Luminescence compensation method, terminal device, and computer-readable storage medium

Abstract

This application discloses a luminescence compensation method, terminal device, and computer-readable storage medium, relating to the display field. The method includes: in response to a charging operation of a receiving coil, detecting first and second temperatures of first and second display areas based on first and second temperature measuring elements, respectively; determining a first luminous efficiency of a first light-emitting device based on the first temperature, and determining a second luminous efficiency of a second light-emitting device based on the second temperature; determining a luminescence compensation value for the first light-emitting device based on the first and second luminous efficiencies; and, in response to a screen-on operation, controlling the first light-emitting device to perform a luminescence operation based on the luminescence compensation value. In this way, luminescent devices in higher-temperature areas of the display screen can perform luminescence operations based on the luminescence compensation value. Therefore, luminescent devices in higher-temperature areas and normal-temperature areas can emit light of the same / similar intensity when displaying the same content, thereby avoiding the occurrence of uneven luminescence or ghosting.

Description

Technical Field

[0001] The present application relates to the field of display, and more specifically, to a luminescence compensation method, a terminal device, and a computer-readable storage medium. Background Art

[0002] When a mobile phone is charging via a wireless charger, the receiving coil inside the phone receives energy from the transmitting coil inside the wireless charger. This receiving coil continuously releases heat as it receives energy. When the receiving coil is adjacent to a certain area of the phone's display, the high temperature accelerates the aging of the light-emitting devices in that area. Consequently, after charging is complete, the light-emitting devices in this area age more rapidly than those in other areas, resulting in uneven illumination and image sticking on the phone's display. Summary of the Invention

[0003] The present application provides a luminescence compensation method, a terminal device, and a computer-readable storage medium.

[0004] The light emitting compensation method of the present application is applied to a terminal device, the terminal device including a display screen, the display screen including a first display area and a second display area, the first display area including a first light emitting device, a first temperature measuring element and a receiving coil for charging are provided at a position corresponding to the first display area in the terminal device, the second display area including a second light emitting device, and a second temperature measuring element is provided at a position corresponding to the second display area in the terminal device. The method includes:

[0005] In response to a charging operation of the receiving coil, detecting a first temperature of the first display area based on the first temperature measuring element, and detecting a second temperature of the second display area based on the second temperature measuring element;

[0006] calculating a first luminous efficiency of the first light-emitting device based on the first temperature, and calculating a second luminous efficiency of the second light-emitting device based on the second temperature;

[0007] determining a luminescence compensation value of the first light-emitting device based on the first luminescence efficiency and the second luminescence efficiency;

[0008] In response to a screen-lighting operation, the first light-emitting device is controlled to perform a light-emitting action based on the light-emitting compensation value.

[0009] In the luminous compensation method provided in the present application, at the beginning of charging, the first temperature and the second temperature of the first display area and the second display area are first detected based on the first temperature measuring element and the second temperature measuring element respectively, so as to determine the aging degree of the first light-emitting device and the second light-emitting device; then, the aging degree of the first light-emitting device, that is, the first luminous efficiency, is determined based on the first temperature, and the aging degree of the second light-emitting device, that is, the second luminous efficiency, is calculated based on the second temperature; thereafter, the luminous compensation value of the first light-emitting device is determined based on the first luminous efficiency and the second luminous efficiency; finally, in response to the screen-on operation, the first light-emitting device is controlled to perform a luminous action based on the luminous compensation value, so that the first light-emitting device and the second light-emitting device generate light of the same intensity when displaying the same content.

[0010] In this way, when a terminal device such as a mobile phone is charged based on a wireless charger, a certain area of its display screen has a higher temperature due to its proximity to the receiving coil, which causes the aging of the light-emitting device to accelerate. In this way, the present application will determine the luminous compensation value of the light-emitting device in the higher temperature area based on the relationship / difference / difference in luminous efficiency between the light-emitting device in the normal temperature area (i.e., the second display area) and the light-emitting device in the higher temperature area (i.e., the first display area). Then, the light-emitting device in the higher temperature area can perform the luminous action based on the luminous compensation value. Therefore, the light-emitting devices in the higher temperature area and the normal temperature area can emit light of the same / similar intensity when displaying the same content, thereby avoiding the occurrence of uneven luminescence or afterimages on the display screen due to the different aging degrees of multiple light-emitting devices in the display screen, ensuring that users can get a good terminal device usage experience.

[0011] In some embodiments, the first temperature measuring element and the second temperature measuring element both include thermistors, and the terminal device further includes a first current source, a first current detection unit, a second current source, and a second current detection unit, wherein the first current source, the first temperature measuring element, and the first current detection unit are electrically connected in sequence, and the second current source, the second temperature measuring element, and the second current detection unit are electrically connected in sequence;

[0012] The detecting, in response to the charging operation of the receiving coil, a first temperature of the first display area based on the first temperature measuring element, and a second temperature of the second display area based on the second temperature measuring element, comprises:

[0013] In response to the charging operation of the receiving coil, detecting the current value of the first temperature measuring element using the first current detection unit as a first current value, and detecting the current value of the second temperature measuring element using the second current detection unit as a second current value;

[0014] calculating the resistance of the first temperature measuring element as a first resistor using the first current value and the voltage corresponding to the first current source;

[0015] calculating the resistance of the second temperature measuring element as a second resistor using the second current value and the voltage corresponding to the second current source;

[0016] Based on a preset correspondence between resistance and temperature, the temperature corresponding to the first resistance is determined as the first temperature, and the temperature corresponding to the second resistance is determined as the second temperature.

[0017] In this way, the present application enables the first temperature and the second temperature to be obtained based on the current and voltage, thereby ensuring the acquisition efficiency of the first temperature and the second temperature. Therefore, the calculation efficiency of the luminescence compensation value can be guaranteed, so that the terminal device can quickly complete the luminescence compensation.

[0018] In some embodiments, after detecting the first temperature of the first display area based on the first temperature measuring element and detecting the second temperature of the second display area based on the second temperature measuring element in response to the charging operation of the receiving coil, the method further includes:

[0019] obtaining an operating voltage of the first light-emitting device or the second light-emitting device;

[0020] The calculating a first luminous efficiency of the first light-emitting device based on the first temperature, and calculating a second luminous efficiency of the second light-emitting device based on the second temperature, includes:

[0021] Based on the operating voltage, calculating current densities of the first light-emitting device and the second light-emitting device when they respectively operate at different luminous intensities, to obtain a first current density corresponding to the first light-emitting device and a second current density corresponding to the second light-emitting device;

[0022] determining, based on the first temperature and the operating voltage, device junction temperatures of the first light-emitting device and the second light-emitting device when they respectively operate at different current densities, to obtain a first device junction temperature corresponding to the first light-emitting device and a second device junction temperature corresponding to the second light-emitting device;

[0023] The luminous efficiency is calculated based on the first current density and the first device junction temperature as the first luminous efficiency, and the luminous efficiency is calculated based on the second current density and the first device junction temperature as the second luminous efficiency.

