CN116386499A - Gamma correction method, driving circuit of display panel and display panel - Google Patents
Gamma correction method, driving circuit of display panel and display panel Download PDFInfo
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- 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
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- G09G2320/00—Control of display operating conditions
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- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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Abstract
The application discloses a gamma correction method, a display panel driving circuit and a display panel, and belongs to the technical field of display. The gamma correction method includes: acquiring a standard gamma value, and determining the adaptation condition of the standard gamma value and a current gamma chip; under the condition that the standard gamma value is not matched with the current gamma chip, converting the standard gamma value into a correction gamma value matched with the current gamma chip; writing the corrected gamma value into the current gamma chip; and obtaining an output signal generated by the current gamma chip based on the correction gamma value, comparing the output signal with the standard gamma value, and determining a gamma correction result according to a comparison result. According to the gamma correction method and device, the standard gamma value is converted to obtain the correction gamma value which is matched with the current gamma chip, and the corresponding standard gamma value does not need to be debugged again, so that different gamma chips can be compatible with a group of standard gamma values, development cost is reduced, and management difficulty is reduced.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a gamma correction method, a driving circuit of a display panel, and a display panel.
Background
For products of the same size and specification, the driver board can be designed to consider the configuration of different ICs (Integrated Circuit, integrated circuits) for customer selection, and the ICs of different manufacturers can be different in design, so that the Auto P-gamma data obtained after the Auto P-gamma is completed by the driver board with the configuration of different ICs is not shared. That is, for the same size and the same specification, since different ICs are adopted, the corresponding Auto P-gamma needs to be debugged for the different ICs, which clearly increases the workload greatly; in the project, because of a plurality of clients, the same size also corresponds to different specifications, so that even aiming at the same size product, a developer needs to debug a plurality of groups of Auto P-gamma, which greatly increases the development cost and the management difficulty.
Disclosure of Invention
The main objective of the present application is to provide a gamma correction method, a driving circuit of a display panel and a display panel, which aim to reduce development cost and management difficulty by using the same version of Auto P-gamma data for driving boards assembled by different ICs after completing Auto P-gamma based on a gamma chip.
To achieve the above object, the present application provides a gamma correction method including:
acquiring a standard gamma value, and determining the adaptation condition of the standard gamma value and a current gamma chip;
under the condition that the standard gamma value is not matched with the current gamma chip, converting the standard gamma value into a correction gamma value matched with the current gamma chip;
writing the corrected gamma value into the current gamma chip;
and obtaining an output signal generated by the current gamma chip based on the correction gamma value, comparing the output signal with the standard gamma value, and determining a gamma correction result according to a comparison result.
Optionally, the standard gamma value includes: a standard gamma storage address;
the step of converting the standard gamma value into a corrected gamma value adapted to a current gamma chip includes:
converting the standard gamma value into a decimal number;
substituting the decimal number into a preset conversion formula to obtain a calculation result, wherein the preset conversion formula is used for converting the standard gamma value adapting to the standard gamma storage address into a corrected gamma value adapting to the gamma storage address of the current gamma chip;
and rounding and converting the calculation result into hexadecimal numbers to obtain a correction gamma value which is matched with the current gamma chip.
Optionally, the step of determining the adaptation condition of the standard gamma value and the current gamma chip includes:
and determining the adaptation condition of the standard gamma value and the current gamma chip based on the standard gamma storage address.
Optionally, the step of determining the adaptation condition of the standard gamma value and the current gamma chip based on the standard gamma storage address includes:
under the condition that the standard gamma storage address is consistent with the gamma storage address of the current gamma chip, determining that the standard gamma value is matched with the current gamma chip;
and under the condition that the standard gamma storage address is inconsistent with the gamma storage address of the current gamma chip, determining that the standard gamma value is not matched with the current gamma chip.
Optionally, the standard gamma value further includes: standard gamma voltage values;
the step of comparing the output signal with the standard gamma value and determining a gamma correction result according to the comparison result comprises the following steps:
performing analog-to-digital conversion on the output signal to obtain an output voltage value;
comparing the output voltage value with the standard gamma voltage value;
under the condition that the comparison result is that the output voltage value is the same as the standard gamma voltage value, determining that the gamma correction is successful;
and under the condition that the comparison result is that the output voltage value is different from the standard gamma voltage value, determining that gamma correction is unsuccessful.
