CN113219743B - Display panel, display device, and driving method of display panel - Google Patents
Display panel, display device, and driving method of display panel Download PDFInfo
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/136286—Wiring, e.g. gate line, drain line
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
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Abstract
The application discloses display panel, display device and driving method, the display panel includes: the pixel structure comprises a plurality of data lines, a plurality of scanning lines and a plurality of sub-pixels arranged in an array, wherein each row of sub-pixels are correspondingly provided with the data lines and the scanning lines, and each sub-pixel comprises at least one first sub-pixel region and at least one second sub-pixel region; the control end of the first active switch is connected with the scanning line corresponding to the sub-pixel, and the data signal writing end is connected with the data line corresponding to the sub-pixel; and the control end of the second active switch is connected with the next row of scanning lines adjacent to the sub-pixels, and the data signal writing end is connected with the previous row of data lines adjacent to the sub-pixels, so that after the first sub-pixel area and the second sub-pixel area are charged, the second sub-pixel area is driven by the next row of scanning lines and the previous row of data lines adjacent to the second sub-pixel area, and the defect of color cast of the visual angle of the liquid crystal display is overcome.
Description
Technical Field
The present application relates to the field of liquid crystal display technologies, and in particular, to a display panel, a display device, and a driving method of the display panel.
Background
The statements herein merely provide background information related to the present application and may not necessarily constitute prior art.
Most of the existing large-sized liquid crystal display panels are negative-type Vertical Alignment (VA) liquid crystals or In-Plane Switching (IPS) liquid crystals, and comparing the VA liquid crystal technology with the IPS liquid crystal technology, it can be found that the VA liquid crystal technology has higher production efficiency and lower manufacturing cost, but the VA liquid crystal technology is inferior to the IPS liquid crystal technology In terms of the optical property, and has a more obvious optical property defect.
Therefore, the existing color shift solution will affect the panel transmittance, and the color shift phenomenon cannot be improved well.
Disclosure of Invention
The present application is directed to a display panel, a display device and a driving method of the display panel, and aims to effectively improve color shift without affecting panel transmittance.
In order to achieve the above object, the present application provides a display panel, a first substrate and a second substrate oppositely disposed, and a display medium between the first substrate and the second substrate; the first substrate includes:
the data lines and the scanning lines are arranged in a crossed manner;
the array structure comprises a plurality of sub-pixels arranged in an array, wherein each row of the sub-pixels is correspondingly provided with a data line and a scanning line, and each sub-pixel comprises at least one first sub-pixel area and at least one second sub-pixel area;
a plurality of first active switches, wherein a first sub-pixel region and a second sub-pixel region of each sub-pixel are respectively connected with the corresponding first active switches, a control end of each first active switch is connected with a corresponding scanning line of each sub-pixel, and a data signal writing end of each first active switch is connected with a corresponding data line of each sub-pixel;
the second sub-pixel regions of the sub-pixels are connected with the corresponding second active switches, the control ends of the second active switches are connected with the next row of scanning lines adjacent to the sub-pixels, the data signal writing ends of the second active switches are connected with the previous row of data lines adjacent to the sub-pixels, and the charging capacity of the first active switch is larger than that of the second active switch.
Optionally, the at least one first sub-pixel region and the at least one second sub-pixel region are arranged in an intersection.
Optionally, when the data signal of the data line is positive, the driving voltage of the data line is greater than a reference voltage, and when the data signal of the data line is negative, the driving voltage of the data line is less than or equal to the reference voltage, where the reference voltage is a common electrode reference voltage of the first active switch and the second active switch.
Optionally, adjacent data lines adopt drive signals of opposite polarity.
Optionally, when the first sub-pixel region is driven with positive polarity, the second sub-pixel region is driven with negative polarity.
Optionally, when the first sub-pixel region is driven with negative polarity, the second sub-pixel region is driven with positive polarity.
Optionally, the first and second sub-pixel regions are arranged with opposite polarities.
Optionally, the first sub-pixel region and the second sub-pixel region are located in the same sub-pixel.
In addition, to achieve the above object, the present application also proposes a display device including the display panel as described above.
