CN112687228A - Gamma curve adjusting method and adjusting device - Google Patents
Gamma curve adjusting method and adjusting device Download PDFInfo
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- CN112687228A CN112687228A CN202110093834.1A CN202110093834A CN112687228A CN 112687228 A CN112687228 A CN 112687228A CN 202110093834 A CN202110093834 A CN 202110093834A CN 112687228 A CN112687228 A CN 112687228A
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Abstract
The invention discloses a gamma curve adjusting method and device. The adjusting method of the gamma curve comprises the following steps: adjusting a main gamma curve of the first display area corresponding to the current display brightness grade according to the current display brightness grade of the first display area to obtain adjusted first display brightness; wherein, different display brightness levels correspond to different main gamma curves; adjusting the secondary gamma curve of the second display area corresponding to the current display brightness grade according to the first display brightness, and adjusting the primary gamma curve of the first display area corresponding to the next display brightness grade according to the next display brightness grade of the first display area to obtain the adjusted second display brightness; wherein, different display brightness levels correspond to different sub-gamma curves; and adjusting the secondary gamma curve of the second display area corresponding to the next display brightness level according to the second display brightness. Therefore, the time length for adjusting different gamma curves in sequence can be reduced, and the adjusting efficiency of the gamma curves is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of display, in particular to a gamma curve adjusting method and device.
Background
The current display panels are moving towards full-screen. In the comprehensive screen, a light-transmitting area with larger light transmittance is required to be arranged in the display area for placing a camera and other structures. At the moment, the normal display area and the light-transmitting area respectively correspond to different gamma curves to carry out brightness and color adjustment so as to meet different requirements of the normal display area and the light-transmitting area on the gamma curves. Because the normal display area and the light-transmitting area respectively correspond to the plurality of gamma curves under the condition of different display brightness levels, when the plurality of gamma curves corresponding to the normal display area and the light-transmitting area are adjusted in sequence, the consumed time is long, and the efficiency of adjusting the gamma curves is reduced.
Disclosure of Invention
The invention provides a gamma curve adjusting method and device, which are used for reducing the adjusting time of a gamma curve and improving the adjusting efficiency of the gamma curve.
In a first aspect, an embodiment of the present invention provides a method for adjusting a gamma curve, including:
adjusting a main gamma curve of the first display area corresponding to the current display brightness grade according to the current display brightness grade of the first display area to obtain adjusted first display brightness; wherein, different display brightness levels correspond to different main gamma curves;
adjusting a secondary gamma curve of a second display area corresponding to the current display brightness level according to the first display brightness, and adjusting a primary gamma curve of the first display area corresponding to the next display brightness level according to the next display brightness level of the first display area to obtain adjusted second display brightness; wherein, different display brightness levels correspond to different sub-gamma curves;
and adjusting a secondary gamma curve of the second display area corresponding to the next display brightness level according to the second display brightness.
Optionally, the adjusting, according to the current display brightness level of the first display area, the main gamma curve of the first display area corresponding to the current display brightness level to obtain the adjusted first display brightness includes:
acquiring the current display brightness and the current display brightness grade of the first display area by adopting a first optical device;
determining first target brightness according to a main gamma curve corresponding to the current display brightness level of the first display area;
and adjusting the current display brightness of the first display area until the first target brightness, wherein the first target brightness is used as the first display brightness.
Optionally, the adjusting the current display brightness of the first display area to the first target brightness includes:
and adjusting the current display brightness of each gray scale of the first display area to the first target brightness.
Optionally, the adjusting, according to the second display brightness, the secondary gamma curve of the second display area corresponding to the current display brightness level includes:
determining the first target brightness as a second target brightness;
and adjusting the current display brightness of the second display area until the second target brightness.
Optionally, before determining that the first target brightness is the second target brightness of the sub-gamma curve corresponding to the current display brightness level of the second display area, the method includes:
acquiring the first target brightness by adopting a second optical device; the second optical device is arranged on one side of the first display area close to the second display area.
Optionally, the adjusting the current display brightness of the second display area to the second target brightness includes:
acquiring the current display brightness of each gray scale of the second display area by adopting the second optical device; wherein the second optical device is moved from the first display area to the second display area;
and adjusting the current display brightness of each gray scale in the second display area to the second target brightness.
Optionally, the adjusting, according to the next display brightness level of the first display area, the main gamma curve of the first display area corresponding to the next display brightness level to obtain the adjusted second display brightness includes:
adjusting the current display brightness level to a next display brightness level;
determining a third target brightness according to a main gamma curve corresponding to a next display brightness level of the first display area;
and adjusting the current display brightness of the first display area until the third target brightness, wherein the third target brightness is used as the second display brightness.
Optionally, the adjusting the display brightness according to the adjusted display brightness of the main gamma curve corresponding to the next display brightness level by the sub gamma curve corresponding to the next display brightness level includes:
determining the third target brightness as a fourth target brightness;
and adjusting the current display brightness of the second display area until the fourth target brightness.
