Patent Grant
12307956
This application claims the priority of Chinese Patent Application No. 202410346763.5, filed on Mar. 25, 2024, the content of which is incorporated by reference in its entirety.
The present disclosure generally relates to the field of display technologies and, more particularly, relates to a method for adjusting screen brightness, an apparatus for adjusting screen brightness and a computer device.
With the development of display panel technologies, customers' demand for the frame frequency of the display panel is getting higher and higher. In different application scenarios, display panels need to show a variety of different refresh frequencies. To meet customers' needs for frame frequencies of display panels, in the manufacturing process of the display panel, it is necessary to adjust the brightness of different Bands and different gamma bonding nodes at different refresh frequencies. The existing method is to adjust the register value of each gamma bonding node of each Band at each refresh frequency for each display panel to adjust the brightness. This method is very inefficient and seriously affects the capacity planning and configuration of the production line. The present disclosed methods for adjusting the brightness of the screen, apparatus for adjusting the brightness of the screen and computer devices are direct to solve such a problem and other problems in the arts.
One aspect of the present disclosure provides a method for adjusting brightness of a screen. The method includes determining corresponding at least one target gamma bonding node group based on a corresponding adjusted register value of a color channel of a sample pixel in a sample screen under different initial gamma bonding nodes and different refresh frequencies; for each target pixel in a target to-be-adjusted target screen, according to the corresponding adjusted register value of the color channel of the target pixel under different first combined display conditions, obtaining a first mapping function between a corresponding register value of the color channel of the target pixel when a reference refresh frequency is used as a display condition and a corresponding register value of the color channel of the target pixel when a target refresh frequency is used as the display condition, wherein a first combined display condition is obtained by combining target gamma nodes in the at least one gamma bonding node group and refresh frequencies of the reference refresh frequency and the target refresh frequency; for remaining gamma bonding nodes except the target gamma bonding nodes and according to the first mapping function and the adjusted register value of the color channel of the target pixel under the remaining gamma bonding nodes and the reference fresh frequency, determining a corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency; and according to the corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency, adjusting a display brightness of the target screen at the target refresh frequency.
Another aspect of the present disclosure includes an apparatus for adjusting brightness of a screen. The apparatus includes a first determination module configured to determine a corresponding at least one target gamma bonding node group based on a corresponding adjusted register value of a color channel of a sample pixel in the sample screen under different initial gamma bonding nodes and different refresh frequencies; an acquisition module configured to acquire, for each target pixel in a target to-be-adjusted screen and according to a corresponding adjusted register value of the color channel of the target pixel under different first combined display conditions, a first mapping function between a corresponding register value of the color channel of the target pixel when a reference refresh frequency is used as a display condition and a corresponding register value of the color channel of the target pixel when a target refresh frequency is used as a display condition, wherein the first combined display condition is obtained by combining the target gamma bonding node in the gamma bonding node group and refresh frequencies in the reference refresh frequency and the target refresh frequency; a second determination module configured to determine, for remaining gamma bonding nodes except the target gamma bonding node and according to the first mapping function and the corresponding adjusted register value of the color channel of the target pixel under the remaining gamma bonding nodes and the reference refresh frequency, a corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency; and an adjustment module configured to adjust the display brightness of the target screen at the target refresh frequency according to the corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency.
Another aspect of the present disclosure includes a computer device. The computer device includes a memory configured to store computer program; and a processor configured to execute the computer program to determine corresponding at least one target gamma bonding node group based on corresponding adjusted register values of a color channel of a sample pixel in a sample screen under different initial gamma bonding nodes and different refresh frequencies; for each target pixel in a target to-be-adjusted target screen, according to the corresponding adjusted register value of the color channel of the target pixel under different first combined display conditions, obtain a first mapping function between a corresponding register value of the color channel of the target pixel when a reference refresh frequency is used as a display condition and a corresponding register value of the color channel of the target pixel when a target refresh frequency is used as the display condition, wherein a first combined display condition is obtained by combining target gamma nodes in the at least one gamma bonding node group and refresh frequencies of the reference refresh frequency and the target refresh frequency; for remaining gamma bonding nodes except the target gamma bonding nodes and according to the first mapping function and the adjusted register value of the color channel of the target pixel under the remaining gamma bonding nodes and the reference fresh frequency, determined a corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency; and according to the corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency, adjust a display brightness of the target screen at the target refresh frequency.
