A display panel, temperature control method and related device

Abstract

This application discloses a display panel, a temperature control method, and related equipment. Relating to the field of display panels, the display panel includes: a display substrate; a heating layer disposed on one side of the display substrate; the heating layer includes at least one metal layer, and the at least one metal layer is provided with heating electrodes and heating control signal lines. The heating electrodes are electrically connected to the heating control signal lines, and the heating electrodes are used to generate heat under the action of a heating signal transmitted by the heating control signal lines.

Description

Technical Field

[0001] This specification relates to the field of display panels, and more specifically, this application relates to a display panel, a temperature control method, and related equipment. Background Technology

[0002] With the increasing level of intelligence, the application scenarios of display panels are becoming more and more diverse, serving as screens for mobile terminals, vehicles, and other transportation tools. However, current display panel technologies cannot effectively regulate their temperature through active intervention. This inability to effectively regulate temperature can lead to the following defects: Display panels contain numerous electronic components, and uneven heating between these components can cause imaging defects. Operating in cold regions may cause the display panel to frost or fog. Furthermore, if the display panel is a flexible screen, low temperatures may affect its lifespan. Summary of the Invention

[0003] The summary section introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This summary section is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0004] In a first aspect, this application proposes a display panel, comprising:

[0005] Display substrate;

[0006] A heating layer is disposed on one side of the aforementioned display substrate;

[0007] The heating layer includes at least one metal layer, and the at least one metal layer is provided with a heating electrode and a heating control signal line. The heating electrode is electrically connected to the heating control signal line and is used to generate heat under the action of the heating signal transmitted by the heating control signal line.

[0008] In one implementation,

[0009] The heating electrodes are arranged in an array, and the orthographic projections of different heating electrodes on the display substrate do not overlap.

[0010] The aforementioned display substrate includes a plurality of sub-pixels arranged in an array, and the orthographic projection of one of the aforementioned heating electrodes on the aforementioned display substrate covers the plurality of the aforementioned sub-pixels.

[0011] In one implementation,

[0012] The heating layer is sequentially stacked on one side of the display substrate, consisting of a first metal layer, a first insulating layer, and a second metal layer. The first insulating layer is disposed between the first metal layer and the second metal layer, and the first insulating layer has an insulating layer through-hole.

[0013] The first metal layer is provided with a plurality of first heating wires, and the second metal layer is provided with at least a plurality of second heating wires. One end of the first heating wire and one end of the second heating wire are electrically connected through the through-hole of the insulating layer. Each set of electrically connected first heating wires and second heating wires is used to heat a portion of the display area of ​​the display panel.

[0014] In one embodiment, at least one of the first heating wire and the second heating wire is configured as a coiled wire, with one end of the coiled wire located at the center of the coiled wire and the other end located at the edge of the coiled wire, and the insulating through hole is provided in the central region of the coiled wire.

[0015] In one embodiment, the heating wires are arranged in a spiral pattern near the display substrate side, and the heating wires include a first heating wire and a second heating wire.

[0016] In one embodiment, a second insulating layer is disposed on the side of the first metal layer away from the first insulating layer, and a third insulating layer is disposed on the side of the second metal layer away from the first insulating layer. The second insulating layer is disposed on the side away from the display substrate and is used to isolate and protect it from the external environment. The third insulating layer is disposed on the side close to the display substrate and is used to isolate the heating layer and electronic devices on the display substrate side.

[0017] In one embodiment, the heating layer is disposed on the display side of the display substrate; and / or,

[0018] The heating layer is disposed on the side of the display substrate opposite to the display side.

[0019] In one implementation, it further includes:

[0020] A backplate support is disposed on the side of the display substrate away from the display side;

[0021] The aforementioned display substrate includes a substrate, a driving layer, a light-emitting layer, and an encapsulation layer. The driving layer, the light-emitting layer, and the encapsulation layer are stacked sequentially on the substrate. The driving layer is provided with a pixel driving circuit, and the light-emitting layer is provided with a light-emitting device. The pixel driving circuit is electrically connected to the light-emitting device.

[0022] The heating layer is disposed between the driving layer and the substrate; and / or,

[0023] The aforementioned heating layer is disposed between the aforementioned substrate and the aforementioned backplate support; and / or,

[0024] The heating layer is disposed on the side of the backplate support away from the display substrate.

[0025] In one embodiment, the display panel further includes a shielding layer disposed between the display substrate and the heating layer, the shielding layer being grounded, and the shielding layer being used to shield the heating layer from signal interference.

[0026] In one embodiment, the display panel includes a temperature sensing component, which is disposed on the side of the back panel support opposite to the display direction.

