CN112309321B - Display control method and device and storage medium - Google Patents

Display control method and device and storage medium Download PDF

Info

Publication number
CN112309321B
CN112309321B CN201910673250.4A CN201910673250A CN112309321B CN 112309321 B CN112309321 B CN 112309321B CN 201910673250 A CN201910673250 A CN 201910673250A CN 112309321 B CN112309321 B CN 112309321B
Authority
CN
China
Prior art keywords
display
brightness
display object
module
target
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.)
Active
Application number
CN201910673250.4A
Other languages
Chinese (zh)
Other versions
CN112309321A (en
Inventor
杨凯
翟东
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.)
Beijing Xiaomi Mobile Software Co Ltd
Original Assignee
Beijing Xiaomi Mobile Software 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 Beijing Xiaomi Mobile Software Co Ltd filed Critical Beijing Xiaomi Mobile Software Co Ltd
Priority to CN201910673250.4A priority Critical patent/CN112309321B/en
Publication of CN112309321A publication Critical patent/CN112309321A/en
Application granted granted Critical
Publication of CN112309321B publication Critical patent/CN112309321B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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]
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
    • Y02B20/30—Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The disclosure relates to a display control method and device, and a storage medium, wherein the method comprises the following steps: determining whether the target brightness is equal to a predetermined brightness, wherein the predetermined brightness is a display brightness that the display component can achieve based on the dimming mode; when the target brightness is not equal to the preset brightness, converting a first display object to be displayed into a second display object according to the target brightness and the preset brightness, wherein the display contents of the first display object and the second display object are the same; the display component adjusts the light to a preset brightness based on the dimming mode and displays a second display object, wherein the display component displays the visual brightness of the first display object at the preset brightness, and the visual brightness of the second display object is different from the visual brightness of the first display object displayed by the display component at the preset brightness. Through this disclosed technical scheme, when display module assembly can't reach the target luminance under appointed mode of adjusting luminance, then adjust luminance with display module assembly can reach luminance to show the object after the conversion, thereby reach the corresponding visual effect of target luminance.

