CN114664249B - Luminance control method, device, equipment, medium and display device - Google Patents
Luminance control method, device, equipment, medium and display device Download PDFInfo
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0233—Improving the luminance or brightness uniformity across the screen
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The application provides a brightness control method, a device, equipment, a medium and a display device, wherein the brightness control method comprises the following steps: acquiring test data for lighting test of the display panel; determining a compensation value of the display brightness level according to the test data; and compensating the current display brightness level of the display panel according to the compensation value, so that the compensated display brightness level is the display brightness level corresponding to the target brightness value. The technical scheme of the application can solve the problem of brightness attenuation at the initial stage of the product and improve the stability of brightness.
Description
Technical Field
The present disclosure relates to display technologies, and in particular, to a brightness control method, device, apparatus, medium, and display device.
Background
An Organic Light-Emitting Diode (OLED) product belongs to a current-driven product, and the main factors affecting the brightness of the product include current and OLED luminous efficiency, and current drop fluctuation can be generated at the initial stage of product use, so that brightness attenuation can be caused, and the overall display effect of the OLED product is affected.
Disclosure of Invention
The embodiment of the application provides a brightness control method, a device, equipment, a medium and a display device, so as to solve the problems in the related art, and the technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a brightness control method, including:
acquiring test data for lighting test of the display panel;
determining a compensation value of the display brightness level according to the test data;
and compensating the current display brightness level of the display panel according to the compensation value, so that the compensated display brightness level is the display brightness level corresponding to the target brightness value.
In a second aspect, an embodiment of the present application provides a brightness control apparatus, including:
the data acquisition module is used for acquiring test data for lighting test of the display panel;
the parameter determining module is used for determining a compensation value of the display brightness level according to the test data;
and the compensation module is used for compensating the current display brightness level of the display panel according to the compensation value, so that the compensated display brightness level is the display brightness level corresponding to the target brightness value.
In a third aspect, an embodiment of the present application provides a luminance control apparatus, including: memory and a processor. The memory stores instructions that are loaded and executed by the processor to implement the brightness control method provided by any of the embodiments of the present application.
In a fourth aspect, embodiments of the present application provide a display device, including: a display panel and a luminance control apparatus provided by any one of the embodiments of the present application;
the display panel and the brightness control device are electrically connected.
In a fifth aspect, embodiments of the present application provide a computer-readable storage medium storing a computer program that, when executed by a processor, implements the brightness control method provided by any of the embodiments of the present application.
The advantages or beneficial effects in the technical scheme at least comprise:
the compensation of the brightness value of the display panel can be realized by compensating the display brightness level of the display panel, the problem of the initial brightness attenuation of the product can be solved under the condition of not carrying out process adjustment, and the brightness stability is improved.
The foregoing summary is for the purpose of the specification only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will become apparent by reference to the drawings and the following detailed description.
Drawings
In the drawings, the same reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily drawn to scale. It is appreciated that these drawings depict only some embodiments according to the disclosure and are not therefore to be considered limiting of its scope.
FIG. 1 is a schematic illustration of the luminance decay within 60 minutes of the OLED product being lit;
FIG. 2 is a graph showing the relationship between brightness and display brightness level for an ideal OLED product design;
FIG. 3 is a schematic diagram showing the correspondence between brightness and display brightness level for an OLED product designed for ideal conditions;
FIG. 4 is a schematic diagram showing the correspondence between brightness and display brightness level of an OLED product under the influence of initial current drop;
FIG. 5 is a graph showing the relationship between brightness and ideal display brightness level of an OLED product under the influence of initial current drop;
fig. 6 is a flowchart of a brightness control method according to an embodiment of the present application;
fig. 7 is a schematic diagram of compensation of a current display brightness level of a stage to be displayed in the embodiment of the present application;
FIG. 8 is a schematic diagram showing an initial luminance decay curve, a display luminance level compensation curve, and a compensated luminance curve of an OLED product;
fig. 9 is a schematic structural frame diagram of a brightness control device according to an embodiment of the present application;
fig. 10 is a schematic structural diagram of a brightness control apparatus according to an embodiment of the present application.
