CN112331123A - Sequential signal control method and device of GOA driving unit - Google Patents
Sequential signal control method and device of GOA driving unit Download PDFInfo
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- CN112331123A CN112331123A CN202011298705.8A CN202011298705A CN112331123A CN 112331123 A CN112331123 A CN 112331123A CN 202011298705 A CN202011298705 A CN 202011298705A CN 112331123 A CN112331123 A CN 112331123A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
- G09G3/2074—Display of intermediate tones using sub-pixels
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Abstract
The application provides a time sequence signal control method and a time sequence signal control device of a GOA driving unit, wherein the method comprises the following steps: acquiring a display state of a display panel, wherein the display state is a display maintaining state or a display updating state; when the display panel is in a display updating state, setting the frequency of a time sequence signal output to the GOA driving unit as a first frequency so as to control the scanning frequency of the display panel as the first scanning frequency; when the display panel is in a display maintaining state, the frequency of the time sequence signal output to the GOA driving unit is reduced to a second frequency so as to control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
Description
Technical Field
The present application relates to the field of control technologies, and in particular, to a method and an apparatus for controlling a timing signal of a GOA driving unit.
Background
When the current display panel performs frame updating, the control chip sends the timing signal to the GOA driving unit, so that the GOA driving unit drives the display area of the display panel to perform frame updating and frame displaying.
On the basis of the above problem, in order to solve the problem, the current method is to not process the timing signal after the completion of the frame update, so that the timing signal maintains the same frequency as that during the frame update to continuously output the timing signal and further to keep the frame displayed normally, but such a way causes a larger electric quantity loss of the display panel.
Disclosure of Invention
An object of the present invention is to provide a method and an apparatus for controlling a timing signal of a GOA driving unit, so as to solve the problem that after a frame is updated, the timing signal is not processed, so that the frame maintains the same frequency as that during the frame updating to continuously output the frame, and further the frame keeps normal display, so that the display panel has a large power consumption.
In a first aspect, the present invention provides a method for controlling a timing signal of a GOA driving unit, including: acquiring a display state of a display panel, wherein the display state is a display maintaining state or a display updating state; when the display panel is in a display updating state, setting the frequency of a time sequence signal output to the GOA driving unit as a first frequency so as to control the scanning frequency of the display panel as a first scanning frequency; when the display panel is in a display maintaining state, reducing the frequency of a time sequence signal output to the GOA driving unit to a second frequency so as to control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
In the time sequence signal control method of the GOA driving unit designed above, when the display panel is in the display maintaining state, the frequency of the time sequence signal output to the GOA driving unit is turned down to the first frequency to further control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency, so that the second scanning frequency is smaller than the first scanning frequency when the display panel performs display updating, on the basis that the second scanning frequency is smaller than the first scanning frequency, so that when the frame is maintained, the GOA driving unit does not control the switch in the sub-pixel to be closed as frequently as when the frame is updated to further frequently charge and display the capacitor, but reduces the first frequency of the time sequence signal to the second frequency to further reduce the first scanning frequency to the second scanning frequency, further increases the time interval for charging the capacitor in the sub-pixel, so that the time interval for keeping the electric energy stored in the capacitor as much as possible after the electric energy is basically released is completely charged to the capacitor, therefore, the problem that the time sequence signal is not processed after the picture is updated, so that the time sequence signal is continuously output at the same frequency as the time of picture updating, the picture is normally displayed, and the display panel has large power consumption is solved, and the power consumption of the display panel is saved.
In an optional implementation manner of the first aspect, before the adjusting down the frequency of the timing signal output to the GOA driving unit to the second frequency, the method further includes: acquiring the discharge time of internal capacitors of sub-pixels in the display panel, wherein the display panel comprises a plurality of sub-pixels, each sub-pixel comprises an internal capacitor, and the discharge time of the internal capacitors of the sub-pixels is the same; and determining a second frequency of the time sequence signal output to the GOA driving unit according to the discharge duration of the internal capacitor of the sub-pixel in the display panel.
In an optional implementation manner of the first aspect, the obtaining a discharge time period of an internal capacitance of a subpixel in the display panel includes: acquiring parameter information of internal capacitance of a sub-pixel in the display panel; and determining the discharge time of the internal capacitance of the sub-pixel in the display panel according to the parameter information of the internal capacitance of the sub-pixel in the display panel.