Description

Display control method and device and storage medium
Technical Field
The present disclosure relates to display technologies, and in particular, to a display control method and apparatus, and a storage medium.
Background
The Display screen needs different Display brightness under different use environments, and the Display brightness of an LCD (Liquid Crystal Display) can be adjusted by directly adjusting the brightness of backlight; for an OLED (Organic Light-Emitting Diode) display without a backlight, the display brightness needs to be adjusted by adjusting the Light-Emitting intensity of the Light-Emitting Diode.
In the related art, two methods for adjusting the brightness of pixels in a display screen mainly include: DC (Direct Current) dimming and PWM (Pulse Width Modulation) dimming. DC dimming can achieve an eye-protecting effect because of the absence of high-frequency flicker, but this method is only suitable for high-luminance display screens, and Mura (uneven screen color) is likely to occur in low-luminance display screens. PWM dimming can solve the problem of non-uniform picture and is easy to control by a driving circuit, but it is difficult to meet the requirement of eye protection by using a high frequency ac signal.
In the related art, two dimming modes are combined to dim the display screen, so as to ensure the color uniformity of the displayed picture as much as possible and protect the eyes of the user. However, if two dimming modes need to be supported, the display screen needs to be configured with driving circuits corresponding to the two dimming modes, and thus, the driving structure of the display screen is complex and the hardware cost is high.
Disclosure of Invention
The disclosure provides a display control method and device and a storage medium.
According to a first aspect of embodiments of the present disclosure, there is provided a display control method including:
determining whether the target brightness is equal to a predetermined brightness, wherein the predetermined brightness is a display brightness that the display component can achieve based on the dimming mode;
when the target brightness is not equal to the preset brightness, converting a first display object to be displayed into a second display object according to the target brightness and the preset brightness, wherein the display contents of the first display object and the second display object are the same;
the display component is used for dimming to the preset brightness based on the dimming mode and displaying the second display object, wherein the display component displays the visual brightness of the first display object at the preset brightness, and the visual brightness of the second display object is different from the visual brightness of the first display object displayed by the display component at the preset brightness.
In the foregoing solution, when the target brightness is not equal to the predetermined brightness, converting a first display object to be displayed into a second display object according to the target brightness and the predetermined brightness, includes:
when the target brightness is not equal to the preset brightness, determining a conversion coefficient according to the target brightness and the preset brightness;
and converting the first display object into a second display object according to the conversion coefficient.
In the foregoing solution, the converting the first display object into the second display object according to the conversion coefficient includes:
determining first display data corresponding to the first display object;
determining second display data according to the conversion coefficient and the first display data;
and determining the second display object according to the second display data.
In the above scheme, the first display data and the second display data are display data in a first grayscale mode; the display component is used for dimming to the preset brightness based on the dimming mode and displaying the second display object, and comprises:
determining output display data in a second gray scale mode according to the second display data; the total gray scale number in the first gray scale mode is higher than that in the second gray scale mode;
according to the output display data, providing corresponding driving voltage based on the dimming mode;
and the display component displays the second display object according to the driving voltage.
In the foregoing solution, converting the first display object into a second display object according to the conversion coefficient includes:
generating a masking layer according to the conversion coefficient;
and overlapping the masking layer with the first display object to obtain the second display object.
In the above solution, the determining whether the target brightness is equal to the predetermined brightness of the display component includes:
acquiring an instruction carrying a target brightness voltage; the target brightness voltage corresponds to the target brightness;
determining whether the target brightness is equal to the preset brightness of the display assembly according to the target brightness voltage and the preset brightness voltage of the display assembly; wherein the predetermined luminance voltage corresponds to the predetermined luminance.
In the above aspect, the method further includes:
when the target brightness is equal to the preset brightness, the display component adjusts the light to the target brightness based on the dimming mode, and displays the first display object.
According to a second aspect of the embodiments of the present disclosure, there is provided a display control apparatus including:
the device comprises a judging module, a processing module and a display module, wherein the judging module is used for determining whether target brightness is equal to preset brightness, and the preset brightness is display brightness which can be realized by a display component based on a dimming mode;
the conversion module is used for converting a first display object to be displayed into a second display object according to the target brightness and the preset brightness when the target brightness is not equal to the preset brightness, wherein the display contents of the first display object and the second display object are the same;
and the first display module is used for dimming to the preset brightness based on the dimming mode and displaying the second display object, wherein the display module displays the visual brightness of the first display object at the preset brightness, and is different from the visual brightness of the second display object at the preset brightness.
In the above solution, the conversion module includes:
the first determining sub-module is used for determining a conversion coefficient according to the target brightness and the preset brightness when the target brightness is not equal to the preset brightness;
and the conversion sub-module is used for converting the first display object into a second display object according to the conversion coefficient.
In the foregoing solution, the conversion sub-module includes:
the second determining submodule is used for determining first display data corresponding to the first display object;
the third determining submodule is used for determining second display data according to the conversion coefficient and the first display data;
and the fourth determining submodule is used for determining the second display object according to the second display data.
In the above scheme, the first display data and the second display data are display data in a first grayscale mode; the first display module includes:
a fifth determining submodule, configured to determine output display data in a second gray scale mode according to the second display data; the total gray scale number in the first gray scale mode is higher than that in the second gray scale mode;
the driving submodule is used for providing corresponding driving voltage based on the dimming mode according to the output display data;
and the display sub-module is used for displaying the second display object by the display component according to the driving voltage.
In the above scheme, the conversion sub-module includes:
the generation submodule is used for generating a masking layer according to the conversion coefficient;
and the superposition submodule is used for superposing the mask layer and the first display object to obtain the second display object.
In the foregoing solution, the determining module includes:
the acquisition submodule is used for acquiring an instruction carrying the target brightness voltage; the target brightness voltage corresponds to the target brightness;
a sixth determining sub-module for determining whether the target brightness is equal to the predetermined brightness of the display module according to the target brightness voltage and the predetermined brightness voltage of the display module; wherein the predetermined luminance voltage corresponds to the predetermined luminance.
In the above solution, the apparatus further comprises:
and the second display module is used for dimming the display component to the target brightness based on the dimming mode and displaying the first display object when the target brightness is equal to the preset brightness.
According to a third aspect of the embodiments of the present disclosure, there is provided a display control apparatus including at least: a processor and a memory for storing executable instructions operable on the processor, wherein:
