CN110955088B - Pixel unit and display panel - Google Patents
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- CN110955088B CN110955088B CN201811125644.8A CN201811125644A CN110955088B CN 110955088 B CN110955088 B CN 110955088B CN 201811125644 A CN201811125644 A CN 201811125644A CN 110955088 B CN110955088 B CN 110955088B
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- 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
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- G02F1/134309—Electrodes characterised by their geometrical arrangement
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Abstract
The invention discloses a pixel unit, which comprises a plurality of pixel structures, wherein each pixel structure comprises: the first pixel structure comprises a first main electrode and a first branch electrode connected with the first main electrode, and an acute included angle between the first branch electrode and the first main electrode is a first angle; and the second pixel structure comprises a second main electrode and a second branch electrode connected with the second main electrode, and an acute included angle between the second branch electrode and the second main electrode is a second angle. The pixel unit comprises a first pixel structure and a second pixel structure, wherein an acute angle between a first branch electrode of the first pixel structure and a first main electrode is a first angle, and an acute angle between a second branch electrode of the second pixel structure and a second main electrode is a second angle, so that the phenomenon of whitening in side view is solved.
Description
Technical Field
The invention belongs to the field of display, and particularly relates to a pixel unit and a display panel.
Background
As the display specification of the lcd is continuously developing towards large size, the market demands the lcd performance to pay more and more attention to the characteristics of high contrast, fast response, wide viewing angle, etc. In order to overcome the viewing angle problem of large-sized liquid crystal display panels, the wide viewing angle technology of liquid crystal display panels must be continuously improved and broken through. Polymer Stabilized vertical alignment liquid crystal (PSVA, Polmer Stabilized vertical Aligned) is one of the wide viewing angle technologies currently widely used in liquid crystal display panels.
Currently, the PSVA type liquid crystal panel generally adopts a 4Domain (4 Domain) design, and in order to maximize the transmittance of the PSVA type liquid crystal panel, the liquid crystal direction of each Domain forms a 45-degree angle with the absorption axis of the polarizer, so that the angle between the direction of the ITO (indium tin oxide) electrode and the horizontal direction needs to be set to be 45 degrees.
However, since the optical path difference of the liquid crystal is larger in the side view direction than in the front view direction, a white phenomenon occurs in the side view.
Disclosure of Invention
In order to solve the above problems in the prior art, the present invention provides a pixel unit. The technical problem to be solved by the invention is realized by the following technical scheme:
the embodiment of the invention provides a pixel unit, which comprises a plurality of pixel structures, wherein each pixel structure comprises:
the first pixel structure comprises a first main electrode and a first branch electrode connected with the first main electrode, and an acute included angle between the first branch electrode and the first main electrode is a first angle;
and the second pixel structure comprises a second main electrode and a second branch electrode connected with the second main electrode, and an acute included angle between the second branch electrode and the second main electrode is a second angle.
In one embodiment, the first angle is greater than or equal to 40 degrees and less than 45 degrees.
In a particular embodiment, the second angle is equal to 45 degrees.
In a specific embodiment, the first main electrode is a cross-shaped electrode, the cross-shaped electrode divides the first pixel structure into four first partitions, and two adjacent first branch electrodes in any one first partition are parallel to each other.
In a specific embodiment, the first branch electrodes in two adjacent first partitions are not parallel to each other.
In a specific embodiment, the second main electrode is a cross-shaped electrode, the cross-shaped electrode divides the second pixel structure into four second partitions, and two adjacent second branch electrodes in any one of the second partitions are parallel to each other.
In a specific embodiment, the second branch electrodes in two adjacent second partitions are not parallel to each other.
In one embodiment, the data lines, scan lines;
and the switch part is electrically connected with the data line and the scanning line and is also electrically connected with the first pixel structure and the second pixel structure respectively.
In a specific embodiment, the first pixel structures and the second pixel structures are alternately arranged at first set intervals along the data line direction, and the first pixel structures and the second pixel structures are alternately arranged at second set intervals along the data line direction.
In a specific embodiment, the polarity of the pixel structure in the ith column is opposite to that of the pixel structure in the (i + 1) th column, and the voltage is applied to the pixel structure in the first driving mode or the second driving mode.
In a specific embodiment, the first driving manner includes a first sub-driving manner and a second sub-driving manner, and the voltages are alternately applied to the pixel structure in the first sub-driving manner or the second sub-driving manner at a first predetermined interval along the scanning line direction in one frame.
In a specific embodiment, the second driving manner includes a third sub-driving manner and a fourth sub-driving manner, and the voltages are alternately applied to the pixel structure in the third sub-driving manner or the fourth sub-driving manner at a second predetermined interval along the scanning line direction in one frame.
The present invention also provides a display panel, comprising:
a first substrate;
a second substrate located opposite to the first substrate;
the pixel unit according to any one of the above embodiments, disposed between the first substrate and the second substrate;
a liquid crystal material between the first substrate and the second substrate.
Compared with the prior art, the invention has the beneficial effects that:
The pixel unit comprises a first pixel structure and a second pixel structure, wherein an acute angle between a first branch electrode of the first pixel structure and a first main electrode is a first angle, and an acute angle between a second branch electrode of the second pixel structure and a second main electrode is a second angle, so that the phenomenon of whitening in side view is solved.
