CN115048024A - Local brightness adjusting method, system, storage medium and electronic equipment thereof - Google Patents
Local brightness adjusting method, system, storage medium and electronic equipment thereof Download PDFInfo
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Abstract
The invention relates to a local brightness adjusting method, a local brightness adjusting system, a storage medium and electronic equipment of the storage medium. The local brightness adjusting method comprises the following steps: the method comprises the steps of obtaining face position information of a user, and determining a first adjusting area of a display screen according to the face position information; acquiring a touch point position of a user for touch operation on a display screen, and determining a second adjusting area according to the touch point position and the first adjusting area, wherein when the touch point position falls in the first adjusting area, the second adjusting area is at least partially overlapped with the first adjusting area, or when the touch point position does not fall in the first adjusting area, the second adjusting area is shifted towards the first adjusting area relative to the touch point position; adjusting the brightness of the first and second adjustment regions. The invention ensures the display effect of high brightness and high contrast of the display screen and improves the visual experience of a short-distance operation user.
Description
Technical Field
The present invention relates to the field of display device technologies, and in particular, to a method and a system for adjusting local brightness, a storage medium, and an electronic device using the same.
Background
In various scene application modes of the display device, the short-distance operation experience and the normal long-distance viewing effect have certain contradiction, the high-brightness and high-contrast display of the large touch screen (such as an LCD display, a Mini LED display and a Micro LED display) brings excellent visual perception for viewers, but the short-distance highlight also brings uncomfortable feelings to operators (short-distance operations needing writing, controlling and the like with the large touch screen), such as photophobia of eyes, visual fatigue and burning sensation of the face. However, if the close-range operator is protected by reducing the brightness of the full screen, the display effect is affected, the superior visual effect brought by high brightness and high contrast cannot be displayed, and poor experience is brought to a viewer.
Disclosure of Invention
The present invention is directed to overcome at least one of the above-mentioned drawbacks of the prior art, and provides a local brightness adjustment method, system, storage medium and electronic device thereof, which are used to provide a good operation experience for a short-distance operator.
The invention adopts the technical scheme that a local brightness adjusting method comprises the following steps:
acquiring face position information of a user, and determining a first adjusting area of a display screen according to the face position information;
acquiring a touch point position of a user for performing touch operation on a display screen, and determining a second adjusting area according to the touch point position and the first adjusting area, wherein when the touch point position falls in the first adjusting area, the second adjusting area is at least partially overlapped with the first adjusting area, or when the touch point position does not fall in the first adjusting area, the second adjusting area is shifted towards the first adjusting area relative to the touch point position;
adjusting the brightness of the first and second adjustment regions.
The invention discloses a local brightness adjusting method, which adaptively adjusts the brightness of a local area based on the angle of a near-distance operation user on a touch display screen, meets the visual perception of a viewer and improves the operation experience of the near-distance operation user, and the method specifically comprises the following steps: firstly, acquiring face position information of a user, and determining a display area corresponding to the face position information on a display screen as a first adjusting area according to the face position information of the user; secondly, acquiring a touch point position of a user when the user performs touch operation on the display screen, and determining a second adjusting area according to the touch point position and the position of the first adjusting area, wherein the second adjusting area is formed according to the relative position relationship between the touch point position and the position of the first adjusting area, and the second adjusting area is at least partially overlapped with the first adjusting area when the touch point position is in the first adjusting area or is deviated towards the first adjusting area relative to the touch point position when the touch point position is not in the first adjusting area; finally, the brightness of the first adjusting area and the brightness of the second adjusting area are adjusted respectively.
According to the local brightness adjusting method, a first adjusting area of a display screen is determined through face position information, a second adjusting area of the display screen is determined through the position relation between a touch point position and the first adjusting area, and then the brightness of the first adjusting area and the brightness of the second adjusting area are adjusted in a self-adaptive mode, so that the visual experience of a short-distance operation user is considered, and the brightness display effect of the display screen is met; the position of the touch point is combined with the position of the first adjusting area to form a second adjusting area which is deviated to the first adjusting area, namely, the second adjusting area which is deviated to the face position of the user relative to the position of the touch point is formed, the ingenious design of the second adjusting area meets the visual experience of the short-distance operation user, and the display effect of a long-distance viewer is not influenced.
Further, when the position of the touch point falls within a first adjustment area, the second adjustment area at least partially overlaps with the first adjustment area, or when the position of the touch point does not fall within the first adjustment area, the second adjustment area shifts toward the first adjustment area relative to the position of the touch point, specifically including:
if the position of the touch point is in the first adjusting area, determining a display area in a preset range as a second adjusting area by taking the position of the touch point as a central point, wherein the second adjusting area is at least partially overlapped with the first adjusting area;
if the position of the touch point does not fall into the first adjusting area, determining a display area in a preset range as a second adjusting area according to the position of the touch point, and enabling the center point of the second adjusting area to deviate from the first adjusting area relative to the position of the touch point.