the processor is configured to execute the executable instructions, and the executable instructions perform the steps of any one of the display control methods.
According to a second aspect of embodiments of the present disclosure, there is provided a non-transitory computer-readable storage medium having stored therein computer-executable instructions that, when executed by a processor, implement the steps in any one of the above display control methods.
The technical scheme provided by the embodiment of the disclosure can have the following beneficial effects: according to the technical scheme, when the display assembly cannot display the display object with the expected dimming mode, the display object is converted, so that the display assembly can display the display object corresponding to the target brightness through the dimming mode, the requirement of eye protection can be met while the color of a picture can be guaranteed in the dimming mode, extra cost caused by setting different dimming modes is reduced, and the complexity of the structure is reduced.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is an equivalent schematic diagram of a display cell circuit in an OLED display screen according to one exemplary embodiment;
FIG. 2 is a flow chart illustrating an implementation of a display control method according to an exemplary embodiment;
FIG. 3 is a flow chart illustrating another implementation of a display control method according to an exemplary embodiment;
FIG. 4 is a flow chart illustrating an implementation of yet another display control method according to an exemplary embodiment;
FIG. 5 is a schematic diagram illustrating a principle of switching a dimming mode of an OLED display screen according to an exemplary embodiment;
FIG. 6 is a flow chart illustrating an implementation of yet another display control method according to an exemplary embodiment;
FIG. 7 is a flowchart illustrating image mapping according to an exemplary embodiment;
FIG. 8 is a schematic diagram illustrating the components of a display control apparatus according to an exemplary embodiment;
FIG. 9 is a schematic diagram illustrating a component structure of another display control apparatus according to an exemplary embodiment;
fig. 10 is a schematic diagram showing a configuration of a further display control apparatus according to an exemplary embodiment;
fig. 11 is a block diagram illustrating a physical structure of another display control apparatus according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Unlike LCDs, OLEDs (displays without backlights, each pixel of which is implemented by a light emitting transistor, and different images can be displayed by controlling the brightness of each light emitting transistor, fig. 1 is an equivalent schematic diagram of a display unit circuit in an OLED display screen, as shown in fig. 1, an OLED is a light emitting element of the pixel, and the brightness value of the pixel can be controlled by controlling a current signal flowing through the OLED, and a plurality of OLEDs emit light at different brightnesses to form a displayed image.
The overall brightness of the OLED display screen can be adjusted mainly in the following two ways:
first, DC dimming mode.
In fig. 1, the switch T1 is used as a switch of the scan line S1 at the current pixel, and when the scan line S1 provides an on signal, the scan switch T1 is turned on, and the row of the current pixel in the pixel array is turned on. At this time, the data signal provided by the data line D1 can be transmitted to the driving switch T2, and the driving switch T2 is turned on to an extent corresponding to the amplitude of the data signal under the action of the capacitor C and the data signal provided by the data line D1. The voltage Vdd supplied by the power line P1 is unchanged, and when the driving switch T2 is turned on to a certain degree, a corresponding amount of current is passed through the driving switch, and the OLED is driven to emit light with a corresponding brightness. In this process, Emission (light Emission control electrode), i.e., the input signal of the control electrode Em of the switching luminance switch T3 is not changed, and the luminance switch T3 is always kept on.
In this process, the brightness of each pixel in the OLED display panel is controlled by the data signal provided by the data line D1. When the scan line scans the pixels of each row, the data signal needs to change the voltage amplitude according to the brightness required by each pixel.
Second, PWM dimming mode.
In this mode, the signal provided by the data line D1 in fig. 1 is unchanged, and during the period of time when the scan line S1 provides the on signal, the scan switch T1 is turned on to transmit the data signal to the driving switch T2, so that the driving switch T2 is turned on, and the voltage Vdd provided by the power line P1 remains unchanged. In this process, the turn-on degree of the driving switch T2 of all the pixels is the same, and therefore, the turn-on state of the brightness switch T3 needs to be controlled to adjust the brightness of the OLED in the pixel.
Here, the adjustment method is to control the switching of the current path by the PWM signal input from Em. The PWM signal is an ac signal with a certain frequency and duty ratio provided according to the brightness requirement of the pixel, and because the frequency of the PWM signal is much higher than the resolving power of human eyes, the brightness of the pixel can change along with the change of the duty ratio of the PWM signal in visual effect. For example, when the duty ratio of the PWM signal is 100%, that is, a constant dc signal, the OLED is always on the path through which current passes, and the OLED is brightest, and when the PWM signal controls the brightness switch T3 with a high frequency signal having a duty ratio of 50%, the OLED is on the path through which current passes 50% of the time, and no current passes the other 50% of the time, so that the brightness of the pixel is visually reduced by half.
For the PWM dimming mode, a 4-cycle dimming mode is usually adopted, i.e. the period of the PWM signal is 4 times the refresh frequency. The normal refresh frequency is set to 60Hz, and the frequency of the PWM signal is 240 Hz. And to the display screen of eyeshield demand, then require flicker frequency to reach 3000Hz, consequently, the demand of eyeshield is difficult to satisfy to the PWM mode of adjusting luminance, can bring great scintillation problem, causes the visual experience variation of screen.
However, the DC dimming mode is difficult to be implemented in a low-luminance screen, and the DC dimming requires a precise voltage value to be provided for each pixel to correspond to a required luminance, and requires a completely uniform voltage value to be provided for pixels having the same luminance. However, it is technically difficult to achieve perfect agreement, and there must be some error in the voltage values provided to the pixels. In a low-luminance picture, the picture unevenness caused by such an error becomes very noticeable. Therefore, the PWM dimming mode is generally used in a low-luminance screen, and the DC dimming mode is used in a high-luminance screen.
According to an embodiment provided by the present disclosure, when a low-brightness picture needs to be displayed, the picture is first adjusted to a brightness that enables a DC dimming mode to be used, and then the brightness of the picture is reduced through image processing, so that the low-brightness picture is displayed in the DC dimming mode.
In another embodiment, there is provided a display control method, as shown in fig. 2, the method including:
step 101, determining whether the target brightness is equal to a predetermined brightness, wherein the predetermined brightness is a display brightness which can be realized by the display component based on the dimming mode;
step 102, when the target brightness is not equal to the preset brightness, converting a first display object to be displayed into a second display object according to the target brightness and the preset brightness, wherein the display contents of the first display object and the second display object are the same;
step 103, the display module adjusts the light to a predetermined brightness based on the dimming mode, and displays the second display object, wherein the display module displays the visual brightness of the first display object at the predetermined brightness, which is different from the visual brightness of the second display object at the predetermined brightness.
Here, the target brightness is determined based on a picture to be displayed, for example, the display system receives an instruction to display a picture and receives data related to the picture. The data related to the screen includes data for determining the screen brightness. From this data, a comparison with a predetermined brightness specified by the system can be made to determine whether the current display assembly can be dimmed in the specified dimming mode and reach that brightness.
The display object comprises received image data of at least one frame of image, the display object represents the display content of one image, namely the presented picture, the characteristic parameters contained in the display object comprise the color, the gray scale and the brightness of pixels at different positions, the contrast and the image saturation of the image and the like, and the display content is different when different display objects present different pictures. The display contents of the first display object and the second display object are the same, but the brightness of the whole image is different, or the characteristic parameters are different, so that the presented visual brightness is different.
