TW202123207A - Method and system for dynamically adjusting brightness of display device - Google Patents

Abstract

The invention provides a method and a system for dynamically adjusting the brightness of a display device. The method includes the following steps. An image captured by a front camera of the display device is obtained. A position of a human eye and a position of a highlight area are detected from the image, and the highlight area is an area where the brightness in the image meets a preset brightness condition. A position of a reflective area in the screen is determined according to the position of the human eye and the position of the highlight in the image. A display brightness of the reflective area in the screen is increased.

Description

Method and system for dynamically adjusting brightness of display device

The present invention relates to the field of display technology, and in particular to a method and system for dynamically adjusting the brightness of a display device.

In the prior art, the screen brightness adjustment of the display device is mainly to detect the current environmental brightness to obtain the screen brightness adjustment value. The brightness adjustment value can be adjusted in a relatively smooth manner to reduce the discomfort to the user's eyes. .

However, the brightness adjustment method of the display device in the prior art is to adjust the overall brightness of the entire screen, and does not take into account that the lighting at different positions of the entire screen may be different, resulting in some areas of the screen that may not reach the desired level. The effect of brightness adjustment, and when the brightness of the entire screen is increased, the power consumption is relatively large, which reduces the battery life of the display device.

In view of the problems in the prior art, the purpose of the present invention is to provide a method and system for dynamically adjusting the brightness of a display device, which can determine the position of the reflective area of the screen by detecting the position of the human eye and the position of the highlight area, increase the brightness in the reflective area, and improve the display effect Reduce energy consumption.

The embodiment of the present invention provides a method for dynamically adjusting the brightness of a display device, which includes the following steps:

Acquiring an image taken by a front camera of the display device;

Detect the position of the human eye and the position of the highlight area from the image, where the highlight area is the area in the image whose brightness meets the preset brightness condition;

Determine the position of the reflective area on the screen according to the position of the human eye in the image and the position of the highlighted area;

Increase the display brightness of the reflective area on the screen.

Optionally, the preset brightness condition is that the brightness of the pixel is greater than a preset brightness threshold, or the difference between the brightness of the pixel and the average brightness of the image is greater than the preset difference threshold.

Optionally, detecting the position of the human eye and the position of the highlighted area from the image includes the following steps:

Detect the center coordinates of the left eye and the center of the right eye in the image;

Detect the coordinate range of the highlighted area in the image.

Optionally, determining the position of the reflective area on the screen according to the position of the human eye and the position of the highlighted area in the image includes the following steps:

Calculate the distance represented by each pixel in the image;

Obtain the distance represented by each pixel on the screen of the display device;

According to the distance represented by each pixel in the image and the distance represented by each pixel in the screen, the position of the human eye and the position of the highlight light source in the image are projected onto the screen to determine the position and position of the corresponding human eye on the screen. The location of the highlighted area;

Select the center area of the position of the human eye on the screen and the position of the highlight light source as the reflective area on the screen.

Optionally, calculating the distance represented by each pixel in the image includes the following steps:

Calculate the interpupillary distance r in the image according to the center coordinates of the left eye and the center of the right eye in the image;

Obtain the actual interpupillary distance R of the human eye, and calculate the distance d1 represented by each pixel in the image according to the actual interpupillary distance of the human eye and the interpupillary distance in the image, where d1=R/r.

Optionally, obtaining the distance represented by each pixel on the screen of the display device includes using the following formula to calculate the distance d2 represented by each pixel on the screen of the display device:

Among them, S represents the size of the screen, the unit is inches, Rh is the vertical resolution, and Rw is the horizontal resolution.

Optionally, determining the position of the corresponding human eye and the position of the highlighted area on the screen includes the following steps:

Select a human eye position point in the image, the coordinates are defined as (X11, Y11), project the human eye position point onto the screen, and calculate the coordinates (X12, Y12) of the human eye position point on the screen according to the following formula:

Among them, d1 is the distance represented by each pixel in the image, and d2 is the distance represented by each pixel on the screen of the display device;

Select a highlight area location point in the image, the coordinates are defined as (X21, Y21), the highlight area location point is projected onto the screen, and the coordinates of the highlight area location point in the screen are calculated according to the following formula (X22, Y22):

Determine the position of the corresponding human eye and the position of the highlight area on the screen according to the coordinates of the human eye position point on the screen and the coordinates of the highlight area position point.