Further, to achieve the above object, the present application also proposes a driving method of a display panel applied to the display device as described above, the display device including a first sub-pixel region, a second sub-pixel region, a data line, and a scanning line that scans line by line, the driving method of the display panel including:
when the first sub-pixel area and the second sub-pixel area receive the driving signal of the scanning line, the first sub-pixel area and the second sub-pixel area are charged through the data line; and
and when the second sub-pixel area receives the driving signal of the corresponding data line, the voltage of the second sub-pixel area is reduced.
The display panel in this application includes: the data lines and the scanning lines are arranged in a crossed manner; the array structure comprises a plurality of sub-pixels arranged in an array, wherein each row of the sub-pixels is correspondingly provided with a data line and a scanning line, and each sub-pixel comprises at least one first sub-pixel area and at least one second sub-pixel area; a plurality of first active switches, wherein a first sub-pixel region and a second sub-pixel region of each sub-pixel are respectively connected with the corresponding first active switches, a control end of each first active switch is connected with a corresponding scanning line of each sub-pixel, and a data signal writing end of each first active switch is connected with a corresponding data line of each sub-pixel; the second sub-pixel areas of the sub-pixels are connected with the corresponding second active switches, the control ends of the second active switches are connected with the next row of scanning lines adjacent to the sub-pixels, and the data signal writing ends of the second active switches are connected with the previous row of data lines adjacent to the sub-pixels, so that after the first sub-pixel areas and the second sub-pixel areas are charged, the second sub-pixel areas are driven through the next row of scanning lines and the previous row of data lines adjacent to the sub-pixels.
Drawings
FIG. 1 is a schematic circuit diagram of a pixel structure according to an embodiment of a display panel of the present application;
FIG. 2 is a schematic diagram of liquid crystal deflection of high electron pixels and low voltage sub-pixels of adjacent sub-pixels of an exemplary display panel of the present application;
FIG. 3 is a schematic diagram of a partial circuit structure of a pixel structure in another embodiment of a display panel according to the present application;
FIG. 4 is a schematic timing diagram of a display panel according to another embodiment of the present application;
FIG. 5 is a schematic structural diagram of an embodiment of a display device according to the present application;
fig. 6 is a flowchart illustrating a driving method of a display panel according to an embodiment of the present disclosure.
The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
70 | Second |
| 20 | |
100 | |
| 30 | |
200 | |
| 40 | |
210 | |
| 50 | |
220 | |
| 60 | First active switch |
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.
In addition, the descriptions related to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
The invention provides a display panel.
Referring to fig. 1, fig. 1 is a schematic circuit diagram of a pixel structure in an embodiment of a display panel, in the embodiment of the present invention, the display panel 100 includes: the display device comprises a first substrate, a second substrate and a display medium, wherein the first substrate and the second substrate are oppositely arranged, and the display medium is arranged between the first substrate and the second substrate; the first substrate includes: the display panel comprises a plurality of data lines 10 and a plurality of scanning lines 20, wherein the data lines 10 and the scanning lines 20 are arranged in a crossed manner; a plurality of sub-pixels 30 arranged in an array, wherein the data lines 10 and the scan lines 20 are disposed in each row of the sub-pixels 30, and each sub-pixel 30 includes a plurality of first sub-pixel regions 40 and a plurality of second sub-pixel regions 50; a plurality of first active switches 60, wherein the first sub-pixel region 40 and the second sub-pixel region 50 of the sub-pixel 30 are respectively connected to the first active switches 60, a control terminal of the first active switch 60 is connected to a scan line corresponding to the sub-pixel 30, and a data signal write terminal of the first active switch 60 is connected to a data line corresponding to the sub-pixel 30; the second sub-pixel region 50 of the sub-pixels 30 is connected to the second active switches 70, the control terminals of the second active switches 70 are connected to the scanning lines 20 of the next row adjacent to the sub-pixels 30, and the data signal write terminals of the second active switches 70 are connected to the data lines 10 of the previous column adjacent to the sub-pixels 30.
