CN108877734B - Color temperature adjusting method of touch display screen and related product - Google Patents
Color temperature adjusting method of touch display screen and related product Download PDFInfo
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- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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Abstract
The application provides an electronic device that colour temperature of touch-control display screen was adjusted, electronic device includes: the system comprises a touch display screen and an application processor AP, wherein the touch display screen is connected with the AP through at least one circuit; the touch display screen is used for displaying content; the AP is used for acquiring the number of black pixels and the number of white pixels in the display content of the touch display screen, wherein the black pixels are pixels with gray voltages in a first voltage interval, the white pixels are pixels with gray voltages in a second voltage interval, and the first voltage interval is smaller than the second voltage interval; the AP is used for determining a first proportion, wherein the first proportion is the ratio of the number of the black pixels to the number of the white pixels; and the AP is used for adjusting the color temperature of the touch display screen to a first color temperature value corresponding to the first proportion. The color temperature of the touch display screen can be intelligently adjusted.
Description
Technical Field
The application relates to the technical field of display, in particular to a color temperature adjusting method of a touch display screen and a related product.
Background
With the development of communication technology, electronic devices have become indispensable electronic products in people's lives, and applications on electronic devices bring great convenience to people, such as navigation, reading electronic books, browsing news, and the like.
At present, the color temperature of a touch display screen of an electronic device adopts a single fixed color temperature, and the same color temperature value is used when all application programs are operated, if the color temperature is required to be changed, the color temperature of the screen needs to be manually adjusted, or the color temperature is automatically adjusted to be a set color temperature (such as the color temperature value in an eye protection mode) in a set fixed time period. The two color temperature adjusting modes are single, have no pertinence, and have poor user experience.
Disclosure of Invention
The embodiment of the application provides a color temperature adjusting method of a touch display screen and a related product, aiming to dynamically adjust the color temperature value of the touch display screen according to display contents and solve the problem that the color temperature needs to be manually adjusted at present.
In a first aspect, an embodiment of the present application provides an electronic device for adjusting a color temperature of a touch display screen, where the electronic device includes: the system comprises a touch display screen and an application processor AP, wherein the touch display screen is connected with the AP through at least one circuit;
the touch display screen is used for displaying content;
the AP is used for acquiring the number of black pixels and the number of white pixels in the display content of the touch display screen, wherein the black pixels are pixels with gray voltages in a first voltage interval, the white pixels are pixels with gray voltages in a second voltage interval, and the first voltage interval is smaller than the second voltage interval;
the AP is used for determining a first proportion, and the first proportion is the ratio of the number of the black pixels to the number of the white pixels;
the AP is further used for adjusting the color temperature of the touch display screen to a first color temperature value corresponding to the first proportion.
In a second aspect, an embodiment of the present application provides a color temperature adjustment method for a touch display screen, where the method includes:
acquiring a first proportion of the number of black pixels to the number of white pixels in display content of a touch display screen, wherein the black pixels are pixels with gray voltages in a first voltage interval, the white pixels are pixels with gray voltages in a second voltage interval, and the first voltage interval is smaller than the second voltage interval;
and adjusting the color temperature value of the touch display screen to be a first color temperature value corresponding to the first proportion.
In a third aspect, embodiments provide a terminal comprising one or more processors, one or more memories, one or more transceivers, and one or more programs stored in the memories and configured to be executed by the one or more processors, the programs including instructions for performing the steps of the method according to the second aspect.
In a fourth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to the second aspect.
In a fifth aspect, embodiments of the present application provide a computer program product comprising a non-transitory computer readable storage medium storing a computer program, the computer operable to cause a computer to perform the method according to the second aspect.
The embodiment of the application has the following beneficial effects:
according to the embodiment of the application, the proportion of the number of black and white pixel points in the display content is obtained, the color temperature value corresponding to the display content is determined according to the proportion, and the color temperature of the touch display screen is adjusted to be the color temperature value, so that the color temperature of the touch display screen is automatically set to be the corresponding color temperature value according to the display content, and the color temperature adjustment of the screen is more intelligent and has more pertinence.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure;
fig. 2A is a schematic flowchart illustrating a color temperature adjustment method of a touch display screen according to an embodiment of the present disclosure;
fig. 2B is a schematic diagram of a mapping relationship between color temperature values and white point coordinates provided in the embodiment of the present application;
FIG. 2C is a schematic diagram of a color temperature curve provided by an embodiment of the present application;
fig. 3 is a schematic flowchart illustrating a color temperature adjustment method for a touch display screen according to another embodiment of the present disclosure;
fig. 4 is a schematic flowchart illustrating a color temperature adjustment method for a touch display screen according to another embodiment of the present disclosure;
fig. 5 is a schematic structural diagram of an electronic device disclosed in an embodiment of the present application;
FIG. 6 is a block diagram illustrating functional units of an electronic device according to an embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a smart phone disclosed in an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some, but not all, embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "first," "second," "third," "fourth," "fifth," and "sixth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, result, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
The electronic device according to the embodiments of the present application may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices or other processing devices connected to a wireless modem, and various forms of User Equipment (UE), Mobile Stations (MS), electronic Equipment (terminal), and so on. For convenience of description, the above-mentioned apparatuses are collectively referred to as electronic devices. The operating system related to the embodiment of the application is a software system which performs unified management on hardware resources and provides a service interface for a user.
