Display module, display device, display brightness control method and storage medium

Abstract

The invention relates to a display module, display equipment, a display brightness control method and a storage medium. The display module comprises a display screen; the peak brightness compensation module is configured to compensate the current peak brightness of the display screen in response to the condition that the proportion of the display content of the display screen at the current moment is smaller than or equal to a preset threshold value, and target peak brightness is obtained; the display content proportion is used for representing a brightness area of the display screen at the current moment; and the display driving module is connected with the peak brightness compensation module and the display screen and is configured to drive the display screen to display the target peak brightness. According to the embodiment of the invention, the peak brightness of the display screen can be pointedly improved under the condition that the display load of the display module is not exceeded, so that the display screen is prevented from being overheated, the power consumption of the display module is reduced, and the user experience is improved.

Description

Technical Field

[0001] The present disclosure relates to a display field, and in particular to a display module, a display device, a display brightness control method and a storage medium. Background Art

[0002] In the field of optics, the higher the brightness and the higher the contrast, the wider the color gamut and the better the user's display experience. Therefore, at this stage, display devices such as mobile phones and organic light-emitting diode (OLED) TVs are pursuing higher brightness.

[0003] At present, in order to improve the display brightness of mobile phones and OLED TVs, it is necessary to increase the voltage across the light-emitting devices. As the voltage across the devices increases and the brightness rises, the current also needs to increase accordingly, which leads to increased power consumption of the display devices, further causing problems such as heating and screen burn-in. Summary of the invention

[0004] In order to overcome the problems existing in the related art, the present disclosure provides a display module, a display device, a display brightness control method and a storage medium.

[0005] According to a first aspect of an embodiment of the present disclosure, there is provided a display module, comprising at least:

[0006] Display screen;

[0007] A peak brightness compensation module is configured to compensate the current peak brightness of the display screen in response to the display content ratio of the display screen at the current moment being less than or equal to a preset threshold, so as to obtain a target peak brightness; the display content ratio is used to characterize the brightness area of ​​the display screen at the current moment;

[0008] The display driving module is connected to the peak brightness compensation module and the display screen, and is configured to drive the display screen to display the target peak brightness.

[0009] In some embodiments, the peak brightness compensation module includes:

[0010] A brightness storage register storing a preset peak brightness;

[0011] a comparison register configured to compare the preset threshold with the received display content proportion;

[0012] The compensation processing submodule is connected to the display driving module, the brightness storage register and the comparison register, and is configured to use the preset peak brightness as the target peak brightness when the display content ratio is equal to the preset threshold; and to compensate the current peak brightness based on the display content ratio when the display content ratio is less than the preset threshold to obtain the target peak brightness.

[0013] In some embodiments, the brightness storage register further stores a preset compensation brightness;

[0014] The compensation processing submodule is further configured to obtain a target compensation value based on the preset compensation brightness and the display content ratio; and determine the target peak brightness according to the current peak brightness and the target compensation value.

[0015] In some embodiments, the peak brightness compensation module includes a switch register; when the flag bit of the switch register is different, the peak brightness compensation module is in an on state or an off state.

[0016] According to a second aspect of an embodiment of the present disclosure, a display device is provided, including: the display module as described in the first aspect.

[0017] According to a third aspect of an embodiment of the present disclosure, a display brightness control method is provided, comprising at least:

[0018] When the peak brightness compensation module of the display device is in an on state, in response to the fact that the display content ratio of the display screen in the display device at the current moment is less than or equal to a preset threshold, the current peak brightness of the display screen is compensated to obtain a target peak brightness, and the display content ratio is used to characterize the brightness area of ​​the display screen at the current moment;

[0019] The display screen is driven to display the target peak brightness.

[0020] In some embodiments, in response to the fact that the proportion of displayed content on the display screen of the display device at the current moment is less than or equal to a preset threshold, compensating the current peak brightness of the display screen to obtain the target peak brightness includes:

[0021] When the display content ratio is equal to the preset threshold, the preset peak brightness is used as the target peak brightness; the preset peak brightness is greater than the current peak brightness;

[0022] When the display content ratio is less than the preset threshold, the current peak brightness is compensated based on the display content ratio to obtain the target peak brightness.

[0023] In some embodiments, compensating the current peak brightness based on the display content ratio to obtain the target peak brightness includes:

[0024] Obtaining a target compensation value based on a preset compensation brightness and the display content ratio;

[0025] The target peak brightness is determined according to the current peak brightness and the target compensation value.

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

[0027] Based on the sampled grayscale values ​​of a plurality of sampled pixel points in the display screen, determining a first group of sampled peak brightness and a second group of sampled peak brightness corresponding to the sampled grayscale values; the second group of sampled peak brightness is the peak brightness after compensating the first group of sampled peak brightness;

[0028] The preset compensation brightness of the display screen is determined according to the first group of sampled peak brightness and the second group of sampled peak brightness.

[0029] In some embodiments, the method further comprises:

[0030] When the display content ratio is greater than the preset threshold, the display screen is driven to display the current peak brightness.

[0031] According to a fourth aspect of an embodiment of the present disclosure, a display device is provided, comprising at least:

[0032] a compensation unit configured to, when a peak brightness compensation module of the display device is in an on state, compensate the current peak brightness of the display screen in response to a display content ratio of the display screen in the display device being less than or equal to a preset threshold at the current moment, to obtain a target peak brightness, wherein the display content ratio is used to characterize a brightness area of ​​the display screen at the current moment;

[0033] The driving unit is configured to drive the display screen to display the target peak brightness.