Optionally, selecting the center of the position of the human eye on the screen and the position of the bright light source as the reflective area of the screen includes the following steps:

Each time you select a human eye position point on the screen, the coordinates are defined as (X12, Y12), and a highlight area position point on the screen is selected, and the coordinates are defined as (X22, Y22);

The following formula is used to calculate the coordinates (X3, Y3) of the reflective point of a screen according to the selected position point each time:

Determine the position of the reflective area on the screen based on the coordinates of multiple screen reflective points obtained through multiple calculations.

Optionally, selecting the human eye position point on the screen is the position point corresponding to the left eye center point or the right eye center point on the selection screen;

Selecting a point in the highlighted area on the screen is to sequentially select a point in the highlighted area on the screen.

Optionally, after determining the position of the reflective area on the screen according to the coordinates of multiple screen reflective points, the method further includes the following steps:

Determine whether the size of the reflective area of the screen is greater than the preset area size threshold;

If it is, the central area of the reflective area is selected as the updated reflective area according to the preset area size threshold.

Optionally, the method further includes the following steps:

Receive the user's selection of the position of the reflective area on the screen;

Increase the display brightness of the reflective area selected by the user on the screen.

The embodiment of the present invention also provides a system for dynamically adjusting the brightness of a display device, which is used to implement a method for dynamically adjusting the brightness of the display device.

The image acquisition module is used to acquire the image taken by the front camera of the display device;

The image detection module is used to detect the position of the human eye and the position of the highlight area from the image. The highlight area is the area where the brightness of the image meets the preset brightness condition;

The reflective area positioning module is used to determine the position of the reflective area on the screen according to the position of the human eye and the position of the highlighted area in the image;

The brightness adjustment module is used to increase the display brightness of the reflective area on the screen.

The method and system for dynamically adjusting the brightness of the display device provided by the present invention have the following advantages:

The present invention automatically detects the position of the human eye and the position of the highlight area, and automatically determines the position of the reflective area of the screen, and increases the brightness in the reflective area without adjusting the brightness of the entire screen as a whole, thereby improving the display effect and reducing energy consumption. Other non-reflective areas The brightness can be kept unchanged, so that the user's eyes will not be irritated due to excessive brightness, and the degree of damage to the eyes is reduced.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in various forms, and should not be construed as being limited to the examples set forth herein; on the contrary, these embodiments are provided so that the present disclosure will be more comprehensive and complete, and the concept of the example embodiments will be fully conveyed to Those skilled in the art. The described features, structures or characteristics can be combined in one or more embodiments in any suitable way.

In addition, the drawings are only schematic illustrations of the present disclosure, and are not necessarily drawn to scale. The same reference numerals in the figures denote the same or similar parts, and thus their repeated description will be omitted. Some of the block diagrams shown in the drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in the form of software, or implemented in one or more hardware modules or integrated circuits, or implemented in different networks and/or processor devices and/or microcontroller devices These functional entities.

As shown in Figure 1, in an embodiment of the present invention, the present invention provides a method for dynamically adjusting the brightness of a display device, which includes the following steps:

S100: Obtain an image taken by the front camera of the display device;

S200: Detect the position of the human eye and the position of the highlight area from the image, where the highlight area is an area in the image whose brightness meets a preset brightness condition;

S300: Determine the position of the reflective area on the screen according to the position of the human eye in the image and the position of the highlighted area;

S400: Improve the display brightness of the reflective area on the screen.

The brightness dynamic adjustment method of the present invention acquires the image in front of the screen through step S100, automatically detects the position of the human eye and the highlight area through step S200, and automatically determines the position of the reflective area of the screen through step S300, and then through step S400 in the reflective area Increase the brightness without adjusting the brightness of the entire screen as a whole, thereby improving the display effect and reducing energy consumption.

In this embodiment, the preset brightness condition is that the brightness of the pixel is greater than the preset brightness threshold, or the difference between the brightness of the pixel and the average brightness of the image is greater than the preset difference threshold. The highlighted area is the area where the bright light source (such as sunlight, light, etc.) is located. In other alternative embodiments, the preset brightness adjustment can also be set to other conditions. When a pixel meets the preset brightness condition, the pixel belongs to a high-brightness pixel, and multiple adjacent high-bright pixels can be The collection is a highlighted area. Specifically, when a large number of scattered high-brightness pixels are detected, it can be set that when the size of an area composed of a plurality of adjacent high-bright pixels meets the preset size requirement, the composed area is defined as a high-brightness area.

