CN112562558A - Display device, driving method thereof and driving device thereof - Google Patents
Display device, driving method thereof and driving device thereof Download PDFInfo
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- CN112562558A CN112562558A CN201910855090.5A CN201910855090A CN112562558A CN 112562558 A CN112562558 A CN 112562558A CN 201910855090 A CN201910855090 A CN 201910855090A CN 112562558 A CN112562558 A CN 112562558A
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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
Abstract
The invention discloses a display device, a driving method and a driving device thereof, and belongs to the technical field of display. The display device provided by the invention comprises: the display device comprises a display panel and at least one grid driving circuit, wherein the at least one grid driving circuit corresponds to at least one display area included by the display panel one to one; each display area comprises a plurality of sub-display areas, each grid driving circuit is connected with each row of pixels of each sub-display area in one corresponding display area and used for synchronously driving the pixels of the sub-display areas in one corresponding display area, and for each sub-display area, the grid driving circuit is used for driving the pixels in the sub-display areas row by row. The plurality of sub-display areas of each display area in the display device provided by the invention can be refreshed synchronously, and the refresh rate of the display panel is effectively improved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display device, a driving method thereof, and a driving device thereof.
Background
At present, a display device may include a display panel and a gate driving circuit, the gate driving circuit being respectively connected to an on signal terminal, at least one clock signal terminal and a plurality of rows of pixels in the display panel, the gate driving circuit being configured to drive the plurality of rows of pixels in the display panel row by row in response to an on signal provided by the on signal terminal and a clock signal provided by the at least one clock signal terminal.
However, since the related art drives a plurality of rows of pixels in the display panel row by row, the refresh rate of the display panel in the display device can only reach 60 hertz (Hz) to 240Hz in general, and the refresh rate is low.
Disclosure of Invention
The embodiment of the invention provides a display device, a driving method thereof and a driving device, which can solve the problem of low refresh rate of a display panel in the related art. The technical scheme is as follows:
in one aspect, there is provided a display device including: the display device comprises a display panel and at least one grid driving circuit, wherein the at least one grid driving circuit corresponds to at least one display area included by the display panel one to one;
each display area comprises a plurality of sub-display areas, each gate driving circuit is connected with each row of pixels of each sub-display area in one corresponding display area and is used for synchronously driving the pixels of the sub-display areas in one corresponding display area, and for each sub-display area, the gate driving circuit is used for driving the pixels in the sub-display areas row by row.
Optionally, each gate driving circuit is connected to a start signal terminal and at least one clock signal terminal respectively;
the different gate driving circuits are connected with different starting signal ends, and the different gate driving circuits are connected with different clock signal ends.
Optionally, each gate driving circuit includes a plurality of cascaded shift register units;
each shift register unit is connected with one row of pixels in each sub-display area in the corresponding display area.
Optionally, each of the gate driving circuits includes: and the plurality of driving sub-circuits correspond to the plurality of sub-display areas one to one, each driving sub-circuit comprises a plurality of cascaded shift register units, and each shift register unit is connected with one row of pixels in one corresponding sub-display area.
Optionally, the display device further includes: a plurality of source driver circuits; and each column of pixels of each sub-display area is connected with one source electrode driving circuit, and the source electrode driving circuits connected with different sub-display areas of the same display area are different.
Optionally, the display device further includes: a control circuit connected to the display panel;
the control circuit is used for controlling the display panel to rotate by taking a rotating shaft as an axis, and the rotating shaft is parallel to the extending direction of the grid lines in the display panel.
Optionally, the rotation axis is collinear with an axis of the display panel parallel to the extending direction of the gate line; each display area comprises even number of sub display areas, and the even number of sub display areas are symmetrically arranged by taking the rotating shaft as an axis;
alternatively, the axis of rotation is collinear with an edge of the display panel.
In another aspect, there is provided a driving method of a display device, applied to the display device according to the above aspect, the method including:
and providing a starting signal and a clock signal for each gate drive circuit, enabling each gate drive circuit to synchronously drive the pixels of a plurality of sub-display areas included in a corresponding one of the display areas, and driving the pixels in the sub-display areas row by the gate drive circuit for each sub-display area.
Optionally, the frequencies of the turn-on signals provided to different gate driving circuits are different, and the frequencies of the clock signals provided to different gate driving circuits are different.