Other aspects of the present disclosure can be understood by those skilled in the art in light of the description, the claims, and the drawings of the present disclosure.
To illustrate the technical solutions in the embodiments of the present disclosure more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present disclosure, for those of ordinary skill in the art, other drawings can also be obtained from these drawings without creative effort.
To make the purpose, technical solutions and advantages of the present disclosure more clear, the present disclosure will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present disclosure and are not used to limit the present application.
The screen brightness adjustment method provided by the embodiments of the present disclosure may be applied in the application environment as shown in
The step S202 may include determining corresponding at least one target gamma bonding node group based on the corresponding adjusted register values of the color channels of the sample pixels in the sample screen under different initial gamma bonding nodes and different refresh frequencies.
The target gamma bonding node group determined based on the sample screen may be used for screens of the same model as the sample screen. The sample pixels may be referred to as the pixels in the sample screen, and each pixel may include a red (R) channel, a green (G) channel and a blue (B) channel. The gamma bonding nodes may include multiple specific grayscales among the grayscales supported by the integrated circuit of the screen. The initial gamma bonding node (Gamma Node) may be supported by the integrated circuit of the sample screen. There are multiple gamma bonding nodes among the supported gamma bonding nodes. As shown in Table 1, the integrated circuit of the sample screen may support a total of 20 gamma bonding nodes. The initial gamma bonding nodes may include the 17 gamma bonding nodes selected from the 20 gamma bonding nodes. The initial gamma bonding nodes of the same model of screen may be same. Each refresh frequency may correspond to multiple Bands, and the Bands corresponding to different refresh frequencies of a same screen may be same, and the Bands of different screens of the same model may be also the same. Under each Band of each refresh frequency, the register value of each grayscale of each pixel may be different. For example, the sample screen may include a total of 10 Bands, and Table 1 shows the values of the register corresponding to the Band 3. The adjusted register value may refer to the register value obtained by adjusting the register value of the color channel of the pixel after changing the refresh frequency of the screen. As shown in Table 1, the register value may be 1033 when the refresh frequency of the R channel is at 120 Hz, Band3 and under gamma bonding node15. The target gamma bonding node group may be a combination of multiple initial gamma bonding nodes. As shown in Table 1, the initial gamma bonding nodes 5, 7, and 15 may form one target gamma bonding node group, the initial gamma bonding nodes 23, 31, 47, 63, 79, 111, 143, 175, 191, 207, 239, 255 may form another target gamma bonding node group. To avoid affecting optical visual effects of the screen the number of initial gamma bonding nodes in the target gamma bonding node group shall not be greater than a preset number. For example, the preset number may be 12.
Returning to
The target screen and the sample screen may be screens of a same model. The target pixel may refer to the pixel point in the target screen. The reference refresh frequency may be a refresh frequency selected from all possible refresh frequencies of the target screen. Different screens of the same model may select the same reference refresh frequency. For the reference refresh frequency, under different Bands and different initial gamma bonding nodes, the corresponding adjusted register value of each color channel of each pixel may be obtained through an adjustment. For example, 120 Hz in Table 1 may be the reference refresh frequency; and the target refresh frequency may be the remaining refresh frequencies among all possible refresh frequencies of the target screen except the reference refresh frequency. For the target screen, the target refresh frequency may only be adjusted under the target gamma bonding node to obtain the corresponding adjusted register value, the register value under the remaining gamma bonding nodes except the target gamma bonding node may be calculated based on the adjusted register value corresponding to the reference refresh frequency. For example, 60 Hz in Table 1 may be a target refresh frequency. The target gamma bonding node may include the maximum gamma bonding node and the minimum gamma bonding node in the target gamma bonding node group. In other embodiments, the target gamma bonding node may also be other gamma bonding nodes in the target gamma bonding node group. The gamma bonding node is not specifically limited in the embodiments of this disclosure.
Specifically, the first mapping function may be for each color channel of each target pixel in the target screen, and may be determined based on the adjusted register value of the color channel under the target gamma bonding node and the base refresh frequency and the adjusted register value of the color channel under the target gamma bonding node and the target refresh frequency.
