CN109188792B - Pixel electrode unit, display panel and display device - Google Patents

Pixel electrode unit, display panel and display device Download PDF

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CN109188792B
CN109188792B CN201811162040.0A CN201811162040A CN109188792B CN 109188792 B CN109188792 B CN 109188792B CN 201811162040 A CN201811162040 A CN 201811162040A CN 109188792 B CN109188792 B CN 109188792B
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pixel electrode
trunk
electrode unit
electrode
unit
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CN109188792A (en
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单剑锋
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HKC Co Ltd
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HKC Co Ltd
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Priority to PCT/CN2018/117309 priority patent/WO2020062524A1/en
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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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/133707—Structures for producing distorted electric fields, e.g. bumps, protrusions, recesses, slits in pixel electrodes

Abstract

The invention relates to a pixel electrode unit, a display panel and a display device. The pixel electrodeA pole unit formed by setting the width of the electrode to WR＞WG＞WBThe liquid crystal molecules corresponding to different pixel electrode units form different pretilt angles and operating angles, and the final red light transmittance, green light transmittance and blue light transmittance of the liquid crystal layer are equal, so that the voltage red light transmittance curve, the voltage green light transmittance curve and the voltage blue light transmittance curve are overlapped and consistent, white points of gray scales of displayed images are balanced and consistent, and the displayed images have vivid color expression.

Description

Pixel electrode unit, display panel and display device
Technical Field
The invention relates to the technical field of display, in particular to a pixel electrode unit, a display panel and a display device.
Background
With the rapid development of multimedia technology, the display device also has a dramatic progress, and the user requirement is higher and higher, so the liquid crystal panel has a higher and higher requirement for the consistency of the color accuracy of each gray scale, especially the white point coordinates of each gray scale are expected to be the same, so that consumers can really enjoy vivid color representation when watching the film.
However, since the thickness of the blue film is the largest among the color films of a typical display, followed by the thickness of the green film, followed by the thickness of the red film, the cell gap is defined/monitored/measured by the thickness of the green film, so that the defined/monitored/measured liquid crystal layer gap is different from the actual liquid crystal layer gap, further, Δ nd is affected to affect the transmittance of the liquid crystal layer, and finally the voltage transmittance curves (V-T) of red (R)/green (G)/blue (B) are different (see fig. 1, wherein Tr-R is the voltage red transmittance curve, Tr-G is the voltage green transmittance curve, and Tr-B is the voltage blue transmittance curve, and it can be seen from the curves that the red transmittance > the green transmittance > the blue transmittance under the same gray scale voltage, so that the white points of the gray scales are not consistent.
Disclosure of Invention
Accordingly, it is desirable to provide a pixel electrode unit, a pixel electrode array, a display panel and a display device, which can improve the transmittance of a liquid crystal layer, and make the V-T curves of R/G/B overlapped and consistent, so as to balance the white point of each gray scale.
In order to realize the purpose of the invention, the invention adopts the following technical scheme:
a pixel electrode unit of a display panel, comprising:
the pixel structure comprises a first pixel electrode unit, a second pixel electrode unit and a third pixel electrode unit, wherein the first pixel electrode unit, the second pixel electrode unit and the third pixel electrode unit respectively allow light of three colors of red, green and blue to pass through;
wherein, the electrode width of the main electrode of the first pixel electrode unit is WRThe electrode width of the main electrode of the second pixel electrode unit is WGThe electrode width of the main electrode of the third pixel electrode unit is WB，WR＞WG＞WB。
In one embodiment, W isR＞WG＞WBIn, WRIs 120% WG～125％WG，WBIs 75% WG～80％WG。
In one embodiment, the first pixel electrode unit trunk electrode includes a first trunk pixel electrode and a second trunk pixel electrode, the first trunk pixel electrode and the second trunk pixel electrode intersect, and a plurality of liquid crystal alignment regions are formed;
the second pixel electrode unit trunk electrode comprises a third trunk pixel electrode and a fourth trunk pixel electrode, the third trunk pixel electrode and the fourth trunk pixel electrode are intersected, and a plurality of liquid crystal alignment areas are formed;
the third pixel electrode unit trunk electrode comprises a fifth trunk pixel electrode and a sixth trunk pixel electrode, wherein the fifth trunk pixel electrode and the sixth trunk pixel electrode are intersected and a plurality of liquid crystal alignment areas are formed.
In one embodiment, the first and second main pixel electrodes are perpendicular to each other and are formed with four liquid crystal alignment regions;
the third main pixel electrode and the fourth main pixel electrode are vertical to each other and four liquid crystal alignment regions are formed;
the fifth main pixel electrode and the sixth main pixel electrode are perpendicular to each other, and four liquid crystal alignment regions are formed.
In one embodiment, the first pixel electrode unit further includes a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the first main pixel electrode and the second main pixel electrode;
the second pixel electrode unit further comprises a plurality of branch electrodes, and one end of each branch electrode is connected with at least one of the third main pixel electrode and the fourth main pixel electrode;
the third pixel electrode unit further includes a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the fifth main pixel electrode and the sixth main pixel electrode.
In one embodiment, the width of the stem electrode of the first pixel electrode unit is WrThe width of the branch electrode of the second pixel electrode unit is WgThe electrode width of the branch electrode of the third pixel electrode unit is Wb，Wr＞Wg＞Wb。
In one embodiment, the stem electrodes are arranged at an oblique angle with respect to the stem electrodes connected thereto.
A pixel electrode unit of a display panel, comprising:
the pixel structure comprises a first pixel electrode unit, a second pixel electrode unit and a third pixel electrode unit, wherein the first pixel electrode unit, the second pixel electrode unit and the third pixel electrode unit respectively allow light of three colors of red, green and blue to pass through;
wherein, the electrode width of the main electrode of the first pixel electrode unit is WR, and the electrode width of the main electrode of the second pixel electrode unit is WGThe electrode width of the main electrode of the third pixel electrode unit is WB，WRIs 120% WG～125％WG，WBIs 75% WG～80％WG；
The first pixel electrode unit trunk electrode comprises a first trunk pixel electrode and a second trunk pixel electrode, the first trunk pixel electrode and the second trunk pixel electrode are intersected, and a plurality of liquid crystal alignment areas are formed; the second pixel electrode unit trunk electrode comprises a third trunk pixel electrode and a fourth trunk pixel electrode, the third trunk pixel electrode and the fourth trunk pixel electrode are intersected, and a plurality of liquid crystal alignment areas are formed; the third pixel electrode unit trunk electrode comprises a fifth trunk pixel electrode and a sixth trunk pixel electrode, wherein the fifth trunk pixel electrode and the sixth trunk pixel electrode are intersected and a plurality of liquid crystal alignment areas are formed.
In order to realize the purpose of the invention, the invention also adopts the following technical scheme:
a display panel comprises a plurality of pixel electrode units.
In order to realize the purpose of the invention, the invention also adopts the following technical scheme:
a display device comprising a display panel as described above.
The pixel electrode unit is formed by setting the electrode width to WR＞WG＞WBThe liquid crystal molecules corresponding to different pixel electrode units form different pretilt angles and operating angles, and the final red light transmittance, green light transmittance and blue light transmittance of the liquid crystal layer are equal, so that the voltage red light transmittance curve, the voltage green light transmittance curve and the voltage blue light transmittance curve are overlapped and consistent, white points of gray scales of liquid crystal display images are balanced and consistent, and the displayed images have vivid color expression.
The display panel has the consistency of the color accuracy of each gray scale, particularly the balance of white points of each gray scale, and has vivid color expression.
The display device has the advantages that the displayed images have the consistency of the color accuracy of each gray scale, and particularly, the white point balance of each gray scale is consistent, so that consumers can really enjoy vivid color expression when watching films.
Drawings
FIG. 1 is a graph of voltage transmittance for R/G/B;
FIG. 2 is a schematic diagram of a pixel electrode unit according to an embodiment;
FIG. 3 is another R/G/B voltage transmittance graph;
FIG. 4 is a schematic diagram of a detailed structure of the pixel electrode unit in the embodiment shown in FIG. 2;
fig. 5 is a schematic diagram of a detailed structure of the pixel electrode unit in the embodiment shown in fig. 2.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.
Referring to fig. 2, fig. 2 is a schematic structural diagram of a pixel electrode unit in an embodiment.