Hereinafter, some terms in the present application are explained to facilitate understanding by those skilled in the art.
Specifically, the voltages of the pixels are different, the charges charged into the storage capacitors of the pixels are different, the electric field intensity established on the pixels is different, the electro-optical effect is different, and therefore the display effect of the pixels on the touch display screen is different.
The white point coordinates, i.e., color coordinates, have an x axis on the horizontal and a y axis on the vertical, where x represents the R component and y represents the B component in the RGB color pattern. In a mapping table of color temperature and color coordinates established by the National Television Systems Committee (NTSC), color coordinates of standard red are (0.67, 0.33), color coordinates of standard green are (0.21, 0.71), color coordinates of standard blue are (0.14, 0.08), and color coordinates of pure white light are (0.33 ).
Referring to fig. 1, as shown in fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 provided in the present application, where the electronic device 100 may include a housing 110, a circuit board 120, a battery 130, a cover plate 140, a touch display screen 150, and an application processor AP160, the circuit board 120, the battery 130, and the cover plate 140 are disposed on the housing 110, and at least one circuit for connecting the touch display screen 150 and the application processor AP160 is disposed on the circuit board 120.
The touch Display screen 150 may be a Thin Film Transistor-liquid crystal Display (TFT-LCD), a Light Emitting Diode (LED) Display screen, an Organic Light Emitting Diode (OLED) Display screen, or the like.
The touch display screen 150 is configured to display content and send the display content to the application processor AP 160;
the application processor AP160 is configured to receive the display content sent by the touch display screen 150, and obtain the number of black pixels and the number of white pixels in the display content, where the black pixels are pixels whose gray voltages are in a first voltage interval, the white pixels are pixels whose gray voltages are in a second voltage interval, and the first voltage interval is smaller than the second voltage interval;
the application processor AP160 is configured to determine a first ratio, where the first ratio is a ratio of the number of black pixels to the number of white pixels;
the application processor AP160 is further configured to adjust the color temperature of the touch display screen 32 to a first color temperature value corresponding to the first ratio.
Referring to fig. 2A, fig. 2A is a color temperature adjusting method of a touch display screen according to an embodiment of the present disclosure, the method includes:
step S201, obtain a first ratio of the number of black pixels to the number of white pixels in the display content of the touch display screen.
The black pixel points are pixel points with gray voltages in a first voltage interval, the white pixel points are pixel points with gray voltages in a second voltage interval, and the first voltage interval is smaller than the second voltage interval.
Optionally, the obtaining the first ratio of the number of the black pixels to the number of the white pixels specifically includes: acquiring the gray voltage of each pixel point in the display content of the touch display screen; counting all pixel points of which the gray voltages fall into a first voltage interval to obtain a first number of black pixel points in the display content, and counting all pixel points of which the gray voltages fall into a second voltage interval to obtain a second number of white pixel points in the display content; calculating the ratio of the first quantity to the second quantity to obtain the first ratio.
For example, the first voltage interval may be [0.15, 0.3], [0.15, 0.6], [0.15, 1.0] or other values, and the second interval may be [2.0, 3.7], [2.5, 3.7], [3.0, 3.7] or other values in volts.
Further, the following steps can be further adopted to obtain the first ratio of the number of the black pixels to the number of the white pixels: acquiring a preview image of display content; carrying out gray processing on the preview image to obtain a gray image, and acquiring the gray value of each pixel point in the gray image; counting all pixel points of which the gray values fall into the first gray level interval to obtain a third number of black pixel points in the display content, and counting all pixel points of which the gray values fall into the second gray level interval to obtain a fourth number of black and white pixel points in the display content; calculating the ratio of the third quantity to the fourth quantity to obtain the first ratio.
For example, the first gray scale interval may be [0, 10], [0, 20], [0, 30] or other values, and the second gray scale interval may be [200, 255], [210, 255], [220, 255] or other values.
Further, the following steps can be further adopted to obtain the first ratio of the number of the black pixels to the number of the white pixels: binarizing the gray level image to obtain a binary image of the gray level image; counting all pixel points with the gray value of 0 to obtain a fifth number of black pixel points in the display content; and counting all the pixel points with the gray value of 1 to obtain the sixth number of the white pixel points in the display content, and calculating the ratio of the fifth number to the sixth number to obtain the first ratio.
Step S202, adjusting the color temperature value of the touch display screen to a first color temperature value corresponding to the first ratio.
Optionally, adjusting the color temperature of the touch display screen to the first color temperature value specifically includes: determining a first color temperature value corresponding to the first ratio according to a mapping relationship between the color temperature value and a ratio of the number of black pixels to the number of white pixels, which is established in advance, and further determining a first white point coordinate corresponding to the first color temperature value according to a mapping relationship table between the color temperature value and the white point coordinate shown in fig. 2B, and adjusting the white point coordinate of the touch display screen to the first white point coordinate, namely, adjusting the color temperature of the touch display screen to the first color temperature value, wherein fig. 2B is only a partial schematic diagram of the mapping relationship between the color temperature value and the white point coordinate.
For example, as shown in fig. 2C, a color temperature curve of the ratio of the number of black pixels to the number of white pixels and the color temperature value may be pre-established, and the abscissa of the color temperature curve is a black imageThe ratio of the number of pixel points to the white pixel point data, the ordinate being the colour temperature value, e.g. the first ratio being 0.8 x 10-3Then the first color temperature value is 4000K (K is the unit of color temperature value, calvin). From the mapping table shown in fig. 2B, the first white point coordinates are (0.3805, 0.3766), so that the color temperature of the touch display screen can be adjusted to 4000K by adjusting the white point coordinates of the touch display screen to (0.3805, 0.3766).
