Display module, display device and control method of display module

Abstract

The application discloses a display module, a display device and a control method of the display module, and belongs to the technical field of display panels. The display module comprises a temperature sensor, a terminal module, a driving module and a display panel. The display panel comprises a gate driving circuit. The temperature sensor is connected with the terminal module and is used for collecting the temperature of the display panel in real time. The terminal module is connected with the driving module and is used for determining the first clock signal frequency corresponding to the temperature in the holding frame stage of the display panel and providing the first clock signal frequency to the driving module. The driving module is connected with the gate driving circuit and is used for providing the clock signal to the gate driving circuit according to the first clock signal frequency. The application can reduce the power consumption of the display module while ensuring the display effect.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of display panels, and particularly relates to a display module, a display device, and a control method of the display module. BACKGROUND

[0002] In order to reduce display power consumption, the clock signal frequency of part of the gate driving circuit is reduced in the holding frame stage of the display panel. In the case of abnormal ambient temperature, the reduction of the clock signal frequency can easily cause the output signal of this part of the gate driving circuit to be abnormally pulled high, and further cause the display area of the display panel to appear as a bright band. Long-time display of the bright band can easily cause irreversible purple lines to appear at the position of the bright band, affecting the display effect. SUMMARY

[0003] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a display module, a display device, and a control method of the display module, which can reduce the power consumption of the display module while ensuring the display effect.

[0004] In a first aspect, the present application provides a display module, comprising a temperature sensor, a terminal module, a driving module, and a display panel, wherein the display panel comprises a gate driving circuit;

[0005] The temperature sensor is connected with the terminal module, and is configured to collect the temperature of the display panel in real time.

[0006] The terminal module is connected with the driving module, and is configured to determine a first clock signal frequency corresponding to the temperature in the holding frame stage of the display panel, and provide the first clock signal frequency to the driving module.

[0007] The driving module is connected with the gate driving circuit, and is configured to provide a clock signal to the gate driving circuit according to the first clock signal frequency.

[0008] According to the display module provided by the embodiments of the present application, the temperature of the display panel is collected in real time, so as to determine the first clock signal frequency corresponding to the temperature of the display panel in the holding frame stage of the display panel, and provide a clock signal to the gate driving circuit according to the first clock signal frequency, thereby avoiding the display abnormality problem caused by the excessively low frequency of the clock signal when the temperature of the display panel is abnormal, and ensuring the display effect while reducing the power consumption of the display module.

[0009] According to one embodiment of the present application, the temperature and the first clock signal frequency have a positive correlation.

[0010] According to an embodiment of the present application, the terminal module is further configured to determine a target temperature interval to which the temperature belongs from a plurality of preset temperature intervals during a hold frame stage of the display panel, determine a target clock signal frequency corresponding to the target temperature interval according to a preset correspondence between temperature intervals and clock signal frequencies, and provide the target clock signal frequency as the first clock signal frequency.

[0011] According to an embodiment of the present application, the terminal module is further configured to provide a default second clock signal frequency to the driving module during a refresh frame stage of the display panel, the second clock signal frequency being greater than or equal to the first clock signal frequency.

[0012] The driving module is further configured to provide the clock signal to the gate drive circuit according to the second clock signal frequency.

[0013] According to an embodiment of the present application, the display module further comprises a temperature sensing layer on the display panel, and the temperature sensor is located in the temperature sensing layer.

[0014] According to an embodiment of the present application, the temperature sensor is integrated in the driving module.

[0015] According to an embodiment of the present application, the display panel further comprises a pixel circuit.

[0016] The gate drive circuit is connected to the pixel circuit and configured to provide a reset signal or a scan signal to the pixel circuit according to the clock signal.

[0017] According to an embodiment of the present application, the pixel circuit comprises an N-type transistor, and an output end of the gate drive circuit is connected to a control end of the N-type transistor.

