Display panel driving device, driving method and electronic equipment

Abstract

This application discloses a driving device, driving method, and electronic device for a display panel, belonging to the field of display panel technology. The driving device connects each column driving unit in a first group of column driving units to a first column line, and each column driving unit in a second group of column driving units to a second column line. Simultaneously, each row driving unit in a first group of row driving units is connected to a first row line, and each row driving unit in the second group of row driving units is connected to a second row line. A digital switch module is then electrically connected to the second group of column driving units and the second group of row driving units, allowing the digital switch module to control the activation or deactivation of the second group of column driving units and the second group of row driving units, thereby enabling variable display pixels on the display panel.

Description

Technical Field

[0001] This application relates to the field of display panel technology, and more particularly to a display panel driving device, driving method and electronic device. Background Technology

[0002] The display pixels of existing LED display panels are fixed. That is, when displaying, both the column driver chip and the row driver chip of the display panel are working, which causes the LED beads on the display panel to run at the same time.

[0003] However, in scenarios where users rent LED display panels to display images on stage, the distance between the LED display panel and the front-row audience varies depending on the stage design. Since the display pixels of an LED display panel cannot be changed, if the distance between the LED display panel and the front-row audience is far, a product with a large pixel pitch needs to be selected; if the distance is close, a product with a small pixel pitch needs to be selected. Therefore, rental companies need to keep multiple product options on hand. Summary of the Invention

[0004] The main objective of this application is to provide a driving device, driving method, and electronic device for a display panel that can realize changes in display pixels.

[0005] To achieve the above objectives, a first aspect of this application provides a driving device for a display panel. The display panel includes multiple row lines spaced apart along a row direction and multiple column lines spaced apart along a column direction and intersecting the row lines insulated from them. The row lines connect to the anode of each light-emitting diode in the row direction, and the column lines connect to the cathode of each light-emitting diode in the column direction. The column lines include first column lines and second column lines, which are alternately arranged. The row lines include first row lines and second row lines, which are alternately arranged.

[0006] The driving device includes:

[0007] A first group of column driving units and a second group of column driving units, wherein the number of column driving units in the first group of column driving units is the same as the number of column driving units in the second group of column driving units, the first group of column driving units includes one or more column driving units, and each of the column driving units in the first group of column driving units is connected to the first column line; the second group of column driving units includes one or more column driving units, and each of the column driving units in the second group of column driving units is connected to the second column line.

[0008] A first group of line driving units and a second group of line driving units, wherein the number of line driving units in the first group of line driving units is the same as the number of line driving units in the second group of line driving units, the first group of line driving units includes one or more line driving units, and each of the line driving units in the first group of line driving units is connected to the first line; the second group of line driving units includes one or more line driving units, and each of the line driving units in the second group of line driving units is connected to the second line.

[0009] The timing control module is electrically connected to the first group of column driving units and the first group of row driving units;

[0010] A digital switch module is electrically connected to the second group of column drive units and the second group of row drive units. The digital switch module is used to control the second group of column drive units and the second group of row drive units to start or stop.

[0011] In one embodiment of this application, the driving device further includes:

[0012] A software module, electrically connected to the digital switch module, is used for:

[0013] Based on the distance between the display panel and the audience in the front row, a corresponding pixel lighting selection signal is generated;

[0014] The pixel illumination selection signal is sent to the digital switch module so that the digital switch module controls the second group of column drive units and the second group of row drive units to start or stop based on the pixel illumination selection signal.

[0015] In one embodiment of this application, generating a corresponding pixel selection signal based on the distance between the display panel and the front-row audience includes:

[0016] Determine whether the distance between the display panel and the front row audience is less than or equal to a first threshold;

[0017] If the distance between the display panel and the front row audience is less than or equal to the first threshold, a signal to select all pixels to be lit is generated.

[0018] If the distance between the display panel and the front row of viewers is greater than the first threshold, a partial pixel lighting selection signal is generated.

[0019] In one embodiment of this application, sending the pixel illumination selection signal to the digital switch module, so that the digital switch module controls the second group of column drive units and the second group of row drive units to start or stop based on the pixel illumination selection signal, includes:

[0020] The partial pixel illumination selection signal is sent to the digital switch module, causing the digital switch module to turn off, thereby controlling the second group of column drive units and the second group of row drive units to turn off;

[0021] The signal to select all pixels to be lit is sent to the digital switch module, which turns on the digital switch module to control the second group of column drive units and the second group of row drive units to start.