[0024] In this way, the embodiment of the present application enables the determination of the luminous efficiency based on the operating voltage, current density and device junction temperature, so that the luminous efficiency can be obtained at a faster rate, thereby improving the execution efficiency of luminous compensation.

[0025] In certain embodiments, the first temperature and the first current density are both positively correlated with the first device junction temperature, and the second temperature and the second current density are both positively correlated with the second device junction temperature.

[0026] In certain embodiments, the method further comprises:

[0027] Acquire a first light emitting time of the first light emitting device and a second light emitting time of the second light emitting device;

[0028] calculating a remaining lifetime of the first light-emitting device based on the first temperature and the first light-emitting time as a first remaining lifetime, and calculating a remaining lifetime of the second light-emitting device based on the second temperature and the second light-emitting time as a second remaining lifetime;

[0029] acquiring a first reference compensation value of the first light emitting device based on the second remaining lifetime and the first remaining lifetime;

[0030] The determining the luminous compensation value of the first light-emitting device based on the first luminous efficiency and the second luminous efficiency includes:

[0031] determining a second reference compensation value of the first light emitting device based on the first light emitting efficiency and the second light emitting efficiency;

[0032] The luminescence compensation value is obtained based on the first reference compensation value and the second reference compensation value.

[0033] In this way, the embodiment of the present invention allows the luminescence compensation process to take both the temperature and the luminescence time / operating time into consideration, making the luminescence compensation more effective and accurate.

[0034] In some embodiments, determining the luminescence compensation value of the first light-emitting device based on the first luminescence efficiency and the second luminescence efficiency includes:

[0035] A ratio of the second luminous efficiency to the first luminous efficiency is calculated as the luminous compensation value.

[0036] In this way, the embodiments of the present application enable the luminescence compensation value and the compensated luminescence value to be determined at a faster rate, thereby improving the execution speed of luminescence compensation.

[0037] In some embodiments, calculating the ratio of the second luminous efficiency to the first luminous efficiency as the luminous compensation value includes:

[0038] calculating a ratio of the second luminous efficiency to the first luminous efficiency as a reference compensation value of the first light-emitting device;

[0039] Determining the weight of each position in the first display area based on a preset correspondence between positions and weights;

[0040] Calculating the product of the reference compensation value and the weight of each position to obtain the luminescence compensation value of each position;

[0041] In response to the screen-lighting operation, controlling the first light-emitting device to perform a light-emitting action based on the light-emitting compensation value includes:

[0042] In response to the screen-lighting operation, the first light-emitting device is controlled to perform a light-emitting action at each of the positions based on the light-emission compensation value at each of the positions.

[0043] In this way, the embodiment of the present application enables the terminal device to calculate the corresponding luminous compensation value based on the position of the light-emitting device, making the luminous compensation of the first light-emitting device more accurate, thereby ensuring the effectiveness of the luminous compensation.

[0044] The present application also provides a terminal device, including a display screen, a driving circuit, and a main controller. The display screen includes a first display area and a second display area. The first display area includes a first light-emitting device. A first temperature measuring element and a receiving coil for charging are provided at a position corresponding to the first display area in the terminal device. The second display area includes a second light-emitting device. A second temperature measuring element is provided corresponding to the second display area in the terminal device.

[0045] The driving circuit is configured to detect a first temperature of the first display area based on the first temperature measuring element and a second temperature of the second display area based on the second temperature measuring element in response to a charging operation of the receiving coil;

[0046] The main controller is configured to calculate a first luminous efficiency of the first light-emitting device based on the first temperature, and calculate a second luminous efficiency of the second light-emitting device based on the second temperature; and determine a luminous compensation value of the first light-emitting device based on the first luminous efficiency and the second luminous efficiency;

[0047] The display screen is used to control the first light-emitting device to perform a light-emitting action based on the light-emitting compensation value in response to a screen-lighting operation.

[0048] The present application also provides a terminal device, which includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the above-mentioned luminous compensation method is implemented.

[0049] The present application also provides a computer-readable storage medium, which stores a computer program. When the computer program is executed by one or more processors, the above-mentioned luminescence compensation method is implemented.

[0050] In this way, the terminal device and computer-readable storage medium of the present application can enable terminal devices such as mobile phones to be charged based on a wireless charger. When a certain area of the display screen is at a higher temperature due to being close to the receiving coil, thereby causing the aging of the light-emitting device to accelerate, the present application will determine the compensation value of the light-emitting device in the higher temperature area based on the relationship / difference / difference in luminous efficiency between the light-emitting devices in the normal temperature area (i.e., the second display area) and the light-emitting devices in the higher temperature area (i.e., the first display area). Then, the light-emitting devices in the higher temperature area can perform light-emitting actions based on the compensation value, so the light-emitting devices in the higher temperature area and the normal temperature area can emit light with the same / similar intensity, thereby avoiding the occurrence of uneven lighting or afterimages on the display screen due to the different aging degrees of multiple light-emitting devices in the display screen, ensuring that users can get a good terminal device usage experience.

[0051] Additional aspects and advantages of the embodiments of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the embodiments of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0053] Figure 1 Schematic diagram of a flow chart of a luminescence compensation method according to certain embodiments of the present application;

[0054] Figure 2 This is a schematic diagram of application scenarios of certain embodiments of the present application;

[0055] Figure 3 This is a schematic diagram of application scenarios of certain embodiments of the present application;

[0056] Figure 4 Schematic diagram of a flow chart of a luminescence compensation method according to certain embodiments of the present application;

[0057] Figure 5 A schematic diagram of a terminal device according to some embodiments of the present application;

[0058] Figure 6 A schematic diagram of the mapping relationship of certain implementation methods of this application;

[0059] Figure 7 A schematic diagram of the mapping relationship of certain implementation methods of this application;

[0060] Figure 8 A schematic diagram of a main controller according to certain embodiments of the present application;

[0061] Figure 9 A schematic diagram of a terminal device according to certain embodiments of the present application. DETAILED DESCRIPTION

[0062] The embodiments of the present application are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the embodiments of the present application, and should not be understood as limiting the embodiments of the present application.

[0063] See also Figure 1 An embodiment of the present application provides a luminous compensation method, which is applied to a terminal device. The terminal device includes a display screen, the display screen includes a first display area and a second display area, the first display area includes a first light-emitting device, and a first temperature measuring element and a receiving coil for charging are arranged at a position corresponding to the first display area in the terminal device. The second display area includes a second light-emitting device, and a second temperature measuring element is arranged at a position corresponding to the second display area in the terminal device.