Detailed Description
Hereinafter, only certain exemplary embodiments are briefly described. As will be recognized by those of skill in the pertinent art, the described embodiments may be modified in various different ways without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive.
It will be understood by those skilled in the art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
First, description is made of related technologies related to embodiments of the present application:
in the initial stage of using the OLED product, the luminous efficiency of the OLED device is almost unchanged, the attenuation of initial brightness is mainly caused by current drop fluctuation, and the change of initial current is mainly caused by the influence of the TFT device because the efficiency of the OLED device is relatively stable.
The TFT device is composed of a plurality of thin films, defects exist at the interface between the films after the preparation is finished, the unstable defects can cause current to change, current drop fluctuation is caused, the defects of the TFT interface can be gradually filled along with the increase of the service time of the product, and the current gradually tends to be relatively stable. Fig. 1 shows a graph of the luminance decay in 60min (minutes) of the OLED product, with time t on the abscissa, min, luminance value Lv on the ordinate, nit (nit), and it can be seen from fig. 1 that there is a greater decay in luminance with increasing time in the first 0 to 20min, and after 20min, the decay rate gradually decreases and becomes stable.
Based on the above-mentioned initial brightness attenuation mechanism, in the related art, the process capability and stability thereof need to be improved to solve the problem of initial brightness attenuation, and the cost of this method is greatly increased, even the update of the equipment is involved, and the production efficiency is affected to a certain extent, and finally, a person with a certain experience must be required to correspondingly produce the product. Therefore, the problem is solved from the technical point of view and cannot be realized in a short time.
The inventors of the present application have found in the study that the initial brightness decay problem, whether it is process capability or stability, is essentially a brightness problem.
Fig. 2 and 3 show the correspondence between the ideal (i.e. no brightness decay) brightness and the DBV (Display Brightness Value, display brightness level) for an OLED product design, the abscissa of fig. 2 being the DBV and the ordinate being the brightness value Lv, in nit (nit). In this design, each point of the DBV corresponds to a luminance value, that is, the DBV value and the luminance value are in one-to-one correspondence, when the DBV changes, the luminance value also changes, and the two values show a forward relationship, and the larger the value of the DBV, the larger the luminance value, and the brighter the display panel.
Fig. 4 shows the correspondence between the luminance under the influence of the initial current drop and the DBV, fig. 5 shows the relationship between the luminance under the influence of the initial current drop and the DBV in an ideal case, and it is known from the previous analysis in conjunction with fig. 4 and 5 that the initial current drop causes the initial luminance drop, but the DBV value does not change accordingly, that is, the luminance value corresponding to the same DBV value generates a difference value, and the luminance problem can be converted into the DBV problem based on the one-to-one correspondence between the DBV value and the luminance value, and the luminance value can be controlled by controlling the DBV value.
The following describes the technical solution of the present application and how the technical solution of the present application solves the above technical problems in detail with specific embodiments.
The embodiment of the application provides a brightness control method, as shown in fig. 6, which includes:
s601, test data for lighting test of the display panel is obtained.
S602, determining a compensation value of the display brightness level according to the test data.
And S603, compensating the current display brightness level of the display panel according to the compensation value of the display brightness level, so that the compensated display brightness level is the display brightness level corresponding to the target brightness value.
The current display brightness level may include a display brightness level preset for each time to be displayed in the stage to be displayed. The stage to be displayed and the time to be displayed can be set according to actual requirements.
According to the brightness control method provided by the embodiment of the application, the compensation of the brightness value of the display panel can be realized through the compensation of the display brightness level of the display panel, the problem of initial brightness attenuation of a product can be solved under the condition that process adjustment is not carried out, the brightness stability is improved, and the cost is reduced.
In an optional implementation manner, the brightness control method provided in the embodiment of the present application may further include: at least one lighting test is performed on the display panel, and the display brightness level (namely, DBV value) of the display panel is adjusted at a plurality of lighting moments in the process of at least one lighting test, so that the actual brightness value of the adjusted display panel is the target brightness value.