It should be noted that, the first substrate may be an array substrate, the second substrate may be a color film substrate, the display medium is a liquid crystal, in this embodiment, the first sub-pixel region 40 and the second sub-pixel region 50 are located in the same sub-pixel, that is, the same sub-pixel is divided into two regions, the first sub-pixel region 40 and the second sub-pixel region 50 may also be divided into a plurality of regions, which is not limited in this embodiment, adjacent sub-pixel regions are driven by bright and dark voltages through a preset driving manner, and at least one first sub-pixel region 40 and at least one second sub-pixel region 50 are alternately arranged, so as to improve the color shift defect of the viewing angle of the liquid crystal display, where the first sub-pixel region 40 represents a high voltage region, the second sub-pixel region 50 represents a low voltage region, and the first sub-pixel region 40 also represents a low voltage region, the second sub-pixel 20 represents a high voltage region, which is not limited in this embodiment, the first sub-pixel region 40 represents a high voltage region, and the second sub-pixel region 50 represents a low voltage region, for example, the first sub-pixel region 40 and the second sub-pixel region 50 are arranged with opposite polarities, the first sub-pixel region 40 and the second sub-pixel region 50 are driven with positive polarity driving and negative polarity driving alternately, respectively, wherein the charging capability of the first active switch 60 is greater than that of the second active switch 70.
The display device comprises a data line 10 and a scanning line 20 which scans line by line, wherein the scanning line 20 comprises a first scanning line and a second scanning line, and the driving time of the first scanning line is earlier than that of the second scanning line.
In this embodiment, the first scan line is VGnThe second scan line is VGn+1. That is, the sequential scan driving signals are VG from top to bottomn、VGn+1And VGn+2…。
The adjacent data lines 10 adopt driving signals with opposite polarities, and the data lines 10 include adjacent first and second data lines, wherein the first and second data lines adopt driving signals with opposite polarities.
It is understood that the first data line is Vdn-mThe second data line is Vdn-m+1I.e. Vd is turned on in sequencen-m、Vdn-m+1And Vdn-m+2… pairs of high voltage regions VplaData writing is performed and the first sub-pixel region 40 and the second sub-pixel region 50 are arranged with opposite polarities.
The first active switch 60 is respectively connected to the scan line 20 and the data line 10;
the second active switch 70 is connected to the data line with opposite polarity of the first active switch 60, so that the voltage difference between the first sub-pixel region 40 and the second sub-pixel region 50 occurs, and the effect of alternating bright and dark is achieved.
Since the first active switch 60 and the second active switch 70 are driven by the data lines with opposite polarities, the charging capacity of the first active switch 60 is greater than that of the second active switch 70.
The first active switch 60 and the second active switch 70 may be thin film transistors, and may also be other circuits capable of achieving the same or similar functions.
As shown in fig. 2, the liquid crystal deflection diagram of the adjacent sub-pixels of the display panel 100, i.e. the high-voltage sub-pixel and the low-voltage sub-pixel, divides each sub-pixel of RGB into sub-pixels, i.e. primary and secondary sub-pixels, so that the overall brightness of the large viewing angle is closer to the front view with the voltage variation, wherein θAIndicating the liquid crystal deflection angle, theta, in the high electric regionBThe liquid crystal deflection angle in the high electric region is expressed, so that the change relation of the visual angle brightness along with the signal is close to the change of the front-view original signal brightness along with the signal under the condition of not sacrificing the transmittance, and the visual angle is improved.
However, in this embodiment, when the data signal of the data line 10 has a positive polarity, the driving voltage of the data line 10 is greater than the reference voltage, when the data signal of the data line 10 is negative, the driving voltage of the data line 10 is less than the reference voltage, wherein the reference voltage is a common electrode reference voltage of the driving transistor, since the first active switch 60 is represented by T1 and the second active switch 70 is represented by T2 for the TFT element, and the T2 is charged with a secondary data driving line, since the first active switch 60 and the second active switch 70 are charged through the data lines, and the second active switch 70 is driven through the data lines with opposite polarities, the charging voltage of the first sub-pixel region 40 is reduced compared with the original signal, so as to achieve the display of the low-voltage sub-pixel, and the adjacent sub-pixels are alternated in high and low voltages, thereby achieving the purpose of reducing color cast.
As shown in fig. 3, a schematic diagram of a partial circuit structure of a pixel structure in another embodiment of a display panel specifically includes: the control end of the first active switch 60 is connected to the scan line 20;
the control terminal of the second active switch 70 is connected to the scan line 20, and the data signal write terminal of the second active switch 70 is connected to the data line of the opposite polarity of the first active switch 60.
As shown in fig. 3, the control terminal of the adjacent first driving transistor is connected to the scan line, the previous driving transistor is connected to the first sub-pixel region 40, the control terminal of the previous driving transistor is connected to the second sub-pixel region 50 and the next driving transistor, respectively, and the data signal writing terminal of the next driving transistor is connected to the data line 10, so as to charge the first sub-pixel region 40 and the second sub-pixel region 50.
