CN111538189A - Pixel electrode and liquid crystal display panel - Google Patents
Pixel electrode and liquid crystal display panel Download PDFInfo
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- CN111538189A CN111538189A CN202010449255.1A CN202010449255A CN111538189A CN 111538189 A CN111538189 A CN 111538189A CN 202010449255 A CN202010449255 A CN 202010449255A CN 111538189 A CN111538189 A CN 111538189A
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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
- G02F1/1337—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
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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
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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
Abstract
The invention provides a pixel electrode and a liquid crystal display panel. The pixel electrode comprises a main electrode, a branch electrode and an edge electrode; the main electrode is divided into a transverse electrode and a longitudinal electrode perpendicular to the transverse electrode; the transverse electrodes and the longitudinal electrodes divide the area corresponding to the pixel electrode into four liquid crystal alignment areas, and the branch electrodes are positioned in the liquid crystal alignment areas; the transverse electrodes and the longitudinal electrodes are straight strips and have no bent structures, and the connecting positions of the branch electrodes and the main electrode in at least two liquid crystal alignment areas are staggered with each other. The branch electrodes are arranged in a staggered mode, an asymmetric electric field is formed on the two sides of the main electrode, liquid crystal molecules near the main electrode are favorably distributed along the azimuth angles of the branch electrodes, dark stripes are improved, the penetration rate is increased, the image quality is improved, and the power consumption is reduced.
Description
Technical Field
The invention relates to the technical field of display, in particular to a pixel electrode and a liquid crystal display panel.
Background
In order to obtain better wide viewing angle characteristics and improve the color shift problem of the VA-type liquid crystal display panel, a multi-domain VA (MVA) technique is generally adopted, in which a sub-pixel is divided into a plurality of regions, and the liquid crystal in each region is tilted in different directions after a voltage is applied, so that the viewing effects in the respective directions tend to be even and uniform.
In the liquid crystal display panel in the prior art, the branch electrodes in each domain of the pixel electrode are all arranged to be symmetrically distributed about the main electrode, that is, the electric fields at two sides of the main electrode are symmetrically distributed, and the structure of the pixel electrode can cause that liquid crystal molecules near the main electrode cannot normally deflect, and dark fringes can be generated, so that the penetration rate of the liquid crystal display panel is low, the picture quality of the liquid crystal display panel is influenced, and the power consumption is increased. Therefore, it is necessary to improve this defect.
Disclosure of Invention
Embodiments of the present invention provide a pixel electrode, which is used to solve the technical problems of a pixel electrode in the prior art that branch electrodes in each domain are symmetrically distributed about a main electrode, so that electric fields at two sides of the main electrode are symmetrically distributed, liquid crystal molecules near the main electrode cannot be normally deflected, dark fringes are generated, the transmittance is reduced, the image quality is affected, and the power consumption is increased.
The embodiment of the invention provides a pixel electrode, which comprises a main electrode, branch electrodes and edge electrodes; the main electrode is divided into a transverse electrode and a longitudinal electrode perpendicular to the transverse electrode, and two ends of the transverse electrode and two ends of the longitudinal electrode are connected with the edge electrodes; one end of the branch electrode is connected with the trunk electrode, and the other end of the branch electrode is connected with the edge electrode; the transverse electrodes and the longitudinal electrodes divide the area corresponding to the pixel electrode into four liquid crystal alignment areas, and the branch electrodes are positioned in the liquid crystal alignment areas; the transverse electrodes and the longitudinal electrodes are straight strips and have no bent structures, and the connecting positions of the branch electrodes and the main electrode in at least two liquid crystal alignment areas are staggered with each other.
Furthermore, the four liquid crystal alignment regions include a first liquid crystal alignment region, a second liquid crystal alignment region, a third liquid crystal alignment region, and a fourth liquid crystal alignment region, a branch electrode in the first liquid crystal alignment region is parallel to a branch electrode in the third liquid crystal alignment region, and a branch electrode in the second liquid crystal alignment region is parallel to a branch electrode in the fourth liquid crystal alignment region.
Further, the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode; slits between the branch electrodes in the first liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the lateral electrode, and slits between the branch electrodes in the second liquid crystal alignment region and the third liquid crystal alignment region are symmetrical with respect to the lateral electrode.
