CN113314084B - Display panel driving method and device and display panel - Google Patents
Display panel driving method and device and display panel Download PDFInfo
- Publication number
- CN113314084B CN113314084B CN202110598251.4A CN202110598251A CN113314084B CN 113314084 B CN113314084 B CN 113314084B CN 202110598251 A CN202110598251 A CN 202110598251A CN 113314084 B CN113314084 B CN 113314084B
- Authority
- CN
- China
- Prior art keywords
- sampling
- voltage
- curve
- chip
- boost chip
- 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
- 238000000034 method Methods 0.000 title claims abstract description 35
- 238000005070 sampling Methods 0.000 claims abstract description 225
- 230000000737 periodic effect Effects 0.000 claims description 31
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 239000010409 thin film Substances 0.000 claims description 4
- 230000009471 action Effects 0.000 abstract description 5
- 238000001514 detection method Methods 0.000 description 8
- 238000004590 computer program Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/027—Arrangements or methods related to powering off a display
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 is suitable for the technical field of panel driving, and provides a driving method, a driving device and a display panel of the display panel, wherein the display panel comprises a boosting chip and a data driving chip, a plurality of sampling voltages are obtained by sampling the boosting chip for a plurality of times, a voltage sampling curve is generated according to the plurality of sampling voltages, then the voltage sampling curve is matched with a preset voltage curve, if the matching is successful, data stored in the data driving chip is cleared, and therefore pixel data stored in the data driving chip is cleared when the boosting chip executes shutdown action, an intelligent linkage framework is established between the boosting chip and the data driving chip, and black picture output during shutdown is guaranteed.
Description
Technical Field
The present application belongs to the field of panel driving technologies, and in particular, to a driving method and a driving apparatus for a display panel, and a display panel.
Background
Due to the limitation of the charging and discharging speed of the liquid crystal, some charges may remain on the liquid crystal panel during shutdown, which may cause the shutdown ghost to be seen by human eyes. It is common practice to generate a control signal when the power is off, so that a Gate Driver or goa (Gate on array) turns on the Thin Film Transistor (TFT) switches of all channels simultaneously, and it is desired to discharge the charges as quickly as possible.
However, since the output data of the data Driver chip (Source Driver) is uncertain when the panel is turned off, the discharging effect varies with the display data of the screen, and it is not guaranteed that the residual charges are completely eliminated.
Disclosure of Invention
In view of this, embodiments of the present disclosure provide a driving method, a driving apparatus, and a display panel, so as to solve the problems that when the panel is turned off, output data of a data driving chip is uncertain, a discharging effect varies with different display data of a screen, and it is not guaranteed to completely eliminate residual charges.
A first aspect of an embodiment of the present application provides a driving method for a display panel, where the display panel includes a boost chip and a data driving chip, and the driving method includes:
sampling the boost chip for multiple times to obtain a plurality of sampling voltages, and generating a voltage sampling curve according to the plurality of sampling voltages;
matching the voltage sampling curve with a preset voltage curve;
and if the matching is successful, clearing the data stored in the data driving chip.
In one embodiment, the sampling the boost chip multiple times to obtain a plurality of sampling voltages, and generating a voltage sampling curve according to the plurality of sampling voltages includes:
performing voltage sampling on the input end of the boost chip for multiple times, and generating the voltage sampling curve by using sampling voltages obtained by multiple continuous sampling;
the step of matching the voltage sampling curve with a preset voltage curve comprises the following steps:
and comparing the voltage sampling curve with a preset voltage curve, and if each sampling voltage on the voltage sampling curve is smaller than the voltage mean value of the preset voltage curve, judging that the matching is successful.
In one embodiment, the sampling the voltage at the input terminal of the boost chip a plurality of times and generating the voltage sampling curve from a plurality of sampled voltages obtained by consecutive sampling includes:
sampling voltage signals at the input end of the boost chip in a preset sampling period to obtain a plurality of periodic sampling signals;
determining the voltage sampling curve according to a plurality of the periodic sampling signals.
In one embodiment, said determining said voltage sampling profile from a plurality of said periodic sampling signals comprises:
and calculating the average voltage in the preset sampling period according to the plurality of periodic sampling signals, and generating the voltage sampling curve according to the average voltage.