[0027] In one embodiment, the temperature sensing component includes a plurality of temperature sensors, each of which overlaps with at least one of the heating electrodes on the orthographic projection of the display substrate.

[0028] Secondly, this application also proposes a temperature control method for the display panel described in the first aspect, comprising:

[0029] Generate temperature control commands, which include heating signals and stop heating signals;

[0030] The temperature control command is sent to the display panel to cause the heating layer of the display panel to heat up under the action of the heating signal, or to stop heating up under the action of the stop heating signal.

[0031] In one embodiment, when the heating layer includes a plurality of heating electrodes arranged in an array, the method further includes:

[0032] The actual temperature distribution information of the display panel is obtained through the temperature sensing component;

[0033] Based on the above-mentioned actual temperature distribution information and the above-mentioned target temperature distribution information, a temperature control command is generated; and / or,

[0034] Obtain the operating condition information of the aforementioned display panel, including operating voltage, operating circuit, operating time, and ambient temperature;

[0035] Based on the above operating condition information and the mapping relationship between operating condition temperature, the above actual temperature distribution information is determined.

[0036] Temperature control commands are generated based on the actual temperature distribution information and the target temperature distribution information.

[0037] Thirdly, this application also proposes a temperature control module for implementing the temperature control method as described in any of the second aspects.

[0038] Fourthly, this application also proposes a display device comprising a display panel as described in any one of the first aspects, and / or a temperature control module as described in any one of the third aspects.

[0039] In summary, the display panel proposed in this application includes: a display substrate; a heating layer disposed on one side of the display substrate; the heating layer includes at least one metal layer, and the at least one metal layer is provided with heating electrodes and heating control signal lines. The heating electrodes are electrically connected to the heating control signal lines, and the heating electrodes are used to generate heat under the action of a heating signal transmitted by the heating control signal lines. The display panel proposed in this application, by adding a heating layer to the display panel, can achieve heating of the display panel. The heating signal lines connected to the heating electrodes can achieve precise control of the heating effect of the heating electrodes. By adjusting the temperature of the display substrate, the temperature of different areas of the display substrate can be kept approximately uniform, improving image display defects or uneven display caused by uneven temperature. Adding a heating layer can heat the screen surface, enabling it to defog in cold regions. Furthermore, adding a heating layer can preheat the screen, improving the folding life of the foldable screen.

[0040] The display panel, temperature control method, and related equipment proposed in the embodiments of this application, as well as other advantages, objectives, and features of this application, will be partly apparent from the following description and partly understood by those skilled in the art through study and practice of this application. Attached Figure Description

[0041] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit this specification. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0042] Figure 1 This is a structural schematic diagram of a display panel provided in an embodiment of this application;

[0043] Figure 2 A structural schematic diagram of the metal layer of a display panel provided in an embodiment of this application;

[0044] Figure 3 A structural schematic diagram of the metal layer in another display panel provided in an embodiment of this application;

[0045] Figure 4A structural schematic diagram of a heating layer in a display panel provided in an embodiment of this application;

[0046] Figure 5 A schematic diagram of the orthographic projection of the first heating wire and the second heating wire in the heating layer of a display panel provided in an embodiment of this application onto the display substrate;

[0047] Figure 6 A schematic diagram of the orthographic projection of the first heating wire and the second heating wire in the heating layer of another display panel provided in an embodiment of this application onto the display substrate;

[0048] Figure 7 A structural schematic diagram of the heating layer in another display panel provided in an embodiment of this application;

[0049] Figure 8 This is a structural schematic diagram of another display panel provided in an embodiment of this application;

[0050] Figure 9 This is a structural schematic diagram of another display panel provided in an embodiment of this application;

[0051] Figure 10 This is a structural schematic diagram of another display panel provided in an embodiment of this application;

[0052] Figure 11 A structural schematic diagram of a display panel provided for an embodiment of this application;

[0053] Figure 12 This is a flowchart illustrating a control method for a display panel provided in an embodiment of this application.

[0054] Figure 13 This is a structural schematic diagram of a temperature control module provided in an embodiment of this application;

[0055] Figure 14 This is a structural schematic diagram of a display device provided in an embodiment of this application;

[0056] Figures 1 to 14 The correspondence between component names and reference numerals in the attached drawings is as follows:

[0057] 100 Display panel, 101 Heating layer, 1011 Heating electrode, 1012 Heating control signal line, 10111 First heating line, 10112 Second heating line, 10113 Short circuit connection line, 10114 Insulating via, 1013 First metal layer, 1014 First insulating layer, 1015 Second metal layer, 1016 Second insulating layer, 1017 Third insulating layer, 102 Display substrate, 1021 Encapsulation layer, 1022 Light-emitting layer, 1023 Driving layer, 1024 Substrate, 103 Backplane support, 104 Shielding layer, 105 Temperature sensing component, 1051 Temperature sensor. Detailed Implementation

[0058] The terms "first," "second," "third," "fourth," etc. (if present) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus. The technical solutions of the embodiments of this application will now be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them.