The display brightness is a brightness parameter of a display screen controlled according to an electric signal provided by the display device, and for example, by adjusting parameters such as a voltage or power provided by a corresponding dimming mode, a corresponding display brightness can be obtained, thereby displaying a display object with a corresponding visual brightness. Visual brightness is the brightness parameter that human eyes can detect the presented picture, i.e. the brightness degree of the picture, and the unit is candela per square meter (cd/m)2) Or nits (nits).
The predetermined brightness is a range of display brightness designated according to characteristics of the display module, and when the target brightness is not equal to the predetermined brightness, the display module cannot achieve the target brightness through the designated dimming mode, or the target brightness achieved through the designated dimming mode may affect a display effect or generate other adverse effects such as color unevenness and flicker. Therefore, the display object needs to be adjusted to convert the first display object into the second display object, so as to reduce the adverse effect.
The dimming mode in step 101 may be a single dimming mode, for example, the single dimming mode may be the aforementioned DC dimming mode, and the implementation is not limited to the DC dimming mode, and may also be other dimming modes besides the DC dimming mode. By switching the display object in steps 102 and 103 in this manner, the problem of low display brightness that cannot be provided by the DC dimming mode can be solved.
If the single dimming mode is the PWM dimming mode, switching of the continuous adjustment frequency in the PWM dimming mode can be reduced, and a flicker phenomenon caused when the driving pulse has a high duty ratio in the PWM dimming mode can also be reduced.
Since the dimming modes of the display module are different, the corresponding applicable brightness ranges may be different, and therefore, the predetermined brightness here may be the brightness value provided by the dimming mode in the embodiment. It should be noted that the preset brightness is a set of a plurality of brightness values, the preset brightness includes a maximum brightness and a minimum brightness, and if the target brightness is lower than the minimum brightness or greater than the maximum brightness, the target brightness is considered not equal to the preset brightness.
When the target brightness is not equal to the predetermined brightness, it is indicated that the target brightness is not suitable for the current dimming mode, in this embodiment, a display object (for example, a text and/or an image) needs to be converted, and the target display brightness is displayed through conversion of display pixels of the display object in combination with the dimming mode and the conversion of the display object.
When converting an image, the brightness of the display object is actually adjusted by applying a method other than dimming mode dimming, for example, adjusting the gamma value of the image or adding a mask layer, and the display object is converted by a non-hardware method (for example, software calculation or firmware conversion), so as to change the display brightness and achieve the desired display effect.
By the method, when the target brightness cannot be realized in the dimming mode, the adjustment can be realized by converting the display object, so that the dimming can be realized by using the expected dimming mode, and the final display effect can be ensured.
In some embodiments, the converting the first display object to be displayed into the second display object according to the target brightness and the predetermined brightness when the target brightness is not equal to the predetermined brightness includes:
step 11, when the target brightness is not equal to the preset brightness, determining a conversion coefficient according to the target brightness and the preset brightness;
and 12, converting the first display object into a second display object according to the conversion coefficient.
Since the above-described conversion of the display object does not actually involve a change in the display content but an adjustment of the display luminance, the conversion coefficient may be determined in accordance with the correspondence relationship between the target luminance and the predetermined luminance, and then the adjustment may be performed by the conversion coefficient. For example, the conversion coefficient is determined based on the corresponding proportional change relationship of the target luminance and the predetermined luminance. Then multiplying the first display object by a conversion coefficient to realize adjustment; or the adjustment is realized in a mode of overlapping the masking layer according to the conversion coefficient.
In this way, the difference between the final display effect and the effect that is originally intended to be displayed can be reduced as much as possible based on the target brightness.
In some embodiments, the determining whether the target brightness is equal to the predetermined brightness of the display component comprises:
step 21, acquiring an instruction carrying a target brightness voltage; the target luminance voltage corresponds to a target luminance;
step 22, determining whether the target brightness is equal to the preset brightness of the display component according to the target brightness voltage and the preset brightness voltage of the display component; wherein the predetermined luminance voltage corresponds to a predetermined luminance.
When the display device processes the acquired target object to be displayed, the data corresponding to the target brightness may be represented by a signal such as a corresponding voltage. Therefore, when an instruction carrying a target luminance voltage, that is, a voltage signal corresponding to the target luminance is acquired, the target luminance voltage may be compared with a predetermined luminance voltage corresponding to the predetermined luminance according to the target luminance voltage, thereby determining whether the target luminance is equal to the predetermined luminance.
The comparison of the voltage signals can enable the operation system to more conveniently perform operation processing and quickly determine the range of the target brightness.
In some embodiments, the method further comprises:
and step 31, when the target brightness is equal to the preset brightness, the display component adjusts the light to the target brightness based on the dimming mode, and displays the first display object.
When the target luminance is equal to the predetermined luminance, it can also be understood that when the target luminance falls within the range of the predetermined luminance, the current dimming mode can directly display the display object having the target luminance. Therefore, the display object does not need to be converted, and the display can be directly performed.
An embodiment of the present application provides another display control method, as shown in fig. 3, the method includes:
step 201, determining whether the target brightness is equal to a predetermined brightness, wherein the predetermined brightness is a display brightness which can be realized by the display component based on the dimming mode;
step 202, when the target brightness is not equal to the preset brightness, determining a conversion coefficient according to the target brightness and the preset brightness;
step 203, determining first display data corresponding to the first display object;
step 204, determining second display data according to the conversion coefficient and the first display data;
step 205, determining a second display object according to the second display data; the display contents of the first display object and the second display object are the same;
step 206, the display module dims to a predetermined brightness based on the dimming mode to display the second display object, wherein the display module displays the visual brightness of the first display object at the predetermined brightness, which is different from the visual brightness of the second display object at the predetermined brightness.
The above steps 203 to 205 provide one implementation manner of converting the first display object based on the conversion coefficient in the above step 12.
The first display data and the second display data differ in that: the first display data and the second display data have different corresponding display brightness.
The first display data corresponding to the first display object is used for performing operation processing on the first display object, and the first display data embodies information such as content and brightness of the first display object in a data form. For example, the pixel value of each pixel in the screen displayed by the first display object. The first display data is processed according to the conversion coefficient, for example, the first display object is multiplied by the conversion coefficient, thereby obtaining second display data. In this way, by means of data processing, the first display object is converted into the second display object through the conversion coefficient.
