Panel display control method and display panel

Abstract

The application provides a panel display control method and a display panel. The panel display control method comprises the following steps: dividing a temperature range that needs to be heated into multiple temperature gradient ranges, and acquiring a response time of liquid crystal in each temperature gradient range; determining a heating power of each temperature gradient range according to the response time of each temperature gradient range, wherein the heating power of each temperature gradient range comprises a starting power and an ending power, and the starting power of multiple sequentially adjacent temperature gradient ranges sequentially decreases; determining a temperature rising strategy based on the heating power of each temperature gradient range and an initial temperature of a target panel, and heating the target panel; and stopping the heating of the target panel in response to the target panel being heated to a target temperature. The panel display control method and the display panel improve the conventional heating mode, accurately control the heating mode, effectively prolong the service life of the product, and improve the user experience.

Description

Technical Field

[0001] This application relates to the field of liquid crystal display technology, specifically to a panel display control method and a display panel. Background Technology

[0002] With the continuous development of electronic devices, people have increasingly higher requirements for display screens. Electroluminescent displays, as a type of light-emitting device, are used in high-performance displays; and the applications of display panels are becoming increasingly widespread. As the applications of display panels become more diversified, higher demands are also placed on the performance of display panels in terms of size, clarity, stability, and other aspects.

[0003] In conceiving and implementing this application, the inventors discovered at least the following problems: Liquid crystal displays (LCDs) project light and change brightness through the rotation of liquid crystals, thus displaying images. However, at very low temperatures, the response speed of the liquid crystal slows down, causing display pauses or abnormalities, preventing normal operation as at room temperature. For example, when starting a car in sub-zero temperatures, the screen may not display the normal prompts. Similarly, when using measuring instruments at low temperatures, touchscreens may become sluggish. To enable better operation of the LCD at low temperatures, a heating layer needs to be added to the liquid crystal structure. However, excessively high heating temperatures can damage materials such as the module glass, while insufficient heating can affect display time. Therefore, adjusting the heating layer's driving method is essential for better display performance and improved product reliability. Summary of the Invention

[0004] To address the aforementioned technical problems, this application provides a panel display control method applied to a panel driving circuit, comprising:

[0005] The temperature range that needs to be heated is divided into multiple temperature gradient ranges, and the response time of the liquid crystal in each temperature gradient range is obtained.

[0006] Based on the response time of each temperature gradient interval, the heating power of each temperature gradient interval is determined accordingly. The heating power of each temperature gradient interval includes the starting power and the ending power, wherein the starting power of multiple sequentially adjacent temperature gradient intervals decreases sequentially.

[0007] Based on the heating power of each temperature gradient range and the initial temperature of the target panel, a heating strategy is determined to heat the target panel.

[0008] In response to the target panel being heated to the target temperature, the heating of the target panel is stopped.

[0009] Optionally, the step of determining the heating strategy based on the heating power of each temperature gradient range and obtaining the initial temperature of the target panel includes:

[0010] Determine the corresponding temperature gradient range based on the initial temperature of the target panel;

[0011] Based on the heating power within the corresponding temperature gradient range, determine the strategy for varying the heating voltage and / or heating current.

[0012] Optionally, the step of determining the strategy for varying the heating voltage and / or heating current based on the heating power within the corresponding temperature gradient range includes:

[0013] Obtain the heating resistance value, and convert the heating power of the temperature gradient range into the heating voltage and / or heating current of the corresponding temperature gradient range.

[0014] Optionally, in the process of determining the heating power of each temperature gradient interval based on the response time of each temperature gradient interval, the heating time of each temperature gradient interval is also generated.

[0015] The step of heating the target panel based on the heating strategy includes:

[0016] Based on the additional power caused by the temperature rise of external devices, and using a heat formula, the heating time is reduced accordingly.

[0017] Optionally, the step of determining the heating voltage variation strategy based on the heating power within the corresponding temperature gradient range includes:

[0018] In response to obtaining the heating resistance value, the starting power and ending power of the temperature gradient range are obtained;

[0019] Based on the heating resistance, the starting power, and the ending power, calculate the accuracy of the squared voltage change over the temperature gradient range;

[0020] Based on the accuracy of the squared voltage change, the instantaneous voltage per second is determined according to the heating time within the temperature gradient range.

[0021] Optionally, the step of determining the heating current variation strategy based on the heating power within the corresponding temperature gradient range includes:

[0022] In response to obtaining the heating resistance value, the starting power and ending power of the temperature gradient range are obtained;

[0023] Based on the heating resistance, the starting power, and the ending power, calculate the accuracy of the squared change in current within the temperature gradient range;

[0024] Based on the accuracy of the square change of the current, and the heating time within the temperature gradient range, the instantaneous current per second is determined.