[0059] For this purpose, this application proposes a display panel 100, please refer to... Figure 1 This is a structural schematic diagram of a display panel 100 provided in an embodiment of this application, which may specifically include:

[0060] Display substrate 102;

[0061] A heating layer 101 is disposed on one side of the display substrate 102;

[0062] The heating layer 101 includes at least one metal layer, and the at least one metal layer is provided with a heating electrode 1011 and a heating control signal line 1012. The heating electrode 1011 is electrically connected to the heating control signal line 1012, and the heating electrode 1011 is used to generate heat under the action of the heating signal transmitted by the heating control signal line 1012.

[0063] For example, the display substrate 102 is used to display an image. The heating layer 101 is stacked with the display substrate 102 in the thickness direction of the display panel 100. The heating layer 101 can be disposed on the side of the display substrate 102 closer to the display side S, or on the side of the display substrate 102 away from the display side S. The heating layer can also be disposed between two layers in the display substrate 102. It should be noted that if the heating layer 101 is disposed on the side of the display substrate closer to the display side, the heating layer 101 must maintain transparency to avoid affecting the imaging effect.

[0064] The heating layer 101 includes at least one metal layer, which is used to transmit electrical energy and generate a heating effect. These metal layers may be made of conductive materials and generate heat through the thermal effect of electric current. Figure 2 The diagram shown is a structural schematic of the metal layer of a display panel 100 according to an embodiment of this application. At least one layer of the metal layer includes a heating electrode 1011. The heating electrode 1011 is used to generate a heating effect by transmitting a heating signal through a heating control signal line 1012. The heating electrode 1011 is electrically connected to the heating control signal line 1012. The heating control signal line 1012 transmits the heating signal. The heating electrode 1011 heats, stops heating, or adjusts the heating power based on the heating signal to achieve precise control of the heating effect.

[0065] It should be noted that the heating electrode 1011 can be some electronic device with heating function, such as a resistor sheet, a resistor wire, a metal electrode block, etc.

[0066] Heating the display panel 100 via the heating layer 101 raises its temperature, preventing frost and fogging in outdoor or cold conditions. It also improves image display defects or unevenness caused by temperature variations and preheats the screen, extending the folding lifespan of the foldable screen.

[0067] In summary, the display panel 100 proposed in this application embodiment, by adding a heating layer 101, can heat the display panel 100. The heating effect of the heating electrode 1011 can be precisely controlled via a heating signal line connected to the heating electrode 1011. By adjusting the temperature of the display substrate 102, the temperature of different areas of the display substrate 102 can be kept approximately uniform, improving image display defects or uneven display caused by temperature inconsistencies. Adding the heating layer 101 can heat the screen surface, enabling it to defog in cold regions. Furthermore, adding the heating layer 101 can preheat the screen, improving the folding life of the foldable screen.

[0068] In one embodiment, the heating electrodes 1011 are arranged in an array, and the different heating electrodes 1011 do not overlap when projected onto the display substrate 102.

[0069] The aforementioned display substrate 102 includes a plurality of sub-pixels arranged in an array, and the orthographic projection of one of the aforementioned heating electrodes 1011 on the aforementioned display substrate 102 covers the plurality of the aforementioned sub-pixels.

[0070] For example, such as Figure 3 The diagram shows a structural schematic of the heating layer 101 of another display panel 100 according to an embodiment of this application. The heating layer 101 includes a plurality of arrayed heating electrodes 1011, which can be arranged on the entire heating layer 101. The electrodes are typically arranged at a uniform spacing, and the size of the heating electrodes 1011 can be set to 5mm × 5mm. Their positions are precisely designed to ensure that there is no overlap between different heating electrodes 1011. This arrangement allows each heating electrode 1011 to be independently controlled and manipulated, thereby achieving precise local heating control. The sub-pixels on the display substrate 102 are also arranged in a plurality of arrays.