In one embodiment, said determining said voltage sampling profile from a plurality of said periodic sampling signals comprises:
and calculating the plurality of periodic sampling signals according to a preset weighting coefficient to obtain weighted average voltage, and generating the voltage sampling curve according to the weighted average voltage.
In one embodiment, the matching the voltage sampling curve with a preset voltage curve further includes:
and if the voltage sampling curve is consistent with a preset voltage curve, judging that the matching is successful.
In one embodiment, the sampling the boost chip multiple times to obtain a plurality of sampling voltages, and generating a voltage sampling curve according to the plurality of sampling voltages includes:
sampling voltage signals at a plurality of output ends of the boost chip to obtain a plurality of voltage sampling curves;
the step of matching the voltage sampling curve with a preset voltage curve comprises the following steps:
and if the voltage sampling curve is consistent with the waveform of the preset voltage curve, judging that the matching is successful.
In one embodiment, the clearing the data stored in the data driving chip includes:
and resetting the data driving chip.
The embodiment of the present application further provides a driving apparatus for a display panel, the display panel includes a boost chip and a data driving chip, the driving apparatus includes:
the sampling unit is used for sampling the boost chip for multiple times to obtain a plurality of sampling voltages and generating a voltage sampling curve according to the plurality of sampling voltages;
the matching unit is used for matching the voltage sampling curve with a preset voltage curve;
and the resetting unit is used for clearing the data stored in the data driving chip when the matching is successful.
An embodiment of the present application further provides a display panel, including:
a boost chip;
a data driving chip; and
a control unit, wherein the control unit is configured to perform the driving method according to any one of the above.
The embodiment of the application provides a driving method and a driving device of a display panel and the display panel, wherein the display panel comprises a boosting chip and a data driving chip, a plurality of sampling voltages are obtained by sampling the boosting chip for a plurality of times, a voltage sampling curve is generated according to the plurality of sampling voltages, then the voltage sampling curve is matched with a preset voltage curve, if the matching is successful, data stored in the data driving chip is cleared, and therefore pixel data stored in the data driving chip is cleared when the boosting chip executes shutdown actions, an intelligent linkage framework is established between the boosting chip and the data driving chip, and black picture output during shutdown is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic flow chart of a driving method according to an embodiment of the present application;
fig. 2 is a schematic flowchart of step S10 of the driving method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of a sampling signal and an enable signal according to an embodiment of the present application;
fig. 4 is a schematic structural diagram of a driving device according to an embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The terms "comprises" and "comprising," and any variations thereof, in the description and claims of this application and the drawings described above, are intended to cover non-exclusive inclusions. For example, a process, method, or system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus. Furthermore, the terms "first," "second," and "third," etc. are used to distinguish between different objects and are not used to describe a particular order.
The embodiment of the present application provides a driving method of a display panel, the display panel includes a boost chip and a data driving chip, and referring to fig. 1, the driving method in the embodiment includes steps S10, S20, and S30.
In step S10, the boost chip is sampled a plurality of times to obtain a plurality of sampling voltages, and a voltage sampling curve is generated according to the plurality of sampling voltages.
In this embodiment, the boost chip is configured to output a scan signal to the gate line of each row of pixel units in the display panel, and the data driver chip is configured to output a data signal to the data line of each column of pixel units in the display panel, where a plurality of sampling voltages can be obtained by performing multiple voltage sampling on the boost chip, and a voltage sampling curve is generated from a plurality of consecutive sampling voltages.
In a specific application embodiment, the sampling point of the boost chip may be an input end or an output end of the boost chip, or the input end and the output end of the boost chip are sampled simultaneously.
In step S20, the voltage sampling curve is matched with a preset voltage curve.
In this embodiment, the voltage sampling curve is matched with a preset voltage curve, and whether the display panel needs to be shut down is determined according to a matching result, for example, if the preset voltage curve or a sudden drop trend, the voltage at the input end of the boost chip is reduced, or the voltages at the output ends of the boost chip are simultaneously reduced to 0V, it may be determined that the display panel is about to be shut down at this time.
