Image display method, device and electronic equipment

Abstract

The present disclosure relates to an image display method, device and electronic equipment, wherein the method comprises: in the case that the current ambient light illumination is greater than or equal to the illumination threshold value, determining the service life value of the electroluminescent device (EL) on the display screen according to the current average gray scale of the current display image and the current backlight brightness of the display screen; in the case that the service life value is less than or equal to the service life threshold value, performing low gray scale promotion processing on the current display image to obtain an adjusted display image, thereby performing gray scale adjustment processing on the current display image while ensuring the service life of the electroluminescent device (EL), avoiding the loss of dark detail information in the image, being able to clearly display the content in the image, and further improving the display efficiency of the image.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of image processing, and particularly relates to an image display method and device and electronic equipment. BACKGROUND

[0002] At present, terminal equipment provided with a display screen is difficult to clearly display the content in the image when displaying the image under strong light irradiation, which will lose the dark part detail information in the image and reduce the display efficiency of the image. SUMMARY

[0003] The present disclosure provides an image display method, device and electronic equipment.

[0004] According to a first aspect of an embodiment of the present disclosure, an image display method is provided, and the method comprises: in a case where a current ambient light illuminance is greater than or equal to an illuminance threshold value, determining an EL (Electro Luminescence) lifetime value of an EL device on a display screen according to a current average gray scale of a current display image and a current backlight brightness of the display screen; and in a case where the EL lifetime value is less than or equal to a lifetime threshold value, performing low gray scale lifting processing on the current display image to obtain an adjusted display image.

[0005] In an embodiment of the present disclosure, the determining of the EL lifetime value of the EL device on the display screen according to the current average gray scale of the current display image and the current backlight brightness of the display screen comprises: inputting the current average gray scale and the current backlight brightness into a corresponding relationship model to obtain the EL lifetime value output by the corresponding relationship model, wherein the corresponding relationship model is generated according to an actual corresponding relationship among average gray scales, backlight brightnesses and EL lifetime values.

[0006] In an embodiment of the present disclosure, the performing of the low gray scale lifting processing on the current display image to obtain the adjusted display image comprises: querying a gray scale lifting curve according to the current average gray scale and the current backlight brightness to obtain a current gray scale lifting value; wherein the gray scale lifting curve comprises a gray scale lifting value corresponding to the average gray scale and the backlight brightness in the case where the EL lifetime is not damaged; and performing the low gray scale lifting processing on the current display image according to the current gray scale lifting value to obtain the adjusted display image.

[0007] In an embodiment of the present disclosure, the low gray level lifting processing of the current display image according to the current gray level lifting value to obtain the adjusted display image comprises: adjusting an original color model of the current display image to an HSV color model to obtain the current display image in the HSV color model; obtaining a low gray level region in the current display image in the HSV color model; a gray level of a pixel point in the low gray level region is less than or equal to a gray level threshold; for each pixel point in the low gray level region, lifting processing is performed on a gray level of the pixel point according to the current gray level lifting value to obtain a processed display image in the HSV color model; and adjusting the HSV color model of the processed display image to the original color model to obtain the adjusted display image.

[0008] In an embodiment of the present disclosure, the method further comprises: in a case where the service life value is greater than the service life threshold, performing lifting processing on the current backlight brightness to obtain an adjusted display image.

[0009] In an embodiment of the present disclosure, the lifting processing on the current backlight brightness to obtain the adjusted display image comprises: obtaining a target backlight brightness corresponding to the current ambient illuminance; and lifting the current backlight brightness to the target backlight brightness to obtain the adjusted display image.

[0010] In an embodiment of the present disclosure, the display screen is a display screen with a pixel-level contrast adjustment function.

[0011] According to a second aspect of the embodiments of the present disclosure, an image display device is further provided, the device comprising: a determination module configured to determine a service life value of an electroluminescent device EL on a display screen according to a current average gray level of a current display image and a current backlight brightness of the display screen in a case where a current ambient illuminance is greater than or equal to an illuminance threshold; and a processing module configured to perform low gray level lifting processing on the current display image to obtain an adjusted display image in a case where the service life value is less than or equal to a service life threshold.

[0012] According to a third aspect of the embodiments of the present disclosure, an electronic device is further provided, comprising: a processor; a memory for storing instructions executable by the processor; and wherein the processor is configured to implement the steps of the image display method as described above.

