CN107978230B - Flexible display screen bending display compensation method and system - Google Patents
Flexible display screen bending display compensation method and system Download PDFInfo
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Abstract
The embodiment of the invention provides flexible display screen bending display compensation methods and systems, and solves the problem that a bending display image of a flexible display screen can generate abnormal display.
Description
Technical Field
The invention relates to the technical field of flexible display, in particular to a bending display compensation method and system for flexible display screens.
Background
Since OLED display panels using glass substrates have disadvantages of being fragile, weak, inconvenient to carry, and inflexible, research and development personnel have developed flexible OLED display panels using flexible substrates (e.g., plastic), which can be folded or rolled.
The flexible OLED display generally comprises a flexible substrate, a driving circuit unit on the flexible substrate, and an Organic Light Emitting Device (OLED) on the flexible substrate and connected to the driving circuit unit, the driving circuit unit generally comprises a TFT (thin film transistor) and a capacitor, when the flexible display is bent, the display brightness of pixel units under the current display parameters is affected due to stress generated by bending, so that abnormal display occurs in the bent display image of the flexible display, therefore, methods capable of performing brightness compensation on the bent display image of the flexible display are urgently needed.
Disclosure of Invention
In view of this, the embodiment of the present invention provides methods and systems for compensating for a curved display of a flexible display screen, which solve the problem that a curved display image of the flexible display screen may cause display abnormality.
The flexible display screen bending display compensation method provided by the embodiment of the invention comprises the following steps:
measuring bending parameters of pixel units in a bending image displayed by the flexible display screen; and
and performing brightness compensation on pixel units in the curved image according to the curved parameters.
Wherein performing brightness compensation on pixel units in the warped image according to the warping parameter comprises:
based on a pre-established or stored data model that the compensation quantity of the display parameters of the pixel unit changes along with the bending parameters and the normal brightness parameters when the pixel unit is not bent, the compensation quantity of the display parameters needed by the current pixel unit to reach the normal brightness parameters is obtained by inputting the bending parameters of the current pixel unit and the normal brightness parameters when the pixel unit is not bent, the normal display parameters needed by the current pixel unit to reach the normal brightness parameters are obtained according to the compensation quantity of the display parameters, and the display driving circuit is driven by the normal display parameters to realize brightness compensation.
Wherein, the establishing a data model of the variation of the display parameter compensation quantity of the pixel unit along with the bending parameter and the normal brightness parameter when the pixel unit is not bent comprises:
obtaining discrete values of display parameters and brightness parameters of the pixel unit under a plurality of different bending parameters through measurement;
fitting th change relation data among the bending parameters, the display parameters and the brightness parameters according to the discrete values of the display parameters and the brightness parameters under a plurality of different bending parameters;
calculating discrete values of compensation amounts of display parameters required for achieving different normal brightness parameters under a plurality of different bending parameters, wherein the compensation amount of the display parameters required for achieving normal brightness parameters of the pixel unit under bending parameters is the difference between the display parameters required for achieving normal brightness parameters of the pixel unit under bending parameters and the display parameters corresponding to known normal brightness parameters of the pixel unit without bending, which are obtained according to the variation relation data;
and fitting second change relation data among the display parameter compensation quantity, the bending parameter and the normal brightness parameter according to the discrete numerical value of the display parameter compensation quantity obtained by calculation.
The display parameter is a data signal voltage, the luminance parameter is a gray scale parameter, and the obtaining of the discrete values of the display parameter and the luminance parameter of the pixel unit under the plurality of different bending parameters by measurement includes:
measuring discrete values of data signal voltage and conduction current of the pixel unit under a plurality of different bending parameters; and
and correspondingly converting the measured conduction current value into a gray scale parameter value.
Wherein fitting the second variation relation data among the display parameter compensation amount, the bending parameter and the normal brightness parameter according to the calculated discrete value of the display parameter compensation amount comprises:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections;
dividing the variation range of the normal brightness parameter into a plurality of normal brightness parameter range segments; and
according to the discrete values of the compensation quantity of the display parameters in bending parameter range segments and normal brightness parameter range segments, the variation relation data among the compensation quantity of the display parameters, the bending parameters and the normal brightness parameters in bending parameter range segments and normal brightness parameter range segments are fitted.
