CN118212895A - Brightness adjustment method, brightness adjustment device, display device and computer-readable storage medium - Google Patents

Brightness adjustment method, brightness adjustment device, display device and computer-readable storage medium Download PDF

Info

Publication number
CN118212895A
CN118212895A CN202410317477.6A CN202410317477A CN118212895A CN 118212895 A CN118212895 A CN 118212895A CN 202410317477 A CN202410317477 A CN 202410317477A CN 118212895 A CN118212895 A CN 118212895A
Authority
CN
China
Prior art keywords
ambient light
brightness
display
current
light intensity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202410317477.6A
Other languages
Chinese (zh)
Inventor
朱健文
曾宪晖
朱嘉可
尹占江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Skyworth Display Technology Co ltd
Original Assignee
Shenzhen Skyworth Display Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Skyworth Display Technology Co ltd filed Critical Shenzhen Skyworth Display Technology Co ltd
Priority to CN202410317477.6A priority Critical patent/CN118212895A/en
Publication of CN118212895A publication Critical patent/CN118212895A/en
Pending legal-status Critical Current

Links

Landscapes

  • Controls And Circuits For Display Device (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

The application discloses a brightness adjusting method, a brightness adjusting device, display equipment and a computer readable storage medium, and belongs to the technical field of display. The brightness adjustment method is applied to a display device and comprises the following steps: collecting a reference ambient light increment of the display device by an illumination sensor; acquiring the current display brightness of the display equipment under the condition that the display equipment normally outputs a display picture; determining a current ambient light increment according to the current display brightness and the reference ambient light increment; collecting current ambient light intensity through the illumination sensor, and determining real ambient light intensity according to the current ambient light intensity and the current ambient light increment; and determining a target dimming parameter according to the real ambient light intensity and a preset numerical value corresponding table, and adjusting the brightness of the display equipment based on the target dimming parameter. The application optimizes the automatic brightness adjusting function of the display equipment and can avoid the influence of the brightness change of the screen on the automatic brightness adjusting effect.

