Display device and control method thereof

Abstract

The invention relates to a display device and a control method of the display device. The display device comprises a display panel; the at least one temperature sensor is used for sensing the temperature of the display panel; the thermal interaction module is located on the backlight side of the display panel; the control module is electrically connected with the heat interaction module, and the control module is used for controlling the heat interaction module to adjust the temperature of the display panel according to the temperature of the display panel. The temperature of the display panel can be controlled within the preset stable range, the color cast problem caused by temperature change to the display panel is reduced, and the display effect is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of display panels, and in particular to a display device and a control method of the display device. Background Art

[0002] In actual use, the display panel is easily affected by temperature and has color deviation problems. For example, taking Micro-LED (Micro Light Emitting Diode Display) as an example, as the ambient temperature changes, the white balance and gamma calibrated at room temperature will deviate from the design indicators at higher or lower temperatures, causing the display panel to have color deviation. One of the main reasons for color deviation is that the brightness and chromaticity of the light-emitting chip of the display panel change differently with temperature, causing the white balance and gamma calibrated at room temperature to deviate at high or low temperatures, affecting the actual display effect. Summary of the invention

[0003] In order to solve the above technical problems, the present disclosure provides a display device and a control method of the display device.

[0004] In a first aspect, the present disclosure provides a display device, comprising:

[0005] Display panel;

[0006] at least one temperature sensor, configured to sense the temperature of the display panel;

[0007] A thermal interaction module located on the backlight side of the display panel;

[0008] A control module is electrically connected to the thermal interaction module, and is used to control the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel.

[0009] In a second aspect, the present disclosure further provides a method for controlling a display device, which is applicable to any display device provided in the first aspect, and the method includes:

[0010] Acquiring the temperature of the display panel;

[0011] According to the temperature of the display panel, the thermal interaction module is controlled to adjust the temperature of the display panel.

[0012] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0013] The display device provided by the present disclosure is provided with at least one temperature sensor for sensing the temperature of the display panel. A thermal interaction module is also provided for adjusting the temperature of the display panel. If it is detected that the temperature of the display panel is too high or too low, it is considered that the current display panel is prone to color deviation. To avoid this situation, the control module controls the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel detected by the temperature sensor, controls the temperature of the display panel within a preset stable range, reduces the color deviation problem caused by the temperature change to the display panel, and improves the display effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0016] Figure 1 A schematic diagram of the structure of a display device provided in an embodiment of the present disclosure;

[0017] Figure 2 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0018] Figure 3 A partial top view schematic diagram of a layout of temperature sensors provided in an embodiment of the present disclosure;

[0019] Figure 4 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0020] Figure 5 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0021] Figure 6 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0022] Figure 7 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0023] Figure 8 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0024] Fig. 9 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0025] Fig.10 A partial top view schematic diagram of another arrangement of temperature sensors provided in an embodiment of the present disclosure;

[0026] Fig.11 A partial top view schematic diagram of another arrangement of temperature sensors provided in an embodiment of the present disclosure;

[0027] Fig.12 A partial top view schematic diagram of another arrangement of temperature sensors provided in an embodiment of the present disclosure;

[0028] Fig.13 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0029] Fig.14 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0030] Fig.15 A schematic diagram of the structure of another display device provided in an embodiment of the present disclosure;

[0031] Fig.16 A flow chart of a method for controlling a display device provided by an embodiment of the present disclosure;

[0032] Fig.17 A schematic flow chart of another method for controlling a display device provided in an embodiment of the present disclosure;

[0033] Fig.18 A schematic flow chart of another method for controlling a display device provided in an embodiment of the present disclosure;

[0034] Fig.19 A flowchart of another method for controlling a display device provided in an embodiment of the present disclosure. DETAILED DESCRIPTION

[0035] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0036] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0037] In view of the above-mentioned defects, the present disclosure provides a display device. Figure 1 A schematic diagram of a display device according to an embodiment of the present disclosure is provided. Figure 1The display device includes: a display panel 10; at least one temperature sensor 20, used to sense the temperature of the display panel 10; a thermal interaction module 30 located on the backlight side of the display panel; and a control module 40, the control module 40 is electrically connected to the thermal interaction module 30, and the control module 40 is used to control the thermal interaction module 30 to adjust the temperature of the display panel 10 according to the temperature of the display panel 10.

[0038] Exemplarily, the display device includes a display panel 10, and at least one temperature sensor 20 is provided to sense the temperature of the display panel. Figure 1 Exemplarily, eight temperature sensors 20 are provided. In other embodiments, other numbers of temperature sensors may be provided, which may be selected according to actual needs. Among them, the temperature sensor may be a metal wire. Since the resistance of the metal wire changes with the temperature, the temperature corresponding to the current metal wire can be determined by detecting the resistance change of the metal wire, thereby realizing the temperature detection of the position where the metal wire is located. For example, a temperature detector circuit board may also be provided to obtain the resistance of the metal wire. The display panel may have color deviation as the ambient temperature changes. For example, the white balance and gamma value calibrated in a normal temperature environment may deviate from the indicators during the design test at higher or lower temperatures. Therefore, the embodiment of the present disclosure is provided with a thermal interaction module 30 and a control module 40, and the thermal interaction module 30 is electrically connected to the control module 40. The thermal interaction module 30 is provided on the backlight side of the display panel so as to thermally interact with the display panel 10, adjust the temperature of the display panel 10, and will not affect the normal light output of the display panel 10.

[0039] Specifically, the temperature sensor 20 senses the temperature of the display panel 10 in real time and sends it to the control module 40. When the temperature of the display panel 10 is higher or lower due to the influence of the environment or the light emission of the display panel 10, and exceeds the preset stable temperature range, it can be considered that the display panel 10 is more likely to have color deviation. Therefore, the control module 40 will control the thermal interaction module 30 to adjust the temperature of the display panel 10 according to the temperature of the display panel 10, adjust the temperature of the display panel 10 to within the preset stable temperature range, and reduce the color deviation problem caused by the temperature change of the display panel 10. Among them, when the thermal interaction module 30 adjusts the temperature of the display panel 10, the display panel 10 can be heated or dissipated (or cooled) according to the actual situation. For example, when the temperature of the display panel 10 is higher than the preset stable temperature range, the control module 40 controls the thermal interaction module 30 to dissipate heat or cool to reduce the temperature of the display panel 10; when the temperature of the display panel is lower than the preset stable temperature range, the control module 40 controls the thermal interaction module 30 to heat to increase the temperature of the display panel 10, thereby achieving adjustment of different temperature conditions. The color deviation of the display panel caused by the change of ambient temperature or the temperature change caused by the light emission of the display panel itself is reduced, and the display effect of the display panel is improved.

[0040] The display device provided by the present disclosure is provided with at least one temperature sensor for sensing the temperature of the display panel. A thermal interaction module is also provided for adjusting the temperature of the display panel. When it is detected that the temperature of the display panel is too high or too low and exceeds the preset stable temperature range, it is considered that the current temperature will cause the display panel to have color deviation. At this time, to avoid this situation, the control module controls the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel detected by the temperature sensor, so that the temperature of the display panel is controlled within the preset stable range, so as to reduce the color deviation problem caused by the temperature change to the display panel.

[0041] It should be noted that the display panel in the display device may be a Micro-LED, and the light effect of a Micro-LED is more sensitive to temperature, so the display effect is easily affected by temperature. In other embodiments, the display panel may also be an OLED, etc., which is also affected by temperature, so the technical solution provided in the embodiment of the present disclosure can also solve the color shift problem caused by temperature.

