CN111508403B - Method and device for determining gamma curve of display screen and electronic equipment - Google Patents
Method and device for determining gamma curve of display screen and electronic equipment Download PDFInfo
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- CN111508403B CN111508403B CN201910101170.1A CN201910101170A CN111508403B CN 111508403 B CN111508403 B CN 111508403B CN 201910101170 A CN201910101170 A CN 201910101170A CN 111508403 B CN111508403 B CN 111508403B
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- 229910003437 indium oxide Inorganic materials 0.000 description 2
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 2
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- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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- 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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
- G09G5/10—Intensity circuits
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- 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
- G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
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- Electroluminescent Light Sources (AREA)
Abstract
The disclosure relates to a method and a device for determining a gamma curve of a display screen and electronic equipment. A method of determining a gamma curve for a display screen, the display screen comprising a primary display area and a secondary display area; pixels in the auxiliary display area correspond to a first gamma curve; the method comprises the following steps: acquiring a first voltage range of a first gamma curve corresponding to the auxiliary display area; acquiring a second voltage range of a first gamma curve corresponding to the auxiliary display area; the second voltage range exceeds the first voltage range, and the first gamma curve, the first voltage range, and the second voltage range are used as final gamma curves corresponding to the secondary display area. In this embodiment, by increasing the voltage adjustment range of the gamma curve of the auxiliary display area, the same effect as that of the main display area can be achieved after the brightness of the auxiliary display area is attenuated, the display effect can be ensured, and the service life of the auxiliary display area is prolonged.
Description
Technical Field
The disclosure relates to the technical field of display, and in particular relates to a method and device for determining a gamma curve of a display screen, and electronic equipment.
Background
At present, a display screen of a part of electronic equipment can be divided into a main display area and an auxiliary display area, and a camera can be placed below the auxiliary display area, so that the camera can acquire images through the auxiliary display area, the auxiliary display area is required to have a display function and higher light transmittance in the scene, and the main display area and the auxiliary display area are required to have the same display effect.
However, due to the different luminous efficiency of the pixels in the main display area and the auxiliary display area, the service life of the pixels in the auxiliary display area is attenuated faster than that of the pixels in the main display area, and the service life of the display screen is further reduced.
Disclosure of Invention
The disclosure provides a method and a device for determining a gamma curve of a display screen and electronic equipment, so as to solve the defects of the related art.
According to a first aspect of embodiments of the present disclosure, there is provided a method of determining a gamma curve of a display screen, the display screen including a main display area and a sub display area; pixels in the auxiliary display area correspond to a first gamma curve; the method comprises the following steps:
Acquiring a first voltage range of a first gamma curve corresponding to the auxiliary display area;
acquiring a second voltage range of a first gamma curve corresponding to the auxiliary display area; the second voltage range exceeds the first voltage range.
Optionally, acquiring the second voltage range of the first gamma curve corresponding to the secondary display area includes:
After the auxiliary display area is covered with the polaroid, the brightness of the auxiliary display area and the brightness of the main display area are obtained;
Adjusting the brightness of the auxiliary display area until the brightness is the same as that of the main display area;
And acquiring a voltage range of a first gamma curve corresponding to the auxiliary display area when the brightness of the auxiliary display area is the same as that of the main display area, wherein the voltage range is a second voltage range.
Optionally, acquiring the second voltage range of the first gamma curve corresponding to the secondary display area includes:
acquiring the luminous efficiency of the auxiliary display area in a preset time period;
and determining a second voltage range of the first gamma curve according to the first voltage range and the luminous efficiency.
Optionally, the display screen further includes a transition display area located between the primary display area and the secondary display area; pixels in the transition display area correspond to a second gamma curve; the method further comprises the steps of:
acquiring a third voltage range of a second gamma curve corresponding to the transition display area;
Acquiring a fourth voltage range of a second gamma curve corresponding to the transition display area; the fourth voltage range exceeds the third voltage range.
Optionally, acquiring the fourth voltage range of the second gamma curve corresponding to the transition display area includes:
After the transition display area is covered with the polaroid, the brightness of the transition display area and the brightness of the main display area are obtained;
Adjusting the brightness of the transition display area until the brightness is the same as that of the main display area;
And acquiring a voltage range of a second gamma curve corresponding to the transition display area when the brightness of the transition display area is the same as that of the main display area, wherein the voltage range is a fourth voltage range.
Optionally, acquiring the fourth voltage range of the second gamma curve corresponding to the transition display area includes:
Acquiring the luminous efficiency of the transition display area in a preset time period;
And determining a fourth voltage range of the second gamma curve according to the third voltage range and the luminous efficiency.
According to a second aspect of embodiments of the present disclosure, there is provided a method of controlling brightness of a display screen, the display screen including a main display area and a sub display area; the pixels in the auxiliary display area correspond to a first gamma curve, and the first gamma curve comprises a first voltage range and a second voltage range; the method comprises the following steps:
if the brightness of the auxiliary display area is controlled in the first voltage range of the first gamma curve, the brightness of the auxiliary display area and the brightness of the main display area are obtained;
If the brightness of the auxiliary display area is different from that of the main display area, acquiring a second voltage range of the first gamma curve;
and adjusting the voltage in the second voltage range until the brightness of the auxiliary display area is the same as that of the main display area.
Optionally, the display screen further includes a transition display area located between the primary display area and the secondary display area; the pixels in the transition display area correspond to a second gamma curve, and the second gamma curve comprises a third voltage range and a fourth voltage range; the method further comprises the steps of:
if the brightness of the transition display area is controlled in the third voltage range of the second gamma curve, the brightness of the transition display area and the brightness of the main display area are obtained;
If the brightness of the transition display area is different from that of the main display area, acquiring a fourth voltage range of the second gamma curve;
And adjusting the voltage in the fourth voltage range until the brightness of the transitional display area is the same as that of the main display area.
According to a third aspect of embodiments of the present disclosure, there is provided an apparatus for determining a gamma curve of a display screen, the display screen including a main display area and a sub display area; pixels in the auxiliary display area correspond to a first gamma curve; the device comprises:
The first range acquisition module is used for acquiring a first voltage range of a first gamma curve corresponding to the auxiliary display area;
The second range acquisition module is used for acquiring a second voltage range of the first gamma curve corresponding to the auxiliary display area; the second voltage range exceeds the first voltage range.