Description

Brightness adjustment method, brightness adjustment device, display device and computer-readable storage medium
Technical Field
The present application relates to the field of display technologies, and in particular, to a brightness adjustment method, a brightness adjustment device, a display apparatus, and a computer readable storage medium.
Background
In order to meet the requirements of users in different environments, most display devices generally have the function of adjusting brightness, including manual brightness adjustment and automatic brightness adjustment, and the manual brightness adjustment is not convenient enough under most conditions due to the fact that the users are required to set the display devices by themselves, so that the use experience of the users can be remarkably improved by automatically adjusting the brightness relatively.
At present, the automatic adjustment of the screen brightness is often realized by the aid of a brightness sensor in the related art, but the actual effect of automatically adjusting the screen brightness based on the brightness sensor is not ideal along with the brightness change of the screen, and the mode still has a large technical defect.
Disclosure of Invention
The main purpose of the present application is to provide a brightness adjustment method, a device, a display device and a computer readable storage medium, which aim to optimize the automatic brightness adjustment function of the display device and avoid the influence of the brightness change of the screen on the automatic brightness adjustment effect.
In order to achieve the above object, the present application provides a brightness adjustment method applied to a display device, the brightness adjustment method comprising:
Collecting a reference ambient light increment of the display device by an illumination sensor;
Acquiring the current display brightness of the display equipment under the condition that the display equipment normally outputs a display picture;
determining a current ambient light increment according to the current display brightness and the reference ambient light increment;
collecting current ambient light intensity through the illumination sensor, and determining real ambient light intensity according to the current ambient light intensity and the current ambient light increment;
And determining a target dimming parameter according to the real ambient light intensity and a preset numerical value corresponding table, and adjusting the brightness of the display equipment based on the target dimming parameter.
Optionally, the step of collecting the reference ambient light increment of the display device by the illumination sensor includes:
Under the condition that the display equipment does not output a display picture, acquiring original ambient light intensity through the illumination sensor;
Acquiring reference ambient light intensity by the illumination sensor under the condition that the display device outputs a display picture based on reference display brightness;
and subtracting the original ambient light intensity from the reference ambient light intensity to obtain a difference value serving as a reference ambient light increment of the display device.
Optionally, the reference display brightness includes a maximum image brightness and a maximum backlight brightness, and the reference ambient light intensity includes a maximum ambient light intensity;
The step of acquiring the reference ambient light intensity by the illumination sensor in the case that the display device outputs a display screen based on the reference display luminance specifically includes:
And acquiring the maximum ambient light intensity by the illumination sensor under the condition that the display device outputs a display picture based on the maximum image brightness and the maximum backlight brightness.
Optionally, the current display brightness includes a current image brightness;
The step of determining the current ambient light increment according to the current display brightness and the reference ambient light increment specifically includes:
and determining the current ambient light increment according to the current image brightness and the reference ambient light increment.
Optionally, the current display brightness further includes a current backlight brightness;
The step of determining the current ambient light increment according to the current display brightness and the reference ambient light increment specifically includes:
And determining the current ambient light increment according to the current image brightness, the current backlight brightness and the reference ambient light increment.
Optionally, the display screen of the display device includes a plurality of display areas, and the current ambient light increment includes a sum of current ambient light increments of the respective display areas;
The step of determining the current ambient light increment according to the current display brightness and the reference ambient light increment specifically includes:
And determining the sum of the current ambient light increment of each display area according to the current display brightness of each display area and the reference ambient light increment of each display area.
Optionally, the preset value corresponding table includes a first value corresponding table and a second value corresponding table, where the first value corresponding table is a value corresponding table of ambient light intensity and backlight brightness, and the second value corresponding table is a value corresponding table of backlight brightness and dimming parameters;
the step of determining the target dimming parameter according to the real ambient light intensity and the preset numerical value corresponding table comprises the following steps:
generating a corresponding relation comprising ambient light intensity and dimming parameters based on the first numerical value corresponding table and the second numerical value corresponding table;
Substituting the real ambient light intensity into the corresponding relation to obtain a target dimming parameter.
In addition, in order to achieve the above object, the present application also provides a brightness adjustment device applied to a display apparatus, the brightness adjustment device comprising:
the acquisition module is used for acquiring the reference ambient light increment of the display equipment through the illumination sensor;
The acquisition module is used for acquiring the current display brightness of the display equipment under the condition that the display equipment normally outputs a display picture;
the processing module is used for determining the current ambient light increment according to the current display brightness and the reference ambient light increment;
The acquisition module is further used for acquiring current ambient light intensity through the illumination sensor, and the processing module is further used for determining real ambient light intensity according to the current ambient light intensity and the current ambient light increment;
The processing module is further used for determining a target dimming parameter according to the real environment light intensity and a preset numerical value corresponding table, and adjusting the brightness of the display device based on the target dimming parameter.
In addition, in order to achieve the above object, the present application also provides a display device including: a memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the brightness adjustment method as described above.
In addition, in order to achieve the above object, the present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the brightness adjustment method as described above.
The application provides a brightness adjusting method, a device, a display device and a computer readable storage medium, wherein in the brightness adjusting method, a reference ambient light increment of the display device is acquired through an illumination sensor, namely a reference object for determining the influence degree of screen luminescence on ambient light acquisition is determined; under the condition that the display equipment normally outputs a display picture, acquiring the current display brightness of the display equipment; then determining the current ambient light increment according to the current display brightness and the reference ambient light increment, namely determining the actual influence of the current screen luminescence of the display equipment on ambient light acquisition; then collecting the current ambient light intensity through an illumination sensor, and determining the real ambient light intensity according to the current ambient light intensity and the current ambient light increment, so as to obtain the pure ambient light intensity which is not influenced by screen illumination; and finally, determining a target dimming parameter according to the real ambient light intensity and a preset numerical value correspondence table, and adjusting the brightness of the display equipment based on the target dimming parameter, so that the influence of the brightness change of the screen on the automatic brightness adjustment effect can be avoided, and the defects in the related technology are overcome.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only a part of the embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic flow chart of a brightness adjusting method according to an embodiment of the present application;