[0042] Optionally, the chromaticity and brightness of the display panel are adjusted by gamma compensation, and the display panel is driven according to a gamma curve corresponding to the temperature of the display panel. That is, when the display panel is at different temperatures, the display panel is driven using a gamma curve corresponding to the temperature.

[0043] Taking the display panel as Micro-LED as an example, the gamma curve is set according to the standard that the chromaticity and brightness change of the display panel is △Eab<1, and a gamma curve is set at an interval of about 1 degree. However, the number of gamma curves that the driver chip can store is limited, for example, about 15. If the temperature change range of -40°C to 85°C is considered, one gamma curve corresponds to a temperature change range of ~8°C. A large temperature interval can easily cause the human eye to recognize changes in the brightness and chromaticity of the display panel during gamma compensation. Therefore, based on the sensitivity of Micro-LED lighting effects to temperature and the limitations of the storage space of the gamma curve, it is easy for Micro-LED to cause brightness and chromaticity jitter of the picture when performing color deviation compensation, affecting the visual perception. However, in the disclosed embodiment, the temperature of the display panel is sensed by a temperature sensor. If the temperature of the display panel is too high or too low, the control module controls the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel detected by the temperature sensor, so that the temperature of the display panel is controlled within a preset stable temperature range. Within this preset stable temperature range, the temperature interval of the set gamma curve is small, and the display panel is driven using the gamma curve corresponding to the temperature of the display panel. There will be no changes in the brightness and chromaticity of the display panel that are recognizable to the human eye, thus avoiding jitter of the display panel image during gamma compensation.

[0044] In some embodiments, Figure 2A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Figure 2 , the temperature sensor 20 is located and integrated in the display panel 10 .

[0045] For example, the temperature sensor 20 is integrated into the display panel 10. The temperature sensor 20 is closer to the display panel 10, and can accurately and directly sense the temperature change inside the display panel 10, obtain the actual temperature of the display panel 10, and reduce the interference of the external environment temperature on the sensing process of the temperature sensor 20. Then, the temperature is transmitted to the control module 40, and the control module 40 controls the thermal interaction module 30 to adjust the temperature of the display panel 10. In addition, integrating the temperature sensor 20 inside the display panel 10 can also effectively reduce the overall thickness of the display device, which is conducive to the thin and light design of the display device.

[0046] It should be noted that the display panel 10 includes a plurality of film layers and circuit structures. The embodiment of the present disclosure does not limit the specific position and number of the temperature sensor 20 , which can be set according to actual needs.

[0047] In some embodiments, continue to refer to Figure 2 , the temperature sensor 20 is located between the driving circuit layer 102 and the substrate 101 of the display panel 10 .

[0048] Exemplarily, the temperature sensor 20 can be disposed between the driving circuit layer 102 and the substrate 101 of the display panel 10. For example, a metal film layer is disposed between the driving circuit layer 102 and the substrate 101, and a metal wire is made through the metal film layer to obtain the temperature sensor 20. The embodiment of the present disclosure does not limit the length, width, and specific material of the metal wire, and it can be set according to actual needs. The metal wire can be used as the temperature sensor 20. When the temperature of the display panel 10 changes, the resistance of the metal wire will change accordingly. The resistance of the metal wire can be obtained by the detection device to determine the temperature of the display panel 10.

[0049] Therefore, the embodiment of the present disclosure can not only accurately and directly sense the temperature changes inside the display panel 10, obtain the actual temperature of the display panel 10, and reduce the interference of the external ambient temperature on the sensing process of the temperature sensor 20, but also effectively reduce the overall thickness of the display device, which is conducive to the lightweight design of the display device.

[0050] In some embodiments, Figure 3 A partial top view schematic diagram of a layout of temperature sensors provided in an embodiment of the present disclosure, referring to Figure 3 The temperature sensor 20 is in a curved wiring shape and is at least partially overlapped with a plurality of pixels of different colors of the display panel 10 .

[0051] Exemplarily, the disclosed embodiment provides some pixels in a display panel, such as a plurality of red pixels A11, a green pixel A12, and a blue pixel A13, and pixels of different colors are arranged in an array in the display panel. The temperature sensor 20 is integrated in the display panel 10, and can be set to a curved line shape, and overlaps with a plurality of pixels of different colors of the display panel 10. The overlap between the temperature sensor and the pixels of multiple different colors can uniformly detect the temperature of different pixel positions, and the area of ​​a single pixel is limited, and the degree of resistance change is limited, which is not conducive to temperature detection. By making the temperature sensor 20 overlap with the pixels of multiple different colors at least, the length of the temperature sensor 20 is increased, the resistance value is increased, and the resistance value change will be more obvious after the temperature changes, which is conducive to the subsequent detection of different temperatures. In addition, the two ends of the curved line-shaped temperature sensor can be led out to the lower edge of the display panel 10 through metal leads, and the resistance change is measured through the temperature detector circuit board.

[0052] It should be noted that the drawings provided in the embodiments of the present disclosure are only an optional implementation method, showing the overlapping relationship between the curved wiring-shaped temperature sensor and the pixel. The wiring shape of the actual temperature sensor and the area of ​​the pixel can be set according to actual needs, for example, it can be set to a grid-shaped wiring, a W-shaped wiring, etc. The distance between different temperature sensors can also be selected according to actual needs, and the embodiments of the present disclosure do not provide specific explanations for this. In addition, the temperature sensor can also use other types of devices for temperature detection instead of metal wires.

[0053] In some embodiments, continue to refer to Figure 1 , the temperature sensor 20 is arranged on the backlight side of the display panel 10 .

[0054] For example Figure 1 , the arrow direction is the light emitting direction of the display panel 10, and the side away from the light emitting direction is the backlight side of the display panel 10. The temperature sensor 20 can be arranged on the backlight side of the display panel 10, which can not only sense the temperature of the display panel 10, but also prevent the temperature sensor 20 from blocking the light emitting of the display panel 10 and affecting the light emitting effect of the display panel 10. In addition, arranging the temperature sensor 20 outside the display panel 10 will not affect the original panel structure and process technology of the display panel 10, and can simplify the overall design.

[0055] In some embodiments, Figure 4 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Figure 4 A heat-dissipating layer 50 is disposed between the display panel 10 and the thermal interaction module 30 .

[0056] Since the display panel 10 displays different patterns at different positions during the display process, the brightness at different positions may also be different, and the temperature of the area with higher brightness will be higher than that of the area with lower brightness, which leads to temperature differences at various positions in the entire display panel, and the overall temperature of the display panel is uneven, resulting in different degrees of color deviation, resulting in uneven brightness and chromaticity of the display panel. In the subsequent adjustment process, there is a situation where the color deviation of a certain area is adjusted, but the color deviation of another area cannot be solved or is greater. Therefore, in order to avoid the above situation, in the embodiment of the present disclosure, a heat-averaging layer 50 is provided, and the heat-averaging layer 50 is provided between the display panel 10 and the thermal interaction module 30. The temperature of each position of the display panel 10 is uniform and at the same temperature level through the heat-averaging layer 50, so as to avoid uneven temperature of the display panel 10 and affect the subsequent adjustment of the color deviation problem of the entire display panel drive. In addition, the heat-averaging layer 50 is provided between the display panel 10 and the thermal interaction module 30, which will not affect the original panel structure and process technology of the display panel 10. The heat-dissipating layer 50 can be a metal plate, such as copper foil, aluminum plate, VC plate (Vapor Chambers), etc., which can be selected according to actual needs and can be attached to a desired position.