[0025] Optionally, before the step of determining the instantaneous voltage per second based on the heating time within the temperature gradient range according to the accuracy of the squared voltage change, the following expression is used for calculation:

[0026] U 2 =U n-1 2 -t*△U 2

[0027] △U 2 =(U n-1 2 -U n 2 ) / t n-1

[0028] U n-1 2 =P n-1 *R

[0029] Where n is the number of temperature gradients, n is a positive integer greater than 1, U is the instantaneous voltage per second, and t n-1 U represents the heating time for the corresponding temperature gradient range, where t is the heating duration for the current temperature gradient range. n-1 U is the starting voltage corresponding to the temperature gradient range. n P is the end voltage corresponding to the temperature gradient range. n-1 R represents the initial power for the corresponding temperature gradient range, and R is the heating resistance.

[0030] Optionally, before the step of determining the instantaneous current per second based on the heating time within the temperature gradient range according to the accuracy of the square change of current, the following expression is used for calculation:

[0031] I 2 =I 1-1 2 -t*△I 2

[0032] △I 2 =(I n-1 2 -I n 2 ) / t n-1

[0033] I n-1 2 =P n-1 / R

[0034] Where n is the number of temperature gradients, n is a positive integer greater than 1, I is the instantaneous voltage per second, and tn-1 Let t be the heating time for the corresponding temperature gradient range, and I be the heating duration for the current temperature gradient range. n-1 I is the starting current corresponding to the temperature gradient range. n P is the final current corresponding to the temperature gradient range. n-1 R represents the initial power for the corresponding temperature gradient range, and R is the heating resistance.

[0035] Optionally, the heating power includes a first power and a second power; after the step of heating the target panel based on the heating strategy, the following steps are included:

[0036] The target panel is heated using a first power within the corresponding temperature gradient range, and the time is recorded.

[0037] In response to the heating time reaching the corresponding temperature gradient range, the process temperature of the target panel is obtained;

[0038] When the process temperature is lower than the starting temperature of the next temperature gradient range, the second power is switched to heat the target panel.

[0039] Optionally, the step of switching to the second power to heat the target panel when the process temperature is lower than the starting temperature of the next temperature gradient range includes:

[0040] If the target panel fails to reach the normal temperature at the end of the heating cycle for all temperature gradients, heating will stop and a warning message will be generated.

[0041] This application also provides a display panel, the display panel including a processor and a memory;

[0042] The memory stores a computer program, which, when executed by the processor, implements the steps of the panel display control method described above.

[0043] As described above, the panel display control method and display panel of this application acquire the initial temperature of the target panel, determine a heating strategy based on the initial temperature, heat the target panel based on the heating strategy, and stop heating the target panel in response to the target panel being heated to the target temperature. By improving upon traditional heating methods, precise temperature control is possible at different levels without damaging the heating device or module materials. Simultaneously, it solves the problem of increased total power consumption of the module due to the heating layer device, thereby optimizing the module product specifications, effectively extending product lifespan, and improving user experience. Attached Figure Description

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0045] Figure 1 This is a flowchart of a panel display control method according to an embodiment of this application.

[0046] Figure 2 This is a schematic diagram of a temperature gradient curve according to an embodiment of this application.

[0047] Figure 3 This is a schematic diagram of the heating power curve of an embodiment of this application.

[0048] Figure 4 This is a schematic diagram of a temperature gradient curve according to an embodiment of this application. Figure 2 .

[0049] Figure 5 This is a schematic diagram of the heating power curve according to an embodiment of this application. Figure 2 .

[0050] Figure 6 This is a schematic diagram of the display panel module structure according to an embodiment of this application. Figure 1 .

[0051] Figure 7 This is a schematic diagram of the display panel module structure according to an embodiment of this application. Figure 2 .

[0052] Figure 8 This is a schematic diagram of the display panel heating process according to an embodiment of this application.

[0053] The realization of the objectives, functional features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0054] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0055] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0056] It should be understood that although the terms first, second, third, etc., may be used herein to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if," as used herein, may be interpreted as "when," "when," or "in response to determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising," "including," indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used in this application, may be interpreted as inclusive, or mean any one or any combination thereof. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Similarly, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0057] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0058] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0059] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustration and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0060] The following description will use a mobile terminal as an example. Those skilled in the art will understand that, apart from elements specifically designed for mobile purposes, the construction according to the embodiments of this application can also be applied to fixed-type terminals.

[0061] First Embodiment

[0062] To address the aforementioned technical problems, this application provides a panel display control method applied to a panel driving circuit. Figure 1 This is a flowchart of a panel display control method according to an embodiment of this application.

[0063] like Figure 1 As shown, in one embodiment, the panel display control method includes:

[0064] S10: Divide the temperature range that needs to be heated into multiple temperature gradient ranges and obtain the response time of the liquid crystal in each temperature gradient range.

[0065] For example, the operating temperature range of the LCD panel may be between -30°C and 80°C. Heating is required in environments below 0°C. In this case, the temperature range of -30°C to 0°C can be set as the temperature range requiring heating, divided into three temperature gradient ranges. Optionally, the changes in LCD response time within the three temperature gradient ranges T1-T2, T2-T3, and T3-T4 can be obtained through experimental test data or through a preset calculation method.

