CN110824790A - Pixel electrode - Google Patents
Pixel electrode Download PDFInfo
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- CN110824790A CN110824790A CN201911008572.3A CN201911008572A CN110824790A CN 110824790 A CN110824790 A CN 110824790A CN 201911008572 A CN201911008572 A CN 201911008572A CN 110824790 A CN110824790 A CN 110824790A
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- 230000001154 acute effect Effects 0.000 claims description 4
- 238000007373 indentation Methods 0.000 claims 1
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 6
- 230000005684 electric field Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
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- Nonlinear Science (AREA)
- Geometry (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a pixel electrode, comprising: the edge electrode is arranged along the edge of the pixel and has a square outer frame structure, and the inner area of the edge electrode is divided into one or more domains; the branch electrodes are arranged in each domain, and at least one end of all the branch electrodes of at least two branch electrodes which are mutually parallel and distributed at intervals is electrically connected with the edge electrode; at least one edge of the edge electrode is provided with a plurality of notches, and the notches are periodically arranged along the long edge of the edge. The pixel electrode provided by the invention can effectively improve the liquid crystal efficiency at the edge, thereby improving the display brightness of the liquid crystal panel and optimizing the display effect.
Description
Technical Field
The invention relates to the technical field of display panels, in particular to a pixel electrode.
Background
Liquid crystal displays have become widely used display devices for various electronic devices such as mobile phones, personal digital assistants, digital cameras, computer screens, or notebook computer screens. The liquid crystal display comprises a backlight module and a liquid crystal display panel, wherein the liquid crystal display panel is composed of two substrates and a liquid crystal layer filled between the two substrates. The manufacturing process of the liquid crystal display panel is various, and a Vertical Alignment (VA) liquid crystal display panel is currently seen.
In the VA liquid crystal display panel, the unit pixel electrode has two structures of an opening and a seal. The pixel electrode with the opening structure is easy to have a dark line phenomenon between the electrodes because the electric field at the edge of the electrode has no relation and the electric field without the sealing structure has high intensity. The pixel electrode of the sealing structure comprises a rectangular outer frame, a cross keel and four groups of branch electrodes, but because the extending direction of the frame is different from the extending direction of the four groups of branch electrodes, dark stripes are easy to appear at the rectangular outer frame, the penetration rate of the pixel is affected, and the display brightness of the liquid crystal display panel is reduced.
Disclosure of Invention
Embodiments of the present invention provide a pixel electrode, which can improve the edge liquid crystal efficiency, thereby improving the transmittance.
To solve the above technical problem, the present invention provides a pixel electrode, including:
the edge electrode is arranged along the edge of the pixel and has a square outer frame structure, and the inner area of the edge electrode is divided into one or more domains;
the branch electrodes are arranged in each domain, and at least one end of all the branch electrodes of at least two branch electrodes which are mutually parallel and distributed at intervals is electrically connected with the edge electrode;
at least one edge of the edge electrode is provided with a plurality of notches, and the notches are periodically arranged along the long edge of the edge.
Further, the shape of the plurality of notches is at least one of circular arc, triangle, trapezoid, parallelogram and circular arc.
Further, when the plurality of notches are in a parallelogram shape, any one side edge of each of the plurality of notches is parallel to the direction of the connected branch electrode.
Furthermore, when the plurality of notches are trapezoidal, any one side edge of each notch is parallel to the direction of the connected branch electrode; when the plurality of gaps are triangular, any one side of each gap is parallel to the direction of the connected branch electrode.
Further, when the plurality of notches are arc-shaped, the tangential direction of each of the plurality of notches is parallel to the direction of the connected branch electrode.
Further, the notch is formed on one side of the side close to the pixel electrode.
Further, the notch is present on opposite sides of the edge.
Further, an acute included angle between any oblique edge or tangent line of each notch and the corresponding long edge is 45 degrees.
Further, the plurality of notches in the long side direction of the side have an intercept of less than 25 μm.