Optionally, the second range acquisition module includes:
the brightness acquisition unit is used for acquiring the brightness of the auxiliary display area and the brightness of the main display area after the auxiliary display area is covered with the polaroid;
A brightness adjusting unit for adjusting the brightness of the auxiliary display area until the brightness is the same as the brightness of the main display area;
And the second range acquisition unit is used for acquiring the voltage range of the first gamma curve corresponding to the auxiliary display area when the brightness of the auxiliary display area is the same as that of the main display area, wherein the voltage range is the second voltage range.
Optionally, the second range acquisition module includes:
a luminous efficiency acquisition unit for acquiring luminous efficiency of the auxiliary display area in a preset time period;
a second range acquisition unit configured to determine a second voltage range of the first gamma curve according to the first voltage range and the light emission efficiency.
Optionally, the display screen further includes a transition display area located between the primary display area and the secondary display area; pixels in the transition display area correspond to a second gamma curve; the apparatus further comprises:
A third range obtaining module, configured to obtain a third voltage range of the second gamma curve corresponding to the transition display area;
a fourth range obtaining module, configured to obtain a fourth voltage range of the second gamma curve corresponding to the transition display area; the fourth voltage range exceeds the third voltage range.
Optionally, the fourth range acquisition module includes:
the brightness acquisition unit is used for acquiring the brightness of the transition display area and the brightness of the main display area after the transition display area is covered with the polaroid;
The brightness adjusting unit is used for adjusting the brightness of the transition display area until the brightness is the same as the brightness of the main display area;
And the fourth range acquisition unit is used for acquiring the voltage range of the second gamma curve corresponding to the transition display area when the brightness of the transition display area is the same as that of the main display area, wherein the voltage range is the fourth voltage range.
Optionally, the fourth range acquisition module includes:
The light-emitting efficiency acquisition unit is used for acquiring the light-emitting efficiency of the transition display area in a preset time period;
And a fourth range acquisition unit configured to determine a fourth voltage range of the second gamma curve according to the third voltage range and the light emission efficiency.
According to a fourth aspect of embodiments of the present disclosure, there is provided an apparatus for controlling brightness of a display screen, the display screen including a main display area and a sub display area; the pixels in the auxiliary display area correspond to a first gamma curve, and the first gamma curve comprises a first voltage range and a second voltage range; the device comprises:
a brightness acquisition module, configured to acquire brightness of the secondary display area and brightness of the primary display area when the brightness of the secondary display area is controlled in a first voltage range of the first gamma curve;
a second range obtaining module, configured to obtain a second voltage range of the first gamma curve when the brightness of the secondary display area is different from the brightness of the primary display area;
And the brightness adjusting module is used for adjusting the voltage in the second voltage range until the brightness of the auxiliary display area is the same as that of the main display area.
Optionally, the display screen further includes a transition display area located between the primary display area and the secondary display area; the pixels in the transition display area correspond to a second gamma curve, and the second gamma curve comprises a third voltage range and a fourth voltage range; the apparatus further comprises:
The brightness acquisition module is used for acquiring the brightness of the transition display area and the brightness of the main display area when the brightness of the transition display area is controlled in a third voltage range of the second gamma curve;
A fourth voltage obtaining module, configured to obtain a fourth voltage range of the second gamma curve when the brightness of the transition display area is different from the brightness of the main display area;
And the brightness adjusting module is used for adjusting the voltage in the fourth voltage range until the brightness of the transitional display area is the same as that of the main display area.
According to a fifth aspect of embodiments of the present disclosure, there is provided an electronic device comprising a processor and a memory storing executable instructions; the processor reads executable instructions from the memory to implement the steps of the methods of the first and second aspects.
According to a sixth aspect of embodiments of the present disclosure, there is provided a machine-readable storage medium having stored thereon machine-executable instructions which when executed by a processor implement the steps of the methods of the first and second aspects.
The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:
As can be seen from the above embodiments, the embodiments of the present disclosure determine the second voltage range of the first gamma curve corresponding to the secondary display area, that is, the first gamma curve, the first voltage range, and the second voltage range as the final gamma curve corresponding to the secondary display area. In this way, in this embodiment, the luminance of the secondary display area may be controlled by using the first voltage range when the display screen is controlled, and the luminance of the secondary display area may be controlled by using the second voltage range when the luminance of the secondary display area is attenuated, so that the luminance of the primary display area and the luminance of the secondary display area are always the same. Therefore, in this embodiment, by increasing the voltage adjustment range of the gamma curve of the auxiliary display area, the same effect of the main display area brightness can be achieved after the brightness of the auxiliary display area is attenuated, the display effect can be ensured, and the service life of the auxiliary display area is prolonged.
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 disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a front view of a display screen according to an exemplary embodiment;
FIG. 2 is a flowchart illustrating a method of determining a gamma curve for a display screen according to an exemplary embodiment;
FIG. 3 is a graph illustrating a gamma curve and voltage ranges before and after adjustment according to an exemplary embodiment;
FIG. 4 is a flowchart illustrating a method of determining a gamma curve for a display screen according to an exemplary embodiment;
FIG. 5 is a flowchart illustrating obtaining a second voltage range according to an exemplary embodiment;
FIG. 6 is a front view of another display screen shown according to an exemplary embodiment;
FIG. 7 is a flowchart illustrating another method of determining a gamma curve for a display screen according to an exemplary embodiment;
FIG. 8 is a flowchart illustrating one way of acquiring a fourth voltage range, according to an example embodiment;
FIG. 9 is a flowchart illustrating another method of acquiring a fourth voltage range, according to an example embodiment;
FIG. 10 is a flowchart illustrating a method of controlling display screen brightness according to an exemplary embodiment;
FIG. 11 is a flowchart illustrating another method of controlling display screen brightness according to an exemplary embodiment;
FIGS. 12-17 are block diagrams illustrating an apparatus for determining a gamma curve of a display screen according to an exemplary embodiment;
Fig. 18 to 19 are block diagrams of an apparatus for controlling brightness of a display screen according to an exemplary embodiment;
fig. 20 is a block diagram of an electronic device, according to an example embodiment.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus consistent with some aspects of the disclosure as detailed in the accompanying claims.