Optionally, when the sub-gamma curve of the second display region corresponding to the current display brightness level and the main gamma curve of the first display region corresponding to the next display brightness level are adjusted at the same time, the same data signal line is adopted to provide data voltage for the first display region and the second display region in a time sharing mode.
In a second aspect, an embodiment of the present invention further provides an apparatus for adjusting a gamma curve, including:
the first adjusting unit is used for adjusting a main gamma curve of the first display area corresponding to the current display brightness grade according to the current display brightness grade of the first display area to obtain adjusted first display brightness; wherein, different display brightness levels correspond to different main gamma curves;
the second adjusting unit is used for adjusting a secondary gamma curve of a second display area corresponding to the current display brightness level according to the first display brightness, and adjusting a primary gamma curve of the first display area corresponding to the next display brightness level according to the next display brightness level of the first display area to obtain adjusted second display brightness; wherein, different display brightness levels correspond to different sub-gamma curves;
and the third adjusting unit is used for adjusting the secondary gamma curve of the second display area corresponding to the next display brightness level according to the second display brightness.
According to the technical scheme of the embodiment of the invention, the main gamma curve of the first display area corresponding to the current display brightness level is adjusted according to the current display brightness level of the first display area to obtain the adjusted first display brightness, the auxiliary gamma curve of the second display area corresponding to the current display brightness level is adjusted according to the adjusted display brightness of the main gamma curve corresponding to the current display brightness level, and the main gamma curve of the first display area corresponding to the next display brightness level is adjusted according to the next display brightness level of the first display area to obtain the adjusted second display brightness, so that the time length for sequentially adjusting different gamma curves can be reduced, and the adjustment efficiency of the gamma curves is improved.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a schematic diagram illustrating a partition of different display luminance value intervals according to an embodiment of the present disclosure;
FIG. 3 is a schematic diagram of a prior art adjustment sequence for a gamma curve;
FIG. 4 is a flowchart illustrating a method for adjusting a gamma curve according to an embodiment of the present invention;
FIG. 5 is a schematic flow chart illustrating another method for adjusting a gamma curve according to an embodiment of the present invention;
FIG. 6 is a schematic flow chart illustrating another method for adjusting a gamma curve according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a gamma curve adjustment structure provided in the present invention;
FIG. 8 is a schematic diagram of another gamma curve adjustment configuration provided by the practice of the present invention;
fig. 9 is a schematic structural diagram of an adjusting apparatus for gamma curve according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure. As shown in fig. 1, the display panel includes a normal display area 11 and a transparent display area 12, and the light transmittance of the transparent display area 12 is greater than that of the normal display area 11, so that the light emitting devices disposed in the transparent display area 12 are different from the light emitting devices disposed in the normal display area 11 in light emitting material, so that the electrical property and the light emitting property of the light emitting devices are different, and the light emitting luminance of the transparent display area 12 is consistent with that of the normal display area 11. The light emitting characteristics of the transparent display area 12 and the normal display area 11 are different, so that different gamma curves are required to adjust the brightness, so as to ensure that the brightness and the color of the transparent display area 12 and the normal display area 11 are consistent. Moreover, under the condition of different display brightness levels, the transparent display area 12 and the normal display area 11 respectively correspond to multiple sets of gamma curve values, that is, under the condition of different display brightness levels, the transparent display area 12 and the normal display area 11 respectively correspond to different gamma curves, so that the transparent display area 12 and the normal display area 11 can maintain uniform brightness and color under the condition of different display brightness levels. Since the transparent display area 12 and the normal display area 11 respectively correspond to different gamma curves under different display brightness levels, the adjustment time is long and the efficiency is low when the gamma curves are sequentially adjusted. Exemplarily, fig. 2 is a schematic diagram illustrating a division of different display luminance value intervals according to an embodiment of the present application. As shown in fig. 2, different Display Brightness Values (DBV) can be divided into three intervals, 0-a, a-b and b-c, respectively. The display brightness value in each interval corresponds to a display brightness level. Within each interval, the transparent display area 12 and the normal display area 11 respectively correspond to one gamma curve, which may be, for example, 12gamma1, 12gamma2, 12gamma3 and 11gamma1, 11gamma2 and 11gamma3, so that under the condition of different display brightness levels, the transparent display area 12 and the normal display area 11 have 6 gamma curves in total. FIG. 3 is a schematic diagram of a gamma curve adjustment sequence provided by the prior art. As shown in fig. 3, the display brightness value may be adjusted to the b-c interval, then the gamma curve corresponding to the normal display area 11, i.e. 11gamma1 curve, is adjusted to the a-b interval after the adjustment is completed, then the gamma curve corresponding to the normal display area 11, i.e. 11gamma2 curve, and so on, and then the 11gamma3 curve is adjusted. The same procedure is followed for the transparent display region 12, and the three gamma curves need to be adjusted in sequence. The adjustment of all gamma curves needs 6 times, the adjustment process of the gamma curves takes long time, and the efficiency is low.