Wherein fitting the second variation relation data among the display parameter compensation amount, the bending parameter and the normal brightness parameter according to the calculated discrete value of the display parameter compensation amount comprises:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections; and
the data of the relationship between the compensation quantity of the display parameters under bending parameters in the bending parameter range segments and the normal brightness parameters is used as the data of the relationship between the compensation quantity of the display parameters under all the bending parameters in the bending parameter range segments and the normal brightness parameters.
Wherein the obtaining discrete values of the display parameter and the brightness parameter of the pixel unit under a plurality of different bending parameters by measurement comprises:
the discrete values of the display parameter and the normal brightness parameter are obtained by measurement when the pixel unit has no bending.
Wherein the bending parameters include: a bent pixel coordinate and a strain parameter corresponding to the bent pixel coordinate.
Wherein the strain parameters include: a bend radius and/or a bend stress.
Another embodiment of the present invention further provides a curved display compensation system of flexible display screens, comprising a curved display compensation device, wherein the curved display compensation device comprises:
the measurement module is configured to measure bending parameters of pixel units in a bending image displayed by the flexible display screen; and
and the compensation module is configured to perform brightness compensation on the pixel units in the bent image according to the bending parameters.
The bending display compensation device further comprises a data model storage module configured to store a data model in which the compensation amount of the display parameter of the pixel unit varies with the bending parameter and the normal brightness parameter when the pixel unit is not bent;
wherein the compensation module comprises:
the control calculation unit is configured to input the bending parameters of the current pixel unit obtained by the measurement module and the normal brightness parameters of the current pixel unit when the current pixel unit is not bent into the data model so as to obtain the display parameter compensation amount required by the current pixel unit to reach the normal brightness parameters and further obtain the normal display parameters required by the current pixel unit to reach the normal brightness parameters; and
and the compensation driving unit is configured to realize brightness compensation according to the normal display parameter driving circuit obtained by the control calculation unit.
The system further includes a data model building module including a measuring subunit configured to obtain discrete values of the display parameter and the brightness parameter of the pixel unit under a plurality of different bending parameters by measurement;
an fitting subunit, configured to fit th variation relation data among the bending parameter, the display parameter and the brightness parameter according to the discrete values of the display parameter and the brightness parameter under a plurality of different bending parameters;
a calculating subunit, configured to calculate discrete values of compensation amounts of display parameters required for achieving different normal luminance parameters under a plurality of different bending parameters, wherein the compensation amount of the display parameters required for achieving normal luminance parameters of the pixel unit under bending parameters is a difference between the display parameters required for achieving normal luminance parameters of the pixel unit under bending parameters and the display parameters corresponding to the known pixel unit under no bending reaching normal luminance parameters according to the th variation relation data;
and the second fitting subunit is configured to fit second variation relation data among the display parameter compensation quantity, the bending parameter and the normal brightness parameter according to the calculated discrete numerical value of the display parameter compensation quantity.
Wherein the second fitting subunit is further configured to:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections;
dividing the variation range of the normal brightness parameter into a plurality of normal brightness parameter range segments; and
according to the discrete values of the compensation quantity of the display parameters in bending parameter range segments and normal brightness parameter range segments, the variation relation data among the compensation quantity of the display parameters, the bending parameters and the normal brightness parameters in bending parameter range segments and normal brightness parameter range segments are fitted.
Wherein the second fitting subunit is further configured to:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections; and
the data of the relationship between the compensation quantity of the display parameters under bending parameters in the bending parameter range segments and the normal brightness parameters is used as the data of the relationship between the compensation quantity of the display parameters under all the bending parameters in the bending parameter range segments and the normal brightness parameters.
According to the flexible display screen bending display compensation method and system, the abnormal degree of bending display is related to the bending degree of the flexible display screen, so that the bending parameters of the pixel units in the bending image of the flexible display screen are measured, and only the brightness of the pixel units in the bending image is compensated according to the bending parameters, so that the brightness of the bending image can be normally displayed, the bending image can keep the bending shape without being influenced by compensation operation, and the display effect of the flexible display screen is improved.
Drawings
Fig. 1 is a schematic flow chart of a bending display compensation method for flexible display screens according to an embodiment of of the present invention.
Fig. 2 is a flow chart illustrating brightness compensation of pixel elements in a warped image according to a warping parameter according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart illustrating a process of modeling data of a display parameter compensation amount of a flexible display screen varying with a bending parameter according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a bending display compensation system for flexible display screens according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.
