CN116704970B - Correction system and method for display signal processing - Google Patents
Correction system and method for display signal processing Download PDFInfo
- Publication number
- CN116704970B CN116704970B CN202310973994.4A CN202310973994A CN116704970B CN 116704970 B CN116704970 B CN 116704970B CN 202310973994 A CN202310973994 A CN 202310973994A CN 116704970 B CN116704970 B CN 116704970B
- Authority
- CN
- China
- Prior art keywords
- module
- display
- error
- value
- driving
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000012545 processing Methods 0.000 title claims abstract description 83
- 238000012937 correction Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005259 measurement Methods 0.000 claims abstract description 25
- 239000004973 liquid crystal related substance Substances 0.000 claims description 41
- 238000004458 analytical method Methods 0.000 claims description 21
- 230000004044 response Effects 0.000 claims description 19
- 230000007306 turnover Effects 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 14
- 238000007781 pre-processing Methods 0.000 claims description 12
- 238000010586 diagram Methods 0.000 description 11
- 230000008859 change Effects 0.000 description 5
- 238000004891 communication Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000003672 processing method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 241001270131 Agaricus moelleri Species 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000003491 array Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
Classifications
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3607—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 by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
-
- 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
- G09G3/34—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 by control of light from an independent source
- G09G3/36—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 by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
-
- 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
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The application provides a correction system and a correction method for display signal processing, wherein the correction system comprises an error measurement module, an error feedback module and a driving module; the error measurement module is used for measuring the phase value or gray scale value of the display chip; the error feedback module is used for calculating an error value of the phase value or the gray scale value, and determining a processing strategy based on the error value and a preset reference voltage; the driving module is used for executing the processing strategy, generating corresponding driving signals and sending the driving signals to the display chip. The application can combine the error of the phase value or the gray scale value of the display picture to generate a corresponding processing strategy, determine the corresponding reference voltage turning frequency and the turning step length, correct the problems of poor curve linearity and poor stability of the display picture caused by voltage disturbance due to the turning of the reference voltage, and can stably output the phase value or the gray scale value of the display picture, thereby improving the curve linearity and the stability of the display picture.
Description
Technical Field
The present application relates to the field of signal processing technologies, and in particular, to a system and a method for correcting display signal processing.
Background
In the existing liquid crystal display technology, the driving voltage of the liquid crystal device cannot be fixed at a certain value based on the characteristic of the liquid crystal molecules, otherwise, the liquid crystal molecules are polarized with time, and the optical property of the liquid crystal molecules is gradually lost. Therefore, in order to avoid this phenomenon, it is necessary to polarize the driving voltage of the liquid crystal molecules to avoid the characteristics of the liquid crystal molecules from being damaged. Therefore, the driving voltage of the liquid crystal device has two polarities, namely positive polarity and negative polarity, and has a group of gray scales with the same brightness, so that when the absolute value of the voltage difference between the upper glass layer and the lower glass layer is fixed, the displayed gray scales are identical. However, in both cases, the directions of rotation of the liquid crystal molecules are completely opposite, and the characteristic damage caused by the fact that the directions of rotation of the liquid crystal molecules are always fixed in one direction can be avoided.
Based on the above liquid crystal characteristics, due to the existence of AB frame overturn of a display chip or the comprehensive influence of factors such as chip circuit leakage caused by production process reasons, a breakpoint often exists at the reference voltage overturn position and fluctuation exists in the reference voltage overturn position from the phase or gray scale curve of an output result, and the defects of poor linearity and poor stability of an output effect curve are overcome.
Disclosure of Invention
Accordingly, the present application is directed to a system and a method for correcting display signal processing, which can combine the errors of the phase value or the gray scale value of the display frame to generate a corresponding processing strategy, determine the corresponding reference voltage inversion frequency and the inversion step length, correct the problems of poor linearity and poor stability of the curve of the display frame caused by the voltage disturbance due to the reference voltage inversion, and stably output the phase value or the gray scale value of the display frame, thereby improving the linearity and stability of the curve of the display frame.