Further, returning to
Specifically, for the remaining gamma bonding nodes in the target gamma bonding node group, the corresponding adjusted register value of each color channel of each target pixel under the remaining gamma bonding nodes and the reference refresh frequency may be substituted into the corresponding first mapping function, the calculated register value of each color channel of each target pixel under the remaining gamma bonding nodes and the target refresh frequency may be obtained by calculation.
Further, returning to
For each color channel of each target pixel of the target screen, if one wants to adjust the corresponding brightness of the color channel at the target refresh frequency, the register values of the color channel at all grayscales may need to be determined. All grayscales may include the target gamma bonding nodes, the remaining gamma bonding nodes and other grayscales. Among them, the register value of the color channel under the target gamma bonding node may be the corresponding adjusted register value, and the register value of the color channel under the remaining gamma bonding nodes may be the corresponding calculated register values, and the register value of the color channel at other grayscales may be obtained by the integrated circuit through the calculation based on the adjusted register value of the color channel under the target gamma bonding node and the calculated register value of the color channel at the remaining gamma bonding nodes.
In the above screen brightness adjustment method, at least one target gamma bonding node group may be first determined based on the sample screen, and then for the target to-be-adjusted screen, the first mapping function between the corresponding register value of the color channel of the target pixel when the reference refresh frequency is used as the display condition and the corresponding register value of the color channel of the target pixel when the target refresh frequency is used as the display condition based on the target gamma bonding node group, and the calculated register value corresponding to the color channel of the target pixel under the remaining gamma bonding nodes except the target bonding node and the target refresh frequency may be obtained according to the first mapping function. At the last, the brightness of the target screen at the target refresh frequency may be adjusted according to the calculated register value. In such a way, in the process of adjusting the display brightness at each target refresh frequency, only the register value of the target gamma bonding nodes needs to be adjusted, and the register values of the remaining gamma bonding nodes may be obtained by calculation, which may effectively improve the production efficiency of the target screen, thereby reducing product manufacturing costs.
In some embodiments, as shown in
Because the target gamma bonding node group under the corresponding target refresh frequency may be determined based on the adjusted register value of the sample screen under the reference refresh frequency and the adjusted register value of the sample screen under the target refresh frequency, it may be necessary to determine the adjusted register value of the sample screen under each target refresh frequency. The register difference ratio may be the ratio between the second register difference value and the corresponding first register difference value.
Specifically, 120 Hz in Table 1 may be the reference refresh frequency, and 60 Hz may be the target refresh frequency. The row data corresponding to the R channel, G channel and B channel corresponding to 120 Hz in Table 1 may be the adjusted register value of each color channel of a certain pixel in the sample screen at 120 Hz. The row data corresponding to the first three rows of R channel, G channel and B corresponding to 60 Hz may be the adjusted register value of each color channel of a certain pixel in the sample screen under 60 Hz. The register difference value of the first register under the R channel may be the row data corresponding to 120 HZ_ΔR in Table 1. The register difference value of the second register under the R channel may be the row data corresponding to 60 HZ_ΔR in Table 1. For example, the gamma bonding node 5 and the gamma bonding node 7 may be the pre-gamma bonding node and the post-gamma bonding node respectively. The register value of the R channel at 120 Hz and the gamma bonding node 5 may be 798. The register value of the R channel at the gamma bonding node 7 may be 832. The corresponding first register difference of the gamma bonding node 7 under the R channel may be 34. The register value of the R channel at 60 Hz and the gamma bonding node 5 may be 726. The register value of the R channel at 60 Hz and the gamma bonding node 7 may be 773. The corresponding second register difference of the gamma bonding node 7 under the R channel may be 47. Using the same method, the first register difference and the second register difference of the gamma bonding node 7 under the G channel and the B channel may be determined. The row data corresponding to Δk in Table 1 may be the register difference ratio of each initial gamma bonding node under the R channel. For example, the corresponding register difference ratio of the gamma bonding node 7 under the R channel may be 1.3824. The register difference ratios of the gamma bonding node 7 under the G channel and the B channel respectively may also be calculated through the corresponding first register value and second register value.