Optionally, the step of obtaining the standard gamma value includes:
reading a first gamma voltage signal corresponding to the standard gamma value from a preset memory;
and performing analog-to-digital conversion on the first gamma voltage signal to obtain the standard gamma value.
Optionally, the step of writing the corrected gamma value to the current gamma chip includes:
performing digital-to-analog conversion on the corrected gamma value to obtain a second gamma voltage signal;
and sending the second gamma voltage signal to the current gamma chip to complete writing of the corrected gamma value.
Optionally, before the step of acquiring the standard gamma value, the gamma correction method further includes:
and carrying out automatic gamma correction based on a preset standard gamma chip and a preset debugging machine to obtain a standard gamma value.
In addition, to achieve the above object, the present application further provides a driving circuit of a display panel, the driving circuit of the display panel including:
the source electrode driving plate comprises a flash memory for storing data;
the control panel is connected with the display panel and the source driving plate, the control panel comprises a gamma chip and a time sequence controller which are connected with each other, the gamma chip is connected with the display panel and is used for conveying gamma signals to the display panel, the time sequence controller is connected with the source driving plate and the display panel, and the time sequence controller is used for executing the gamma correction method.
In addition, in order to achieve the above object, the present application further provides a display panel, which includes a panel body and the driving circuit of the display panel as described above, the driving circuit of the display panel being disposed in the non-display area of the panel body.
In addition, to achieve the above object, the present application also provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of the gamma correction method as described above.
The application provides a gamma correction method, a driving circuit of a display panel and the display panel, wherein the gamma correction method comprises the following steps: acquiring a standard gamma value, and determining the adaptation condition of the standard gamma value and a current gamma chip; under the condition that the standard gamma value is not matched with the current gamma chip, converting the standard gamma value into a correction gamma value matched with the current gamma chip; writing the corrected gamma value into the current gamma chip; and obtaining an output signal generated by the current gamma chip based on the correction gamma value, comparing the output signal with the standard gamma value, and determining a gamma correction result according to a comparison result.
According to the method and the device, the standard gamma value is converted to obtain the correction gamma value matched with the current gamma chip, and another standard gamma value corresponding to the current gamma chip does not need to be debugged again, so that different gamma chips can be compatible with one group of standard gamma values, the technical defect that multiple types of Auto P-gamma machine software need to be developed for driving boards assembled by different ICs in the prior art is overcome, development cost is reduced, and management difficulty is reduced.
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In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only a part of the embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of a gamma correction method according to an embodiment of the present disclosure;
fig. 2 is a schematic structural diagram of a driving circuit of a display panel according to an embodiment of the present disclosure;
fig. 3 is a schematic structural diagram of a display panel according to an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system configurations, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. However, it will be apparent to one skilled in the art that the embodiments of the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the embodiments of the present application with unnecessary detail.
It should be noted that although a logical order is illustrated in the flowchart, in some cases, the steps illustrated or described may be performed in an order different from that in the flowchart. The terms first, second and the like in the description and in the claims and in the above-described figures, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
It should also be appreciated that references to "one embodiment" or "some embodiments" or the like described in the specification of embodiments of the present application mean that a particular feature, structure, or characteristic described in connection with the embodiment is included in one or more embodiments of the present application. Thus, appearances of the phrases "in one embodiment," "in some embodiments," "in other embodiments," and the like in the specification are not necessarily all referring to the same embodiment, but mean "one or more but not all embodiments" unless expressly specified otherwise. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless expressly specified otherwise.
With the increasing competitive pressure of the display industry, the display is updated more and more rapidly. In order to quickly preempt the market, the same project is often pushed to multiple customers, but because different customers have different demands on products, one project can hardly meet the market demand if only one driving board is provided, so that the same project can develop multiple driving boards to meet the demands of different customers.
Because the driver board is designed to take into account the configuration of different ICs (Integrated Circuit, integrated circuits) for customer selection, and the ICs of different manufacturers may have differences in design, the Auto P-gamma data obtained after the Auto P-gamma is completed by using the driver board with different IC configurations is not shared, and the Auto P-gamma machine needs to design corresponding software when the Auto P-gamma machine performs Auto P-gamma for the driver board with different IC configurations, but if the same project develops multiple Auto P-gamma machine software, development cost and management difficulty are greatly increased.