Drawings
Fig. 1 is a schematic diagram of a pixel unit structure according to an embodiment of the invention;
fig. 2 is a schematic view of a first pixel structure according to an embodiment of the invention;
fig. 3 is a schematic diagram of a second pixel structure according to an embodiment of the invention;
FIG. 4 is a schematic diagram of another pixel unit structure according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of another pixel unit structure according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of another pixel unit structure according to an embodiment of the present invention;
fig. 7 is a schematic view of a display panel structure according to an embodiment of the invention;
fig. 8 is a schematic view illustrating a result of observing a display panel according to an embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to specific examples, but the embodiments of the present invention are not limited thereto.
It should be noted that the terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Example one
Referring to fig. 1, fig. 1 is a schematic view of a pixel unit structure according to an embodiment of the present invention. The pixel structure of the embodiment includes:
the first pixel structure 101 includes a first main electrode 1011 and a first branch electrode 1012 connected to the first main electrode 1011, and an acute included angle between the first branch electrode 1012 and the first main electrode 1011 is a first angle;
the second pixel structure 102 includes a second stem electrode 1021 and a second branch electrode 1022 connected to the second stem electrode 1021, and an acute included angle between the second branch electrode 1022 and the second stem electrode 1021 is a second angle.
In one embodiment, the first angle is equal to or greater than 40 degrees and less than 45 degrees, and the second angle is equal to 45 degrees.
The pixel unit of this embodiment includes first pixel structure and second pixel structure, and the acute angle contained angle of the first branch electrode of first pixel structure and first trunk electrode is first angle, wherein, first angle more than or equal to 40 degrees, and be less than 45 degrees, the second branch electrode of second pixel structure is the second angle with the acute angle contained angle of second trunk electrode, wherein, the second angle equals 45 degrees, the whitish phenomenon that appears when looking sideways has been solved, and when guaranteeing to get rid of the whitish phenomenon, can also guarantee simultaneously that this pixel structure has higher transmissivity, thereby make to show more evenly, display effect has been promoted.
Preferably, the first angle is 42 degrees.
When the acute angle included angle between the first branch electrode and the first main electrode in the first pixel structure is 42 degrees and the acute angle included angle between the second branch electrode and the second main electrode in the second pixel structure is 45 degrees, the effect of removing the whitening phenomenon in side view is the best, and meanwhile, the pixel structure can be ensured to have higher transmittance.
In this embodiment, the first main electrode 1011 is a strip, the first branch electrodes 1012 are disposed on two sides of the first main electrode 1011, each first branch electrode 1012 is also a strip and is connected to the first main electrode 1011, a slit is formed between every two adjacent first branch electrodes 1012 and extends to the edge of the first pixel structure 101, and the slit is generally called an alignment slit.
In one embodiment, referring to fig. 2, the first main electrode 1011 is a cross-shaped electrode, the first main electrode 1011 divides the first pixel structure 101 into four first partitions, and two adjacent first branch electrodes 1012 in any one of the first partitions are parallel to each other.
In one embodiment, the first branch electrode 1012 and the first trunk electrode 1011 form a first angle with respect to the horizontal direction.
In one embodiment, referring to fig. 2, the first main electrode 1011 is a cross-shaped electrode, the cross-shaped electrode divides the first pixel structure 101 into four first partitions, namely a1, a2, A3, and a4, wherein the a1 partition is adjacent to the a2 partition and the A3 partition, and the first branch electrode 1012 in each first partition is connected to the first main electrode 1011, so that the electrodes are interconnected. For any one of the four first sub-regions, the inclination directions of all the first branch electrodes 1012 in each first sub-region are the same, that is, two adjacent first branch electrodes 1012 in any one first sub-region are parallel to each other.
Taking the a1 division as an example, the relative position of the a1 division is located at the upper left of the first pixel structure 101, and the inclination direction of the first branch electrode 1012 in the division is also inclined toward the upper left.
Preferably, the first branch electrodes 1012 in adjacent two first partitions are not parallel to each other.
That is, taking the a2 division as an example, the relative position of the a2 division is located at the upper right of the first pixel structure 101, and the inclination direction of the first branch electrode 1012 in the division is also inclined toward the upper right; taking the A3 division as an example, the relative position of the A3 division is located at the lower left of the first pixel structure 101, and the inclination direction of the first branch electrode 1012 in the division is also inclined toward the lower left, and taking the a4 division as an example, the relative position of the a4 division is located at the lower right of the first pixel structure 101, and the inclination direction of the first branch electrode 1012 in the division is also inclined toward the lower right; that is, the orientation of any one of the first branch electrodes 1012 in the a1 partition and any one of the first branch electrodes 1012 in the a2 partition is different, that is, the first branch electrode 1012 in the a1 partition is not parallel to the first branch electrode 1012 in the a2 partition, and likewise, the first branch electrode 1012 in the a1 partition is not parallel to the first branch electrode 1012 in the A3 partition. The arrangement of the electrodes in the above direction can improve the problem of color shift of display after voltage application.
