CN202093285U - Pixel electrode structure - Google Patents
Pixel electrode structure Download PDFInfo
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- CN202093285U CN202093285U CN2011201883437U CN201120188343U CN202093285U CN 202093285 U CN202093285 U CN 202093285U CN 2011201883437 U CN2011201883437 U CN 2011201883437U CN 201120188343 U CN201120188343 U CN 201120188343U CN 202093285 U CN202093285 U CN 202093285U
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- pixel electrode
- vertical
- electrode structure
- strip
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Abstract
The utility model provides a pixel electrode structure, which comprises a strip horizontal main and a strip vertical main, and the horizontal main is perpendicular to and crossed with the center of the vertical main to averagely form four areas which are respectively provided with a plurality of strip branches, the plurality of strip branches are dispersed outwards from the center point formed by the fact that the horizontal main is perpendicular to and crossed with the vertical main, and the plurality of strip branches are separated by a plurality of gaps. A center area of the centers of the strip horizontal main and the strip vertical main which are perpendicular to and crossed with each other is further provided with two polygon-shaped or fan-shaped notches, the centers of the two polygon-shaped or fan-shaped notches are symmetrical. Be means of the pixel electrode structure, lighting area of the liquid crystal display panel is larger, penetrating rate is higher, and display effects are good.
Description
Technical field
The utility model relates to a kind of technical field of liquid crystal display, relates in particular to a kind of pixel electrode structure of LCD.
Background technology
LCD (LCD) is one of the most widely used flat-panel monitor, and LCD comprises a counter plate that is provided with a generating electrodes such as pixel electrode and public electrode and is arranged on two liquid crystal (LC) layers between the panel.Thereby produce electric field when voltage is applied in the generating electrodes of showing up in the LC layer, this electric field has determined the orientation of the LC molecule in the liquid crystal layer, therefore adjusts when inciding the polarisation of light of liquid crystal layer the LCD display image.
At present industry develops and a kind of macromolecule stabilization vertical orientation (Polymer Stabilized Vertical Alignment that is called, PSVA) technology, this technology are to mix the monomeric compound of debita spissitudo (monomer) and shake even in liquid crystal material.Then, mixed liquid crystal material is placed the arrival of heating on the well heater wait tropism (Isotropy) state.When liquid crystal compound was reduced to room temperature, liquid crystal compound can be got back to nematic (nematic) state.Then, liquid crystal compound is injected into liquid crystal cell and grant voltage.When applying voltage Liquid Crystal Molecules Alignment is stablized, then use the mode of ultraviolet light or heating to allow monomeric compound carry out polyreaction and become polymeric layer, reached the purpose of stable alignment thus.
Shown in Figure 1 is the design diagram of general VA mode LCD pixel electrode commonly used.
The pixel electrode of common as shown in Figure 1 VA mode LCD is designed to " rice " font, comprise strip vertical trunk (main trunk), strip horizontal trunk and respectively with horizontal trunk strip branch (slit) in a certain angle, usually, angle between strip branch and the horizontal trunk is ± 45 degree, ± 135 degree.Each strip branch is with vertically trunk and horizontal trunk are in the same plane.Wherein vertically trunk and horizontal trunk central vertical intersect, so-called central vertical intersects, refer to that promptly vertical trunk is vertical mutually with horizontal trunk, near the center that intersects vertically zone is the central area of this unit picture element electrode, this vertical trunk and horizontal trunk are divided into 4 zones (domain) with whole pixel (pixel) area, and each zone is all by forming with vertical trunk or strip branch (slit) tiling at an angle of horizontal trunk.So form shown in Figure 1 about up and down and about the electrode design of " rice " font of mirror image symmetry respectively.
Fig. 2 is presented to apply the synoptic diagram that the liquid crystal behind the voltage (be approximately 0 ~ 4V, arrow represent to have apply voltage) is toppled on the pixel electrode structure shown in Figure 1.
As shown in Figure 2, the electrode structure of " rice " font that is usually adopted is under the situation of energising, and swinging to of liquid crystal is to topple over by beginning gradually the pixel electrode inboard outside the pixel electrode, and the angle of toppling over is along branch direction, in 4 zones, the liquid crystal toppling direction of right regions is 45 degree; The liquid crystal toppling direction of top left region is 135 degree; The liquid crystal toppling direction in zone, lower-left is 225 degree; The liquid crystal toppling direction of lower right area is 315 degree, and the liquid crystal toppling direction in each zone all points to the central area of pixel electrode.