[0071] Subpixels are the basic pixel units used to create the entire displayed image. The orthographic projection of each heating electrode 1011 onto the display substrate 102 can cover multiple subpixels. Since the orthographic projection of each heating electrode 1011 covers multiple subpixels, by adjusting the heating power of different heating electrodes 1011 to compensate for the uneven heat generation in different areas of the display substrate 102, the actual temperature distribution of the display substrate 102 can be made more uniform under the active heating of the heating electrodes 1011, without significant temperature differences, thus avoiding imaging defects caused by uneven temperature. Because the mapping between heating electrodes 1011 and subpixels is a one-to-many relationship, this means that more precise local temperature control can be achieved, which is very useful for applications that require precise temperature adjustment in specific areas. Since precise local heating can be achieved by controlling different heating electrodes 1011, energy waste can be reduced, and only the areas that need to be heated are activated, which can reduce overall energy consumption.

[0072] In summary, the structure of multiple arrayed heating electrodes 1011 and sub-pixels can achieve more uniform heating distribution, more precise local temperature control, and higher energy efficiency.

[0073] In one embodiment, the heating layer 101 includes a first metal layer 1013, a first insulating layer 1014 and a second metal layer 1015 sequentially stacked on one side of the display substrate. The first insulating layer 1014 is disposed between the first metal layer 1013 and the second metal layer 1015, and the first insulating layer 1014 is provided with an insulating layer through hole.

[0074] The first metal layer 1013 is provided with a plurality of first heating wires 10111, and the second metal layer 1015 is provided with a plurality of second heating wires 10112. One end of the first heating wire 10111 and one end of the second heating wire 10112 are electrically connected through the insulating layer through-hole. Each set of electrically connected first heating wires 10111 and second heating wires 10112 is used to heat a portion of the display area of ​​the display panel 100.

[0075] For example, such as Figure 4 The diagram shown is a structural schematic of the heating layer 101 of a display panel 100 according to an embodiment of this application. The heating layer 101 includes a first metal layer 1013 and a second metal layer 1015. The first metal layer 1013 has a plurality of first heating wires 10111, and the second metal layer 1015 has a plurality of second heating wires 10112. The two metal layers are insulated and separated by a first insulating layer 1014. An insulating through hole 10114 is provided in the insulating layer, and an insulating connecting wire can be inserted into the insulating through hole 10114 to achieve electrical connection between the first heating wires 10111 and the second heating wires 10112. By connecting the two ends of the first heating wires 10111 and the second heating wires 10112 that are not electrically connected to the heating control signal line 1012, the temperature control of the display panel 100 by the first heating wires 10111 and the second heating wires can be realized.

[0076] It should be noted that the first heating line 10111 and the second heating line 10112 can be heated by three layers of heating wire, namely titanium-aluminum-titanium, or by three layers of heating wire, namely molybdenum-aluminum-molybdenum. The metal layer corresponding to the heating electrode can also be titanium-aluminum-titanium or molybdenum-aluminum-molybdenum. The heating electrode or heating line can be patterned by exposure, development and etching processes.

[0077] In one embodiment, at least one of the first heating wire 10111 and the second heating wire 10112 is configured as a coiled wire, with one end of the coiled wire located at the center of the coiled wire and the other end located at the edge of the coiled wire, and the insulating through hole 10114 is provided in the central region of the coiled wire.

[0078] For example, such as Figure 5 and Figure 6The diagram shows a schematic diagram of the orthographic projection of the first heating line 10111 and the second heating line 10112 in the heating layer 101 of two types of display panels 100 onto the display substrate 102. Figure 5 and Figure 6 An example of a spiral routing for the first heating wire 10111 is given, including but not limited to these two spiral routing methods. This application also includes a second heating wire 10112 that is spiral routing, or both the first heating wire 10111 and the second heating wire 10112 that are spiral routing. Through spiral routing, the insulating through-hole 10114 is disposed in the central region of the spiral routing, increasing the effective length of the heating wire, improving the heating capacity of the heating wire, and facilitating rapid temperature rise of the display substrate 102.

[0079] In one embodiment, heating wires are arranged in a spiral pattern near the display substrate 102, and the heating wires include a first heating wire 10111 and a second heating wire 10112.

[0080] For example, the heating wire includes a first heating wire 10111 and the second heating wire 10112. The heating wire that is close to the side of the display substrate 102 is coiled, which has higher heating efficiency. By bringing the coiled heating wire close to the side of the display substrate 102, the display substrate 102 can be heated efficiently and the temperature of the display substrate 102 can be increased rapidly.

[0081] In one embodiment, a second insulating layer 1016 is disposed on the side of the first metal layer 1013 away from the first insulating layer 1014, and a third insulating layer 1017 is disposed on the side of the second metal layer 1015 away from the first insulating layer 1014. The second insulating layer 1016 is disposed on the side away from the display substrate 102 and is used to isolate and protect it from the external environment. The third insulating layer 1017 is disposed on the side close to the display substrate 102 and is used to isolate the heating layer and electronic devices on the display substrate side.