Furthermore, a mapping relation table of the ratio of the number of black pixels to the number of white pixels to the color temperature value can be established in advance, and the mapping relation table is inquired to obtain a first color temperature value corresponding to the first ratio; or, a function expression of the ratio of the number of black pixels to the number of white pixels to the color temperature value may be pre-established, and the first ratio is substituted into the function expression to obtain the first color temperature value. The method and the device do not limit the specific form of establishing the mapping relation between the ratio of the number of the black pixels to the number of the white pixels and the color temperature value.
It can be seen that, in the embodiment of the application, the first ratio of the number of the black pixels to the number of the white pixels in the display content is obtained, the first color temperature value corresponding to the display content is determined according to the first ratio, and the color temperature of the touch display screen is adjusted to the first color temperature value, so that the color temperature of the screen is automatically adjusted to the corresponding first color temperature value according to the display content, the problems of manually adjusting the color temperature and adopting a single color temperature for a long time are solved, the color temperature adjustment of the screen is more intelligent, the color temperature value is determined according to the display content to be more targeted, and the adjusted color temperature meets the visual effect of a user.
For a scene playing a video, if a current color temperature of an electronic device does not match a color temperature of a scene in the video, a problem of dazzling or excessively dark background may occur.
Referring to fig. 3, fig. 3 is a color temperature adjusting method of another touch display screen provided in the embodiment of the present application, where the method includes:
step S301, when the display content is a video, extracting a first time length belonging to a first scene and a second time length belonging to a second scene in the video.
For example, the first scene is a day scene, and the second scene is a night scene; or the first scene is a night scene and the second scene is a day scene. The present application does not limit the specific scene forms of the first scene and the second scene, and is only exemplary here.
It can be understood that the total playing time and the playing content of each video are fixed, so that the total playing time of the video is firstly extracted when the video is played, a plurality of sub-periods belonging to a daytime scene in the total playing time are extracted, the plurality of sub-periods are sequentially connected in series according to the playing sequence to obtain a first time of the daytime scene, and a second time of a night scene can also be obtained.
Step S302, extracting a first group of pictures within the first time length at a first sampling frequency, obtaining the proportion of the number of black pixels to the number of white pixels in each picture in the first group of pictures, determining the color temperature value corresponding to each picture in the first group of pictures according to the proportion of the number of black pixels to the number of white pixels in each picture in the first group of pictures, and determining the first average color temperature value corresponding to the first group of pictures according to the color temperature value corresponding to each picture in the first group of pictures.
Optionally, for a video within the first duration, the scene change is large, if the ratio of black and white pixels in each display content is obtained in real time, the performance requirement on the processor is high, and if the color temperature of the touch display screen is constantly changed by constantly and dynamically adjusting according to the display content, the following scheme may be adopted: sampling the video within the first time length, extracting a first group of pictures, determining the proportion of the number of black pixels to the number of white pixels of each picture in the first group of pictures, determining the color temperature value corresponding to the proportion of the number of black pixels to the number of white pixels of each picture, then acquiring the color temperature values corresponding to all the pictures in the first group of pictures, calculating first average color temperature values corresponding to the color temperature values of all the pictures in the first group of pictures, and taking the first average color temperature value as the color temperature value of the daytime scene. It can be understood that if the color temperature values corresponding to each picture in the first group of pictures are the same, the average color temperature value does not need to be calculated, the color temperature value corresponding to any picture in the first group of pictures is selected as the average color temperature value, and if the color temperature values corresponding to at least two pictures in the first group of pictures are different, the first average color temperature value of the first group of pictures needs to be calculated.
The first sampling frequency may be dynamically set according to the number of pictures that can be processed in the processor unit time and the first duration, for example, n pictures may be processed in the processor unit time, and if the first duration is T, the first sampling frequency f may be set to be n/T.
Step S303, extracting a second group of pictures within the second time length at a second sampling frequency, obtaining the proportion of the number of black pixels to the number of white pixels in each picture in the second group of pictures, determining a color temperature value corresponding to each picture in the second group of pictures according to the proportion of the number of black pixels to the number of white pixels in each picture in the second group of pictures, and determining a second average color temperature value corresponding to the second group of pictures according to the color temperature value corresponding to each picture in the second group of pictures.
Alternatively, the daytime scene-based processing method may determine a second average color temperature value for a night scene, which will not be described herein.
Step S304, when the frequency playing time is within the first time length, the color temperature of the touch display screen is adjusted to the first average color temperature value, and when the frequency playing time is within the second time length, the color temperature of the touch display screen is adjusted to the second average color temperature value.
It can be seen that, in the embodiment of the application, a first average color temperature value corresponding to a daytime scene where a video is played is determined first, a second average color temperature value corresponding to a nighttime scene is determined, and the color temperature of the touch display screen is adjusted to the color temperature value corresponding to the scene when the video is played, so that the color temperature of the touch display screen is dynamically adjusted when the video is played, the color temperature of the touch display screen is matched with the played content, the appreciation of a user is ensured, and the problems of glaring, dark background and the like caused by mismatching of the color temperature of the touch display screen when the video is watched are solved. Moreover, the color temperature is automatically adjusted during video playing, so that the color temperature adjustment is more intelligent.
