advantages of the embodiments of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0059] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0060] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0061] And easy to understand, among which:

[0062] Figure 1 is a schematic diagram of the display module according to an embodiment of this application;

[0063] Figure 2 is a circuit diagram of a sub-region of an embodiment of this application;

[0064] Figure 3 is a circuit diagram of the display module according to an embodiment of this application;

[0065] Figure 4a is a circuit diagram of the control module according to an embodiment of this application;

[0066] Figure 4b is another circuit diagram of the control module according to an embodiment of this application;

[0067] Figure 5 is a timing diagram of the light emission counting signal, light emission clock signal, and enable signal in an embodiment of this application;

[0068] Figure 6 is a schematic diagram of some modules of the display module according to an embodiment of this application;

[0069] Figure 7 is a signal waveform and level diagram of the display module according to an embodiment of this application;

[0070] Figure 8 is another signal waveform and level diagram of the display module according to an embodiment of this application;

[0071] Figure 9 is a schematic diagram of the display device according to an embodiment of this application;

[0072] Figure 10 shows the signal waveforms and level diagrams of the display module in the related technology.

[0073] Explanation of key component reference numerals: Light-emitting area - 10, Sub-area - 13, Light-emitting pixel - 16, Pixel circuit - 20, Light-emitting element - 30, Storage module - 40, Control module - 50, Control unit - 55, PWM modulation module - 60, Light-emitting counter - 70, Delay module - 80, Timing module - 90, Display module - 100, Processor - 110, Memory - 120, Display device - 150. Detailed Implementation

[0074] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0075] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0076] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0077] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0078] This disclosure provides many different embodiments or examples for implementing different structures of this application. To simplify the disclosure, specific examples of components and arrangements are described herein. Of course, these are merely examples and are not intended to limit the scope of this application. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, various specific examples of processes and materials are provided in this application, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0079] Please refer to Figures 1 to 3. An embodiment of this application provides a display module 100 including a light-emitting area 10 and a control module 50. The light-emitting area 10 includes at least one sub-region 13, and each sub-region 13 includes a plurality of light-emitting pixels 16. The control module 50 is electrically connected to the light-emitting area 10. The control module 50 is configured to: within one frame, control at least one light-emitting pixel 16 of each sub-region 13 to delay illumination and / or prematurely extinguish illumination, thereby reducing the time when all light-emitting pixels 16 of the sub-region 13 are simultaneously emitting illumination; and / or control at least one sub-region 13 to delay illumination and / or prematurely extinguish illumination, thereby reducing the time when all sub-regions 13 are simultaneously emitting illumination.

[0080] In the aforementioned display module 100, by controlling at least one luminous pixel 16 in each sub-region 13 to delay illumination and / or prematurely extinguish within one frame, the time for all luminous pixels 16 in the sub-region 13 to emit light simultaneously is reduced, and / or by controlling at least one sub-region 13 to delay illumination and / or prematurely extinguish, the time for all sub-regions 13 to emit light simultaneously is reduced. Therefore, the duration of the maximum current can be reduced within one frame, thereby mitigating the impact of differences in luminous brightness caused by the maximum voltage drop to some extent, thus optimizing the display difference problem.

[0081] Specifically, the display module 100 is used to display images or information. Optionally, the display module 100 may include, but is not limited to, a Micro-LED display array. The display module 100 includes a light-emitting area 10 and a control module 50, which work together to display images or information. When the image or information signal acquired by an external device (such as a computer, mobile phone, etc.) is a digital signal, the control module 50 in the display module 100 can decode, process, and analyze these digital signals to determine the light-emitting state (such as color, brightness, light-emitting duration, etc.) of each light-emitting pixel 16 in the light-emitting area 10. Based on the processed signal, the control module 50 generates a control signal and transmits it to the light-emitting area 10. Each light-emitting pixel 16 in the light-emitting area 10 emits light according to the received control signal, thereby presenting the desired image or information.

[0082] In related technologies, referring to Figure 10, voltage drops in the transmission lines of the display module 200 can cause voltage differences at different nodes. Voltage drop refers to the reduction in voltage caused by resistance during current transmission. Since LEDs are voltage-sensitive devices, their brightness is closely related to voltage. When the transmission path is long, the voltage drop becomes more significant, leading to inconsistent voltages across the LEDs, thus affecting the actual brightness of the display and causing the display effect to deviate from expectations. As PPI (pixels per inch) increases, the display resolution improves, and the distance between each pixel decreases. This means that the impact of voltage drop on the display effect becomes more pronounced; even small voltage changes can lead to significant brightness differences, resulting in a decrease in overall display quality. When the control module 250 inputs the same time-delayed signal (such as a global signal) to each pixel circuit 220, the current in the transmission path remains at a high peak value. Therefore, the voltage drop effect lasts for a longer period, leading to significant display differences.

[0083] In this embodiment, referring to Figure 1, the light-emitting area 10 can be divided into several m*n sub-regions 13. Each sub-region 13 includes multiple light-emitting pixels 16, where m and n represent the number of light-emitting pixels 16 in the horizontal and vertical directions of the sub-region 13, respectively. These sub-regions 13 together constitute the entire M*N size light-emitting area 10 (Active Area / AA area), where M and N represent the total number of light-emitting pixels 16 in the horizontal and vertical directions of the light-emitting area 10, respectively. The division of the sub-regions 13 satisfies the conditions M≥m>1 and N≥n>1. In one embodiment, when m=M and n=N, the sub-region 13 is equivalent to the light-emitting area 10 itself; that is, the light-emitting area 10 includes a sub-region 13.

[0084] The specific values ​​of M, N, m, and n, as well as the number of sub-regions 13, can be specifically limited according to hardware type or different scenarios, and this application does not make specific limitations in this regard.

[0085] The control module 50 can independently control the light emission process of each sub-region 13, and each light-emitting pixel 16 within the sub-region 13 has an independently controllable control signal. Within one frame (the time required to display a complete image), the control module 50 sends control signals to each sub-region 13 according to the preset light emission order of the light-emitting pixels 16 stored in the control module 50. Each light-emitting pixel 16 in the sub-region 13 emits light after receiving the control signal.

[0086] In one embodiment, the control module 50 is configured to: control all luminescent pixels 16 of each sub-region 13 to emit light and / or extinguish light ahead of time in sequence within one frame, thereby minimizing the time during which all luminescent pixels 16 of the sub-region 13 emit light simultaneously. In another embodiment, the control module 50 is configured to: control one or more luminescent pixels 16 of the sub-region 13 to emit light and / or extinguish light ahead of time in sequence within one frame, thereby reducing the time during which all luminescent pixels 16 of the sub-region 13 emit light simultaneously. The delay time can be specifically limited according to actual conditions, and this application does not impose a specific limitation on it.