[0082] For example, such as Figure 7 The diagram shown is a structural schematic of the heating layer 101 of another display panel 100 provided in this embodiment. By adding a second insulating layer 1016 and a third insulating layer 1017 on both sides of the heating layer 101 in the thickness direction, the first metal layer 1013 and the second metal layer 1015 can be effectively protected. At the same time, it can avoid interference with other film layer structures, and can also achieve connection with other film layers through the outer insulating layer.

[0083] In one embodiment, the heating layer 101 is disposed on the display side of the display substrate 102; and / or,

[0084] The heating layer 101 is disposed on the side of the display substrate 102 opposite to the display side.

[0085] For example, Figure 1 An embodiment is provided in which the heating layer 101 is disposed on the display side S of the display substrate 102. Figure 8 This is a structural schematic diagram of another display panel 100 provided in an embodiment of this application, showing another structure in which the heating layer 101 is disposed on the side of the display substrate 102 away from the display side S. It should be noted that if the heating layer 101 is disposed on the side of the display substrate close to the display side, the heating layer 101 must ensure transparency to avoid the heating layer 101 affecting the imaging effect.

[0086] In one implementation, it further includes:

[0087] Backplate bracket 103, the backplate bracket 103 is disposed on the side of the display substrate 102 away from the display side;

[0088] The aforementioned display substrate 102 includes a substrate 1024, a driving layer 1023, a light-emitting layer 1022, and an encapsulation layer 1021. The driving layer 1023, the light-emitting layer 1022, and the encapsulation layer 1021 are stacked sequentially on the substrate 1024. The driving layer 1023 is disposed between the substrate 1024 and the light-emitting layer 1022. The driving layer 1023 is provided with a pixel driving circuit. The light-emitting layer 1022 is provided with a light-emitting device. The pixel driving circuit is electrically connected to the light-emitting device.

[0089] For example, such as Figure 9 The diagram shown is a structural schematic of another display panel 100 provided in this application embodiment. The backplate bracket 103 is located on the back of the display panel 100 and serves to protect and support it. It may include some additional functions, such as heat dissipation structures, connectors, or housings.

[0090] The display substrate 102 is a crucial component of the display panel 100, typically comprising four main layers: a substrate 1024, a driving layer 1023, a light-emitting layer 1022, and an encapsulation layer 1021. The substrate 1024, located at the bottom of the display panel 100, is typically a robust base plate supporting the components of the entire display panel 100. It is usually flat and stable to ensure the stability and durability of the display panel 100. The driving layer 1023, typically located between the substrate 1024 and the light-emitting layer 1022, contains pixel driving circuitry. This pixel driving circuitry controls the brightness and color of each pixel to generate an image. The light-emitting layer 1022, located between the driving layer 1023 and the encapsulation layer 1021, contains light-emitting devices. These light-emitting devices can be LEDs (Light Emitting Diodes) or OLEDs (Organic Light Emitting Diodes), etc., used to generate the brightness and color of the image.

[0091] The encapsulation layer 1021 protects the driving layer 1023 and the light-emitting layer 1022 and provides isolation from the external environment. It typically includes a transparent panel or screen so that the user can see the generated image.

[0092] The pixel driving circuitry on the driving layer 1023 is responsible for sending signals to each pixel to drive its brightness and color. These circuits are typically composed of thin-film transistors (TFTs) and can precisely control the state of each pixel. The light-emitting layer 1022 includes light-emitting devices for converting electrical energy into visible light to form a display image; one light-emitting device can constitute a sub-pixel.

[0093] The heating layer 101 is disposed between the driving layer 1023 and the substrate 1024; and / or,

[0094] The heating layer 101 is disposed between the substrate 1024 and the backplate support 103; and / or,

[0095] The heating layer 101 is disposed on the side of the back plate support 103 away from the display substrate 102.

[0096] For example, such as Figure 9 As shown, a structure is provided in which the heating layer 101 is disposed on the side of the back plate support 103 away from the display substrate 102. The heating layer 101 can also be disposed between the driving layer 1023 and the substrate 1024, or between the substrate 1024 and the back plate support 103. All of the above methods can heat the display substrate 102.

[0097] In one embodiment, the display panel 100 further includes a shielding layer 104, which is disposed between the display substrate 102 and the heating layer 101. The shielding layer 104 is grounded and is used to shield the heating layer 101 from signal interference.

