CN105204247A - Liquid crystal pixel unit, and pixel unit dark fringe control method - Google Patents
Liquid crystal pixel unit, and pixel unit dark fringe control method Download PDFInfo
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- CN105204247A CN105204247A CN201510715853.8A CN201510715853A CN105204247A CN 105204247 A CN105204247 A CN 105204247A CN 201510715853 A CN201510715853 A CN 201510715853A CN 105204247 A CN105204247 A CN 105204247A
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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 liquid crystal pixel unit, and pixel unit dark fringe control method. A pixel electrode of the pixel unit provided by the invention adopts a T-shaped structure, an interference electrode for increasing an electric field at a T-shaped crossing position of the pixel electrode is configured in the pixel unit, wherein the interference electrode adopts a metal structure and is independent of the pixel electrode; the interference electrode is of a T-shaped structure only containing a longitudinal branch and a transverse branch; the longitudinal branch, the transverse branch and the T-shaped crossing position of the interference electrode are respectively positioned just below the longitudinal branch, the transverse branch and the T-shaped crossing position of the pixel electrode. Compared with prior art, the pixel unit and method have the advantages of being capable of effectively controlling a dark fringe, so that a display taste and consistency of a product are improved; since the pixel unit is simple in structure and low in configuring difficulty, the pixel unit and method have lower promotion difficulty.
Description
Technical field
The present invention relates to technical field of liquid crystal display, relate to a kind of liquid crystal pixel cells and the dark line control method of pixel cell specifically.
Background technology
Have employed the liquid crystal display (VerticalAlignmentTFT-LCD of vertical orientated display technique, VATFT-LCD), in, the pixel electrode of HVA (HighVerticalAlignment) type is generally designed to " rice " font structure (as shown in Figure 1).
The pixel electrode design of " rice " font structure can produce dark line in right-angled intersection position (101 regions shown in Fig. 1 and near).Especially, when curved-surface display, due to the bending upper and lower base plate dislocation caused, the dark line on the long limit of cross is caused to broaden.Penetrance and the display effect of pixel cell can be had a strong impact on like this.
For the problems referred to above, in the prior art pixel electrode criss-cross construction is become two relative side " T " font structures (as shown in Figure 2), dark line is made to move to " T " word crossover location (pixel edge, as shown in Figure 2 201,202 regions and near), reduce the impact of dark line on curved-surface display.But owing to changing pixel electrode into side " T " font structure by criss-cross construction, the symmetry of the field, left and right of pixel edge is caused to be destroyed, make the dark line of pixel edge easily to pixel center skew, especially more easily cause when processing procedure produces fluctuation LCD alignment abnormal.As shown in Figure 3, the figure of left is pixel electrode structure schematic diagram, and right is corresponding pixel display effect schematic diagram, region 301,302 respectively with region 311,312 corresponding.Upper as can be seen from figure, region 311 and the neighbouring dark line thereof that should appear at region 301 correspondence obviously offset to the region 312 (pixel center) of region 302 correspondence.
Therefore, for the dark line problem of the pixel electrode of side " T " font structure, need a kind of new pixel electrode to design.
Summary of the invention
For the dark line problem of the pixel electrode of side " T " font structure, the invention provides a kind of liquid crystal pixel cells, the pixel electrode of described pixel cell adopts the "T"-shaped structure in side, the interfere with electrode of the electric field for increasing described pixel electrode " T " word crossover location place is configured with in described pixel cell, wherein:
Described interfere with electrode adopts metal construction and separate with described pixel electrode;
Described interfere with electrode is the "T"-shaped structure in side only comprising longitudinal branch and transverse branch;
Longitudinal branch of described interfere with electrode, transverse branch and " T " word crossover location lay respectively at immediately below longitudinal branch of described pixel electrode, transverse branch and " T " word crossover location.
In one embodiment, longitudinal branch of described interfere with electrode and transverse branch have the shape size consistent with longitudinal branch of described pixel electrode and transverse branch.
In one embodiment:
The shape size of longitudinal branch of described interfere with electrode is consistent with the shape size of longitudinal branch of described pixel electrode;
The transverse branch of described interfere with electrode is towards the projection at described pixel cell center by one.
