CN112071267A - Brightness adjusting method, brightness adjusting device, terminal equipment and storage medium - Google Patents
Brightness adjusting method, brightness adjusting device, terminal equipment and storage medium Download PDFInfo
- Publication number
- CN112071267A CN112071267A CN202010997687.6A CN202010997687A CN112071267A CN 112071267 A CN112071267 A CN 112071267A CN 202010997687 A CN202010997687 A CN 202010997687A CN 112071267 A CN112071267 A CN 112071267A
- Authority
- CN
- China
- Prior art keywords
- current display
- gray scale
- display picture
- gamma
- gamma correction
- 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.)
- Granted
Links
Images
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The application is applicable to the technical field of display, and provides a brightness adjusting method, a brightness adjusting device, a terminal device and a storage medium, which comprise the following steps: acquiring the average gray scale of the current display picture of the display; acquiring a gamma correction value of the current display picture according to the average gray scale of the current display picture; and adjusting the brightness of the current display picture according to the gamma correction value of the current display picture. According to the method and the device, on the basis of keeping the IR-drop characteristic of the display, the contrast of the display picture is optimized, and the layering sense of the display picture is improved.
Description
Technical Field
The present application belongs to the field of display technologies, and in particular, to a brightness adjustment method, a brightness adjustment apparatus, a terminal device, and a storage medium.
Background
With the continuous development of Active-matrix organic light-emitting diode (AMOLED) technology, AMOLED has been widely used. In an AMOLED display, current is transmitted along the circuit, and the resistance and impedance of the circuit traces will cause a voltage drop, which is called IR-drop, and is an inherent characteristic of the AMOLED.
In the prior art, the IR-drop characteristic of the AMOLED display is controlled by two modes, the first mode is to control the on or off of the IR-drop by a driving IC register, but the first mode easily causes extreme display effect of the display, such as ultrahigh contrast or rapid reduction of the contrast of a display screen, and the second mode is to compensate the IR-drop characteristic at a process end to eliminate the IR-drop phenomenon, but the second mode easily causes rapid reduction of the contrast of the display screen and lacks of gradation of the display screen.
Disclosure of Invention
The application provides a brightness adjusting method, a brightness adjusting device, a terminal device and a storage medium, which are used for optimizing the contrast of a display picture and improving the layering sense of the display picture on the basis of keeping the IR-drop characteristic of a display.
In a first aspect, an embodiment of the present application provides a brightness adjustment method, where the brightness adjustment method includes:
acquiring the average gray scale of the current display picture of the display;
acquiring a gamma correction value of the current display picture according to the average gray scale of the current display picture;
and adjusting the brightness of the current display picture according to the gamma correction value of the current display picture.
In a second aspect, an embodiment of the present application provides a brightness adjusting apparatus, including:
the gray scale acquisition module is used for acquiring the average gray scale of the current display picture of the display;
the correction acquisition module is used for acquiring the gamma correction value of the current display picture according to the average gray scale of the current display picture;
and the brightness adjusting module is used for adjusting the brightness of the current display picture according to the gamma correction value of the current display picture.
In a third aspect, an embodiment of the present application provides a terminal device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, and the processor implements the steps of the brightness adjustment method according to the first aspect when executing the computer program.
In a fourth aspect, the present application provides a computer-readable storage medium, which stores a computer program, and when the computer program is executed by a processor, the computer program implements the steps of the brightness adjustment method according to the first aspect.
In a fifth aspect, the present application provides a computer program product, which when run on a terminal device, causes the terminal device to perform the steps of the brightness adjustment method according to the first aspect.
Therefore, the average gray scale of the current display picture of the display is obtained, the gamma correction value of the current display picture can be obtained according to the average gray scale of the current display picture, and the brightness of the current display picture can be adjusted according to the gamma correction value of the current display picture, so that the display effect of the display is optimized on the basis of keeping the IR-drop characteristic of the display, the contrast of the display picture is vivid, and the layering sense of the display picture is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic flow chart illustrating an implementation of a brightness adjustment method according to an embodiment of the present application;
FIG. 2a is an exemplary diagram of a non-full screen image; FIG. 2b is a graph showing an example of image brightness when the loads are 192, 255 and full screen; FIG. 2c is a graph showing an example of the gamma value of an image at loads of 0, 192, 255 and full screen; FIG. 2d is a representative graph of gamma values of the image after the corresponding gamma value of the pixel level when the load is 192 in FIG. 2c is adjusted to the reference gamma value;
fig. 3 is a schematic flow chart illustrating an implementation of a brightness adjustment method according to a second embodiment of the present application;
fig. 4 is a schematic flow chart illustrating an implementation of a brightness adjustment method according to a third embodiment of the present application;
fig. 5 is a schematic structural diagram of a brightness adjustment apparatus according to a fourth embodiment of the present application;
fig. 6 is a schematic structural diagram of a terminal device provided in the fifth embodiment of the present application;
fig. 7 is a schematic structural diagram of a terminal device according to a sixth 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 particular system structures, 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 the present application may be practiced in other embodiments that 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 present application with unnecessary detail.