In a second aspect, the present invention provides a method for controlling a timing signal of a GOA driving unit, which is applied to a control chip in a display panel, where the display panel includes a plurality of GOA driving units and a plurality of display areas, the control chip is electrically connected to each GOA driving unit, and each display area is driven by at least one GOA driving unit connected to the control chip to display, and the method includes: acquiring a display state of each display area in the display panel, wherein the display state is a display maintaining state or a display updating state; setting the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display updating state as a first frequency so as to control the scanning frequency of the corresponding display area as the first scanning frequency; the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display maintaining state is reduced to a second frequency so as to control the scanning frequency of the corresponding display area to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
In the time sequence signal control method of the GOA driving unit designed above, by obtaining the display state of each display area in the display panel, and further turning down the frequency of the time sequence signal output to the GOA driving unit connected to the display area in the display maintaining state to the second frequency, and further controlling the scanning frequency of the corresponding display area to be correspondingly reduced to the second scanning frequency, so that the second scanning frequency is smaller than the first scanning frequency when the display area is updated, and on the basis that the second scanning frequency is smaller than the first scanning frequency, when the frame is maintained, the GOA driving unit does not close the switch of the sub-pixel in the corresponding display area as frequently as when the frame is updated to further frequently charge and display the capacitor, but reduces the first frequency of the time sequence signal to the second frequency to further reduce the first scanning frequency to the second scanning frequency, and then increase the time interval that charges to the electric capacity in the subpixel, make it keep charging for the electric capacity again after the electric energy that stores in the electric capacity basically releases to the greatest extent, like this, solved and not dealt with the time sequence signal after the picture is upgraded, make it keep with picture when upgrading the same frequency to continue outputting and then make the picture keep normal display and make the display panel have the problem of great electric quantity loss, practiced thrift the power consumption loss of display panel.
In an optional implementation manner of the second aspect, after the frequency of the timing signal output to the GOA driving unit connected to the display area in the display maintaining state is turned down to the second frequency, the method further includes: acquiring display updating information, and determining at least one display area to be updated according to the display updating information; judging whether a display area currently in a display maintaining state exists in the at least one display area to be updated; if the GOA driving unit exists, the frequency of the time sequence signal output to the GOA driving unit corresponding to the display area to be updated and currently in the display maintaining state is adjusted to be higher than the first frequency.
In an optional implementation manner of the second aspect, the obtaining display update information and determining at least one display area to be updated according to the display update information includes: collecting display data information corresponding to each display area; judging whether display data information corresponding to each display area changes; and if so, determining the display area with changed display data information as the display area to be updated.
In a third aspect, the present invention provides an apparatus for controlling a timing signal of a GOA driving unit, the apparatus comprising: the display control device comprises a first acquisition module, a second acquisition module and a display control module, wherein the first acquisition module is used for acquiring the display state of a display panel, and the display state is a display maintaining state or a display updating state; the first setting module is used for setting the frequency of a time sequence signal output to the GOA driving unit to be a first frequency when the display panel is in a display updating state so as to control the scanning frequency of the display panel to be the first scanning frequency; the first adjusting module is used for adjusting the frequency of the time sequence signal output to the GOA driving unit to be a second frequency when the display panel is in a display maintaining state so as to control the scanning frequency of the display panel to be correspondingly reduced to be the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
In the above-designed timing signal control device of the GOA driving unit, when the display panel is in the display maintaining state, the frequency of the timing signal output to the GOA driving unit is reduced to the first frequency to control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency, so that the second scanning frequency is smaller than the first scanning frequency when the display panel performs display updating, and on the basis that the second scanning frequency is smaller than the first scanning frequency, when the frame is maintained, the GOA driving unit does not control the switch in the sub-pixel to be closed as frequently as when the frame is updated to perform charging display on the capacitor frequently, but reduces the first frequency of the timing signal to the second frequency to reduce the first scanning frequency to the second scanning frequency, so as to increase the time interval for charging the capacitor in the sub-pixel, so that the time interval for keeping the electric energy stored in the capacitor as much as possible after the electric energy is basically released is completely charged on the capacitor, therefore, the problem that the time sequence signal is not processed after the picture is updated, so that the time sequence signal is continuously output at the same frequency as the time of picture updating, the picture is normally displayed, and the display panel has large power consumption is solved, and the power consumption of the display panel is saved.
In an optional implementation manner of the third aspect, the first obtaining module is further configured to obtain a discharge time period of an internal capacitor of a subpixel in the display panel, where the display panel includes a plurality of subpixels, each subpixel includes an internal capacitor, and the discharge time periods of the internal capacitors of the subpixels are the same; and the first determining module is used for determining a second frequency of the time sequence signal output to the GOA driving unit according to the discharge duration of the internal capacitor of the sub-pixel in the display panel.