[0066] S20: Based on the response time of each temperature gradient interval, determine the heating power of each temperature gradient interval. The heating power of each temperature gradient interval includes the starting power and the ending power, wherein the starting power of multiple sequentially adjacent temperature gradient intervals decreases sequentially.

[0067] For example, based on the liquid crystal response time data and the heating speed and response time requirements of the display panel, the heating power change range corresponding to the three temperature gradient ranges of power consumption P1-P2, P2-P3, and P3-P4 at different temperature stages can be divided. Optionally, the change accuracy of each heating power change range can be obtained.

[0068] S30: Based on the heating power of each temperature gradient range and the initial temperature of the target panel, determine the heating strategy and heat the target panel.

[0069] For example, to enable better operation of the LCD screen at low temperatures, a heating layer device can be added to the LCD structure. To accurately obtain the panel temperature, a temperature sensing module can be added to the heating layer device to monitor the temperature in real time and transmit the data to the processor. Based on the acquired temperature data, the processor can determine a heating strategy appropriate for the current state of the target panel.

[0070] For example, the processor can control the heating layer device to heat the panel according to a determined heating strategy, so that the LCD screen can be used better at low temperatures.

[0071] S40: In response to the target panel being heated to the target temperature, stop heating the target panel.

[0072] When the target panel is heated to the target temperature, the target panel can provide normal display services in its current state, and at this time the heating layer device can be controlled to stop heating.

[0073] In this embodiment, by improving the traditional heating method, the temperature can be accurately controlled at different levels without causing damage to the heating device and module materials. At the same time, it also solves the problem of increased total power consumption of the module caused by the heating layer device, thereby achieving the optimal specifications of the module product; effectively extending the product life and improving the user experience.

[0074] Optionally, the step of determining the heating strategy based on the heating power of each temperature gradient range and obtaining the initial temperature of the target panel includes:

[0075] Determine the corresponding temperature gradient range based on the initial temperature of the target panel;

[0076] Based on the heating power within the corresponding temperature gradient range, determine the strategy for varying the heating voltage and / or heating current.

[0077] For example, the current operating environment temperature is determined by the initial temperature of the target panel, thereby verifying the heating curve and determining the corresponding temperature gradient range. Optionally, the heating power consumption change in the corresponding temperature gradient range is converted into a corresponding voltage and / or current change based on the resistance value of the heating layer. As the temperature gradually rises to the target operating temperature, the final power consumption is adjusted to 0, i.e., the heating layer device is stopped.

[0078] Figure 2 This is a schematic diagram of a temperature gradient curve according to an embodiment of this application. Figure 3 This is a schematic diagram of the heating power curve of an embodiment of this application.

[0079] Please refer to Figure 2 and Figure 3 For example, the current ambient temperatures T1, T2, T3, T4…Tn represent sub-zero temperatures, and n represents the required temperature level. The power consumption of the heating layer device is controlled based on the variation of the liquid crystal response time at different temperatures. Experimental test data is used to obtain the changes in liquid crystal response time from the current ambient temperature T1-T2, T2-T3, T3-T4,…Tn-1 to Tn. The power consumption variation accuracy P1-P2, P2-P3, P3-P4,…Pn-1 to Pn at different temperature stages is determined based on the liquid crystal response time.

[0080] Optionally, the step of determining the strategy for varying the heating voltage and / or heating current based on the heating power within the corresponding temperature gradient range includes:

[0081] Obtain the heating resistance value, and convert the heating power of the temperature gradient range into the heating voltage and / or heating current of the corresponding temperature gradient range.

[0082] For example, the heating layer module can be considered as a working resistor in the circuit. Therefore, the change in heating power P is ultimately converted into a corresponding change in heating voltage U and / or heating current I based on the resistance value R of the heating layer module.

[0083] Optionally, in the process of determining the heating power of each temperature gradient interval according to the response time of each temperature gradient interval, the heating time of each temperature gradient interval is also generated.

[0084] The step of heating the target panel based on the heating strategy includes:

[0085] Based on the additional power caused by the temperature rise of external devices, and using a heat formula, the heating time is reduced accordingly.

[0086] For example, the temperature data Tt of the temperature measurement module is equal to the current ambient temperature Ta plus the compensation temperature ΔT. During the process of calculating the changes in heating voltage U and / or heating current I based on the measured temperature change and heating power, and using a timer to control the time interval of the changes in heating voltage U and / or heating current I, the heating layer provides power P, and the additional power ΔP from the temperature rise of external devices will cause the heat Q = (P + ΔP) * t within the same time period, resulting in faster module heating. At this point, the complete cycle of temperature change between the corresponding temperature gradients needs to be interrupted, and the system can switch to the next temperature range in advance to continue regulation.

[0087] Optionally, the heating power of each temperature gradient interval includes a starting power and an ending power, wherein the starting power of the previous temperature gradient interval is greater than the starting power of the adjacent subsequent temperature gradient interval.

[0088] Please refer to Figure 3 For example, as the temperature gradually increases, the heating power gradually decreases. Figure 3 It is evident that the initial power in the preceding temperature gradient interval is greater than the initial power in the adjacent following temperature gradient interval. Optionally, the initial power of the following temperature gradient interval can be used as the ending power of the preceding temperature gradient interval.