Fig. 2 is a schematic system architecture diagram of a display device according to a brightness adjustment method according to an embodiment of the present application;
fig. 3 is a schematic front view of a display device according to a brightness adjustment method according to an embodiment of the present application;
Fig. 4 is a schematic view of an installation environment of a display device according to a brightness adjustment method according to an embodiment of the present application;
Fig. 5 is a schematic diagram of a correspondence relationship between ambient light intensity and screen backlight brightness according to a brightness adjustment method according to an embodiment of the present application;
Fig. 6 is a schematic diagram of a display screen partition and a display picture related to a brightness adjustment method according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of a brightness adjusting device according to an embodiment of the present application;
Fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth such as the particular system architecture, techniques, etc., in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that embodiments of the application may be practiced in other embodiments, which depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the embodiments of the present application with unnecessary detail.
It should be noted that although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different from that in the flowchart. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
It should also be appreciated that references to "one embodiment" or "some embodiments" or the like described in the specification of an embodiment of the present application mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more, but not all, embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
In order to meet the film watching requirements of users in different environments, most display devices generally have the function of adjusting brightness, including manual brightness adjustment and automatic brightness adjustment, and the manual brightness adjustment is not convenient enough under most conditions due to the fact that the users are required to set the display devices by themselves, so that the use experience of the users can be remarkably improved by automatically adjusting the brightness relatively.
Taking the television product as an example, the conventional television can only manually adjust the screen brightness. At night, if the viewing environment is dark, the viewer will feel dazzling and uncomfortable if the screen brightness is set higher. If the viewer reduces the screen brightness to a proper value at this time, and the viewer can feel the dim picture when watching television in daytime the next day, the viewer cannot see the screen picture clearly under the condition of stronger ambient light.
In order to overcome the defects in the above scenes, a novel television in the related art is provided with a brightness electronic sensor, ambient light brightness is acquired through television software, and screen brightness is adjusted in real time according to the acquired numerical variation, so that better user experience is achieved. However, although products have been on the market to realize the automatic screen brightness control function described above, the actual effect thereof is not ideal. The key reasons are as follows: the sensor cannot obtain an ideal, accurate ambient light value because the ambient light is "contaminated" by the screen lighting, which in turn has the following adverse effects: in the case of no change in the environment (no change in the ambient light), the screen brightness changes due to the change in brightness of the television picture, which results in distortion in the presentation of the image, for example, the screen brightness at a certain moment is reduced with a movie dark picture scene, which appears darker and has affected the accurate presentation of the movie.
Based on the above, the embodiments of the present application provide a brightness adjustment method, apparatus, display device, and computer readable storage medium, where in the brightness adjustment method, first, a reference ambient light increment of the display device is collected by an illumination sensor, that is, a reference object for determining the influence degree of screen lighting on ambient light collection is determined; under the condition that the display equipment normally outputs a display picture, acquiring the current display brightness of the display equipment; then determining the current ambient light increment according to the current display brightness and the reference ambient light increment, namely determining the actual influence of the current screen luminescence of the display equipment on ambient light acquisition; then collecting the current ambient light intensity through an illumination sensor, and determining the real ambient light intensity according to the current ambient light intensity and the current ambient light increment, so as to obtain the pure ambient light intensity which is not influenced by screen illumination; and finally, determining a target dimming parameter according to the real ambient light intensity and a preset numerical value correspondence table, and adjusting the brightness of the display equipment based on the target dimming parameter, so that the influence of the brightness change of the screen on the automatic brightness adjustment effect can be avoided, and the defects in the related technology are overcome.
The brightness adjustment method, the device, the display device and the computer readable storage medium provided by the embodiments of the present application are specifically described by the following embodiments, and the brightness adjustment method in the embodiments of the present application is first described.
Referring to fig. 1, fig. 1 is a schematic flow chart of a brightness adjustment method according to an embodiment of the present application, where the brightness adjustment method may be applied to a display device, as shown in fig. 1, and the brightness adjustment method according to the embodiment includes steps S10 to S50.
Step S10, acquiring a reference ambient light increment of the display equipment through an illumination sensor;
In this embodiment, the display device may include an electronic system as shown in fig. 2, including: 1) Display screen unit: the display device is used for outputting an image picture, and can comprise two subunits, namely an image display subunit and a screen back subunit, and one or more other subunits as long as the display device has an image display function and a screen back light function; 2) An image processing and output unit: the display screen unit is used for outputting image electronic data signals for display by the display screen unit, and is also provided with the capability of extracting image pictures in real time; 3) Illumination sensor unit: the method is used for acquiring illumination intensity information of the environment; 4) A processing control center unit: the processing center of the electronic system is responsible for data analysis and processing of the system, business logic general control and the like.
As an example, the display device in this embodiment may be a television set as shown in fig. 3, considering that the root cause of the fact that the illumination sensor cannot collect reliable ambient light values is that the ambient light is polluted by the screen light, when the display device is installed in the environment as shown in fig. 4, the environment where the display device is located is relatively fixed, at this time, the display screen light generates diffuse reflection on the surfaces of various things in the environment, and the influence of such diffuse reflection on the sensor collection reading is relatively fixed, so if the screen plays a fixed picture and no other light source changes, the ambient light intensity detected by the illumination sensor of the display device is stable, the ambient light intensity is recorded, and then compared with the ambient light intensity when the screen does not play the picture, so as to obtain the influence of the screen play picture on the ambient light collection, namely the reference ambient light increment.
In some possible embodiments, the step S10 may include:
Step S101, under the condition that the display equipment does not output a display picture, acquiring original ambient light intensity through the illumination sensor;
step S102, under the condition that the display equipment outputs a display picture based on reference display brightness, acquiring reference ambient light intensity through the illumination sensor;
Step S103, subtracting the original ambient light intensity from the reference ambient light intensity to obtain a difference value, which is used as a reference ambient light increment of the display device.
