CN115762404A - DBV remapping method and device for OLED dimming and OLED display equipment - Google Patents
DBV remapping method and device for OLED dimming and OLED display equipment Download PDFInfo
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Abstract
The invention provides a DBV remapping method and device for OLED dimming and OLED display equipment, wherein the DBV remapping method and device for OLED dimming comprise the following steps: acquiring an input DBV node, and judging whether the DBV node is in a DBV node area with non-linear brightness display; if yes, searching a target virtual image DBV 'node corresponding to the input DBV node according to a preset lookup table of the DBV node and the virtual image DBV' node; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display; and acquiring a gamma value corresponding to the target virtual mapping DBV' node and outputting the gamma value to an OLED display screen. According to the invention, the DBV node is mapped into the virtual mapping DBV 'node for correction, and the corrected virtual mapping DBV' node is used for output, so that the brightness display of the OLED display screen is linear.
Description
Technical Field
The invention relates to the technical field of OLED dimming, in particular to a DBV remapping method and device for OLED dimming, OLED display equipment and a storage medium.
Background
In the prior art, OLED dimming is implemented by directly performing linear interpolation on a DBV (signal level) node and a node, and then measuring whether an optical result is linear, if the optical result does not meet the linear requirement, the OLED dimming is adjusted by the following method:
1. moving the DBV node to a brightness position needing to be adjusted, and rebuilding a gamma table;
2. newly adding a DBV node and a gamma circuit corresponding to the DBV node, and placing the DBV node and the gamma circuit into a position needing to be adjusted;
the final measured optical performance is targeted to be as linear as possible by the above-described approach, but the 1 st approach only guarantees that a particular node can reach a particular brightness, and the risk of node interpolation is still present. The method of the 2 nd embodiment can solve the above problems, but this method increases the production cost and the circuit area.
Since linear interpolation is directly used between the DBV nodes, the gamma values after interpolation and the corresponding screen display brightness are not completely linear, so that the brightness reflected in the process of adjusting the DBV is not completely linear when measured by an optical instrument, and an end user may have an abnormal feeling that the brightness is not linear.
Disclosure of Invention
The invention mainly aims to provide a DBV remapping method and device for OLED dimming, OLED display equipment and a storage medium, aiming at overcoming the defects that the existing DBV node adjustment mode increases the cost and cannot completely realize linear results.
To achieve the above object, the present invention provides a DBV remapping method for OLED dimming, comprising the following steps:
acquiring an input DBV node, and judging whether the DBV node is in a DBV node area with non-linear brightness display or not;
if yes, searching a target virtual image DBV 'node corresponding to the input DBV node according to a preset lookup table of the DBV node and the virtual image DBV' node; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display;
and acquiring a gamma value corresponding to the target virtual mapping DBV' node and outputting the gamma value to an OLED display screen.
Further, before the step of acquiring the input DBV node and determining whether the DBV node is in a DBV node area with non-linear brightness display, the method includes:
acquiring a DBV node area of the brightness nonlinear display;
and aiming at the DBV node area of the brightness nonlinear display, creating a lookup table of the DBV node and a virtual mapping DBV' node.
Further, the step of acquiring the DBV node area of the luminance non-linear display includes:
adjusting DBV nodes of the OLED display screen, and measuring the real screen brightness value of the OLED display screen under each DBV node based on an optical detection instrument;
acquiring a theoretical screen brightness value of the OLED display screen under each DBV node;
and comparing the theoretical screen brightness value of the OLED display screen at each DBV node with the real screen brightness value, and taking the area where the DBV nodes with different brightness values are located as the DBV node area of the brightness nonlinear display.
Further, the step of acquiring the DBV node area of the luminance non-linear display includes:
adjusting DBV nodes of the OLED display screen, and measuring the real screen brightness value of the OLED display screen under each DBV node based on an optical detection instrument;
acquiring a theoretical screen brightness value of the OLED display screen under each DBV node;
generating a first curve relation between the DBV nodes of the OLED display screen and the real screen brightness value according to the real screen brightness value of the OLED display screen under each DBV node;
generating a second curve relation between the DBV node of the OLED display screen and the theoretical screen brightness value according to the theoretical screen brightness value of the OLED display screen under each DBV node;
and comparing the first curve relation with the second curve relation to obtain the DBV node area with the non-linear brightness display.