Based on this, the embodiment of the application provides a gamma correction method, a driving circuit of a display panel and a display panel, wherein the gamma correction method comprises the following steps: acquiring a standard gamma value, and determining the adaptation condition of the standard gamma value and a current gamma chip; under the condition that the standard gamma value is not matched with the current gamma chip, converting the standard gamma value into a correction gamma value matched with the current gamma chip; writing the corrected gamma value into the current gamma chip; and obtaining an output signal generated by the current gamma chip based on the correction gamma value, comparing the output signal with the standard gamma value, and determining a gamma correction result according to a comparison result.
According to the embodiment of the application, the standard gamma value is converted to obtain the correction gamma value matched with the current gamma chip, and another standard gamma value corresponding to the current gamma chip does not need to be debugged again, so that different gamma chips can be compatible with one group of standard gamma values, the technical defect that multiple types of Auto P-gamma machine software need to be developed for driving boards assembled by different ICs in the prior art is overcome, development cost is reduced, and management difficulty is reduced.
The gamma correction method, the driving circuit of the display panel and the display panel provided in the embodiments of the present application are specifically described through the following embodiments, and the gamma correction method in the embodiments of the present application is described first.
Referring to fig. 1, fig. 1 is a schematic flow chart of a gamma correction method according to an embodiment of the present application, as shown in fig. 1, the gamma correction method according to the present embodiment includes steps S10 to S40:
step S10, obtaining a standard gamma value, and determining the adaptation condition of the standard gamma value and a current gamma chip;
it should be noted that, in this embodiment, the execution body is the timing controller TCON in the driving circuit of the display panel, and the current Gamma chip is the Gamma IC in the driving circuit of the display panel, and the application scenario of this embodiment is: the gamma value of the current gamma chip in the driving circuit of the display panel needs to be corrected; in the related art, the Auto P-gamma debugging is generally performed on the current gamma chip through a debugging machine connected with the display panel to obtain corresponding Auto P-gamma data, but the scheme is necessary to configure a set of corresponding Auto P-gamma software for different gamma chips, so that the development cost and the management difficulty are high; based on this, in order to solve the problem, in this embodiment, when gamma correction is performed on the current gamma chip, the standard gamma value obtained after Auto P-gamma is completed based on the preset standard gamma chip is directly obtained, if the standard gamma value can be adapted to the current gamma chip, the development cost is remarkably saved without performing gamma correction, if the standard gamma value cannot be adapted, the standard gamma value is adjusted through the subsequent steps so that the standard gamma value can be adapted to the current gamma chip, and still the Auto P-gamma debugging still does not need to be performed again through the debugging machine, and the development cost is also saved.
As an example, the step of acquiring the standard gamma value in the step S10 may include:
step S11, reading a first gamma voltage signal corresponding to the standard gamma value from a preset memory;
and step S12, performing analog-to-digital conversion on the first gamma voltage signal to obtain the standard gamma value.
It should be noted that, in this embodiment, the preset memory may be a flash memory in a source driver of the display panel, and the source driver Board may be an XB Board (X-Board, horizontal circuit Board); the first gamma voltage signal is an analog signal containing the standard gamma value stored in the flash memory, and the TCON needs to perform analog-to-digital conversion on the analog signal after obtaining the analog signal from the flash memory, so as to obtain the standard gamma value in the form of a digital signal.
As an example, before the above step S10, the gamma correction method may further include:
and step A, carrying out automatic gamma correction based on a preset standard gamma chip and a preset debugging machine to obtain a standard gamma value.
It will be appreciated that the implementation preconditions of this embodiment are: the TCON has previously completed automatic gamma correction based on a standard chip and a debugging tool to obtain a standard gamma value used as a template.
Step S20, converting the standard gamma value into a correction gamma value adapted to the current gamma chip under the condition that the standard gamma value is not adapted to the current gamma chip;
it can be understood that, since the present embodiment does not perform automatic gamma correction on the current gamma chip by the debugging machine, the existing standard gamma value is targeted to correct the gamma value of the current gamma chip, specifically, the standard gamma value can be converted into the corrected gamma value of the video of the current gamma chip in a storage manner and in a position which can be both the same as those of the current gamma chip by a preset conversion formula.