Optionally, the method further includes:
responding to a rotation instruction, and controlling the display panel to rotate by taking a rotating shaft as an axis;
the frequency of the opening signal provided to the gate driving circuit is proportional to the distance between the display area corresponding to the gate driving circuit and the rotating shaft.
Optionally, the display device further includes: a plurality of source driver circuits; the method further comprises the following steps:
and providing the display data of the sub-display area connected with each source electrode driving circuit to each source electrode driving circuit, so that the source electrode driving circuits connected with the pixels of each column of the same display area synchronously output the display data.
In yet another aspect, there is provided a driving apparatus including: the display device comprises a memory, a processor and a computer program stored on the memory, wherein the processor realizes the driving method of the display device according to the above aspect when executing the computer program.
In still another aspect, there is provided a computer-readable storage medium having instructions stored therein, which when run on a computer, cause the computer to perform the driving method of the display apparatus according to the above aspect.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the embodiment of the invention provides a display device, a driving method thereof and a driving device. Because each gate driving circuit can synchronously drive the pixels of the plurality of sub-display regions included in the corresponding display region, that is, the plurality of sub-display regions of each display region can be synchronously refreshed, compared with the prior art in which a plurality of rows of pixels in the display panel are driven by one gate driving circuit row by row, the refresh rate of the display panel is effectively improved. And because the refresh rate of the display panel is improved, the application range of the display panel can be expanded, and the use experience of a user when the user uses the display device is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another display device provided in an embodiment of the invention;
FIG. 3 is a schematic structural diagram of another display device according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of another display device according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another display device according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 7 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 8 is a flowchart of a driving method of a display device according to an embodiment of the present invention;
fig. 9 is a flowchart of another driving method of a display device according to an embodiment of the present invention;
FIG. 10 is a timing diagram of signals output by a gate driving circuit according to an embodiment of the present invention;
FIG. 11 is a timing diagram of a power-on signal and display data according to an embodiment of the present invention;
FIG. 12 is a schematic view of a driving device according to an embodiment of the present invention;
FIG. 13 is a diagram illustrating a method for synchronously providing display data to a plurality of sub-display regions according to an embodiment of the present invention;
FIG. 14 is a schematic diagram of a spatial voxel provided by an embodiment of the invention;
FIG. 15 is a schematic structural diagram of another display panel according to an embodiment of the present invention;
fig. 16 is a cross-sectional view of a spatial voxel provided by an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention. As shown in fig. 1, the display device may include a display panel 10 and at least one gate driving circuit 20, and the at least one gate driving circuit 20 may correspond one-to-one to at least one display region 100 included in the display panel 10. Wherein at least one means one or more. The display panel 10 shown in fig. 1 includes three display regions 100, and accordingly, the display device includes three gate driving circuits 20 corresponding to the three display regions 100 one by one.
In the embodiment of the present invention, each display region 100 may include a plurality of sub-display regions 101 (each display region 100 shown in fig. 1 includes two sub-display regions 101), each gate driving circuit 20 may be connected to each row of pixels (not shown in fig. 1) of each sub-display region 101 in a corresponding one of the display regions 100, and configured to synchronously drive the pixels of the plurality of sub-display regions 101 included in the corresponding one of the display regions 100, and for each sub-display region 101, the gate driving circuit 20 is configured to drive the pixels in the sub-display region 101 row by row.
It should be noted that, in the embodiment of the present invention, the number of the gate driving circuits 20 included in the display device, the number of the display regions 100 included in the display panel 10, and the number of the sub-display regions 101 included in each display region 100 are not limited. In addition, if the display panel 10 includes a plurality of display regions 100, the number of sub-display regions 101 included in any two display regions 100 may be the same or different, and the embodiment of the present invention does not limit this.
In summary, embodiments of the present invention provide a display device, which may include a display panel and at least one gate driving circuit, where the at least one gate driving circuit corresponds to at least one display region included in the display panel. Because each gate driving circuit can synchronously drive the pixels of the plurality of sub-display regions included in the corresponding display region, that is, the plurality of sub-display regions of each display region can be synchronously refreshed, compared with the prior art in which a plurality of rows of pixels in the display panel are driven by one gate driving circuit row by row, the refresh rate of the display panel is effectively improved. And because the refresh rate of the display panel is improved, the application range of the display panel can be expanded, and the use experience of a user when the user uses the display device is improved.
