CN114822391A - Display panel, information screen display method, device, storage medium and display device - Google Patents
Display panel, information screen display method, device, storage medium and display device Download PDFInfo
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
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- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
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Abstract
The application discloses a display panel, a message screen display method, a device, a storage medium and a display device. The display panel comprises a scanning signal control module, a driving chip and a plurality of light-emitting pixels; the driving chip is used for outputting effective data signals through a plurality of second data signal ends when the next image frame starts according to a plurality of first data signal ends for outputting the effective data signals currently in the information screen display state so as to control the display area in the information screen display state to move along the transverse direction; the driving chip is further used for determining a plurality of third data signal ends when the first shift register unit outputs scanning signals, and outputting effective data signals through the plurality of third data signal ends when the second shift register unit outputs scanning signals in a next image frame so as to control the display area of the information screen to move along the longitudinal direction in the display state. According to the embodiment of the application, the display area in the information screen display state can be controlled to move, so that the phenomenon that the luminous pixels generate afterimages due to long-time luminescence is avoided.
Description
Technical Field
The present application belongs to the field of display technologies, and in particular, to a display panel, a message screen display method, a device, a storage medium, and a display apparatus.
Background
Currently, a display panel is generally composed of a plurality of light emitting pixels arranged in an array, and the light emitting pixels include pixel circuits and light emitting elements. The pixel circuit is generally composed of a TFT (Thin Film Transistor) and a capacitor. The Light Emitting element may generally include an OLED (Organic Light-Emitting Diode) or other Light Emitting devices.
Because the TFTs in the pixel circuits have hysteresis, in the breath-screen state, if the light-emitting elements remain in the light-emitting state for a long time, the TFTs in the corresponding pixel circuits will cause image sticking on the display panel due to the hysteresis effect. And the long-time light emission also causes accelerated aging of the device, thereby affecting the display effect of the display panel.
Disclosure of Invention
The embodiment of the application provides a display panel, a message screen display method, a device, a storage medium and a display device, which can solve the technical problem that a residual image phenomenon is generated due to long-term light emission of pixels during message screen display.
In a first aspect, an embodiment of the present application provides a display panel, including:
the light-emitting pixels are arranged in an M-N array and comprise pixel circuits and light-emitting elements;
the scanning signal control module comprises M shift register units, and the scanning signal ends of the luminous pixels on the same row are connected with the corresponding shift register units;
the driving chip comprises N data signal output ends, and the data signal ends of the light-emitting pixels in the same column are respectively connected with the corresponding data signal output ends;
the driving chip is used for determining a plurality of corresponding second data signal ends according to a plurality of first data signal ends for currently outputting effective data signals in the information screen display state, and outputting the effective data signals through the plurality of second data signal ends when the next image frame starts so as to control the display area in the information screen display state to move along the transverse direction;
and the driving chip is further used for determining a plurality of third data signal ends for outputting effective data signals when the first shift register unit outputs scanning signals in the display state of the information screen, determining a corresponding second shift register unit according to the first shift register unit, and outputting the effective data signals through the plurality of third data signal ends when the second shift register unit outputs the scanning signals in the next image frame so as to control the display area in the display state of the information screen to move along the longitudinal direction.
In a second aspect, an embodiment of the present application provides a method for displaying a message screen, which is applied to the display panel, and the method includes:
acquiring a display area corresponding to the display content of the message screen in the display state of the message screen;
and moving the luminous pixels in the luminous state in the display area along a preset moving track according to a preset moving step length, wherein the preset moving step length is a pixel distance corresponding to the number of the preset pixels.
In a third aspect, an embodiment of the present application provides a message screen display device, where the message screen display device includes: a processor and a memory storing computer program instructions;
the processor, when executing the computer program instructions, implements the message screen display method as described above.
In a fourth aspect, embodiments of the present application provide a computer storage medium having computer program instructions stored thereon, where the computer program instructions, when executed by a processor, implement the information screen display method as above
In a fifth aspect, the present application provides a display device, which includes the above display panel.
Compared with the prior art, the display panel, the information screen display method, the information screen display device, the storage medium and the display device provided by the embodiment of the application can integrally shift a plurality of data signal ends of the output effective data signals in front and back different image frames through the driving chip in the information screen state, so as to realize the transverse movement of the display area in the front and back image frames. The driving chip can also adjust the corresponding shift register unit when the plurality of data signal ends output effective data signals in front and back different image frames so as to realize the longitudinal movement of the display area in the front and back image frames. Through the combination of transverse movement and longitudinal movement, the display area in the breath screen display state can be controlled to move, so that the long-time light emission of the same light-emitting pixels in the breath screen display state is avoided, and the afterimage phenomenon generated by the light-emitting pixels in the long-time light emission is eliminated. And the light-emitting time of the light-emitting pixels in the original display area can be reduced, and the aging of devices of the light-emitting pixels is delayed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present application, 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 panel according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating a lateral movement of a display area according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating a longitudinal movement of a display area according to an embodiment of the present application;
fig. 4 is a schematic flowchart of a message screen display method according to an embodiment of the present application;
FIG. 5 is a schematic diagram illustrating an area of a display area according to an embodiment of the present application;
fig. 6 is a schematic flow chart of a message screen display method according to another embodiment of the present application;
fig. 7 is a schematic diagram illustrating a display area moving along a predetermined country moving track according to an embodiment of the present application;
fig. 8 is a schematic hardware structure diagram of a message screen display device according to an embodiment of the present application;
fig. 9 is a schematic structural diagram of a display device according to an embodiment of the present application.
