WO2022126751A1

WO2022126751A1 - Pixel structure and liquid crystal panel

Info

Publication number: WO2022126751A1
Application number: PCT/CN2020/140661
Authority: WO
Inventors: 刘毅
Original assignee: Tcl华星光电技术有限公司
Priority date: 2020-12-16
Filing date: 2020-12-29
Publication date: 2022-06-23
Also published as: CN112596310A; CN112596310B

Abstract

The present application provides a pixel structure and a liquid crystal panel. A pixel electrode comprises a main electrode, branch electrodes connected to the main electrode, and a sealing electrode surrounding the main electrode and the branch electrodes; at least one end of the main electrode and at least one end of each branch electrode are connected to the sealing electrode; notch electrodes are formed on the long edges of the sealing electrode, extend into the pixel structure and divide the pixel electrode into at least two pixel subareas. A length-width ratio of each pixel subarea is reduced by utilizing a notch.

Description

A pixel structure and liquid crystal panel

technical field

The present application relates to the field of display technology, and in particular, to a pixel structure and a liquid crystal panel.

Background technique

Usually the liquid crystal display panel is composed of a color filter substrate, a thin film transistor substrate, a liquid crystal sandwiched between the color filter substrate and the thin film transistor substrate, and a sealing sealant; its working principle is to control the liquid crystal layer by applying a driving voltage on two glass substrates The rotation of the liquid crystal molecules refracts the light from the backlight module to produce a picture. The high vertical alignment liquid crystal driving method has the characteristics of high contrast ratio, large aperture ratio and fast deflection speed of liquid crystal molecules. It is one of the key investment areas of TFT-LCD display panel manufacturers in the mainstream market.

HVA technology requires the liquid crystal molecules to be negative liquid crystals, which need to be aligned with an electric field and polymerization before being put into use. Whether the liquid crystal pixel is abnormally aligned depends on the shape of the pixel electrode area, which is easy to occur when the pixel distribution area has a large length-to-width ratio. The alignment is abnormal, which seriously damages the pixel penetration rate. As shown in FIG. 1 , there is a pixel structure 100 in the prior art. The pixel structure 100 is a pixel partition. The aspect ratio of the pixel partition is L1 divided by W1. Domain 104, pixel domain 105 and pixel domain 106, the main electrode 101 is distributed in the gap and periphery of pixel domain 103, pixel domain 104, pixel domain 105 and pixel domain 106, and branch electrodes are distributed in pixel domain 103, pixel domain 104, pixel domain 105 and the pixel domain 106, and are electrically connected to the main electrode 101. Figure 2 is a schematic diagram of the simulated pixel domain dark pattern distribution in the case where the aspect ratio of the pixel partition in Figure 1 is 2.5:1. The four dark lines form a cross shape, no obvious abnormal pattern appears, the liquid crystal is deflected normally, and the pixels The distribution diagram of the simulated pixel domain dark pattern in the case where the aspect ratio of the partition is 3:1 is similar to that in Figure 2. FIG. 3 is a simulation schematic diagram of the simulated pixel domain dark pattern distribution in the case where the aspect ratio of the pixel partition in FIG. 1 is 3.5:1. As shown in FIG. 3 , the dark pattern area 107 presents very obvious irregular distortions, which greatly Increased risk of misalignment and display misalignment.

To sum up, it is necessary to design a new pixel structure to solve the problems of abnormal liquid crystal alignment and abnormal display in the prior art. Under the conventional design, the color blocking area is in the shape of a long and narrow strip, and the aspect ratio of the pixel electrode area is larger than 3:1, which is prone to irregular liquid crystal dark lines. The original cross-shaped dark lines become irregular and twisted dark lines. It increases the risk of abnormal alignment of the liquid crystal, which seriously affects the use function of the liquid crystal panel and impairs the technical problem of pixel transmittance.