As shown in Figures 2 and 3, an embodiment of the present invention also provides a system for dynamically adjusting the brightness of a display device, which is used to implement the method for dynamically adjusting the brightness of the display device. The system includes:

The image acquisition module M100 is used to acquire images taken by the front camera of the display device;

The image detection module M200 is used to detect the position of the human eye and the position of the highlighted area from the image, where the highlighted area is an area in the image whose brightness meets a preset brightness condition;

The reflective area positioning module M300 is used to determine the position of the reflective area on the screen according to the position of the human eye in the image and the position of the highlighted area;

The brightness adjustment module M400 is used to increase the display brightness of the reflective area of the screen.

The brightness dynamic adjustment system of the present invention acquires the image in front of the screen through the image acquisition module M100, automatically detects the position of the human eye and the highlight area through the image detection module M200, and automatically determines the position through the reflective area positioning module M300 The position of the reflective area of the screen, and then the brightness adjustment module M400 is used to increase the brightness in the reflective area without adjusting the brightness of the entire screen as a whole, thereby improving the display effect and reducing energy consumption.

As shown in Figure 3, in this embodiment, in the step S300, detecting the position of the human eye and the position of the highlight region from the image includes the following steps:

The image detection module M200 detects the center coordinates of the left eye and the center of the right eye in the image. As shown in Figure 4, the face 12 is detected in the image 11, and the left eye center point and The center point of the right eye, where the center coordinates of the left eye and the center of the right eye are respectively marked as (X11 _L , Y11 _L ) and (X11 _R , Y11 _R );

The image detection module M200 detects the coordinate range of the highlighted area in the image. As shown in Figure 4, the highlighted area 13 is detected in the image 11, and the position of the upper left corner of the highlighted area 13 is set here. The coordinates of the point and the upper right corner position point are respectively marked as (X21 _L , Y21 _L ) and (X21 _R , Y21 _R ). In other implementations, the shape of the highlighted area may not be a rectangle, but also a triangle, circle, ellipse, rhombus, etc., and the coordinates of multiple positions at the border or vertex can be detected, or it can be detected. The multiple position coordinates scattered inside define the range of the highlighted area.

Further, the image detection module M200 can also detect the brightness value of the highlighted area, which is used as a reference when adjusting the brightness subsequently.

As shown in Figure 3, in this embodiment, in step S300, determining the position of the reflective area on the screen according to the position of the human eye in the image and the position of the highlighted area includes the following steps:

The reflective area positioning module M300 calculates the distance represented by each pixel in the image, and obtains the distance represented by each pixel in the screen of the display device; then according to the distance represented by each pixel in the image The distance and the distance represented by each pixel on the screen, map the position of the human eye and the position of the highlight light source in the image to the screen, and determine the position of the corresponding human eye and the position of the highlight area on the screen; Finally, the reflective area of the screen can be determined by the position of the human eye on the screen and the central area of the position of the highlight light source.

In this embodiment, the calculation of the distance represented by each pixel in the image includes the following steps:

計算得到。Calculate the interpupillary distance r in the image according to the center coordinates of the left eye and the center of the right eye in the image; specifically, according to the formula

Calculated.

Obtain the actual interpupillary distance R of the human eye, and calculate the distance d1 represented by each pixel in the image according to the actual interpupillary distance of the human eye and the interpupillary distance in the image, where d1=R/r. The actual interpupillary distance R of the human eye here can be a preset value pre-stored in the system, or it can store different values according to different users, or store different values according to the age of different users. The identification of the user's identity, the identification of the user's age, etc. to get the corresponding value.

In this embodiment, the obtaining the distance represented by each pixel on the screen of the display device includes calculating the distance d2 represented by each pixel on the screen of the display device by using the following formula:

Among them, S represents the size of the screen, the unit is inches, Rh is the vertical resolution, and Rw is the horizontal resolution. For example, a 31.5-inch display with 2K resolution has a dot pitch d2=0.2727mm. The distance d2 can also be a value pre-stored in the system, which is a fixed value for the screen of each display device and does not need to be recalculated.

Further, in this embodiment, the determining the position of the corresponding human eye and the position of the highlight area on the screen includes projecting the position of the human eye and the position of the highlight area in the image onto the screen. Specifically, as shown in Figure 5, the position of the human eye and the position of the highlight area are projected onto the screen, and the coordinates corresponding to the position of the human eye and the position of the highlight area on the screen after projection are calculated. In Figure 5, number 31 represents an actual human eye position point, which can be the center point of the left eye or the center point of the right eye, and number 32 represents an actual highlight area position point, which can be a boundary point in the highlight area. Or internal point, the number 26 indicates the center point of the screen. With the center point of the screen as the center of the circle, a two-dimensional coordinate system is established on the screen. The reference number 25 indicates the position of the reflective area location point determined based on the human eye location point 31 and the highlight area location point 32.