In this embodiment, the ambient light intensity of the display device when the display device does not output a display screen and outputs the display screen based on the reference display brightness may be acquired by the illumination sensor, so as to obtain the influence degree of the display screen output by the display device on the ambient light acquisition, specifically, the display device may be first kept in a black screen state (i.e. the display screen is not output), the original ambient light intensity at this time is acquired, then the display device is kept in a bright screen state based on the reference display brightness, the reference ambient light intensity at this time is acquired again, and the result obtained by subtracting the original ambient light intensity from the reference ambient light intensity is the reference ambient light increment when the display device acquires the ambient light intensity through the illumination sensor in this environment, that is, the influence of diffuse reflection generated on the surface of each object in the environment by the screen luminescence of the display device on the acquisition reading of the illumination sensor in the case that the display device outputs the display screen based on the reference display brightness.
It will be appreciated that the reference ambient light increment obtained in this embodiment is applicable to a case where the position of the display device is substantially unchanged, and the position of other things in the environment where the display device is located is also substantially unchanged.
As one example, the reference display luminance includes a maximum image luminance and a maximum backlight luminance, and the reference ambient light intensity includes a maximum ambient light intensity; the step S102 may specifically include: and acquiring the maximum ambient light intensity by the illumination sensor under the condition that the display device outputs a display picture based on the maximum image brightness and the maximum backlight brightness.
In this embodiment, the display device may be kept in a 100% bright screen state (i.e. the image brightness is 100% and the backlight brightness is 100%), then the reference ambient light intensity at this time is collected, the result obtained by subtracting the original ambient light intensity from the reference ambient light intensity is the reference ambient light increment of the display device in the environment, that is, in the case that the display device is kept in a 100% bright screen state, the diffuse reflection generated by the surface of each object in the environment due to the screen light emission affects the reading collected by the sensor, where the embodiment only uses the maximum image brightness and the maximum backlight brightness as an example, the reference display brightness may also be other known preset values, and the preset values of the reference image brightness and the reference backlight brightness do not necessarily have to be identical, for example: (image brightness 80%, backlight brightness 50%) (image brightness 33%, backlight brightness 68%) (image brightness 50%, backlight brightness 0%), etc., how to set the preset reference image brightness and the reference backlight brightness, and whether the reference backlight brightness needs to be set or not can be determined according to practical situations, which is not limited in this embodiment.
Step S20, under the condition that the display equipment normally outputs a display picture, acquiring the current display brightness of the display equipment;
in this embodiment, the precondition of adjusting the backlight brightness is that the current display brightness of the display screen is acquired first, the current display brightness can be transmitted to the processing control center through the display screen, and by comparing the current display brightness with the reference display brightness when the reference ambient light increment is acquired, the influence degree of the current display brightness on the ambient light intensity acquisition relative to the reference display brightness can be known.
Step S30, determining a current ambient light increment according to the current display brightness and the reference ambient light increment;
in this embodiment, after the current display brightness acquiring operation is completed, the current display brightness can be compared with the reference object obtained in the previous step, so as to determine the influence of the current screen lighting on the sensor acquisition reading.
As one example, the current display brightness includes a current image brightness; the step S30 specifically includes: and determining the current ambient light increment according to the current image brightness and the reference ambient light increment.
In this embodiment, only the influence of the image brightness on the ambient light collection is considered, the current image brightness refers to the percentage of the lighting degree of the current display screen relative to the reference display screen (which can be directly obtained through the built-in software of the display device), the product obtained by multiplying the current image brightness by the reference ambient light increment is the current ambient light increment, that is, the influence of diffuse reflection generated by the light emission of the current display screen on the surface of each object in the environment on the collection reading of the illumination sensor.
As an example, the current display brightness may include a current backlight brightness in addition to the current image brightness described above; the step S30 specifically includes: and determining the current ambient light increment according to the current image brightness, the current backlight brightness and the reference ambient light increment.
In this embodiment, the influence of the backlight brightness on the ambient light collection is considered in addition to the image brightness, so that the percentage of the light emission degree of the current screen backlight relative to the reference screen backlight (which can also be directly obtained through the built-in software of the display device) needs to be obtained, the current image brightness, the current backlight brightness and the reference ambient light increment are multiplied, and the obtained product is the current ambient light increment, that is, the influence of diffuse reflection generated by the current display screen light on the surfaces of all things in the environment on the acquisition reading of the illumination sensor.
Step S40, collecting current ambient light intensity through the illumination sensor, and determining real ambient light intensity according to the current ambient light intensity and the current ambient light increment;
In this embodiment, under the condition that the current ambient light intensity collected under the current state of the illumination sensor and the influence of screen illumination on the reading of the illumination sensor, that is, the current ambient light increment, are known, the real ambient light intensity which is not polluted by the screen illumination can be obtained, and specifically, the difference obtained by subtracting the current ambient light increment from the current ambient light intensity can be used as the real ambient light intensity.
It will be appreciated that when the screen is kept blank with no image, the raw ambient light intensity collected is the ambient light intensity value that is not contaminated by the screen luminescence. When the screen outputs an image, the acquired current ambient light intensity value=original ambient light intensity+current ambient light increment of the sensor after diffuse reflection of screen luminescence. Thus, real ambient light intensity = current ambient light intensity-current ambient light delta.
And S50, determining a target dimming parameter according to the real environment light intensity and a preset numerical value corresponding table, and adjusting the brightness of the display equipment based on the target dimming parameter.
In this embodiment, the preset value correspondence table includes a first value correspondence table and a second value correspondence table, where the first value correspondence table is a value correspondence table of ambient light intensity and backlight brightness, and the second value correspondence table is a value correspondence table of backlight brightness and dimming parameters; the step S50 includes:
step S51, generating a corresponding relation comprising ambient light intensity and dimming parameters based on the first numerical value corresponding table and the second numerical value corresponding table;
and S52, substituting the real ambient light intensity into the corresponding relation to obtain a target dimming parameter.
It should be noted that, the first numerical value correspondence table in the present embodiment may be a correspondence table of ambient light intensity and screen backlight brightness provided by a professional image quality personnel, a relationship line diagram thereof is shown in fig. 5, and a fitting function L panel＝f1 (L) of the ambient light intensity and the screen backlight brightness may be obtained based on the relationship, where L panel is the illumination intensity of the screen backlight, L is the pure ambient light intensity, and f 1 is a first fitting function designed according to the first numerical value correspondence table of the two; in addition, a second numerical value corresponding table of the screen backlight brightness and the dimming parameter set under the screen backlight driving can be obtained through actual measurement, and a corresponding relation between the dimming parameter and the ambient light intensity can be generated by combining the first numerical value corresponding table and the second numerical value corresponding table: y=f 2(Lpanel)＝f2(f1 (L)), where Y is a screen backlight driving down-set dimming parameter, and f 2 is a second fitting function designed and generated according to a second numerical correspondence table; from the correspondence equation, in the case of knowing the real environment light intensity that is not affected by the screen lighting, the product of the real environment light intensity, the first fitting function, and the second fitting function can be regarded as the target dimming parameter that is ultimately to be set to the screen backlight drive.