[0089] Optionally, the step of determining the heating voltage variation strategy based on the heating power within the corresponding temperature gradient range includes:

[0090] In response to obtaining the heating resistance value, the starting power and ending power of the temperature gradient range are obtained;

[0091] Based on the heating resistance, the starting power, and the ending power, calculate the accuracy of the squared voltage change over the temperature gradient range;

[0092] Based on the accuracy of the squared voltage change, the instantaneous voltage per second is determined according to the heating time within the temperature gradient range.

[0093] For example, the starting power of a later temperature gradient interval can be used as the ending power of a previous temperature gradient interval. Similarly, the starting voltage of a later temperature gradient interval can be used as the ending voltage of a previous temperature gradient interval. Once the heating resistance value is obtained, according to the voltage and power calculation formulas, U can be obtained. 2 The formula P*R is used to calculate the starting and ending voltages for the corresponding temperature gradient range. Optionally, by combining the heating time for the corresponding temperature gradient range, the instantaneous voltage per second can be determined.

[0094] Optionally, before the step of determining the instantaneous voltage per second based on the heating time within the temperature gradient range according to the accuracy of the squared voltage change, the following expression is used for calculation:

[0095] U 2 =U n-1 2 -t*△U 2

[0096] △U 2 =(U n-1 2 -U n 2 ) / t n-1

[0097] U n-1 2 =P n-1 *R

[0098] Where n is the number of temperature gradients, n is a positive integer greater than 1, U is the instantaneous voltage per second, and t n-1 U represents the heating time for the corresponding temperature gradient range, where t is the heating duration for the current temperature gradient range. n-1 U is the starting voltage corresponding to the temperature gradient range. n P is the end voltage corresponding to the temperature gradient range. n-1 R represents the initial power for the corresponding temperature gradient range, and R is the heating resistance.

[0099] Figure 4 This is a schematic diagram of a temperature gradient curve according to an embodiment of this application. Figure 2 . Figure 5 This is a schematic diagram of the heating power curve according to an embodiment of this application. Figure 2 .

[0100] like Figure 4 and Figure 5 As shown, in one embodiment, the liquid crystal response time data uses test data from a certain model; exemplarily, this embodiment selects model A080A R3. The above-mentioned data has been obtained through experimental data. Figure 2 and Figure 3 Data formation Figure 4 and Figure 5In this example, assuming the total adjustment time from -30℃ to 0℃ is 20s, then t1 requires 10s, t2 requires 5s, and t3 requires 5s. Taking the calculation of the first temperature gradient range T1-T2 as an example, assuming the heating layer device impedance R = 20 ohms, based on power consumption, using the formula P = U2 / R, the voltage change in the first temperature gradient range T1-T2 is calculated as follows: Voltage U12 = P1 * R = 600, Voltage U22 = P2 * R = 500. The voltage squared change accuracy ΔU2 = (600 – 500) / 10s = 10 is calculated. The instantaneous voltage per second can be calculated using the expression U2 = (U12 - t * ΔU2), with times t = 0, 1, ... 10. Then, a timer is used to complete the change within the 10s time interval t1. Similarly, the calculation for other temperature gradient ranges can be completed one by one using this method. In special circumstances, the adjustment can be interrupted, and the system can be switched to low power to continue adjustment. If the module still cannot reach a normal state after adjustment, an alarm can be triggered to alert the user.

[0101] Of course, the above time allocation can be dynamically adjusted according to specific needs. Shortening the adjustment time only requires increasing the power consumption of the heating device, which is also related to the material properties and parameters of the heating device. This embodiment provides an exemplary case, and this application does not limit it.

[0102] Optionally, the step of determining the heating current variation strategy based on the heating power within the corresponding temperature gradient range includes:

[0103] In response to obtaining the heating resistance value, the starting power and ending power of the temperature gradient range are obtained;

[0104] Based on the heating resistance, the starting power, and the ending power, calculate the accuracy of the squared change in current within the temperature gradient range;

[0105] Based on the accuracy of the square change of the current, and the heating time within the temperature gradient range, the instantaneous current per second is determined.

[0106] For example, the starting power of a later temperature gradient interval can be used as the ending power of a previous temperature gradient interval. Similarly, the starting current of a later temperature gradient interval can be used as the ending current of a previous temperature gradient interval. Once the heating resistance value is obtained, according to the formulas for calculating current and power, we can have I... 2 The formula P / R is used to calculate the starting and ending currents for the corresponding temperature gradient range. Optionally, by combining the heating time for the corresponding temperature gradient range, the instantaneous current per second can be determined.

[0107] Optionally, before the step of determining the instantaneous current per second based on the heating time within the temperature gradient range according to the accuracy of the square change of current, the following expression is used for calculation:

[0108] I 2 =I 1-1 2 -t*△I 2

[0109] △I 2 =(I n-1 2 -I n 2 ) / t n-1

[0110] I n-1 2 =P n-1 / R

[0111] Where n is the number of temperature gradients, n is a positive integer greater than 1, I is the instantaneous voltage per second, and t n-1 Let t be the heating time for the corresponding temperature gradient range, and I be the heating duration for the current temperature gradient range. n-1 I is the starting current corresponding to the temperature gradient range. n P is the final current corresponding to the temperature gradient range. n-1 R represents the initial power for the corresponding temperature gradient range, and R is the heating resistance.