[0087] As an example, referring to Figure 3, sub-region 13 includes four luminous pixels 16: A, B, C, and D. In one embodiment, the control module 50 can control the four luminous pixels 16 of each sub-region 13 to emit light in the order ABCD or other orders within one frame. In one embodiment, the control module 50 can control the three luminous pixels 16 of each sub-region 13, BCD, to emit light in the order BCD or other orders within one frame. In one embodiment, the control module 50 can control the two luminous pixels 16 of each sub-region 13, BC, to emit light in the order BC or other orders within one frame. In one embodiment, the control module 50 can control the luminous pixel 16 B of each sub-region to emit light in a delayed manner within one frame, whereby the luminous pixel 16 B can emit light in a delayed manner relative to any one of the three luminous pixels 16 A, C, and D.

[0088] In one embodiment, the control module 50 can control the four emitting pixels 16 of each sub-region 13 to turn off in the order ABCD or other orders within one frame. In one embodiment, the control module 50 can control the three emitting pixels 16 of each sub-region 13 (BCD) to turn off in the order BCD or other orders within one frame. In one embodiment, the control module 50 can control the two emitting pixels 16 of each sub-region 13 (BC) to turn off in the order BC or other orders within one frame. In one embodiment, the control module 50 can control the emitting pixel 16 of each sub-region (B) to turn off in one frame, and the emitting pixel 16 of B can turn off earlier than any one of the three emitting pixels 16 (ACD).

[0089] Optionally, the display module 100 includes two or more sub-regions 13. In one embodiment, the control module 50 is configured to delay the illumination and / or prematurely extinguish the light of all sub-regions 13 within the display module 100 within one frame, thereby minimizing the time during which the sub-regions 13 illuminate simultaneously. In another embodiment, the control module 50 is configured to sequentially delay the illumination and / or prematurely extinguish the light of one or more sub-regions 13 within the display module 100 within one frame, thereby reducing the time during which all sub-regions 13 illuminate simultaneously. The delay time can be specifically limited according to actual conditions, and this application does not impose a specific limitation on it.

[0090] As an example, referring to Figure 1, module 100 includes three sub-regions 13: A, B, and C. In one embodiment, control module 50 can control the three sub-regions 13 to emit light in the order ABC or other orders within one frame. In one embodiment, control module 50 can control sub-regions 13 B and C to emit light in the order BC or other orders within one frame. In one embodiment, control module 50 can control sub-region B to emit light with a delay within one frame, and sub-region B can emit light with a delay relative to either sub-region A or C.

[0091] In one embodiment, the control module 50 can control three sub-regions 13 to turn off in the order ABC or other orders within one frame. In one embodiment, the control module 50 can control two sub-regions 13, B and C, to turn off in the order BC or other orders within one frame. In one embodiment, the control module 50 can control sub-region B to turn off early within one frame, and sub-region B can turn off earlier than either sub-region A or C.

[0092] In one embodiment, the control module 50 is configured to: control at least one light-emitting pixel 16 in each sub-region 13 to emit light with a delayed time and / or extinguish light early, and control at least one sub-region 13 to emit light with a delayed time and / or extinguish light early. The configuration of the control module 50 includes: 1) controlling at least one light-emitting pixel 16 in each sub-region 13 to emit light with a delayed time, and controlling at least one sub-region 13 to emit light with a delayed time; 2) controlling at least one light-emitting pixel 16 in each sub-region 13 to extinguish light early, and controlling at least one sub-region 13 to extinguish light early; 3) controlling at least one light-emitting pixel 16 in each sub-region 13 to emit light with a delayed time, and controlling at least one sub-region 13 to extinguish light early; 4) controlling at least one light-emitting pixel 16 in each sub-region 13 to extinguish light early, and controlling at least one sub-region 13 to emit light with a delayed time. The configuration of the control module 50 can be specifically limited according to actual conditions, and this application does not impose specific limitations on it.

[0093] In related technologies, referring to Figure 10, when the control module inputs the same time-delayed signal (such as the Global signal) to each pixel circuit, the four luminous pixels A, B, C, and D emit light simultaneously, and the current in the transmission path remains at a high peak value. The highest current generates the largest voltage drop, resulting in voltage differences at different nodes on the transmission line. As the current flows sequentially through the four luminous pixels A, B, C, and D, due to the resistance of the transmission line, some voltage is lost during current transmission. Therefore, the longer the path of the current through the transmission line, the lower the voltage reaches the two ends of the luminous pixels. The voltage levels at points A1, A2, A3, and A4 decrease sequentially, and the voltage drop of the four luminous pixels A, B, C, and D gradually increases. Therefore, the voltage drop affects the display for a longer period, resulting in very significant display differences.

[0094] In this embodiment, referring to Figures 3, 7, and 8, by delaying the emission of light, the time of high current caused by all the light-emitting pixels 16 in the factor region 13 emitting light simultaneously can be reduced, thereby reducing the impact time of the maximum voltage drop. Therefore, the brightness difference caused by the voltage drop can be reduced, and the display effect of the entire display module 100 will be more uniform and clearer. In one example, referring to Figures 3 and 7, the control module 50 controls the three light-emitting pixels 16 (A, B, C, and D) in each sub-region 13 to turn off in sequence (A, B, C) with a shorter advance time within one frame, and controls the three light-emitting pixels 16 (B, C, and D) in each sub-region 13 to emit light in sequence (B, C, D) with a shorter delay time. The reduced time for the four light-emitting pixels 16 (A, B, C, and D) to emit light simultaneously reduces the time of high peak current in the transmission path. The current flows sequentially through the four light-emitting pixels A, B, C, and D. The time for the voltage level to drop at points A1, A2, A3, and A4 is reduced, and the time for the voltage drop of the four light-emitting pixels A, B, C, and D is reduced. Therefore, the time for the display to emit light due to the voltage drop is reduced, resulting in a smaller display difference.

[0095] In one example, referring to Figures 3 and 8, the control module 50 controls the three emitting pixels 16 (A, B, C) of each sub-region 13 to turn off in sequence (A, B, C) with a shorter advance time within one frame, and controls the three emitting pixels 16 (B, C, D) of each sub-region 13 to emit light in sequence (B, C, D) with a longer delay time. This further reduces the time when the four emitting pixels 16 (A, B, C, D) emit light simultaneously, and further reduces the time when the current in the transmission path is at its highest peak. The current flows sequentially through the four emitting pixels 16 (A, B, C, D), reducing the time for the voltage level to drop at points A1, A2, A3, and A4, and reducing the voltage drop time of the four emitting pixels (A, B, C, D). Therefore, it further reduces the impact of voltage drop on display differences.