Further, the step of creating a look-up table of the DBV node and a virtual map DBV' node for the DBV node area of the luminance non-linear display includes:
acquiring a theoretical screen brightness value of the OLED display screen aiming at any DBV node in the DBV node area with the brightness displayed in a nonlinear mode;
acquiring a DBV node corresponding to the real screen brightness value of the OLED display screen reaching the theoretical screen brightness value, and using the DBV node as a virtual mapping DBV' node;
and adding the DBV node and the corresponding virtual image DBV 'node into a mapping table to be used as a lookup table of the DBV node and the virtual image DBV' node.
Further, after the step of adding the DBV node and the corresponding virtual image DBV 'node to a mapping table as a lookup table of the DBV node and the virtual image DBV' node, the method further includes:
in the DBV node area of the luminance nonlinear display of the OLED display screen, testing whether the luminance display of the OLED display screen is linear or not based on the lookup table of the DBV node and the virtual mapping DBV' node;
and if the brightness is not linear, re-executing the step of obtaining the theoretical screen brightness value of the OLED display screen aiming at any DBV node in the DBV node area with the brightness being displayed in a non-linear mode so as to update the lookup table of the DBV node and the virtual mapping DBV' node.
Further, before the step of creating a look-up table of the DBV node and a virtual map DBV' node for the DBV node area of the luminance non-linear display, the method further includes:
acquiring the area width of a DBV node area of the brightness nonlinear display;
and determining the number of DBV nodes in the lookup table of the DBV nodes and the virtual mapping DBV' nodes according to the area width.
The invention also provides a DBV remapping device for OLED dimming, comprising:
the device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring an input DBV node and judging whether the DBV node is in a DBV node area with non-linear brightness display;
the searching unit is used for searching a target virtual image DBV ' node corresponding to the input DBV node according to a preset lookup table of the DBV node and the virtual image DBV ' node if the DBV node is in the target virtual image DBV ' node; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display;
and the output unit is used for acquiring the gamma value corresponding to the target virtual mapping DBV' node and outputting the gamma value to the OLED display screen.
The present invention also provides a computer device comprising a memory and a processor, wherein the memory stores a computer program, and the processor implements the steps of any one of the above methods when executing the computer program.
The invention also provides a computer-readable storage medium, on which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of any of the above.
The invention provides a DBV remapping method and device for OLED dimming, OLED display equipment and a storage medium, wherein the DBV remapping method and device for OLED dimming comprise the following steps: acquiring an input DBV node, and judging whether the DBV node is in a DBV node area with non-linear brightness display or not; if yes, searching a target virtual mapping DBV 'node corresponding to the input DBV node according to a preset lookup table of the DBV node and the virtual mapping DBV' node; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display; and acquiring a gamma value corresponding to the target virtual mapping DBV' node and outputting the gamma value to an OLED display screen. The invention controls the brightness of the OLED display screen by mapping the DBV node into the virtual mapping DBV 'node for correction and outputting by using the corrected virtual mapping DBV' node, so that the brightness display of the OLED display screen is linear.
Drawings
FIG. 1 is a diagram illustrating steps of a DBV remapping method for OLED dimming according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of DBV remapping method steps for OLED dimming according to another embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating the relationship between the display brightness and the DBV of the OLED display screen according to an embodiment of the present invention;
FIG. 4 is a diagram illustrating the mapping of a DBV to a DBV' in one embodiment of the invention;
FIG. 5 is a block diagram of a DBV remapping device for OLED dimming according to an embodiment of the present invention;
fig. 6 is a schematic block diagram of a structure of an OLED display device according to an embodiment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, in an embodiment of the present invention, a DBV remapping method for OLED dimming is provided, including the following steps:
s1, acquiring an input DBV node, and judging whether the DBV node is in a DBV node area with non-linear brightness display or not;
s2, if the DBV node exists, searching a target virtual image DBV 'node corresponding to the input DBV node according to a preset lookup table of the DBV node and the virtual image DBV' node; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display;
and S3, acquiring a gamma value corresponding to the target virtual mapping DBV' node and outputting the gamma value to an OLED display screen.
In this embodiment, the above scheme is applied to a scene in which the luminance of the OLED display screen cannot be linearly displayed, and for a DBV node area in which the luminance is nonlinearly displayed, a DBV node in the area is mapped to be a virtual image DBV' node, so that the effect of linearly displaying the luminance is achieved.