The method further defines a second adjusting area according to the actual touch condition and the visual relationship of an operation user, and specifically includes two conditions, wherein when the position of the touch point is in the first adjusting area, namely the touch point is perpendicular to the visual direction of the user, the visual range of the user takes the touch point as a central point, the display area in a preset range is determined as the second adjusting area, at least part of the second adjusting area is in the first adjusting area, the first adjusting area is at least partially overlapped with the second adjusting area, and part of the second adjusting area is in the first adjusting area or the second adjusting area is completely in the first adjusting area; secondly, when the position of the touch point is not in the first adjusting area, the visual direction of the user is not perpendicular to the display screen, and the visual range of the user is close to the visual direction of the user relative to the touch point. According to the invention, the visual direction of the user is determined through the position of the touch point and the position of the first adjusting area, so that the second adjusting area which is deviated to the first adjusting area is determined, the position and the range of the second adjusting area are more accurately positioned, the visual range of a short-distance operation user is met, the visual feeling of the short-distance operation user is maximally protected, and the watching experience of a long-distance viewer is not influenced.
Further, when the position of the touch point is not within the first adjustment area, the second adjustment area is shifted toward the first adjustment area relative to the position of the touch point, and at this time, the second adjustment area and the first adjustment area are in an overlapping or non-overlapping relationship.
Further, the adjusting the brightness of the first adjustment area and the second adjustment area specifically includes:
acquiring the ambient light brightness, the current brightness of the first adjusting area and the current brightness of the second adjusting area;
when the first adjusting area is overlapped with the second adjusting area, taking the first adjusting area and the second adjusting area as an integral adjusting area, acquiring the current brightness of the integral adjusting area, and adjusting the brightness of the integral adjusting area according to the ratio of the current brightness of the integral adjusting area to the ambient light brightness;
when the first adjusting area is not overlapped with the second adjusting area, judging whether the current brightness of the first adjusting area is larger than a first preset brightness threshold value or not, if so, reducing the current brightness of the first adjusting area, and if not, not adjusting the current brightness of the first adjusting area; and adjusting the brightness of the second adjusting area according to the ratio of the current brightness of the second adjusting area to the ambient light brightness.
Further, when the first adjusting area is overlapped with the second adjusting area, whether the ratio of the current brightness of the overall adjusting area to the ambient light brightness is larger than a second preset brightness threshold value or not is judged, if yes, the current brightness of the overall adjusting area is reduced, and if not, the current brightness of the overall adjusting area is not adjusted; when the first adjusting area and the second adjusting area are not overlapped, judging whether the ratio of the current brightness of the second adjusting area to the ambient light brightness is larger than a second preset brightness threshold value or not, if so, reducing the current brightness of the second adjusting area, and if not, not adjusting the current brightness of the second adjusting area.
The second adjusting area is mainly set by depending on the position of a touch point, and the position of the touch point is a human eye fixed point position, so that the brightness of the second adjusting area needs to be combined with the ambient light brightness in the process of adjusting the brightness. When the position of the touch point is in the first adjusting area, the second adjusting area is at least partially overlapped with the first adjusting area, and the ambient light brightness needs to be considered in the adjusting methods of the first adjusting area and the second adjusting area; when the position of the touch point is not in the first adjusting area, and the second adjusting area is shifted towards the first adjusting area relative to the position of the touch point, the first adjusting area and the second adjusting area are in an overlapping or non-overlapping relationship, when the first adjusting area and the second adjusting area are in an overlapping relationship, the environmental light brightness is required to be considered in the adjusting methods of the first adjusting area and the second adjusting area, when the first adjusting area and the second adjusting area are in a non-overlapping relationship, the environmental light brightness is not required to be considered in the first adjusting area, and the environmental light brightness is required to be considered in the second adjusting area.
Therefore, when the first adjustment area overlaps the second adjustment area, the first adjustment area and the second adjustment area are used as the whole adjustment area to perform uniform brightness adjustment processing, so that the brightness adjustment consistency of the first adjustment area and the second adjustment area is ensured, and the uniformity of brightness transition in the adjustment area is ensured, wherein the specific adjustment method comprises the following steps: taking the first adjusting area and the second adjusting area as an integral adjusting area and acquiring the current brightness of the integral adjusting area; calculating the ratio of the current brightness of the whole adjusting area to the ambient light brightness; judging whether the ratio of the current brightness of the overall adjusting area to the ambient light brightness is larger than a second preset brightness threshold value or not, if so, reducing the current brightness of the overall adjusting area, namely the first adjusting area and the second adjusting area, and if the ratio of the current brightness of the overall adjusting area to the ambient light brightness is smaller than or equal to the second preset brightness threshold value, not adjusting the current brightness of the overall adjusting area.