In this embodiment, the second main electrode 1021 is a strip, the second branch electrodes 1022 are disposed on two sides of the second main electrode 1021, each second branch electrode 1022 is also a strip and is connected to the second main electrode 1021, a slit is formed between every two adjacent second branch electrodes 1022 and extends to an edge of the second pixel structure 102, and the slit is generally called an alignment slit.
In one embodiment, referring to fig. 3, the second stem electrode 1021 is a cross-shaped electrode, the second stem electrode 1021 divides the second pixel structure 102 into four second partitions, and two adjacent second branch electrodes 1022 in any one of the second partitions are parallel to each other.
In one embodiment, the included angle between the second branch electrode 1022 and the horizontal direction of the second stem electrode 1021 is a second angle.
In one embodiment, referring to fig. 3, the second stem electrode 1021 is a cross-shaped electrode, the cross-shaped electrode divides the second pixel structure 102 into four second partitions, i.e., a5, a6, a7, and A8, wherein the a5 partition is adjacent to the a6 partition and the a7 partition, and the second branch electrodes 1022 in each of the four second partitions are connected to the second stem electrode 1021, so as to interconnect and communicate the electrodes. For any one of the four second sub-areas, the inclination directions of all the second branch electrodes 1022 in each second sub-area are the same, that is, two adjacent second branch electrodes 1022 in any one second sub-area are parallel to each other.
Taking the a5 division as an example, the relative position of the a5 division is located at the upper left of the second pixel structure 102, and the tilt direction of the second branch electrode 1022 in the division is also tilted toward the upper left.
Preferably, the second branch electrodes 1022 in two adjacent second partitions are not parallel to each other.
That is, taking the a6 division as an example, the relative position of the a6 division is located at the upper right of the second pixel structure 102, and the inclination direction of the second branch electrode 1022 in the division is also inclined towards the upper right; taking the a7 division as an example, the relative position of the a7 division is located at the lower left of the second pixel structure 102, and the tilt direction of the second branch electrode 1022 in the division is also tilted toward the lower left, and taking the A8 division as an example, the relative position of the A8 division is located at the lower right of the second pixel structure 102, and the tilt direction of the second branch electrode 1022 in the division is also tilted toward the lower right; that is, the orientation of any one of the second branch electrodes 1022 in the a5 partition and any one of the second branch electrodes 1022 in the a6 partition are different, that is, the second branch electrode 1022 in the a5 partition is not parallel to the second branch electrode 1022 in the a7 partition, and likewise, the second branch electrode 1022 in the a5 partition is not parallel to the second branch electrode 1022 in the a7 partition. The arrangement of the electrodes in the above direction can improve the problem of color shift of display after voltage application.
Referring to fig. 4, fig. 4 is a schematic view of another pixel unit structure according to an embodiment of the present invention. The pixel unit of the embodiment of the invention further comprises:
and the switching element 203 is electrically connected with the data line 201 and the scanning line 202, and is also electrically connected with the first pixel structure and the second pixel structure respectively.
In this embodiment, please refer to fig. 4 again, the data line 201 is disposed perpendicular to the scan line 202, and it should be noted that, in this embodiment, the data line 201 and the scan line 202 are taken as an example to carry one first pixel structure 101 or one second pixel structure 102, in an actual display panel, one scan line 202 and one data line 201 are correspondingly carried and connected to a plurality of first pixel structures 101 or second pixel structures 102, the data line 201 is used to load a data driving signal to the first pixel structure 101 or the second pixel structure 102, and the data driving signal controls the first pixel structure 101 or the second pixel structure 102 to display colors of different gray scales according to the magnitude of the driving voltage; the scan line 202 is used for loading a scan driving signal to the first pixel structure 101 or the second pixel structure 102, and the scan driving signal controls whether a data driving signal is loaded to the first pixel structure 101 or the second pixel structure 102. In one embodiment, the data lines 201 and the scan lines 202 are generally made of a conductive material, and may be a metal element, an alloy, a metal oxide, a metal nitride, a metal oxynitride, or a combination of two or more of the foregoing materials.
For better explanation, the present embodiment will be described by taking the switching device 203 as a TFT (Thin Film Transistor), but the switching device 203 is not limited to this device as long as the function can be achieved. Specifically, the TFT includes a source electrode, a drain electrode, and a gate electrode, wherein the source electrode is connected to the data line 201, the gate electrode is connected to the scan line 202, and the drain electrode is connected to the first pixel structure 101 or the second pixel structure 102. When the pixel structure works, the scanning driving circuit generates scanning driving signals which are transmitted to the grid electrode of the TFT through the scanning lines so as to control the grid electrode to be conducted, at the moment, the data driving signals generated by the data driving circuit are transmitted to the source electrode of the TFT through the scanning lines, at the moment, the grid electrode of the TFT is conducted, and the data driving signals of the source electrode are input into the first pixel structure 101 or the second pixel structure 102 so as to complete one-time driving.