[0098] For example, such as Figure 10 The diagram shown is a structural schematic of another display panel 100 provided in this application embodiment. A shielding layer 104 is disposed between the display substrate 102 and the heating layer 101. The shielding layer 104 is made of a conductive material, such as metal or a conductive coating. This material can effectively absorb or reflect electromagnetic interference signals, thereby preventing them from propagating to other parts, especially the electronic components in the display substrate 102. The shielding layer 104 can effectively shield the signal interference of the heating layer 101, and at the same time, the shielding layer 104 can also reduce cross-interference between different parts. The shielding layer 104 can capture and absorb these interference signals to maintain the normal operation and image quality of the display panel 100. By using the shielding layer 104, the display panel 100 can improve its electromagnetic compatibility and can work normally in environments with other electronic devices or electromagnetic interference sources without being affected by external interference.

[0099] In one embodiment, the display panel 100 includes a temperature sensing component 105, which is disposed on the side of the back panel bracket 103 opposite to the display direction.

[0100] For example, such as Figure 11 The diagram shows a structural schematic of another display panel 100 provided in this application embodiment. The heating layer 101 is disposed on the side of the back plate support 103 near the display side, and the temperature sensing component 105 is disposed on the side of the back plate support 103 away from the display direction. The temperature sensing component 105 can measure the temperature of the display panel 100, and then compare the measured actual temperature with the target temperature to generate a temperature control signal to control the heating electrode 1011 in the heating layer 101 to heat the display panel 100.

[0101] In one embodiment, the temperature sensing component 105 includes a plurality of temperature sensors 1051, each of which overlaps with at least one of the heating electrodes 1011 on the orthographic projection of the display substrate 102.

[0102] For example, such as Figure 11As shown, the temperature component includes multiple temperature sensors 1051, each located at a different position on the display substrate 102 and overlapping with at least one heating electrode 1011 on the orthographic projection of the display substrate 102. Each temperature sensor 1051 can detect the temperature of the heating area corresponding to one or more heating electrodes 1011. Because the temperature sensors 1051 are located at the overlapping positions with the heating electrodes 1011, the temperature of the heating area can be monitored in real time, enabling more precise temperature control and ensuring the stability and accuracy of the heating process. The presence of the temperature sensors 1051 helps prevent the heating area from overheating or undercooling. When the temperature sensor 1051 detects that the temperature exceeds the set range, corresponding measures can be taken, such as adjusting the heating power or turning off the heating electrode 1011, to ensure operation within a safe temperature range. By monitoring the temperature in real time, unnecessary heating can be avoided, thereby improving energy efficiency. When the heating area reaches the required temperature, the system can automatically stop or adjust the heating, thereby reducing energy consumption.

[0103] A second aspect of this application also proposes a temperature control method for the display panel 100 described in the first aspect. Please refer to [link to relevant documentation]. Figure 12 This is a flowchart illustrating a temperature control method proposed in this application, which includes:

[0104] S110. Generate a temperature control command, which includes a heating signal and a stop heating signal;

[0105] For example, at the beginning of the temperature control process, the temperature control module generates temperature control instructions. These instructions may include a heating signal and a stop heating signal. The heating signal initiates the heating process, informing the heating layer 101 to begin providing energy to heat a specific area of ​​the display panel 100. It is understood that the heating signal may also include information such as different heating currents or heating frequencies to adjust the heating power. The stop heating signal terminates the heating process. This signal is sent by the system to stop heating when the desired temperature is reached or heating is no longer required.

[0106] S120. Send the temperature control command to the display panel 100 so that the heating layer 101 of the display panel 100 heats up under the action of the heating signal, or the heating layer 101 stops heating up under the action of the stop heating signal.

[0107] For example, after generating temperature control commands, the temperature control module sends these commands to the display panel 100 to control the operating state of the heating layer 101. This temperature control module can communicate with the display panel 100 via a specific communication interface. This can be a wired or wireless connection, and the temperature control commands are transmitted to the display panel 100 through the communication interface. These commands include when to start heating and when to stop heating, and may also include the heating current and / or frequency. Upon receiving the temperature control commands, the display panel 100 executes the corresponding operations. For example, upon receiving a heating signal, the heating layer 101 will start heating, and upon receiving a stop heating signal, the heating layer 101 will stop heating.

[0108] In summary, the temperature control method proposed in this application, by sending a temperature control command to the display panel 100, can heat the display panel 100 and precisely control the heating effect of the heating electrode 1011. By adjusting the temperature of the display panel 100, the temperature of different areas of the display panel 100 is kept approximately uniform, improving image display defects or uneven display caused by uneven temperature. Heating the screen surface also helps to defog in cold regions. Furthermore, it can preheat the screen, extending the folding life of the foldable screen.

