CN111223463A - Display panel, driving method thereof and display device - Google Patents
Display panel, driving method thereof and display device Download PDFInfo
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- CN111223463A CN111223463A CN202010115614.XA CN202010115614A CN111223463A CN 111223463 A CN111223463 A CN 111223463A CN 202010115614 A CN202010115614 A CN 202010115614A CN 111223463 A CN111223463 A CN 111223463A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3607—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
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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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
Abstract
The invention discloses a display panel, a driving method thereof and a display device, relating to the technical field of display and comprising the following steps: the pixel array comprises a plurality of pixel rows and a plurality of pixel columns, wherein the sub-pixels in the pixel rows are arranged along a first direction, and the sub-pixels in the pixel columns are arranged along a second direction; the same data line is respectively and electrically connected with at least part of sub-pixels in two adjacent pixel columns; the first poles of the switch units are respectively and correspondingly electrically connected with the data lines one by one; a plurality of data signal terminals arranged along a first direction, wherein one data signal terminal is electrically connected with the second poles of N switch units, and N is more than or equal to 2; the control ends of the N switch units corresponding to the same data signal end are respectively connected to different switch control lines; in any pixel row, the color and polarity of the sub-pixels electrically connected with the data lines corresponding to the same data signal terminal are the same. This is advantageous for saving power consumption of the display panel.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel, a driving method thereof, and a display device.
Background
Liquid crystal displays, which are flat, ultra-thin display devices, consist of a certain number of color or black and white pixels placed in front of a light source or a reflective surface. Liquid crystal displays are very low power consuming and are therefore favored by engineers for use in battery-operated electronic devices. The main principle is that the current stimulates the liquid crystal molecules to generate points, lines and surfaces which are matched with the back lamp tube to form a picture.
In general, a liquid crystal display is provided with a plurality of sub-pixels, the sub-pixels forming sub-pixel rows and sub-pixel columns, each sub-pixel row including a plurality of pixel units, each pixel unit typically including a red sub-pixel, a green sub-pixel, and a blue sub-pixel. In order to reduce the number of connecting wires between the display area and the driving chip and realize the design of a narrow frame, a data signal end on the driving chip is at least connected with two data lines, and the colors of sub-pixels corresponding to a plurality of data lines electrically connected with the same data signal end are different. During the display process, it is usually necessary to scan the pixel rows line by line, and the sub-pixels in the corresponding pixel row receive the data signals through the data lines. When the display performs a specific frame display, for example, a pure color frame display, taking a red frame as an example, since in one pixel row, the data line corresponding to the same data signal terminal is connected to both the red sub-pixel and the blue and green sub-pixels, the data that the data signal terminal needs to provide to the red sub-pixel is 255, and when scanning the blue sub-pixel or the green sub-pixel in the same row, the data that the data signal terminal needs to provide to the blue sub-pixel or the green sub-pixel is 0, therefore, when scanning the same pixel row, the data signal sent by the same data signal terminal needs to be inverted/jumped multiple times, which greatly improves the power consumption of the liquid crystal display and is not beneficial to saving the power consumption.
Disclosure of Invention
In view of the above, the present invention provides a display panel, a driving method thereof and a display device, wherein the color and polarity of the sub-pixels electrically connected to the data lines corresponding to the same data signal terminal are the same, and when a specific image is displayed, for example, when a pure color image is displayed and a certain pixel row is charged, the data signal sent by the data signal terminal does not need to jump/turn, so as to greatly save the power consumption of the display panel and the display device.
In a first aspect, the present application provides a display panel comprising:
a plurality of pixel rows and a plurality of pixel columns, one of the pixel rows comprising a plurality of sub-pixels, each sub-pixel in the pixel row being arranged along a first direction, each sub-pixel in the pixel column being arranged along a second direction, the first direction and the second direction intersecting;
the data lines extend along the second direction and are arranged along the first direction, and the same data line is electrically connected with at least part of sub-pixels in two adjacent pixel columns respectively;
the first poles of the switch units are respectively and correspondingly electrically connected with the data lines one by one;
the data signal terminals are distributed along a first direction, one data signal terminal is electrically connected with the second poles of N switch units, wherein N is more than or equal to 2;
the control ends of the N switch units corresponding to the same data signal end are respectively connected to different switch control lines;
in any one of the pixel rows, the color and polarity of the sub-pixels electrically connected to the data lines corresponding to the same data signal terminal are the same.