technical problem

The embodiments of the present application provide a pixel structure and a liquid crystal panel, which can solve the problem that when designing a pixel of a liquid crystal panel in the prior art, since the metal traces occupy the pixel space, the pixel electrode area is conventionally designed to be a long and narrow strip under the color blocking area. , and the aspect ratio of the pixel electrode area is larger than 3:1, which is prone to irregular liquid crystal dark lines. The original cross-shaped dark lines become irregular and twisted dark lines, which increases the risk of abnormal alignment of the liquid crystal, which seriously affects the liquid crystal. The use function of the panel, the technical problem of impairing the pixel transmittance.

technical solutions

In order to solve the above-mentioned problems, the technical solutions provided by this application are as follows:

An embodiment of the present application provides a pixel structure, including a pixel electrode, the pixel electrode includes a trunk electrode, a branch electrode connected to the trunk electrode, and a sealing electrode surrounding the trunk electrode and the branch electrode, the trunk electrode The sealing electrode is connected to at least one end of the branch electrode; wherein, a slit electrode is formed on the long side of the sealing electrode, the slit electrode extends into the pixel structure, and the pixel electrode is divided into at least two pixel division.

According to a preferred embodiment of the present application, the pixel structure includes a first pixel subregion and a second pixel subregion that are oppositely arranged, and a first gap and a second pixel subregion are provided between the first pixel subregion and the second pixel subregion. A gap, the gap electrode includes a first gap electrode and a second gap electrode, the first gap electrode fills the first gap, and the second gap electrode fills the second gap.

According to a preferred embodiment of the present application, the pixel structure further includes a third pixel subsection, a third gap and a fourth gap are provided between the third pixel subregion and the second pixel subregion, and the gap electrode includes a third gap electrode. Three gap electrodes and a fourth gap electrode, the third gap electrode fills the third gap, and the fourth gap electrode fills the fourth gap.

According to a preferred embodiment of the present application, the first notch and the third notch are located on the long side of one side of the pixel structure, and the second notch and the fourth notch are located on the other side of the pixel structure on the long side.

According to a preferred embodiment of the present application, the aspect ratio of the first pixel sub-region, the second pixel sub-region and the third pixel sub-region is less than 3.

According to a preferred embodiment of the present application, the trunk electrodes located in the gaps between the first pixel sub-area, the second pixel sub-area and the third pixel sub-area are linear, and the linear trunk electrodes are connected to the pixel structure. long sides are parallel.

According to a preferred embodiment of the present application, the main electrode is a continuous grid-like structure.

According to a preferred embodiment of the present application, the first pixel sub-area, the second pixel sub-area and the third pixel sub-area respectively add a horizontal trunk to the corresponding pixel sub-area along the long side of the pixel structure. electrodes, so that the trunk electrodes in each pixel sub-area are changed from a linear type to a cross-type, wherein each pixel sub-area is divided into 4 sub-pixel sub-areas by the cross-shaped main electrode.

According to a preferred embodiment of the present application, the area sizes of the first pixel sub-region, the second pixel sub-region and the third pixel sub-region are different, and a horizontal trunk electrode is added in the pixel sub-region with the largest area, so that the The trunk electrodes in the pixel subarea with the largest area are changed from a straight type to a cross type, and the main trunk electrodes in the remaining pixel subareas are of a straight type.

According to a preferred embodiment of the present application, the first notch, the second notch, the third notch, and the fourth notch are all rectangular, and the long side of the rectangle is greater than 14 mm and the short side is greater than 5 mm.

According to a preferred embodiment of the present application, the branch electrodes and the trunk electrodes in the first pixel sub-area, the second pixel sub-area, and the third pixel sub-area are all formed in a Mion type.

Based on the above pixel structure, the present application provides a liquid crystal panel, the liquid crystal panel includes a pixel structure, the pixel structure includes a pixel electrode, the pixel electrode includes a trunk electrode, a branch electrode connected to the trunk electrode, and a A trunk electrode and a sealing electrode of the branch electrode, the trunk electrode and at least one end of the branch electrode are connected to the sealing electrode; wherein, a slit electrode is formed on the long side of the sealing electrode, and the slit electrode extends to the in the pixel structure, and dividing the pixel electrode into at least two pixel sub-areas;

Wherein, the pixel structure includes a first pixel sub-region and a second pixel sub-region arranged oppositely, a first gap and a second gap are arranged between the first pixel sub-region and the second pixel sub-region, and the gap electrode It includes a first gap electrode and a second gap electrode, the first gap electrode fills the first gap, and the second gap electrode fills the second gap.

According to a preferred embodiment of the present application, the pixel structure further includes a third pixel subsection, a third gap and a fourth gap are provided between the third pixel subregion and the second pixel subregion, and the gap electrode further includes A third gap electrode and a fourth gap electrode, the third gap electrode fills the third gap, and the fourth gap electrode fills the fourth gap.

beneficial effect

The present application provides a pixel structure and a liquid crystal panel. The pixel structure includes a pixel electrode. The pixel electrode includes a trunk electrode, a branch electrode connected to the trunk electrode, and a sealing electrode surrounding the trunk electrode and the branch electrode. The trunk electrode is connected to at least one end of the branch electrode. A sealing electrode; wherein, a slit electrode is formed on the long side of the sealing electrode, the slit electrode extends into the pixel structure, and the pixel electrode is divided into at least two pixel partitions, so that the original one pixel partition becomes a plurality of pixel partitions, The gap is used to reduce the aspect ratio of the pixel subregion, and the horizontal trunk electrode is added in the divided pixel subregion, and the subdivided pixel subregion is further divided into multiple pixel domains, which shortens the length of the branch electrodes and optimizes the alignment of the pixel electrodes. The electric field can improve the compensation ability of the liquid crystal driving signal, so that the abnormal dark pattern of the entire pixel structure is avoided, and the display quality of the pixel structure is improved.

Description of drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only for application In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic structural diagram of the distribution of pixel electrodes in a pixel structure in the prior art.

FIG. 2 is a schematic diagram of a simulation of a liquid crystal dark fringe distribution in a pixel structure with an aspect ratio of 2.5:1 or 3:1 in the prior art.

FIG. 3 is a schematic diagram illustrating a simulation of the distribution of dark streaks in liquid crystal with an aspect ratio of 3.5:1 in a pixel partition in a pixel structure in the prior art.

FIG. 4 is a first structural schematic diagram of pixel electrode distribution in a pixel structure according to an embodiment of the present application.

FIG. 5 is a second structural schematic diagram of pixel electrode distribution in a pixel structure according to an embodiment of the present application.

FIG. 6 is a third structural schematic diagram of pixel electrode distribution in a pixel structure according to an embodiment of the present application.

FIG. 7 is a fourth structural schematic diagram of pixel electrode distribution in a pixel structure according to an embodiment of the present application.

FIG. 8 is a fifth structural schematic diagram of pixel electrode distribution in a pixel structure according to an embodiment of the present application.

FIG. 9 is a schematic diagram of a third pixel partition structure in the fifth structure of the pixel electrode distribution of the pixel structure in FIG. 8 .

FIG. 10 is an enlarged view of part A in FIG. 8 .

FIG. 11 is an enlarged view of B in FIG. 8 .

FIG. 12 is a schematic diagram of simulation of liquid crystal dark fringe distribution corresponding to a fifth structure of pixel electrode distribution in a pixel structure according to an embodiment of the present application.

FIG. 13 is a schematic diagram of a film layer structure of a liquid crystal panel provided by an embodiment of the present application.

Embodiments of the present invention

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

In this application, when designing a pixel of a liquid crystal panel in the prior art, since the metal traces occupy the pixel space, the pixel electrode area is conventionally designed to be a long and narrow strip under the color blocking area, and the aspect ratio of the pixel electrode area is larger than 3:1. , It is easy to produce irregular dark lines of liquid crystal, and the original rectangular edge-sealed and beige shape becomes an irregular and twisted beige shape, which increases the risk of abnormal alignment of the liquid crystal, which seriously affects the use function of the LCD panel and damages the pixel transmittance. the technical problem, this application can solve the defect.

Through many simulation experiments, it is found that when the aspect ratio of the ITO distribution area of the pixel electrode is greater than 3, the liquid crystal alignment in the pixel partition will produce irregular liquid crystal dark lines, which will affect the display quality of the liquid crystal panel. , found that adding a gap in the pixel structure and re-dividing the original pixel sub-region into multiple pixel sub-regions can effectively improve the liquid crystal dark pattern and improve the display quality of the liquid crystal panel.