In an optional implementation manner of the third aspect, the first obtaining module is specifically configured to obtain parameter information of an internal capacitance of a sub-pixel in the display panel; and determining the discharge time of the internal capacitance of the sub-pixel in the display panel according to the parameter information of the internal capacitance of the sub-pixel in the display panel.
In a fourth aspect, the present invention provides a timing signal control apparatus for a GOA driving unit, which is applied to a control chip in a display panel, where the display panel includes a plurality of GOA driving units and a plurality of display areas, the control chip is electrically connected to each GOA driving unit, and each display area is driven by at least one GOA driving unit connected to the control chip to display, and the apparatus includes: the second acquisition module is used for acquiring the display state of each display area in the display panel, wherein the display state is a display maintaining state or a display updating state; the second setting module is used for setting the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display updating state as a first frequency so as to control the scanning frequency of the corresponding display area as the first scanning frequency; the second adjusting module is used for reducing the frequency of the time sequence signal output to the GOA driving unit connected with the display area in the display maintaining state to a second frequency so as to control the scanning frequency of the corresponding display area to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
In the time sequence signal control device of the GOA driving unit designed above, by obtaining the display state of each display area in the display panel, and further turning down the frequency of the time sequence signal output to the GOA driving unit connected to the display area in the display maintaining state to the second frequency, and further controlling the scanning frequency of the corresponding display area to correspondingly decrease to the second scanning frequency, so that the second scanning frequency is smaller than the first scanning frequency when the display area is updated, and on the basis that the second scanning frequency is smaller than the first scanning frequency, when the frame is maintained, the GOA driving unit does not close the switch of the sub-pixel in the corresponding display area as frequently as when the frame is updated and further frequently charges and displays the capacitor, but decreases the first frequency of the time sequence signal to the second frequency and further decreases the first scanning frequency to the second scanning frequency, and then increase the time interval that charges to the electric capacity in the subpixel, make it keep charging for the electric capacity again after the electric energy that stores in the electric capacity basically releases to the greatest extent, like this, solved and not dealt with the time sequence signal after the picture is upgraded, make it keep with picture when upgrading the same frequency to continue outputting and then make the picture keep normal display and make the display panel have the problem of great electric quantity loss, practiced thrift the power consumption loss of display panel.
In an optional implementation manner of the fourth aspect, the second obtaining module is further configured to obtain display update information; the second determining module is used for determining at least one display area to be updated according to the display updating information; the judging module is used for judging whether a display area currently in a display maintaining state exists in the at least one display area to be updated; the second adjusting module is further configured to increase the frequency of the timing signal output to the GOA driving unit corresponding to the display area to be updated and currently in the display maintaining state to the first frequency.
In an optional implementation manner of the fourth aspect, the second determining module is specifically configured to acquire display data information corresponding to each display area; judging whether display data information corresponding to each display area changes; and if so, determining the display area with changed display data information as the display area to be updated.
In a fifth aspect, an embodiment provides an electronic device, including a memory and a processor, where the memory stores a computer program, and the processor executes the computer program to perform the method in the first aspect, any optional implementation manner of the first aspect, or any optional implementation manner of the second aspect.
In a sixth aspect, embodiments provide a storage medium having a computer program stored thereon, where the computer program is executed by a processor to perform the method in the first aspect, any optional implementation manner of the first aspect, or any optional implementation manner of the second aspect.
In a seventh aspect, an embodiment provides a computer program product, which when run on a computer, causes the computer to execute the method in any optional implementation manner of the first aspect or any optional implementation manner of the second aspect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and that those skilled in the art can also obtain other related drawings based on the drawings without inventive efforts.
Fig. 1 is a first flowchart of a timing signal control method of a GOA driving unit according to a first embodiment of the present disclosure;
fig. 2 is a second flowchart of a timing signal control method of a GOA driving unit according to the first embodiment of the present disclosure;
fig. 3 is a third flowchart of a timing signal control method of a GOA driving unit according to the first embodiment of the present disclosure;
fig. 4 is a schematic structural diagram of a timing signal control apparatus of a GOA driving unit according to a first embodiment of the present disclosure;
fig. 5 is a first flowchart of a timing signal control method of a GOA driving unit according to a second embodiment of the present disclosure;
fig. 6 is a second flowchart of a timing signal control method of a GOA driving unit according to a second embodiment of the present disclosure;
fig. 7 is a schematic structural diagram of a timing signal control device of a GOA driving unit according to a second embodiment of the present disclosure;
fig. 8 is a schematic structural diagram of an electronic device according to a third embodiment of the present application.
