CN105204247B - A kind of liquid crystal pixel cells and pixel unit dark line control method - Google Patents
A kind of liquid crystal pixel cells and pixel unit dark line control method Download PDFInfo
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- CN105204247B CN105204247B CN201510715853.8A CN201510715853A CN105204247B CN 105204247 B CN105204247 B CN 105204247B CN 201510715853 A CN201510715853 A CN 201510715853A CN 105204247 B CN105204247 B CN 105204247B
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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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- 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
- G02F2201/122—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode having a particular pattern
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Abstract
The invention discloses a kind of liquid crystal pixel cells and pixel unit dark line control methods.The pixel electrode of the pixel unit of the present invention uses side " T " shape structure, and the interference electrode for increasing the electric field at the pixel electrode " T " word crossover location is configured in the pixel unit, wherein：The interference electrode is using metal construction and mutual indepedent with the pixel electrode；The interference electrode is the side " T " shape structure for only including longitudinal branch and transverse branch；Longitudinal branch, transverse branch and " T " word crossover location of the interference electrode are located at immediately below longitudinal branch, transverse branch and " T " the word crossover location of the pixel electrode.Compared with prior art, pixel unit according to the present invention and method can effectively control dark line, to promote display taste and the consistency of product；And since the pixel cell structure of the present invention is simple, construction difficulty is low, thus the pixel unit of the present invention and method have lower popularization difficulty.
Description
Technical field
The present invention relates to technical field of liquid crystal display, a kind of liquid crystal pixel cells and pixel unit dark line are in particulard relate to
Control method.
Background technology
In liquid crystal display (Vertical the Alignment TFT-LCD, VA for using vertical orientation display technology
TFT-LCD in), the pixel electrode of HVA (High Vertical Alignment) type is generally configured to " rice " font structure (such as
Shown in Fig. 1).
The pixel electrode design of " rice " font structure is can be in right-angled intersection position (101 regions shown in Fig. 1 and near)
Generate dark line.Especially in curved-surface display, since upper and lower base plate caused by bending misplaces, the dark line of cross long side is caused to become
It is wide.The penetrance and display effect of pixel unit can be seriously affected in this way.
In view of the above-mentioned problems, pixel electrode criss-cross construction is become two opposite side " T " words in the prior art
Type structure (as shown in Figure 2), make dark line be moved to " T " word crossover location (pixel edge, 201,202 region as shown in Figure 2 and
Near), reduce influence of the dark line to curved-surface display.But since pixel electrode is changed to side " T " font knot by criss-cross construction
Structure causes the symmetry of the left and right field of pixel edge to be corrupted such that the dark line of pixel edge is easily deviated to pixel center, especially
It is that LCD alignment exception is more easily led to when processing procedure generates fluctuation.As shown in figure 3, the figure of left is pixel electrode structure signal
Figure, right are corresponding pixel display effect schematic diagram, and region 301,302 is corresponding with region 311,312 respectively.It can be with from figure
Find out, 301 corresponding region 311 of region and its neighbouring dark line should be appeared in obviously to 302 corresponding region 312 of region
(pixel center) deviates.
Therefore, for the dark line problem of the pixel electrode of side " T " font structure, a kind of new pixel electrode is needed to design.
Invention content
For the dark line problem of the pixel electrode of side " T " font structure, the present invention provides a kind of liquid crystal pixel cells, institutes
The pixel electrode for stating pixel unit uses side " T " shape structure, is configured in the pixel unit for increasing the pixel electricity
The interference electrode of electric field at pole " T " word crossover location, wherein：
The interference electrode is using metal construction and mutual indepedent with the pixel electrode；
The interference electrode is the side " T " shape structure for only including longitudinal branch and transverse branch；
Longitudinal branch, transverse branch and " T " word crossover location of the interference electrode are located at the pixel electrode
Longitudinal branch, immediately below transverse branch and " T " word crossover location.
In one embodiment, longitudinal branch of the interference electrode and transverse branch have vertical with the pixel electrode
The shape size consistent to branch and transverse branch.