It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
In particular implementations, the terminal devices described in embodiments of the present application include, but are not limited to, other portable devices such as mobile phones, laptop computers, or tablet computers having touch sensitive surfaces (e.g., touch screen displays and/or touch pads). It should also be understood that in some embodiments, the device is not a portable communication device, but is a desktop computer having a touch-sensitive surface (e.g., a touch screen display and/or touchpad).
In the discussion that follows, a terminal device that includes a display and a touch-sensitive surface is described. However, it should be understood that the terminal device may include one or more other physical user interface devices such as a physical keyboard, mouse, and/or joystick.
The terminal device supports various applications, such as one or more of the following: a drawing application, a presentation application, a word processing application, a website creation application, a disc burning application, a spreadsheet application, a gaming application, a telephone application, a video conferencing application, an email application, an instant messaging application, an exercise support application, a photo management application, a digital camera application, a web browsing application, a digital music player application, and/or a digital video player application.
Various applications that may be executed on the terminal device may use at least one common physical user interface device, such as a touch-sensitive surface. One or more functions of the touch-sensitive surface and corresponding information displayed on the terminal can be adjusted and/or changed between applications and/or within respective applications. In this way, a common physical architecture (e.g., touch-sensitive surface) of the terminal can support various applications with user interfaces that are intuitive and transparent to the user.
It should be understood that, the sequence numbers of the steps in this embodiment do not mean the execution sequence, and the execution sequence of each process should be determined by the function and the inherent logic of the process, and should not constitute any limitation to the implementation process of the embodiment of the present application.
In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.
Referring to fig. 1, which is a schematic view of an implementation flow of a brightness adjustment method provided in an embodiment of the present application, where the brightness adjustment method is applied to a terminal device, as shown in the figure, the brightness adjustment method may include the following steps:
The display is an AMOLED display, where the AMOLED is a display technology in which Organic Light Emitting Diode (OLED) pixels are deposited or integrated on a Thin Film Transistor (TFT) array, and the current flowing into each OLED pixel is controlled by the TFT array, so as to determine the intensity of Light emitted by each pixel. The OLED is a current-type organic light emitting device, and refers to a diode that emits light by injecting and recombining carriers under the driving of an electric field by using an organic semiconductor material and a light emitting material. The TFT belongs to an active matrix liquid crystal display, and can actively control each independent pixel point on the display, thereby improving the response time.
The current display picture refers to a picture currently displayed by the display, and the average gray scale of the current display picture refers to the average value of the gray scales of all pixel points in the current display picture.
Optionally, the obtaining the average gray scale of the current display frame of the display comprises:
acquiring the gray scale of each pixel point in the current display picture and the total number of the pixel points in the current display picture;
and calculating the average gray scale of the current display picture according to the gray scale of each pixel point in the current display picture and the total number of the pixel points in the current display picture.
In this embodiment, the gray scales of all the pixels in the current display frame are accumulated, and the average gray scale of the current display frame can be obtained by dividing the accumulated value by the total number of the pixels in the current display frame. Optionally, when the total number of the pixels in the current display frame is obtained, a gray level histogram of the current display frame may be obtained based on the gray level of each pixel in the current display frame, and the number of pixels in the same gray level may be obtained according to the gray level histogram, where the sum of the numbers of pixels in all different gray levels is the total number of the pixels in the current display frame.
And 102, acquiring the gamma correction value of the current display picture according to the average gray scale of the current display picture.
In this embodiment, the gamma correction value of the current display picture is obtained according to the average gray scale of the current display picture of the display, so that dynamic adjustment of the gamma correction value can be realized for display pictures with different average gray scales, and a suitable gamma correction value is provided for display pictures with different average gray scales, thereby realizing dynamic adjustment of the brightness of display pictures with different average gray scales. Wherein, the gamma correction value of the current display picture is used for adjusting the brightness of the current display picture.
During human evolution, the human eye develops a property: in a low-brightness environment, the method is sensitive to brightness change and can sense smaller brightness difference; in a high-brightness environment, the high-brightness environment is insensitive to brightness change, and when the brightness value changes greatly, the human eye can distinguish the high-brightness environment, and the characteristic can be called Gamma characteristic (namely Gamma characteristic) of the human eye.
Due to the non-linear perception characteristic of human eyes to the brightness, if the brightness perception with uniform change needs to be obtained, the brightness displayed by the display needs to be non-uniformly changed so as to adapt to the Gamma characteristic of human eyes, the non-linear relation parameter of the brightness and the gray scale is a Gamma value, and a curve drawn according to the Gamma value is a Gamma curve.