In the embodiment, a brightness adjusting method is provided, firstly, a reference ambient light increment of a display device is acquired through an illumination sensor, namely, a reference object of influence degree of screen luminescence on ambient light acquisition is determined; under the condition that the display equipment normally outputs a display picture, acquiring the current display brightness of the display equipment; then determining the current ambient light increment according to the current display brightness and the reference ambient light increment, namely determining the actual influence of the current screen luminescence of the display equipment on ambient light acquisition; then collecting the current ambient light intensity through an illumination sensor, and determining the real ambient light intensity according to the current ambient light intensity and the current ambient light increment, so as to obtain the pure ambient light intensity which is not influenced by screen illumination; and finally, determining a target dimming parameter according to the real ambient light intensity and a preset numerical value correspondence table, and adjusting the brightness of the display equipment based on the target dimming parameter, so that the influence of the brightness change of the screen on the automatic brightness adjustment effect can be avoided, and the defects in the related technology are overcome.
In some possible embodiments, the display screen of the display device comprises a plurality of display areas, the current ambient light increment comprising a sum of current ambient light increments for each display area; the step S30 may further include: and determining the sum of the current ambient light increment of each display area according to the current display brightness of each display area and the reference ambient light increment of each display area.
It should be noted that, in the above embodiment, the image brightness and the backlight brightness may be regarded as the average data of the whole display screen is directly collected, and for a larger display screen, the display screen may be divided into several areas, and then the above steps may be performed to obtain more accurate target dimming parameters.
As an example, as shown in fig. 6, the display screen may be divided into 16 areas, each of which is allowed to output a 100% white field picture signal separately, and at this time the screen backlight brightness is controlled to be 100%. By illuminating the sensor we can obtain the reference ambient light reading increment generated for each zone. All increments are accumulated, i.e., reference increment values for the effect of the entire screen on the ambient light reading. When outputting a regular picture, we just divide the picture into the same several areas, calculate the image brightness value of each area, combine the current screen backlight brightness, calculate the ambient light reading increment of the area, calculate the ambient light reading increment of all areas and sum, obtain the total ambient light reading increment, thus obtain the current original ambient light intensity value = sensor illumination intensity reading-the total ambient light reading increment.
As an example, let L0 be the reading of the illumination sensor when no screen (black screen) is output from the display screen under certain circumstances; l 1 to L n are readings of the illumination sensor when the screen is divided into n regions, each region individually outputting 100% white field picture signals, and when the screen backlight luminance is controlled to 100%. The resulting illumination sensor reading increment value for each region (100% white field picture signal and 100% screen backlight brightness) is then: ΔL n＝Ln-L0,ΔLn is the reference ambient light delta for each of the display regions.
In this embodiment, the step S30 may further include:
step S311, calculating a first ratio of the current backlight brightness of each display area to the reference backlight brightness;
step S312, calculating a second ratio of the current image brightness to the reference image brightness of each display area;
Step S313, multiplying the first ratio, the second ratio and the reference ambient light increment of each display area to obtain a product, which is used as the current ambient light increment of each display area.
As an example, in the above environment, if the ambient light changes (e.g. sunlight is reduced), when the screen outputs a picture, the illumination sensor reads LC, the system intercepts the display picture, calculates the brightness value of each small picture in several areas which are the same as the display screen in the above embodiment as B 1 to B n, calculates the brightness value of 100% white field picture with the same size (small picture size) as B0 (i.e. the reference image brightness of each display area), and the first ratio of the current screen backlight brightness to the reference backlight brightness is BL, so that the effect of each small picture on the sensor reading can be obtained:
In this embodiment, the step S40 may further include: and subtracting the sum of the current ambient light increment of each display area from the current ambient light intensity to obtain a difference value, and taking the difference value as the actual ambient light intensity.
As an example, in the case where the above embodiment has obtained the current ambient light increment Δl' n for each of the display areas, the calculation formula for obtaining the real ambient light intensity L that is not contaminated by the screen light emission may be:
In addition, an embodiment of the present application further provides a brightness adjusting device, referring to fig. 7, fig. 7 is a schematic structural diagram of the brightness adjusting device according to an embodiment of the present application, as shown in fig. 7, where in the embodiment, the brightness adjusting device is applied to a display device, and includes: the device comprises an acquisition module 100, an acquisition module 200 and a processing module 300.
The acquisition module 100 is configured to acquire a reference ambient light increment of the display device through an illumination sensor;
The obtaining module 200 is configured to obtain a current display brightness of the display device when the display device normally outputs a display screen;
The processing module 300 is configured to determine a current ambient light increment according to the current display brightness and the reference ambient light increment;
the acquisition module 100 is further configured to acquire a current ambient light intensity through the illumination sensor, and the processing module 300 is further configured to determine a real ambient light intensity according to the current ambient light intensity and the current ambient light increment;
The processing module 300 is further configured to determine a target dimming parameter according to the real ambient light intensity and a preset numerical value correspondence table, and adjust the brightness of the display device based on the target dimming parameter.
In some possible embodiments, the collecting module 100 is further configured to collect, by the illumination sensor, the original ambient light intensity in a case where the display device does not output a display screen; acquiring reference ambient light intensity by the illumination sensor under the condition that the display device outputs a display picture based on reference display brightness; and subtracting the original ambient light intensity from the reference ambient light intensity to obtain a difference value serving as a reference ambient light increment of the display device.
In some possible embodiments, the reference display brightness comprises a maximum image brightness and a maximum backlight brightness, and the reference ambient light intensity comprises a maximum ambient light intensity;
The acquisition module 100 is further configured to acquire the maximum ambient light intensity by the illumination sensor when the display device outputs a display screen based on the maximum image brightness and the maximum backlight brightness.
In some possible embodiments, the current display brightness comprises a current image brightness;
The processing module 300 is further configured to determine the current ambient light delta according to the current image brightness and the reference ambient light delta.
In some possible embodiments, the current display brightness further comprises a current backlight brightness;
The processing module 300 is further configured to determine the current ambient light delta according to the current image brightness, the current backlight brightness, and the reference ambient light delta.