Further, the width of the side is a micrometers, the depth of the notch along the short side direction of the side is b micrometers, wherein a is more than 1 and less than 5, and b is less than or equal to (a-1).
Has the advantages that: the invention provides a pixel electrode which comprises an edge electrode, a main electrode and branch electrodes, wherein at least one edge of the edge electrode is designed to be provided with a plurality of notches, and the notches are periodically arranged along the long edges of the edge, so that the liquid crystal efficiency at the edge is improved, the display brightness of a liquid crystal panel is improved, and the display effect is optimized.
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 pixel electrode structure according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an edge electrode structure according to a first preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of another edge electrode structure provided in a second preferred embodiment of the present invention;
FIG. 4 is a schematic diagram of another edge electrode structure provided in a third preferred embodiment of the present invention;
FIG. 5 is a schematic diagram of another edge electrode structure provided in a fourth preferred embodiment of the present invention;
fig. 6 is a schematic diagram of another edge electrode structure according to a fifth preferred 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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
As a first preferred embodiment of the present invention, referring to fig. 1, a pixel electrode is provided, which includes a main electrode 1 with a cross-shaped structure, and divides a pixel into four electrode regions, namely a first electrode region 21, a second electrode region 22, a third electrode region 23, and a fourth electrode region 24;
the edge electrode 3 with a square outer frame structure is electrically connected with the tail end of the main electrode 1 to form four closed electrode areas;
at least two first branch electrodes 41 which are parallel to each other and distributed at intervals exist in the first electrode area 21, the included angle between the first branch electrodes and the horizontal direction is 45 degrees, at least two second branch electrodes 42 which are parallel to each other and distributed at intervals exist in the second electrode area 22, the included angle between the second branch electrodes and the horizontal direction is 135 degrees, at least two third branch electrodes 43 which are parallel to each other and distributed at intervals exist in the third electrode area 23, the included angle between the third branch electrodes and the horizontal direction is-135 degrees, at least two fourth branch electrodes 44 which are parallel to each other and distributed at intervals exist in the fourth electrode area 24, the included angle between the fourth branch electrodes and the horizontal direction is-135 degrees, one ends of all branch electrodes are electrically connected with the main electrode, and the other ends of the branch electrodes are electrically connected with the edge.
The edge electrode 3 has at least one edge in the structure shown in fig. 2, specifically, both sides of the edge electrode have a plurality of equilateral right-angled triangle notches which are arranged at equal intervals, the central axis of the branch electrode 4 is superposed with the central axis of the corresponding area of the edge electrode 3 connected with the branch electrode,
wherein, the intercept h between a plurality of gaps in the long side direction of the edge electrode 3 is less than or equal to 25 micrometers, the width a of the edge electrode 3 is less than or equal to 5 micrometers, the depth b of the gap along the short side direction of the edge electrode 3 is less than or equal to (a-1) micrometers,
preferably, the configuration in which there is at least one pair of opposite sides is the above-described structure,
more preferably, all of the four sides of the edge electrode 3 have the above-described structure.
In a second preferred embodiment of the present invention, a pixel electrode is provided, which has a structure substantially the same as that of the first preferred embodiment, the only difference is that the edge electrode 3 and the branch electrode 4 are connected in a different manner, and referring to fig. 3, one side of the branch electrode 4 is flush with one side of the edge electrode gap.
In a third preferred embodiment of the present invention, compared with the first preferred embodiment, another configuration of the edge electrode 3 is provided, and referring to fig. 4, the configuration of the edge electrode 3 having at least one side is the configuration shown in fig. 4, specifically, a plurality of right trapezoid notches are present near one side of the inner side of the pixel region, the plurality of right trapezoid notches are arranged at equal intervals, an acute angle included angle between any one side of the plurality of notches and the long side direction of the edge electrode is 45 °, the branch electrode 4 can be connected at any position of the pixel electrode 3, and preferably, the branch electrode 4 is connected at a non-notch of the pixel electrode 3.