The data signal write terminal of the second active switch 70 is connected to the previous stage data line corresponding to the data line connected to the first active switch 60, and the control terminal of the second active switch 70 is connected to the next stage scan line of the scan line connected to the first active switch 60, thereby reducing the voltage of the first active switch 60.
In this embodiment, only one TFT element T1 is used for charging the sub-pixel in the design of the higher-voltage bright sub-pixel, the TFT element T2 has smaller charging capability than that of T1 in the design of the darker-voltage dark sub-pixel, and the second active switch 70 is also driven by the data line with the opposite polarity.
In the technical solution provided in this embodiment, the display panel includes: the display device comprises a first substrate, a second substrate and a display medium, wherein the first substrate and the second substrate are oppositely arranged, and the display medium is arranged between the first substrate and the second substrate; the first substrate includes: the display panel comprises a plurality of data lines 10 and a plurality of scanning lines 20, wherein the data lines 10 and the scanning lines 20 are arranged in a crossed manner; a plurality of sub-pixels 30 arranged in an array, wherein the data lines 10 and the scan lines 20 are disposed in each row of the sub-pixels 30, and each sub-pixel 30 includes at least one first sub-pixel region 40 and at least one second sub-pixel region 50; a plurality of first active switches 60, wherein the first sub-pixel region 40 and the second sub-pixel region 50 of the sub-pixel 30 are respectively connected to the corresponding first active switches 60, a control terminal of the first active switch 60 is connected to a scan line corresponding to the sub-pixel 30, and a data signal write terminal of the first active switch 60 is connected to a data line corresponding to the sub-pixel 30; a plurality of second active switches 70, the second sub-pixel regions 50 of the sub-pixels 30 are connected with the corresponding second active switches 70, the control terminal of the second active switch 70 is connected to the scanning line 20 of the next row adjacent to the sub-pixel 30, the data signal write terminal of the second active switch 70 is connected to the previous column of data lines 10 adjacent to the sub-pixel 30, so that after the first sub-pixel region 40 and the second sub-pixel region 50 are charged, the second sub-pixel region 50 is also driven by the next row of scan lines and the adjacent previous column of data lines, because the charging capability of the first active switch 60 is greater than that of the second active switch 70, the charging voltage of the second sub-pixel region 50 is reduced compared with the original signal, so that the low-voltage sub-pixel region is presented, the bright and dark pixel voltage driving is realized, and the defect of color cast of the viewing angle of the liquid crystal display can be overcome.
Referring to fig. 4, fig. 4 is a signal timing diagram of still another embodiment of the display panel, in which the first active switch 60 is represented by T1, the second active switch 70 is represented by T2, and T2 has a smaller charging capacity than T1.
It should be noted that the display panel adopts a driving method of an inverted flip-pixel design, a driving method of an inverted tri-gate design, or other driving methods, and this embodiment is not limited thereto, and the sequential scanning driving signals are VG from top to bottomn、VGn+1And VGn+2…, the data driving signal is Vd from left to rightm、Vdm+1And Vdm+2…, in this embodiment, a driving method in which the display panel is designed to have inverted flip-pixel pixels will be described as an example.
In the specific implementation, the voltage interval of bright and dark pixels is realized by adopting a driving mode of flip-pixel design, and the adjacent sub-pixel areas are driven by the bright and dark voltages, so that the defect of color cast of the visual angle of the liquid crystal display can be improved. The design of the high-voltage bright sub-pixel area is only provided with one TFT element T1 to charge the sub-pixel, the design of the dark-voltage dark sub-pixel area is provided with one TFT element T1 to charge the sub-pixel, and the other TFT element T2 is driven by the next-stage scanning driving line, the TFT element T2 has smaller charging capacity than that of T1, the TFT element T2 is charged by adjacent data driving lines, and the adjacent data driving lines drive driving signals with different polarities. The first active switch 60 and the second active switch 70 are charged through the data lines, and the second active switch 70 is driven through the data lines with opposite polarities, so that the charging voltage of the first sub-pixel region 40 is reduced compared with the original signal, the low-voltage sub-pixel is realized, the voltage driving of the bright and dark pixels is realized, and the defect of color cast of the visual angle of the liquid crystal display can be improved.