[0112] like Figure 4 and Figure 5 As shown, in one embodiment, the liquid crystal response time data uses test data from a certain model; exemplarily, this embodiment selects model A080A R3. The above-mentioned data has been obtained through experimental data. Figure 2 and Figure 3 Data formation Figure 4 and Figure 5 Example data: Assuming the total adjustment time from -40℃ to -10℃ is 20s, then t1 requires 10s, t2 requires 5s, and t3 requires 5s. Taking the calculation of the first temperature gradient range T1-T2 as an example, assuming the heating layer device impedance R = 20 ohms. Based on the power consumption, using the formula P = I... 2 *R, calculated for current changes as follows: Current I1 2 =P1 / R=1.5, voltage I2 2 =P2 / R=1.25, which translates to the accuracy of the square change in current ΔI. 2 = (1.5–1.25) / 10s = 0.025, the instantaneous current per second can be calculated using the expression I. 2 =(I1) 2 -t*△I 2The calculation is performed for times t = 0, 1, ... 10. A timer is then used to change the time within the 10-second interval t1. Similarly, calculations for other temperature gradient ranges can be performed sequentially using this method. In case of special circumstances, the adjustment can be interrupted and switched to low power to continue adjustment. If the module still fails to reach normal operation after adjustment, an alarm can be triggered to alert the user.

[0113] Of course, the above time allocation can be dynamically adjusted according to specific needs. Shortening the adjustment time only requires increasing the power consumption of the heating device, which is also related to the material properties and parameters of the heating device. This embodiment provides an exemplary case, and this application does not limit it.

[0114] Optionally, the heating power includes a first power and a second power; after the step of heating the target panel based on the heating strategy, the following steps are included:

[0115] The target panel is heated using a first power within the corresponding temperature gradient range, and the time is recorded.

[0116] In response to the heating time reaching the corresponding temperature gradient range, the process temperature of the target panel is obtained;

[0117] When the process temperature is lower than the starting temperature of the next temperature gradient range, the second power is switched to heat the target panel.

[0118] For example, if the heating element is operating at high power in extremely cold conditions, the heat generated may not be sufficient to meet the heating requirements. If the module fails to reach the required temperature before the heating time expires, it can be immediately switched to low power to prevent damage to the module caused by continuous high power operation. Alternatively, in special circumstances, the adjustment can be interrupted and switched to low power for continued adjustment.

[0119] Optionally, the step of switching to the second power to heat the target panel when the process temperature is lower than the starting temperature of the next temperature gradient range includes:

[0120] If the target panel fails to reach the normal temperature at the end of the heating cycle for all temperature gradients, heating will stop and a warning message will be generated.

[0121] For example, if the module fails to return to normal operation after a complete heating cycle, an alarm can be triggered to alert the user. Optionally, in special circumstances, adjustment can be interrupted, and adjustment can be continued at low power. If the module still fails to return to normal operation after adjustment, an alarm can be triggered to alert the user.

[0122] The above-mentioned heating adjustment method improves upon traditional heating methods, allowing for precise control of different temperatures without damaging the heating device or module materials. At the same time, it also solves the problem of increased total power consumption of the module caused by the heating layer device, thereby optimizing the module product specifications.

[0123] Second Embodiment

[0124] This application also provides a display panel, the display panel including a processor and a memory;

[0125] The memory stores a computer program, which, when executed by the processor, implements the steps of the panel display control method described above.

[0126] Figure 6 This is a schematic diagram of the display panel module structure according to an embodiment of this application. Figure 1 , Figure 7 This is a schematic diagram of the display panel module structure according to an embodiment of this application. Figure 2 , Figure 8 This is a schematic diagram of the display panel heating process according to an embodiment of this application. Please also refer to... Figure 6 , Figure 7 and Figure 8 For example, the display panel includes a temperature measurement module, a programmable variable voltage and / or current module, a timer, an alarm device, a module status detection module, and a processor.

[0127] Alternatively, the temperature measuring module can be placed on the heating layer device (e.g., Figure 6 ) or placed on the module-side FPC (such as Figure 7 By changing the structure of the heating layer device and fitting it with the temperature measuring module, the temperature change of the device can be accurately measured, and accurate temperature data of the heating layer device can be obtained for conversion with the ambient temperature.

[0128] Optionally, the programmable variable voltage and / or current module can be generated using a Buck converter plus a Boost converter power supply circuit, a controllable current source circuit, or a programmable voltage and / or current IC via an interface such as I2C, SPI, or DAC. The heating voltage and / or heating current supplied to the heating layer device can be adjusted within a certain range, and the processor controls the changes in heating voltage and / or heating current. This module can effectively control the power consumption corresponding to the heating power of the heating layer device.