In some possible embodiments, the standard gamma value comprises: a standard gamma storage address; the step of converting the standard gamma value into a corrected gamma value adapted to the current gamma chip in the above step S20 may include:
step S21, converting the standard gamma value into a decimal number;
step S22, substituting the decimal number into a preset conversion formula to obtain a calculation result, wherein the preset conversion formula is used for converting the standard gamma value adapting to the standard gamma storage address into a corrected gamma value adapting to the gamma storage address of the current gamma chip;
and S23, rounding and converting the calculation result into hexadecimal numbers to obtain a corrected gamma value which is matched with the current gamma chip.
It should be noted that, in this embodiment, in order to enable the standard gamma value to be adapted to the current gamma chip, the one-to-one correspondence between the standard gamma voltage value and the standard gamma storage address needs to be adjusted, so that the standard gamma voltage value can be in one-to-one correspondence with the gamma storage address of the current gamma chip, and then can be written into the current gamma chip.
As an example, the timing controller TCON in the current display panel may first read a code (i.e., a standard gamma value) in an address in the flash memory, convert the code into a decimal number, convert the decimal number through a preset conversion formula to obtain a calculation result, and then round the calculation result and convert the calculation result into a hexadecimal number, where the hexadecimal number is equivalent to a corrected gamma value adapted to the current gamma chip.
As an example, the preset conversion formula may be (VREF/adjustable code range) 1024/AVDD, where VREF is the standard voltage of gamma IC, gm1+0.2 < VREF-DAC < VAA-0.5, AVDD is the analog voltage provided to COF, GM has 10 bits, so the code adjustable value is 10 th power of 2, that is 1024, the adjustable range needs to remove one gamma, so 1023.
As an example, TCON reads GM code (corresponding to a standard gamma value) in XB FLASH, where the address is 0X00003-0X00001E (corresponding to a standard gamma storage address), converts GM code into decimal, calculates GM code of KA734P (i.e. the current gamma chip) by formula gm= (14.69961/1023X code) X1024/15.3, rounds the calculation result, and converts the calculation result into hexadecimal number, where the hexadecimal number is corresponding to a corrected gamma value adapted to the current gamma chip.
As an example, TCON reads the VCOM code in the XB FLASH (corresponding to the standard gamma value), the address is 0x00002 (corresponding to the standard gamma storage address), the VCOM code is converted into decimal, and the VCOM code of KA734P (i.e. the current gamma chip) is calculated by the formula vcom= (31251 x code+596078)/46617, the calculation result is rounded and then converted into hexadecimal number, and the hexadecimal number is equivalent to the corrected gamma value adapted to the current gamma chip.
Step S30, writing the corrected gamma value into the current gamma chip;
it will be appreciated that after the conversion from the standard gamma value to the corrected gamma value is completed, the corrected gamma value obtained includes a gamma value that can be adapted to the current gamma chip, so that it is written into the current gamma chip to implement the gamma value correction for the current gamma chip.
In some possible embodiments, the step of writing the corrected gamma value to the current gamma chip in step S30 may include:
step S31, performing digital-to-analog conversion on the corrected gamma value to obtain a second gamma voltage signal;
step S32, sending the second gamma voltage signal to the current gamma chip to complete writing of the corrected gamma value.
It can be understood that, since the corrected gamma value obtained by the TCON after data conversion by the standard gamma value is also a digital signal, it is required to convert the corrected gamma value into an analog signal, and then send the analog signal to the current gamma chip to complete writing of the corrected gamma value.
Step S40, obtaining an output signal generated by the current gamma chip based on the corrected gamma value, comparing the output signal with the standard gamma value, and determining a gamma correction result according to the comparison result.
As an example, the standard gamma values further include: standard gamma voltage values; in step S40, the step of comparing the output signal with the standard gamma value and determining a gamma correction result according to the comparison result includes:
step S41, carrying out analog-to-digital conversion on the output signal to obtain an output voltage value;
step S42, comparing the output voltage value with the standard gamma voltage value;
step S43, if the comparison result is that the output voltage value is the same as the standard gamma voltage value, determining that the gamma correction is successful;
step S44, determining that the gamma correction is unsuccessful when the comparison result is that the output voltage value is different from the standard gamma voltage value.