[0034] According to a fifth aspect of an embodiment of the present disclosure, a storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed, the steps of the display brightness control method according to the third aspect are implemented.

[0035] The technical solution provided by the embodiments of the present disclosure may have the following beneficial effects:

[0036] A display module, a display device, a display brightness control method and a storage medium provided by the embodiment of the present disclosure, the display module includes: a display screen; a peak brightness compensation module, configured to compensate the current peak brightness of the display screen in response to the display content proportion of the display screen at the current moment being less than or equal to a preset threshold, to obtain a target peak brightness; the display content proportion is used to characterize the brightness area of ​​the display screen at the current moment; a display driving module, connecting the peak brightness compensation module and the display screen, configured to drive the display screen to display the target peak brightness. In this way, the embodiment of the present disclosure adds a peak brightness compensation module to the display module, in response to the display content proportion of the display screen at the current moment being less than or equal to a preset threshold, to compensate the current peak brightness of the display screen, so that the display screen is displayed based on the compensated target peak brightness, so that the peak brightness of the display screen can be targetedly improved without exceeding the display load of the display module, so as to avoid overheating of the display screen, reduce the power consumption of the display module, and improve the user experience.

[0037] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0039] Figure 1 is a schematic diagram of a structure of a display module according to an exemplary embodiment Figure 1 .

[0040] Figure 2 The figure is a schematic diagram of grayscale value classification of a display screen in a display module according to an exemplary embodiment.

[0041] Figure 3 is a schematic diagram of a structure of a display module according to an exemplary embodiment Figure 2 .

[0042] Figure 4 The diagram is a schematic diagram showing gamma value debugging of a display screen in a display module according to an exemplary embodiment.

[0043] Figure 5 The present invention is a flow chart of a method for controlling display brightness according to an exemplary embodiment. Figure 1 .

[0044] Figure 6 The present invention is a flow chart of a method for controlling display brightness according to an exemplary embodiment. Figure 2 .

[0045] Figure 7 The figure is a structural block diagram of a display device according to an exemplary embodiment.

[0046] Figure 8 The figure is a schematic diagram showing the structure of a display device according to an exemplary embodiment. DETAILED DESCRIPTION

[0047] Exemplary embodiments will be described in detail herein, examples of which are shown in the accompanying drawings. When the following description refers to the drawings, the same numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0048] The technical solutions provided by various embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings.

[0049] In the related art, OLED is a current-driven device. If the brightness is increased, the voltage across the light-emitting device needs to be increased. The voltage across the light-emitting device is called the electroluminescent (EL) voltage. At the current industrial level, the voltage across an OLED screen with a brightness of 500 nits is generally 7.3 volts (V). In order to increase the brightness of the screen, for example, to 1400 nits, the voltage across the screen needs to be increased to about 9.8V. As the voltage across the screen increases and the brightness increases, the current also needs to increase accordingly, resulting in increased power consumption of the display device, further causing problems such as heating and screen burn-in.

[0050] Based on this, an embodiment of the present disclosure provides a display module. Figure 1 is a schematic diagram of a structure of a display module according to an exemplary embodiment Figure 1 ,like Figure 1 As shown, the display module 10 provided in the embodiment of the present disclosure may at least include:

[0051] Display screen 11;

[0052] The peak brightness compensation module 12 is configured to compensate the current peak brightness of the display screen 11 in response to the display content ratio of the display screen 11 at the current moment being less than or equal to a preset threshold, so as to obtain a target peak brightness; the display content ratio is used to characterize the brightness area of ​​the display screen 11 at the current moment;

[0053] The display driving module 13 is connected to the peak brightness compensation module 12 and the display screen 11 , and is configured to drive the display screen 11 to display the target peak brightness.

[0054] In the disclosed embodiment, the specific type of the display screen can be selected according to the actual application situation and is not limited here. For example, the display screen can be a display screen of a mobile phone, a display screen of a television, a display screen of a computer, and so on.

[0055] The peak brightness compensation module may be a module for compensating the peak brightness of the display screen. When the peak brightness compensation module is turned on, the peak brightness compensation module may determine whether to compensate for the current peak brightness of the display screen after judging the display content ratio of the display screen; and when the peak brightness compensation module is turned off, the display screen continues to display based on the current peak brightness, and the peak brightness compensation module does not process the current peak brightness.

[0056] Here, the display content ratio of the above-mentioned display screen can be the proportion of the grayscale image in the brightness area of ​​the display screen at the current moment in the entire display screen; the above-mentioned preset threshold can be pre-set in the above-mentioned display module, for example, the preset threshold can be 30%; the above-mentioned current peak brightness can be the maximum brightness value that the display screen can display at the current moment; the above-mentioned target peak brightness can be the brightness value obtained after the above-mentioned peak brightness compensation module compensates for the above-mentioned current peak brightness.

[0057] In one embodiment of the present disclosure, the specific process of the peak brightness compensation module obtaining the display content ratio of the display screen may include: obtaining the current grayscale values ​​of multiple pixels in the above-mentioned display screen; determining the target ratio corresponding to the current grayscale value based on the current grayscale value and a preset mapping relationship; multiplying the target ratio by the preset ratio of the current grayscale value to obtain the display content sub-ratio of the pixel; and summing the display content sub-ratios of multiple pixels to obtain the display content ratio of the display screen.