In a second aspect, the present application provides a driving method of a display panel in the present application, the driving method including:
scanning each pixel row line by line;
when a certain pixel row is scanned, sending control signals to the switch control lines in a time-sharing mode, and enabling the switch units electrically connected with different switch control lines to be conducted in a time-sharing mode;
and the data signal end sends data signals with the same polarity to the sub-pixels electrically connected with the switched-on switch units through the switched-on switch units, wherein in any pixel row, the sub-pixels electrically connected with the data lines corresponding to the same data signal end have the same color.
In a third aspect, the present application further provides a display device including the display panel provided in the present application.
Compared with the prior art, the display panel, the driving method thereof and the display device provided by the invention at least realize the following beneficial effects:
in the display panel, the driving method thereof and the display device provided by the application, a plurality of data lines extend along a second direction and are arranged along a first direction, the same data line is respectively and electrically connected with at least part of sub-pixels in two adjacent pixel columns, that is, the adjacent odd pixel column and the even pixel column share the same data line, the data line is electrically connected with part of sub-pixels in the odd pixel column and is simultaneously electrically connected with part of sub-pixels in the even pixel column, and the sub-pixels electrically connected with the same data line are respectively positioned in different pixel rows. This application has introduced a plurality of switch units and a plurality of data signal end, the first pole of each switch unit is connected with data line one-to-one electricity respectively, especially, a data signal end corresponds the second pole with N switch unit and is connected, because N is greater than or equal to 2, make a data signal end correspond two at least data lines like this, through the control of switch control line, the data line with same data signal end electricity connection can transmit data signal in time sharing, compare the mode that a data line corresponds a data signal end among the prior art, this application reduces half at least with the quantity of data signal end, thereby make the quantity of the signal line of drawing forth from the data signal end reduce half, therefore be favorable to realizing the narrow frame design of display panel. In addition, because the data signal end is arranged on the driving chip, the arrangement mode of the display panel driving circuit reduces the number of the data signal ends on the driving chip, and is beneficial to reducing the size of the driving chip, thereby reducing the occupied space of the driving chip on the display panel. In particular, in the display panel provided by the present application, when a data signal is transmitted to a certain pixel row through a data signal terminal and a data signal line (i.e., when a certain pixel row is charged) during a pure color image display, since the color and polarity of the sub-pixels electrically connected to the data line corresponding to the same data signal terminal are the same in any pixel row, when a specific image display, for example, during a pure color image display, is performed during a scan of any pixel row, the data signal transmitted by the same data signal terminal is kept unchanged without jumping/flipping, which is beneficial to saving the power consumption of the display panel and the display device, and is further beneficial to improving the service life of the display panel and the display device.
Of course, it is not necessary for any product in which the present invention is practiced to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments thereof, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram of a connection of sub-pixels in a prior art LCD device;
fig. 2 is a top view of a display panel according to an embodiment of the present disclosure;
fig. 3 is a connection diagram of sub-pixels in a display panel according to an embodiment of the present disclosure;
fig. 4 is a diagram illustrating another connection relationship of sub-pixels in a display panel according to an embodiment of the present disclosure;
FIG. 5 is a diagram illustrating a connection relationship between data lines and sub-pixels in a display panel according to an embodiment of the present disclosure;
fig. 6 is a schematic view illustrating a pixel arrangement in a display panel according to an embodiment of the present disclosure;
fig. 7 is a schematic view illustrating another pixel arrangement in a display panel according to an embodiment of the present disclosure;
fig. 8 is a diagram illustrating another connection relationship of sub-pixels in a display panel according to an embodiment of the present disclosure;
fig. 9 is a flowchart illustrating a driving method of a display panel according to an embodiment of the present disclosure;
fig. 10 is a structural diagram of a display device according to an embodiment of the present application.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
In the prior art, please refer to fig. 1, the data signal terminals S11, S12, S13 and S14 are electrically connected to three data lines, for example, the data signal terminal S11 is electrically connected to the data lines D1, D2 and D3, for the first pixel row, D1 is electrically connected to the red sub-pixel R, D2 is electrically connected to the blue sub-pixel B, and D3 is electrically connected to the green sub-pixel G. When the pure color image display is required, for example, when the blue image display is performed, when the first pixel row is scanned, the data signal terminal S11 transmits data signals to the data lines D1, D2 and D3 in a time division manner, and the data signal terminal S11 transmits data 0 to the red subpixel R through the data line D1, transmits data 255 to the blue subpixel B through the data line D2, and transmits data 0 to the green subpixel G through the data line D3. It can be seen that, during the scanning of one pixel row, the data signal sent by the data signal terminal S11 has jumped or flipped 2 times, from 0 to 255, and then from 255 to 0. Therefore, the power consumption of the liquid crystal display is greatly improved, and the power consumption is not saved.