[0013] According to a fourth aspect of the embodiments of the present disclosure, a non-transitory computer readable storage medium is further provided, when instructions in the storage medium are executed by a processor, the processor is enabled to perform the image display method as described above.

[0014] The technical solutions provided by the embodiments of the present disclosure at least bring the following beneficial effects:

[0015] By determining the service life value of the electroluminescent device EL on the display screen according to the current average gray scale of the current display image and the current backlight brightness of the display screen in the case that the current ambient light illumination is greater than or equal to the illumination threshold value, and performing low gray scale promotion processing on the current display image to obtain the adjusted display image in the case that the service life value is less than or equal to the service life threshold value, the gray scale adjustment processing is performed on the current display image to avoid the loss of dark part detail information in the image, the content in the image can be clearly displayed, and the display efficiency of the image is improved.

[0016] It should be understood that the foregoing general description and the following detailed description are only exemplary and explanatory, and are not limiting to the present disclosure. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings incorporated in and forming a part of the specification, illustrate embodiments consistent with the present disclosure and serve to explain the principles of the present disclosure, and are not intended to limit the present disclosure.

[0018] Figure 1 Flow chart of the image display method of one embodiment of the present disclosure;

[0019] Figure 2 Flow chart of the image display method of one embodiment of the present disclosure;

[0020] Figure 3 Frame schematic diagram of the image display method;

[0021] Figure 4 Structure schematic diagram of the image display device of one embodiment of the present disclosure;

[0022] Figure 5 Structure block diagram of an electronic device according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0023] In order to make the ordinary person skilled in the art better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely below with reference to the drawings.

[0024] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented in an order other than that illustrated or described herein. The implementation described in the following exemplary embodiments does not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present disclosure as detailed in the appended claims.

[0025] At present, the terminal device provided with a display screen is difficult to clearly display the content in the image when displaying the image under strong light irradiation, which will lose the dark part detail information in the image and reduce the display efficiency of the image.

[0026] Figure 1 A flowchart of an image display method according to an embodiment of the present disclosure. It should be noted that the image display method according to the present embodiment can be applied to an image display device, which can be configured in an electronic device to enable the electronic device to perform an image display function.

[0027] The electronic device can be any device with computing capability, such as a personal computer (PC), a mobile terminal, a server, etc. The mobile terminal can be, for example, a vehicle-mounted device, a mobile phone, a tablet computer, a personal digital assistant, a wearable device, etc. hardware device with various operating systems, touch screens and / or display screens.

[0028] In addition, the image display device according to the present embodiment can be provided in a display screen of an electronic device, or a component in the electronic device that communicates with the display screen and is capable of controlling the display screen, such as a controller, etc. The following embodiments are described with the electronic device as the execution subject.

[0029] As shown in FIG. 1, the method comprises the following steps: Figure 1

[0030] In step 101, in the case that the current ambient light intensity is greater than or equal to the intensity threshold value, the service life value of the electroluminescent device EL on the display screen is determined according to the current average gray scale of the current display image and the current backlight brightness of the display screen.

[0031] In the present embodiment, before step 101, the electronic device can perform the following processes: obtaining the current display image on the display screen; obtaining the current ambient light intensity and the current backlight brightness of the display screen; determining the gray scale histogram of the current display image; determining the current average gray scale of the current display image in combination with the gray scale histogram; and determining whether the current ambient light intensity is greater than or equal to the intensity threshold value.​

[0032] The electronic device can be provided with an ambient light sensor, which is configured to collect an ambient parameter, for example, a current ambient light intensity. The electronic device can interact with the ambient light sensor to obtain the current ambient light intensity collected by the ambient light sensor. The ambient light intensity refers to the intensity of ambient light. The intensity refers to the luminous flux of visible light received per unit area, which is used to indicate the strength of illumination and the degree of illumination of the object surface area. The unit of intensity is lux (Lux or lx).

[0033] The current backlight brightness can be the backlight brightness of the display screen of the electronic device at the current time point. The backlight brightness refers to the brightness of the backlight, that is, the display brightness value (dbv) of the backlight. The electronic device can be provided with a backlight source controller, which can control the display brightness value of the backlight source and obtain the display brightness value of the backlight source. The electronic device can interact with the backlight source controller to obtain the display brightness value of the backlight source as the current backlight brightness.