The present application provides a pixel structure, the pixel structure includes a pixel electrode, the pixel electrode includes a trunk electrode, a branch electrode connected to the trunk electrode, and a sealing electrode surrounding the trunk electrode and the branch electrode, and at least one end of the trunk electrode and the branch electrode is connected to the sealing electrode; Wherein, a slit electrode is formed on the long side of the sealing electrode, the slit electrode extends into the pixel structure, and the pixel electrode is divided into at least two pixel divisions, the aspect ratio of the divided pixel division is reduced, and the length and width of the divided pixel division are When the ratio is less than 3, the gap electrode fills the missing pixel electrode and provides deflection voltage for the liquid crystal at the gap position, so that the abnormal dark pattern of the entire pixel is avoided and the display quality of the pixel is improved.

As shown in FIG. 4 , an embodiment of the present application provides a first structural schematic diagram of the distribution of pixel electrodes in a pixel structure 200 . The pixel structure 200 includes a pixel electrode, and the pixel electrode includes a trunk electrode 201 and branch electrodes 202 connected to the trunk electrode 201 . , and the sealing electrode 203 surrounding the trunk electrode 201 and the branch electrode 202. The trunk electrode 201, the branch electrode 202 and the sealing electrode 203 are all transparent ITO films, and the width of the transparent ITO film of the trunk electrode 201 is greater than 5 um. At least one end of the trunk electrode 201 and the branch electrode 202 is connected with a sealing electrode 203; wherein, the long sides of the sealing electrode 203 are respectively formed with a first gap electrode 2031 and a second gap electrode 2032, the first gap electrode 2031 and the first gap electrode 2031 The slit electrodes 2032 are preferably strips, and the width of the strips is preferably greater than or equal to 6um. The first slit electrodes 2031 and the second slit electrodes 2032 divide the pixel electrodes into oppositely arranged first pixel partitions and second pixels. Partition, a first gap (represented by A in FIG. 4 ) and a second gap are provided between the first pixel partition and the second pixel partition, and the first gap and the second gap have the same shape, and are also preferably rectangular. The long side is greater than 14um, and the short side is greater than 5um. The first gap electrode 2031 fills the first gap, and the second gap electrode 2032 fills the second gap. The shape of the divided pixel subregion is different from the shape of the original pixel subregion. Setting the size of the gap reasonably can ensure that the divided pixel subregion has a The aspect ratio is lower than 3, so that the dark pattern of the entire pixel is avoided and the display quality of the pixel is improved.

Specifically, the first pixel subsection includes a first pixel domain 204 and a second pixel domain 205 arranged side by side, the second pixel subsection includes a third pixel domain 206 and a fourth pixel domain 207 arranged side by side, and the first pixel domain 204 and the first pixel domain 204 are arranged side by side. A first gap is provided between the three pixel domains 206, a second gap is provided between the second pixel domain 205 and the fourth pixel domain 207, an array of branch electrodes 202 is provided in each pixel domain, and a trunk electrode 201 is provided around the pixel domain , the trunk electrode 201 is a continuous grid structure, preferably integrally formed, and the trunk electrode 201 located in the pixel domain gap is linear. Due to the existence of the gap, the shape of the divided pixel partition is changed. Since the shape of the divided pixel partition is different from the original pixel partition, the long side of the divided pixel partition may not be in the same direction as the original pixel partition. The gap can realize that the aspect ratio of the pixel partition after segmentation is less than the value of L2 divided by W2, and the aspect ratio of the pixel partition after segmentation is preferably less than 3, so that the abnormal dark pattern of the entire pixel domain is avoided and the display quality of the pixel is improved. .