In one embodiment, the transverse branch of described interfere with electrode is the semicircle that connects with longitudinal branch of described interfere with electrode of tangent plane and described semicircular diameter is greater than the width of the transverse branch of described pixel electrode.
In one embodiment, described interfere with electrode is configured to unsettled or is connected with array side public electrode.
The invention allows for the dark line control method of a kind of pixel cell, described pixel cell adopts the pixel electrode of the "T"-shaped structure in side, is configured to the interfere with electrode of the electric field increasing described pixel electrode " T " word crossover location place in described pixel cell, wherein:
Described interfere with electrode adopts metal construction and separate with described pixel electrode;
Described interfere with electrode is the "T"-shaped structure in side only comprising longitudinal branch and transverse branch;
Longitudinal branch of described interfere with electrode, transverse branch and " T " word crossover location lay respectively at immediately below longitudinal branch of described pixel electrode, transverse branch and " T " word crossover location.
In one embodiment, the shape size consistent with longitudinal branch of described pixel electrode and transverse branch is adopted to construct longitudinal branch and the transverse branch of described interfere with electrode.
In one embodiment:
The shape size consistent with longitudinal branch of described pixel electrode is adopted to construct longitudinal branch of described interfere with electrode;
At the longitudinal branch of described interfere with electrode corresponding described pixel electrode " T " word crossover location place structure one towards the projection at described pixel cell center to form the transverse branch of described interfere with electrode.
In one embodiment, the transverse branch of described interfere with electrode is configured to the semicircle that tangent plane connects with longitudinal branch of described interfere with electrode, wherein, described semicircular diameter is greater than the width of the transverse branch of described pixel electrode.
In one embodiment, described interfere with electrode be set to unsettled or be connected to array side public electrode.
Compared with prior art, can effectively control dark line according to pixel cell of the present invention and method, thus the display taste of improving product and consistance; And because pixel cell structure of the present invention is simple, structure difficulty is low, and thus pixel cell of the present invention and method have lower popularization difficulty.
Further feature of the present invention or advantage will be set forth in the following description.Further, Partial Feature of the present invention or advantage will be become apparent by instructions, or be understood by implementing the present invention.Object of the present invention and certain advantages realize by step specifically noted in instructions, claims and accompanying drawing or obtain.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for instructions, with embodiments of the invention jointly for explaining the present invention, is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is " rice " character form structure pixel electrode schematic diagram in prior art;
Fig. 2 is the "T"-shaped structure-pixel electrode in side schematic diagram in prior art;
Fig. 3 is side "T"-shaped structure-pixel electrode and corresponding display effect schematic diagram thereof in prior art;
Fig. 4, Fig. 5, Fig. 6 and Fig. 7 are pixel electrode and interfere with electrode schematic diagram according to an embodiment of the invention respectively;
Fig. 8 is display effect schematic diagram corresponding embodiment illustrated in fig. 7.
Embodiment
Embodiments of the present invention are described in detail below with reference to drawings and Examples, enforcement personnel of the present invention whereby can fully understand how application technology means solve technical matters in the present invention, and reach the implementation procedure of technique effect and specifically implement the present invention according to above-mentioned implementation procedure.It should be noted that, only otherwise form conflict, each embodiment in the present invention and each feature in each embodiment can be combined with each other, and the technical scheme formed is all within protection scope of the present invention.
For the dark line offset problem of the pixel electrode of side " T " font structure, the invention provides the dark line control method of a kind of pixel cell.In the prior art, the dark line skew of the pixel electrode of side " T " font structure causes because the symmetry of the field, left and right of pixel edge is destroyed.The main manifestations of dark line skew is for dark line is easily to pixel center skew (shown in figure as right in Fig. 3 by region 311 to region 312).In order to improve the skew of dark line, present invention employs the scheme strengthening electric field.
Concrete, in pixel cell, be configured to the interfere with electrode (adopting metal construction interfere with electrode) of the electric field increasing pixel electrode " T " word crossover location place.In order to avoid interfere with electrode affects the normal function of pixel electrode, interfere with electrode is made to be positioned at immediately below pixel electrode and separate with pixel electrode.Meanwhile, interfere with electrode is configured to move towards to be consistent with the shape of the pixel electrode of corresponding position.