When the first adjustment area is not overlapped with the second adjustment area, the adjustment methods of the first adjustment area and the second adjustment area are different, and the specific adjustment method comprises the following steps: obtaining the ambient light brightness, the current brightness of the first adjusting area and the current brightness of the second adjusting area; judging whether the current brightness of the first adjusting area is larger than a first preset brightness threshold value or not, if so, reducing the current brightness of the first adjusting area, and if not, not adjusting the current brightness of the first adjusting area; calculating the ratio of the current brightness of the second adjusting area to the ambient light brightness, then judging whether the ratio of the current brightness of the second adjusting area to the ambient light brightness is larger than a second preset brightness threshold, if the ratio of the current brightness of the second adjusting area to the ambient light brightness is larger than the second preset brightness threshold, reducing the current brightness of the second adjusting area, and if the ratio of the current brightness of the second adjusting area to the ambient light brightness is smaller than or equal to the second preset brightness threshold, not adjusting the current brightness of the second adjusting area.
Further, the acquiring the face position of the user comprises: and positioning the user within the distance range of the close-distance operation display screen by adopting the camera, and acquiring the face position information of the user.
Before the brightness of a first adjusting area and a second adjusting area of a display screen is adjusted, whether a short-distance operation user performs operation processing on the display screen is judged, the short-distance operation user is positioned by a camera at first, when the distance between the user and the display screen is within a certain preset distance range, the short-distance operation user can be judged to perform operation processing on the display screen, at the moment, face position information of the user is obtained through the camera, the first adjusting area is determined by the face position information, the brightness of the first adjusting area is adjusted, when the distance between the user and the display screen is far away from the certain preset distance, the display screen can be judged to have no short-distance operation user, and at the moment, the display screen does not perform local area brightness adjustment processing.
Another technical solution adopted by the present invention is a local brightness adjustment system, comprising:
the first adjusting area determining module is used for acquiring face position information of a user and determining a first adjusting area of the display screen according to the face position information;
the second adjusting area determining module is used for acquiring a touch point position of a user for performing touch operation on a display screen, and determining a second adjusting area according to the touch point position and the first adjusting area position, wherein when the touch point position falls in the first adjusting area, the second adjusting area is at least partially overlapped with the first adjusting area, or when the touch point position does not fall in the first adjusting area, a central point of the second adjusting area deviates towards the first adjusting area relative to the touch point position;
and the brightness adjusting module is used for adjusting the brightness of the first adjusting area and the second adjusting area.
The invention relates to a local brightness adjusting system, which performs self-adaptive brightness adjustment on a local area based on the angle of a near distance operation user on a touch display screen, meets the visual experience of a viewer and improves the operation experience of the near distance operation user, and the system specifically comprises: firstly, acquiring a face position of a user through a first adjusting region determining module, and determining a display region corresponding to the face position on a display screen as a first adjusting region according to the face position of the user; secondly, acquiring a touch point position of a user when the user performs touch operation on the display screen through a second adjusting area determining module, and determining a second adjusting area according to the touch point position and the position of the first adjusting area, wherein the second adjusting area is formed according to the relative position relation between the touch point position and the position of the first adjusting area, and the second adjusting area is at least partially overlapped with the first adjusting area when the touch point position is in the first adjusting area or is deviated towards the first adjusting area relative to the touch point position when the touch point position is not in the first adjusting area; and finally, adjusting the brightness of the first adjusting area and the second adjusting area respectively through a brightness adjusting module.
According to the local brightness adjusting system, the brightness of the first adjusting area and the brightness of the second adjusting area are adjusted in a self-adaptive mode through the first adjusting area determining module and the second adjusting area determining module, the visual experience of a user operating in a close range is considered, and the brightness display effect of a display screen is met; the position of the touch point is combined with the position of the first adjusting area to form a second adjusting area which is deviated to the first adjusting area, namely, the second adjusting area which is deviated to the face position of the user relative to the position of the touch point is formed, the ingenious design of the second adjusting area meets the visual experience of the short-distance operation user, and the display effect of a long-distance viewer is not influenced.
Further, the second adjustment region determining module specifically includes:
if the position of the touch point is in the first adjusting area, determining a display area in a preset range as a second adjusting area by taking the position of the touch point as a central point, wherein the second adjusting area is at least partially overlapped with the first adjusting area;
if the position of the touch point does not fall in the first adjusting area, determining a display area in a preset range as a second adjusting area according to the position of the touch point, and enabling the center point of the second adjusting area to deviate from the first adjusting area relative to the position of the touch point.