The disclosed embodiments also provide a display screen, and fig. 1 is a schematic diagram of a display screen according to an exemplary embodiment. Referring to fig. 1, a display screen 10 includes a main display area 11 and a sub display area 12.
It should be noted that, the display screen 10 includes two different types of display areas, i.e., the main display area 11 and the auxiliary display area 12, but the main display area 11 and the auxiliary display area 12 are physically integrated, i.e., the display screen 10 is an integrated structure, which is not divided into a plurality of independent components.
In the embodiment of the present disclosure, the main display area 11 and the sub display area 12 each have a display function. The number of the sub display areas 12 may be one or more. In fig. 1, the number of sub display sections 12 is schematically illustrated as 1.
In an example, the camera 20 may be disposed below the secondary display area 12 to implement a photographing function, and may be one or more of a general camera, an infrared camera, a depth camera, a structured light camera, and a TOF camera, so that the camera 20 occupying the space of the display screen may be disposed below the secondary display area 12 to release the space of the display screen 10 to the maximum and to increase the screen ratio. If the display screen has a frame, only the frame can bring a certain reduction to the screen occupation ratio; if the display screen has no frame, the screen duty ratio can reach 100%, so that a full screen in a real sense is realized.
In one example, the other devices may include at least one of: an earphone, a light sensor, a distance sensor, a biological sensor, an environment sensor, a food safety detection sensor, a health sensor and an optical transmitter. The earphone is used for realizing the sound playing function. The light sensor is used for collecting the intensity of ambient light. The distance sensor is used for acquiring the distance of the front object. The biometric sensor is used to identify a biometric feature of a user, such as a fingerprint recognition sensor, an iris recognition sensor, etc. The environmental sensor is used for collecting environmental information, such as a temperature sensor, a humidity sensor, an air pressure sensor and the like. Food safety detection sensors are used to detect indicators of some harmful substances in food, such as optical sensors, biometric sensors, etc. The health sensor is used to collect health information of the user, such as a sensor for collecting heart rate, blood pressure, heart beat or other body data of the user. An optical emitter is a functional device for emitting light, such as an infrared emitter or some emitter for emitting other light.
In the embodiment of the present disclosure, since the camera 20 is required to light when operating, the light transmittance of the sub display area 12 is superior to that of the main display area 11, for example, the light transmittance of the sub display area 12 is greater than that of the main display area 11. Optionally, the light transmittance of the secondary display area 12 is greater than 30% to meet the normal operating requirements of cameras and other devices for light transmittance. In practical applications, the appropriate materials, appropriate processes, or appropriate pixel distribution patterns may be selected according to the light transmittance requirements of the devices below the secondary display region to produce a secondary display region 12 that meets the light transmittance requirements described above.
In the embodiment of the present disclosure, in combination with the requirement of the camera 20 for light, the working state of the auxiliary display area 12 may be adjusted according to the working state of the camera 20. For example, when the camera 20 has a requirement for capturing an image, the secondary display area 12 can be controlled to be in a closed state, so that light enters the camera 20 through the secondary display area, and interference to the light can be reduced due to the fact that the secondary display area 12 is not displayed, which is beneficial to ensuring the quality of the captured image of the camera 20. When the camera 20 does not collect images, the auxiliary display area 12 can be controlled to be in a display state, so that the display effect of the display screen is ensured.
In the disclosed embodiments, the display screen 10 is typically controlled by a driver chip, at least one of which: a line scanning driving chip, a data driving chip and a power supply chip. In one example, the main display area 11 and the sub display area 12 share the same driving chip, for example, one driving chip may be divided into two parts, one for driving the main display area 11 and the other for driving the sub display area 12. In another example, the main display area 11 and the sub display area 12 use different driving chips, for example, a display screen includes two driving chips, one for driving the main display area 11 and the other for driving the sub display area 12. In addition, when the display screen 10 includes a plurality of sub display areas 12, the plurality of sub display areas 12 may share the same driving chip, or may use different driving chips, which is not limited in the present disclosure.
In order to ensure the display function of the auxiliary display area, more pixels are required to be arranged in the auxiliary display area so as to ensure the display quality; to increase light transmittance, it is desirable to reduce pixels to reduce light shielding. In this way, the display function and the transmittance in the sub-display area conflict with the demand for pixels.
In an embodiment of the present disclosure, under the condition of ensuring an effective display area of the secondary display area, the density of the wires in the secondary display area in the display screen is reduced, so that the density of the wires in the secondary display area is lower than that of the wires in the high display area, and therefore, the light transmittance of the secondary display area is better than that of the primary display area.
In order to increase the light transmittance of the secondary display region, in the embodiment of the present disclosure, the anode of the pixel in the secondary display region 12 is made of indium oxide ITO, and in the case that other transparent materials with better conductivity can be obtained, the anode may be replaced by other materials. The anodes of the pixels in the main display area 12 are made of indium tin oxide and silver, and the structure can be ITO/Ag/ITO. In one example, the anodes of the pixels in the transitional display region 13 are made of the same material as the anodes of the pixels in the secondary display region 12, such as indium oxide ITO. In this embodiment, the anodes of the pixels in the auxiliary display area 12 and the transition display area 13 are made of the same material, so that the auxiliary display area 12 and the transition display area 13 have the same reflectivity, and subsequent adjustment is facilitated.
However, since the anode of the pixel in the auxiliary display area is made of ITO, it belongs to a non-microcavity device, and the reflection efficiency of the light emission is low, that is, the light emission utilization rate in the auxiliary display area is lower than that in the main display area (belonging to a microcavity structure). In order to ensure that the main display area and the auxiliary display area have the same brightness, the light-emitting devices in the auxiliary display area are required to be in a high-brightness state for a long time, so that the service life decay speed of pixels in the auxiliary display area is faster than that of the main display area, and the use of a display screen is affected.
In order to solve the above-mentioned problems, the disclosed embodiments provide a method for determining a gamma curve of a display screen, where the inventive concept is that, in combination with a working stage of pixels in a secondary display area, a first voltage range is used to adjust brightness at the beginning and a second voltage range is used to adjust brightness at the time of brightness decay, so as to ensure that the brightness of the secondary display area is always the same as the brightness of a primary display area, thereby being beneficial to prolonging the service life of the secondary display area and ensuring the display effect of the display screen.