Fig. 1 is a schematic flow chart of a method for compensating a curved display of flexible display screens according to an embodiment of the present invention, as shown in fig. 1, the method includes:
step 101: and measuring the bending parameters of the pixel units in the bending image displayed by the flexible display screen.
When the flexible display screen is bent and deformed, the displayed image is necessarily bent and deformed to be a bent image. The bending deformation of the flexible display screen can generate stress, so that the corresponding relation between the display parameters of the flexible display screen and the display brightness changes, and the display brightness under the current display parameters is further influenced, namely, the display brightness of the pixel units in the bent image can be influenced. Since the abnormal brightness of each pixel unit is related to the bending degree, the bending parameters of the pixel units in the bending image need to be measured as the basis for the subsequent bending display compensation.
In an embodiment of the present invention, the bending parameters include a bending pixel coordinate and a strain parameter corresponding to the bending pixel coordinate, wherein the bending pixel coordinate is used for locating a position of a pixel cell in the bending image, and the strain parameter corresponding to the bending pixel coordinate is used for characterizing a bending degree of the pixel cell corresponding to the bending pixel coordinate, in a step embodiment, the strain parameter may be specifically characterized by a bending radius and a bending stress.
It should be understood that the specific content of the bending parameter for characterizing the bending degree of the pixel unit can be adjusted by a developer according to actual experimental conditions or application scenarios, and the specific content of the bending parameter is not limited by the present invention as long as the bending degree of the pixel unit can be characterized.
Step 102: and performing brightness compensation on pixel units in the bent image according to the bending parameters.
Specifically, the abnormal brightness of the pixel unit in the curved image is related to the abnormal correspondence between the display parameters and the display brightness, that is, the current display parameters only enable the pixel unit to reach the normal display brightness without the curve, but cannot enable the pixel unit to reach the normal display brightness in the curved state. Considering that the variation of the corresponding relationship between the display parameter and the display brightness is related to the bending degree of the pixel unit, and the normal brightness parameters of different pixel units without bending may be different, the compensation amount for the display parameter can be determined according to the known normal brightness parameter to be achieved by the pixel unit and the current bending parameter of the pixel unit, and the normal display parameter required by the current pixel unit to achieve the normal brightness parameter can be obtained according to the compensation amount for the display parameter, so as to drive the display driving circuit by the normal display parameter, thereby achieving the purpose of brightness compensation.
It should be understood that the developer may establish a variation relationship between the bending parameter, the display parameter and the normal brightness parameter through various manners such as pre-learning or real-time calculation, and then obtain the compensation amount for the display parameter of the pixel unit by using the variation relationship.
FIG. 2 is a schematic diagram illustrating a process for performing luminance compensation on pixel elements in a warped image according to a warping parameter according to an embodiment of the present invention, as shown in FIG. 2, the process for performing the luminance compensation according to the warping parameter includes the following steps:
step 1021: and a data model which is established or stored in advance and is used for changing the display parameter compensation quantity of the pixel unit along with the bending parameter and the normal brightness parameter when the pixel unit is not bent.
By pre-establishing or storing a data model in which the display parameter compensation amount changes with the bending parameter and the normal brightness parameter when the pixel unit is not bent, the compensation amount of the display parameter can be determined according to the normal brightness parameter to be achieved by the pixel unit and the current bending parameter of the pixel unit.