The second adjustment area determination module further defines a second adjustment area according to an actual touch condition in combination with a visual relationship of an operation user, and specifically includes two conditions, wherein when a touch point position is within a first adjustment area, that is, the touch point is perpendicular to a visual direction of the user on a display screen, a visual range of the user takes the touch point position as a center point, a display area within a preset range is determined as the second adjustment area, at least a part of the second adjustment area is within the first adjustment area, the first adjustment area is at least partially overlapped with the second adjustment area, and a part of the second adjustment area is within the first adjustment area or all of the second adjustment area is within the first adjustment area; secondly, when the position of the touch point is not in the first adjusting area, the visual direction of the user is not perpendicular to the display screen, and the visual range of the user is close to the visual direction of the user relative to the touch point. According to the invention, the second adjusting area determining module determines the visual direction of the user according to the position of the touch point and the position of the first adjusting area, so that the second adjusting area deviated from the first adjusting area is determined, the position and the range of the second adjusting area are more accurately positioned, the visual feeling of a short-distance operation user is protected to the maximum extent, and the watching experience of a long-distance viewer is not influenced.
Another technical solution adopted by the present invention is a computer-readable storage medium, in which a computer program is stored, and the computer program is configured to execute the local brightness adjustment method when running.
Another technical solution adopted by the present invention is an electronic device, including a memory and a processor, where the memory stores a computer program, and the processor is configured to run the computer program to execute the local brightness adjustment method.
Compared with the prior art, the invention has the following beneficial effects: according to the local brightness adjusting method, the local brightness adjusting system, the storage medium and the electronic equipment, the first adjusting area of the display screen is determined through the face position, the second adjusting area of the display screen is determined through the relative position relation between the touch point position and the first adjusting area, and then the brightness of the first adjusting area and the brightness of the second adjusting area are adjusted in a self-adaptive mode, so that the visual experience of a short-distance operation user is considered, and the brightness display effect of the display screen is met; according to the invention, the visual direction of the user is determined through the position relation between the touch point position and the first adjusting area, the second adjusting area which is deviated to the first adjusting area can be further determined, the position and the range of the second adjusting area can be more accurately positioned, the visual experience of a short-distance operation user is met, the visual experience of the short-distance operation user is maximally protected, and the viewing experience of a long-distance viewer is not influenced.
Drawings
Fig. 1 is a schematic flow chart of a local brightness adjusting method according to the present invention.
Fig. 2 is a schematic diagram of a second adjustment area with touch points falling within the first adjustment area according to the present invention.
Fig. 3 is a schematic diagram of a second adjustment area where the touch point does not fall within the first adjustment area according to the present invention.
Fig. 4 is a schematic structural diagram of a local brightness adjustment system according to the present invention.
Detailed Description
The drawings are only for purposes of illustration and are not to be construed as limiting the invention. For a better understanding of the following embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The existing touch display screen has contradiction between short-distance operation and long-distance viewing in various interactive contextual application modes, under the same backlight brightness, a viewing user far away from the display screen needs higher brightness to clearly view the content of the display screen, but a near-distance operating user feels very dazzling, if the short-distance operating user is protected by reducing the brightness of the full screen, the display effect of the display screen is influenced, and the excellent visual effect brought by high brightness and high contrast cannot be displayed.
Fig. 1 shows a local brightness adjustment method according to this embodiment, which includes the following steps:
step S1, obtaining face position information of a user, and determining a first adjusting area of a display screen according to the face position information;
specifically, the acquiring the face position information of the user includes: and positioning the user within the distance range of the close-range operation display screen by adopting the camera, and acquiring the face position information of the user.
Firstly, a distance detection device can be adopted to judge the relative position of a short-distance operation user and a large screen, and when the relative position of the user and a display screen is smaller than or equal to a preset distance, the user can be accurately judged to be facing to the large screen operation, and the distance detection device in the embodiment can be a camera; secondly, acquiring face position information of a user by using a camera, and determining a first adjusting area corresponding to the face position information on a display screen according to the face position information, wherein the face position information comprises a face position and a face size, the face position can be determined by positioning a face, and the face size can be acquired through actual image acquisition of the camera or can be determined through a display area within a certain range which is preset by taking the face position as a center.
Step S2, acquiring a touch point position of a user for performing touch operation on a display screen, and determining a second adjusting area according to the touch point position and the first adjusting area, wherein when the touch point position falls within the first adjusting area, the second adjusting area is at least partially overlapped with the first adjusting area, or when the touch point position does not fall within the first adjusting area, the second adjusting area is shifted towards the first adjusting area relative to the touch point position;
specifically, in step S2, when the touch point position falls within the first adjustment region, the second adjustment region at least partially overlaps with the first adjustment region, or when the touch point position does not fall within the first adjustment region, the second adjustment region shifts toward the first adjustment region relative to the touch point position, which specifically includes:
if the position of the touch point is in the first adjusting area, determining a display area in a preset range as a second adjusting area by taking the position of the touch point as a central point, wherein the second adjusting area is at least partially overlapped with the first adjusting area;
if the position of the touch point does not fall into the first adjusting area, determining a display area in a preset range as a second adjusting area according to the position of the touch point, and enabling the center point of the second adjusting area to deviate from the first adjusting area relative to the position of the touch point.