In the drawings:
10. a light-emitting pixel; 11. a light emitting element; 20. a driving chip; 30. and a scanning signal control module.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are intended to be illustrative only and are not intended to be limiting. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The embodiments will be described in detail below with reference to the accompanying drawings.
Currently, a display panel is generally composed of a plurality of light emitting pixels arranged in an array, and the light emitting pixels include pixel circuits and light emitting elements. The pixel circuit is generally composed of a TFT (Thin Film Transistor) and a capacitor. The Light Emitting element may include an OLED (Organic Light-Emitting Diode) or other Light Emitting device.
Since the TFTs in the pixel circuits have hysteresis, in the breath-hold state, if the light-emitting element keeps emitting light for a long time, the TFTs in the corresponding pixel circuits will generate image sticking on the display panel due to the hysteresis.
The existing solution for improving the image sticking phenomenon is mainly to increase the duty ratio of the light emitting control signal and increase the driving current of the light emitting pixel at the same time, so as to reduce the image sticking phenomenon under the condition of small brightness change. However, the above-mentioned method of adjusting the duty ratio and the driving current of the light-emitting control signal can only reduce the afterimage phenomenon to a certain extent, and the reduction effect is relatively limited. In the use process of the display panel, the long-time light emission of the light-emitting pixels can also cause the accelerated aging of devices such as the TFT and the like, thereby influencing the actual display effect of the display panel.
In order to solve the foregoing technical problem, embodiments of the present application provide a display panel, a method and an apparatus for displaying a message screen, a storage medium, and a display device. The following first describes a display panel provided in an embodiment of the present application.
Fig. 1 shows a schematic structural diagram of a display panel according to an embodiment of the present application. The display panel includes a plurality of light emitting pixels 10, a scan signal control module 30, and a driving chip 20.
The plurality of light emitting pixels 10 are arranged in an M × N array, and the light emitting pixels 10 include pixel circuits and light emitting elements 11, and the pixel circuits can supply a driving current to the light emitting elements 11 under the driving of a scan signal and a data signal, so that the light emitting elements 11 emit light under the driving current.
The scan signal control module 30 includes M shift register units, each shift register unit corresponds to one of the M rows of light-emitting pixels 10, and the scan signal terminals of the light-emitting pixels 10 in the same row are electrically connected to the same corresponding shift register unit.
The driving chip 20 includes N data signal output terminals, each data signal output terminal corresponds to one of the N rows of light-emitting pixels 10, and the data signal terminals of the light-emitting pixels 10 in the same row are connected to the same corresponding data signal output terminal.
The scanning signal control module 30 sequentially provides a corresponding scanning signal to each row of the light-emitting pixels 10 in a progressive scanning manner. The driving chip 20 can select a part of the data signal output terminals to provide valid data signals under the scanning signals of each row, so that a part of the light-emitting pixels 10 in the row of the light-emitting pixels 10 corresponding to the part of the data signal output terminals emit light.
When the display panel is in the information screen display state, the driving chip 20 may determine a plurality of corresponding second data signal terminals according to a plurality of first data signal terminals currently outputting valid data signals, and output the valid data signals through the plurality of second data signal terminals when a next image frame starts, so that a display area in the information screen display state when the next image frame starts is changed from a first display area corresponding to the plurality of first data signal terminals to a second display area corresponding to the plurality of second data signal terminals, thereby implementing the lateral movement of the display area.
It can be understood that, for example, with the K-th row of the M rows of the light-emitting pixels 10, when the display panel is in the display state of the information screen, the driving chip 20 may determine a plurality of first data signal terminals outputting valid data signals from the N data signal terminals according to the scanning signals output by the K-th shift register unit corresponding to the K-th row of the light-emitting pixels 10 in the scanning signals, for example, when the N data signal terminals are numbered from left to right, the plurality of first data signal terminals may be the 10 data signal terminals numbered 301-310. From the 10 data signal terminals, corresponding 10 second data signal terminals can be determined, for example, 315-324. And continuing to scan the M shift register units line by line until the last shift register unit outputs a scanning signal, and ending the image frame. When the next image frame starts, the M shift register units continue to output the scan signals line by line from the first shift register unit, and when the K-th shift register unit outputs the scan signal, the driving chip 20 may control the 10 second data signal terminals of the numbers 301 and 310 to output the valid data signals. The light emitting pixels 10 of the K-th row in the image frame are shifted laterally to the right by 14 pixels compared to the previous image frame.
Taking the number of the data signal terminal as an example, when the number of the second data signal terminal is greater than the number of the corresponding first data signal terminal, the display area in the display state of the information screen is equivalent to move horizontally to the right; when the number of the second data signal terminal is smaller than the number of the corresponding first data signal terminal, the display area in the display state of the information screen is equivalent to move transversely leftwards. The horizontal movement of the display area can be realized by adjusting the data signal end outputting the effective data signal in the next image frame.
As shown in fig. 2, the left side of the figure is the position of the display area in the previous image frame, and the right side of the figure is the position of the display area in the next image frame. In an image frame, when the shift register unit outputs scanning signals line by line, the driving chip 20 converts effective data signals from a plurality of first data signal terminals corresponding to the line in the previous image frame into a plurality of second data signal terminals, i.e. the display area in the image frame can move laterally compared with the display area in the previous image frame.
The driving chip 20 may further determine a plurality of third data signal terminals for outputting valid data signals when the first shift register unit outputs the scan signals in the display state of the information screen. And determining a corresponding second shift register unit according to the first shift register unit. As shown in fig. 3, the left of the figure is the position of the display area in the previous image frame, and the right of the figure is the position of the display area in the next image frame. When the second shift register unit outputs scanning signals in the next image frame, effective data signals are output through the plurality of third data signal terminals, so that a plurality of pixels emitting light in the luminescent pixel 10 row corresponding to the first shift register unit in the previous image frame are changed into a plurality of pixels emitting light in the luminescent pixel 10 row corresponding to the second shift register unit in the next image frame, and therefore the longitudinal movement of the luminescent pixel 10 row is achieved.
It is understood that, in one image frame, there may be a plurality of first shift register units, and the driving chip 20 may control a plurality of third data signal terminals corresponding to the first shift register units to output valid data signals when the corresponding second shift register units in the next image frame output scanning signals according to the second shift register units corresponding to each first shift register unit. That is, each line of the light emitting pixels 10 in the previous image frame is longitudinally moved, so that the display area in the previous image frame is longitudinally moved as a whole in the next image frame.
When the shifting register units are numbered from top to bottom, if the number of each first shifting register unit is smaller than the number of the corresponding second shifting register unit, the shifting register units indicate that the display area in the next image frame moves downwards along the longitudinal direction; and when the number of each first shift register unit is greater than that of the corresponding second shift register unit, the display area in the next image frame is moved upwards along the longitudinal direction.
It can be understood that, in the information screen display state, if the driving chip 20 determines a plurality of corresponding second data signal terminals only according to a plurality of first data signal terminals currently outputting valid data signals, and controls the plurality of second data signal terminals to output valid data signals when the same shift register unit of the next image frame outputs scanning signals, the display area in the next image frame moves laterally compared to the display area of the previous image frame.
If the driving chip 20 determines the second shift register unit only according to the first shift register unit and outputs the valid data signal through the plurality of third data signal terminals when the second shift register unit outputs the scan signal in the next image frame, the display area in the next image frame is moved longitudinally compared to the display area in the previous image frame.
If the driving chip 20 determines the second shift register unit according to the first shift register unit, and then determines a plurality of corresponding fourth data signal terminals according to the plurality of third data signal terminals, and outputs valid data signals through the plurality of fourth data signal terminals when the second shift register unit outputs scanning signals in the next image frame, the display area in the next image frame is moved laterally and longitudinally, i.e., moved obliquely, compared with the display area in the previous image frame.
When the driving chip 20 controls the display area to move obliquely, the adjustment of the transverse moving distance can be realized by setting the number of the data signal ends spaced between the first data signal end and the corresponding second data signal end; the adjustment of the longitudinal moving distance can be realized by setting the number of the shift register units at intervals between the first shift register unit and the second shift register unit corresponding to the first shift register unit.
It should be noted that, in the display state of the message screen, the display panel usually displays data information such as current time, date, remaining power, message reminder, and the like in a partial display area. That is, in the information screen display state, the display area of the display panel is small, the display area is mainly located around the center area of the display panel, and data information is generally displayed in a character and number manner. Compared with the normal display state, the number of the luminous pixels 10 required to be lightened in the information screen display state is less, so that the luminous power consumption can be saved, and long-time information screen display can be realized.
The driving chip 20 may control different data signal terminals to output valid data signals in different image frames, or control the data signal terminals to change their corresponding shift register units when outputting valid data signals, so as to implement the horizontal movement or the vertical movement of the display areas in different image frames. When the display panel keeps the display state of the information screen for a long time, the display area can be controlled to move at certain time intervals, so that the afterimage phenomenon and the device aging phenomenon caused by the fact that the same light-emitting pixels 10 keep the long-time light-emitting state are avoided.
In this embodiment, the driving chip 20 may output valid data signals through different data signal terminals in different front and back image frames in the display state of the information screen, so as to implement the lateral movement of the display area in the front and back image frames. The driving chip 20 may also output valid data signals through the same multiple data signal terminals in the front and back different image frames, but adjust the shift register units corresponding to the multiple data signal terminals to implement the longitudinal movement of the display area in the front and back image frames. Through the combination of the transverse movement and the longitudinal movement, the display area in the breath screen display state can be controlled to periodically move, so that the long-time light emission of the same light-emitting pixels 10 in the breath screen display state is avoided, and the afterimage phenomenon generated by the long-time light emission of the light-emitting pixels 10 is eliminated. And the light-emitting time of part of the light-emitting pixels 10 in the original display area can be reduced, and the device aging of the part of the light-emitting pixels 10 can be inhibited.
In some embodiments, the first data signal terminals and the corresponding second data signal terminals are separated by a first preset number of data signal terminals.
When the first data signal end in the previous image frame outputs the valid data signal and the corresponding second data signal end in the next image frame outputs the valid data signal, it indicates that the light-emitting pixel 10 corresponding to the first data signal end in the previous image frame emits light and the light-emitting pixel 10 corresponding to the second data signal end in the next image frame emits light. I.e. the pixels emitting light in the front and back image frames are shifted laterally. It will be appreciated that the step size in which the light-emitting pixel 10 is moved laterally is the pixel distance separating two pixels emitting light before and after.
Since the N data signal output terminals of the driving chip 20 correspond to the N rows of light-emitting pixels 10 one by one, the number of pixels spaced between two pixels emitting light before and after is the same as the number of data signal terminals spaced between the first data signal terminal and the second data signal terminal. The transverse movement of the light-emitting pixels 10 can be realized by setting the data signal ends spaced between each first data signal end and the corresponding second data signal end to keep a first preset number, and the transverse movement step length of the light-emitting pixels 10 in the previous and next image frames is the product of the first preset number and the distance between the adjacent pixel columns.
Similarly, in the previous image frame, when the first shift register unit outputs the scan signal, the effective data signals are output through the plurality of third data signal terminals, and in the next image frame, when the second shift register unit outputs the scan signal, the effective data signals are output through the plurality of third data signal terminals, which indicates that the plurality of light emitting pixels 10 in the pixel row corresponding to the first shift register unit in the previous image frame move to the pixel row corresponding to the second shift register unit in the next image frame to emit light. I.e. the longitudinal movement of the light-emitting pixels 10 in the preceding and following image frames. At this time, the step length of the longitudinal movement of the light emitting pixel 10 is the pixel distance between the pixel row corresponding to the first shift register unit and the pixel row corresponding to the second shift register unit.
The longitudinal movement of the light-emitting pixels 10 can be realized by setting the number of the shift register units, which are separated from the quality inspection of the corresponding second shift register unit, of the first shift register unit to be a second preset number, and the longitudinal movement step length of the light-emitting pixels 10 in the front and rear image frames is the product of the second preset number and the distance between the adjacent pixel rows.
In some embodiments, the first preset number and the second preset number may be set to the same value. Since the distance between adjacent pixel rows and the distance between adjacent pixel columns in the display panel are generally consistent. When the first preset number is equal to the second preset number, it means that the first step length of the driving chip 20 controlling the display area to move laterally is equal to or closer to the second step length of the driving chip 20 controlling the display area to move longitudinally.
Taking the kth row of the M rows of the light-emitting pixels 10 as an example, when the display panel is in the display state of the information screen, the driving chip 20 may determine a plurality of first data signal terminals outputting valid data signals from the N data signal terminals according to the kth shift register unit in the scanning signal corresponding to the kth row of the light-emitting pixels 10, for example, when the N data signal terminals are numbered from left to right, the plurality of first data signal terminals may be the 10 data signal terminals numbered 301 and 310.
If the light emitting pixels 10 in the pixel row are controlled to move laterally in the next image frame, 10 corresponding second data signal terminals may be determined according to the 10 data signal terminals, for example, the first data signal terminal is X-1 data signal terminals away from the second data signal terminal, and the 10 corresponding second data signal terminals may be (301+ X) - (324+ X). At the beginning of the next image frame, the M shift register units continue outputting the scan signals line by line from the first shift register unit, and when the K-th shift register unit outputs the scan signal, the driving chip 20 may control the 10 second data signal terminals encoding (301+ X) - (324+ X) to output the valid data signals. The step size of this lateral shift is the lateral width of X pixels.