In one embodiment：
The shape size one of the shape size and longitudinal branch of the pixel electrode of longitudinal branch of the interference electrode
It causes；
It is described interference electrode transverse branch be by one towards the pixel unit center protrusion.
In one embodiment, the transverse branch of the interference electrode is that section connects with longitudinal branch of the interference electrode
Semicircle and described semicircular diameter be more than the pixel electrode transverse branch width.
In one embodiment, the interference electrode is configured to hanging or is connect with array side public electrode.
The invention also provides a kind of pixel unit dark line control methods, and the pixel unit is using side " T " shape structure
Pixel electrode is configured to increase the interference of the electric field at the pixel electrode " T " word crossover location in the pixel unit
Electrode, wherein：
The interference electrode is using metal construction and mutual indepedent with the pixel electrode；
The interference electrode is the side " T " shape structure for only including longitudinal branch and transverse branch；
Longitudinal branch, transverse branch and " T " word crossover location of the interference electrode are located at the pixel electrode
Longitudinal branch, immediately below transverse branch and " T " word crossover location.
In one embodiment, using the shape size structure consistent with longitudinal branch of the pixel electrode and transverse branch
Make longitudinal branch and the transverse branch of the interference electrode.
In one embodiment：
Longitudinal branch of the interference electrode is constructed using the shape size consistent with longitudinal branch of the pixel electrode；
It is corresponded at the pixel electrode " T " word crossover location described in one direction of construction in longitudinal branch of the interference electrode
The protrusion at pixel unit center is to form the transverse branch of the interference electrode.
In one embodiment, the transverse branch of the interference electrode is configured to the longitudinal direction point of section and the interference electrode
The semicircle that branch connects, wherein the semicircular diameter is more than the width of the transverse branch of the pixel electrode.
In one embodiment, the interference electrode is set as hanging or is connected to array side public electrode.
Compared with prior art, pixel unit according to the present invention and method can effectively control dark line, to promote production
The display taste of product and consistency；And since the pixel cell structure of the present invention is simple, construction difficulty is low, thus the present invention
Pixel unit and method have lower popularization difficulty.
The other feature or advantage of the present invention will illustrate in the following description.Also, the present invention Partial Feature or
Advantage will be become apparent by specification, or be appreciated that by implementing the present invention.The purpose of the present invention and part
Advantage can be realized or be obtained by specifically noted step in specification, claims and attached drawing.
Description of the drawings
Attached drawing is used to provide further understanding of the present invention, and a part for constitution instruction, the reality with the present invention
It applies example and is used together to explain the present invention, be not construed as limiting the invention.In the accompanying drawings：
Fig. 1 is " rice " character form structure pixel electrode schematic diagram in the prior art；
Fig. 2 is side " T " shape structure pixel electrode schematic diagram in the prior art；
Fig. 3 is side " T " shape structure pixel electrode and its corresponding display effect schematic diagram in the prior art；
Fig. 4, Fig. 5, Fig. 6 and Fig. 7 are pixel electrode according to an embodiment of the invention and interference electrode signal respectively
Figure；
Fig. 8 is the display effect schematic diagram of corresponding embodiment illustrated in fig. 7.
Specific implementation mode
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings and examples, whereby implementation personnel of the invention
Can fully understand that how the invention applies technical means to solve technical problems, and reach technique effect realization process and according to
The present invention is embodied according to above-mentioned realization process.If it should be noted that do not constitute conflict, each embodiment in the present invention
And each feature in each embodiment can be combined with each other, be formed by technical solution protection scope of the present invention it
It is interior.
For the dark line offset problem of the pixel electrode of side " T " font structure, the present invention provides a kind of pixel unit is dark
Line control method.In the prior art, the dark line offset of the pixel electrode of side " T " font structure is the left and right due to pixel edge
Symmetry be destroyed and caused by.Dark line offset is mainly shown as that dark line is easily deviated to pixel center (such as Fig. 3 right figures institute
Show from region 311 to region 312).In order to improve dark line offset, present invention employs the schemes of enhancing electric field.