Specifically, as described in step S1, if the brightness of the OLED display screen is to be adjusted, the corresponding DBV may be adjusted, that is, the DBV node is input; when an input DBV node is acquired, judging whether the DBV node is in a DBV node area with non-linear brightness display or not; if not, the gamma value corresponding to the DBV node can be directly output for brightness adjustment, and the linear display effect can be achieved at the moment; if so, the adjustment is performed by using the gamma value corresponding to the DBV node, a result of the nonlinear display occurs, and therefore, the DBV node needs to be processed.
As stated in the step S2, for a DBV node in the DBV node area with nonlinear display, searching a target virtual mapping DBV 'node corresponding to the input DBV node according to a preset look-up table of DBV nodes and virtual mapping DBV' nodes; it can be understood that, the lookup table of the DBV node and the virtual map DBV 'node is stored in the database in advance, and the lookup table of the DBV node and the virtual map DBV' node is a mapping table created for the DBV node area of the luminance nonlinear display; wherein, the DBV node and its virtual mapping DBV' node in the lookup table have the following relationship: the theoretical screen brightness value corresponding to the DBV node is the same as the real screen brightness value corresponding to the virtual mapping DBV' node.
As described in the step S3, the gamma value corresponding to the target virtual mapping DBV 'node is obtained and output to the OLED display, and when the gamma value corresponding to the target virtual mapping DBV' node is output, the real screen brightness value reached by the OLED display is equal to the theoretical screen brightness value corresponding to the DBV node, so that the brightness of the OLED display can be ensured to be linearly displayed.
In the embodiment, by adopting the above scheme, the existing DBV node does not need to be moved to the position where the brightness needs to be adjusted, and the purpose can be achieved only by remapping the DBV node without measuring the gamma table again. The scheme does not need to establish a new gamma table, achieves the aim through a DBV remapping technology under the existing gamma framework, can achieve the advantages of maintaining the existing manufacturing cost and circuit area, and cannot increase the production cost.
Referring to fig. 2, in another embodiment, the step of acquiring the input DBV node and determining whether the DBV node is in a DBV node area with non-linear brightness display, before the step S1, includes:
s0a, acquiring a DBV node area of the brightness nonlinear display;
and S0b, aiming at the DBV node area with the brightness displayed in a non-linear mode, creating a lookup table of the DBV node and a virtual mapping DBV' node.
In the embodiment, a brightness display test of the OLED display screen needs to be performed in advance, so that a DBV node area of the OLED display screen for brightness nonlinear display is obtained; it can be understood that the DBV node area of the non-linear display of the brightness of different OLED display screens may also be different, and therefore, the detection of the non-linear display area is required for different OLED display screens. For a DBV node region of a luminance non-linear display, a look-up table of the DBV node and a virtual map DBV' node is created in order to enable a luminance linear display to be subsequently realized.
In an embodiment, the step S0a of acquiring the DBV node area of the luminance non-linear display includes:
s01, adjusting DBV nodes of the OLED display screen, and measuring the real screen brightness value of the OLED display screen under each DBV node based on an optical detection instrument;
s02, acquiring a theoretical screen brightness value of the OLED display screen under each DBV node; the theoretical screen brightness value is a result calculated according to brightness linear display;
and S03, comparing the theoretical screen brightness value of the OLED display screen at each DBV node with the real screen brightness value, and taking the area where the DBV nodes with different brightness values are located as the DBV node area of the brightness nonlinear display.
In this embodiment, when the DBV node area with the non-linear brightness display needs to be obtained, only the theoretical screen brightness value of the OLED display screen at each DBV node needs to be compared with the real screen brightness value one by one to obtain DBV nodes with different brightness values, and the area where the DBV node is located is used as the DBV node area with the non-linear brightness display. It is to be understood that, in the above brightness value comparison process, a curve comparison mode may be adopted, and a table comparison mode may also be adopted, which is not limited herein.
Referring to fig. 3, in another embodiment, the step S0a of acquiring the DBV node area of the luminance non-linear display includes:
the Sa1 is used for adjusting DBV nodes of the OLED display screen and measuring the real screen brightness value of the OLED display screen under each DBV node based on an optical detection instrument;
sa2, acquiring a theoretical screen brightness value of the OLED display screen under each DBV node; the theoretical screen brightness value is a result calculated according to brightness linear display;
sa3, generating a first curve relation between the DBV nodes of the OLED display screen and the real screen brightness value according to the real screen brightness value of the OLED display screen under each DBV node;
sa4, generating a second curve relation between the DBV nodes of the OLED display screen and the theoretical screen brightness values according to the theoretical screen brightness values of the OLED display screen under each DBV node;
and Sa5, comparing the first curve relation with the second curve relation to obtain the DBV node area of the brightness nonlinear display.