In a first aspect, an embodiment of the present application provides a correction system for display signal processing, where the system includes an error measurement module, an error feedback module, and a driving module; the error measurement module is respectively connected with the error feedback module and the display chip to be processed; the error feedback module is connected with the driving module; the driving module is also connected with the display chip to be processed; the error measurement module is used for measuring the phase value or gray scale value of the display chip; the error feedback module is used for comparing the phase value or the gray level value with standard data, calculating an error value of the phase value or the gray level value, and determining a processing strategy based on the error value and a preset reference voltage; the processing strategy is to determine the corresponding reference voltage turnover frequency and turnover step length; the driving module is used for executing the processing strategy, generating corresponding driving signals and sending the driving signals to the display chip.
Further, the driving module includes: the system comprises a voltage correction module and a row and column analysis module; the voltage correction module is connected with the row-column analysis module; the row and column analysis module is connected with the display chip: the voltage correction module is used for generating a corresponding correction signal based on the processing strategy; the row-column analysis module is used for generating a corresponding row-column analysis signal based on the correction signal and outputting the corresponding row-column analysis signal to the display chip.
Further, the driving module also comprises a storage module and a parameter configuration module; the storage module is respectively connected with the parameter configuration module and the row-column analysis module; the parameter configuration module is connected with the storage module and the voltage correction module; the storage module is used for receiving the processing strategy and storing the processing strategy according to preset signal characteristics; the parameter configuration module is used for carrying out functional configuration on the voltage correction module based on the processing strategy.
Further, the driving module further comprises a signal preprocessing module; the signal preprocessing module is respectively connected with the error feedback module, the storage module and the parameter configuration module; the signal preprocessing module is used for preprocessing the processing strategy generated by the error feedback module into a strategy electric signal and sending the strategy electric signal to the storage module for storage; the parameter configuration module is used for calling the strategy electric signal in the storage module, and carrying out functional configuration on the voltage correction module based on the strategy electric signal and generating a corresponding driving signal.
Further, the system also comprises a liquid crystal response module; the liquid crystal response module is connected with the error feedback module; the liquid crystal response module is used for measuring response time of the external liquid crystal material; the error feedback module is used for determining a processing strategy by combining the response time and the error value of the external liquid crystal material with a preset reference voltage.
Further, the duration of the reference voltage flip-flop across all rows of the liquid crystal material is less than the response time.
Further, the inversion frequency of the reference voltage of the system is asynchronously adjustable from the display frame rate of the external liquid crystal material.
Further, the display chip is a video image display chip or a spatial light modulator.
In a second aspect, an embodiment of the present application further provides a method for processing a display signal, where the method is applied to a correction system for processing a display signal in any one of the foregoing embodiments, where the system includes an error measurement module, an error feedback module, and a driving module; the error measurement module is respectively connected with the error feedback module and the display chip to be processed; the error feedback module is connected with the driving module; the driving module is also connected with the display chip to be processed; the method comprises the following steps: measuring a phase value or a gray scale value of the display chip; comparing the phase value or the gray level value with standard data, calculating an error value of the phase value or the gray level value, and determining a processing strategy based on the error value and a preset reference voltage; the processing strategy is to determine the corresponding reference voltage turnover frequency and turnover step length; executing the processing strategy, generating a corresponding driving signal and sending the driving signal to the display chip to correct the phase value or the gray scale value of the display chip.
The embodiment of the application has the following beneficial effects:
the embodiment of the application provides a correction system and a correction method for display signal processing, wherein the system comprises an error measurement module, an error feedback module and a driving module; the error measurement module is respectively connected with the error feedback module and the display chip to be processed; the error feedback module is connected with the driving module; the driving module is also connected with the display chip to be processed; the error measurement module is used for measuring the phase value or gray scale value of the display chip; the error feedback module is used for comparing the phase value or the gray level value with standard data, calculating an error value of the phase value or the gray level value, and determining a processing strategy based on the error value and a preset reference voltage; the processing strategy is to determine the corresponding reference voltage turnover frequency and turnover step length; the driving module is used for executing the processing strategy, generating corresponding driving signals and sending the driving signals to the display chip. The method can combine the errors of the phase value or the gray scale value of the output display picture to generate a corresponding processing strategy, determine the corresponding reference voltage turning frequency and the turning step length, correct the problems of poor curve linearity and poor stability of the display picture caused by voltage disturbance due to the turning of the reference voltage, and can stably output the phase value or the gray scale value of the display picture, thereby improving the curve linearity and the stability of the display picture.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a correction system for signal processing according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another calibration system for signal processing according to an embodiment of the present application;
FIG. 3 is a reference voltage traversal path diagram according to an embodiment of the present application;
FIG. 4 is a flowchart of a method for displaying signal processing according to an embodiment of the present application;
FIG. 5 is a schematic diagram of a reference voltage traversing all rows according to an embodiment of the present application;
FIG. 6 is a schematic diagram of a display when the reference voltage flipping frequency is 3 according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Some embodiments of the present application are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.