Optionally, each gate driving circuit 20 may be connected to a start signal terminal and at least one clock signal terminal, the start signal terminals connected to different gate driving circuits 20 may be different, and the clock signal terminals connected to different gate driving circuits 20 may also be different.
That is, each gate driving circuit 20 may synchronously output the clock signal to a plurality of sub-display regions 101 included in a corresponding one of the display regions 100 in response to the turn-on signal provided by the corresponding turn-on signal terminal and the clock signal provided by the corresponding at least one clock signal terminal, and for each sub-display region, output of the clock signal to each row of pixels included in each sub-display region 101 row by row may be implemented.
Because the starting signal ends and the clock signal ends connected with different grid driving circuits are different, the driving device can respectively provide starting signals with different frequencies and clock signals with different frequencies for different grid driving circuits, and therefore different display areas can be refreshed according to different refreshing rates.
For example, assuming that the display device includes three gate driving circuits, as shown in fig. 2, the first gate driving circuit 20 may be connected to the first turn-on signal terminal S1, the clock signal terminal CLK1, and the clock signal terminal CLK2, respectively. The second gate driving circuit 20 may be connected to the second turn-on signal terminal S2, the clock signal terminal CLK3, and the clock signal terminal CLK4, respectively. The third gate driving circuit 20 may be connected to the third enable signal terminal S3, the clock signal terminal CLK5, and the clock signal terminal CLK6, respectively.
The first gate driving circuit 20 may synchronously output the first clock signal and the second clock signal to the two sub display regions 101 included in the first display region 100 under the driving of the first turn-on signal provided by the first turn-on signal terminal S1, and may realize the alternate output of the clock signals row by row for each sub display region 101. For example, the first gate driving circuit 20 may output the first clock signal to the first row of pixels of the two sub-display regions 101 synchronously, output the second clock signal to the second row of pixels of the two sub-display regions 101 synchronously, output the first clock signal to the third row of pixels of the two sub-display regions 101 synchronously, and so on until the last row of pixels of each sub-display region 101.
The second gate driving circuit 20 may synchronously output the third clock signal and the fourth clock signal to the two sub display regions 101 included in the second display region 100 under the driving of the second turn-on signal provided by the second turn-on signal terminal S2, and may implement the alternate output of the clock signals row by row for each sub display region 101.
The third gate driving circuit 20 may synchronously output the fifth clock signal and the sixth clock signal to the two sub display regions 101 included in the third display region 100 under the driving of the third enable signal provided from the third enable signal terminal S3, and may implement the line-by-line alternate output of the clock signals for each sub display region 101.
Note that the turn-on signal terminals to which the different gate driving circuits 20 are connected may be the same, and the clock signal terminals to which the different gate driving circuits 20 are connected may be the same. That is, different gate drive circuits 10 may drive different display regions 100 in synchronization, and for each display region 100, the gate drive circuit 20 may drive the pixels in that display region row by row.
In an alternative implementation manner of the embodiment of the invention, as shown in fig. 3, each gate driving circuit 20 may include a plurality of cascaded shift register units, for example, referring to fig. 3, each shift register unit may be a gate driver on array (GOA) unit, and each gate driving circuit 20 may include N GOA units, where N is an integer greater than 1, of GOA (1) to GOA (N). Each shift register unit may be connected to a row of pixels in each sub display region 101 in a corresponding one of the display regions 100. That is, for any one display region, the plurality of sub-display regions 101 in the display region 100 may share a set of cascaded shift register units, and the plurality of cascaded shift register units may simultaneously provide a clock signal to the plurality of sub-display regions 101 and drive the pixels of each row of each sub-display region 101 row by row.
Alternatively, the number of pixel rows included in each sub-display region 101 in each display region may be equal, for example, may be equal to N. Accordingly, each gate driving circuit 20 may include N cascaded shift register units, and of the N cascaded shift register units, the ith shift register unit may be connected to the ith row of pixels in each sub-display region included in the corresponding one of the display regions 100, respectively. Wherein i is a positive integer not greater than N.