In the embodiment, after the Real screen brightness value of the OLED display screen under each DBV node is measured, the Real screen brightness value is drawn into a first curve relation (Real curve) between the DBV node of the OLED display screen and the Real screen brightness value; and acquiring a theoretical screen brightness value of the OLED display screen under each DBV node according to theoretical calculation, and drawing the theoretical screen brightness value into a second curve relation (Ideal curve) between the DBV nodes of the OLED display screen and the theoretical screen brightness value, wherein a specific schematic diagram refers to the diagram in FIG. 3. And comparing the first curve relation with the second curve relation in the same coordinate, so that the DBV node area with the non-linear brightness display can be intuitively obtained.
With reference to fig. 4, in an embodiment, the step S0b of creating a look-up table of the DBV node and a virtual map DBV' node for the DBV node area of the luminance non-linear display includes:
sb1, aiming at any DBV node in the DBV node area with the brightness displayed in a nonlinear mode, obtaining a theoretical screen brightness value of the OLED display screen; the theoretical screen brightness value is a result calculated according to brightness linear display;
sb2, acquiring a DBV node corresponding to the real screen brightness value of the OLED display screen reaching the theoretical screen brightness value, and taking the DBV node as a virtual mapping DBV' node;
and Sb3, adding the DBV node and the corresponding virtual mapping DBV 'node into a mapping table to be used as a lookup table of the DBV node and the virtual mapping DBV' node.
In this embodiment, the above scheme of creating the lookup table between the DBV node and the virtual image DBV 'node is proposed, in the above scheme, the DBV node and the corresponding virtual image DBV' node need to satisfy the following relationship: the theoretical screen brightness value corresponding to the DBV node is the same as the real screen brightness value corresponding to the virtual mapping DBV' node. Therefore, when the DBV node is remapped according to the lookup table, the DBV node is mapped to be a virtual mapping DBV 'node aiming at the DBV node which is displayed in a nonlinear mode, and when the virtual mapping DBV' node is adopted for output, the corresponding real screen brightness value can be the same as the theoretical screen brightness value corresponding to the DBV node, and therefore the OLED display screen can be guaranteed to display brightness in a linear mode.
In one embodiment, the lookup table is of the form:
in an embodiment, after the step of adding the DBV node and the corresponding virtual image DBV 'node to a mapping table as a lookup table of the DBV node and the virtual image DBV' node, the method further includes:
in the DBV node area of the brightness nonlinear display of the OLED display screen, testing whether the brightness display of the OLED display screen is linear or not based on the lookup table of the DBV node and the virtual mapping DBV' node;
and if the brightness of the OLED display screen is not linear, re-executing the step of obtaining the theoretical screen brightness value of the OLED display screen aiming at any DBV node in the DBV node area with the brightness non-linear display so as to update the lookup tables of the DBV nodes and the virtual image DBV 'nodes until the brightness of the OLED display screen is linear according to the lookup tables of the DBV nodes and the virtual image DBV' nodes.
In this embodiment, the number of DBV nodes in the lookup table of the DBV node and the virtual image DBV 'node may be defined by a manufacturer of the driver chip according to a requirement, and each virtual image DBV' node may be placed at any DBV position.
In an embodiment, before the step S0b of creating the look-up table of the DBV node and the virtual shadow DBV' node for the DBV node area of the luminance non-linear display, the method further includes:
s001, acquiring the area width of a DBV node area of the brightness nonlinear display;
and S002, determining the number of DBV nodes in the lookup table of the DBV nodes and the virtual mapping DBV' nodes according to the area width.
In this embodiment, a scheme for determining the number of DBV nodes in a lookup table of DBV nodes and virtual image DBV' nodes is provided. Specifically, the area width of the DBV node area of the luminance nonlinear display is obtained, and the wider the area width is, the more DBV nodes should be mapped, so that the better the luminance linear display effect is obtained.
In another embodiment, before the step S1 of obtaining the input DBV node and determining whether the DBV node is in a DBV node area with non-linear brightness display, the method includes:
acquiring unique identification information of an OLED display screen and the model of the OLED display screen;
according to the model of the OLED display screen, matching a corresponding encrypted data table in a database; the database stores the corresponding relation between the model of the OLED display screen and the encrypted data table;
analyzing all characters in the unique identification information, acquiring appointed characters from appointed positions in all characters in the unique identification information, and sequentially concatenating the appointed characters according to the sequence of the appointed characters in the unique identification information to obtain a first concatenated character; sequentially concatenating the characters with the designated characters removed from the unique identification information into second concatenated characters;
decrypting the encrypted data table based on the first serial characters to obtain DBV node area information with nonlinearly displayed brightness, a lookup table of DBV nodes and virtual image DBV' nodes and verification characters;
verifying whether the second concatenated character is the same as the verification character; if the brightness is the same as the DBV node area information, the DBV node and the virtual mapping DBV' node are verified to be effective; the display can be used subsequently so as to realize brightness linear display; and if the brightness of the DBV node area information and the DBV node are different, verifying that the lookup table of the DBV node area information, the DBV node and the virtual mapping DBV' node which are displayed in the brightness non-linear mode is invalid.
In this embodiment, in order to prevent the look-up table of the DBV node and the virtual map DBV' node created in advance from being tampered, it is avoided that the linear display cannot be implemented when the DBV node is remapped. Therefore, the lookup table of the DBV node area information, the DBV node and the virtual map DBV' node which are displayed nonlinearly in brightness needs to be encrypted, and the encrypted data table and the model of the OLED display screen need to be bound and stored; the encryption password of the encryption data table is also stored in the unique identification information of the OLED display screen according to a preset rule; meanwhile, in order to verify the validity of the lookup table, the encrypted data table is also provided with the verification characters, and the verification characters are also added into the unique identification information of the OLED display screen; after the above processing, when the DBV with the OLED dimming needs to be remapped, only the unique identification information of the OLED display screen and the model of the OLED display screen need to be obtained, and the unique identification information and the model of the OLED display screen are gradually analyzed according to the above steps, so that the correct and effective lookup table of the DBV node area information, the DBV nodes, and the virtual mapping DBV' nodes with the non-linear brightness display can be obtained.
Referring to fig. 5, in an embodiment of the present invention, there is further provided an OLED dimming DBV remapping apparatus, including:
an obtaining unit 10, configured to obtain an input DBV node, and determine whether the DBV node is in a DBV node area where brightness is nonlinearly displayed;
the searching unit 20 is configured to search, if the DBV node area is in a brightness nonlinear display DBV node area, a target virtual map DBV 'node corresponding to the input DBV node according to a preset look-up table of DBV nodes and virtual map DBV' nodes; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display;
and the output unit 30 is configured to obtain a gamma value corresponding to the target virtual map DBV' node and output the gamma value to the OLED display screen.
In an embodiment, the OLED dimming DBV remapping apparatus further includes:
the area acquisition unit is used for acquiring the DBV node area of the brightness nonlinear display;
and the creating unit is used for creating a lookup table of the DBV node and the virtual mapping DBV' node aiming at the DBV node area with the non-linear brightness display.
In an embodiment, the area obtaining unit includes:
the first measuring subunit is used for adjusting DBV nodes of the OLED display screen and measuring the real screen brightness value of the OLED display screen under each DBV node based on an optical detection instrument;
the first acquiring subunit is used for acquiring a theoretical screen brightness value of the OLED display screen at each DBV node;
and the first comparison subunit is used for comparing the theoretical screen brightness value of the OLED display screen at each DBV node with the real screen brightness value, and taking the area where the DBV nodes with different brightness values are located as the DBV node area of the brightness nonlinear display.
In another embodiment, the area acquisition unit includes:
the second measuring subunit is used for adjusting DBV nodes of the OLED display screen and measuring the real screen brightness value of the OLED display screen under each DBV node based on an optical detection instrument;
the second acquiring subunit is used for acquiring a theoretical screen brightness value of the OLED display screen under each DBV node;
the first generation subunit is used for generating a first curve relation between the DBV node of the OLED display screen and the real screen brightness value according to the real screen brightness value of the OLED display screen under each DBV node;
the second generation subunit is used for generating a second curve relation between the DBV nodes of the OLED display screen and the theoretical screen brightness values according to the theoretical screen brightness values of the OLED display screen at each DBV node;
and the second comparison subunit is used for comparing the first curve relationship with the second curve relationship to obtain the DBV node area of the brightness nonlinear display.
In another embodiment, the creating unit includes:
the third acquiring subunit is configured to acquire a theoretical screen brightness value of the OLED display screen for any DBV node in the DBV node region where the brightness is nonlinearly displayed;
the fourth acquiring subunit is configured to acquire a DBV node corresponding to the actual screen brightness value of the OLED display screen reaching the theoretical screen brightness value, and use the DBV node as a virtual mapping DBV' node;
and the creating subunit is used for adding the DBV node and the corresponding virtual image DBV 'node into a mapping table to serve as a lookup table of the DBV node and the virtual image DBV' node.
In an embodiment, the creating unit is further configured to:
in the DBV node area of the luminance nonlinear display of the OLED display screen, testing whether the luminance display of the OLED display screen is linear or not based on the lookup table of the DBV node and the virtual mapping DBV' node;
and if the brightness is not linear, re-executing any DBV node in the DBV node area with the brightness displayed in a non-linear mode, and obtaining the theoretical screen brightness value of the OLED display screen so as to update the lookup table of the DBV node and the virtual mapping DBV' node.
In an embodiment, the OLED-dimmed DBV remapping means further comprises:
a width acquisition unit for acquiring a region width of a DBV node region for luminance nonlinear display;
and the quantity determining unit is used for determining the quantity of the DBV nodes in the lookup table of the DBV nodes and the virtual image DBV' nodes according to the area width.
In this embodiment, please refer to the method embodiment for specific implementation of each unit and sub-unit in the apparatus, which is not described herein again.
Referring to fig. 6, an embodiment of the present invention further provides a computer device, where the computer device may be a display, and an internal structure of the computer device may be as shown in fig. 6. The computer device includes a processor, a memory, a network interface, and a database connected by a system bus. Wherein the computer designed processor is used to provide computational and control capabilities. The memory of the computer device comprises a nonvolatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program, and a database. The internal memory provides an environment for the operation of an operating system and computer programs in the non-volatile storage medium. The database of the computer device is used for storing look-up tables and the like. The network interface of the computer device is used for communicating with an external terminal through a network connection. The computer program is executed by a processor to implement a DBV remapping method for OLED dimming.
It will be appreciated by those skilled in the art that the structure shown in fig. 6 is a block diagram of only a portion of the structure associated with the inventive arrangements, and is not intended to limit the scope of the computer apparatus to which the inventive arrangements may be applied.
An embodiment of the present invention also provides a computer readable storage medium, on which a computer program is stored, which, when executed by a processor, implements a DBV remapping method for OLED dimming. It is to be understood that the computer readable storage medium in this embodiment may be a volatile readable storage medium or a non-volatile readable storage medium.
In summary, the DBV remapping method and apparatus for OLED dimming, the OLED display device and the storage medium provided in the embodiments of the present invention include: acquiring an input DBV node, and judging whether the DBV node is in a DBV node area with non-linear brightness display or not; if yes, searching a target virtual image DBV 'node corresponding to the input DBV node according to a preset lookup table of the DBV node and the virtual image DBV' node; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display; and acquiring a gamma value corresponding to the target virtual mapping DBV' node and outputting the gamma value to an OLED display screen. The invention controls the brightness of the OLED display screen by mapping the DBV node into the virtual mapping DBV 'node for correction and outputting by using the corrected virtual mapping DBV' node, so that the brightness display of the OLED display screen is linear.
It will be understood by those skilled in the art that all or part of the processes of the methods of the embodiments described above can be implemented by hardware instructions of a computer program, which can be stored in a non-volatile computer-readable storage medium, and when executed, can include the processes of the embodiments of the methods described above. Any reference to memory, storage, databases, or other media provided herein or used in embodiments of the present invention may include non-volatile and/or volatile memory. Non-volatile memory can include read-only memory (ROM), programmable ROM (PROM), electrically Programmable ROM (EPROM), electrically Erasable Programmable ROM (EEPROM), or flash memory. Volatile memory can include Random Access Memory (RAM) or external cache memory. By way of illustration and not limitation, RAM is available in a variety of forms such as Static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), dual data rate SDRAM (SSRDRAM), enhanced SDRAM (ESDRAM), synchronous Link (SLDRAM), rambus (Rambus) direct RAM (RDRAM), direct Rambus Dynamic RAM (DRDRAM), and Rambus Dynamic RAM (RDRAM), among others.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, apparatus, article, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, apparatus, article, or method. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of another identical element in a process, apparatus, article, or method comprising the element.