In one embodiment, a pixel unit comprises an X row and Y column pixel structure (0)<M≤X，0<N ≦ Y), for convenience of description, each pixel structure is labeled with the nth row and mth column of subpixels as a N,M For example, the first row and the first column of pixels have a structure of A 1,1 。
In a specific embodiment, the first pixel structures and the second pixel structures are alternately arranged at first set intervals along the data line direction, and the first pixel structures and the second pixel structures are alternately arranged at second set intervals along the scan line direction.
In one embodiment, when the first set interval is every other pixel structure along the data line direction, the pixel structure is a 1,N Is a first pixel structure of A 2,N Is a second pixel structure of A 3,N Is a first pixel structure of A 4,N The first pixel structure and the second pixel structure are arranged alternately along the direction of the data line and every other pixel structure by analogy; meanwhile, along the scanning line direction, when the second set interval is every other pixel structure, the pixel structure is a M,1 Is a first pixel structure of A M,2 Is a second pixel structure of A M,3 Is a first pixel structure of A M,4 And the first pixel structures and the second pixel structures are arranged alternately in the scanning line direction and in every other pixel structure by analogy.
For example, referring to fig. 1 again, along the data line direction, when the first set interval is every other pixel structure, the pixel structure is a 1,1 Is the second pixelStructure of a pixel structure of A 2,1 Is a first pixel structure of A 3,1 Is a second pixel structure of A 4,1 The first pixel structure and the second pixel structure are arranged alternately in the data line direction and every other pixel structure in the same order; meanwhile, along the scanning line direction, when the second set interval is every other pixel structure, the pixel structure is a 1,1 Is a second pixel structure of A 1,2 Is a first pixel structure of A 1,3 Is a second pixel structure of A 1,4 Is a first pixel structure of A 1,5 Is a second pixel structure of A 1,6 The first pixel structure and the second pixel structure are arranged alternately along the scanning line direction and every other pixel structure in the same order.
The first pixel structure and the second pixel structure in the pixel unit of the embodiment are arranged to be alternately distributed, so that the whitening phenomenon can be further removed when the side view is made, and meanwhile, the pixel unit can be ensured to have higher transmittance, so that the display is more uniform, and the display effect is further improved.
In this embodiment, the first setting interval and the second setting interval are set according to actual needs, and this embodiment is not particularly limited.
In one embodiment, the polarities of two adjacent rows of pixel structures are opposite, i.e., in a polarity row inversion manner, for example, when the polarity of the ith row of pixel structures is + - + - + -, the polarity of the corresponding ith +1 row of pixel structures is- + - + - + -.
In a specific embodiment, on the basis of the arrangement of the first pixel structure and the second pixel structure in the pixel unit, a voltage is applied to the pixel structure in the first driving manner or the second driving manner.
Further, the first driving mode comprises a first sub-driving mode and a second sub-driving mode, and the voltages are alternately applied to the pixel structures in the first sub-driving mode or the second sub-driving mode along the scanning line direction at a first preset interval in one frame.
In one embodiment, the data line D1 is connected to the pixel structure A M,1 And the corresponding voltage is the first driving voltage, the data line D2 is connected to the pixel structure A M,2 And the corresponding voltage is the second driving voltage, and the data line DN is connected with the pixel structure A M,N And from the pixel structure A M,2 To the pixel structure A M,Y-1 Alternatively loading the first driving voltage or the second driving voltage to the corresponding pixel structure every third set interval, and connecting the data line DY with the pixel structure A M,Y And the corresponding voltage is the first driving voltage, which is the first sub-driving mode, and the data line D1 is connected to the pixel structure a M+1,1 And the corresponding voltage is the second driving voltage, the data line D2 is connected to the pixel structure A M+1,2 And the corresponding voltage is the first driving voltage, and the slave pixel structure A M+1,2 To the pixel structure A M+1,Y-1 Alternatively loading the first driving voltage or the second driving voltage to the corresponding pixel structure every third set interval, and connecting the data line DY with the pixel structure A M+1,Y And the corresponding voltage is the second driving voltage, which is the second sub-driving mode. For example, the data line D1 is connected to the pixel structure A 1,1 And the corresponding voltage is the first driving voltage, and the data line D2 is connected to the pixel structure A 1,2 And the corresponding voltage is the second driving voltage, and the data line DN is connected with the pixel structure A 1,N And from the pixel structure A 1,2 To the pixel structure A 1,Y-1 Alternatively loading the first driving voltage or the second driving voltage to the corresponding pixel structure every third set interval, and connecting the data line DY with the pixel structure A 1,Y And the corresponding voltage is the first driving voltage, which is the first sub-driving mode, and when the first sub-driving mode applies voltage to the pixel structure corresponding to the scanning line G1, the second sub-driving mode applies voltage to the pixel structure corresponding to the scanning line G2; the data line D1 is connected with the pixel structure A 2,1 And the corresponding voltage is the second driving voltage, the data line D2 is connected to the pixel structure A 2,2 And the corresponding voltage is the first driveVoltage and from the pixel structure A 2,2 To the pixel structure A 2,Y-1 Alternatively loading the first driving voltage or the second driving voltage to the corresponding pixel structure every third set interval, and connecting the data line DY with the pixel structure A 2,Y And the corresponding voltage is the first driving voltage, and this mode is the second sub-driving mode. And by analogy, along the scanning line direction, correspondingly loading a voltage to the pixel structure alternately in a first sub-driving mode or a second sub-driving mode. In the present embodiment, the first predetermined interval, i.e., every other pixel structure in the scanning line direction, is that the adjacent scanning lines are alternately loaded with the first sub-driving scheme and the second sub-driving scheme.