[0034] In the gray scale histogram, the number of pixels having each gray scale in the current display image can be included. Each gray scale is weighted and averaged according to the number of pixels having each gray scale to obtain the current average gray scale of the current display image.

[0035] Each pixel in the current display image has a gray scale. For each pixel, the gray scale of the pixel can be determined according to the gray value of the pixel. That is, each gray scale corresponds to a gray value range; the gray scale corresponding to the gray value range to which the gray value of the pixel belongs is taken as the gray scale of the pixel. The total number of gray scales, for example, 128, 256, etc., can be set according to actual needs. For example, the gray value range corresponding to the gray scale of 1 can be [0, 1).

[0036] In the embodiments of the present disclosure, the display screen can be a display screen with a pixel-level contrast adjustment function, for example, a sunlight screen, etc., which can drive each individual pixel to be dynamically adjusted in real time and can realize a low gray scale enhancement processing function.

[0037] In the embodiments of the present disclosure, the process of step 101 performed by the electronic device can be, for example, in the case that the current ambient light intensity is greater than or equal to the intensity threshold, inputting the current average gray scale and the current backlight brightness into the corresponding relationship model to obtain the service life value output by the corresponding relationship model, wherein the corresponding relationship model is generated according to the actual corresponding relationship among the average gray scale, the backlight brightness, and the EL service life value.

[0038] The corresponding relationship model can be obtained by measuring a plurality of display screens for an electronic device or other device. For example, for a display screen, the backlight brightness of the display screen is set to a value, the average gray scale of the displayed image of the display screen is set to a value, and the above state is maintained until the end of the service life of the display screen, i.e., a corresponding relationship between the average gray scale, the backlight brightness and the service life value of the electroluminescent (EL) device can be obtained. By repeating the above process, the above corresponding relationship model can be obtained.

[0039] The corresponding relationship model can be represented by, for example, the following formula (1).

[0040] f(x,y)=a*x n +b*y n +c*x n-1 +d*y n-1 ......+e+g (1)

[0041] wherein f represents the service life value; x represents the average gray scale; y represents the backlight brightness; a, b, c, d, e, g represent constants.

[0042] In step 102, in the case where the service life value is less than or equal to the service life threshold, the current display image is subjected to low gray scale lifting processing to obtain an adjusted display image.

[0043] The low gray scale can refer to a gray scale less than or equal to a gray scale threshold.

[0044] In the embodiments of the present disclosure, the electronic device can further perform the following process: in the case where the service life value is greater than the service life threshold, the current backlight brightness is subjected to lifting processing to obtain an adjusted display image.

[0045] The process of lifting the current backlight brightness performed by the electronic device can be, for example, obtaining a target backlight brightness corresponding to the current ambient illuminance; and lifting the current backlight brightness to the target backlight brightness to obtain an adjusted display image.

[0046] After the current backlight brightness is lifted to the target backlight brightness, the gray scale of each pixel in the adjusted display image is lifted. The ambient illuminance can be positively correlated with the backlight brightness; the greater the ambient illuminance, the greater the backlight brightness.

[0047] In the image display method of the embodiment of the present disclosure, in a case where the current ambient light illuminance is greater than or equal to the illuminance threshold, the service life value of the electroluminescent device EL on the display screen is determined according to the current average gray scale of the current display image and the current backlight brightness of the display screen; in a case where the service life value is less than or equal to the service life threshold, low gray scale lifting processing is performed on the current display image to obtain an adjusted display image, so that the gray scale adjustment processing is performed on the current display image while the service life of the electroluminescent device EL is ensured, dark detail information in the image is avoided from being lost, the content in the image can be clearly displayed, and the display efficiency of the image is improved.

[0048] Figure 2 A flowchart of an image display method of another embodiment of the present disclosure is shown. It should be noted that the image display method of the embodiment can be applied to an image display device, which can be configured in an electronic device to enable the electronic device to perform an image display function.

[0049] The electronic device can be any device with computing capability, such as a personal computer (PC), a mobile terminal, a server, and the like. The mobile terminal can be, for example, a vehicle-mounted device, a mobile phone, a tablet computer, a personal digital assistant, a wearable device, and the like, which have various operating systems, touch screens, and / or display screens.