Further, the branch electrodes in the first liquid crystal alignment region and the branch electrodes in the fourth liquid crystal alignment region are symmetrical with respect to the lateral electrodes, and the branch electrodes in the second liquid crystal alignment region and the branch electrodes in the third liquid crystal alignment region are symmetrical with respect to the lateral electrodes; slits between the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and slits between the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode.
Further, the slit between the branch electrode in the first liquid crystal alignment region and the branch electrode in the fourth liquid crystal alignment region is symmetrical with respect to the lateral electrode, and the slit between the branch electrode in the second liquid crystal alignment region and the branch electrode in the third liquid crystal alignment region is symmetrical with respect to the lateral electrode; slits between the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and slits between the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode.
The embodiment of the invention provides a liquid crystal display panel, which comprises a first substrate, a second substrate and a liquid crystal molecular layer, wherein the first substrate and the second substrate are arranged opposite to each other, and the liquid crystal molecular layer is arranged between the first substrate and the second substrate; a plurality of pixel electrodes are arranged on one side of the first substrate facing the second substrate, and a common electrode is arranged on one side of the second substrate facing the first substrate; each pixel electrode comprises a main electrode, a branch electrode and an edge electrode; the main electrode is divided into a transverse electrode and a longitudinal electrode perpendicular to the transverse electrode, and two ends of the transverse electrode and two ends of the longitudinal electrode are connected with the edge electrodes; one end of the branch electrode is connected with the trunk electrode, and the other end of the branch electrode is connected with the edge electrode; the transverse electrodes and the longitudinal electrodes divide the area corresponding to the pixel electrode into four liquid crystal alignment areas, and the branch electrodes are positioned in the liquid crystal alignment areas; the transverse electrodes and the longitudinal electrodes are straight strips and have no bent structures, and the connecting positions of the branch electrodes and the main electrode in at least two liquid crystal alignment areas are staggered with each other.
Furthermore, the four liquid crystal alignment regions include a first liquid crystal alignment region, a second liquid crystal alignment region, a third liquid crystal alignment region, and a fourth liquid crystal alignment region, a branch electrode in the first liquid crystal alignment region is parallel to a branch electrode in the third liquid crystal alignment region, and a branch electrode in the second liquid crystal alignment region is parallel to a branch electrode in the fourth liquid crystal alignment region.
Further, the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode; slits between the branch electrodes in the first liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the lateral electrode, and slits between the branch electrodes in the second liquid crystal alignment region and the third liquid crystal alignment region are symmetrical with respect to the lateral electrode.
Further, the branch electrodes in the first liquid crystal alignment region and the branch electrodes in the fourth liquid crystal alignment region are symmetrical with respect to the lateral electrodes, and the branch electrodes in the second liquid crystal alignment region and the branch electrodes in the third liquid crystal alignment region are symmetrical with respect to the lateral electrodes; slits between the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and slits between the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode.
Further, the slit between the branch electrode in the first liquid crystal alignment region and the branch electrode in the fourth liquid crystal alignment region is symmetrical with respect to the lateral electrode, and the slit between the branch electrode in the second liquid crystal alignment region and the branch electrode in the third liquid crystal alignment region is symmetrical with respect to the lateral electrode; slits between the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and slits between the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode.
Has the advantages that: according to the pixel electrode provided by the embodiment of the invention, the branch electrodes are arranged in a staggered manner, and asymmetric electric fields are formed on the two sides of the main electrode, so that liquid crystal molecules near the main electrode are favorably distributed along the azimuth angles of the branch electrodes, dark stripes are improved, the penetration rate is increased, the picture quality is improved, and the power consumption is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of a basic structure of a pixel electrode according to an embodiment of the present invention.
Fig. 2 is a schematic diagram of a basic structure of a pixel electrode according to a second embodiment of the present invention.
Fig. 3 is a schematic diagram of a basic structure of a pixel electrode according to a third embodiment of the present invention.
Fig. 4 is a schematic diagram of a basic structure of a pixel electrode according to a fourth embodiment of the present invention.
Fig. 5 is a schematic diagram of a basic structure of a pixel electrode according to a fifth embodiment of the present invention.
Fig. 6 is a schematic diagram of a basic structure of a liquid crystal display panel according to an embodiment of the present invention.
