Display device, power supply control method, power supply control device and display equipment

Abstract

The embodiments of the present disclosure provide a display device, a power supply control method, a power supply control device and a display device, wherein the display device includes: a display panel and multiple power supply groups, the display panel includes multiple light-emitting components, a first power line and a second power line, the first power line and the second power line are both coupled to the light-emitting components; each power supply group includes at least one power module, and each power supply group is connected to the first power line and the second power line. The power supply control method includes: determining an operating mode of the display device, the operating mode corresponds to the power consumption state of the display device; according to the operating mode of the display device, controlling the multiple power supply groups to switch operations according to preset conditions to provide electrical signals to the first power line and the second power line. The technical solution of the present disclosure can avoid a single power supply group from operating in a high temperature state for a long time by controlling the switching operations of multiple power supply groups, thereby reducing the aging speed of the display device and extending the service life of the display device.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular to a display device, a power supply control method, a power supply control device, and a display equipment. Background Art

[0002] OLED (Organic Light Emitting Diode) display device is a display technology that has gradually developed in recent years. OLED display has the advantages of fast response speed, high contrast, wide viewing angle, low energy consumption and flexible display. It will have great development in the field of flat panel displays in the future.

[0003] In the related art, a display panel is provided with a power supply group. The continuous heating of the power supply group will accelerate the aging of some areas, thereby affecting the life of the display device. Summary of the Invention

[0004] Embodiments of the present disclosure provide a display device, a power supply control method, a power supply control device, and a display apparatus to solve or alleviate one or more technical problems in the prior art.

[0005] As a first aspect of an embodiment of the present disclosure, an embodiment of the present disclosure provides a display device, comprising: a display panel and multiple power supply groups, the display panel comprising multiple light-emitting components, a first power line and a second power line, the first power line and the second power line are both coupled to the light-emitting components; each power supply group comprises at least one power module, each power supply group is connected to the first power line and the second power line, and the multiple power supply groups are configured to switch operation according to preset conditions based on the working mode of the display device to provide the first power line and the second power line with the working power required by the light-emitting components.

[0006] In some possible implementations, the display device further includes a flexible circuit board and a printed circuit board, the display panel is connected to the flexible circuit board, the flexible circuit board is connected to the printed circuit board, a plurality of power supply groups are arranged on the printed circuit board at intervals from each other, each power supply group is connected to the first power line and the second power line through the printed circuit board and the flexible circuit board, and the flexible circuit board is configured to bend toward the back side of the display panel so that the printed circuit board is attached to the back side of the display panel.

[0007] In some possible implementations, the light emitting component includes an organic light emitting diode.

[0008] As a second aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a power supply control method, which is applied to the display device of any one of the embodiments disclosed in the first aspect, and the method includes:

[0009] determining an operating mode of the display device, the operating mode corresponding to a power consumption state of the display device;

[0010] According to the working mode of the display device, the plurality of power supply groups are controlled to switch and work according to preset conditions to provide electrical signals to the first power line and the second power line.

[0011] In some possible implementations, the power supply group switching operation time is between two frames.

[0012] In some possible implementations, the operating mode includes a first operating mode and a second operating mode, and the preset condition includes a first time interval and a second time interval;

[0013] When the operating mode of the display device is the first operating mode, the preset condition includes a first time interval; when the operating mode of the display device is the second operating mode, the preset condition includes a second time interval;

[0014] The power consumption of the first working mode is greater than the power consumption of the second working mode; and the first time interval is shorter than the second time interval.

[0015] In some possible implementations, the preset condition includes a first time interval and a second time interval. The first time interval is an integer multiple of the frame duration, and the second time interval is an integer multiple of the frame duration.

[0016] In some possible implementations, the preset condition includes a preset temperature, and controlling the multiple power supply groups to switch operations according to the preset condition includes:

[0017] When the temperature of the current power supply group is greater than or equal to the preset temperature, the control switches to the next power supply group for operation.

[0018] In some possible implementations, controlling multiple power supply groups to switch operations according to preset conditions includes:

[0019] According to the preset conditions, corresponding command signals are sent to each power supply group to control the operation of the selected power supply group.

[0020] In some possible implementations, the operating mode includes a third operating mode, and the method further includes:

[0021] When the operation mode of the display device is the third operation mode, one of the plurality of power supply groups is selected to operate.

[0022] In some possible implementations, the method further includes:

[0023] Determining, based on the received original image data, that the image to be displayed includes main image data and sub-image data;

[0024] Processing the secondary image data using a current limiting factor to obtain processed secondary image data;

[0025] The display panel is controlled to display the main image data and the processed sub-image data.

[0026] As a third aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a power supply control device, which is applied to the display device of any one of the embodiments disclosed in the first aspect. The power supply control device includes:

[0027] a mode determination module, configured to determine an operating mode of the display device, the operating mode corresponding to a power consumption state of the display device;

[0028] The control module is used to control the multiple power supply groups to switch and operate according to preset conditions according to the working mode of the display device, so as to provide electrical signals to the first power line and the second power line.

[0029] As a fourth aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a display device, including the display device of any one of the embodiments disclosed in the first aspect, and also including the power supply control device of the embodiment disclosed in the third aspect.

[0030] The technical solution of the disclosed embodiment can prevent a single power supply group from continuously operating in a high-temperature state, thereby reducing the aging rate of the display device, extending the service life of the display device, improving the efficiency of the power supply group, meeting customers' high-quality needs, and enhancing the product's market competitiveness.

[0031] The above summary is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments and features described above, further aspects, embodiments and features of the present disclosure will be readily apparent by reference to the accompanying drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the multiple drawings represent the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments according to the present disclosure and should not be regarded as limiting the scope of the present disclosure.

[0033] Figure 1 Schematic diagram of a driving structure of an OLED display device in related art;

[0034] Figure 2 A schematic structural diagram of a display device according to an embodiment of the present disclosure is shown;

[0035] Figure 3 is a schematic structural diagram of a pixel driving circuit in one embodiment;

[0036] Figure 4 Schematic diagram of a power supply control method according to an embodiment of the present disclosure;

[0037] Figure 5 This is a schematic diagram of an expanded display device in one embodiment of the present disclosure;

[0038] Figure 6 This is a test curve diagram of temperature rise at a test point in an embodiment of the present disclosure;

[0039] Figure 7A A schematic diagram of a display panel displaying an image in an image scene;

[0040] Figure 7B A schematic diagram of a display panel displaying an image in another imaging scenario;

[0041] Figure 7C A schematic diagram of a display panel displaying an image in another imaging scenario;

[0042] Figure 8 This is a structural block diagram of a power supply control device according to an embodiment of the present disclosure;

[0043] Figure 9 This is a structural block diagram of the control part of a display device according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0044] In the following, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present disclosure, and different embodiments may be combined in any manner without conflict. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0045] OLED displays, as display components of electronic devices, have been widely used in small-sized terminal products (such as mobile phones). Medium and large-sized OLED display products are also gradually being used in tablets and laptops.