In the embodiment of the present invention, the N cascaded shift register units included in each gate driving circuit 20 may share a clock signal terminal.
For example, as shown in fig. 3, a first shift register unit in the first gate driving circuit 20 may be connected to a first row of pixels in each sub display region, a second shift register unit may be connected to a second row of pixels in each sub display region, and an nth shift register unit may be connected to an nth row of pixels in each sub display region. The N shift register units share the clock signal terminal CLK1 and the clock signal terminal CLK2, and the clock signal provided by the clock signal terminal CLK1 and the clock signal provided by the clock signal terminal CLK2 have complementary timings, that is, when the clock signal provided by the clock signal terminal CLK1 is at the first potential, the clock signal provided by the clock signal terminal CLK2 is at the second potential, and when the clock signal provided by the clock signal terminal CLK1 is at the second potential, the clock signal provided by the clock signal terminal CLK2 is at the first potential. The first potential may be a high potential relative to the second potential.
In another optional implementation manner of the embodiment of the present invention, each gate driving circuit 20 may include a plurality of driving sub-circuits 200 corresponding to the plurality of sub-display regions 101 one to one, each driving sub-circuit 200 may include a plurality of cascaded shift register units, the plurality of cascaded shift register units correspond to a plurality of rows of pixels in a corresponding one of the sub-display regions 101 one to one, and each shift register unit may be connected to a corresponding row of pixels in a corresponding one of the sub-display regions 101.
In the embodiment of the present invention, the driving sub-circuits 200 corresponding to the plurality of sub-display regions 101 one to one share a clock signal terminal.
For example, as shown in fig. 4, each gate driving circuit 20 may include two driving sub-circuits 200, and the two driving sub-circuits 200 share a clock signal terminal CLK1 and a clock signal terminal CLK 2. And the two driving sub-circuits 200 correspond to the two sub-display regions 101 in the corresponding one of the display regions 100 one by one. If each sub-display region 101 includes N rows of pixels, each driving sub-circuit 200 may include N cascaded shift register units, where the ith shift register unit may be connected to the ith row of pixels in the corresponding sub-display region 101.
Alternatively, referring to fig. 5 and fig. 6, the display device may further include a plurality of source driving circuits 30, each column of pixels 00 of each sub-display region is connected to one source driving circuit 30, and the source driving circuits 30 connected to different sub-display regions 101 of the same display region 10 are different. Also, the plurality of source driving circuits 30 connected to the plurality of sub display regions 101 of the same display region 10 may output display data in synchronization.
As an alternative implementation, the sub-display regions 101 included in different display regions 10 may share the source driving circuit, that is, each source driving circuit may be connected to each column of pixels 00 belonging to a plurality of sub-display regions 101 of different display regions 10. For example, if each display region includes Y sub-display regions, the display device may include Y source driving circuits corresponding to the Y sub-display regions one to one, and each column of pixels of the xth sub-display region of each display region may be connected to the xth source driving circuit 30 of the Y source driving circuits. Wherein Y is a positive integer greater than 1, and x is a positive integer not greater than Y.
For example, as shown in fig. 5, assuming that each display region 100 includes two sub display regions 101, the display device may include two source driving circuits 30. Each column of pixels of the first sub-display region 101 in each display region 100 is connected to one source driving circuit 30, and each column of pixels 00 of the second sub-display region 101 in each display region 100 is connected to another source driving circuit 30.
As another alternative implementation manner, the sub-display regions 101 included in different display regions 100 may also all use different source driving circuits 30. That is, the number of the source driving circuits 30 included in the display device may be the same as the number of the sub display regions 101 included in the display panel 10, and each source driving circuit 30 may be connected to only one of the pixels 00 in each column of the sub display region 101.
If each display area 100 includes Y sub-display areas 101, and each sub-display area 101 includes N rows and M columns of pixels, that is, the resolution of each sub-display area 101 is N × M, for any display area, in the process of driving each row of pixels of each sub-display area 101 in the display area 100, Y source driving circuits 30 connected to the display area 100 need to provide display data for (N × M) × Y pixels.
In the embodiment of the present invention, the display device may be a device whose display panel needs to meet an ultra-high refresh rate, for example, a virtual reality display device, an augmented reality display device, a device whose display panel is rotatable, or a device that needs to be viewed at a close distance.