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.
As shown in fig. 1, a basic structure diagram of a pixel electrode according to a first embodiment of the present invention is provided, and components of the present invention and relative position relationships between the components can be visually seen from the diagram, where the pixel electrode includes a main electrode 101, a branch electrode 102, and an edge electrode 103; the main electrode 101 is divided into a transverse electrode 1011 and a longitudinal electrode 1012 perpendicular to the transverse electrode 1011, and both ends of the transverse electrode 1011 and the longitudinal electrode 1012 are connected to the edge electrode 103; one end of the branch electrode 102 is connected with the main electrode 101, and the other end is connected with the edge electrode 103; the transverse electrode 1011 and the longitudinal electrode 1012 divide the area corresponding to the pixel electrode into four liquid crystal alignment regions, and the branch electrodes are positioned in the liquid crystal alignment regions; the transverse electrodes 1011 and the longitudinal electrodes 1012 are straight strips and have no bending structure, and the connection positions of the branch electrodes and the main electrode 101 in at least two liquid crystal alignment regions are staggered.
It should be noted that, in the pixel electrode provided in the embodiment of the present invention, the main electrode 101 is straight and has no bending structure, so that liquid crystal molecules (not shown in the figure) in the area corresponding to the main electrode 101 can be stably displayed, and in order to improve dark fringes near the main electrode 101, in the embodiment, the connection between the branch electrodes 102 and the main electrode 101 is disposed in a staggered manner, so that asymmetric electric fields can be formed at two sides of the main electrode 101, so that the liquid crystal molecules near the main electrode 101 can better rotate according to the azimuth angles of the branch electrodes 102, thereby improving the transmittance, improving the picture quality, and reducing the power consumption.
The term "offset" means that the projections of the terminals of two adjacent branch electrodes on the main electrode 101 are partially overlapped or not overlapped.
In one embodiment, the four liquid crystal alignment regions include a first liquid crystal alignment region 105, a second liquid crystal alignment region 106, a third liquid crystal alignment region 107, and a fourth liquid crystal alignment region 108, the branched electrodes 102 in the first liquid crystal alignment region 105 are parallel to the branched electrodes in the third liquid crystal alignment region 107, and the branched electrodes in the second liquid crystal alignment region 106 are parallel to the branched electrodes in the fourth liquid crystal alignment region 108.
In one embodiment, the sum of the included angle of the branched electrodes 102 in the first liquid crystal alignment region 105 and the included angle of the branched electrodes in the second liquid crystal alignment region 106 is 180 degrees; the sum of the included angle between the branch electrodes in the third liquid crystal alignment region 107 and the included angle between the branch electrodes in the fourth liquid crystal alignment region 108 is 180 degrees.
It should be noted that, in this embodiment, the pixel electrodes are configured to be symmetrically distributed in the vertical direction, and the branch electrodes are distributed in a staggered manner in the horizontal direction, where the staggered distance is X, and the range of the staggered distance X is greater than 0 and smaller than the sum of the width of the branch electrodes and the width of the slits. If the width of the slit is equal to the width of the branch electrode, the range of the offset distance X is greater than 0 and less than twice the width of the slit.
As shown in fig. 1, taking the misalignment distance X equal to the width of the slit as an example, the branch electrodes 102 in the first liquid crystal alignment region 105 and the branch electrodes in the second liquid crystal alignment region 106 are symmetric with respect to the longitudinal electrode 1012, and the branch electrodes in the third liquid crystal alignment region 107 and the branch electrodes in the fourth liquid crystal alignment region 108 are symmetric with respect to the longitudinal electrode 1012; the slits between the branched electrodes 102 in the first liquid crystal alignment region 105 and the branched electrodes in the fourth liquid crystal alignment region 108 are symmetrical with respect to the lateral electrodes 1011, and the slits between the branched electrodes in the second liquid crystal alignment region 106 and the branched electrodes in the third liquid crystal alignment region 107 are symmetrical with respect to the lateral electrodes 1011.
As shown in fig. 2, a basic structure diagram of a pixel electrode according to a second embodiment of the present invention is provided, and in the second embodiment, the structure of the pixel electrode is configured to maintain symmetrical distribution in a horizontal direction, and branch electrodes in a vertical direction are distributed in a staggered manner, where a staggered distance is Y, and a range of the staggered distance Y is greater than 0 and smaller than a sum of a width of the branch electrodes and a width of the slit. If the width of the slit is equal to the width of the branch electrode, the range of the offset distance Y is greater than 0 and less than twice the width of the slit.