The touch control position of the touch control operation of the user on the display screen is obtained, the user can touch the screen through fingers, or touch the screen through other tools such as a touch control writing pen, and the display screen can detect the touch control operation of the user and determine the position information of the touch control position.
Wherein, can confirm two kinds of different second regulation regions through judging the relative position relation of touch point position and first regulation region, specifically do:
as shown in fig. 2, if the position of the touch point is within the first adjustment area, that is, the visual direction of the user operating in a close range is perpendicular to the display screen, and the visual range of the user is within the range of the human face size, so the center point of the visual range of the user is the touch point, and further the display area within the preset range is determined as the second adjustment area by taking the touch point as the center, and the preset range can be preset according to the use habit of the user, specifically, in this embodiment, after the touch point is determined, a rectangular area within the preset range is selected as the second adjustment area, at least a part of the second adjustment area is within the first adjustment area, and the second adjustment area and the first adjustment area are in an at least partially overlapped position relationship, where the circle shown in fig. 2 and 3 is the first adjustment area, the rectangle is the second adjustment area, and the first adjustment area and the second adjustment area can be other figures such as a circle, an ellipse, or a triangle, the circles and rectangles in this embodiment are merely used for identification, the shapes and sizes of the first adjustment region and the second adjustment region are not limited, and the relative sizes of the first adjustment region and the second adjustment region are not specifically limited.
As shown in fig. 3, if the position of the touch point is not within the first adjustment area, that is, the visual direction of the user is not perpendicular to the display screen during the short-distance operation, the visual range of the user exceeds the size range of the human face, and there is a certain included angle between the visual direction of the user and the display screen, at this time, the second adjustment area is determined according to the relative position relationship between the position of the touch point and the first adjustment area, specifically, in this embodiment, after the position of the touch point is determined, the position of the center point of the second adjustment area is determined by using the position of the touch point, the position of the center point of the second adjustment area is shifted toward the first adjustment area compared with the position of the touch point, after the position of the center point is determined, the second adjustment area within the preset range can be defined by using the center point, the position of the touch point is located within the second adjustment area, and the center point of the second adjustment area is shifted toward the first adjustment area relative to the position of the touch point, the distance between the center point of the second adjustment area and the first adjustment area is smaller than the distance between the touch point position and the first adjustment area, for example, when the short-distance operation user is located on the left side (or right side) of the display screen, the touch operation is performed on the right side (or left side) of the display screen, the center point of the second adjustment area is offset to the left side (or right side) relative to the touch point position, and the distance between the center point of the second adjustment area and the first adjustment area is smaller than the distance between the touch point position and the first adjustment area, the second adjustment area in this embodiment is offset to the short-distance operation user side, so as to overcome the problem that when both the short-distance operation user and the long-distance viewer need to watch the information in the display area with the touch point position as the center point, the brightness of the display area is reduced, which meets the visual experience of the short-distance operation user but contradicts the high-brightness visual experience of the long-distance viewer, for example, when a teacher explains, the teacher uses the teaching stick to teach the position on the tablet, which is intended to let the student pay attention to the area information of the position, and as a result, the second adjustment area centered on the touch point is determined through the touch point, and the brightness of the second adjustment area is reduced, which has a bad effect on the contrary. The preset distance range of the second adjustment area may be preset by using habits of a user, the preset distance range of the second adjustment area may also be an arm size range when the user performs touch interaction, or the shape of the second adjustment area may also be a circle, a triangle, or the like, which is not limited herein.
And step S3, adjusting the brightness of the first adjusting area and the second adjusting area.
Specifically, when the position of the touch point is not within the first adjustment area, the second adjustment area is shifted toward the first adjustment area relative to the position of the touch point, and at this time, the second adjustment area and the first adjustment area are in an overlapping or non-overlapping relationship.
Specifically, the step S3 specifically includes:
acquiring the ambient light brightness, the current brightness of the first adjusting area and the current brightness of the second adjusting area;
when the first adjusting area is overlapped with the second adjusting area, taking the first adjusting area and the second adjusting area as an integral adjusting area, acquiring the current brightness of the integral adjusting area, and adjusting the brightness of the integral adjusting area according to the ratio of the current brightness of the integral adjusting area to the ambient light brightness;
when the first adjusting area is not overlapped with the second adjusting area, judging whether the current brightness of the first adjusting area is larger than a first preset brightness threshold value or not, if so, reducing the current brightness of the first adjusting area, and if not, not adjusting the current brightness of the first adjusting area; and adjusting the brightness of the second adjusting area according to a second ratio of the current brightness of the second adjusting area to the ambient light brightness.