In one example, in the case of performing a lighting test on the display panel once, the DBV value of the display panel may be adjusted at a plurality of lighting moments during the lighting test, and each lighting moment may perform at least one adjustment on the DBV value of the display panel, so that the adjusted actual brightness value of the display panel reaches a preset target brightness value. The target brightness value may be a brightness value at a start time of the lighting test process. For example, pixels of the display panel are lit at the start time of the lighting test process and the current DBV value is recorded, then the brightness is tested and the DBV value is adjusted at regular intervals until the actual brightness value reaches the brightness value at the start time, that is, the brightness value before decay, and the DBV value after adjustment at that time is recorded.
In another example, in the case of performing the lighting test on the display panel for a plurality of times, the DBV value of the display panel may be adjusted at a plurality of lighting moments during each lighting test, and each lighting moment may adjust the DBV value of the display panel at least once, so that the actual brightness value of the adjusted display panel reaches the target brightness value preset in the lighting test. The target brightness value may be a brightness value at the starting time of the lighting test process, and multiple target brightness values may be set for multiple lighting tests, that is, the lighting test and the target brightness value correspond to each other one by one, so as to obtain multiple groups of DBV values adjusted and recorded based on the multiple target brightness values.
Optionally, in step S601, obtaining test data for performing a lighting test on the display panel includes: and acquiring the DBV value adjusted in at least one lighting test process and the lighting time corresponding to the DBV value as the test data.
Referring to the foregoing example, in the case where the target luminance value is the luminance value at the start time of the lighting test procedure, the DBV value recorded during the single lighting test procedure and the lighting time corresponding to the DBV value may be acquired as the test data, or the DBV value recorded during the multiple lighting test procedures and the lighting time corresponding to the DBV value may be acquired as the test data.
By adjusting the DBV at a plurality of lighting moments in the lighting test process, a plurality of groups of DBV data and time data can be obtained, and a more sufficient data basis is provided for determining the DBV compensation value; in the case of performing a multiple flash lamp test, a more sufficient data basis may be provided for the determination of the DBV compensation value to accommodate application scenarios for different target brightness values.
In an alternative embodiment, in step S602, determining the compensation value of the DBV according to the test data includes:
determining at least one group of change characteristics of the DBV along with the time change according to the DBV value after adjustment in at least one lighting test process and the lighting time corresponding to the DBV value; and determining the compensation values of the DBV at a plurality of moments to be displayed in the stage to be displayed according to the at least one group of change characteristics.
For any known time to be displayed in the stage to be displayed, based on the change characteristic of the DBV along with the change of time, the compensation value of the DBV corresponding to the time can be rapidly determined, and the compensation efficiency is effectively improved.
Referring to the foregoing example, in the case where the lighting test is performed once and the target luminance value is the luminance value at the start time of the lighting test procedure, the DBV value recorded during the lighting test procedure and the corresponding lighting time may be fitted, and a curve of the DBV varying with time may be obtained, which may exhibit a variation characteristic of the DBV varying with time. And under the condition that the target brightness value of the stage to be displayed is the same as the target brightness value of the lighting test, determining a target DBV value at a certain moment to be displayed in the stage to be displayed according to the curve, obtaining a compensation value of the DBV at the moment to be displayed based on the difference between the target DBV value and the current DBV value at the moment to be displayed, and compensating the current DBV value based on the compensation value.
In another example, in the case where a plurality of lighting tests are performed and the target luminance value of each lighting test procedure is the luminance value at the start time of the lighting test procedure, the obtained DBV values recorded in the plurality of testing procedures and the corresponding lighting time may be fitted respectively, a plurality of curves of the DBV changing with time may be obtained, and each curve may exhibit a set of change characteristics of the DBV changing with time obtained based on a certain target luminance value. Under the condition that the target brightness value of the stage to be displayed is different from the target brightness value of the lighting test, a curve corresponding to the target brightness value of the stage to be displayed can be selected from a plurality of curves, then the target DBV value of a certain moment to be displayed in the stage to be displayed is determined according to the curve, the compensation value of the DBV at the moment to be displayed can be obtained based on the difference between the target DBV value and the current DBV value at the moment to be displayed, and the current DBV value is compensated based on the compensation value.