In a test scenario, taking 255 pure gray level pictures as an example, the pure gray level pictures refer to that gray levels of all pixel points in the pictures are the same and are any value from 0 to 255, the 255 pure gray level pictures are photographed to obtain 255 non-full screen images and 255 full screen images, that is, each gray level corresponds to one non-full screen image and one full screen image, for one gray level (for example, 125), the non-full screen image corresponding to the gray level refers to that the pure gray level picture corresponding to the gray level is not displayed in full screen, and the gray levels of the pixel points in other areas in the non-full screen image are the same (for example, the size of the non-full screen image is 100 pixel points, the size of the pure gray level picture in the non-full screen image is 20 pixel points, the gray level of the 20 pixel points is 125, and the gray levels of the other pixel points except the 20 pixel points in the non-full screen image are 192), the full-screen image corresponding to the gray scale indicates that the pure gray scale picture corresponding to the gray scale is displayed in full screen (for example, the size of the full-screen image is 100 × 100 pixel points, the size of the pure gray scale picture in the full-screen image is 100 × 100 pixel points, that is, the whole image of the full-screen image is the pure gray scale picture, and the gray scale of all the pixel points in the full-screen image is 125), for a non-full-screen image (as shown in fig. 2a as an exemplary diagram of a non-full-screen image), the pure gray scale picture in the non-full-screen image can be called a pixel level image, the gray scales of other pixel points except the pure gray scale picture in the non-full-screen image can be called loads of the non-full-screen image, according to the 255 pixel level images, the brightness expressions of the pixel level images when the loads are 192 and 255 full-screen images can be respectively obtained, according to the 255 full-screen images, the, fig. 2b is a diagram showing an example of image brightness expression when the load is 192, 255 and full screen, and the image brightness expression when the load is 192 refers to the brightness expression of the corresponding pixel level image when the gray scale of the pixel level image is changed in the range of 0 to 255 when the load is 192; the image brightness expression when the load is 255 refers to the brightness expression of the corresponding pixel level image when the gray scale of the pixel level image is changed within the range of 0 to 255 when the load is 255; the image brightness expression when the load is full screen refers to the brightness expression of the corresponding full screen image when the full screen displays a pure gray scale picture and the gray scale of the pure gray scale picture is changed within the range of 0 to 255. As can be seen from fig. 2b, there are pixels with brightness greater than the standard value and pixels with brightness less than or equal to the standard value in the non-full-screen image, where the standard value is the original brightness of the gray scale in the full-screen image when the gamma value of the full-screen image is 2.2. As shown in fig. 2c, the gamma value representation when the load is 0, 192, and 255 and full screen, the gamma value representation when the load is 0, 192, and 255 refers to the gamma value representation of a pixel-level image when the load is 0, 192, and 255, and the gamma value representation when the load is full screen refers to the gamma value representation of a full-screen image, as can be seen from fig. 2c, when the load is increased, the gamma value of the pixel level (i.e., the gamma value of the pixel-level image) is also increased, and when the load is decreased, the gamma value of the pixel level is also decreased, that is, the load affects the drift of the gamma value of the pixel level, and the load can be understood as the average gray level of the image, so that the brightness of the image is adjusted based on the average gray level of the image, and the adjusted brightness can be more suitable for human perception.
In this embodiment, after the gamma correction value of the current display picture is obtained, a gamma correction curve corresponding to the gamma correction value may be drawn according to the gamma correction value, where the gamma correction curve is the gamma correction curve of the current display picture, and according to the gamma correction curve, target luminances corresponding to respective pixels of different gray scales in the current display picture may be obtained, and the respective current luminances of the pixels of different gray scales in the current display picture are adjusted to the target luminances, so that the luminance of the current display picture is adjusted, the luminances of the pixels of different gray scales in the current display picture are accurately displayed, a change in luminance is in accordance with human perception, a color transparency and a light-shadow relationship of the current display picture are raised, a contrast of the current display picture is stronger and more vivid, and a display effect of the display is optimized. The adjusting of the brightness of the display frame may refer to adjusting the brightness of each pixel point in the display frame.
For example, the current display picture has 100 pixels, wherein the gray scale of 50 pixels is a, the gray scale of 50 pixels is B, the brightness corresponding to the gray scale a is a, the brightness corresponding to the gray scale B is B, the target brightness of 50 pixels with the gray scale a is a, the target brightness of 50 pixels with the gray scale B is B, the current brightness of 50 pixels with the gray scale a is adjusted to a, and the current brightness of 50 pixels with the gray scale B is adjusted to B.
Optionally, on the basis of dynamically adjusting the gamma correction value of the display picture through the average gray scale, Color correction may be performed in combination with a Color Correction Matrix (CCM) and a 3D Look up table (3D Look up table, 3D LUT), so as to enhance the Color display of the picture.
According to the embodiment of the application, the gamma correction value of the current display picture can be obtained according to the average gray scale of the current display picture by obtaining the average gray scale of the current display picture of the display, and the brightness of the current display picture can be adjusted according to the gamma correction value of the current display picture, so that the display effect of the display is optimized on the basis of keeping the IR-drop characteristic of the display, the contrast of the display picture is vivid, and the layering sense of the display picture is improved.
Referring to fig. 3, it is a schematic diagram of an implementation flow of a brightness adjustment method provided in the second embodiment of the present application, where the brightness adjustment method is applied to a terminal device, and as shown in the figure, the brightness adjustment method may include the following steps:
The step is the same as step 101, and reference may be made to the related description of step 101, which is not described herein again.
In this embodiment, after the average gray scale of the current display frame of the display is obtained, the average gray scale of the current display frame may be compared with the reference gray scale to determine whether the average gray scale of the current display frame is equal to the reference gray scale, and the gamma correction value of the current display frame is determined according to the comparison result.