In view of the above technical problems, an embodiment of the present invention provides a method for adjusting a gamma curve. The method can be applied to the case that the display panel comprises different display areas, and each display area has different gamma curves under the condition of different display brightness levels. The method can be realized by a gamma curve adjusting device. Fig. 4 is a flowchart illustrating a method for adjusting a gamma curve according to an embodiment of the invention. As shown in fig. 4, the method includes:
s110, adjusting a main gamma curve of the first display area corresponding to the current display brightness level according to the current display brightness level of the first display area to obtain adjusted first display brightness; wherein, different display brightness levels correspond to different main gamma curves;
specifically, the first display area may be a normal display area of the display panel, and may also be referred to as a main screen of the display panel. The display brightness value is used for representing the display brightness corresponding to the maximum gray scale in the display panel. DBVs can be classified into different brightness levels, i.e., display brightness levels. The larger the display brightness level is, the higher the display brightness corresponding to the maximum gray scale in the display panel is. When the display brightness corresponding to the maximum gray scale in the display panel is increased, the display brightness corresponding to other gray scales is also adaptively increased, that is, the display brightness corresponding to different gray scales is increased. At this time, different display brightness levels can be set to correspond to different gamma curves, so as to satisfy the requirement that the display panel maintains uniform brightness and color under the condition of different brightness levels. I.e. the first display area has different main gamma curves corresponding to different display brightness levels. In the adjusting process of the gamma curve, the current display brightness level of the display panel is determined, then the main gamma curve corresponding to the current display brightness level in the first display area is determined according to the current display brightness level, the display brightness of the first display area is adjusted according to the main gamma curve corresponding to the current display brightness level, the adjusted display brightness of the first display area meets the main gamma curve corresponding to the current display brightness level, and at the moment, the display brightness of the first display area is the first display brightness. Illustratively, the display brightness levels of the display panel are respectively three brightness levels, namely a first level, a second level and a third level, and each level comprises a plurality of display brightness values. The first display area corresponds to a first main gamma curve, a second main gamma curve and a third main gamma curve respectively under the condition of different brightness levels. The current display brightness grade can be set as a first grade, the main gamma curve of the first display area corresponding to the first grade display brightness grade is a first main gamma curve, the display brightness of the first display area can be adjusted to meet the first main gamma curve, and adjustment of the first main gamma curve is achieved.
S120, adjusting an auxiliary gamma curve of the second display area corresponding to the current display brightness level according to the first display brightness, and adjusting a main gamma curve of the first display area corresponding to the next display brightness level according to the next display brightness level of the first display area to obtain adjusted second display brightness; wherein, different display brightness levels correspond to different sub-gamma curves;
specifically, the sub-gamma curve of the second display region may correspond to the main gamma curve of the first display region. That is, the second display region has different sub-gamma curves corresponding to different display brightness levels, and one sub-gamma curve corresponds to one main gamma curve under the same display brightness level. Under the condition of the current display brightness level, the first display brightness is obtained after the adjustment of the main gamma curve of the first display area corresponding to the current display brightness level is completed, the first display brightness can be used as the target display brightness of the second display area, and the auxiliary gamma curve of the second display area corresponding to the current display brightness level is adjusted, so that the display brightness of the auxiliary gamma curve corresponding to the current display brightness level is consistent with the display brightness of the main gamma curve corresponding to the current display brightness level of the first display area under the condition of the current display brightness level of the second display area, and the brightness uniformity of the display panel is improved. Illustratively, the display brightness levels are divided into a first level, a second level and a third level, and the second display area corresponds to the first sub-gamma curve, the second sub-gamma curve and the third sub-gamma curve respectively under different brightness levels. The current display brightness level is set to be the first level, the sub-gamma curve of the second display area corresponding to the first level display brightness level is the first sub-gamma curve, at the moment, the display brightness of the second display area can be adjusted to the target display brightness, the display brightness of the first sub-gamma curve is adjusted to be consistent with the display brightness of the first main gamma curve, the adjustment of the first sub-gamma curve is achieved, and the brightness uniformity of the display panel is improved.
In addition, when the sub-gamma curve corresponding to the current display brightness level in the second display area is adjusted according to the adjusted display brightness of the main gamma curve corresponding to the current display brightness level, the current display brightness level can be changed to the next display brightness level at the same time, then the main gamma curve corresponding to the first display area in the first display area is determined according to the next display brightness level, the display brightness of the first display area is adjusted according to the main gamma curve corresponding to the next display brightness level, so that the display brightness of the first display area meets the main gamma curve corresponding to the next display brightness level, and at this time, the display brightness of the first display area is the second display brightness. For example, the next display brightness level may be a second-level display brightness level, and the main gamma curve of the first display region corresponding to the second-level display brightness level is a second main gamma curve, at this time, the display brightness of the first display region may be adjusted to meet the second main gamma curve, so as to implement adjustment of the second main gamma curve.