For the scenes for reading electronic books, the eyesight can be protected by opening an eye protection mode or manually adjusting the color temperature of the electronic device, but the two adjustment modes are single, and the adjusted color temperature does not necessarily meet the requirements of users, and the following solutions are provided based on the above problems.
Referring to fig. 4, fig. 4 is a color temperature adjusting method of another touch display screen provided in the embodiment of the present application, where the method includes:
step S401, if the display content is a text, acquiring a first proportion of the number of black pixels to the number of white pixels in the display content.
The text indicates that all the display contents of the touch display screen are texts or the ratio of the texts in the touch display screen is greater than a preset threshold, wherein the first ratio is a specific numerical value when the display contents in the step S201 are texts, so the first ratio in the step S401 is only a special form when the display contents are texts.
Step S402, determining a first color temperature value corresponding to the first ratio, and adjusting the color temperature of the touch display screen to the first color temperature value.
And S403, controlling the color temperature of the touch display screen to keep the first color temperature value when displaying any text.
Optionally, after determining the first color temperature value required by the reading mode, the first color temperature value is maintained when the text content is browsed again, for the following reasons: when the electronic book is read, the content of each section of the electronic book is characters, the proportion of black and white pixel points corresponding to each section in the touch display screen is basically the same, so that in a reading mode, if the color temperature of the touch display screen is constantly and dynamically adjusted according to the display content, the power consumption is high, a first color temperature value when the display content is a text can be obtained, the color temperature value is used as a color temperature value in the reading mode, furthermore, an updating period can be set, after the updating period is exceeded, a second color temperature value when the display content is in the text mode is obtained again, the color temperature of the touch display screen is adjusted to the second color temperature value in the reading mode, and the color temperature value in the reading mode is periodically adjusted, so that the requirement of protecting eyesight is met, and the power consumption is reduced.
It can be seen that, according to the embodiment of the application, when a user enters a reading mode, a first color temperature value corresponding to display content of a display page in the reading mode is obtained, and when the user enters the reading mode, the touch display screen is controlled to keep the first color temperature value, so that the color temperature of the touch display screen is automatically adjusted during reading, and the color temperature matched with the reading content is achieved, thereby protecting the eyesight of the user and improving the user experience.
Optionally, based on the methods described in fig. 2, fig. 3, and fig. 4, the present application further includes the following method:
obtaining the environmental light brightness, and determining an environmental color temperature value according to the environmental light brightness;
determining a difference value between the ambient color temperature value and the first color temperature value, and if the difference value is greater than a threshold value, determining a second color temperature value according to the ambient color temperature value and the first color temperature value, wherein the second color temperature value is a color temperature value with the minimum sum of an absolute value of the difference value between the ambient color temperature value and the color temperature curve and an absolute value of the difference value between the ambient color temperature value and the color temperature curve;
and adjusting the color temperature of the touch display screen to the second color temperature value.
Based on the environmental factors, for example, when the color temperature of the touch display screen is adjusted to the first color temperature value when reading an electronic book at night, the difference between the two is too large, and if the color temperature of the touch display screen is simply adjusted to the first color temperature value, the user experience is poor.
Optionally, the determining the second color temperature value specifically includes: determining a functional expression f (x) of the color temperature curve, e.g. a first ratio x0The first color temperature value is f (x)0) Assuming that the ambient color temperature value is P, the ratio of black and white pixel points corresponding to the second color temperature value is x1If so, the sum S | f (x) of the absolute value of the difference between the second color temperature value and the ambient color temperature value and the absolute value of the difference between the second color temperature value and the ambient color temperature value1)-f(x0) I + I f (x)1) P is, taking x when S is minimized1The x is1Substitution letterObtaining a second color temperature value f (x) by a numerical expression f (x)1)。
Optionally, determining the ambient color temperature value according to the ambient light brightness specifically includes: determining a spectral response function of the ambient light according to the ambient light brightness; determining a stimulus value of ambient light based on the frequency spectrum response function and a pre-stored frequency spectrum response function of the touch display screen; determining the ambient light color temperature value based on the stimulus value of the ambient light.
It can be seen that, in the embodiment of the application, if the difference between the color temperature value corresponding to the display content and the ambient color temperature value is greater than the threshold, the second color temperature value is determined in the color temperature curve, the color temperature of the touch display screen is adjusted to the second color temperature value, the influence of the two factors of the display content and the environment on the color temperature value is comprehensively considered, the viewing effect of the user is further improved, and the eyesight is protected.
Further, the method further comprises:
acquiring a face image, and extracting facial features of the face image;
identifying a facial expression of the facial image according to the facial features;
and adjusting the color temperature of the touch display screen to a color temperature value corresponding to the facial expression.
Optionally, the reason for adjusting the color temperature value of the touch display screen based on the facial expression is as follows: the color temperature value can be used for adjusting emotion, so that a current face image of a user is obtained, the current emotion is determined according to the face image, the color temperature of the touch display screen is adjusted to be the color temperature value corresponding to the emotion, and therefore the emotion of the user can be adjusted.