Fig. 2 is a top view of a display panel according to an embodiment of the present disclosure, fig. 3 is a connection diagram of sub-pixels in the display panel according to the embodiment of the present disclosure, please refer to fig. 2 and fig. 3, a display panel 100 according to the present disclosure includes:
a plurality of pixel rows 10 and a plurality of pixel columns 20, wherein one pixel row 10 comprises a plurality of sub-pixels 30, each sub-pixel 30 in the pixel row 10 is arranged along a first direction, each sub-pixel 30 in the pixel column 20 is arranged along a second direction, and the first direction and the second direction intersect; optionally, the first direction and the second direction are perpendicular;
a plurality of data lines 40 extending along the second direction and arranged along the first direction, wherein the same data line 40 is electrically connected with at least some sub-pixels 30 in two adjacent pixel columns 20 respectively;
a plurality of switch units 50, first poles of the switch units 50 being electrically connected to the data lines 40 in a one-to-one correspondence;
a plurality of data signal terminals (e.g., S1, S2, S3, S4, S5, S6, S7, S8 in FIG. 3) arranged in a first direction, one data signal terminal being electrically connected to second poles of the N switching cells 50, wherein N ≧ 2;
n switch control lines K (fig. 3 includes 3 switch control lines K1, K2, and K3), and control ends of the N switch units 50 corresponding to the same data signal end are respectively connected to different switch control lines; for example, control terminals of 3 switching cells 50 corresponding to the data signal terminal S1 are connected to the switching control lines K1, K2, and K3, respectively;
in any pixel row 10, the sub-pixels 30 electrically connected to the data lines 40 corresponding to the same data signal terminal have the same color and polarity.
It should be noted that fig. 2 only shows the case where the display panel 100 includes a plurality of sub-pixels 30, and does not represent the actual size and number of sub-pixels 30 included in the display panel 100. Fig. 3 also only shows the connection relationship of a part of the sub-pixels 30 in the display panel 100, and does not represent that only this part of the sub-pixels 30 is included in the display panel 100, and the connection relationship of the sub-pixels 30 not shown can refer to the embodiment shown in fig. 3.
Specifically, with continued reference to fig. 2 and fig. 3, in the display panel 100 provided in the embodiment of the present application, a plurality of data lines 40 extend along the second direction and are arranged along the first direction, the same data line 40 is electrically connected to at least some of the sub-pixels 30 in two adjacent pixel columns 20, that is, the adjacent odd pixel column 20 and even pixel column 20 share the same data line 40, the data line 40 is electrically connected to some of the sub-pixels 30 in the odd pixel column 20 and is electrically connected to some of the sub-pixels 30 in the even pixel column 20, and the sub-pixels 30 electrically connected to the same data line 40 are located in different pixel rows 10. The present application introduces a plurality of switch units 50 and a plurality of data signal terminals, the first poles of the switch units 50 are electrically connected with the data lines 40 in a one-to-one correspondence, in particular, one data signal terminal is electrically connected to the second poles of the N switching cells 50, because N is more than or equal to 2, one data signal end corresponds to at least two data lines 40, the data lines 40 electrically connected with the same data signal end can transmit data signals in time through the control of the switch control line, for example, the data signal terminal S1 in fig. 3 is electrically connected to the data lines 41, 42, and 43 respectively through the switch unit, and compared with the manner that one data line 40 corresponds to one data signal terminal in the prior art, the present application reduces the number of data signal terminals by at least half, thereby halving the number of signal lines drawn from the data signal terminal, and thus facilitating the implementation of a narrow bezel design of the display panel 100. In addition, since the data signal terminals are disposed on the driving chip, the number of the data signal terminals on the driving chip is reduced by the arrangement method of the present application, which is beneficial to reducing the size of the driving chip, thereby reducing the space occupied by the driving chip on the display panel 100.