[0050] In addition, the image display device of the embodiment can be disposed in a display screen of an electronic device, or a component in the electronic device that communicates with the display screen and can control the display screen, such as a controller, and the like. In the following embodiments, the electronic device is taken as an example for illustration.

[0051] As shown in Figure 2 The method includes the following steps:

[0052] In step 201, in a case where the current ambient light illuminance is greater than or equal to the illuminance threshold, the service life value of the electroluminescent device EL on the display screen is determined according to the current average gray scale of the current display image and the current backlight brightness of the display screen.

[0053] In step 202, in a case where the service life value is less than or equal to the service life threshold, the current gray scale lifting value is obtained by querying the gray scale lifting curve according to the current average gray scale and the current backlight brightness; the gray scale lifting curve includes the gray scale lifting value corresponding to the average gray scale and the backlight brightness in a case where the service life of the EL is not damaged.

[0054] In the embodiment of the present disclosure, before step 202, the electronic device can obtain a gray scale lifting curve. The process in which the electronic device obtains the gray scale lifting curve may, for example, be as follows: obtaining a corresponding relationship model among average gray scales, backlight brightnesses, and EL life values; obtaining an average gray scale corresponding to a first EL life value in the corresponding relationship model, wherein the first EL life value is greater than or equal to a life threshold; obtaining, for each first EL life value, a display image having the average gray scale corresponding to the first EL life value; performing low gray scale lifting processing on the display image until the EL life value is less than the life threshold; obtaining a gray scale lifting value of the display image; establishing a corresponding relationship among the gray scale lifting value, the average gray scale corresponding to the first EL life value, and the backlight brightness corresponding to the first EL life value; and determining the gray scale lifting curve according to a plurality of the above corresponding relationships.

[0055] In the embodiment of the present disclosure, the process in which the electronic device performs step 202 may, for example, be as follows: querying the gray scale lifting curve according to the current average gray scale and the current backlight brightness to obtain a target point in the gray scale lifting curve; the gray scale difference between the average gray scale on the target point and the current average gray scale is less than or equal to a gray scale difference threshold, and the brightness difference between the backlight brightness on the target point and the current backlight brightness is less than or equal to a brightness difference threshold; and determining the gray scale lifting value on the target point as the current gray scale lifting value.

[0056] In the embodiment of the present disclosure, the process in which the electronic device performs step 202 may, for example, be as follows: querying the gray scale lifting curve according to the current average gray scale and the current backlight brightness to obtain a target point in the gray scale lifting curve; the gray scale difference between the average gray scale on the target point and the current average gray scale is less than or equal to a gray scale difference threshold, and the brightness difference between the backlight brightness on the target point and the current backlight brightness is less than or equal to a brightness difference threshold; and determining the gray scale lifting value on the target point as the current gray scale lifting value.

[0057] Step 203: performing low gray scale lifting processing on the current display image according to the current gray scale lifting value to obtain an adjusted display image.

[0058] In the embodiment of the present disclosure, the process in which the electronic device performs step 203 may, for example, be as follows: adjusting the original color model of the current display image to an HSV color model to obtain the current display image in the HSV color model; obtaining a low gray scale region in the current display image in the HSV color model; the gray scale of a pixel point in the low gray scale region is less than or equal to a gray scale threshold; performing lifting processing on the gray scale of each pixel point in the low gray scale region according to the current gray scale lifting value to obtain a processed display image in the HSV color model; and adjusting the HSV color model of the processed display image to the original color model to obtain the adjusted display image.

[0059] The original color model and the HSV color model can be the same or different. The original color model, for example, the HSV color model, the RGB color model, the CMYK color model, the Lab color model, the index color model, the bitmap color model, etc., can be set according to actual needs. In the case where the original color model and the HSV color model are different, the electronic device can perform the above steps to obtain the adjusted display image.

[0060] In the case where the original color model and the HSV color model are the same, the process of step 203 performed by the electronic device can be, for example, obtaining a low gray scale region in the current display image under the HSV color model; the gray scale of a pixel point in the low gray scale region is less than or equal to a gray scale threshold; for each pixel point in the low gray scale region, the gray scale of the pixel point is raised by a current gray scale raising value to obtain a processed display image under the HSV color model; and the processed display image under the HSV color model is taken as the adjusted display image.