[0018] In a second aspect, the present application provides a display device, which comprises the display panel.

[0019] According to the display device provided by the embodiments of the present application, the temperature of the display panel is collected in real time, so that a first clock signal frequency corresponding to the temperature of the display panel is determined during a hold frame stage of the display panel, and a clock signal is provided to the gate drive circuit according to the first clock signal frequency, thereby avoiding display abnormality caused by too low frequency of the clock signal when the temperature of the display panel is abnormal, and ensuring display effect while reducing power consumption of the display module.

[0020] In a third aspect, the present application provides a control method of a display module, the display module comprising a display panel, and the display panel comprising a gate drive circuit, the method comprising:

[0021] collecting a temperature of the display panel in real time;

[0022] In the holding frame stage of the display panel, a first clock signal frequency corresponding to the temperature is determined, and the temperature is in a positive correlation with the first clock signal frequency.

[0023] According to the first clock signal frequency, a clock signal is provided to the gate drive circuit.

[0024] According to the control method of the display module provided by the embodiment of the present application, the temperature of the display panel is collected in real time, so as to determine the first clock signal frequency corresponding to the temperature of the display panel in the holding frame stage of the display panel, and provide the clock signal to the gate drive circuit according to the first clock signal frequency, so as to avoid the display abnormal problem caused by the too low frequency of the clock signal when the temperature of the display panel is abnormal, thereby reducing the power consumption of the display module while ensuring the display effect.

[0025] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0026] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0027] Figure 1 is a structural schematic diagram of a display module provided by an embodiment of the present application;

[0028] Figure 2 is a structural schematic diagram of a display panel and a temperature sensing layer in a display module provided by an embodiment of the present application;

[0029] Figure 3 is a structural schematic diagram of a pixel circuit in a display module provided by an embodiment of the present application;

[0030] Figure 4 is a signal timing diagram of a display module provided by an embodiment of the present application;

[0031] Figure 5 is a flowchart of a control method of a display module provided by an embodiment of the present application. DETAILED DESCRIPTION

[0032] The embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0033] Reference is made below to Figures 1-5The display module, the display device and the control method of the display module are provided.

[0034] Figure 1 A structural schematic diagram of the display module provided by the embodiments of the present application is shown in the figure. Figure 1 As shown in the figure, the display module provided by the embodiments of the present application includes a temperature sensor 1, a terminal module 2, a driving module 3 and a display panel 4, and the display panel 4 includes a gate driving circuit 41. The temperature sensor 1 is connected with the terminal module 2, the terminal module 2 is connected with the driving module 3, and the driving module 3 is connected with the gate driving circuit 41 in the display panel 4. Among them, the display panel 4 can be an LTPO (Low Temperature Polycrystalline Oxide) display panel.

[0035] The temperature sensor 1 is used to collect the temperature of the display panel 4 in real time. The temperature sensor 1 can collect the temperature of the display panel 4 in real time by using whole-surface, local or several-point difference collection methods. After collecting the temperature of the display panel 4 in real time, the temperature sensor 1 provides the temperature of the display panel 4 to the terminal module 2.

[0036] The terminal module 2 is used to determine the first clock signal frequency corresponding to the temperature during the holding frame stage of the display panel 4, and provide the first clock signal frequency to the driving module 3. Among them, the terminal module 2 can be an AP (Application Processor).

[0037] The display cycle of the display panel 4 can include a refresh frame stage and a holding frame stage. The refresh frame stage can include one refresh frame, and the holding frame stage can include multiple holding frames. The refresh frame stage refreshes the display picture of the display panel 4, and the holding frame stage does not refresh the display picture of the display panel 4. During the holding frame stage of the display panel 4, the terminal module 2 adjusts the first clock signal frequency in real time according to the temperature of the display panel 4 collected by the temperature sensor 1 in real time, and transmits the first clock signal frequency adjusted in real time to the driving module 3. Among them, the temperature of the display panel 4 and the first clock signal frequency are positively correlated, that is, the higher the temperature of the display panel 4, the greater the first clock signal frequency.