Taking the misalignment distance Y equal to the width of the slit as an example, the branched electrodes 102 in the first liquid crystal alignment region 105 and the branched electrodes in the fourth liquid crystal alignment region 108 are symmetric about the lateral electrode 1011, and the branched electrodes in the second liquid crystal alignment region 106 and the branched electrodes in the third liquid crystal alignment region 107 are symmetric about the lateral electrode 1011; the slits between the branch electrodes 102 in the first liquid crystal alignment region 105 and the branch electrodes in the second liquid crystal alignment region 106 are symmetrical with respect to the longitudinal electrode 1012, and the slits between the branch electrodes in the third liquid crystal alignment region 107 and the branch electrodes in the fourth liquid crystal alignment region 108 are symmetrical with respect to the longitudinal electrode 1012.
As shown in fig. 3, a basic structure diagram of a pixel electrode according to a third embodiment of the present invention is provided, in the third embodiment, the structure of the pixel electrode is configured to be in a staggered distribution of branch electrodes in a horizontal direction, a staggered distance is X, and a range of the staggered distance X is greater than 0 and smaller than a sum of a width of the branch electrode and a width of the slit; the branch electrodes in the vertical direction are distributed in a staggered mode, the staggered distance is Y, and the range of the staggered distance Y is larger than 0 and smaller than the sum of the width of the branch electrodes and the width of the slits. If the width of the slit is equal to the width of the branch electrode, the range of the offset distance X is greater than 0 and less than twice the width of the slit, and the range of the offset distance Y is greater than 0 and less than twice the width of the slit.
Taking the example that the misalignment distance X is equal to the width of a slit and the misalignment distance Y is equal to the width of a slit, the slit between the branch electrode 102 in the first liquid crystal alignment region 105 and the branch electrode in the fourth liquid crystal alignment region 108 is symmetrical about the lateral electrode 1011, and the slit between the branch electrode in the second liquid crystal alignment region 106 and the branch electrode in the third liquid crystal alignment region 107 is symmetrical about the lateral electrode 1011; the slits between the branch electrodes 102 in the first liquid crystal alignment region 105 and the branch electrodes in the second liquid crystal alignment region 106 are symmetrical with respect to the longitudinal electrode 1012, and the slits between the branch electrodes in the third liquid crystal alignment region 107 and the branch electrodes in the fourth liquid crystal alignment region 108 are symmetrical with respect to the longitudinal electrode 1012.
As shown in fig. 4, a basic structure of a pixel electrode according to a fourth embodiment of the present invention is schematically illustrated, in which at least two branch electrodes in a liquid crystal alignment region are set to have different widths, so as to form an asymmetric electric field, thereby improving dark fringes near a main electrode.
Specifically, the branch electrode 102 in the first liquid crystal alignment region 105 and the branch electrode in the fourth liquid crystal alignment region 108 are symmetrical with respect to the lateral electrode 1011, and the branch electrode 109 in the second liquid crystal alignment region 106 and the branch electrode in the third liquid crystal alignment region 107 are symmetrical with respect to the lateral electrode 1011; the width of the branch electrode 102 in the first liquid crystal alignment region 105 is larger than the width of the branch electrode 109 in the second liquid crystal alignment region 106. The projection of the end of the branch electrode 102 on the longitudinal electrode 1012 partially overlaps the projection of the end of the branch electrode 109 on the longitudinal electrode 1012, that is, the projection of the end of the branch electrode 102 on the longitudinal electrode 1012 is offset from the projection of the end of the branch electrode 109 on the longitudinal electrode 1012 by a distance Y, and the offset distance Y is greater than 0 and less than the sum of the width of the branch electrode 102 and the width of the slit 104.
In one embodiment, the sum of the widths of the branch electrodes and the widths of the slits in the different liquid crystal alignment regions is a constant value. Specifically, the sum of the width of the branch electrode 102 in the first liquid crystal alignment region 105 and the width of the slit 104 is equal to the sum of the width of the branch electrode 109 in the second liquid crystal alignment region 106 and the width of the slit 110.
