Screen resolution adjusting method and device, electronic equipment and storage medium

Abstract

The invention discloses a screen resolution adjusting method and device, electronic equipment and a storage medium, and belongs to the technical field of computers. The method comprises the steps that under the condition that it is detected that the eyes of a user watch a screen of the electronic equipment, first information is obtained, and the first information comprises eyesight information of the eyes of the user and the distance between the eyes of the user and the screen; determining a first pixel density based on the first information and a pixel density corresponding to the highest resolution of the screen; and adjusting the resolution of the screen based on the first pixel density.

Description

Technical Field

[0001] The present application belongs to the field of computer technology, and specifically relates to a method, device, electronic device and storage medium for adjusting screen resolution. Background Art

[0002] With the continuous development of electronic devices, the types of screen resolutions of electronic devices are increasing. For example: standard resolution, full HD resolution, 4K resolution, 8K resolution, etc. The resolution of the screen determines the clarity of the screen display. The higher the resolution, the clearer the display, and the better the viewing effect presented to the user.

[0003] In order to make the user watch the screen with the best effect, in the related art, electronic devices usually display images at a fixed high resolution (for example: 1920×1080) for a long time. However, since electronic devices display images at a high resolution for a long time, the power consumption of the electronic devices will increase. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a screen resolution adjustment method, device, electronic device and storage medium, which can reduce the power consumption of the electronic device without affecting the user's viewing experience.

[0005] In a first aspect, an embodiment of the present application provides a method for adjusting screen resolution, the method comprising: when detecting that a user's eyes are looking at a screen of an electronic device, obtaining first information, the first information comprising: vision information of the user's eyes and the distance between the user's eyes and the screen; determining a first pixel density based on the first information and the pixel density corresponding to the highest resolution of the screen; and adjusting the resolution of the screen based on the first pixel density.

[0006] In a second aspect, an embodiment of the present application provides a device for adjusting screen resolution, the device comprising: an acquisition module, a determination module and an adjustment module. The acquisition module is used to acquire first information when it is detected that the user's eyes are looking at the screen of the electronic device, the first information comprising: the visual acuity information of the user's eyes and the distance between the user's eyes and the screen. The determination module is used to determine a first pixel density based on the first information acquired by the acquisition module and the pixel density corresponding to the highest resolution of the screen. The adjustment module is used to adjust the resolution of the screen based on the first pixel density determined by the determination module.

[0007] In a third aspect, an embodiment of the present application provides an electronic device, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0008] In a fourth aspect, an embodiment of the present application provides a readable storage medium, on which a program or instruction is stored, and when the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented.

[0009] In a fifth aspect, an embodiment of the present application provides a chip, comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run a program or instruction to implement the method described in the first aspect.

[0010] In a sixth aspect, an embodiment of the present application provides a computer program / program product, wherein the computer program / program product is stored in a storage medium, and the program / program product is executed by at least one processor to implement the method described in the first aspect.

[0011] In an embodiment of the present application, when it is detected that the user's eyes are looking at the screen of the electronic device, first information is obtained, and the first information includes: the visual acuity information of the user's eyes and the distance between the user's eyes and the screen; based on the first information and the pixel density corresponding to the highest resolution of the screen, the first pixel density is determined; based on the first pixel density, the resolution of the screen is adjusted. In this solution, since the electronic device can determine the first pixel density that the user can recognize based on the visual acuity information of the user's eyes and the distance between the user's eyes and the screen, and the pixel density corresponding to the highest resolution of the screen, and then further dynamically adjust the resolution of the screen based on the first pixel density, the adjustment of the screen resolution does not affect the user's viewing effect, that is, the clarity of the screen display content seen by the user does not change, so it is achieved that while meeting the human eye's demand for screen clarity, it can also avoid the electronic device from displaying images at the highest resolution for a long time, thereby reducing the power consumption of the electronic device without affecting the user's viewing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of an example of a user's field of view provided in an embodiment of the present application;

[0013] Figure 2 This is one of the flowcharts of a method for adjusting screen resolution provided in an embodiment of the present application;

[0014] Figure 3 This is a second flow chart of a method for adjusting screen resolution provided in an embodiment of the present application;

[0015] Figure 4 This is a third flow chart of a method for adjusting screen resolution provided in an embodiment of the present application;

[0016] Figure 5 This is a fourth flow chart of a method for adjusting screen resolution provided in an embodiment of the present application;

[0017] Figure 6 is a structural schematic diagram of a screen resolution adjustment device provided in an embodiment of the present application;

[0018] Figure 7 This is one of the hardware structure diagrams of an electronic device provided in an embodiment of the present application;

[0019] Figure 8 This is the second schematic diagram of the hardware structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0021] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0022] The terms "at least one (item)", "at least one of" and the like in the specification and claims of the present application refer to any one, any two or a combination of more than two of the objects included therein. For example, at least one (item) of a, b, and c can be represented by: "a", "b", "c", "a and b", "a and c", "b and c" and "a, b and c", where a, b, and c can be single or multiple. Similarly, "at least two (items)" refers to two or more, and its meaning is similar to that of "at least one (item)".

[0023] In order to facilitate understanding of the solution of the present application, the relevant technologies involved in the present application are explained below.

[0024] 1. Screen resolution refers to the number of pixels on the screen, usually described by horizontal pixels × vertical pixels. Generally, the higher the resolution of an image, the more pixels it contains, and the clearer the image.

[0025] 2. Pixel density (PPI) is used to indicate the number of pixels per inch on the screen. The higher the pixel density, the richer the image details and the more delicate the display effect. The lower the pixel density, the blurrier the image display. Therefore, pixel density is a key factor in determining clarity.