In this embodiment, the first predetermined interval is every other pixel structure in the scanning line direction, that is, the third sub-driving mode and the fourth sub-driving mode are alternately loaded on the adjacent scanning lines.
In this embodiment, the first predetermined interval and the third predetermined interval are set according to actual needs, and this embodiment is not particularly limited.
In this embodiment, the first sub-driving manner and the fifth sub-driving manner are satisfied by applying a voltage to the pixel structure in an alternating manner.
For example, referring to fig. 6, an 8 × 12 pixel structure is taken as an example, that is, the pixel structure includes 8 rows and 12 columns, the first pixel structure and the second pixel structure are alternately arranged along the data line direction at a first set interval, the first pixel structure and the second pixel structure are alternately arranged along the scan line direction at a second set interval, wherein the first set interval and the second set interval are both every other pixel structure, the third set interval is every two pixel structures along the data line direction, the first predetermined interval is every other pixel structure along the scan line direction, and the pixel structure a is 1,1 A second pixel structure.
The data line D1 is connected with the pixel structure A 1,1 And the pixel structure A 1,1 The corresponding voltage is the first driving voltage, and the data line D2 and the data line D3 are respectively connected to the pixel structure A 1,2 And a pixel structure A 1,3 And the pixel structure A 1,2 And a pixel structure A 1,3 The corresponding voltages are the second driving voltages, and the data line D4 and the data line D5 are respectively connected to the pixel structure A 1,4 And a pixel structure A 1,5 And the pixel structure A 1,4 And a pixel structure A 1,5 Corresponding voltages are the first driving voltage, and so on, the data line D10 and the data line D11 are respectively connected to the pixel structure a 1,10 And a pixel structure A 1,11 And the pixel structure A 1,10 And a pixel structure A 1,11 The corresponding voltages are the second driving voltages, and the data line D12 is connected with the pixel structure A 1,12 And the pixel structure A 1,12 The corresponding voltage is a first driving voltage; meanwhile, the data line D1 is connected with the pixel structure A 2,1 And the pixel structure A 2,1 The corresponding voltage is the second driving voltage, and the data line D2 and the data line D3 are respectively connected to the pixel structure A 2,2 And a pixel structure A 2,3 And the pixel structure A 2,2 And a pixel structure A 2,3 The corresponding voltages are the first driving voltages, and the data line D4 and the data line D5 are respectively connected to the pixel structure A 2,4 And a pixel structure A 2,5 And the pixel structure A 2,4 And a pixel structure A 2,5 Corresponding voltages are the second driving voltage, and so on, the data line D10 and the data line D11 are respectively connected to the pixel structure a 2,10 And pixel structure A 2,11 And the pixel structure A 2,10 And a pixel structure A 2,11 The corresponding voltages are the first driving voltages, and the data line D12 is connected with the pixel structure A 2,12 And the pixel structure A 2,12 And the corresponding voltage is a second driving voltage, and by analogy, the voltage is loaded to the pixel structure alternately in a first sub-driving mode or a second sub-driving mode along the scanning line direction.
In an embodiment, the voltage is alternately applied to the pixel structure in the first sub-driving mode or the second sub-driving mode at a third predetermined interval along the scanning line direction, and the pixel unit utilizes a polarity column inversion mode, so that the white emission phenomenon can be further improved, and a high transmittance can be maintained.
On the basis of the pixel unit obtained in the embodiment, the voltage is loaded on the pixel structure of the pixel unit in the first driving mode, and meanwhile, the pixel unit utilizes a polarity column inversion mode, so that the white-out phenomenon can be further improved, meanwhile, higher transmittance can be maintained, the display is uniform, and the display effect is improved.
Further, the second driving manner includes a third sub-driving manner and a fourth sub-driving manner, and the voltages are alternately applied to the pixel structure in the third sub-driving manner or the fourth sub-driving manner at a second predetermined interval along the scanning line direction.