In some embodiments, the first display data and the second display data are display data in a first gray scale mode; the display module adjusts the light to a predetermined brightness based on the dimming mode, and displays a second display object, including:
step 41, determining output display data in a second gray scale mode according to the second display data; the total gray scale number in the first gray scale mode is higher than that in the second gray scale mode;
step 42, providing a corresponding driving voltage based on the dimming mode according to the second display data;
and 43, displaying the second display object by the display component according to the driving voltage.
When the display module is controlled to display, in order to reduce the data amount, a second gray scale mode with a lower bit number may be used for control, for example, an 8-bit mode. The first display data and the second display data are used for converting the display object, and in order to ensure the accuracy of the operation, the first display data and the second display data can be both expressed by a first gray scale mode with a higher bit number. For example, in the 10-bit gray scale mode, the gray scale value of the corresponding display data ranges from 0 to 1023. It is understood that the maximum luminance value to the minimum luminance value for the display component is divided into 1024 equal parts. In contrast, in the 8-bit mode, the gray scale level accuracy corresponding to different luminance requirements is lower than that in the 10-bit mode, in which the maximum luminance value to the minimum luminance value of the display device is divided into 256 equal parts.
Therefore, with the scheme in this embodiment, the first gray scale mode is adopted to perform the operation with higher accuracy, and then the second display data to be displayed can be converted back to the second gray scale mode with lower bit number for driving and displaying.
The total number of gray scales corresponding to the second gray scale mode may be: the number of gray scales that the display can realize in the dimming mode; for example, the maximum number of gray levels that the display can achieve in the dimming mode.
An embodiment of the present disclosure provides another display control method, as shown in fig. 4, the method includes:
step 301, determining whether the target brightness is equal to a predetermined brightness, wherein the predetermined brightness is a display brightness that can be realized by the display component based on the dimming mode;
step 302, when the target brightness is not equal to the preset brightness, determining a conversion coefficient according to the target brightness and the preset brightness;
step 303, generating a cover layer according to the conversion coefficient;
step 304, overlapping the cover layer with the first display object to obtain a second display object, wherein the display contents of the first display object and the second display object are the same;
step 305, the display module adjusts the light to a predetermined brightness based on the dimming mode, and displays the second display object, wherein the display module displays the visual brightness of the first display object at the predetermined brightness, which is different from the visual brightness of the second display object at the predetermined brightness.
Here, another way of converting the first display object into the second display object according to the conversion coefficient is provided. This may be achieved by some software tools, such as a GPU drawing tool. The masking layer is directly generated according to the conversion coefficient, where the masking layer may be a superimposed layer with a certain transparency, and the lower the transparency is, the lower the image brightness of the superimposed masking layer is, and therefore, the transparency of the image masking layer herein may be determined by the conversion coefficient, and different conversion coefficients correspond to masking layers with different transparencies. Then, the first display object is overlaid with the covering layer, and the visual brightness of the display is adjusted in the display process, so that the difference between the final display brightness and the expected display brightness is reduced as much as possible.
The embodiment of the present disclosure provides a display control method, which is based on a product with a fixed dimming mode in the related art, and performs dimming through a DC dimming mode even when a low-brightness image needs to be displayed through adjustment of an external signal.
In a product with a fixed dimming mode in the related art, when a high-brightness picture needs to be displayed, the brightness of a pixel is adjusted by adjusting the voltage or current of a direct current Source (a control Source), namely, DC dimming; and when a low-brightness picture needs to be displayed, PWM dimming is adopted. As shown in fig. 5, the threshold parameter for switching the dimming mode is typically defined as DBV equal to a, DBV being the voltage parameter: decibel volt is used for representing the driving voltage value corresponding to the picture brightness. When the DBV is larger than or equal to a, DC dimming is adopted; when the DBV is less than a, PWM dimming is employed.
The dimming mode is fixed for the finished product, because the dimming mode is formed by burning when the control module of the product is produced. After the production of the product is finished, in order to ensure the optical performance of the product, the adjustment cannot be performed by writing codes under software or adjusting the gamma value. The gamma value here refers to the relationship between the screen brightness and the input voltage.
According to the embodiment of the disclosure, after the product module is produced, the DC dimming mode is adopted in the process of changing the image displayed by the OLED product from the darkest to the brightest in a system end adjusting mode, and the product with the PWM dimming mode and the DC dimming mode is compatible.
Fig. 6 is a schematic flow chart illustrating an implementation process of a method for controlling display control according to an embodiment of the present disclosure, and as shown in fig. 6, the method includes:
and S1, reading a dimming mode switching threshold of the display screen, wherein the threshold is a DBV value when the PWM dimming mode and the DC dimming mode are switched, and is defined as a.
And S2, when the ambient light changes or the user is detected to drag the brightness bar, reading the DBV value required by the current system, wherein the DBV value is defined as b.
S3, judging the relation between the DBV value b required by the current system and the threshold a;
when b is greater than or equal to a, the brightness b of the picture to be displayed by the display screen is in the interval of the DC dimming mode, and the step is S4;
when b is smaller than a, the brightness b of the picture to be displayed by the display screen is in the interval of the PWM dimming mode, and the process proceeds to S5.
S4, the processor directly outputs the current rendered image IM1, and the current rendered image IM is displayed on the display screen to complete the display of the current image.
S5, adjusting the DBV value of the current system to a, wherein the corresponding rendered image is IM 1; then, remapping the current rendered image IM1 to obtain an image IM2 with reduced brightness; the IM2 is displayed on the display screen to complete the display of the current image.
Fig. 7 is a schematic flow chart of the image mapping in S5, in which the conversion coefficient of the system is first calculated, and the calculation method adopts luminance calculation. The current image data is remapped firstly, and because the bit number of the 8-bit data is less, precision loss is easily caused in the calculation, the data is mapped to the 10-bit data for calculation, and the calculation precision is ensured. The calculation steps are as follows:
and S51, calculating the brightness value Lv0 (b/DBV _ Level) Lv _ Max required by the system at present, wherein DBV _ Level is the brightness Level corresponding to the DBV, LV _ Max is the maximum brightness Level which can be reached by the display module, and calculating the brightness Lv0 required by the system.
S52, calculating the mapped required gray scale, wherein the calculation method comprises the following steps: (GL/1024) ^2.2) ^ Lv _ a ═ Lv 0. Wherein, Lv _ a is the brightness level corresponding to the DBV threshold, and GL is the gray scale to be mapped currently.
S53, calculating a conversion coefficient, i is GL/1024;
s54, converting the image according to the conversion coefficient, wherein the conversion method is to calculate the image data: IM2 is IM1 i.
After the calculation is completed, the resulting image data of the IM2 is then converted from 10 bits back to 8 bits to produce the final output image.
In the step 54, the image data may be reconverted in a variety of ways, the first way is to use a PCC (programmable computer controller) tool to multiply different data of each RGB pixel by a conversion coefficient i, so as to realize data conversion, and the second way may be to use a GPU (Graphics Processing Unit) to draw a picture, and to add a mask layer, so that the coefficient of the whole mask layer is i, thereby realizing the effect of reducing the luminance data of the whole image to the required luminance data.