[0046] Figure 1 Schematic diagram of the driving structure of an OLED display device in the related art. In the related art, the display device integrates active components such as a timing controller (Tcon), multiple source driver chips 14 (Source IC), a power management chip (PMIC), a touch control chip (TIC), and an electroluminescent chip 131 (ELIC). Figure 1As shown, a flexible printed circuit (FPC) 300 is bound and connected to the display panel 100, and the other end of the flexible printed circuit 300 is connected to a printed circuit board (PCB) 400. For example, the electroluminescent chip 131 can be set on the printed circuit board 400. The display panel 100 is provided with a pixel driving circuit for controlling the operation of the OLED device. The power required for the operation of the pixel driving circuit includes a first power signal V dd and the second power signal V ss The electroluminescent chip 131 provides a first power signal V to the display panel 100 through the printed circuit board 400 and the flexible circuit board 300. dd and the second power signal V ss .

[0047] In a display device, active components continuously generate heat when in operation, causing significant heating of the printed circuit board (PCB). This is especially true for medium- to large-sized OLED display products. Due to the increased size, the OLED components require greater current at the same brightness, requiring the electroluminescent chip 131 to provide greater output power, leading to even greater heating of the PCB 400.

[0048] For medium and large-sized OLED products, the printed circuit board 400 can be placed on the back side of the display panel 100 by bending the flexible circuit board 300, which can greatly reduce the border of the display panel. However, this makes the printed circuit board 400 directly contact the back side of the display panel 100.

[0049] like Figure 1 As shown, in related art, medium- to large-sized OLED display panels use a single electroluminescent chip 131 to provide power for all light-emitting components. Electroluminescent chip 131 is located on a printed circuit board 400. When printed circuit board 400 is attached to the back side of display panel 100, electroluminescent chip 131 is attached to the back side of display panel 100. The temperature rise near electroluminescent chip 131 is relatively large, resulting in higher temperatures. This accelerates the aging of the OLED devices located near electroluminescent chip 131, shortening the overall product lifespan.

[0050] In order to solve the problem of local temperature rise and aging of a display device, an embodiment of the present disclosure provides a display device. The technical solution of the present disclosure is described in detail below through embodiments.

[0051] Figure 2 FIG. 1 is a schematic diagram showing the structure of a display device according to an embodiment of the present disclosure. Figure 2As shown, an embodiment of the present disclosure provides a display device 10, which includes a display panel 100 and a plurality of power supply groups 200. The display panel 100 includes a plurality of light-emitting components, a first power line 120 and a second power line 130. The first power line 120 and the second power line 130 are both coupled to the light-emitting components. Each power supply group 200 includes at least one power supply module, and each power supply group 200 is connected to the first power line 120 and the second power line 130. The plurality of power supply groups 200 are configured to switch operations according to preset conditions based on the working mode of the display device 10 to provide the first power line 120 and the second power line 130 with the working power required by the light-emitting components. For example, the power supply group 200 in a working state can provide a first power signal V to the first power line 120. dd , providing a second power signal V to the second power line 130 ss , the first power signal V dd and the second power signal V ss It should be noted that the display panel 100 can be a liquid crystal display panel, an organic light emitting diode display panel, or a quantum dot display panel. The embodiment of the present disclosure does not limit the structure of the display panel, and the display panel can be selected according to actual needs.

[0052] In some embodiments, the display panel 100 may include a display area 101, which may include a plurality of array-distributed light-emitting components, which may be, for example, organic light-emitting diodes (OLEDs), quantum dot light-emitting diodes (QLEDs) or light-emitting diode chips (LEDs).

[0053] The display area 101 of the display panel 100 is provided with a light-emitting component and a pixel driving circuit 50. The pixel driving circuit 50 corresponds to the light-emitting component and is used to drive the light-emitting component to emit light. The pixel driving circuit 50 can be composed of multiple transistors, which can be P-type transistors or N-type transistors.

[0054] Figure 3 FIG. 1 is a schematic diagram of the structure of a pixel driving circuit in an embodiment. Figure 3As shown, the pixel driving circuit may include a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, a seventh transistor T7, and a storage capacitor Cst. The control terminal of the first transistor T1 is coupled to the reset signal terminal Reset, and the first and second electrodes of the first transistor T1 are coupled to the initial signal terminal Vinit and the first node N1, respectively. The control terminal of the second transistor T2 is coupled to the scan signal terminal Gate, and the first and second electrodes of the second transistor T2 are coupled to the first node N1 and the second node N2, respectively. The control terminal of the third transistor T3 is coupled to the first node N1, and the first and second electrodes of the third transistor T3 are coupled to the second node N2 and the third node N3, respectively. The control terminal of the fourth transistor T4 is coupled to the scan signal terminal Gate, and the first and second electrodes of the fourth transistor T4 are coupled to the data signal terminal Data and the third node N3, respectively. The control terminal of the fifth transistor T5 is coupled to the control signal terminal EM, and the first and second electrodes of the fifth transistor T5 are coupled to the first power supply terminal VDD and the third node N3, respectively. A control terminal of the sixth transistor T6 is coupled to the control signal terminal EM, and a first electrode and a second electrode of the sixth transistor T6 are coupled to the second node N2 and the fourth node N4, respectively. A control terminal of the seventh transistor T7 is coupled to the scan signal terminal Gate, and a first electrode and a second electrode of the seventh transistor T7 are coupled to the initial signal terminal Vinit and the fourth node N4, respectively. A first plate and a second plate of the storage capacitor Cst are coupled to the first power supply terminal VDD and the first node N1, respectively. An anode of the light-emitting element EL is coupled to the fourth node N4, and a cathode is coupled to the second power supply terminal VSS.

[0055] The first power supply terminal VDD of each pixel driving circuit is connected to the first power line 120, and the second power supply terminal VSS of each pixel driving circuit is connected to the second power line 130. Thus, the power supply group 200 provides the first power signal V to the first power supply terminal VDD of each pixel driving circuit through the first power line 120. dd and provides a second power signal V to the second power terminal VSS of each pixel driving circuit through the second power line 130. ss , to drive each light-emitting component to emit light.