Specifically, when the first adjustment area overlaps the second adjustment area, whether the ratio of the current brightness of the overall adjustment area to the ambient light brightness is greater than a second preset brightness threshold is judged, if yes, the current brightness of the overall adjustment area is reduced, and if not, the current brightness of the overall adjustment area is not adjusted; when the first adjusting area and the second adjusting area are not overlapped, judging whether the ratio of the current brightness of the second adjusting area to the ambient light brightness is larger than a second preset brightness threshold value or not, if so, reducing the current brightness of the second adjusting area, and if not, not adjusting the current brightness of the second adjusting area.
As shown in fig. 2, when the position of the touch point is within the first adjustment area, the second adjustment area is at least partially overlapped with the first adjustment area; as shown in fig. 3, when the touch point position does not fall within the first adjustment area, the second adjustment area is shifted toward the first adjustment area relative to the touch point position, at this time, the first adjustment area and the second adjustment area are in a partially overlapped or non-overlapped relationship, and fig. 3 only shows the non-overlapped relationship between the first adjustment area and the second adjustment area.
Therefore, when the first adjustment region and the second adjustment region are determined to be in an overlapping relationship, the first adjustment region and the second adjustment region are used as the whole adjustment region to perform brightness adjustment processing, and the specific adjustment method is as follows: obtaining the brightness of the environment and the current brightness of the whole adjusting area; calculating the ratio of the current brightness of the whole adjusting area to the ambient light brightness; judging whether the ratio of the current brightness of the overall adjusting area to the ambient light brightness is larger than a second preset brightness threshold value or not to correspondingly adjust the brightness of the first adjusting area and the second adjusting area, when the ratio of the current brightness of the overall adjusting area to the ambient light brightness is larger than the second preset brightness threshold value, reducing the current brightness of the overall adjusting area, namely the first adjusting area and the second adjusting area, and when the ratio of the current brightness of the overall adjusting area to the ambient light brightness is smaller than or equal to the second preset brightness threshold value, not adjusting the current brightness of the first adjusting area and the second adjusting area. The second preset brightness threshold value may be specifically set according to an actual experiment debugging situation, and when the current brightness of the first adjustment area and the second adjustment area is low or the ambient light brightness is high, that is, the first ratio and the second ratio are lower than the second preset brightness threshold value, the brightness of the first adjustment area and the second adjustment area is not adjusted, but in order to ensure readability brightness of the first adjustment area and the second adjustment area, the second preset brightness threshold value is not less than 10.
When the first adjustment area and the second adjustment area are judged to be in a non-overlapping relationship, the local brightness adjustment methods of the first adjustment area and the second adjustment area are different, specifically: acquiring the current brightness of the first adjusting area, the ambient light brightness and the current brightness of the second adjusting area; correspondingly adjusting the brightness of the first adjusting area by judging whether the current brightness of the first adjusting area is greater than a first preset brightness threshold, reducing the current brightness of the first adjusting area when the current brightness of the first adjusting area is greater than the first preset brightness threshold, and not adjusting the current brightness of the first adjusting area when the current brightness of the first adjusting area is less than or equal to the first preset brightness threshold, wherein the first preset brightness threshold can be specifically set according to experimental condition conditions, and in order to ensure the readability brightness of the first adjusting area, the first preset brightness threshold is not less than 20 nit; and calculating the ratio of the current brightness of the second adjusting area to the ambient light brightness, correspondingly adjusting the brightness of the second adjusting area by judging whether the ratio of the current brightness of the second adjusting area to the ambient light brightness is greater than a second preset brightness threshold, reducing the current brightness of the second adjusting area when the ratio of the current brightness of the second adjusting area to the ambient light brightness is greater than the second preset brightness threshold, not adjusting the current brightness of the second adjusting area when the ratio of the current brightness of the second adjusting area to the ambient light brightness is less than or equal to the second preset brightness threshold, and ensuring that the readability brightness of the second adjusting area is not less than 10.
In addition, when the relative position of the user and the display screen is detected to be larger than the preset distance, the fact that the user does not perform close-range operation on the large screen at the moment is judged, and the process of adjusting the brightness of the first adjusting area and the second adjusting area does not exist in the display screen; or when the judgment that the user performs short-distance operation on the large screen, after the brightness of the first adjusting area and the second adjusting area is adaptively adjusted, the display screen can detect the relative position of the user and the display screen in real time, and when the relative position is detected to be greater than the preset distance, the brightness of the first adjusting area and the second adjusting area is recovered to be the same as that of other areas, so that the watching experience of a long-distance viewer is ensured; besides, the embodiment can also set that only the short-distance operators exist, and can realize the reduction of the backlight brightness of the full screen under the situation that no long-distance viewer exists in a certain distance threshold range, thereby reducing the energy consumption and meeting the environmental protection requirement while providing good experience for the short-distance operators.