This results in a reduced gray scale resolution of the system after image remapping, with lower brightness and greater gray scale loss. In order to ensure the final display effect of the system, algorithms for resolution adjustment, such as a dither algorithm, can be adopted to improve the gray scale resolution of the system, so as to ensure that the system can more accurately display the gray scale resolution.
By the method, under the condition that the display module finishes production, through later-stage algorithm processing, the whole-process DC dimming is realized, the eye protection effect and the display effect are ensured, and the gray scale resolution is improved. The method can be compatible with the display module with two modes of DC dimming and PWM dimming, meets different display requirements, and improves the display effect.
An embodiment of the present disclosure provides a display control apparatus, as shown in fig. 8, the apparatus 800 includes:
a determining module 810, configured to determine whether the target brightness is equal to a predetermined brightness, where the predetermined brightness is a display brightness that can be achieved by the display component based on the dimming mode;
a conversion module 820, configured to convert a first display object to be displayed into a second display object according to the target brightness and the predetermined brightness when the target brightness is not equal to the predetermined brightness, where display contents of the first display object and the second display object are the same;
the first display module 830 is configured to dim the light to a predetermined brightness based on the dimming mode and display the second display object, wherein the display module displays the visual brightness of the first display object at the predetermined brightness, which is different from the visual brightness of the second display object at the predetermined brightness.
In some embodiments, the converting module 820 includes:
the first determining submodule is used for determining a conversion coefficient according to the target brightness and the preset brightness when the target brightness is not equal to the preset brightness;
and the conversion sub-module is used for converting the first display object into the second display object according to the conversion coefficient.
In some embodiments, the determining module 810 includes:
the acquisition submodule is used for acquiring an instruction carrying target brightness voltage; the target luminance voltage corresponds to a target luminance;
a sixth determining sub-module for determining whether the target luminance is equal to the predetermined luminance of the display module based on the target luminance voltage and the predetermined luminance voltage of the display module; wherein the predetermined luminance voltage corresponds to a predetermined luminance.
In some embodiments, the apparatus 800 further comprises:
and the second display module is used for dimming to the target brightness based on the dimming mode when the target brightness is equal to the preset brightness, and displaying the first display object.
An embodiment of the present disclosure provides a display control apparatus, as shown in fig. 9, the apparatus 900 including: a judging module 810, a converting module 820 and a first display module 830. The converting module 820 includes: the first determination submodule 821, the conversion submodule 822,
the conversion submodule 822 includes:
a second determining submodule 901, configured to determine first display data corresponding to the first display object;
a third determining submodule 902, configured to determine second display data according to the conversion coefficient and the first display data;
the fourth determining sub-module 903 is configured to determine a second display object according to the second display data.
In some embodiments, the first display data and the second display data are display data in a first gray scale mode; the first display module 830 includes:
a fifth determining sub-module 904, configured to determine output display data in the second gray scale mode according to the second display data; the total gray scale number in the first gray scale mode is higher than that in the second gray scale mode;
a driving sub-module 905 configured to provide a corresponding driving voltage according to the second display data based on the dimming mode;
and the display submodule 906 is used for displaying the second display object by the display component according to the driving voltage.
An embodiment of the present disclosure provides a display control apparatus, as shown in fig. 10, the apparatus 1000 including: a judging module 810, a converting module 820 and a first display module 830. The conversion module comprises: a first determination submodule 821 and a conversion submodule 822.
The conversion submodule 822 includes:
a generation submodule 1001 configured to generate a mask layer according to the conversion coefficient;
the overlay sub-module 1002 is configured to overlay the mask layer with the first display object to obtain a second display object.
With regard to the apparatus in the above-described embodiment, the specific manner in which each module performs the operation has been described in detail in the embodiment related to the method, and will not be elaborated here.
Fig. 11 is a block diagram illustrating a display control apparatus 1100 according to an exemplary embodiment. For example, the apparatus 1100 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a gaming console, a tablet device, a medical device, an exercise device, a personal digital assistant, and so forth.
Referring to fig. 11, apparatus 1100 may include one or more of the following components: processing component 1101, memory 1102, power component 1103, multimedia component 1104, audio component 1105, input/output (I/O) interface 1106, sensor component 1107, and communications component 1108.
The memory 1102 is used to store executable instructions that can be executed on the processor 1110; wherein the content of the first and second substances,
when the processor 1110 is configured to execute the executable instructions, the executable instructions perform the steps of the method for controlling display brightness provided in any one of the method embodiments described above.
The processing component 1101 generally controls the overall operation of the device 1100, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 1101 may include one or more processors 1110 to execute instructions to perform all or part of the steps of the methods described above. Further, the processing component 1101 may also include one or more modules that facilitate interaction between the processing component 1101 and other components. For example, the processing component 1101 can include a multimedia module to facilitate interaction between the multimedia component 1104 and the processing component 1101.
The memory 1102 is configured to store various types of data to support operation at the device 1100. Examples of such data include instructions for any application or method operating on device 1100, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 1102 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.
The power supply component 1103 provides power to the various components of the device 1100. The power supply component 1103 may include: a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the device 1100.
The multimedia component 1104 includes a screen that provides an output interface between the device 1100 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 1104 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the device 1100 is in an operating mode, such as a shooting mode or a video mode. Each front camera and/or rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.
Audio component 1105 is configured to output and/or input audio signals. For example, audio component 1105 may include a Microphone (MIC) configured to receive external audio signals when apparatus 1100 is in an operational mode, such as a call mode, recording mode, and voice recognition mode. The received audio signals may further be stored in memory 1110 or transmitted via communications component 1108. In some embodiments, audio component 1105 further includes a speaker for outputting audio signals.
The I/O interface 1106 provides an interface between the processing component 1101 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.
Sensor component 1107 includes one or more sensors to provide various aspects of state estimation for device 1100. For example, sensor component 1107 may detect the open/closed state of device 1100, the relative positioning of components such as a display and keypad of device 1100, sensor component 1107 may also detect a change in the position of device 1100 or a component of device 1100, the presence or absence of user contact with device 1100, orientation or acceleration/deceleration of device 1100, and a change in the temperature of device 1100. Sensor assembly 1107 may include a proximity sensor configured to detect the presence of a nearby object in the absence of any physical contact. Sensor assembly 1107 may also include a photosensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor component 1107 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 1108 is configured to facilitate communications between the apparatus 1100 and other apparatuses in a wired or wireless manner. The apparatus 1100 may access a wireless network based on a communication standard, such as WiFi, 2G, or 3G, or a combination thereof. In an exemplary embodiment, the communication component 1108 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1108 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, or other technologies.