Because dark line offsets (the left figure of Fig. 3 shown in by region 301 to region 302) from pixel electrode " T " word crossover location to pixel cell center, therefore need the electric field strengthening region 301 place.In an embodiment of the present invention, in order to realize the object of the electric field increasing pixel electrode " T " word crossover location place under the prerequisite of normal function not affecting pixel electrode, interfere with electrode also adopts the "T"-shaped structure in side.Further, in order to reduce the interference of interfere with electrode to pixel electrode normal function as much as possible, the "T"-shaped structure in the side of interfere with electrode is made only to comprise longitudinal branch and the transverse branch of trunk.
The "T"-shaped structure in side of interfere with electrode is positioned at immediately below the "T"-shaped structure in side of pixel electrode.That is, interfere with electrode " T " word crossover location is positioned at immediately below pixel electrode " T " word crossover location; Immediately below longitudinal branch that longitudinal branch of interfere with electrode and transverse branch lay respectively at pixel electrode and transverse branch (the Vertical dimension projection of interfere with electrode projects with the Vertical dimension of pixel electrode and overlaps).
As shown in Figure 4, the "T"-shaped structure in the side of interfere with electrode only comprises longitudinal branch 401,411 and the transverse branch 402,412 of trunk.Further, from directly over look down, the "T"-shaped structure in side of interfere with electrode overlaps with the trunk (longitudinal branch and transverse branch) of the "T"-shaped structure in the side of pixel electrode.
Because pixel edge " T " word crossover location (Trunk) has metal (interfere with electrode) below, therefore the electric field of side T-shape pixel edge Trunk position is just enhanced.Make the liquid crystal molecule (LiquidCrystal, LC) of pixel cell more easily swing to Trunk edge, the dark line causing pixel to show will be pressed towards pixel edge.Further, because metal (interfere with electrode) is light tight, just in time the line being pressed onto pixel edge dark can be covered.Not only improve the position of the dark line of pixel like this, also improve the consistance of pixel cell display.
Further, in an embodiment of the present invention, longitudinal branch and the transverse branch of the interfere with electrode consistent with longitudinal branch of pixel electrode and the shape size of transverse branch is constructed.That is, longitudinal branch of interfere with electrode and the length and width of transverse branch are consistent with longitudinal branch of pixel electrode and the length and width of transverse branch respectively.As shown in Figure 4, longitudinal branch 401,411 of interfere with electrode and longitudinal branch of transverse branch 402,412 and pixel electrode and the length and width of transverse branch are consistent.
In actual applications, longitudinal branch of the "T"-shaped structure in the side of interfere with electrode and the concrete size shape of transverse branch are not limited to longitudinal branch of pixel electrode and the size shape of transverse branch.As shown in Figure 4, in order to increase electric field further, when constructing transverse branch 402,412, first construct the semi-cylindrical hill (position 403,413 place, protruding towards pixel cell center) that diameter is greater than pixel electrode transverse branch width.Then from protruding apex horizontal expansion thus structure transverse branch 402,412.
Further, the "T"-shaped structure in side that the concrete shape of interfere with electrode is not limited to definitely and pixel electrode is consistent.Any electric field structure (distortion of the "T"-shaped structure in side) that can increase pixel electrode " T " word crossover location place under the prerequisite not affecting pixel electrode normal function all belongs to the solution of the present invention protection domain.
In an alternative embodiment of the invention, the shape size consistent with longitudinal branch of pixel electrode is adopted to construct longitudinal branch of interfere with electrode; At longitudinal branch corresponding described pixel electrode " T " word crossover location place structure one towards the projection at pixel cell center to form the transverse branch of interfere with electrode.As shown in Figure 5, longitudinal branch 501,511 of interfere with electrode be positioned at pixel electrode longitudinal branch immediately below and the shape size of longitudinal branch 501,511 of interfere with electrode is consistent with the shape size of longitudinal branch of pixel electrode; Corresponding described pixel electrode " T " word crossover location (502, the 512) place of longitudinal branch 501,511 of interfere with electrode is configured with one towards the projection at pixel cell center to form the transverse branch of interfere with electrode.