Fig. 2 is a flowchart illustrating a method of determining a gamma curve of a display screen according to an exemplary embodiment, and referring to fig. 2, a method of determining a gamma curve of a display screen may be applied to an electronic device, including steps 201 and 202. Wherein:
In step 201, a first voltage range of a first gamma curve corresponding to the secondary display area is obtained.
In this embodiment, the electronic device may acquire a first voltage range of the first gamma curve corresponding to the secondary display area, where the first voltage range is shown by reference symbol a in fig. 3. Wherein, obtaining the first voltage range includes:
in an example, the first gamma curve and the first voltage range may be preset, and stored in a specified location of a local memory, a cache, etc., so that the electronic device may directly read from the specified location.
In another example, the electronic device may adjust its brightness from dark to brightest according to a gamma curve of a main display area in the display screen, and may obtain the first voltage range of the sub display area under the condition that the brightness of the sub display area is ensured to be the same as the brightness of the main display area. The electronic device may thus acquire a first voltage range of the first gamma curve.
Of course, the skilled person can select a suitable first voltage range obtaining manner according to a specific scene, and under the condition that the first voltage range can be obtained, the corresponding scheme falls into the protection scope of the application.
It should be noted that, in this embodiment, the luminance of the main display area and the sub display area is obtained by, but not limited to, the following ways: instrument measurement and image comparison.
In step 202, a second voltage range of the first gamma curve corresponding to the secondary display area is obtained; the second voltage range exceeds the first voltage range, and the first gamma curve, the first voltage range, and the second voltage range are used as final gamma curves corresponding to the secondary display area.
In this embodiment, the electronic device may obtain a second voltage range of the secondary display area corresponding to the first gamma curve, including:
In an example, referring to fig. 4, the electronic device may cover the polarizer on the secondary display area according to the control actuator, and then acquire the brightness of the secondary display area and the brightness of the primary display area (corresponding to step 401). It should be noted that, the electronic device may also prompt the user, and the user covers the polarizer in the secondary display area. The technical personnel can set the mode of covering the polaroid according to specific scenes, and the corresponding scheme falls into the protection scope of the application.
With continued reference to fig. 4, in the case where the brightness of the main display area is unchanged, the electronic device may adjust the voltage based on the first gamma curve, so that the brightness of the sub display area gradually approaches the brightness of the main display area until the brightness of the main display area and the sub display area are the same (corresponding to step 402).
With continued reference to fig. 4, when the brightness of the secondary display area is the same as that of the primary display area, the electronic device obtains a voltage range of the first gamma curve corresponding to the secondary display area, and obtains a second voltage range (corresponding to step 403). The second voltage range may be referred to as the voltage range indicated by reference b in fig. 3.
Thus, by covering the polarizer in this embodiment, the luminance of the sub-display area can be reduced, and in order to maintain the luminance of the sub-display area, it is necessary to increase the voltage applied to the pixel. Since the brightness of the OLED pixel increases as the voltage decreases, the voltage shown in fig. 3 becomes small, so that the voltage range of the gamma curve can be expanded, i.e., from the first voltage range (corresponding to reference numeral a) to the second voltage range (corresponding to reference numeral b).
In another example, referring to fig. 5, the electronic device may acquire the light emitting efficiency of the sub display area for a preset period of time (corresponding to step 501). The light-emitting efficiency may refer to a ratio of the power of the light emitted from the secondary display area to the light-emitting power of the light-emitting device, and may also refer to a ratio of the brightness of the light emitted from the secondary display area to the theoretical brightness corresponding to the current light-emitting power of the light-emitting device. The technical personnel can select proper parameters according to specific scenes to determine the luminous efficiency, and the corresponding scheme falls into the protection scope of the application.
Based on the definition of the luminous efficiency, the electronic device can calculate the luminous efficiency in real time. Of course, the electronic device may also count the attenuation of the pixel in each time period according to the big data manner, so as to form a corresponding relationship between the time period and the luminous efficiency, and obtain the luminous efficiency when the preset time period (i.e. the use duration) is obtained.
With continued reference to fig. 5, the electronic device may determine a second voltage range of the first gamma curve based on the first voltage range and the luminous efficiency (corresponding to step 502). The electronic device can determine the voltage compensation amount according to the luminous efficiency, and then can obtain the second voltage range by combining the first voltage range. Of course, the electronic device may also generate a light emitting efficiency-voltage compensation curve, and superimpose the light emitting efficiency-voltage compensation curve on the first gamma curve to obtain the second voltage range. The skilled person may also select other schemes to obtain the second voltage range, and the corresponding schemes fall within the protection scope of the present application.
Finally, the electronic device can write the first gamma curve, the first voltage range and the second voltage range into the driving chip of the display screen, and the driving chip drives the auxiliary display area according to the first voltage range or the second voltage range.
To this end, the embodiments of the present disclosure determine the second voltage range of the first gamma curve corresponding to the sub display area, that is, the first gamma curve, the first voltage range, and the second voltage range as the final gamma curve corresponding to the sub display area. In this way, in this embodiment, the luminance of the secondary display area may be controlled by using the first voltage range when the display screen is controlled, and the luminance of the secondary display area may be controlled by using the second voltage range when the luminance of the secondary display area is attenuated, so that the luminance of the primary display area and the luminance of the secondary display area are always the same. Therefore, in this embodiment, by increasing the voltage adjustment range of the gamma curve of the auxiliary display area, the same effect of the main display area brightness can be achieved after the brightness of the auxiliary display area is attenuated, the display effect can be ensured, and the service life of the auxiliary display area is prolonged.
Fig. 6 is a front view of another display screen shown according to an exemplary embodiment, see fig. 6, which differs from the display screen shown in fig. 1 in that the display screen further comprises a transitional display area 13 between the main display area 11 and the secondary display area 12. The structure of the pixels in the transition display area 13 may be the same as the structure of the pixels in the sub display area 12, may be the same as the structure of the pixels in the main display area 11, and may be different from both the main display area 11 and the sub display area 12. Regardless of the structure of the transitional display area, the method for determining the gamma curve of the display screen provided in the subsequent embodiments of the present disclosure may be applied, and fig. 7 is a flowchart illustrating another method for determining the gamma curve of the display screen according to an exemplary embodiment on the basis of one method for determining the gamma curve of the display screen illustrated in fig. 2. It should be noted that the execution sequence of the method shown in fig. 7 may precede, follow, or be executed simultaneously with the method shown in fig. 2, which is not limited herein. Referring to fig. 7, a method of determining a gamma curve of a display screen further includes steps 701 and 702. Wherein:
in step 701, a third voltage range of the second gamma curve corresponding to the transition display area is obtained.