In some possible embodiments, the display screen of the display device comprises a plurality of display areas, the current ambient light increment comprising a sum of current ambient light increments for each display area;
the processing module 300 is further configured to determine a sum of current ambient light increments for each display area according to the current display brightness of each display area and the reference ambient light increment for each display area.
In some possible embodiments, the preset value correspondence table includes a first value correspondence table and a second value correspondence table, where the first value correspondence table is a value correspondence table of ambient light intensity and backlight brightness, and the second value correspondence table is a value correspondence table of backlight brightness and dimming parameters;
The processing module 300 is further configured to generate a corresponding relation including an ambient light intensity and a dimming parameter based on the first numerical value correspondence table and the second numerical value correspondence table; substituting the real ambient light intensity into the corresponding relation to obtain a target dimming parameter.
The luminance adjusting device provided in this embodiment belongs to the same technical concept as the luminance adjusting method provided in the above embodiment, and technical details not described in detail in this embodiment can be seen in any of the above embodiments, and this embodiment has the same advantageous effects as those of performing the luminance adjusting method.
In addition, the embodiment of the application further provides a display device, the brightness adjusting method applied to the display device can be executed by a brightness adjusting device, and the brightness adjusting device can be realized in a software and/or hardware mode and is integrated in the display device. The display device may be an electronic device with a display screen, such as a television, a PC (Personal Computer, a personal computer, a desktop computer, a notebook computer, a mini notebook computer, a tablet computer, an ultrabook, etc.), a mobile phone, an intelligent wearable device, etc.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a display device according to an embodiment of the present application. As shown in fig. 8, the display device may include: a processor 1001, such as a central processing unit (Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, a memory 1005. Wherein the communication bus 1002 is used to enable connected communication between these components. The user interface 1003 may include a Display, an input unit such as a Keyboard (Keyboard), and the optional user interface 1003 may further include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., a wireless FIdelity (WI-FI) interface). The Memory 1005 may be a high-speed random access Memory (Random Access Memory, RAM) or a stable nonvolatile Memory (NVM), such as a disk Memory. The memory 1005 may also optionally be a storage device separate from the processor 1001 described above.
It will be appreciated by those skilled in the art that the structure shown in fig. 8 is not limiting of the display device and may include more or fewer components than shown, or may combine certain components, or may be arranged in different components.
As shown in fig. 8, an operating system, a data storage module, a network communication module, a user interface module, and a computer program may be included in the memory 1005 as one type of storage medium.
In the display device shown in fig. 8, the network interface 1004 is mainly used for data communication with other devices; the user interface 1003 is mainly used for data interaction with a user; the processor 1001, the memory 1005 in the present embodiment may be provided in a display device that calls a computer program stored in the memory 1005 through the processor 1001 and performs the following operations:
Collecting a reference ambient light increment of the display device by an illumination sensor;
Acquiring the current display brightness of the display equipment under the condition that the display equipment normally outputs a display picture;
determining a current ambient light increment according to the current display brightness and the reference ambient light increment;
collecting current ambient light intensity through the illumination sensor, and determining real ambient light intensity according to the current ambient light intensity and the current ambient light increment;
And determining a target dimming parameter according to the real ambient light intensity and a preset numerical value corresponding table, and adjusting the brightness of the display equipment based on the target dimming parameter.
Further, the processor 1001 may call a computer program stored in the memory 1005, and further perform the following operations:
Under the condition that the display equipment does not output a display picture, acquiring original ambient light intensity through the illumination sensor;
Acquiring reference ambient light intensity by the illumination sensor under the condition that the display device outputs a display picture based on reference display brightness;
and subtracting the original ambient light intensity from the reference ambient light intensity to obtain a difference value serving as a reference ambient light increment of the display device.
Further, the reference display luminance includes a maximum image luminance and a maximum backlight luminance, and the reference ambient light intensity includes a maximum ambient light intensity; the processor 1001 may call a computer program stored in the memory 1005, and also perform the following operations:
And acquiring the maximum ambient light intensity by the illumination sensor under the condition that the display device outputs a display picture based on the maximum image brightness and the maximum backlight brightness.
Further, the current display brightness includes a current image brightness; the display screen of the display device includes a plurality of display areas, and the processor 1001 may call a computer program stored in the memory 1005, and also perform the following operations:
and determining the current ambient light increment according to the current image brightness and the reference ambient light increment.
Further, the current display brightness further comprises a current backlight brightness; the processor 1001 may call a computer program stored in the memory 1005, and also perform the following operations:
And determining the current ambient light increment according to the current image brightness, the current backlight brightness and the reference ambient light increment.
Further, the display screen of the display device includes a plurality of display areas, and the current ambient light increment includes a sum of current ambient light increments of the respective display areas; the processor 1001 may call a computer program stored in the memory 1005, and also perform the following operations:
And determining the sum of the current ambient light increment of each display area according to the current display brightness of each display area and the reference ambient light increment of each display area.
Further, the preset value corresponding table comprises a first value corresponding table and a second value corresponding table, wherein the first value corresponding table is a value corresponding table of ambient light intensity and backlight brightness, and the second value corresponding table is a value corresponding table of backlight brightness and dimming parameters; the processor 1001 may call a computer program stored in the memory 1005, and also perform the following operations:
generating a corresponding relation comprising ambient light intensity and dimming parameters based on the first numerical value corresponding table and the second numerical value corresponding table;
Substituting the real ambient light intensity into the corresponding relation to obtain a target dimming parameter.
The display device according to the present embodiment belongs to the same technical concept as the brightness adjustment method according to the above embodiment, which is applied to the display device, and technical details not described in detail in the present embodiment can be seen in any of the above embodiments, and the present embodiment has the same advantages as those of performing the brightness adjustment method.
In addition, the embodiment of the application also provides a computer readable storage medium, which is applied to a computer, and the computer readable storage medium can be a nonvolatile computer readable storage medium, and a computer program is stored on the computer readable storage medium, and when the computer program is executed by a processor, the brightness adjustment method of any embodiment is realized.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
While the preferred embodiments of the present application have been described in detail, the embodiments of the present application are not limited to the above-described embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the embodiments of the present application, and these equivalent modifications or substitutions are included in the scope of the embodiments of the present application as defined in the appended claims.