Further, the transverse branch of interfere with electrode is configured to the semicircle that tangent plane connects with longitudinal branch of interfere with electrode, wherein, semicircular diameter is greater than the width (shown in Fig. 5 position 502,512) of the transverse branch of pixel electrode.
In the present invention, in order to avoid interfere with electrode affects the normal function of pixel electrode, interfere with electrode and pixel electrode separate.Concrete, in one embodiment of this invention, interfere with electrode is set to unsettled (not place in circuit).In addition, in another embodiment of the invention, also interfere with electrode can be connected to array side public electrode (Acom).
It is noted herein that, when the transverse branch of interfere with electrode and the transverse branch of pixel electrode isometric time (embodiment such as shown in Fig. 4), interfere with electrode can directly by transverse branch access array side public electrode (Acom).But when interfere with electrode transverse branch than pixel electrode transverse branch in short-term (embodiment such as shown in Fig. 5), interfere with electrode cannot directly by transverse branch access array side public electrode (Acom).In order to address this problem, in an embodiment of the present invention, connect longitudinal branch of different interfere with electrode by cabling and utilize longitudinal branch of the interfere with electrode at the most edge of panel that one row interfere with electrode is connected to array side public electrode (Acom).As shown in Figure 6, cabling 600 is from the longitudinal branch 601 and 611 through connection two interfere with electrode between two pixel cells.
To sum up, method step of the present invention is simple, is easy to realize.Compared with prior art, not only can improve the skew of dark line according to method of the present invention, and dark line can be blocked.Dark line can be effectively controlled according to method of the present invention, thus the display taste of improving product and consistance.
Based on method of the present invention, the invention allows for a kind of liquid crystal pixel cells.The pixel electrode of pixel cell of the present invention adopts the "T"-shaped structure in side, is configured with the interfere with electrode of the electric field for increasing pixel electrode " T " word crossover location place in pixel cell, wherein:
Interfere with electrode adopts metal construction and separate with pixel electrode;
Interfere with electrode is the "T"-shaped structure in side only comprising longitudinal branch and transverse branch;
Longitudinal branch of interfere with electrode, transverse branch and " T " word crossover location lay respectively at immediately below longitudinal branch of pixel electrode, transverse branch and " T " word crossover location.
In order to avoid interfere with electrode affects the normal function of pixel electrode, in an embodiment of the present invention, longitudinal branch of interfere with electrode and transverse branch have the shape size consistent with longitudinal branch of pixel electrode and transverse branch.As shown in Figure 4, longitudinal branch 401,411 of interfere with electrode and longitudinal branch of transverse branch 402,412 and pixel electrode and the length and width of transverse branch are consistent.
In another embodiment of the invention, the shape size of longitudinal branch of interfere with electrode is consistent with the shape size of longitudinal branch of pixel electrode; The transverse branch of interfere with electrode is towards the projection at described pixel cell center by one.Concrete, the transverse branch of interfere with electrode is the semicircle that connects with longitudinal branch of interfere with electrode of tangent plane and semicircular diameter is greater than the width of the transverse branch of pixel electrode.
In order to realize interfere with electrode and pixel electrode is separate.In one embodiment of this invention, interfere with electrode is configured to unsettled or is connected with array side public electrode.Compared with prior art, can effectively control dark line according to pixel cell of the present invention, thus the display taste of improving product and consistance; And because pixel cell structure of the present invention is simple, structure difficulty is low, and thus pixel cell of the present invention has lower popularization difficulty.
Next with embody rule case verification effect of the present invention.As shown in Figure 7, embodiment illustrated in fig. 7 have employed constructs interfere with electrode 701 with similar technical scheme embodiment illustrated in fig. 5.Fig. 8 is the final display effect of the technical scheme of Fig. 7.801 correspondence positions being interfere with electrode 701 in Fig. 7 in Fig. 8.
Prior art display effect shown in comparison diagram 8 and the right figure of Fig. 3 can find.In fig. 8, the skew (in Fig. 3 position 312 place) of dark line obtains effective improvement.In addition due to the effect of blocking (position 801) of interfere with electrode, the consistance of pixel cell display improves greatly.