In particular, in the display panel 100 of the present application, when a data signal is transmitted to a certain pixel row 10 through a data signal terminal and a data signal line (i.e., when a certain pixel row 10 is charged) at the time of displaying a solid-color screen, for example, when a data signal is transmitted to the data lines 41, 42, and 43 through the data signal terminal S1, the data signal is transmitted in a time-sharing manner by controlling the switching control lines, first, the switching element corresponding to the switching control line K1 is turned on, and the data signal terminal S1 transmits the data signal to the sub-pixel electrically connected to the data line 41 in the first pixel row through the data line 41; secondly, the switch unit corresponding to the switch control line K2 is turned on, and the data signal terminal S1 transmits a data signal to the sub-pixels electrically connected to the data line 42 in the first pixel row through the data line 42; finally, the switching unit corresponding to the switching control line K3 is turned on, and the data signal terminal S1 transmits the data signal to the sub-pixels electrically connected to the data line 43 in the first pixel row through the data line 43. Since the color and polarity of the sub-pixels 30 electrically connected to the data lines corresponding to the same data signal terminal (e.g., the data lines 41, 42, and 43 corresponding to the data signal terminal S1) in any one of the pixel rows 10 are the same, when a specific image is displayed, for example, a pure color image is displayed, and when any one of the pixel rows 10 is scanned, the data signals sent by the same data signal terminal are the same, and the data signals do not need to jump/turn, which is favorable for saving the power consumption of the display panel 100 and further favorable for prolonging the service life of the display panel 100.
It should be noted that fig. 3 shows a case where N is 3, that is, one data signal end corresponds to 3 data lines 40, and compared with a manner in the prior art that one data signal end corresponds to one data line, the number of the data signal ends in this application is only 1/3 of the number of the data signal ends in the prior art, so that the number of the data signal ends is greatly reduced, which is more beneficial to implementing a narrow frame design and reducing the size of the driver chip. It should be noted that in some other embodiments of the present application, N may also be embodied in other numbers that are greater than or equal to 3, which is not specifically limited in the present application. For example, referring to fig. 4, fig. 4 is another connection diagram of sub-pixels 30 in the display panel 100 according to an embodiment of the present disclosure, in which one data signal terminal (corresponding to S1, S2, S3, S4, S5, S6, S7, or S8 in the figure) corresponds to 4 data lines 40, and 4 switch control lines are correspondingly introduced, which is also beneficial to implement a narrow bezel design and reduce the size of the driving chip.
In an alternative embodiment of the present invention, in the same frame, the polarities of the sub-pixels 30 electrically connected to the data lines 40 corresponding to the same data signal terminal are the same, and the polarities of the data signals transmitted by any two adjacent data signal terminals along the first direction are opposite.
Specifically, with continued reference to fig. 3, when scanning the pixel rows on the display panel 100, a frame from the scanning of the first pixel row to the completion of the scanning of the last pixel row is represented as a frame, that is, one frame corresponds to one scanning period. In the same frame, the polarities of the sub-pixels 30 electrically connected to the data lines 40 corresponding to the same data signal terminal are set to be the same, and the polarities of the data signals sent by the data signal terminals in the frame are all fixed without being inverted, so that the power consumption of the display panel 100 is saved, and the service life of the display panel 100 is prolonged. In addition, the data signal ends in this application are arranged along the first direction, and when the polarities of the data signals sent by any two adjacent data signal ends along the first direction are opposite, the polarities of the data signal ends are arranged according to the positive and negative … … or negative and positive … … rules, so that the logic complexity of the driving chip is simplified.
In an alternative embodiment of the present invention, in the nth pixel column 20 and the (n + 1) th pixel column 20 corresponding to the same data line 40, the same data line 40 is electrically connected to the (2 i + 1) th and (2 i + 2) th sub-pixels 30 in the nth pixel column 20 and to the (2 i + 3) th and (2 i + 4) th sub-pixels 30 in the (n + 1) th pixel column 20 at the same time; wherein n is more than or equal to 1, and i is an even number which is more than or equal to 0.