Because the corresponding brightness of the gamma bonding node 1 in Table 1 may be too low, it may be impossible to accurately calculate the calculated register value of the target screen under different target refresh frequencies and gamma bonding nodes. Accordingly, in the process of adjusting the brightness of the target screen, the register value corresponding to gamma bonding node 1 may be obtained through adjustment, for example, there may be no need to determine the target gamma bonding node group corresponding to the gamma bonding node 1 based on the sample screen.
In one embodiment, by calculating the register difference ratio corresponding to each initial gamma bonding node, a foundation may be laid for the subsequent determination of the target gamma bonding node group.
In some embodiments, as shown in
As shown in Table 1, according to the order of initial gamma bonding nodes from small to large, the corresponding register difference ratios of the gamma bonding nodes 3 to 255 in Table 1 under the R channel may be sorted to obtain the register difference ratio sequence. The gamma bonding node 3 may be included into an initial gamma bonding node group, and the difference between the register difference ratio corresponding to the gamma bonding node 5 and the register difference ratio corresponding to the gamma bonding node 3 may be calculated. If the difference is within the preset range, the gamma bonding node 5 may be included in the initial gamma bonding node group where gamma bonding node 3 is located. If the difference is not within the preset range, the gamma bonding node 3 may be included as a separate initial gamma bonding node group, and the gamma bonding node 5 may be incorporated into the new initial gamma bonding node group. The difference between the register difference ratio corresponding to the gamma bonding node 7 and the register difference ratio corresponding to gamma bonding node 5 may be calculated. If the difference is within the preset range, the gamma bonding node 7 may be included in the initial gamma bonding node group where the gamma bonding node 5 is located. If the difference is not within the preset range, the gamma bonding node 7 may be included in a new initial gamma bonding node group. The procedure may be repeated until the gamma bonding nodes 3 to 255 in Table 1 are all included in the initial gamma bonding node group. At the same time, in the G channel and B channel, the same method may also be used to include the gamma bonding nodes 3 to 255 in Table 1 into the corresponding initial gamma bonding node group. Due to the display characteristics of the screen, the initial gamma bonding node group determined finally in the R channel, G channel and B channel may be same.
In this embodiment, the initial gamma bonding node group may be determined based on the register difference ratio corresponding to each initial gamma bonding node, and the target gamma bonding node group may be determined based on the initial gamma bonding node group. Accordingly, the determined target gamma bonding node group may be more accurate.
In some embodiments, as shown in
Specifically, the second mapping function may be for each color channel of each sample pixel in the sample screen, may be determined based on the adjusted register value of the color channel at the reference gamma bonding point and the reference refresh frequency, and the adjusted register value of the color channel at the reference gamma bonding node and the target refresh frequency. For example, the gamma bonding nodes 3, 5, 7, and 15 in Table 1 may be in an initial gamma bonding node group, then the gamma bonding 3 and the gamma bonding node 15 may be the base gamma bonding nodes. As can be seen from Table 1, the corresponding adjusted register value under the gamma bonding node 3, the R channel and 120 Hz may be 763 Hz, the corresponding adjusted register value at the gamma bonding node 3, the R channel and 60 Hz may be 687 Hz, and the corresponding adjusted register value at the gamma bonding node 15, R channel and at 120 Hz may be 1033. The corresponding adjusted register value at the gamma bonding node 15, the R channel and 60 Hz may be 1021. Based on these 4 adjusted register values, the second mapping function of the initial gamma bonding node group under the R channel may be determined. After determining the second mapping function, the corresponding adjusted register value corresponding to the gamma bonding node 5 or the gamma bonding node 7 under the R channel and 120 Hz may be entered in the second mapping function, and the corresponding calculated register value of the gamma bond node 5 or the gamma bonding node 7 under the R channel and 60 Hz may be obtained. The last three rows of data corresponding to the R channel, the G channel and the B channel corresponding to 60 Hz in Table 1 may be the calculated register value of each color channel of a certain pixel of the sample screen at 60 Hz. At the same time, under the G channel and B channel, the same method may also be used to determine the corresponding second mapping function and the corresponding calculated register value of this initial gamma bonding node group.
In this embodiment, the calculated register value may be determined based on the second mapping function, and the target gamma bonding node group may be determined based on the calculated register value. Accordingly, the determined target gamma bonding node group may be more consistent with the need for the adjustment of the display brightness of the screen at different refresh frequencies.