Wherein, the intercept h between a plurality of gaps in the long side direction of the edge electrode 3 is less than or equal to 25 micrometers, the width a of the edge electrode 3 is less than or equal to 5 micrometers, the depth b of the gap along the short side direction of the edge electrode 3 is less than or equal to (a-1) micrometers,
preferably, the configuration in which there is at least one pair of opposite sides is the above-described structure,
more preferably, all of the four sides of the edge electrode 3 have the above-described structure.
In a fourth preferred embodiment of the present invention, compared with the first preferred embodiment, another configuration of the edge electrode 3 is provided, and referring to fig. 5, the configuration of the edge electrode 3 having at least one side is the configuration shown in fig. 5, specifically, a plurality of parallelogram notches are present near the inner side of the pixel region, the plurality of parallelogram notches are arranged at equal intervals, an acute included angle between any one side of the plurality of notches and the long side direction of the edge electrode is 45 °, the branch electrode 4 can be connected at any position of the pixel electrode 3, and preferably, the branch electrode 4 is connected at a non-notch of the pixel electrode 3.
Wherein, the intercept h between a plurality of gaps in the long side direction of the edge electrode 3 is less than or equal to 25 micrometers, the width a of the edge electrode 3 is less than or equal to 5 micrometers, the depth b of the gap along the short side direction of the edge electrode 3 is less than or equal to (a-1) micrometers,
preferably, the configuration in which there is at least one pair of opposite sides is the above-described structure,
more preferably, all of the four sides of the edge electrode 3 have the above-described structure.
In a fifth preferred embodiment of the present invention, compared with the first preferred embodiment, there is provided another configuration of the edge electrode 3, and referring to fig. 6, the configuration of the edge electrode 3 having at least one side is the configuration shown in fig. 6, specifically, a plurality of semicircular notches are formed on both sides of the pixel, the notches are arranged at equal intervals, the branch electrode 4 can be connected to any position of the pixel electrode 3, and preferably, the branch electrode 4 is connected to a non-notch of the pixel electrode 3.
Wherein the length h of the periodic repeating unit in the long side direction of the edge electrode 3 is less than or equal to 25 micrometers, the width a of the edge electrode 3 is less than or equal to 5 micrometers, the depth b of the gap in the short side direction of the edge electrode 3 is less than or equal to (a-1) micrometers,
preferably, the configuration in which there is at least one pair of opposite sides is the above-described structure,
more preferably, all of the four sides of the edge electrode 3 have the above-described structure.
The pixel electrode provided by the embodiment can improve the liquid crystal efficiency at the edge, further improve the display brightness of the liquid crystal panel and optimize the display effect.
In addition, in the embodiments provided above, the pixel electrodes are all distributed in four domains, but in practical applications, other distributed modes may be available, such as 1Domain/2Domain/8Domain or other Domain-dividing modes, which all belong to the scope of the present invention.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and parts that are not described in detail in a certain embodiment may refer to the above detailed descriptions of other embodiments, and are not described herein again.
In a specific implementation, each unit or structure may be implemented as an independent entity, or may be combined arbitrarily to be implemented as one or several entities, and the specific implementation of each unit or structure may refer to the foregoing method embodiment, which is not described herein again.
The liquid crystal electrode provided by the embodiment of the present invention is described in detail above, and the principle and the embodiment of the present invention are explained in detail herein by applying specific examples, and the description of the above embodiments is only used to help understanding the method and the core idea of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A pixel electrode, comprising:
the edge electrode is arranged along the edge of the pixel and has a square outer frame structure, and the inner area of the edge electrode is divided into one or more domains;
the branch electrodes are arranged in each domain, and at least one end of all the branch electrodes of at least two branch electrodes which are mutually parallel and distributed at intervals is electrically connected with the edge electrode;
at least one edge of the edge electrode is provided with a plurality of notches, and the notches are periodically arranged along the long edge of the edge.
2. The pixel electrode of claim 1, wherein the plurality of notches are shaped in at least one of a circular arc, a triangle, a trapezoid, a parallelogram, and a circular arc.
3. The pixel electrode according to claim 2, wherein when the plurality of gaps are parallelogram shaped, any side of each of the plurality of gaps is parallel to the direction of the connected branch electrode.