[0057] In some embodiments, continue to refer to Figure 4 , the temperature sensor 20 is located between the heat-dissipating layer 50 and the thermal interaction module 30 .

[0058] For example, the temperature sensor 20 may be disposed between the heat-absorbing layer 50 and the thermal interaction module 30. When the thermal interaction module 30 adjusts the temperature of the display panel 10, the display panel 10 needs to be uniformly temperature-controlled through the heat-absorbing layer 50. For example, when the temperature sensor 20 senses that the temperature of the display panel 10 is too low, the thermal interaction module 30 needs to be used to heat it. The thermal interaction module 30 transfers heat to the heat-absorbing layer 50, and the heat-absorbing layer 50 uniformly heats each area of ​​the display panel 10.

[0059] In some embodiments, Figure 5 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Figure 5 The thermal interaction module 30 is provided with a first groove structure 31 , and the temperature sensor 20 is located in the first groove structure 31 .

[0060] For example, the thermal interaction module 30 is provided with a first groove structure 31, and the temperature sensor 20 can be located in the first groove structure 31, which effectively reduces the thickness of the display device as a whole, and is conducive to the thin and light design of the display device. The number of the first groove structures 31 corresponds to the number of the temperature sensors 20, and the structures also correspond to each other, so that the temperature sensor 20 is embedded in the first groove structure 31. Figure 5The first groove structure 31 provided in the figure can be understood as a cross-sectional view. In the top view, the first groove structure 31 can have the same shape as the temperature sensor 20. The same here means the same within a certain range.

[0061] In some embodiments, Figure 6 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Figure 6 , the temperature sensor 20 is located between the heat-dissipating layer 50 and the display panel 10 .

[0062] For example, in order to more accurately obtain the temperature of the display panel 10, the temperature sensor 20 can be located between the heat-absorbing layer 50 and the display panel 10, so that the temperature sensor 20 is closer to the display panel 10, thereby improving the accuracy of sensing the temperature. In addition, the temperature sensor 20 and the thermal interaction module 30 are separated by the heat-absorbing layer 50, which can reduce the influence of the temperature of the thermal interaction module 30 on the sensing process of the temperature sensor 20, further improve the accuracy of sensing the temperature of the display panel 10, and avoid the detection error caused by the instantaneous temperature change of the thermal interaction module 30.

[0063] In some embodiments, Figure 7 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Figure 7 The heat-spreading layer 50 is provided with a second groove structure 51 , and the temperature sensor 20 is located in the second groove structure 51 .

[0064] For example, the heat-spreading layer 50 is provided with a second groove structure 51, and the temperature sensor 20 can be located in the second groove structure 51, which effectively reduces the thickness of the display device as a whole, and is conducive to the thin and light design of the display device. In addition, the distance between the heat-spreading layer 50 and the display panel 10 can be reduced, and the heat-spreading layer 50 can better contact the display panel to avoid affecting the heat-spreading effect. Among them, the number of second groove structures 51 corresponds to the number of temperature sensors 20, and the structure also corresponds to each other, so that the temperature sensor 20 is embedded in the second groove structure 51. Figure 7 The second groove structure 51 provided in the figure can be understood as a cross-sectional view. In the top view, the second groove structure 51 can have the same shape as the temperature sensor 20. The same here means the same within a certain range.

[0065] In some embodiments, Figure 8 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Figure 8 The thermal interaction module 30 includes a heating module 310 and a heat dissipation module 320 ; the heat dissipation module 320 is located on a side of the heating module 310 away from the display panel 10 .

[0066] In the embodiment of the present disclosure, the thermal interaction module 30 can adjust the temperature of the display panel 10, and the temperature adjustment includes heating the display panel to increase its temperature, and dissipating or cooling the display panel to reduce its temperature. Therefore, the thermal interaction module 30 includes a heating module 310 and a heat dissipation module 320, wherein the heat dissipation module 320 is located on the side of the heating module 310 away from the display panel 10, so that the heat dissipation module 320 can dissipate the heat of the display panel 10 to the external environment, avoiding the heat from being retained in the display device and affecting the temperature of the display panel 10.

[0067] For example, when the temperature sensor 20 senses that the temperature of the display panel 10 is too high, the control module 40 controls the heat dissipation module 320 to start and cool down the display panel 10. When the temperature sensor 20 senses that the temperature of the display surface is too low, the control module controls the heating module 310 to start and heat the display module.

[0068] Optionally, the heating module and the heat dissipation module may be the same module. For example, a metal wire. When the temperature of the display panel is low, the metal wire is heated to increase the temperature of the metal wire, and then the metal wire provides heat to the display panel to increase the temperature of the display panel. When the temperature of the display panel is high, the metal wire can also transfer the temperature of the display panel to itself, and then dissipate it to the outside to achieve the purpose of cooling.

[0069] In some embodiments, continue to refer to Figure 8 The heat dissipation module 320 includes a refrigeration part and / or a heat dissipation fin part.

[0070] Exemplarily, when the heat dissipation module 320 dissipates heat for the display panel, there may be two different operation modes, one is an active heat dissipation mode, and the other is a passive heat dissipation mode, and there are differences in the start timing of the two heat dissipation modes. Specifically, in the active heat dissipation mode, a temperature range needs to be pre-set. When the temperature sensor 20 senses that the temperature of the display panel 10 exceeds the pre-set temperature range, the heat dissipation module 320 cools down the display panel 10. In the passive heat dissipation mode, the heat dissipation module 320 continues to dissipate heat without subsequent operations based on the current temperature of the display panel 10. Therefore, the heat dissipation module 320 includes a refrigeration unit, which belongs to the active heat dissipation mode, and the timing of starting the refrigeration is determined according to the temperature of the display panel 10. Alternatively, the heat dissipation module 320 includes a heat dissipation fin unit, which belongs to the passive heat dissipation mode, and the heat dissipation fin unit can be directly attached to the desired position, and the heat dissipation is performed after absorbing the heat of the display panel 10 without control. The heat dissipation effect is related to the area of ​​the heat dissipation fin unit. Therefore, the heat dissipation module 320 may include at least one of a refrigeration part and a heat dissipation fin part to dissipate heat for the display panel 10 , and the superposition of the two can further improve the heat dissipation effect.

[0071] In some embodiments, continue to refer to Figure 8 The refrigeration unit includes a semiconductor refrigeration sheet.

[0072] In the disclosed embodiment, the refrigeration unit includes a semiconductor refrigeration sheet, which is a cooling device composed of semiconductors. When direct current passes through a couple formed by two different semiconductor materials connected in series, heat can be absorbed and released at both ends of the couple, respectively, thereby achieving the purpose of refrigeration. Among them, the two different semiconductor materials are P-type semiconductors and N-type semiconductors. The external leads of the semiconductor refrigeration sheet have positive and negative polarities. Changing the direction of the current will change the heat absorption surface and the heat dissipation surface of the semiconductor refrigeration sheet. The use of semiconductor refrigeration sheets does not require any refrigerant, has no pollution source, can work continuously and has a long service life, and has no vibration or noise during operation. And the semiconductor refrigeration sheet can achieve high-precision temperature control under current control, and the temperature adjustment range is relatively wide, which is beneficial to the temperature adjustment of the display panel 10.