Continuing with FIGS. 1 and 4, the charge-driving TFT element T1, which is the primary charge-driving TFT element for the higher voltage bright region, is designed to be a Flip-pixel design, with the same data-driving signal, such as the data-driving signal shown in FIG. 4VdmThe data driving line VG is from top to bottom according to the scan driving signaln、VGn+1、VGn+2… sequentially turn on the drive scan pair imageHormone Vdn-m、Vdn+1-m、Vdn+2-m… high Voltage Bright region Vp1a for data write, VdmIs sequentially written into the sub-pixels Vdn-m、Vdn+1-m、Vdn+2-m… high voltage bright area Vp1aSame polarity driving voltage, as in FIG. 1, VdmThe data driving signal of (1) is positive in polarity as an example. Similarly, Vdm+1Is sequentially written into the sub-pixels Vdn-m+1、Vdn+1-m+1、Vdn+2-m+1… high voltage bright area Vp1aSame polarity driving voltage, Vdm+1The data driving signal (Vd) is negative, and the same time Vdn-m、Vdn+1-m、Vdn+2-m… high voltage bright area Vp1aAnd low voltage dark space Vp1bAll carry out high voltage bright area Vp through TFT element T11aAnd low voltage dark space Vp1bAnd charging the same-polarity signal. To realize Vdn-m、Vdn+1-m、Vdn+2-m… Low Voltage dark space Vp1bDesigning another TFT element T2 from the next level, for example VGn+1Is VGnAnd a scanning drive line and an adjacent data drive line Vd of different polaritym-1Connecting, writing same high voltage bright area at this stage, e.g. VGnIs VGn+1At the time of scanning driving, the data driving line Vd is driven via the TFT element T1mThe opposite drive signal. VG from top to bottom according to scan driving signalsn、VGn+1、VGn+2… sequentially turn on the TFT element T2 to the sub-pixel Vdn-m、Vdn+1-m、Vdn+2-m… Low Voltage dark space Vp1bAnd (5) carrying out heteropolar data writing. Therefore, the sub-pixel Vdn-m、Vdn+1-m、Vdn+2-m… high voltage bright area Vp1aAnd low voltage dark space Vp1bData writing is performed by first charging a data driving line Vd through a TFT element T1mA positive polarity voltage. At the time of next-stage scanning drive line driving, Vdn-m、Vdn+1-m、Vdn+2-m… Low Voltage dark space Vp1bA data driving line Vd charged through the TFT element T2m-1The negative polarity voltage, the TFT element T2 is designed to have a smaller charging capability than T1,so that the sub-pixel Vdn-m、Vdn+1-m、Vdn+2-m… Low Voltage dark space Vp1bFinal charging voltage is higher than original high voltage bright area Vp1aThe signal is reduced, and the voltage driving of bright and dark pixels is realized in the same sub-pixel, so that the defect of the visual angle color cast of the liquid crystal display can be improved.
After the inversion period, the polarity of the data driving signal is switched to the original VdmPositive polarity driving of data drive lines, Vdm+1Data drive line negative polarity driving, converted into VdmNegative polarity driving of data drive lines, Vdm+1The data driving lines are driven with positive polarity.
Continuing as shown in FIG. 4, the high voltage bright region Vp1aAnd low voltage dark space Vp1bVoltage drive description. High voltage bright area Vp1aIs VdmPositive polarity driving x, low voltage dark space Vp of data driving line1bIs VdmThe data driving line drives x with positive polarity, and charges Vd with opposite polarity to the previous TFT element T1 through the next TFT element T2 in the second periodm-1The data drive line is driven in negative polarity, and the charging capacity of T2 is less than that of T1, so that the final charging voltage of the sub-pixel is x'<x, so that the sub-pixels are driven by bright and dark voltages to achieve the purpose of improving the color cast of the viewing angle of the liquid crystal display.
In an embodiment, when the data signal of the data line 10 is positive, the driving voltage of the data line 10 is greater than the reference voltage, and when the data signal of the data line 10 is negative, the driving voltage of the data line 10 is less than the reference voltage, where the reference voltage is a common electrode reference voltage of the driving transistor.