Consistent with the embodiments shown in fig. 2, fig. 3, and fig. 4, please refer to fig. 5, fig. 5 is a schematic structural diagram of an electronic device 500 provided in an embodiment of the present application, where the electronic device 500 includes a touch display screen as shown in fig. 5, the electronic device 500 includes a processor, a memory, a communication interface, and one or more programs, where the one or more programs are different from the one or more application programs, and the one or more programs are stored in the memory and configured to be executed by the processor, and the programs include instructions for performing the following steps;
acquiring a first proportion of the number of black pixels to the number of white pixels in display content of the touch display screen, wherein the black pixels are pixels with gray voltages in a first voltage interval, the white pixels are pixels with gray voltages in a second voltage interval, and the first voltage interval is smaller than the second voltage interval;
and adjusting the color temperature value of the touch display screen to be a first color temperature value corresponding to the first proportion.
In a possible example, in terms of adjusting the color temperature of the touch display screen to a first color temperature value corresponding to the first ratio, the instructions in the program are specifically configured to perform the following operations: determining a first color temperature value corresponding to the first ratio according to a mapping relation between the ratio of the number of black pixels to the number of white pixels and the color temperature value, determining a first white point coordinate corresponding to the first color temperature value according to a mapping relation between the color temperature value and the white point coordinate, and adjusting the white point coordinate of the touch display screen to be the first white point coordinate.
In a possible example, the instructions in the program are specifically configured to perform the following operations when the display content is a video: extracting a first time length belonging to a first scene and a second time length belonging to a second scene in the video, extracting a first group of pictures in the first time length at a first sampling frequency, obtaining the proportion of the number of black pixel points to the number of white pixel points in each picture in the first group of pictures, determining the color temperature value corresponding to each picture in the first group of pictures according to the proportion of the number of black pixel points to the number of white pixel points in each picture in the first group of pictures, determining the first average color temperature value corresponding to the first group of pictures according to the color temperature value corresponding to each picture in the first group of pictures, extracting a second group of pictures in the second time length at a second sampling frequency, obtaining the proportion of the number of black pixel points to the number of white pixel points in each picture in the second group of pictures, determining the color temperature value corresponding to each picture in the second group of pictures according to the proportion of the number of black pixel points to the number of white pixel points in each picture in the second group of pictures, and determining a second average color temperature value corresponding to the second group of pictures according to the color temperature value corresponding to each picture in the second group of pictures, adjusting the color temperature of the touch display screen to the first average color temperature value when the playing time of the video is within the first time length, and adjusting the color temperature of the touch display screen to the second average color temperature value when the playing time of the video is within the second time length.
In a possible example, when the display content is a text, the instructions in the program are specifically configured to perform the following operations: obtaining a first proportion of the number of black pixels to the number of white pixels in the display content, determining a first color temperature value corresponding to the first proportion, adjusting the color temperature of the touch display screen to the first color temperature value, and controlling the color temperature of the touch display screen to keep the first color temperature value when any text content is browsed.
In a possible example, the instructions in the program above are further configured to: obtaining the ambient light brightness, determining an ambient color temperature value according to the ambient light brightness, determining a difference value between the ambient color temperature value and the first color temperature value, if the difference value is greater than a threshold value, determining a second color temperature value according to the ambient color temperature value and the first color temperature value, and adjusting the color temperature of the touch display screen to the second color temperature value.
Referring to fig. 6, fig. 6 is a block diagram illustrating a possible functional unit composition of the electronic device 600 for channel selection according to the above embodiment, where the electronic device 600 includes an obtaining unit 610, an adjusting unit 620, and an extracting unit 630;
the acquiring unit 610 is configured to acquire a first ratio of the number of black pixels to the number of white pixels in display content of the touch display screen;
an adjusting unit 620, configured to adjust the color temperature value of the touch display screen to a first color temperature value corresponding to the first ratio;
in terms of adjusting the color temperature of the touch display screen to the first color temperature value corresponding to the first ratio, the adjusting unit 620 is specifically configured to determine the first color temperature value corresponding to the first ratio according to a mapping relationship between the ratio of the number of black pixels to the number of white pixels and the color temperature value, determine the first white point coordinate corresponding to the first color temperature value according to a mapping relationship between the color temperature value and the white point coordinate, and adjust the white point coordinate of the touch display screen to the first white point coordinate.
In a possible example, when the display content is a video, the extracting unit 630 is configured to extract a first duration belonging to a first scene and a second duration belonging to a second scene within a duration of the video, extract a first group of pictures at a first sampling frequency within the first duration, the obtaining unit 610 is configured to obtain a ratio of the number of black pixels to the number of white pixels in each picture in the first group of pictures, determine a color temperature value corresponding to each picture in the first group of pictures according to the ratio of the number of black pixels to the number of white pixels in each picture in the first group of pictures, determine a first average color temperature value corresponding to the first group of pictures according to the color temperature value corresponding to each picture in the first group of pictures, the extracting unit 630 is configured to extract a second group of pictures at a second sampling frequency within the second duration, and the obtaining unit 610 is configured to obtain a ratio of the number of black pixels to the number of white pixels in each picture in the second group of pictures The adjusting unit 620 is configured to adjust the color temperature of the touch display screen to the first average color temperature value when the video playing time is within the first duration, and adjust the color temperature of the touch display screen to the second average color temperature value when the video playing time is within the second duration.
In a possible example, when the display content is a text, the obtaining unit 610 is configured to obtain a first ratio of the number of black pixels to the number of white pixels in the display content, determine a first color temperature value corresponding to the ratio, and the adjusting unit 620 is configured to adjust the color temperature of the touch display screen to the first color temperature value, and control the color temperature of the touch display screen to maintain the color temperature value when browsing any text content.