[0073] In some embodiments, continue to refer to Figure 8 The heat dissipation fin portion is located on a side of the cooling portion away from the display panel.

[0074] Since the temperature of the side of the refrigeration unit close to the display panel is lower, the display panel 10 is cooled, while the temperature of the side of the refrigeration unit away from the display panel is relatively higher. Therefore, in the embodiment of the present disclosure, the heat dissipation fins are arranged on the side of the refrigeration unit away from the display panel, and the heat dissipation fins can also be used to cool the side of the refrigeration unit with a higher temperature, thereby reducing the temperature of the entire display device.

[0075] In some embodiments, the thermal interaction module includes an air duct structure; the air duct structure is connected to the air duct of the vehicle air conditioner.

[0076] For example, the display screen in the vehicle is greatly affected by the ambient temperature, so the display panel is easily affected by the temperature and has color deviation. Therefore, the display device provided by the embodiment of the present disclosure can be applied to the vehicle as the display screen of the vehicle to reduce the influence of the external ambient temperature.

[0077] Among them, when the thermal interaction module in the display device adjusts the temperature of the display panel, it can both heat up the display panel and cool down the display panel. When the display device provided by the embodiment of the present disclosure is set in a vehicle, the thermal interaction module may also include an air duct structure, and the air duct structure is connected to the air duct of the vehicle air conditioner. By controlling the heating or cooling of the vehicle air conditioner, the purpose of controlling the heating or cooling (heat dissipation) of the thermal interaction module is achieved. For example, when the temperature of the display panel is too high, the air duct of the air conditioner is used to transfer hot air to the air duct structure of the thermal interaction module, so that the thermal interaction module can increase the temperature of the display panel. In the vehicle, the temperature of the display panel is adjusted by using the existing air conditioning structure of the vehicle, which can simplify the overall structure of the display panel.

[0078] In some embodiments, Fig. 9 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Fig. 9 The display device includes multiple temperature sensors 20; the thermal interaction module 30 includes multiple thermal interaction sub-modules 301, and each thermal interaction sub-module 301 is provided with at least one temperature sensor 20 in the corresponding area; the multiple thermal interaction sub-modules 301 are electrically connected to the control module 40.

[0079] The thermal interaction module 30 in the embodiment of the present disclosure includes a plurality of thermal interaction submodules 301, and at least one temperature sensor 20 is provided in the corresponding area of ​​each thermal interaction submodule 301. The temperature sensor 20 in the area is used to sense the temperature of the display panel 10 in the corresponding area. When the temperature sensor 20 in a certain area senses that the temperature of the display panel is high or low, the control module 40 controls the thermal interaction submodule 301 in the corresponding area to adjust the temperature of the display panel 10.

[0080] For example, Fig. 9 Only part of the structure of the display device is shown in the figure. Taking four thermal interaction submodules 301 as an example, each thermal interaction submodule 301 is electrically connected to the control module 40, and two temperature sensors are provided in the corresponding area of ​​each thermal interaction submodule 301 to sense the temperature of the display panel 10 in the corresponding area. If the temperature sensor 20 in the corresponding area of ​​the first thermal interaction submodule 301 senses that the temperature of the display panel 10 in this area is high, while the temperatures of the display panels 10 in the other three areas are stable, there is no need to adjust the temperature of the entire display panel 10. The control module 40 will control the first thermal interaction submodule 301 to dissipate heat in this area of ​​the display panel 10, reduce the temperature of this part of the display panel 10, and realize regionalized local control of the display panel. If the temperature sensor 20 of the area corresponding to the second thermal interaction submodule 301 senses that the temperature of the area of ​​the display panel 10 is high, and the temperature sensor 20 of the area corresponding to the fourth thermal interaction submodule 301 senses that the temperature of the area of ​​the display panel 10 is low, then the control module 40 controls the second thermal interaction submodule 301 to dissipate heat from the area of ​​the display panel 10, and controls the fourth thermal interaction submodule 301 to heat the area of ​​the display panel 10. Thus, the display panel is divided into multiple areas, and the temperatures of different areas are adjusted in a targeted manner, which can not only achieve accurate adjustment of the temperatures of different areas of the display panel 10, but also reduce overall power consumption.

[0081] In some embodiments, Fig.10 A partial top view of another arrangement of temperature sensors provided in an embodiment of the present disclosure is shown in FIG. Fig.10The display panel 10 includes a plurality of temperature sensors 20 , and the plurality of temperature sensors 20 are evenly distributed on the display panel 10 .

[0082] For example Fig.10 , the embodiment of the present disclosure provides a local structure in the display device, showing some temperature sensors 20. The display panel 10 includes a plurality of temperature sensors 20, and they are evenly distributed on the display panel 10, so as to fully sense the temperature of different areas of the display panel 10 and avoid missing certain areas. The specific structure, quantity and placement of the temperature sensor 20 can be set according to actual needs, and the embodiment of the present disclosure does not limit the spacing between adjacent temperature sensors 20. The temperature sensor 20 can be located inside the display panel 10 or outside the display panel 10. The figure only represents that the two overlap, and does not represent the specific film layer order.

[0083] in addition, Fig.10 This only shows a feasible way to evenly distribute the temperature sensors. Adjacent rows / columns can also be staggered, etc. For example, refer to Fig.11 , Fig.11 This is a partial top view schematic diagram of another arrangement of temperature sensors provided in an embodiment of the present disclosure, in which the temperature sensors 20 are evenly and staggered.

[0084] In some embodiments, Fig.12 A partial top view of another arrangement of temperature sensors provided in an embodiment of the present disclosure is shown in FIG. Fig.12 , the display device includes a plurality of temperature sensors 20 ; the display device includes a first area 11 and a second area 12 , and the density of the temperature sensors 20 arranged in the first area 11 is greater than the density of the temperature sensors 20 arranged in the second area 12 .

[0085] Exemplarily, the display device includes a first area 11 and a second area 12. When setting the temperature sensor, the temperature sensor 20 can be set differently according to the needs of different areas. For example, more temperature sensors 20 are set for areas in the display panel 10 where the temperature changes greatly or generates more heat, so as to more accurately sense the temperature conditions of various positions in the area. For areas in the display panel 10 where the temperature changes less or generates less heat, a small number of temperature sensors 20 can be set to save costs. Thus, the display device can be divided into the first area 11 and the second area 12, and the density of the temperature sensors 20 set in the first area 11 is greater than the density of the temperature sensors 20 set in the second area 12. Taking the vehicle display screen as an example, the area where the main display screen is the center of the display screen, the heat generated in this area is large, and the display panel 10 is more susceptible to temperature, so this area is the first area 11, and the density of the temperature sensors 20 set is large and the number is large. The edge of the vehicle display screen usually does not display too much content, and the heat generated in this area is small, so this area is the second area 12, and the density of the temperature sensors set is small and the number is small.

[0086] It should be noted that the embodiment of the present disclosure does not limit the specific division of the first area and the second area of ​​the display device, and the above embodiment is only an optional implementation. The purpose of the embodiment of the present disclosure is to set the number of temperature sensors differently according to the actual needs of different areas.

[0087] In some embodiments, continue to refer to Fig.12 , a distance h1 between adjacent temperature sensors 20 in the first region 11 is smaller than a distance h2 between adjacent temperature sensors 20 in the second region 12 .