[0056] It should be noted that the number of the multiple power supply groups 200 is two or more. The multiple power supply groups 200 are configured to switch operations according to preset conditions based on the operating mode of the display device. That is, when the display device is operating, the multiple power supply groups 200 can alternately provide the operating power required by the light-emitting component to the first power line 120 and the second power line 130.

[0057] The display device of the embodiment of the present disclosure is provided with multiple power supply groups 200, and the multiple power supply groups 200 switch their operation, so that when one of the power supply groups 200 is working, the other power supply groups 200 can rest and dissipate heat, thereby reducing the temperature of the area where the power supply groups 200 are located, avoiding the power supply groups 200 from being in a high temperature state for a long time, avoiding accelerated aging caused by excessive local temperature of the display panel, improving the efficiency of the power supply group, and extending the life of the display device.

[0058] For example, the order in which the multiple power supply groups 200 are switched is not limited; as long as the current power supply group 200 stops working, another power supply group 200 can be switched to work. For example, there are three power supply groups 200, namely the first power supply group, the second power supply group, and the third power supply group. After the first power supply group stops working, the second power supply group can be switched to work; after the second power supply group stops working, the third power supply group can be switched to work, or the first power supply group can be switched to work.

[0059] In one embodiment, the plurality of power supply groups are configured to switch to work in sequence according to preset conditions based on the working mode of the display device. Thus, the plurality of power supply groups switch to work in sequence according to a preset order. For example, there are three power supply groups 200, namely the first power supply group, the second power supply group and the third power supply group. After the first power supply group stops working, the second power supply group is switched to work; after the second power supply group stops working, the third power supply group is switched to work; after the third power supply group stops working, the first power supply group is switched to work. In this way, each power supply group can rest and dissipate heat for a longer time, further reducing the temperature of the area where the power supply group 200 is located, improving the efficiency of the power supply group, and extending the life of the display device.

[0060] In one embodiment, the plurality of power supply groups 200 may be distributed at intervals to avoid temperature influences between them.

[0061] For example, the number of power supply groups 200 is two for illustration, and the power supply groups 200 are arranged at intervals, and the distance between the power supply groups 200 can ensure that the temperature of the area adjacent to the power supply groups 200 is not affected. The specific setting position of the power supply group 200 in the display device is not limited here, and can be set according to actual use needs. The two power supply groups 200 switch to work according to preset conditions, that is, only one of the two power supply groups 200 provides an electrical signal to the light-emitting component 110 at the same time, so that the power supply group 200 can take a break to dissipate heat while ensuring the power supply needs of the display panel 100, thereby avoiding the power supply group 200 from working in a high temperature state for a long time.

[0062] Exemplarily, the power supply group 200 includes a first power supply group 200a and a second power supply group 200b, and the symmetry axes of the two are on the same straight line on the printed circuit board 400, and are on the same straight line with the symmetry axis of the display panel 100, so as to ensure that the distance between the first power supply group 200a and the second power supply group 200b and the two sides of the display panel 100 is equal, thereby reducing the unequal signal delay at both ends.

[0063] Exemplarily, the power supply group 200 includes a first power supply group 200a and a second power supply group 200b. The first power supply group 200a leads out the first power line and the second power line from both sides, respectively, and is connected to the VSS and VDD of the display panel through the flexible circuit board 300; the second power supply group 200b leads out the first power line and the second power line from both sides, respectively, and is connected to the VSS and VDD of the display panel through the flexible circuit board 300; this design ensures the voltage stability from the power supply group 200 to the display panel as much as possible and reduces the voltage drop.

[0064] It should be noted that the specific structure of the power supply group 200 can be set according to actual usage requirements and is not limited here. For example, each power supply group 200 can include at least one power module, which can provide the operating power required by the light-emitting component to the first power line and the second power line. For example, the power module can be an electroluminescent chip (ELIC).

[0065] The working mode of the display device 10 corresponds to the power consumption state of the display device 10. For example, the power consumption state of the display device 10 can be determined by the display brightness of the display panel 100. In one embodiment, the display device 10 may include a first power consumption state, a second power consumption state, and a third power consumption state. For example, the first power consumption state may be a high power consumption state, the second power consumption state may be a medium power consumption state, and the third power consumption state may be a low power consumption state. In different power consumption states, the preset conditions for switching between multiple power supply groups may be different. For example, in the third power consumption state, one of the multiple power supply groups can be selected to continue working without the need for multiple power supply groups to switch. The specific power consumption values ​​of high power consumption, medium power consumption, and low power consumption can be set according to demand and are not specifically limited here.

[0066] The preset condition can be a time interval or a preset temperature for switching the power supply groups 200. For example, when the display device 10 is in a first power consumption state, the two power supply groups 200 are switched at a first time interval for operation. When the display device 10 is in a second power consumption state, the two power supply groups 200 are switched at a second time interval for operation. The first time interval and the second time interval are different, that is, the power supply groups 200 switch at different speeds in different power consumption states of the display device 10. By switching the power supply groups 200 at different switching speeds in the corresponding operating mode of the display device 10, the power supply groups 200 can rest and dissipate heat, thereby preventing the power supply groups 200 from operating for a long time and forming a high temperature environment.

[0067] The preset condition for switching the power supply group 200 can be determined by a curve showing the relationship between the temperature rise and time of the power supply group 200. For example, when there are two power supply groups 200, switching between the two power supply groups 200 requires ensuring that the temperature of the power supply groups 200 does not exceed a specified threshold, i.e., the preset condition for limiting the switching is set by temperature.

[0068] In the display device 10 of the embodiment of the present disclosure, multiple power supply groups 200 provide power signals to the light-emitting components through the first power line 120 and the second power line 130. The power supply groups 200 can switch operations according to preset conditions, thereby avoiding a single power supply group 200 working in a high-temperature state for a long time, reducing the aging speed of the display device 10, extending the service life of the display device 10, and improving the efficiency of the power supply group 200, meeting the high-quality needs of customers and enhancing the market competitiveness of the product.

[0069] In some embodiments, the display device 10 further includes a flexible circuit board 300 and a printed circuit board 400, the display panel 100 is connected to the flexible circuit board 300, the flexible circuit board 300 is connected to the printed circuit board 400, a plurality of power supply groups 200 are arranged on the printed circuit board 400 at intervals from each other, each power supply group 200 is connected to the first power line 120 and the second power line 130 through the printed circuit board 400 and the flexible circuit board 300, and the flexible circuit board 300 is configured to bend toward the back side of the display panel 100 so that the printed circuit board 400 is attached to the back side of the display panel 100.