If the light-emitting pixels 10 in the pixel row are controlled to move longitudinally in the next image frame, the kth shift register unit may be used as the first shift register unit, and the second shift register units corresponding to the 10 data signal terminals are determined. For example, the second shift register unit may be a K + Y-th shift register unit. When the next image frame starts, the M shift register units continue to output the scan signals line by line from the first shift register unit, and when the K + Y shift register units output the scan signals, the driving chip 20 can control the 10 second data signal terminals with the numbers 301 and 310 to output the valid data signals. The step size of this longitudinal movement is the longitudinal width of Y pixels.
For each light-emitting pixel 10 in one image frame, the light-emitting position of the light-emitting pixel 10 is moved laterally, longitudinally, or obliquely in the next image frame. Therefore, the whole transverse movement, the whole longitudinal movement or the whole oblique movement of all the display areas in the image frame in the next image frame can be realized.
In some embodiments, the driving chip 20 may control the display area to move along the horizontal direction or the vertical direction after the light-emitting pixels 10 in the display area emit light for a period of time in the display state of the information screen, so as to change the positions of the light-emitting pixels 10, thereby avoiding the light-emitting pixels 10 emitting light for too long. When the display area moves away from the original display area for multiple times, the display area can move continuously along the same track or a different track as the original display area, so as to approach the original display area again.
It will be appreciated that the data information in the displayed state of the message screen is usually displayed near the central region of the display panel for easy viewing by the user. In order to avoid that the display area moves to the edge area of the display panel in the process of continuously moving to influence the browsing of the user, the movable range of the display area in the display state of the message screen can be set in the display area. When the display area moves transversely or longitudinally to reach the boundary of the movable range, the display area cannot move outwards continuously, and therefore the display area is prevented from moving to the edge area of the display panel. For example, when the display area moves laterally rightward a plurality of times to reach the boundary of the movable range, the display area cannot continue moving laterally rightward, and can only move laterally leftward or longitudinally.
The embodiment of the application also provides a message screen display method which is applied to the display panel in the embodiment. Fig. 4 is a flowchart illustrating a method for displaying a message screen according to an embodiment of the present application. The method comprises the following steps:
s410, in the display state of the message screen, acquiring a display area corresponding to the display content of the message screen;
and S420, moving the luminous pixels in the luminous state in the display area along a preset moving track according to a preset moving step length, wherein the preset moving step length is a pixel distance corresponding to the number of the preset pixels.
In this embodiment, the display panel may acquire the display area corresponding to the display content of the message screen in the display state of the message screen. And moving the luminous pixels in the display area according to a preset moving track and a preset moving step length. In the process of moving the entire display area, the light-emitting pixels in the display area before the movement stop emitting light, and the light-emitting pixels in the display area after the movement start emitting light. The long-time light emission of the same light-emitting pixels can be avoided by moving the display area, so that the afterimage phenomenon caused by the long-time light emission of the light-emitting pixels is eliminated. And the different light-emitting pixels can be controlled to emit light through the movement of the display area so as to display the display content of the message screen, so that the aging of parts of the light-emitting pixels is avoided.
In S410, the driving chip in the display panel may output a plurality of data signal terminals of the valid data signal according to the scan signal output by the different shift register units when the driving chip outputs the scan signal in the display state of the information screen, and determine the display area corresponding to the display content of the information screen in the display state of the information screen.
For example, in a certain image frame, when the a-th shift register unit outputs a scanning signal, the driving chip starts to output a valid data signal through the data signal terminal; after the b-th shift register unit outputs the scanning signal, the valid data signal is not output through the data signal end any more. The upper and lower edges of the display area are a pixel row and b pixel row, respectively. And the driving chip outputs the data signal end with the minimum serial number of the effective data signals in the image frame as c, the data signal end with the maximum serial number as d, and the left edge and the right edge of the display area are respectively a c pixel column and a d pixel column. The display area corresponding to the display content of the display panel in the information screen display state may be a rectangular area formed by an a pixel row, a b pixel row, a c pixel column and a d pixel column. Referring to fig. 5, when the display area is a rectangular area, the pixel coordinates of point a are (x _ sta, y _ sta), the pixel coordinates of point B are (x _ end, y _ end), point a is located at the upper edge a pixel row and the left edge c pixel column of the display area, and point B is located at the lower edge B pixel row and the right edge d pixel column of the display area. The horizontal width Xsize of the display area is x _ end-x _ sta, and the vertical width Ysize is y _ end-y _ sta. The size of the display area may remain unchanged during the movement of the display area. It is to be understood that the display area may also be a polygon other than a rectangle, which is not limited herein.
In S420, after the driving chip of the display panel determines the display area corresponding to the information display content, the light-emitting pixels in the light-emitting state in the display area may emit light for a period of time, and the light-emitting positions of the light-emitting pixels are moved integrally by adjusting the position of the data signal terminal or adjusting the time for outputting the effective data signal.
The driving chip can control the display area to move for multiple times according to a preset moving track, and the preset moving track can also comprise a preset moving step length of each movement. The driving chip controls the display area to move for multiple times according to the preset moving track and the preset moving step length, so that the display area can move according to the preset moving track. The preset moving step may be a pixel distance corresponding to the preset number of pixels. For example, when the display area is moved horizontally or vertically, the preset moving step is a pixel distance corresponding to the number of pixels between the positions of the light-emitting pixels in the front and rear image frames.
After each movement of the display area, the light-emitting pixels in the display area before the movement may stop emitting light, and the light-emitting pixels in the display area after the movement may start emitting light. The display area is controlled to move continuously, and the position of the pixel for emitting light can be changed continuously, so that the phenomenon of afterimage and the phenomenon of aging of the light-emitting element caused by long-term light emission of the light-emitting pixel due to the fact that the display area is fixed are avoided.
As an alternative embodiment, referring to fig. 6, the step S420 may include:
s610, starting from the starting point, moving the light-emitting pixels in the light-emitting state in the display area along the first direction and the second direction according to a preset moving step length, so that the light-emitting pixels in the light-emitting state in the display area move to the end point of the preset moving track.
In this embodiment, the display area may be alternately moved in the first direction and the second direction from the start point to reach a middle point of the preset movement trajectory. The middle point is a point with the largest distance from the starting point in the preset moving track. After the display area moves to the middle point, the display area may continue to move alternately in the first direction and the second direction to move the display area from the middle point to the end point. When the display area moves from the middle point to the end point, the entire display area gradually approaches the start point.
In S610, before the movement of the display area is not started, the center point of the display area may be used as a starting point of the preset movement track. The driving chip can move the light-emitting pixels in the light-emitting state in the display area by adjusting the data signal output end for outputting the effective signal. The driving chip can control the light-emitting pixels to move along the first direction or move along the second direction, and the moving distance of the display area is the preset moving step length when the light-emitting pixels move each time.
Starting from the starting point, the driving chip can control the light-emitting pixels in the display area to move alternately along the first direction and the second direction, so that the central point of the display area moves along a preset moving track from the starting point. After the display area is moved for a plurality of times, the central point of the display area can be moved from the starting point to the end point to complete the preset moving track. The first direction and the second direction are both directions in a plane of the display panel, and the first direction is intersected with the second direction, namely the first direction is not parallel to the second direction. For example, the first direction may be a lateral direction and the second direction may be a longitudinal direction.
As an alternative embodiment, the starting point and the ending point in the preset moving track may be at the same position, that is, the display area may return to the starting point after moving from the starting point along the preset moving track for multiple times.
Because the preset moving step length of the display area in each moving process is small, when the display area moves, a user cannot easily perceive that the display area moves, and can browse the information screen display content displayed in the display area rapidly, so that corresponding data information is obtained.
As an alternative embodiment, the preset moving track may include a plurality of preset moving sub-tracks. In each preset moving sub-track, the center point of the display area moves from the starting point to the ending point of the preset moving sub-track, and the starting point and the ending point may be at the same position. That is, in each preset movement sub-trajectory, the display area returns to the original position after performing a plurality of movements.
In the plurality of preset mobile sub-trajectories, the first path points of any two mobile sub-trajectories do not coincide. In the preset moving sub-track, the central point of the display area passes through a plurality of path points between the starting point and the ending point. The first path point is a first path point reached by the central point of the display area when the central point moves from the starting point. When the first path points of any two moving sub-tracks do not coincide, the first step in different preset moving sub-tracks is shown to leave the starting point along different directions respectively.
And after the driving chip controls the display area to move according to each preset moving sub-track, the moving process of the preset moving track is completed.
As an alternative, the first direction may be a transverse direction, and the second direction may be a longitudinal direction. The predetermined moving trajectory may be a rectangle formed from a start point to an end point through a middle point.
Referring to fig. 7, the starting point and the ending point of the display area are positions 5, and the preset moving track includes four sub-tracks, which are sub-track 1, sub-track 2, sub-track 3, and sub-track 4.
In the sub-track 1, the display area can move one step to the left along a first direction, namely the transverse direction, according to a preset moving step length to reach a position 4; one step up in the longitudinal direction to position 1; one step to the right in the transverse direction, position 2; and then further down in the longitudinal direction to position 5. That is, in sub-track 1, the display area may move along sub-track 1 starting from position 4 and finally returning to position 5.
Likewise, in sub-track 2, the display area may start at position 5, pass through positions 2, 3, 6, and finally return to position 5; in the sub-track 3, the display area may take the position 5 as a starting point, sequentially pass through the position 6, the position 9, the position 8 and finally return to the position 5; in sub-track 4, the display area may start at position 5, pass through position 8, position 7, position 4, and finally return to position 5.
The preset moving track may include the sub-tracks 1-4, and the moving process of the preset moving track is completed after the display area completes moving along the sub-tracks 1-4.
In the above embodiment, the display area moves by one step in each sub-track along the upward, downward, leftward and rightward directions, and the step length of each step movement is the pixel distance corresponding to the preset number of pixels. I.e. the display area is moved four steps in each sub-track along a preset movement step. If each sub-track is taken as the minimum movement unit, the minimum movement unit is composed of 4 positions of 2 × 2. Moving from the starting point to the ending point in each minimum mobile unit requires 4 steps to be completed. The complete preset movement track is composed of 4 minimum movement units, and sixteen steps of movement along the preset movement step length are required for completing the preset movement track.
It is to be understood that, when the movable unit of the display area is divided into 3 × 3 for a total of 9 positions according to the above-described embodiment, the start point in the preset movement trajectory may be set to the position 5, i.e., the center point among the plurality of positions. If the movable elements in the display area are divided into 5 × 5, and there are 25 positions, the starting point in the preset moving track may be set as the center point.
It is understood that if the movable unit of the display area is divided into 4 × 4, 16 positions, the center point thereof does not correspond to any position. Therefore, in general, when the movable unit of the display region is set, it may be divided into i × i positions, and i may be set to an odd number.
As an optional embodiment, the display content of the message screen may be text information content, and the preset number of pixels corresponding to the preset moving step length in each moving process of the display area may be set to be greater than or equal to the number of pixels corresponding to the stroke width of a text stroke in the text information content.
Taking the word "ten" as an example, when the content of the text information is displayed in the display state of the message screen, the "ten" includes strokes, i.e. a horizontal stroke and a vertical stroke, and the corresponding stroke width of a horizontal stroke in the display panel can usually cover a plurality of pixel rows. By setting the number of the preset pixels corresponding to the preset moving step length to be larger than or equal to the number of the pixel rows covered by the horizontal stroke width, the luminous pixels in the original plurality of pixel rows stop emitting light after the display area moves upwards or downwards, and the luminous pixels in the new plurality of pixel rows start emitting light. Therefore, the condition that the pixel rows keep the light-emitting state before and after the movement of the display area is avoided, and the light-emitting time of the pixels is reduced.
Likewise, for stroke-one-vertical, its corresponding stroke width may typically cover several pixel columns. After the display area moves to the left or right, the light-emitting pixels in the original pixel columns stop emitting light, and the light-emitting pixels in the new pixel columns start emitting light.
After the number of pixels corresponding to the preset moving step length and the number of moving steps of the display area in the first direction or the second direction are determined according to the stroke width of the character strokes, the number of pixels corresponding to the preset moving step length and the number of moving steps of the display area in the first direction or the second direction can be stored in a storage chip of the display panel. The Memory chip may be any one of a coded Flash Memory (Flash IC), a Random Access Memory (RAM), a Synchronous Dynamic Random Access Memory (SDRAM), or a Double Data Rate SDRAM (DDR).
It can be understood that the number of pixels corresponding to the preset moving step and the number of moving steps in the sub-track along the first direction or the second direction at each time may be stored in the storage chip in the form of 4-bit data, and a 1Byte is formed by two 4-bit data, so that the driving chip reads Byte data and controls the display area to move according to the preset moving step and the preset moving step.
Fig. 8 shows a hardware structure diagram of a message screen display device provided in an embodiment of the present application.
The on-screen display device may include a processor 801 and a memory 802 that stores computer program instructions.
Specifically, the processor 801 may include a Central Processing Unit (CPU), or an Application Specific Integrated Circuit (ASIC), or may be configured to implement one or more Integrated circuits of the embodiments of the present Application.
The memory may include Read Only Memory (ROM), Random Access Memory (RAM), magnetic disk storage media devices, optical storage media devices, flash memory devices, electrical, optical, or other physical/tangible memory storage devices. Thus, in general, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., memory devices) encoded with software comprising computer-executable instructions and when the software is executed (e.g., by one or more processors), it is operable to perform operations described with reference to the methods according to an aspect of the present disclosure.
The processor 801 reads and executes the computer program instructions stored in the memory 802 to implement any of the message screen display methods in the above embodiments.
In one example, the message screen display device may also include a communication interface 803 and a bus 810. As shown in fig. 8, the processor 801, the memory 802, and the communication interface 803 are connected via a bus 810 to complete communication therebetween.
The communication interface 803 is mainly used for implementing communication between modules, apparatuses, units and/or devices in the embodiments of the present application.
The message screen display device may be based on the above embodiments, so as to implement the message screen display method described in fig. 4 and fig. 6.
In addition, in combination with the information screen display method in the foregoing embodiments, the embodiments of the present application may provide a computer storage medium to implement. The computer storage medium having computer program instructions stored thereon; the computer program instructions, when executed by a processor, implement any of the above-described embodiments of the message screen display method.
An embodiment of the present application further provides a display device, please refer to fig. 9, where the display device may be a PC, a television, a display, a mobile terminal, a tablet computer, a wearable device, and the like, and the display device may include the display panel provided in the embodiment of the present application.
It is to be understood that the present application is not limited to the particular arrangements and instrumentality described above and shown in the attached drawings. A detailed description of known methods is omitted herein for the sake of brevity. In the above embodiments, several specific steps are described and shown as examples. However, the method processes of the present application are not limited to the specific steps described and illustrated, and those skilled in the art can make various changes, modifications, and additions or change the order between the steps after comprehending the spirit of the present application.
The functional blocks shown in the above structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
The functional blocks shown in the above-described structural block diagrams may be implemented as hardware, software, firmware, or a combination thereof. When implemented in hardware, it may be, for example, an electronic circuit, an Application Specific Integrated Circuit (ASIC), suitable firmware, plug-in, function card, or the like. When implemented in software, the elements of the present application are the programs or code segments used to perform the required tasks. The program or code segments may be stored in a machine-readable medium or transmitted by a data signal carried in a carrier wave over a transmission medium or a communication link. A "machine-readable medium" may include any medium that can store or transfer information. Examples of a machine-readable medium include electronic circuits, semiconductor memory devices, ROM, flash memory, Erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, fiber optic media, Radio Frequency (RF) links, and so forth. The code segments may be downloaded via computer networks such as the internet, intranet, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus 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 apparatus.
The principles and embodiments of the present application are explained herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present application. It should be noted that there are no specific structures in the above description, and it will be apparent to those skilled in the art that various modifications, decorations, or changes can be made without departing from the principle of the present application, and the technical features can be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the present invention using its spirit and scope, as defined by the claims, may be directed to other uses and embodiments.
Claims (12)
1. A display panel, comprising:
a plurality of light emitting pixels arranged in an M x N array, the light emitting pixels including pixel circuits and light emitting elements;
the scanning signal control module comprises M shift register units, and the scanning signal ends of the luminous pixels on the same row are connected with the corresponding shift register units;
the driving chip comprises N data signal output ends, and the data signal ends of the light-emitting pixels in the same column are respectively connected with the corresponding data signal output ends;
the driving chip is used for determining a plurality of corresponding second data signal ends according to a plurality of first data signal ends which currently output effective data signals in the information screen display state, and outputting the effective data signals through the plurality of second data signal ends when the next image frame starts so as to control the display area in the information screen display state to move along the transverse direction;
the driving chip is further configured to determine a plurality of third data signal terminals for outputting valid data signals when the first shift register unit outputs scanning signals in a screen display state, determine a corresponding second shift register unit according to the first shift register unit, and output the valid data signals through the plurality of third data signal terminals when the second shift register unit outputs scanning signals in a next image frame, so as to control the display area in the screen display state to move along the longitudinal direction.
2. The display panel according to claim 1, wherein the first data signal terminals and the corresponding second data signal terminals are separated by a first preset number of data signal terminals;
and a second preset number of shift register units are arranged between the first shift register unit and the corresponding second shift register unit.
3. The display panel according to claim 2, wherein the first preset number of values is equal to the second preset number of values.
4. A breath screen display method, applied to the display panel according to any one of claims 1 to 3, the method comprising:
acquiring a display area corresponding to the display content of the message screen in the display state of the message screen;
and moving the luminous pixels in the luminous state in the display area along a preset moving track according to a preset moving step length, wherein the preset moving step length is a pixel distance corresponding to the number of the preset pixels.
5. The message screen display method according to claim 4, wherein the moving the light-emitting pixels in the light-emitting state in the display area along a preset moving track according to a preset moving step comprises:
and starting from the starting point, alternately moving the luminous pixels in the luminous state in the display area along a first direction and a second direction according to a preset moving step length so as to move the luminous pixels in the luminous state in the display area to the end point of the preset moving track.
6. The message screen display method of claim 5, wherein the starting point and the ending point of the preset movement track are at the same position.
7. The message screen display method according to claim 6, wherein the preset moving track comprises a plurality of preset moving sub-tracks, a starting point and an end point of each preset moving sub-track are at the same position, a first path point of any two preset moving sub-tracks does not coincide, and the first path point is a first path point after the starting point in the preset moving sub-tracks.
8. The message screen display method of claim 7, wherein the first direction is a horizontal direction, the second direction is a vertical direction, and the predetermined movement sub-trajectory is a rectangle formed from the starting point to the ending point.
9. The message screen display method of claim 4, wherein the message screen display content is text information content, and the number of the preset pixels corresponding to the preset moving step is greater than or equal to the number of the pixels corresponding to the stroke width of the text stroke in the text information content.
10. A message screen display device, the message screen display device comprising: a processor and a memory storing computer program instructions;
the processor, when executing the computer program instructions, implements the message screen display method of any of claims 4-9.
11. A computer storage medium having computer program instructions stored thereon which, when executed by a processor, implement the breath screen display method of any of claims 4-9.
12. A display device characterized in that the display device comprises the display panel according to any one of claims 1 to 3.
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Application publication date: 20220729 |