[0096] In some embodiments, the control module 50 is configured to: within one frame time, adjust the start and / or end point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to a first preset duration, so that at least one light-emitting pixel 16 in the sub-region 13 emits light with a delay and / or turns off early, and / or; adjust the start and / or end point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration and the light emission time of adjacent light-emitting pixels 16, so that at least one light-emitting pixel 16 in the sub-region 13 emits light with a delay and / or turns off early.

[0097] Thus, by delaying the emission of at least one luminous pixel 16 in the sub-region 13 and / or extinguishing it prematurely for a first preset duration, the duration of the maximum current can be effectively reduced, thereby reducing the impact of the maximum voltage drop on display differences.

[0098] For ease of explanation, the following description uses delayed illumination as an implementation method. Optionally, the first preset duration can be the delay time between the starting point of the delayed illumination pixel 16 and a first set time point within a frame. The control module 50 can allocate a delayed illumination time to the delayed illumination pixel 16 according to the first preset duration, so that at least one illumination pixel 16 in the sub-region 13 emits light in a delayed manner. This can reduce the duration of the maximum current caused by multiple illumination pixels 16 emitting light simultaneously, thereby reducing the impact time of the maximum voltage drop and, to a certain extent, reducing the impact of the maximum voltage drop on display differences. It should be noted that the first set time point can be the starting point of a frame or the starting point of the strobe signal; the first set time point can be the starting point of the first illumination pixel 16 in the sub-region 13 within a frame; the first set time point can be the time point between the starting point of a frame and the starting point of the illumination time of the first illumination pixel 16 in the sub-region 13.

[0099] Optionally, the first preset duration can be the time between the end of the light-emitting time of the prematurely extinguished light-emitting pixel 16 and the second preset time point within one frame. The control module 50 can allocate an early extinguishing time for the prematurely extinguished light-emitting pixel 16 according to the first preset duration, so that at least one light-emitting pixel 16 in the sub-region 13 is extinguished in advance. This can reduce the time of high current caused by multiple light-emitting pixels 16 emitting light simultaneously, thereby reducing the impact time of the maximum voltage drop and reducing the impact of voltage drop on display differences to a certain extent. It should be noted that the second preset time point can be the end of one frame or the end of the strobe signal; the second preset time point can be the end of the time of the first light-emitting pixel 16 emitting light in the sub-region 13 within one frame; the second preset time point can be the time point between the end of one frame or the end of the strobe signal and the end of the light-emitting time of the first light-emitting pixel 16 emitting light in the sub-region 13.

[0100] The first preset duration can be determined and stored in the control module 50 through testing, simulation, or other methods, and this application does not impose specific limitations on it. It is understood that the first preset duration can be fixed or adjustable.

[0101] It is understandable that adjacent light-emitting pixels 16 refer to light-emitting pixels 16 that emit light sequentially in the order of emission time.

[0102] Specifically, in one embodiment, the control module 50 is configured to: within one frame time, adjust the start and / or end of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to a first preset duration, so that at least one light-emitting pixel 16 in the sub-region 13 emits light with a delay and / or turns off early.

[0103] It is understood that sub-region 13 includes two or more light-emitting pixels 16. In one embodiment, the starting point of the light-emitting time of at least one light-emitting pixel 16 in sub-region 13 is adjusted according to a first preset duration. The following description uses delayed light emission as an example. In one example, referring to FIG3, the first light-emitting pixel 16 to emit light is A, and the delayed light-emitting pixels 16 are BCD, emitting light in the order BCD. Light-emitting pixel A starts emitting light at time t1, where time t1 can be the starting point of a frame or a point in time between the starting point of a frame and the starting point of the light-emitting time of pixel A. The first preset duration of light-emitting pixel B is T1, and the starting point of the light-emitting time of pixel B is t+T1. The first preset duration of light-emitting pixel C is T2, and the starting point of the light-emitting time of pixel C is t+T2. The first preset duration of light-emitting pixel D is T3, and the starting point of the light-emitting time of pixel D is t+T3. Optionally, the first preset duration of the delayed luminous pixel 16 will be increased accordingly, i.e., T1 > T2 > T3 and t3 - T2 = T2 - T1. Alternatively, the values ​​of the first preset duration of the delayed luminous pixel 16 are all equal, i.e., T1 = T2 = T3.

[0104] In one embodiment, since the starting point of the light emission time of the delayed-emission pixel 16 is adjusted, the ending point of the light emission time of the delayed-emission pixel 16 is also adjusted accordingly when the light emission time remains unchanged. When the light emission time varies with the starting point of the light emission time, the ending point of the light emission time of the delayed-emission pixel 16 is not adjusted, as shown in Figures 7 and 8 for D-emission pixel 16.

[0105] In one embodiment, the end point of the light-emitting time of the prematurely extinguished light-emitting pixel 16 is adjusted, and the starting point of the light-emitting time of the prematurely extinguished light-emitting pixel 16 is also adjusted accordingly when the light-emitting time varies with the end point of the light-emitting time. When the light-emitting time varies with the end point of the light-emitting time, the starting point of the light-emitting time of the prematurely extinguished light-emitting pixel 16 is not adjusted, as shown in Figure 7 and Figure 8 for light-emitting pixel 16 A.

[0106] In one embodiment, the same light-emitting pixel 16 can be either a delayed light-emitting pixel 16 or a light-emitting pixel 16 that is turned off early. The start and end points of the light-emitting time of such a light-emitting pixel 16 are adjusted, as shown in Figures 7 and 8 as BC light-emitting pixels 16.

[0107] In one embodiment, the control module 50 is configured to adjust the start and / or end of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to a first preset duration and the light emission time of adjacent light-emitting pixels 16, so that at least one light-emitting pixel in the sub-region 13 emits light with a delay and / or turns off early.

[0108] For ease of explanation, the following description uses delayed illumination as an implementation method. The control module 50 can allocate a delayed illumination time to the delayed-illumination pixel 16 according to the first preset duration and the start and / or end of the illumination time of the previous illuminating pixel 16, so that at least one illuminating pixel 16 in the sub-region 13 emits light in a delayed manner. This can reduce the duration of the maximum current caused by multiple illuminating pixels 16 emitting light simultaneously, thereby reducing the impact time of the maximum voltage drop and, to a certain extent, reducing the impact of voltage drop on display differences.