In step S30, if the matching is successful, the data stored in the data driver chip is cleared.
In this embodiment, if the voltage sampling curve matches the preset voltage curve, it may be determined that the display panel is to be powered off by the output voltage of the boost chip, and at this time, by clearing the pixel data stored in the data driving chip, the voltages on the data lines in the display panel are all changed to low levels, and the display panel displays a black picture, thereby avoiding the difference of the power-off pictures caused by the difference of the display data due to the discharge difference.
In one embodiment, in step S10, the sampling the boost chip multiple times to obtain multiple sampling voltages, and generating a voltage sampling curve according to the multiple sampling voltages includes: and carrying out voltage sampling on the input end of the boost chip for multiple times, and generating the voltage sampling curve by using the sampling voltages obtained by multiple continuous sampling.
In step S20, matching the voltage sampling curve with a preset voltage curve includes: and comparing the voltage sampling curve with a preset voltage curve, and if each sampling voltage on the voltage sampling curve is smaller than the voltage mean value of the preset voltage curve, judging that the matching is successful.
In this embodiment, the voltage of the input end of the boost chip is sampled for a plurality of times, the voltage sampling curve is generated by a plurality of sampling voltages obtained by continuous sampling, the voltage monitoring of the input end of the boost chip is realized, then the voltage sampling curve is matched with the preset voltage curve, for example, the collected voltage sampling curve is compared with the preset voltage curve, if each sampling voltage on the voltage sampling curve is smaller than the voltage average value of the preset voltage curve, the matching is determined to be successful, at this time, the voltage of the input end of the boost chip is lower than the voltage average value of the preset voltage curve, the display panel can be determined to execute the shutdown action, the data in the data driving chip is cleared, the gray scales of all pixel units in the display panel are unified to be 0, the display frame is blackened, and thus the intelligent linkage is established between the boost chip and the data driving chip, the synchronous operation between the two chips is ensured, and the condition that shutdown pictures are inconsistent is avoided.
In a specific application embodiment, the boost chip is further configured to set the voltages at the plurality of output terminals to a high level when the plurality of sampling voltages collected at the input terminal of the boost chip are all smaller than the voltage average value of the preset voltage curve, so as to turn on the thin film transistors in the pixel units and release the residual charges of the liquid crystals in the pixel units as soon as possible.
In one embodiment, referring to fig. 2, in step S10, the step S11 and step S12 are included, wherein the step S10 is to perform multiple voltage samples on the input terminal of the boost chip, and generate the voltage sampling curve from multiple sampled voltages obtained by consecutive sampling.
In step S11, the voltage signal is sampled at the input terminal of the boost chip within a preset sampling period, and a plurality of periodic sampling signals are obtained.
In step S12, a voltage sampling curve is determined from the plurality of periodic sample signals.
In this embodiment, the voltage signal sampling performed on the input end of the boost chip may be performed according to a preset sampling period, and a plurality of periodic sampling signals may be obtained by sampling in each sampling period, at this time, the voltage sampling curve may be determined based on the plurality of periodic sampling signals.
For example, each periodic sampling signal corresponds to one periodic sampling voltage, an average value or a weighted value is performed on a plurality of periodic sampling voltages to obtain a voltage sampling curve, and further, the highest voltage value or the lowest voltage value among the plurality of periodic sampling voltages can be selected to form the voltage sampling curve.
Further, bit voltage values in the multiple periodic sampling voltages can be selected to form a voltage sampling curve.
In one embodiment, in step S12, determining a voltage sampling curve according to a plurality of periodic sampling signals specifically includes: and calculating the average voltage in the preset sampling period according to the plurality of periodic sampling signals, and generating the voltage sampling curve according to the average voltage.
In this embodiment, each periodic sampling signal corresponds to one periodic sampling voltage, an average voltage in each preset sampling period is obtained based on a plurality of periodic sampling voltages, and a voltage sampling curve is formed by the average voltage, so that an error in shutdown action judgment caused by voltage fluctuation in the sampling period can be avoided.
In one embodiment, in step S12, determining a voltage sampling curve according to a plurality of periodic sampling signals specifically includes: and calculating the plurality of periodic sampling signals according to a preset weighting coefficient to obtain weighted average voltage, and generating the voltage sampling curve according to the weighted average voltage.