The present embodiment provides a correction system for display signal processing, wherein, referring to a schematic structural diagram of the correction system for display signal processing shown in fig. 1, as shown in fig. 1, the system includes an error measurement module 10, an error feedback module 20, and a driving module 30; the error measurement module 10 is respectively connected with the error feedback module 20 and the display chip 00 to be processed; the error feedback module 20 is connected with the driving module 30; the driving module is also connected with the display chip 00 to be processed; the error measurement module is used for measuring the phase value or gray scale value of the display chip;
specifically, in the existing silicon-based chip display technology, a silicon-based CMOS integrated circuit is used for pixel driving, the thickness of a liquid crystal cell is small, and spacer particles are doped in a frame glue instead of being scattered in the whole screen. The difference from the ordinary IC is that the top layer of the chip is not protected by a thick passivation layer, but a liquid crystal panel is fabricated for display. The electrical signal at the pixel modulates the deflection direction of the liquid crystal, thereby modulating the amplitude of the incident light, forming an image. The higher the gray scale accuracy, the finer the gray scale of the image. Therefore, the phase value or the gray level value of the image output by the display measurement display chip can be directly measured to judge the image quality of the generated image.
The error feedback module is used for comparing the phase value or the gray level value with standard data, calculating an error value of the phase value or the gray level value, and determining a processing strategy based on the error value and a preset reference voltage; the processing strategy is to determine the corresponding reference voltage turnover frequency and turnover step length; in practical applications, the reference voltage flipping frequency and the flipping step length can be set.
Specifically, in the existing display chip circuit, gray scale is realized by the voltage difference between the pixel electrode and the common electrode. Due to the material properties of liquid crystals, direct current driving is not possible for a long time but alternating current voltage driving is required. However, due to process variations and upsets, the actual reference voltage will often have a large variation, and the correction and compensation of this reference voltage offset requires fine measurement and scheme.
In practical application, the phase value or the gray level value of the output image can be compared with the standard data, so that an error value of the phase value or the gray level value of the display chip is obtained, and the inversion frequency of the reference voltage and the step length of the reference voltage are set based on the response time of the liquid crystal material, so that the phase value or the gray level value of the display image is corrected, and a stable image picture is generated.
The driving module is used for executing the processing strategy, generating corresponding driving signals and sending the driving signals to the display chip.
In practical applications, specific driving circuits are required for different input video signals, such as driving types of display pixels, colorization modes, resolutions, types of output interfaces, pixel arrangement types, and the like. Therefore, the driving circuit can be utilized to convert the processing strategy determined by the error feedback circuit into the driving signal so as to drive the display chip.
The embodiment of the application provides a correction system for display signal processing, which comprises an error measurement module, an error feedback module and a driving module; the error measurement module is respectively connected with the error feedback module and the display chip to be processed; the error feedback module is connected with the driving module; the driving module is also connected with the display chip to be processed; the error measurement module is used for measuring the phase value or gray scale value of the display chip; the error feedback module is used for comparing the phase value or the gray level value with standard data, calculating an error value of the phase value or the gray level value, and determining a processing strategy based on the error value and a preset reference voltage; the processing strategy is to determine the corresponding reference voltage turnover frequency and turnover step length; the driving module is used for executing the processing strategy, generating corresponding driving signals and sending the driving signals to the display chip. The corresponding processing strategy can be generated based on the error of the phase value or the gray scale value of the output display picture, and the phase value or the gray scale value of the display picture can be stably output, so that the curve linearity and the stability of the display picture are improved.