[0038] The driving module 3 is used to provide the clock signal to the gate driving circuit 41 according to the first clock signal frequency. Among them, the driving module 3 can be a DIC (Driver IC).

[0039] The clock signal frequency refers to the high-low level conversion frequency of the clock signal. When the clock signal frequency is low, the high-low level conversion frequency of the clock signal is low, and the duration of the high level and the low level of the clock signal is long; when the clock signal frequency is high, the high-low level conversion frequency of the clock signal is high, and the duration of the high level and the low level of the clock signal is short. The driving module 3 provides the clock signal to the gate driving circuit 41 after obtaining the first clock signal frequency provided by the terminal module 2, and the frequency of the clock signal is the first clock signal frequency.

[0040] In the holding frame stage of the display panel 4, the first clock signal frequency corresponding to the temperature of the display panel 4 is determined according to the temperature of the display panel 4, and the clock signal is provided to the gate driving circuit according to the first clock signal frequency, so that the first clock signal frequency can be adjusted in time when the temperature of the display panel 4 changes, and the clock signal provided to the gate driving circuit is adjusted in time, thereby avoiding the display abnormality problem caused by the excessively low frequency of the clock signal provided to the gate driving circuit when the temperature of the display panel is abnormal, so as to reduce the power consumption of the display module while ensuring the display effect.

[0041] In some embodiments, the temperature sensor 1 can be located on the display panel 4. As shown in Figure 2 The display module can further include a temperature sensing layer 10, and the temperature sensor 1 is located in the temperature sensing layer 10. In some embodiments, the display module can further include a temperature sensing PAD (not shown in the figure), and the temperature sensor 1 is connected to the temperature sensing PAD through a first wire, and the temperature sensing PAD is connected to the terminal module 2 through a second wire, so that the temperature sensor 1 is connected to the terminal module 2. After the temperature sensor 1 collects the temperature of the display panel 4, the temperature sensor 1 transmits the temperature of the display panel 4 to the temperature sensing PAD through the first wire, and the temperature sensing PAD transmits the temperature of the display panel 4 to the terminal module 2 through the second wire. In this embodiment, the temperature sensor 1 is arranged on the display panel 4 to detect the temperature of the display panel 4, thereby improving the accuracy of temperature detection of the display panel 4.

[0042] In some embodiments, the temperature sensor 1 can be integrated in the driving module 3, that is, the temperature sensor 1 can be a temperature sensor provided in the driving module 3. After the temperature sensor 1 in the driving light module 3 collects the temperature of the display panel 4, the temperature of the display panel 4 is written into a register. The terminal module 2 obtains the temperature of the display panel 4 by reading the data in the register. In this embodiment, the temperature sensor provided in the driving module 3 is used for temperature detection of the display panel, and no additional temperature sensor is needed, thereby reducing the cost of the display module.

[0043] In some embodiments, the terminal module 2 is further configured to determine a target temperature interval to which the temperature belongs from the plurality of preset temperature intervals during the holding frame stage of the display panel 4, determine a target clock signal frequency corresponding to the target temperature interval according to a preset correspondence between temperature intervals and clock signal frequencies, and provide the target clock signal frequency as the first clock signal frequency.

[0044] In order to reduce the adjustment frequency of the first clock signal frequency, the terminal module 2 can preset a plurality of temperature intervals, which cover all temperatures that the display panel can reach. Each temperature interval is correspondingly provided with a clock signal frequency, the clock signal frequencies corresponding to different temperature intervals are different, and the higher the temperature in the temperature interval, the greater the clock signal frequency corresponding to the temperature interval.