In another optional implementation manner, the above brightness control method provided in the embodiment of the present application may further include: and performing at least one lighting test on the display panel, and adjusting the display brightness level of the display panel in the process of the at least one lighting test to enable the adjusted actual brightness value of the display panel to be the target brightness value of the lighting test.
The target luminance value may be an arbitrarily set value, and different target luminance values are set for different lighting tests.
In one example, in the case of performing a lighting test on the display panel once, the DBV value of the display panel may be adjusted at a plurality of lighting moments during the lighting test, and each lighting moment may perform at least one adjustment on the DBV value of the display panel, so that the adjusted actual brightness value of the display panel reaches a preset target brightness value. The target brightness value may be a brightness value at a start time of the lighting test process. For example, pixels of the display panel are lit at the start time of the lighting test process and the current DBV value is recorded, then the luminance is tested and the DBV value is adjusted at regular intervals until the actual luminance value reaches the luminance value at the start time, that is, the luminance value before decay, and the DBV value and the actual luminance value adjusted at that time are recorded.
In another example, in the case of performing a plurality of lighting tests on the display panel, the pixels of the display panel may be lit at a start time during each lighting test, the brightness thereof may be tested and the DBV value may be adjusted until the actual brightness reaches a target brightness value set for the lighting test, and the adjusted DBV value and the actual brightness value may be recorded.
Optionally, in step S601, obtaining test data for performing a lighting test on the display panel includes: and acquiring the display brightness value adjusted in at least one lighting test process and the actual brightness value corresponding to the display brightness value as test data.
Referring to the previous example, the recorded DBV value and actual brightness value adjusted during at least one lighting test may be obtained.
Through at least one lighting test, multiple groups of DBV data and brightness data can be obtained, and a sufficient data basis can be provided for determining DBV compensation values.
Optionally, in step S602, determining the compensation value of the DBV according to the test data includes:
determining the change characteristics of the change value of the actual brightness along with the change value of the DBV according to the DBV and the actual brightness value corresponding to the DBV after adjustment in at least one lighting test process; and determining the compensation values of the DBV at a plurality of moments to be displayed in the stage to be displayed according to the change characteristics.
For the brightness attenuation amplitude of any moment to be displayed in the stage to be displayed, the compensation value of the corresponding DBV can be rapidly determined based on the change characteristic that the change value of the actual brightness changes along with the change value of the DBV, and the compensation efficiency is effectively improved.
Referring to the foregoing example, in the case of performing the lighting test at least once, for the obtained adjusted DBV values and the corresponding actual luminance values, the change value of each DBV value with respect to the initial DBV value or the target DBV value and the change value of each actual luminance value with respect to the initial actual luminance value or the target luminance value may be determined, the two types of change values may be fitted, a curve in which the change value of the actual luminance changes with the change value of the DBV may be obtained, the curve may exhibit a characteristic in which the change value of the actual luminance changes with the change value of the DBV, for a certain time to be displayed in the stage to be displayed, the change value of the DBV may be determined based on the curve in which the change value of the actual luminance changes with the change value of the DBV at the time to be displayed, as the compensation value of the DBV at the time to be displayed, and the current DBV value may be compensated based on the compensation value.
Fig. 7 is a schematic diagram showing the principle of compensating the current DBV value in the stage to be displayed, referring to fig. 7, the DBV compensation value of each time to be displayed determined in the previous step may be added to the current DBV value of each time to be displayed, so as to implement compensation of the current DBV value of each time to be displayed, promote the DBV value of the display panel at each time to be displayed, and correspondingly promote the brightness value based on the one-to-one correspondence between the DBV value and the brightness value, thereby solving the problem of brightness attenuation.