Therefore, in the process, the sub-gamma curve corresponding to the current display brightness level in the second display area and the main gamma curve corresponding to the next display brightness level in the first display area can be adjusted at the same time, so that the time duration for sequentially adjusting different gamma curves can be reduced, and the adjustment efficiency of the gamma curves can be improved.
S130, adjusting the secondary gamma curve of the second display area corresponding to the next display brightness level according to the second display brightness.
Specifically, after the adjustment according to the main gamma curve corresponding to the next display brightness level is completed, the display brightness may be used as another target display brightness of the second display area, and the sub gamma curve corresponding to the next display brightness level of the second display area is adjusted, so that the display brightness of the sub gamma curve corresponding to the next display brightness level in the condition of the next display brightness level of the second display area is consistent with the display brightness of the main gamma curve corresponding to the next display brightness level in the condition of the next display brightness level of the first display area, and the brightness uniformity of the display panel is improved. For example, the next display brightness level may be a display brightness level at a second level, and the sub-gamma curve of the second display area corresponding to the second display brightness level is a second gamma curve, in which case, the display brightness level of the second display area may be adjusted to a further target display brightness, so that the display brightness of the second sub-gamma curve is adjusted to be consistent with the display brightness of the second main gamma curve, thereby implementing adjustment of the second sub-gamma curve and improving brightness uniformity of the display panel.
And so on, when the brightness levels of the display brightness levels comprise multiple levels, the next display brightness level can be repeatedly set to be different display brightness levels, the sub-gamma curve of the second display area corresponding to the current display brightness level is adjusted according to the display brightness adjusted by the main gamma curve corresponding to the current display brightness level in sequence, and the main gamma curve of the first display area corresponding to the next display brightness level is adjusted according to the next display brightness level of the first display area at the same time until the main gamma curves and the sub-gamma curves corresponding to all the display brightness levels are adjusted, so that the adjustment of all the gamma curves in the display panel is completed. Illustratively, when the next display brightness level is the second level display brightness level and the display brightness levels include the third level, when the second display area is adjusted according to the adjusted display brightness of the main gamma curve corresponding to the next display brightness level and the sub gamma curve corresponding to the next display brightness level, the display brightness level is set as the third level display brightness level, and the main gamma curve corresponding to the third level display brightness level of the first display area is adjusted according to the third level display brightness level of the first display area. And then adjusting the secondary gamma curve of the second display area corresponding to the third-level display brightness level according to the adjusted display brightness of the primary gamma curve corresponding to the third-level display brightness level. At the moment, the adjustment of the gamma curve only needs 4 times, and compared with the 6 times of adjustment in the prior art, the adjustment time can be saved by one third.
It should be noted that the more the brightness levels of the display brightness levels are, the more the times of adjusting the main gamma curve corresponding to the next display brightness level of the first display area and the sub gamma curve corresponding to the current display brightness level of the second display area are, the more the time duration for adjusting the gamma curves can be reduced, and the adjustment efficiency of the gamma curves can be improved.
According to the technical scheme of the embodiment, the main gamma curve of the first display area corresponding to the current display brightness level is adjusted according to the current display brightness level of the first display area to obtain the first display brightness, the auxiliary gamma curve of the second display area corresponding to the current display brightness level is adjusted according to the first display brightness, and meanwhile, the main gamma curve of the first display area corresponding to the next display brightness level is adjusted according to the next display brightness level of the first display area to obtain the second display brightness, so that the time length for sequentially adjusting different gamma curves can be reduced, and the adjustment efficiency of the gamma curves is improved.
FIG. 5 is a flowchart illustrating another gamma curve adjusting method according to an embodiment of the present invention. As shown in fig. 5, the method includes:
s210, acquiring the current display brightness and the current display brightness level of a first display area by adopting a first optical device;
specifically, the first optical device may be an optical device such as a camera, and may be disposed in the first display area, and configured to acquire the current display brightness of the first display area. The current display brightness level can be obtained according to a brightness adjusting key on the display panel, and a user can change the input display brightness level through the brightness adjusting key.
It should be noted that the first optical device may be disposed at any position of the first display area, and preferably, the first optical device may be disposed at the center of the first display area, so as to improve accuracy of the current display brightness of the first display area collected by the first optical device.
S220, determining first target brightness according to a main gamma curve corresponding to the current display brightness level of the first display area;
specifically, the current brightness level of the display panel can be determined according to the current display brightness level, each brightness level corresponds to one gamma curve, after the current display brightness level is determined, a corresponding main gamma curve can be determined according to the brightness level where the current display brightness level is located, and target brightness corresponding to different gray scales of the first display area is determined according to the main gamma curve and serves as first target brightness corresponding to the current display brightness level of the first display area.
And S230, adjusting the current display brightness of the first display area until the first target brightness, wherein the first target brightness is used as the first display brightness.