[0045] The terminal module 2 can also preset a default clock signal frequency (such as a third clock signal frequency) for the holding frame stage and a default clock signal frequency (such as a second clock signal frequency) for the refresh frame stage, and the second clock signal frequency is greater than the third clock signal frequency, such as the third clock signal frequency being 1 / 32 of the second clock signal frequency. In this embodiment, the clock signal frequency corresponding to the temperature interval with the lowest temperature can be the third clock signal frequency, the clock signal frequency corresponding to the temperature interval with the highest temperature can be the second clock signal frequency, and the clock signal frequencies corresponding to other temperature intervals can be between the second clock signal frequency and the third clock signal frequency.

[0046] When the display panel 4 is switched from the refresh stage to the holding frame stage, the terminal module 2 obtains the temperature of the display panel 4, determines a target temperature interval to which the temperature belongs from the plurality of temperature intervals, and provides the target clock signal frequency corresponding to the target temperature interval as the first clock signal frequency to the driving module 3. During the holding frame stage of the display panel 4, if the temperature of the display panel 4 changes, it is determined whether the target temperature interval to which the temperature belongs changes. If it does not change, the first clock signal frequency is not adjusted, and the first clock signal frequency is continuously provided to the driving module 3; if it changes, the target temperature interval is determined again, the clock signal frequency corresponding to the target temperature interval is determined again, and the re-determined clock signal frequency is provided as the first clock signal frequency to the driving module 3.

[0047] In some embodiments, the terminal module 2 is further configured to provide a default third clock signal frequency to the driving module 3 when the display panel 4 is switched from the refresh frame stage to the holding frame stage. The driving module 3 is further configured to provide a clock signal to the gate driving circuit 41 according to the third clock signal frequency. The terminal module 2 is further configured to determine a first clock signal frequency corresponding to the temperature of the display panel 4 and provide the first clock signal frequency to the driving module 3 when the temperature of the display panel 4 is detected to be greater than a preset temperature threshold during the holding frame stage of the display panel 4, the first clock signal frequency being greater than the third clock signal frequency.

[0048] The terminal module 2 can preset a default clock signal frequency (e.g., the third clock signal frequency) for the holding frame stage and a default clock signal frequency (e.g., the second clock signal frequency) for the refresh frame stage, the second clock signal frequency being greater than the third clock signal frequency. The terminal module 2 can also preset a temperature threshold, which can be a temperature threshold point at which the display panel 4 exhibits display abnormalities when the clock signal frequency is the third clock signal frequency.

[0049] In the present embodiment, when the display panel 4 is switched from the refresh frame stage to the holding frame stage, the terminal module 2 first acquires a default third clock signal frequency and provides the third clock signal frequency to the driving module 3. The driving module 3 provides a clock signal to the gate driving circuit 41 according to the third clock signal frequency, i.e., the high-low level conversion frequency of the clock signal is the third clock signal frequency. During the holding frame stage of the display panel 4, the terminal module 2 detects whether the temperature of the display panel 4 reaches a preset temperature threshold in real time. If not, the terminal module 2 still provides the third clock signal frequency to the driving module 3. If yes, the terminal module 2 determines a first clock signal frequency corresponding to the temperature of the display panel 4 and adjusts the third clock signal frequency to the first clock signal frequency and provides the first clock signal frequency to the driving module 3. The driving module 3 provides a clock signal to the gate driving circuit 41 according to the first clock signal frequency, i.e., the high-low level conversion frequency of the clock signal is the first clock signal frequency. During the holding frame stage of the display panel 4, the terminal module 2 continues to detect the temperature of the display panel 4. When the terminal module 2 detects that the temperature of the display panel 4 is lower than the preset temperature threshold, the terminal module 2 adjusts the first clock signal frequency to the third clock signal frequency again and provides the third clock signal frequency to the driving module 3.