4. The pixel electrode according to claim 2, wherein when the plurality of gaps are trapezoidal, any one side of each of the plurality of gaps is parallel to the direction of the connected branch electrode; when the plurality of gaps are triangular, any one side of each gap is parallel to the direction of the connected branch electrode.
5. The pixel electrode according to claim 2, wherein when the plurality of notches are circular, a tangential direction of each of the plurality of notches is parallel to a direction of the connected branch electrode.
6. A pixel electrode according to claim 1 or 2, wherein the notch is present on a side of the edge adjacent to the pixel electrode.
7. A pixel electrode according to claim 1 or 2, wherein said indentations are present on opposite sides of said edge.
8. The pixel electrode of claim 2, wherein an acute angle between any oblique side or tangent of each of the plurality of notches and the corresponding long side is 45 degrees.
9. The pixel electrode according to claim 1, wherein the plurality of notches in the long side direction of the sides have an intercept of less than 25 μm with respect to each other.
10. A pixel electrode according to claim 1 or 9, wherein the width of the edge electrode is a micrometers, and the depth of the notch in the direction of the short side of the strip is b micrometers, wherein 1 < a < 5, and b ≦ a-1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911008572.3A CN110824790A (en) | 2019-10-22 | 2019-10-22 | Pixel electrode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911008572.3A CN110824790A (en) | 2019-10-22 | 2019-10-22 | Pixel electrode |
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| Publication Number | Publication Date |
|---|---|
| CN110824790A true CN110824790A (en) | 2020-02-21 |
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| CN201911008572.3A Pending CN110824790A (en) | 2019-10-22 | 2019-10-22 | Pixel electrode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114488630A (en) * | 2022-01-18 | 2022-05-13 | Tcl华星光电技术有限公司 | Pixel electrode, liquid crystal display panel and display device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976007A (en) * | 2010-09-14 | 2011-02-16 | 福建华映显示科技有限公司 | Pixel structure and pixel array |
| CN102176092A (en) * | 2010-12-27 | 2011-09-07 | 友达光电股份有限公司 | Pixel structure |
| WO2012099047A1 (en) * | 2011-01-20 | 2012-07-26 | シャープ株式会社 | Liquid crystal display device |
| CN106094368A (en) * | 2016-08-26 | 2016-11-09 | 深圳市华星光电技术有限公司 | Pixel electrode |
| CN109683406A (en) * | 2019-02-12 | 2019-04-26 | 深圳市华星光电半导体显示技术有限公司 | Pixel electrode |
-
2019
- 2019-10-22 CN CN201911008572.3A patent/CN110824790A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976007A (en) * | 2010-09-14 | 2011-02-16 | 福建华映显示科技有限公司 | Pixel structure and pixel array |
| CN102176092A (en) * | 2010-12-27 | 2011-09-07 | 友达光电股份有限公司 | Pixel structure |
| WO2012099047A1 (en) * | 2011-01-20 | 2012-07-26 | シャープ株式会社 | Liquid crystal display device |
| CN106094368A (en) * | 2016-08-26 | 2016-11-09 | 深圳市华星光电技术有限公司 | Pixel electrode |
| CN109683406A (en) * | 2019-02-12 | 2019-04-26 | 深圳市华星光电半导体显示技术有限公司 | Pixel electrode |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114488630A (en) * | 2022-01-18 | 2022-05-13 | Tcl华星光电技术有限公司 | Pixel electrode, liquid crystal display panel and display device |
| CN114488630B (en) * | 2022-01-18 | 2023-11-28 | Tcl华星光电技术有限公司 | Pixel electrode, liquid crystal display panel and display device |
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Address after: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant after: TCL China Star Optoelectronics Technology Co.,Ltd. Address before: 9-2 Tangming Avenue, Guangming New District, Shenzhen City, Guangdong Province Applicant before: Shenzhen China Star Optoelectronics Technology Co.,Ltd. |
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Application publication date: 20200221 |
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