[0022] In one embodiment of this application, the partial pixel illumination selection signal includes a low-frequency signal, and the all pixel illumination signal includes a high-frequency signal.

[0023] To achieve the above objectives, a second aspect of this application provides a driving method for a display panel, driven by the driving device described in any embodiment of this application, the driving method comprising:

[0024] Based on the distance between the display panel and the audience in the front row, a corresponding pixel lighting selection signal is generated;

[0025] Based on the pixel illumination selection signal, the second set of column driving units and the second set of row driving units are controlled to start or stop, so as to control the display panel to illuminate all pixels or some pixels.

[0026] In one embodiment of this application, generating a corresponding pixel selection signal based on the distance between the display panel and the front-row audience includes:

[0027] Determine whether the distance between the display panel and the front row audience is less than or equal to a first threshold;

[0028] If the distance between the display panel and the front row audience is less than or equal to the first threshold, a signal to select all pixels to be lit is generated.

[0029] If the distance between the display panel and the front row of viewers is greater than the first threshold, a partial pixel lighting selection signal is generated.

[0030] In one embodiment of this application, controlling the second set of column driving units and the second set of row driving units to start or stop based on the pixel illumination selection signal, so as to control the display panel to illuminate all or part of its pixels, includes:

[0031] Based on the partial pixel illumination selection signal, the second group of column driving units and the second group of row driving units are controlled to be turned off, so as to control the partial pixels of the display panel to be illuminated;

[0032] Based on the selected signal for all pixels to be lit, the second set of column driving units and the second set of row driving units are activated to control all pixels of the display panel to be lit.

[0033] In one embodiment of this application, before generating a corresponding pixel illumination selection signal based on the distance between the display panel and the front-row audience, the method further includes:

[0034] Identify the distance between the display panel and the audience in the front row.

[0035] To achieve the above objectives, a third aspect of the present application provides an electronic device, the electronic device including a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the method described in the second aspect of the present application.

[0036] In the technical solution proposed in this application, each column driving unit in the first group of column driving units is connected to a first column line, and each column driving unit in the second group of column driving units is connected to a second column line. Simultaneously, each row driving unit in the first group of row driving units is connected to a first row line, and each row driving unit in the second group of row driving units is connected to a second row line. A digital switch module is then electrically connected to the second group of column driving units and the second group of row driving units, allowing the digital switch module to control the activation or deactivation of the second group of column driving units and the second group of row driving units, thereby enabling variable display pixels on the display panel. If the digital switch module activates the second group of column driving units and the second group of row driving units, full-pixel display of the display panel can be achieved; if the digital switch module deactivates the second group of column driving units and the second group of row driving units, partial pixel display of the display panel can be achieved, thus allowing the display panel product to adapt to more diverse stage design scenarios. Attached Figure Description

[0037] Figure 1 This is a schematic diagram of the architecture of the driving device for the display panel provided in Embodiment 1 of this application.

[0038] Figure 2 This is a schematic diagram of the architecture of the driving device for the display panel provided in Embodiment 2 of this application.

[0039] Figure 3 This is a schematic diagram of the architecture of the driving device for the display panel provided in Embodiment 3 of this application.

[0040] Figure 4 This is a flowchart of a display panel driving method provided in an embodiment of this application.

[0041] Figure 5 This is a flowchart illustrating the steps of generating corresponding pixel selection signals based on the distance between the display panel and the audience in the front row, as provided in an embodiment of this application.

[0042] Figure 6This is a flowchart illustrating the steps of controlling the second group of column driving units and the second group of row driving units to start or stop based on a pixel illumination selection signal, thereby controlling the full or partial illumination of the display panel pixels.

[0043] Figure 7 This is a schematic diagram showing some pixels lit up on the display panel.

[0044] Figure 8 This is a schematic diagram of the display panel with all pixels lit up.

[0045] Figure 9 This is a schematic diagram of the hardware structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0046] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0047] It should be noted that although functional modules are divided in the device schematic diagram and a logical order is shown in the flowchart, in some cases, the steps shown or described may be performed in a different order than the module division in the device or the order in the flowchart. The terms "first," "second," etc., in the specification, claims, and the aforementioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing embodiments of this application only and is not intended to limit this application.