Specifically, the current display brightness of the first display area may be acquired by the first optical device. When the current display brightness of the first display area is adjusted, the current display brightness of the first display area may be collected through the first optical device, then the current display brightness of the first display area is compared with the first target brightness, and the display brightness of the first display area is adjusted according to the comparison result, so that the current display brightness of the first display area tends to the first target brightness. After the adjustment, the display brightness of the first display area can be collected again through the first optical device, and the above process is repeated until the display brightness of the first display area is adjusted to the first target brightness and is used as the first display brightness.
Illustratively, the adjustment of the display brightness can be in various forms, for example, the display brightness can be adjusted by adjusting the data voltage, and the display brightness can also be adjusted by controlling the light-emitting time through the light-emitting control signal.
Optionally, adjusting the current display brightness of the first display area to the first target brightness includes:
and adjusting the current display brightness of each gray scale in the first display area to a first target brightness.
Specifically, the display panel may display a plurality of gray scales, each of which may correspond to a first target brightness. When the current display brightness of the first display area is adjusted, the current display brightness of each gray scale can be adjusted to the first target brightness corresponding to the current display brightness, and therefore the adjustment of the main gamma curve of the first display area corresponding to the current display brightness level is completed.
It should be noted that, when adjusting the current display brightness of each gray scale, the current display brightness of a part of gray scales may be selectively adjusted to the corresponding first target brightness, and then the current display brightness of all gray scales is adjusted to the corresponding first target brightness according to the current display brightness of the part of gray scales.
S240, adjusting the auxiliary gamma curve of the second display area corresponding to the current display brightness grade according to the display brightness adjusted by the main gamma curve corresponding to the current display brightness grade, and adjusting the main gamma curve of the first display area corresponding to the next display brightness grade according to the next display brightness grade of the first display area to obtain second display brightness; wherein, different display brightness levels correspond to different sub-gamma curves;
and S250, adjusting the secondary gamma curve of the second display area corresponding to the next display brightness level according to the second display brightness.
FIG. 6 is a flowchart illustrating another method for adjusting a gamma curve according to an embodiment of the present invention. As shown in fig. 6, the method includes:
s310, acquiring the current display brightness and the current display brightness level of a first display area by adopting a first optical device;
s320, determining first target brightness according to a main gamma curve corresponding to the current display brightness level of the first display area;
s330, adjusting the current display brightness of the first display area until the first target brightness, wherein the first target brightness is used as the first display brightness.
S340, determining the first target brightness as a second target brightness;
specifically, after the current display brightness of the first display area is adjusted to the first target brightness and the adjustment of the main gamma curve of the first display area corresponding to the current display brightness level is completed, the first target brightness may be obtained and used as the second target brightness of the sub gamma curve corresponding to the current display brightness level of the second display area, so as to ensure that the display brightness of the first display area and the display brightness of the second display area are relatively consistent when the current display brightness level is reached.
Optionally, before determining that the first target brightness is the second target brightness of the sub-gamma curve corresponding to the current display brightness level of the second display area, the method includes:
acquiring a first target brightness by adopting a second optical device; the second optical device is arranged on one side of the first display area close to the second display area.
Specifically, the second optical device may be an optical device such as a camera, and may be disposed in the first display region near the second display region. FIG. 7 is a schematic diagram of a gamma curve adjustment structure according to an embodiment of the present invention. As shown in fig. 7, the display panel includes a first display area 101 and a second display area 102, the first optical device 201 is disposed in the first display area 101, and when the first target brightness is obtained, the second optical device 202 is disposed on a side of the first display area 101 close to the second display area 102, and collects the first target brightness of the first display area 101 and uses the first target brightness as the second target brightness. When the current display brightness of the second display area 102 is adjusted to the second target brightness, the display brightness of the second display area 102 can be made to be consistent with the display brightness of the first display area 101 close to the second display area 102, the influence of the voltage drop on the signal line on the display uniformity of the first display area 101 and the second display area 102 is reduced, and the display uniformity of the first display area 101 and the second display area 102 is improved. Illustratively, the second optical device 202 is disposed in the display area in the same row as the second display area 102 in the first display area 101, so that the influence of the voltage drop on the data signal line on the display uniformity of the first display area 101 and the second display area 102 can be reduced, and the display uniformity of the first display area 101 and the second display area 102 can be improved.
And S350, adjusting the current display brightness of the second display area until the second target brightness.
Specifically, fig. 8 is a schematic structural diagram of another gamma curve adjustment provided by the implementation of the present invention. As shown in fig. 8, after acquiring the second target brightness, the second optical device 202 may be moved to the second display area 102. When the current display brightness of the second display area 102 is adjusted, the display brightness of the second display area 102 is collected by the second optical device 202 and is used as the current display brightness of the second display area 102, then the current display brightness of the second display area 102 is compared with the second target brightness, and the display brightness of the second display area 102 is adjusted according to the comparison result, so that the current display brightness of the second display area 102 tends to the second target brightness. After the adjustment, the display brightness of the second display area 102 may be collected again through the second optical device 202, and the above process may be repeated until the display brightness of the second display area 102 is adjusted to the second target brightness.