In the initial stage of product use, the brightness attenuation rate is generally changed along with time, the brightness attenuation amplitude at different moments to be displayed is generally different, and for different moments to be displayed and based on the determination of the compensation value in the previous step, different DBV compensation values can be adopted to compensate the current DBV value so as to overcome the attenuation of different amplitudes.
Fig. 8 shows an example graph of an initial brightness decay curve, a DBV compensation curve and a compensated brightness curve of an OLED product, wherein the abscissa is time t, the ordinate is DBV value Lv, and the ordinate is nit, as can be seen from the initial brightness decay curve in fig. 8, the initial brightness decay curve in the initial use of the product gradually decays with the lapse of time, as can be seen from the DBV compensation curve in fig. 8, the DBV compensation value gradually rises with the lapse of time, and at each moment, after compensating the existing DBV value based on the DBV compensation value of the corresponding DBV compensation curve, the brightness compensation can be realized, and referring to the final display brightness curve in fig. 8, the brightness of the display panel can be maintained at the target brightness value unchanged, and the non-decaying and stable state can be maintained.
Based on the same inventive concept, the embodiments of the present application further provide a brightness control apparatus, as shown in fig. 9, which may include: a data acquisition module 901, a parameter determination module 902, and a compensation module 903.
The data acquisition module 901 is configured to acquire test data for performing a lighting test on the display panel.
A parameter determining module 902, configured to determine a compensation value of the display brightness level according to the test data.
The compensation module 903 is configured to compensate the current display brightness level of the display panel according to the compensation value of the display brightness level, so that the compensated display brightness level is the display brightness level corresponding to the target brightness value.
The above-mentioned luminance control apparatus provided by the present disclosure may further include: and a test module.
In an alternative embodiment, the test module may be configured to: and performing at least one lighting test on the display panel, and adjusting the display brightness level of the display panel at a plurality of lighting moments in the at least one lighting test process to enable the actual brightness value of the display panel after adjustment to be a target brightness value.
In another alternative embodiment, the test module may be configured to: and performing at least one lighting test on the display panel, and adjusting the display brightness level of the display panel in the process of the at least one lighting test to enable the actual brightness value of the adjusted display panel to be the target brightness value of the lighting test.
In an alternative embodiment, the data acquisition module 901 is specifically configured to: and acquiring the display brightness level after adjustment in at least one lighting test process and the lighting time corresponding to the display brightness level as test data.
In another alternative embodiment, the data acquisition module 901 is specifically configured to: and acquiring the display brightness value adjusted in at least one lighting test process and the actual brightness value corresponding to the display brightness value as test data.
In an alternative embodiment, the parameter determination module 902 is specifically configured to: determining at least one group of change characteristics of the change value of the display brightness level along with the change of time according to the display brightness level after adjustment in at least one lighting test process and the lighting time corresponding to the display brightness level; and determining compensation values of display brightness levels at a plurality of moments to be displayed in the stage to be displayed according to at least one group of change characteristics.
In another alternative embodiment, the parameter determination module 902 is specifically configured to: determining the change characteristics of the change value of the actual brightness along with the change value of the display brightness level according to the display brightness level after adjustment in at least one lighting test process and the actual brightness value corresponding to the display brightness level; and determining compensation values of display brightness levels at a plurality of moments to be displayed in the stage to be displayed according to the change characteristics.
The functions of each module in each apparatus of the embodiments of the present application may refer to corresponding descriptions in the foregoing method embodiments, which are not repeated herein.
Based on the same inventive concept, an embodiment of the present application further provides a display apparatus, including: and a display panel and a brightness control device electrically connected.
The display device provided by the embodiment of the application can be any product or component with a display function, such as a display, a television, a digital photo frame, a mobile phone or a tablet personal computer.
As shown in fig. 10, the luminance control apparatus provided in the embodiment of the present application includes: a memory 1001 and a processor 1002. The memory 1001 stores therein a computer program that is loaded and executed by the processor 1002 to implement the luminance control method provided in any of the embodiments of the present application. The number of memories 1001 and processors 1002 may be one or more.