[0049] The display pixels of existing LED display panels are fixed. That is, when displaying, both the column driver chip and the row driver chip of the display panel are working, which causes the LED beads on the display panel to run at the same time.

[0050] When designing a display panel, the number of LED columns driven by the corresponding column driver chip and the number of LED rows driven by the row driver chip already limit the total number of LEDs on the panel, i.e., the so-called pixels. For example, a 100*100 pixel panel means that the panel has a total of 10,000 LEDs, with 100 pixels on the X-axis and 100 pixels on the Y-axis. Once the design and testing of the display panel are completed, the number of pixels on the panel is fixed and cannot be changed.

[0051] However, in scenarios where users rent LED display panels to display images on stage, the distance between the LED display panel and the front-row audience varies depending on the stage design. Since the display pixels of an LED display panel cannot be changed, if the distance between the LED display panel and the front-row audience is far, a product with a large pixel pitch needs to be selected; if the distance is close, a product with a small pixel pitch needs to be selected. Therefore, rental companies need to keep multiple product options on hand.

[0052] Based on this, this application proposes a driving device for a display panel, which can realize the change of display pixels through the design of the driving architecture.

[0053] The display panel includes multiple row lines spaced apart along the row direction and multiple column lines spaced apart along the column direction and intersecting the row lines insulated from each other. The row lines connect to the anode of each light-emitting diode in the row direction, and the column lines connect to the cathode of each light-emitting diode in the column direction. The column lines include a first column line and a second column line, which are alternately arranged. The row lines include a first row line and a second row line, which are alternately arranged.

[0054] The driving device includes: a first set of column driving units, a second set of column driving units, a first set of row driving units, a second set of row driving units, a timing control module, and a digital switch module. The first set of column driving units contains the same number of column driving units as the second set of column driving units. Each column driving unit in the first set of column driving units is connected to a first column line. Similarly, the second set of column driving units contains the same number of row driving units as the second set of row driving units. Each row driving unit in the first set of row driving units is connected to a first row line. Likewise, the second set of row driving units contains the same number of row driving units as the second set of row driving units. Each row driving unit in the first set of row driving units is connected to a first row line.

[0055] The timing control module is electrically connected to the first group of column driving units and the first group of row driving units. Thus, the timing control module can generate corresponding row driving control signals and column driving control signals according to the data to be displayed, and transmit them to the corresponding first group of row driving units and the first group of column driving units. It can control the light-emitting diodes corresponding to all the first column lines connected to the first group of column driving units and all the first row lines connected to the first group of row driving units to light up.

[0056] The digital switch module is electrically connected to the second group of column drive units and the second group of row drive units. The digital switch module controls the activation or deactivation of the second group of column drive units and the second group of row drive units. When the digital switch module is on, it activates the second group of column drive units and the second group of row drive units, thereby illuminating the corresponding LEDs on all the second column lines connected to the second group of column drive units and all the second row lines connected to the second group of row drive units. When the digital switch module is off, it deactivates the second group of column drive units and the second group of row drive units, thereby deactivating the corresponding LEDs on all the second column lines connected to the second group of column drive units and all the second row lines connected to the second group of row drive units.

[0057] It should be noted that, since the first set of column driving units and the first set of row driving units are electrically connected to the timing control signal, the LEDs corresponding to all the first column lines connected to the first set of column driving units and all the first row lines connected to the first set of row driving units can operate normally according to the data to be displayed. The second set of column driving units and the second set of row driving units are electrically connected to the digital switch module, so the LEDs corresponding to all the second column lines connected to the second set of column driving units and all the second row lines connected to the second set of row driving units can be controlled by the digital switch module to be lit or not lit. Because the first row lines and second row lines are interleaved, and the first column lines and second column lines are interleaved, the digital switch module can control the lighting of all or some pixels on the display panel, thus achieving pixel variation.

[0058] Example 1

[0059] Reference Figure 1 , Figure 1 This is a schematic diagram of the architecture of the driving device for the display panel provided in Embodiment 1 of this application. Figure 1 As shown, the display panel includes multiple row lines spaced apart along the row direction and multiple column lines spaced apart along the column direction and intersecting the row lines insulated from them. The row lines connect to the anode of each light-emitting diode (LED) in the row direction, and the column lines connect to the cathode of each light-emitting diode (LED) in the column direction. The column lines include a first column line 11 and a second column line 12, which are alternately arranged. The row lines include a first row line 21 and a second row line 22, which are alternately arranged.