[0058] In this way, the display content ratio of the display screen can be obtained by calculating the current grayscale values, preset mapping relationships and preset ratios of multiple pixels in the display screen, thereby preparing for the subsequent peak brightness compensation module to compensate for the current peak brightness of the display screen, so as to achieve targeted improvement of the peak brightness of the display screen.

[0059] Here, the current grayscale value of the above-mentioned pixel point can be the grayscale value of the content displayed in the above-mentioned display screen at the current moment; the above-mentioned preset mapping relationship can be the mapping relationship between the grayscale value range of the above-mentioned pixel point and the preset ratio, and the preset ratio can be pre-set in the above-mentioned display module; the above-mentioned target ratio can be determined based on the current grayscale value and the preset mapping relationship between the grayscale value range and the preset ratio; the above-mentioned preset proportion can be pre-set in the above-mentioned display module based on the grayscale value of the pixel point; the above-mentioned display content sub-proportion can be the proportion of one pixel point among multiple pixels in the entire display screen.

[0060] The grayscale value is usually represented by a number ranging from 0 to 255, where 0 represents black, 255 represents white, and the intermediate numbers represent different levels of grayscale values.

[0061] In the present disclosure, Figure 2 As shown, the grayscale values ​​of pixels can be divided into four categories: the first category is 0 Gray (Gary), that is, absolute black with no display content, representing the proportion of 0 grayscale value; the second category is 1 Gray, representing the proportion of grayscale values ​​between 1 and 48; the third category is 48 Gray, representing the proportion of grayscale values ​​between 48 and 72; the fourth category is 72 Gray, representing the proportion of grayscale values ​​above 72.

[0062] For example, in the above display module, the preset proportion of pixels with grayscale values ​​ranging from 0 to 48 is 0, the preset proportion of pixels with grayscale values ​​ranging from 48 to 72 (excluding 48) is 0.5, and the preset proportion of pixels with grayscale values ​​greater than 72 is 1. Figure 2 As shown, the target proportion corresponding to the pixel points whose current grayscale value is the third category can be 20%, and the target proportion corresponding to the pixel points whose current grayscale value is the fourth category can be 10%. At this time, the display content proportion of the display screen can be 20%, that is, 20%*0.5+10%*1=20%; or, taking a display screen with a resolution of 1080*2400 as an example, if 50% of the pixels in the entire display screen have grayscale values ​​greater than 72, and 10% of the pixels have grayscale values ​​greater than 48 and less than or equal to 72, then the display content proportion of the display screen is 55%, that is, 50%*1+10%*0.5=55%.

[0063] In the embodiment of the present disclosure, the display driving module may include a driving circuit for driving the display screen to display based on the target peak brightness.

[0064] It can be understood that the display driver module and the peak brightness compensation module can both be arranged on a display driver chip (Display Driver Integrated Circuit Chip, DDIC).

[0065] The display module provided by the embodiment of the present disclosure may include: a display screen; a peak brightness compensation module, configured to compensate the current peak brightness of the display screen in response to the display content proportion of the display screen being less than or equal to a preset threshold at the current moment, to obtain a target peak brightness; the display content proportion is used to characterize the brightness area of ​​the display screen at the current moment; a display driving module, connecting the peak brightness compensation module and the display screen, and configured to drive the display screen to display the target peak brightness. In this way, the embodiment of the present disclosure adds a peak brightness compensation module to the display module, and in response to the display content proportion of the display screen being less than or equal to a preset threshold at the current moment, the current peak brightness of the display screen is compensated, so that the display screen is displayed based on the compensated target peak brightness, so that the peak brightness of the display screen can be targetedly improved without exceeding the display load of the display module, so as to avoid overheating of the display screen, reduce the power consumption of the display module, and improve the user experience.

[0066] Figure 3 is a schematic diagram of a structure of a display module according to an exemplary embodiment Figure 2 ,like Figure 3 As shown, the display module provided in the embodiment of the present disclosure has Figure 1 The peak brightness compensation module is further divided based on the display module shown. For example, the peak brightness compensation module includes: a brightness storage register, a comparison register and a compensation processing submodule.

[0067] like Figure 3 As shown, the peak brightness compensation module 12 provided in the embodiment of the present disclosure may include:

[0068] A brightness storage register 121 stores a preset peak brightness;

[0069] A comparison register 122, configured to compare the preset threshold with the received display content proportion;

[0070] The compensation processing submodule 123 is connected to the display driving module 13, the brightness storage register 121 and the comparison register 122, and is configured to use the preset peak brightness as the target peak brightness when the display content ratio is equal to the preset threshold; and to compensate the current peak brightness based on the display content ratio when the display content ratio is less than the preset threshold to obtain the target peak brightness.

[0071] In this way, the preset threshold value and the display content ratio can be compared through the comparison register in the peak brightness compensation module, and different processing can be performed based on different comparison results through the compensation processing sub-module to obtain the target peak brightness, so that the display screen can be displayed based on the target peak brightness, so that the peak brightness of the display screen can be compensated in a targeted manner without exceeding the display load of the display module, so as to achieve the improvement of the peak brightness of the display screen while avoiding overheating of the display screen, reducing the power consumption of the display module, and improving the user experience.

[0072] Among them, the above-mentioned brightness storage register can be a register for storing parameters such as preset peak brightness or preset compensation brightness; the above-mentioned preset peak brightness can be pre-stored in the above-mentioned brightness storage register, for example, the above-mentioned preset peak brightness can be 2500nit.