Optionally, adjusting the current display brightness of the second display area to the second target brightness includes:
acquiring the current display brightness of each gray scale in the second display area by adopting a second optical device; the second optical device moves from the first display area to the second display area;
specifically, the second display area may display a plurality of gray scales, different gray scales have different display luminances, and each gray scale may be set to correspond to one second target luminance. When the second optical device moves from the first display area to the second display area, the current display brightness of each gray scale can be acquired through the second optical device.
And adjusting the current display brightness of each gray scale in the second display area to a second target brightness.
Specifically, when the current display brightness of the second display area is adjusted, the current display brightness of each gray scale may be adjusted to the second target brightness corresponding thereto, so as to complete the adjustment of the sub-gamma curve of the second display area corresponding to the current display brightness level.
It should be noted that, when adjusting the current display brightness of each gray scale, the current display brightness of a part of gray scales may be selectively adjusted to the corresponding second target brightness, and then the current display brightness of all gray scales is adjusted to the corresponding second target brightness according to the current display brightness of the part of gray scales.
S360, adjusting the current display brightness level to the next display brightness level;
specifically, when the second optical device is located in the second display region for acquiring the sub-gamma curve of the second display region adjusted by the current display brightness of the second display region, the display brightness level can be set to the next display brightness level at the same time for adjusting the gamma curve corresponding to the next display brightness level according to the next display brightness level. Wherein the next display brightness level is a different display brightness level than the current display brightness level to adjust the next main gamma curve. For example, the next display brightness level may be set as a second-level display brightness level, and the main gamma curve of the first display area corresponding to the second-level display brightness level may be a second main gamma curve.
S370, determining a third target brightness according to the main gamma curve corresponding to the next display brightness level of the first display area;
specifically, after the next display brightness level is determined, a corresponding main gamma curve may be determined according to the brightness level of the next display brightness level, and target brightness corresponding to different gray scales of the first display area is determined according to the main gamma curve, and is used as third target brightness corresponding to the next display brightness level of the first display area.
And S380, adjusting the current display brightness of the first display area until the third target brightness, wherein the third target brightness is used as the second display brightness.
In particular, the current display brightness of the first display region can likewise be detected again by the first optical device in the case of the next display brightness level. When the current display brightness of the first display area is adjusted, the current display brightness of the first display area may be collected through the first optical device, then the current display brightness of the first display area is compared with the third target brightness, and the display brightness of the first display area is adjusted according to the comparison result, so that the current display brightness of the first display area tends to the third target brightness. After the adjustment, the display brightness of the first display area can be collected again through the first optical device, and the above process is repeated until the display brightness of the first display area is adjusted to the first target brightness and is used as the second display brightness.
Optionally, when the current display brightness of the first display area is adjusted to the third target brightness, the current display brightness of each gray scale of the first display area may be adjusted to the third target brightness.
And S390, adjusting the sub-gamma curve of the second display area corresponding to the next display brightness level according to the second display brightness.
Specifically, under the condition of the next display brightness level, after the adjustment of the main gamma curve of the first display area corresponding to the next display brightness level is completed, the second display brightness can be obtained, and the second display brightness is used as the target display brightness of the second display area, and the sub gamma curve of the second display area corresponding to the next display brightness level is adjusted, so that the display brightness of the sub gamma curve corresponding to the next display brightness level under the condition of the next display brightness level of the second display area is consistent with the display brightness of the main gamma curve corresponding to the next display brightness level under the condition of the next display brightness level of the first display area, and the brightness uniformity of the display panel is improved. For example, the sub-gamma curve of the second display region corresponding to the next display brightness level may be a second sub-gamma curve, and at this time, the display brightness of the second sub-gamma curve may be adjusted to the target display brightness by adjusting the display brightness of the second display region, so that the display brightness of the second sub-gamma curve is adjusted to be consistent with the display brightness of the second main gamma curve, thereby implementing adjustment of the second sub-gamma curve and improving brightness uniformity of the display panel.
Optionally, determining the third target brightness as a fourth target brightness;
specifically, after the next display brightness of the first display area is adjusted to the third target brightness and the adjustment of the main gamma curve of the first display area corresponding to the next display brightness level is completed, the third target brightness may be obtained and used as the fourth target brightness of the sub gamma curve corresponding to the next display brightness level of the second display area, so as to ensure that the display brightness of the first display area and the display brightness of the second display area are relatively consistent when the next display brightness level is reached.
Optionally, before determining that the third target brightness is the fourth target brightness of the sub-gamma curve corresponding to the next display brightness level of the second display area, the second optical device may be moved from the second display area to the first display area, so as to collect the third target brightness through the second optical device, and use the third target brightness as the fourth target brightness. Illustratively, the position of the second optical device is as shown in FIG. 7.