In an exemplary embodiment, the apparatus 1100 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.
In an exemplary embodiment, a non-transitory computer readable storage medium comprising instructions, such as the memory 1102 comprising instructions, executable by the processor 1110 of the apparatus 1100 to perform the method described above is also provided. For example, the non-transitory computer readable storage medium may be a ROM, a Random Access Memory (RAM), a CD-ROM, a magnetic tape, a floppy disk, an optical data storage device, and the like.
A non-transitory computer readable storage medium, wherein instructions of the storage medium, when executed by a processor of a mobile terminal, enable the mobile terminal to perform the display control method of any of the above embodiments. In one embodiment, the method comprises:
determining whether the target brightness is equal to a predetermined brightness, wherein the predetermined brightness is a display brightness that the display component can achieve based on the dimming mode;
when the target brightness is not equal to the preset brightness, converting a first display object to be displayed into a second display object according to the target brightness and the preset brightness, wherein the display contents of the first display object and the second display object are the same;
the display component is used for dimming to the preset brightness based on the dimming mode and displaying the second display object, wherein the display component displays the visual brightness of the first display object at the preset brightness, and the visual brightness of the second display object is different from the visual brightness of the first display object displayed by the display component at the preset brightness.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A display control method, comprising:
determining whether the target brightness is equal to a predetermined brightness, wherein the predetermined brightness is a display brightness that the display component can achieve based on the dimming mode;
when the target brightness is not equal to the preset brightness, determining a conversion coefficient according to the target brightness and the preset brightness;
converting a first display object to be displayed into a second display object according to the conversion coefficient, wherein the display contents of the first display object and the second display object are the same;
the display component is used for dimming to the preset brightness based on the dimming mode and displaying the second display object, wherein the display component displays the visual brightness of the first display object at the preset brightness, and the visual brightness of the second display object is different from the visual brightness of the display component at the preset brightness;
wherein the display component is dimmed to the predetermined brightness based on the dimming mode to display the second display object, comprising:
determining output display data in a second gray scale mode according to second display data corresponding to a second display object; the first display data and the second display data corresponding to the first display object are display data in a first gray scale mode; the total gray scale number in the first gray scale mode is higher than that in the second gray scale mode;
displaying the second display object according to the output display data;
the converting the first display object into a second display object according to the conversion coefficient includes:
determining first display data corresponding to the first display object;
determining second display data according to the conversion coefficient and the first display data;
and determining the second display object according to the second display data.
2. The control method according to claim 1, wherein displaying the second display object according to the output display data includes:
according to the output display data, providing corresponding driving voltage based on the dimming mode;
and the display component displays the second display object according to the driving voltage.
3. The control method of claim 1, wherein determining whether the target brightness is equal to a predetermined brightness of the display component comprises:
acquiring an instruction carrying a target brightness voltage; the target brightness voltage corresponds to the target brightness;
determining whether the target brightness is equal to the preset brightness of the display assembly according to the target brightness voltage and the preset brightness voltage of the display assembly; wherein the predetermined luminance voltage corresponds to the predetermined luminance.
4. The control method according to claim 1, characterized in that the method further comprises:
when the target brightness is equal to the preset brightness, the display component adjusts the light to the target brightness based on the dimming mode, and displays the first display object.
5. A display control apparatus, characterized by comprising:
the device comprises a judging module, a processing module and a display module, wherein the judging module is used for determining whether target brightness is equal to preset brightness, and the preset brightness is display brightness which can be realized by a display component based on a dimming mode;
the conversion module comprises a first determination sub-module, and the first determination sub-module is used for determining a conversion coefficient according to the target brightness and the preset brightness when the target brightness is not equal to the preset brightness;
the conversion module further comprises a conversion submodule, wherein the conversion submodule is used for converting a first display object to be displayed into a second display object according to the conversion coefficient, and the display contents of the first display object and the second display object are the same;
a first display module for displaying the second display object by dimming to the predetermined brightness based on the dimming mode, wherein the display module displays the visual brightness of the first display object at the predetermined brightness, which is different from the visual brightness of the second display object at the predetermined brightness;
wherein the first display module comprises:
a fifth determining submodule, configured to determine output display data in a second gray scale mode according to the second display data; the first display data and the second display data corresponding to the first display object are display data in a first gray scale mode; the total gray scale number in the first gray scale mode is higher than that in the second gray scale mode;
the driving submodule and the display submodule are used for displaying the second display object according to the output display data;
the conversion submodule includes:
the second determining submodule is used for determining first display data corresponding to the first display object;
the third determining submodule is used for determining second display data according to the conversion coefficient and the first display data;
and the fourth determining submodule is used for determining the second display object according to the second display data.
6. The control device of claim 5, wherein the driving sub-module is configured to provide a corresponding driving voltage based on the dimming mode according to the output display data;
and the display submodule is used for displaying the second display object by the display component according to the driving voltage.
7. The control device according to claim 5, wherein the judging module includes:
the acquisition submodule is used for acquiring an instruction carrying the target brightness voltage; the target brightness voltage corresponds to the target brightness;
a sixth determining sub-module for determining whether the target brightness is equal to a predetermined brightness of the display module according to the target brightness voltage and a predetermined brightness voltage of the display module; wherein the predetermined luminance voltage corresponds to the predetermined luminance.
8. The control device of claim 6, wherein the device further comprises:
and the second display module is used for dimming the display component to the target brightness based on the dimming mode when the target brightness is equal to the preset brightness, and displaying the first display object.
9. A display control apparatus, characterized in that the display control apparatus comprises at least: a processor and a memory for storing executable instructions operable on the processor, wherein:
the processor is configured to execute the executable instructions, and the executable instructions perform the steps of the display control method provided in any one of the preceding claims 1 to 4.
10. A non-transitory computer-readable storage medium having stored thereon computer-executable instructions that, when executed by a processor, implement the steps in the display control method provided in any one of claims 1 to 4.
CN201910673250.4A 2019-07-24 2019-07-24 Display control method and device and storage medium Active CN112309321B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910673250.4A CN112309321B (en) 2019-07-24 2019-07-24 Display control method and device and storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910673250.4A CN112309321B (en) 2019-07-24 2019-07-24 Display control method and device and storage medium