In this embodiment, the first scan line is VGnFor example, the second scan line is VGn+1The reference voltage is Vcom, and the first data line is Vdn-mAnd the second data line is Vdn-m+1I.e., the positive polarity driving voltages of the data driving signals are all greater than the reference voltage, the first sub-image can be made to be the same since the adjacent opposite polarity data driving lines are charged to the TFT element second driving transistor T2The charging voltage of the pixel region 40 is reduced compared with the original signal, so that the alternation of high voltage and low voltage in the same sub-pixel is realized, and the purpose of reducing color cast is achieved.
In one embodiment, when the first sub-pixel region 40 is driven with positive polarity, the second sub-pixel region 50 is driven with negative polarity.
In the present embodiment, it is ensured that, during the positive polarity driving, the first sub-pixel region 40 realizes a high voltage, the second sub-pixel region 50 realizes a low voltage, and the high-low voltage alternation of the adjacent sub-pixels is realized, thereby achieving the purpose of improving the color shift.
In one embodiment, when the first sub-pixel region 40 is driven with negative polarity, the second sub-pixel region 50 is driven with negative polarity.
In the present embodiment, it is ensured that the first sub-pixel region 40 realizes a low voltage and the second sub-pixel region 50 realizes a high voltage during the negative polarity driving, so as to realize the alternation of high and low voltages of adjacent sub-pixels, thereby achieving the purpose of improving color shift.
In order to achieve the above object, the present invention further provides a display device, as shown in fig. 5, which is a schematic structural diagram of an embodiment of the display device, where the display device includes the display panel and the driving module 200, the driving module 200 may include a scanning circuit 210 and a driving circuit 220, the scanning circuit 210 is configured to output a scanning signal, and generally scans the pixel units row by row, and the driving circuit 220 outputs a driving signal, so that the pixel units receive driving data when being scanned, and display the driving data.
The driving module 200 can refer to the above embodiment, and through this process, the sub-pixels in the pixel unit can be driven in different driving manners in cooperation with high and low voltages, so as to solve the color cast of the viewing angle.
The specific structure of the display panel refers to the above embodiments, and since the device adopts all technical solutions of all the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
In order to achieve the above object, the present invention further provides a driving method of a display panel, as shown in fig. 6, which is a schematic flow chart of an embodiment of the driving method of the display panel, the driving method of the display panel is applied to the display device as described above, the display device includes a first sub-pixel region, a second sub-pixel region, a data line and a scanning line which is scanned line by line, the driving method of the display panel includes:
step S10, when the first sub-pixel region and the second sub-pixel region receive the driving signal of the scan line, the data line is charged; and
in step S20, the second sub-pixel region reduces the voltage of the second sub-pixel region when receiving the driving signal of the corresponding data line.
According to the technical scheme provided by the embodiment, the first sub-pixel region and the second sub-pixel region are charged through the data line when receiving the driving signal of the scanning line, and the voltage of the second sub-pixel region is reduced when the second sub-pixel region receives the driving signal of the data line with opposite polarity, so that the charging capacities of the driving transistors connected with the adjacent sub-pixel regions are different, the adjacent sub-pixel regions realize high-low voltage alternation, and the purpose of reducing color cast is achieved.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all equivalent structural transformations, or direct/indirect applications in other related technical fields, which are within the spirit of the present invention, are included in the present invention.
Claims (8)
1. A display panel, comprising: the display device comprises a first substrate, a second substrate and a display medium, wherein the first substrate and the second substrate are oppositely arranged, and the display medium is arranged between the first substrate and the second substrate; the first substrate includes:
the data lines and the scanning lines are arranged in a crossed manner;
the array structure comprises a plurality of sub-pixels arranged in an array, wherein each row of the sub-pixels is correspondingly provided with a data line and a scanning line, and each sub-pixel comprises at least one first sub-pixel area and at least one second sub-pixel area;
a plurality of first active switches, wherein a first sub-pixel region and a second sub-pixel region of each sub-pixel are respectively connected with the corresponding first active switches, a control end of each first active switch is connected with a corresponding scanning line of each sub-pixel, and a data signal writing end of each first active switch is connected with a corresponding data line of each sub-pixel; and
a plurality of second active switches, wherein a second sub-pixel region of each sub-pixel is connected to the corresponding second active switch, a control terminal of each second active switch is connected to a next row of scan lines adjacent to the sub-pixel, and a data signal write terminal of each second active switch is connected to a previous row of data lines adjacent to the sub-pixel, wherein the charging capability of the first active switch is greater than that of the second active switch;
the polarity of the previous column of data lines connected with the second active switch is opposite to that of the current column of data lines.