The embodiment of the invention is mainly applied to products such as Mini LED backlight/Micro LED and the like, the products can roughly judge the brightness of the current area through the luminous body current of the corresponding area, and the prior art is not described in detail herein.
In another embodiment of the present invention, as shown in fig. 4, a local brightness adjustment system in this embodiment includes:
the first adjusting area determining module 100 is configured to acquire a face position of a user, and determine a first adjusting area of a display screen according to the face position;
specifically, the acquiring the face position information of the user includes: and positioning the user within the distance range of the display screen by adopting the camera, and acquiring the face position information of the user.
A second adjustment area determining module 200, configured to obtain a touch point position of a user performing a touch operation on a display screen, and determine a second adjustment area according to the touch point position and the first adjustment area position, where when the touch point falls within a first adjustment area, the second adjustment area at least partially overlaps with the first adjustment area, or when the touch point position does not fall within the first adjustment area, the second adjustment area shifts toward the first adjustment area relative to the touch point position;
the second adjustment area determining module 200 specifically includes:
if the position of the touch point is in the first adjusting area, determining a display area in a preset range as a second adjusting area by taking the position of the touch point as a central point, wherein the second adjusting area is at least partially overlapped with the first adjusting area;
if the position of the touch point does not fall into the first adjusting area, determining a display area in a preset range as a second adjusting area according to the position of the touch point, and enabling the center point of the second adjusting area to deviate from the first adjusting area relative to the position of the touch point.
A brightness adjusting module 300 for adjusting brightness of the first adjusting region and the second adjusting region.
Specifically, when the position of the touch point is not within the first adjustment area, the second adjustment area is shifted toward the first adjustment area relative to the position of the touch point, and at this time, the second adjustment area and the first adjustment area are in an overlapping or non-overlapping relationship.
Specifically, the brightness adjusting module 300 specifically includes:
obtaining the ambient light brightness, the current brightness of the first adjusting area and the current brightness of the second adjusting area;
when the first adjusting area is overlapped with the second adjusting area, taking the first adjusting area and the second adjusting area as an integral adjusting area, acquiring the current brightness of the integral adjusting area, and adjusting the brightness of the integral adjusting area according to the ratio of the current brightness of the integral adjusting area to the ambient light brightness;
when the first adjusting area is not overlapped with the second adjusting area, judging whether the current brightness of the first adjusting area is larger than a first preset brightness threshold value or not, if so, reducing the current brightness of the first adjusting area, and if not, not adjusting the current brightness of the first adjusting area; and adjusting the brightness of the second adjusting area according to a second ratio of the current brightness of the second adjusting area to the ambient light brightness.
Specifically, when the first adjustment area overlaps the second adjustment area, determining whether a ratio of the current brightness of the overall adjustment area to the ambient light brightness is greater than a second preset brightness threshold, if so, reducing the current brightness of the overall adjustment area, and if not, not adjusting the current brightness of the overall adjustment area; when the first adjusting area is not overlapped with the second adjusting area, judging whether the ratio of the current brightness of the second adjusting area to the ambient light brightness is larger than a second preset brightness threshold value, if so, reducing the current brightness of the second adjusting area, and if not, not adjusting the current brightness of the second adjusting area.
In a further embodiment, the present invention provides a computer-readable storage medium, in which a computer program is stored, the computer program being configured to execute the local brightness adjustment method when the computer program runs.
In yet another embodiment of the present invention, an electronic device includes a memory and a processor, the memory stores a computer program, and the processor is configured to execute the computer program to perform the local brightness adjustment method.
The embodiment of the invention has the beneficial effects that: the embodiment of the invention provides a local brightness adjusting method, a local brightness adjusting system, a storage medium and electronic equipment thereof.A first adjusting area of a display screen is determined through a face position, the first adjusting area of the display screen is determined through the face position, and a second adjusting area of the display screen is determined through a touch point position and the position of the first adjusting area, so that the brightness of the first adjusting area and the brightness of the second adjusting area are adjusted in a self-adaptive manner, the visual experience of a short-distance operation user is considered, and the brightness display effect of the display screen is met; according to the invention, the visual direction of the user is determined through the position of the touch point and the position of the first adjusting area, so that the second adjusting area deviated from the first adjusting area is determined, the position and the range of the second adjusting area are more accurately positioned, the visual experience of a short-distance operation user is met, the visual experience of the short-distance operation user is maximally protected, and the viewing experience of a long-distance viewer is not influenced.
It should be understood that the above-mentioned embodiments of the present invention are only examples for clearly illustrating the technical solutions of the present invention, and are not intended to limit the specific embodiments of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention claims should be included in the protection scope of the present invention claims.