In order to promote the panel penetrance, the pixel electrode structure that prior art discloses is a symmetric design at zone line, and for the unit picture element electrode, because the liquid crystal toppling direction all points to the central area of pixel electrode, be to be bound to occur a whirlpool shape liquid crystal rotary area on trunk, physical simulation figure as shown in Figure 3, Fig. 3 is the synoptic diagram that whirlpool that the liquid crystal of pixel electrode structure is toppled over formation appears at the center.Fig. 4 is the pixel electrode structure corresponding with Fig. 3 synoptic diagram at microscopically.Wherein, the F indication is the position that liquid crystal is toppled over the whirlpool shape liquid crystal rotary area of formation.
Yet, the position of toppling over the whirlpool shape rotary area that occurs owing to liquid crystal appears at the trunk zone line or appears on the trunk slightly that the probability of fringe region roughly is identical, also promptly sometimes circinate rotary area can appear on the trunk zone at edge slightly, physical simulation figure as shown in Figure 5, Fig. 5 is the synoptic diagram that skew appears in whirlpool that the liquid crystal of pixel electrode structure is toppled over formation.Just because of this, when in case the pixel electrode energising drives liquid crystal deflection, if whirlpool shape liquid crystal rotary area F appears on the trunk fringe region slightly, " the black line " of non-homogeneous demonstration shown in then can around whirlpool shape liquid crystal rotary area F, occurring, specifically referring to the synoptic diagram Fig. 6 at microscopically, Fig. 6 is the pixel electrode structure corresponding with Fig. 5 synoptic diagram at microscopically.Whirlpool shape liquid crystal rotary area F next door is jagged among Fig. 6 is black line, in prior art shown in Figure 6, " black line " phenomenon that whirlpool shape liquid crystal Rotary District is produced is the display position place, edge that appears at two viewing areas up and down of unit picture element electrode one side, make viewing area originally change light tight zone into, thereby cause penetrance to descend, the image displaying quality effect is undesirable.
The utility model content
The utility model provides a kind of pixel electrode structure, can effectively solve the whirlpool meeting off-center position of the liquid crystal formation that causes because of the pixel electrode structure absolute symmetry in the prior art, thereby make the clear zone in the viewing area reduce the technical matters that penetrance descends.
In order to solve the problems of the technologies described above, the pixel electrode structure that the utility model provides comprises:
The horizontal trunk of strip and the vertical trunk of strip, the central vertical of described horizontal trunk and described vertical trunk intersects;
By described horizontal trunk and described vertical trunk central vertical intersect divide equally in four zones that form, has a plurality of strip branch respectively, described a plurality of strip branch outwards disperses with respect to the central point that vertical trunk and horizontal trunk intersect vertically, and is separated with many slits between described a plurality of strip branch;
Also be provided with two centrosymmetric otch in the central area that described horizontal trunk and vertical trunk intersect vertically.
Preferably, described two centrosymmetric otch is shaped as polygon or fan-shaped.
Preferably, the central area length in the horizontal direction that intersects vertically of described horizontal trunk and vertical trunk
Length for described horizontal trunk; The length of the central area in the vertical direction that described horizontal trunk and vertical trunk intersect vertically
Length for described vertical trunk.
Preferably, described by described horizontal trunk and described vertical trunk central vertical intersect divide equally in four zones that form top left region and right regions mirror image symmetry; Zone, lower-left and lower right area mirror image symmetry; Top left region and zone, lower-left mirror image symmetry; Right regions and lower right area mirror image symmetry.
Preferably, described pixel electrode structure integral body is " rice " font, and described a plurality of strip branch is 45 degree with angle between described vertical trunk and the described horizontal trunk.
Preferably, the width in described a plurality of strip branches many slits at interval is identical.
Preferably, the width difference in described a plurality of strip branches many slits at interval.
Preferably, the width of described a plurality of strip branch is identical.
Preferably, the width difference of described a plurality of strip branch.
Preferably, the pattern of the display panels of described pixel electrode structure application is macromolecule stabilization vertical alignment mode or pattern vertical alignment.