[0109] In one embodiment, the starting point of the light-up time of at least one light-up pixel 16 in sub-region 13 is adjusted according to a first preset duration and the light-up time of adjacent light-up pixels 16. Delayed light-up is used as an example. In one example, referring to Figure 3, the first light-up pixel 16 to emit light is A, and the delayed light-up pixels 16 are BCD, emitting light in the order BCD. Light-up pixel A starts emitting light at time t1. Time t1 can be the starting point of a frame, or it can be the time point between the starting point of a frame and the starting point of the light-up time of pixel A. The first preset duration is T4. The starting point of the light-up time of pixel B is t+T4. The starting point of the light-up time of pixel C is the starting point of the light-up time of pixel B plus the first preset duration, i.e., (t+T4)+T4=t+2*T4. The starting point of the light emission time of the D light-emitting pixel 16 is the first preset duration added to the starting point of the light emission time of the C light-emitting pixel 16, that is, ((t+T4)+T4)+T4=t+3*T4.

[0110] In one embodiment, since the starting point of the light emission time of the delayed-emission pixel 16 is adjusted, the ending point of the light emission time of the delayed-emission pixel 16 is also adjusted accordingly when the light emission time remains unchanged. When the light emission time varies with the starting point of the light emission time, the ending point of the light emission time of the delayed-emission pixel 16 is not adjusted, as shown in Figures 7 and 8 for the D light emission pixel.

[0111] In one embodiment, the end point of the light-emitting time of the prematurely extinguished light-emitting pixel 16 is adjusted, and the starting point of the light-emitting time of the prematurely extinguished light-emitting pixel 16 is also adjusted accordingly when the light-emitting time varies with the end point of the light-emitting time. When the light-emitting time varies with the end point of the light-emitting time, the starting point of the light-emitting time of the prematurely extinguished light-emitting pixel 16 is not adjusted, as shown in Figure 7 and Figure 8 for light-emitting pixel 16 A.

[0112] In one embodiment, the same light-emitting pixel 16 can be either a delayed light-emitting pixel 16 or a light-emitting pixel 16 that is turned off early. The start and end points of the light-emitting time of such a light-emitting pixel 16 are adjusted, as shown in Figures 7 and 8 as BC light-emitting pixels 16.

[0113] In one embodiment, the control module 50 is configured to: adjust the start and / or end of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to a first preset duration, and adjust the start and / or end of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration and the light emission time of adjacent light-emitting pixels 16. The configuration methods of the above control module 50 include: 1) adjusting the starting point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to a first preset duration, and adjusting the starting point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration and the light emission time of adjacent light-emitting pixels 16; 2) adjusting the ending point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration, and adjusting the ending point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration; 3) adjusting the starting point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration, and adjusting the ending point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration and the light emission time of adjacent light-emitting pixels 16; 4) adjusting the ending point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration, and adjusting the starting point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration and the light emission time of adjacent light-emitting pixels 16. The configuration of the control module 50 can be specifically limited according to the actual situation, and this application does not make specific limitations in this regard.

[0114] In some embodiments, the control module 50 is configured to: within one frame time, adjust the start and / or end point of the light emission time of at least one sub-region 13 according to a second preset duration, so that at least one sub-region 13 emits light with a delay and / or extinguishes light early, and / or; adjust the start and / or end point of the light emission time of at least one sub-region 13 according to the second preset duration and the light emission time of adjacent sub-regions, so that at least one sub-region 13 emits light with a delay and / or extinguishes light early.

[0115] Thus, by delaying the emission of light and / or turning off the light in advance in at least one sub-region 13 within the display module 100 through the second preset duration, the duration of the maximum current can be effectively reduced, thereby reducing the impact of the maximum voltage drop on the display difference.

[0116] For ease of explanation, the following description uses delayed light emission as an implementation method. Optionally, the second preset duration is the delay time between the starting point of the light emission time of the delayed light emission sub-region 13 and the starting point of the light emission time of the previous sub-region 13. The control module 50 can allocate a delayed light emission time to the delayed light emission sub-region 13 according to the second preset duration and the starting and / or ending point of the light emission time of the previous sub-region 13, so that at least one sub-region 13 emits light in a delayed manner. This can reduce the duration of the maximum current caused by multiple sub-regions 13 emitting light simultaneously, thereby reducing the impact time of the maximum voltage drop and reducing the impact of voltage drop on display differences to a certain extent.

[0117] The second preset duration can be determined and stored in the control module 50 through testing, simulation, or other methods, and this application does not impose specific limitations on it. It is understood that the second preset duration can be fixed or adjustable.

[0118] It is understandable that adjacent sub-regions 13 refer to sub-regions 13 that emit light sequentially in the order of emission time.

[0119] Specifically, in one embodiment, the control module 50 is configured to: within one frame time, adjust the start and / or end of the light emission time of at least one sub-region 13 according to a second preset duration, so that at least one sub-region 13 emits light with a delay and / or extinguishes light prematurely.

[0120] It is understood that the display module 100 includes two or more sub-regions 13. In one embodiment, the starting point of the light emission time of at least one sub-region 13 is adjusted according to a second preset duration, and delayed light emission is described as an implementation method. If two or more sub-regions 13 are delayed light emission sub-regions 13, then the second preset duration of the later delayed light emission sub-region 13 will be increased accordingly. In one example, referring to Figure 1, the first light emission sub-region 13 is A, and the delayed light emission sub-regions 13 are BC, and they are delayed in the order of BC. Sub-region A 13 starts to emit light at time t1, where time t1 can be the starting point of a frame or a time point between the starting point of a frame and the starting point of the light emission time of sub-region A 13. The second preset duration of sub-region B 13 is T5, and the starting point of the light emission time of sub-region B 13 is t+T5. The second preset duration of sub-region C 13 is T6, and the starting point of the light emission time of sub-region C 13 is t+T6. Optionally, the second preset duration of the later-delayed sub-region 13 will be increased accordingly, i.e., T6 > T5. Alternatively, the second preset duration of the later-delayed sub-region 13 will be equal, i.e., T5 = T6.

[0121] In one embodiment, since the starting point of the emission time of the delayed emission sub-region 13 is adjusted, the ending point of the emission time of the delayed emission sub-region 13 is also adjusted accordingly when the emission time remains unchanged. When the emission time varies with the starting point of the emission time, the ending point of the emission time of the delayed emission sub-region 13 is not adjusted.

[0122] In one implementation, the end point of the emission time of the prematurely extinguished sub-region 13 is adjusted, and the start point of the emission time of the prematurely extinguished sub-region 13 is also adjusted accordingly when the emission time remains unchanged. When the emission time varies with the end point of the emission time, the start point of the emission time of the prematurely extinguished sub-region 13 is not adjusted.