[0064] It should be noted that in the embodiments of this application, the first display area of the display screen represents the area adjacent to the receiving coil. The temperature of the light-emitting devices in this area will increase due to the heat released by the receiving coil. The second display area represents the area not adjacent to the receiving coil. Because it is not adjacent to the receiving coil, the temperature of the light-emitting devices in this area does not change due to the heat released by the receiving coil. In other words, the temperature change of the light-emitting devices is smaller and does not cause accelerated aging.

[0065] In some embodiments, the first display area and the second display area belong to the same display screen. Figure 2 , Figure 2 Schematic diagram of application scenarios of certain embodiments of the present application. Figure 2 The terminal device 200 in the embodiment includes a display screen 210 and a receiving coil 220. The display screen is divided into a first display area 211 and a second display area 212. The first display area 211 is adjacent to and directly above the receiving coil 220. Therefore, when the receiving coil 220 generates heat due to normal operation, the light-emitting devices in the first display area 211 absorb this heat and heat up, thereby accelerating aging. Because the second display area 212 is farther away from the receiving coil 220, the temperature of the light-emitting devices within it does not rise due to the heat released by the receiving coil 220. In other words, the temperature rise of the light-emitting devices within it is smaller, and does not cause accelerated aging.

[0066] Furthermore, it is understood that the division method of the first display area and the second display area can be set according to actual circumstances. For example, in certain embodiments, when the terminal device is charging via a wireless charger, an external temperature measuring device will detect the temperature of the display screen to obtain the temperature distribution of the display screen. Then, based on the temperature distribution, the terminal device will use the higher temperature area of the display screen as the first display area and the lower temperature area as the second display area.

[0067] In other embodiments, please refer to Figure 3 , Figure 3 This is a schematic diagram of application scenarios of certain embodiments of this application. It should be understood that Figure 3 The figure shows the two displays of a foldable phone: the first display and the second display. The dotted circular line indicates the location of the heating coil on the display. That is, the receiving coil in the terminal device is located directly above or below the dotted circular line. The vertical dotted line indicates the boundary between the first and second display areas.

[0068] In such Figure 3 In the first display screen shown, the area of the display screen directly facing / adjacent to the receiving coil is divided into a first display area (i.e., the area to the right of the vertical dashed line). The driver circuit in the terminal device then detects the temperature of the light-emitting device in this area using a first temperature measuring element. The area of the display screen not directly facing / adjacent to the receiving coil is divided into a second display area (i.e., the area to the left of the vertical dashed line). The driver circuit in the terminal device then detects the temperature of the light-emitting device in this area using a second temperature measuring element.

[0069] In addition, it can be understood that the receiving coil in the embodiment of the present application is used to receive energy transmitted by the transmitting coil in the wireless charger to charge the battery of the terminal device.

[0070] Furthermore, it is understood that the specific components / devices of the first and second temperature measuring elements in the embodiments of the present application can be selected based on practical circumstances. In some embodiments, the first and second temperature measuring elements comprise temperature measuring resistors, such as positive temperature coefficient thermistors. In other embodiments, the first and second temperature measuring elements comprise temperature measuring sensors, such as platinum-rhodium thermocouples.

[0071] In addition, it can also be understood that the first light-emitting device and the second light-emitting device in the embodiment of the present application are related devices, and both belong to the same display screen of the terminal device, or both belong to different display screens of the same terminal device, but the different display screens are implemented based on the same light-emitting device, such as different display screens in a foldable screen mobile phone all contain the same light-emitting device.

[0072] Based on this, the luminescence compensation methods provided by this application include:

[0073] 0110. In response to the charging operation of the receiving coil, a first temperature of the first display area is detected based on the first temperature measuring element, and a second temperature of the second display area is detected based on the second temperature measuring element.

[0074] That is, when the terminal device of the embodiment of the present application starts charging, that is, when the receiving coil of the terminal device starts to receive the energy transmitted by the transmitting coil in the wireless charger to perform the charging operation of the battery, the terminal device will obtain the first temperature of the first display area based on the first temperature measuring element (that is, the temperature of the area adjacent to the receiving coil in the display screen), and at the same time, detect the second temperature of the second display area based on the second temperature measuring element (that is, the temperature of the area not adjacent to the receiving coil in the display screen) to determine the compensation value of the light-emitting device in the first display area based on the temperature difference.

[0075] It is understood that the specific process for obtaining the first and second temperatures may vary depending on the type / device of the first and second temperature measuring elements. In some embodiments, the first and second temperature measuring elements are temperature sensors capable of directly detecting temperature, so the terminal device directly reads the data from the first and second temperature measuring elements to obtain the first and second temperatures.

[0076] In other embodiments, please refer to Figure 4 , Figure 4 This is a flow chart of a luminescence compensation method of certain embodiments of the present application, that is, the first temperature measuring element and the second temperature measuring element of the embodiment of the present application both include thermistors, and the terminal device also includes a first current source, a first current detection unit, a second current source and a second current detection unit, the first current source, the first temperature measuring element and the first current detection unit are electrically connected in sequence, and the second current source, the second temperature measuring element and the second current detection unit are electrically connected in sequence.

[0077] Furthermore, the above 0110 includes:

[0078] 0111, in response to the charging operation of the receiving coil, detecting a current value of the first temperature measuring element using a first current detection unit as a first current value, and detecting a current value of the second temperature measuring element using a second current detection unit as a second current value;

[0079] 0112, using the first current value and the voltage corresponding to the first current source, calculate the resistance of the first temperature measuring element as the first resistance;

[0080] 0113, using the second current value and the voltage corresponding to the second current source, calculate the resistance of the second temperature measuring element as the second resistor;

[0081] 0114. Based on a preset correspondence between resistance and temperature, determine the temperature corresponding to the first resistance as the first temperature, and determine the temperature corresponding to the second resistance as the second temperature.

[0082] That is, when the first temperature measuring element and the second temperature measuring element are both implemented based on thermistors, the temperature cannot be read directly from the thermistor, but the resistance value of the thermistor and the temperature have a certain mapping relationship. Therefore, the embodiment of the present application additionally provides a first current source, a second current source, a first current detection unit and a second current detection unit in the terminal device.

[0083] To more clearly illustrate the implementation of this application, please refer to Figure 5 , Figure 5 This is a schematic diagram of a terminal device according to some embodiments of the present application. Figure 5 As shown, the terminal device according to the embodiment of the present application includes a display screen, a drive circuit, and a main controller. Because the first and second temperature measuring elements are implemented using thermistors, the components require less space and can therefore be placed directly inside the display screen. The first and second current sources, the first and second current detection units, are all located within the terminal device's drive circuit. The drive circuit also includes a temperature calculation module for calculating temperature. The main controller is configured to calculate luminous efficiency based on temperature and a luminous compensation value based on the luminous efficiency.