[0060] The driving device includes a first set of column driving units 30 and a second set of column driving units 40. The first set of column driving units 30 includes one column driving unit (e.g., ...). Figure 1 The column driving unit A shown is connected to each of the first column lines 11. The second group of column driving units 40 includes a column driving unit (such as...). Figure 1The column driving unit B shown is connected to each of the second column lines 12.

[0061] The driving device also includes a first group of row driving units 50 and a second group of column driving units 60. The first group of row driving units 50 includes one row driving unit (e.g., ...). Figure 1 The row driving unit A shown is connected to each of the first row lines 21. The second group of row driving units 60 includes a row driving unit (such as...). Figure 1 The row driving unit B shown is connected to each of the second row lines 22.

[0062] The drive unit also includes a timing control module 70, which is electrically connected to the first group of column drive units 30 and the first group of row drive units 50.

[0063] The drive unit also includes a digital switch module 80, which is electrically connected to the second group of column drive units 40 and the second group of row drive units 60. The digital switch module 80 is used to control the second group of column drive units 40 and the second group of row drive units 60 to start or stop.

[0064] In this embodiment, column driver unit A is connected to all first column lines 11, and column driver unit B is connected to all second column lines 12. Row driver unit A is connected to all first row lines 21, and row driver unit B is connected to all second row lines 22. Column driver unit B and row driver unit B are connected to a digital switch module 80 (such as a digital switch chip), so that the digital switch module 80 can control the column driver unit B and row driver unit B to start or stop, thereby controlling the corresponding light-emitting diodes on all second column lines 12 connected to column driver unit B and all second row lines 12 connected to row driver unit B to be lit or unlit, and thus controlling the display panel to light up all pixels or some pixels, realizing the change of display pixels.

[0065] Example 2

[0066] Reference Figure 2 , Figure 2 This is a schematic diagram of the architecture of the driving device for the display panel provided in Embodiment 2 of this application. Figure 2 As shown, the display panel includes multiple row lines spaced apart along the row direction and multiple column lines spaced apart along the column direction and intersecting the row lines insulated from them. The row lines connect to the anode of each light-emitting diode (LED) in the row direction, and the column lines connect to the cathode of each light-emitting diode (LED) in the column direction. The column lines include a first column line 11 and a second column line 12, which are alternately arranged. The row lines include a first row line 21 and a second row line 22, which are alternately arranged.

[0067] The driving device includes a first set of column driving units 30 and a second set of column driving units 40. The first set of column driving units 30 includes two column driving units (e.g., ...). Figure 2 The column driving units A and B shown are connected to the first column line 11. The second group of column driving units 40 includes two column driving units (such as...). Figure 2 The column driving units C and D shown are connected to the second column line 12.

[0068] The driving device also includes a first set of row driving units 50 and a second set of column driving units 60. The first set of row driving units 50 includes two row driving units (e.g., ...). Figure 2 The row driving unit A and row driving unit B shown are connected to the first row line 21. The second group of row driving units 60 includes two row driving units (such as row driving units A and B). Figure 2 The row drive unit C and row drive unit D shown are connected to the second row line 22.

[0069] The drive unit also includes a timing control module 70, which is electrically connected to the first group of column drive units 30 and the first group of row drive units 50.

[0070] The drive unit also includes a digital switch module 80, which is electrically connected to the second group of column drive units 40 and the second group of row drive units 60. The digital switch module 80 is used to control the second group of column drive units 40 and the second group of row drive units 60 to start or stop.

[0071] In this embodiment, each column driving unit (including column driving unit C and column driving unit D) in the second group of column driving units 40 is connected to the second column line 12. Each row driving unit (including row driving unit C and row driving unit D) in the second group of row driving units 60 is connected to the second row line 22. The second group of column driving units 40 and the second group of row driving units 60 are connected to a digital switch module 80 (such as a digital switch chip), so that the digital switch module 80 can control all column driving units in the second group of column driving units 40 and all row driving units in the second group of row driving units to start or stop simultaneously. This allows control over the lighting or delighting of the corresponding LEDs on all the second column lines 12 connected to the second group of column driving units 40 and all the second row lines 12 connected to the second group of row driving units 60, thereby controlling the lighting of all or part of the pixels on the display panel and enabling changes in the displayed pixels.