[0073] Here, the comparison register may be a register capable of performing simple logic operations; the compensation processing submodule may be a submodule in the peak brightness compensation module that performs compensation processing on the current peak brightness of the display screen.

[0074] It can be understood that the comparison register can output multiple comparison results; the multiple comparison results may include: the display content ratio is greater than the preset threshold, the display content ratio is equal to the preset threshold, and the display content ratio is less than the preset threshold.

[0075] In one embodiment of the present disclosure, when the comparison result obtained by the comparison register is that the proportion of the above-mentioned display content is greater than the above-mentioned preset threshold, the above-mentioned display driving module can directly drive the above-mentioned display screen to display the above-mentioned current peak brightness, and the above-mentioned compensation processing submodule no longer performs compensation processing on the current peak brightness.

[0076] When the comparison result obtained by the comparison register is that the display content ratio is equal to the preset threshold value, the compensation processing submodule can use the preset peak brightness obtained from the brightness storage register as the target peak brightness of the display screen, and send the target peak brightness to the display driver module; when the comparison result obtained by the comparison register is that the display content ratio is less than the preset threshold value, the compensation processing submodule can perform compensation processing on the current peak brightness based on the display content ratio to obtain the target peak brightness, and send the target peak brightness to the display driver module.

[0077] In some embodiments, Figure 3 As shown, the brightness storage register 121 also stores a preset compensation brightness;

[0078] The compensation processing submodule 123 is further configured to obtain a target compensation value based on the preset compensation brightness and the display content ratio; and determine the target peak brightness according to the current peak brightness and the target compensation value.

[0079] In this way, when the comparison result obtained by the comparison register is that the display content ratio is less than the preset threshold value, the compensation processing sub-module can calculate the target peak brightness based on the preset compensation brightness stored in the brightness storage register and the display content ratio, so that the display screen can be displayed based on the target peak brightness, thereby being able to specifically increase the peak brightness of the display screen without exceeding the display load of the display module, so as to avoid overheating of the display screen, reduce the power consumption of the display module, and improve the user experience.

[0080] In the embodiment of the present disclosure, the preset compensation brightness may be a parameter obtained by adjusting the gamma value (Gamma) of the display module before leaving the factory.

[0081] Gamma is a parameter used to characterize the brightness response characteristics of the display screen; Gamma describes the nonlinear relationship between the input signal (such as a digital image file) and its brightness output when the display screen displays an image. The gamma value is a numerical value, usually between 1.8 and 2.6 (for example, the gamma value is 2.2). Its main function is to calibrate the brightness and contrast of the display screen to achieve a more natural and realistic image display effect.

[0082] Understandably, if Figure 4 As shown, in the production stage of the display module, in addition to the conventional Gamma burning, a set of special Gamma for the peak brightness compensation module will be added. The debugging method can be: when the display screen displays a black background, the central 30% area will display a 255Gray white screen, and the peak brightness can be set to 2500 to 3200nit. This debugging method can obtain the peak brightness Gamma curve. Based on the conventional Gamma curve and the peak brightness Gamma curve, the preset compensation brightness can be calculated by linear interpolation.

[0083] Specifically, multiple sampled grayscale values ​​and a first group of sampled peak brightnesses corresponding to the multiple sampled grayscale values ​​can be obtained from a conventional Gamma curve, multiple sampled grayscale values ​​and a second group of sampled peak brightnesses corresponding to the multiple sampled grayscale values ​​can be obtained from a peak brightness Gamma curve, and the first group of sampled peak brightnesses and the second group of sampled peak brightnesses can be calculated based on linear interpolation to obtain a preset compensation brightness.

[0084] In the embodiment of the present disclosure, the target compensation value may be a result calculated based on a preset compensation brightness and a display content ratio.

[0085] Here, determining the target peak brightness according to the current peak brightness and the target compensation value may include, but is not limited to: adding the current peak brightness and the target compensation value to obtain the target peak brightness.

[0086] Exemplarily, when the current peak brightness of the display screen is 500 nit, the preset compensation brightness is 3000 nit, and the display content accounts for 20%, the target compensation value can be 2400 nit, that is, 3000*(1-20%)=2400; and the target peak brightness can be 2900 nit, that is, 2400+500=2900.

[0087] In one embodiment of the present disclosure, the peak brightness compensation module includes a switch register; when the flag bit of the switch register is different, the peak brightness compensation module is in an on state or an off state.

[0088] In this way, the display device where the display module is located can control the state of the peak brightness compensation module by controlling the flag bit of the switch register, thereby being able to dynamically compensate for the peak brightness of the display screen.

[0089] The switch register may be a register for controlling whether the peak brightness compensation module works.

[0090] It can be understood that the flag bit of the switch register may include 1 and 0; for example, when the flag bit of the switch register is 1, the peak brightness compensation module is in the on state; when the flag bit of the switch register is 0, the peak brightness compensation module is in the off state.

[0091] An embodiment of the present disclosure provides a display device, which may include: the display module described in the above embodiment of the present disclosure.

[0092] Here, the above-mentioned display device can be any device with a display screen, such as a mobile phone, a tablet computer (Tablet Personal Computer), a personal digital assistant (Personal Digital Assistant, PDA), a mobile Internet device (Mobile Internet Device, MID), a wearable device (Wearable Device), etc.