[0123] In one implementation, the same sub-region 13 can be either a delayed-emission sub-region 13 or a prematurely extinguished sub-region 13, with the start and end points of the emission time of such sub-region 13 being adjusted. In one example, delayed emission is used as an example. Referring to Figure 1, the first emitting sub-region 13 is A, and the delayed-emission sub-regions 13 are BC, with emission delayed in the order of BC. Sub-region A 13 begins to emit light at time t1, where t1 can be the start of a frame or the time point between the start of a frame and the start of the emission time of pixel A 16. The second preset duration is T7. The start of the emission time of sub-region B 13 is t+T7. The start of the emission time of sub-region C 13 is the start of the emission time of pixel B 16 plus the second preset duration, i.e., (t+T7)+T7=t+2*T7.

[0124] In one embodiment, since the starting point of the emission time of the delayed emission sub-region 13 is adjusted, the ending point of the emission time of the delayed emission sub-region 13 is also adjusted accordingly when the emission time remains unchanged. When the emission time varies with the starting point of the emission time, the ending point of the emission time of the delayed emission sub-region 13 is not adjusted.

[0125] In one implementation, the end point of the emission time of the prematurely extinguished sub-region 13 is adjusted, and the start point of the emission time of the prematurely extinguished sub-region 13 is also adjusted accordingly when the emission time remains unchanged. When the emission time varies with the end point of the emission time, the start point of the emission time of the prematurely extinguished sub-region 13 is not adjusted.

[0126] In one implementation, the same sub-region 13 can be either a sub-region 13 that emits light with a delay or a sub-region 13 that extinguishes light prematurely, and the start and end points of the light emission time of such a sub-region 13 are adjusted.

[0127] In one embodiment, the control module 50 is configured to: adjust the start and / or end of the light emission time of at least one sub-region 13 according to a second preset duration, and adjust the start and / or end of the light emission time of at least one sub-region 13 according to the second preset duration and the light emission time of adjacent light-emitting pixels 16. The configuration of the control module 50 includes: (1) adjusting the starting point of the light emission time of at least one sub-region 13 according to the second preset duration, and adjusting the starting point of the light emission time of at least one sub-region 13 according to the second preset duration and the light emission time of adjacent sub-region 13; (2) adjusting the ending point of the light emission time of at least one sub-region 13 according to the second preset duration, and adjusting the ending point of the light emission time of at least one sub-region 13 according to the second preset duration and the light emission time of adjacent sub-region 13; (3) adjusting the starting point of the light emission time of at least one sub-region 13 according to the second preset duration, and adjusting the ending point of the light emission time of at least one sub-region 13 according to the second preset duration and the light emission time of adjacent sub-region 13; (4) adjusting the ending point of the light emission time of at least one sub-region 13 according to the second preset duration, and adjusting the starting point of the light emission time of at least one sub-region 13 according to the second preset duration and the light emission time of adjacent sub-region 13. The configuration of the control module 50 can be specifically limited according to the actual situation, and this application does not make specific limitations in this regard.

[0128] In some embodiments, the control module 50 includes at least one control unit 55, each control unit 55 being electrically connected to a corresponding sub-region 13 to control the emission time of the light-emitting pixels 16 in the corresponding sub-region 13.

[0129] In this way, each control unit 55 can independently adjust the light emission time of the light-emitting pixel 16 in its corresponding sub-region 13, which improves the accuracy and flexibility of control to a certain extent.

[0130] Specifically, referring to Figure 2, each control unit 55 is electrically connected to a corresponding sub-region 13 to control the delayed emission and / or early extinguishing of at least one light-emitting pixel 16 in that region. Each control unit 55 can independently receive, process, and send control signals, thereby achieving independent control of each sub-region 13, so that the emission time of each sub-region 13 can be precisely controlled.

[0131] The number of control units 55 can be specifically limited according to actual conditions, and this application does not make a specific limitation in this regard. One control unit 55 controls one sub-region 13.

[0132] In some embodiments, the light-emitting pixel 16 includes a pixel circuit 20 and a light-emitting element 30. The pixel circuit 20 is electrically connected to a control unit 55 and the light-emitting element 30. The control unit 55 is configured to send a control signal to the pixel circuit 20, and the pixel circuit 20 is configured to control the light-emitting time of the light-emitting element 30 according to the control signal.

[0133] Thus, the pixel circuit 20 adjusts the light-emitting state of the light-emitting element 30 according to the received control signal, so that the desired image or information can be presented on the display module 100.

[0134] Specifically, pixel circuit 20 is the analog-to-digital circuit portion of the light-emitting pixel 16. Pixel circuit 20 is electrically connected to control unit 55 and light-emitting element 30, and is used to receive, process, and convert control signals from control unit 55, thereby controlling the light-emitting element 30 to emit light. Optionally, pixel circuit 20 may contain, but is not limited to, electronic components such as transistors and capacitors, which work together to control the light-emitting element 30. Pixel circuit 20 is connected to light-emitting element 30 via switching transistor Q.

[0135] The light-emitting element 30 is the part of the light-emitting pixel 16 responsible for actually emitting light. The light-emitting element 30 is electrically connected to the pixel circuit 20, so the light-emitting state of the light-emitting element 30 can be controlled by the pixel circuit 20. Optionally, the light-emitting element 30 includes, but is not limited to, Micro-LED, LED (light-emitting diode), OLED (organic light-emitting diode), or other types of light-emitting materials.

[0136] After the pixel circuit 20 receives, processes and converts the control signal from the control unit 55, it will adjust the brightness, color and duration of the light-emitting element 30 according to the content of the control signal, so as to present the required image or information on the display module 100.

[0137] In some embodiments, the control signal includes a grayscale counting signal, the control unit 55 includes a light-emitting counter 70, the pixel circuit 20 includes a PWM (Pulse Width Modulation) module 60, the light-emitting counter 70 is configured to output a grayscale counting signal, and the PWM modulation module 60 is configured to control the pulse width of the PWM signal according to the grayscale counting signal and pixel data, wherein the pulse width of the PWM signal is proportional to the light-emitting time of the light-emitting pixel 16.

[0138] In this way, by comparing the grayscale count signal output by the light-emitting counter 70 with the pixel data, the PWM signal can change the pulse width to adjust the light-emitting time of the light-emitting pixel 16, thereby achieving precise control of the light intensity to a certain extent.

[0139] Specifically, referring to Figure 6, the pixel circuit 20 includes a storage module 40, which is electrically connected to the PWM modulation module 60 and is used to store pixel data, including frame data. An emission counter 70 is electrically connected to the PWM modulation module 60. The PWM modulation module 60 compares the grayscale count signal output by the emission counter 70 with the pixel data in the storage module 40. The PWM modulation module 60 may include a pulse width modulation generator. The pulse width of the PWM signal output by the PWM modulation module 60 is proportional to the emission time of the luminous pixel 16; that is, the duration for which the modulated PWM signal is at a high level affects the emission time of the luminous pixel 16.