In some embodiments, according to the corresponding adjusted register value of the color channel of the sample pixel under different second combined display conditions, the second mapping function between the corresponding register values of the color channel of the sample pixel when the target refresh frequency is used as the display condition may be determined, the method may include using the adjusted register value of the color channel of the sample pixel under the minimum reference gamma bonding node in the initial gamma bonding node group and the adjusted register value of the color channel of the sample pixel at the minimum reference gamma bonding node and the target refresh frequency as the first coordinate in the coordinate system. The horizontal and vertical axes of the coordinate system may respectively represent the register value at the reference refresh frequency and at the target refresh frequency. The method may also include using the adjusted register value of the color channel of the sample pixel under the maximum reference gamma bonding node in the initial gamma bonding node group and the reference refresh frequency and the adjusted register value of the color channel of the sample pixel at the maximum reference gamma bonding node and the target refresh frequency as a second coordinate in the coordinate system; and performing a curve fitting based on the first coordinate and the second coordinate to obtain the second mapping function between the register value corresponding to the color channel of the sample pixel when the reference refresh frequency is used as the display condition and the register value corresponding to the color channel of the sample pixel when the target refresh frequency is used as the display condition.
As shown in Table 1, in the initial gamma bonding node group composed of the gamma bonding nodes 3, 5, 7, and 15, the gamma bonding node 3 may be the minimum reference gamma bonding node, and the gamma bonding node 15 may be the maximum reference gamma bonding node. For the R channel, the corresponding adjusted register value at the gamma bonding node 3 and 120 Hz, and the corresponding adjusted register value at the gamma bonding node 3 and 60 Hz may be determined as the first coordinate, that is, the first coordinate may be (763, 687). The corresponding adjusted register value at the gamma bonding node 15 and 120 Hz and the corresponding adjusted register value at the gamma bonding node 15 and 60 Hz may be determined as the second coordinate, that is, the second coordinate may be (1033, 1021). A linear fitting may be performed on the first coordinate and the second coordinate, the second mapping function of the initial gamma bonding node group under the R channel may be obtained.
In Table 1, the gamma bonding node 23 to the gamma bonding node 255 may be another initial gamma bonding node group, and the gamma bonding node 23 and the gamma bonding node 255 may be the reference gamma bonding nodes in the gamma bonding node group. Using the same method, the second mapping functions of this initial gamma bonding node group under the R channel, the G channel and the B channel may be determined respectively. The second mapping functions under the R channel and the G channel are illustrated in
In this embodiment, based on the adjusted register value of each color channel under different refresh frequencies and reference gamma bonding nodes, the second mapping function of each initial gamma bonding node group under each color channel may be calculated, and the calculated register value determined by the second mapping function may be more accurate.
In some embodiments, the method for determining at least one target gamma bonding node group based on the calculated register value may include: for each sample pixel in the sample screen, obtaining the difference between the adjusted register value and the calculated register value of the color channel of the sample pixel under each remaining initial gamma bonding node and the target refresh frequency; and determining the initial gamma bonding point as the target gamma bonding node group when the difference between the adjusted register value and the calculated register value is within a second preset difference range.
As shown in Table 1, for the R channel and the initial gamma bonding group composed of the gamma bonding node 23 to the gamma bonding node 255, based on the corresponding second mapping function in
In this embodiment, only when the difference between the adjusted register value and the calculated register value is within the second preset difference range, the corresponding initial gamma bonding node group may be determined as the target gamma bonding node group, the target gamma bonding node group determined in this way may be more in line with the screen's adjustment requirements for display brightness at different refresh frequencies.
In some embodiments, as shown in
As shown in Table 1, for the initial gamma bonding node group composed of the gamma bonding node 23 to the gamma bonding node 255, if a difference between the adjusted register value and the calculated register value corresponding to the remaining initial gamma bonding node is not within the second preset difference range, the gamma bonding node 23 to the gamma bonding node 239 and the gamma binding node 31 to the gamma bonding node 255 may be respectively used as two new initial gamma bonding point groups, and the gamma bonding node 23 and the gamma bonding node 239 and the gamma bonding node 31 and the gamma bonding node 255 may be used as the reference gamma bonding nodes of the two groups respectively. For each new initial gamma bonding node group, whether the remaining initial gamma bonding nodes in each group satisfy the difference between the corresponding adjusted register value and the corresponding calculated register value are within the second preset difference range may be determined again. If the condition is not satisfied, the gamma bonding node 23 to the gamma bonding node 207, the gamma bonding node 31 to the gamma bonding node 239, and the gamma bonding node 47 to the gamma bonding node 255 may be used as three new initial gamma bonding point groups, and the gamma bonding node 23 and the gamma bonding node 207, the gamma bonding node 31 and the gamma bonding node 239, and the gamma bonding node 47 and the gamma bonding node 255 may respectively be used as the reference gamma bonding nodes of the three groups. The procedure may be repeated until the corresponding differences of all gamma bonding nodes from the gamma bonding node 23 to the gamma bonding node 255 are within the second preset difference range.