[0109] In one embodiment, when the heating layer 101 includes a plurality of heating electrodes 1011 arranged in an array, the method further includes:

[0110] The actual temperature distribution information of the display panel 100 is obtained by the temperature sensing component 105.

[0111] Based on the above-mentioned actual temperature distribution information and the above-mentioned target temperature distribution information, a temperature control command is generated; and / or,

[0112] Obtain the operating condition information of the display panel 100, wherein the operating condition information includes operating voltage, operating circuit, operating time and ambient temperature;

[0113] Based on the above operating condition information and the mapping relationship between operating condition temperature, the above actual temperature distribution information is determined.

[0114] Temperature control commands are generated based on the actual temperature distribution information and the target temperature distribution information.

[0115] For example, in the case where the heating layer 101 includes multiple arrayed heating electrodes 1011, the temperature sensing component 105 may include multiple temperature sensors 1051 distributed on the display panel 100 to measure the temperature of different areas. The temperature control module obtains actual temperature distribution information through these sensors, which provides actual temperature data about the corresponding heating area in the heating layer 101. The target temperature distribution information is a desired temperature distribution pattern predefined by the user or control module, i.e., the target temperature distribution to be achieved on the display panel 100. Based on the actual temperature distribution information and the target temperature distribution information, the temperature control module can use a control algorithm to generate temperature control commands. These commands can instruct the different heating electrodes 1011 in the heating layer 101 when to start heating and when to stop heating to achieve the desired temperature distribution. The algorithm for generating temperature control commands typically takes into account the difference between the actual temperature distribution and the target temperature distribution to adjust the operating state of the heating electrodes 1011 to gradually approach or maintain the target temperature distribution. After executing the temperature control command, the temperature control module can continuously monitor the actual temperature data provided by the temperature sensing component 105 and make real-time adjustments to ensure that the actual temperature is as close as possible to the target temperature distribution. The accuracy and stability of temperature control can be improved through feedback adjustment.

[0116] Without the temperature sensor 1051, the display panel 100 can be tested and measured in the laboratory or before leaving the factory under different operating voltages, circuit states, operating times, and ambient temperatures to establish a temperature mapping relationship. These mapping relationships model the correlation between different operating parameters and the actual temperature.

[0117] During the actual operation of the display panel 100, operating voltage and circuit information can be obtained by monitoring the power supply voltage and circuit status of the display panel 100. The current and voltage characteristics of the circuit are typically correlated with temperature. Operating duration can be obtained using a clock. An ambient temperature sensor 1051 can be used to obtain ambient temperature information to better understand the temperature environment surrounding the display panel 100.

[0118] Based on operating condition information and temperature mapping relationships, the actual temperature distribution of the current display panel 100 can be estimated. Temperature control commands are then generated based on the actual temperature distribution and the aforementioned target temperature distribution to approximate or maintain the target temperature distribution. Although there is no temperature sensor 1051, temperature control can still be achieved by comprehensively utilizing other operating condition information and the established temperature mapping relationships.

[0119] The temperature of different areas of the display panel 100 can be effectively controlled by using one or a combination of the two methods described above.

[0120] Thirdly, this application also proposes a temperature control module, such as... Figure 13 The diagram shown is a structural schematic of a temperature control module 200 according to an embodiment of this application, used to implement the temperature control method as described in any of the second aspects. The temperature control module can be integrated onto the control motherboard. Integrating the temperature control module onto the control motherboard enables comprehensive control; the motherboard can directly manage and monitor all functions related to the display unit, including temperature control. Integrating the temperature control module onto the control motherboard makes maintenance and upgrades more convenient, as the control motherboard is the core of the display unit, and integrating the temperature control module makes the maintenance of the entire system more integrated. The control module on the motherboard can work more closely with other components, reducing signal transmission delay and interference, resulting in higher stability.

[0121] Temperature control modules can also be integrated onto the driver chip, which reduces physical size and makes them suitable for small or embedded devices. Integration onto the driver chip is generally more energy-efficient because it allows for closer integration with the display unit's workload. It also makes it suitable for specialized applications with very strict space and power consumption requirements.

[0122] The temperature control module may include memory, controller, and processor.

[0123] Fourthly, this application also proposes a display device 10, such as... Figure 14 The diagram shown is a structural schematic of a display device 10 according to an embodiment of this application, including a display panel 100 as described in any one of the first aspects, and / or a temperature control module 200 as described in any one of the third aspects.