Claims (10)
1. A local brightness adjustment method, comprising:
the method comprises the steps of obtaining face position information of a user, and determining a first adjusting area of a display screen according to the face position information;
acquiring a touch point position of a user for performing touch operation on a display screen, and determining a second adjusting area according to the touch point position and the first adjusting area position, wherein when the touch point position falls in the first adjusting area, the second adjusting area is at least partially overlapped with the first adjusting area, or when the touch point position does not fall in the first adjusting area, the second adjusting area is shifted towards the first adjusting area relative to the touch point position;
adjusting the brightness of the first and second adjustment regions.
2. The method according to claim 1, wherein when the touch point position falls within a first adjustment region, the second adjustment region at least partially overlaps the first adjustment region, or when the touch point position does not fall within the first adjustment region, the second adjustment region is shifted toward the first adjustment region relative to the touch point position, specifically comprising:
if the position of the touch point is in the first adjusting area, determining a display area in a preset range as a second adjusting area by taking the position of the touch point as a central point, wherein the second adjusting area is at least partially overlapped with the first adjusting area;
if the position of the touch point does not fall into the first adjusting area, determining a display area in a preset range as a second adjusting area according to the position of the touch point, and enabling the center point of the second adjusting area to deviate from the first adjusting area relative to the position of the touch point.
3. The method as claimed in claim 1, wherein when the position of the touch point does not fall within a first adjustment region, the second adjustment region is shifted toward the first adjustment region relative to the position of the touch point, and at this time, the second adjustment region and the first adjustment region are in an overlapping or non-overlapping relationship.
4. The local brightness adjustment method according to claim 3, wherein the adjusting the brightness of the first adjustment region and the second adjustment region specifically comprises:
obtaining the ambient light brightness, the current brightness of the first adjusting area and the current brightness of the second adjusting area;
when the first adjusting area is overlapped with the second adjusting area, taking the first adjusting area and the second adjusting area as an integral adjusting area, acquiring the current brightness of the integral adjusting area, and adjusting the brightness of the integral adjusting area according to the ratio of the current brightness of the integral adjusting area to the ambient light brightness;
when the first adjusting area and the second adjusting area are not overlapped, judging whether the current brightness of the first adjusting area is larger than a first preset brightness threshold value or not, if so, reducing the current brightness of the first adjusting area, otherwise, not adjusting the current brightness of the first adjusting area, and adjusting the brightness of the second adjusting area according to the ratio of the current brightness of the second adjusting area to the ambient light brightness.
5. The local brightness adjustment method of claim 4, wherein when the first adjustment area overlaps the second adjustment area, determining whether a ratio of the current brightness of the overall adjustment area to the ambient light brightness is greater than a second preset brightness threshold, if so, decreasing the current brightness of the overall adjustment area, and if not, not adjusting the current brightness of the overall adjustment area; when the first adjusting area and the second adjusting area are not overlapped, judging whether the ratio of the current brightness of the second adjusting area to the ambient light brightness is larger than a second preset brightness threshold value or not, if so, reducing the current brightness of the second adjusting area, and if not, not adjusting the current brightness of the second adjusting area.
6. The local brightness adjustment method of claim 1, wherein the obtaining the face position of the user comprises:
and positioning a user operating the display screen at a close distance by adopting the camera, and acquiring the face position information of the user.
7. A local brightness adjustment system, comprising:
the first adjusting area determining module is used for acquiring face position information of a user and determining a first adjusting area of the display screen according to the face position information;
the second adjusting area determining module is used for acquiring a touch point position of a user for performing touch operation on a display screen, and determining a second adjusting area according to the touch point position and the first adjusting area position, wherein when the touch point position falls in the first adjusting area, the second adjusting area is at least partially overlapped with the first adjusting area, or when the touch point position does not fall in the first adjusting area, the second adjusting area is shifted to the first adjusting area relative to the touch point position;
and the brightness adjusting module is used for adjusting the brightness of the first adjusting area and the second adjusting area.
8. The local brightness adjustment system according to claim 7, wherein the second adjustment region determining module specifically includes:
if the position of the touch point is in the first adjusting area, determining a display area in a preset range as a second adjusting area by taking the position of the touch point as a central point, wherein the second adjusting area is at least partially overlapped with the first adjusting area;
if the position of the touch point does not fall in the first adjusting area, determining a display area in a preset range as a second adjusting area according to the position of the touch point, and enabling the center point of the second adjusting area to deviate towards the first adjusting area relative to the position of the touch point.
9. A computer-readable storage medium, in which a computer program is stored which, when being executed, is arranged to carry out a method of local brightness adjustment according to any one of claims 1 to 6.
10. An electronic device, comprising a memory and a processor, wherein the memory stores a computer program, and the processor is configured to run the computer program to perform the local brightness adjustment method according to any one of claims 1-6.
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