Specifically, calculating the coordinates of a human eye position point on the screen includes selecting a human eye position point in the image, the coordinates are defined as (X11, Y11), and the human eye position point is projected onto the screen, and calculated according to the following formula The coordinates (X12, Y12) of the human eye position point on the screen:

Among them, when calculating the coordinates of the human eye position on the screen, the above formula is used to sequentially calculate the coordinates of the center point of the left eye on the screen and the coordinates of the center point of the right eye on the screen.

Calculating the coordinates of the highlight area location point on the screen includes selecting a highlight area location point in the image, the coordinates are defined as (X21, Y21), and the highlight area location point is projected onto the screen, according to the following formula Calculate the coordinates (X22, Y22) of the highlighted area on the screen:

According to the coordinates of the human eye position point and the highlight area position point on the screen, the corresponding human eye position and the highlight area position on the screen are determined. The location point of the highlight area selected here is a location point in the highlight area. Use the above formula to calculate the coordinates of each highlight area location point on the screen, that is, the projection area of the entire highlight area on the screen can be obtained. .

In this embodiment, the selecting the center position of the position of the human eye and the position of the bright light source on the screen as the reflective area of the screen includes the following steps:

Each time a human eye position point on the screen is selected, the coordinates are defined as (X12, Y12), and a highlight area position point on the screen is selected, and the coordinates are defined as (X22, Y22);

The following formula is used to calculate the coordinates (X3, Y3) of the reflective point of a screen according to the selected position point each time:

The position of the reflective area on the screen is determined according to the coordinates of the reflective points of the multiple screens obtained by multiple calculations.

In this embodiment, selecting a position point of a human eye on the screen is selecting a position point corresponding to the center point of the left eye in the screen or selecting a position point corresponding to the center point of the right eye in the screen; A position point of a highlighted area on the screen is a position point for selecting the highlighted area on the screen in turn. Specifically, as shown in FIG. 6, on the screen 21, the face position point 22 includes a left eye center point (X12 _L , Y12 _L ) and a right eye center point (X12 _R , Y12 _R ). The highlight area 23 includes a plurality of highlight area position points, and only the upper left corner position point (X22 _L , Y22 _L ) and the upper right corner position point (X22 _R , Y22 _R ) are shown here. When calculating the coordinates of multiple reflective points (X3, Y3) in the reflective area 24 according to the above formula, the coordinates (X12, Y12) of a face position point (X12, Y12) (left eye center point or right eye center point coordinates) and one The coordinates (X22, Y22) (the boundary position, vertex position, or internal position in the highlight area) of the highlight area are calculated to obtain the coordinates (X3, Y3) of a reflective point. After multiple calculations, the number After the coordinates of the reflective points, a reflective area 24 can be formed according to multiple reflective points.

Further, after determining the position of the reflective area on the screen according to the coordinates of the multiple screen reflective points, the method further includes determining whether the size of the reflective area of the screen is greater than a preset area size threshold; if so, according to a preset The area size threshold selects the central area of the reflective area as the updated reflective area. That is, if the calculated size of the reflective area of the screen is too large, the reflective area is limited according to the preset area size threshold. Currently, the size threshold may not be set, and when the reflective area is larger, the brightness of a larger reflective area is increased.

In this embodiment, the display device is preferably an AMOLED (Active-matrix organic light-emitting diode) display device. When the brightness adjustment module M400 adjusts the brightness of the reflective area through the above step S400, the brightness of each pixel in the display device can be adjusted. In addition, the display device may also be a PMOLED (Passive matrix OLED, passive matrix organic light emitting diode) display device, and may also be scanned row by row in a row-column crossing manner to achieve different brightness. As shown in Figure 7, it is a schematic diagram of the structure of an OLED display panel. Wherein, reference numeral 41 represents a cathode, reference numeral 42 represents an OLED organic layer, reference numeral 43 represents an anode, and reference numeral 44 represents a substrate. This structure is only an example and is not a limitation of the protection scope of the present invention. As shown in Figure 8, it is a schematic diagram of the distribution of row electrodes and column electrodes in an OLED display device.