[0050] In some embodiments, the terminal module 2 is further configured to provide a default second clock signal frequency to the driving module 3 during the refresh frame stage of the display panel 4, the second clock signal frequency being greater than or equal to the first clock signal frequency. The driving module 3 is further configured to provide a clock signal to the gate driving circuit 41 according to the second clock signal frequency, so as to ensure that the display panel 4 performs normal refresh display during the refresh frame stage.

[0051] As Figure 1As shown, the display panel 4 also includes a pixel circuit 42, and a gate driving circuit 41 is connected to the pixel circuit 42. In some embodiments, the display panel 4 may include at least one gate driving circuit 41, each gate driving circuit 41 may include multiple shift registers (not shown in the figure), and the display panel 4 may also include multiple rows of pixel circuits, with each of the multiple shift registers in each gate driving circuit 41 corresponding to one of the multiple rows of pixel circuits.

[0052] The gate driving circuit 41 is used to provide a reset signal or a scan signal to the pixel circuit 42 according to the clock signal. That is, in this embodiment, the gate driving circuit 41 is a gate driving circuit that provides a reset signal or a scan signal to the pixel circuit 42. Each shift register in the gate driving circuit 41 provides a reset signal or a scan signal to the corresponding row pixel circuit.

[0053] In some embodiments, the pixel circuit 42 includes an N-type transistor, and the output terminal of the gate driving circuit 41 is connected to the control terminal of the N-type transistor. That is, in this embodiment, the gate driving circuit 41 is a gate driving circuit connected to the control terminal of the N-type transistor in the pixel circuit 42. The pixel circuit 42 can be a 7T1C circuit, an 8T1C circuit, or other types of circuits, which are not specifically limited here.

[0054] The following detailed explanation uses the 42-pixel circuit as an example of a 7T1C circuit.

[0055] like Figure 3 As shown, the pixel circuit 42 includes a 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, a capacitor C1, and a light-emitting element D.

[0056] The control end of the first transistor T1 is connected with the first reset signal end Reset_N, the input end of the first transistor T1 is connected with the first initialization signal end Vinit1, and the output end of the first transistor T1 is connected with the first node N1. The control end of the second transistor T2 is connected with the first scan end Gate_N, the input end of the second transistor T2 is connected with the first node N1, and the output end of the second transistor T2 is connected with the third node N3. The control end of the third transistor T3 is connected with the first node N1, the input end of the third transistor T3 is connected with the second node N2, and the output end of the third transistor T3 is connected with the third node N3. The control end of the fourth transistor T4 is connected with the second scan end Gate_P, the input end of the fourth transistor T4 is connected with the data signal end Vdata, and the output end of the fourth transistor T4 is connected with the second node N2. The control end of the fifth transistor T5 is connected with the light-emitting signal end EM, the input end of the fifth transistor T5 is connected with the first voltage signal end ELVDD, and the output end of the fifth transistor T5 is connected with the second node N2. The control end of the sixth transistor T6 is connected with the light-emitting signal end EM, the input end of the sixth transistor T6 is connected with the third node N3, the output end of the sixth transistor T6 is connected with the anode of the light-emitting element D, and the cathode of the light-emitting element D is connected with the second voltage signal end ELVSS. The control end of the seventh transistor T7 is connected with the second reset signal end Reset_P, the input end of the seventh transistor T7 is connected with the second initialization signal end Vinit2, and the output end of the seventh transistor T7 is connected with the anode of the light-emitting element D. One end of the capacitor C1 is connected with the first voltage signal end ELVDD, and the other end of the capacitor C1 is connected with the first node N1.

[0057] In the embodiment, the first transistor T1 and the second transistor T2 are N-type transistors, and the third transistor T3, the fourth transistor T4, the fifth transistor T5, the sixth transistor T6 and the seventh transistor T7 are P-type transistors.