Publications (2)

Publication Number Publication Date
CN112309321A CN112309321A (en) 2021-02-02
CN112309321B true CN112309321B (en) 2022-07-08

Family

ID=74329725

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910673250.4A Active CN112309321B (en) 2019-07-24 2019-07-24 Display control method and device and storage medium

Country Status (1)

Country Link
CN (1) CN112309321B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114423119B (en) * 2021-12-29 2023-08-08 山东云海国创云计算装备产业创新中心有限公司 Gradual dimming method and gradual dimming system
CN117153075A (en) * 2022-05-30 2023-12-01 荣耀终端有限公司 Screen brightness adjusting method, electronic device and computer readable storage medium
WO2023240624A1 (en) * 2022-06-17 2023-12-21 北京小米移动软件有限公司 Brightness adjustment method, apparatus and storage medium

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103778894B (en) * 2012-10-23 2017-08-25 联想(北京)有限公司 Method for regulating brightness of display and device
CN108269530A (en) * 2016-09-27 2018-07-10 广东欧珀移动通信有限公司 The brightness adjusting method and Related product of AMOLED display screens
CN107123399A (en) * 2017-06-29 2017-09-01 厦门美图移动科技有限公司 The method of adjustment and mobile terminal of mobile terminal screen brightness
CN108510955A (en) * 2018-04-23 2018-09-07 Oppo广东移动通信有限公司 Adjust the method and Related product of brightness of display screen
CN109246405B (en) * 2018-11-01 2021-04-20 明基智能科技（上海）有限公司 Method and system for adjusting uniformity of image tone
CN110164366A (en) * 2019-04-22 2019-08-23 联想(北京)有限公司 A kind of information processing method, electronic equipment

Also Published As

Publication number Publication date
CN112309321A (en) 2021-02-02

Similar Documents

Publication Publication Date Title
CN110634434B (en) Driving method and driving device of display panel and display device
KR101779689B1 (en) Method, apparatus, program and recording medium for controlling backlight
US10665181B2 (en) Backlights with dynamic dimming ranges
JP4979776B2 (en) Image display device and image display method
TWI342002B (en) Apparatus and method for display backlight control
CN112309321B (en) Display control method and device and storage medium
EP3043340A1 (en) Display device and method for controlling brightness thereof
CN113257162B (en) Screen brightness adjusting method and device and storage medium
US9589499B2 (en) Display device having function of controlling luminance based on average picture level and luminance control method thereof
CN113450713B (en) Screen display method and device and gray scale mapping information generation method and device
CN109637437B (en) Image display control method, device, medium and display screen control system
KR20160068443A (en) Organic light emitting display device and method for controling the same
CN107665694B (en) Brightness adjusting method and system of display device
CN112242119A (en) Terminal, display parameter control method and device, and storage medium
KR20140071707A (en) Liquid crystal display device and method for driving the same
KR20160035192A (en) Display device and method of boosting luminance thereof
CN114639342A (en) Display panel brightness control method and device, display equipment and electronic equipment
CN113053312A (en) Dimming method and device of display panel
CN110853578B (en) Voltage compensation method and device
KR20150114065A (en) Gamma compensation method and display device using the same
CN114067733A (en) Display screen correction method, display screen correction device and display chip
CN113963671B (en) Display method, terminal and storage medium
US10777167B2 (en) Color image display adaptation to ambient light
CN111785207B (en) Method and device for adjusting brightness of OLED display screen and electronic equipment
CN113870795A (en) Pixel driving circuit, display screen assembly, display brightness control method and 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