[0084] Furthermore, after the first current source, the first temperature measuring element and the first current detection unit are electrically connected in sequence, and the second current source, the second temperature measuring element and the second current detection unit are electrically connected in sequence, the first current source and the second current source provide voltage / current regulation for the first temperature measuring element and the second temperature measuring element respectively, and the first current detection unit and the second current detection unit detect the first current value and the second current value of the first temperature measuring element and the second temperature measuring element respectively.

[0085] Then, the first current detection unit and the second current detection unit respectively send the first current value and the second current value to the temperature calculation module in the driving circuit, so that the temperature calculation module calculates the ratio of the voltage corresponding to the first current source to the above-mentioned first current value based on "resistance equals the ratio of voltage to current" to obtain the first resistance corresponding to the first temperature measuring element, and calculates the ratio of the voltage corresponding to the first current source to the above-mentioned second current value to obtain the second resistance corresponding to the second temperature measuring element.

[0086] Finally, based on the predetermined correspondence / mapping relationship between the temperature and the resistance (of the first temperature measuring element / the second temperature measuring element), the temperature corresponding to the first resistance is obtained as the first temperature corresponding to the first display area, and the temperature corresponding to the second resistance is obtained as the second temperature corresponding to the second display area.

[0087] In this way, the present application enables the first temperature and the second temperature to be obtained based on the current and voltage, thereby ensuring the acquisition efficiency of the first temperature and the second temperature. Therefore, the calculation efficiency of the luminescence compensation value can be guaranteed, so that the terminal device can quickly complete the luminescence compensation.

[0088] Furthermore, it is understood that the preset correspondence between the resistance of the first / second temperature measuring element and temperature can be determined based on actual circumstances. For example, in some embodiments, the resistance of the first / second temperature measuring element at different temperatures is collected as samples, and a function fitting is performed based on the samples to obtain a correspondence / mapping relationship between temperature and resistance. In other embodiments, the manufacturer of the first / second temperature measuring element has obtained data on the correspondence between its resistance and temperature through experiments. Therefore, the terminal device receives and stores this data to understand the correspondence and read it at the appropriate time.

[0089] In some embodiments, in order to ensure the processing efficiency of the terminal device, the first temperature measuring element and the second temperature measuring element are devices / devices of the same type / model, so the correspondence between temperature and resistance is the same. Then, after obtaining the temperature, the terminal device can obtain different first resistances and second resistances based on a type of temperature-resistance correspondence.

[0090] In other embodiments, the first temperature measuring element and the second temperature measuring element are devices / devices of different types / models. Therefore, after the terminal device calculates the first resistance and the second resistance, it needs to determine the first temperature and the second temperature corresponding to the first temperature measuring element and the second temperature measuring element respectively based on different types of resistance-temperature correspondences.

[0091] It is also understood that the models and configurations of the first current detection unit, the second current detection unit, the first current source, and the second current source in the embodiments of the present application can be configured according to actual circumstances. For example, in some embodiments, the first current detection unit and the second current detection unit are both implemented using Hall current sensors.

[0092] In other embodiments, the first current detection unit and the second current detection unit are both implemented by an analog to digital converter (ADC). It is easy to understand that the first current detection unit and the second current detection unit in this embodiment can also be used to calculate the first resistance and the second resistance. Therefore, the first current detection unit and the second current detection unit can also send the first resistance and the second resistance to the temperature calculation module, respectively, so that the temperature calculation module calculates the first temperature and the second temperature.

[0093] Furthermore, it is also conceivable that the temperature calculation module in the embodiments of the present application can be implemented using any device. Furthermore, the temperature calculation module may not be provided, and the temperature calculation can be performed directly by the main controller in the terminal device. That is, the first current detection unit and the second current detection unit are electrically connected to the main controller of the terminal device, and the main controller reads the current value / resistance to complete the temperature calculation.

[0094] In addition, after completing the calculation of the first temperature and the second temperature, the temperature calculation module will send the first temperature and the second temperature to the main controller, so that the main controller calculates the luminous efficiency and the luminous compensation value based on the temperature, and sends the luminous compensation value to the display screen so that the display screen performs a luminous action based on the luminous compensation value.

[0095] Alternatively, the main controller reads the current value and resistance sent by the first current detection and second current detection units to complete the temperature calculation, then calculates the luminous efficiency and luminous compensation value, and finally sends the luminous compensation value to the display screen so that the display screen performs a luminous action based on the luminous compensation value.

[0096] 0120. Calculate a first luminous efficiency of the first light-emitting device based on the first temperature, and calculate a second luminous efficiency of the second light-emitting device based on the second temperature.

[0097] That is, the embodiment of the present application will determine the luminous efficiency corresponding to the light-emitting device at different temperatures based on a predetermined mapping relationship / correspondence relationship between the temperature and the luminous efficiency of the light-emitting device.

[0098] It is understood that the method for determining / obtaining the temperature-luminous efficiency mapping relationship of a light-emitting device can be configured based on actual circumstances. For example, in certain embodiments, after obtaining the luminous efficiency of a light-emitting device at multiple temperatures, the present application utilizes function fitting to determine the temperature-luminous efficiency mapping relationship. Furthermore, after obtaining the first and second temperatures, the fitted function can be used to quickly determine the first luminous efficiency of the light-emitting device at the first temperature and the second luminous efficiency at the second temperature.

[0099] In other embodiments, the first luminous efficiency and the second luminous efficiency are obtained / determined based on the corresponding relationship between different device parameters. That is, in some embodiments of the present application, after 0110, the following steps are further included:

[0100] An operating voltage of the first light-emitting device or the second light-emitting device is obtained.

[0101] Furthermore, the above 0120 includes:

[0102] Based on the operating voltage, calculating the current density of the first light-emitting device and the second light-emitting device when they are respectively operated at different luminous intensities, to obtain a first current density corresponding to the first light-emitting device and a second current density corresponding to the second light-emitting device;

[0103] determining, based on the first temperature and the operating voltage, device junction temperatures of the first light-emitting device and the second light-emitting device when they respectively operate at different current densities, to obtain a first device junction temperature corresponding to the first light-emitting device and a second device junction temperature corresponding to the second light-emitting device;

[0104] The luminous efficiency is calculated as a first luminous efficiency based on the first current density and the first device junction temperature, and the luminous efficiency is calculated as a second luminous efficiency based on the second current density and the first device junction temperature.

[0105] It should be noted that the device junction temperature indicates the actual operating temperature of the semiconductor device in the electronic device, and the current density indicates the strength and flow direction of the current at a certain point in the circuit.

[0106] Furthermore, since the current density of the light-emitting device is mapped to the luminous / bright light intensity and operating voltage of the light-emitting device, the terminal device of the embodiment of the present application calculates the current density of the first light-emitting device and the second light-emitting device when they perform light-emitting actions with different luminous intensities based on the operating voltage of the first light-emitting device / the second light-emitting device (the operating voltage of the first light-emitting device and the second light-emitting device is the same), thereby obtaining the first current density corresponding to the first light-emitting device and the second current density corresponding to the second light-emitting device.