[0093] Figure 5 The present invention is a flow chart of a method for controlling display brightness according to an exemplary embodiment. Figure 1 ,like Figure 5 As shown, the display brightness control method provided by the embodiment of the present disclosure is applied to a display device and may at least include the following steps:

[0094] Step 510: When the peak brightness compensation module of the display device is in an on state, in response to the fact that the display content ratio of the display screen in the display device at the current moment is less than or equal to a preset threshold, the current peak brightness of the display screen is compensated to obtain a target peak brightness, wherein the display content ratio is used to characterize the brightness area of ​​the display screen at the current moment;

[0095] Step 520: Drive the display screen to display the target peak brightness.

[0096] In step 510, when the display device is in a high dynamic range imaging (HDR) mode or the user needs to turn on the high brightness mode of the display device, the display device can turn on the peak brightness compensation module by controlling the flag bit of the switch register in the peak brightness compensation module.

[0097] In an embodiment of the present disclosure, in response to the fact that the proportion of display content on the display screen of the display device at the current moment is less than or equal to a preset threshold, the current peak brightness of the display screen is compensated to obtain the target peak brightness. The display brightness control method may also include: when the peak brightness compensation module of the display device is in an on state, obtaining the proportion of display content on the display screen of the display device at the current moment.

[0098] It should be noted that the step of obtaining the display content proportion may be executed by an application processor (AP) in the above display device.

[0099] Specifically, in one embodiment of the present disclosure, the obtaining of the display content proportion of the display screen of the display module at the current moment includes:

[0100] Obtaining current grayscale values ​​of multiple pixels in the display screen;

[0101] Based on the current grayscale value and a preset mapping relationship, determining a target ratio corresponding to the current grayscale value; the preset mapping relationship is a mapping relationship between the grayscale value range of the pixel point and the preset ratio;

[0102] Based on the preset ratio of the target ratio and the current grayscale value, the display content ratio of the display screen is determined.

[0103] Wherein, the determining the display content proportion of the display screen based on the preset proportion of the target proportion and the current grayscale value may include:

[0104] Multiplying the target ratio by the preset ratio to obtain the display content sub-ratio of the pixel point;

[0105] The display content sub-proportions of the plurality of pixels are summed to obtain the display content proportion of the display screen.

[0106] In this way, the display content ratio of the display screen can be obtained by calculating the current grayscale values, preset mapping relationships and preset ratios of multiple pixels in the display screen, thereby preparing for the subsequent peak brightness compensation module to compensate for the current peak brightness of the display screen, so as to achieve targeted improvement of the peak brightness of the display screen.

[0107] In step 520, the step of driving the display screen to display the target peak brightness may be performed by a display driving module of the display module in the above-mentioned display device.

[0108] The display brightness control method provided by the embodiment of the present disclosure, when the peak brightness compensation module of the display device is in the turned-on state, in response to the fact that the display content ratio of the display screen in the display device at the current moment is less than or equal to a preset threshold, the current peak brightness of the display screen is compensated to obtain a target peak brightness, wherein the display content ratio is used to characterize the brightness area of ​​the display screen at the current moment; and the display screen is driven to display the target peak brightness. In this way, the embodiment of the present disclosure adds a peak brightness compensation module to the display device, and when the peak brightness compensation module is in the turned-on state, in response to the fact that the display content ratio of the display screen at the current moment is less than or equal to a preset threshold, the current peak brightness of the display screen is compensated to drive the display screen to display based on the compensated target peak brightness, so that the peak brightness of the display screen can be targetedly increased without exceeding the display load of the display device, so as to avoid overheating of the display screen, reduce the power consumption of the display device, and improve the user experience.

[0109] In some embodiments, in step 510, in response to the current moment, the display content proportion of the display screen in the display device is less than or equal to the preset threshold, the current peak brightness of the display screen is compensated, and the specific process of obtaining the target peak brightness may include:

[0110] When the display content ratio is equal to the preset threshold, the preset peak brightness is used as the target peak brightness; the preset peak brightness is greater than the current peak brightness;

[0111] When the display content ratio is less than the preset threshold, the current peak brightness is compensated based on the display content ratio to obtain the target peak brightness.

[0112] In this way, the target peak brightness can be obtained by performing different processing on different comparison results of the preset threshold and the display content ratio, so that the display screen can be displayed based on the target peak brightness, thereby being able to compensate for the peak brightness of the display screen in a targeted manner without exceeding the display load of the display device, so as to achieve the improvement of the peak brightness of the display screen while avoiding overheating of the display screen, reducing the power consumption of the display device, and improving the user experience.

[0113] In one embodiment of the present disclosure, the specific process of compensating the current peak brightness based on the display content ratio to obtain the target peak brightness may include:

[0114] Obtaining a target compensation value based on a preset compensation brightness and the display content ratio;

[0115] The target peak brightness is determined according to the current peak brightness and the target compensation value.

[0116] In this way, when the display content ratio is less than a preset threshold, the target peak brightness can be calculated by pre-setting the compensation brightness and the display content ratio, so that the display screen can be displayed based on the target peak brightness. This can increase the peak brightness of the display screen in a targeted manner without exceeding the display load of the display device, so as to avoid overheating of the display screen, reduce the power consumption of the display device, and improve the user experience.

[0117] The specific process of determining the target peak brightness according to the current peak brightness and the target compensation value may include but is not limited to: adding the current peak brightness and the target compensation value to obtain the target peak brightness.