Taking the SSD1306 driver chip as an example, there are a total of 128 rows of anodes and 64 rows of cathodes, and each intersection is a pixel. When scanning line by line, the brightness is increased when the pixel points corresponding to the reflective area are encountered. The pixel control commands of the OLED display device are shown in Table 1 below, where command 1 is a brightness control command, and command 13/14 is a command to set the scan start row/column address.

Table 1 Pixel control instruction table Instruction category Command name Command code (H) Introduction to the role of instructions A basic instruction 1 Brightness control 81,A[7:0] Parameter A[] can set 256 levels of brightness 2 Full display switch A4/A5 A4 displays normally, A5 lights up all pixels 3 reverse white switch A6/A7 A6 displays normally, A7 displays in reverse video 4 display switch AE/AF AE closes the display, AF opens the display … Three address display 10 Starting column address is low 00~0F Two 4-bits are combined into a byte as a column indicator, and the column position of the displayed content is specified in page mode 11 Starting column address is high 10~1F 12 address mode 20,A[] 3 modes: page, horizontal, vertical 13 columns (start and end) addresses 21,A[],B[] In horizontal or vertical mode, specify the start and end address of the row and column to describe a continuous write storage area 14 pages (start and end) address 22,A[],B[] 15 page start address B0~B7 In page mode, specify the page to be written

In this embodiment, the method for dynamically adjusting the brightness of the display device further includes the following steps:

The user's selection of the position of the reflective area on the screen is received, and the display brightness of the reflective area selected by the user on the screen is improved. That is, when there is an error in the automatic brightness adjustment using the above steps S100 to S400, a marking tool such as a mouse can be used to mark the part that fails to enhance the brightness, which complements the automatic brightness adjustment.

The method, system, equipment and storage medium for dynamically adjusting the brightness of the display device provided by the present invention have the following advantages:

The present invention automatically detects the position of the human eye and the position of the highlight area, and automatically determines the position of the reflective area of the screen, and increases the brightness in the reflective area without adjusting the brightness of the entire screen as a whole, thereby improving the display effect and reducing energy consumption. Other non-reflective areas The brightness can be kept unchanged, so that the user's eyes will not be irritated due to excessive brightness, and the degree of damage to the eyes is reduced.

The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be considered that the specific implementation of the present invention is limited to these descriptions. For those of ordinary skill in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as belonging to the protection scope of the present invention.

11: Image 12: Human face 13: Highlight area 21: Screen 22: Face position point 23: Highlight area 24: Reflective area 25: Reflective area position point 26: Center point of the screen 31: Eye position point 32 : Highlight area position point 41: Cathode 42: OLED organic layer 43: Anode 44: Substrate r: Interpupillary distance M100: Image acquisition module M200: Image detection module M300: Reflective area positioning module M400: Brightness adjustment module Group S100, S200, S300, S400: Steps X11 _L , Y11 _L , X11 _R , Y11 _R , X12 _L , Y12 _L , X12 _R , Y12 _R , X21 _L , Y21 _L , X21 _R , Y21 _R , X22 _L , Y22 _L ,X22 _R ,Y22 _R ,,: coordinates

By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes and advantages of the present invention will become more apparent. FIG. 1 is a flowchart of a method for dynamically adjusting brightness of a display device according to an embodiment of the present invention; Figure 2 is a schematic structural diagram of a dynamic brightness adjustment system of a display device according to an embodiment of the present invention; FIG. 3 is a schematic diagram of each module performing each step in the brightness dynamic adjustment system of the display device according to an embodiment of the present invention; FIG. FIG. 4 is a schematic diagram of identifying the positions of the face area and the highlight area in the captured image according to an embodiment of the present invention; FIG. 5 is a schematic diagram of projecting the face position points and the highlight area position points to the screen according to an embodiment of the present invention; Figure 6 is a schematic diagram of determining the reflective area on the screen after projecting the position of the face and the highlight area on the screen according to an embodiment of the present invention; FIG. 7 is a schematic diagram of the hierarchical structure of an OLED display device according to an embodiment of the present invention; FIG. 8 is a schematic diagram of the distribution of row electrodes and column electrodes in an OLED display device according to an embodiment of the present invention.