In this embodiment, the reference weights of the voltages at different time points in each sampling period are different, the weighted average voltage is obtained by performing weighted calculation on the sampled voltages in a plurality of periods according to a preset weighting coefficient, and the weighted average voltage forms a voltage sampling curve. For example, if 3 samples are collected in each sampling period, the periodic sampling voltages are V1, V2, and V3, respectively, and the weighting coefficients thereof may be (0.2, 0.3, 0.5), and the weighted average voltage V is 0.2 × V1+0.3 × V2+0.5 × V3.
Further, the weighting factor may be in positive correlation with the detection time interval in each sampling period, for example, if each sampling period is 10us, the first detection time interval is 2us, the second detection time interval is 3us, and the third detection time interval is 5us, the weighting factor in the sampling period may be (0.2, 0.3, 0.5), and so on.
In one embodiment, matching the voltage sampling curve with a preset voltage curve further comprises: and if the voltage sampling curve is consistent with a preset voltage curve, judging that the matching is successful.
In this embodiment, a voltage curve formed by sampling signals in a plurality of periods within one sampling period is compared with a preset voltage curve, and if the two voltage curves are the same, it can be determined that the matching is successful.
In one embodiment, in step S10, sampling the boost chip multiple times to obtain multiple sampling voltages, and generating a voltage sampling curve according to the multiple sampling voltages may be implemented as follows: and sampling voltage signals at a plurality of output ends of the boost chip to obtain a voltage sampling curve.
In step S20, the voltage sampling curve is matched with the preset voltage curve, which may be implemented as follows: and if the voltage sampling curve is consistent with the waveform of the preset voltage curve, judging that the matching is successful.
Specifically, the voltage curve of the periodic sampling signal is the same as the preset voltage curve, which may include the same voltage trend, for example, if the voltages of the periodic sampling signals gradually decrease in the sampling period, it is determined that the matching is successful.
In this embodiment, the voltage sampling curve is obtained by sampling the voltage at the plurality of output ends of the boost chip, and if the voltage sampling curve is consistent with the waveform of the preset voltage curve, the matching is judged to be successful, and it can be determined that the display panel is to be shut down.
Specifically, the boost chip outputs a plurality of scanning signals through a plurality of output ends of the boost chip, voltage sampling is carried out on the plurality of scanning signals output by the boost chip, if the voltage values of the plurality of scanning signals output by the boost chip are all 0V, it can be determined that the display panel is about to be shut down, at the moment, all voltages on data lines in the display panel are changed into low levels through clearing pixel data stored in the data driving chip, and the display panel displays black pictures.
In one embodiment, clearing the data stored in the data driving chip includes: and resetting the data driving chip.
In this embodiment, the data stored in the data driving chip can be cleared by performing a reset operation on the data driving chip, and at this time, the voltages on the data lines in the display panel are all changed to a low level, so that the display panel displays a black picture.
Specifically, resetting the data driving chip may be performed by sending an enable control signal to the data driving chip.
Specifically, referring to fig. 3, 301 is a voltage sampling signal at an input end of a boost chip, 311, 31n are voltage sampling signals at a plurality of output ends of the boost chip, n is a positive integer greater than or equal to 2, 320 is an enable control signal, 401 is normal pixel data of a data driving chip, and 402 is data after data of the data driving chip is cleared.
Further, in this embodiment, the boost chip detects the voltage sampling signal 301 at the input end thereof, as shown in fig. 3, when the display panel is turned off, the voltage at the input end of the boost chip gradually decreases, and when the voltage value of the voltage sampling signal 301 at the input end is smaller than the voltage value of the preset voltage curve 501, the boost chip sets all the levels of the voltage signals 311 and 31n at the plurality of output ends thereof to high levels, so as to release the liquid crystal residual charges of the pixel units in the display panel as soon as possible, and simultaneously sends the enable control signal to the data driving chip to perform the reset operation on the data driving chip, thereby implementing the shutdown linkage between the boost chip and the data driving chip, ensuring the release of the residual charges of the display panel, and avoiding the occurrence of shutdown ghost.