Optionally, if the display device is a device with a rotatable display panel, the display device may further include a control circuit connected to the display panel 10, and the control circuit may control the display panel 10 to rotate around a rotation axis, which may be parallel to an extending direction of the gate lines in the display panel 10.
As an alternative implementation, the rotation axis may be collinear with an axis of the display panel 10 parallel to the extending direction of the gate lines. Each display region 100 may include an even number of sub-display regions 101, and the even number of sub-display regions 101 may be arranged symmetrically with respect to the rotation axis. Therefore, in the rotating process of the display panel, even number of sub-display areas which are symmetrically arranged by taking the rotating shaft as an axis can be refreshed synchronously, so that the uniform change of the displayed image can be ensured, and the display effect of the display device can be ensured.
For example, referring to fig. 6, assuming that the display panel includes 3 display regions, namely, a display region 100a, a display region 100b and a display region 100c, and each display region 100 includes two sub-display regions 101, the two sub-display regions 101 included in each display region 100 are arranged symmetrically with respect to the rotation axis m.
As another alternative implementation, as shown in fig. 7, the rotation axis m may be collinear with the edge of the display panel 10.
It should be noted that, in the embodiment of the present invention, the gate driving circuit may be disposed on an array substrate in a display panel, and accordingly, each shift register unit in the gate driving circuit may also be referred to as a GOA unit, and the gate driving circuit may be applied to an active matrix driving device.
Alternatively, the gate driver circuit may be an Integrated Circuit (IC) provided independently of the display panel.
Alternatively, the gate driving circuit may be a Multiplexer (MUX) driving circuit. Alternatively, the MUX driving circuit may be an IC. The MUX driving circuit may also be a module integrated on a Light Emitting Diode (LED) driver, and accordingly, the display device may be a passive matrix LED display.
It should be noted that, if the display panel is a large-sized panel, the above-mentioned start signal terminal may refer to a start vertical (STV) signal terminal or a clock vertical (CPV) signal terminal.
In summary, embodiments of the present invention provide a display device, which may include a display panel and at least one gate driving circuit, where the at least one gate driving circuit corresponds to at least one display region included in the display panel. Because each gate driving circuit can synchronously drive the pixels of the plurality of sub-display regions included in the corresponding display region, that is, the plurality of sub-display regions of each display region can be synchronously refreshed, compared with the prior art in which a plurality of rows of pixels in the display panel are driven by one gate driving circuit row by row, the refresh rate of the display panel is effectively improved. And because the refresh rate of the display panel is improved, the application range of the display panel can be expanded, and the use experience of a user when the user uses the display device is improved.
Fig. 8 is a flowchart of a driving method of a display device according to an embodiment of the present invention. The driving method may be applied to the display device shown in any one of fig. 1 to 5, and the driving method may be performed by a driving device. As shown in fig. 8, the method may include:
In the embodiment of the present invention, the driving device may provide the start signal and the clock signal to each gate driving circuit, so that each gate driving circuit synchronously outputs the clock signal to a plurality of sub-display regions included in a corresponding one of the display regions, and outputs the clock signal to each row of pixels in each sub-display region row by row.
In summary, embodiments of the present invention provide a driving method for a display device, in which the driving method provides a start signal and a clock signal to each gate driving circuit, so that each gate driving circuit synchronously drives pixels of a plurality of sub-display regions included in a corresponding one of the display regions, and for each sub-display region, the gate driving circuit can drive the pixels in the sub-display region row by row. That is, the sub-display regions of each display region can be refreshed synchronously, and compared with the related art in which a gate driving circuit drives a plurality of rows of pixels in the display panel row by row, the refresh rate of the display panel is effectively improved. And because the refresh rate of the display panel is improved, the application range of the display panel can be expanded, and the use experience of a user when the user uses the display device is improved.
Fig. 9 is a flowchart of another driving method of a display device according to an embodiment of the present invention. The driving method may be applied to the display device shown in any one of fig. 1 to 5, and the driving method may be performed by a driving device. As shown in fig. 9, the method may include:
In the embodiment of the present invention, the driving apparatus may respectively provide the start signal and the clock signal to each gate driving circuit 20, so that each gate driving circuit 20 synchronously outputs the clock signal to a plurality of sub-display regions included in a corresponding one of the display regions, and outputs the clock signal to each row of pixels in each sub-display region row by row.