[0070] For example, the display panel 100 may be provided with a binding area, and the flexible circuit board 300 may be bound and connected to the first binding area; the printed circuit board 400 may be provided with a connecting portion, and the other end of the flexible circuit board 300 is connected to the connecting portion. The power supply group 200 is provided on the printed circuit board 400, so that the first power signal V dd and the second power signal V ssThe power supply can be provided to the first power line 120 and the second power line 130 through the printed circuit board 400 and the flexible circuit board 300 respectively.

[0071] The display panel 100 and printed circuit board 400 are connected via multiple flexible circuit boards 300. These flexible circuit boards 300 can be bent toward the back of the display panel 100, allowing the printed circuit boards 400 to adhere to the back of the display panel 100. This approach can narrow the bezel of the display panel 100. The printed circuit boards 400 directly contact the back of the display panel 100, while the power supply assembly 200 closely adheres to the back of the display panel 100. Because the power supply assembly 200 can switch between different operating modes, it avoids prolonged high-temperature operation, preventing accelerated aging of the area of ​​the display panel 100 corresponding to the power supply assembly 200, and thus extending the service life of the display panel.

[0072] In a disclosed embodiment, the plurality of power supply groups 200 are arranged along the width direction of the printed circuit board 400 ( Figure 2 in the vertical direction) or the length direction ( Figure 2 The printed circuit board 400 is connected to the display panel 100 through a plurality of, for example, three, flexible circuit boards 300.

[0073] In one embodiment, Figure 2 As shown, the display panel 100 may include a display area 101 and a frame area 102 located outside the display area 101 . The display panel 100 may further include a gate driving circuit (GOA driving circuit) located in the frame area 102 .

[0074] In one embodiment, the display area 101 of the display panel may include multiple sub-display areas, and the number of sub-display areas may be the same as the number of power supply groups, and the multiple power supply groups correspond one-to-one to the multiple sub-display areas. One power supply group can provide the working power required by the light-emitting components to the corresponding sub-display area. Such a structure uses multiple power supply groups to perform partition control on the display area, and each power supply group can work continuously. Since the number of light-emitting components in the sub-display area supplied by the power supply group is small, the power consumption of each power supply group is reduced, and each power supply group is prevented from working in a high temperature state for a long time, and the corresponding area of ​​the power supply group 200 of the display panel 100 is prevented from accelerating aging, thereby extending the service life of the display panel.

[0075] In one embodiment, each power supply group may include multiple power modules, and the display area 101 may include multiple sub-display areas. The number of sub-display areas may be equal to the number of power modules. The multiple power modules correspond one-to-one with the multiple sub-display areas, and each power module provides the operating power required by the light-emitting components in the corresponding sub-display area. This structure can reduce the power consumption of the power supply group, extend the continuous operation time of each power supply group, and reduce the switching frequency of multiple power supply groups.

[0076] Figure 4 Schematic diagram of a power supply control method in one embodiment of the present disclosure. Another embodiment of the present disclosure provides a power supply control method, which is applied to the display device 10 of any one of the disclosed embodiments in the first aspect, and the method includes steps S10-S20:

[0077] In step S10 , the operating mode of the display device is determined, where the operating mode corresponds to the power consumption state of the display device 10 .

[0078] Exemplarily, the power consumption state of the display device 10 may include a high power consumption state and a medium power consumption state. The operating mode of the display device 10 may include a first operating mode and a second operating mode, the first operating mode corresponding to the high power consumption state and the second operating mode corresponding to the medium power consumption state.

[0079] The power consumption state of the display device 10 can be determined by obtaining the display brightness parameter of the display panel 100. The display brightness is compared with a first threshold value and a second threshold value of the preset display brightness. If the display brightness is less than the first threshold value, the operating mode of the display device is determined to be a low power consumption state; if the display brightness is between the first threshold value and the second threshold value, the operating mode of the display device is determined to be a medium power consumption state; and if the display brightness is greater than the second threshold value, the operating mode of the display device is determined to be a high power consumption state. It should be noted that the power consumption state of the display device 10 can also be set in more ways according to the brightness of the display device, which is not limited here.

[0080] The power consumption state of the display device 10 may also be determined by acquiring output parameters of the power supply group 200 .

[0081] In step S20 , according to the working mode of the display device 10 , the plurality of power supply groups 200 are controlled to switch and operate according to preset conditions to provide electrical signals to the first power line 120 and the second power line 130 .

[0082] The power supply group 200 may provide a voltage signal or a current signal to the first power line 120 and the second power line 130 .

[0083] The power supply control method of the embodiment of the present disclosure controls multiple power supply groups 200 to switch operations according to preset conditions to provide electrical signals to the first power line 120 and the second power line 130 when the display device 10 is in different power consumption states. Under the condition of ensuring the power supply needs of the display panel, the multiple power supply groups 200 can take turns to rest, thereby avoiding the temperature rise in local areas caused by continuous power supply and heat generation of the power supply groups 200 and accelerating aging, which is beneficial to extending the life of the display device.

[0084] For example, the order in which the multiple power supply groups 200 are switched is not limited, as long as the current power supply group 200 stops working, another power supply group 200 can be switched to work.

[0085] In one embodiment, the display device may include multiple temperature measuring units, each corresponding to one of the multiple power supply groups, and the temperature measuring units are configured to detect the temperature at the location of the corresponding power supply group. Controlling the multiple power supply groups to switch operations according to preset conditions may include: when the current power supply group is controlled to stop operating according to the preset conditions, controlling the power supply group corresponding to the temperature measuring unit with the lowest temperature value in the remaining power supply groups to operate.

[0086] Figure 5 FIG. 1 is a schematic diagram of an expanded display device in one embodiment of the present disclosure. Figure 5 As shown, the multiple power supply groups 200 may include a first power supply group 200a, a second power supply group 200b, a third power supply group 200c, and a fourth power supply group 200d, and the four power supply groups 200 are arranged at intervals on the printed circuit board 400. In an actual product, the printed circuit board 400 is placed on the back side of the display panel 100 by bending the flexible circuit board 300, so that the four power supply groups are in direct contact with the back side of the display panel 100. Figure 5 The figure shows the approximate positions of the four power supply groups 200 on the printed circuit board 400, and also shows four temperature test points. After the printed circuit board 400 is bent to the back side of the display panel 100, test point 1, test point 2, test point 3, and test point 4 are respectively located in the areas where the first power supply group 200a, the second power supply group 200b, the third power supply group 200c, and the fourth power supply group 200d are located. Four temperature measuring units are respectively set at test point 1, test point 2, test point 3, and test point 4 to detect the temperature of the areas where the four power supply groups are located. By performing a temperature rise test on the four test points on the display panel when the display panel is working and the second power supply group 200b is working, the temperature values ​​shown in Tables 1 and 2 are obtained through the four temperature measuring units. Figure 6 The results shown.