[0072] Example 3

[0073] Reference Figure 3 , Figure 3This is a schematic diagram of the architecture of the driving device for the display panel provided in Embodiment 3 of this application. Figure 3 As shown, the display panel includes multiple row lines spaced apart along the row direction and multiple column lines spaced apart along the column direction and intersecting the row lines insulated from them. The row lines connect to the anode of each light-emitting diode (LED) in the row direction, and the column lines connect to the cathode of each light-emitting diode (LED) in the column direction. The column lines include a first column line 11 and a second column line 12, which are alternately arranged. The row lines include a first row line 21 and a second row line 22, which are alternately arranged.

[0074] The driving device includes a first set of column driving units 30 and a second set of column driving units 40. The first set of column driving units 30 includes three column driving units (e.g., ...). Figure 3 The column driving units A, B, and C shown are connected to the first column line 11. The second group of column driving units 40 includes three column driving units (such as...). Figure 3 The column driving units D, E, and F shown are connected to the second column line 12.

[0075] The driving device also includes a first group of row driving units 50 and a second group of column driving units 60. The first group of row driving units 50 includes three row driving units (e.g., ...). Figure 3 The row driving units A, B, and C shown are connected to the first row line 21. The second group of row driving units 60 includes three row driving units (e.g., row driving units A, B, and C). Figure 3 The row driving units D, E, and F shown are connected to the second row line 22.

[0076] The drive unit also includes a timing control module 70, which is electrically connected to the first group of column drive units 30 and the first group of row drive units 50.

[0077] The drive unit also includes a digital switch module 80, which is electrically connected to the second group of column drive units 40 and the second group of row drive units 60. The digital switch module 80 is used to control the second group of column drive units 40 and the second group of row drive units 60 to start or stop.

[0078] In this embodiment, each column driving unit (including column driving unit D, column driving unit E, and column driving unit F) in the second group of column driving units 40 is connected to the second column line 12. Each row driving unit (including row driving unit D, row driving unit E, and row driving unit F) in the second group of row driving units 60 is connected to the second row line 22. The second group of column driving units 40 and the second group of row driving units 60 are connected to a digital switch module 80 (such as a digital switch chip), so that the digital switch module 80 can control all column driving units in the second group of column driving units 40 and all row driving units in the second group of row driving units to start or stop simultaneously. This allows control over the lighting or delighting of the corresponding LEDs on all the second column lines 12 connected to the second group of column driving units 40 and all the second row lines 12 connected to the second group of row driving units 60, thereby controlling the lighting of all or part of the pixels on the display panel and enabling changes in the displayed pixels.

[0079] Reference Figures 1-3 The driving device also includes a software module 90, which is electrically connected to the digital switch module 80. The software module 90 generates a corresponding pixel illumination selection signal based on the distance between the display panel and the front row of viewers, and sends the pixel illumination selection signal to the digital switch module 80, so that the digital switch module 80 controls the second group of column driving units 40 and the second group of row driving units 60 to start or stop based on the pixel illumination selection signal.

[0080] The software module 90 can determine whether the distance between the display panel and the audience in the front row is less than or equal to a first threshold. If the distance is greater than the first threshold, it indicates that the distance is too far, and a partial pixel illumination selection signal is generated. This partial pixel illumination selection signal is then sent to the digital switch module 80, causing the digital switch module 80 to shut down. This shuts down all column drive units in the second group of column drive units 40 and all row drive units in the second group of row drive units 60, thus preventing the corresponding LEDs on all second column lines 12 connected to the second group of column drive units 40 and all second row lines 12 connected to the second group of row drive units 60 from lighting up. This allows partial pixel illumination on the display panel, reducing energy consumption. Conversely, if the distance is less than or equal to the first threshold, it indicates that the distance is too close, and a full pixel illumination selection signal is generated. The signal to illuminate all pixels is then sent to the digital switch module 80, which turns on the digital switch module 80. This allows the activation of all column drive units in the second group of column drive units 40 and all row drive units in the second group of row drive units 60. This, in turn, illuminates the corresponding LEDs on all second column lines 12 connected to the second group of column drive units 40 and all second row lines 12 connected to the second group of row drive units 60. This, in turn, illuminates all pixels on the display panel. When the display panel is far from the audience in the front row, illuminating all pixels improves display clarity and meets display requirements. In other words, this embodiment can control the display panel to display all or only some pixels based on the distance between the display panel and the audience in the front row. This reduces energy consumption when the display panel is close to the audience and improves display clarity when the distance is far, thus meeting display requirements.