[0118] It can be understood that, in some embodiments, the display brightness control method may further include:

[0119] When the display content ratio is greater than the preset threshold, the display screen is driven to display the current peak brightness.

[0120] In this way, when the display content ratio is greater than a preset threshold, the peak brightness compensation module in the display device does not process the current peak brightness of the display screen, but directly outputs it to the display driver module of the display device to drive the display screen to display the current peak brightness, thereby ensuring that the current peak brightness of the display screen does not exceed the display load of the display device.

[0121] Exemplarily, the preset threshold value pre-set by the above-mentioned display device is 30%, and the current peak brightness of the above-mentioned display screen is 500nit; when the above-mentioned preset peak brightness is 2500nit and the above-mentioned display content accounts for 30%, the above-mentioned target peak brightness can be 2500nit; when the above-mentioned preset compensation brightness is 3000nit and the above-mentioned display content accounts for 20%, the above-mentioned target compensation value can be 2400nit, that is, 3000*(1-20%)=2400; and the above-mentioned target peak brightness can be 2900nit, that is, 2400+500=2900; when the above-mentioned display content accounts for 55%, the peak brightness of the display screen displayed by the above-mentioned display device driving the display device is 500nit.

[0122] In some embodiments, the display brightness control method may further include:

[0123] Based on the sampled grayscale values ​​of a plurality of sampled pixel points in the display screen, determining a first group of sampled peak brightness and a second group of sampled peak brightness corresponding to the sampled grayscale values; the second group of sampled peak brightness is the peak brightness after compensating the first group of sampled peak brightness;

[0124] The preset compensation brightness of the display screen is determined according to the first group of sampled peak brightness and the second group of sampled peak brightness.

[0125] In this way, the first group of sampled peak brightness and the second group of sampled peak brightness can be obtained by sampling the sampled grayscale values ​​of multiple sampling pixel points in the display screen, so as to calculate the preset compensation brightness of the display screen, thereby preparing to compensate for the current peak brightness of the display screen when the proportion of subsequent display content is less than the preset threshold, so as to achieve targeted improvement of the peak brightness of the display screen while reducing the power consumption of the display module.

[0126] The first group of sampled peak brightness can be obtained by sampling from a conventional Gamma curve based on a plurality of sampled gray values; the second group of sampled peak brightness can be obtained by sampling from a peak brightness Gamma curve based on a plurality of sampled gray values.

[0127] Here, the specific process of determining the preset compensation brightness of the display screen based on the first group of sampled peak brightness and the second group of sampled peak brightness may include: calculating the first group of sampled peak brightness and the second group of sampled peak brightness based on linear interpolation to obtain the preset compensation brightness.

[0128] Figure 6 A flow chart of a display brightness control method provided in an embodiment of the present disclosure Figure 2 .like Figure 6As shown, the display brightness control method provided in the embodiment of the present disclosure is only an example and not a limitation, and is intended to facilitate those skilled in the art to better understand the technical solution of the present disclosure. Figure 6 The display brightness control method provided by the embodiment of the present disclosure may specifically include the following steps:

[0129] Step 601: When a peak brightness compensation module of a display device is turned on, obtain current grayscale values ​​of a plurality of pixels in a display screen of the display device;

[0130] Step 602: Determine a target ratio corresponding to the current gray value based on the current gray value and a preset mapping relationship; the preset mapping relationship is a mapping relationship between the gray value range of the pixel point and the preset ratio;

[0131] Step 603: determining the display content ratio of the display screen based on the preset ratio of the target ratio and the current grayscale value; the display content ratio is used to represent the brightness area of ​​the display screen at the current moment;

[0132] Step 604: When the display content ratio is greater than a preset threshold, drive the display screen to display the current peak brightness;

[0133] Step 605: When the display content proportion is equal to the preset threshold, the preset peak brightness is used as the target peak brightness; the preset peak brightness is greater than the current peak brightness;

[0134] Step 606: when the display content ratio is less than the preset threshold, obtain a target compensation value based on the preset compensation brightness and the display content ratio;

[0135] Step 607: determining the target peak brightness according to the current peak brightness and the target compensation value;

[0136] Step 608: Drive the display screen to display the target peak brightness.

[0137] It should be noted that step 604, step 605, and steps 606-607 are three parallel situations in the embodiment of the present disclosure; that is, after step 603, step 604 may be executed, or step 605 may be executed, or steps 606-607 may be executed.

[0138] The display brightness control method provided by the embodiment of the present disclosure can add a peak brightness compensation module in the display device. When the peak brightness compensation module is in an on state, the peak brightness displayed by the display screen is determined by comparing different comparison results between a preset threshold and the display content ratio, thereby selectively driving the display screen to display different peak brightnesses, and better ensuring that the current peak brightness of the display screen does not exceed the display load of the display device; at the same time, in response to the display content ratio being less than or equal to the preset threshold, the current peak brightness of the display screen is compensated to drive the display screen to display based on the compensated target peak brightness, thereby being able to specifically improve the peak brightness of the display screen to avoid overheating of the display screen, reduce the power consumption of the display device, and improve the user experience.

[0139] Figure 7 This is a structural block diagram of a display device provided by an embodiment of the present disclosure. Figure 7 The display device provided by the embodiment of the present disclosure may include: a compensation unit 710 and a driving unit 720.

[0140] The compensation unit 710 is configured to compensate the current peak brightness of the display screen in the display device in response to the fact that the display content ratio of the display screen is less than or equal to a preset threshold at the current moment, and obtain the target peak brightness when the peak brightness compensation module of the display device is in an on state, wherein the display content ratio is used to characterize the brightness area of ​​the display screen at the current moment;

[0141] The driving unit 720 is configured to drive the display screen to display the target peak brightness.

[0142] The display device provided by the embodiment of the present disclosure, when the peak brightness compensation module of the display device is in an on-state, in response to the fact that the proportion of display content on the display screen in the display device at the current moment is less than or equal to a preset threshold, compensates for the current peak brightness of the display screen to obtain a target peak brightness, wherein the display content proportion is used to characterize the brightness area of ​​the display screen at the current moment; and drives the display screen to display the target peak brightness. In this way, the embodiment of the present disclosure adds a peak brightness compensation module to the display device, and when the peak brightness compensation module is in an on-state, in response to the fact that the proportion of display content on the display screen at the current moment is less than or equal to a preset threshold, compensates for the current peak brightness of the display screen to drive the display screen to display based on the compensated target peak brightness, thereby being able to specifically increase the peak brightness of the display screen without exceeding the display load of the display device, thereby avoiding overheating of the display screen, reducing the power consumption of the display device, and improving the user experience.

[0143] for Figure 7In the technical solution shown, in a possible implementation method, the compensation unit 710 can be specifically configured as follows: when the display content ratio is equal to the preset threshold, the preset peak brightness is used as the target peak brightness; the preset peak brightness is greater than the current peak brightness; when the display content ratio is less than the preset threshold, the current peak brightness is compensated based on the display content ratio to obtain the target peak brightness.

[0144] for Figure 7 In the technical solution shown, in a possible implementation, the compensation unit 710 can be specifically configured to: obtain a target compensation value based on a preset compensation brightness and the display content ratio; and determine the target peak brightness according to the current peak brightness and the target compensation value.

[0145] for Figure 7 In the technical solution shown, in a possible implementation, the display device may also include: a determination unit, configured to determine a first group of sampling peak brightness and a second group of sampling peak brightness corresponding to the sampling grayscale values ​​of multiple sampling pixel points in the display screen; the second group of sampling peak brightness is the peak brightness after compensating the first group of sampling peak brightness; and the preset compensated brightness of the display screen is determined according to the first group of sampling peak brightness and the second group of sampling peak brightness.

[0146] for Figure 7 In a possible implementation of the technical solution shown, the driving unit 720 may also be configured to: drive the display screen to display the current peak brightness when the display content proportion is greater than the preset threshold.

[0147] It should be noted that the display device provided in the embodiment of the present disclosure corresponds to the display brightness control method mentioned above. The relevant contents can refer to the description of the display brightness control method above, which will not be repeated here.

[0148] Figure 8 8 is a schematic diagram of a display device according to an exemplary embodiment. For example, the display device 800 may be a mobile phone, a computer, a digital broadcast terminal, a message transceiver device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, a wearable device, etc.

[0149] Reference Figure 8 , the display device 800 may include one or more of the following components: a processing component 802 , a memory 804 , a power component 806 , a multimedia component 808 , an audio component 810 , an input / output (I / O) interface 812 , a sensor component 814 , and a communication component 816 .

[0150] The processing component 802 generally controls the overall operation of the display device 800, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 802 may include one or more processors 820 to execute instructions to complete all or part of the steps of the above-mentioned method. In addition, the processing component 802 may include one or more modules to facilitate the interaction between the processing component 802 and other components. For example, the processing component 802 may include a multimedia module to facilitate the interaction between the multimedia component 808 and the processing component 802.

[0151] The memory 804 is configured to store various types of data to support operations on the display device 800. Examples of such data include instructions for any application or method operating on the display device 800, contact data, phone book data, messages, pictures, videos, etc. The memory 804 can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic disk or optical disk.

[0152] The power supply component 806 provides power to the various components of the display device 800. The power supply component 806 can include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the display device 800.

[0153] The multimedia component 808 includes a screen that provides an output interface between the display device 800 and the user. In some embodiments, the screen may include a liquid crystal display (LCD) and a touch panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from the user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundaries of the touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front camera and / or a rear camera. When the display device 800 is in an operating mode, such as a shooting mode or a video mode, the front camera and / or the rear camera may receive external multimedia data. Each front camera and the rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

[0154] The audio component 810 is configured to output and / or input audio signals. For example, the audio component 810 includes a microphone (MIC), and when the display device 800 is in an operating mode, such as a call mode, a recording mode, and a speech recognition mode, the microphone is configured to receive an external audio signal. The received audio signal can be further stored in the memory 804 or sent via the communication component 816. In some embodiments, the audio component 810 also includes a speaker for outputting audio signals.

[0155] I / O interface 812 provides an interface between processing component 802 and peripheral interface modules, such as keyboards, click wheels, buttons, etc. These buttons may include but are not limited to: home button, volume button, start button, and lock button.

[0156] The sensor assembly 814 includes one or more sensors for providing various aspects of status evaluation for the display device 800. For example, the sensor assembly 814 can detect the open / closed state of the display device 800, the relative positioning of the components, such as the display and keypad of the display device 800, and the sensor assembly 814 can also detect the position change of the display device 800 or a component of the display device 800, the presence or absence of contact between the user and the display device 800, the orientation or acceleration / deceleration of the display device 800 and the temperature change of the display device 800. The sensor assembly 814 can include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 814 can also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 can also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor or a temperature sensor.