[0107] It is understood that the mapping relationship between current density, luminous intensity, and operating voltage can be customized based on actual circumstances. For example, in certain embodiments, the present invention generates multiple samples by measuring the current density of a light-emitting device operating at different operating voltages and luminous intensities. Based on these multiple samples, a function is fitted to the mapping relationship between current density, luminous intensity, and operating voltage. Thus, after determining the operating voltage, the terminal device uses the fitted function to determine the current density at different luminous intensities.

[0108] In other embodiments, the mapping relationship among current density, luminous intensity and operating voltage can be referred to the following formula:

[0109]

[0110] Where, J x represents the current density when the light emitting device emits light at a grayscale of x, x represents the grayscale value, S represents the cross-sectional vector, k2, a and b all represent preset constants, and ELVDD represents the operating voltage.

[0111] It is understood that the above k2, a and b are used to represent the relevant characteristics of the light emitting device, and their values can be obtained by function fitting. It is also understood that the grayscale x represents the luminous intensity.

[0112] Furthermore, since there is a mapping relationship between the device junction temperature of the light-emitting device and the temperature of the light-emitting device (i.e., the first temperature and the second temperature) and the current density of the device, after obtaining the first current density and the second current density, the present application uses the temperature and current density to determine the device junction temperature of the first light-emitting device and the second light-emitting device when they operate at different current densities.

[0113] It can be understood that the mapping relationship between temperature, current density and device junction temperature can be set according to actual conditions. For example, in some embodiments, the first temperature and the first current density are both positively correlated with the first device junction temperature, and the second temperature and the second current density are both positively correlated with the second device junction temperature.

[0114] In certain embodiments, the temperature T α , current density J and device junction temperature T EL The relationship as Figure 6 As shown, Figure 6 This is a schematic diagram of the mapping relationship of certain implementation methods of the present application.

[0115] In certain embodiments, the present application detects the junction temperature of a light-emitting device when operating at different temperatures and current densities to obtain multiple samples containing temperature, current density, and device junction temperature. Function fitting is then performed on the samples to obtain a mapping relationship between temperature, current density, and device junction temperature. Thus, when a terminal device needs to determine the device junction temperature, the corresponding device junction temperature can be determined using the temperature, current density, and the fitted function. Consequently, based on the mapping relationship between the current density and device junction temperature of the light-emitting device and the luminous efficiency, the present application obtains a first luminous efficiency corresponding to a first temperature and a second luminous efficiency corresponding to a second temperature.

[0116] In some embodiments, the mapping relationship among luminous efficiency, current density, and device junction temperature can be referred to the following formula:

[0117]

[0118]

[0119]

[0120] η represents the luminous efficiency, x represents the grayscale value, B x and τ x They represent the first preset parameter and the second preset parameter respectively, t0 represents the sampling time, J xrepresents the current density of the light-emitting device when the grayscale is x, U, A and γ are all preset constants, k1 represents the Boltzmann constant, T x Indicates the junction temperature of the light-emitting device when it emits light at a grayscale of x, T α Indicates the first temperature or the second temperature.

[0121] It should be understood that the above-mentioned U, A and γ are all used to represent relevant characteristics of the light-emitting device, and their values can be obtained by function fitting.

[0122] It is also understandable that the calculation of η is directly related to t0. Moreover, since t0 represents the sampling time / sampling interval, the smaller the value of t0, the stronger the real-time performance of η.

[0123] In addition, it can be thought that B x and τ x Middle J x The calculation of can refer to the above formula, namely:

[0124]

[0125] In this way, the embodiment of the present application enables the determination of the luminous efficiency based on the operating voltage, current density and device junction temperature, so that the luminous efficiency can be obtained at a faster rate, thereby improving the execution efficiency of luminous compensation.

[0126] To more clearly illustrate the process of determining the formula corresponding to the mapping relationship between luminous efficiency, current density, and device junction temperature, a simple explanation of the above formula is provided here, namely:

[0127] First, in certain embodiments, the display screen of the present application is an electrochromic display of RGB (Red Green Blue) devices. Based on the study of the lifetime spectral energy distribution curve of the electrochromic display of RGB devices at a fixed current density in the related art, the following are obtained:

[0128]

[0129]

[0130] T EL =f(T a ,J)

[0131] Among them, T EL =f(T a , J) is obtained from the related research on the electrochromic display of RGB devices in the prior art, so the specific formula is not described again.

[0132] Then, in an ideal situation, that is, when all light-emitting devices on the display screen operate at the same current density, we have;

[0133]

[0134] Based on this formula, we can transform it into:

[0135]

[0136] in,

[0137] Then, considering that different light-emitting devices may operate in grayscales from 0 to 255 in actual situations, the ideal η(t) is expanded to obtain:

[0138]

[0139] 0130. Determine a luminous compensation value of the first light-emitting device based on the first luminous efficiency and the second luminous efficiency.

[0140] It is not difficult to understand that if the terminal device issues the same instruction to the first light-emitting device and the second light-emitting device so that both generate 100 candela (cd) of light, then: due to the natural aging of the device, the luminous efficiency of the second light-emitting device drops from 100% to 98%. Therefore, when the second light-emitting device emits light with the driving energy corresponding to 100 candela light, it will only generate 98 candela light. In addition to the factor of natural aging of the device, the first light-emitting device also ages rapidly due to high temperature, causing its luminous efficiency to drop from 100% to 90%. As a result, when the second light-emitting device emits light with the driving energy corresponding to 100 candela light, it will only generate 90 candela light.

[0141] In response to this situation, the embodiment of the present application will determine the driving energy corresponding to the intensity of light required for the first light-emitting device to perform a light-emitting action based on the difference in luminous efficiency between the first light-emitting device (i.e., the aging-accelerated device) and the second light-emitting device (the normally aged device) in order to produce the same intensity of light as when the second light-emitting device displays the same content.

[0142] In certain embodiments, in order to enable the terminal to accurately determine the corresponding luminous compensation value based on the difference between the first luminous efficiency and the second luminous efficiency, the present application collects the driving energy corresponding to the light emitting device generating light of different intensities at different luminous efficiencies to form multiple samples, and then fits the function / model of the luminous efficiency, driving energy, and light intensity through the samples, namely:

[0143] M C =f(L cd ,D)

[0144] D=η1-η2

[0145] Where M represents the driving energy compensation value (i.e., the luminous compensation value), L cd represents the light intensity, D represents the luminous efficiency difference, η1 represents the first luminous efficiency, and η2 represents the second luminous efficiency.

[0146] Therefore, when the first light emitting device and the second light emitting device both need to generate light of the same intensity, a compensation value is calculated based on the above formula to allow the first light emitting device to complete the light emitting action.

[0147] In other embodiments, the above 0130 includes:

[0148] A ratio of the second luminous efficiency to the first luminous efficiency is calculated as a luminous compensation value.