In a possible example, the obtaining unit 610 is further configured to obtain ambient light brightness, determine an ambient color temperature value according to the ambient light brightness, determine a difference between the ambient color temperature value and the first color temperature value, and if the difference is greater than a threshold, determine a second color temperature value according to the ambient color temperature value and the first color temperature value, and the adjusting unit 620 is configured to adjust the color temperature of the touch display screen to the second color temperature value.
Referring to fig. 7, fig. 7 is a block diagram illustrating a partial structure of a mobile phone related to a terminal provided in an embodiment of the present application. Referring to fig. 7, the handset includes: radio Frequency (RF) circuit 710, memory 720, input unit 730, sensor 750, audio circuit 760, WIFI module 770, application processor 780, and power supply 790. Those skilled in the art will appreciate that the handset configuration shown in fig. 7 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The following describes each component of the mobile phone in detail with reference to fig. 7:
the input unit 730 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the cellular phone. Specifically, the input unit 730 may include a touch display screen 733, a fingerprint recognition device 731, a face recognition device 734, an iris recognition device 735, and other input devices 732. In particular, other input devices 732 may include, but are not limited to, one or more of physical keys, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The application processor 780 is configured to obtain a first ratio of the number of black pixels to the number of white pixels in the display content of the touch display screen 733, and adjust the color temperature value of the touch display screen to a first color temperature value corresponding to the first ratio.
Optionally, in terms of adjusting the color temperature of the touch display screen to the first color temperature value corresponding to the first ratio, the application processor 780 is specifically configured to determine the first color temperature value corresponding to the first ratio according to a mapping relationship between the ratio of the number of black pixels to the number of white pixels and the color temperature value, determine the first white point coordinate corresponding to the first color temperature value according to a mapping relationship between the color temperature value and the white point coordinate, and adjust the white point coordinate of the touch display screen to the first white point coordinate.
Optionally, when the display content is a video, the application processor 780 is further configured to extract a first duration belonging to a first scene and a second duration belonging to a second scene in the video, and when the application processor 780 acquires the number of black pixels and the number of white pixels in the display content of the touch display screen and determines the first ratio, the application processor 780 is specifically configured to: extracting a first group of pictures within the first time period at a first sampling frequency, obtaining the proportion of the number of black pixels to the number of white pixels in each picture in the first group of pictures, determining the color temperature value corresponding to each picture in the first group of pictures according to the proportion of the number of black pixels to the number of white pixels in each picture in the first group of pictures, determining the first average color temperature value corresponding to the first group of pictures according to the color temperature value corresponding to each picture in the first group of pictures, extracting a second group of pictures within the second time period at a second sampling frequency within the second time period, obtaining the proportion of the number of black pixels to the number of white pixels in each picture in the second group of pictures, and determining the color temperature value corresponding to each picture in the first group of pictures according to the proportion of the number of black pixels to the number of white pixels in each picture in the second group of pictures, determining a second average color temperature value corresponding to the first group of pictures according to the color temperature value corresponding to each picture in the first group of pictures, and applying the processor 780, when the color temperature of the touch display screen is adjusted to the first color temperature value corresponding to the first ratio, specifically configured to: and when the video playing time is within the first time length, adjusting the color temperature of the touch display screen to the first average color temperature value, and when the video playing time is within the second time length, adjusting the color temperature of the touch display screen to the second average color temperature value.
Optionally, when the display content is a text, the application processor 780 is specifically configured to obtain a second ratio of the number of black pixels to the number of white pixels in the display content when determining the first ratio, and when adjusting the color temperature of the touch display screen to a first color temperature value corresponding to the first ratio, the application processor 780 is specifically configured to: and determining a first color temperature value corresponding to the first ratio, adjusting the color temperature of the touch display screen to the first color temperature value, and applying the processor 780 to control the color temperature of the touch display screen to maintain the first color temperature value when browsing any text content.
Optionally, the application processor 780 is further configured to obtain ambient light brightness, determine an ambient color temperature value according to the ambient light brightness, determine a difference between the ambient color temperature value and the first color temperature value, determine a second color temperature value according to the ambient color temperature value and the first color temperature value if the difference is greater than a threshold, and adjust the color temperature of the touch display screen to the second color temperature value.
The application processor 780 is a control center of the mobile phone, connects various parts of the entire mobile phone by using various interfaces and lines, and performs various functions of the mobile phone and processes data by operating or executing software programs and/or modules stored in the memory 720 and calling data stored in the memory 720, thereby integrally monitoring the mobile phone. Optionally, the applications processor 780 may include one or more processing units.
Further, the memory 720 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.
The RF circuitry 710 may be used for the reception and transmission of information. In general, the RF circuit 710 includes, but is not limited to, an antenna, at least one Amplifier, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the RF circuit 710 may also communicate with networks and other devices via wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), etc.
The handset may also include at least one sensor 750, such as a light sensor, motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor and a proximity sensor, wherein the ambient light sensor may adjust the brightness of the touch display screen according to the brightness of ambient light, and the proximity sensor may turn off the touch display screen and/or the backlight when the mobile phone moves to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.
WIFI belongs to short-distance wireless transmission technology, and the mobile phone can help a user to receive and send electronic mails, browse webpages, access streaming media and the like through the WIFI module 770, and provides wireless broadband internet access for the user. Although fig. 7 shows the WIFI module 770, it is understood that it does not belong to the essential constitution of the handset, and it can be omitted entirely as needed within the scope of not changing the essence of the application.