It can be understood that the gamma correction result includes that the gamma correction is successful, that is, the standard gamma voltage value carried by the corrected gamma value successfully covers the gamma value of the current gamma chip, and that the gamma correction is unsuccessful, that is, the standard gamma voltage value carried by the corrected gamma value does not cover the gamma value of the current gamma chip.
After writing the corrected gamma value into the current gamma chip, determining whether the writing is successful according to the output signal of the current gamma chip, specifically, firstly acquiring the gamma voltage value output by the current gamma chip, then comparing the gamma voltage value with the standard gamma voltage value carried by the standard gamma voltage value, and under the condition that the two voltage values are the same, describing that the corrected gamma value carried the standard gamma voltage value is successfully written into the current gamma chip, so that the original gamma value in the gamma storage address of the current gamma chip is successfully covered by the standard gamma voltage value; under the condition that the two voltage values are different, the fact that the correction gamma value carrying the standard gamma voltage value is not successfully written into the current gamma chip is explained, and the standard gamma voltage value does not cover the original gamma value in the gamma storage address of the current gamma chip.
As an example, the same Gamma voltage value is stored differently on different Gamma ICs, which results in different combinations of CBs making Auto Pgamma values not shared. Because the communication protocol between Tcon and XB Flash is the same, only need to add an algorithm according to different Gamma IC on the software of the Tcon IC of different CBs, namely Tcon firstly converts the actual voltage value read to the Auto PGamma data into a digital signal, and Tcon IC converts the read Auto PGamma value into a corresponding numerical signal according to the storage mode and the position difference of the Gamma value between different Gamma ICs, and then writes the corresponding numerical signal into a corresponding register position, so as to achieve the compatible effect. Meanwhile, the Tcon is compared with the value read from the XB Flash to the Auto Pgamma through the 12C read-back Gamma IC, so that no difference of the output voltage is ensured.
As an example, after the control board in the driving circuit of the display panel is connected to the preset memory XB Flash, the control board is powered down and powered up again to read the Auto P-Gamma value stored in the XB Flash, and because different Gamma ICs have great differences in register positions and adjustment manners in design, the Auto P-Gamma value made based on the standard control board cannot be directly applied to the control board in the driving circuit of the display panel, and therefore, the adaptive Gamma value of the control board in the driving circuit of the display panel can be obtained after the Auto P-Gamma value is subjected to data conversion.
The embodiment provides a gamma correction method, which converts a standard gamma value through a time sequence controller TCON to obtain a corrected gamma value matched with a current gamma chip, and does not need to debug another standard gamma value corresponding to the current gamma chip again, so that different gamma chips can be compatible with one group of standard gamma values, the technical defect that a plurality of types of Auto P-gamma machine software are required to be developed for driving boards assembled by different ICs in the prior art is overcome, the development cost is reduced, and the management difficulty is reduced. The technical defect that multiple types of Auto P-gamma machine software need to be developed aiming at driving boards assembled by different ICs in the prior art is overcome, the development cost is reduced, and the management difficulty is reduced.
As an example, the step of determining the adaptation of the standard gamma value to the current gamma chip in the step S10 may include:
and step S13, determining the adaptation condition of the standard gamma value and the current gamma chip based on the standard gamma storage address.
It should be understood that when the TCON converts the first gamma voltage signal into the standard gamma value, the standard gamma value includes the standard gamma voltage value and the standard gamma storage address corresponding to the standard gamma voltage value one by one (i.e. the storage address of the standard gamma value in the standard gamma chip), by comparing the standard gamma storage address with the storage address used for storing the gamma value in the current gamma chip, it can be known whether the standard gamma value is adapted to the current gamma chip.
As an example, the step S13 may include:
step S131, under the condition that the standard gamma storage address is consistent with the gamma storage address of the current gamma chip, determining that the standard gamma value is matched with the current gamma chip;
step S132, in the case that the standard gamma storage address is inconsistent with the gamma storage address of the current gamma chip, determining that the standard gamma value is not matched with the current gamma chip.