[0058] The display panel 4 in the embodiment can include two gate driving circuits 41, i.e., a first gate driving circuit and a second gate driving circuit. The output end of the first gate driving circuit is connected with the first reset signal end Reset_N, i.e., the first gate driving circuit is connected with the control end of the first transistor T1, for providing the first reset signal to the control end of the first transistor T1. The output end of the second gate driving circuit is connected with the first scan end Gate_N, i.e., the output end of the second gate driving circuit is connected with the control end of the second transistor T2, for providing the first scan signal to the control end of the second transistor T2. In the embodiment, when the terminal module 2 provides the first clock signal frequency to the driving module 3, the driving module 3 provides the clock signal to the first gate driving circuit and the second gate driving circuit according to the first clock signal frequency. It can be understood that the display panel 4 can also include other types of gate driving circuits, for providing other types of signals to the pixel circuit.

[0059] In combination Figure 4 As shown in FIG. 1, the display period of the display panel 4 can include a refresh frame stage and a holding frame stage. The refresh frame stage can include 1 refresh frame (1Frame), and the holding frame stage can include 11 holding frames (11Frame). In the refresh frame stage t10 of the display panel, the signal frequency of the clock signal NCK / NCB provided to the gate drive circuit 41 is the default frequency F1.

[0060] In the holding frame stage t20 of the display panel, the signal frequency of the clock signal NCK / NCB provided to the gate drive circuit 41 in the related art is a fixed frequency F2 (F2 is less than F1) to reduce the power consumption of the display panel 4. However, due to the low frequency F2, the high level of the clock signal NCK / NCB is lengthened, and when the temperature of the display panel 4 is abnormal, the display panel 4 has a characteristic deviation, the first reset signal output by the gate drive circuit 41 to the first transistor T1 or the first scan signal output by the gate drive circuit 41 to the second transistor T2 is abnormally pulled up due to the coupling with the high level of the clock signal NCK / NCB, resulting in display abnormality of the display panel.

[0061] In the holding frame stage t20 of the display panel, the signal frequency of the clock signal NCK / NCB provided to the gate drive circuit 41 in the related art is a fixed frequency F2 (F2 is less than F1) to reduce the power consumption of the display panel 4. However, due to the low frequency F2, the high level of the clock signal NCK / NCB is lengthened, and when the temperature of the display panel 4 is abnormal, the display panel 4 has a characteristic deviation, the first reset signal output by the gate drive circuit 41 to the first transistor T1 or the first scan signal output by the gate drive circuit 41 to the second transistor T2 is abnormally pulled up due to the coupling with the high level of the clock signal NCK / NCB, resulting in display abnormality of the display panel. Figure 4 As shown in FIG. 1, the display period of the display panel 4 can include a refresh frame stage and a holding frame stage. The refresh frame stage can include 1 refresh frame (1Frame), and the holding frame stage can include 11 holding frames (11Frame). In the refresh frame stage t10 of the display panel, the signal frequency of the clock signal NCK / NCB provided to the gate drive circuit 41 is the default frequency F1.

[0062] According to the display module provided by the embodiment of the present application, the temperature of the display panel is collected in real time, so that in the holding frame stage of the display panel, the first clock signal frequency corresponding to the temperature of the display panel is determined, and the clock signal is provided to the gate drive circuit according to the first clock signal frequency, so as to avoid the display abnormality problem caused by the too low frequency of the clock signal when the temperature of the display panel is abnormal, thereby reducing the power consumption of the display module while ensuring the display effect.

[0063] Correspondingly, the embodiment of the present application also provides a display device. The display device includes the display module, which will not be described in detail here.

[0064] According to the display device provided by the embodiment of the present application, the temperature of the display panel is collected in real time, so that the first clock signal frequency corresponding to the temperature of the display panel is determined in the holding frame stage of the display panel, and the clock signal is provided to the gate drive circuit according to the first clock signal frequency, so as to avoid the display abnormality problem caused by the too low frequency of the clock signal when the temperature of the display panel is abnormal, thereby reducing the power consumption of the display module while ensuring the display effect.