[0088] Specifically, the distance between adjacent temperature sensors in the first region 11 is h1, and the distance between adjacent temperature sensors 20 in the second region 12 is h2, where h1<h2. Therefore, when the first region 11 and the second region 12 have the same area size, more temperature sensors 20 can be arranged in the first region 11, and fewer temperature sensors 20 are arranged in the second region 12, so that the density of the temperature sensors 20 arranged in the first region 11 is greater than the density of the temperature sensors 20 arranged in the second region 12, thereby realizing the differentiated design of the temperature sensors 20 in the first region 11 and the second region 12.

[0089] In some embodiments, Fig.13 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Fig.13 At least one first-type temperature sensor 21 and at least one second-type temperature sensor 22 are arranged in the corresponding area of ​​the thermal interaction submodule 301 .

[0090] The control module 40 is used to control the second type temperature sensor 22 corresponding to the same thermal interaction submodule 301 as the first type temperature sensor 21 to obtain the temperature of the display panel 10 based on the temperature difference detected by the first type temperature sensor 21 in the corresponding areas of different thermal interaction submodules 301 being greater than the temperature difference threshold.

[0091] Exemplarily, in order to avoid errors in sensing the temperature of the display panel and affecting the subsequent adjustment of the color deviation of the display panel, the embodiment of the present disclosure is provided with at least one first type temperature sensor 21 and at least one second type temperature sensor 22 in the corresponding interval of the thermal interaction submodule 301. Fig.13 Four heat interaction submodules 301 are provided as examples, namely, a first heat interaction submodule 3011, a second heat interaction submodule 3012, a third heat interaction submodule 3013, and a fourth heat interaction submodule 3014. Each heat interaction submodule 301 is provided with a first type temperature sensor 21 and a first and second type temperature sensor 22 in the corresponding interval. The specific number of settings can be selected according to actual needs, and the embodiment of the present disclosure is only used as an example.

[0092] Specifically, when sensing the temperature of the display panel 10, the first type of temperature sensor 21 is first used to sense the display panel 10. If the temperature difference between the first type of temperature sensors 21 in the corresponding areas of different thermal interaction submodules 301 is greater than the temperature difference threshold, in order to avoid the first type of temperature sensor 21 from detecting a deviation, the control module 40 controls the second type of temperature sensor 22 corresponding to the same thermal interaction submodule 301 as the first type of temperature sensor 21 to obtain the temperature of the display panel 10. For example, the first type of temperature sensor 21 in the corresponding area of ​​the first thermal interaction submodule 3011 to the fourth thermal interaction submodule 3014 respectively senses the temperature of the display panel 10 in the corresponding area, and obtains the temperature T1, T2, T3 and T4 respectively. If the temperature difference between the temperature T1 and the temperature T4 is greater than the temperature difference threshold, there is reason to suspect that there is a problem between the first type of temperature sensor 21 in the corresponding area of ​​the first thermal interaction submodule 3011 and the first type of temperature sensor 21 in the corresponding area of ​​the second thermal interaction submodule 3014, resulting in a large temperature error. Therefore, the control module 40 controls the second temperature sensor 22 in the area corresponding to the first thermal interaction submodule 3011 and the second temperature sensor 22 in the area corresponding to the second thermal interaction submodule 3014 to obtain the temperature of the display panel 10, and obtain the temperature T1' and the temperature T4' to determine whether the detection data of the first temperature sensor 21 is accurate.

[0093] Therefore, the second type of temperature sensor 22 does not need to be started for a long time. It only needs to be started when the temperature difference detected by the first type of temperature sensor 21 in the corresponding area of ​​different thermal interaction submodules 301 is greater than the temperature difference threshold. This can reduce the power consumption of the second type of temperature sensor 22 to a certain extent and avoid deviations in temperature detection. Among them, the first type of temperature sensor 21 and the second type of temperature sensor 22 are only used to distinguish the main functions of the two types of temperature sensors, and do not represent the models of the two temperature sensors. The first type of temperature sensor 21 is mainly used to sense temperature, and the second type of temperature sensor 22 is mainly used to verify temperature.

[0094] In some embodiments, Fig.14 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Fig.14 The display device further includes a display driver circuit board 60 , which is electrically connected to the display panel 10 , and the control module 40 is integrated on the display driver circuit board 60 .

[0095] In the embodiment of the present disclosure, the display device includes a display driver circuit board 60, which is electrically connected to the display panel 10. The display driver circuit board 60 includes various drive circuits to drive the display panel 10 to emit light. Optionally, the control module 40 is integrated on the display driver circuit board 60 to reduce the space occupied by the hardware structure of the display device and reduce the volume of the display device. The positional relationship between the display driver circuit board 60 and the display panel 10 can be set according to actual needs. Fig.14 The modules included in the block diagram are merely schematic diagrams and do not represent the actual positional relationship between the display driver circuit board 60 and the display panel 10 .

[0096] For example, Fig.15 A schematic diagram of a structure of another display device provided in an embodiment of the present disclosure, referring to Fig.15 , further comprising a multi-channel temperature conversion module 610, a heating power module 620 and a cooling power module 630, wherein the temperature sensor 20 is electrically connected to the control module 40 via the multi-channel temperature conversion module 610, and the thermal interaction module 30 comprises a heating module and a heat dissipation module ( Fig.15 (not shown in the figure), the heating module is electrically connected to the control module 40 through the heating power module 620, and the heat dissipation module is electrically connected to the control module 40 through the cooling power module 630. The multi-channel temperature conversion module 610 can transmit the temperature obtained by the temperature sensor 20 to the control module 40, and the control module 40 will control the heating power module 620 to turn on and start the heating module, or control the cooling power module 630 to turn on and start the heat dissipation module according to the actual temperature of the display panel, so as to adjust the temperature of the display panel 10. The above modules can also be integrated into the driving circuit board 60, or as a discrete structure, which is not limited in the embodiment of the present disclosure.

[0097] In some embodiments, the control module is reused as a controller of a vehicle computer.

[0098] When the display device provided by the embodiment of the present disclosure is set in a vehicle, the controller of the vehicle computer can be reused as the control module of the display device. When the display device is used as a vehicle display screen, it mainly displays the status of the vehicle, and the user can control the relevant functions and parameters of the vehicle through the display device, which all need to be controlled by the controller of the vehicle computer. Therefore, the controller of the vehicle computer can also be used to control the thermal interaction module in the display device to adjust the temperature of the display panel. When the temperature sensor senses the temperature of the display panel and transmits it to the controller of the vehicle computer, the controller of the vehicle computer determines the temperature change of the display panel, and then decides whether to control the thermal interaction module to adjust the temperature of the display panel, and how to adjust the temperature of the display panel. It can not only meet the requirements of adjusting the temperature of the display panel and reduce the color deviation of the display panel, but also reduce the hardware structure and reduce costs.

[0099] The present disclosure also provides a method for controlling a display device, which is applicable to any of the above-mentioned display devices. Fig.16 A flow chart of a control method of a display device provided in an embodiment of the present disclosure, referring to Fig.16 , the control method includes S110-S120:

[0100] S110: Obtain the temperature of the display panel.

[0101] The temperature of the display panel is affected by the ambient temperature and its own light emission. For example, if the ambient temperature rises, the temperature of the display panel will also rise, and if the ambient temperature drops, the temperature of the display panel will also drop; or if the display panel emits too much light, the temperature will also rise. The white balance and gamma calibrated at room temperature will deviate from the indicators at higher or lower temperatures, causing color cast on the display panel. To avoid color cast on the display panel, the temperature of the display panel can be obtained, and how to reduce the color cast of the display panel can be determined based on the temperature change of the display panel. By way of example, at least one temperature sensor can be provided on the display device, and the temperature of the display panel can be sensed in real time by the temperature sensor to understand the temperature change of the display panel.