The handset also includes a power supply 790 (e.g., a battery) for providing power to the various components, optionally, the power supply may be logically connected to the application processor 780 via a power management system, so as to implement functions such as managing charging, discharging, and power consumption via the power management system.
Although not shown, the mobile phone may further include a camera, a bluetooth module, a light supplement device, a light sensor, and the like, which are not described herein again.
The present application further provides a computer storage medium, wherein the computer storage medium stores a computer program for electronic data exchange, and the computer program enables a computer to execute part or all of the steps of any one of the color temperature adjusting methods for a touch display screen as described in the above method embodiments.
Embodiments of the present application further provide a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program, where the computer program is operable to cause a computer to execute some or all of the steps of any one of the color temperature adjustment methods for a touch display screen as described in the above method embodiments.
It should be noted that, for simplicity of description, the above-mentioned method embodiments are described as a series of acts or combination of acts, but those skilled in the art will recognize that the present application is not limited by the order of acts described, as some steps may occur in other orders or concurrently depending on the application. Further, those skilled in the art should also appreciate that the embodiments described in the specification are exemplary embodiments and that the acts and modules referred to are not necessarily required in this application.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one type of division of logical functions, and there may be other divisions when actually implementing, for example, a plurality of units or components may be combined or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of some interfaces, devices or units, and may be an electric or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit may be implemented in the form of hardware, or may be implemented in the form of a software program module.
The integrated units, if implemented in the form of software program modules and sold or used as stand-alone products, may be stored in a computer readable memory. Based on such understanding, the technical solution of the present application may be substantially implemented or a part of or all or part of the technical solution contributing to the prior art may be embodied in the form of a software product stored in a memory, and including several instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method described in the embodiments of the present application. And the aforementioned memory comprises: a U-disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic or optical disk, and other various media capable of storing program codes.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable memory, which may include: flash Memory disks, Read-Only memories (ROMs), Random Access Memories (RAMs), magnetic or optical disks, and the like.
The foregoing detailed description of the embodiments of the present application has been presented to illustrate the principles and implementations of the present application, and the above description of the embodiments is only provided to help understand the method and the core concept of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (13)
1. An electronic device for adjusting color temperature of a touch display screen, the electronic device comprising: the system comprises a touch display screen and an application processor AP, wherein the touch display screen is connected with the AP through at least one circuit;
the touch display screen is used for displaying content;
the AP is used for acquiring the number of black pixels and the number of white pixels in the display content of the touch display screen, wherein the black pixels are pixels with gray voltages in a first voltage interval, the white pixels are pixels with gray voltages in a second voltage interval, and the first voltage interval is smaller than the second voltage interval;
the AP is used for determining a first proportion, and the first proportion is the ratio of the number of the black pixels to the number of the white pixels;
the AP is further used for adjusting the color temperature of the touch display screen to a first color temperature value corresponding to the first proportion;
wherein,
when the color temperature of the touch display screen is adjusted to the first color temperature value corresponding to the first ratio, the AP is specifically configured to: determining a first color temperature value corresponding to the first ratio according to a mapping relation between the ratio of the number of black pixels to the number of white pixels and the color temperature value, determining a first white point coordinate corresponding to the first color temperature value according to a mapping relation between the color temperature value and the white point coordinate, and adjusting the white point coordinate of the touch display screen to be the first white point coordinate.
2. The electronic device of claim 1,
the AP is further configured to: when the display content is a video, extracting a first time length belonging to a first scene and a second time length belonging to a second scene in the video;
the AP is specifically configured to, when acquiring the number of black pixels and the number of white pixels in the display content of the touch display screen and determining the first ratio: extracting a first group of pictures within the first time length at a first sampling frequency, acquiring the proportion of the number of black pixels to the number of white pixels in each picture in the first group of pictures, and according to the proportion of the number of the black pixels to the number of the white pixels in each picture in the first group of pictures; the image processing device is used for extracting a second group of images within the second time length at a second sampling frequency, acquiring the proportion of the number of black pixels to the number of white pixels in each image in the second group of images, and according to the proportion of the number of black pixels to the number of white pixels in each image in the second group of images;
when the color temperature of the touch display screen is adjusted to the first color temperature value corresponding to the first ratio, the AP is specifically configured to: determining a color temperature value corresponding to each picture in the first group of pictures, and determining a first average color temperature value corresponding to the first group of pictures according to the color temperature value corresponding to each picture in the first group of pictures; the color temperature value corresponding to each picture in the second group of pictures is determined, and a second average color temperature value corresponding to the second group of pictures is determined according to the color temperature value corresponding to each picture in the second group of pictures; and the color temperature control unit is used for adjusting the color temperature of the touch display screen to the first average color temperature value when the playing time of the video is within the first time length, and adjusting the color temperature of the touch display screen to the second average color temperature value when the playing time of the video is within the second time length.
3. The electronic device of claim 1,
when determining the first ratio, the AP is specifically configured to: when the display content is a text, determining a first proportion of the display content;
when the color temperature of the touch display screen is adjusted to the first color temperature value corresponding to the first ratio, the AP is specifically configured to: and determining a first color temperature value corresponding to the first proportion, and adjusting the color temperature of the touch display screen to the first color temperature value.