The value range of the gray levels is 0 to 255, that is, 256 gray levels in total, one gray level can be selected from the 256 gray levels as a reference gray level (for example, 192), a reference gamma value corresponding to the reference gray level is preset, the reference gamma value corresponding to the reference gray level can also be referred to as a gamma correction value corresponding to the reference gray level, when the average gray level of a picture is the reference gray level, the brightness of the picture is adjusted according to the gamma correction value corresponding to the reference gray level, and the brightness of the picture can be displayed more accurately.
The reference gamma value corresponding to the reference gray scale can be stored in a memory of the terminal device in advance, when the average gray scale of the current display picture is equal to the reference gray scale, the reference gamma value corresponding to the reference gray scale is directly obtained from the memory, and the reference gamma value is used as the gamma correction value of the current display picture.
When the average gray scale of the current display picture is not equal to the reference gray scale, the difference between the average gray scale of the current display picture and the reference gray scale can be obtained by obtaining the difference value between the reference gray scale and the average gray scale of the current display picture, and the gamma correction value of the current display picture can be obtained by adjusting the reference gamma value corresponding to the reference gray scale based on the difference.
Optionally, the acquiring a reference gamma value corresponding to the reference gray level includes:
acquiring an image to be detected, wherein the average gray scale of the image to be detected is a reference gray scale;
adjusting an initial gamma value corresponding to the reference gray scale, and acquiring the display effect of the image to be detected in the adjustment process;
and if the display effect of the image to be detected meets the preset requirement, determining the gamma value when the display effect of the image to be detected meets the preset requirement as a reference gamma value corresponding to the reference gray scale.
The initial gamma value corresponding to the reference gray scale may be adjusted by a preset Compensation algorithm, where the preset Compensation algorithm is an algorithm for adjusting the initial gamma value corresponding to the reference gray scale, and includes but is not limited to a Digital Content Compensation (DCC) algorithm. The display effect of the image to be detected meeting the preset requirement can mean that the display effect of the image to be detected meets the perception of human eyes.
Since the human eye usually focuses on the partial image of the picture when viewing the picture, the reference gamma value corresponding to the reference gray level can be determined based on the pixel level image, for example, as illustrated by the load 192 in fig. 2c, when the full screen gamma value is 2.2, as can be seen from fig. 2c, the pixel level gamma value with the load 192 is located between the pixel level gamma value with the load 0 and the pixel level gamma value with the load 255, the reference gamma value corresponding to the load 192 can be found by performing debugging and comparison of the display effect on the randomly extracted multiple images, as shown in fig. 2d, the image gamma value after the pixel level gamma value corresponding to the load 192 in fig. 2c is adjusted to the reference gamma value is represented by the image gamma value, the curve indicated by the load 192 in fig. 2d is represented by the gamma value of the pixel level image after the pixel level gamma value is adjusted to the reference gamma value, as can be seen from fig. 2d, the reference gamma value corresponding to the load of 192 is closer to the full-screen gamma value of 2.2, so that the image has a better light and shadow relationship, is more transparent, and has more vivid colors. When the load is 192, the corresponding reference gamma value is close to the full-screen gamma value 2.2 instead of being equal to the full-screen gamma value 2.2, so that the increase of the brightness of the low-gray-scale image can be avoided, and noise is increased. Full screen gamma of 2.2 is currently the preferred gamma for displays recognized in the industry.
Step 305, acquiring a gamma correction value of the current display frame according to the difference value between the reference gray scale and the average gray scale of the current display frame and the reference gamma value corresponding to the reference gray scale.
In this embodiment, based on the difference between the reference gray scale and the average gray scale of the current display frame, the gamma correction value of the current display frame may be obtained by adjusting the reference gamma value corresponding to the reference gray scale.
Optionally, the obtaining the gamma correction value of the current display frame according to the difference between the reference gray scale and the average gray scale of the current display frame and the reference gamma value corresponding to the reference gray scale includes:
acquiring a target gamma value adjusting coefficient according to the difference value of the reference gray scale and the average gray scale of the current display picture;
and acquiring a gamma correction value of the current display picture according to the target gamma value adjustment coefficient and the reference gamma value corresponding to the reference gray scale.
In this embodiment, a corresponding relationship between L different difference values and K different gamma value adjustment coefficients may be preset, where K is an integer greater than zero, and L is an integer greater than or equal to K, after obtaining a difference value between a reference gray scale and an average gray scale of a current display picture, if a gamma value adjustment coefficient corresponding to the difference value is found from the corresponding relationship, it is determined that the gamma value adjustment coefficient corresponding to the difference value is a target gamma value adjustment coefficient, if a gamma value adjustment coefficient corresponding to the difference value is not found from the corresponding relationship, a difference value closest to the difference value between the reference gray scale and the average gray scale of the current display picture among the L different difference values may be obtained, and the gamma value adjustment coefficient corresponding to the difference value is determined to be the target gamma value adjustment coefficient, and a first prompt message for prompting a research and development staff that the reference gray scale and the average gray scale of the current display picture are not found in the corresponding relationship is sent to a server The gamma value adjustment coefficient corresponding to the difference value is convenient for research personnel to add the gamma value adjustment coefficient corresponding to the difference value between the reference gray scale and the average gray scale of the current display picture into the corresponding relation in the subsequent process, and the subsequent gamma value adjustment coefficient is convenient to inquire.