And adjusting the current display brightness of the second display area until the fourth target brightness.
Specifically, after the fourth target brightness is acquired, the second optical device may be moved to the second display area. Illustratively, the position of the second optical device is as shown in FIG. 8. When the current display brightness of the second display area is adjusted, the display brightness of the second display area is collected through the second optical device and is used as the current display brightness of the second display area, then the current display brightness of the second display area is compared with the fourth target brightness, and the display brightness of the second display area is adjusted according to the comparison result, so that the current display brightness of the second display area tends to the fourth target brightness. After the adjustment, the display brightness of the second display area can be collected again through the second optical device, and the above process is repeated until the display brightness of the second display area is adjusted to the fourth target brightness.
It should be noted that, when the current display brightness of the second display area is adjusted to the fourth target brightness, the second optical device may be used to obtain the current display brightness of each gray scale of the second display area, and then adjust the current display brightness of each gray scale of the second display area to the fourth target brightness.
On the basis of the technical scheme, when the auxiliary gamma curve of the second display area corresponding to the current display brightness level and the main gamma curve of the first display area corresponding to the next display brightness level are adjusted simultaneously, the same data signal line is adopted to provide data voltage for the first display area and the second display area in a time sharing mode.
In particular, with continued reference to fig. 8, the first display area 101 at least partially surrounds the second display area 102, and the pixel cells of the first display area 101 and the pixel cells of the second display area 102 may collectively form a matrix form. The same row of pixel units are connected with the same scanning signal line, and the same column of pixel units are connected with the same data signal line. When the display panel is driven to display, the first display area 101 and the second display area 102 are driven row by row in the row direction, and the first display area 101 and the second display area 102 are driven column by column in the column direction. When the display panel is driven to the column where the second display area 102 is located, the data voltage corresponding to the second display area 102 is provided to the second display area 102 in the driving process of the row where the second display area 102 is located through the data signal line, so that the sub gamma curve adjustment of the second display area 102 is realized, and then the data voltage corresponding to the first display area 101 is provided to the first display area 101 in the driving process of the row where the first display area 101 is located through the data signal line, so that the main gamma curve adjustment of the first display area 101 is realized. Therefore, the main gamma curve of the first display area 101 and the auxiliary gamma curve of the second display area 102 can be adjusted at the same time, the time length for adjusting different gamma curves in sequence is reduced, and the adjusting efficiency of the gamma curves is improved.
The embodiment of the invention also provides a gamma curve adjusting device. Fig. 9 is a schematic structural diagram of an adjusting apparatus for gamma curve according to an embodiment of the present invention. As shown in fig. 9, the apparatus includes:
the first adjusting unit 100 is configured to adjust a main gamma curve of the first display area corresponding to the current display brightness level according to the current display brightness level of the first display area to obtain an adjusted first display brightness; wherein, different display brightness levels correspond to different main gamma curves;
a second adjusting unit 200, configured to adjust a sub-gamma curve of the second display area corresponding to the current display brightness level according to the first display brightness, and adjust a main gamma curve of the first display area corresponding to the next display brightness level according to the next display brightness level of the first display area to obtain an adjusted second display brightness; wherein, different display brightness levels correspond to different sub-gamma curves;
and a third adjusting unit 300 for adjusting the sub-gamma curve of the second display region corresponding to the next display brightness level according to the second display brightness.
According to the technical scheme of the embodiment, the first adjusting unit is used for adjusting the main gamma curve of the first display area corresponding to the current display brightness grade according to the current display brightness grade of the first display area to obtain the adjusted first display brightness, then the second adjusting unit is used for adjusting the auxiliary gamma curve of the second display area corresponding to the current display brightness grade according to the first display brightness, and meanwhile, the main gamma curve of the first display area corresponding to the next display brightness grade is adjusted according to the next display brightness grade of the first display area to obtain the adjusted second display brightness, so that the time for sequentially adjusting different gamma curves can be reduced, and the adjusting efficiency of the gamma curves is improved.
On the basis of the above embodiment, the first adjusting unit includes:
the first acquisition module is used for acquiring the current display brightness and the current display brightness grade of the first display area by adopting a first optical device;
the first target brightness determining module is used for determining first target brightness according to a main gamma curve corresponding to the current display brightness level of the first display area;
and the first adjusting module is used for adjusting the current display brightness of the first display area until the first target brightness, and the first target brightness is used as the first display brightness.
Specifically, the first adjusting module can adjust the current display brightness of each gray scale of the first display area to the first target brightness.
On the basis of the above embodiments, the second adjustment unit includes:
the second target brightness determining module is used for determining the first target brightness as a second target brightness;
and the second adjusting module is used for adjusting the current display brightness of the second display area until the second target brightness.
In particular, the second adjusting module may be specifically configured to:
acquiring the current display brightness of each gray scale in the second display area by adopting a second optical device; the second optical device moves from the first display area to the second display area;
and adjusting the current display brightness of each gray scale in the second display area to a second target brightness.