[0124] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A display panel, characterized in that, include: Display substrate; A heating layer is disposed on one side of the display substrate; The heating layer includes at least one metal layer, and the at least one metal layer is provided with a heating electrode and a heating control signal line. The heating electrode is electrically connected to the heating control signal line, and the heating electrode is used to generate heat under the action of the heating signal transmitted by the heating control signal line. The heating electrodes are arranged in an array, and the different heating electrodes do not overlap when projected onto the display substrate. Each heating electrode is controlled independently. The display substrate includes a plurality of sub-pixels arranged in an array, and the orthographic projection of one of the heating electrodes on the display substrate covers the plurality of sub-pixels.

2. The display panel according to claim 1, characterized in that, The heating layer includes a first metal layer, a first insulating layer and a second metal layer stacked sequentially on one side of the display substrate, wherein the first insulating layer is provided with an insulating layer through hole; The first metal layer is provided with a plurality of first heating wires, and the second metal layer is provided with a plurality of second heating wires. One end of the first heating wire and one end of the second heating wire are electrically connected through the through-hole of the insulating layer. Each set of electrically connected first heating wires and second heating wires is used to heat a portion of the display area of ​​the display panel.

3. The display panel according to claim 2, characterized in that, At least one of the first heating wire and the second heating wire is configured as a coiled wire, with one end of the coiled wire located at the center of the coiled wire and the other end located at the edge of the coiled wire, and the insulating through hole is provided in the central region of the coiled wire.

4. The display panel according to claim 3, characterized in that, The heating wires are arranged in a spiral pattern near the display substrate side, and the heating wires include a first heating wire and a second heating wire.

5. The display panel according to claim 2, characterized in that, A second insulating layer is disposed on the side of the first metal layer away from the first insulating layer, and a third insulating layer is disposed on the side of the second metal layer away from the first insulating layer. The second insulating layer is disposed on the side away from the display substrate and is used to isolate and protect it from the external environment. The third insulating layer is disposed on the side close to the display substrate and is used to isolate the heating layer and electronic devices on the display substrate side.

6. The display panel according to claim 1, characterized in that, The heating layer is disposed on the display side of the display substrate; and / or, The heating layer is disposed on the side of the display substrate opposite to the display side.

7. The display panel according to claim 6, characterized in that, Also includes: A backplate bracket is disposed on the side of the display substrate away from the display side; The display substrate includes a substrate, a driving layer, a light-emitting layer, and an encapsulation layer. The driving layer, the light-emitting layer, and the encapsulation layer are stacked sequentially on the substrate. The driving layer is provided with a pixel driving circuit, and the light-emitting layer is provided with a light-emitting device. The pixel driving circuit is electrically connected to the light-emitting device. The heating layer is disposed between the driving layer and the substrate. And / or, The heating layer is disposed between the substrate and the backplate support; and / or The heating layer is disposed on the side of the backplate support away from the display substrate.

8. The display panel according to claim 1, characterized in that, The display panel further includes a shielding layer disposed between the display substrate and the heating layer. The shielding layer is grounded and is used to shield the heating layer from signal interference.

9. The display panel according to claim 7, characterized in that, The display panel includes a temperature sensing component, which is disposed on the side of the back panel support opposite to the display direction.

10. The display panel according to claim 9, characterized in that, The temperature sensing component includes a plurality of temperature sensors, each of which overlaps with at least one of the heating electrodes on the orthographic projection of the display substrate.

11. A temperature control method, applied to a display panel as described in any one of claims 1 to 10, characterized in that, include: Generate a temperature control command, the temperature control command including a heating signal and a stop heating signal; The temperature control command is sent to the display panel to cause the heating layer of the display panel to heat up under the action of the heating signal, or to stop heating up under the action of the stop heating signal.

12. The temperature control method according to claim 11, characterized in that, When the heating layer comprises multiple arrayed heating electrodes, the method further includes: The actual temperature distribution information of the display panel is obtained through a temperature sensing component; Generate temperature control commands based on the actual temperature distribution information and the target temperature distribution information; and / or, Obtain the operating condition information of the display panel, wherein the operating condition information includes operating voltage, operating circuit, operating time and ambient temperature; The actual temperature distribution information is determined based on the operating condition information and the mapping relationship between the operating condition temperature; Temperature control commands are generated based on the actual temperature distribution information and the target temperature distribution information.

13. A temperature control module, characterized in that, Used to implement the temperature control method as described in any one of claims 11 to 12.

14. A display device, characterized in that, It includes the display panel as described in any one of claims 1 to 10, and / or the temperature control module as described in claim 13.

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