It should be noted that, the gamma storage address of the current gamma chip is a field in the current gamma chip for storing the gamma value, it can be understood that when the standard gamma storage address corresponding to the standard gamma voltage value is consistent with the gamma storage address of the current gamma chip, the standard gamma voltage value can be directly written into the current gamma chip; when the standard gamma storage address corresponding to the standard gamma voltage value is inconsistent with the gamma storage address of the current gamma chip, the standard gamma voltage value cannot be directly written into the current gamma chip, and then the standard gamma voltage value needs to be adjusted so as to be suitable for the current gamma chip.
As an example, assuming that the standard gamma value includes a standard gamma storage address of 0x00002, if the storage address for storing the gamma value in the current gamma chip is also 0x00002, it is determined that the standard gamma value is adapted to the current gamma chip, and at this time, the standard gamma value may be directly written into the current gamma chip to correct the gamma value of the current gamma chip without conversion; in contrast, if the storage address used for storing the gamma value in the current gamma chip is not 0x00002, the standard gamma value is determined to be not matched with the current gamma chip, and then the standard gamma value needs to be converted based on the address difference of the two chips to obtain a corrected gamma value, and then the corrected gamma value is written into the current gamma chip to correct the gamma value of the current gamma chip.
In addition, an embodiment of the present application further provides a driving circuit of a display panel, referring to fig. 2, fig. 2 is a schematic structural diagram of the driving circuit of the display panel according to an embodiment of the present application, where the driving circuit of the display panel includes:
the source electrode driving plate comprises a flash memory for storing data;
the control panel is connected with the display panel and the source driving plate, the control panel comprises a gamma chip and a time schedule controller which are connected with each other, the gamma chip is connected with the display panel and is used for conveying gamma signals to the display panel, the time schedule controller is connected with the source driving plate and the display panel, and the time schedule controller is used for executing the gamma correction method provided in the embodiment.
The driving circuit of the display panel provided in this embodiment belongs to the same inventive concept as the gamma correction method provided in the above embodiment, and technical details not described in detail in this embodiment can be seen in any of the above embodiments, and this embodiment has the same advantages as the gamma correction method.
In addition, the embodiment of the application also provides a display panel, and the gamma correction method proposed by the embodiment can be executed by a driving circuit of the display panel, and the driving circuit of the display panel is integrated in the display panel. The display panel can be applied to display equipment, and the display equipment can be any product or component with a display function, such as a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
Referring to fig. 3, fig. 3 is a schematic hardware structure of a display panel according to an embodiment of the present application. As shown in fig. 3, the display panel may include a panel body and the driving circuit of the display panel provided in the above embodiment, where the driving circuit of the display panel is disposed in the non-display area of the panel body.
It will be appreciated by those skilled in the art that the structure shown in fig. 3 is not limiting of the display panel and may include more or fewer components than shown, or may combine certain components, or may be arranged in different components.
The display panel according to the present embodiment and the gamma correction method according to the foregoing embodiments belong to the same inventive concept, and technical details not described in detail in the present embodiment can be seen in any of the foregoing embodiments, and the present embodiment has the same advantages as those of performing the foregoing gamma correction method.
Furthermore, the embodiments of the present application also propose a computer readable storage medium, which is applied to a computer, and the computer readable storage medium may be a non-volatile computer readable storage medium, and the computer readable storage medium stores thereon a computer program, which when executed by a processor, implements the gamma correction method according to any of the embodiments described above.
Those of ordinary skill in the art will appreciate that all or some of the steps, systems, and methods disclosed above may be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components may be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). The term computer storage media includes both volatile and nonvolatile, removable and non-removable media implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data, as known to those skilled in the art. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital Versatile Disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tape, magnetic disk storage or other magnetic storage devices, or any other medium which can be used to store the desired information and which can be accessed by a computer. Furthermore, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules or other data in a modulated data signal such as a carrier wave or other transport mechanism and includes any information delivery media.
While the preferred embodiments of the present application have been described in detail, the embodiments are not limited to the above-described embodiments, and various equivalent modifications and substitutions can be made by those skilled in the art without departing from the spirit of the embodiments, and these equivalent modifications and substitutions are intended to be included in the scope of the embodiments of the present application as defined in the appended claims.