As shown in fig. 5, in a basic structure diagram of a pixel electrode provided in a fifth embodiment of the present invention, the pixel electrodes are arranged to be symmetrically distributed in a vertical direction and staggered in a horizontal direction. Specifically, the branch electrode 102 in the first liquid crystal alignment region 105 and the branch electrode in the second liquid crystal alignment region 106 are symmetrical with respect to the longitudinal electrode 1012, and the branch electrode in the third liquid crystal alignment region 107 and the branch electrode in the fourth liquid crystal alignment region 108 are symmetrical with respect to the longitudinal electrode 1012; the width of the branch electrode 102 in the first liquid crystal alignment region 105 is larger than that of the branch electrode in the fourth liquid crystal alignment region 108. The projection of the end of the branch electrode 102 in the first liquid crystal alignment region 105 on the lateral electrode 1011 is misaligned with the projection of the end of the branch electrode in the fourth liquid crystal alignment region 108 on the lateral electrode 1011 by a misalignment distance X, wherein the misalignment distance X is greater than 0 and smaller than the sum of the width of the branch electrode 102 in the first liquid crystal alignment region 105 and the width of the slit 104.
In one embodiment, the pixel electrodes may be disposed in a horizontally staggered distribution and a vertically staggered distribution. Specifically, the branch electrode in the first liquid crystal alignment region and the branch electrode in the third liquid crystal alignment region are symmetrical with respect to the intersection of the lateral electrode and the longitudinal electrode, and the branch electrode in the second liquid crystal alignment region and the branch electrode in the fourth liquid crystal alignment region are symmetrical with respect to the intersection of the lateral electrode and the longitudinal electrode; the width of the branch electrode in the first liquid crystal alignment region is greater than that of the branch electrode in the second liquid crystal alignment region, and the specific dislocation distance is not described herein again.
As shown in fig. 6, a basic structure of a liquid crystal display panel according to an embodiment of the present invention includes a first substrate 201 and a second substrate 202 arranged opposite to each other, and a liquid crystal molecular layer 203 arranged between the first substrate 201 and the second substrate 202; a plurality of pixel electrodes (not shown) are disposed on a side of the first substrate 201 facing the second substrate 202, and a common electrode (not shown) is disposed on a side of the second substrate 202 facing the first substrate 201, wherein each pixel electrode is configured as described in the first embodiment, or the second embodiment, or the third embodiment
The fourth embodiment or the fifth embodiment will not be described herein.
In summary, in the pixel electrode provided in the embodiments of the present invention, the branch electrodes are disposed in a staggered manner, and asymmetric electric fields are formed at two sides of the main electrode, which is beneficial to the liquid crystal molecules near the main electrode being arranged along the azimuth angle of the branch electrodes, thereby improving dark fringes, increasing the transmittance, improving the picture quality, and reducing the power consumption.
The pixel electrode and the liquid crystal display panel provided by the embodiment of the invention are described in detail above. It should be understood that the exemplary embodiments described herein should be considered merely illustrative for facilitating understanding of the method of the present invention and its core ideas, and not restrictive.
Claims (10)
1. A pixel electrode is characterized by comprising a main electrode, branch electrodes and edge electrodes; the main electrode is divided into a transverse electrode and a longitudinal electrode perpendicular to the transverse electrode, and two ends of the transverse electrode and two ends of the longitudinal electrode are connected with the edge electrodes; one end of the branch electrode is connected with the trunk electrode, and the other end of the branch electrode is connected with the edge electrode;
the transverse electrodes and the longitudinal electrodes divide the area corresponding to the pixel electrode into four liquid crystal alignment areas, and the branch electrodes are positioned in the liquid crystal alignment areas;
the transverse electrodes and the longitudinal electrodes are straight strips and have no bent structures, and the connecting positions of the branch electrodes and the main electrode in at least two liquid crystal alignment areas are staggered with each other.
2. The pixel electrode of claim 1, wherein the four liquid crystal alignment regions comprise a first liquid crystal alignment region, a second liquid crystal alignment region, a third liquid crystal alignment region, and a fourth liquid crystal alignment region, wherein the branched electrodes in the first liquid crystal alignment region are parallel to the branched electrodes in the third liquid crystal alignment region, and wherein the branched electrodes in the second liquid crystal alignment region are parallel to the branched electrodes in the fourth liquid crystal alignment region.