Icon: 100-a first acquisition module; 101-a first setup module; 102-a first conditioning module; 103-a first determination module; 200-a second acquisition module; 201-a second setup module; 202-a second adjustment module; 203-a second determination module; 204-a judging module; 3-an electronic device; 301-a processor; 302-a memory; 303-communication bus.
Detailed Description
The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application.
First embodiment
The embodiment of the present application provides a method for controlling a timing signal of a GOA driving unit, which can be applied to a control chip in a display panel, for example, a scan driving chip, and the like, as shown in fig. 1, the method specifically includes the following steps:
step S100: and acquiring the display state of the display panel, wherein the display state is a display maintaining state or a display updating state.
Step S102: when the display panel is in a display update state, the frequency of the timing signal output to the GOA driving unit is set to a first frequency to control the scanning frequency of the display panel to be the first scanning frequency.
Step S104: when the display panel is in a display maintaining state, the frequency of the time sequence signal output to the GOA driving unit is reduced to a second frequency so as to control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
In step S100, the control chip obtains a display state of the display panel, where the display state is a display maintaining state or a display updating state, the display maintaining state refers to a state where a whole image displayed by the display panel needs to be maintained currently, and the display updating state refers to a state where an image displayed by the display panel needs to be updated currently, where obtaining the display state of the display panel specifically can preset a time interval of panel updating in the control chip, for example, one time of image updating can be performed in 1 minute, and if the current time point is exactly 11:00, the image updating needs to be performed to indicate the image updating state, and a time period between 11:00 and 11:01 needs to maintain the image displayed, which indicates the image maintaining state; in addition, the display state can also be determined by collecting the data information output by the data driving chip, and the display state is determined as the picture updating state when the data information output by the data driving chip changes, and the picture maintaining state when the data information output by the data driving chip does not change.
After the display state of the display panel is acquired in step S100, when it is determined that the display panel is in the display update state, step S102 is executed to set the frequency of the timing signal output to the GOA driving unit to the first frequency so as to control the scanning frequency of the display panel to be the first scanning frequency.
It should be noted that, in this embodiment, when there is only one GOA driving unit, the control chip is electrically connected to the GOA driving unit, and directly outputs the generated first frequency signal to the GOA driving unit, so that the scanning line connected to the GOA driving unit scans according to the first scanning frequency to sequentially control the switches inside the sub-pixels connected to the scanning line to be turned on, and further charge the capacitors inside the sub-pixels to display the sub-pixels; when the plurality of GOA driving units are provided, the timing signals of the first frequency output by the control chip are all received by the plurality of GOA driving units, for example, the plurality of GOA driving units are connected in parallel to the timing signal transmission line and are electrically connected with the control chip through the timing signal transmission line, so that the plurality of GOA driving units can receive the timing signals output by the control chip, and further the scanning line connected with each GOA driving unit scans according to the first scanning frequency, and further the switch inside the sub-pixel connected with the scanning line is sequentially controlled to be opened, and further the capacitor inside the sub-pixel is charged, so that the sub-pixel is displayed.
After the display state of the display panel is obtained in step S100, when it is determined that the display panel is in the display maintaining state, the frequency of the timing signal output to the GOA driving unit is adjusted to be the second frequency, so as to control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency.
In step S104, when the display is maintained, the control chip reduces the frequency of the timing signal output to the GOA driving unit to a second frequency, so as to correspondingly reduce the scanning frequency of the display panel to the second scanning frequency, and on the basis that the second scanning frequency is less than the first scanning frequency, when the picture is maintained, the GOA driving unit does not control the switch in the sub-pixel to be closed as frequently as when the picture is updated, so as to frequently charge and display the capacitor, but reduces the first frequency of the timing signal to the second frequency, so as to reduce the first scanning frequency to the second scanning frequency, so as to increase the time interval for charging the capacitor in the sub-pixel, so as to enable the capacitor to be charged after the electric energy stored in the capacitor is basically released to the greatest extent, thus solving the problem that the timing signal is not processed after the picture is updated, the display panel can continuously output the images by maintaining the same frequency as the images during updating, so that the images can be normally displayed, the display panel has the problem of large electric quantity loss, and the electric consumption loss of the display panel is saved.