Fig. 5 is a diagram illustrating a connection relationship between data lines 40 and sub-pixels 30 in a display panel 100 according to an embodiment of the present disclosure, in the display panel 100 provided in the present disclosure, a same data line 40 is electrically connected to a portion of sub-pixels 30 in two adjacent pixel columns 20, specifically, in the view shown in fig. 5, taking a first data line 40 arranged from left to right as an example, the data line 40 is electrically connected to the sub-pixels 1, 2, 5, and 6 in the first pixel column 20 and electrically connected to the sub-pixels 3, 4, 7, and 8 in the second pixel column 20, that is, the sub-pixels 30 electrically connected to the same data line 40 are alternated in two adjacent pixel columns 20, and the alternation is favorable for reducing a crosstalk phenomenon occurring during a display process. It should be noted that fig. 5 only shows a connection manner of two sub-pixels 30 in two pixel columns 20 to which the data line 40 is connected, and in some other embodiments of the present application, other alternative manners may also be adopted, which is not specifically limited in this application. For example, the data line 40 may be electrically connected to the 3 rd, 4 th, 7 th, and 8 th sub-pixels 30 in the first pixel column 20, and electrically connected to the 1 st, 2 nd, 5 th, and 6 th sub-pixels 30 in the second pixel column 20.
In an alternative embodiment of the present invention, please continue to refer to fig. 3 and 4, the data lines 40 corresponding to the same data signal terminal are not adjacent along the first direction.
Specifically, in any pixel row 10, the color and polarity of the sub-pixels 30 electrically connected to the data lines 40 corresponding to the same data signal terminal are the same, and when the data lines 40 corresponding to the same data signal terminal are not adjacent, two sub-pixels 30 with the same color in the same pixel row 10 are not adjacent, for example, the data lines 41, 42, and 43 corresponding to the data signal terminal S1 in fig. 3 are not adjacent to each other, so that the sub-pixels 30 with the same color can be distributed in different pixels, and the arrangement rule of the pixels can be better met. In fig. 3 and 4, each pixel row 10 includes a plurality of pixel units arranged along the first direction, each pixel unit includes 4 sub-pixels 30, and optionally, in any pixel row 10, the sub-pixels 30 electrically connected to the data lines 40 corresponding to the same data signal terminal have the same color and are located in different pixel units.
In an alternative embodiment of the present invention, please refer to fig. 6, fig. 6 is a schematic diagram illustrating a pixel arrangement in the display panel 100 according to an embodiment of the present application, in which the display panel 100 includes a plurality of pixel row groups H arranged along a second direction, each pixel row group H includes two pixel rows 10 adjacent to each other along the second direction, which are a first pixel row H1 and a second pixel row H2;
the first pixel row H1 includes a plurality of first pixel units P01 sequentially arranged in a first direction, and the first pixel unit P01 includes a first color sub-pixel P1, a second color sub-pixel P2, a third color sub-pixel P3, and a fourth color sub-pixel P4 sequentially arranged in the first direction;
the second pixel row H2 includes a plurality of second pixel units P02 sequentially arranged in the first direction, and the second pixel unit P02 includes a third color sub-pixel P3, a fourth color sub-pixel P4, a first color sub-pixel P1, and a second color sub-pixel P2 sequentially arranged in the first direction.
Specifically, with continued reference to fig. 6, the display panel 100 provided by the present application includes a plurality of pixel row groups H arranged along a second direction, each pixel row group H includes two pixel rows 10, a first pixel unit P01 in a first pixel row H1 includes a first color sub-pixel P1, a second color sub-pixel P2, a third color sub-pixel P3, and a fourth color sub-pixel P4 arranged sequentially along the first direction, and a second pixel unit P02 in a second pixel row H2 includes a third color sub-pixel P3, a fourth color sub-pixel P4, a first color sub-pixel P1, and a second color sub-pixel P2 arranged sequentially along the first direction. In the same pixel row group H, the sub-pixels in the first pixel row H1 are arranged according to one color rule, the sub-pixels in the second pixel row H2 are arranged according to another color rule, and the plurality of pixel row groups H are repeatedly arranged along the second direction to form a regular and recyclable pixel arrangement manner, thereby facilitating simplification of the pixel arrangement process in the display panel 100.
In an alternative embodiment of the present invention, please refer to fig. 7, fig. 7 is a schematic diagram of another pixel arrangement in a display panel provided in an embodiment of the present application, and the embodiment is a further refinement of the embodiment shown in fig. 6, in which the first color sub-pixel P1, the second color sub-pixel P2, the third color sub-pixel P3, and the fourth color sub-pixel P4 are a red sub-pixel R, a green sub-pixel G, a blue sub-pixel B, and a white sub-pixel W, respectively.
Specifically, in each pixel unit, besides the three primary color sub-pixels 30 such as the red sub-pixel R, the green sub-pixel G, the blue sub-pixel B and the like, the white sub-pixel W is also introduced, and the introduction of the white sub-pixel W is beneficial to improving the brightness of each pixel unit, so that the whole brightness of the display panel 100 is favorably improved, and the visual experience effect of a user is favorably improved.