3. The pixel electrode of claim 2, wherein the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetric about the longitudinal electrode, and the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetric about the longitudinal electrode; slits between the branch electrodes in the first liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the lateral electrode, and slits between the branch electrodes in the second liquid crystal alignment region and the third liquid crystal alignment region are symmetrical with respect to the lateral electrode.
4. The pixel electrode of claim 2, wherein the branch electrodes in the first liquid crystal alignment region and the fourth liquid crystal alignment region are symmetric about the lateral electrode, and the branch electrodes in the second liquid crystal alignment region and the third liquid crystal alignment region are symmetric about the lateral electrode; slits between the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and slits between the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode.
5. The pixel electrode of claim 2, wherein the slit between the branch electrode in the first liquid crystal alignment region and the branch electrode in the fourth liquid crystal alignment region is symmetric with respect to the lateral electrode, and the slit between the branch electrode in the second liquid crystal alignment region and the branch electrode in the third liquid crystal alignment region is symmetric with respect to the lateral electrode; slits between the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and slits between the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode.
6. The liquid crystal display panel is characterized by comprising a first substrate, a second substrate and a liquid crystal molecular layer, wherein the first substrate and the second substrate are arranged opposite to each other, and the liquid crystal molecular layer is arranged between the first substrate and the second substrate;
a plurality of pixel electrodes are arranged on one side of the first substrate facing the second substrate, and a common electrode is arranged on one side of the second substrate facing the first substrate;
each pixel electrode comprises a main electrode, a branch electrode and an edge electrode; the main electrode is divided into a transverse electrode and a longitudinal electrode perpendicular to the transverse electrode, and two ends of the transverse electrode and two ends of the longitudinal electrode are connected with the edge electrodes; one end of the branch electrode is connected with the trunk electrode, and the other end of the branch electrode is connected with the edge electrode;
the transverse electrodes and the longitudinal electrodes divide the area corresponding to the pixel electrode into four liquid crystal alignment areas, and the branch electrodes are positioned in the liquid crystal alignment areas;
the transverse electrodes and the longitudinal electrodes are straight strips and have no bent structures, and the connecting positions of the branch electrodes and the main electrode in at least two liquid crystal alignment areas are staggered with each other.
7. The liquid crystal display panel of claim 6, wherein the four liquid crystal alignment regions comprise a first liquid crystal alignment region, a second liquid crystal alignment region, a third liquid crystal alignment region, and a fourth liquid crystal alignment region, wherein the branched electrodes in the first liquid crystal alignment region are parallel to the branched electrodes in the third liquid crystal alignment region, and the branched electrodes in the second liquid crystal alignment region are parallel to the branched electrodes in the fourth liquid crystal alignment region.
8. The liquid crystal display panel of claim 7, wherein the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetric with respect to the longitudinal electrode, and the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetric with respect to the longitudinal electrode; slits between the branch electrodes in the first liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the lateral electrode, and slits between the branch electrodes in the second liquid crystal alignment region and the third liquid crystal alignment region are symmetrical with respect to the lateral electrode.
9. The liquid crystal display panel of claim 7, wherein the branch electrodes in the first liquid crystal alignment region and the fourth liquid crystal alignment region are symmetric with respect to the lateral electrode, and the branch electrodes in the second liquid crystal alignment region and the third liquid crystal alignment region are symmetric with respect to the lateral electrode; slits between the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and slits between the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode.
10. The liquid crystal display panel of claim 7, wherein the slit between the branch electrode in the first liquid crystal alignment region and the branch electrode in the fourth liquid crystal alignment region is symmetric with respect to the lateral electrode, and the slit between the branch electrode in the second liquid crystal alignment region and the branch electrode in the third liquid crystal alignment region is symmetric with respect to the lateral electrode; slits between the branch electrodes in the first liquid crystal alignment region and the second liquid crystal alignment region are symmetrical with respect to the longitudinal electrode, and slits between the branch electrodes in the third liquid crystal alignment region and the fourth liquid crystal alignment region are symmetrical with respect to the longitudinal electrode.
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| CN111538189B (en) | 2023-05-02 |
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