In an alternative implementation manner of this embodiment, before performing step S104 to adjust the frequency of the timing signal output to the GOA driving unit to the second frequency, as shown in fig. 2, the method further includes:
step S1030: and acquiring the discharge time of the internal capacitance of the sub-pixel in the display panel.
Step S1031: and determining a second frequency of the time sequence signal output to the GOA driving unit according to the discharge duration of the content capacitor of the sub-pixel in the display panel.
In step S1030, a plurality of sub-pixels are connected to a scan line in the display panel, in this embodiment, the discharge time duration of each sub-pixel in the display panel is the same, and the discharge time durations of the plurality of sub-pixels may be calculated in advance according to parameter information of capacitances in the sub-pixels and stored, and then directly called when step S1030 is executed, as shown in fig. 3, the discharge time durations may also be calculated in real time through the following steps:
step S10300: and acquiring parameter information of internal capacitance of sub-pixels in the display panel.
Step S10301: and determining the discharge time of the sub-pixel in the display panel according to the parameter information of the internal capacitance of the sub-pixel in the display panel.
The above steps may adopt an existing method for calculating the discharge time of the capacitor, and specifically, parameter information of the capacitor, such as a capacitance value, a resistance value, an initial voltage (external voltage when the capacitor is not charged) and voltages at two ends of the capacitor at a current time point, may be obtained, and further, the discharge time may be calculated.
After the discharge time of the internal capacitor of the sub-pixel is obtained through the calculation in the above steps, the second frequency of the timing signal output to the GOA driving unit can be determined according to the discharge time of the sub-pixel, so that the second scanning frequency of the display panel can be controlled to be approximately synchronous with the corresponding discharge time, that is, the discharge time of the internal capacitor of the sub-pixel is close to the scanning time interval corresponding to the second scanning frequency.
Fig. 4 shows a schematic structural block diagram of a timing signal control apparatus of a GOA driving unit provided in this embodiment, and it should be understood that the apparatus corresponds to the above-mentioned method embodiment executed by the control chip in fig. 1 to 3, and can execute the steps related to the method executed by the control chip in the foregoing embodiments, and the specific functions of the apparatus can be referred to the description above, and a detailed description is appropriately omitted here to avoid redundancy. The device includes at least one software function that can be stored in memory in the form of software or firmware (firmware) or solidified in the Operating System (OS) of the device. Specifically, the apparatus includes: a first obtaining module 100, configured to obtain a display state of a display panel, where the display state is a display maintaining state or a display updating state; a first setting module 101, configured to set a frequency of a timing signal output to the GOA driving unit to a first frequency when the display panel is in a display update state, so as to control a scanning frequency of the display panel to be the first scanning frequency; the first adjusting module 102 is configured to, when the display panel is in a display maintaining state, adjust a frequency of the timing signal output to the GOA driving unit to a second frequency, so as to control a scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
In the above-designed timing signal control device of the GOA driving unit, when the display panel is in the display maintaining state, the frequency of the timing signal output to the GOA driving unit is adjusted to the first frequency to control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency, so that the second scanning frequency is smaller than the first scanning frequency when the display panel performs display updating, and on the basis that the second scanning frequency is smaller than the first scanning frequency, when the frame is maintained, the GOA driving unit does not control the switch in the sub-pixel to be closed as frequently as when the frame is updated to perform charging display on the capacitor frequently, but reduces the first frequency of the timing signal to the second frequency to reduce the first scanning frequency to the second scanning frequency, so as to increase the time interval for charging the capacitor in the sub-pixel, so that the capacitor is charged after the electric energy stored in the capacitor is basically released as much as possible, therefore, the problem that the time sequence signal is not processed after the picture is updated, so that the time sequence signal is continuously output at the same frequency as the time of picture updating, the picture is normally displayed, and the display panel has large power consumption is solved, and the power consumption of the display panel is saved.
In an optional implementation manner of this embodiment, the first obtaining module 100 is further configured to obtain a discharge time period of an internal capacitor of a sub-pixel in the display panel, where the display panel includes a plurality of sub-pixels, each sub-pixel includes an internal capacitor, and the discharge time periods of the internal capacitors of the sub-pixels are the same; the first determining module 103 is configured to determine a second frequency of the timing signal output to the GOA driving unit according to a discharge duration of an internal capacitor of a subpixel in the display panel.
In an optional implementation manner of this embodiment, the first obtaining module 100 is specifically configured to obtain parameter information of an internal capacitance of a subpixel in the display panel; and determining the discharge time of the internal capacitance of the sub-pixel in the display panel according to the parameter information of the internal capacitance of the sub-pixel in the display panel.