In embodiment of the present invention, as shown in fig. 3, the data model is established by measuring discrete values of the display parameter and the brightness parameter of the pixel unit under a plurality of different bending parameters (S31), thereby forming a plurality of discrete value sets, each of which includes three values of the bending parameter, the display parameter and the brightness parameter, fitting th variation relation data among the bending parameter, the display parameter and the brightness parameter according to the discrete values of the display parameter and the brightness parameter under a plurality of different bending parameters (S32), calculating discrete values of compensation amounts of the display parameter required to reach different normal brightness parameters under a plurality of different bending parameters, wherein the compensation amounts of the display parameter required to reach normal brightness parameters of the pixel unit under a plurality of bending parameters are calculated as discrete values of compensation amounts of the display parameter required to reach the normal brightness parameters of the pixel unit under a plurality of bending parameters obtained according to variation relation data, and the compensation amounts of the display parameter required to reach the pixel unit under a plurality of bending parameters when reaching normal brightness parameters are calculated according to the variation relation data of , and the pixel unit under a plurality of bending parameters are calculated as discrete values of the difference between the display parameter calculation results when the display parameter is found to reach the normal brightness compensation amounts of the display parameter 8942, wherein the discrete values of the display parameter set when the display parameter is found to obtain a plurality of the discrete values required to reach the discrete values of the display parameter and the display parameter corresponding to obtain a plurality of the display parameter corresponding discrete values of the display parameter corresponding to obtain a plurality of compensation amounts of the display parameter corresponding to obtain a plurality of the display parameter for the pixel unit under a plurality of the display parameter corresponding to obtain a plurality of the display parameter when the display parameter corresponding to obtain a plurality of the display parameter corresponding curve parameter correlation data when the display parameter correlation data when the pixel unit under no bending parameter.
It should be understood that at , the variation relationship curve of the display parameter of the pixel unit under the condition of no bending and the normal brightness parameter is known, in the embodiment of the present invention, it is also possible to derive the discrete value of the display parameter and the normal brightness parameter under the condition of no bending of the pixel unit by measurement in the initial measurement process of establishing the data model, and give the discrete value to derive the variation relationship curve of the display parameter and the normal brightness parameter under the condition of no bending of the pixel unit, so as to support the subsequent fitting process of the second relationship data.
In the embodiment of the present invention, considering that the variation rules of the compensation amount of the display parameter are similar in the similar bending parameter range and the similar normal brightness parameter range, in order to improve the accuracy of the second variation relationship among the compensation amount of the display parameter, the bending parameter and the normal brightness parameter, the second variation relationship can be obtained by the piecewise fitting process, specifically, the variation range of the bending parameter can be divided into a plurality of bending parameter range segments, the variation range of the normal brightness parameter can be divided into a plurality of normal brightness parameter range segments, and then, according to the discrete values of the compensation amount of the display parameter in bending parameter range segments and normal brightness parameter range segments, the variation relationship data among the compensation amount of the display parameter in bending parameter range segments and normal brightness parameter range segments can be fitted, the variation relationship data among the bending parameter and the normal brightness parameter can be obtained by the piecewise fitting process, wherein each second variation relationship corresponds to 2 bending parameter range and the normal brightness parameter range segment, and it can be determined which pixel compensation amount is needed to be obtained by which bending parameter compensation unit, and which bending parameter compensation unit is needed to be used to determine which bending parameter range segment and which is needed to be used to compensate the current brightness parameter range segment.
In the embodiment of the invention, the display parameter may specifically be a data signal voltage, the luminance parameter may be a gray scale parameter, and the data model may be established by first measuring a value of a corresponding on-current (I) under different bending parameters (including a bending degree of 0, i.e., no bending condition) and a data signal voltage (Vdata), converting the on-current into a gray scale parameter value (GL) of the display screen to obtain values of the gray scale parameter, the bending parameter and the data signal voltage, performing a measurement experiment by selecting discrete values of the bending parameter and the data signal voltage, so that the relation data of the obtained on-current (I), the bending parameter and the data signal voltage (Vdata) is also a discrete value, and performing a segment fitting on the obtained discrete values according to a segment of a bending parameter variation range and a segment of a normal luminance parameter variation range to obtain a variation relation between the gray scale parameter (vdgl) and the bending parameter, the bending parameter (vdgl) and the data signal voltage (Vdata) under each bending parameter and the luminance parameter segment, and the gray scale parameter (Vdata) is a bending parameter (Vdata) and the gray scale parameter (Vdata- Δ -2) when the bending parameter (GL-3) and the bending parameter (no bending parameter, and the bending parameter (Vdata) are respectively, wherein the bending parameter (Vdata) and the gray scale parameter (Vdata) under each bending parameter (Vdata) is a corresponding to the bending parameter (Vdata- Δ 6335).
In the embodiment of the invention, in order to reduce the amount of data calculation in the fitting process for the second variation relation data, the variation range of the bending parameter may be divided into a plurality of bending parameter range segments, and the relation data of the display parameter compensation amount with respect to the normal luminance parameter at bending parameters in the bending parameter range segments may be used as the relation data of the display parameter compensation amount with respect to the normal luminance parameter at all bending parameters in the bending parameter range segments.