Specifically, being configured to increase the interference electricity of the electric field at pixel electrode " T " word crossover location in pixel unit
(electrode is interfered using metal construction) in pole.In order to avoid interfering the normal function of electrode influences pixel electrode, interference electrode position is enabled
In the underface of pixel electrode and with pixel electrode it is mutual indepedent.Meanwhile electrode being interfered to be configured to the picture with corresponding position
The shape trend of plain electrode is consistent.
Due to dark line be from pixel electrode " T " word crossover location to offset at pixel unit center (shown in Fig. 3 left figures by
Region 301 is to region 302), it is therefore desirable to enhance the electric field at region 301.In an embodiment of the present invention, in order to not influence
The purpose for increasing the electric field at pixel electrode " T " word crossover location, interference electricity are realized under the premise of the normal function of pixel electrode
Pole also uses side " T " shape structure.Also, it in order to reduce interference of the interference electrode to pixel electrode normal function as far as possible, enables
It only includes longitudinal branch and the transverse branch of trunk to interfere the side " T " shape structure of electrode.
The side " T " shape structure of interference electrode is located at the underface of the side " T " shape structure of pixel electrode.That is, interference electrode " T "
Word crossover location is located at immediately below pixel electrode " T " word crossover location；Position is distinguished by the longitudinal branch and transverse branch for interfering electrode
In pixel electrode longitudinal branch and transverse branch underface (interference electrode it is vertical to project it is vertical with pixel electrode to
Projection overlaps).
As shown in figure 4, the side " T " shape structure of interference electrode only includes longitudinal branch 401,411 of trunk and laterally divides
Branch 402,412.Also, it is looked down from surface, interferes the side " T " shape structure of electrode and the side " T " shape structure of pixel electrode
Trunk (longitudinal branch and transverse branch) overlaps.
Since pixel edge " T " word crossover location (Trunk) has metal (interference electrode), side T-shape pixel below
Electric field at the edge positions Trunk is just enhanced.So that the liquid crystal molecule (Liquid Crystal, LC) of pixel unit is more easy to down
To the edges Trunk, cause the dark line that pixel is shown that will be pressed towards pixel edge.Further, due to metal (interference electrode)
It is opaque, it can just would be pressed against the dark line of pixel edge and cover.The position for not only improving pixel dark line in this way, also improves
The consistency that pixel unit is shown.
Further, in an embodiment of the present invention, construction and longitudinal branch of pixel electrode and the shape of transverse branch
Longitudinal branch of shape interference electrode of the same size and transverse branch.That is, longitudinal branch and the transverse branch of interference electrode
Length and width of the length and width respectively with longitudinal branch of pixel electrode and transverse branch be consistent.As shown in figure 4, interference electrode
Longitudinal branch 401,411 and transverse branch 402,412 are kept with longitudinal branch of pixel electrode and the length and width of transverse branch
Unanimously.
In practical applications, longitudinal branch of the side " T " shape structure of electrode and the specific size shape of transverse branch are interfered
Shape is not limited to longitudinal branch and the size shape of transverse branch of pixel electrode.As shown in figure 4, electric in order to further increase
, when constructing transverse branch 402,412, the semi-cylindrical hill that diameter is more than pixel electrode transverse branch width is constructed first
(at position 403,413, raised towards pixel unit center).Then it is laterally extended to construct transverse branch from protruding apex
402、412。
Further, the concrete shape of electrode is interfered to be not limited to the side being absolutely consistent with pixel electrode "T"-shaped
Structure.Any electricity that can increase under the premise of not influencing pixel electrode normal function at pixel electrode " T " word crossover location
The structure (deformation of side " T " shape structure) of field belongs to the solution of the present invention protection domain.
In an alternative embodiment of the invention, using the shape size construction interference electricity consistent with longitudinal branch of pixel electrode
Longitudinal branch of pole；It is corresponded in longitudinal branch and constructs one at the pixel electrode " T " word crossover location towards pixel unit center
Protrusion with formed interference electrode transverse branch.As shown in figure 5, longitudinal branch 501,511 of interference electrode is located at pixel electricity
The underface of longitudinal branch of pole and longitudinal branch of the shape size and pixel electrode of longitudinal branch 501,511 of interference electrode
Shape size it is consistent；Interfere longitudinal branch 501,511 of electrode correspond to pixel electrode " T " the word crossover location (502,
512) place is configured with one towards the protrusion at pixel unit center to form the transverse branch of interference electrode.
Further, the semicircle that the transverse branch of electrode will be interfered to be configured to section and longitudinal branch of electrode is interfered to connect
Shape, wherein semicircular diameter is more than the width of the transverse branch of pixel electrode (as shown in the positions Fig. 5 502,512).
In the present invention, in order to avoid interfering the normal function of electrode influences pixel electrode, electrode and pixel electrode are interfered
Independently of each other.Specifically, in one embodiment of this invention, setting hanging (not accessing circuit) interference electrode to.In addition,
In another embodiment of the present invention, also interference electrode can be connected to array side public electrode (Acom).
It is noted herein that when the transverse branch of the transverse branch and pixel electrode of interfering electrode is isometric (such as
Embodiment shown in Fig. 4), interference electrode directly can access array side public electrode (Acom) by transverse branch.But work as
The transverse branch for interfering electrode in short-term than the transverse branch of pixel electrode (such as embodiment shown in fig. 5), interferes electrode can not
Array side public electrode (Acom) is directly accessed by transverse branch.In order to solve this problem, in an embodiment of the present invention,
Longitudinal branch of different interference electrodes is connected by cabling and using longitudinal branch of the interference electrode at panel most edge by one
Row interference electrode is connected to array side public electrode (Acom).As shown in fig. 6, cabling 600 between two pixel units pass through connect
Meet longitudinal branch 601 and 611 of two interference electrodes.
To sum up, method and step of the invention is simple, it is easy to accomplish.Compared with prior art, according to the method for the present invention not
Dark line offset can only be improved, and dark line can be blocked.Dark line can be effectively controlled according to the method for the present invention, to be promoted
The display taste of product and consistency.
Based on the method for the present invention, the invention also provides a kind of liquid crystal pixel cells.The picture of the pixel unit of the present invention
Plain electrode uses side " T " shape structure, is configured in pixel unit for increasing the electric field at pixel electrode " T " word crossover location
Interference electrode, wherein：
Interfere electrode using metal construction and mutual indepedent with pixel electrode；
It is the side " T " shape structure for only including longitudinal branch and transverse branch to interfere electrode；
Longitudinal branch, transverse branch and " T " word crossover location of interference electrode are located at the longitudinal direction point of pixel electrode
Immediately below branch, transverse branch and " T " word crossover location.
In order to avoid the normal function of interference electrode influences pixel electrode interferes electrode in an embodiment of the present invention
Longitudinal branch and transverse branch have the shape size consistent with longitudinal branch of pixel electrode and transverse branch.Such as Fig. 4
It is shown, interfere the longitudinal branch and transverse direction of the longitudinal branch 401,411 and transverse branch 402,412 of electrode with pixel electrode
The length and width of branch are consistent.
In another embodiment of the invention, the shape size of longitudinal branch of electrode and the longitudinal direction point of pixel electrode are interfered
The shape size of branch is consistent；Interfere electrode transverse branch be by one towards the pixel unit center protrusion.Specifically, dry
The transverse branch for disturbing electrode is that section is more than pixel with the semicircle and semicircular diameter for interfering longitudinal branch of electrode to connect
The width of the transverse branch of electrode.
In order to realize that interference electrode and pixel electrode are mutual indepedent.In one embodiment of this invention, interference electrode is by structure
It causes hanging or is connect with array side public electrode.Compared with prior art, pixel unit according to the present invention can be controlled effectively
Dark line processed, to promote display taste and the consistency of product；And since the pixel cell structure of the present invention is simple, construction is difficult
Spend it is low, thus the present invention pixel unit have lower popularization difficulty.
Next with the effect of a concrete application case verification present invention.As shown in fig. 7, embodiment illustrated in fig. 7 uses
The technical solution similar with embodiment illustrated in fig. 5 constructs interference electrode 701.Fig. 8 is the final display of the technical solution of Fig. 7
Effect.801 be the corresponding position that electrode 701 is interfered in Fig. 7 in Fig. 8.