In one embodiment, in the scan line direction, the slave pixel structure A M1 To the pixel structure A MY And alternately applying the first driving voltage or the second driving voltage to the corresponding pixel structure at every fourth set interval, for example: when the fourth set interval is every two pixel structures, the data line D1 and the data line D2 are respectively connected to the pixel structure a M,1 And a pixel structure A M,2 Pixel structure A M,1 And a pixel structure A M,2 The corresponding voltages are the first driving voltages, and the data line D3 and the data line D4 are respectively connected to the pixel structure A M,3 And a pixel structure A M,4 Pixel structure A M,3 And a pixel structure A M,4 The corresponding voltages are the second driving voltages, and the data line D5 and the data line D6 are respectively connected to the pixel structure A M,5 And a pixel structure A M,6 Pixel structure A M,5 And a pixel structure A M,6 Corresponding voltages are the first driving voltage, and so on, the mode is the third sub-driving mode, and meanwhile, the data line D1 and the data line D2 are respectively connected to the pixel structure a M+1,1 And a pixel structure A M+1,2 Pixel structure A M+1,1 And a pixel structure A M+1,2 The corresponding voltages are the second driving voltages, and the data line D3 and the data line D4 are respectively connected to the pixel structure A M+1,3 And a pixel structure A M+1,4 Pixel structure A M+1,3 And a pixel structure A M+1,4 The corresponding voltages are the first driving voltages, and the data line D5 and the data line D6 are respectively connected to the pixel structure A M+1,5 And a pixel structure A M+1,6 Pixel structure A M+1,5 And a pixel structure A M+1,6 The corresponding voltages are all second driving voltages which are similar in sequenceThis way is the fourth sub-driving way. And alternately applying a voltage to the pixel structure in a third sub-driving mode or a fourth sub-driving mode along the scanning line direction. For example, the data line D1 and the data line D2 are respectively connected to the pixel structure A 11 And a pixel structure A 12 Pixel structure A 11 And a pixel structure A 12 The data line D3 and the data line D4 are respectively connected to the pixel structure A 1,3 And a pixel structure A 1,4 Pixel structure A 1,3 And a pixel structure A 1,4 The data line D5 and the data line D6 are respectively connected to the pixel structure A 1,5 And a pixel structure A 1,6 Pixel structure A 1,5 And a pixel structure A 1,6 The voltage of the scanning line G2 is a first driving voltage, and the like, namely, a third sub-driving mode, and meanwhile, when a voltage is applied to the pixel structure corresponding to the scanning line G1 in the third sub-driving mode, a voltage is applied to the pixel structure corresponding to the scanning line G2 in the fourth sub-driving mode; the data line D1 and the data line D2 are respectively connected with the pixel structure A 2,1 And a pixel structure A 2,2 Pixel structure A 2,1 And a pixel structure A 2,2 The data line D3 and the data line D4 are respectively connected to the pixel structure A 2,3 And a pixel structure A 2,4 Pixel structure A 2,3 And pixel structure A 2,4 The data line D5 and the data line D6 are respectively connected to the pixel structure A 2,5 And a pixel structure A 2,6 Pixel structure A 2,5 And a pixel structure A 2,6 The voltage of the first sub-driving mode is the first driving voltage, and so on, and the fourth sub-driving mode is the same. And by analogy, along the scanning line direction, correspondingly loading a voltage to the pixel structure alternately in a third sub-driving mode or a fourth sub-driving mode. In this embodiment, the second predetermined interval, i.e. every other pixel structure in the scanning line direction, is to alternately load the third sub-driving manner and the fourth sub-driving manner on the adjacent scanning lines.
In this embodiment, the second predetermined interval is every other pixel structure in the scanning line direction, that is, the third sub-driving mode and the fourth sub-driving mode are alternately loaded on the adjacent scanning lines.
In this embodiment, the second predetermined interval and the fourth setting interval are set according to actual needs, and this embodiment is not particularly limited.
In this embodiment, the third sub-driving method and the fourth sub-driving method are sufficient to apply a voltage to the pixel structure in an alternating manner.
For example, referring to fig. 6, an 8 × 12 pixel structure is taken as an example, that is, the pixel structure includes 8 rows and 12 columns, the first pixel structure and the second pixel structure are alternately arranged along the data line direction at a first set interval, the first pixel structure and the second pixel structure are alternately arranged along the scan line direction at a second set interval, wherein the first set interval and the second set interval are both every other pixel structure, the fourth set interval is every other pixel structure along the data line direction, the second predetermined interval is every other pixel structure along the scan line direction, and the pixel structure a is 1,1 A second pixel structure.
The data line D1 and the data line D2 are respectively connected with the pixel structure A 1,1 And a pixel structure A 1,2 Pixel structure A 1,1 And a pixel structure A 1,2 The corresponding voltages are the first driving voltages, and the data line D3 and the data line D4 are respectively connected to the pixel structure A 1,3 And a pixel structure A 1,4 Pixel structure A 1,3 And a pixel structure A 1,4 The corresponding voltages are the second driving voltages, and the data line D5 and the data line D6 are respectively connected to the pixel structure A 1,5 And a pixel structure A 1,6 Pixel structure A 1,5 And a pixel structure A 1,6 The corresponding voltage is the first driving voltage, and so on, the data line D11 and the data line D12 are respectively connected to the pixel structure a 1,11 And a pixel structure A 1,12 Pixel structure A 1,11 And a pixel structure A 1,12 The corresponding voltages are second driving voltages; the data line D1 and the data line D2 are respectively connected with the pixel structure A 2,1 And a pixel structure A 2,2 Pixel structure A 1,1 And a pixel structure A 1,2 The corresponding voltages are the second driving voltages, and the data line D3 and the data line D4 are respectively connected with the pixelsStructure A 2,3 And a pixel structure A 2,4 Pixel structure A 2,3 And a pixel structure A 2,4 The corresponding voltages are the first driving voltages, and the data line D5 and the data line D6 are respectively connected to the pixel structure A 2,5 And a pixel structure A 2,6 Pixel structure A 2,5 And a pixel structure A 2,6 The corresponding voltage is the second driving voltage, and so on, the data line D11 and the data line D12 are respectively connected to the pixel structure a 2,11 And pixel structure A 2,12 Pixel structure A 2,11 And a pixel structure A 2,12 And the corresponding voltages are the first driving voltages, and by analogy, the voltages are alternately and correspondingly loaded on the pixel structure in a first sub-driving mode or a second sub-driving mode along the scanning line direction.