[0081] In some embodiments, the partial pixel illumination selection signal includes a low-frequency signal, and the full pixel illumination signal includes a high-frequency signal. That is, when the distance between the display panel and the front-row audience is greater than a first threshold, the software module 90 sends a low-frequency signal to the digital switch module 80, thereby enabling the digital switch module 80 to turn off based on the low-frequency signal. When the distance between the display panel and the front-row audience is less than or equal to the first threshold, the software module 90 sends a high-frequency signal to the digital switch module 80, thereby enabling the digital switch module 80 to turn on based on the high-frequency signal.

[0082] Reference Figure 4 , Figure 4 This is a flowchart of a display panel driving method provided in one embodiment of this application, driven by a driving device provided in any embodiment of this application, including but not limited to steps S410 to S420.

[0083] Step S410: Based on the distance between the display panel and the audience in the front row, generate a corresponding pixel lighting selection signal.

[0084] In this embodiment, the software module 90 can identify the distance between the display panel and the audience in the front row, and generate a corresponding pixel lighting selection signal based on the distance. The distance between the display panel and the audience in the front row can be detected by a distance detection device (such as an infrared rangefinder, ultrasonic rangefinder, laser rangefinder, etc.). The distance detection device is connected to the software module 90, thereby sending the detected distance between the display panel and the audience in the front row to the software module 90.

[0085] Reference Figure 5 , Figure 5 This is a flowchart of the steps for generating a corresponding pixel selection signal based on the distance between the display panel and the front row audience, as provided in the embodiments of this application, including but not limited to steps S510 to S530.

[0086] Step S510: Determine whether the distance between the display panel and the front row audience is less than or equal to the first threshold.

[0087] Step S520: If the distance between the display panel and the front row audience is less than or equal to the first threshold, then generate a signal to select all pixels to light up.

[0088] In step S530, if the distance between the display panel and the front row audience is greater than the first threshold, a partial pixel lighting selection signal is generated.

[0089] In this embodiment, after obtaining the distance between the display panel and the audience in the front row, the software module 90 can determine whether the distance between the display panel and the audience in the front row is less than or equal to a first threshold. If the distance between the display panel and the audience in the front row is greater than the first threshold, a partial pixel lighting signal is generated, such as a low-frequency signal. If the distance between the display panel and the audience in the front row is less than or equal to the first threshold, a full pixel lighting selection signal is generated, such as a high-frequency signal.

[0090] Step S420: Based on the pixel illumination selection signal, control the second group of column driving units and the second group of row driving units to start or stop, so as to control the display panel to illuminate all pixels or some pixels.

[0091] In this embodiment, after generating the pixel illumination selection signal, the software module 90 can send the generated pixel illumination signal to the digital switch module 80, so that the digital switch module 80 can control the second group of column driving units 40 and the second group of row driving units 60 to start or stop based on the pixel illumination selection signal, so as to control the corresponding light-emitting diodes on all the second column lines 12 connected to the second group of column driving units 40 and all the second row lines 12 connected to the second group of row driving units 60 to light up or not light up, thereby controlling the display panel to light up all pixels or some pixels.

[0092] Reference Figure 6 , Figure 6 This is a flowchart of the steps provided in one embodiment of the present application to control the second group of column driving units and the second group of row driving units to start or stop based on the pixel illumination selection signal, so as to control the full or partial illumination of the display panel, including but not limited to steps S610 to S620.

[0093] Step S610: Based on the partial pixel illumination selection signal, control the second group of column driving units and the second group of row driving units to turn off, so as to control the partial pixels of the display panel to be illuminated.

[0094] In step S620, based on the all-pixel-light-up selection signal, the second group of column driving units and the second group of row driving units are activated to control all pixels of the display panel to light up.