[0129] Optionally, the timer is located inside the processor and can provide timing functions such as the rate of change of voltage and / or current at each temperature stage. Precise timing control can optimize the adjustment effect.

[0130] Optionally, the alarm device can be used to remind you when heating is complete, or to trigger an alarm when an abnormal situation occurs during heating.

[0131] Optionally, the module status detection module can detect the status of the module. If the module is detected to be in a normal state, the heating layer device is stopped; if the module is detected to be in an abnormal state, the heating layer is turned on.

[0132] Optionally, the processor can acquire temperature data from the temperature measurement module and convert it to ambient temperature. Based on an adjustment algorithm, it controls the timing accuracy of the timer at different temperature stages and controls the programmable variable voltage and / or current source module to output different voltage and / or current values. Simultaneously, it detects whether the module is in a normal or abnormal state, effectively controlling whether the heating layer device is on or off. Furthermore, it provides alarm and reminder functions based on the adjustment status.

[0133] Optionally, during the specific execution of display panel heating, after the system powers on and resets, functional modules such as the temperature measurement module, power supply module, timer, power control module, detection module, and alarm module are initialized. Then, the temperature of the heating layer device is detected to determine if the display module is in an abnormal state. If it is not in an abnormal state, it means that heating adjustment is not required, and the system returns to detecting the temperature of the heating layer device. If the module is confirmed to be in an abnormal state, temperature data is acquired and converted to ambient temperature to determine if the current ambient temperature is within the adjustable range. If it is not within the adjustable range, an alarm can be generated. If it is within the adjustable range, the heating layer device is started for heating adjustment. The corresponding heating voltage and / or heating current values ​​and change time intervals can be calculated based on the current power consumption range. During the heating process according to the time intervals, a timer is started to determine if the current output time of the heating voltage and / or heating current has been reached. If not, the system returns to the heating continuation step. If the time has been reached, the system determines whether the total heating adjustment time for the current temperature range has been reached. If the total time has not been reached, the heating adjustment for this temperature range ends, and the process returns to the step of detecting the temperature of the heating layer device to reacquire temperature data and convert it into environmental data in case of module malfunction. If the total time has been reached, the heating layer device temperature is detected to determine if the module is in an abnormal state, and the process continues to switch to the next low-power range for adjustment. If the module is not in an abnormal state, it means that heating adjustment is not needed at this time, so the heating adjustment for this temperature range ends, and the process returns to the step of detecting the temperature of the heating layer device to reacquire temperature data and convert it into environmental data in case of module malfunction. If the module is in an abnormal state, the process continues to switch to the next low-power range for heating adjustment. At this point, it can be determined whether the total adjustment time has been reached. If the total heating adjustment time has not been reached, the process returns to the step of detecting the temperature of the heating layer device to continue switching to the next low-power range for adjustment. If the total heating adjustment time has been reached, it can be determined again whether the module is still in an abnormal state. If the module is not in an abnormal state at this time, the process returns to the step of detecting the temperature of the heating layer device to reacquire temperature data and convert it into environmental data in case of module malfunction. If the module is still in an abnormal state at this time, an alarm can be triggered.

[0134] The display panel improves upon traditional heating methods by employing the aforementioned heating adjustment mechanism. It allows for precise control at different temperatures without damaging the heating device or module materials. At the same time, it also solves the problem of increased total power consumption of the module caused by the heating layer device, thereby optimizing the module product specifications.

[0135] Please refer to Figure 2 and Figure 3In this example, the current ambient temperatures T1, T2, T3, T4…Tn represent sub-zero temperatures, and n represents the required temperature level. The power consumption of the heating layer device can be controlled based on the variation of the liquid crystal response time at different temperatures.

[0136] For example, by using experimental test data, the liquid crystal response time changes of the current ambient temperature T1-T2, T2-T3, T3-T4, ...Tn-1 to Tn are obtained. The power consumption changes of P1-P2, P2-P3, P3-P4, ...Pn-1 to Pn under different temperature stages are divided according to the liquid crystal response time. Finally, the power consumption P change is converted into the corresponding voltage U and / or current I change according to the resistance R of the heating layer. The final power consumption is adjusted to 0, that is, the heating layer device is stopped.

[0137] Alternatively, the temperature data from the temperature measurement module can be calculated using the following expression:

[0138] Temperature data Tt from the temperature measurement module = current ambient temperature Ta + compensation temperature △T.

[0139] In this embodiment, the changes in heating voltage U and / or heating current I are calculated based on the measured temperature change and power consumption change, and a timer is used to control the time interval of the changes in heating voltage U and / or heating current I, i.e. Figure 3 The slope, total time, and interval between each temperature stage can be dynamically adjusted according to actual needs to achieve the best adjustment effect.

[0140] Please refer to Figure 5 In another embodiment, some special situations may arise due to the influence of external environmental factors. According to the heat formula Q = P (power) * t (duration), we can obtain:

[0141] 1. The heating layer provides power P, and the temperature rise of external equipment affects the additional power △P. According to the heat calculation expression Q=(P+△P)*t, this will cause the module to heat up faster in the same amount of time. At this time, the complete cycle of P1-P2 change should be interrupted in advance, and the next temperature range should be switched immediately to continue the control. The same applies to other temperature ranges. At this time, the user can be reminded of the completion status.