[0149] That is, the calculation formula of the luminous compensation value is as follows:

[0150]

[0151] Furthermore, when both the first light emitting device and the second light emitting device receive instructions and need to emit light through the driving energy of M to produce the same content / image, the second light emitting device directly performs the light emitting action with M, while the first light emitting device calculates M C The product of M and the compensated energy M is obtained C ×M, and then the first light emitting device will be M C ×M performs a light-emitting action.

[0152] In this way, the embodiments of the present application enable the luminescence compensation value and the compensated luminescence value to be determined at a faster rate, thereby improving the execution speed of luminescence compensation.

[0153] 0140. In response to a screen-lighting operation, control the first light-emitting device to perform a light-emitting action based on the light-emitting compensation value.

[0154] That is, when the terminal device receives a user-triggered screen-on operation, the terminal device, based on the luminescence compensation value calculated in the aforementioned steps, controls the first light-emitting device to obtain a compensated luminescence value / compensated luminescence driving energy based on the luminescence compensation value, and then performs the luminescence operation. Furthermore, after emitting light based on the luminescence compensation value, the first light-emitting device can emit light of the same intensity as the second light-emitting device.

[0155] In this way, when a terminal device such as a mobile phone is charged based on a wireless charger, a certain area of its display screen has a higher temperature due to its proximity to the receiving coil, which causes the aging of the light-emitting device to accelerate. In this way, the present application will determine the luminous compensation value of the light-emitting device in the higher temperature area based on the relationship / difference / difference in luminous efficiency between the light-emitting device in the normal temperature area (i.e., the second display area) and the light-emitting device in the higher temperature area (i.e., the first display area). Then, the light-emitting device in the higher temperature area can perform the luminous action based on the luminous compensation value. Therefore, the light-emitting devices in the higher temperature area and the normal temperature area can emit light of the same / similar intensity when displaying the same content, thereby avoiding the occurrence of uneven luminescence or afterimages on the display screen due to the different aging degrees of multiple light-emitting devices in the display screen, ensuring that users can get a good terminal device usage experience.

[0156] It's understandable that the luminous power / luminous efficiency of a light-emitting device is actually related to its remaining (usable) life. The longer the remaining life, the closer the luminous power is to the standard value; conversely, the shorter the remaining life, the worse the luminous power, and the greater the difference between the luminous power and the standard value. It's also understandable that the relationship between the temperature and luminous efficiency of a light-emitting device is actually the relationship between the temperature and the remaining (usable) life. That is, the higher the temperature, the faster the remaining life of the light-emitting device decreases.

[0157] It's not hard to imagine that the remaining life of a light-emitting device is not only affected by temperature but also by its usage time / luminescence time. That is, the longer the light-emitting device's luminescence time, the shorter its remaining life. Therefore, to further improve the effectiveness of compensation for light-emitting devices, in certain embodiments, the present application further determines the remaining life of the light-emitting device based on its usage time / operating time / luminescence time, and further determines the luminescence compensation value. That is, the luminescence compensation method provided by the present application further includes:

[0158] Acquire a first light emitting time of the first light emitting device and a second light emitting time of the second light emitting device;

[0159] calculating a remaining lifetime of the first light emitting device based on the first temperature and the first light emitting time as a first remaining lifetime, and calculating a remaining lifetime of the second light emitting device based on the second temperature and the second light emitting time as a second remaining lifetime;

[0160] A first reference compensation value of the first light emitting device is acquired based on the second remaining lifetime and the first remaining lifetime.

[0161] Furthermore, the above 0130 includes:

[0162] calculating a ratio of the second luminous efficiency to the first luminous efficiency to obtain a second reference compensation value;

[0163] Based on the first reference compensation value and the second reference compensation value, a light emission compensation value is obtained.

[0164] It should be noted that the relationship between the light-emitting time t of a light-emitting device and its remaining life can be referred to the following formula, namely:

[0165]

[0166] Where L0 is the standard / maximum remaining life, τ is the relationship with temperature T α Related variables.

[0167] To explain the meaning of the above formula more clearly, please refer to Figure 7 , Figure 7 This is a schematic diagram of the mapping relationship of certain embodiments of the present application, which shows the relationship between the remaining life L and the usage time t.

[0168] Furthermore, the terminal device records the lighting time / usage time t of the first light emitting device and the second light emitting device, and continuously detects the temperature T of the first light emitting device and the second light emitting device during charging. α When compensation is required, the luminous time t and temperature T α After inputting into the above formula to obtain the corresponding remaining lifetime, the embodiment of the present application will use the first remaining lifetime of the first light emitting device and the second remaining lifetime of the second light emitting device to determine the second reference compensation value.

[0169] For a clearer explanation of the above implementation, please refer to Figure 8 , Figure 8 This is a schematic diagram of a main controller for certain embodiments of the present application. The main controller's compensation algorithm module reads the relationship between service life, usage time, and temperature (i.e., the above formula) from the attenuation curve information module, receives charging information and temperature from other modules, calculates the luminous efficiency and remaining life, and then calculates the luminous compensation value. The image output module then controls the luminous compensation value to transmit the luminous compensation value to the display screen, so that the display screen completes luminous compensation according to the luminous compensation value.

[0170] It should be noted that the content transmitted by the charging information module is the charging start time and the charging end time, so that the compensation algorithm module knows when to start / end calculating the luminous efficiency based on temperature.

[0171] In some embodiments, the second reference compensation value is a ratio of the second remaining lifetime to the first remaining lifetime, and the first reference compensation value is a ratio of the second luminous efficiency to the first luminous efficiency. Furthermore, in some embodiments, the luminous compensation value is calculated by: multiplying the target luminous brightness of the first light-emitting device by the first reference compensation value to obtain a first product; multiplying the target luminous brightness of the first light-emitting device by the second reference compensation value to obtain a second product; and summing the first product and the second product to obtain the luminous compensation value.

[0172] In this way, the embodiment of the present invention allows the luminescence compensation process to take both the temperature and the luminescence time / operating time into consideration, making the luminescence compensation more effective and accurate.

[0173] Optionally, in order to further improve the accuracy of the luminescence compensation process, in some embodiments, the specific Figure 8 That is, after the terminal device under this embodiment calculates the luminous compensation value based on the remaining life and luminous efficiency, it will also read the weight corresponding to each position in the first display area in the weight information module, so that the image output module calculates the weight of each position and the product of the above-mentioned luminous compensation value to obtain a weighted value, and uses the weighted value as the luminous compensation value of each position. Thus, the display screen completes the luminous compensation of each position based on each luminous compensation value.