[0087] Table 1 shows the results of temperature tests on test point 1, test point 2, test point 3, and test point 4 when the second power supply group 200 b is working. Figure 6 The temperature rise test curve of the test point drawn according to Table 1, where A corresponds to the temperature rise curve of test point 1, B corresponds to the temperature rise curve of test point 2, C corresponds to the temperature rise curve of test point 3, and D corresponds to the temperature rise curve of test point 1. Figure 6It can be seen that the display panel 100 is working in a relatively high temperature state. The closer to the second power supply group 200b, the higher the temperature. Since test point 2 is located in the area where the second power supply group 200b is located, the temperature rise in the local area where test point 2 is located is more serious. The farther away from test point 2, the lower the temperature of test point 1, test point 3, and test point 4. Figure 6 As shown, the temperature rises fastest at test point 2 and is also the highest. In comparison, the temperature rises slowest at test point 4 and is the lowest.

[0088] Table 1 Results of temperature tests at test points 1, 2, 3 and 4

[0089]

[0090] When the current power supply group is the second power supply group 200b, the location with the lowest temperature value is the location of test point 4, the temperature measuring unit with the lowest temperature value is the temperature measuring unit of test point 4, and the power supply group corresponding to the temperature measuring unit with the lowest temperature value is the fourth power supply group 200d.

[0091] For example, when the current second power supply group 200b is controlled to stop operating according to preset conditions, the fourth power supply group 200d corresponding to the temperature measuring unit with the lowest temperature value among the remaining power supply groups is controlled to operate. Because the temperature of fourth power supply group 200d is the lowest, when fourth power supply group 200d is controlled to operate, the temperature rise rate of fourth power supply group 200d can be reduced, which also helps the first power supply group 200a and the third power supply group 200c continue to dissipate heat, thereby reducing the overall temperature rise of the display device and extending the life of the display device.

[0092] In one embodiment, controlling multiple power supply groups to switch operations according to preset conditions may include: controlling multiple power supply groups to switch operations in sequence according to preset conditions. Thus, multiple power supply groups switch operations in sequence according to a preset order. For example, there are three power supply groups 200, namely the first power supply group, the second power supply group and the third power supply group. After the first power supply group stops working, the second power supply group is switched to work; after the second power supply group stops working, the third power supply group is switched to work; after the third power supply group stops working, the first power supply group is switched to work. In this way, each power supply group can rest and dissipate heat for a longer time, further reducing the temperature of the area where the power supply group 200 is located, improving the efficiency of the power supply group, and extending the life of the display device.

[0093] In some possible implementations, the display panel may include multiple regions, each of which corresponds to a plurality of power supply groups, with each region being a region where a corresponding power supply group is located. Multiple temperature measurement units correspond to the multiple regions, each of which is configured to detect the temperature of the region where the corresponding power supply group is located.

[0094] Exemplarily, controlling multiple power supply groups to switch operations according to preset conditions may include: when controlling the current power supply group to stop working according to the preset conditions, controlling one of the power supply groups whose temperature difference with the current power supply group is greater than a first temperature difference threshold to work.

[0095] For example, the display panel 100 includes a first area (for example, the area where the first power supply group 200a corresponding to test point 1 is located), a second area (for example, the area where the first power supply group 200a corresponding to test point 2 is located), a third area (for example, the area where the first power supply group 200a corresponding to test point 3 is located) and a fourth area (for example, the area where the first power supply group 200a corresponding to test point 4 is located).

[0096] The current power supply group is second power supply group 200b. After 180 minutes, when second power supply group 200b stops operating, the temperature differences between first power supply group 200a, third power supply group 200c, and fourth power supply group 200d and second power supply group 200b are 29.05°C, 37.55°C, and 44.88°C, respectively. If the first temperature difference threshold is 35°C, when second power supply group 200b stops operating, one of third power supply group 200c and fourth power supply group 200d can be selected to operate.

[0097] Exemplarily, controlling multiple power supply groups to switch operations according to preset conditions may include: when controlling the current power supply group to stop working according to the preset conditions, controlling at least two power supply groups in the remaining power supply groups whose temperature difference is less than a second temperature difference threshold to work simultaneously.

[0098] For example, if the second temperature difference threshold is 7.5°C and the current power supply group is second power supply group 200b, after 180 minutes, second power supply group 200b stops operating. The power supply groups with a temperature difference less than the second temperature difference threshold among first power supply group 200a, third power supply group 200c, and fourth power supply group 200d are third power supply group 200c and fourth power supply group 200d. When second power supply group 200b stops operating, third power supply group 200c and fourth power supply group 200d can be controlled to operate simultaneously to prevent the temperature of third power supply group 200c or fourth power supply group 200d from rising too quickly.

[0099] Exemplarily, controlling multiple power supply groups to switch operations according to preset conditions may include: when controlling the current power supply group to stop working according to the preset conditions, if there are two power supply groups among the remaining power supply groups whose temperature difference is greater than the second temperature difference threshold and less than the first temperature difference threshold, selecting the power supply group with the lower temperature among the two power supply groups to work.

[0100] Exemplarily, the second temperature difference threshold is less than the first temperature difference threshold. For example, when the second temperature difference threshold is 7.5°C and the first temperature difference threshold is 35°C, the temperature difference between the first power supply group 200a and the third power supply group 200c is greater than the second temperature difference threshold and less than the first temperature difference threshold, and the third power supply group 200c can be selected for operation. For example, when the second power supply group 200b stops working, the timing controller can send a command signal "0010" to each power supply group, selecting the third power supply group 200c to start working, and the other three power supply groups are in a resting and non-working state, to ensure that the heating of the power supply group 200 can be effectively reduced.

[0101] In some of the disclosed embodiments, the time for the two power supply groups 200 to switch between working is between two frames. When the two power supply groups 200 switch between working, since the power supply group 200 will first switch one power supply group 200 off and then switch the other power supply group 200 to work, the light-emitting component will be powered off first and then powered on, that is, the light-emitting component will be briefly powered off when the two power supply groups 200 switch. If the power supply group 200 is switched within one frame, the screen display effect will be affected by a brief black screen, thereby affecting the screen display effect of the display device. By setting the time for the switching of the two power supply groups 200 between two frames, the disclosed embodiment can avoid the switching of the power supply group 200 affecting the screen display effect of the display device and improve the user experience.