[0142] 2. When the heating element is operating at high power, the heating energy Q may be insufficient in extremely cold external conditions. This can result in the heating time exceeding the allotted time without the module reaching the required temperature. In this case, immediately switch to low power to prevent damage to the module caused by continuous high power operation. If the module still hasn't returned to normal after the entire heating cycle, an alarm should be triggered to alert the user.

[0143] For example, please refer to Figure 4 and Figure 5The LCD response time data uses test data from model A080A R3. For example, the above data has already been obtained through experimental data. Figure 1 and Figure 2 Assuming the total adjustment time from -30℃ to 0℃ is 20s, then t1 requires 10s, t2 requires 5s, and t3 requires 5s. Taking the first calculation as an example, assuming the heating layer device impedance R = 20 ohms. Based on power consumption, using the formula P = U² / R, the voltage change is calculated as follows: Voltage U1² = P1 * R = 600, Voltage U2² = P2 * R = 500. The voltage squared change accuracy ΔU² = (600 – 500) / 10s = 10, thus obtaining the instantaneous voltage per second U = √(U1² - t * ΔU²), with times t = 0, 1, ... 10. The change is then completed within the 10s time interval t1 using a timer. The same applies to the second and third calculations. In special circumstances, the adjustment needs to be interrupted, and the system switched to low power for continued adjustment. If the module still fails to reach normal operation after adjustment, an alarm should be triggered to alert the user.

[0144] Of course, the above time allocation can be dynamically adjusted according to customer needs. Shortening the adjustment time only requires increasing the power consumption of the heating device, which is also related to the material properties and parameters of the heating device.

[0145] For example, please refer to Figure 4 and Figure 5 The LCD response time data uses test data from model A080A R3. For example, the above data has already been obtained through experimental data. Figure 1 and Figure 2 Based on the data, assuming the total adjustment time from -40℃ to -10℃ is 20s, then t1 requires 10s, t2 requires 5s, and t3 requires 5s. Taking the first calculation as an example, assume the heating layer device impedance R = 20 ohms. According to the power consumption, using the formula P = I... 2 *R, calculated for current changes as follows: Current I1 2 =P1 / R=1.5, voltage I2 2 =P2 / R=1.25, the accuracy of the square change of current ΔI is calculated. 2 = (1.5 – 1.25) / 10s = 0.025, so the instantaneous current per second I = √(I1) 2 -t*△I 2 The time interval is t = 0, 1, ... 10. Then, a timer is used to change the time within 10 seconds of t1. The same applies to the second and third segments. In case of special circumstances, the adjustment needs to be interrupted and switched to low power to continue adjustment. If the module still cannot reach a normal state after adjustment, an alarm should be triggered to notify the user.

[0146] Of course, the above time allocation can be dynamically adjusted according to customer needs. Shortening the adjustment time only requires increasing the power consumption of the heating device, which is also related to the material properties and parameters of the heating device.

[0147] In this embodiment, a temperature measurement module is added to the heating layer device to monitor the temperature in real time and transmit the data to the processor. The processor adjusts the programmable voltage and / or current source based on the temperature data, and controls the rate and accuracy of the voltage and / or current changes according to a timer, thereby effectively controlling the heating layer device. Simultaneously, the module status is detected, and an alarm function is provided.

[0148] As described above, the panel display control method and display panel of this application acquire the initial temperature of the target panel, determine a heating strategy based on the initial temperature, heat the target panel based on the heating strategy, and stop heating the target panel in response to the target panel being heated to the target temperature. By improving upon traditional heating methods, precise temperature control is possible at different levels without damaging the heating device or module materials. Simultaneously, it solves the problem of increased total power consumption of the module due to the heating layer device, thereby optimizing the module product specifications, effectively extending product lifespan, and improving user experience.

[0149] The examples listed above are for reference only. To avoid redundancy, they will not be listed one by one here. In actual development or application, they can be flexibly combined according to actual needs. However, any combination belongs to the technical solution of this application and is covered by the protection scope of this application.

[0150] It is understood that the above scenarios are merely examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of this application. The technical solutions of this application can also be applied to other scenarios. For example, as those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0151] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0152] The steps in the method of this application embodiment can be adjusted, combined, or deleted according to actual needs.

[0153] The units in the device of this application embodiment can be merged, divided, and deleted according to actual needs.

[0154] In this application, the same or similar terms, concepts, technical solutions and / or application scenario descriptions are generally described in detail only when they appear for the first time. When they appear again, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of this application, the same or similar terms, concepts, technical solutions and / or application scenario descriptions that are not described in detail later can be referred to their previous relevant detailed descriptions.

[0155] In this application, the descriptions of the various embodiments have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0156] The technical features of the present application can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0157] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, controlled terminal, or network device, etc.) to execute the methods of each embodiment of this application.