[0140] Each luminous pixel 16 can display different brightness levels, which constitute a grayscale. A grayscale represents different brightness levels from the darkest to the brightest. Grayscale refers to dividing the brightness change between the brightest and darkest areas into several parts to control the brightness of the luminous pixels 16 in the corresponding sub-region 13 by inputting the grayscale signal. In the grayscale, the brightness change from black to white, containing a total of 256 gray levels, that is, a grayscale range of 0 to 255. Smaller gray values ​​represent darker areas, and larger gray values ​​represent brighter areas.

[0141] When the grayscale count signal output by the light-emitting counter 70 is the same as the pixel data (or its converted value), a change in the pulse width of the PWM signal is triggered. Specifically, in one embodiment, the PWM signal is set to a high level when it starts counting, indicating the start of the output signal. When the light-emitting counter 70 continues counting to an endpoint value corresponding to the pixel data, the PWM signal is set to a low level, indicating the end of the output signal, thereby modulating the pulse width of the PWM signal. The duration of this high-level signal (i.e., the pulse width of the PWM signal) corresponds to the brightness or color level represented by the pixel data; that is, the PWM modulation module 60 outputs a signal with a target effective width based on the grayscale count signal and the pixel data. The pulse width of the PWM signal determines the duration of the light-emitting pixel 16.

[0142] In one example, when the pixel data contains 3 grayscale information, the emission counter 70 starts counting from 0, and the PWM signal is set to high. When the grayscale count signal output by the emission counter 70 is 3, the PWM signal is set to low. The PWM signal output by the PWM modulation module 60 can emit light on grayscales with a grayscale count result less than 3, that is, it can emit light on grayscales 0-2, with the starting point of the emission time being grayscale 0 and the ending point being grayscale 2. The pulse width of the PWM signal is the length corresponding to grayscales 0-2.

[0143] Optionally, the control module 50 is electrically connected to the timing module 90. The control signal includes an enable signal, which is modulated by the control module 50 and the pixel circuit 20 and output as a PWM signal. Referring to Figures 7 and 8, when both the gating signal and the PWM signal are at a high level, the switching transistor Q is turned on, thereby causing the corresponding light-emitting element 30 to emit light.

[0144] In some implementations, the grayscale counting signal has a counting mode that includes a forward counting mode and a reverse counting mode.

[0145] Thus, by combining forward counting mode and reverse counting mode, different light emission requirements can be met.

[0146] Specifically, referring to Figures 4 and 5, the control module 50 is electrically connected to the timing module 90. The timing module 90 can output a counting mode signal to the LED counter 70. The LED counter 70 can count gray levels according to different counting mode signals. The counting mode signals include forward counting mode signals and reverse counting mode signals, so that the counting mode of the gray level counting signal can include forward counting mode and reverse counting mode. Specifically, the forward counting mode signal can control the LED counter 70 to count gray levels in an increasing order, such as counting from gray level 0 to gray level 255. The reverse counting mode signal can control the LED counter 70 to count gray levels in a decreasing order, such as counting from gray level 255 to gray level 0. The type of counting mode signal received by the LED counter 70 can be specifically limited according to the actual situation; this application does not make specific limitations in this regard.

[0147] In one embodiment, when the light emission counter 70 receives a positive counting mode signal, the light emission counter 70 increments the grayscale count from 0 until the length of the grayscale count signal output by the light emission counter 70 is equal to the pixel data, at which point the counting stops.

[0148] In one embodiment, when the light emission counter 70 receives the reverse counting mode signal, the light emission counter 70 decreases the gray level count from 2^x-1 (0≤x≤8) until the length of the gray level count signal output by the light emission counter 70 is equal to the pixel data and then stops counting.

[0149] Optionally, the control module 50 includes two or more control units 55, and the timing module 90 inputs a counting mode signal to the light-emitting counter 70 of each control unit 55 to control the counting mode of the light-emitting counter 70. The counting mode signal received by each light-emitting counter 70 may be the same or different, and this application does not specifically limit this.

[0150] In one implementation, the counting mode signal received by the light-emitting counter 70 can be the same. In one example, referring to Figure 4a, the timing module 90 inputs the same counting mode signal to both light-emitting counter A 70 and light-emitting counter B 70. Optionally, the counting mode signal is a positive counting mode signal, such that the grayscale counting signals output by control units A 55 and B 55 are in a positive counting mode. Alternatively, the counting mode signal is an inverse counting mode, such that the grayscale counting signals output by control units A 55 and B 55 are in an inverse counting mode.

[0151] In one implementation, the counting mode signals received by the light-emitting counter 70 can be different or the same. In one example, referring to Figure 4b, the control module 50 includes two control units 55, each electrically connected to a corresponding sub-region 13. Control unit A includes light-emitting counter A 70, and control unit B includes light-emitting counter B 70. The timing module 90 inputs counting mode signal 1 to light-emitting counter A 70 and counting mode signal 2 to light-emitting counter B 70. Referring to Figures 4b and 5, counting mode signal 1 is a positive counting mode signal, making the grayscale counting signal output by control unit A 55 a positive counting mode, and counting mode signal 2 is a negative counting mode signal, making the grayscale counting signal output by control unit B 55 a negative counting mode. It can be understood that, optionally, counting mode signal 1 can be a negative counting mode, and counting mode signal 2 can be a positive counting mode; or, both counting mode signal 1 and counting mode signal 2 can be positive counting modes; or, both counting mode signal 1 and counting mode signal 2 can be negative counting modes.

[0152] In some embodiments, the control module 50 includes a timing module 90 and a delay module 80. The timing module 90 is electrically connected to the control unit 55 and is configured to configure the light emission parameters of each light-emitting pixel 16. The delay module 80 and the light emission counter 70 are electrically connected to the timing module 90 and are configured to control the delayed light emission time and / or the early extinguishing time of the light-emitting pixel 16 according to the light emission parameters of the light-emitting pixel 16.

[0153] Thus, the duration of delayed illumination and / or the duration of early extinguishing for each luminous pixel 16 can be determined according to preset illumination parameters.

[0154] Specifically, the timing module 90 is used to configure the light emission parameters of each light-emitting pixel 16. The timing module 90 is electrically connected to the light emission counter 70, which generates and outputs a light emission clock signal based on the light emission parameters. The light emission clock signal provides a timing reference for the digital signals of the pixel circuit 20, ensuring that the light emission process of each light-emitting pixel 16 can proceed in a predetermined time sequence. When the PWM modulation module 60 receives the light emission clock signal, it controls the start and end points of the pulses according to the light emission clock signal, thereby controlling the start and end points of the light emission time of each light-emitting pixel 16.