In this embodiment, the electronic device may acquire a third voltage range of the second gamma curve corresponding to the transition display area, where the third voltage range may be shown by reference symbol a in fig. 3. Wherein obtaining the third voltage range includes:
In an example, the second gamma curve and the third voltage range may be preset, and stored in a specified location of a local memory, a buffer, etc., so that the electronic device may directly read from the specified location.
In another example, the electronic device may adjust its brightness from dark to brightest according to the gamma curve of the main display area in the display screen, and may obtain the third voltage range of the transition display area under the condition that the brightness of the transition display area is ensured to be the same as the brightness of the main display area. The electronic device can thus acquire a third voltage range of the second gamma curve.
Of course, the skilled person can select a suitable third voltage range obtaining manner according to a specific scene, and under the condition that the third voltage range can be obtained, the corresponding scheme falls into the protection scope of the application.
It should be noted that, in this embodiment, the obtaining the brightness of the main display area and the transitional display area includes, but is not limited to, the following ways: instrument measurement and image comparison.
In step 702, a fourth voltage range of the second gamma curve corresponding to the transition display area is obtained; the fourth voltage range exceeds the third voltage range, and the second gamma curve, the third voltage range, and the fourth voltage range are used as final gamma curves corresponding to the transition display region.
In this embodiment, the electronic device may obtain a fourth voltage range of the transition display area corresponding to the second gamma curve, including:
In an example, referring to fig. 8, the electronic device may cover the polarizer in the transitional display area according to the control actuator, and then acquire the brightness of the transitional display area and the brightness of the main display area (corresponding to step 801). It should be noted that the electronic device may also prompt the user to cover the polarizer in the transition display area. The technical personnel can set the mode of covering the polaroid according to specific scenes, and the corresponding scheme falls into the protection scope of the application.
With continued reference to fig. 8, in the case where the brightness of the main display area is unchanged, the electronic device may adjust the voltage based on the second gamma curve, so that the brightness of the transition display area gradually approaches the brightness of the main display area until the brightness of the main display area and the brightness of the transition display area are the same (corresponding to step 802).
With continued reference to fig. 8, when the brightness of the transitional display area and the brightness of the main display area are the same, the electronic device obtains a voltage range of the second gamma curve corresponding to the transitional display area, and obtains a fourth voltage range (corresponding to step 803). The fourth voltage range may be referred to as voltage range indicated by reference numeral b in fig. 3.
In this way, the voltage range of the second gamma curve corresponding to the transition display region can be enlarged in the present embodiment, that is, the voltage range is changed from the third voltage range to the fourth voltage range.
In another example, referring to fig. 9, the electronic device may acquire the light emitting efficiency of the transitional display section for a preset period of time (corresponding to step 901). The light-emitting efficiency may refer to a ratio of power of light emitted from the transitional display area to light-emitting power of the light-emitting device, and may refer to a ratio of brightness of light emitted from the transitional display area to theoretical brightness corresponding to the light-emitting device under current light-emitting power. The technical personnel can select proper parameters according to specific scenes to determine the luminous efficiency, and the corresponding scheme falls into the protection scope of the application.
Based on the definition of the luminous efficiency, the electronic device can calculate the luminous efficiency in real time. Of course, the electronic device may also count the attenuation of the pixel in each time period according to the big data manner, so as to form a corresponding relationship between the time period and the luminous efficiency, and obtain the luminous efficiency when the preset time period (i.e. the use duration) is obtained.
With continued reference to fig. 9, the electronic device may determine a fourth voltage range of the second gamma curve based on the third voltage range and the luminous efficiency (corresponding to step 902). The electronic device can determine the voltage compensation amount according to the luminous efficiency, and then can obtain the second voltage range by combining the first voltage range. Of course, the electronic device may also generate a light emitting efficiency-voltage compensation curve, and superimpose the light emitting efficiency-voltage compensation curve on the second gamma curve to obtain the fourth voltage range. The skilled person may also select other schemes to obtain the fourth voltage range, and the corresponding schemes fall within the protection scope of the present application.
Finally, the electronic device can write the second gamma curve, the third voltage range and the fourth voltage range into the driving chip of the display screen, and the driving chip drives the transition display area according to the third voltage range or the fourth voltage range.
Therefore, in the embodiment, the voltage adjustment range of the gamma curve of the transition display area is increased, so that the same effect of the brightness of the main display area can be achieved after the brightness of the transition display area is attenuated, the display effect of the display screen can be ensured, and the service life of the transition display area is prolonged.
After the first gamma curve and the second gamma curve are written into the driving chips of the display screen respectively, the embodiment of the disclosure further provides a method for controlling the brightness of the display screen, and fig. 10 is a flowchart of a method for controlling the brightness of the display screen according to an exemplary embodiment, which can be applied to the driving chips of the display screen or the processor of the display screen, and the subsequent driving chips describe various schemes. Referring to fig. 10, a method of controlling brightness of a display screen includes steps 1001 to 1003. Wherein:
In step 1001, if the brightness of the secondary display area is controlled in the first voltage range of the first gamma curve, the brightness of the secondary display area and the brightness of the primary display area are obtained.
In this embodiment, after the display screen starts to be used, the driving chip in the display screen can control the brightness of the secondary display area in the first voltage range of the first gamma curve. Of course, after a period of use, the driving chip may also switch to the second voltage range using the present scheme. The driving chip can detect whether to control the brightness of the auxiliary display area in the first voltage range or the second voltage range in real time or according to a set period.
If the brightness of the auxiliary display area is detected to be controlled in the first voltage range of the first gamma curve, the driving chip can acquire the brightness of the auxiliary display area and the brightness of the main display area. The manner of acquiring the brightness can drive the chip to communicate with an external device (a measuring instrument or an image acquisition device) so as to acquire brightness data. Of course, the driving chip may also acquire measurement data and/or calculate the brightness of the image itself. The technician can also select other schemes to obtain the brightness, and the corresponding schemes fall into the protection scope of the application.
In step 1002, if the brightness of the secondary display area is different from the brightness of the primary display area, a second voltage range of the first gamma curve is obtained.