In an alternative embodiment of the present invention, referring to fig. 8, fig. 8 is a diagram illustrating another connection relationship of sub-pixels 30 in a display panel 100 according to an embodiment of the present application, in which each of the switch units 50 electrically connected to the same switch control line is a P-type transistor or an N-type transistor.
Specifically, fig. 8 shows a case where the switch units 50 electrically connected to the same switch control line are P-type transistors, and in some other embodiments of the present application, the switch units electrically connected to the same switch control line may also be all N-type transistors, which is not specifically limited in the present application. The types of the transistors in the switch units 50 electrically connected with the same switch control line are set to be the same, and when the switch control line sends control signals to the transistors connected with the switch control line, the transistors electrically connected with the switch control line can be ensured to be simultaneously switched on or switched off, so that the unified control of the transistors connected with the switch control line is realized, and the control time sequence of the switch units 50 in the application is favorably simplified.
In an alternative embodiment of the present invention, each of the switch units 50 is a P-type transistor or an N-type transistor.
Specifically, when each switch unit 50 in the display panel 100 is configured as a P-type transistor or an N-type transistor, the types of the transistors in the switch units 50 electrically connected to each switch control line are all the same, and this configuration, on one hand, enables each transistor as the switch unit 50 to be manufactured uniformly in the same manufacturing process without separately configuring different manufacturing processes for different types of transistors, which is beneficial to simplifying the manufacturing process of the display panel 100; on the other hand, when the types of transistors included in the switch units 50 are the same, the control signals for controlling the switch units 50 to be turned on are the same, which is beneficial to simplifying the complexity of the logic processing process of the display panel 100, thereby being beneficial to improving the signal processing capability of the display panel 100.
Based on the same inventive concept, the present application further provides a driving method of a display panel 100, where the display panel 100 is any display panel 100 provided in the embodiments of the present application, please refer to fig. 9, fig. 9 is a flowchart of the driving method of the display panel 100 provided in the embodiments of the present application, and with reference to fig. 2-3 and fig. 9, the driving method includes:
102, when scanning a certain pixel row 10, sending control signals to each switch control line in a time-sharing manner to enable the switch units 50 electrically connected with different switch control lines to be switched on in a time-sharing manner;
in step 103, the data signal terminal sends the data signals with the same polarity to the sub-pixels 30 electrically connected to the turned-on switching units 50 through the turned-on switching units 50, wherein the sub-pixels 30 electrically connected to the data lines 40 corresponding to the same data signal terminal in any pixel row 10 have the same color.
Specifically, referring to fig. 3, when the pixel rows 10 are scanned line by line, each pixel row 10 may be scanned line by line from top to bottom or each pixel row 10 may be scanned line by line from bottom to top at the viewing angle shown in fig. 3. In the present application, it will be described by taking the scanning of one pixel row 10 as an example, assuming that when the first pixel row is scanned, a control signal is sent to the switch control line in a time-sharing manner, for example, the control signal is sent to the first switch control line first, so that the switch unit 50 electrically connected to the first switch control line K1 is turned on, and at this time, the data signal can send the data signal with the same polarity to the sub-pixel 30 connected to the switch unit 50 and located in the first pixel row through the turned-on switch unit 50; secondly, sending a control signal to the second switch control line K2 to turn on the switch unit 50 electrically connected to the second switch control line K2, and at this time, the data signal can send the data signal with the same polarity to the sub-pixels 30 connected to the switch unit 50 and located in the first pixel row through the turned-on switch unit 50; finally, a control signal is sent to the third switch control line K3, so that the switch unit 50 electrically connected to the third switch control line K3 is turned on, and at this time, the data signal can send the data signal with the same polarity to the sub-pixel 30 connected to the switch unit 50 and located in the first pixel row through the turned-on switch unit 50; in this way, each sub-pixel 30 in the first pixel row receives the data signal, and the data signal writing of the first pixel row is completed.