[0157] The communication component 816 is configured to facilitate wired or wireless communication between the display device 800 and other devices. The display device 800 can access a wireless network based on a communication standard, such as WiFi, 3G or 5G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast-related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 also includes a near field communication (NFC) module to facilitate short-range communication. For example, the NFC module can be implemented based on radio frequency identification (RFID) technology, infrared data association (IrDA) technology, ultra-wideband (UWB) technology, Bluetooth (BT) technology and other technologies.

[0158] In an exemplary embodiment, the display device 800 may be implemented by one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components to perform the above methods.

[0159] In an exemplary embodiment, a storage medium including instructions is also provided, such as a memory 804 including instructions, and the instructions can be executed by a processor 820 of the display device 800 to perform the above method. For example, the storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, etc.

[0160] A storage medium, when the instructions in the storage medium are executed by a processor of a display device, enables the display device to execute a display brightness control method, the method comprising: when a peak brightness compensation module of the display device is in an on state, in response to the fact that the display content ratio of a display screen in the display device at the current moment is less than or equal to a preset threshold, compensating the current peak brightness of the display screen to obtain a target peak brightness, wherein the display content ratio is used to characterize the brightness area of ​​the display screen at the current moment; and driving the display screen to display the target peak brightness.

[0161] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0162] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the present disclosure that follow the general principles of the present disclosure and include common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the following claims.

[0163] It should be understood that the present disclosure is not limited to the exact structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

1. A display module, characterized in that: include: Display screen; A peak brightness compensation module is configured to compensate for a current peak brightness of the display screen in response to a display content proportion of the display screen being less than or equal to a preset threshold at a current moment, so as to obtain a target peak brightness; The display content ratio is used to represent the brightness area of ​​the display screen at the current moment; The display driving module is connected to the peak brightness compensation module and the display screen, and is configured to drive the display screen to display the target peak brightness.

2. The display module according to claim 1, characterized in that: The peak brightness compensation module comprises: A brightness storage register storing a preset peak brightness; a comparison register configured to compare the preset threshold with the received display content proportion; The compensation processing submodule is connected to the display driving module, the brightness storage register and the comparison register, and is configured to use the preset peak brightness as the target peak brightness when the display content ratio is equal to the preset threshold; and to compensate the current peak brightness based on the display content ratio when the display content ratio is less than the preset threshold to obtain the target peak brightness.

3. The display module according to claim 2, characterized in that: The brightness storage register also stores a preset compensation brightness; The compensation processing submodule is further configured to obtain a target compensation value based on the preset compensation brightness and the display content ratio; and determine the target peak brightness according to the current peak brightness and the target compensation value.

4. The display module according to any one of claims 1 to 3, characterized in that: The peak brightness compensation module includes a switch register; when the flag bit of the switch register is different, the peak brightness compensation module is in an on state or a off state.

5. A display device, characterized in that: include: A display module as claimed in any one of claims 1 to 4.

6. A display brightness control method, characterized in that: The method comprises: When the peak brightness compensation module of the display device is in an on state, in response to the fact that the display content ratio of the display screen in the display device at the current moment is less than or equal to a preset threshold, the current peak brightness of the display screen is compensated to obtain a target peak brightness, and the display content ratio is used to characterize the brightness area of ​​the display screen at the current moment; The display screen is driven to display the target peak brightness.

7. The method according to claim 6, characterized in that In response to the fact that the proportion of displayed content on the display screen of the display device at the current moment is less than or equal to a preset threshold, compensating the current peak brightness of the display screen to obtain a target peak brightness, including: When the display content ratio is equal to the preset threshold, the preset peak brightness is used as the target peak brightness; the preset peak brightness is greater than the current peak brightness; When the display content ratio is less than the preset threshold, the current peak brightness is compensated based on the display content ratio to obtain the target peak brightness.

8. The method according to claim 7, characterized in that The compensating the current peak brightness based on the display content ratio to obtain the target peak brightness includes: Obtaining a target compensation value based on a preset compensation brightness and the display content ratio; The target peak brightness is determined according to the current peak brightness and the target compensation value.

9. The method according to claim 8, characterized in that The method further comprises: Based on the sampled grayscale values ​​of a plurality of sampled pixel points in the display screen, determining a first group of sampled peak brightness and a second group of sampled peak brightness corresponding to the sampled grayscale values; the second group of sampled peak brightness is the peak brightness after compensating the first group of sampled peak brightness; The preset compensation brightness of the display screen is determined according to the first group of sampled peak brightness and the second group of sampled peak brightness.

10. The method according to any one of claims 6 to 9, characterized in that: The method further comprises: When the display content ratio is greater than the preset threshold, the display screen is driven to display the current peak brightness.

11. A display device, characterized in that: include: a compensation unit configured to, when a peak brightness compensation module of the display device is in an on state, compensate the current peak brightness of the display screen in response to a display content ratio of the display screen in the display device at the current moment being less than or equal to a preset threshold, to obtain a target peak brightness, wherein the display content ratio is used to characterize a brightness area of ​​the display screen at the current moment; The driving unit is configured to drive the display screen to display the target peak brightness.

12. A storage medium, characterized in that: The storage medium stores a program or an instruction, and when the program or the instruction is executed, the steps of the display brightness control method according to any one of claims 6 to 10 are implemented.

Images