In order to further reduce the aspect ratio of the divided pixel subregions, as shown in FIG. 5 , an embodiment of the present application provides a second structural schematic diagram of the distribution of pixel electrodes in the pixel structure 200. The pixel structure 200 further includes a third pixel subregion, the first A third gap and a fourth gap are arranged between the three-pixel partition and the second pixel partition. The gap electrode further includes a third gap electrode 2033 and a fourth gap electrode 2034. The third gap electrode 2033 fills the third gap, and the fourth gap electrode 2034 to fill the fourth gap. Specifically, the third pixel partition includes a fifth pixel domain 208 and a sixth pixel domain 209 arranged side by side, a third gap is arranged between the third pixel domain 206 and the fifth pixel domain 208, and the fourth pixel domain 207 and the sixth pixel domain 207 A fourth gap is arranged between the pixel domains 209. Compared with FIG. 4, the third gap and the fourth gap further change the shape of the pixel partition after segmentation. By rationally setting these gaps, the length and width of the pixel partition after the segmentation can be realized. The ratio is less than the value of dividing L2 by W2, and the aspect ratio of the divided pixel partition is preferably less than 3, so that the abnormal dark pattern of the entire pixel domain is avoided and the display quality of the pixel is improved. In this embodiment, the branch electrodes and the trunk electrodes in the first pixel sub-area, the second pixel sub-area, and the third pixel sub-area are all preferably formed in the Mion type.

Through simulation experiments, the inventors found that increasing the horizontal trunk electrodes in the pixel partition can further reduce the influence of dark streaks. As shown in FIG. 6 , an embodiment of the present application provides a third structural schematic diagram of the pixel electrode distribution in the pixel structure 200 . The third structure of the pixel electrode distribution is to add a horizontal line in each pixel partition in the first structure. Trunk electrode, the horizontal trunk electrode runs through the pixel partition, and the new horizontal trunk electrode forms a cross shape with the vertical trunk electrode in the original pixel partition, that is, a horizontal trunk is added on the long side of the vertical pixel structure to the corresponding pixel partition. electrode, so that the trunk electrode in each pixel partition is changed from a linear type to a cross type, and the cross-shaped trunk electrode divides each pixel partition into 4 sub-pixel partitions. The sub-pixel partition in this embodiment is equivalent to the sub-pixel domain. . Specifically, the first pixel sub-region and the second pixel sub-region are divided into a square shape, the first pixel domain 204 includes a first sub-pixel domain 2041 and a second sub-pixel domain 2042, and the second pixel domain 205 includes a third sub-pixel domain 2051 and the fourth sub-pixel domain 2052, the third pixel domain 206 includes the fifth sub-pixel domain 2061 and the sixth sub-pixel domain 2062, the fourth pixel domain 207 includes the seventh sub-pixel domain 2071 and the eighth sub-pixel domain 2072, FIG. 6 Compared with Figure 4, the aspect ratio of the pixel sub-region does not change after segmentation, but the number of trunk electrodes in the sub-pixel sub-region increases, the length also increases, the number of branch electrodes in the sub-pixel domain increases, and the length is shortened and decreased. The impedance of the entire pixel electrode is reduced. When the scanning signal of the same voltage passes through a pixel circuit, after the switch TFT in the pixel circuit is turned on, the data signal will be applied to the pixel electrode faster, and the voltage of the data signal will be less attenuated. The influence of driving signals applied to a pixel structure is small, and the compensation capability of the liquid crystal driving signal is improved. Therefore, the entire pixel structure is displayed uniformly, so that the abnormal dark pattern of the pixel domain is avoided, and the display quality of the pixel is improved.

As shown in FIG. 7 , an embodiment of the present application provides a fourth structural schematic diagram of pixel electrode distribution in a pixel structure 200 . The fourth structure of pixel electrode distribution is to add a horizontal trunk electrode to each pixel partition in the second structure. , so that the trunk electrodes in each pixel partition are changed from a straight line to a cross shape, wherein the cross-shaped trunk electrode divides each pixel partition into 4 sub-pixel partitions, and the sub-pixel partition in this embodiment is also equivalent to the sub-pixel partition. pixel domain. The first pixel sub-region, the second pixel sub-region and the third pixel sub-region are divided into a square shape, the first pixel domain 204 includes the first sub-pixel domain 2041 and the second sub-pixel domain 2042, and the second pixel domain 205 includes the third sub-pixel domain The domain 2051 and the fourth sub-pixel domain 2052, the third pixel domain 206 includes the fifth sub-pixel domain 2061 and the sixth sub-pixel domain 2062, the fourth pixel domain 207 includes the seventh sub-pixel domain 2071 and the eighth sub-pixel domain 2072, The fifth pixel domain 208 includes a ninth subpixel domain 2081 and a tenth subpixel domain 2082, and the sixth pixel domain 209 includes an eleventh subpixel domain 2091 and a twelfth subpixel domain 2092. Comparing FIG. 7 with FIG. 5, After the division, the aspect ratio of the pixel partition does not change, but after the division, the number of trunk electrodes in the pixel partition increases, and the length also increases, the number of branch electrodes in the sub-pixel domain increases, and the length becomes shorter, which reduces the impedance of the entire pixel electrode. , when the scanning signal of the same voltage passes through a pixel circuit, after the switch TFT in the pixel circuit is turned on, the data signal will be applied to the pixel electrode faster, and the voltage attenuation of the data signal will be smaller, and the driving signal will be applied to the next pixel structure. Therefore, the entire pixel structure is displayed uniformly, so that the abnormal dark pattern of the pixel domain is avoided, and the display quality of the pixel is improved.

As shown in FIG. 8 , an embodiment of the present application provides a fifth structural schematic diagram of the distribution of pixel electrodes in a pixel structure 200. The pixel structure 200 includes a first pixel partition, a second pixel partition, and a third pixel partition. The areas of the first pixel partition, the second pixel partition and the third pixel partition are different, the second pixel partition has the largest area, and a horizontal trunk electrode is added in the second pixel partition, so that the trunk electrode in the second pixel partition is composed of The linear type becomes a cross type, and the trunk electrodes in the first pixel sub-area and the third pixel sub-area are in a linear type. The third pixel domain 206 and the fourth pixel domain 207 are arranged, the second pixel subregion further includes the pixel domain 2063 and the pixel domain 2073 arranged side by side, and the third pixel subregion includes the fifth pixel domain 208 and the sixth pixel domain 209 arranged side by side , the aspect ratio of the original pixel structure is the value of L2 divided by W2, as shown in Figure 9, taking the third pixel partition as an example, the aspect ratio of the third pixel partition is L21 divided by the value of W21, L21 divided by The value of W21 is different from the value of L2 divided by W2. By setting the gap reasonably, the value of L21 divided by W21 can be far less than the value of L2 divided by W2, and the aspect ratio of the pixel partition after segmentation is less than 3, so that the entire pixel domain The abnormal dark pattern is avoided, and the display quality of the pixel is improved.

In addition, the present application also provides partially enlarged figures 10 and 11 of the trunk electrode of the fourth notch and the pixel domain gap, the fourth notch and the fourth notch electrode 2034 are both rectangular, the long side of the fourth notch is L11, and the short side is W11 and L11 are larger than 14um, and W11 is larger than 6um. The width of the main electrode 201 located in the pixel domain gap is W12, and W12 is larger than 6um.

As shown in FIG. 12 , an embodiment of the present application provides a simulation schematic diagram of a pixel dark pattern corresponding to the fifth structure of the pixel electrode distribution in the pixel structure 200 . There is no irregular dark pattern between each sub-pixel domain, and the shape of the dark pattern is both There are multiple groups of cross-shaped dark lines, and the pixel display is normal, which proves that the use of gaps to divide the pixel partition can avoid the problem of abnormal display.

According to the above pixel structure, as shown in FIG. 13 , the present application further provides a liquid crystal panel 300 . The liquid crystal panel 300 includes the pixel structure in the above-mentioned embodiment, and the liquid crystal panel 300 further includes an array substrate, and color arrays arranged in alignment with the array substrate. The film substrate and the liquid crystal layer 302 located between the array substrate and the color filter substrate, the pixel electrodes 3019 are located on the surface of the array substrate, and a common electrode 3035 is provided on the side of the color filter substrate close to the liquid crystal layer 302 .