[0065] The display device provided by the embodiment of the present application can be applied to any product or component with display function, such as mobile phone, tablet computer, television, display, notebook computer, digital photo frame, navigator, etc.

[0066] Correspondingly, the embodiment of the present application also provides a control method of display module, which can be applied to the above display module.

[0067] Referring to Figure 5 The flowchart of the control method of display module provided by the embodiment of the present application is shown. The display module includes a display panel, and the display panel includes a gate drive circuit.

[0068] As shown in Figure 5 The control method of display module provided by the embodiment of the present application includes steps 510 to 530, as follows:

[0069] Step 510, collecting the temperature of the display panel in real time.

[0070] The display module further includes a temperature sensor, and the temperature of the display panel is collected in real time by the temperature sensor.

[0071] Step 520, determining the first clock signal frequency corresponding to the temperature in the holding frame stage of the display panel, and the temperature and the first clock signal frequency are in a positive correlation.

[0072] The display module further includes a terminal module, and the first clock signal frequency corresponding to the temperature is determined by the terminal module in the holding frame stage of the display panel. When the temperature of the display panel changes, the first clock signal frequency also changes. The higher the temperature of the display panel is, the greater the first clock signal frequency is.

[0073] Step 530, providing the clock signal to the gate drive circuit according to the first clock signal frequency.

[0074] The display module further includes a driving module, and the driving module provides the clock signal to the gate drive circuit according to the first clock signal frequency. The display panel further includes a pixel circuit, and the gate drive circuit provides the reset signal or the scanning signal to the pixel circuit according to the clock signal.

[0075] In some embodiments, in the holding frame stage of the display panel, the first clock signal frequency corresponding to the temperature is determined, including:

[0076] In the holding frame stage of the display panel, the target temperature interval to which the temperature of the display panel belongs is determined from the preset plurality of temperature intervals;

[0077] According to the preset correspondence between the temperature interval and the clock signal frequency, the target clock signal frequency corresponding to the target temperature interval is determined, and the target clock signal frequency is taken as the first clock signal frequency.

[0078] In order to reduce the adjustment frequency of the first clock signal frequency, a plurality of temperature intervals can be preset, and the plurality of temperature intervals cover all temperatures that the display panel can reach. A clock signal frequency is set for each temperature interval, and the clock signal frequencies corresponding to different temperature intervals are different, and the higher the temperature in the temperature interval, the greater the clock signal frequency corresponding to the temperature interval.

[0079] When the display panel is converted from the refreshing stage to the holding frame stage, the temperature of the display panel is obtained, the target temperature interval to which the temperature belongs is first determined from the plurality of temperature intervals, and then the target clock signal frequency corresponding to the target temperature interval is taken as the first clock signal frequency. In the holding frame stage of the display panel, if the temperature of the display panel changes, it is judged whether the target temperature interval to which the temperature belongs changes, if not, the first clock signal frequency is not adjusted; if it changes, the target temperature interval is determined again, and the clock signal frequency corresponding to the target temperature interval is determined again.

[0080] In some embodiments, the control method of the display module further includes:

[0081] In the refreshing frame stage of the display panel, a default second clock signal frequency is provided, and the second clock signal frequency is greater than or equal to the first clock signal frequency;

[0082] According to the second clock signal frequency, a clock signal is provided to the gate driving circuit.

[0083] According to the second clock signal frequency, a clock signal is provided to the gate driving circuit, so as to ensure that the display panel normally refreshes and displays in the refreshing frame stage.

[0084] According to the control method of the display module provided by the embodiments of the present application, the temperature of the display panel is collected in real time, so as to determine the first clock signal frequency corresponding to the temperature of the display panel in the holding frame stage of the display panel, and a clock signal is provided to the gate driving circuit according to the first clock signal frequency, so as to avoid the problem of display abnormality caused by the too low frequency of the clock signal when the temperature of the display panel is abnormal, thereby reducing the power consumption of the display module while ensuring the display effect.