Second embodiment
The application provides a time sequence signal control method of a GOA driving unit, the method is applied to a control chip in a display panel, the display panel comprises a plurality of GOA driving units and a plurality of display areas, the control chip is electrically connected with each GOA driving unit, each display area is driven and displayed by at least one GOA driving unit connected with each display area, as shown in fig. 5, the method specifically comprises the following steps:
step S200: the display state of each display area in the display panel is acquired, wherein the display state is a display maintaining state or a display updating state.
Step S202: and setting the frequency of a time sequence signal output to a GOA driving unit connected with the display area in the display updating state as a first frequency so as to control the scanning frequency of the corresponding display area to be the first scanning frequency.
Step S204: the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display maintaining state is reduced to a second frequency so as to control the scanning frequency of the corresponding display area to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
In the above steps of this embodiment, the connection between the control chip and the GOA driving units is not that, as in the first embodiment, the plurality of GOA driving units are connected in parallel to the timing signal line and receive the same timing signal output by the control chip, but the design of this embodiment is split-screen control, that is, the GOA driving units are individually connected to the control chip, so that the control chip controls each GOA driving unit, and each GOA driving unit is connected to at least one display area.
On the basis of the above, the control chip will execute step S200 to obtain the display status of each display area, so that there may exist some display areas in the display update status and some display areas in the display maintenance status; under such a situation, the control chip outputs a timing signal of a first frequency to the GOA driving unit corresponding to the display area in the display update state, and the control chip outputs a timing signal of a second frequency after being reduced to the GOA driving unit corresponding to the display area in the display sustain state, so that the scan frequency of the display area in the display sustain state is smaller than the scan frequency in the display update state, thereby saving power for the display area in the display sustain state.
In an alternative implementation manner of this embodiment, after performing step S204 to decrease the frequency of the timing signal output to the GOA driving unit connected to the display area in the display maintaining state to the second frequency, as shown in fig. 6, the method further includes:
step S2050: and acquiring display updating information, and determining at least one display area to be updated according to the display updating information.
Step S2051: and judging whether a display area currently in a display maintaining state exists in at least one display area to be updated, and if so, executing the step S2052.
Step S2052: and increasing the frequency of the timing signal output to the GOA driving unit corresponding to the display area to be updated and currently in the display maintaining state to be a first frequency.
On the basis of the foregoing steps, when a picture is updated next time, the scheme may acquire display update information, and then determine at least one display area to be updated according to the display update information, specifically, the scheme may acquire display data information corresponding to each display area, and then determine whether the display data information of each display area changes, and if so, determine that the display area where the display data information changes is the display area to be updated, where the display data information represents display data information of a sub-pixel in the display area, such as a pixel value, by the display driving chip.
After determining at least one display area to be updated, the present solution may determine whether there is a display area currently in the display maintaining state in the at least one display area to be updated, if so, execute step S2052 to increase the frequency of the timing signal output to the GOA driving unit corresponding to the display area to be updated and currently in the display maintaining state to the first frequency; if the display area does not exist, the display area in the display maintaining state does not need to be updated, and the frequency of the time sequence signal is maintained to be the second frequency.
Fig. 7 shows a schematic structural block diagram of a timing signal control apparatus of a GOA driving unit provided in the present application, it should be understood that the apparatus corresponds to the above-mentioned method embodiments executed by the control chip in fig. 5 to 6, and can execute the steps involved in the method executed by the control chip in the foregoing embodiments, and the specific functions of the apparatus can be referred to the description above, and detailed descriptions are appropriately omitted here to avoid repetition. The device includes at least one software function that can be stored in memory in the form of software or firmware (firmware) or solidified in the Operating System (OS) of the device. Specifically, the apparatus includes: a second obtaining module 200, configured to obtain a display state of each display area in the display panel, where the display state is a display maintaining state or a display updating state; a second setting module 201, configured to set a frequency of a timing signal output to a GOA driving unit connected to a display area in a display update state as a first frequency, so as to control a scanning frequency of the corresponding display area as the first scanning frequency; a second adjusting module 202, configured to adjust a frequency of a timing signal output to a GOA driving unit connected to a display area in a display maintaining state to a second frequency, so as to control a scanning frequency of a corresponding display area to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
In the time sequence signal control device of the GOA driving unit designed above, by obtaining the display state of each display area in the display panel, and further turning down the frequency of the time sequence signal output to the GOA driving unit connected to the display area in the display maintaining state to the second frequency, and further controlling the scanning frequency of the corresponding display area to correspondingly decrease to the second scanning frequency, so that the second scanning frequency is smaller than the first scanning frequency when the display area is updated, and on the basis that the second scanning frequency is smaller than the first scanning frequency, when the frame is maintained, the GOA driving unit does not close the switch of the sub-pixel in the corresponding display area as frequently as when the frame is updated and further frequently charges and displays the capacitor, but decreases the first frequency of the time sequence signal to the second frequency and further decreases the first scanning frequency to the second scanning frequency, and then increase the time interval that charges to the electric capacity in the subpixel, make it keep charging for the electric capacity again after the electric energy that stores in the electric capacity basically releases to the greatest extent, like this, solved and not dealt with the time sequence signal after the picture is upgraded, make it keep with picture when upgrading the same frequency to continue outputting and then make the picture keep normal display and make the display panel have the problem of great electric quantity loss, practiced thrift the power consumption loss of display panel.