[0102] In some embodiments, the operating mode includes a first operating mode and a second operating mode, and the preset condition includes a first time interval and a second time interval. When the operating mode of the display device 10 is the first operating mode, the preset condition includes the first time interval; when the operating mode of the display device 10 is the second operating mode, the preset condition includes the second time interval; the power consumption of the first operating mode is greater than the power consumption of the second operating mode; and the first time interval is less than the second time interval.

[0103] The power consumption of the first operating mode is greater than the power consumption of the second operating mode, and the power of the power supply group 200 in the first operating mode is greater than the power of the power supply group 200 in the second operating mode. Therefore, the heat generated per unit time by the power supply group 200 in the first operating mode is greater than the heat generated per unit time by the power supply group 200 in the second operating mode. The first time interval is shorter than the second time interval, and thus, the switching time interval of the power supply group in the first operating mode is shorter than the switching time interval of the power supply group in the second operating mode, so that the continuous operation time of a single power supply group in the first operating mode is shorter than the continuous operation time of the power supply group in the second operating mode.

[0104] In the first working mode, the power supply group 200 generates more heat. By speeding up the switching speed of the power supply group 200, the heat generated by the continuous operation of the power supply group 200 can be reduced, thereby avoiding accelerated aging of local areas.

[0105] In this way, the time interval for switching between multiple power supply groups is inversely proportional to the power consumption of the display device. The greater the power consumption, the shorter the switching time interval, and the shorter the continuous working time of a single power supply group. This is conducive to achieving a similar heat generation each time a single power supply group works continuously, making temperature management of the display device simpler.

[0106] For example, in the first operating mode, the first time interval for switching between the two power supply groups 200 is 1 frame, and in the second operating mode, the second time interval for switching between the two power supply groups 200 is 5 frames. The first time interval and the second time interval for switching between the two power supply groups 200 can be selected according to actual conditions and are not limited here.

[0107] In some of the embodiments, the time for the power supply group to switch is between two frames. The duration of the first time interval is an integer multiple of the frame duration, and the duration of the second time interval is an integer multiple of the frame duration. The duration of the first time interval is set to an integer multiple of the frame duration, so that it can be ensured that in the first working mode, the time for each two power supply groups to switch is between two frames. The duration of the second time interval is set to an integer multiple of the frame duration, so that it can be ensured that in the second working mode, the time for each two power supply groups to switch is between two frames. By setting the duration of the first time interval and the second time interval to an integer multiple of the frame duration, it is possible to avoid a brief black screen phenomenon on the screen after the power supply group 200 switches multiple times, avoid switching the power supply group 200 affecting the screen display effect of the display device, and improve the user experience.

[0108] In some embodiments, the preset conditions include a preset temperature, and multiple power supply groups 200 are controlled to switch operations according to the preset conditions, including: when the temperature of the current power supply group 200 is greater than or equal to the preset temperature, controlling the switching of the next power supply group 200 to operate.

[0109] It should be noted that the preset temperature may be a temperature threshold value obtained from a temperature rise test of the power supply group 200 . Within this temperature threshold range, the temperature rise of the power supply group 200 has a relatively small impact on regional aging of the display device.

[0110] For example, a temperature sensor is provided to obtain the temperature of the power supply group 200. The temperature sensor detects the current temperature of the currently operating power supply group 200. When the temperature of the current power supply group 200 is greater than or equal to a preset temperature, continuing to supply power to the power supply group 200 will accelerate the aging of the local area, and the current power supply group 200 needs to be powered off for a rest. By detecting the preset temperature of the current power supply group 200 and switching the power supply, this method can effectively reduce the heating of the power supply group 200.

[0111] In some possible implementations, controlling multiple power supply groups 200 to switch operations according to preset conditions includes: sending a corresponding instruction signal to each power supply group 200 according to the preset conditions to control the selected power supply group 200 to operate.

[0112] The timing controller (Tcon) can control the multiple power supply groups 200 to switch operations according to preset conditions. The timing controller selects one of the multiple power supply groups 200 to operate by sending corresponding command signals to each power supply group 200.

[0113] For example, the timing controller can 2 C protocol to communicate with multiple power supply groups 200 to control the operation of multiple power supply groups 200. The timing controller communicates with multiple power supply groups 200 using I 2 The C protocol can assign an independent address to each power supply group 200. The command signal can include address information, and the timing controller can send the corresponding address information to each power supply group according to preset conditions during switching. Thus, the timing controller accesses different power supply groups 200 through addressing, so that the accessed power supply group 200 can operate.

[0114] Table 2 Schematic diagram of the working status of the power supply group corresponding to the command signal of the timing controller in the case of two power supply groups

[0115] Command signal Status of power supply group 200a and power supply group 200b 00 Power supply group 200a and power supply group 200b are both resting 01 Power supply group 200a is resting, and power supply group 200b is working. 10 Power supply group 200a is working, and power supply group 200b is resting.

[0116] For example, as shown in Table 2, when there are two power supply groups 200, the timing controller can send an instruction signal "00" to each power supply group. At this time, both power supply groups 200 are not selected, and both power supply groups 200 are in a resting and non-working state; the timing controller can send an instruction signal "01" to each power supply group. At this time, the second power supply group 200b is selected to start working, and the first power supply group 200a is in a resting and non-working state; the timing controller can send an instruction signal "10" to each power supply group. At this time, the first power supply group 200a is selected to start working, and the second power supply group 200b is in a resting and non-working state.

[0117] In one embodiment, multiple power supply groups 200 may also be provided with identification information, and the timing controller may communicate with each power supply group 200 via wireless signals. By determining the operating mode of the display device, the timing controller generates a command signal corresponding to the identification information according to preset conditions, and sends the command signal to the power supply group 200 corresponding to the identification information to control the operation of the selected power supply group. For example, in the case where there are two power supply groups 200, the timing controller may send a command signal "0" to both power supply groups. At this time, both power supply groups 200 are not selected and both power supply groups 200 are in a resting and non-working state; the timing controller may send a command signal "0" to the first power supply group 200a and a command signal "1" to the second power supply group 200b. At this time, the second power supply group 200b is selected to start working and the first power supply group 200a is in a resting and non-working state; the timing controller may send a command signal "1" to the first power supply group 200a and a command signal "0" to the second power supply group 200b. At this time, the first power supply group 200a is selected to start working and the second power supply group 200b is in a resting and non-working state. This enables switching between multiple power supply groups.

[0118] In different working modes, the timing controller controls the interval time of switching the power supply group by controlling the interval time of sending the command signal.

[0119] In some disclosed embodiments, the operating mode includes a third operating mode, and the method further includes: when the operating mode of the display device 10 is the third operating mode, selecting one of the multiple power supply groups 200 to operate.