Optionally, the apparatus further comprises:
and the communication interface 1003 is used for communicating with external equipment and carrying out data interaction transmission.
If the memory 1001, the processor 1002, and the communication interface 1003 are implemented independently, the memory 1001, the processor 1002, and the communication interface 1003 may be connected to each other through a bus and perform communication with each other. The bus may be an industry standard architecture (Industry Standard Architecture, ISA) bus, an external device interconnect (Peripheral Component Interconnect, PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, EISA) bus, among others. The bus may be classified as an address bus, a data bus, a control bus, etc. For ease of illustration, only one thick line is shown in fig. 10, but not only one bus or one type of bus.
Alternatively, in a specific implementation, if the memory 1001, the processor 1002, and the communication interface 1003 are integrated on a single chip, the memory 1001, the processor 1002, and the communication interface 1003 may perform communication with each other through internal interfaces.
Based on the same inventive concept, the embodiments of the present application also provide a computer readable storage medium storing a computer program, which when executed by a processor, implements the brightness control method provided by any of the embodiments of the present application.
Based on the same inventive concept, the embodiment of the present application also provides a chip, where the chip includes a processor, and the processor is configured to call from a memory and execute an instruction stored in the memory, so that a communication device mounted with the chip performs the method provided by the embodiment of the present application.
Based on the same inventive concept, the embodiments of the present application further provide a chip, including: the input interface, the output interface, the processor and the memory are connected through an internal connection path, the processor is used for executing codes in the memory, and when the codes are executed, the processor is used for executing the method provided by the application embodiment.
It should be appreciated that the processor may be a central processing unit (Central Processing Unit, CPU), but may also be other general purpose processors, digital signal processors (digital signal processing, DSP), application specific integrated circuits (application specific integrated circuit, ASIC), field programmable gate arrays (fieldprogrammablegate array, FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, or the like. A general purpose processor may be a microprocessor or any conventional processor or the like. It is noted that the processor may be a processor supporting an advanced reduced instruction set machine (advanced RISC machines, ARM) architecture.
Further, optionally, the memory may include a read-only memory and a random access memory, and may further include a nonvolatile random access memory. The memory may be volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The nonvolatile Memory may include Read-Only Memory (ROM), programmable ROM (PROM), erasable Programmable ROM (EPROM), electrically Erasable EPROM (EEPROM), or flash Memory, among others. Volatile memory can include random access memory (Random Access Memory, RAM), which acts as external cache memory. By way of example, and not limitation, many forms of RAM are available. For example, static RAM (SRAM), dynamic RAM (Dynamic Random Access Memory, DRAM), synchronous DRAM (SDRAM), double Data rate Synchronous DRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous DRAM (SLDRAM), and Direct RAM (DR RAM).
In the above embodiments, it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented in software, may be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions in accordance with the present application are produced in whole or in part. The computer may be a general purpose computer, a special purpose computer, a computer network, or other programmable apparatus. Computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
Any process or method description in a flowchart or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process. And the scope of the preferred embodiments of the present application includes additional implementations in which functions may be performed in a substantially simultaneous manner or in an opposite order from that shown or discussed, including in accordance with the functions that are involved.
Logic and/or steps represented in the flowcharts or otherwise described herein, e.g., a ordered listing of executable instructions for implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions.
It is to be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above-described embodiments, the various steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. All or part of the steps of the methods of the embodiments described above may be performed by a program that, when executed, comprises one or a combination of the steps of the method embodiments, instructs the associated hardware to perform the method.