In particular, in the display panel 100 of the present application, when a data signal is transmitted to a certain pixel row 10 through a data signal terminal and a data signal line (i.e., when a certain pixel row 10 is charged) at the time of displaying a solid-color screen, for example, when a data signal is transmitted to the data lines 41, 42, and 43 through the data signal terminal S1, the data signal is transmitted in a time-sharing manner by controlling the switching control lines, first, the switching element corresponding to the switching control line K1 is turned on, and the data signal terminal S1 transmits the data signal to the sub-pixel electrically connected to the data line 41 in the first pixel row through the data line 41; secondly, the switch unit corresponding to the switch control line K2 is turned on, and the data signal terminal S1 transmits a data signal to the sub-pixels electrically connected to the data line 42 in the first pixel row through the data line 42; finally, the switching unit corresponding to the switching control line K3 is turned on, and the data signal terminal S1 transmits the data signal to the sub-pixels electrically connected to the data line 43 in the first pixel row through the data line 43. Since the color and polarity of the sub-pixels 30 electrically connected to the data lines corresponding to the same data signal terminal (e.g., the data lines 41, 42, and 43 corresponding to the data signal terminal S1) in any one of the pixel rows 10 are the same, when a specific image is displayed, for example, a pure color image is displayed, and when any one of the pixel rows 10 is scanned, the data signals sent by the same data signal terminal are the same, and the data signals do not need to jump/turn, which is favorable for saving the power consumption of the display panel 100 and further favorable for prolonging the service life of the display panel 100.
In an optional embodiment of the present invention, in the same frame, the polarity of the data signal sent by the same data signal terminal is kept the same; in two adjacent frame pictures, the polarities of the data signals transmitted by the same data signal terminal are opposite.
Specifically, when scanning the pixel rows 10 on the display panel 100, a picture from when the first pixel row 10 is scanned to when the last pixel row 10 is scanned is represented as one frame picture, that is, one frame picture corresponds to one scanning period. In the same frame, the polarities of the sub-pixels 30 electrically connected to the data lines 40 corresponding to the same data signal terminal are set to be the same, and the polarities of the data signals sent by the data signal terminals in the frame are all fixed without being inverted, so that the power consumption of the display panel 100 is saved, and the service life of the display panel 100 is prolonged. In two adjacent frames, the polarity of the data signal transmitted from the data signal terminal is opposite, so that the polarity of the sub-pixels 30 on the display panel 100 is reversed. That is to say, in the time corresponding to one frame, the polarity of the data signal sent by the data signal terminal is kept unchanged, and does not need to be inverted, and when the next frame is displayed, the polarity of the data signal sent by the data signal terminal is inverted again, so that the frequency of polarity inversion of the data signal sent by the data signal terminal is greatly reduced, and the power consumption of the display panel 100 is greatly reduced.
Based on the same inventive concept, the present application further provides a display device 200, fig. 10 is a structural diagram of the display device 200 provided in the embodiment of the present application, and referring to fig. 10, the display device 200 includes a display panel 100, and the display panel 100 is the display panel 100 provided in the embodiment of the present application. It should be noted that, for the embodiments of the display device 200 provided in the embodiments of the present application, reference may be made to the embodiments of the display panel 100, and repeated descriptions are omitted. The display device 200 provided by the present application may be: any product or component with practical functions such as a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
In summary, the display panel and the display device provided by the invention at least achieve the following beneficial effects:
in the display panel, the driving method thereof and the display device provided by the application, a plurality of data lines extend along a second direction and are arranged along a first direction, the same data line is respectively and electrically connected with at least part of sub-pixels in two adjacent pixel columns, that is, the adjacent odd pixel column and the even pixel column share the same data line, the data line is electrically connected with part of sub-pixels in the odd pixel column and is simultaneously electrically connected with part of sub-pixels in the even pixel column, and the sub-pixels electrically connected with the same data line are respectively positioned in different pixel rows. This application has introduced a plurality of switch units and a plurality of data signal end, the first pole of each switch unit is connected with data line one-to-one electricity respectively, especially, a data signal end corresponds the second pole with N switch unit and is connected, because N is greater than or equal to 2, make a data signal end correspond two at least data lines like this, through the control of switch control line, the data line with same data signal end electricity connection can transmit data signal in time sharing, compare the mode that a data line corresponds a data signal end among the prior art, this application reduces half at least with the quantity of data signal end, thereby make the quantity of the signal line of drawing forth from the data signal end reduce half, therefore be favorable to realizing the narrow frame design of display panel. In addition, because the data signal end is arranged on the driving chip, the arrangement mode of the display panel driving circuit reduces the number of the data signal ends on the driving chip, and is beneficial to reducing the size of the driving chip, thereby reducing the occupied space of the driving chip on the display panel. In particular, in the display panel provided by the present application, when a data signal is transmitted to a certain pixel row through a data signal terminal and a data signal line (i.e., when a certain pixel row is charged) during a pure color image display, since the color and polarity of the sub-pixels electrically connected to the data line corresponding to the same data signal terminal are the same in any pixel row, when a specific image display, for example, during a pure color image display, is performed during a scan of any pixel row, the data signal transmitted by the same data signal terminal is kept unchanged without jumping/flipping, which is beneficial to saving the power consumption of the display panel and the display device, and is further beneficial to improving the service life of the display panel and the display device.