In this embodiment, an objective function representing a conversion relationship among the target gamma value adjustment coefficient, the reference gamma value, and the gamma correction value may be preset, and the gamma correction value may be obtained by substituting the target gamma value adjustment coefficient and the reference gamma value into the objective function.
In step 306, the brightness of the current display frame is adjusted according to the gamma correction value of the current display frame.
The step is the same as step 103, and reference may be made to the related description of step 103, which is not described herein again.
As another alternative, before obtaining the gamma correction value of the current display frame according to the average gray scale of the current display frame, the embodiment includes:
establishing a corresponding relation between N different gray scales and M different gamma correction values, wherein M is an integer larger than zero, and N is an integer larger than or equal to M;
according to the average gray scale of the current display picture, the acquiring the gamma correction value of the current display picture comprises the following steps:
detecting whether the average gray scale of the current display picture exists in the N different gray scales of the corresponding relation;
if the average gray scale of the current display picture exists, acquiring a gamma correction value corresponding to the average gray scale of the current display picture from M different gamma correction values in the corresponding relation, and determining the gamma correction value as the gamma correction value of the current display picture.
In this embodiment, the corresponding relationship between different gray scales and different gamma correction values may also be pre-established, and after the average gray scale of the current display screen is obtained, the gamma correction value corresponding to the average gray scale of the current display screen is directly searched from the corresponding relationship.
According to the embodiment of the application, the gamma correction value of the current display picture can be accurately acquired according to the difference between the average gray scale and the reference gray scale of the current display picture through the preset reference gray scale, and the display effect of the display can be optimized on the basis of the gamma correction value of the current display picture on the basis of keeping the IR-drop characteristic of the display, so that the contrast of the display picture is vivid, and the layering sense of the display picture is improved.
Referring to fig. 4, which is a schematic view of an implementation flow of a brightness adjustment method provided in the third embodiment of the present application, where the brightness adjustment method is applied to a terminal device, as shown in the figure, the brightness adjustment method may include the following steps:
The step is the same as step 101, and reference may be made to the related description of step 101, which is not described herein again.
The step is the same as step 102, and reference may be made to the related description of step 102, which is not repeated herein.
The scene to which the current display screen belongs may refer to an application to which the current display screen belongs or a category (e.g., portrait, landscape, etc.) to which a main body of the current display screen belongs. Because different application programs may have different brightness when the application program interface displays the screen, the brightness of the current display screen can be adjusted based on the application program to which the current display screen belongs, so that the brightness of the current display screen is more suitable for the brightness required by the application program when the application program displays the screen; because different subjects may have different brightness when displayed in the screen, the brightness of the current display screen can be adjusted based on the category to which the subject in the current display screen belongs, so that the brightness of the subject in the current display screen is more suitable for the brightness required by the subject in the screen.
In step 404, the gamma correction value of the current display frame is adjusted according to the scene to which the current display frame belongs.
In this embodiment, a corresponding relationship between P different scenes and Q different correction value adjustment coefficients may be preset, where Q is an integer greater than zero and P is an integer greater than or equal to Q, after the scene to which the current display screen belongs is obtained, if the correction value adjustment coefficient corresponding to the scene to which the current display screen belongs is found from the corresponding relationship, the correction value adjustment coefficient is determined to be a target correction value adjustment coefficient, if the correction value adjustment coefficient corresponding to the scene to which the current display screen belongs is not found from the corresponding relationship, a second prompt message for prompting a developer to find the correction value adjustment coefficient corresponding to the scene to which the current display screen belongs in the corresponding relationship may be sent to the server, so that the developer may add the correction value adjustment coefficient corresponding to the scene to which the current display screen belongs to the corresponding relationship in the subsequent process, facilitating subsequent lookup of correction value adjustment coefficients.
The step is partially the same as step 103, and the same parts can be referred to the related description of step 103, and are not described herein again.
According to the method and the device, on the basis of the gamma correction value of the current display picture, which is obtained based on the average gray scale of the current display picture, the gamma correction value can be adjusted based on the scene to which the current display picture belongs by obtaining the scene to which the current display picture belongs, so that the brightness of the adjusted current display picture accords with the color brightness style of the scene to which the current display picture belongs.
Fig. 5 is a schematic structural diagram of a luminance adjusting apparatus according to a fourth embodiment of the present application, and only the portions related to the embodiments of the present application are shown for convenience of description.
The brightness adjusting device includes:
a gray scale obtaining module 51, configured to obtain an average gray scale of a current display frame of the display;
a correction obtaining module 52, configured to obtain a gamma correction value of the current display frame according to the average gray scale of the current display frame;
and a brightness adjusting module 53, configured to adjust the brightness of the current display frame according to the gamma correction value of the current display frame.
Optionally, the correction acquisition module 52 includes:
the gray scale judging unit is used for judging whether the average gray scale of the current display picture is equal to the reference gray scale or not;
the correction determining unit is used for acquiring a reference gamma value corresponding to the reference gray scale if the average gray scale of the current display picture is equal to the reference gray scale, and determining the reference gamma value corresponding to the reference gray scale as the gamma correction value of the current display picture;
the parameter obtaining unit is used for obtaining the difference value of the average gray scale of the reference gray scale and the current display picture and the reference gamma value corresponding to the reference gray scale if the average gray scale of the current display picture is not equal to the reference gray scale;
and the correction acquisition unit is used for acquiring the gamma correction value of the current display picture according to the difference value between the reference gray scale and the average gray scale of the current display picture and the reference gamma value corresponding to the reference gray scale.
Optionally, the correction determining unit and the correction acquiring unit are specifically configured to:
acquiring an image to be detected, wherein the average gray scale of the image to be detected is a reference gray scale;
adjusting an initial gamma value corresponding to the reference gray scale, and acquiring the display effect of the image to be detected in the adjustment process;
and if the display effect of the image to be detected meets the preset requirement, determining the gamma value when the display effect of the image to be detected meets the preset requirement as a reference gamma value corresponding to the reference gray scale.
Optionally, the correction acquiring unit is specifically configured to:
acquiring a target gamma value adjusting coefficient according to the difference value of the reference gray scale and the average gray scale of the current display picture;
and acquiring a gamma correction value of the current display picture according to the target gamma value adjustment coefficient and the reference gamma value corresponding to the reference gray scale.
Optionally, the brightness adjusting apparatus further includes:
the relation establishing module is used for establishing the corresponding relation between the N different gray scales and the M different gamma correction values, wherein M is an integer larger than zero, and N is an integer larger than or equal to M;
the correction acquisition module 52 includes:
the gray scale detection unit is used for detecting whether the average gray scale of the current display picture exists in the N different gray scales in the corresponding relation;
and the correction value determining unit is used for acquiring a gamma correction value corresponding to the average gray scale of the current display picture from the M different gamma correction values in the corresponding relation if the average gray scale of the current display picture exists, and determining the gamma correction value as the gamma correction value of the current display picture.
Optionally, the brightness adjusting apparatus further includes:
the scene acquisition module is used for acquiring a scene to which a current display picture belongs;
the brightness adjustment module 53 is specifically configured to:
adjusting the gamma correction value of the current display picture according to the scene to which the current display picture belongs;
and adjusting the brightness of the current display picture according to the adjusted gamma correction value of the current display picture.
Optionally, the grayscale acquiring module 51 is specifically configured to:
acquiring the gray scale of each pixel point in the current display picture and the number of the pixel points in the current display picture;
and calculating the average gray scale of the current display picture according to the gray scale of each pixel point in the current display picture and the number of the pixel points in the current display picture.
The brightness adjusting device provided in the embodiment of the present application can be applied to the foregoing method embodiments, and for details, reference is made to the description of the foregoing method embodiments, and details are not repeated here.
Fig. 6 is a schematic structural diagram of a terminal device according to a fifth embodiment of the present application. The terminal device as shown in the figure may include: one or more processors 601 (only one shown); one or more input devices 602 (only one shown), one or more output devices 603 (only one shown), and memory 604. The processor 601, the input device 602, the output device 603, and the memory 604 are connected by a bus 605. The memory 604 is used for storing instructions, and the processor 601 is used for implementing the steps in the above-mentioned embodiments of the brightness adjustment method when the instructions stored in the memory 604 are executed.
It should be understood that in the embodiments of the present Application, the Processor 601 may be a Central Processing Unit (CPU), and the Processor may also be other general purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs) or other Programmable logic devices, discrete Gate or transistor logic devices, discrete hardware components, and the like. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The input device 602 may include a touch pad, a fingerprint sensor (for collecting fingerprint information of a user and direction information of the fingerprint), a microphone, a data receiving interface, and the like. The output device 603 may include a display (LCD, etc.), speakers, a data transmission interface, and the like.
The memory 604 may include both read-only memory and random access memory, and provides instructions and data to the processor 601. A portion of the memory 604 may also include non-volatile random access memory. For example, the memory 604 may also store device type information.
In a specific implementation, the processor 601, the input device 602, the output device 603, and the memory 604 described in this embodiment of the present application may execute the implementation described in the embodiment of the brightness adjustment method provided in this embodiment of the present application, or may execute the implementation described in the fourth brightness adjustment apparatus in this embodiment, which is not described herein again.
Fig. 7 is a schematic structural diagram of a terminal device according to a sixth embodiment of the present application. As shown in fig. 7, the terminal device 7 of this embodiment includes: one or more processors 70 (only one of which is shown), a memory 71, and a computer program 72 stored in the memory 71 and executable on the at least one processor 70. The steps in the various brightness adjustment method embodiments described above are implemented when the processor 70 executes the computer program 72.
The terminal device 7 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 70, a memory 71. It will be appreciated by those skilled in the art that fig. 7 is merely an example of a terminal device 7 and does not constitute a limitation of the terminal device 7 and may include more or less components than those shown, or some components may be combined, or different components, e.g. the terminal device may also include input output devices, network access devices, buses, etc.
The processor 70 may be a central processing unit CPU, but may also be other general purpose processors, digital signal processors DSP, application specific integrated circuits ASIC, off-the-shelf programmable gate arrays FPGA or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The storage 71 may be an internal storage unit of the terminal device 7, such as a hard disk or a memory of the terminal device 7. The memory 71 may also be an external storage device of the terminal device 7, such as a plug-in hard disk provided on the terminal device 7, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like. Further, the memory 71 may also include both an internal storage unit of the terminal device 7 and an external storage device. The memory 71 is used for storing computer programs and other programs and data required by the terminal device. The memory 71 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules, so as to perform all or part of the functions described above. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, a module or a unit may be divided into only one logical function, and may be implemented in other ways, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
Units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method according to the embodiments described above may be implemented by a computer program, which is stored in a computer readable storage medium and used by a processor to implement the steps of the embodiments of the methods described above. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
When the computer program product runs on the terminal device, the steps in the method embodiments can be realized when the terminal device executes the computer program product.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A brightness adjustment method, comprising:
acquiring the average gray scale of the current display picture of the display;
acquiring a gamma correction value of the current display picture according to the average gray scale of the current display picture;
and adjusting the brightness of the current display picture according to the gamma correction value of the current display picture.
2. The method of claim 1, wherein the obtaining the gamma correction value of the current display frame according to the average gray scale of the current display frame comprises:
judging whether the average gray scale of the current display picture is equal to a reference gray scale or not;
if the average gray scale of the current display picture is equal to the reference gray scale, acquiring a reference gamma value corresponding to the reference gray scale, and determining the reference gamma value corresponding to the reference gray scale as the gamma correction value of the current display picture;
if the average gray scale of the current display picture is not equal to the reference gray scale, acquiring a difference value between the reference gray scale and the average gray scale of the current display picture and a reference gamma value corresponding to the reference gray scale;
and acquiring a gamma correction value of the current display picture according to the difference value between the reference gray scale and the average gray scale of the current display picture and the reference gamma value corresponding to the reference gray scale.
3. The method of claim 2, wherein the obtaining the reference gamma value corresponding to the reference gray level comprises:
acquiring an image to be detected, wherein the average gray scale of the image to be detected is a reference gray scale;
adjusting an initial gamma value corresponding to the reference gray scale, and acquiring the display effect of the image to be detected in the adjustment process;
and if the display effect of the image to be detected meets the preset requirement, determining that the gamma value when the display effect of the image to be detected meets the preset requirement is the reference gamma value corresponding to the reference gray scale.
4. The method as claimed in claim 2, wherein the obtaining of the gamma correction value of the current display frame according to the difference between the reference gray scale and the average gray scale of the current display frame and the reference gamma value corresponding to the reference gray scale comprises:
acquiring a target gamma value adjusting coefficient according to the difference value of the reference gray scale and the average gray scale of the current display picture;
and acquiring the gamma correction value of the current display picture according to the target gamma value adjustment coefficient and the reference gamma value corresponding to the reference gray scale.
5. The method of claim 1, wherein before the obtaining of the gamma correction value for the current display frame based on the average gray level of the current display frame, the method comprises:
establishing a corresponding relation between N different gray scales and M different gamma correction values, wherein M is an integer larger than zero, and N is an integer larger than or equal to M;
the obtaining of the gamma correction value of the current display frame according to the average gray scale of the current display frame includes:
detecting whether the average gray scale of the current display picture exists in the N different gray scales of the corresponding relation;
and if the average gray scale of the current display picture exists, acquiring a gamma correction value corresponding to the average gray scale of the current display picture from M different gamma correction values of the corresponding relation, and determining the gamma correction value as the gamma correction value of the current display picture.
6. The brightness adjustment method according to claim 1, before adjusting the brightness of the current display picture based on the gamma correction value of the current display picture, further comprising:
acquiring a scene to which the current display picture belongs;
the adjusting the brightness of the current display picture according to the gamma correction value of the current display picture comprises:
adjusting the gamma correction value of the current display picture according to the scene to which the current display picture belongs;
and adjusting the brightness of the current display picture according to the adjusted gamma correction value of the current display picture.
7. The method according to any one of claims 1 to 6, wherein the obtaining the average gray scale of the current display frame of the display comprises:
acquiring the gray scale of each pixel point in the current display picture and the total number of the pixel points in the current display picture;
and calculating the average gray scale of the current display picture according to the gray scale of each pixel point in the current display picture and the total number of the pixel points in the current display picture.
8. A luminance adjustment device, characterized by comprising:
the gray scale acquisition module is used for acquiring the average gray scale of the current display picture of the display;
the correction acquisition module is used for acquiring the gamma correction value of the current display picture according to the average gray scale of the current display picture;
and the brightness adjusting module is used for adjusting the brightness of the current display picture according to the gamma correction value of the current display picture.