In addition, each functional unit in each embodiment of the present application may be integrated in one processing module, or each unit may exist alone physically, or two or more units may be integrated in one module. The integrated modules may be implemented in hardware or in software functional modules. The integrated modules described above, if implemented in the form of software functional modules and sold or used as a stand-alone product, may also be stored in a computer-readable storage medium. The storage medium may be a read-only memory, a magnetic or optical disk, or the like.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of various changes or substitutions within the technical scope of the present application, and these should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A brightness control method, comprising:
at least one lighting test is carried out on the display panel, the display brightness level of the display panel is adjusted in the at least one lighting test process, so that the actual brightness value of the display panel after adjustment is the target brightness value of the lighting test, and the target brightness value is the brightness value at the starting moment of the lighting test process;
obtaining test data for lighting test of the display panel, wherein the obtaining of the test data for lighting test of the display panel comprises the following steps: acquiring the display brightness value adjusted in the at least one lighting test process and the actual brightness value corresponding to the display brightness value as the test data;
determining a compensation value of the display brightness level according to the test data, wherein the determining the compensation value of the display brightness level according to the test data comprises the following steps: determining the change characteristics of the change value of the actual brightness along with the change value of the display brightness level according to the display brightness level adjusted in the at least one lighting test process and the actual brightness value corresponding to the display brightness level; determining compensation values of display brightness levels at a plurality of moments to be displayed in a stage to be displayed according to the change characteristics;
and compensating the current display brightness level of the display panel according to the compensation value, so that the compensated display brightness level is the display brightness level corresponding to the target brightness value.
2. The brightness control method according to claim 1, characterized by further comprising:
performing at least one lighting test on the display panel, and adjusting the display brightness level of the display panel at a plurality of lighting moments in the at least one lighting test process to enable the adjusted actual brightness value of the display panel to be a target brightness value;
the obtaining test data for lighting test of the display panel includes:
and acquiring the display brightness level adjusted in the at least one lighting test process and the lighting time corresponding to the display brightness level as the test data.
3. The method of claim 2, wherein determining the compensation value for the display brightness level based on the test data comprises:
determining at least one group of change characteristics of the display brightness level along with time change according to the display brightness level adjusted in the at least one lighting test process and the lighting time corresponding to the display brightness level;
and determining compensation values of display brightness levels of a plurality of moments to be displayed in the stage to be displayed according to the at least one group of change characteristics.
4. A brightness control apparatus, comprising:
the test module is used for carrying out at least one lighting test on the display panel, and adjusting the display brightness level of the display panel in the at least one lighting test process to enable the actual brightness value of the display panel after adjustment to be the target brightness value of the lighting test, wherein the target brightness value is the brightness value at the starting moment of the lighting test process;
the data acquisition module is used for acquiring test data for lighting test of the display panel, and the data acquisition module is specifically used for acquiring the display brightness value after adjustment in the at least one lighting test process and the actual brightness value corresponding to the display brightness value as the test data;
the parameter determining module is used for determining a compensation value of the display brightness level according to the test data, and the parameter determining module is specifically used for: determining the change characteristics of the change value of the actual brightness along with the change value of the display brightness level according to the display brightness level after adjustment in at least one lighting test process and the actual brightness value corresponding to the display brightness level; determining compensation values of display brightness levels at a plurality of moments to be displayed in a stage to be displayed according to the change characteristics;
and the compensation module is used for compensating the current display brightness level of the display panel according to the compensation value, so that the compensated display brightness level is the display brightness level corresponding to the target brightness value.
5. The brightness control apparatus of claim 4, further comprising:
the test module is used for carrying out at least one lighting test on the display panel, and adjusting the display brightness level of the display panel at a plurality of lighting moments in the at least one lighting test process so that the adjusted actual brightness value of the display panel is a target brightness value;
the data acquisition module is specifically configured to acquire, as the test data, the display brightness level adjusted in the at least one lighting test process and a lighting time corresponding to the display brightness level.
6. A luminance control apparatus characterized by comprising: a memory and a processor, the memory having stored therein a computer program that is loaded and executed by the processor to implement the brightness control method of any of claims 1-3.
7. A display device, comprising: a display panel and a luminance control apparatus as claimed in claim 6;
the display panel and the brightness control device are electrically connected.
8. A computer-readable storage medium, characterized in that a computer program is stored, which, when being executed by a processor, implements the brightness control method according to any one of claims 1-3.
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