In an optional implementation manner of this embodiment, the second obtaining module 200 is further configured to obtain display update information; a second determining module 203, configured to determine at least one display area to be updated according to the display update information; a determining module 204, configured to determine whether a display area currently in a display maintaining state exists in at least one display area to be updated; the second adjusting module 202 is further configured to increase the frequency of the timing signal output to the GOA driving unit corresponding to the display area to be updated and currently in the display maintaining state to the first frequency.
In an optional implementation manner of this embodiment, the second determining module 203 is specifically configured to collect display data information corresponding to each display area; judging whether display data information corresponding to each display area changes; and if so, determining the display area with changed display data information as the display area to be updated.
Third embodiment
As shown in fig. 8, the present application provides an electronic device 3 including: a processor 301 and a memory 302, the processor 301 and the memory 302 being interconnected and communicating with each other via a communication bus 303 and/or other form of connection mechanism (not shown), the memory 302 storing a computer program executable by the processor 301, the computer program being executable by the processor 301 when the computing device is running to perform the method process in any of the implementations of the first embodiment or the method process in any of the implementations of the second embodiment, such as the steps S100 to S104: acquiring a display state of the display panel, wherein the display state is a display maintaining state or a display updating state, and when the display panel is in the display updating state, setting the frequency of a time sequence signal output to the GOA driving unit as a first frequency so as to control the scanning frequency of the display panel as a first scanning frequency; when the display panel is in a display maintaining state, the frequency of the time sequence signal output to the GOA driving unit is reduced to a second frequency so as to control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency; or step S200 to step S204: acquiring a display state of each display area in a display panel, wherein the display state is a display maintaining state or a display updating state; setting the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display updating state as a first frequency so as to control the scanning frequency of the corresponding display area as the first scanning frequency; the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display maintaining state is reduced to a second frequency so as to control the scanning frequency of the corresponding display area to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
The present application provides a storage medium having stored thereon a computer program which, when executed by a processor, performs the method procedures of any of the implementations of the first embodiment or the method procedures of any of the implementations of the second embodiment.
The storage medium may be implemented by any type of volatile or nonvolatile storage device or combination thereof, such as a Static Random Access Memory (SRAM), an Electrically Erasable Programmable Read-Only Memory (EEPROM), an Erasable Programmable Read-Only Memory (EPROM), a Programmable Read-Only Memory (PROM), a Read-Only Memory (ROM), a magnetic Memory, a flash Memory, a magnetic disk, or an optical disk.
The present application provides a computer program product which, when run on a computer, causes the computer to perform the method procedures of any of the implementations in the first embodiment or the method procedures of any of the implementations in the second embodiment.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and 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 of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
In addition, 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.
Furthermore, the functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
It should be noted that the functions, if implemented in the form of software functional modules and sold or used as independent products, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: various media capable of storing program codes, such as a usb disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk, or an optical disk.
In this document, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions.
The above description is only an example of the present application and is not intended to limit the scope of the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (10)
1. A method for controlling a timing signal of a GOA driving unit includes:
acquiring a display state of a display panel, wherein the display state is a display maintaining state or a display updating state;
when the display panel is in a display updating state, setting the frequency of a time sequence signal output to the GOA driving unit as a first frequency so as to control the scanning frequency of the display panel as a first scanning frequency;
when the display panel is in a display maintaining state, reducing the frequency of a time sequence signal output to the GOA driving unit to a second frequency so as to control the scanning frequency of the display panel to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
2. The method according to claim 1, wherein before the step of turning down the frequency of the timing signal output to the GOA driving unit to the second frequency, the method further comprises:
acquiring the discharge time of internal capacitors of sub-pixels in the display panel, wherein the display panel comprises a plurality of sub-pixels, each sub-pixel comprises an internal capacitor, and the discharge time of the internal capacitors of the sub-pixels is the same;
and determining a second frequency of the time sequence signal output to the GOA driving unit according to the discharge duration of the internal capacitor of the sub-pixel in the display panel.