Although embodiment disclosed in this invention is as above, the embodiment that described content just adopts for the ease of understanding the present invention, and be not used to limit the present invention.Method of the present invention also can have other various embodiments.When not deviating from essence of the present invention, those of ordinary skill in the art are when making various corresponding change or distortion according to the present invention, but these change accordingly or are out of shape the protection domain that all should belong to claim of the present invention.
Claims (10)
1. a liquid crystal pixel cells, is characterized in that, the pixel electrode of described pixel cell adopts the "T"-shaped structure in side, is configured with the interfere with electrode of the electric field for increasing described pixel electrode " T " word crossover location place in described pixel cell, wherein:
Described interfere with electrode adopts metal construction and separate with described pixel electrode;
Described interfere with electrode is the "T"-shaped structure in side only comprising longitudinal branch and transverse branch;
Longitudinal branch of described interfere with electrode, transverse branch and " T " word crossover location lay respectively at immediately below longitudinal branch of described pixel electrode, transverse branch and " T " word crossover location.
2. pixel cell according to claim 1, is characterized in that, longitudinal branch of described interfere with electrode and transverse branch have the shape size consistent with longitudinal branch of described pixel electrode and transverse branch.
3. pixel cell according to claim 1, is characterized in that:
The shape size of longitudinal branch of described interfere with electrode is consistent with the shape size of longitudinal branch of described pixel electrode;
The transverse branch of described interfere with electrode is towards the projection at described pixel cell center by one.
4. pixel cell according to claim 3, is characterized in that, the transverse branch of described interfere with electrode is the semicircle that connects with longitudinal branch of described interfere with electrode of tangent plane and described semicircular diameter is greater than the width of the transverse branch of described pixel electrode.
5. the pixel cell according to any one of claim 1-4, is characterized in that, described interfere with electrode is configured to unsettled or is connected with array side public electrode.
6. the dark line control method of pixel cell, is characterized in that, described pixel cell adopts the pixel electrode of the "T"-shaped structure in side, is configured to the interfere with electrode of the electric field increasing described pixel electrode " T " word crossover location place in described pixel cell, wherein:
Described interfere with electrode adopts metal construction and separate with described pixel electrode;
Described interfere with electrode is the "T"-shaped structure in side only comprising longitudinal branch and transverse branch;
Longitudinal branch of described interfere with electrode, transverse branch and " T " word crossover location lay respectively at immediately below longitudinal branch of described pixel electrode, transverse branch and " T " word crossover location.
7. method according to claim 6, is characterized in that, adopts the shape size consistent with longitudinal branch of described pixel electrode and transverse branch to construct longitudinal branch and the transverse branch of described interfere with electrode.
8. method according to claim 6, is characterized in that:
The shape size consistent with longitudinal branch of described pixel electrode is adopted to construct longitudinal branch of described interfere with electrode;
At the longitudinal branch of described interfere with electrode corresponding described pixel electrode " T " word crossover location place structure one towards the projection at described pixel cell center to form the transverse branch of described interfere with electrode.
9. method according to claim 8, it is characterized in that, the transverse branch of described interfere with electrode is configured to the semicircle that tangent plane connects with longitudinal branch of described interfere with electrode, wherein, described semicircular diameter is greater than the width of the transverse branch of described pixel electrode.
10. the method according to any one of claim 6-9, is characterized in that, is set to unsettled or is connected to array side public electrode by described interfere with electrode.
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| CN106054485A (en) * | 2016-08-22 | 2016-10-26 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and manufacturing method thereof |
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| CN107346081A (en) * | 2016-05-03 | 2017-11-14 | 三星显示有限公司 | Display device and its manufacture method |
| WO2018152864A1 (en) * | 2017-02-23 | 2018-08-30 | 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 |
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| CN109143696A (en) * | 2018-10-08 | 2019-01-04 | 惠科股份有限公司 | A kind of dot structure and display device |
| CN111090197A (en) * | 2020-01-08 | 2020-05-01 | 深圳市华星光电半导体显示技术有限公司 | Pixel structure and display panel |
| 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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