Claims (10)
1. A gamma correction method, the gamma correction method comprising:
acquiring a standard gamma value, and determining the adaptation condition of the standard gamma value and a current gamma chip;
under the condition that the standard gamma value is not matched with the current gamma chip, converting the standard gamma value into a correction gamma value matched with the current gamma chip;
writing the corrected gamma value into the current gamma chip;
and obtaining an output signal generated by the current gamma chip based on the correction gamma value, comparing the output signal with the standard gamma value, and determining a gamma correction result according to a comparison result.
2. The gamma correction method of claim 1, wherein the standard gamma value comprises: a standard gamma storage address;
the step of converting the standard gamma value into a corrected gamma value adapted to a current gamma chip includes:
converting the standard gamma value into a decimal number;
substituting the decimal number into a preset conversion formula to obtain a calculation result, wherein the preset conversion formula is used for converting the standard gamma value adapting to the standard gamma storage address into a corrected gamma value adapting to the gamma storage address of the current gamma chip;
and rounding and converting the calculation result into hexadecimal numbers to obtain a correction gamma value which is matched with the current gamma chip.
3. The gamma correction method of claim 2, wherein the step of determining the fit of the standard gamma value to the current gamma chip comprises:
and determining the adaptation condition of the standard gamma value and the current gamma chip based on the standard gamma storage address.
4. The gamma correction method as set forth in claim 3, wherein the step of determining the adaptation of the standard gamma value to the current gamma chip based on the standard gamma storage address includes:
under the condition that the standard gamma storage address is consistent with the gamma storage address of the current gamma chip, determining that the standard gamma value is matched with the current gamma chip;
and under the condition that the standard gamma storage address is inconsistent with the gamma storage address of the current gamma chip, determining that the standard gamma value is not matched with the current gamma chip.
5. The gamma correction method of claim 2, wherein the standard gamma value further comprises: standard gamma voltage values;
the step of comparing the output signal with the standard gamma value and determining a gamma correction result according to the comparison result comprises the following steps:
performing analog-to-digital conversion on the output signal to obtain an output voltage value;
comparing the output voltage value with the standard gamma voltage value;
under the condition that the comparison result is that the output voltage value is the same as the standard gamma voltage value, determining that the gamma correction is successful;
and under the condition that the comparison result is that the output voltage value is different from the standard gamma voltage value, determining that gamma correction is unsuccessful.
6. The gamma correction method as set forth in claim 1, wherein the step of acquiring the standard gamma value includes:
reading a first gamma voltage signal corresponding to the standard gamma value from a preset memory;
and performing analog-to-digital conversion on the first gamma voltage signal to obtain the standard gamma value.
7. The gamma correction method as set forth in claim 1, wherein the writing of the corrected gamma value to the current gamma chip includes:
performing digital-to-analog conversion on the corrected gamma value to obtain a second gamma voltage signal;
and sending the second gamma voltage signal to the current gamma chip to complete writing of the corrected gamma value.
8. The gamma correction method according to any one of claims 1 to 7, wherein before the step of acquiring a standard gamma value, the gamma correction method further comprises:
and carrying out automatic gamma correction based on a preset standard gamma chip and a preset debugging machine to obtain a standard gamma value.
9. A driving circuit of a display panel, characterized in that the driving circuit of the display panel comprises:
the source electrode driving plate comprises a flash memory for storing data;
a control board connected to the display panel and the source driving board, the control board including a gamma chip and a timing controller connected to each other, the gamma chip connected to the display panel for transmitting gamma signals to the display panel, the timing controller connected to the source driving board and the display panel, the timing controller for performing the gamma correction method according to any one of claims 1 to 8.
10. A display panel comprising a panel body and the drive circuit of the display panel of claim 9, the drive circuit of the display panel being disposed in a non-display region of the panel body.
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| CN202310282777.0A CN116386499A (en) | 2023-03-21 | 2023-03-21 | Gamma correction method, driving circuit of display panel and display panel |
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| CN202310282777.0A CN116386499A (en) | 2023-03-21 | 2023-03-21 | Gamma correction method, driving circuit of display panel and display panel |
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