3. The method of claim 2, wherein obtaining a discharge duration of an internal capacitance of a subpixel in the display panel comprises:
acquiring parameter information of internal capacitance of a sub-pixel in the display panel;
and determining the discharge time of the internal capacitance of the sub-pixel in the display panel according to the parameter information of the internal capacitance of the sub-pixel in the display panel.
4. The utility model provides a time sequence signal control method of GOA drive unit, characterized by, be applied to the control chip in the display panel, the display panel includes a plurality of GOA drive units and a plurality of display area, the control chip is connected with each GOA drive unit electricity, each display area is shown by the drive of at least one GOA drive unit that is connected with it, the method comprises:
acquiring a display state of each display area in the display panel, wherein the display state is a display maintaining state or a display updating state;
setting the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display updating state as a first frequency so as to control the scanning frequency of the corresponding display area as the first scanning frequency;
the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display maintaining state is reduced to a second frequency so as to control the scanning frequency of the corresponding display area to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
5. The method according to claim 4, wherein after the frequency of the timing signal outputted to the GOA driving unit connected to the display area in the display maintaining state is adjusted to be lower than the second frequency, the method further comprises:
acquiring display updating information, and determining at least one display area to be updated according to the display updating information;
judging whether a display area currently in a display maintaining state exists in the at least one display area to be updated;
if the GOA driving unit exists, the frequency of the time sequence signal output to the GOA driving unit corresponding to the display area to be updated and currently in the display maintaining state is adjusted to be higher than the first frequency.
6. The method of claim 5, wherein the obtaining display update information and determining at least one display area to be updated according to the display update information comprises:
collecting display data information corresponding to each display area;
judging whether display data information corresponding to each display area changes;
and if so, determining the display area with changed display data information as the display area to be updated.
7. An apparatus for controlling a timing signal of a GOA driving unit, the apparatus comprising:
the display control device comprises a first acquisition module, a second acquisition module and a display control module, wherein the first acquisition module is used for acquiring the display state of a display panel, and the display state is a display maintaining state or a display updating state;
the first setting module is used for setting the frequency of a time sequence signal output to the GOA driving unit to be a first frequency when the display panel is in a display updating state so as to control the scanning frequency of the display panel to be the first scanning frequency;
the first adjusting module is used for adjusting the frequency of the time sequence signal output to the GOA driving unit to be a second frequency when the display panel is in a display maintaining state so as to control the scanning frequency of the display panel to be correspondingly reduced to be the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
8. The utility model provides a time sequence signal control device of GOA drive unit which characterized in that, is applied to the control chip in the display panel, the display panel includes a plurality of GOA drive units and a plurality of display area, the control chip is connected with each GOA drive unit electricity, each display area is shown by at least one GOA drive unit drive rather than being connected, the device includes:
the second acquisition module is used for acquiring the display state of each display area in the display panel, wherein the display state is a display maintaining state or a display updating state;
the second setting module is used for setting the frequency of a time sequence signal output to a GOA driving unit connected with a display area in a display updating state as a first frequency so as to control the scanning frequency of the corresponding display area as the first scanning frequency;
the second adjusting module is used for reducing the frequency of the time sequence signal output to the GOA driving unit connected with the display area in the display maintaining state to a second frequency so as to control the scanning frequency of the corresponding display area to be correspondingly reduced to the second scanning frequency; wherein the second scanning frequency is less than the first scanning frequency.
9. An electronic device comprising a memory and a processor, the memory storing a computer program, wherein the processor implements the method of any one of claims 1 to 3 or 4 to 6 when executing the computer program.
10. A storage medium having a computer program stored thereon, wherein the computer program, when executed by a processor, implements the method of any of claims 1 to 3 or 4 to 6.
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| CN202011298705.8A CN112331123A (en) | 2020-11-18 | 2020-11-18 | Sequential signal control method and device of GOA driving unit |
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| CN202011298705.8A CN112331123A (en) | 2020-11-18 | 2020-11-18 | Sequential signal control method and device of GOA driving unit |
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Application publication date: 20210205 |