2. The display panel of claim 1, wherein the at least one first sub-pixel region and the at least one second sub-pixel region are disposed in an intersection.
3. The display panel of claim 1, wherein the driving voltage of the data line is greater than a reference voltage when the data signal of the data line is positive, and the driving voltage of the data line is less than or equal to the reference voltage when the data signal of the data line is negative, wherein the reference voltage is a common electrode reference voltage of the first active switch and the second active switch.
4. A display panel as claimed in any one of claims 1 to 3 wherein adjacent data lines employ drive signals of opposite polarity.
5. The display panel according to any one of claims 1 to 3, wherein the first sub-pixel region and the second sub-pixel region have the same polarity.
6. The display panel according to any one of claims 1 to 3, wherein the first sub-pixel region and the second sub-pixel region are located in the same sub-pixel.
7. A display device characterized in that it comprises a display panel as claimed in any one of claims 1-6.
8. A driving method of a display panel, wherein the driving method of the display panel is applied to the display device according to claim 7, the display device includes a first sub-pixel region, a second sub-pixel region, a data line and a scan line corresponding to the first sub-pixel region, a scan line and a scan line corresponding to the second sub-pixel region, a data line and a data line corresponding to the second sub-pixel region, and a data line in a previous column, the driving method of the display panel includes:
when the first sub-pixel area and the second sub-pixel area receive the driving signals of the corresponding scanning lines, the data lines corresponding to the first sub-pixel area and the second sub-pixel area are charged; and
when the second sub-pixel area receives a driving signal of a corresponding scanning line of a next row, the previous row of data lines corresponding to the second sub-pixel area are charged, and the voltage of the second sub-pixel area is reduced.
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Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010009747A (en) * | 1999-07-13 | 2001-02-05 | 윤종용 | Liquid crystal display |
| CN101369075A (en) * | 2007-08-15 | 2009-02-18 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| CN101576692A (en) * | 2008-05-09 | 2009-11-11 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| CN101644842A (en) * | 2008-09-04 | 2010-02-10 | 友达光电股份有限公司 | Multi switch pixel design using column inversion data driving |
| CN101802698A (en) * | 2007-09-13 | 2010-08-11 | 夏普株式会社 | Multiple-primary-color liquid crystal display device |
| CN101800035A (en) * | 2009-02-05 | 2010-08-11 | 瀚宇彩晶股份有限公司 | Liquid crystal display device and driving method thereof |
| CN103268048A (en) * | 2013-04-27 | 2013-08-28 | 合肥京东方光电科技有限公司 | Array substrate, display device and driving method |
| CN104536224A (en) * | 2014-12-31 | 2015-04-22 | 深圳市华星光电技术有限公司 | Thin film transistor array substrate and display panel |
| CN104977763A (en) * | 2015-06-18 | 2015-10-14 | 深圳市华星光电技术有限公司 | Drive circuit, drive method thereof and liquid crystal display |
| CN106855668A (en) * | 2016-12-30 | 2017-06-16 | 深圳市华星光电技术有限公司 | Dot structure, array base palte and display panel |
| KR20170113935A (en) * | 2016-03-29 | 2017-10-13 | 삼성디스플레이 주식회사 | Display device |
| CN108646480A (en) * | 2018-04-02 | 2018-10-12 | 深圳市华星光电半导体显示技术有限公司 | A kind of vertical alignment-type liquid crystal display |
| CN108828860A (en) * | 2018-06-22 | 2018-11-16 | 惠科股份有限公司 | Display panel and display device |
| CN109298574A (en) * | 2018-11-20 | 2019-02-01 | 深圳市华星光电技术有限公司 | A kind of array substrate and display panel |