[0158] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a storage medium or transmitted from one storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, storage disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., a solid-state disk (SSD)).

[0159] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A method of controlling a display of a panel, characterized by, Applications in panel driving circuits include: The temperature range that needs to be heated is divided into multiple temperature gradient ranges, and the response time of the liquid crystal in each temperature gradient range is obtained. Based on the response time of each temperature gradient interval, the heating power of each temperature gradient interval is determined accordingly. The heating power of each temperature gradient interval includes the starting power and the ending power, wherein the starting power of multiple temperature gradient intervals decreases sequentially. Based on the heating power of each temperature gradient range and the initial temperature of the target panel, a heating strategy is determined to heat the target panel. In response to the target panel being heated to the target temperature, the heating of the target panel is stopped.

2. The panel display control method according to claim 1, wherein The step of determining the heating strategy based on the heating power of each temperature gradient range and obtaining the initial temperature of the target panel includes: Based on the initial temperature of the target panel, determine the corresponding temperature gradient range; Based on the heating power within the corresponding temperature gradient range, a strategy for varying the heating voltage and / or heating current is determined.

3. The panel display control method according to claim 2, wherein The step of determining the strategy for changing the heating voltage and / or the heating current based on the heating power within the corresponding temperature gradient range includes: Obtain the heating resistance value, and convert the heating power of the temperature gradient range into the heating voltage and / or heating current of the corresponding temperature gradient range.

4. The panel display control method according to claim 3, wherein In the process of determining the heating power of each temperature gradient interval based on the response time of each temperature gradient interval, the heating time of each temperature gradient interval is also generated. The step of determining the heating strategy and heating the target panel includes: Based on the additional power caused by the temperature rise of external devices, and using a heat formula, the heating time is reduced accordingly.

5. The panel display control method according to claim 4, wherein The step of determining the strategy for changing the heating voltage and / or heating current based on the heating power within the corresponding temperature gradient range includes: In response to obtaining the heating resistance value, the starting power and ending power of the temperature gradient range are obtained; Based on the heating resistance, the starting power, and the ending power, calculate the accuracy of the squared voltage change over the temperature gradient range; Based on the accuracy of the squared voltage change, and the heating time within the temperature gradient range, the instantaneous voltage per second is determined. And / or, In response to obtaining the heating resistance value, the starting power and ending power of the temperature gradient range are obtained; Based on the heating resistance, the starting power, and the ending power, calculate the accuracy of the squared change in current within the temperature gradient range; Based on the accuracy of the square change of the current, and the heating time within the temperature gradient range, the instantaneous current per second is determined.

6. The panel display control method according to claim 5, wherein Before the step of determining the instantaneous voltage per second based on the heating time within the temperature gradient range according to the accuracy of the squared voltage change, the following expression is used for calculation: U 2 =U n-1 2 -t*△U 2 ΔU 2 = (U n-1 2 - U n 2 ) / t n-1 U n-1 2 =P n-1 *R wherein n is the number of temperature gradient, n is a positive integer greater than 1, U is the instantaneous voltage per second, t n-1 is the heating time corresponding to the temperature gradient interval, t is the heating time length of the current temperature gradient interval, U n-1 is the starting voltage corresponding to the temperature gradient interval, U n is the end voltage corresponding to the temperature gradient interval, P n-1 is the starting power corresponding to the temperature gradient interval, and R is the heating resistance value.

7. The panel display control method according to claim 5, wherein Before the step of determining the instantaneous current per second based on the heating time within the temperature gradient range according to the accuracy of the square change of current, the following expression is used for calculation: I 2 =I 1-1 2 -t*△I 2 ΔI 2 = (I n-1 2 - I n 2 ) / t n-1 I n-1 2 =P n-1 / R Wherein, n is the number of temperature gradient, n is a positive integer greater than 1, I is the instantaneous voltage per second, t n-1 is the heating time corresponding to the temperature gradient interval, t is the heating time length of the current temperature gradient interval, I n-1 is the starting current corresponding to the temperature gradient interval, I n is the end current corresponding to the temperature gradient interval, P n-1 is the starting power corresponding to the temperature gradient interval, and R is the heating resistance value.

8. The panel display control method according to any one of claims 4 to 7, wherein The heating power includes a first power and a second power; the step of determining the heating strategy and heating the target panel includes: heating the target panel using a first power corresponding to the temperature gradient interval and timing; in response to the heating time reaching a heating time corresponding to the temperature gradient interval, obtaining a process temperature of the target panel; when the process temperature is less than a starting temperature of a next temperature gradient interval, switching to a second power to heat the target panel.

9. The panel display control method according to claim 8, wherein The step of switching to the second power to heat the target panel when the process temperature is less than the starting temperature of the next temperature gradient interval further comprises: when the heating period of all temperature gradient intervals ends and the target panel does not reach a normal temperature state, stopping heating and generating a warning message.

10. A display panel, characterized by, The display panel comprises a processor and a memory; The memory stores a computer program, and the computer program is executed by the processor to implement the steps of the panel display control method according to any one of claims 1-9.

Images