[0174] Optionally, in order to further ensure the effectiveness of the luminescence compensation process, in some embodiments, the specific Figure 8 That is, in this embodiment, the terminal device calculates the real-time L(t) as attenuation information and periodically stores it in a storage space (e.g., flash memory) as cumulative attenuation information / lifetime cumulative change information. Furthermore, when calculating the luminescence compensation value, the terminal device reads the cumulative attenuation information from the storage space, allowing the main controller to calculate a more efficient and accurate luminescence compensation value.

[0175] Optionally, to enable the terminal device to more accurately perform the luminous compensation work, in some embodiments, calculating the ratio of the second luminous efficiency to the first luminous efficiency as the luminous compensation value includes:

[0176] calculating a ratio of the second luminous efficiency to the first luminous efficiency as a reference compensation value of the first light emitting device;

[0177] Determining the weight of each position in the first display area based on a preset correspondence between the position and the weight;

[0178] The product of the reference compensation value and the weight of each position is calculated to obtain the luminescence compensation value of each position.

[0179] Furthermore, the above 0140 includes:

[0180] In response to the screen-lighting operation, the first light-emitting device is controlled to perform a light-emitting action at each position based on the light-emitting compensation value at each position.

[0181] It should be noted that due to the different shapes and positions of the coils, the temperatures of the light emitting devices at various positions in the first display area are different, and thus the aging degrees are also different. Figure 2 Taking the receiving coil 220 in the figure as an example, it is not difficult to imagine that in the first display area 211, compared with the first light-emitting device not facing the receiving coil 220, the temperature of the first light-emitting device facing the receiving coil 220 (that is, the first light-emitting device located directly above the receiving coil 220) will be higher, and thus the degree of aging will be more serious.

[0182] Therefore, the embodiment of the present application will determine the weights corresponding to different areas based on the preset relationship between weight and position; then, the reference compensation value obtained by the above steps is used to perform weighted calculations with the weights to obtain the luminous compensation value corresponding to each area.

[0183] It is not difficult to understand that Figure 2 For example, the weight corresponding to the position of the first light emitting device directly facing the receiving coil 220 should be higher, and the weight corresponding to the position of the first light emitting device not directly facing the receiving coil 220 should be lower.

[0184] In this way, the embodiment of the present application enables the terminal device to calculate the corresponding luminous compensation value based on the position of the light-emitting device, making the luminous compensation of the first light-emitting device more accurate, thereby ensuring the effectiveness of the luminous compensation.

[0185] Optionally, to improve the efficiency of light emission compensation, in certain embodiments, after step 0130, the method further includes:

[0186] The luminous compensation value is stored in the preset storage space.

[0187] Furthermore, the above 0140 includes:

[0188] In response to a screen-lighting operation, a light-emitting compensation value in a preset storage space is read, and the first light-emitting device is controlled to perform a light-emitting action based on the light-emitting compensation value.

[0189] It's easy to understand that temperature changes regularly and in real time, but the screen-on operation of a terminal device is only related to the user's subjective intention and is difficult to predict. If light compensation is performed based on a real-time triggering of the screen-on operation, since light compensation requires a certain amount of computing resources, compensation may not be timely or even affect the user's normal use of the terminal device.

[0190] In response to this situation, the terminal device of the embodiment of the present application stores the luminescence compensation value in a preset storage space after obtaining the luminescence compensation value based on temperature calculation. Then, when the terminal needs to perform a screen-lighting operation, the luminescence compensation value will be read from the preset storage space to complete the luminescence compensation.

[0191] Optionally, in some implementations, the preset storage space is a cache space, and thus, the data in the preset storage space will be cleared periodically, thereby avoiding a situation where the preset storage space stores too much data and wastes storage resources.

[0192] Optionally, in some embodiments, the preset storage space can only store one luminescence compensation value at the same time. Therefore, each time the terminal device calculates the luminescence compensation value, it will use the calculated luminescence compensation value to update the data in the preset storage space, thereby ensuring that the luminescence compensation value read each time is always the latest luminescence compensation value.

[0193] Optionally, in some embodiments, the preset storage space can store multiple luminescence compensation values at the same time. Therefore, each time the terminal device calculates a luminescence compensation value, it simply writes the luminescence compensation value into the preset storage space. In this case, the terminal device also writes a timestamp when writing the luminescence compensation value. Therefore, when the terminal device reads the luminescence compensation value, it always reads the luminescence compensation value with the latest timestamp to complete the luminescence compensation, thereby ensuring the validity of the luminescence compensation.

[0194] In this way, the implementation method of the present application enables the terminal device to complete the luminescence compensation work based on the stored luminescence compensation value, thereby avoiding the negative impact of needing to calculate the luminescence compensation value in real time according to the screen light operation, and improving the execution efficiency of luminescence compensation.

[0195] Please refer to Figure 9 The present invention further provides a terminal device 300, including a display screen 310, a driving circuit 320, and a main controller 330. The display screen includes a first display area and a second display area. The first display area includes a first light-emitting device. A first temperature measuring element and a receiving coil for charging are provided at a position corresponding to the first display area in the terminal device. The second display area includes a second light-emitting device. A second temperature measuring element is provided corresponding to the second display area in the terminal device.

[0196] The driving circuit 310 is configured to detect a first temperature of the first display area based on the first temperature measuring element and a second temperature of the second display area based on the second temperature measuring element in response to the charging operation of the receiving coil;

[0197] The main controller 320 is configured to calculate a first luminous efficiency of the first light-emitting device based on the first temperature, and calculate a second luminous efficiency of the second light-emitting device based on the second temperature; and determine a luminous compensation value of the first light-emitting device based on the first luminous efficiency and the second luminous efficiency;

[0198] The display screen 330 is configured to control the first light emitting device to perform a light emitting action based on the light emitting compensation value in response to a screen lighting operation.

[0199] The terminal device 300 provided in the embodiment of the present application can implement each process of the above-mentioned luminescence compensation method and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0200] The present application also provides a terminal device, which includes a memory and a processor. The memory stores a computer program, and when the computer program is executed by the processor, the above-mentioned luminous compensation method is implemented.

[0201] The present application also provides a computer-readable storage medium containing a computer program. When the computer program is executed by one or more processors, the one or more processors execute the luminescence compensation method of the present application.

[0202] The terminal device and computer-readable storage medium of the present application can enable a terminal device such as a mobile phone to be charged based on a wireless charger. When a certain area of its display screen is at a higher temperature due to its proximity to a receiving coil, thereby causing the aging of the light-emitting device to accelerate, the present application will determine the compensation value of the light-emitting device in the higher temperature area based on the relationship / difference / difference in luminous efficiency between the light-emitting device in the normal temperature area (i.e., the second display area) and the light-emitting device in the higher temperature area (i.e., the first display area). Then, the light-emitting device in the higher temperature area can perform the light-emitting action based on the compensation value, so the light-emitting devices in the higher temperature area and the normal temperature area can emit light of the same / similar intensity, thereby avoiding the occurrence of uneven lighting or ghosting on the display screen due to the different aging degrees of multiple light-emitting devices in the display screen, ensuring that users can get a good terminal device usage experience.