In one embodiment, when the difference between the adjusted register value and the calculated register value is not within the second preset difference range, a new initial gamma bonding node group may be re-determined, and the new initial gamma bonding node group may continue to be determined until the corresponding differences of all remaining initial gamma bonding nodes are within the second preset difference range. Accordingly, the determined target gamma bonding node group is more consistent with the adjustment needs of the display brightness of the screen at different refresh frequencies.
In some embodiments, as shown in
Among them, as shown in Table 1, the target gamma bonding node group finally determined based on the sample screen may include the gamma bonding node 3, the gamma bonding node 5 to the gamma bonding node 15, and the gamma bonding node 23 to the gamma bonding node 255 these 3 gamma bonding node groups. In the target gamma bonding node group from the gamma bonding node 23 to the gamma bonding node 255, the gamma bonding node 23 and the gamma bonding point 255 may be the minimum gamma bonding node and the maximum gamma bonding node respectively, and 120 Hz may be still used as the reference refresh frequency and 60 Hz may be used as the target refresh frequency of 60 Hz. For the R channel and the target screen, the corresponding adjusted register value under the gamma bonding node 23 and 120 Hz and the corresponding adjusted register value under the gamma bonding node 23 and 60 Hz may be determined as the first coordinate, and the corresponding adjusted register value under the gamma bonding node 255 and 120 Hz and the corresponding adjusted register value under the gamma bonding node 255 and 60 Hz may be determined as the second coordinate. By performing the linear fitting on the first coordinate and the second coordinate, the first mapping function of the target gamma bonding node group under the R channel may be obtained. Using the same method, for the target screen, the first mapping function corresponding to the target gamma bonding node group under the G channel and B channel may be calculated.
In this embodiment, based on the adjusted register value of each color channel under different refresh frequencies and target gamma node groups, the first mapping function of each target gamma bonding node group under each color channel may be calculated. The calculated register value based on the first mapping function may be more accurate.
In some embodiments, as shown in
For example, in the target gamma bonding node group from the gamma bonding node 23 to the gamma bonding node 255, the adjusted register value of the gamma bonding node 111 in the R channel and 120 Hz may be substituted into the first mapping function of the target gamma bonding node under the R channel, and the calculated register value of the gamma bonding node 111 under the R channel and 60 Hz may be obtained.
In this embodiment, the calculated register value may be determined based on the first mapping function, the subsequent adjustment result of the brightness adjustment of the target screen at the target refresh frequency based on the calculated register value may be more accurate.
In some embodiments, as shown in
The integrated circuit may use a linear interpolation method to calculate the grayscale register value of the remaining grayscales under the color channel based on the calculated register value and the adjusted register value. For each target pixel, after determining the corresponding calculated register value, adjusted register value or the grayscale register value of each color channel under all grayscales, the Vdata voltage of the target pixel may be adjusted based on these register values, thereby adjusting the brightness of the target pixel, and finally achieve the purpose of adjusting the display brightness of the target screen.
In this embodiment, the grayscale register value of the remaining grayscales in the color channel may be calculated based on the calculated register value and the adjusted register value, and the display brightness of the target screen may be adjusted based on the calculated register value, the adjusted register value, and the grayscale register value, making the adjusted results of the display brightness more accurate.
Compared with the brightness adjustment method that adjusts the register value of each gamma bonding node of each Band at each refresh frequency, in this embodiment, only all gamma bonding nodes of the reference refresh frequency need to be adjusted, for other refresh frequencies, only the register values of some gamma bonding nodes need to be adjusted. In such an approach, compared with the existing method, the cost in the screen production process may be effectively reduced and no production line capacity planning may be affected.