Although some specific embodiments of the present invention have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (11)
1. A display panel, comprising:
a plurality of pixel rows and a plurality of pixel columns, one of the pixel rows comprising a plurality of sub-pixels, each sub-pixel in the pixel row being arranged along a first direction, each sub-pixel in the pixel column being arranged along a second direction, the first direction and the second direction intersecting;
the data lines extend along the second direction and are arranged along the first direction, and the same data line is electrically connected with at least part of sub-pixels in two adjacent pixel columns respectively;
the first poles of the switch units are respectively and correspondingly electrically connected with the data lines one by one;
the data signal terminals are distributed along a first direction, one data signal terminal is electrically connected with the second poles of N switch units, wherein N is more than or equal to 2;
the control ends of the N switch units corresponding to the same data signal end are respectively connected to different switch control lines;
in any one of the pixel rows, the color and polarity of the sub-pixels electrically connected to the data lines corresponding to the same data signal terminal are the same.
2. The display panel according to claim 1, wherein in a same frame, polarities of sub-pixels electrically connected to data lines corresponding to a same one of the data signal terminals are the same, and polarities of data signals transmitted from any two adjacent data signal terminals along the first direction are opposite.
3. The display panel according to claim 1, wherein in an nth pixel column and an n +1 th pixel column corresponding to the same data line, the same data line is electrically connected to the 2i +1 th and 2i +2 th sub-pixels in the nth pixel column and to the 2i +3 th and 2i +4 th sub-pixels in the n +1 th pixel column at the same time; wherein n is more than or equal to 1, and i is an even number which is more than or equal to 0.
4. The display panel according to claim 1, wherein the data lines corresponding to the same data signal terminal are not adjacent to each other in the first direction.
5. The display panel according to claim 1, wherein the display panel includes a plurality of pixel row groups arranged along the second direction, each of the pixel row groups including two pixel rows adjacent to each other along the second direction, the first pixel row and the second pixel row being respectively;
the first pixel row comprises a plurality of first pixel units which are sequentially arranged along a first direction, and each first pixel unit comprises a first color sub-pixel, a second color sub-pixel, a third color sub-pixel and a fourth color sub-pixel which are sequentially arranged along the first direction;
the second pixel row comprises a plurality of second pixel units which are sequentially arranged along a first direction, and each second pixel unit comprises a third color sub-pixel, a fourth color sub-pixel, a first color sub-pixel and a second color sub-pixel which are sequentially arranged along the first direction.
6. The display panel according to claim 5, wherein the first, second, third and fourth color sub-pixels are red, green, blue and white sub-pixels, respectively.
7. The display panel according to claim 1, wherein each of the switch units electrically connected to the same switch control line is a P-type transistor or an N-type transistor.
8. The display panel according to claim 1, wherein each of the switch units is a P-type transistor or an N-type transistor.
9. A driving method of the display panel according to any one of claims 1 to 8, characterized by comprising:
scanning each pixel row line by line;
when a certain pixel row is scanned, sending control signals to the switch control lines in a time-sharing mode, and enabling the switch units electrically connected with different switch control lines to be conducted in a time-sharing mode;
and the data signal end sends data signals with the same polarity to the sub-pixels electrically connected with the switched-on switch units through the switched-on switch units, wherein in any pixel row, the sub-pixels electrically connected with the data lines corresponding to the same data signal end have the same color.
10. The method for driving a display panel according to claim 9, wherein polarities of data signals transmitted from the same data signal terminal are kept the same in the same frame; in two adjacent frame pictures, the polarities of the data signals sent by the same data signal terminal are opposite.
11. A display device comprising the display panel according to any one of claims 1 to 8.
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| CN202010115614.XA CN111223463A (en) | 2020-02-25 | 2020-02-25 | Display panel, driving method thereof and display device |
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