[0120] For example, in the third working mode, the display device 10 is in a low power consumption state, and the heat generated by the power supply group 200 causes a smaller temperature rise in the local area, which has a smaller impact on the local temperature rise and aging of the display device 10. Therefore, in the third working mode, one power supply group 200 can be selected for power supply. Not switching the power supply group 200 at this time can avoid affecting the display effect of the display device under low power consumption conditions.

[0121] In related technologies, when the display screen enters a specific scene or image function, the attention or importance of part of the display information of the display panel can be ignored, but the overall display brightness of the display panel remains consistent when displaying the screen. The display brightness depends on the amount of current in the pixel unit, which makes the power consumption of the display device too large, thereby affecting the heat generation of the power supply group 200.

[0122] In some of the disclosed embodiments, the method further includes: determining, based on the received original image data, that the image to be displayed includes main image data and sub-image data; processing the sub-image data using a current limiting factor to obtain processed sub-image data; and controlling the display panel 100 to display the main image data and the processed sub-image data.

[0123] Exemplarily, the image corresponding to the secondary image data may be an image of low attention or low importance.

[0124] Figure 7A is a schematic diagram of a display panel displaying an image in an image scene, Figure 7B is a schematic diagram of a display panel displaying an image in another imaging scenario. Figure 7C A schematic diagram of a display panel displaying an image in another imaging scenario.

[0125] like Figure 7A and Figure 7B In the image scene shown, area B in the scene is usually a web page, advertisement, etc. Figure 7C Area C in the image is not the focus of human eyes. Figure 7A 、 Figure 7B and Figure 7C Region A in the image is the focus of human eye. In normal display, the brightness of regions B and C is consistent with that of region A. It is understandable that for OLED light-emitting components, the brightness depends on the current flowing through the light-emitting components, and the magnitude of the current is related to the pixel grayscale value. The larger the grayscale value, the greater the current required and the greater the power consumption. For image scenes, excessive display brightness of regions B and C will cause power loss. Figure 7A and Figure 7B In the scenario shown, the display brightness of area B can be greatly reduced. Figure 7C In the scenario shown, the display brightness of area C can be appropriately reduced, and the degree of reduction can be adaptively switched according to different usage scenarios.

[0126] For example, in Figure 7A 、 Figure 7B or Figure 7C In the illustrated scene, the primary image data corresponds to the image of region A, and the secondary image data corresponds to the image of region B or region C. In the original image data, the display brightness of region B and region A is consistent, and the display brightness of region C and region A is consistent. Because region B or region C is less noticeable to the human eye, the display brightness of region B can be reduced. Region A corresponds to the primary image data, and region B or region C corresponds to the secondary image data.

[0127] The secondary image data can be processed using a current limiting factor. For example, the current limiting factor can range from 0 to 1. The brightness value corresponding to the secondary image data can be multiplied by the current limiting factor to obtain the processed secondary image data. Consequently, when the display panel displays an image based on the primary image data and the processed primary image data, the display brightness of region A remains unaffected, while the display brightness of regions B or C is reduced, thereby reducing the power consumption of the display device.

[0128] It should be noted that the specific value of the current limiting factor is not limited here, and different current limiting factors can be set according to actual usage requirements to meet different usage requirements. Figure 7A 、 Figure 7B and Figure 7C In the scene shown, the current limiting factor adopted by region B is smaller than the current limiting factor adopted by region C. Therefore, in the displayed image, the brightness value of region B is lower, and the brightness value of region C is slightly larger.

[0129] For example, the display device may be provided with a current limiting factor gear button, and the user may adjust the display brightness of the display area corresponding to the secondary image data as needed by adjusting the current limiting factor gear button to meet different needs of the user.

[0130] exist Figure 7A In the scene shown, the display area corresponding to the secondary image data is located above and below the display area corresponding to the primary image data. Figure 7B and Figure 7C In the illustrated scenario, the display area corresponding to the secondary image data is located to the left and right of the display area corresponding to the primary image data. It will be appreciated that, in actual embodiments, the display area corresponding to the secondary image data is not limited to the upper and lower, or left and right, areas corresponding to the display area corresponding to the primary image data; the display areas corresponding to the secondary image data and the primary image data can be set as needed.

[0131] After determining the secondary image data based on the received original image data, the secondary image data is processed using a current limiting factor, so that the display brightness of the processed secondary image data is lower than the display brightness of the main image data, thereby reducing the display brightness of the display area corresponding to the secondary image data of the display device, reducing the power consumption of the power supply group 200, and reducing the heat generation of the power supply group 200 to a certain extent.

[0132] Exemplarily, the display panel 100 includes a gate driver chip (Source IC) and a pixel driver circuit. Based on the processed secondary image data, the gate driver chip provides a processed data signal to the display area corresponding to the secondary image data. The processed data signal, through the pixel driver circuit, drives the corresponding light-emitting component to emit light, thereby reducing the display brightness of the display area corresponding to the secondary image data.

[0133] The pixel driving circuit can be used Figure 5 The 7T1C circuit shown in the figure reduces the display brightness of the display area corresponding to the secondary image data by means of the gate driver chip and the pixel driver circuit in conjunction with the data signal, thereby reducing the current of the power supply group 200 and ultimately achieving the purpose of reducing the heat generation of the power supply group.

[0134] It should be noted that the various embodiments of the power supply control method provided in the embodiments of the present disclosure can also be implemented in the form of a program product, which includes program code. When the program product is run on a computer, the program code is used to enable the computer to execute the steps of the power supply control method according to the various exemplary embodiments of the present disclosure.

[0135] It should be noted that the power supply control method embodiments of the present disclosure can be provided as a method, system, or computer program product. Therefore, the power supply control method of the present disclosure can take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure can take the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, optical storage, etc.) containing computer program code.

[0136] The present disclosure is described with reference to flowcharts and / or block diagrams of methods, devices (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the process in the flowchart and / or block diagram. Figure 1 a process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0137] These computer program instructions may also be stored in a computer readable memory that can direct a computer or other programmable data processing device to work in a specific manner, so that the instructions stored in the computer readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 a process or multiple processes and / or boxes Figure 1 These computer program instructions can also be loaded onto a computer or other programmable data processing device, so that a series of operation steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the process. Figure 1 a process or multiple processes and / or boxes Figure 1A step that specifies a function in one or more boxes.