The above description is only for the preferred embodiment of the present invention and is not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A DBV remapping method for OLED dimming is characterized by comprising the following steps:
acquiring an input DBV node, and judging whether the DBV node is in a DBV node area with non-linear brightness display or not;
if yes, searching a target virtual image DBV 'node corresponding to the input DBV node according to a preset lookup table of the DBV node and the virtual image DBV' node; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display;
and acquiring a gamma value corresponding to the target virtual mapping DBV' node and outputting the gamma value to an OLED display screen.
2. The method according to claim 1, wherein the step of obtaining the input DBV node and determining whether the DBV node is in a DBV node area of a luminance non-linear display comprises:
acquiring a DBV node area of the brightness nonlinear display;
and aiming at the DBV node area of the brightness nonlinear display, creating a lookup table of the DBV node and a virtual mapping DBV' node.
3. The OLED-dimmed DBV remapping method of claim 2, wherein said step of obtaining a DBV node area of said luminance non-linear display comprises:
adjusting DBV nodes of the OLED display screen, and measuring the real screen brightness value of the OLED display screen under each DBV node based on an optical detection instrument;
acquiring a theoretical screen brightness value of the OLED display screen under each DBV node;
and comparing the theoretical screen brightness value of the OLED display screen at each DBV node with the real screen brightness value, and taking the area where the DBV nodes with different brightness values are located as the DBV node area of the brightness nonlinear display.
4. The OLED-dimmed DBV remapping method of claim 2, wherein said step of obtaining a DBV node area of said luminance non-linear display comprises:
adjusting DBV nodes of the OLED display screen, and measuring the real screen brightness value of the OLED display screen under each DBV node based on an optical detection instrument;
acquiring a theoretical screen brightness value of the OLED display screen under each DBV node;
generating a first curve relation between the DBV nodes of the OLED display screen and the real screen brightness value according to the real screen brightness value of the OLED display screen under each DBV node;
generating a second curve relation between the DBV node of the OLED display screen and the theoretical screen brightness value according to the theoretical screen brightness value of the OLED display screen under each DBV node;
and comparing the first curve relation with the second curve relation to obtain the DBV node area with the non-linear brightness display.
5. The OLED-dimmed DBV remapping method of claim 2, wherein said step of creating a look-up table of DBV nodes and virtual shadow DBV' nodes for the DBV node area of the luminance non-linear display comprises:
acquiring a theoretical screen brightness value of the OLED display screen aiming at any DBV node in the DBV node area with the brightness displayed in a nonlinear mode;
acquiring a DBV node corresponding to the real screen brightness value of the OLED display screen reaching the theoretical screen brightness value, and using the DBV node as a virtual mapping DBV' node;
and adding the DBV node and the corresponding virtual image DBV 'node into a mapping table to be used as a lookup table of the DBV node and the virtual image DBV' node.
6. The method according to claim 5, wherein the step of adding the DBV node and its corresponding virtual mapped DBV 'node to a mapping table as the look-up table of DBV node and virtual mapped DBV' node further comprises:
in the DBV node area of the luminance nonlinear display of the OLED display screen, testing whether the luminance display of the OLED display screen is linear or not based on the lookup table of the DBV node and the virtual mapping DBV' node;
and if the DBV node is not linear, re-executing the step of obtaining the theoretical screen brightness value of the OLED display screen aiming at any DBV node in the DBV node area with the brightness non-linear display so as to update the lookup table of the DBV node and the virtual mapping DBV' node.
7. The OLED-dimmed DBV remapping method of claim 2, wherein said step of creating a look-up table of DBV nodes and virtual shadow DBV' nodes for the DBV node area of the luminance non-linear display further comprises:
acquiring the area width of a DBV node area with non-linear brightness display;
and determining the number of DBV nodes in the lookup table of the DBV nodes and the virtual mapping DBV' nodes according to the area width.
8. An OLED-dimmed DBV remapping apparatus, comprising:
the device comprises an acquisition unit, a display unit and a display unit, wherein the acquisition unit is used for acquiring an input DBV node and judging whether the DBV node is in a DBV node area with non-linear brightness display;
the searching unit is used for searching a target virtual mapping DBV 'node corresponding to the input DBV node according to a preset lookup table of the DBV node and the virtual mapping DBV' node if the DBV node is located in the searching unit; the lookup table of the DBV node and the virtual mapping DBV' node is a mapping table created aiming at the DBV node area of the brightness nonlinear display;
and the output unit is used for acquiring the gamma value corresponding to the target virtual mapping DBV' node and outputting the gamma value to the OLED display screen.