In this embodiment, the driving chip may compare the brightness of the secondary display area and the primary display area, and return to step 1001 when the brightness of the secondary display area and the primary display area are the same; when the brightness of the two voltages is different, the driving chip obtains a second voltage range of the first gamma curve, for example, the second voltage range is read from the local or interacted with external equipment to obtain the second voltage range.
In step 1003, the voltage is adjusted in the second voltage range until the brightness of the secondary display area and the primary display area are the same.
In this embodiment, the driving chip adjusts the voltage of the secondary display area within the second voltage range, so that the brightness of the secondary display area is the same as that of the primary display area. It should be noted that, in the process of adjusting the voltage, the driving chip needs to obtain the real-time brightness of the auxiliary display area and the main display area, and the obtaining manner may refer to 1002, which is not described herein again.
In an embodiment, if the display screen includes the transition display area as shown in fig. 6, the driving chip may detect whether to control the brightness of the transition display area in the third voltage range of the second gamma curve, and if not, continue to detect; if so, the brightness of the transitional display area and the brightness of the main display area are obtained (corresponding to step 1101). Then, the driving chip compares the brightness of the transition display area and the brightness of the main display area, and when the brightness of the transition display area and the brightness of the main display area are different, the driving chip obtains a fourth voltage range of the second gamma curve (corresponding to step 1102). Then, the driving chip adjusts the voltages of the pixels in the transition display area within the fourth voltage range until the brightness of the transition display area is the same as that of the main display area (corresponding to step 1103).
Therefore, in this embodiment, by increasing the voltage adjustment range of the gamma curve of the auxiliary display area, it is ensured that the same effect of the brightness of the main display area can be achieved after the brightness of the auxiliary display area is attenuated. In addition, the brightness of the transition display area and the main display area can be the same in the embodiment. The embodiment can ensure the display effect and is beneficial to prolonging the service life of the auxiliary display area
FIG. 12 is a block diagram illustrating an apparatus for determining a gamma curve of a display screen, see FIG. 12, the display screen including a primary display area and a secondary display area, according to an exemplary embodiment; pixels in the auxiliary display area correspond to a first gamma curve; the apparatus 1200 includes:
a first range obtaining module 1201, configured to obtain a first voltage range of a first gamma curve corresponding to the secondary display area;
a second range obtaining module 1202, configured to obtain a second voltage range of the first gamma curve corresponding to the secondary display area; the second voltage range exceeds the first voltage range.
FIG. 13 is a block diagram of another apparatus for determining a gamma curve of a display screen, according to an exemplary embodiment, referring to FIG. 13, based on the apparatus shown in FIG. 12, the second range acquisition module 1202 includes:
a brightness acquiring unit 1301, configured to acquire, after the auxiliary display area covers the polarizer, brightness of the auxiliary display area and brightness of the main display area;
A brightness adjustment unit 1302 for adjusting the brightness of the secondary display area until the brightness is the same as the brightness of the primary display area;
A second range obtaining unit 1303, configured to obtain a voltage range of the first gamma curve corresponding to the secondary display area when the brightness of the secondary display area is the same as that of the primary display area, where the voltage range is the second voltage range.
FIG. 14 is a block diagram of another apparatus for determining a gamma curve of a display screen, according to an exemplary embodiment, referring to FIG. 14, based on the apparatus shown in FIG. 12, the second range acquisition module 1202 includes:
a luminous efficiency acquiring unit 1401, configured to acquire luminous efficiency of the secondary display area in a preset period;
a second range acquisition unit 1402 for determining a second voltage range of the first gamma curve according to the first voltage range and the luminous efficiency.
FIG. 15 is a block diagram of another apparatus for determining a gamma curve of a display screen, see FIG. 15, which further includes a transitional display region between the primary display region and the secondary display region based on the apparatus of FIG. 12, according to an exemplary embodiment; pixels in the transition display area correspond to a second gamma curve; the apparatus 1200 further comprises:
a third range obtaining module 1501, configured to obtain a third voltage range of the second gamma curve corresponding to the transition display area;
A fourth range obtaining module 1502, configured to obtain a fourth voltage range of the second gamma curve corresponding to the transition display area; the fourth voltage range exceeds the third voltage range.
Fig. 16 is a block diagram of another apparatus for determining a gamma curve of a display screen according to an exemplary embodiment, referring to fig. 16, the fourth range acquisition module 1502 includes:
a brightness acquiring unit 1601, configured to acquire, after the transition display area is covered with the polarizer, brightness of the transition display area and brightness of the main display area;
A brightness adjustment unit 1602, configured to adjust the brightness of the transition display area until the brightness is the same as the brightness of the main display area;
a fourth range obtaining unit 1603, configured to obtain a voltage range of the second gamma curve corresponding to the transition display area when the brightness of the transition display area is the same as that of the main display area, where the voltage range is the fourth voltage range.
Fig. 17 is a block diagram of another apparatus for determining a gamma curve of a display screen according to an exemplary embodiment, referring to fig. 17, the fourth range acquisition module 1502 includes:
a luminous efficiency obtaining unit 1701, configured to obtain luminous efficiency of the transition display area in a preset time period;
a fourth range obtaining unit 1702 configured to determine a fourth voltage range of the second gamma curve according to the third voltage range and the light emitting efficiency.
The embodiment of the disclosure also provides a device for controlling the brightness of the display screen, and fig. 18 is a block diagram of a device for controlling the brightness of the display screen according to an exemplary embodiment. Referring to fig. 18, an apparatus 1800 for controlling brightness of a display screen, the display screen including a primary display area and a secondary display area; the pixels in the auxiliary display area correspond to a first gamma curve, and the first gamma curve comprises a first voltage range and a second voltage range; the apparatus 1800 includes:
A luminance acquiring module 1801, configured to acquire luminance of the secondary display area and luminance of the primary display area when controlling luminance of the secondary display area in a first voltage range of the first gamma curve;
A second range obtaining module 1802, configured to obtain a second voltage range of the first gamma curve when the brightness of the secondary display area is different from the brightness of the primary display area;
And a brightness adjustment module 1803, configured to adjust a voltage within the second voltage range until the brightness of the secondary display area and the main display area are the same.