9. A terminal device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the steps of the brightness adjustment method according to any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the brightness adjustment method according to any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010997687.6A CN112071267B (en) | 2020-09-21 | 2020-09-21 | Brightness adjusting method, brightness adjusting device, terminal equipment and storage medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010997687.6A CN112071267B (en) | 2020-09-21 | 2020-09-21 | Brightness adjusting method, brightness adjusting device, terminal equipment and storage medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112071267A true CN112071267A (en) | 2020-12-11 |
| CN112071267B CN112071267B (en) | 2021-07-23 |
Family
ID=73681758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010997687.6A Active CN112071267B (en) | 2020-09-21 | 2020-09-21 | Brightness adjusting method, brightness adjusting device, terminal equipment and storage medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112071267B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112783460A (en) * | 2021-01-26 | 2021-05-11 | 维沃移动通信有限公司 | Display control method and device, electronic equipment and readable storage medium |
| CN113611249A (en) * | 2021-07-29 | 2021-11-05 | 新相微电子(上海)有限公司 | Method and system for reducing IR-drop influence of AMOLED panel |
| CN114038371A (en) * | 2021-11-17 | 2022-02-11 | Tcl华星光电技术有限公司 | Gamma adjustment method, related device and storage medium |
| CN115206224A (en) * | 2022-07-25 | 2022-10-18 | 武汉天马微电子有限公司 | Brightness adjusting method, device, equipment, medium, display panel and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071536A (en) * | 2006-05-10 | 2007-11-14 | 广达电脑股份有限公司 | Gamma adjusting device and its method |
| US20130127924A1 (en) * | 2011-11-18 | 2013-05-23 | Samsung Mobile Display Co., Ltd. | Method for controlling brightness in a display device and the display device using the same |
| CN106157870A (en) * | 2014-11-18 | 2016-11-23 | 深圳市华星光电技术有限公司 | The method of adjustment of display parameters, device and liquid crystal display systems |
| CN106548751A (en) * | 2017-01-13 | 2017-03-29 | 北京小米移动软件有限公司 | The display packing and device of display floater |
| CN109192174A (en) * | 2018-11-05 | 2019-01-11 | 惠科股份有限公司 | A kind of driving method of display panel, driving device and display device |
-
2020
- 2020-09-21 CN CN202010997687.6A patent/CN112071267B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101071536A (en) * | 2006-05-10 | 2007-11-14 | 广达电脑股份有限公司 | Gamma adjusting device and its method |
| US20130127924A1 (en) * | 2011-11-18 | 2013-05-23 | Samsung Mobile Display Co., Ltd. | Method for controlling brightness in a display device and the display device using the same |
| CN106157870A (en) * | 2014-11-18 | 2016-11-23 | 深圳市华星光电技术有限公司 | The method of adjustment of display parameters, device and liquid crystal display systems |
| CN106548751A (en) * | 2017-01-13 | 2017-03-29 | 北京小米移动软件有限公司 | The display packing and device of display floater |
| CN109192174A (en) * | 2018-11-05 | 2019-01-11 | 惠科股份有限公司 | A kind of driving method of display panel, driving device and display device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112783460A (en) * | 2021-01-26 | 2021-05-11 | 维沃移动通信有限公司 | Display control method and device, electronic equipment and readable storage medium |
| CN113611249A (en) * | 2021-07-29 | 2021-11-05 | 新相微电子(上海)有限公司 | Method and system for reducing IR-drop influence of AMOLED panel |
| CN114038371A (en) * | 2021-11-17 | 2022-02-11 | Tcl华星光电技术有限公司 | Gamma adjustment method, related device and storage medium |
| CN114038371B (en) * | 2021-11-17 | 2023-12-29 | Tcl华星光电技术有限公司 | Gamma adjustment method, related device and storage medium |
| CN115206224A (en) * | 2022-07-25 | 2022-10-18 | 武汉天马微电子有限公司 | Brightness adjusting method, device, equipment, medium, display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112071267B (en) | 2021-07-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112071267B (en) | Brightness adjusting method, brightness adjusting device, terminal equipment and storage medium | |
| CN111654594B (en) | Image capturing method, image capturing apparatus, mobile terminal, and storage medium | |
| CN107293265B (en) | Display screen picture adjusting method, display terminal and readable storage medium | |
| US10643549B1 (en) | Display with adjustable direct-lit backlight units | |
| US10964275B2 (en) | Displays with adjustable direct-lit backlight units and adaptive processing | |
| Lin et al. | Catch your attention: Quality-retaining power saving on mobile OLED displays | |
| US10571744B1 (en) | Displays with adjustable direct-lit backlight units and power consumption compensation | |
| KR20120042004A (en) | Image processing device, image processing method and flat panel display | |
| KR102046220B1 (en) | Apparatus and method for display visibility enhancement | |
| CN109740519B (en) | Control method and electronic device | |
| Chang et al. | SSIM-based quality-on-demand energy-saving schemes for OLED displays | |
| CN114119432A (en) | Image processing method, image processing device, electronic equipment and storage medium | |
| CN110618852B (en) | View processing method, view processing device and terminal equipment | |
| CN112750086A (en) | Image processing method and device, electronic equipment and storage medium | |
| CN114119431A (en) | Image processing method, image processing device, electronic equipment and storage medium | |
| EP2733692A1 (en) | Electronic device and method for enhancing readibility of an image thereof | |
| WO2020155072A1 (en) | Mixed layer processing method and apparatus | |
| US8768091B2 (en) | Method for generating sketch image and display apparatus applying the same | |
| Peng et al. | Histogram shrinking for power-saving contrast enhancement | |
| CN111861965A (en) | Image backlight detection method, image backlight detection device and terminal equipment | |
| CN114495812B (en) | Display panel brightness compensation method and device, electronic equipment and readable storage medium | |
| CN115775541A (en) | Backlight compensation method and device of display screen, chip and terminal | |
| CN112992052B (en) | Power consumption control method of display panel and display panel | |
| KR20160039091A (en) | Method of processing image data and display system for display power reduction | |
| CN109410873B (en) | Driving method and system and display device |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |