CN111354294A - Display panel, display method thereof and display device - Google Patents
Display panel, display method thereof and display device Download PDFInfo
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- CN111354294A CN111354294A CN202010279049.0A CN202010279049A CN111354294A CN 111354294 A CN111354294 A CN 111354294A CN 202010279049 A CN202010279049 A CN 202010279049A CN 111354294 A CN111354294 A CN 111354294A
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- 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
Abstract
The invention discloses a display panel, a display method and a display device thereof, wherein the display panel scans along the pixel row direction, and each frame of picture comprises a buffering time period and a display time period, so that one row of sub-pixels needs to be scanned completely for displaying, namely the required time is the duration of the display time period. In the display method provided by the invention, the duration T1 of the buffering time period and the duration T2 of the display time period satisfy the following conditions:
namely, the duration T1 of the buffering period is greater than the duration of scanning 16 columns of sub-pixels, while the duration T1 of the buffering period in the prior art is generally the duration of scanning 16 columns of sub-pixels, that is, the duration of the buffering period is increased, so that the duration of the display period is relatively reduced, the scanning time of each column of sub-pixels is reduced, and the problem of instant delay of the client in the process of rapidly sliding the screen is solved.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel, a display method thereof, and a display device.
Background
Currently, a wide variety of display products are ubiquitous in life. For a display screen with an imbalance ratio of length to width of the screen, for example, a display screen with a resolution of 560x1800 and an aspect ratio of 27:7, where the long side of the screen is in the column direction and the short side of the screen is in the row direction, the display screen scans along the pixel row direction, and the client displays the screen in the vertical screen mode, so that the display screen may have poor image quality, such as text smear, when the client slides the screen.
Disclosure of Invention
The embodiment of the invention provides a display panel, a display method and a display device thereof, which are used for solving the problem of poor image quality in the prior art.
According to the display method of the display panel, the display panel is provided with M rows of sub-pixels, the display panel scans along the pixel row direction, and each frame of picture comprises a buffering time period and a display time period; wherein the buffering time period is used for enabling the display signal to reach a preset waveform in advance before display;
the duration T1 of the buffering period and the duration T2 of the display period satisfy the following conditions:
wherein f is the frame refresh frequency of the display panel.
Optionally, in the display method provided by the embodiment of the invention, the time for scanning each column of sub-pixels is controlled between 8 μ s and 12 μ s.
Optionally, in the display method provided in the embodiment of the present invention, the buffering period includes a front buffering period before the display period and a rear buffering period after the display period;
the duration of the front buffering time period is greater than the duration of the rear buffering time period.
Optionally, in the display method provided in the embodiment of the present invention, a duration T11 of the front buffer time period and a duration T12 of the rear buffer time period satisfy the following conditions:
T11+T12＝T1；
optionally, in the display method provided in the embodiment of the present invention, the pre-buffering period includes a holding period and a preparation period;
the preparation period is between the holding period and the display period;
in the holding time period, the waveform of the display signal is the same as the waveform of the display signal in the post-buffering time period when the previous frame of picture is displayed;
in the preparation time period, the grid line scanning trigger signal in the display signal is triggered, so that the grid line scanning signal in the display signal reaches a preset waveform in advance.
Optionally, in the display method provided in the embodiment of the present invention, the duration of the preparation period is equal to
Correspondingly, the embodiment of the invention also provides a display panel, wherein the display panel is provided with N rows of sub-pixels multiplied by M columns of sub-pixels, N and M are integers, and N is larger than M;
the display panel adopts any one of the display methods provided by the embodiment of the invention to display.
Alternatively, in the display panel provided by the embodiment of the present invention,
optionally, in the display panel provided in the embodiment of the present invention, the display panel includes a display area and a frame area; the frame area is provided with a main driving circuit and a scanning driving circuit;
wherein the main driving circuit is used for controlling the scanning driving circuit and the display area;
the scanning driving circuit is used for sending scanning signals to the display area;
the main driving circuit is located on one side of the frame region extending along the column direction, and the scanning driving circuit is located on one side of the frame region extending along the row direction.
Correspondingly, the embodiment of the invention also provides a display device which comprises any one of the display panels provided by the embodiment of the invention.
The invention has the following beneficial effects:
according to the display panel, the display method and the display device provided by the embodiment of the invention, the display panel is scanned along the pixel row direction, and each frame of picture comprises the buffering time period and the display time period, so that one row of sub-pixels needs to be scanned completely when one row of sub-pixels is required to be displayed completely, namely the required time is the duration of the display time period. In the display method provided by the invention, the duration T1 of the buffering time period and the duration T2 of the display time period satisfy the following conditions:
namely, the duration T1 of the buffering period is greater than the duration of scanning 16 columns of sub-pixels, while the duration T1 of the buffering period in the prior art is generally the duration of scanning 16 columns of sub-pixels, that is, the duration of the buffering period is increased, so that the duration of the display period is relatively reduced, the scanning time of each column of sub-pixels is reduced, and the problem of instant delay of the client in the process of rapidly sliding the screen is solved.
Drawings
Fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a timing diagram illustrating a display method according to an embodiment of the present invention;
FIG. 3 is a second timing diagram illustrating a display method according to an embodiment of the present invention;
FIG. 4 is a partial timing diagram of a display method according to an embodiment of the present invention;
FIG. 5 is a partial timing diagram of a display method according to an embodiment of the present invention;
fig. 6 is a second schematic structural diagram of a display panel according to an embodiment of the invention.
Detailed Description
Analyzing the problem of poor image quality of the existing display screen, because the display screen is scanned along the row direction, a line-by-line scanning mode is adopted, each row of pixels needs to be completely displayed in one frame, taking the screen resolution as 560x1800 as an example, the time 1H for scanning one line of pixels is 1/90x (8+560+8) which is 19.7 mus, wherein 90 is the frame refresh frequency, 8+8 is a buffer (Dummy Blank) area, the main function of the method is fault tolerance, the waveform output by the equipment is adjusted, and the waveform distortion is prevented, so that the waveform entering the display area is a preset waveform in advance. In the prior art, the scanning time of each 1H is too long, so that the client terminal has instant delay in the process of rapidly sliding the screen, that is, poor image quality of text smear occurs.
In view of the above, embodiments of the present invention provide a display panel, a display method thereof and a display device. In order to make the aforementioned objects, features and advantages of the present invention comprehensible, the present invention is further described with reference to the accompanying drawings and examples. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their repetitive description will be omitted. The words expressing the position and direction described in the present invention are illustrated in the accompanying drawings, but may be changed as required and still be within the scope of the present invention. The drawings of the present invention are for illustrative purposes only and do not represent true scale.
It should be noted that in the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of ways different from those described herein and similar generalizations can be made by those skilled in the art without departing from the spirit of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed below. The description which follows is a preferred embodiment of the present application, but is made for the purpose of illustrating the general principles of the application and not for the purpose of limiting the scope of the application. The protection scope of the present application shall be subject to the definitions of the appended claims.
The following describes a display panel, a display method thereof, and a display device according to an embodiment of the present invention with reference to the accompanying drawings.
In the display method of the display panel according to the embodiment of the present invention, as shown in fig. 1, the display panel 1 has M rows of sub-pixels P1～PMThe display panel scans along the pixel row direction X, as shown in fig. 2, and each frame includes a buffering period and a display period; the buffer time period is used for enabling the display signal to reach a preset waveform in advance before display;
the duration T1 of the buffer period and the duration T2 of the display period satisfy the following conditions:
where f is the frame refresh frequency of the display panel, and 1H in FIG. 2 represents the time for scanning a row of sub-pixels, i.e.
In the display method of the display panel provided by the embodiment of the invention, the display panel is scanned along the pixel row direction, and each frame of picture comprises the buffering time period and the display time period, so that one row of sub-pixels needs to be scanned completely for displaying, that is, the required time is the duration of the display time period. In the display method provided by the invention, the duration T1 of the buffering time period and the duration T2 of the display time period satisfy the following conditions:
namely, the duration T1 of the buffering period is greater than the duration of scanning 16 columns of sub-pixels, while the duration T1 of the buffering period in the prior art is generally the duration of scanning 16 columns of sub-pixels, that is, the duration of the buffering period is increased, so that the duration of the display period is relatively reduced, the scanning time of each column of sub-pixels is reduced, and the problem of instant delay of the client in the process of rapidly sliding the screen is solved.
In addition, although the scanning time of each column of sub-pixels can be reduced by increasing the refresh frequency of the display panel, increasing the refresh frequency of the display panel requires more advanced technology and higher cost. The display method provided by the embodiment of the invention can be realized on the basis of not replacing the refresh frequency of the display panel, is easy to realize and has lower cost.
In the display method provided by the embodiment of the present invention, the scanning of the display panel along the pixel row direction means that the display panel is scanned along the pixel row direction when a client views the display panel for normal display.
In specific implementation, in the display method provided by the embodiment of the invention, since the refresh rate of the display panel is fixed, the total duration of the duration T1 of the buffer period and the duration T2 of the display period is fixed, the greater the increase of the duration T1 of the buffer period, the smaller the duration T2 of the display period becomes, and the smaller the scanning time of each column of sub-pixels is, so as to improve the instant delay problem of the client during fast sliding the screen, but the scanning time of each column of sub-pixels cannot be too short, and the too short scanning time will affect the display quality due to insufficient charging.
Therefore, optionally, in the display method provided by the embodiment of the present invention, when the time for scanning each column of sub-pixels is controlled to be between 8 μ s and 12 μ s, the problem of transient delay can be effectively avoided, for example, the time for scanning each column of sub-pixels is controlled to be 8 μ s, 8.5 μ s, 9, 5 μ s, 10 μ s, 10.5 μ s, 11 μ s, 11.5 μ s, or 12 μ s, and the like, which is not limited herein.
Optionally, in the display method provided in the embodiment of the present invention, as shown in fig. 3, the buffering period includes a front buffering period before the display period and a rear buffering period after the display period;
the duration T11 of the front buffer period is greater than the duration T12 of the rear buffer period. This is equivalent to increasing the fault-tolerant time, so that the display signal which reaches the preset waveform in advance is more stable.
Optionally, in the display method provided in the embodiment of the present invention, as shown in fig. 3, the duration T11 of the front buffer time period and the duration T12 of the rear buffer time period satisfy the following conditions: t11+ T12 ═ T1;
that is, in implementation, the duration of the post-buffering period is generally kept at 8H, where 1H is the time taken to scan a column of sub-pixels.
Optionally, in the display method provided in the embodiment of the present invention, the pre-buffering period includes a holding period and a preparation period;
the preparation period is between the holding period and the display period;
in the holding time period, the waveform of the display signal is the same as that of the display signal in the post-buffering time period in the previous frame;
in the preparation time period, the grid line scanning trigger signal in the display signal is triggered, so that the grid line scanning signal in the display signal reaches a preset waveform in advance.
In this embodiment, the display signal generally includes a scan signal, a clock signal, a data signal, etc., wherein the scan signal generally includes a gate line scan signal and a light emission control scan signal, which is not limited herein.
In particular implementation, in the display method provided by the embodiment of the invention, the duration of the preparation time period is generally equal to that of the preparation time period
And is not limited herein.
The display method provided by the embodiment of the invention is described by taking a display panel with the resolution of 560x1800, the aspect ratio of 27:7 and the frame refresh frequency of 90Hz as an example. Specifically, the time 1H for the display panel to scan one column of pixels in the prior art is 1/90x (8+560+8) ═ 19.7 μ s, and with the display method provided by the embodiment of the present invention, the duration of the buffer period is increased, specifically, the duration of the buffer period is increased to 656H, where the duration of the front buffer period is 648H, the duration of the rear buffer period is 8H, and the time 1H for the display panel to scan one column of pixels is 1/90x (560+656) ═ 9.1 μ s, that is, the 1H time is decreased from 19.7 μ s to 9.1 μ s, so that the column scan time is greatly reduced, the image quality defect (text smear) is significantly improved, and no new optical defect is introduced.
Specifically, the operation timing chart of the display panel is as shown in fig. 4 and 5, fig. 4 is a timing chart of a front buffer period and a display period, and fig. 5 is a timing chart of a display period and a rear buffer period. Among them, banks 1 to 648 are front buffer periods, rows 1 to Row1 are display periods, and banks 649 to 656 are back buffer periods. In banks 1 through 648, banks 1 through 642 are hold periods, and banks 643 through 648 are reserve periods. As shown in fig. 4, the high potential of the gate line scan trigger signal GSTV extends from the start position to Bank642, becomes low potential in Bank643 to Bank649, and then keeps high potential; the high and low potentials of the clock signal GCK/GCB are alternately kept unchanged; the high potential of the light emission control trigger signal ESTV extends from the initial position to the Row2 position, and then the low potential is kept unchanged; the high and low potential of the clock signal ECK/ECB are alternately kept unchanged; the high potential of the gating signal Mux1 extends from the initial position to the Row1 position, and the high potential and the low potential are kept alternately unchanged; the high potential of the gating signal Mux2 extends from the starting position to the Row1 position, and the high potential and the low potential are kept unchanged alternately.
Based on the same inventive concept, an embodiment of the present invention further provides a display panel, as shown in fig. 1, the display panel includes N rows of sub-pixels P1～PNM columns of sub-pixels P1～PMThe display panel performs display by adopting any one of the display methods provided by the embodiment of the invention. Since the principle of the display panel to solve the problem is similar to that of the display method, the implementation of the display panel can be referred to the implementation of the display method, and repeated details are not repeated.
According to the display panel provided by the embodiment of the invention, the display panel is scanned along the pixel row direction, and each frame of picture comprises the buffering time period and the display time period, so that one row of sub-pixels needs to be scanned completely for complete display, that is, the required time is the duration of the display time period. In the display method provided by the invention, the duration T1 of the buffering time period and the duration T2 of the display time period satisfy the following conditions:
that is, the duration T1 of the buffering period is greater than the duration of scanning 16 columns of sub-pixels, while the duration T1 of the buffering period in the prior art is generally the duration of scanning 16 columns of sub-pixels, that is, the duration of the buffering period is increased, so that the duration of the display period is relatively reduced, thereby reducing the scanning time of each column of sub-pixels, and further solving the problem that the client terminal appears in the process of rapidly sliding the screenThe problem of instantaneous delay.
In specific implementation, the display panel provided by the embodiment of the invention is particularly suitable for a display screen with a large length-width ratio value. Therefore, optionally, in the display panel provided by the embodiment of the present invention, wherein,
optionally, in the display panel provided in the embodiment of the present invention, as shown in fig. 6, the display panel includes a display area a1 and a bezel area a 2; wherein the frame area a2 is provided with a main drive circuit 01 and a scan drive circuit 02;
wherein the main driving circuit 01 is used for controlling the scanning driving circuit 02 and the display area a 1;
the scan driving circuit 02 is for sending a scan signal to the display area a 1;
the main driving circuit 01 is located on one side of the frame region a2 extending in the column direction Y, i.e., the long side of the display panel, and the scan driving circuit 02 is located on one side of the frame region a2 extending in the row direction X, i.e., the short side of the display panel.
In a specific implementation, the scan driving circuit may include a gate driving circuit for outputting the gate line scan signal and a light emission control driving circuit for outputting the light emission control scan signal.
Based on the same inventive concept, the embodiment of the invention further provides a display device, which comprises the display panel provided by the embodiment of the invention. Since the principle of the display device to solve the problem is similar to that of the display panel, the display device can be implemented by the display panel, and repeated descriptions are omitted.
In a specific implementation, the display device may be: any product or component with a display function, such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc., is not described herein in detail.
The display panel, the display method and the display device provided by the embodiment of the invention have the advantages that the display panel is arranged along the pixel rowsAnd scanning is carried out in the direction, and each frame of picture comprises a buffering time period and a display time period, so that one row of sub-pixels needs to be scanned completely for complete display, namely the required time is the duration of the display time period. In the display method provided by the invention, the duration T1 of the buffering time period and the duration T2 of the display time period satisfy the following conditions:
namely, the duration T1 of the buffering period is greater than the duration of scanning 16 columns of sub-pixels, while the duration T1 of the buffering period in the prior art is generally the duration of scanning 16 columns of sub-pixels, that is, the duration of the buffering period is increased, so that the duration of the display period is relatively reduced, the scanning time of each column of sub-pixels is reduced, and the problem of instant delay of the client in the process of rapidly sliding the screen is solved.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. The display method of the display panel is characterized in that the display panel is provided with M columns of sub-pixels, the display panel scans along the pixel row direction, and each frame of picture comprises a buffering time period and a display time period; wherein the buffering time period is used for enabling the display signal to reach a preset waveform in advance before display;
the duration T1 of the buffering period and the duration T2 of the display period satisfy the following conditions:
wherein f is the frame refresh frequency of the display panel.
2. The display method of claim 1, wherein the time for scanning each column of sub-pixels is controlled between 8 μ s and 12 μ s.
3. The display method according to claim 1 or 2, wherein the buffer period includes a front buffer period located before the display period and a rear buffer period located after the display period;
the duration of the front buffering time period is greater than the duration of the rear buffering time period.
4. The display method according to claim 3, wherein the duration T11 of the front buffer period and the duration T12 of the rear buffer period satisfy the following condition:
T11+T12＝T1；
5. the display method according to claim 4, wherein the pre-buffering period includes a holding period and a preparatory period;
the preparation period is between the holding period and the display period;
in the holding time period, the waveform of the display signal is the same as the waveform of the display signal in the post-buffering time period when the previous frame of picture is displayed;
in the preparation time period, the grid line scanning trigger signal in the display signal is triggered, so that the grid line scanning signal in the display signal reaches a preset waveform in advance.
6. The display method according to claim 5, wherein the duration of the preparatory period is equal to
7. A display panel comprising N rows by M columns of sub-pixels, wherein N and M are integers and N is greater than M; characterized in that the display panel is displayed by the display method according to any one of claims 1 to 6.
8. The display panel of claim 7,
9. the display panel according to claim 7, wherein the display panel includes a display area and a bezel area; the frame area is provided with a main driving circuit and a scanning driving circuit;
wherein the main driving circuit is used for controlling the scanning driving circuit and the display area;
the scanning driving circuit is used for sending scanning signals to the display area;
the main driving circuit is located on one side of the frame region extending along the column direction, and the scanning driving circuit is located on one side of the frame region extending along the row direction.
10. A display device characterized by comprising the display panel according to any one of claims 7 to 9.
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