[0061] In the HSV color model, the parameters of the color of each pixel can include hue (H), saturation (S), and value (V).

[0062] It should be noted that the details of step 201 can refer to step 101 in the embodiment shown in Figure 1 and will not be described in detail here.

[0063] In the image display method of the embodiments of the present disclosure, in the case where the current ambient illuminance is greater than or equal to the illuminance threshold, the service life value of the electroluminescent device EL on the display screen is determined according to the current average gray scale of the current display image and the current backlight brightness of the display screen; in the case where the service life value is less than or equal to the service life threshold, the current gray scale raising value is obtained by querying the gray scale raising curve according to the current average gray scale and the current backlight brightness; the gray scale raising curve includes the gray scale raising value corresponding to the average gray scale and the backlight brightness in the case where the service life of the EL is not damaged; and the current display image is subjected to low gray scale raising processing according to the current gray scale raising value to obtain an adjusted display image. Thus, the current display image is subjected to gray scale adjustment processing while ensuring the service life of the electroluminescent device EL, avoiding loss of dark detail information in the image, enabling clear display of the content in the image, and further improving the display efficiency of the image.

[0064] The following examples are provided for illustration. As Figure 3 shown, it is a schematic diagram of the framework of the image display method. In Figure 3The process includes the following steps: (1) Determine whether the ambient light LUX (ambient light illuminance) is greater than the set threshold (illuminance threshold); if yes, execute steps (2) and (3); if no, stop executing subsequent steps. (2) Test the correspondence between the lifespan of the screen EL device (EL lifespan value) and the average gray level of the screen (average gray level) and the backlight DBV (backlight brightness) (binary N-order relationship); then execute step (6). (3) Obtain the image data stream (containing the video of the currently displayed image). (4) Read the histogram of the current frame image (the gray level histogram of the currently displayed image) and obtain the average gray level. (5) Substitute the correspondence to determine the influence of the current screen (currently displayed image) and backlight on the EL device. (6) Determine whether it affects the lifespan of the EL device (combined with the correspondence to determine whether the obtained lifespan value is less than or equal to the lifespan threshold); if yes, execute step (7); if no, execute step (8). (7) Increase the backlight DBV according to the ambient light. (8) Fix the DBV and increase the gray level of the low gray level part of the screen to enhance readability.

[0065] Specifically, step (8) may include the following steps: (8.1) Converting the RSB color model to the HSV color model. (8.2) Mapping the V value while keeping H unchanged, and raising the low grayscale values. (8.3) Converting the HSV color model to the RGB color model.

[0066] Figure 4 This is a schematic diagram of the structure of an image display device according to an embodiment of the present disclosure.

[0067] like Figure 4 As shown, the image display device may include a determining module 401 and a processing module 402.

[0068] The determining module 401 is used to determine the lifetime value of the electroluminescent device EL on the display screen based on the current average gray level of the current displayed image and the current backlight brightness of the display screen when the current ambient light illuminance is greater than or equal to the illuminance threshold. The processing module 402 is used to perform low gray level enhancement processing on the current displayed image to obtain an adjusted display image when the lifetime value is less than or equal to the lifetime threshold.

[0069] In one embodiment of this disclosure, the determining module 401 is specifically used to input the current average gray level and the current backlight brightness into a correspondence model, and obtain the lifetime value output by the correspondence model, wherein the correspondence model is generated based on the actual correspondence between the average gray level, the backlight brightness and the EL lifetime value.

[0070] In an embodiment of the present disclosure, the processing module 402 is specifically configured to: query a gray scale lifting curve according to the current average gray scale and the current backlight brightness, to obtain a current gray scale lifting value; wherein the gray scale lifting curve comprises a gray scale lifting value corresponding to an average gray scale and a backlight brightness in an EL life lossless case; and perform low gray scale lifting processing on the current display image according to the current gray scale lifting value, to obtain an adjusted display image.

[0071] In an embodiment of the present disclosure, the processing module 402 is specifically further configured to: adjust an original color model of the current display image to an HSV color model, to obtain a current display image in the HSV color model; obtain a low gray scale region in the current display image in the HSV color model; a pixel point in the low gray scale region has a gray scale less than or equal to a gray scale threshold; perform gray scale lifting processing on the pixel point in the low gray scale region according to the current gray scale lifting value, to obtain a processed display image in the HSV color model; and adjust the HSV color model of the processed display image to the original color model, to obtain the adjusted display image.

[0072] In an embodiment of the present disclosure, the processing module 402 is further configured to: perform lifting processing on the current backlight brightness, to obtain an adjusted display image, in a case where the life value is greater than the life threshold.

[0073] In an embodiment of the present disclosure, the processing module 402 is specifically configured to: obtain a target backlight brightness corresponding to the current ambient illuminance; and lift the current backlight brightness to the target backlight brightness, to obtain an adjusted display image.

[0074] In an embodiment of the present disclosure, the display screen is a display screen with a pixel-level contrast adjustment function.

[0075] In the image display device of the embodiment of the present disclosure, in a case where the current ambient illuminance is greater than or equal to an illuminance threshold, a life value of an electroluminescent device EL on a display screen is determined according to a current average gray scale of a current display image and a current backlight brightness of the display screen; in a case where the life value is less than or equal to a life threshold, low gray scale lifting processing is performed on the current display image, to obtain an adjusted display image, so that the gray scale of the current display image is adjusted while the life of the electroluminescent device EL is ensured, dark detail information in the image is avoided from being lost, the content in the image can be clearly displayed, and the display efficiency of the image is improved.

[0076] According to a third aspect of the present disclosure, an electronic device is also provided, comprising: a processor; and a memory for storing processor-executable instructions, wherein the processor is configured to: implement the image display method as described above.

[0077] To implement the above embodiments, this disclosure also proposes a storage medium.

[0078] When the instructions in the storage medium are executed by the processor, the processor is able to perform the image display method as described above.

[0079] To implement the above embodiments, this disclosure also provides a computer program product.

[0080] When the computer program product is executed by the processor of the electronic device, it enables the electronic device to perform the above-described method.

[0081] Figure 5 This is a structural block diagram of an electronic device according to an exemplary embodiment. Figure 5 The electronic device shown is merely an example and should not be construed as limiting the functionality and scope of the embodiments disclosed herein.

[0082] like Figure 5 As shown, the electronic device 1000 includes a processor 111, which can perform various appropriate actions and processes according to a program stored in a read-only memory (ROM) 112 or a program loaded from memory 116 into a random access memory (RAM) 113. The RAM 113 also stores various programs and data required for the operation of the electronic device 1000. The processor 111, ROM 112, and RAM 113 are interconnected via a bus 114. An input / output (I / O) interface 115 is also connected to the bus 114.

[0083] The following components are connected to I / O interface 115: memory 116 including hard disks, etc.; and communication section 117 including network interface cards such as local area network (LAN) cards, modems, etc., communication section 117 performs communication processing via a network such as the Internet; and driver 118 is also connected to I / O interface 115 as needed.

[0084] In particular, according to embodiments of the present disclosure, the processes described above with reference to the flowcharts can be implemented as a computer software program. For example, embodiments of the present disclosure include a computer program carried on a computer-readable medium, the computer program containing program code for executing the methods shown in the flowcharts. In such embodiments, the computer program can be downloaded and installed from a network by the communication section 117. When the computer program is executed by the processor 111, the above-described functions defined in the methods of the present disclosure are executed.

[0085] In an exemplary embodiment, a storage medium including instructions, such as a memory including instructions, is also provided, which can be executed by the processor 111 of the electronic device 1000 to complete the above-described methods. Optionally, the storage medium can be a non-transitory computer-readable storage medium, for example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, and an optical data storage device, etc.

[0086] In the present disclosure, the computer readable storage medium can be any tangible medium that contains or stores a program used by or in connection with an instruction execution system, apparatus, or device. In the present disclosure, the computer readable signal medium can include a data signal propagated in baseband or propagated as a carrier wave in a propagated data signal, in which the computer readable program code is embodied. Such a propagated data signal can take a variety of forms, including but not limited to electro-magnetic, optical, or any suitable combination thereof. The computer readable signal medium can also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate or transport program for use by or in connection with an instruction execution system, apparatus, or device. Program code embodied on a computer readable medium can be transmitted using any appropriate medium, including but not limited to wireless, wire line, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0087] Furthermore, the word "exemplary" is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other aspects or designs. Rather, use of the word exemplary is intended to present concepts in a concrete manner. As used in this application, the term "or" is intended to mean an inclusive "or" rather than an exclusive "or". That is, unless specified otherwise, or clear from context, "X employs A or B" is intended to mean any of the natural inclusive permutations. That is, if X employs A; X employs B; or X employs both A and B, then "X employs A or B" is satisfied under any of the foregoing instances. In addition, the articles "a" and "an" as used in this application and the appended claims should generally be construed to mean "one or more" unless specified otherwise or clear from context to be directed to a singular form. Thus, use of the articles in this application and the following claims is not limiting.

[0088] Also, although the disclosure has been described with respect to only one or more implementations thereof, those skilled in the art will readily appreciate that other alternatives can be used. It is contemplated that the disclosure can be carried out in other specific ways than those expressly disclosed herein. Any and all such changes, modifications, variations, and improvements that have been or can be made to the disclosure are intended to be included within the scope of the disclosure. Accordingly, the disclosure is not to be construed as limited to the particular examples disclosed but is intended to cover all structures and methods that are within the scope of the disclosure as set forth in the claims.

[0089] Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the features of the disclosure as set forth in the claims. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the disclosure being indicated by the following claims.

[0090] It is understood that the present disclosure is not limited to the precise structures herein described and illustrated in the drawings, and that various modifications and changes can be made therein without departing from the scope thereof. The scope of the present disclosure is limited only by the claims that follow.

Claims

1. An image display method characterized by, The method comprises: In a case where the current ambient light illumination is greater than or equal to an illumination threshold, determining a service life value of an electroluminescent device EL on the display screen according to a current average gray scale of a current display image and a current backlight brightness of the display screen; In a case where the service life value is less than or equal to a service life threshold, performing low-gray-scale promotion processing on the current display image to obtain an adjusted display image.

2. The method of claim 1, wherein, The service life value of the electroluminescent device EL on the display screen is determined according to the current average gray scale of the current display image and the current backlight brightness of the display screen, comprising: inputting the current average gray scale and the current backlight brightness into a corresponding relationship model to obtain the service life value output by the corresponding relationship model, wherein the corresponding relationship model is generated according to an actual corresponding relationship among average gray scales, backlight brightnesses and EL service life values.

3. The method of claim 1, wherein, The low-gray-scale promotion processing is performed on the current display image according to the current gray scale promotion value to obtain the adjusted display image. The low-gray-scale promotion processing is performed on the current display image according to the current gray scale promotion value to obtain the adjusted display image, comprising: adjusting an original color model of the current display image to an HSV color model to obtain the current display image in the HSV color model; 4. The method of claim 3, wherein, obtaining a low-gray-scale region in the current display image in the HSV color model, wherein a gray scale of a pixel point in the low-gray-scale region is less than or equal to a gray scale threshold; for each pixel point in the low-gray-scale region, performing promotion processing on the gray scale of the pixel point according to the current gray scale promotion value to obtain a processed display image in the HSV color model; adjusting the HSV color model of the processed display image to the original color model to obtain the adjusted display image. The method further comprises: In a case where the service life value is greater than the service life threshold, performing promotion processing on the current backlight brightness to obtain an adjusted display image.

5. The method of claim 1, wherein, The promotion processing is performed on the current backlight brightness to obtain the adjusted display image, comprising: obtaining a target backlight brightness corresponding to the current ambient light illumination; 6. The method of claim 5, wherein, promoting the current backlight brightness to the target backlight brightness to obtain the adjusted display image. The display screen is a display screen with a pixel-level contrast adjustment function. The apparatus comprises:

7. The method according to any one of claims 1 to 6, characterized in that, a determination module configured to, in a case where the current ambient light illumination is greater than or equal to an illumination threshold, determine a service life value of an electroluminescent device EL on the display screen according to a current average gray scale of a current display image and a current backlight brightness of the display screen; 8. An image display device, characterized by comprising: a processing module configured to, in a case where the service life value is less than or equal to a service life threshold, perform low-gray-scale promotion processing on the current display image to obtain an adjusted display image. comprising: ​ 9. An electronic device, comprising: ​ a processor; a memory for storing instructions executable by the processor; wherein the processor is configured to: implement the steps of the image display method of any one of claims 1 to 7.

10. A non-transitory computer-readable storage medium that, when instructions in the storage medium are executed by a processor, enables the processor to implement the image display method of any one of claims 1 to 7.

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