The embodiment provides a pixel electrode unit of a liquid crystal display panel, which includes a first pixel electrode unit 101, a second pixel electrode unit 102, and a third pixel electrode unit 103 that allow light of three colors, red, green, and blue, to transmit, respectively, that is, the first pixel electrode unit 101, the second pixel electrode unit 102, and the third pixel electrode unit 103 respectively correspond to red, green, and blue in a color film RGB mode, and correspondingly display different color lights.
The first pixel electrode unit 101, the second pixel electrode unit 102, and the third pixel electrode unit 103 each include a trunk electrode, and an electrode width of the trunk electrode 11 of the first pixel electrode unit 101 is WRThe electrode width of the main electrode 12 of the second pixel electrode unit 102 is WGThe third pixel electrodeThe electrode width of the trunk electrode 13 of the cell 103 is WB，WR＞WG＞WB. In one embodiment, the width of the first pixel electrode unit 101 at each position of the trunk electrode 11 is equal, the width of the second pixel electrode unit 102 at each position of the trunk electrode 12 is equal, and the width of the third pixel electrode unit 103 at each position of the trunk electrode 13 is equal. It should be noted that the widths of the trunk electrodes of the same pixel electrode unit at different positions may not be equal, but all satisfy WR＞WG＞WB。
In the embodiment of the invention, the electrode width W of the main electrode 11 of the first pixel electrode unit 101RThe electrode width W of the main electrode 12 of the second pixel electrode unit 102GAnd the electrode width W of the main electrode 13 of the third pixel electrode unit 103BAre all different and are WR＞WG＞WB. Since the width of the trunk electrode 11 is the largest, the width of the trunk electrode 12 is the second, and the width of the trunk electrode 13 is the smallest, the thickness of the liquid crystal box corresponding to the first pixel electrode unit 101 is larger than that of the liquid crystal box corresponding to the second pixel electrode unit 102, and the interval of the box thickness is also widened, so that the pretilt angle and the running angle of the liquid crystal are reduced, the aperture opening ratio is correspondingly reduced, and the penetration rate corresponding to the first pixel electrode unit 101 is reduced; the liquid crystal cell thickness corresponding to the third pixel electrode unit 103 is smaller than the liquid crystal cell thickness corresponding to the second pixel electrode unit 102, and the interval of the cell thickness is also narrowed, so that the pretilt angle and the running angle of the liquid crystal are increased, the aperture opening ratio is correspondingly increased, and the penetration rate corresponding to the third pixel electrode unit 103 is increased accordingly. Thus, by setting WR＞WG＞WBThe liquid crystal molecules corresponding to different pixel electrode units form different pretilt angles and running angles, the problem that the red light transmittance is larger than the green light transmittance and the blue light transmittance under the same gray scale voltage due to the difference between the defined/monitored/measured liquid crystal layer gap and the actual liquid crystal layer gap can be solved, the final red light transmittance, the green light transmittance and the blue light transmittance of the liquid crystal layer corresponding to the main electrode are equal, and therefore, the voltage red light transmittance curve, the voltage green light transmittance curve and the voltage blue light transmittance are equalThe transmittance curves are overlapped and consistent (as shown in fig. 3, wherein Tr-R is a voltage red transmittance curve, Tr-G is a voltage green transmittance curve, and Tr-B is a voltage blue transmittance curve), white point balance of each gray level of the liquid crystal display image is consistent, and the display image has vivid color expression. Wherein, WR、WG、WBThe specific values are adjusted and set based on the overlapping of the voltage red light transmittance curve, the voltage green light transmittance curve and the voltage blue light transmittance curve, wherein in one embodiment, W isRIs 120% WG～125％WG，WBIs 75% WG～80％WG. For example, WR＝12μm，WG＝10μm，WBThe red light transmittance, the green light transmittance and the blue light transmittance of the final liquid crystal layer can be equal to 8 mu m, and the white points of the gray scales of the liquid crystal display image are balanced and consistent.
The pixel electrode unit provided by the embodiment of the invention is provided with WR＞WG＞WBThe liquid crystal molecules corresponding to different pixel electrode units form different pretilt angles and operating angles, and the final red light transmittance, green light transmittance and blue light transmittance of the liquid crystal layer are equal, so that the voltage red light transmittance curve, the voltage green light transmittance curve and the voltage blue light transmittance curve are overlapped and consistent, white points of gray scales of liquid crystal display images are balanced and consistent, and the displayed images have vivid color expression.
Referring to fig. 4 and 5, fig. 4 and 5 are schematic diagrams illustrating a detailed structure of the pixel electrode unit in the embodiment shown in fig. 2.
In the embodiment of the present invention, the first pixel electrode unit 101 includes a first main pixel electrode 111 and a second main pixel electrode 112, and the first main pixel electrode 111 intersects with the second main pixel electrode 112 and is formed with a plurality of liquid crystal alignment regions; the second pixel electrode unit 102 includes a third main pixel electrode 121 and a fourth main pixel electrode 122, where the third main pixel electrode 121 and the fourth main pixel electrode 122 intersect each other and form a plurality of liquid crystal alignment regions; the third pixel electrode unit 103 includes a fifth main pixel electrode 131 and a sixth main pixel electrode 132, where the fifth main pixel electrode 131 and the sixth main pixel electrode 132 intersect with each other and form a plurality of liquid crystal alignment regions.
In one embodiment, as shown in fig. 4, the first and second main pixel electrodes 111 and 112 are perpendicular to each other and are formed with four liquid crystal alignment regions; the third main pixel electrode 121 and the fourth main pixel electrode 122 are perpendicular to each other, and four liquid crystal alignment regions are formed; the fifth and sixth main pixel electrodes 131 and 132 are perpendicular to each other, and four liquid crystal alignment regions are formed.
In the embodiment of the present invention, the first pixel electrode unit 101 further includes a plurality of branch electrodes 21, and one end of each branch electrode 21 is connected to at least one of the first main pixel electrode 111 and the second main pixel electrode 112; the second pixel electrode unit 102 further includes a plurality of branch electrodes 22, and one end of each branch electrode 22 is connected to at least one of the third main pixel electrode 121 and the fourth main pixel electrode 122; the third pixel electrode unit 103 further includes a plurality of branch electrodes 23, and one end of each branch electrode 23 is connected to at least one of the fifth main pixel electrode 131 and the sixth main pixel electrode 132.
In one embodiment, the stem electrode 21 of the first pixel electrode unit 101 has a width WrThe electrode width of the stem electrode 22 of the second pixel electrode unit 102 is WgThe electrode width of the stem electrode 23 of the third pixel electrode unit 103 is Wb，Wr＞Wg＞Wb. In one embodiment, the stem electrode 21 has the same width at each position, the stem electrode 22 has the same width at each position, and the stem electrode 23 has the same width at each position. By setting Wr＞Wg＞WbThe liquid crystal molecules corresponding to different branch electrodes form different pretilt angles and running angles, the problem that the red light transmittance is larger than the green light transmittance and larger than the blue light transmittance of a liquid crystal layer corresponding to the branch electrodes because the defined/monitored/measured liquid crystal layer gap is different from the actual liquid crystal layer gap can be solved, and the final red light transmittance, green light transmittance and blue light transmittance of the liquid crystal layer corresponding to the branch electrodes are equal, so that the liquid crystal molecules corresponding to different branch electrodes form different pretilt angles and running angles, and the problem that the red light transmittance, the green light transmittance and the blue light transmittanceThe voltage red light penetration rate curve, the voltage green light penetration rate curve and the voltage blue light penetration rate curve are overlapped and consistent, and the display effect of the display image is optimized.
In one embodiment, the stem electrodes extend at an oblique angle relative to the stem electrodes connected thereto. Namely, the branch electrode is connected with the main electrode, and an inclination angle is formed between the branch electrode and the main electrode, and the branch electrode extends along the inclination angle direction. Each pixel electrode unit forms four liquid crystal alignment areas with different alignment directions according to different extension directions of the branch electrode, and the arrangement of each branch electrode in the four liquid crystal alignment areas is symmetrical relative to the main electrode, so that the electric field distribution effect of the pixel electrode unit is optimized, and the liquid crystal direction is further optimized. For convenience of description, as shown in fig. 5, the arrangement of the stem electrode is explained by taking the first liquid crystal alignment region 1011 of the first pixel electrode unit 101 as an example. The first and second stem electrodes 211 and 212 are alternately arranged in the first liquid crystal alignment region 1011. One end of each of the first branch electrode 211 and the second branch electrode 212 is connected to at least one of the first main pixel electrode 111 and the second main pixel electrode 112. The first stem electrode 211 and the second stem electrode 212 both extend to the edge of the first liquid crystal alignment region 1011 along the first direction. Wherein the first direction may be, but is not limited to, a direction extending from bottom left to top right.
The pixel electrode unit provided by the embodiment of the invention can enable the final red light transmittance, green light transmittance and blue light transmittance of the liquid crystal layer to be equal, so that the voltage red light transmittance curve, the voltage green light transmittance curve and the voltage blue light transmittance curve are overlapped and consistent, white points of gray scales of liquid crystal display images are balanced and consistent, and the display images have vivid color expression.
An embodiment of the present invention provides a display panel, which includes a plurality of pixel electrode units as described in the above embodiments. Specifically, the display panel may be a liquid crystal display panel. The display panel has the consistency of the color accuracy of each gray scale, particularly the balance of white points of each gray scale, and has vivid color expression.
An embodiment of the present invention provides a display device, which includes the display panel of the previous embodiment. The displayed image of the display device has the consistency of the color accuracy of each gray scale, particularly the white point balance of each gray scale is consistent, so that consumers can really enjoy vivid color expression when watching films.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A pixel electrode unit of a display panel, comprising:
the pixel structure comprises a first pixel electrode unit, a second pixel electrode unit and a third pixel electrode unit, wherein the first pixel electrode unit, the second pixel electrode unit and the third pixel electrode unit respectively allow light of three colors of red, green and blue to pass through;
wherein, the electrode width of the main electrode of the first pixel electrode unit is WRThe electrode width of the main electrode of the second pixel electrode unit is WGThe electrode width of the main electrode of the third pixel electrode unit is WB，WR＞WG＞WB；
Specifically, the first pixel electrode unit trunk electrode includes a first trunk pixel electrode and a second trunk pixel electrode, the first trunk pixel electrode and the second trunk pixel electrode intersect with each other, and a plurality of liquid crystal alignment regions are formed;
the second pixel electrode unit trunk electrode comprises a third trunk pixel electrode and a fourth trunk pixel electrode, the third trunk pixel electrode and the fourth trunk pixel electrode are intersected, and a plurality of liquid crystal alignment areas are formed;
the third pixel electrode unit trunk electrode comprises a fifth trunk pixel electrode and a sixth trunk pixel electrode, the fifth trunk pixel electrode and the sixth trunk pixel electrode are intersected, and a plurality of liquid crystal alignment areas are formed.
2. The pixel electrode unit of claim 1, wherein W isR＞WG＞WBIn, WRIs 120% WG～125％WG，WBIs 75% WG～80％WG。
3. The pixel electrode unit of claim 1, wherein W isR＝12μm，WG＝10μm，WB＝8μm。
4. The pixel electrode unit of claim 1, wherein the first and second trunk pixel electrodes are perpendicular to each other and are formed with four liquid crystal alignment regions;
the third main pixel electrode and the fourth main pixel electrode are vertical to each other and four liquid crystal alignment regions are formed;
the fifth main pixel electrode and the sixth main pixel electrode are perpendicular to each other, and four liquid crystal alignment regions are formed.
5. The pixel electrode unit according to claim 1 or 4, wherein the first pixel electrode unit further comprises a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the first main pixel electrode and the second main pixel electrode;
the second pixel electrode unit further comprises a plurality of branch electrodes, and one end of each branch electrode is connected with at least one of the third main pixel electrode and the fourth main pixel electrode;
the third pixel electrode unit further includes a plurality of branch electrodes, and one end of each branch electrode is connected to at least one of the fifth main pixel electrode and the sixth main pixel electrode.
6. The pixel electrode unit of claim 5, wherein the width of the stem electrode of the first pixel electrode unit is WrThe width of the branch electrode of the second pixel electrode unit is WgThe electrode width of the branch electrode of the third pixel electrode unit is Wb，Wr＞Wg＞Wb。
7. The pixel electrode unit of claim 5, wherein the branch electrodes are arranged at an oblique angle with respect to the trunk electrodes connected thereto.
8. The pixel electrode unit of claim 1, wherein the width of the first pixel electrode unit at each position of the trunk electrode is equal, the width of the second pixel electrode unit at each position of the trunk electrode is equal, and the width of the third pixel electrode unit at each position of the trunk electrode is equal.
9. A display panel comprising a plurality of pixel electrode units according to any one of claims 1 to 8.
10. A display device characterized in that the display device comprises the display panel according to claim 9.
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