[0102] S120 . Control the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel.

[0103] When the display panel is affected by the environment or its own light emission, resulting in a higher or lower temperature, which exceeds the preset stable temperature range, it can be considered that the current display panel is prone to color deviation. Therefore, according to the temperature of the display panel, the thermal interaction module can be controlled to adjust the temperature of the display panel, and the temperature of the display panel can be adjusted to within the preset stable temperature range, thereby reducing the color deviation problem caused by the temperature change of the display panel. Among them, when the thermal interaction module adjusts the temperature of the display panel, the display panel can be heated or dissipated (or cooled) according to actual conditions. For example, if the temperature of the display panel is too high, the thermal interaction module is controlled to dissipate heat or cool to lower the temperature of the display panel; if the temperature of the display panel is too low, the thermal interaction module is controlled to heat to increase the temperature of the display panel, thereby achieving adjustment of different temperature conditions and reducing the color deviation caused by the influence of the temperature of the display panel.

[0104] In some embodiments, according to the temperature of the display panel, controlling the thermal interaction module to adjust the temperature of the display panel includes:

[0105] Controlling the thermal interaction module to dissipate heat from the display panel when the temperature of the display panel is greater than or equal to a first preset temperature threshold, or controlling the thermal interaction module to heat the display panel when the temperature of the display panel is less than or equal to a second preset temperature threshold;

[0106] The first preset temperature threshold is greater than the second preset temperature threshold.

[0107] Specifically, a first preset temperature threshold and a second preset temperature threshold are provided, and the first preset temperature threshold is greater than the second preset temperature threshold. When the thermal interaction module adjusts the temperature of the display module, it is necessary to obtain the temperature of the display panel. When the temperature of the display panel is greater than or equal to the first preset temperature threshold, it can be considered that the temperature of the current display panel is too high and color deviation is prone to occur. At this time, the thermal interaction module can be controlled to dissipate heat (cool) to the display panel to reduce the temperature of the display panel, thereby reducing the possibility of color deviation. When the temperature of the display panel is less than or equal to the second preset temperature threshold, it can be considered that the temperature of the current display panel is too low and color deviation is also prone to occur. The thermal interaction module can be controlled to heat the display panel to increase the temperature of the display panel, thereby reducing the possibility of color deviation. Reduce the color deviation of the display panel caused by the influence of temperature changes caused by changes in ambient temperature or self-luminescence, and improve the display effect of the display panel.

[0108] For example, Fig.17 A flow chart of another method for controlling a display device provided in an embodiment of the present disclosure is provided. Fig.17 , introducing a first preset temperature threshold and a second preset temperature threshold, the control method of the display device includes:

[0109] S110: Obtain the temperature of the display panel.

[0110] S200, determining whether the temperature of the display panel is within a preset temperature range; if so, executing S210, otherwise executing S220.

[0111] S210, turning off the thermal interaction module.

[0112] S220: Start the thermal interaction module.

[0113] S121. Determine whether the temperature of the display panel is greater than or equal to a first preset temperature threshold.

[0114] S122, controlling the thermal interaction module to dissipate heat from the display panel.

[0115] S123: Determine whether the temperature of the display panel is less than or equal to a second preset temperature threshold.

[0116] S124: Control the thermal interaction module to heat the display panel.

[0117] The first preset temperature threshold is greater than the second preset temperature threshold.

[0118] In some embodiments, the first preset temperature threshold is 60 degrees, and the second preset temperature threshold is 20 degrees.

[0119] For example, when the temperature of the display panel is higher than 60 degrees, it is considered that the temperature of the display panel is too high and color deviation is likely to occur, and the thermal interaction module needs to be controlled to dissipate heat (cool) on the display panel; when the temperature of the display panel is lower than 20 degrees, it is considered that the temperature of the display panel is too low and color deviation is likely to occur, and the thermal interaction module needs to be controlled to heat the display panel. That is, when the temperature of the display panel is between 20 degrees and 60 degrees, there is no need to control the display panel, and the display panel can adjust the color brightness by itself, and the possibility of color deviation is low.

[0120] It should be noted that the above is only a feasible temperature threshold provided by the embodiment of the present disclosure, and other temperatures can also be selected as the first preset temperature threshold and the second preset temperature threshold according to actual needs. The embodiment of the present disclosure takes into account the external environment temperature and the temperature of the display panel itself caused by the light emission, and sets the temperature range of the display panel that does not need to be adjusted to between 20 degrees and 60 degrees. Setting this wider range can avoid frequent adjustments to the temperature of the display panel. For example, when set at 20 degrees to 30 degrees, the display panel can easily reach the temperature threshold. When the temperature is high, it is necessary to frequently control the thermal interaction module to cool the display panel, affecting the use effect of the display device. However, the embodiment of the present disclosure does not exclude setting the normal temperature range to 20 degrees to 30 degrees, and it is also necessary to take into account the actual application scenario, which can be set according to actual needs.

[0121] In some embodiments, it also includes:

[0122] Based on the fact that the temperature of the display panel is greater than the second preset temperature threshold and less than the first preset temperature threshold, the display panel is driven according to a gamma curve corresponding to the temperature of the display panel.

[0123] Exemplarily, when the temperature of the display panel is between the second preset temperature threshold and the first preset temperature threshold, it means that the temperature of the current display panel meets the surface temperature of the display panel during normal operation during the design process of the display panel. If the temperature of the display panel changes, the brightness and chromaticity of the display panel deviate due to the influence of temperature. At this time, the display panel can be driven according to the gamma curve corresponding to the temperature of the display panel, and the gamma curve is used to compensate for the color deviation caused by the small temperature change of the display panel. The embodiment of the present disclosure limits the temperature of the display panel between the second preset temperature threshold and the first preset temperature threshold, and multiple gamma curves are stored in the register of the driver chip. The stored gamma curve can compensate for the color deviation caused by the temperature change of the display panel when the temperature of the display panel is within this range. Among them, the gamma curve corresponding to the temperature of the display panel is a gamma curve debugged under normal temperature environment when the display panel is pre-designed.

[0124] In some embodiments, the chromaticity and brightness differences between display panels corresponding to adjacent gamma curves satisfy ΔEab<1.

[0125] Exemplarily, the gamma curve can be used to compensate for the chromaticity and brightness deviation of the display panel caused by temperature changes. When setting the gamma curve, the chromaticity and brightness difference of the display panel corresponding to the adjacent gamma curves should satisfy △Eab<1. When the adjacent gamma curves are within this range, the temperature of the display panel changes by about 1 degree, and the temperature interval is small. When different gamma curves are used to drive the display panel, the driving current of the light-emitting element in the display panel changes little, so the brightness of the light-emitting element changes little and cannot be recognized by the human eye. In this way, the changes in brightness and chromaticity can be controlled within a range that is not recognizable to the human eye, avoiding jitter of the display panel image when using the gamma curve for compensation. It should be noted that the gamma curve can be pre-stored in the register of the driver chip, and the storage location can be selected according to actual needs.

[0126] In some embodiments, before obtaining the temperature of the display panel, the method includes:

[0127] Determine to obtain a vehicle start signal, a door open signal, a key sensing signal, an air conditioning start signal, and any one of the preset time.