Prior art display effect is can be found that shown in comparison diagram 8 and Fig. 3 right figures.In fig. 8, offset (Fig. 3 of dark line
At middle position 312) it is effectively improved.Additionally, due to interference electrode the effect of blocking (position 801), what pixel unit was shown
Consistency greatly improves.
While it is disclosed that embodiment content as above but described only to facilitate understanding the present invention and adopting
Embodiment is not limited to the present invention.Method of the present invention can also have other various embodiments.Without departing substantially from
In the case of essence of the present invention, those skilled in the art make various corresponding changes or change in accordance with the present invention
Shape, but these corresponding changes or deformation should all belong to the scope of the claims of the present invention.
Claims (4)
1. a kind of liquid crystal pixel cells, which is characterized in that the pixel electrode of the pixel unit uses side " T " shape structure, in institute
The interference electrode being configured in pixel unit for increasing the electric field at the pixel electrode " T " word crossover location is stated, wherein：
The interference electrode is using metal construction and mutual indepedent with the pixel electrode；
The interference electrode is the side " T " shape structure for only including longitudinal branch and transverse branch；
Longitudinal branch, transverse branch and " T " word crossover location of the interference electrode are located at the vertical of the pixel electrode
To immediately below branch, transverse branch and " T " word crossover location；
The shape size of longitudinal branch of the interference electrode is consistent with the shape size of longitudinal branch of the pixel electrode；
It is described interference electrode transverse branch be by one towards the pixel unit center protrusion；
The transverse branch of the interference electrode is semicircle and described half that section connects with longitudinal branch of the interference electrode
Circular diameter is more than the width of the transverse branch of the pixel electrode.
2. pixel unit according to claim 1, which is characterized in that the interference electrode is configured to hanging or and array
Side public electrode connection.
3. a kind of pixel unit dark line control method, which is characterized in that the pixel unit is electric using the pixel of side " T " shape structure
Pole is configured to increase the interference electrode of the electric field at the pixel electrode " T " word crossover location in the pixel unit,
In：
The interference electrode is using metal construction and mutual indepedent with the pixel electrode；
The interference electrode is the side " T " shape structure for only including longitudinal branch and transverse branch；
Longitudinal branch, transverse branch and " T " word crossover location of the interference electrode are located at the vertical of the pixel electrode
To immediately below branch, transverse branch and " T " word crossover location；
Longitudinal branch of the interference electrode is constructed using the shape size consistent with longitudinal branch of the pixel electrode；
It is corresponded in longitudinal branch of the interference electrode and constructs one at the pixel electrode " T " word crossover location towards the pixel
The protrusion of unit center is to form the transverse branch of the interference electrode；
The transverse branch of the interference electrode is configured to the semicircle that section connects with longitudinal branch of the interference electrode,
In, the semicircular diameter is more than the width of the transverse branch of the pixel electrode.
4. according to the method described in claim 3, it is characterized in that, the interference electrode being set as hanging or is connected to array
Side public electrode.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201734605A (en) * | 2016-03-18 | 2017-10-01 | 友達光電股份有限公司 | Array substrate and curved liquid crystal display panel |
| KR102510428B1 (en) * | 2016-05-03 | 2023-03-15 | 삼성디스플레이 주식회사 | Display device and manufacturing method the same |
| CN106054485B (en) * | 2016-08-22 | 2019-05-31 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and preparation method thereof |
| CN106094369B (en) * | 2016-08-26 | 2019-12-24 | 深圳市华星光电技术有限公司 | Pixel electrode and curved surface liquid crystal display panel |
| CN106773423B (en) * | 2017-02-23 | 2020-05-19 | 深圳市华星光电技术有限公司 | Pixel structure, array substrate and liquid crystal display panel |
| CN109143696A (en) * | 2018-10-08 | 2019-01-04 | 惠科股份有限公司 | A kind of dot structure and display device |
| CN111090197B (en) * | 2020-01-08 | 2021-07-27 | 苏州华星光电技术有限公司 | Pixel structure and display panel |
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