[0155] The timing module 90 is electrically connected to the delay module 80. The configuration module 90 can generate and output a light emission configuration signal according to the light emission parameters. The light emission configuration signal is used to configure the delay time of the light emission pixel 16 that needs to be delayed and / or the early extinguishing time of the light emission pixel 16 that needs to be extinguished in advance. That is, the light emission configuration signal can configure a first preset duration and / or a second preset duration.

[0156] The following explanation uses delayed illumination as an example. When the control module 50 controls the illumination of the light-emitting pixels 16 in sub-region 13, the delay module 80 can first determine the first light-emitting pixel 16 to illuminate in sub-region 13. In one embodiment, the starting point of the illumination time of the first light-emitting pixel 16 is used as the reference time for calculating the delay of subsequent light-emitting pixels 16. Based on the illumination time of the first light-emitting pixel 16 and the duration of the delayed illumination, the delay module 80 allocates the duration of the delayed illumination to the delayed-illumination pixels 16, thus obtaining the adjusted starting and ending points of the illumination time for the delayed-illumination pixels 16.

[0157] The delay module 80 outputs a corresponding control signal, and the PWM modulation module 60 controls the illumination of each light-emitting pixel 16 according to the control signal, so that the delayed-illuminating pixel 16 can emit light after a delay. It can be understood that the first light-emitting pixel 16 to emit light can be any light-emitting pixel 16 within the sub-region 13.

[0158] In this embodiment, the specific position of the actual output PWM pulse (high level) in the entire frame light emission range can be changed by adjusting signals such as grayscale counting signal, enable signal and light emission configuration signal in the PWM modulation module 60.

[0159] This application provides a control method for a display module 100. The display module 100 includes a light-emitting area 10, the light-emitting area 10 includes at least one sub-region 13, and each sub-region 13 includes a plurality of light-emitting pixels 16. The control method includes:

[0160] Within one frame, at least one luminous pixel 16 of each sub-region 13 is controlled to delay luminescence and / or turn off early to reduce the time when all luminous pixels 16 of the sub-region 13 are luminous simultaneously, and / or at least one sub-region 13 is controlled to delay luminescence and / or turn off early to reduce the time when all sub-regions 13 are luminous simultaneously.

[0161] In the above control method, the duration of the maximum current can be reduced within one frame, thereby reducing the impact of the difference in luminous brightness caused by the maximum voltage drop and optimizing the display difference problem.

[0162] It should be noted that the above explanation of the implementation method and beneficial effects of the display module 100 also applies to the control method of this embodiment. To avoid redundancy, it will not be elaborated in detail here.

[0163] In some embodiments, the control method includes: within one frame time, adjusting the start and / or end point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to a first preset duration, so that at least one light-emitting pixel 16 in the sub-region 13 emits light with a delay and / or extinguishes light early, and / or; adjusting the start and / or end point of the light emission time of at least one light-emitting pixel 16 in the sub-region 13 according to the first preset duration and the light emission time of adjacent light-emitting pixels 16, so that at least one light-emitting pixel 16 in the sub-region 13 emits light with a delay and / or extinguishes light early.

[0164] Thus, by delaying the emission of at least one luminous pixel 16 in the sub-region 13 and / or extinguishing it prematurely for a first preset duration, the duration of the maximum current can be effectively reduced, thereby reducing the impact of the maximum voltage drop on display differences.

[0165] In some embodiments, the control method includes: within one frame, adjusting the start and / or end point of the light emission time of at least one sub-region 13 according to a second preset duration, so that at least one sub-region 13 emits light with a delay and / or extinguishes light early, and / or; adjusting the start and / or end point of the light emission time of at least one sub-region 13 according to the second preset duration and the light emission time of adjacent sub-regions, so that at least one sub-region 13 emits light with a delay and / or extinguishes light early.

[0166] Thus, by delaying the emission of light and / or turning off the light in advance in at least one sub-region 13 within the display module 100 through the second preset duration, the duration of the maximum current can be effectively reduced, thereby reducing the impact of the maximum voltage drop on the display difference.

[0167] In some embodiments, the light-emitting pixel 16 includes a pixel circuit 20 and a light-emitting element 30, wherein the pixel circuit 20 is electrically connected to the light-emitting element 30. The control method includes sending a control signal to the pixel circuit 20 to cause the pixel circuit 20 to control the light-emitting element 30 to emit light according to the control signal.

[0168] Thus, the pixel circuit 20 adjusts the light-emitting state of the light-emitting element 30 according to the received control signal, so that the desired image or information can be presented on the display module 100.

[0169] In some embodiments, the control signal includes a grayscale counting signal, and the pixel circuit 20 includes a PWM modulation module 60. The control method includes: outputting a grayscale counting signal to the PWM modulation module 60 so that the PWM modulation module 60 controls the pulse width of the PWM signal according to the grayscale counting signal and pixel data, wherein the pulse width of the PWM signal is proportional to the emission time of the light-emitting pixel 16.

[0170] In this way, the pulse width can be changed to adjust the emission time of the light-emitting pixel 16, thereby achieving precise control of the light intensity to a certain extent.

[0171] In some implementations, the control method includes counting gray levels according to a counting mode signal, the counting mode signal including a forward counting mode signal and a reverse counting mode signal.

[0172] This improves the flexibility of controlling the light emission state of the light-emitting pixel 16 to a certain extent.

[0173] In some implementations, the control method includes configuring the delay time and / or the early extinguishing time of each light-emitting pixel 16 according to the light emission parameters of each light-emitting pixel 16.

[0174] In this way, the light-emitting pixel 16 can be controlled to emit light with a delay and / or turn off prematurely.

[0175] This application provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, it implements the steps of the control method described above. For the sake of brevity, these steps will not be elaborated here.

[0176] Referring to Figure 9, a display device 150 provided in this embodiment includes a processor and a memory. The memory 150 stores a computer program, which, when executed by the processor, implements the steps of the control method described in any of the above embodiments. For the sake of brevity, these steps will not be elaborated here.

[0177] This application provides a display device 150 including the display module 100 of any of the above embodiments.

[0178] In the aforementioned display device 150 and computer-readable storage medium, the duration of the maximum current can be reduced within one frame, thereby reducing the difference in luminous brightness of the light-emitting pixels caused by the maximum voltage drop, thus optimizing the display difference problem.