[0138] As a third aspect of the embodiments of the present disclosure, the embodiments of the present disclosure provide a power supply control device, such as Figure 8 As shown, Figure 8 This is a structural block diagram of a power supply control device in one embodiment of the present disclosure. The power supply control device is applied to a display device in any embodiment disclosed herein. The power supply control device 20 includes:

[0139] A mode determination module 201 is configured to determine an operating mode of the display device 10 , where the operating mode corresponds to a power consumption state of the display device 10 ;

[0140] The control module 202 is configured to control the plurality of power supply groups 200 to switch operations according to preset conditions based on the operating mode of the display device 10 , so as to provide electrical signals to the first power line 120 and the second power line 130 .

[0141] The power supply control device provided in the embodiment of the present disclosure can be used for a display device. The working mode of the display device is determined by the mode determination module 201, and multiple power supply groups 200 are controlled to switch through the control module, thereby avoiding the power supply group 200 from continuously working to generate heat to accelerate the aging of local areas, extending the service life of the display device, stabilizing the efficiency of the power supply group, and meeting the high-quality needs of customers.

[0142] As a fourth aspect of the embodiments of the present disclosure, another embodiment of the present disclosure provides a display device, including the display device 10 of any embodiment of the present disclosure and the power supply control device 20 of an embodiment of the present disclosure.

[0143] Figure 9 FIG. 1 is a structural block diagram of a control portion of a display device according to an embodiment of the present disclosure. For example, Figure 9 As shown, the mode determination module 201 may include a main control chip (AP), and the control module 201 may include a timing controller. The multiple power supply groups may include a power supply group 200a and a power supply group 200b. The mode determination module 201 is connected to the control module 201 for communication. The control module 201 communicates with the multiple power supply groups via I 2 Multiple power supply groups and the control module 202 may be provided on a printed circuit board 400 .

[0144] The display device of the embodiment of the present disclosure includes a display device and a power supply control device of the embodiment of the present disclosure. The power supply control device can be used to switch the power supply group to work, thereby avoiding a single power supply group working in a high temperature state for a long time. It can solve the accelerated aging of local components of the display panel, extend the service life of the display device, improve the efficiency of the power supply group, meet the high-quality needs of customers, and enhance the market competitiveness of the product.

[0145] The display devices and display apparatuses of the embodiments of the present disclosure can be any product or component with display and touch functions, such as smart phones, wearable smart watches, smart glasses, tablet computers, televisions, monitors, laptop computers, digital photo frames, navigation systems, car displays, e-books, biometric devices such as smart skin devices, soft robots and biomedical devices.

[0146] Other components of the display device and display apparatus of the above embodiment can adopt various technical solutions known to ordinary technicians in this field now and in the future, and will not be described in detail here.

[0147] In the description of this specification, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present disclosure.

[0148] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the present disclosure, "plurality" means two or more, unless otherwise specifically defined.

[0149] In this disclosure, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections, electrical connections, or communication; direct connections or indirect connections through an intermediate medium; and internal connections between two components or interactions between two components. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0150] In the present disclosure, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0151] The disclosure above provides many different embodiments or examples for implementing different structures of the present disclosure. In order to simplify the present disclosure, the components and settings of specific examples are described above. Of course, these are merely examples and are not intended to limit the present disclosure. In addition, the present disclosure may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0152] The above are only specific embodiments of the present disclosure, but the scope of protection of the present disclosure is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this disclosure, and such modifications or substitutions should be included in the scope of protection of the present disclosure. Therefore, the scope of protection of the present disclosure should be based on the scope of protection of the claims.

Claims

1. A display device, characterized in that: include: The display panel includes a plurality of light-emitting components, a first power line and a second power line, wherein the first power line and the second power line are both coupled to the light-emitting components; a plurality of power supply groups, each comprising at least one power module, each of the power supply groups being connected to the first power line and the second power line, the plurality of power supply groups being configured to switch operations according to preset conditions based on an operating mode of the display device to provide the first power line and the second power line with operating power required by the light-emitting component; The display device also includes a flexible circuit board and a printed circuit board. The display panel is connected to the flexible circuit board, and the flexible circuit board is connected to the printed circuit board. Multiple power supply groups are arranged on the printed circuit board at intervals. Each power supply group is connected to the first power line and the second power line through the printed circuit board and the flexible circuit board. The flexible circuit board is configured to bend toward the back side of the display panel so that the printed circuit board is attached to the back side of the display panel.

2. The display device according to claim 1, wherein The light emitting component includes an organic light emitting diode.

3. A power supply control method, characterized in that: Applied to the display device according to claim 1 or 2, the method comprises: determining an operating mode of the display device, the operating mode corresponding to a power consumption state of the display device; According to the working mode of the display device, a plurality of power supply groups are controlled to switch and work according to preset conditions to provide electrical signals to the first power line and the second power line.

4. The method according to claim 3, characterized in that The power supply group switches between two frames.

5. The method according to claim 3, characterized in that The working mode includes a first working mode and a second working mode, and the preset condition includes a first time interval and a second time interval; When the operating mode of the display device is the first operating mode, the preset condition includes a first time interval; when the operating mode of the display device is the second operating mode, the preset condition includes a second time interval; The power consumption of the first working mode is greater than the power consumption of the second working mode; and the first time interval is smaller than the second time interval.

6. The method according to claim 4 or 5, characterized in that The preset condition includes a first time interval and a second time interval, wherein the first time interval is an integer multiple of the frame duration, and the second time interval is an integer multiple of the frame duration.

7. The method according to claim 3, characterized in that The preset condition includes a preset temperature, and controlling the plurality of power supply groups to switch operations according to the preset condition includes: When the temperature of the current power supply group is greater than or equal to the preset temperature, control is performed to switch the next power supply group to operate.

8. The method according to claim 3, characterized in that The controlling of the plurality of power supply groups to switch operations according to preset conditions includes: A corresponding command signal is sent to each of the power supply groups according to the preset conditions to control the operation of the selected power supply group.

9. The method according to claim 3, characterized in that The operating mode includes a third operating mode, and the method further includes: When the operation mode of the display device is the third operation mode, one of the plurality of power supply groups is selected to operate.

10. The method according to claim 3, characterized in that The method further comprises: Determining, based on the received original image data, that the image to be displayed includes main image data and sub-image data; Processing the secondary image data using a current limiting factor to obtain processed secondary image data; The display panel is controlled to display the main image data and the processed sub-image data.

11. A power supply control device, characterized in that: Applied to the display device according to claim 1 or 2, the power supply control device includes: a mode determination module, configured to determine an operating mode of the display device, wherein the operating mode corresponds to a power consumption state of the display device; The control module is used to control the plurality of power supply groups to switch and operate according to preset conditions according to the working mode of the display device, so as to provide electrical signals to the first power line and the second power line.

12. A display device, characterized in that: The display device comprises the display device according to claim 1 or 2, and further comprises the power supply control device according to claim 11.

Images