Specifically, the array substrate includes a base substrate 3011, a first metal layer 3012 and a first metal layer 3013 are provided on the surface of the base substrate 3011, a first insulating layer 3014 is provided on the surface of the base substrate 3011, the first insulating layer 3014 covers the first metal layer 3012 and the first metal layer 3013, a polysilicon layer 3015 is arranged on the surface of the first insulating layer 3014, and a second metal layer 3016 and a second metal layer 3017 are arranged on the surface of the polysilicon layer 3015. A second insulating layer 3018 covering the polysilicon layer 3015 is provided on the surface of the layer 3014, and a pixel electrode 3019 is prepared on the second insulating layer 3018. The color filter substrate includes a base substrate 3031, and a color resist layer 3032, a color resist layer 3033 and a black matrix 3034 located on the color resist layer 3032 and the color resist layer 3033 are arranged on the surface of the base substrate 3031, and on the color resist layer 3032 and the color resist layer 3033 A common electrode 3035 is prepared on the surface, wherein the color resist layer 3032 and the color resist layer 3033 are preferably one color resist among red color resist, blue color resist or green color resist.

The present application provides a pixel structure and a liquid crystal panel. The pixel structure includes a pixel electrode. The pixel electrode includes a trunk electrode, a branch electrode connected to the trunk electrode, and a sealing electrode surrounding the trunk electrode and the branch electrode. The trunk electrode is connected to at least one end of the branch electrode. A sealing electrode; wherein, a slit electrode is formed on the long side of the sealing electrode, the slit electrode extends into the pixel structure, and the pixel electrode is divided into at least two pixel partitions, so that the original one pixel partition becomes a plurality of pixel partitions, The gap is used to reduce the aspect ratio of the pixel subregion, and the horizontal trunk electrode is added in the divided pixel subregion, and the subdivided pixel subregion is further divided into multiple pixel domains, which shortens the length of the branch electrodes and reduces the impedance of the pixel electrode. The compensation capability of the liquid crystal driving signal is improved, so that the abnormal dark pattern of the entire pixel structure is avoided, and the display quality of the pixel structure is improved.

To sum up, although the present application has disclosed the above-mentioned preferred embodiments, the above-mentioned preferred embodiments are not intended to limit the present application. Those of ordinary skill in the art can make various modifications without departing from the spirit and scope of the present application. Therefore, the scope of protection of this application is subject to the scope defined by the claims.

Claims

A pixel structure, comprising a pixel electrode, the pixel electrode comprising a trunk electrode, a branch electrode connected to the trunk electrode, and a sealing electrode surrounding the trunk electrode and the branch electrode, the trunk electrode and the branch electrode At least one end of the electrode is connected to the sealing electrode; wherein, a slit electrode is formed on the long side of the sealing electrode, and the slit electrode extends into the pixel structure and divides the pixel electrode into at least two pixel partitions.
The pixel structure according to claim 1, wherein the pixel structure comprises a first pixel sub-region and a second pixel sub-region that are oppositely arranged, and a first pixel sub-region and the second pixel sub-region are arranged between the first pixel sub-region and the second pixel sub-region. A gap and a second gap, the gap electrode includes a first gap electrode and a second gap electrode, the first gap electrode fills the first gap, and the second gap electrode fills the second gap.
The pixel structure according to claim 2, wherein the pixel structure further comprises a third pixel sub-region, a third gap and a fourth gap are provided between the third pixel sub-region and the second pixel sub-region, the The gap electrode further includes a third gap electrode and a fourth gap electrode, the third gap electrode fills the third gap, and the fourth gap electrode fills the fourth gap.
The pixel structure of claim 3, wherein the first notch and the third notch are located on a long side of one side of the pixel structure, and the second notch and the fourth notch are located on the pixel on the long edge on the other side of the structure.
The pixel structure of claim 3 , wherein an aspect ratio of the first pixel sub-region, the second pixel sub-region and the third pixel sub-region is less than 3.
The pixel structure according to claim 3, wherein the trunk electrodes located in the gaps of the first pixel sub-area, the second pixel sub-area and the third pixel sub-area are linear, and the linear trunk electrodes are connected to The long sides of the pixel structures are parallel.
The pixel structure according to claim 3, wherein the main electrode is a continuous grid-like structure.
The pixel structure according to claim 3, wherein the first pixel sub-region, the second pixel sub-region and the third pixel sub-region are respectively formed in the corresponding pixel sub-regions along a long side of the pixel structure. A horizontal trunk electrode is added, so that the trunk electrode in each pixel sub-area is changed from a linear type to a cross-type, wherein the cross-shaped main electrode divides each pixel sub-area into 4 sub-pixel sub-areas.
The pixel structure according to claim 3, wherein the area size of the first pixel partition, the second pixel partition and the third pixel partition are different, and a horizontal trunk is added in the pixel partition with the largest area electrodes, so that the trunk electrodes in the pixel subarea with the largest area are changed from a straight type to a cross type, and the main trunk electrodes in the remaining pixel subareas are straight.
The pixel structure according to claim 3, wherein the first notch, the second notch, the third notch and the fourth notch are all rectangular, the long side of the rectangle is greater than 14 mm, and the short side is greater than 14 mm. 5mm.
The pixel structure according to claim 3 , wherein the branch electrodes and the trunk electrodes in the first pixel sub-region, the second pixel sub-region and the third pixel sub-region are all formed in a Mion type.
A liquid crystal panel includes a pixel structure, the pixel structure includes a pixel electrode, the pixel electrode includes a trunk electrode, a branch electrode connected to the trunk electrode, and a sealing electrode surrounding the trunk electrode and the branch electrode, At least one end of the trunk electrode and the branch electrode is connected to the sealing electrode; wherein, a gap electrode is formed on the long side of the sealing electrode, the gap electrode extends into the pixel structure, and connects the pixel electrode divided into at least two pixel partitions;