Claims (10)

1. A brightness adjustment method, wherein the brightness adjustment method is applied to a display device, the brightness adjustment method comprising:
Collecting a reference ambient light increment of the display device by an illumination sensor;
Acquiring the current display brightness of the display equipment under the condition that the display equipment normally outputs a display picture;
determining a current ambient light increment according to the current display brightness and the reference ambient light increment;
collecting current ambient light intensity through the illumination sensor, and determining real ambient light intensity according to the current ambient light intensity and the current ambient light increment;
And determining a target dimming parameter according to the real ambient light intensity and a preset numerical value corresponding table, and adjusting the brightness of the display equipment based on the target dimming parameter.
2. The brightness adjustment method of claim 1, wherein the step of collecting the reference ambient light increment of the display device by the illumination sensor comprises:
Under the condition that the display equipment does not output a display picture, acquiring original ambient light intensity through the illumination sensor;
Acquiring reference ambient light intensity by the illumination sensor under the condition that the display device outputs a display picture based on reference display brightness;
and subtracting the original ambient light intensity from the reference ambient light intensity to obtain a difference value serving as a reference ambient light increment of the display device.
3. The brightness adjustment method of claim 2 wherein the reference display brightness comprises a maximum image brightness and a maximum backlight brightness, and the reference ambient light intensity comprises a maximum ambient light intensity;
The method for acquiring the reference ambient light intensity by the illumination sensor in the case that the display device outputs a display screen based on the reference display luminance specifically includes:
And acquiring the maximum ambient light intensity by the illumination sensor under the condition that the display device outputs a display picture based on the maximum image brightness and the maximum backlight brightness.
4. The brightness adjustment method of claim 1 wherein the current display brightness comprises a current image brightness;
The determining the current ambient light increment according to the current display brightness and the reference ambient light increment specifically includes:
and determining the current ambient light increment according to the current image brightness and the reference ambient light increment.
5. The brightness adjustment method of claim 4 wherein the current display brightness further comprises a current backlight brightness;
The determining the current ambient light increment according to the current display brightness and the reference ambient light increment specifically includes:
And determining the current ambient light increment according to the current image brightness, the current backlight brightness and the reference ambient light increment.
6. The brightness adjustment method of claim 1 wherein the display screen of the display device comprises a plurality of display areas, the current ambient light increment comprising a sum of current ambient light increments for each display area;
The determining the current ambient light increment according to the current display brightness and the reference ambient light increment specifically includes:
And determining the sum of the current ambient light increment of each display area according to the current display brightness of each display area and the reference ambient light increment of each display area.
7. The method of claim 1, wherein the preset value table includes a first value table and a second value table, the first value table is a value table of ambient light intensity and backlight brightness, and the second value table is a value table of backlight brightness and dimming parameters;
the step of determining the target dimming parameter according to the real ambient light intensity and the preset numerical value corresponding table comprises the following steps:
generating a corresponding relation comprising ambient light intensity and dimming parameters based on the first numerical value corresponding table and the second numerical value corresponding table;
Substituting the real ambient light intensity into the corresponding relation to obtain a target dimming parameter.
8. A brightness adjustment device, wherein the brightness adjustment device is applied to a display apparatus, the brightness adjustment device comprising:
the acquisition module is used for acquiring the reference ambient light increment of the display equipment through the illumination sensor;
The acquisition module is used for acquiring the current display brightness of the display equipment under the condition that the display equipment normally outputs a display picture;
the processing module is used for determining the current ambient light increment according to the current display brightness and the reference ambient light increment;
The acquisition module is further used for acquiring current ambient light intensity through the illumination sensor, and the processing module is further used for determining real ambient light intensity according to the current ambient light intensity and the current ambient light increment;
The processing module is further used for determining a target dimming parameter according to the real environment light intensity and a preset numerical value corresponding table, and adjusting the brightness of the display device based on the target dimming parameter.
9. A display device, the display device comprising: memory, a processor and a computer program stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the brightness adjustment method according to any one of claims 1 to 7.
10. A computer-readable storage medium, characterized in that the computer-readable storage medium has stored thereon a computer program which, when executed by a processor, implements the steps of the brightness adjustment method according to any one of claims 1 to 7.
CN202410317477.6A 2024-03-19 2024-03-19 Brightness adjustment method, brightness adjustment device, display device and computer-readable storage medium Pending CN118212895A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202410317477.6A CN118212895A (en) 2024-03-19 2024-03-19 Brightness adjustment method, brightness adjustment device, display device and computer-readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202410317477.6A CN118212895A (en) 2024-03-19 2024-03-19 Brightness adjustment method, brightness adjustment device, display device and computer-readable storage medium