It should be understood that the above-described segmentation for the range of variation of the bending parameter and the normal luminance parameter may depend on the accuracy of the compensation of the display parameter to be achieved. For example, the less the bending parameter value spanned by the bending parameter range segment, the more the bending parameter segment, the higher the subsequent supplementary precision for the display parameter. The segmentation method of the variation range of the normal luminance parameter is also similar, and the segmentation method of the variation range of the bending parameter and the variation range of the normal luminance parameter is not particularly limited in the present invention.
Step 1022: and obtaining the display parameter compensation amount required by the current pixel unit to reach the normal brightness parameter by inputting the bending parameter of the current pixel unit and the normal brightness parameter when the current pixel unit is not bent based on the data model. And compensating the corresponding display parameters according to the compensation amount to restore the display brightness of the pixel unit to be normal.
It should be understood that the degree of brightness compensation for the pixel unit in the warped image described in the description of the embodiment of the present invention is the concept of quantization, and the degree of brightness compensation is related to the value of the compensation amount for the display parameter, but the brightness of all the pixel units does not change after the compensation process.
Fig. 4 is a schematic structural diagram of a bending display compensation system of flexible display screens according to an embodiment of the present invention, as shown in fig. 4, a bending display compensation apparatus 40 in the bending display compensation system of a flexible display screen includes:
a measurement module 41 configured to measure a bending parameter of a pixel unit in a bending image displayed by the flexible display screen; and
and a compensation module 42 configured to perform brightness compensation on the pixel units in the warped image according to the warping parameter.
In an embodiment of the present invention, the curvature display compensation device 40 further comprises step :
a data model storage module 43 configured to store a data model in which a display parameter compensation amount of the pixel unit varies with the bending parameter and a normal luminance parameter when the pixel unit is not bent;
wherein the compensation module 42 includes:
the control calculation unit is configured to input the bending parameters of the current pixel unit obtained by the measurement module and the normal brightness parameters of the current pixel unit when the current pixel unit is not bent into the data model so as to obtain the display parameter compensation amount required by the current pixel unit to reach the normal brightness parameters and further obtain the normal display parameters required by the current pixel unit to reach the normal brightness parameters; and
and the compensation driving unit is configured to realize brightness compensation according to the normal display parameter driving circuit obtained by the control calculation unit.
In the embodiment of the present invention, the curvature display compensation system further includes a data model building module 50, and the data model building module 50 can be disposed outside the curvature display compensation device 40 for building a data model, specifically, the data model building module 50 includes:
the measuring subunit is configured to obtain discrete values of the display parameter and the brightness parameter of the pixel unit under a plurality of different bending parameters through measurement;
an fitting subunit, configured to fit th variation relation data among the bending parameter, the display parameter and the brightness parameter according to the discrete values of the display parameter and the brightness parameter under a plurality of different bending parameters;
a calculating subunit, configured to calculate discrete values of compensation amounts of display parameters required for achieving different normal luminance parameters under a plurality of different bending parameters, wherein the compensation amount of the display parameters required for achieving normal luminance parameters of the pixel unit under bending parameters is a difference between the display parameters required for achieving normal luminance parameters of the pixel unit under bending parameters and the display parameters corresponding to the known pixel unit under no bending reaching normal luminance parameters according to the th variation relation data;
and the second fitting subunit is configured to fit second change relation data among the display parameter compensation quantity, the bending parameter and the normal brightness parameter according to the calculated discrete numerical value of the display parameter compensation quantity.
In an embodiment of the invention, the second fitting subunit is further configured to:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections;
dividing the variation range of the normal brightness parameter into a plurality of normal brightness parameter range segments (such as 256 brightness gray scales which are commonly used); and
according to the discrete values of the compensation quantity of the display parameters in bending parameter range segments and normal brightness parameter range segments, the variation relation data among the compensation quantity of the display parameters, the bending parameters and the normal brightness parameters in bending parameter range segments and normal brightness parameter range segments are fitted.
In another embodiment of the present invention, the second fitting subunit is further configured in step to:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections; and
the data of the relationship between the compensation quantity of the display parameters under bending parameters in the bending parameter range segments and the normal brightness parameters is used as the data of the relationship between the compensation quantity of the display parameters under all the bending parameters in the bending parameter range segments and the normal brightness parameters.
It should be understood that each of the modules, units or sub-units described in the bending display compensation system of the flexible display screen provided in the above embodiments corresponds to the method steps, and thus, the operations and features described in the above method steps are also applicable to the system and the corresponding modules and units included in the system, and repeated descriptions are omitted here.
The teachings of the present invention can also be implemented as a computer program product of computer-readable storage media, including computer program code, which, when executed by a processor, enables the processor to implement a method of curved display compensation for a flexible display screen as described herein in accordance with the methods of embodiments of the present invention.
It should be understood that while implementations of embodiments of the invention are described above as a computer program product, the method or system of embodiments of the invention can be implemented in software, hardware, or a combination of software and hardware, the hardware component can be implemented using dedicated logic, the software component can be stored in memory and executed by a suitable instruction execution system, e.g., a microprocessor or dedicated design hardware.
In fact, according to exemplary embodiments of the present invention, the features and functionality of two or more of the modules/units described above may be implemented in modules/units, whereas the features and functionality of modules/units described above may be further divided into being implemented by a plurality of modules/units.
It should also be understood that the description only describes key, not necessarily essential techniques and features, and may not describe features that would be achievable by one skilled in the art, in order not to obscure the embodiments of the invention.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and the like that are within the spirit and principle of the present invention are included in the present invention.
Claims (8)
1, A method for compensating the bending display of a flexible display screen, comprising:
measuring bending parameters of pixel units in a bending image displayed by the flexible display screen; and
performing brightness compensation on pixel units in the curved image according to the curved parameters;
wherein the performing brightness compensation on the pixel units in the curved image according to the curved parameter comprises:
based on a pre-established or stored data model that the compensation quantity of the display parameters of the pixel unit changes along with the bending parameters and the normal brightness parameters when the pixel unit is not bent, the compensation quantity of the display parameters needed by the current pixel unit to reach the normal brightness parameters is obtained by inputting the bending parameters of the current pixel unit and the normal brightness parameters when the pixel unit is not bent, the normal display parameters needed by the current pixel unit to reach the normal brightness parameters are obtained according to the compensation quantity of the display parameters, and the display driving circuit is driven by the normal display parameters to realize brightness compensation.
2. The method of claim 1, wherein modeling the data of the amount of compensation for the display parameter of the pixel cell as a function of the warp parameter and the normal luminance parameter of the pixel cell without warp comprises:
obtaining discrete values of display parameters and brightness parameters of the pixel unit under a plurality of different bending parameters through measurement;
fitting th change relation data among the bending parameters, the display parameters and the brightness parameters according to the discrete values of the display parameters and the brightness parameters under a plurality of different bending parameters;
calculating discrete values of compensation amounts of display parameters required for achieving different normal brightness parameters under a plurality of different bending parameters, wherein the compensation amount of the display parameters required for achieving normal brightness parameters of the pixel unit under bending parameters is the difference between the display parameters required for achieving normal brightness parameters of the pixel unit under bending parameters and the display parameters corresponding to known normal brightness parameters of the pixel unit without bending, which are obtained according to the variation relation data;
and fitting second change relation data among the display parameter compensation quantity, the bending parameter and the normal brightness parameter according to the discrete numerical value of the display parameter compensation quantity obtained by calculation.
3. The method according to claim 2, wherein the fitting the second variation relation data among the display parameter compensation amount, the bending parameter and the normal brightness parameter according to the discrete values of the calculated display parameter compensation amount comprises:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections;
dividing the variation range of the normal brightness parameter into a plurality of normal brightness parameter range segments; and
according to the discrete values of the compensation quantity of the display parameters in bending parameter range segments and normal brightness parameter range segments, the variation relation data among the compensation quantity of the display parameters, the bending parameters and the normal brightness parameters in bending parameter range segments and normal brightness parameter range segments are fitted.
4. The method according to claim 2, wherein the fitting the second variation relation data among the display parameter compensation amount, the bending parameter and the normal brightness parameter according to the discrete values of the calculated display parameter compensation amount comprises:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections; and
the data of the relationship between the compensation quantity of the display parameters under bending parameters in the bending parameter range segments and the normal brightness parameters is used as the data of the relationship between the compensation quantity of the display parameters under all the bending parameters in the bending parameter range segments and the normal brightness parameters.
The curved display compensation system of flexible display screen, comprising a curved display compensation device, wherein the curved display compensation device comprises:
the measurement module is configured to measure bending parameters of pixel units in a bending image displayed by the flexible display screen; and
a compensation module configured to perform brightness compensation on pixel units in the curved image according to the curved parameter;
the bending display compensation device further comprises a data model storage module configured to store a data model in which the compensation amount of the display parameter of the pixel unit varies with the bending parameter and the normal brightness parameter when the pixel unit is not bent;
wherein the compensation module comprises:
the control calculation unit is configured to input the bending parameters of the current pixel unit obtained by the measurement module and the normal brightness parameters of the current pixel unit when the current pixel unit is not bent into the data model so as to obtain the display parameter compensation amount required by the current pixel unit to reach the normal brightness parameters and further obtain the normal display parameters required by the current pixel unit to reach the normal brightness parameters; and
and the compensation driving unit is configured to realize brightness compensation according to the normal display parameter driving circuit obtained by the control calculation unit.
6. The system of claim 5, further comprising a data model building module comprising:
the measuring subunit is configured to obtain discrete values of the display parameter and the brightness parameter of the pixel unit under a plurality of different bending parameters through measurement;
an fitting subunit, configured to fit th variation relation data among the bending parameter, the display parameter and the brightness parameter according to the discrete values of the display parameter and the brightness parameter under a plurality of different bending parameters;
a calculating subunit, configured to calculate discrete values of compensation amounts of display parameters required for achieving different normal luminance parameters under a plurality of different bending parameters, wherein the compensation amount of the display parameters required for achieving normal luminance parameters of the pixel unit under bending parameters is a difference between the display parameters required for achieving normal luminance parameters of the pixel unit under bending parameters and the display parameters corresponding to the known pixel unit under no bending reaching normal luminance parameters according to the th variation relation data;
and the second fitting subunit is configured to fit second variation relation data among the display parameter compensation quantity, the bending parameter and the normal brightness parameter according to the calculated discrete numerical value of the display parameter compensation quantity.
7. The system of claim 6, wherein the second fitting subunit is further configured for to:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections;
dividing the variation range of the normal brightness parameter into a plurality of normal brightness parameter range segments; and
according to the discrete values of the compensation quantity of the display parameters in bending parameter range segments and normal brightness parameter range segments, the variation relation data among the compensation quantity of the display parameters, the bending parameters and the normal brightness parameters in bending parameter range segments and normal brightness parameter range segments are fitted.
8. The system of claim 6, wherein the second fitting subunit is further configured for to:
dividing the variation range of the bending parameter into a plurality of bending parameter range sections; and
the data of the relationship between the compensation quantity of the display parameters under bending parameters in the bending parameter range segments and the normal brightness parameters is used as the data of the relationship between the compensation quantity of the display parameters under all the bending parameters in the bending parameter range segments and the normal brightness parameters.
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| CN201610933050.4A CN107978230B (en) | 2016-10-25 | 2016-10-25 | Flexible display screen bending display compensation method and system |
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| CN201610933050.4A CN107978230B (en) | 2016-10-25 | 2016-10-25 | Flexible display screen bending display compensation method and system |
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| CN108648722B (en) | 2018-05-14 | 2021-01-22 | 京东方科技集团股份有限公司 | Brightness compensation method and device |
| CN109036249B (en) * | 2018-08-22 | 2021-10-22 | 京东方科技集团股份有限公司 | Display method of curved surface display panel and curved surface display device |
| CN111681586B (en) * | 2020-06-11 | 2022-08-16 | Oppo广东移动通信有限公司 | Folding screen, control method thereof and electronic equipment |
| CN112233617B (en) * | 2020-10-29 | 2021-11-16 | 维信诺科技股份有限公司 | Optical data compensation method and compensation device, storage medium and electronic equipment |
| CN113470560B (en) * | 2021-06-30 | 2023-08-29 | 合肥维信诺科技有限公司 | Stretchable display panel and brightness control method thereof |
| CN115086551B (en) * | 2022-05-19 | 2024-08-09 | 上海艾为电子技术股份有限公司 | Hall sensor output signal and motor displacement corresponding relation applied to OIS anti-shake, motor displacement acquisition method and system, and motor driving chip |
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