S100, S200, S300, S400: steps

Claims (11)

A method for dynamically adjusting the brightness of a display device includes the following steps: Acquiring an image taken by a front camera of the display device; Detecting a position of a human eye and a position of a highlight area from the image, where the highlight area is an area in the image whose brightness meets a preset brightness condition; Determining the position of the reflective area on the screen according to the position of the human eye in the image and the position of the highlighted area; Improve the display brightness of the reflective area in the screen. The method for dynamically adjusting the brightness of a display device according to claim 1, wherein the preset brightness condition is that the brightness of the pixel is greater than a preset brightness threshold, or the difference between the brightness of the pixel and the average brightness value of the image Greater than the preset difference threshold. The method for dynamically adjusting the brightness of a display device according to claim 1, wherein the determining the position of the reflective area on the screen according to the position of the human eye in the image and the position of the highlight area includes the following steps: Calculating the distance represented by each pixel in the image; Acquiring the distance represented by each pixel on the screen of the display device; According to the distance represented by each pixel in the image and the distance represented by each pixel in the screen, project the position of the human eye and the position of the highlight light source in the image to the screen to determine the corresponding The position of the human eye and the position of the highlighted area; The central area of the position of the human eye on the screen and the position of the highlight light source is selected as the reflective area on the screen. The method for dynamically adjusting the brightness of a display device according to claim 3, wherein the calculating the distance represented by each pixel in the image includes the following steps: Calculating the interpupillary distance r in the image according to the center coordinates of the left eye and the center coordinates of the right eye in the image; The actual interpupillary distance R of the human eye is obtained, and the distance d1 represented by each pixel in the image is calculated according to the actual interpupillary distance of the human eye and the interpupillary distance in the image, where d1=R/r. The method for dynamically adjusting the brightness of a display device according to claim 3, wherein the obtaining the distance represented by each pixel on the screen of the display device includes calculating each pixel on the screen of the display device using the following formula The distance d2 represented by the point:

Among them, S represents the size of the screen, the unit is inches, Rh is the vertical resolution, and Rw is the horizontal resolution. The method for dynamically adjusting the brightness of a display device according to claim 3, wherein the determining the position of the corresponding human eye and the position of the highlight area on the screen includes the following steps: selecting a human eye position point in the image, The coordinates are defined as (X11, Y11), the human eye position point is projected onto the screen, and the coordinates (X12, Y12) of the human eye position point on the screen are calculated according to the following formula:

Wherein, d1 is the distance represented by each pixel in the image, and d2 is the distance represented by each pixel in the screen of the display device; select a highlight area location in the image, and the coordinates are defined as (X21, Y21), project the location point of the highlight area onto the screen, and calculate the coordinates (X22, Y22) of the location point of the highlight area on the screen according to the following formula:

According to the coordinates of the human eye position point and the highlight area position point on the screen, the corresponding human eye position and the highlight area position on the screen are determined. The method for dynamically adjusting the brightness of a display device according to claim 3, wherein the selecting the center of the position of the human eye and the position of the light source on the screen as the reflective area of the screen includes the following steps: A human eye position point on the screen, the coordinates are defined as (X12, Y12), and a highlight area position point in the screen is selected, and the coordinates are defined as (X22, Y22); the following formula is used to calculate one according to each selected position point The coordinates of the reflective point on the screen (X3, Y3):

The position of the reflective area on the screen is determined according to the coordinates of the reflective points of the multiple screens obtained by multiple calculations. The method for dynamically adjusting the brightness of a display device according to claim 7, wherein the selecting a position point of a human eye on the screen is selecting a position point corresponding to the center point of the left eye on the screen or selecting the right eye on the screen The location point corresponding to the center point; The selecting a position point of a highlighted area on the screen is to sequentially select a position point of the highlighted area on the screen. The method for dynamically adjusting the brightness of a display device according to claim 7, wherein, after the position of the reflective area on the screen is determined according to the coordinates of multiple screen reflective points, the method further includes the following steps: Judging whether the size of the reflective area of the screen is greater than a preset area size threshold; If it is, the central area of the reflective area is selected as the updated reflective area according to the preset area size threshold. The method for dynamically adjusting the brightness of a display device as described in claim 1, further includes the following steps: Receiving the user's selection of the position of the reflective area on the screen; Increase the display brightness of the reflective area selected by the user on the screen. A system for dynamically adjusting the brightness of a display device, which is used to implement the method for dynamically adjusting the brightness of a display device according to any one of claim items 1 to 10, and the system includes: The image acquisition module is used to acquire the image taken by the front camera of the display device; The image detection module is used to detect the position of the human eye and the position of the highlight area from the image, where the highlight area is an area in the image whose brightness meets a preset brightness condition; The reflective area positioning module is used to determine the position of the reflective area on the screen according to the position of the human eye in the image and the position of the highlighted area; The brightness adjustment module is used to increase the display brightness of the reflective area in the screen.

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