Optionally, the second adjusting unit may further include:
the second acquisition module is used for acquiring the first target brightness by adopting a second optical device; the second optical device is arranged on one side of the first display area close to the second display area.
On the basis of the above embodiments, the second adjusting unit may further include:
the third adjusting module is used for adjusting the current display brightness level to the next display brightness level;
the third target brightness determining module is used for determining third target brightness according to a main gamma curve corresponding to the next display brightness level of the first display area;
and the fourth adjusting module is used for adjusting the current display brightness of the first display area until a third target brightness, and the third target brightness is used as the second display brightness.
Optionally, the third adjusting unit comprises:
the fourth target brightness determining module is used for determining the third target brightness as the fourth target brightness;
and the fifth adjusting module is used for adjusting the current display brightness of the second display area until the fourth target brightness.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A method for adjusting a gamma curve, comprising:
adjusting a main gamma curve of the first display area corresponding to the current display brightness grade according to the current display brightness grade of the first display area to obtain adjusted first display brightness; wherein, different display brightness levels correspond to different main gamma curves;
adjusting a secondary gamma curve of a second display area corresponding to the current display brightness level according to the first display brightness, and adjusting a primary gamma curve of the first display area corresponding to the next display brightness level according to the next display brightness level of the first display area to obtain adjusted second display brightness; wherein, different display brightness levels correspond to different sub-gamma curves;
and adjusting a secondary gamma curve of the second display area corresponding to the next display brightness level according to the second display brightness.
2. The method for adjusting a gamma curve according to claim 1, wherein the adjusting the main gamma curve of the first display region corresponding to the current display brightness level according to the current display brightness level of the first display region to obtain the adjusted first display brightness comprises:
acquiring the current display brightness and the current display brightness grade of the first display area by adopting a first optical device;
determining first target brightness according to a main gamma curve corresponding to the current display brightness level of the first display area;
and adjusting the current display brightness of the first display area until the first target brightness, wherein the first target brightness is used as the first display brightness.
3. The method for adjusting a gamma curve according to claim 2, wherein the adjusting the current display brightness of the first display region to the first target brightness comprises:
and adjusting the current display brightness of each gray scale of the first display area to the first target brightness.
4. The method for adjusting a gamma curve according to claim 2, wherein the adjusting the sub-gamma curve of the second display region corresponding to the current display brightness level according to the first display brightness comprises:
determining the first target brightness as a second target brightness;
and adjusting the current display brightness of the second display area until the second target brightness.
5. The method for adjusting a gamma curve according to claim 4, wherein before determining the first target brightness as the second target brightness of the sub-gamma curve corresponding to the current display brightness level of the second display region, the method comprises:
acquiring the first target brightness by adopting a second optical device; the second optical device is arranged on one side of the first display area close to the second display area.
6. The method for adjusting a gamma curve according to claim 5, wherein the adjusting the current display brightness of the second display region to the second target brightness comprises:
acquiring the current display brightness of each gray scale of the second display area by adopting the second optical device; wherein the second optical device is moved from the first display area to the second display area;
and adjusting the current display brightness of each gray scale in the second display area to the second target brightness.
7. The method for adjusting a gamma curve according to claim 6, wherein the step of simultaneously adjusting the main gamma curve of the first display region corresponding to the next display brightness level according to the next display brightness level of the first display region to obtain the adjusted second display brightness comprises:
adjusting the current display brightness level to a next display brightness level;
determining a third target brightness according to a main gamma curve corresponding to a next display brightness level of the first display area;
and adjusting the current display brightness of the first display area until the third target brightness, wherein the third target brightness is used as the second display brightness.
8. The method for adjusting a gamma curve according to claim 7, wherein the adjusting the sub-gamma curve of the second display region corresponding to the next display brightness level according to the second display brightness comprises:
determining the third target brightness as a fourth target brightness;
and adjusting the current display brightness of the second display area until the fourth target brightness.
9. The method of claim 1, wherein when the sub-gamma curve corresponding to a current display brightness level in the second display region and the main gamma curve corresponding to a next display brightness level in the first display region are adjusted simultaneously, the same data signal line is used to provide data voltages for the first display region and the second display region.
10. An apparatus for adjusting a gamma curve, comprising:
the first adjusting unit is used for adjusting a main gamma curve of the first display area corresponding to the current display brightness grade according to the current display brightness grade of the first display area to obtain adjusted first display brightness; wherein, different display brightness levels correspond to different main gamma curves;
the second adjusting unit is used for adjusting a secondary gamma curve of a second display area corresponding to the current display brightness level according to the first display brightness, and adjusting a primary gamma curve of the first display area corresponding to the next display brightness level according to the next display brightness level of the first display area to obtain adjusted second display brightness; wherein, different display brightness levels correspond to different sub-gamma curves;
and the third adjusting unit is used for adjusting the secondary gamma curve of the second display area corresponding to the next display brightness level according to the second display brightness.
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