On the basis of the above embodiment, the embodiment of the present application further provides another display signal processing correction system, and fig. 2 is a schematic structural diagram of another display signal processing correction system according to the embodiment of the present application, where the driving module 30 includes: a voltage correction module 301 and a row and column analysis module 302; the voltage correction module 301 is connected with the error feedback module 20; the row and column analysis module 302 is connected with the display chip 00: the voltage correction module is used for generating a corresponding correction signal based on the processing strategy;
the row-column analysis module is used for generating a corresponding row-column analysis signal based on the correction signal and outputting the corresponding row-column analysis signal to the display chip.
Specifically, through the voltage correction module, the row-column analysis module can be driven to control the change of row-column addresses so as to change the turning positions of reference voltages among different frames until all rows are traversed, the problem that disturbance caused by fixed turning positions is accumulated along with time is solved, and certain positions of a curve are provided with larger pits or protrusions to ensure that the stability of an output phase or gray level curve is poor in an integral effect, and in order to weaken or correct the integral abrupt change point, the abrupt change point is differentiated in time within a plurality of settable frame periods, so that the peak value of the abrupt change point is weakened, the fluctuation range of the whole curve is sufficiently small, and the display chip is driven to be lightened.
In practical application, the driving module further includes a storage module 303 and a parameter configuration module 304; the storage module is respectively connected with the parameter configuration module and the row-column analysis module; the parameter configuration module is connected with the storage module and the voltage correction module;
the storage module is used for receiving the processing strategy and storing the processing strategy according to preset signal characteristics;
the parameter configuration module is used for carrying out functional configuration on the voltage correction module based on the processing strategy.
In practical applications, the driving module 30 further includes a signal preprocessing module 305; the signal preprocessing module is respectively connected with the error feedback module, the storage module and the parameter configuration module;
the signal preprocessing module is used for preprocessing the processing strategy generated by the error feedback module into a strategy electric signal and sending the strategy electric signal to the storage module for storage;
the parameter configuration module is used for calling the strategy electric signal in the storage module, and carrying out functional configuration on the voltage correction module based on the strategy electric signal and generating a corresponding driving signal.
Specifically, the above system further includes a liquid crystal response module 40; the liquid crystal response module 40 is connected with the error feedback module 20;
the liquid crystal response module is used for measuring response time of the external liquid crystal material;
the error feedback module is used for determining a processing strategy by combining the response time and the error value of the external liquid crystal material with a preset reference voltage.
In practical applications, the duration of the reference voltage flip across all the rows of the liquid crystal material is less than the response time in order to make the video picture more stable.
In practical applications, the inversion frequency of the reference voltage of the system is asynchronously adjustable from the display frame rate of the external liquid crystal material.
Specifically, the display chip is a video image display chip or a spatial light modulator.
The embodiment of the application also provides a corresponding method embodiment based on the system embodiment, referring to a flowchart of a method for displaying signal processing shown in fig. 4, wherein the method is applied to the correction system for displaying signal processing of any one of the above, and the system comprises an error measurement module, an error feedback module and a driving module; the error measurement module is respectively connected with the error feedback module and the display chip to be processed; the error feedback module is connected with the driving module; the driving module is also connected with the display chip to be processed; the method comprises the following steps:
step S401, measuring the phase value or gray scale value of the display chip;
step S402, comparing the phase value or the gray scale value with standard data, calculating an error value of the phase value or the gray scale value, and determining a processing strategy based on the error value and a preset reference voltage; the processing strategy is to determine the corresponding reference voltage turnover frequency and turnover step length;
step S403, executing the processing strategy and generating a corresponding driving signal to send to the display chip to correct the phase value or the gray scale value of the display chip.
Specifically, the following describes a practical application process scenario:
here, taking the video source resolution of 1920×1080 as an example, three reference voltages VCOM are configured, and the reference voltage VCOM flipped positions are scrolled in a manner of stepping into 4 lines. The number of reference voltages VCOM and the number of step rows and resolution are not particularly limited. A schematic flow of reference voltage traversal through all rows is shown with reference to fig. 5.
In practical application, the source frame number and the line number can be counted by setting two counters, the frame counter m, the frame count full 1125 is cleared, the line counter n, and the line count full 1125 is used for taking the remainder.
Specifically, the first reference voltage VCOM1 may be set to: starting from row 1, the steps were 4, 5, 9, 13, 17, 1125, 4, 8, 12, 16, 1124, 3, 7, 11, 15, 1123, 2, 6, 10, 14, 1122 in this order, all rows were traversed.
The second reference voltage VCOM2: starting at row 376, steps were 4, 380, 384, 1124, 3, 7, 11, 15, 1123, 2, 6, 10, 14, 1122, 1, 5, 9, 1125, 4, 8, 12, 16, 372 in that order, all rows were traversed.
Third reference voltage VCOM3: starting at line 751, the steps were 4, 755, 759, 1123, 2, 6, 10, 1122, 1, 5, 9, 1125, 4, 8, 12, 1124, 3, 7, 11, 747 in sequence, all lines were traversed.
The 3 reference voltages VCOM traverse the paths of all rows, as shown in FIG. 3 for a reference voltage traversal path diagram.
By analogy, any reference voltage VCOM can be configured, and herein, the display effect can be referred to a display schematic diagram of fig. 6 when the reference voltage flip frequency is 3. Any specific embodiment of phase/gray scale curve correction with a step length can be used for correcting the stability of the phase curve of the spatial light modulator chip, and also can be used for correcting the stability of the gray scale curve of the display chip, and the same can be applied to more different actual requirements, and the application can be used for correcting the stability under any resolution.
The display signal processing method provided by the embodiment of the application has the same technical characteristics as the display signal processing system provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
The embodiment of the present application further provides an electronic device, as shown in fig. 7, which is a schematic structural diagram of the electronic device, where the electronic device includes a processor 121 and a memory 120, and the memory 120 stores computer executable instructions that can be executed by the processor 121, and the processor 121 executes the computer executable instructions to implement the above display signal processing method.
In the embodiment shown in fig. 7, the electronic device further comprises a bus 122 and a communication interface 123, wherein the processor 121, the communication interface 123 and the memory 120 are connected by the bus 122.
The memory 120 may include a high-speed random access memory (RAM, random Access Memory), and may further include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. The communication connection between the system network element and at least one other network element is implemented via at least one communication interface 123 (which may be wired or wireless), which may use the internet, a wide area network, a local network, a metropolitan area network, etc. Bus 122 may be an ISA (Industry Standard Architecture ) bus, PCI (Peripheral Component Interconnect, peripheral component interconnect standard) bus, or EISA (Extended Industry Standard Architecture ) bus, among others. The bus 122 may be classified as an address bus, a data bus, a control bus, or the like. For ease of illustration, only one bi-directional arrow is shown in FIG. 7, but not only one bus or type of bus.
The processor 121 may be an integrated circuit chip with signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware in the processor 121 or instructions in the form of software. The processor 121 may be a general-purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), etc.; but also digital signal processors (Digital Signal Processor, DSP for short), application specific integrated circuits (Application Specific Integrated Circuit, ASIC for short), field-programmable gate arrays (Field-Programmable Gate Array, FPGA for short) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present application may be embodied directly in the execution of a hardware decoding processor, or in the execution of a combination of hardware and software modules in a decoding processor. The software modules may be located in a random access memory, flash memory, read only memory, programmable read only memory, or electrically erasable programmable memory, registers, etc. as well known in the art. The storage medium is located in the memory, and the processor 121 reads the information in the memory, and in combination with the hardware thereof, performs the steps of the display signal processing method of the foregoing embodiment.
The embodiment of the application also provides a computer readable storage medium, which stores computer executable instructions that, when being called and executed by a processor, cause the processor to implement the above display signal processing method, and the implementation of the method is visible in the foregoing embodiment and will not be repeated herein.
The method, system and computer program product of electronic device for upgrading software provided in the embodiments of the present application include a computer readable storage medium storing program codes, where the instructions included in the program codes may be used to execute the method described in the foregoing method embodiment, and specific implementation may refer to the method embodiment and will not be repeated herein.
The relative steps, numerical expressions and numerical values of the components and steps set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer readable storage medium executable by a processor. Based on this understanding, the technical solution of the present application may be embodied essentially or in a part contributing to the prior art or in a part of the technical solution, in the form of a software product stored in a storage medium, comprising several instructions for causing a computer device (which may be a personal computer, a server, a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the system or element to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above examples are only specific embodiments of the present application, and are not intended to limit the scope of the present application, but it should be understood by those skilled in the art that the present application is not limited thereto, and that the present application is described in detail with reference to the foregoing examples: any person skilled in the art may modify or easily conceive of the technical solution described in the foregoing embodiments, or perform equivalent substitution of some of the technical features, while remaining within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present application, and are intended to be included 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 (9)
1. A correction system for display signal processing, which is characterized by comprising an error measurement module, an error feedback module and a driving module; the error measurement module is respectively connected with the error feedback module and the display chip to be processed; the error feedback module is connected with the driving module; the driving module is also connected with the display chip to be processed; wherein, the liquid crystal display device comprises a liquid crystal display device,
the error measurement module is used for measuring the phase value or the gray scale value of the display chip;
the error feedback module is used for comparing the phase value or the gray scale value with standard data, calculating an error value of the phase value or the gray scale value, and determining a processing strategy based on the error value and a preset reference voltage; the processing strategy is to determine the corresponding reference voltage turnover frequency and turnover step length;
the driving module is used for executing the processing strategy, generating a corresponding driving signal and sending the driving signal to the display chip.
2. The correction system for display signal processing according to claim 1, wherein the driving module includes: the system comprises a voltage correction module and a row and column analysis module; the voltage correction module is connected with the row-column analysis module; the row-column analysis module is connected with the display chip: wherein, the liquid crystal display device comprises a liquid crystal display device,
the voltage correction module is used for generating a corresponding correction signal based on the processing strategy;
the row-column analysis module is used for generating row-column analysis signals corresponding to the reference voltage turnover frequency based on the correction signals and outputting the row-column analysis signals to the display chip.
3. The correction system for display signal processing according to claim 2, wherein the driving module further comprises a storage module and a parameter configuration module;
the storage module is respectively connected with the parameter configuration module and the row-column analysis module; the parameter configuration module is connected with the storage module and the voltage correction module;
the storage module is used for receiving the processing strategy and storing the processing strategy according to preset signal characteristics;
the parameter configuration module is used for carrying out functional configuration on the voltage correction module based on the processing strategy.
4. A correction system for display signal processing according to claim 3, wherein said driving module further comprises a signal preprocessing module; the signal preprocessing module is connected with the error feedback module, the storage module and the parameter configuration module respectively;
the signal preprocessing module is used for preprocessing the processing strategy generated by the error feedback module into a strategy electric signal and sending the strategy electric signal to the storage module for storage;
the parameter configuration module is used for calling the strategy electric signal in the storage module, and carrying out functional configuration on the voltage correction module based on the strategy electric signal and generating a corresponding driving signal.
5. The correction system for display signal processing according to claim 1, wherein said system further comprises a liquid crystal response module; the liquid crystal response module is connected with the error feedback module;
the liquid crystal response module is used for measuring response time of an external liquid crystal material;
the error feedback module is used for determining the processing strategy by combining the response time of the external liquid crystal material, the error value and a preset reference voltage.
6. The correction system for display signal processing according to claim 5, wherein a duration of time that said reference voltage is flipped across all rows of said liquid crystal material is less than said response time.
7. The correction system for display signal processing according to claim 1, wherein the inversion frequency of the reference voltage of the system is asynchronously adjustable between the display frame rate of the external liquid crystal material.
8. The correction system for display signal processing according to claim 1, wherein the display chip is a video image display chip or a spatial light modulator.
9. A method of display signal processing, characterized in that the method is applied to the correction system of display signal processing according to any one of claims 1 to 8, which system comprises an error measurement module, an error feedback module and a driving module; the error measurement module is respectively connected with the error feedback module and the display chip to be processed; the error feedback module is connected with the driving module; the driving module is also connected with the display chip to be processed; the method comprises the following steps:
measuring a phase value or a gray scale value of the display chip;
comparing the phase value or the gray scale value with standard data, calculating an error value of the phase value or the gray scale value, and determining a processing strategy based on the error value and a preset reference voltage; the processing strategy is to determine the corresponding reference voltage turnover frequency and turnover step length;
executing the processing strategy, generating a corresponding driving signal and sending the driving signal to the display chip to correct the phase value or the gray scale value of the display chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310973994.4A CN116704970B (en) | 2023-08-04 | 2023-08-04 | Correction system and method for display signal processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310973994.4A CN116704970B (en) | 2023-08-04 | 2023-08-04 | Correction system and method for display signal processing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116704970A CN116704970A (en) | 2023-09-05 |
| CN116704970B true CN116704970B (en) | 2023-10-24 |
Family
ID=87843620
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310973994.4A Active CN116704970B (en) | 2023-08-04 | 2023-08-04 | Correction system and method for display signal processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116704970B (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000045364A1 (en) * | 1999-01-29 | 2000-08-03 | Matsushita Electric Industrial Co., Ltd. | Liquid crystal driving method and liquid crystal driving circuit |
| KR20030054934A (en) * | 2001-12-26 | 2003-07-02 | 엘지.필립스 엘시디 주식회사 | Apparatus and method of driving liquid crystal display device |
| CN1689067A (en) * | 2002-09-12 | 2005-10-26 | 三星电子株式会社 | Circuit for generating driving voltages and liquid crystal display using the same |
| CN101178492A (en) * | 2006-11-10 | 2008-05-14 | 群康科技(深圳)有限公司 | Crystal display device and driving method thereof |
| CN101477152A (en) * | 2008-12-24 | 2009-07-08 | 北京希格玛和芯微电子技术有限公司 | Capacitance detection apparatus and method |
| CN101546528A (en) * | 2008-03-28 | 2009-09-30 | 群康科技(深圳)有限公司 | Liquid crystal display device and drive method thereof |
| CN102054448A (en) * | 2009-10-28 | 2011-05-11 | 群康科技(深圳)有限公司 | Liquid crystal display |
| TW201123154A (en) * | 2009-12-22 | 2011-07-01 | Innolux Display Corp | Liquid crystal display |
| CN102237057A (en) * | 2010-04-21 | 2011-11-09 | 奇景光电股份有限公司 | Liquid crystal display (LCD) device and driving method |
| CN103278981A (en) * | 2013-01-07 | 2013-09-04 | 厦门天马微电子有限公司 | Liquid crystal display panel and driving method thereof |
| CN103677354A (en) * | 2012-09-03 | 2014-03-26 | 炬力集成电路设计有限公司 | Control equipment and signal sampling method |
| CN103913867A (en) * | 2014-03-31 | 2014-07-09 | 昆山龙腾光电有限公司 | Liquid crystal display device and noise elimination method |
| CN106448601A (en) * | 2016-11-03 | 2017-02-22 | 昆山龙腾光电有限公司 | Liquid crystal display device and public voltage driving method of liquid crystal display device in narrow view angle mode |
| CN109994087A (en) * | 2019-04-09 | 2019-07-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device and its driving method |
| CN110349549A (en) * | 2019-07-17 | 2019-10-18 | 京东方科技集团股份有限公司 | Driving method, driving circuit and the display device of liquid crystal display panel |
| CN111833826A (en) * | 2020-07-23 | 2020-10-27 | 昆山龙腾光电股份有限公司 | Common voltage compensation circuit and display device thereof |
| CN215932331U (en) * | 2021-10-06 | 2022-03-01 | 凌巨科技股份有限公司 | Liquid crystal display device with dot inversion |
| CN114360465A (en) * | 2021-12-27 | 2022-04-15 | 厦门天马微电子有限公司 | Liquid crystal display device and driving method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109637481B (en) * | 2019-01-14 | 2021-02-23 | 京东方科技集团股份有限公司 | Common voltage compensation method and device and display device |
-
2023
- 2023-08-04 CN CN202310973994.4A patent/CN116704970B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000045364A1 (en) * | 1999-01-29 | 2000-08-03 | Matsushita Electric Industrial Co., Ltd. | Liquid crystal driving method and liquid crystal driving circuit |
| KR20030054934A (en) * | 2001-12-26 | 2003-07-02 | 엘지.필립스 엘시디 주식회사 | Apparatus and method of driving liquid crystal display device |
| CN1689067A (en) * | 2002-09-12 | 2005-10-26 | 三星电子株式会社 | Circuit for generating driving voltages and liquid crystal display using the same |
| CN101178492A (en) * | 2006-11-10 | 2008-05-14 | 群康科技(深圳)有限公司 | Crystal display device and driving method thereof |
| CN101546528A (en) * | 2008-03-28 | 2009-09-30 | 群康科技(深圳)有限公司 | Liquid crystal display device and drive method thereof |
| CN101477152A (en) * | 2008-12-24 | 2009-07-08 | 北京希格玛和芯微电子技术有限公司 | Capacitance detection apparatus and method |
| CN102054448A (en) * | 2009-10-28 | 2011-05-11 | 群康科技(深圳)有限公司 | Liquid crystal display |
| TW201123154A (en) * | 2009-12-22 | 2011-07-01 | Innolux Display Corp | Liquid crystal display |
| CN102237057A (en) * | 2010-04-21 | 2011-11-09 | 奇景光电股份有限公司 | Liquid crystal display (LCD) device and driving method |
| CN103677354A (en) * | 2012-09-03 | 2014-03-26 | 炬力集成电路设计有限公司 | Control equipment and signal sampling method |
| CN103278981A (en) * | 2013-01-07 | 2013-09-04 | 厦门天马微电子有限公司 | Liquid crystal display panel and driving method thereof |
| CN103913867A (en) * | 2014-03-31 | 2014-07-09 | 昆山龙腾光电有限公司 | Liquid crystal display device and noise elimination method |
| CN106448601A (en) * | 2016-11-03 | 2017-02-22 | 昆山龙腾光电有限公司 | Liquid crystal display device and public voltage driving method of liquid crystal display device in narrow view angle mode |
| CN109994087A (en) * | 2019-04-09 | 2019-07-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device and its driving method |
| CN110349549A (en) * | 2019-07-17 | 2019-10-18 | 京东方科技集团股份有限公司 | Driving method, driving circuit and the display device of liquid crystal display panel |
| CN111833826A (en) * | 2020-07-23 | 2020-10-27 | 昆山龙腾光电股份有限公司 | Common voltage compensation circuit and display device thereof |
| CN215932331U (en) * | 2021-10-06 | 2022-03-01 | 凌巨科技股份有限公司 | Liquid crystal display device with dot inversion |
| CN114360465A (en) * | 2021-12-27 | 2022-04-15 | 厦门天马微电子有限公司 | Liquid crystal display device and driving method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116704970A (en) | 2023-09-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11538434B2 (en) | Timing controller for adjusting refresh rates based on image signals and method for driving display device | |
| JP2019082501A (en) | Display controller, liquid crystal display device, and television receiver | |
| US10019960B2 (en) | Method and apparatus for determining driving voltages | |
| KR101429282B1 (en) | Liquid crystal driver, liquid crystal driving method and liquid crystal display device | |
| US20110310036A1 (en) | Touch panel and pixel aray thereof | |
| US9898954B2 (en) | Liquid crystal panel common electrode voltage adjustment device and liquid crystal panel common electrode voltage adjustment method | |
| US11942054B2 (en) | Driving method of display device, and display device | |
| JP2009020514A (en) | Liquid crystal display with color washout improvement, display panel, and method for driving the same | |
| US20210287622A1 (en) | Pixel voltage compensation method, pixel voltage compensation device, and display device | |
| JP2008040493A (en) | Driving device for display device, and method of compensating image signal | |
| JP2008040493A5 (en) | ||
| US20190325830A1 (en) | Display control method and apparatus, computer readable storage medium, and computer device | |
| CN116704970B (en) | Correction system and method for display signal processing | |
| US11164535B2 (en) | Display control method and apparatus, and display apparatus for improving picture quality | |
| CN101770758B (en) | Liquid crystal display and driving method thereof | |
| CN104505039A (en) | Method and module for reversing polarity, array substrate and liquid crystal display device | |
| US20210358444A1 (en) | Drive adjusting circuit and adjusting method, display device | |
| CN111243538B (en) | Common voltage compensation method and device for display panel, display panel and device | |
| US8786305B2 (en) | Test circuit and test method for detecting electrical defect in TFT-LCD | |
| CN110930913B (en) | Display compensation data, data detection method and device and display panel | |
| US11579728B2 (en) | Touch display device, touch driving circuit and display panel | |
| CN113129849A (en) | Pixel driving circuit and pixel driving method | |
| US20020122041A1 (en) | Method and apparatus for driving liquid crystal display panel | |
| CN111443826B (en) | Display panel compensation method and device | |
| CN113140192A (en) | Gamma curve calibration method, gamma curve calibration device and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |