CN113838435B - Display scanning method, device, equipment, storage medium and drive circuit - Google Patents
Display scanning method, device, equipment, storage medium and drive circuit Download PDFInfo
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- CN113838435B CN113838435B CN202111113495.5A CN202111113495A CN113838435B CN 113838435 B CN113838435 B CN 113838435B CN 202111113495 A CN202111113495 A CN 202111113495A CN 113838435 B CN113838435 B CN 113838435B
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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
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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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
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
Abstract
The invention discloses a display scanning method, which comprises the following steps: acquiring image information to be displayed and receiving a scanning signal output by a driving circuit of a display according to the image information; and driving scanning lines in the display by using the scanning signals, and scanning a display area of the display without blanking according to each frame image in the image information. The invention also discloses a display scanning device, equipment, a storage medium and a driving circuit. According to the invention, by reducing the scanning blanking time during scanning the display area, the scanning blanking time can be used for charging the display area, the charging time of the display area is increased, and the problem of abnormal display caused by insufficient charging time of the existing high-resolution and high-refresh-rate display is solved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display scanning method, apparatus, device, storage medium, and driving circuit.
Background
The scanning mode of the conventional display often has the line blanking (H _ Blank) and/or the field blanking (V _ Blank), and the charging time of the display is compressed to a certain extent due to the existence of the blanking time, especially the existence of V _ Blank. With the continuous development of display technology towards high resolution and high refresh rate, the scanning time of one frame of image in the display is gradually reduced, and consequently, the proportion of the blanking time in the scanning time of the whole frame of image is increased, so that the display is insufficiently charged, and the display is insufficiently charged to cause various problems such as color cast and the like.
Disclosure of Invention
The invention mainly aims to provide a display scanning method, a display scanning device, a display scanning equipment, a display scanning storage medium and a display scanning driving circuit, and aims to solve the technical problem that the charging time of a display is insufficient due to the existence of blanking time.
In addition, in order to achieve the above object, the present invention further provides a display scanning method applied to a driving circuit of a display, the display scanning method including the steps of:
acquiring image information to be displayed and receiving a scanning signal output by a driving circuit of a display according to the image information;
and driving scanning lines in the display by using the scanning signals, and scanning a display area of the display without blanking according to each frame image in the image information.
Optionally, the step of driving a scan line in the display by using the scan signal and scanning a display area of the display without blanking according to each frame image in the image information includes:
driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in a first frame of the image information, and determining a scanning termination point for scanning the display area according to the target image;
setting the scanning end point as a scanning starting point, returning and executing the steps of driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in the first frame of the image information, and determining the scanning end point for scanning the display area according to the target image until the target image is the last frame of image in the image information.
Optionally, the step of driving a scan line in the display by using the scan signal, and scanning the display area according to a target image which is not scanned in a first frame of the image information includes:
setting two end points of each data line to be scanned in the display area as a scanning starting point and a scanning ending point of line scanning respectively, wherein the scanning starting point of an odd line and the scanning starting point of an even line in each data line are distributed at different ends of the display area;
and driving a scanning line in the display by using the scanning signal according to a target image which is not scanned in the first frame of the image information, and sequentially scanning the data lines of the display area line by line from a scanning starting point to a scanning ending point of each data line until the line scanning of the last line in each data line is finished.
Optionally, a row scanning direction of an odd-numbered line of the data lines is opposite to a row scanning direction of an even-numbered line of the data lines.
Optionally, the step of driving a scan line in the display by using the scan signal, and scanning the display area according to a target image which is not scanned in a first frame of the image information includes:
setting two end points of each to-be-scanned data line of the display area in the display area as a scanning starting point and a scanning ending point of line scanning respectively, wherein the scanning starting point of each data line is located at the same end of the display area, the scanning ending point of each data line is located at the same end of the display area, and the scanning starting point and the scanning ending point are located at different ends of the display area;
and driving a scanning line in the display by using the scanning signal according to a target image which is not scanned in the first frame of the image information, and sequentially scanning the data lines of the display area line by line from a scanning starting point to a scanning ending point of each data line until the line scanning of the last line in each data line is finished.