4. The electronic device of claim 3,
the AP is further used for controlling the color temperature of the touch display screen to keep the first color temperature value when any text content is displayed.
5. The electronic device of claim 1,
the AP is further configured to obtain ambient light brightness, determine an ambient color temperature value according to the ambient light brightness, determine a difference between the ambient color temperature value and the first color temperature value, determine a second color temperature value according to the ambient color temperature value and the first color temperature value if the difference is greater than a threshold, and adjust the color temperature of the touch display screen to the second color temperature value.
6. A color temperature adjusting method of a touch display screen is characterized by comprising the following steps:
acquiring a first proportion of the number of black pixels to the number of white pixels in display content of a touch display screen, wherein the black pixels are pixels with gray voltages in a first voltage interval, the white pixels are pixels with gray voltages in a second voltage interval, and the first voltage interval is smaller than the second voltage interval;
adjusting the color temperature value of the touch display screen to a first color temperature value corresponding to the first proportion;
wherein, the adjusting the color temperature of the touch display screen to the first color temperature value corresponding to the first ratio includes:
determining a first color temperature value corresponding to the first ratio according to the mapping relation between the ratio of the number of black pixels to the number of white pixels and the color temperature value;
and determining a first white point coordinate corresponding to the first color temperature value according to the mapping relation between the color temperature value and the white point coordinate, and adjusting the white point coordinate of the touch display screen to be the first white point coordinate.
7. The method of claim 6, further comprising:
when the display content is a video, extracting a first time length belonging to a first scene and a second time length belonging to a second scene in the video;
the acquiring of the first ratio of the number of the black pixels to the number of the white pixels in the display content of the touch display screen includes: extracting a first group of pictures at a first sampling frequency within the first time length to obtain the proportion of the number of black pixels to the number of white pixels in each picture in the first group of pictures, extracting a second group of pictures at a second sampling frequency within the second time length to obtain the proportion of the number of black pixels to the number of white pixels in each picture in the second group of pictures;
the adjusting the color temperature value of the touch display screen to the first color temperature value corresponding to the first proportion includes: determining the color temperature value corresponding to each picture in the first group of pictures according to the ratio of the number of black pixels to the number of white pixels in each picture in the first group of pictures, determining a first average color temperature value corresponding to the first group of pictures according to the color temperature value corresponding to each picture in the first group of pictures, determining the color temperature value corresponding to each picture in the second group of pictures according to the ratio of the number of black pixels to the number of white pixels in each picture in the second group of pictures, determining a second average color temperature value corresponding to the second group of pictures according to the color temperature value corresponding to each picture in the second group of pictures, when the playing time of the video is within the first time length, the color temperature of the touch display screen is adjusted to the first average color temperature value, and when the video playing time is within the second time length, adjusting the color temperature of the touch display screen to the second average color temperature value.
8. The method according to claim 6, wherein the obtaining of the first ratio of the number of black pixels to the number of white pixels in the display content of the touch display screen comprises:
and when the display content is a text, acquiring a first proportion of the display content.
9. The method of claim 8, further comprising:
and when any text content is displayed, controlling the color temperature of the touch display screen to keep the first color temperature value.
10. The method of claim 6, further comprising:
obtaining the ambient light brightness, determining an ambient color temperature value according to the ambient light brightness, determining a difference value between the ambient color temperature value and the first color temperature value, if the difference value is greater than a threshold value, determining a second color temperature value according to the ambient color temperature value and the first color temperature value, and adjusting the color temperature of the touch display screen to the second color temperature value.
11. An electronic device for adjusting color temperature of a touch display screen, the electronic device comprising:
the touch control display screen comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring a first proportion of the number of black pixels to the number of white pixels in display content of the touch control display screen, the black pixels are pixels with gray voltages in a first voltage interval, the white pixels are pixels with gray voltages in a second voltage interval, and the first voltage interval is smaller than the second voltage interval;
the adjusting unit is used for adjusting the color temperature of the touch display screen to a first color temperature value corresponding to the first proportion;
wherein the adjusting the color temperature of the touch display screen to the first color temperature value corresponding to the first ratio includes: determining a first color temperature value corresponding to the first ratio according to the mapping relation between the ratio of the number of black pixels to the number of white pixels and the color temperature value; and determining a first white point coordinate corresponding to the first color temperature value according to the mapping relation between the color temperature value and the white point coordinate, and adjusting the white point coordinate of the touch display screen to be the first white point coordinate.
12. An electronic device comprising a processor, a memory, a communication interface, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the processor, the programs comprising instructions for performing the steps of the method of any of claims 6-10.
13. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for electronic data exchange, wherein the computer program causes a computer to perform the method according to any one of claims 6-10, the computer comprising an electronic device.
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| CN110675839A (en) * | 2019-10-11 | 2020-01-10 | Oppo广东移动通信有限公司 | Screen adjusting method, electronic equipment and related device |
| CN111552451B (en) * | 2020-04-09 | 2023-08-22 | RealMe重庆移动通信有限公司 | Display control method and device, computer readable medium and terminal equipment |
| CN112946896B (en) * | 2021-02-03 | 2023-06-27 | 上海闻泰信息技术有限公司 | Wearable device, transmittance adjustment system, method, and readable storage medium |
| CN113760429A (en) * | 2021-08-23 | 2021-12-07 | 联想(北京)有限公司 | Control method and control device |
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