[0095] In this embodiment, if the digital switch module 80 receives a partial pixel lighting signal (such as a low-frequency signal) sent by the software module 90, the digital switch module 80 can turn off based on this partial pixel lighting selection signal to control the second group of column driving units 40 and the second group of row driving units 60 to turn off, thereby controlling the corresponding light-emitting diodes on all the second column lines 12 connected to the second group of column driving units 40 and all the second row lines 12 connected to the second group of row driving units 60 to not light up, thus controlling the partial pixel lighting of the display panel. Figure 1 Taking the schematic diagram of the driving device shown as an example, the schematic diagram of the pixels lit up on the display panel is as follows: Figure 7 As shown.

[0096] If the digital switch module 80 receives a full pixel illumination signal (such as a high-frequency signal) sent by the software module 90, the digital switch module 80 can be turned on based on this full pixel illumination selection signal to control the second group of column driving units 40 and the second group of row driving units 60 to start, thereby controlling the corresponding light-emitting diodes on all the second column lines 12 connected to the second group of column driving units 40 and all the second row lines 12 connected to the second group of row driving units 60 to light up, thus controlling the full pixel illumination of the display panel. Figure 1Taking the schematic diagram of the driving device shown as an example, the schematic diagram of the display panel with all pixels lit up is as follows: Figure 8 As shown.

[0097] In this embodiment, the display panel can be controlled to display all pixels or only some pixels based on the distance between the display panel and the audience in the front row. This reduces the energy consumption of the display panel when the distance between the display panel and the audience in the front row is close, and improves the display clarity when the distance between the display panel and the audience in the front row is far, thus meeting the display requirements.

[0098] This application also provides an electronic device, which includes a memory and a processor. The memory stores a computer program, and the processor executes the computer program to implement the above-described exhaust gas recirculation valve opening control method. This electronic device can be any smart terminal, including tablet computers, in-vehicle computers, etc.

[0099] Please see Figure 9 , Figure 9 This is a schematic diagram of the hardware structure of an electronic device provided in an embodiment of this application. The electronic device includes:

[0100] The processor 901 can be implemented using a general-purpose CPU (Central Processing Unit), microprocessor, application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this application.

[0101] The memory 902 can be implemented as a read-only memory (ROM), a static storage device, a dynamic storage device, or a random access memory (RAM). The memory 902 can store the operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented through software or firmware, the relevant program code is stored in the memory 902 and is called and executed by the processor 901.

[0102] The input / output interface 903 is used to implement information input and output;

[0103] The communication interface 904 is used to enable communication and interaction between this device and other devices. Communication can be achieved through wired means (such as USB, Ethernet cable, etc.) or wireless means (such as mobile network, WIFI, Bluetooth, etc.).

[0104] Bus 905 transmits information between various components of the device (e.g., processor 901, memory 902, input / output interface 903, and communication interface 904);

[0105] The processor 901, memory 902, input / output interface 903, and communication interface 904 are connected to each other within the device via bus 905.

[0106] The embodiments described in this application are for the purpose of more clearly illustrating the technical solutions of the embodiments of this application, and do not constitute a limitation on the technical solutions provided by the embodiments of this application. As those skilled in the art will know, with the evolution of technology and the emergence of new application scenarios, the technical solutions provided by the embodiments of this application are also applicable to similar technical problems.

[0107] Those skilled in the art will understand that the technical solutions shown in the figures do not constitute a limitation on the embodiments of this application, and may include more or fewer steps than shown, or combine certain steps, or different steps.

[0108] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs.

[0109] Those skilled in the art will understand that all or some of the steps in the methods disclosed above, as well as the functional modules / units in the systems and devices, can be implemented as software, firmware, hardware, or suitable combinations thereof.

[0110] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0111] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0112] In the several embodiments provided in this application, it should be understood that the disclosed apparatus and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of the units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0113] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0114] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0115] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes multiple instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing programs, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0116] The preferred embodiments of the present application have been described above with reference to the accompanying drawings, but this does not limit the scope of the claims of the present application. Any modifications, equivalent substitutions, and improvements made by those skilled in the art without departing from the scope and substance of the embodiments of the present application shall be within the scope of the claims of the present application.