Optionally, the row scanning direction of each data line is the same.
In addition, to achieve the above object, the present invention further provides a display scanning apparatus, including:
the data acquisition module is used for acquiring image information to be displayed and receiving a scanning signal output by a driving circuit of the display according to the image information;
and the scanning driving module is used for driving scanning lines in the display by using the scanning signals and carrying out non-blanking scanning on a display area of the display according to each frame image in the image information.
In addition, to achieve the above object, the present invention also provides a terminal device, including: the scanning driving method comprises a memory, a processor and a display scanning driving program which is stored on the memory and can run on the processor, wherein when the display scanning driving program runs on the processor, a driving circuit for driving a display outputs scanning signals, and the scanning signals are used for driving scanning lines in the display to realize the steps of the display scanning method.
In addition, to achieve the above object, the present invention further provides a computer readable storage medium, which stores a display scan driver program, and when the display scan driver program is executed by a processor, a driving circuit for driving a display outputs a scan signal, where the scan signal is used to drive a scan line in the display to implement the steps of the display scan method as described above.
In addition, in order to achieve the above object, the present invention further provides a driving circuit applied to a display, wherein the driving circuit outputs a scan signal according to image information to be displayed, and the scan signal is used for driving scan lines in the display to implement the steps of the display scanning method as described above.
The embodiment of the invention provides a display scanning method, a display scanning device, display scanning equipment, a storage medium and a driving circuit. Compared with the prior art that the display with high resolution and high refresh rate is abnormal due to insufficient charging time of the display area, the embodiment of the invention obtains the image information to be displayed and receives the scanning signal output by the driving circuit of the display according to the image information; and driving scanning lines in the display by using the scanning signals, and scanning a display area of the display without blanking according to each frame image in the image information. The scanning blanking time in the display scanning can be fully utilized, the scanning blanking time is used for charging the display area, the charging time of the display area is increased by reducing the scanning blanking time in the display area scanning process, and the problem of display abnormity caused by insufficient charging time of the high-resolution and high-refresh-rate display at present is solved.
Drawings
Fig. 1 is a schematic hardware structure diagram of an implementation manner of a display scanning driving device according to an embodiment of the present invention;
FIG. 2 is a flowchart illustrating a display scanning method according to a first embodiment of the present invention;
FIG. 3 is a schematic view of a conventional scanning method with vertical blanking according to a first embodiment of the scanning method of the present invention;
FIG. 4 is a schematic view of a scanning method without blanking in the first embodiment of the scanning method of the display device according to the present invention;
FIG. 5 is a timing diagram of scan signals according to a first embodiment of a scanning method of a display device of the present invention;
FIG. 6 is a timing diagram of scan signals in a first embodiment of a scanning method of a display according to the invention;
FIG. 7 is a schematic diagram of charging a display according to a first embodiment of a display scanning method of the present invention;
FIG. 8 is a schematic view of a line scanning method with line blanking according to a second embodiment of the display scanning method of the present invention;
FIG. 9 is a schematic view of a line scanning method without line blanking according to a second embodiment of the display scanning method of the present invention;
FIG. 10 is a functional block diagram of a display scanning device according to an embodiment of the present invention.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In the following description, suffixes such as "module", "part", or "unit" used to indicate elements are used only for facilitating the description of the present invention, and have no particular meaning in themselves. Thus, "module", "component" or "unit" may be used mixedly.
The display scanning method provided by the embodiment of the invention is applied to a driving circuit of a display and is implemented on a display scanning driving terminal, and the display scanning driving terminal (also called as a terminal, equipment or terminal equipment) can be a PC (personal computer), and can also be a mobile terminal equipment with display and data processing functions, such as a smart phone, a tablet computer, a portable computer and the like.
As shown in fig. 1, the terminal may include: a processor 1001, such as a CPU, a network interface 1004, a user interface 1003, a memory 1005, a communication bus 1002. Wherein a communication bus 1002 is used to enable connective communication between these components. The user interface 1003 may include a Display screen (Display), and the optional user interface 1003 may also include a standard wired interface, a wireless interface. The network interface 1004 may optionally include a standard wired interface, a wireless interface (e.g., WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory such as a disk memory. The memory 1005 may alternatively be a storage device separate from the processor 1001.
Those skilled in the art will appreciate that the terminal structure shown in fig. 1 is not intended to be limiting and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer-readable storage medium, may include therein an operating system, a network communication module, a user interface module, and a display scan driver.
In the terminal shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client (user side) and performing data communication with the client; and the processor 1001 may be configured to call a display scan driver stored in the memory 1005, and when the display scan driver is executed by the processor, the display scan driver drives the driving circuit of the display to output a scan signal, where the scan signal is used to drive a scan line in the display to implement the operations in the display scan method provided by the following embodiments.
Based on the hardware structure of the device, various embodiments of the display scanning method of the invention are provided.
In various embodiments of the display scanning method of the present invention, the key technical terms used mainly include:
h _ blank: and line blanking, namely, when the display area of the display is subjected to line scanning, jumping to the time used for the next line of data after one line of data is scanned.
V _ blank: and (4) field blanking, namely, when the display area of the display is scanned, after one frame of image is scanned, jumping to the time for scanning the starting point of the whole display area before the next frame of image is scanned.
It should be noted that, H _ Blank and/or V _ Blank generally exist in the conventional scanning manner of the display at present. Due to the existence of Blank time, especially V _ Blank time, the charging time of the display is compressed to a certain extent. Taking the display of 4k 60HZ as an example, if the number of rows of the display area is 2160 rows, the time occupied by V _ Blank can be used to scan 90 rows, and the scanning time for the whole display area is equivalent to 2250 rows. Assuming that the scan time 1h =1s/60HZ/2250=7.41us for each row of the 4k 60HZ display, the Charging time = C × H (where C is a coefficient, determined from the performance test results of the display, is a fixed value for the same display, such as C = 0.6). If V _ Blank does not take time, then only 2160 lines of the display area need to be scanned per frame image, and then the scanning time 1H' =1s/60HZ/2160=7.72us per line at this time. It can be seen that if the time of the V _ Blank region can be utilized, the scanning time for each line of the display region in the same time can be increased by Δ H =1h =1h =.72us-7.41us =.0.31us. For a high resolution, high refresh rate display, the increased scanning time per line of the display area is very considerable, and many problems such as color shift caused by insufficient charging time can be solved.
Based on the above, the display scanning method provided by the invention is applied to a driving circuit of a display, and the scanning lines in the display are driven by changing the scanning signals output by the driving circuit, so that the non-blanking scanning of the display area of the display can be realized, the blanking time is reduced, the scanning time is increased, the charging time of the display area of the display is increased, the display quality of images is improved, and the problem of insufficient charging time of the display with high resolution and high refresh rate is solved.
Specifically, referring to fig. 2, fig. 2 is a schematic flowchart of a first embodiment of a display scanning method according to the present invention, and in the first embodiment of the display scanning method according to the present invention, the display scanning method includes:
step S10, obtaining image information to be displayed and receiving a scanning signal output by a driving circuit of a display according to the image information;
in this embodiment, the display scanning method is applied to a driving circuit of a display, and when a display scanning driving program runs on a driving device, the driving circuit of the display outputs a scanning signal to drive a scanning line in the display to scan the display, where the display includes a Liquid Crystal Display (LCD), and the LCD is taken as an example for description below. It should be noted that the driving circuit of the display includes a logic circuit, such as a T-CON (time controller), which can perform a time sequence control on the digital signal output by the main circuit and convert a row and column driving digital signal required by the lcd glass substrate, that is, a scanning signal for driving a scanning line, and the scanning line scans the display area of the display according to a row and column driving time sequence relationship corresponding to the output scanning signal. Specifically, the output scanning signals are subjected to time sequence control through a logic circuit in the driving circuit, and blanking-free scanning of a display area of the display is achieved. When scanning the display area of the display, firstly obtaining the image information to be displayed, wherein the image information comprises at least one frame of image to be displayed, then receiving the scanning signal output by the driving circuit, and the scanning signal is modulated by the driving circuit according to the image information to be displayed and is subjected to time sequence control by the logic circuit.
And step S20, driving the scanning lines in the display by using the scanning signals, and scanning the display area of the display without blanking according to each frame image in the image information.
Further, after receiving the scanning signal output by the driving circuit, the scanning line in the display is driven by the received scanning signal, and the display area of the display is scanned without blanking according to each frame image in the image information to be displayed. By the non-blanking scanning, the charging time of the display area can be increased by fully utilizing the time of V _ Blank, and the problem of abnormal display caused by insufficient charging time of the display is solved.
Further, the step of driving the scanning lines in the display by using the received scanning signals, and then performing non-blanking scanning on the display area of the display according to each frame image in the image information to be displayed includes:
step A1, driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in a first frame of the image information, and determining a scanning termination point for scanning the display area according to the target image;
step A2, setting the scanning end point as a scanning start point, returning and executing the step of driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in the first frame of the image information, and determining the scanning end point for scanning the display area according to the target image until the target image is the last frame of image in the image information.
It is known that the scanning mode of the conventional display starts from a corner of the display area of the display when scanning one frame of image and ends at a diagonal corner, and then when scanning the next frame of image, the scanning point of the scanning line jumps from the scanning ending point of the previous frame of image to the scanning starting point to start scanning the next frame of image. That is, in the conventional scanning manner of the display, when scanning multiple frames of images continuously, the scanning point of the scanning line always starts scanning from the same point of the display area of the display to the same point, and the scanning point includes starting from the upper left corner to the lower right corner, starting from the upper right corner to the lower left corner, starting from the lower left corner to the upper right corner, and starting from the lower right corner to the upper left corner. This embodiment and the following examples are described by taking the example of starting from the top left corner to the bottom right corner.
Referring to fig. 3, fig. 3 is a conventional display scanning method with V _ blank, as shown in fig. 3, after acquiring image information to be displayed and receiving a scanning signal output by a driving circuit, driving a scanning line of a display by using the received scanning signal, then scanning line by line from the upper left corner of a display area of the display according to a first frame image in the image information to be displayed, when scanning of a last line of the display area is completed, a scanning point of the scanning line ends at the lower right corner of the display area, thereby completing scanning of the first frame image, when scanning a next frame image, the scanning point of the scanning line returns to the upper left corner from the lower right corner of the display area, scanning the next frame image from the first line of the display area is resumed, and this step is repeated until scanning of the last frame image is completed. That is, in the conventional scanning manner, the first frame image is scanned from the 1 st line to the last line of the display area, and the scanning of the complete frame image is completed. And then, when scanning is carried out according to the 2 nd frame image, jumping to the 1 st line again to start scanning, and thus, completing the normal display of all the images to be displayed in a circulating manner. The time gap from the end point of the previous frame image scanning to the start point of the next frame image scanning is the time of V _ Blank, that is, the time gap from the 1 st frame image to the 2 nd frame image, the time gap from the 2 nd frame image to the 3 rd frame image, and the time gap from the N-1 st frame image to the N th frame image are all V _ Blank times.
Referring to fig. 4 again, fig. 4 is a schematic diagram of a scanning manner of the display without V _ blank in this embodiment, in fig. 4, for image information to be displayed, a scanning line of the display is driven by a scanning signal, a display area is scanned according to a first frame image, the scanning is performed line by line from the top left corner of the display area to the bottom right corner of the display area, then an end point of the scanning of the first frame image is used as a starting point of the scanning of a next frame image, the scanning is performed line by line from the bottom right corner of the display area according to the image to be displayed of the next frame image, and at this time, a scanning direction of each line is opposite to a scanning direction of each line of the first frame image.
Further, the scanning signal for scanning the display area of the display comprises a clock signal (CK) and a start Signal (ST), wherein the clock signal is used for controlling the time length for scanning the display area, and the start signal is used for controlling the scanning line to start scanning the whole display area. Taking the above-mentioned display of 4k 60HZ as an example, the number of rows in the display area is 2160 rows, the time occupied by V _ Blank is 90 rows, and the waveform diagrams of the clock signal (CK) and the start Signal (ST) are shown in fig. 5 to 6, where fig. 5 is a timing diagram of the clock signal (CK) and the start Signal (ST) of the scan signal in the conventional scan mode, fig. 6 is a timing diagram corresponding to the clock signal (CK) and the start Signal (ST) of the scan signal in the scan mode in this embodiment, as can be seen from fig. 5 and 6, the scan mode in this embodiment can continuously scan the display area of the display, change the scan time from 2250 rows to 2160 rows, and reduce the time of V _ Blank.
Further, referring to fig. 7, fig. 7 is a schematic diagram of charging the display area in the conventional scanning manner and the scanning manner in the embodiment, in fig. 7, the upper diagram is a schematic diagram of charging in the conventional scanning manner, and the lower diagram is a schematic diagram of charging in the scanning manner in the embodiment, where CK and CK 'are clock signals, TP and TP' are data latch signals, when the data latch signal is at a high level, the scan data is latched, and when the data latch signal is at a falling edge, a time between the falling edge of the clock signal and the falling edge closest to the falling edge is a charging duration of the display area. In the conventional scanning mode, after the previous frame is scanned, the next frame returns to the first line to scan the last line, and the time gap from the 1 st frame end line to the next frame end line is V _ Blank, which occupies a certain time. Also taking the 4k 60HZ panel as an example, in conjunction with fig. 5 and 6, the V _blankarea is generally set to 90 rows, which takes 4% of the time, while in the scanning mode in this embodiment, the time of V _ Blank is already used. Since the scanning time for the display area of each frame image is fixed, that is, 1s/60hz = 16.67ms/frame, when each frame image is scanned, the number of lines to be scanned is reduced by 90 lines, and the time for scanning each line of data is increased by about 0.31us. The charging time is the scanning time of each line multiplied by a fixed factor, and if the factor is 0.6 for example, the final charging time will be increased by 2-3us.
As is apparent from fig. 7, the scanning time from scanning 2250 lines to scanning 2160 lines of each frame image is equivalent to pulling up all CK signals of each frame image to V _ Blank area and filling all V _ Blank area, so that each CK falling edge is shifted to the right, and the Charging time is the time between the CK falling edge and the falling edge of the TP signal nearest to the CK falling edge, so that the Charging time is significantly increased when the CK falling edge is shifted to the right.
As can be seen from fig. 4, the scanning directions of each line of the next frame image and the first frame image may also be the same, and the scanning lines always scan along the same direction, which can simplify the complexity of the logic circuit for controlling the timing of the scanning signal, but at this time, the scanning point of the scanning line needs to perform one horizontal jump from the lower right corner to the lower left corner of the display area, and starts to scan from the lower left corner to the upper right corner of the display area, and once the scanning of one frame image is completed, the time of V _ blank is reduced, but the time of H _ blank is increased.
In summary, in this embodiment, when scanning the display area, scanning is started from the first row of the display area according to the 1 st frame image, and scanning is performed from top to bottom row by row to the last row, so as to complete scanning of the 1 st frame image, and when scanning is performed according to the 2 nd frame image, the scanning point of the scanning line does not need to jump to the first row of the display area, but scan from bottom to top row by row according to the previous frame image, and scan from the last row to the first row. And circulating the above steps, scanning the odd frame image from the first line to the last line, taking the scanning end point of the previous frame image of the even frame image as the scanning starting point, and then scanning the previous frame image from the last line to the first line. By scanning in the mode, the V _ Blank time can be fully utilized, the partial time is used for charging the display area, the charging time of the display area is increased, and the problem of display abnormity of the current high-resolution and high-refresh-rate display due to insufficient charging time is solved.
It should be understood that the above scanning manner is only used for exemplary illustration of the embodiment of the present invention, and in practical application, the lower portion of the display area of the display may be used as a first line, and the first frame image may be scanned line by line from bottom to top, which is not described herein again.
In the embodiment, the image information to be displayed is acquired, and the scanning signal output by the driving circuit of the display according to the image information is received; and driving scanning lines in the display by using the scanning signals, and scanning a display area of the display without blanking according to each frame image in the image information. The scanning blanking time in the display scanning can be fully utilized, the scanning blanking time is used for charging the display area, the charging time of the display area is increased by reducing the scanning blanking time in the display area scanning process, and the problem of display abnormity caused by insufficient charging time of the high-resolution and high-refresh-rate display at present is solved.
Further, on the basis of the above embodiments of the present invention, a second embodiment of the display scanning method of the present invention is provided. This embodiment is a step of step A1 refinement in the first embodiment, and the difference between this embodiment and the above embodiments of the present invention is that, on the basis of performing V _ blank-free scanning in the above embodiments, the step of driving a scan line in a display by using a scan signal output by a driving circuit, and scanning a display area according to a target image which is not scanned in a first frame of image information to be displayed includes:
step A01, setting two end points of each to-be-scanned data line of the display area in the display area as a scanning starting point and a scanning ending point of line scanning respectively, wherein the scanning starting point of each data line is located at the same end of the display area, the scanning ending point of each data line is located at the same end of the display area, and the scanning starting point and the scanning ending point are located at different ends of the display area;
step a02, according to a target image of a first frame in the image information that is not scanned, driving a scanning line in the display by using the scanning signal, and performing line scanning on each data line of the display area sequentially line by line from a scanning start point to a scanning end point of each data line until completing line scanning on a last line in each data line.
In this embodiment, when scanning the display area of the display according to each frame image in the image information to be displayed, the data lines of the display area are scanned sequentially. The line scanning method includes scanning with line blanking and scanning without line blanking.
Firstly, for the scanning with line blanking, the scanning of each data line in the display area is the same scanning direction, which can greatly simplify the modulation of the display driving circuit to the scanning signal. As shown in fig. 5, in an exemplary line scan with line blanking, the scan start point of each data line is distributed at the same end of the display area, the scan end point of each data line is distributed at the other end of the display area, and the start point and the end point are located at opposite ends of the display area. For each frame of image to be displayed, scanning lines start scanning from the scanning starting point of the data line of the display area to the scanning ending point of the data line, when the scanning of one row of data line is finished, the scanning lines need to jump to the scanning starting point of the next data line to start scanning of the next data line, and the process is circulated until the line scanning of the last row of data line of the display area is finished, so that the complete scanning of one frame of image is finished. In the line scanning method with line blanking, the scanning direction when scanning each data line in the display area is the same, and is one of left to right, right to left, top to bottom, and bottom to top, and therefore, the scanning direction of line scanning is not limited to the method shown in fig. 8.
Further, when performing line scanning on an image to be displayed in each frame, the line scanning may also be line scanning without H _ blank, and specifically includes:
step A03, setting two end points of each to-be-scanned data line of the display area in the display area as a scanning starting point and a scanning ending point of line scanning respectively, wherein the scanning starting point of an odd line and the scanning starting point of an even line in each data line are distributed at different ends of the display area;
step a04, according to a target image of a first frame in the image information that is not scanned, driving a scanning line in the display by using the scanning signal, and performing line scanning on each data line of the display area sequentially line by line from a scanning start point to a scanning end point of each data line until completing line scanning on a last line in each data line.
Referring to fig. 9, fig. 9 is a schematic diagram of a line scanning method of the present embodiment without line blanking, as shown in fig. 9, in the line scanning method without line blanking, a scanning start point and a scanning end point of each data line of a display area are alternately distributed at the same end of the display area, that is, for each data line of the display area, the scanning start point of an odd line is located at the same end of the display area, and the scanning start point of an even line is located at the other end of the display area, and is located at the same end as the scanning end point of the odd line. In contrast, the scan start point of the even-numbered line and the scan end point of the odd-numbered line are located at the same end of the display area, and the scan start point and the scan end point of the same data line are located at opposite ends of the display area.
When the display area is scanned in lines according to each frame image, the scanning mode of each data line is from the scanning starting point to the scanning ending point, namely from the scanning starting point of the first line of the display area to the scanning ending point of the first line, the scanning of the first data line is completed, then the scanning point of the scanning line is vertically jumped to the next data line, and the data line is scanned in the opposite scanning direction of the first line. For each data line of the display area, the row scanning direction of the odd-numbered lines is opposite to the row scanning direction of the even-numbered lines. Therefore, the vertical blanking time of each data line in the line scanning is much shorter than the horizontal blanking time, the horizontal blanking time is much shorter than the line blanking time, and the vertical blanking time is much shorter than the line blanking time, so that the line blanking time can be reduced, the charging time of the display area can be further increased, and the display quality can be improved.
In this embodiment, line scanning is performed on a display area according to an image to be displayed in each frame, where the line scanning includes line scanning with blanking and line scanning without line blanking, and with line scanning with blanking, when performing V _ blank-free scanning, modulation of a scanning signal by a driving circuit can be simplified, so as to improve driving speed; by using the line scanning without line blanking, the line blanking time during the line scanning can be reduced, and the charging time for the display area is further increased, so that the display quality of the image is improved, and the problem of abnormal display of a display with high resolution and high refresh rate due to insufficient charging time is solved.
In addition, referring to fig. 10, an embodiment of the present invention further provides a display scanning apparatus, where the display scanning apparatus includes:
the data acquisition module 10 is used for acquiring image information to be displayed and receiving a scanning signal output by a driving circuit of the display according to the image information;
and a scan driving module 20, configured to drive a scan line in the display by using the scan signal, and perform non-blanking scan on a display area of the display according to each frame image in the image information.
Optionally, the scan driving module 20 includes:
the line scanning unit is used for driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in the first frame of the image information, and determining a scanning termination point for scanning the display area according to the target image;
and the non-field blanking scanning unit is used for setting the scanning end point as a scanning starting point, returning and executing the step of driving a scanning line in the display by using the scanning signal, scanning the display area according to a first frame of unscanned target image in the image information, and determining the scanning end point for scanning the display area according to the target image until the target image is the last frame of image in the image information.
Optionally, the line scanning unit is further configured to:
setting two end points of each data line to be scanned in the display area as a scanning starting point and a scanning ending point of line scanning respectively, wherein the scanning starting point of an odd line and the scanning starting point of an even line in each data line are distributed at different ends of the display area;
and driving a scanning line in the display by using the scanning signal according to a target image which is not scanned in the first frame of the image information, and sequentially scanning the data lines of the display area line by line from a scanning starting point to a scanning ending point of each data line until the line scanning of the last line in each data line is finished.
Optionally, the line scanning unit is further configured to:
setting two end points of each to-be-scanned data line of the display area in the display area as a scanning starting point and a scanning ending point of line scanning respectively, wherein the scanning starting point of each data line is located at the same end of the display area, the scanning ending point of each data line is located at the same end of the display area, and the scanning starting point and the scanning ending point are located at different ends of the display area;
and driving a scanning line in the display by using the scanning signal according to a target image which is not scanned in the first frame of the image information, and sequentially scanning the data lines of the display area line by line from a scanning starting point to a scanning ending point of each data line until the line scanning of the last line in each data line is finished.
In addition, an embodiment of the present invention further provides a computer-readable storage medium, where a display scan driver is stored on the computer-readable storage medium, and when the display scan driver is executed by a processor, a driving circuit for driving a display outputs a scan signal, where the scan signal is used to drive scan lines of the display to implement the operations in the display scanning method provided in the foregoing embodiment.
In addition, an embodiment of the present invention further provides a driving circuit, which is applied to a display, and the driving circuit outputs a scan signal according to image information to be displayed, where the scan signal is used to drive a scan line in the display to implement the operations in the display scanning method provided in the foregoing embodiments.
The embodiments of the device, the computer-readable storage medium, and the driving circuit of the present invention can refer to the embodiments of the display scanning method of the present invention, and are not described herein again.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity/action/object from another entity/action/object without necessarily requiring or implying any actual such relationship or order between such entities/actions/objects; the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising a," "8230," "8230," or "comprising" does not exclude the presence of other like elements in a process, method, article, or system comprising the element.
For the apparatus embodiment, since it is substantially similar to the method embodiment, it is described relatively simply, and reference may be made to some descriptions of the method embodiment for relevant points. The above-described apparatus embodiments are merely illustrative, in that elements described as separate components may or may not be physically separate. Some or all of the modules can be selected according to actual needs to achieve the purpose of the scheme of the invention. One of ordinary skill in the art can understand and implement without inventive effort.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the description of the foregoing embodiments, it is clear to those skilled in the art that the method of the foregoing embodiments may be implemented by software plus a necessary general hardware platform, and certainly may also be implemented by hardware, but in many cases, the former is a better implementation. Based on such understanding, the technical solution of the present invention may be substantially or partially embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the display scanning method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A display scanning method is applied to a driving circuit of a display, and comprises the following steps:
acquiring image information to be displayed and receiving a scanning signal output by a driving circuit of a display according to the image information;
driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in a first frame of the image information, and determining a scanning termination point for scanning the display area according to the target image;
setting the scanning end point as a scanning starting point, returning and executing the steps of driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in the first frame of the image information, and determining the scanning end point for scanning the display area according to the target image until the target image is the last frame of image in the image information.
2. The method of claim 1, wherein the step of driving scan lines in the display with the scan signals to scan the display area according to a target image in the image information that is not scanned for a first frame comprises:
setting two end points of each data line to be scanned in the display area as a scanning starting point and a scanning ending point of line scanning respectively, wherein the scanning starting point of an odd line and the scanning starting point of an even line in each data line are distributed at different ends of the display area;
and driving a scanning line in the display by using the scanning signal according to a target image which is not scanned in the first frame of the image information, and sequentially scanning the data lines of the display area line by line from a scanning starting point to a scanning ending point of each data line until the line scanning of the last line in each data line is finished.
3. The display scanning method of claim 2, wherein a row scanning direction of odd-numbered ones of the data lines is opposite to a row scanning direction of even-numbered ones of the data lines.
4. The method as claimed in claim 1, wherein said step of driving the scan lines in the display with the scan signal to scan the display area according to the target image which is not scanned in the first frame of the image information comprises:
setting two end points of each to-be-scanned data line of the display area in the display area as a scanning starting point and a scanning ending point of line scanning respectively, wherein the scanning starting point of each data line is located at the same end of the display area, the scanning ending point of each data line is located at the same end of the display area, and the scanning starting point and the scanning ending point are located at different ends of the display area;
and driving a scanning line in the display by using the scanning signal according to a target image which is not scanned in the first frame of the image information, and sequentially scanning the data lines of the display area line by line from a scanning starting point to a scanning ending point of each data line until the line scanning of the last line in each data line is finished.
5. The display scanning method of claim 4, wherein the line scanning direction of each of the data lines is the same.
6. A display scanning apparatus, comprising:
the data acquisition module is used for acquiring image information to be displayed and receiving a scanning signal output by a driving circuit of the display according to the image information;
the scanning driving module is used for driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in the first frame of the image information, and determining a scanning termination point for scanning the display area according to the target image;
and the cyclic execution module is used for setting the scanning end point as a scanning starting point, returning and executing the step of driving a scanning line in the display by using the scanning signal, scanning the display area according to a target image which is not scanned in the first frame of the image information, and determining the scanning end point for scanning the display area according to the target image until the target image is the last frame of image in the image information.
7. A terminal device, comprising a memory, a processor and a display scan driver program stored in the memory and operable on the processor, wherein when the display scan driver program is executed on the processor, the display scan driver program drives a display driver circuit to output scan signals for driving scan lines in the display to implement the steps of the display scanning method as claimed in any one of claims 1 to 5.
8. A computer readable storage medium, having a display scan driver program stored thereon, wherein when the display scan driver program is executed by a processor, a driving circuit for driving a display outputs a scan signal, and the scan signal is used for driving a scan line of the display to implement the steps of the display scan method according to any one of claims 1 to 5.
9. A driving circuit applied to a display, wherein the driving circuit outputs a scanning signal according to image information to be displayed, and the scanning signal is used for driving a scanning line in the display to realize the steps of the display scanning method according to any one of claims 1 to 5.
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