It should be understood that although the steps in the flowcharts involved in the above-mentioned embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless otherwise specified in this disclosure, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the above embodiments may include multiple steps or stages. These steps or stages are not necessarily executed at the same time, but may be completed at different times. The execution order of these steps or stages is not necessarily sequential but may be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.
The present disclosure also provides an apparatus for adjusting the brightness of a screen by implementing the above-mentioned screen brightness adjustment method. The implementation solution provided by this apparatus to solve the problem is similar to the implementation solution recorded in the above method. Therefore, the specific limitations in the one or more screen brightness adjustment apparatus embodiments provided below may be found in the above description of the screen brightness adjustment method, the details will not be repeated here.
The first determination module 1501 may be configured to determine the corresponding at least one target gamma bonding node group based on the corresponding adjusted register values of the color channels of the sample pixels in the sample screen under different initial gamma bonding nodes and different refresh frequencies.
The acquisition module 1502 may be configured to obtain, for each target to-be-adjusted pixel in the target screen, a first mapping function between the corresponding register value of the color channel of the target pixel when the reference refresh frequency is used as the display condition and the corresponding register value of the color channel of the target pixel when the target refresh frequency is used as the display condition according to the corresponding adjusted register value of the color channel of the target pixel under different first combined display conditions. The first combined display condition may be to combine the target gamma bonding node in the gamma bonding node group and the refresh frequencies in the reference refresh frequency and the target refresh frequency.
The second determination module 1503 may be configured to determine, for the remaining gamma bonding nodes except the target gamma bonding node, a corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency according to the first mapping function and the corresponding adjusted register value of the color channel of the target pixel under the remaining gamma bonding nodes and the reference fresh frequency.
The adjustment module 1504 may be configured to adjust the display brightness of the target screen at the target refresh frequency according to the corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency.
In some embodiments, as shown in
In some embodiments, as shown in
In some embodiments, as shown in
In some embodiments, the sub-acquisition unit 1802 may also be configured to determine the adjusted register value of the color channel of the sample pixel under the minimum reference gamma bonding node and the reference refresh frequency in the initial gamma bonding node group, and the adjusted register value of the color channel of the sample pixel under the minimum reference gamma bonding node and the target refresh frequency as the first coordinate in the coordinate system. The horizontal and vertical axes of the coordinate system may respectively represent the register value at the reference refresh frequency and the register value at the target refresh frequency. The sub-acquisition unit 1802 may also be configured to determine the adjusted register value of the color channel of the sample pixel under the maximum reference gamma bonding node in the initial gamma bonding node group and the reference refresh frequency and the adjusted register value of the color channel of the sample pixel under the maximum reference gamma bonding node and the target refresh frequency as the second coordinate in the coordinate system; and obtain the second mapping function between the corresponding register value of the color channel of the sample pixel when the reference refresh frequency is used as the display condition and the corresponding register value of the color channel of the sample pixel when the target refresh frequency is used as the display condition based on the curve fitting of the first coordinate and the second coordinate.
In some embodiments, the third sub-determination unit 1804 may also be used to obtain, for each sample pixel in the sample screen, the difference between the adjusted register value and the calculated register value of the color channel of the sample pixel under each remaining initial gamma bonding nodes and the target refresh frequency and determine the initial gamma bonding node group as the target gamma bonding node group when the difference between the adjusted register value and the calculated register value is within the second preset difference range.
In some embodiments, the third sub-determination unit 1804 may also be configured to determine the initial gamma bonding node in the initial gamma bonding node group as a new reference gamma bonding node to create a new initial gamma bonding node group when the corresponding difference between the adjusted register value and the calculated register value is not within the second preset difference range; determine the ordering of the different initial gamma bonding node group according to the number of initial gamma bonding nodes spaced between the two reference gamma bonding nodes; and in the order from large to small, sequentially for each initial gamma bonding node group, return the step for obtaining the second mapping function between the corresponding register value of the color channel of the sample pixel when the reference refresh frequency is used as the display condition and the corresponding register value of the color channel of the sample pixel when the target refresh frequency is used as the display condition according to the corresponding register value of the color channel of the sample pixel under different second combined display conditions and continue to execute until all the differences between the adjusted register value and the calculated register values are all within the second preset difference range.