The embodiment of the application also provides a driving device of the display panel, the display panel comprises a boosting chip and a data driving chip, and the driving device comprises a sampling unit, a matching unit and a resetting unit.
Specifically, the sampling unit is configured to perform multiple sampling on the boost chip to obtain multiple sampling voltages, and generate a voltage sampling curve according to the multiple sampling voltages; the matching unit is used for matching the voltage sampling curve with a preset voltage curve; the reset unit is used for clearing the data stored in the data driving chip when the matching is successful.
In this embodiment, the boost chip is configured to output a scan signal to a gate line of each row of pixel units in the display panel, the data driver chip is configured to output a data signal to a data line of each column of pixel units in the display panel, and a voltage sampling curve of the boost chip is obtained by performing signal sampling on the boost chip, where a sampling point of the boost chip may be an input end or an output end of the boost chip, or the input end and the output end of the boost chip are sampled simultaneously.
And matching the voltage sampling curve with a preset voltage curve, and judging whether the display panel needs to be shut down according to a matching result, for example, if the voltage of the input end of the boost chip is reduced, or the voltages of a plurality of output ends of the boost chip are simultaneously reduced to 0V, it can be determined that the display panel is about to be shut down at the moment.
If the voltage sampling curve is matched with the preset voltage curve, the display panel can be determined to be shut down, at the moment, the pixel data stored in the data driving chip are cleared, the voltage on the data line in the display panel is completely changed into low level, the display panel displays black pictures, and therefore the difference of shutdown pictures caused by different display data due to discharge difference is avoided.
In one embodiment, referring to fig. 4, the boost chip 30 is provided with a detection module 31, the detection module 31 may integrate a sampling unit and a matching unit, the data driving chip 40 is provided with a reset unit 41 and a register unit 42, the reset unit 41 is connected to the detection module 31, when the display panel is turned off, the power is turned off, the voltage at the input terminal of the boost chip 30 drops, and at this time, the detection module 31 detects the voltage at the input terminal, when the voltage at the input terminal is less than the preset input threshold, the boost chip 30 sets the voltage at the output terminal thereof to a high level, to discharge the residual charges in the pixel unit, while sending an enable control signal of a high level to the reset unit 41 within the data driving chip 40, the pixel data stored in the register unit 42 is cleared, and the display image is a black image, so that the occurrence of shutdown ghost is avoided.
In a specific application embodiment, the preset input threshold may be a voltage value on a preset voltage curve.
An embodiment of the present application further provides a display panel, including: a boost chip; a data driving chip; and a control unit, wherein the control unit is configured to perform the driving method according to any one of the above.
The embodiment of the application provides a driving method and a driving device of a display panel and the display panel, wherein the display panel comprises a boosting chip and a data driving chip, a plurality of sampling voltages are obtained by sampling the boosting chip for a plurality of times, a voltage sampling curve is generated according to the plurality of sampling voltages, then the voltage sampling curve is matched with a preset voltage curve, if the matching is successful, data stored in the data driving chip is cleared, and therefore pixel data stored in the data driving chip is cleared when the boosting chip executes shutdown actions, an intelligent linkage framework is established between the boosting chip and the data driving chip, and black picture output during shutdown is guaranteed.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus/servo system and method can be implemented in other ways. For example, the above-described embodiments of the apparatus/servo system are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow in the method of the embodiments described above can be realized by a computer program, which can be stored in a computer-readable storage medium and can realize the steps of the embodiments of the methods described above when the computer program is executed by a processor. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.
Claims (10)
1. A driving method of a display panel, wherein the display panel comprises a boost chip and a data driving chip, the driving method comprising:
the boost chip is subjected to multiple sampling to obtain multiple sampling voltages, and a voltage sampling curve is generated according to the multiple sampling voltages, wherein the multiple sampling of the boost chip comprises the sampling of the input end of the boost chip and the multiple output ends of the boost chip;
matching the voltage sampling curve with a preset voltage curve;
if the matching is successful, clearing the data stored in the data driving chip;
the boost chip is further used for setting the voltages of the output ends of the boost chip to be high levels when the sampling voltages collected by the input end of the boost chip are all smaller than the voltage mean value of the preset voltage curve, and the boost chip is used for turning on the thin film transistors in the pixel units and releasing the residual charges of the liquid crystal in the pixel units.
2. The driving method according to claim 1, wherein the sampling the boost chip a plurality of times to obtain a plurality of sampling voltages, and generating a voltage sampling curve according to the plurality of sampling voltages comprises:
performing voltage sampling on the input end of the boost chip for multiple times, and generating the voltage sampling curve by using sampling voltages obtained by multiple continuous sampling;
the step of matching the voltage sampling curve with a preset voltage curve comprises the following steps:
and comparing the voltage sampling curve with a preset voltage curve, and if each sampling voltage on the voltage sampling curve is smaller than the voltage mean value of the preset voltage curve, judging that the matching is successful.
3. The driving method according to claim 2, wherein the step of sampling the voltage at the input terminal of the boost chip a plurality of times and generating the voltage sampling curve from a plurality of sampled voltages obtained by successive sampling comprises:
sampling voltage signals at the input end of the boost chip in a preset sampling period to obtain a plurality of periodic sampling signals;
determining the voltage sampling curve according to a plurality of the periodic sampling signals.
4. The driving method of claim 3, wherein said determining the voltage sampling curve from a plurality of the periodic sampling signals comprises:
and calculating the average voltage in the preset sampling period according to the plurality of periodic sampling signals, and generating the voltage sampling curve according to the average voltage.
5. The driving method of claim 3, wherein said determining the voltage sampling curve from a plurality of the periodic sampling signals comprises:
and calculating the plurality of periodic sampling signals according to a preset weighting coefficient to obtain weighted average voltage, and generating the voltage sampling curve according to the weighted average voltage.
6. The driving method of claim 2, wherein the matching the voltage sampling curve with a preset voltage curve, further comprises:
and if the voltage sampling curve is consistent with a preset voltage curve, judging that the matching is successful.
7. The driving method of claim 6, wherein the matching the voltage sampling curve with a preset voltage curve, further comprises:
and if the voltage sampling curve is consistent with the waveform of the preset voltage curve, judging that the matching is successful.
8. The driving method according to claim 1, wherein the clearing the data stored in the data driving chip comprises:
and resetting the data driving chip.
9. A driving apparatus of a display panel, the display panel including a boost chip and a data driving chip, the driving apparatus comprising:
the sampling unit is used for sampling the boost chip for multiple times to obtain a plurality of sampling voltages and generating a voltage sampling curve according to the plurality of sampling voltages, wherein the sampling the boost chip for multiple times comprises sampling the input end of the boost chip and/or a plurality of output ends of the boost chip;
the matching unit is used for matching the voltage sampling curve with a preset voltage curve;
the reset unit is used for resetting the data stored in the data driving chip when the matching is successful; the boost chip is further used for setting the voltages of the output ends of the boost chip to be high levels when the sampling voltages collected by the input end of the boost chip are all smaller than the voltage mean value of the preset voltage curve, and the boost chip is used for turning on the thin film transistors in the pixel units and releasing the residual charges of the liquid crystal in the pixel units.
10. A display panel, comprising:
a boost chip;
a data driving chip; and
control unit, wherein the control unit is adapted to perform the driving method according to any of claims 1-8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598251.4A CN113314084B (en) | 2021-05-31 | 2021-05-31 | Display panel driving method and device and display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110598251.4A CN113314084B (en) | 2021-05-31 | 2021-05-31 | Display panel driving method and device and display panel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113314084A CN113314084A (en) | 2021-08-27 |
| CN113314084B true CN113314084B (en) | 2022-03-22 |
Family
ID=77376256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110598251.4A Active CN113314084B (en) | 2021-05-31 | 2021-05-31 | Display panel driving method and device and display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113314084B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694743A (en) * | 2009-08-25 | 2010-04-14 | 北京世纪高通科技有限公司 | Method and device for predicting road conditions |
| CN109346022A (en) * | 2018-12-11 | 2019-02-15 | 惠科股份有限公司 | Protection method of display panel, display panel and computer readable storage medium |
| CN109616069A (en) * | 2019-01-14 | 2019-04-12 | 合肥京东方光电科技有限公司 | Input voltage processing method, device, display base plate and display device |
| CN109633246A (en) * | 2018-12-11 | 2019-04-16 | 北京汇能精电科技股份有限公司 | Alternating current power failure detection method, apparatus and system |
| CN109859703A (en) * | 2019-01-08 | 2019-06-07 | 合肥鑫晟光电科技有限公司 | Display control unit, display control method and display equipment |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2667188A1 (en) * | 1990-09-21 | 1992-03-27 | Senn Patrice | SAMPLE-LOCKER CIRCUIT FOR LIQUID CRYSTAL DISPLAY SCREEN. |
| JPWO2015063988A1 (en) * | 2013-10-30 | 2017-03-09 | 株式会社Ｊｏｌｅｄ | Display device power-off method and display device |
| KR20200042989A (en) * | 2018-10-16 | 2020-04-27 | 삼성디스플레이 주식회사 | Scan driving device and display device having the same |
| CN110780131A (en) * | 2019-10-22 | 2020-02-11 | 王群乐 | Monitoring system for recording start-up and shut-down states of refrigerator |
-
2021
- 2021-05-31 CN CN202110598251.4A patent/CN113314084B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101694743A (en) * | 2009-08-25 | 2010-04-14 | 北京世纪高通科技有限公司 | Method and device for predicting road conditions |
| CN109346022A (en) * | 2018-12-11 | 2019-02-15 | 惠科股份有限公司 | Protection method of display panel, display panel and computer readable storage medium |
| CN109633246A (en) * | 2018-12-11 | 2019-04-16 | 北京汇能精电科技股份有限公司 | Alternating current power failure detection method, apparatus and system |
| CN109859703A (en) * | 2019-01-08 | 2019-06-07 | 合肥鑫晟光电科技有限公司 | Display control unit, display control method and display equipment |
| CN109616069A (en) * | 2019-01-14 | 2019-04-12 | 合肥京东方光电科技有限公司 | Input voltage processing method, device, display base plate and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113314084A (en) | 2021-08-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108447450B (en) | Gate drive circuit, display device and drive method | |
| CN100511403C (en) | Liquid crystal display device and method for driving same | |
| JP2002215120A (en) | Liquid crystal display device with flicker reduced and flicker reduction method | |
| CN102270433B (en) | Device and method for improving dim-line or dim-block phenomenon of liquid crystal display | |
| CN102376279B (en) | Liquid crystal display device and driving method thereof | |
| CN101540149A (en) | Device for eliminating shutdown shadow and method thereof | |
| CN100582903C (en) | Liquid crystal display apparatus and drive circuit as well as drive method | |
| CN101859039B (en) | Touch detection method and flat panel display with embedded type touch panel | |
| EP1527435A1 (en) | Method and circuit for driving a liquid crystal display | |
| CN113314084B (en) | Display panel driving method and device and display panel | |
| US10152933B2 (en) | Driving method and system for liquid crystal display | |
| CN104978942B (en) | Drive circuit, driving method and display device | |
| CN114299843B (en) | Driving method and driving device of display panel and display device | |
| US20210358444A1 (en) | Drive adjusting circuit and adjusting method, display device | |
| CN112216242B (en) | Data driving circuit and display device | |
| CN111968594B (en) | Display driving method, display driving system and display device | |
| CN107479750B (en) | Touch display device and control method thereof | |
| EP3951568A1 (en) | Driving method for touch display panel, and touch display apparatus | |
| CN101593494B (en) | Liquid crystal display (LCD) and driving method thereof | |
| JPH08304763A (en) | Display driving device | |
| CN101025484A (en) | Data processing device, method of driving the same and display device having the same | |
| CN113920952B (en) | Electronic paper debugging method, electronic paper, debugging system and equipment | |
| CN115578981A (en) | Electronic paper driving method for automatically removing fast-brushing residual shadow | |
| CN109872698B (en) | Common electrode discharge circuit, source electrode drive circuit and common electrode discharge method | |
| CN107193147B (en) | Touch display panel, display method thereof 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 |