Wherein, the pixel structure includes a first pixel sub-region and a second pixel sub-region arranged oppositely, a first gap and a second gap are arranged between the first pixel sub-region and the second pixel sub-region, and the gap electrode It includes a first gap electrode and a second gap electrode, the first gap electrode fills the first gap, and the second gap electrode fills the second gap.
The liquid crystal panel according to claim 12, wherein the pixel structure further comprises a third pixel partition, a third gap and a fourth gap are provided between the third pixel partition and the second pixel partition, the The gap electrode further includes a third gap electrode and a fourth gap electrode, the third gap electrode fills the third gap, and the fourth gap electrode fills the fourth gap.
The liquid crystal panel of claim 13, wherein the first notch and the third notch are located on a long side of one side of the pixel structure, and the second notch and the fourth notch are located on the pixel on the long edge on the other side of the structure.
The liquid crystal panel of claim 13 , wherein an aspect ratio of the first pixel sub-region, the second pixel sub-region and the third pixel sub-region is less than 3.
14. The liquid crystal panel of claim 13, wherein the trunk electrodes located in the gaps between the first pixel sub-area, the second pixel sub-area and the third pixel sub-area are linear, and the linear trunk electrodes are connected to The long sides of the pixel structures are parallel.
14. The liquid crystal panel of claim 13, wherein the main electrode is a continuous grid structure.
The liquid crystal panel according to claim 13, wherein the first pixel sub-region, the second pixel sub-region and the third pixel sub-region are respectively formed in the corresponding pixel sub-regions along a long side of the pixel structure. A horizontal trunk electrode is added, so that the trunk electrode in each pixel sub-area is changed from a linear type to a cross-type, wherein the cross-shaped main electrode divides each pixel sub-area into 4 sub-pixel sub-areas.
The liquid crystal panel according to claim 13, wherein the first pixel sub-region, the second pixel sub-region and the third pixel sub-region have different area sizes, and a horizontal trunk is added in the pixel sub-region with the largest area electrodes, so that the trunk electrodes in the pixel subarea with the largest area are changed from a straight type to a cross type, and the main trunk electrodes in the remaining pixel subareas are straight.
The liquid crystal panel according to claim 13, wherein the first notch, the second notch, the third notch and the fourth notch are all rectangular, the long side of the rectangle is greater than 14 mm, and the short side is greater than 14 mm. 5mm.