Publications (1)

Publication Number Publication Date
CN118212895A true CN118212895A (en) 2024-06-18

Family

ID=91453867

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202410317477.6A Pending CN118212895A (en) 2024-03-19 2024-03-19 Brightness adjustment method, brightness adjustment device, display device and computer-readable storage medium

Country Status (1)

Country Link
CN (1) CN118212895A (en)

Similar Documents

Publication Publication Date Title
US10290285B2 (en) Apparatus and method for preparing, storing, transmitting and displaying images
US10630906B2 (en) Imaging control method, electronic device and computer readable storage medium
US8736674B2 (en) Method and system for 3D display calibration with feedback determined by a camera device
WO2020034737A1 (en) Imaging control method, apparatus, electronic device, and computer-readable storage medium
US9672764B2 (en) Liquid crystal display device
US11594159B2 (en) Display management with ambient light compensation
CN101115149B (en) Image processing method
WO2020034701A1 (en) Imaging control method and apparatus, electronic device, and readable storage medium
US20080158258A1 (en) Method and System For Obtaining a Digitally Enhanced Image
CN109361853A (en) Image processing method, device, electronic equipment and storage medium
JP2022027436A (en) Image processing method and device, terminal, and storage medium
CN113286094A (en) Automatic image exposure method, device, equipment and medium
KR100495415B1 (en) Auto exposure apparatus in image sensor
CN114222098A (en) Gamma curve adjusting method and device for projection equipment
US20230020363A1 (en) Projection apparatus, projection method, and computer-readable storage medium
CN118212895A (en) Brightness adjustment method, brightness adjustment device, display device and computer-readable storage medium
CN113873208B (en) Gamma curve adjusting method and equipment for projection equipment
KR101923162B1 (en) System and Method for Acquisitioning HDRI using Liquid Crystal Panel
US11272117B2 (en) Information processing apparatus, information processing method, program, and lighting system
US11165968B2 (en) Information processing apparatus, information processing method, program, and lighting system
TWI642042B (en) Image adjusting method and electronic device for transflective display
CN118038826B (en) Energy saving method and device for LED screen and storage medium
US20230326163A1 (en) Imaging apparatus
KR101495345B1 (en) Method and appratus for controlling (an) image of projector
CN116263988A (en) Method, host computer and computer readable storage medium for determining ambient light level

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination