CN114664256A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN114664256A
CN114664256A CN202210436674.0A CN202210436674A CN114664256A CN 114664256 A CN114664256 A CN 114664256A CN 202210436674 A CN202210436674 A CN 202210436674A CN 114664256 A CN114664256 A CN 114664256A
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sub
display panel
pixel
pixels
refresh
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CN202210436674.0A
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Chinese (zh)
Inventor
叶帅
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Wuhan Tianma Microelectronics Co Ltd
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Wuhan Tianma Microelectronics Co Ltd
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Priority to CN202210436674.0A priority Critical patent/CN114664256A/en
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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]
    • G09G3/3225—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] using an active matrix
    • 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
    • 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
    • G09G2320/0257—Reduction of after-image effects

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

The application discloses display panel and display device, this display panel includes: the refreshing unit comprises M sub-pixels; the method comprises the steps that S frames of refreshing pictures are included in a data writing period of a display panel, and the size of a refreshing unit is determined according to the total frame number S of the refreshing pictures in the data writing period and the number L of sub-pixels M of the display panel, wherein in the ith frame of refreshing pictures in the data writing period, a target sub-pixel in the refreshing unit is turned off, other sub-pixels except the target sub-pixel are luminous, the target sub-pixel is any one of the M sub-pixels, and i is less than or equal to S; with the switching of the refreshing picture, the target sub-pixels in the refreshing unit are sequentially changed. The method and the device can solve the problem that partial sub-pixels are in a high-brightness state for a long time to cause image sticking when the display panel displays the information screen.

Description

Display panel and display device
Technical Field
The application belongs to the technical field of display, and particularly relates to a display panel and a display device.
Background
At present, display panels have penetrated into various aspects of people's daily life, for example, the display panels are used as display interaction modules of various devices for users to correspondingly watch. When the Display panel is in an Always On Display (AOD), because some sub-pixels are in a high brightness state for a long time, image sticking is easily caused.
Disclosure of Invention
The embodiment of the application provides a display panel and a display device, and can solve the problem that partial sub-pixels are in a high-brightness state for a long time to cause afterimages when the display panel displays information on a screen.
One aspect of the present application provides a display panel, including:
and the refreshing unit comprises M sub-pixels.
The display panel comprises S frames of refreshing pictures in a data writing period, the size of the refreshing unit is determined according to the total frame number S of the refreshing pictures in the data writing period and the number L M of the sub-pixels of the display panel, wherein,
in an ith frame refreshing picture in a data writing period, a target sub-pixel in a refreshing unit is turned off, other sub-pixels except the target sub-pixel emit light, the target sub-pixel is any one of M sub-pixels, and i is less than or equal to S.
And with the switching of the refreshing picture, the target sub-pixels in the refreshing unit are sequentially changed.
Another aspect of the present application provides a display device, including the display panel described above.
Compared with the prior art, in the display panel and the display device provided by the embodiment of the application, the refresh unit comprises M sub-pixels by arranging L refresh units. The display panel comprises S frames of refreshing pictures in a data writing period, wherein because the ith frame of refreshing pictures in the data writing period, a target sub-pixel in the refreshing unit is turned off, other sub-pixels except the target sub-pixel emit light, the target sub-pixel is any one of M sub-pixels, and i is less than or equal to S; and with the switching of the refreshing picture, the target sub-pixels in the refreshing unit are sequentially changed. Therefore, all the sub-pixels in the display panel are in a dynamic on-off state according to the division of the pixel units, the aging process of the light emitting units in the display panel is delayed, and the phenomenon that partial sub-pixels are in a high-brightness state and are prone to image sticking when the display panel is in the AOD mode is improved. And because the refreshing unit is determined according to the total frame number S of the refreshing picture and the number of the sub-pixels of the display panel in a data writing period, the refreshing unit is divided from the pixel space change of the display panel and the time dimension of picture refreshing, and the ghost image is improved, and the display effect of the display panel is balanced.
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 diagram of an alternative structure of a display panel according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating an alternative process of sequentially changing target sub-pixels in a refresh unit when a refresh frame of a display panel is switched according to an embodiment of the present application;
FIG. 3 is a schematic diagram illustrating an alternative process of reverse conversion of target sub-pixels in a refresh unit when a refresh frame of a display panel is switched according to an embodiment of the present application;
FIG. 4 is a schematic diagram of an alternative structure of a refresh unit in a display panel according to an embodiment of the present disclosure;
FIG. 5 is a schematic diagram of an alternative refresh process in which a refresh unit includes 4 sub-pixels in a display panel according to an embodiment of the present application;
FIG. 6 is a schematic diagram of an alternative refresh process in which a refresh unit in a display panel includes 9 sub-pixels according to an embodiment of the present application;
FIG. 7 is a schematic diagram of an alternative refresh process in which a refresh unit includes 4 sub-pixels in a display panel according to an embodiment of the present application;
FIG. 8 is a schematic diagram of another alternative structure of a display panel according to an embodiment of the present application;
fig. 9 is a schematic diagram of a display device provided in the present application.
In the drawings: display panel 100, refresh unit 110, target subpixel 111.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.
It is to be understood that the terms "upper", "lower", "left", "right", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience of description only, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of this patent. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise. Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
It should also be noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In order to explain the technical solution of the present application, the following detailed description is made with reference to the specific drawings and examples.
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 units. The pixel circuit is generally composed of a TFT (Thin Film Transistor) and a capacitor. The Light Emitting unit may include an OLED (Organic Light-Emitting Diode), or other Light Emitting devices.
Because the TFTs in the pixel circuits have hysteresis, in the display state of the display screen, if the light-emitting unit keeps emitting light for a long time, the TFTs in the corresponding pixel circuits will cause image sticking on the display panel due to the hysteresis.
The existing solution for improving the afterimage phenomenon caused by the display of the screen is mainly to increase the duty ratio of the light-emitting control signal and increase the driving current of the light-emitting pixels so as to reduce the afterimage phenomenon under the condition of small brightness change. However, the above-mentioned improvement method for adjusting the duty ratio and the driving current of the light-emitting control signal is often affected by the process conditions of the display panel itself, and usually only a short-term afterimage phenomenon can be slightly reduced to a certain extent, and the reduction effect is relatively limited. In addition, 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, so that the actual display effect of the display panel is influenced.
In order to solve the above technical problem, embodiments of the present application provide a display panel and a display device. The following first describes a display panel provided in an embodiment of the present application.
Referring to fig. 1, fig. 1 shows an alternative structure diagram of a display panel 100 according to an embodiment of the present application. The display panel 100 may include:
l refresh units 110, the refresh unit 110 may include M sub-pixels.
The display panel 100 includes S frame refresh pictures in one data writing period.
In the ith frame refresh frame in a data write cycle, the target sub-pixel 111 in the refresh unit 110 may be turned off, other sub-pixels except the target sub-pixel 111 may emit light, the target sub-pixel 111 may be any one of M sub-pixels, i is less than or equal to S, and i and S may be positive integers.
With the switching of the refresh frame, the target sub-pixels 111 in the refresh unit 110 can be sequentially changed.
It should be noted that the size of the refresh unit 110 can be determined by integrating the total frame number S of the refresh frame in one data writing period and the number L × M of the sub-pixels of the display panel 100.
It is understood that the total number of frames S of the refresh frame in a data writing period can represent the frequency of the occurrence of pixel change, which represents the display effect in the time dimension, and the number L × M of the sub-pixels of the display panel 100 can represent the pixel space dimension. Based on the balanced consideration of the total frame number S of the picture refreshing and the pixel space dimension, and the proper size of the refreshing unit 110 is divided according to the consideration, the dynamic on-off speed of the sub-pixels can be controlled, so that the flash screen caused by the fact that the on-off state of each sub-pixel in the refreshing unit 110 is switched too fast is prevented, and meanwhile, the problem that the residual image improvement effect is poor caused by the fact that the on-off state of the sub-pixels is switched slowly is prevented.
On the other hand, for the target sub-pixels 111 in the refresh unit 110, since the positions of the sub-pixels in the off state are changed in sequence with the switching of the refresh frame, and as the positions of the sub-pixels in the off state are changed, the sub-pixels in the off state originally can be in the light-emitting state in the subsequent refresh frame, so that a single sub-pixel can be periodically changed in the on-off state, and through a plurality of data writing periods, for example, one data writing period, all sub-pixels in the display panel 100 are changed in the on-off switching manner, that is, the entire display panel 100 can be periodically changed in the on-off state according to a rule, thereby preventing the single sub-pixel from being in the normally-on state, delaying the aging of the devices of the display panel 100, improving the afterimage caused by the display of the screen, and not affecting the display effect of the display panel 100.
Therefore, by providing L refresh units 110 in this embodiment, the refresh unit 110 may include M sub-pixels. In total, S frame refresh frames may be included in one data writing period of the display panel 100, wherein, because of the ith frame refresh frame in one data writing period, the target sub-pixel 111 in the refresh unit 110 may be turned off, other sub-pixels except the target sub-pixel 111 may emit light, the target sub-pixel 111 may be any one of M sub-pixels, i ≦ S; and the target sub-pixels 111 in the refresh unit 110 can be sequentially changed with the switching of the refresh frame. Therefore, all the sub-pixels in the display panel 100 can be in a dynamic on-off state according to the division of the pixel units, which helps to delay the aging process of the light emitting units in the display panel 100 and improve the phenomenon that when the display panel 100 is in the AOD mode, the residual image is easily generated when part of the sub-pixels are in the high-brightness state.
In addition, since the refresh unit 110 can be determined according to the total frame number S of the refresh frame and the number of the sub-pixels of the display panel 100 in a data writing period, the refresh unit 110 is divided according to the pixel space variation of the display panel 100 and the time dimension of the frame refresh, which is beneficial to the balance of the display effect of the display panel 100 while improving the ghost.
Referring to fig. 1, in some optional examples, the size of the refresh unit 110 may be further determined according to power consumption of a driver IC (Integrated Circuit) of the display panel 100, a total frame number S of a refresh frame in a data writing period, and a number L × M of sub-pixels of the display panel 100.
It should be noted that, if the size of the refresh unit 110 is determined only by the total number of the sub-pixels of the display panel 100, the pixel on/off change occurs during each frame of screen refresh, which easily causes the problem of the screen flashing phenomenon and the problem of high power consumption of the driving IC of the display panel 100. Therefore, in this example, the pixel space of the display panel 100 and the time dimension of the frame refresh are combined, and the power consumption balance of the driver IC is considered, so that the selected size of the refresh unit 110 is lower in the power consumption of the driver IC, and the display effect of the display panel 100 and the effect of improving the AOD afterimage are both considered.
For example, before the display panel 100 is shipped, the plurality of size sizes of the refresh unit 110 may be set according to the total number of frames in one data writing period and the total number of sub-pixels in the display panel 100, which are set according to the type of the display panel 100. Then, when the refresh units 110 with different sizes sequentially convert the target sub-pixels 111, the power consumption of the driving ICs of the display panel 100 and the display effect data of the display panel 100 are obtained.
It should be noted that the display effect data obtained by the test may include AOD afterimage data, an afterimage effect that can be observed when the display panel 100 starts the touchscreen display, and a screen flashing situation of the display panel 100. And then, a group of data with lower power consumption, unobvious screen flashing situation and better afterimage improvement effect is selected from a plurality of groups of display effect data corresponding to the refreshing units 110 with different sizes. The size of the refresh unit 110 corresponding to the selected set of display effect data can be used as the final size of the refresh unit 110 of the display panel 100.
In some alternative examples, please refer to fig. 2 and 3, the target sub-pixels within the refresh unit 110 are sequentially or inversely transformed as the refresh picture of the display panel is switched.
Illustratively, as illustrated in the example of fig. 2 below, when the display panel displays a first frame refresh screen, the target sub-pixel of the single refresh unit 110 is at the a1 position, and with the switching of the refresh screen, when the display panel displays a second frame refresh screen, the target sub-pixel in the single refresh unit 110 sequentially changes from the a1 position to the a2 position; when the display panel displays the refresh picture of the third frame, the target sub-pixel within the single refresh unit 110 is shifted from the a2 position to the A3 position.
Illustratively, as illustrated in the example of fig. 3 below, when the display panel displays the first frame refresh picture, the target sub-pixel of the single refresh picture is at the A3 position, and when the display picture is switched from the first frame refresh picture to the second frame refresh picture, the target sub-pixel in the single refresh unit 110 may remain unchanged at the A3 position; when the display screen is switched from the second frame refresh screen to the third frame refresh screen, the target sub-pixel within the single refresh unit 110 may move from the A3 position to the a2 position; when the display screen is switched from the third frame refresh screen to the fourth frame refresh screen, the target sub-pixel within the single refresh unit 110 may remain unchanged at the a2 position. That is, in this example, the picture refresh target sub-pixels are transformed in the reverse order every other frame.
In some alternative examples, referring to fig. 4, the total number S of frames of the display panel refreshing the picture in one data writing period and the refreshing unit 110 may satisfy the following mathematical relationship, that is, S ═ m × N, where m may be an integer greater than or equal to 1, for example, m ═ 1 or 2, and may also be other values. N × N may be in the form of an array arrangement of sub-pixels in the refresh unit 110, that is, M sub-pixels in the refresh unit 110 may be arranged in an array of N × N.
It is understood that the size of M may be related to the total number L M of the display panel sub-pixels, the total frame number S of the refresh frame within one data writing period, and the like, and in the case that the total frame number S of the refresh frame within one data writing period is fixed, the larger M is, the smaller N is, i.e. the size of the refresh unit 110 is relatively small. For example, if the total number of frames of the refreshed image in a data writing period is large, a smaller m value may be set, the size of the refresh unit 110 may be enlarged, the number of dynamic on/off times of each sub-pixel may be reduced, and the phenomenon of screen flashing may be prevented.
In some alternative examples, please refer to fig. 4 and 5, when m is 1, that is, the total frame number of the refresh frames in one data writing period is the total number of the sub-pixels in the refresh unit 110, the frame may be refreshed in the ith frame in one data writing period, and the ith sub-pixel in the refresh unit 110 is the target sub-pixel.
Illustratively, fig. 5 shows a schematic diagram of a refresh process of a single refresh unit 110 in a display panel, in a case where the above mathematical relationship is satisfied. Where m is 1, and the total number of frames of the refresh frame in one data write period is 4, N is 2 according to S m N. That is, the sub-pixels in the refresh unit 110 are arranged in an array of 2 × 2.
When the target sub-pixel point is selected to realize the dynamic on-off change of the sub-pixels, the first sub-pixel at the upper left corner of the array where the refresh unit 110 is located may be used as the starting sub-pixel, and the starting sub-pixel and the target sub-pixel are sequentially changed. The sub-pixel in the lower right corner or other position of the array may also be used as the starting sub-pixel.
Taking the first sub-pixel at the upper left corner of the array formed by the sub-pixels in the refresh unit 110 as the starting sub-pixel, since the number of the refresh units 110 at this time is consistent with the total frame number in a data write period, the target sub-pixel is consistent with the sequence of the refresh frame change.
In the example shown in fig. 5, the first frame to the fourth frame refresh pictures are sequentially changed, which corresponds to that at the time of the first frame refresh picture, the sub-pixel P1 in the refresh unit 110 is the target sub-pixel, i.e. at this time, the sub-pixel P1 is changed from the light-emitting state to the light-off state, which completes one dynamic on-off switching, and the rest of sub-pixels emit light; when the picture is refreshed in the second frame, the sub-pixel P2 in the refresh unit 110 is the target sub-pixel, and the rest of the sub-pixels including the sub-pixel P1 emit light, that is, the sub-pixel P2 is turned off from the light-emitting state, which completes one dynamic on-off switching; when the picture is refreshed in the third frame, the subpixel P3 in the refresh unit 110 is the target subpixel, and the remaining subpixels including the subpixel P2 emit light, that is, at this time, the subpixel P3 changes from a light-emitting state to a light-off state, which completes one dynamic on-off switching; when the picture is refreshed in the fourth frame, the sub-pixel P4 in the refresh unit 110 is the target sub-pixel, and the rest of the sub-pixels including the sub-pixel P3 emit light. And when the next data writing period comes, the target subpixel becomes the subpixel P1 again.
That is, all the sub-pixels in the refresh unit 110 complete dynamic on-off switching in a single data writing period, and correspond to all the refresh units 110, that is, all the sub-pixels in the entire display panel complete one dynamic on-off switching in one data writing period.
In other examples, referring to fig. 6, in fig. 6, a data writing period includes 9 refresh frames, and when m is 1, the refresh unit 110 includes 9 sub-pixels, which is in a3 × 3 array structure. Wherein the target sub-pixel also changes in correspondence with, but in reverse order with, the refresh picture change. The process may be that the subpixel P9 at the lower right corner of the refresh unit 110 is used as a starting subpixel, when the first frame refreshes the picture, the subpixel P9 is turned off, the rest subpixels are turned on, when the second frame refreshes the picture, the subpixel P8 is turned off, the rest subpixels emit light … …, and the target subpixels sequentially change until when the 8 th frame refreshes the picture, the subpixel P2 is turned off, and the rest subpixels emit light; in the frame 9, when the picture is refreshed, the subpixel P1 is turned off, and the remaining subpixels emit light.
By the above example, for the condition that the total frame number of the refresh frame in a data write-in period is consistent with the number of the sub-pixels in the refresh unit 110, the implementation process that the target sub-pixels sequentially change along with the switching of the refresh frame is given, so that all the sub-pixels of the display panel are dynamically turned on and off in a single data write-in period, the aging process of the light-emitting unit in the display panel can be relieved, and the phenomenon that the residual image is easily generated when part of the sub-pixels are in the high-brightness state when the display panel is in the AOD mode is improved.
In other examples, referring to fig. 4 and 7, for the case of m >1, e.g., when m >1, i is in the [1, m ] range, the 1 st subpixel in the refresh unit 110 may be set as the target subpixel. And when m >1, i belongs to the range of [ m × i ' +1, m × (i ' +1) ], the i ' th sub-pixel in the refresh unit 110 is the target sub-pixel.
In this example, for the case that m >1, the target subpixel holding state is set, that is, in the process of two target subpixel transformations, there are several refreshing pictures, and the position of the target subpixel is not transformed, so that the on-off change frequency of the subpixels in the refreshing unit 110 in the data writing period is relatively reduced, the occurrence of the phenomenon of screen flash is reduced, and meanwhile, the phenomenon that when the display panel is in the AOD mode, part of subpixels are in the high-brightness state and are prone to image sticking is improved.
Referring to fig. 7, in fig. 7, a data write cycle includes 8 frames of refresh frames, where m is 2, and N is 2 and the refresh unit 110 is 2 × 2 array configuration according to the total frame number of the refresh frames in the data refresh cycle and the mathematical relationship of the refresh unit 110.
As shown in fig. 7, along with the switching process of the refresh frame, the change process of the target sub-pixel in the refresh unit 110 may be to use the sub-pixel P1 at the upper left corner of the refresh unit 110 as the starting sub-pixel, and when the frame is refreshed in the first frame, the sub-pixel P1 is the target sub-pixel, and is in an off state, and the rest sub-pixels emit light; when the picture is refreshed in the second frame, the sub-pixel P1 keeps an off state, and the rest sub-pixels emit light, namely the position of the target sub-pixel is not changed; when the picture is refreshed in the third frame, the target sub-pixel is switched from the sub-pixel P1 to the sub-pixel P2, namely the sub-pixel P2 is turned off, the sub-pixel P1 is turned on, and the sub-pixels P3 and P4 are also in a light-emitting state; when the picture is refreshed in the third frame, the target sub-pixel still remains as P2, the other sub-pixels emit light, a refresh picture is formed at the interval, the target sub-pixel sequentially changes one pixel point, sequential change is realized until a data writing period is finished, and the on-off states of all sub-pixels in a single refresh unit 110 are refreshed.
In some alternative examples, the positions of the target subpixels in the L refresh units coincide in a single refresh frame of one data write cycle. The position refers to the position of the target sub-pixel within the refresh unit relative to other light-emitting sub-pixels within the refresh unit. Referring to fig. 8, where fig. 8 shows the positions of the target sub-pixels of different refresh frames in the plurality of refresh units 110 in the display area of the display panel 100, it can be seen that the positions of the target sub-pixels in the refresh units 110 in the same row or the same column are also in the same row or the same column, thereby facilitating the control of the sub-pixels by the scan signals and the data signals of the display panel 100.
The display panel of the embodiment of the present application is described in detail above with reference to fig. 1 to 8. On this basis, the embodiment of the present application further protects a display device, and referring to fig. 9, fig. 9 is a schematic diagram of a display device provided in the present application, the display device includes the display panel 100 provided in any of the foregoing embodiments, and the display device may be at least one of a wearable device, a camera, a mobile phone, a tablet computer, a display screen, a television, and an in-vehicle display terminal. The display device comprises the display panel provided by the embodiment, so that the display device has all the beneficial effects of the display panel.
In addition, the term "and/or" herein is only one kind of association relationship describing an associated object, and means that there may be three kinds of relationships, for example, a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It should be understood that in the embodiment of the present application, "B corresponding to a" means that B is associated with a, from which B can be determined. It should also be understood that determining B from a does not mean determining B from a alone, but may also be determined from a and/or other information.
While the invention has been described with reference to specific embodiments, the scope of the invention is not limited thereto, and those skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the invention, and these modifications or substitutions are intended to be included in the scope of the invention. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (10)

1. A display panel, comprising:
l refreshing units, wherein the refreshing units comprise M sub-pixels;
the display panel comprises S frames of refreshing pictures in a data writing period, the size of the refreshing unit is determined according to the total frame number S of the refreshing pictures in the data writing period and the number L M of the sub-pixels of the display panel, wherein,
refreshing a picture in an ith frame in a data writing period, wherein a target sub-pixel in the refreshing unit is turned off, other sub-pixels except the target sub-pixel emit light, the target sub-pixel is any one of M sub-pixels, and i is less than or equal to S;
with the switching of the refreshing picture, the target sub-pixels in the refreshing unit are sequentially changed.
2. The display panel according to claim 1, wherein the size of the refresh unit is determined according to a power consumption of a driving IC of the display panel, a total number of frames S of a refresh picture within one data writing period, and a number of subpixels L × M of the display panel.
3. The display panel according to claim 1, wherein the target sub-pixel in the refresh unit is sequentially changed or inversely changed with a change of a refresh picture.
4. The display panel of claim 1, wherein S-M-N, M sub-pixels are arranged in an N-N array, and M is greater than or equal to 1.
5. The display panel according to claim 4, wherein when m is 1, an ith frame in a data writing period refreshes a picture, and an ith sub-pixel in the refreshing unit is the target sub-pixel.
6. The display panel according to claim 4, wherein the 1 st sub-pixel in the refresh unit is the target sub-pixel when m >1, i ∈ [1, m ].
7. The display panel of claim 4, wherein when m >1, i e [ m + i ' +1, m (i ' +1) ], the i ' th sub-pixel in the refresh unit is the target sub-pixel.
8. The display panel according to claim 4, wherein m is 2.
9. The display panel according to claim 1, wherein the target sub-pixels in L of the refresh units are positioned uniformly in a single refresh frame of a data write cycle.
10. A display device characterized by comprising the display panel according to any one of claims 1 to 9.
CN202210436674.0A 2022-04-24 2022-04-24 Display panel and display device Pending CN114664256A (en)

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CN1779765A (en) * 2004-11-22 2006-05-31 三星Sdi株式会社 Luminescent display device
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Application publication date: 20220624