[0085] The terms "first", "second", and the like in the description and in the claims of this application are used for distinguishing between similar objects and not necessarily for describing a specific sequential or chronological order. It is to be understood that the use of these terms herein is merely for distinguishing between the similar objects and the use of these terms in the description and the claims of this application is not to be construed as implying a specific order or chronology between the similar objects. The data used in the description and the claims of this application are interchangeable and can be used in any order, unless otherwise indicated by context.

[0086] In the description of the present application, the meaning of "a plurality" is two or more.

[0087] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "certain embodiments", "an example", "a specific example", or "some examples" and the like means that a particular feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. The illustrative appearances of the above terms in various places in the specification are not necessarily referred to the same embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics can be combined in any suitable manner in one or more embodiments or examples.

[0088] Although the embodiments of the present application have been shown and described, it would be appreciated by those skilled in the art that changes, modifications, alternatives and variations to these embodiments could be made without departing from the principles and spirit of the application, the scope of which is defined in the claims and their equivalents.

Claims

1. A display module, characterized by The display module comprises a temperature sensor, a terminal module, a driving module and a display panel, the display panel comprises a gate driving circuit, and the display panel is an LTPO display panel; The temperature sensor is connected with the terminal module and is configured to collect the temperature of the display panel in real time; The terminal module is connected with the driving module, and is configured to provide a default third clock signal frequency to the driving module when the display panel is switched from a refresh frame stage to a hold frame stage, the third clock signal is a clock signal frequency corresponding to a lowest temperature interval that the display panel can reach; in the hold frame stage of the display panel, when it is detected that the temperature reaches a preset temperature threshold, a first clock signal frequency corresponding to the temperature is determined, and the third clock signal frequency is adjusted to the first clock signal frequency and provided to the driving module, the first clock signal frequency is greater than the third clock signal frequency; The driving module is connected with the gate driving circuit, and is configured to provide a clock signal to the gate driving circuit according to the third clock signal frequency or the first clock signal frequency.

2. The display module of claim 1, wherein, The temperature and the first clock signal frequency are in a positive correlation.

3. The display module of claim 1, wherein, The terminal module is further configured to determine a target temperature interval to which the temperature belongs from a plurality of preset temperature intervals in the hold frame stage of the display panel, determine a target clock signal frequency corresponding to the target temperature interval according to a preset correspondence between temperature intervals and clock signal frequencies, and take the target clock signal frequency as the first clock signal frequency.

4. The display module of claim 1, wherein, The terminal module is further configured to provide a default second clock signal frequency to the driving module in the refresh frame stage of the display panel, the second clock signal frequency is greater than or equal to the first clock signal frequency; The driving module is further configured to provide the clock signal to the gate driving circuit according to the second clock signal frequency.

5. The display module of claim 1, wherein, The display module further comprises a temperature sensing layer on the display panel, and the temperature sensor is located in the temperature sensing layer.

6. The display module of claim 1, wherein, The temperature sensor is integrated in the driving module.

7. The display module of claim 1, wherein, The display panel further comprises a pixel circuit; The gate driving circuit is connected with the pixel circuit and is configured to provide a reset signal or a scan signal to the pixel circuit according to the clock signal.

8. The display module of claim 7, wherein, The pixel circuit comprises an N-type transistor, and an output end of the gate driving circuit is connected with a control end of the N-type transistor.

9. A display device, characterized by comprising: The display module comprises the display panel comprising the gate driving circuit.

10. A control method of a display module according to any one of claims 1 to 8, characterized by, The display module comprises the display panel comprising the gate driving circuit. The method comprises: collecting the temperature of the display panel in real time; determining a first clock signal frequency corresponding to the temperature in the hold frame stage of the display panel, the temperature and the first clock signal frequency being in a positive correlation; providing a clock signal to the gate driving circuit according to the first clock signal frequency.

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