In an embodiment, the voltage is alternately applied to the pixel structure in the third sub-driving mode or the fourth sub-driving mode at a second predetermined interval along the scanning line direction, and the pixel unit utilizes a polarity column inversion mode, so that the white emission phenomenon can be further improved, and a high transmittance can be maintained.
On the basis of the pixel unit obtained in the embodiment, the voltage is loaded on the pixel structure of the pixel unit in the second driving mode, and meanwhile, the pixel unit utilizes a polarity column inversion mode, so that the white-out phenomenon can be further improved, meanwhile, higher transmittance can be maintained, the display is uniform, and the display effect is improved.
In this embodiment, first gray scale data and second gray scale data are formed according to original pixel data, pixel gray scales of the first gray scale data and the second gray scale data are made different, a first driving voltage is generated according to the first gray scale data, and a second driving voltage is generated according to the second gray scale data; and loading the first driving voltage or the second driving voltage to the pixel structure along the direction of the data line in one frame. In this way, the voltage loaded on the pixel structure can be prevented from being influenced by polarity inversion, so that crosstalk and bright and dark lines are prevented.
In a specific example, the first gray scale data is regarded as high gray scale data, the second gray scale data is regarded as low gray scale data, and correspondingly, the voltage input to the pixel structure is determined by the gray scale, and a high gray scale voltage corresponding to the high gray scale data, namely a first driving voltage, is generated; it should be noted that the low gray scale voltage corresponding to the low gray scale data, i.e. the second driving voltage, represents the relative values of the two gray scales, and the values are not limited separately.
On the basis of the pixel unit obtained in the embodiment, voltages are loaded on different pixel structures of the pixel unit by the first driving voltage and the second driving voltage, and meanwhile, the pixel unit utilizes a polarity column inversion mode, so that the white emission phenomenon can be further improved, meanwhile, higher transmittance can be maintained, the display is uniform, and the display effect is improved.
Referring to fig. 7, an embodiment of the present invention further provides a display panel, including:
a first substrate 11;
a second substrate 12 located opposite to the first substrate 11;
the pixel unit 14 according to the embodiment of the present invention is disposed between the first substrate and the second substrate;
a liquid crystal material 13 located between the first substrate and the second substrate.
The first substrate and the second substrate may be made of semiconductor materials such as glass and quartz, or organic polymers, and the material of the first substrate may be the same as or different from that of the second substrate. The main component of the liquid crystal material 13 is liquid crystal molecules, and the liquid crystal molecules are correspondingly arranged between two adjacent branch electrodes in each pixel unit, so that the liquid crystal molecules can achieve better alignment after voltage is applied, the light transmittance is improved, and the display effect is further improved.
The pixel unit and the display panel of the embodiment of the invention can achieve the dual purposes of improving the white phenomenon of the visual angle and maintaining higher transmittance without changing the processing conditions.
Referring to fig. 8, the abscissa corresponds to gray scale, the ordinate corresponds to a value after brightness normalization, 45 degrees and Azimuth0 represent a display panel with an included angle of 45 degrees between a branch electrode and a main electrode in the conventional design, the observation angle is front view, 45 degrees and Azimuth60 represent a display panel with an included angle of 45 degrees between a branch electrode and a main electrode in the conventional design, the observation angle is 60 degrees between the branch electrode and the main electrode, 42+45 degrees and Azimuth0 represent a display panel according to an embodiment of the present invention, the observation angle is front view, 42+45 degrees and Azimuth60 represent a display panel according to an embodiment of the present invention, the observation angle is 60 degrees between a first branch electrode and a first main electrode of a first pixel structure, and an included angle between a second branch electrode and a second main electrode of a second pixel structure, and the observation angle is front view, 42+45 degrees and Azimuth60 represent a display panel according to an embodiment of the present invention. When the display panel provided by the embodiment of the invention is observed at a viewing angle of 60 degrees, the transmittance of the display panel is 4.4 percent lower than that of the conventional design that the included angle between the branch electrode and the main electrode in the existing display panel is 45 degrees under the gray scale of 128 degrees, and the gamma (gamma) curve of the display panel is closer to that of an orthographic gamma 2.2; in the front view direction, the transmittance of the pixel structure of the display panel provided by the embodiment of the invention is only 0.38% lower than that of the pixel structure of the display panel in the existing design, and the reduction amplitude is small, so that the aim of maintaining high transmittance can be fulfilled while the phenomenon of whitish viewing angle is effectively improved.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other manners. For example, the above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and the actual implementation may have another division, for example, multiple units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several simple deductions or substitutions can be made without departing from the spirit of the invention, and all shall be considered as belonging to the protection scope of the invention.
Claims (6)
1. A pixel cell comprising a plurality of pixel structures, the pixel structures comprising:
the first pixel structure comprises a first main electrode and a first branch electrode connected with the first main electrode, wherein an acute included angle between the first branch electrode and the first main electrode is a first angle which is more than or equal to 40 degrees and less than 45 degrees;
the second pixel structure comprises a second main electrode and a second branch electrode connected with the second main electrode, and an acute included angle between the second branch electrode and the second main electrode is a second angle which is equal to 45 degrees;
data lines, scanning lines;
the switch part is electrically connected with the data line and the scanning line and is also electrically connected with the first pixel structure and the second pixel structure respectively;
one pixel unit comprises X rows and Y columns of pixel structures, wherein M is more than 0 and less than or equal to X, and N is more than 0 and less than or equal to Y;
the first pixel structures and the second pixel structures are alternately arranged along the data line direction at first set intervals, and the first pixel structures and the second pixel structures are alternately arranged along the scanning line direction at second set intervals;
The polarity of the pixel structures in the ith column is opposite to that of the pixel structures in the (i + 1) th column, and a voltage is loaded to the pixel structures in a first driving mode or a second driving mode;
the first driving mode comprises a first sub-driving mode and a second sub-driving mode, and voltages are alternately loaded to the pixel structure in the first sub-driving mode or the second sub-driving mode along the scanning line direction at first preset intervals in one frame;
the data line D1 is connected to the pixel structure A M,1 And the corresponding voltage is the first driving voltage, the data line D2 is connected to the pixel structure A M,2 And the corresponding voltage is the second driving voltage, and the data line DN is connected with the pixel structure A M,N And from the pixel structure A M,2 To the pixel structure A M,Y-1 Alternatively loading the first driving voltage or the second driving voltage to the corresponding pixel structure every third set interval, and connecting the data line DY with the pixel structure A M,Y And the corresponding voltage is the first driving voltage, and the mode is the first sub-driving mode; the data line D1 is connected with the pixel structure A M+1,1 And the corresponding voltage is the second driving voltage, the data line D2 is connected to the pixel structure A M+1,2 And the corresponding voltage is the first driving voltage, and the slave pixel structure A M+1,2 To the pixel structure A M+1,Y-1 Alternatively loading the first driving voltage or the second driving voltage to the corresponding pixel structure every third set interval, and connecting the data line DY with the pixel structure A M+1,Y And the corresponding voltage is the second driving voltage, and the mode is the second sub-driving mode;
the second driving mode comprises a third sub-driving mode and a fourth sub-driving mode, and voltages are alternately loaded to the pixel structure in the third sub-driving mode or the fourth sub-driving mode along the scanning line direction at a second preset interval in one frame;
in the scanning line direction, the slave pixel structure A M1 To the pixel structure A MY Alternately applying the first driving voltage or the second driving voltage to the corresponding pixel structure at every fourth set interval, and when the pixel structure A is in the first set interval M,1 When the corresponding voltage is the first driving voltage, it is the third sub-driving mode, and when the pixel structure is in the first stateA M+1,1 And when the corresponding voltage is the second driving voltage, the fourth sub-driving mode is obtained.
2. The pixel unit according to claim 1, wherein the first trunk electrode is a cross-shaped electrode, the cross-shaped electrode divides the first pixel structure into four first partitions, and two adjacent first branch electrodes in any one first partition are parallel to each other.
3. The pixel cell according to claim 2, wherein the first branch electrodes in two adjacent first partitions are not parallel to each other.
4. The pixel unit according to claim 1, wherein the second main electrode is a cross-shaped electrode, the cross-shaped electrode divides the second pixel structure into four second sub-regions, and two adjacent second branch electrodes in any one second sub-region are parallel to each other.
5. The pixel cell according to claim 4, wherein the second branch electrodes in two adjacent second partitions are not parallel to each other.
6. A display panel, comprising:
a first substrate;
a second substrate located opposite to the first substrate;
the pixel cell of any one of claims 1-5 disposed between the first substrate and the second substrate;
a liquid crystal material between the first substrate and the second substrate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811125644.8A CN110955088B (en) | 2018-09-26 | 2018-09-26 | Pixel unit and display panel |
| US16/556,356 US11092858B2 (en) | 2018-09-26 | 2019-08-30 | Pixel structure and pixel unit |
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| CN201811125644.8A CN110955088B (en) | 2018-09-26 | 2018-09-26 | Pixel unit and display panel |
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| US20110310335A1 (en) * | 2009-02-10 | 2011-12-22 | Yoshito Hashimoto | Liquid crystal display device |
| CN101726952B (en) * | 2009-12-30 | 2011-11-16 | 昆山龙腾光电有限公司 | Liquid crystal display panel and liquid crystal display device |
| CN101866086B (en) * | 2010-06-08 | 2011-11-09 | 友达光电股份有限公司 | Active element array substrate |
| CN102944955A (en) * | 2012-11-05 | 2013-02-27 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device employing same |
| CN106444174B (en) * | 2016-08-30 | 2019-12-31 | 深圳市华星光电技术有限公司 | Pixel electrode |
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