FIG. 19 is a block diagram of another apparatus for controlling the brightness of a display screen, see FIG. 19, which further includes a transitional display area between the primary display area and the secondary display area based on the apparatus of FIG. 18, according to an exemplary embodiment; the pixels in the transition display area correspond to a second gamma curve, and the second gamma curve comprises a third voltage range and a fourth voltage range; the apparatus 1800 further comprises:
a brightness acquisition module 1901 for acquiring the brightness of the transitional display area and the brightness of the main display area when the brightness of the transitional display area is controlled in the third voltage range of the second gamma curve;
A fourth voltage obtaining module 1902, configured to obtain a fourth voltage range of the second gamma curve when the brightness of the transition display area is different from the brightness of the main display area;
and a brightness adjustment module 1903, configured to adjust the voltage in the fourth voltage range until the brightness of the transitional display area and the main display area are the same.
Since the device embodiment corresponds to the content of the method embodiment, the corresponding scheme can refer to the content of the method embodiment shown in fig. 2 to 11, and will not be described herein.
Fig. 20 is a block diagram of an electronic device, according to an example embodiment. For example, the electronic device 2000 may be a smart phone, a computer, a digital broadcast terminal, a tablet device, a medical device, an exercise device, a personal digital assistant, and the like.
Referring to fig. 20, the electronic device 2000 may include one or more of the following components: a processing component 2002, a memory 2004, a power component 2006, a multimedia component 2008, an audio component 2010, an input/output (I/O) interface 2012, a sensor component 2014, a communication component 2016, and an image acquisition component 2018.
The processing component 2002 generally operates the overall operation of the electronic device 2000, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing component 2002 can include one or more processors 2020 to execute instructions. Further, the processing component 2002 may include one or more modules that facilitate interactions between the processing component 2002 and other components. For example, the processing component 2002 can include a multimedia module to facilitate interaction between the multimedia component 2008 and the processing component 2002. In addition, the processor 2020 may also be in communication with the memory 2004, and may read executable instructions from the memory 2004 to implement steps of the methods shown in fig. 2 to 11, which are not described in detail herein.
The memory 2004 is configured to store various types of data to support operations at the electronic device 2000. Examples of such data include instructions for any application or method operating on the electronic device 2000, contact data, phonebook data, messages, pictures, videos, and the like. The memory 2004 may be implemented by any type or combination of volatile or nonvolatile 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 disk.
The power supply assembly 2006 provides power to the various components of the electronic device 2000. The power supply components 2006 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 2000.
The multimedia component 2008 includes a screen between the electronic device 2000 and the target object that provides an output interface, which may be the display screen shown in fig. 1 or fig. 6, and specific content may be referred to in the embodiment shown in fig. 1 or fig. 6. In some embodiments, the screen may include an OLED display screen and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a target object. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation.
The audio component 2010 is configured to output and/or input audio signals. For example, audio component 2010 includes a Microphone (MIC) configured to receive external audio signals when electronic device 2000 is in an operational mode such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 2004 or transmitted via the communication component 2016. In some embodiments, audio assembly 2010 further includes a speaker for outputting audio signals.
I/O interface 2012 provides an interface between processing component 2002 and peripheral interface modules, which may be keyboards, click wheels, buttons, and the like.
The sensor assembly 2014 includes one or more sensors for providing status assessment of various aspects of the electronic device 2000. For example, the sensor assembly 2014 may detect an on/off state of the electronic device 2000, a relative positioning of components such as an OLED display and keypad of the electronic device 2000, a change in position of the electronic device 2000 or one component, the sensor assembly 2014 may also detect the presence or absence of a target object in contact with the electronic device 2000, an orientation or acceleration/deceleration of the electronic device 2000, and a change in temperature of the electronic device 2000.
The communication component 2016 is configured to facilitate communication between the electronic device 2000 and other devices, either wired or wireless. The electronic device 2000 may access a wireless network based on a communication standard, such as WiFi,2G,3G,4G, or 5G, or a combination thereof. In one exemplary embodiment, the communication component 2016 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 2016 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, and other technologies.
The image capturing component 2018 may be a device with an image capturing function, such as a device of a structured light camera (TOF), an infrared camera, a video camera, or a device of a charge coupled device, an image sensor, or the like.
In an exemplary embodiment, the electronic device 2000 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, microcontrollers, microprocessors, or other electronic elements.
In an exemplary embodiment, a non-transitory machine-readable storage medium is also provided that includes instructions, such as memory 2004 including instructions, that are executable by processor 2020 of electronic device 2000. For example, the non-transitory machine-readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.
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 application is intended to cover any adaptations, 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 is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
Claims (12)
1. A method of controlling the brightness of a display screen, wherein the display screen comprises a primary display area and a secondary display area; the pixels in the auxiliary display area correspond to a first gamma curve, and the first gamma curve comprises a first voltage range and a second voltage range; the method comprises the following steps:
If the brightness of the auxiliary display area is controlled in the first voltage range of the first gamma curve, the brightness of the auxiliary display area and the brightness of the main display area are obtained; the first voltage range is a voltage range of a first gamma curve corresponding to the auxiliary display area when the main display area and the auxiliary display area have the same brightness and the light emitting device in the auxiliary display area is in a high-brightness state;
If the brightness of the auxiliary display area is different from that of the main display area, acquiring a second voltage range of the first gamma curve; the second voltage range exceeds the first voltage range;
Adjusting the voltage in the second voltage range until the brightness of the auxiliary display area is the same as that of the main display area;
The second voltage range of the first gamma curve is determined by obtaining the brightness of the auxiliary display area and the brightness of the main display area after the auxiliary display area covers the polaroid, adjusting the brightness of the auxiliary display area until the brightness is the same as the brightness of the main display area, and obtaining the voltage range of the first gamma curve corresponding to the auxiliary display area when the brightness of the auxiliary display area is the same as the brightness of the main display area, wherein the voltage range is the second voltage range.
2. The method of claim 1, wherein the display screen further comprises a transitional display region between the primary display region and the secondary display region; the pixels in the transition display area correspond to a second gamma curve, and the second gamma curve comprises a third voltage range and a fourth voltage range; the method further comprises the steps of:
if the brightness of the transition display area is controlled in the third voltage range of the second gamma curve, the brightness of the transition display area and the brightness of the main display area are obtained;
If the brightness of the transition display area is different from that of the main display area, acquiring a fourth voltage range of the second gamma curve;
And adjusting the voltage in the fourth voltage range until the brightness of the transitional display area is the same as that of the main display area.