| WO2019024187A1 (en) * | 2017-08-02 | 2019-02-07 | 惠科股份有限公司 | Display panel and charge sharing control method for same |
| WO2019056442A1 (en) * | 2017-09-19 | 2019-03-28 | 惠科股份有限公司 | Array substrate and display panel having same |
| CN110930959A (en) * | 2019-11-28 | 2020-03-27 | 武汉华星光电半导体显示技术有限公司 | Pixel driving circuit and liquid crystal display panel |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7898623B2 (en) * | 2005-07-04 | 2011-03-01 | Semiconductor Energy Laboratory Co., Ltd. | Display device, electronic device and method of driving display device |
| TWI377383B (en) * | 2008-05-05 | 2012-11-21 | Au Optronics Corp | Pixel, display and the driving method thereof |
| TWI408477B (en) * | 2009-12-30 | 2013-09-11 | Au Optronics Corp | Pixel array, and polymer stablized alignment liquid crystal display panel |
| CN101738802B (en) * | 2009-12-31 | 2012-06-27 | 昆山龙腾光电有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN103226274B (en) * | 2013-04-23 | 2015-09-30 | 京东方科技集团股份有限公司 | Array base palte and driving method thereof and electrochromic display device (ECD) |
| CN104658501B (en) * | 2015-03-05 | 2017-04-19 | 深圳市华星光电技术有限公司 | Voltage conversion circuit, display panel and driving method of display panel |
| WO2017130293A1 (en) * | 2016-01-26 | 2017-08-03 | 堺ディスプレイプロダクト株式会社 | Liquid crystal display device |
| KR102401648B1 (en) * | 2017-06-07 | 2022-05-26 | 삼성디스플레이 주식회사 | Display device |
-
2021
- 2021-04-20 CN CN202110427135.6A patent/CN113219743B/en active Active
Patent Citations (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010009747A (en) * | 1999-07-13 | 2001-02-05 | 윤종용 | Liquid crystal display |
| CN101369075A (en) * | 2007-08-15 | 2009-02-18 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| CN101802698A (en) * | 2007-09-13 | 2010-08-11 | 夏普株式会社 | Multiple-primary-color liquid crystal display device |
| CN101576692A (en) * | 2008-05-09 | 2009-11-11 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| CN101644842A (en) * | 2008-09-04 | 2010-02-10 | 友达光电股份有限公司 | Multi switch pixel design using column inversion data driving |
| CN101800035A (en) * | 2009-02-05 | 2010-08-11 | 瀚宇彩晶股份有限公司 | Liquid crystal display device and driving method thereof |
| CN103268048A (en) * | 2013-04-27 | 2013-08-28 | 合肥京东方光电科技有限公司 | Array substrate, display device and driving method |
| CN104536224A (en) * | 2014-12-31 | 2015-04-22 | 深圳市华星光电技术有限公司 | Thin film transistor array substrate and display panel |
| CN104977763A (en) * | 2015-06-18 | 2015-10-14 | 深圳市华星光电技术有限公司 | Drive circuit, drive method thereof and liquid crystal display |
| KR20170113935A (en) * | 2016-03-29 | 2017-10-13 | 삼성디스플레이 주식회사 | Display device |
| CN106855668A (en) * | 2016-12-30 | 2017-06-16 | 深圳市华星光电技术有限公司 | Dot structure, array base palte and display panel |
| WO2019024187A1 (en) * | 2017-08-02 | 2019-02-07 | 惠科股份有限公司 | Display panel and charge sharing control method for same |
| WO2019056442A1 (en) * | 2017-09-19 | 2019-03-28 | 惠科股份有限公司 | Array substrate and display panel having same |
| CN108646480A (en) * | 2018-04-02 | 2018-10-12 | 深圳市华星光电半导体显示技术有限公司 | A kind of vertical alignment-type liquid crystal display |
| CN108828860A (en) * | 2018-06-22 | 2018-11-16 | 惠科股份有限公司 | Display panel and display device |
| CN109298574A (en) * | 2018-11-20 | 2019-02-01 | 深圳市华星光电技术有限公司 | A kind of array substrate and display panel |
| CN110930959A (en) * | 2019-11-28 | 2020-03-27 | 武汉华星光电半导体显示技术有限公司 | Pixel driving circuit and liquid crystal display panel |
Non-Patent Citations (2)
| Title |
|---|
| Novel Pixel Structure for 8K QUHD LCD Panel with the Enhanced Optical Performances;Kwang Soo Bae;《SID Symposium Digest of Technical Papers》;20200305;第50卷(第1期);第703-706页 * |
| 薄膜晶体管液晶显示器的串扰研究;肖文俊;《中国优秀硕士学位论文全文数据库信息科技辑》;20150215(第2(2015)期);第I136-74页 * |
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