[0128] The display device provided by the embodiment of the present disclosure can be used in a vehicle. As a display screen of the vehicle, the display screen of the vehicle is more easily affected by the external ambient temperature. In combination with the actual application scenario, the temperature of the temperature sensor can be pre-started to adjust the temperature of the display panel in advance before the user uses the display panel, thereby improving the color deviation of the display panel and reducing the user's waiting time.

[0129] For example, it is determined to obtain the vehicle start signal. After the vehicle is started, the display panel will also start. In order to avoid color deviation after the display panel is turned on, the temperature of the display panel can be obtained and the display panel can be adjusted in advance. Optionally, it is determined to obtain the door opening signal or the key sensing signal, both of which represent that the user is approaching the vehicle and is about to start the vehicle. After the vehicle is started, the display panel will also work. In order to avoid color deviation after the display panel is turned on, the temperature of the display panel can be obtained and the display panel can be adjusted in advance. Optionally, the air-conditioning start signal is determined, indicating that the current ambient temperature needs to be adjusted, and the ambient temperature will directly affect the temperature of the display panel. In order to avoid color deviation of the display panel due to the influence of the ambient temperature, the temperature of the display panel can be obtained. Alternatively, the display panel can be sensed in advance. When the preset time is reached, the temperature of the display panel is obtained to determine whether the temperature of the display panel needs to be adjusted.

[0130] It should be noted that the temperature of the display panel can be obtained if any of the above conditions are met, and the above signals can be sent by the vehicle computer to the control module, which starts the temperature sensor module. The above methods are all for detecting the temperature of the display panel in advance, and adjusting the temperature of the display panel when the user uses the display panel to avoid the temperature of the display panel being affected by the ambient temperature or the light emitted by the display panel itself, which in turn causes obvious color deviation when the display panel is started.

[0131] For example, Fig.18 A flow chart of another method for controlling a display device provided in an embodiment of the present disclosure is provided. Fig.18 Taking the door opening signal as an example, the control method includes:

[0132] S310: Determine a door opening signal.

[0133] S320, the display panel and vehicle computer linkage system are automatically started.

[0134] S110: Obtain the temperature of the display panel.

[0135] S120 . Control the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel.

[0136] When the user opens the car door, the vehicle computer determines the door opening signal, the vehicle computer and the display panel linkage system are started, and the vehicle computer sends a control signal to the control module of the display panel to start the temperature sensor. Then the temperature of the display panel is obtained, and the thermal interaction module is controlled to adjust the temperature of the display panel according to the temperature of the display panel to stabilize the temperature of the display panel to avoid obvious color deviation of the display panel when the display panel is turned on due to excessively high or low ambient temperature.

[0137] Fig.19 A flow chart of another method for controlling a display device provided in an embodiment of the present disclosure is provided. Fig.19 Taking the key sensing signal as an example, the control method includes:

[0138] S311, determining a key sensing signal.

[0139] S320, the display panel and vehicle computer linkage system are automatically started.

[0140] S110: Obtain the temperature of the display panel.

[0141] S120 . Control the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel.

[0142] When the user approaches the vehicle, the vehicle computer determines the key signal, the vehicle computer and the display panel linkage system are started, and the vehicle computer sends a control signal to the control module of the display panel to start the temperature sensor. Then the temperature of the display panel is obtained, and the thermal interaction module is controlled to adjust the temperature of the display panel according to the temperature of the display panel to stabilize the temperature of the display panel to avoid obvious color deviation of the display panel when the display panel is turned on due to excessively high or low ambient temperature.

[0143] In some embodiments, the display device includes multiple temperature sensors; the thermal interaction module includes multiple thermal interaction sub-modules, and each thermal interaction sub-module is provided with at least one temperature sensor in a corresponding area; and the multiple thermal interaction sub-modules are electrically connected to the control module.

[0144] Controlling the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel includes: controlling the thermal interaction submodule to adjust the temperature of the display panel according to the temperature detected by the temperature sensor of the corresponding area of ​​the thermal interaction submodule.

[0145] Exemplarily, the display device includes a plurality of temperature sensors, and the thermal interaction module also includes a plurality of thermal interaction submodules. Each thermal interaction submodule is provided with at least one temperature sensor in a corresponding area, and the temperature sensor in the area is used to sense the temperature of the display panel in the corresponding area. When the temperature sensor in a certain area senses that the temperature of the display panel is high or low, the control module controls the thermal interaction submodule in the corresponding area to adjust the temperature of the display panel.

[0146] For example, continue to refer to Fig. 9, if the temperature sensor 20 in the area corresponding to the first thermal interaction submodule 301 senses that the temperature of the area of ​​the display panel 10 is high, while the temperature of the display panel 10 in the other three areas is stable, there is no need to adjust the temperature of the entire display panel 10, and the control module 40 will control the first thermal interaction submodule 301 to dissipate heat in the area of ​​the display panel 10, reduce the temperature of this part of the display panel 10, and realize regionalized local control of the display panel. If the temperature sensor 20 in the area corresponding to the second thermal interaction submodule 301 senses that the temperature of the area of ​​the display panel 10 is high, and the temperature sensor 20 in the area corresponding to the fourth thermal interaction submodule 301 senses that the temperature of the area of ​​the display panel 10 is low, at this time, the control module 40 will control the second thermal interaction submodule 301 to dissipate heat in the area of ​​the display panel 10, and control the fourth thermal interaction submodule 301 to heat the area of ​​the display panel 10. In this way, the display panel is divided into multiple areas, and the temperature of different areas is adjusted in a targeted manner, which can not only realize the precise adjustment of the temperature of different areas of the display panel 10, but also reduce the overall power consumption.

[0147] In some embodiments, at least one first-type temperature sensor and at least one second-type temperature sensor are disposed in the corresponding area of ​​the thermal interaction submodule.

[0148] Getting the temperature of the display panel includes:

[0149] The detected temperature of the first type of temperature sensor in the corresponding area of ​​each thermal interaction submodule is obtained.

[0150] Based on the temperature difference detected by the first type of temperature sensors in the areas corresponding to different thermal interaction submodules being greater than the temperature difference threshold, the second type of temperature sensor corresponding to the same thermal interaction submodule as the first type of temperature sensor is controlled to obtain the temperature of the display panel.

[0151] Exemplarily, when sensing the temperature of the display panel, the first type of temperature sensor is first used to sense the display panel to obtain the detected temperature of the first type of temperature sensor in the corresponding area of ​​each thermal interaction submodule. If the difference in the detected temperatures of the first type of temperature sensors in the corresponding areas of different thermal interaction submodules is greater than the temperature difference threshold, in order to avoid deviation in the detection of the first type of temperature sensor, the second type of temperature sensor corresponding to the same thermal interaction submodule as the first type of temperature sensor is controlled to obtain the temperature of the display panel.

[0152] For example, continue to refer to Fig.13, the first type of temperature sensor 21 in the corresponding area of ​​each of the first thermal interaction submodule 3011 to the fourth thermal interaction submodule 3014 senses the temperature of the display panel 10 in the corresponding area, and obtains temperatures T1, T2, T3 and T4 respectively. If the temperature difference between temperature T1 and temperature T4 is greater than the temperature difference threshold, there is reason to suspect that there are problems with the first type of temperature sensor 21 in the corresponding area of ​​the first thermal interaction submodule 3011 and the first type of temperature sensor 21 in the corresponding area of ​​the second thermal interaction submodule 3014, resulting in a large temperature error. Therefore, the control module 40 controls the second type of temperature sensor 22 in the corresponding area of ​​the first thermal interaction submodule 3011 and the second type of temperature sensor 22 in the corresponding area of ​​the second thermal interaction submodule 3014 to obtain the temperature of the display panel 10, and obtain temperature T1' and temperature T4' to determine whether the detection data of the first type of temperature sensor 21 is accurate.