Claims

1. A driving device for a display panel, characterized in that, The display panel includes multiple row lines spaced apart along the row direction and multiple column lines spaced apart along the column direction and intersecting the row lines insulated from them. The row lines connect to the anode of each light-emitting diode in the row direction, and the column lines connect to the cathode of each light-emitting diode in the column direction. The column lines include a first column line and a second column line, which are alternately arranged. The row lines include a first row line and a second row line, which are alternately arranged. The driving device includes: A first group of column driving units and a second group of column driving units, wherein the number of column driving units in the first group of column driving units is the same as the number of column driving units in the second group of column driving units, the first group of column driving units includes one or more column driving units, and each of the column driving units in the first group of column driving units is connected to the first column line; the second group of column driving units includes one or more column driving units, and each of the column driving units in the second group of column driving units is connected to the second column line. A first group of line driving units and a second group of line driving units, wherein the number of line driving units in the first group of line driving units is the same as the number of line driving units in the second group of line driving units, the first group of line driving units includes one or more line driving units, and each of the line driving units in the first group of line driving units is connected to the first line; the second group of line driving units includes one or more line driving units, and each of the line driving units in the second group of line driving units is connected to the second line. The timing control module is electrically connected to the first group of column driving units and the first group of row driving units; A digital switch module is electrically connected to the second group of column drive units and the second group of row drive units. The digital switch module is used to control the second group of column drive units and the second group of row drive units to start or stop. The drive device further includes: A software module, electrically connected to the digital switch module, is used for: Based on the distance between the display panel and the audience in the front row, a corresponding pixel lighting selection signal is generated; The pixel illumination selection signal is sent to the digital switch module so that the digital switch module controls the second group of column drive units and the second group of row drive units to start or stop based on the pixel illumination selection signal.

2. The driving device according to claim 1, characterized in that, The step of generating a corresponding pixel selection signal based on the distance between the display panel and the front-row audience includes: Determine whether the distance between the display panel and the front row audience is less than or equal to a first threshold; If the distance between the display panel and the front row audience is less than or equal to the first threshold, a signal to select all pixels to be lit is generated. If the distance between the display panel and the front row of viewers is greater than the first threshold, a partial pixel lighting selection signal is generated.

3. The driving device according to claim 2, characterized in that, Sending the pixel illumination selection signal to the digital switch module, so that the digital switch module controls the second group of column drive units and the second group of row drive units to start or stop based on the pixel illumination selection signal, includes: The partial pixel illumination selection signal is sent to the digital switch module, causing the digital switch module to turn off, thereby controlling the second group of column drive units and the second group of row drive units to turn off; The signal to select all pixels to be lit is sent to the digital switch module, which turns on the digital switch module to control the second group of column drive units and the second group of row drive units to start.

4. The driving device according to claim 2 or 3, characterized in that, The partial pixel illumination selection signal includes a low-frequency signal, and the total pixel illumination signal includes a high-frequency signal.

5. A driving method for a display panel, driven by the driving device according to any one of claims 1-4, the driving method comprising: Based on the distance between the display panel and the audience in the front row, a corresponding pixel lighting selection signal is generated; Based on the pixel illumination selection signal, the second set of column driving units and the second set of row driving units are controlled to start or stop, so as to control the display panel to illuminate all pixels or some pixels.

6. The method according to claim 5, characterized in that, The step of generating a corresponding pixel selection signal based on the distance between the display panel and the front-row audience includes: Determine whether the distance between the display panel and the front row audience is less than or equal to a first threshold; If the distance between the display panel and the front row audience is less than or equal to the first threshold, a signal to select all pixels to be lit is generated. If the distance between the display panel and the front row of viewers is greater than the first threshold, a partial pixel lighting selection signal is generated.

7. The method according to claim 6, characterized in that, The step of controlling the second set of column driving units and the second set of row driving units to start or stop based on the pixel illumination selection signal, so as to control the illumination of all or part of the pixels of the display panel, includes: Based on the partial pixel illumination selection signal, the second group of column driving units and the second group of row driving units are controlled to be turned off, so as to control the partial pixels of the display panel to be illuminated; Based on the selected signal for all pixels to be lit, the second set of column driving units and the second set of row driving units are activated to control all pixels of the display panel to be lit.

8. The method according to claim 6, characterized in that, Before generating the corresponding pixel illumination selection signal based on the distance between the display panel and the front-row audience, the method further includes: Identify the distance between the display panel and the audience in the front row.

9. An electronic device, characterized in that, The electronic device includes a memory and a processor, the memory storing a computer program, and the processor executing the computer program to implement the method according to any one of claims 5-8.

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