[0203] In the description of this specification, the reference terms "certain embodiments", "in an example", "exemplarily", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiments or examples are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are mutually inconsistent.

[0204] Any process or method description in a flowchart or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a specific logical function or process, and the scope of the preferred embodiments of the present application includes alternative implementations in which functions may be performed out of the order shown or discussed, including performing functions in a substantially simultaneous manner or in the reverse order depending on the functions involved, which should be understood by those skilled in the art to which the embodiments of the present application belong.

[0205] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A luminescence compensation method, characterized in that: Applied to a terminal device, the terminal device includes a display screen, the display screen includes a first display area and a second display area, the first display area includes a first light-emitting device, a first temperature measuring element and a receiving coil for charging are provided at a position corresponding to the first display area in the terminal device, the second display area includes a second light-emitting device, and a second temperature measuring element is provided at a position corresponding to the second display area in the terminal device, the method comprising: In response to a charging operation of the receiving coil, detecting a first temperature of the first display area based on the first temperature measuring element, and detecting a second temperature of the second display area based on the second temperature measuring element; calculating a first luminous efficiency of the first light-emitting device based on the first temperature, and calculating a second luminous efficiency of the second light-emitting device based on the second temperature; calculating a ratio of the second luminous efficiency to the first luminous efficiency as a luminous compensation value of the first light-emitting device; In response to a screen-lighting operation, the first light-emitting device is controlled to perform a light-emitting action based on the light-emitting compensation value.

2. The luminescence compensation method according to claim 1, wherein: The first temperature measuring element and the second temperature measuring element both include thermistors, and the terminal device further includes a first current source, a first current detection unit, a second current source, and a second current detection unit, wherein the first current source, the first temperature measuring element, and the first current detection unit are electrically connected in sequence, and the second current source, the second temperature measuring element, and the second current detection unit are electrically connected in sequence; The detecting, in response to the charging operation of the receiving coil, a first temperature of the first display area based on the first temperature measuring element, and a second temperature of the second display area based on the second temperature measuring element, comprises: In response to the charging operation of the receiving coil, detecting the current value of the first temperature measuring element using the first current detection unit as a first current value, and detecting the current value of the second temperature measuring element using the second current detection unit as a second current value; calculating the resistance of the first temperature measuring element as a first resistor using the first current value and the voltage corresponding to the first current source; calculating the resistance of the second temperature measuring element as a second resistor using the second current value and the voltage corresponding to the second current source; Based on a preset correspondence between resistance and temperature, the temperature corresponding to the first resistance is determined as the first temperature, and the temperature corresponding to the second resistance is determined as the second temperature.

3. The luminescence compensation method according to claim 1, wherein: After detecting the first temperature of the first display area based on the first temperature measuring element and detecting the second temperature of the second display area based on the second temperature measuring element in response to the charging operation of the receiving coil, the method further includes: obtaining an operating voltage of the first light-emitting device or the second light-emitting device; The calculating a first luminous efficiency of the first light-emitting device based on the first temperature, and calculating a second luminous efficiency of the second light-emitting device based on the second temperature, includes: Based on the operating voltage, calculating current densities of the first light-emitting device and the second light-emitting device when they respectively operate at different luminous intensities, to obtain a first current density corresponding to the first light-emitting device and a second current density corresponding to the second light-emitting device; determining, based on the first temperature and the operating voltage, device junction temperatures of the first light-emitting device and the second light-emitting device when they respectively operate at different current densities, to obtain a first device junction temperature corresponding to the first light-emitting device and a second device junction temperature corresponding to the second light-emitting device; The luminous efficiency is calculated based on the first current density and the first device junction temperature as the first luminous efficiency, and the luminous efficiency is calculated based on the second current density and the first device junction temperature as the second luminous efficiency.

4. The luminescence compensation method according to claim 3, characterized in that: The first temperature and the first current density are both positively correlated with the junction temperature of the first device, and the second temperature and the second current density are both positively correlated with the junction temperature of the second device.

5. The luminescence compensation method according to claim 3, wherein: The method further comprises: Acquire a first light emitting time of the first light emitting device and a second light emitting time of the second light emitting device; calculating a remaining lifetime of the first light-emitting device based on the first temperature and the first light-emitting time as a first remaining lifetime, and calculating a remaining lifetime of the second light-emitting device based on the second temperature and the second light-emitting time as a second remaining lifetime; acquiring a first reference compensation value of the first light emitting device based on the second remaining lifetime and the first remaining lifetime; The determining the luminous compensation value of the first light-emitting device based on the first luminous efficiency and the second luminous efficiency includes: determining a second reference compensation value of the first light emitting device based on the first light emitting efficiency and the second light emitting efficiency; The luminescence compensation value is obtained based on the first reference compensation value and the second reference compensation value.

6. The luminescence compensation method according to claim 1, wherein: The calculating a ratio of the second luminous efficiency to the first luminous efficiency as the luminous compensation value includes: calculating a ratio of the second luminous efficiency to the first luminous efficiency as a reference compensation value of the first light-emitting device; Determining the weight of each position in the first display area based on a preset correspondence between positions and weights; Calculating the product of the reference compensation value and the weight of each position to obtain the luminescence compensation value of each position; In response to the screen-lighting operation, controlling the first light-emitting device to perform a light-emitting action based on the light-emitting compensation value includes: In response to the screen-lighting operation, the first light-emitting device is controlled to perform a light-emitting action at each of the positions based on the light-emission compensation value at each of the positions.

7. A terminal device, characterized in that: The terminal device includes a display screen, a driving circuit, and a main controller. The display screen includes a first display area and a second display area. The first display area includes a first light-emitting device. A first temperature measuring element and a receiving coil for charging are provided at a position corresponding to the first display area in the terminal device. The second display area includes a second light-emitting device. A second temperature measuring element is provided corresponding to the second display area in the terminal device. The driving circuit is configured to detect a first temperature of the first display area based on the first temperature measuring element and a second temperature of the second display area based on the second temperature measuring element in response to a charging operation of the receiving coil; the main controller being configured to calculate a first luminous efficiency of the first light-emitting device based on the first temperature, and to calculate a second luminous efficiency of the second light-emitting device based on the second temperature; calculating a ratio of the second luminous efficiency to the first luminous efficiency as a luminous compensation value of the first light-emitting device; The display screen is used to control the first light-emitting device to perform a light-emitting action based on the light-emitting compensation value in response to a screen-lighting operation.

8. A terminal device, characterized in that: The terminal device includes a memory and a processor, wherein a computer program is stored in the memory, and when the computer program is executed by the processor, the luminescence compensation method according to any one of claims 1 to 6 is implemented.

9. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program, and when the computer program is executed by one or more processors, the luminescence compensation method according to any one of claims 1 to 6 is implemented.

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