Taking one display area in the display panel as an example, if the display area includes Y sub-display areas, and the gate driving circuit corresponding to the display area includes Y driving sub-circuits, the frequencies of the turn-on signals provided by the driving device to the driving sub-circuits corresponding to the Y sub-display areas may be the same, and the frequencies of the clock signals CLK provided to the driving sub-circuits corresponding to the Y sub-display areas may also be the same, so that the sub-display areas can be driven synchronously.
For any sub-display region, as shown in fig. 10, it is assumed that the sub-display region includes N rows of pixels, and the N rows of pixels are respectively connected to the gate lines C1 to CN in a one-to-one correspondence manner. The gate driving circuit 20 may supply a clock signal at an active potential (e.g., a high potential as shown in fig. 10) to the gate lines C1 to CN row by row.
As an optional implementation manner, the turn-on signal ends connected to different gate driving circuits 20 may be different, and the clock signal ends connected to different gate driving circuits 20 may also be different, the frequency of the turn-on signal provided by the corresponding driving device to different gate driving circuits may be different, and the frequency of the clock signal provided to different gate driving circuits may be different, that is, the refresh rates corresponding to different display regions may be different. Alternatively, the on signal may be referred to as a frame signal.
As another optional implementation manner, the turn-on signal ends connected to different gate driving circuits 20 may be the same, and the clock signal ends connected to different gate driving circuits 20 may also be the same, and the frequencies of the turn-on signals provided by the corresponding driving devices to different gate driving circuits may be the same, and the frequencies of the clock signals provided to different gate driving circuits may be the same, that is, the refresh rates corresponding to different display regions may be the same.
In the embodiment of the present invention, the driving device may provide the display data of the sub-display regions connected to each source driving circuit, so that the plurality of source driving circuits may simultaneously provide the display data to the respective columns of pixels of the plurality of sub-display regions included in the same display region, so as to implement synchronous refresh of the plurality of sub-display regions.
Optionally, the driving device may be provided with a data storage module, a data integration module, and a timing generation module. The data storage module may be configured to store display data in each display region, the timing generation module is configured to generate a timing control signal for each display region, the timing control signal may include a clock signal, the data integration module may be configured to match the display data of each display region with a corresponding timing control signal, divide the display data of each display region into display data of each sub-display region, provide the display data of each sub-display region to a source driving circuit connected to the sub-display region, and provide the timing control signal to a gate driving circuit.
For any display region, if the display region includes Y sub-display regions, the gate driving circuit 20 corresponding to the display region includes Y driving sub-circuits. As shown in fig. 11, 12 and 13, when driving each sub-display region in the display region, the driving apparatus may integrate the received turn-on signal 0 and display data 0 for driving the display region to obtain turn-on signals 1 to Y corresponding to Y sub-display regions and display data 1 to Y corresponding to Y sub-display regions, and simultaneously generate the clock signal Ch1, the clock signal Ch2 to the clock signal Chz corresponding to the display region. Wherein z may be a positive integer greater than 1. As can be seen from fig. 11, the frequencies of the on signals 1 to Y may be the same.
Then, the driving device can provide the on signal 1 to the on signal Y to Y driving sub-circuits included in the gate driving circuit 20 corresponding to the display region, and provide the display data 1 to the display data Y to Y source driving circuits. That is, the on signal x is supplied to the xth driving sub-circuit, and the display data x is supplied to the xth source driving circuit. The Y driving sub-circuits can synchronously drive each row of pixels of the Y sub-display areas under the control of the starting signals 1 to Y, and meanwhile, the Y source driving circuits can synchronously provide the display data 1 to the display data Y to the corresponding sub-display areas, so that the synchronous refreshing of the Y sub-display areas can be realized.
In the embodiment of the present invention, if the display device is a device in which the display panel is rotatable, a rotation button may be provided on the display device, and when a click operation of a user on the rotation button is detected, a rotation instruction is generated, and further, in response to the rotation instruction, the display panel may be controlled to rotate around the rotation axis.
Optionally, the frequency of the turn-on signal provided by the driving device to the gate driving circuit may be directly proportional to the distance between the display area corresponding to the gate driving circuit and the rotation axis, that is, the closer the display area is to the rotation axis, the lower the frequency of the turn-on signal provided by the driving device to the gate driving circuit corresponding to the display area is. The frequency of the frame signal supplied to the gate driver circuits corresponding to the different display regions may be increased by multiples in a direction in which the display regions are away from the rotation axis.
It should be noted that the frequency of the turn-on signal provided by the driving device to the gate driving circuit corresponding to each display region, that is, the refresh rate of the display region, may be greater than the refresh rate of the display region close to the rotation axis in the embodiment of the present invention.
For example, in fig. 5, it is assumed that the refresh rate of the display area 100c is a first refresh rate, the refresh rate of the display area 100b is a second refresh rate, and the refresh rate of the display area 100a is a third refresh rate. The first refresh rate is greater than the second refresh rate, which is greater than the third refresh rate. The first refresh rate may be phase x phase frequency, which may be 20000Hz, for example. The second refresh rate may be 50% to 80% of the first refresh rate, and the third refresh rate may range from hundred Hz to thousand Hz, for example, 240 Hz.
The phase (phase) is to divide a circumference formed by the display panel during the rotation process into a plurality of angles according to a preset angle interval. The smaller the preset angle interval is, the more the number of the divided angles is, and the finer the image quality of the displayed image is. The phase frequency (phase frequency) refers to a flicker frequency of an image at each phase, and if the flicker frequency of an image displayed at each phase is greater than 10Hz, a user can view a stable image, and if the flicker frequency of an image displayed at each phase is greater than 24Hz, a user can view a continuous dynamic image.
In the embodiment of the present invention, during the high-speed rotation of the display panel, as shown in fig. 14, a plurality of voxels v, that is, spatial pixels, may be formed, where the voxels v are spatial voxels formed by the pixels in the display panel shown in fig. 15 during the rotation of the display panel around the rotation axis m. Wherein the total number of voxels may be the number of pixels in the display panel x the phase.
In the embodiment of the invention, in the process of rotating the display panel, due to the fact that the refresh rates of different display areas are different, the homogenization of voxels formed by the display panel in the rotating process can be ensured, and the display effect of the display device is improved. And because the frequency of the turn-on signal provided by the driving device to the gate driving circuit is in direct proportion to the distance between the display area corresponding to the gate driving circuit and the rotating shaft, the effect that the circumferences of the voxels of different display areas drawn by adjacent time points are equal or approximately equal in the rotating process of the display panel can be achieved, the homogenization of the voxels formed in the rotating process of the display panel is further ensured, and the display effect of the display device is further improved.
Taking a small display device to be viewed at a close distance as an example, the display panel of the display device may be as shown in fig. 5, and referring to fig. 5 and fig. 16, the voxel v1 in the display area 100a may have a circumference of L1 at an adjacent time point, the voxel v2 in the display area 100c may have a circumference of L2 at an adjacent time point, and the voxel v3 in the display area 100b may have a circumference of L3 at an adjacent time point, and it can be seen from fig. 16 that L1, L2, and L3 are approximately equal.
In the embodiment of the present invention, the number of display regions included in the display panel, the number of sub-display regions included in each display region, and the refresh rate of each display region may be determined by software simulation according to parameters such as a viewing distance, the number of display regions, a phase, a viewing static image, or a viewing dynamic image.
It should be noted that, the sequence of the steps of the driving method of the display device provided in the embodiment of the present invention may be appropriately adjusted, and the steps may also be deleted according to the situation. For example, step 802 may be performed synchronously with step 801, or steps 802 and 803 may be deleted as appropriate. Any method that can be easily conceived by those skilled in the art within the technical scope of the present disclosure is covered by the protection scope of the present disclosure, and thus, the detailed description thereof is omitted.
In summary, embodiments of the present invention provide a driving method for a display device, in which the driving method provides a start signal and a clock signal to each gate driving circuit, so that each gate driving circuit synchronously drives pixels of a plurality of sub-display regions included in a corresponding one of the display regions, and for each sub-display region, the gate driving circuit can drive the pixels in the sub-display region row by row. That is, the sub-display regions of each display region can be refreshed synchronously, and compared with the related art in which a gate driving circuit drives a plurality of rows of pixels in the display panel row by row, the refresh rate of the display panel is effectively improved. And because the refresh rate of the display panel is improved, the application range of the display panel can be expanded, and the use experience of a user when the user uses the display device is improved.
An embodiment of the present invention provides a driving apparatus, which may include: a memory, a processor and a computer program stored on the memory, the processor implementing the method of driving the display device as shown in fig. 8 or 9 when executing the computer program. The driving device may be an LED driver, or may also be a Timing Controller (TCON).
An embodiment of the present invention is a computer-readable storage medium having instructions stored therein, which, when run on a computer, cause the computer to perform a driving method of a display apparatus as shown in fig. 8 or 9.
The invention is not to be considered as limited to the particular embodiments shown and described, but is to be understood that various modifications, equivalents, improvements and the like can be made without departing from the spirit and scope of the invention.
Claims (12)
1. A display device, characterized in that the display device comprises: the display device comprises a display panel and at least one grid driving circuit, wherein the at least one grid driving circuit corresponds to at least one display area included by the display panel one to one;
each display area comprises a plurality of sub-display areas, each gate driving circuit is connected with each row of pixels of each sub-display area in one corresponding display area and is used for synchronously driving the pixels of the sub-display areas in one corresponding display area, and for each sub-display area, the gate driving circuit is used for driving the pixels in the sub-display areas row by row.
2. The display device according to claim 1, wherein each of the gate driving circuits is connected to a turn-on signal terminal and at least one clock signal terminal, respectively;
the different gate driving circuits are connected with different starting signal ends, and the different gate driving circuits are connected with different clock signal ends.
3. The display device according to claim 2, wherein each of the gate driving circuits includes a plurality of cascaded shift register cells;
each shift register unit is connected with one row of pixels in each sub-display area in the corresponding display area.
4. The display device according to claim 2, wherein each of the gate driving circuits comprises: and the plurality of driving sub-circuits correspond to the plurality of sub-display areas one to one, each driving sub-circuit comprises a plurality of cascaded shift register units, and each shift register unit is connected with one row of pixels in one corresponding sub-display area.
5. The display device according to any one of claims 1 to 4, characterized in that the display device further comprises: a plurality of source driver circuits;
and each column of pixels of each sub-display area is connected with one source electrode driving circuit, and the source electrode driving circuits connected with different sub-display areas of the same display area are different.
6. The display device according to any one of claims 1 to 4, characterized in that the display device further comprises: a control circuit connected to the display panel;
the control circuit is used for controlling the display panel to rotate by taking a rotating shaft as an axis, and the rotating shaft is parallel to the extending direction of the grid lines in the display panel.
7. The display device according to claim 6, wherein the rotation axis is collinear with an axis of the display panel parallel to an extending direction of the gate line; each display area comprises even number of sub display areas, and the even number of sub display areas are symmetrically arranged by taking the rotating shaft as an axis;
alternatively, the axis of rotation is collinear with an edge of the display panel.
8. A method for driving a display device, applied to the display device according to any one of claims 1 to 7, the method comprising:
and providing a starting signal and a clock signal for each gate drive circuit, enabling each gate drive circuit to synchronously drive the pixels of a plurality of sub-display areas included in a corresponding one of the display areas, and driving the pixels in the sub-display areas row by the gate drive circuit for each sub-display area.
9. The method of claim 8,
the gate driving circuits are configured to supply the clock signal to the gate driving circuits at different frequencies.
10. The method of claim 9, further comprising:
responding to a rotation instruction, and controlling the display panel to rotate by taking a rotating shaft as an axis;
the frequency of the opening signal provided to the gate driving circuit is proportional to the distance between the display area corresponding to the gate driving circuit and the rotating shaft.
11. The method of claim 8, wherein the display device further comprises: a plurality of source driver circuits; the method further comprises the following steps:
and providing the display data of the sub-display area connected with each source electrode driving circuit to each source electrode driving circuit, so that the source electrode driving circuits connected with the pixels of each column of the same display area synchronously output the display data.
12. A drive device, characterized in that the drive device comprises: a memory, a processor and a computer program stored in the memory, wherein the processor implements the method of driving the display device according to any one of claims 8 to 11 when executing the computer program.
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