[0153] Therefore, the second type of temperature sensor does not need to be started for a long time. It only needs to be started when the temperature difference detected by the first type of temperature sensor in the corresponding area of ​​different thermal interaction submodules is greater than the temperature difference threshold. This can reduce the power consumption of the second type of temperature sensor 22 to a certain extent and avoid deviations in temperature detection. Among them, the first type of temperature sensor and the second type of temperature sensor are only used to distinguish the main functions of the two types of temperature sensors, and do not represent the models of the two types of temperature sensors. The first type of temperature sensor is mainly used to sense temperature, and the second type of temperature sensor is mainly used to verify whether the temperature is accurate.

[0154] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0155] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display device, characterized in that: include: Display panel; at least one temperature sensor, configured to sense the temperature of the display panel; A thermal interaction module located on the backlight side of the display panel; A control module is electrically connected to the thermal interaction module, and is used to control the thermal interaction module to adjust the temperature of the display panel according to the temperature of the display panel.

2. The display device according to claim 1, characterized in that The temperature sensor is integrated in the display panel.

3. The display device according to claim 2, characterized in that: The temperature sensor is located between the driving circuit layer and the substrate of the display panel.

4. The display device according to claim 2, characterized in that: The temperature sensor is in a curved wiring shape and at least overlaps with a plurality of pixels of different colors of the display panel.

5. The display device according to claim 1, characterized in that The temperature sensor is disposed on the backlight side of the display panel.

6. The display device according to claim 1, characterized in that: A heat-spreading layer is arranged between the display panel and the heat interaction module.

7. The display device according to claim 6, characterized in that: The temperature sensor is located between the heat-spreading layer and the thermal interaction module.

8. The display device according to claim 7, characterized in that: The thermal interaction module is provided with a first groove structure, and the temperature sensor is located in the first groove structure.

9. The display device according to claim 6, characterized in that: The temperature sensor is located between the heat-spreading layer and the display panel.

10. The display device according to claim 9, characterized in that: The heat-dissipating layer is provided with a second groove structure, and the temperature sensor is located in the second groove structure.

11. The display device according to claim 1, characterized in that: The thermal interaction module includes a heating module and a heat dissipation module; the heat dissipation module is located at a side of the heating module away from the display panel.

12. The display device according to claim 11, characterized in that: The heat dissipation module includes a refrigeration part and / or a heat dissipation fin part.

13. The display device according to claim 12, characterized in that: The refrigeration unit includes a semiconductor refrigeration sheet.

14. The display device according to claim 12, characterized in that: The heat dissipation fin portion is located at a side of the refrigeration portion away from the display panel.

15. The display device according to claim 1, characterized in that: The thermal interaction module includes an air duct structure; the air duct structure is connected to the air duct of the vehicle air conditioner.

16. The display device according to claim 1, characterized in that: The display device includes a plurality of temperature sensors; the thermal interaction module includes a plurality of thermal interaction sub-modules, and each thermal interaction sub-module is provided with at least one temperature sensor in a corresponding area; and the plurality of thermal interaction sub-modules are electrically connected to the control module.

17. The display device according to any one of claims 1 to 16, characterized in that: A plurality of the temperature sensors are included, and the plurality of the temperature sensors are evenly distributed on the display panel.

18. The display device according to any one of claims 1 to 16, characterized in that: comprising a plurality of said temperature sensors; The display device includes a first area and a second area, and a density of the temperature sensors arranged in the first area is greater than a density of the temperature sensors arranged in the second area.

19. The display device according to claim 18, characterized in that The distance between the adjacent temperature sensors in the first region is smaller than the distance between the adjacent temperature sensors in the second region.

20. The display device according to claim 16, characterized in that At least one first-type temperature sensor and at least one second-type temperature sensor are provided in the corresponding area of ​​the thermal interaction submodule; The control module is used to control the second-type temperature sensor corresponding to the same thermal interaction submodule as the first-type temperature sensor to obtain the temperature of the display panel based on the difference in detected temperatures of the first-type temperature sensors in the corresponding areas of different thermal interaction submodules being greater than a temperature difference threshold.

21. The display device according to claim 1, characterized in that It also includes a display driver circuit board, which is electrically connected to the display panel, and the control module is integrated on the display driver circuit board.

22. The display device according to claim 1, characterized in that The control module is reused as a controller of the vehicle computer.

23. A method for controlling a display device, characterized in that: Applicable to the display device according to any one of claims 1 to 22, the method comprising: Acquiring the temperature of the display panel; According to the temperature of the display panel, the thermal interaction module is controlled to adjust the temperature of the display panel.

24. The control method according to claim 23, characterized in that: According to the temperature of the display panel, controlling the thermal interaction module to adjust the temperature of the display panel includes: According to the temperature of the display panel being greater than or equal to a first preset temperature threshold, controlling the thermal interaction module to dissipate heat from the display panel, or according to the temperature of the display panel being less than or equal to a second preset temperature threshold, controlling the thermal interaction module to heat the display panel; The first preset temperature threshold is greater than the second preset temperature threshold.

25. The control method according to claim 24, characterized in that: The first preset temperature threshold is 60 degrees, and the second preset temperature threshold is 20 degrees.

26. The control method according to claim 23, characterized in that: Also includes: Based on the fact that the temperature of the display panel is greater than the second preset temperature threshold and less than the first preset temperature threshold, the display panel is driven according to a gamma curve corresponding to the temperature of the display panel.

27. The control method according to claim 26, characterized in that: The chromaticity and brightness differences of the display panels corresponding to the adjacent gamma curves satisfy ΔEab<1.

28. The control method according to claim 23, characterized in that: Before obtaining the temperature of the display panel, the method includes: Determine to obtain a vehicle start signal, a door open signal, a key sensing signal, an air conditioning start signal, and any one of the preset time.

29. The control method according to claim 23, characterized in that: The display device includes a plurality of temperature sensors; the thermal interaction module includes a plurality of thermal interaction sub-modules, and each thermal interaction sub-module is provided with at least one temperature sensor in a corresponding area; and the plurality of thermal interaction sub-modules are electrically connected to the control module; According to the temperature of the display panel, controlling the thermal interaction module to adjust the temperature of the display panel includes: The thermal interaction submodule is controlled to adjust the temperature of the display panel according to the temperature detected by the temperature sensor in the area corresponding to the thermal interaction submodule.

30. The control method according to claim 29, characterized in that: At least one first-type temperature sensor and at least one second-type temperature sensor are provided in the corresponding area of ​​the thermal interaction submodule; The obtaining the temperature of the display panel comprises: Acquire the detected temperature of the first type of temperature sensor in the area corresponding to each of the thermal interaction submodules; Based on the difference in detected temperatures of the first type of temperature sensors in the areas corresponding to different thermal interaction submodules being greater than a temperature difference threshold, the second type of temperature sensor corresponding to the same thermal interaction submodule as the first type of temperature sensor is controlled to obtain the temperature of the display panel.

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