In some embodiments, the acquisition module 1502 may further be configured to determine the adjusted register value of the color channel of the target pixel under the minimum gamma bonding node and the reference refresh frequency and the adjusted register value of the color channel of the target pixel under the minimum gamma bonding node and the target refresh frequency as the first coordinates in the coordinate system. The horizontal and vertical axes of the coordinate system may respectively represent the register value under the reference refresh frequency and the target refresh frequency; and obtain a first mapping function between the corresponding register value of the color channel when the reference fresh frequency is used as the display condition and the corresponding register value of the color channel of the target pixel when the target refresh frequency is used as the display condition based on the curve fitting of the first coordinate and the second coordinate.
In some embodiments, the second determination module 1503 may also be configured to, for the remaining gamma bonding nodes in the target gamma bonding node group, substitute the corresponding adjusted register value of the color channel of the target pixel under the remaining gamma bonding node and the reference refresh frequency into the first mapping function to obtain the corresponding calculated register value of the color channel of the target pixel at the remaining gamma bonding nodes and the target refresh frequency.
In some embodiments, the adjustment module 1504 may also be configured to send the corresponding calculated register value of the color channel of the target pixel under the remaining gamma bonding nodes and the target refresh frequency, and the corresponding adjusted register value of the color channel of the target pixel under the target gamma bonding node and the target refresh frequency to the integrated circuit of the target screen such that the integrated circuit may determine the grayscale register values of all remaining grayscales in the color channel except the gamma bonding nodes in the target gamma bonding node group based on the calculated register value and the adjusted register value; and adjust the display brightness of the target screen at the target refresh frequency based on the calculated register value, the adjusted register value and the grayscale register value.
Each module in the above-mentioned screen brightness adjustment device may be implemented in whole or in part by software, hardware, and combinations thereof. Each of the above modules may be embedded in or independent of the processor of the computer device in the form of hardware, or may be stored in the memory of the computer device in the form of software, such that the processor may call and execute the operations corresponding to the above modules.
The present disclosure also provides a computer device. The computer device may be a terminal, and its internal structure diagram may be as shown in
Those skilled in the art can understand that the structure shown in
In one embodiment, another computer device may also be provided. The computer device may include a memory and a processor. A computer program may be stored in the memory. When the processor executes the computer program, it may implement the steps in the above method embodiments.
It should be noted that the user information (including but not limited to user equipment information, user personal information, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) involved in this disclosure may be all information and data authorized by the user or fully authorized by all parties, and the collection, use and processing of relevant data may need to comply with relevant regulations.
Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments may be completed by instructing relevant hardware through a computer program. The computer program may be stored in a non-volatile computer-readable storage. When the computer program is executed, the computer program may include the processes of the above method embodiments. Any reference to memory, database or other media used in the embodiments provided in this disclosure may include at least one of non-volatile and volatile memory. The non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetic variable memory, magnetoresistive random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), or graphene memory, etc. The volatile memory may include random access memory (RAM) or external cache memory, etc. As an illustration and not a limitation, RAM may be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM). The databases involved in the various embodiments provided in this disclosure may include at least one of a relational database and a non-relational database. The non-relational databases may include blockchain-based distributed databases, etc., but are not limited thereto. The processors involved in the various embodiments provided in this disclosure may be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, or quantum computing-based data processing logic devices, etc., and are not limited to this.
The technical features of the above embodiments may be combined in any way. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, all possible combinations should be used, it is considered to be within the scope described in this disclosure.
The above-described embodiments only express several implementation modes of the present disclosure, and their descriptions are relatively specific and detailed, but should not be construed as limiting the patent scope of the present disclosure. It should be noted that, for those of ordinary skill in the art, several modifications and improvements may be made without departing from the concept of the present disclosure, and these all fall within the protection scope of the present disclosure. Therefore, the scope of protection of this disclosure should be determined by the appended claims.
| Number | Date | Country | Kind |
|---|---|---|---|
| 202410346763.5 | Mar 2024 | CN | national |
| Number | Name | Date | Kind |
|---|---|---|---|
| 20160189635 | Lee | Jun 2016 | A1 |
| 20210097920 | Yu | Apr 2021 | A1 |