[0026] Exemplarily, the electronic device may calculate the pixel density by the following formula 1:

[0027]

[0028] Among them, X represents the horizontal resolution of the screen, Y represents the vertical resolution of the screen, and Z represents the diagonal length of the screen, usually in inches.

[0029] 3. The field of view angle of the screen. When the screen size of the electronic device is fixed, due to the principle that objects appear larger when near and smaller when far, the closer the human eye is to the screen, the larger the field of view angle of the screen; the farther the human eye is from the screen, the smaller the field of view angle of the screen.

[0030] For example, when the screen size is fixed, the relationship between the distance between the human eye and the screen and the field of view angle is as shown in the following formula 2:

[0031]

[0032] Where X is the diagonal size of the screen, d is the distance between the human eye and the screen, and θ is the field of view of the screen.

[0033] For example, Figure 1 As shown, the distance between the human eye and the screen of the electronic device is d, the diagonal size of the screen is X, and the field of view angle of the user viewing the screen is θ; when the distance d between the human eye and the screen of the electronic device becomes farther, the field of view angle θ of the user viewing the screen will become larger; similarly, when the distance d between the human eye and the screen of the electronic device becomes closer, the field of view angle θ of the user viewing the screen will become smaller.

[0034] 4. Angular resolution (Pixels Per Degree, PPD) refers to the number of pixels filled in every 1° angle in the field of view. It can also be understood as how many pixels the human eye can distinguish within each degree. For people with 1.0 vision, PPD = 60, that is, the minimum object that can be distinguished is 1 / 60 degree. Since the smaller the viewing distance d, the larger the field of view θ of the screen; at the same time, the user's vision is unchanged within a specific time and the number of physical pixels on the screen remains unchanged, as the field of view θ increases, according to the following formula 3, the PPD provided to the user by the screen will decrease, and the lattice feeling will be stronger.

[0035] Therefore, the closer the viewing distance d is, the higher the pixel density requirement for the screen is. Therefore, in order to ensure the user's viewing effect, in this application, the pixel density of the screen can be increased when the viewing distance d is short; similarly, when the viewing distance d is far, since the pixel density requirement for the screen is lower, the PPD provided to the user can be reduced, that is, the pixel density of the screen can be reduced.

[0036] PPD = pixels / degree Formula 3

[0037] 5. Vision level is used to characterize the vision obtained by using the "International Standard Vision Chart". The vision level ranges from 0.1 to 1.5, and a vision level of 1.0 is considered normal vision. When the distance between the human eye and the screen remains unchanged, the lower the vision level, the lower the pixel density that the user can recognize. Similarly, the higher the vision level, the higher the pixel density that the user can recognize.

[0038] The screen resolution adjustment method provided by the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0039] The screen resolution adjustment method in the embodiment of the present application can be applied to the scenario of adjusting the screen resolution.

[0040] The following is an illustrative description of the screen resolution adjustment method provided in the embodiments of the present application by taking some specific scenarios as examples.

[0041] Scenario 1 (the user's vision information is fixed, and the distance between the eyes and the screen of the electronic device becomes closer): the user inputs the user's vision information (for example: "1.0") in the electronic device in advance; when the user uses the electronic device to watch a video, and the electronic device obtains the user's vision information as "1.0", and the distance between the user's eyes and the screen of the electronic device is 0.5m (that is, the second information mentioned above), the electronic device can determine the pixel density A that the user can recognize based on the pixel density corresponding to the highest resolution of the screen and the obtained second information, and then adjust the resolution of the screen to resolution A corresponding to pixel density A based on the pixel density A. Then, when the user approaches the electronic device and the electronic device detects that the distance between the user's eyes and the screen of the electronic device changes to 0.4m, the electronic device can determine the pixel density B (i.e., the first pixel density mentioned above) that the user can recognize based on the user's eye vision information "1.0", the distance between the user's eyes and the screen of the electronic device of 0.4m (i.e., the first information mentioned above), and the pixel density corresponding to the highest resolution of the screen, and then adjust the resolution of the screen to resolution B based on the pixel density B; wherein, pixel density B is greater than pixel density A, and resolution A is lower than resolution B; it can be understood that because the user's eye vision information is fixed, the distance between the user's eyes and the screen of the electronic device becomes closer, and the pixel density that the user can recognize will increase. Therefore, in order to ensure the clarity of the display effect, a pixel density B that is higher than pixel density A can be determined to improve the resolution of the screen.

[0042] Scenario 2 (the user's eye vision information becomes lower, and the distance between the user's eyes and the screen of the electronic device is fixed): the user inputs the user's eye vision level (for example, "1.0") in the electronic device in advance; when the user uses the electronic device to watch a video, and the electronic device obtains the user's eye vision information as 1.0", and the distance between the user's eyes and the screen of the electronic device is 0.5m (that is, the second information mentioned above), the electronic device can determine the pixel density A that the user can recognize based on the pixel density corresponding to the highest resolution of the screen and the obtained second information, and then adjust the screen resolution to the resolution A corresponding to the pixel density A based on the pixel density A; when the user finds that his eyesight has deteriorated, the user can update the user's eye vision information in the electronic device (for example, " 0.8”); then when the user uses the electronic device to watch the video again, the electronic device obtains the user's eye vision information of 0.8”, and the distance between the user's eyes and the electronic device screen is 0.5m (that is, the first information mentioned above), the electronic device can determine the pixel density C (that is, the first pixel density mentioned above) that the user can recognize based on the pixel density corresponding to the highest resolution of the screen and the first information obtained, and then adjust the resolution of the screen to resolution C based on the pixel density C; wherein, pixel density C is less than pixel density A, and resolution A is higher than resolution C; it can be understood that as the user's eyesight deteriorates, the pixel density that the user can recognize will decrease, and therefore a pixel density C that is lower than pixel density A can be determined to reduce the resolution of the screen.

[0043] Combined with scenario 2, scenario 3 is as follows (the user's eyesight deteriorates, and the distance between the user's eyes and the screen of the electronic device becomes farther). After the screen resolution is adjusted to resolution A corresponding to pixel density A, when the user uses the electronic device to watch a video, the electronic device obtains the user's eyesight information adjusted from "1.0" to 0.8", and the distance between the user's eyes and the screen of the electronic device changes from 0.5m to 0.6m (that is, the first information mentioned above), the electronic device can determine the pixel density D (that is, the first pixel density mentioned above) that the user can recognize based on the pixel density corresponding to the highest resolution of the screen and the first information obtained, and then adjust the screen resolution to resolution D based on the pixel density D; wherein the pixel density D is less than the pixel density A and less than the pixel density C in scenario 2, and the resolution C is lower than the resolution A and lower than the resolution C in scenario 2; it can be understood that because the user's eyesight has not only deteriorated, but the distance between the user's eyes and the screen of the electronic device has also become farther, the pixel density that the user can recognize is lower, so a pixel density D that is lower than both the pixel density A and the pixel density C can be determined to reduce the resolution of the screen.

[0044] In the screen resolution adjustment method, device, electronic device and storage medium provided in the embodiments of the present application, since the electronic device can determine the first pixel density that can be recognized by the user based on the visual acuity information of the user's eyes and the distance between the user's eyes and the screen, and the pixel density corresponding to the highest resolution of the screen, and then further dynamically adjust the resolution of the screen based on the first pixel density, the adjustment of the screen resolution does not affect the user's viewing effect, that is, the clarity of the screen display content seen by the user does not change. Therefore, while meeting the human eye's demand for screen clarity, it can also avoid the electronic device from displaying images at the highest resolution for a long time, thereby reducing the power consumption of the electronic device without affecting the user's viewing effect.

[0045] The screen resolution adjustment method provided in the embodiment of the present application may be executed by a screen resolution adjustment device, which may be an electronic device, or a functional module or entity in the electronic device. The technical solution provided in the embodiment of the present application is described below using an electronic device as an example.

[0046] The present application provides a method for adjusting screen resolution. Figure 2 A flowchart of a method for adjusting screen resolution provided by an embodiment of the present application is shown, and the method can be applied to electronic devices. Figure 2 As shown, the screen resolution adjustment method provided in the embodiment of the present application may include the following steps 201 to 203.

[0047] Step 201: When it is detected that the user is looking at the screen of the electronic device, the electronic device obtains first information.

[0048] In an embodiment of the present application, the first information includes: vision information of the user's eyes and the distance between the user's eyes and the screen.

[0049] In some embodiments of the present application, the user's eyesight information can be stored in the electronic device. It is understood that when the user's eyes are detected to be looking at the electronic device screen, the electronic device can obtain the stored user's eyesight information to facilitate the rapid adjustment of the screen resolution in combination with the distance between the user's eyes and the screen.

[0050] In some embodiments of the present application, before step 201, when the electronic device displays a vision information entry interface, the electronic device can receive a first input from the user on the vision information entry interface, and obtain and store the vision information of the user's eyes based on the input information of the first input.

[0051] In some embodiments of the present application, the above input information is used to indicate the vision information of the user's eyes.

[0052] In some embodiments of the present application, when receiving a second input from the user on the vision level entry interface, and the vision information indicated by the input information of the second input is different from the stored vision information of the user's eyes, the electronic device can update the vision information of the user's eyes.

[0053] In some embodiments of the present application, the distance between the user's eyes and the screen may also be understood as the distance between the user and the screen of the electronic device.

[0054] In some embodiments of the present application, the electronic device can determine the distance between the user's eyes and the screen through a distance sensor of the electronic device.

[0055] In some examples, the distance sensor may be a LiDAR sensor, or any sensor capable of measuring the distance between the user's eyes and the screen. The specific distance sensor may be determined according to actual usage requirements, and the present application embodiment does not limit this.

[0056] For example, the electronic device may emit a first laser beam through a LiDAR sensor of the electronic device, and receive a reflected beam of the first laser beam; and then determine the distance between the user's eyes and the screen based on the difference between the first moment and the second moment, wherein the first moment is the moment when the first laser beam is emitted, and the second moment is the moment when the electronic device receives the reflected beam.

[0057] In some embodiments of the present application, the electronic device may capture images through a camera, and then determine whether the user's eyes are fixed on the screen of the electronic device based on the captured images.

[0058] It should be noted that the detailed steps for the electronic device to determine whether the user's eyes are looking at the screen of the electronic device can be found in the description of the relevant technology and will not be repeated here.

[0059] In some embodiments of the present application, the electronic device can obtain the above-mentioned first information when it is detected that the user's eyes are looking at the electronic device screen and the electronic device is in use.

[0060] In some embodiments of the present application, the electronic device can determine that the electronic device is in use when it detects that the screen is in a lit state and the electronic device is running any application in the foreground.

[0061] Step 202: The electronic device determines a first pixel density based on the first information and the pixel density corresponding to the highest resolution of the screen.

[0062] In some embodiments of the present application, the above-mentioned first pixel density can be understood as a pixel density that matches the first information.

[0063] In some embodiments of the present application, the first pixel density is the maximum number of pixels that can be recognized (or distinguished) by a user per inch of the screen.

[0064] It can be understood that when the pixel density of the screen is higher than the pixel density recognizable by the user, the user cannot recognize more pixels, that is, the user cannot distinguish smaller details. It can also be understood that when the pixel density of the screen is higher than the pixel density recognizable by the user, the screen effect viewed by the user is the same as the screen effect viewed by the user when the pixel density of the screen is the pixel density recognizable by the user. Therefore, when the pixel density of the screen is the pixel density recognizable by the user, it will not affect the viewing effect of the user (that is, in the eyes of the user, the clarity of the screen has not changed), and it can also save the power consumption of the electronic device.

[0065] In some embodiments of the present application, the pixel density corresponding to the highest resolution of the above-mentioned screen can be understood as: the highest pixel density of the screen, that is, the maximum number of pixels that the electronic device can display per inch of the screen.

[0066] In some embodiments of the present application, Figure 2 ,like Figure 3 As shown, the above step 202 can be specifically implemented through the following step 202a.

[0067] Step 202a: When the first information is different from the second information, the electronic device determines a first pixel density based on the first information and a pixel density corresponding to a maximum resolution of the screen.

[0068] In an embodiment of the present application, the second information is information acquired at a time before the first information is acquired.

[0069] In some embodiments of the present application, the second information includes: vision information of the user's eyes obtained at a moment before the first information is obtained and the distance between the user's eyes and the screen.

[0070] In some embodiments of the present application, the first information and the second information may be different from each other and may be any of the following:

[0071] The user's eyesight information included in the first information is different from the user's eyesight information included in the second information (it can be understood that after the electronic device acquires the second information and before acquiring the first information, the user updates the user's eyesight information stored in the electronic device);

[0072] The distance between the user's eyes and the screen included in the first information is different from the distance between the user's eyes and the screen included in the second information;

[0073] The user's eye vision information included in the first information is different from the user's eye vision information included in the second information, and the distance between the user's eye and the screen included in the first information is different from the distance between the user's eye and the screen included in the second information.

[0074] It can be understood that when the above-mentioned first information is the same as the second information, it means that the user's eye vision information and the distance between the user's eyes and the screen have not changed, so the pixel density recognizable by the user has not changed, so there is no need to repeatedly determine the pixel density recognizable by the user.

[0075] In this way, the electronic device determines the pixel density recognizable by the user only when at least one of the user's eye vision information and the distance between the user's eyes and the screen changes, and then dynamically adjusts the screen resolution, thereby saving power consumption of the electronic device.

[0076] In some embodiments of the present application, Figure 2 ,like Figure 4 As shown, the above step 202 can be specifically implemented through the following steps 202b and 202c.

[0077] Step 202b: The electronic device determines a first adjustment weight based on the first information.

[0078] In an embodiment of the present application, the value of the first adjustment weight is less than or equal to 1.

[0079] In some examples, the value range of the first adjustment weight may be [0.4, 1]. The specific value may be determined according to actual use requirements, and the embodiment of the present application does not limit this.

[0080] In some embodiments of the present application, the higher the first adjustment weight is, the greater the first pixel density is; similarly, the lower the first adjustment weight is, the smaller the first pixel density is, that is, the first adjustment weight is proportional to the first pixel density.

[0081] In some embodiments of the present application, the above step 202b can be specifically implemented through the following step 301.

[0082] Step 301: The electronic device determines, among at least two adjustment weights, an adjustment weight corresponding to a first visual range and a first distance range as a first adjustment weight.

[0083] In an embodiment of the present application, the above-mentioned vision information is within a first vision range, and the distance between the user's eyes and the screen is within a first distance range.

[0084] In some embodiments of the present application, the electronic device may determine the first adjustment weight corresponding to the first visual range and the first distance range by looking up the following Table 1.

[0085] Table 1

[0086]

[0087] In some embodiments of the present application, the correspondence between the visual range and the distance range and the adjustment weight (ie, the above-mentioned Table 1) may be obtained through human factors experiments.

[0088] In some embodiments of the present application, it can be seen from Table 1 above that when the distance between the user's eyes and the screen is fixed, the user's eye vision information is proportional to the adjustment weight; when the user's eye vision information is fixed, the distance between the user's eyes and the screen is inversely proportional to the adjustment weight. Therefore, when the distance between the user's eyes and the screen is fixed, the user's eye vision information is proportional to the pixel density; when the user's eye vision information is fixed, the distance between the user's eyes and the screen is inversely proportional to the pixel density.

[0089] It can be understood that when the user's eye vision information is high and the distance between the user's eyes and the screen is close, the higher the pixel density that the user can recognize, the higher the resolution requirement. Therefore, for the case where the user's eye vision information is high and the distance between the user's eyes and the screen is close, the first adjustment weight can be 1, that is, the resolution of the electronic device is not adjusted, and the electronic device displays the image at the highest resolution.

[0090] For example, when the first information includes the user's eye vision information of "1.2" and the distance between the user's eyes and the screen is "0.6" m, the electronic device can first determine that the vision range corresponding to the user's eye vision information "1.2" is "(1,1.5]" (that is, the first vision range mentioned above), and the distance range corresponding to the distance "0.6" m between the user's eyes and the screen is "(0.5,0.75]" (that is, the first distance range mentioned above), and then by looking up Table 1 above, the electronic device can determine that the adjustment weight corresponding to the vision range "(1,1.5]" and the distance range "(0.5,0.75]" is "0.8" (that is, the first adjustment weight mentioned above).

[0091] In some embodiments of the present application, the above step 202b can be specifically implemented through the following steps 401 and 402.

[0092] Step 401: The electronic device determines a first PPD corresponding to a second vision range from a preset correspondence between the vision range and the PPD.

[0093] In an embodiment of the present application, the above-mentioned vision information is located within the second vision range.

[0094] In some embodiments of the present application, the first PPD is the maximum number of pixels that the user can distinguish per degree when the user's vision information is within the second vision range.

[0095] In some embodiments of the present application, the electronic device may determine the first PPD corresponding to the second visual range by looking up the following Table 2.

[0096] Table 2

[0097] Visual range PPD (0,0.8] 48 (0.8,1] 60 (1,1.5] 75 (1.5,2.0] 100

[0098] In some embodiments of the present application, when the distance between the user's eyes and the screen is fixed, the user's vision information is proportional to the PPD.

[0099] It can be understood that when the distance between the user's eyes and the screen is fixed, the higher the user's vision, the more pixels the eyes can recognize, that is, the larger the PPD; similarly, when the distance between the user's eyes and the screen is fixed, the lower the user's vision, the fewer pixels the eyes can recognize, that is, the smaller the PPD.

[0100] Step 402: The electronic device determines, among at least two adjustment weights, the adjustment weight corresponding to the first PPD and the second distance range as the first adjustment weight.

[0101] In the embodiment of the present application, the distance between the user's eyes and the screen is within the second distance range.

[0102] In some embodiments of the present application, the electronic device may determine the first adjustment weight corresponding to the first PPD and the second distance range by looking up the following Table 3.

[0103] Table 3

[0104]

[0105] In some embodiments of the present application, the correspondence between PPD, distance range and adjustment weight (ie, the above-mentioned Table 3) may be obtained through human factor experiments.

[0106] In some embodiments of the present application, it can be seen from the above Table 3 that when the distance between the user's eyes and the screen is fixed, the PPD is proportional to the adjustment weight; when the PPD is fixed, the distance between the user's eyes and the screen is inversely proportional to the adjustment weight. Therefore, when the distance between the user's eyes and the screen is fixed, the visual acuity information of the user's eyes is proportional to the pixel density; when the visual acuity information of the user's eyes is fixed, the distance between the user's eyes and the screen is inversely proportional to the pixel density.

[0107] It can be understood that when the distance between the user's eyes and the screen is fixed, the higher the vision of the user's glasses, the more pixels the eyes can recognize, that is, the larger the PPD. When the PPD is larger, the higher the pixel density requirement of the screen is, so the adjustment weight is also larger, so that the pixel density is higher, so that the resolution is higher, and the display is clearer. Similarly, when the distance between the user's eyes and the screen is fixed, the lower the vision of the user's glasses, the fewer pixels the eyes can recognize, that is, the smaller the PPD. When the PPD is smaller, the pixel density requirement of the screen is lower, so the adjustment weight is also smaller, so that the pixel density is lower, so that the resolution is lower, and more power consumption of the electronic device is saved.

[0108] It can be understood that when the user's vision information is fixed, the closer the distance between the user's eyes and the screen is, the more pixels the eyes can recognize, that is, the larger the PPD is. When the PPD is larger, the higher the pixel density requirement of the screen is, so the adjustment weight is also larger, so that the pixel density is higher, so that the resolution is higher, and the display is clearer. Similarly, when the user's vision information is fixed, the farther the distance between the user's eyes and the screen is, the fewer pixels the human eye can recognize, that is, the smaller the PPD is. When the PPD is smaller, the pixel density requirement of the screen is lower, so the adjustment weight is also smaller, so that the pixel density is lower, so that the resolution is lower, and more power consumption of electronic equipment is saved.

[0109] It can be understood that the lower the user's vision is and the farther the distance between the user's eyes and the screen is, the fewer pixels the user's eyes can recognize, that is, the smaller the PPD is. When the PPD is smaller, the pixel density requirement of the screen is lower. Therefore, the adjustment weight is also smaller, resulting in lower pixel density, thereby lowering the resolution and saving more power consumption of electronic devices.

[0110] For example, when the first information includes the user's eye vision information "0.6" and the distance between the user's eyes and the screen is "0.8" m, the electronic device can first determine that the vision range corresponding to the user's eye vision information "0.6" is "(0,0.8]" (that is, the second vision range mentioned above), and the distance range corresponding to the distance "0.8" m between the user's eyes and the screen is "(0.75,1]" (that is, the second distance range mentioned above), and then by looking up the above Table 2, the electronic device can determine that the PPD corresponding to the vision range "(0,0.8]" is "48" (that is, the above-mentioned first PPD), and then the electronic device can determine that the adjustment weight corresponding to the PPD "48" and the distance range "(0.75,1]" is "0.5" (that is, the above-mentioned first adjustment weight) by looking up the above Table 3.

[0111] Step 202c: The electronic device multiplies the first adjustment weight by the pixel density corresponding to the highest resolution to obtain a first pixel density.

[0112] For example, when the first adjustment weight is 0.8 and the pixel density corresponding to the highest resolution is 300, the electronic device can obtain a first pixel density of: 0.8×300=240.

[0113] In this way, since the electronic device can determine a matching first adjustment weight based on the user's eye vision information and the distance between the user's eyes and the screen, and determine the pixel density recognizable by the user's eyes based on the adjustment weight, and then dynamically adjust the resolution of the electronic device based on the pixel density, compared to the electronic device continuously displaying images at high resolution, this solution neither affects the user's viewing effect nor saves power consumption of the electronic device.

[0114] Step 203: The electronic device adjusts the resolution of the screen based on the first pixel density.

[0115] It can be understood that the electronic device can adjust the resolution of the screen to a resolution corresponding to the first pixel density based on the first pixel density.

[0116] In some embodiments of the present application, the first pixel density is proportional to the resolution of the screen.

[0117] In some embodiments of the present application, Figure 2 ,like Figure 5 As shown, the above step 203 can be specifically implemented through the following steps 501 and 502.

[0118] Step 501: The electronic device calculates a first resolution based on a first pixel density and a screen size.

[0119] In some embodiments of the present application, the screen size of the screen of the electronic device includes screen height and screen width.

[0120] Exemplarily, the units of screen height and screen width are inches.

[0121] In some embodiments of the present application, the electronic device may read the stored hardware parameters of the electronic device to obtain the screen size of the screen.

[0122] In some embodiments of the present application, the electronic device may multiply the screen height by the first pixel density to obtain the number of pixels in the vertical direction of the screen, multiply the screen width by the first pixel density to obtain the number of pixels in the horizontal direction of the screen, and then obtain the first resolution based on the number of pixels in the vertical direction and the number of pixels in the horizontal direction.

[0123] Step 502: The electronic device adjusts the screen resolution to a first resolution.

[0124] In some embodiments of the present application, the electronic device may divide the number of pixels px corresponding to the first resolution by the density value to obtain a dp value, and then adjust the screen resolution based on the dp value.

[0125] In some embodiments of the present application, the electronic device may divide the first pixel density PPI by the first value to obtain the above density value.

[0126] Exemplarily, the first value is 160, ie, the standard Dots Per Inch (DPI) value.

[0127] It is understandable that electronic devices can achieve screen adaptation by modifying the system density. System density is a member variable in DisplayMetrics, and the DisplayMetrics instance can be obtained through Resources#getDisplayMetrics, and Resources are obtained through the Context of Activity or Application. In other words, all dp and px conversions are calculated through the relevant values ​​in DisplayMetrics, so you only need to modify the density value in DisplayMetrics to complete dp adaptation.

[0128] It should be noted that for detailed steps of adjusting the screen resolution of an electronic device, reference can be made to the description in the relevant technology and will not be repeated here.

[0129] In the screen resolution adjustment method provided in the embodiment of the present application, since the electronic device can determine the first pixel density that the user can recognize based on the user's eye vision information and the distance between the user's eyes and the screen, and the pixel density corresponding to the highest resolution of the screen, and then further dynamically adjust the screen resolution based on the first pixel density, the adjustment of the screen resolution does not affect the user's viewing effect, that is, the clarity of the screen display content seen by the user does not change, so that while meeting the human eye's demand for screen clarity, it can also avoid the electronic device from displaying images at the highest resolution for a long time, thereby reducing the power consumption of the electronic device without affecting the user's viewing effect. .

[0130] It should be noted that the above-mentioned method embodiments, or various possible implementation methods in each method embodiment, can be executed separately, or, under the premise that there is no contradiction, can also be executed in combination with each other. The specific implementation can be determined according to actual usage requirements, and the embodiments of the present application do not limit this.

[0131] It should be noted that the screen resolution adjustment method provided in the embodiment of the present application can be executed by a screen resolution adjustment device. In the embodiment of the present application, the screen resolution adjustment device executing the screen resolution adjustment method is taken as an example to illustrate the screen resolution adjustment device provided in the embodiment of the present application.

[0132] Figure 6 FIG. 2 shows a possible structural diagram of a screen resolution adjustment device involved in an embodiment of the present application. Figure 6 As shown, the screen resolution adjustment device 70 may include: an acquisition module 71 , a determination module 72 and an adjustment module 73 .

[0133] The acquisition module 71 is used to acquire first information when it is detected that the user's eyes are looking at the screen of the electronic device, and the first information includes: the visual acuity information of the user's eyes and the distance between the user's eyes and the screen;

[0134] A determination module 72, configured to determine a first pixel density based on the first information acquired by the acquisition module 71 and a pixel density corresponding to a maximum resolution of the screen;

[0135] The adjustment module 73 is used to adjust the resolution of the screen based on the first pixel density determined by the determination module 72.

[0136] An embodiment of the present application provides a screen resolution adjustment device. Since the electronic device can determine a first pixel density that can be recognized by the user based on the visual acuity information of the user's eyes, the distance between the user's eyes and the screen, and the pixel density corresponding to the highest resolution of the screen, and then further dynamically adjust the resolution of the screen based on the first pixel density, the adjustment of the screen resolution does not affect the user's viewing effect, that is, the clarity of the screen display content seen by the user does not change. Therefore, while meeting the human eye's demand for screen clarity, it can also avoid the electronic device from displaying images at the highest resolution for a long time, thereby reducing the power consumption of the electronic device without affecting the user's viewing effect.

[0137] In one possible implementation, the determination module 72 is specifically used to determine the first pixel density based on the first information and the pixel density corresponding to the highest resolution of the screen when the first information is different from the second information; wherein the second information includes: the vision information of the user's eyes obtained at a moment before obtaining the first information and the distance between the user's eyes and the screen.

[0138] In one possible implementation, the determination module 72 is specifically used to determine a first adjustment weight based on the first information; and multiply the first adjustment weight by the pixel density corresponding to the highest resolution to obtain a first pixel density; wherein the value of the above-mentioned first adjustment weight is less than or equal to 1.

[0139] In one possible implementation, the determination module 72 is specifically used to determine the adjustment weight corresponding to the first visual acuity range and the first distance range among at least two adjustment weights as the first adjustment weight; wherein the visual acuity information is within the first visual acuity range, and the distance between the user's eyes and the screen is within the first distance range.

[0140] In one possible implementation, the determination module 72 is specifically used to determine the first PPD corresponding to the second vision range from a preset correspondence between the vision range and the angular resolution PPD, and the vision information is within the second vision range; and among at least two adjustment weights, the adjustment weight corresponding to the first PPD and to the second distance range is determined as the first adjustment weight, and the distance between the user's eyes and the screen is within the second distance range.

[0141] In a possible implementation, the screen resolution adjustment device 70 provided in the embodiment of the present application further includes: a calculation module. The calculation module is used to calculate the first resolution based on the first pixel density and the screen size of the screen. The adjustment module 73 is specifically used to adjust the resolution of the screen to the first resolution calculated by the calculation module.

[0142] The screen resolution adjustment device in the embodiment of the present application can be an electronic device, or a component in the electronic device, such as an integrated circuit or a chip. The electronic device can be a terminal, or other devices other than a terminal. Exemplarily, the electronic device can be a mobile phone, a tablet computer, a laptop computer, a PDA, a vehicle-mounted electronic device, a mobile Internet device (Mobile Internet Device, MID), an augmented reality (Augmented Reality, AR) / virtual reality (Virtual Reality, VR) device, a robot, a wearable device, a super mobile personal computer (Ultra-Mobile Personal Computer, UMPC), a netbook or a personal digital assistant (Personal Digital Assistant, PDA), etc., and can also be a server, a network attached storage (Network Attached Storage, NAS), a personal computer (Personal Computer, PC), a television (television, TV), a teller machine or a self-service machine, etc., which is not specifically limited in the embodiment of the present application.

[0143] The screen resolution adjustment device in the embodiment of the present application may be a device having an operating system. The operating system may be an Android operating system, an iOS operating system, or other possible operating systems, which are not specifically limited in the embodiment of the present application.

[0144] The screen resolution adjustment device provided in the embodiment of the present application can implement each process implemented in the above method embodiment, and will not be described again here to avoid repetition.

[0145] Alternatively, if Figure 7 As shown, an embodiment of the present application also provides an electronic device 900, including a processor 901 and a memory 902, wherein the memory 902 stores programs or instructions that can be executed on the processor 901, and when the program or instructions are executed by the processor 901, the various steps of the above-mentioned method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, they are not described here.

[0146] It should be noted that the electronic devices in the embodiments of the present application include the mobile electronic devices and non-mobile electronic devices mentioned above.

[0147] Figure 8 A schematic diagram of the hardware structure of an electronic device to implement an embodiment of the present application.

[0148] The electronic device 100 includes but is not limited to components such as a radio frequency unit 101, a network module 102, an audio output unit 103, an input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, and a processor 110.

[0149] Those skilled in the art will appreciate that the electronic device 100 may also include a power source (such as a battery) for supplying power to various components, and the power source may be logically connected to the processor 110 through a power management system, thereby implementing functions such as managing charging, discharging, and power consumption management through the power management system. Figure 8 The electronic device structure shown in the figure does not constitute a limitation on the electronic device. The electronic device may include more or fewer components than shown in the figure, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0150] Among them, the processor 110 is used to obtain first information when it is detected that the user's eyes are looking at the screen of the electronic device. The first information includes: the vision information of the user's eyes and the distance between the user's eyes and the screen; and determine the first pixel density based on the first information and the pixel density corresponding to the highest resolution of the screen; and adjust the resolution of the screen based on the first pixel density.

[0151] An embodiment of the present application provides an electronic device. Since the electronic device can determine a first pixel density that can be recognized by the user based on the visual acuity information of the user's eyes, the distance between the user's eyes and the screen, and the pixel density corresponding to the highest resolution of the screen, and then further dynamically adjust the resolution of the screen based on the first pixel density, the adjustment of the screen resolution does not affect the user's viewing effect, that is, the clarity of the screen display content seen by the user does not change. Therefore, while meeting the human eye's demand for screen clarity, it can also avoid the electronic device from displaying images at the highest resolution for a long time, thereby reducing the power consumption of the electronic device without affecting the user's viewing effect.

[0152] In some embodiments of the present application, the processor 110 is specifically used to determine the first pixel density based on the first information and the pixel density corresponding to the highest resolution of the screen when the first information is different from the second information; wherein the second information includes: the vision information of the user's eyes obtained at a moment before obtaining the first information and the distance between the user's eyes and the screen.

[0153] In some embodiments of the present application, the processor 110 is specifically used to determine a first adjustment weight based on the first information; and multiply the first adjustment weight by the pixel density corresponding to the highest resolution to obtain a first pixel density; wherein the value of the above-mentioned first adjustment weight is less than or equal to 1.

[0154] In some embodiments of the present application, the processor 110 is specifically used to determine the adjustment weight corresponding to the first visual range and the first distance range among at least two adjustment weights as the first adjustment weight; wherein the visual information is within the first visual range, and the distance between the user's eyes and the screen is within the first distance range.

[0155] In some embodiments of the present application, the processor 110 is specifically used to determine a first PPD corresponding to a second visual range from a preset correspondence between the visual range and the angular resolution PPD, and the visual information is within the second visual range; and determine the adjustment weight corresponding to the first PPD and to the second distance range among at least two adjustment weights as the first adjustment weight, and the distance between the user's eyes and the screen is within the second distance range.

[0156] In some embodiments of the present application, the processor 110 is specifically configured to calculate a first resolution based on a first pixel density and a screen size of the screen; and adjust the resolution of the screen to the first resolution.

[0157] The electronic device provided in the embodiment of the present application can implement each process implemented in the above method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0158] The beneficial effects of various implementations in this embodiment can be specifically referred to the beneficial effects of the corresponding implementations in the above method embodiment. To avoid repetition, they will not be described again here.

[0159] It should be understood that in the embodiment of the present application, the input unit 104 may include a graphics processor (Graphics Processing Unit, GPU) 1041 and a microphone 1042, and the graphics processor 1041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 106 may include a display panel 1061, and the display panel 1061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 107 includes a touch panel 1071 and at least one of other input devices 1072. The touch panel 1071 is also called a touch screen. The touch panel 1071 may include two parts: a touch detection device and a touch controller. Other input devices 1072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0160] The memory 109 can be used to store software programs and various data. The memory 109 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, an application program or instructions required for at least one function (such as a sound playback function, an image playback function, etc.), etc. In addition, the memory 109 may include a volatile memory or a non-volatile memory, or the memory 109 may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM) and a direct memory bus random access memory (DRRAM). The memory 109 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0161] The processor 110 may include one or more processing units; optionally, the processor 110 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and application programs, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It is understandable that the modem processor may not be integrated into the processor 110.

[0162] An embodiment of the present application also provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, the various processes of the above-mentioned method embodiment are implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0163] The processor is the processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer read-only memory ROM, a random access memory RAM, a magnetic disk or an optical disk.

[0164] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the various processes of the above-mentioned method embodiment, and can achieve the same technical effect. To avoid repetition, it will not be repeated here.

[0165] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0166] An embodiment of the present application provides a computer program / program product, which is stored in a storage medium. The program / program product is executed by at least one processor to implement the various processes of the above-mentioned method embodiment and can achieve the same technical effect. To avoid repetition, it will not be described here.

[0167] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article 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, article or device. In the absence of further restrictions, an element defined by the sentence "comprises one..." does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be noted that the scope of the method and device in the embodiment of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0168] Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on such an understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a computer software product, which is stored in a storage medium (such as ROM / RAM, a disk, or an optical disk), and includes a number of instructions for a terminal (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.

[0169] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A method for adjusting screen resolution, characterized in that: The method comprises: In the case of detecting that the user's eyes are looking at the screen of the electronic device, obtaining first information, the first information including: vision information of the user's eyes and the distance between the user's eyes and the screen; Determine a first pixel density based on the first information and a pixel density corresponding to a highest resolution of the screen; Based on the first pixel density, a resolution of the screen is adjusted.

2. The method according to claim 1, characterized in that The determining a first pixel density based on the first information and a pixel density corresponding to a maximum resolution of the screen includes: When the first information is different from the second information, determining the first pixel density based on the first information and a pixel density corresponding to a highest resolution of the screen; The second information includes: the vision information of the user's eyes acquired at a time before the first information is acquired and the distance between the user's eyes and the screen.

3. The method according to claim 1, characterized in that: The determining a first pixel density based on the first information and a pixel density corresponding to a maximum resolution of the screen includes: Based on the first information, determining a first adjustment weight; multiplying the first adjustment weight by the pixel density corresponding to the highest resolution to obtain the first pixel density; Among them, the value of the first adjustment weight is less than or equal to 1.

4. The method according to claim 3, characterized in that The determining a first adjustment weight based on the first information includes: Determine the adjustment weight corresponding to the first visual range and the first distance range among the at least two adjustment weights as the first adjustment weight; The vision information is within the first vision range, and the distance between the user's eyes and the screen is within the first distance range.

5. The method according to claim 3, characterized in that: The determining a first adjustment weight based on the first information includes: Determine a first PPD corresponding to a second visual range from a preset correspondence between a visual range and an angular resolution PPD, wherein the visual information is within the second visual range; The adjustment weight corresponding to the first PPD and the second distance range among at least two adjustment weights is determined as the first adjustment weight, and the distance from the user's eyes to the screen is within the second distance range.

6. The method according to claim 1, characterized in that The adjusting the resolution of the screen based on the first pixel density includes: Calculating a first resolution based on the first pixel density and the screen size of the screen; The resolution of the screen is adjusted to the first resolution.

7. A screen resolution adjustment device, characterized in that: The device comprises: an acquisition module, a determination module and an adjustment module; The acquisition module is used to acquire first information when it is detected that the user's eyes are looking at the screen of the electronic device, wherein the first information includes: vision information of the user's eyes and the distance between the user's eyes and the screen; The determining module is configured to determine a first pixel density based on the first information acquired by the acquiring module and a pixel density corresponding to a maximum resolution of the screen; The adjustment module is used to adjust the resolution of the screen based on the first pixel density determined by the determination module.

8. The device according to claim 7, characterized in that The determining module is specifically configured to determine the first pixel density based on the first information and the pixel density corresponding to the highest resolution of the screen when the first information is different from the second information; The second information includes: the vision information of the user's eyes acquired at a time before the first information is acquired and the distance between the user's eyes and the screen.

9. The device according to claim 7, characterized in that The determination module is specifically configured to determine a first adjustment weight based on the first information; and multiply the first adjustment weight by the pixel density corresponding to the highest resolution to obtain the first pixel density; Among them, the value of the first adjustment weight is less than or equal to 1.

10. The device according to claim 9, characterized in that The determining module is specifically configured to determine, among the at least two adjustment weights, the adjustment weight corresponding to the first visual range and the first distance range as the first adjustment weight; The vision information is within the first vision range, and the distance between the user's eyes and the screen is within the first distance range.

11. The device according to claim 9, characterized in that The determination module is specifically used to determine the first PPD corresponding to the second vision range from a preset correspondence between the vision range and the angular resolution PPD, and the vision information is within the second vision range; And the adjustment weight corresponding to the first PPD and the second distance range among at least two adjustment weights is determined as the first adjustment weight, and the distance between the user's eyes and the screen is within the second distance range.

12. The device according to claim 7, characterized in that The device further comprises: a calculation module; The calculation module is used to calculate a first resolution based on the first pixel density and the screen size of the screen; The adjustment module is specifically used to adjust the resolution of the screen to the first resolution calculated by the calculation module.

13. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores a program or instruction that can be run on the processor, and when the program or instruction is executed by the processor, the steps of the screen resolution adjustment method according to any one of claims 1 to 6 are implemented.

14. A readable storage medium, characterized in that: The readable storage medium stores a program or instruction, and when the program or instruction is executed by the processor, the steps of the screen resolution adjustment method according to any one of claims 1 to 6 are implemented.

15. A computer program product, characterized in that The computer program product is stored in a storage medium, and the program product is executed by at least one processor to implement the steps of the screen resolution adjustment method according to any one of claims 1 to 6.

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