3. A method of determining a gamma curve for a display screen, comprising:
Acquiring a first voltage range of a first gamma curve corresponding to the auxiliary display area;
Acquiring a second voltage range of a first gamma curve corresponding to the auxiliary display area; the second voltage range exceeds the first voltage range;
taking the first gamma curve, the first voltage range and the second voltage range as final gamma curves corresponding to the auxiliary display area;
the step of obtaining the second voltage range of the first gamma curve corresponding to the auxiliary display area comprises the following steps:
after the auxiliary display area is covered with the polaroid, the brightness of the auxiliary display area and the brightness of the main display area are obtained;
Adjusting the brightness of the auxiliary display area until the brightness is the same as that of the main display area;
And acquiring a voltage range of a first gamma curve corresponding to the auxiliary display area when the brightness of the auxiliary display area is the same as that of the main display area, wherein the voltage range is a second voltage range.
4. The method of claim 3, wherein the display screen further comprises a transitional display region between the primary display region and the secondary display region; pixels in the transition display area correspond to a second gamma curve; the method further comprises the steps of:
acquiring a third voltage range of a second gamma curve corresponding to the transition display area;
Acquiring a fourth voltage range of a second gamma curve corresponding to the transition display area; the fourth voltage range exceeds the third voltage range, and the second gamma curve, the third voltage range, and the fourth voltage range are used as final gamma curves corresponding to the transition display region.
5. The method of claim 4, wherein obtaining a fourth voltage range of the second gamma curve corresponding to the transitional display zone comprises:
After the transition display area is covered with the polaroid, the brightness of the transition display area and the brightness of the main display area are obtained;
Adjusting the brightness of the transition display area until the brightness is the same as that of the main display area;
And acquiring a voltage range of a second gamma curve corresponding to the transition display area when the brightness of the transition display area is the same as that of the main display area, wherein the voltage range is a fourth voltage range.
6. A device for controlling the brightness of a display screen, wherein the display screen comprises a main display area and a secondary display area; the pixels in the auxiliary display area correspond to a first gamma curve, and the first gamma curve comprises a first voltage range and a second voltage range; the device comprises:
A brightness acquisition module, configured to acquire brightness of the secondary display area and brightness of the primary display area when the brightness of the secondary display area is controlled in a first voltage range of the first gamma curve; the first voltage range is a voltage range of a first gamma curve corresponding to the auxiliary display area when the main display area and the auxiliary display area have the same brightness and the light emitting device in the auxiliary display area is in a high-brightness state;
A second range obtaining module, configured to obtain a second voltage range of the first gamma curve when the brightness of the secondary display area is different from the brightness of the primary display area; the second voltage range exceeds the first voltage range;
the brightness adjusting module is used for adjusting the voltage in the second voltage range until the brightness of the auxiliary display area is the same as that of the main display area;
The second voltage range of the first gamma curve is determined by obtaining the brightness of the auxiliary display area and the brightness of the main display area after the auxiliary display area covers the polaroid, adjusting the brightness of the auxiliary display area until the brightness is the same as the brightness of the main display area, and obtaining the voltage range of the first gamma curve corresponding to the auxiliary display area when the brightness of the auxiliary display area is the same as the brightness of the main display area, wherein the voltage range is the second voltage range.
7. The apparatus of claim 6, wherein the display screen further comprises a transitional display region between the primary display region and the secondary display region; the pixels in the transition display area correspond to a second gamma curve, and the second gamma curve comprises a third voltage range and a fourth voltage range; the apparatus further comprises:
The brightness acquisition module is used for acquiring the brightness of the transition display area and the brightness of the main display area when the brightness of the transition display area is controlled in a third voltage range of the second gamma curve;
A fourth voltage obtaining module, configured to obtain a fourth voltage range of the second gamma curve when the brightness of the transition display area is different from the brightness of the main display area;
And the brightness adjusting module is used for adjusting the voltage in the fourth voltage range until the brightness of the transitional display area is the same as that of the main display area.
8. An apparatus for determining a gamma curve for a display screen, the apparatus comprising:
the first range acquisition module is used for acquiring a first voltage range of a first gamma curve corresponding to the auxiliary display area;
The second range acquisition module is used for acquiring a second voltage range of the first gamma curve corresponding to the auxiliary display area; the second voltage range exceeds the first voltage range;
taking the first gamma curve, the first voltage range and the second voltage range as final gamma curves corresponding to the auxiliary display area;
The second range acquisition module includes:
The brightness acquisition unit is used for acquiring the brightness of the auxiliary display area and the brightness of the main display area after the auxiliary display area is covered with the polaroid;
A brightness adjusting unit for adjusting the brightness of the auxiliary display area until the brightness is the same as the brightness of the main display area;
And the second range acquisition unit is used for acquiring the voltage range of the first gamma curve corresponding to the auxiliary display area when the brightness of the auxiliary display area is the same as that of the main display area, wherein the voltage range is the second voltage range.
9. The apparatus of claim 8, wherein the display screen further comprises a transitional display region between the primary display region and the secondary display region; pixels in the transition display area correspond to a second gamma curve; the apparatus further comprises:
A third range obtaining module, configured to obtain a third voltage range of the second gamma curve corresponding to the transition display area;
a fourth range obtaining module, configured to obtain a fourth voltage range of the second gamma curve corresponding to the transition display area; the fourth voltage range exceeds the third voltage range.
10. The apparatus of claim 9, wherein the fourth range acquisition module comprises:
the brightness acquisition unit is used for acquiring the brightness of the transition display area and the brightness of the main display area after the transition display area is covered with the polaroid;
The brightness adjusting unit is used for adjusting the brightness of the transition display area until the brightness is the same as the brightness of the main display area;
And the fourth range acquisition unit is used for acquiring the voltage range of the second gamma curve corresponding to the transition display area when the brightness of the transition display area is the same as that of the main display area, wherein the voltage range is the fourth voltage range.
11. An electronic device comprising a processor and a memory storing executable instructions; the processor reads executable instructions from the memory to implement the steps of the method of any one of claims 1 to 5.
12. A machine-readable storage medium having stored thereon machine-executable instructions which, when executed by a processor, implement the steps of the method of any of claims 1 to 5.
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