9. An OLED display device comprising a memory and a processor, the memory having stored therein a computer program, characterized in that the processor realizes the steps of the method of any one of claims 1 to 7 when executing the computer program.
10. A computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 7.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006190619A (en) * | 2005-01-07 | 2006-07-20 | Toshiba Matsushita Display Technology Co Ltd | Surface light source device and liquid crystal display |
| CN101587698A (en) * | 2008-05-19 | 2009-11-25 | 索尼爱立信移动通信日本株式会社 | Display apparatus, display control method, and display control program |
| US20160189635A1 (en) * | 2014-12-29 | 2016-06-30 | Lg Display Co., Ltd. | Organic light emitting diode display and method for controlling luminance thereof |
| CN107845369A (en) * | 2017-11-17 | 2018-03-27 | 苏州华兴源创电子科技有限公司 | A kind of dynamic adjusting method and system of LED backlight brightness |
| CN109979390A (en) * | 2019-04-09 | 2019-07-05 | 京东方科技集团股份有限公司 | A kind of Gamma bearing calibration, equipment and system, medium |
| CN111754913A (en) * | 2020-06-29 | 2020-10-09 | 昆山国显光电有限公司 | Gamma calculation method and device and display panel |
| CN112667188A (en) * | 2020-12-28 | 2021-04-16 | 长沙湘计海盾科技有限公司 | Display brightness control method, device, system, electronic terminal and readable storage medium |
| US20210152801A1 (en) * | 2018-07-05 | 2021-05-20 | Huawei Technologies Co., Ltd. | Video Signal Processing Method and Apparatus |
| CN113450693A (en) * | 2021-07-02 | 2021-09-28 | 昆山国显光电有限公司 | Driving device and driving method of display panel and display device |
| CN114627820A (en) * | 2020-12-14 | 2022-06-14 | 乐金显示有限公司 | Electroluminescent display device and driving method thereof |
| TWI782687B (en) * | 2021-09-01 | 2022-11-01 | 大陸商北京集創北方科技股份有限公司 | Brightness adjustment method of OLED display panel, OLED display device, and information processing device |
-
2023
- 2023-01-10 CN CN202310031760.8A patent/CN115762404B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006190619A (en) * | 2005-01-07 | 2006-07-20 | Toshiba Matsushita Display Technology Co Ltd | Surface light source device and liquid crystal display |
| CN101587698A (en) * | 2008-05-19 | 2009-11-25 | 索尼爱立信移动通信日本株式会社 | Display apparatus, display control method, and display control program |
| US20160189635A1 (en) * | 2014-12-29 | 2016-06-30 | Lg Display Co., Ltd. | Organic light emitting diode display and method for controlling luminance thereof |
| CN107845369A (en) * | 2017-11-17 | 2018-03-27 | 苏州华兴源创电子科技有限公司 | A kind of dynamic adjusting method and system of LED backlight brightness |
| US20210152801A1 (en) * | 2018-07-05 | 2021-05-20 | Huawei Technologies Co., Ltd. | Video Signal Processing Method and Apparatus |
| CN109979390A (en) * | 2019-04-09 | 2019-07-05 | 京东方科技集团股份有限公司 | A kind of Gamma bearing calibration, equipment and system, medium |
| CN111754913A (en) * | 2020-06-29 | 2020-10-09 | 昆山国显光电有限公司 | Gamma calculation method and device and display panel |
| CN114627820A (en) * | 2020-12-14 | 2022-06-14 | 乐金显示有限公司 | Electroluminescent display device and driving method thereof |
| US20220189393A1 (en) * | 2020-12-14 | 2022-06-16 | Lg Display Co., Ltd. | Electroluminescent display device and method for driving same |
| CN112667188A (en) * | 2020-12-28 | 2021-04-16 | 长沙湘计海盾科技有限公司 | Display brightness control method, device, system, electronic terminal and readable storage medium |
| CN113450693A (en) * | 2021-07-02 | 2021-09-28 | 昆山国显光电有限公司 | Driving device and driving method of display panel and display device |
| TWI782687B (en) * | 2021-09-01 | 2022-11-01 | 大陸商北京集創北方科技股份有限公司 | Brightness adjustment method of OLED display panel, OLED display device, and information processing device |
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|---|---|
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