[0179] Specifically, the display device 150 is a device that can convert electronic signals into visual images to provide users with intuitive information display. The display device 150 includes, but is not limited to, any product or component with display functionality, such as mobile phones, tablets, wearable devices, televisions, monitors, and laptops. Optionally, the display device 150 includes a display module 100 and an image sensor (such as a camera). When the image or information signal acquired by the image sensor is a digital signal, the control module 50 in the display module 100 decodes, processes, and analyzes these digital signals to determine the light-emitting state (such as color, brightness, and light-emitting duration) of each light-emitting pixel 16 within the light-emitting area 10. Based on the processed signal, the control module 50 generates a control signal and transmits it to the light-emitting area 10 through a drive circuit. Each light-emitting pixel 16 within the light-emitting area 10 emits light according to the received control signal, thereby presenting the desired image or information, which the end user can then see on the display device 150.

[0180] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with an embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0181] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A display module, characterized in that, include: A light-emitting area, the light-emitting area comprising at least one sub-region, each sub-region comprising a plurality of light-emitting pixels; A control module electrically connected to the light-emitting area is configured to: within one frame time, control at least one light-emitting pixel in each sub-region to delay light emission and / or turn off early, so as to reduce the time when all light-emitting pixels in the sub-region emit light simultaneously, and / or; Control at least one of the sub-regions to emit light with a delay and / or extinguish light early, so as to reduce the time when all the sub-regions emit light simultaneously.

2. The display module according to claim 1, characterized in that, The control module is configured to: within one frame, adjust the start and / or end of the light emission time of at least one of the light-emitting pixels in the sub-region according to a first preset duration, so that at least one of the light-emitting pixels in the sub-region emits light with a delay and / or turns off in advance, and / or; The starting point and / or ending point of the light emission time of at least one light-emitting pixel in the sub-region are adjusted according to the first preset duration and the light emission time of the adjacent light-emitting pixels, so that at least one light-emitting pixel in the sub-region emits light with a delay and / or extinguishes light prematurely.

3. The display module according to claim 1, characterized in that, The control module is configured to: within one frame, adjust the start and / or end of the light emission time of at least one of the sub-regions according to a second preset duration, so that at least one of the sub-regions emits light with a delay and / or extinguishes it in advance, and / or; The starting point and / or ending point of the light emission time of at least one of the sub-regions are adjusted according to the second preset duration and the light emission time of the adjacent sub-regions, so that at least one of the sub-regions emits light with a delay and / or extinguishes light in advance.

4. The display module according to any one of claims 1-3, characterized in that, The control module includes at least one control unit, each control unit being electrically connected to a corresponding sub-region to control the emission time of the light-emitting pixels in the corresponding sub-region.

5. The display module according to claim 4, characterized in that, The light-emitting pixels include: A pixel circuit, which is electrically connected to the control unit; A light-emitting element, wherein the pixel circuit is electrically connected to the light-emitting element; The control unit is configured to send a control signal to the pixel circuit, and the pixel circuit is configured to control the light emission time of the light-emitting element according to the control signal.

6. The display module according to claim 5, characterized in that, The control signal includes a grayscale counting signal, the control unit includes a light-emitting counter, the pixel circuit includes a PWM modulation module, the light-emitting counter is configured to output the grayscale counting signal, and the PWM modulation module is configured to control the pulse width of the PWM signal according to the grayscale counting signal and pixel data, wherein the pulse width of the PWM signal is proportional to the light-emitting time of the light-emitting pixel.

7. The display module according to claim 6, characterized in that, The grayscale counting signal has two counting modes: forward counting mode and reverse counting mode.

8. The display module according to claim 6 or 7, characterized in that, The control module includes: A timing module, which is electrically connected to the control unit, is configured to configure the light emission parameters of each light-emitting pixel; The delay module and the light emission counter are electrically connected to the timing module. The delay module and the light emission counter are configured to control the delay time of the light emission of the light emission pixel and / or the early extinguishing time of the light emission pixel according to the light emission parameters of the light emission pixel.

9. A control method for a display module, characterized in that, The display module includes a light-emitting area, the light-emitting area includes at least one sub-region, and each sub-region includes multiple light-emitting pixels; The control method includes: within one frame, controlling at least one of the light-emitting pixels in each sub-region to delay light emission and / or turn off light early, so as to reduce the time when all the light-emitting pixels in the sub-region emit light simultaneously, and / or controlling at least one sub-region to delay light emission and / or turn off light early, so as to reduce the time when all the sub-regions emit light simultaneously.

10. The control method for the display module according to claim 9, characterized in that, The control method includes: within one frame, adjusting the start and / or end of the light emission time of at least one light-emitting pixel in the sub-region according to a first preset duration, so that at least one light-emitting pixel in the sub-region emits light with a delay and / or turns off early, and / or; The starting point and / or ending point of the light emission time of at least one light-emitting pixel in the sub-region are adjusted according to the first preset duration and the light emission time of the adjacent light-emitting pixels, so that at least one light-emitting pixel in the sub-region emits light with a delay and / or turns off early.

11. The control method for the display module according to claim 9, characterized in that, The control method includes: within one frame, adjusting the start and / or end point of the light emission time of at least one of the sub-regions according to a second preset duration, so that at least one of the sub-regions emits light with a delay and / or extinguishes it in advance, and / or; Adjust the delayed emission and / or early extinguishing of at least one of the sub-regions according to the second preset duration and the emission time of the adjacent sub-regions.

12. The control method for the display module according to any one of claims 9-11, characterized in that, The light-emitting pixel includes a pixel circuit and a light-emitting element, and the pixel circuit is electrically connected to the light-emitting element; The control method includes: sending a control signal to the pixel circuit so that the pixel circuit controls the light-emitting element to emit light according to the control signal.

13. The control method for the display module according to claim 12, characterized in that, The control signal includes a grayscale counting signal, and the pixel circuit includes a PWM modulation module; The control method includes: outputting the grayscale counting signal to the PWM modulation module so that the PWM modulation module controls the pulse width of the PWM signal according to the grayscale counting signal and pixel data, wherein the pulse width of the PWM signal is proportional to the light emission time of the light-emitting pixel.

14. The control method for the display module according to claim 13, characterized in that, The control method includes: counting gray levels according to a counting mode signal, wherein the counting mode signal includes a forward counting mode signal and a reverse counting mode signal.

15. The control method for the display module according to claim 13 or 14, characterized in that, Configure the delay time and / or the early extinguishing time of each light-emitting pixel according to the light emission parameters of each light-emitting pixel.

16. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program that, when executed by a processor, implements the steps of the control method according to any one of claims 9-15.

17. A display device, characterized in that, include: Processor, and; A memory storing a computer program, which, when executed by the processor, implements the steps of the control method for the display module according to any one of claims 9-15.

18. A display device, characterized in that, Includes the display module as described in any one of claims 1-8.

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