Implement embodiment of the present utility model, have following beneficial effect:
Pixel electrode structure among the application is through particular design, concrete, by two centrosymmetric otch being set in the crossing central area of vertical trunk and horizontal trunk central vertical, thereby broken the absolute symmetry of the pixel electrode structure in the existing design, make pixel electrode structure integral body present the center symmetry, but about and asymmetric, this helps guiding the incision site formation whirlpool shape liquid crystal rotary area that liquid crystal is provided with in the pixel electrode structure central area, because this otch is centrosymmetric, therefore can well fix the position of this whirlpool shape liquid crystal rotary area, also be about to whirlpool shape liquid crystal rotary area and be fixed on RC position, thereby avoid in display image, reduce in the clear zone of viewing area, and penetrance descends.The clear zone of display panels of using pixel electrode structure of the present utility model is bigger, and penetrance is higher, and display effect is good.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the design diagram of general VA mode LCD pixel electrode commonly used;
Fig. 2 is presented at the liquid crystal that applies on the pixel electrode structure shown in Figure 1 behind the voltage to swing to synoptic diagram;
Fig. 3 is the synoptic diagram that whirlpool that the liquid crystal of pixel electrode structure is toppled over formation appears at the center;
Fig. 4 is the pixel electrode structure corresponding with Fig. 3 synoptic diagram at microscopically;
Fig. 5 is the synoptic diagram that the liquid crystal of pixel electrode structure is toppled over the whirlpool appearance skew of formation;
Fig. 6 is the pixel electrode structure corresponding with Fig. 5 synoptic diagram at microscopically;
Fig. 7 is the structural representation of first embodiment of the utility model pixel electrode structure;
Fig. 8 is the structural representation of second embodiment of the utility model pixel electrode structure;
Fig. 9 is the structural representation of the 3rd embodiment of the utility model pixel electrode structure.
Embodiment
The utility model is low at the penetrance that exists in existing pixel electrode structure and the LCD array substrate, and the unfavorable defective of display effect provides a kind of novel pixel electrode structure, can effectively overcome this defective.
At first explanation is, the improvement that the pixel electrode structure of font structure that the utility model is based on existing " rice " is done, its core is to break the absolute symmetry of existing pixel electrode structure, vertical trunk and the crossing central area of horizontal trunk at pixel electrode structure are provided with two otch, and this otch is centrosymmetric.So-called center symmetry is meant that one of them polygon or fan-shaped centering on can be overlapping with another polygon behind the central point Rotate 180 degree.Thus, owing to be provided with two otch at vertical trunk and the crossing central area of horizontal trunk central vertical, give liquid crystal and swing to certain direction guide, also promptly two centrosymmetric incision site place skews, because two otch are centrosymmetric, so liquid crystal can form whirlpool shape liquid crystal rotary area herein, thus with the stationkeeping of whirlpool shape liquid crystal rotary area in the central area, avoid it to be displaced to other places and cause the penetrance of pixel electrode structure to reduce.
Implementation procedure below in conjunction with the detailed the utility model embodiment of accompanying drawing.
Referring to Fig. 7, be the structural representation of first embodiment of the utility model pixel electrode structure;
Pixel electrode structure in the present embodiment comprises:
The horizontal trunk 1 of strip and the vertical trunk 2 of strip, horizontal trunk 1 intersects with the central vertical of vertical trunk 2;
By horizontal trunk 1 and vertical trunk 2 central vertical intersect divide equally (A as shown in the figure in four zones that form, B, C, four zones of D), have respectively and horizontal trunk 1 and vertical equal at an angle a plurality of strip branch 3 of trunk 2, preferably, a plurality of strip branches 3 and horizontal trunk 1 and vertical trunk 2 all are miter angle, certainly other angles also are feasible, for example in the B zone, strip branch 3 is 30 degree angles with horizontal trunk 1, then in the a-quadrant, strip branch 3 is 150 degree angles with horizontal trunk 1, as long as a-quadrant and B zone, the strip branch 3 in the middle of C zone and the D zone keeps symmetry to get final product.Described a plurality of strip branch 3 outwards disperses with the central point O that horizontal trunk 1 intersects vertically with respect to vertical trunk 2, and 3 in a plurality of strip branch is separated with many slits 4.
(as the E zone in the dotted line scope among Fig. 8) also is provided with two centrosymmetric otch in the central area that horizontal trunk 1 and vertical trunk 2 central vertical intersect;
Need to prove that present embodiment is that two centrosymmetric otch are set on horizontal trunk 1, the shape of this otch can be a polygon or fan-shaped, and the polygon otch shown in Fig. 7 is respectively quadrilateral otch 5 and quadrilateral otch 6.
After using pixel electrode structure as shown in Figure 7, whirlpool shape liquid crystal rotary area is formed at the central area E of pixel electrode structure, the simulation drawing that this moment, liquid crystal was swung to as shown in Figure 3, therefore actual liquid crystal display in the effect of microscopically as shown in Figure 4, be that the clear zone is bigger, penetrate effectively, display effect is good.
Need to prove, intersect institute by horizontal trunk 1 and vertical trunk 2 central vertical and divide equally among four regional A, B forming, C, the D the regional mirror image symmetry of A and B; C and D zone mirror image symmetry; A and C zone mirror image symmetry; B and D zone mirror image symmetry.
Fig. 7 is the embodiment that centrosymmetric quadrilateral otch is set in the E of central area, triangular incision or parallelogram is set or fan-shaped otch also can reach same technique effect, specifically referring to Fig. 8.
Fig. 8 is the structural representation of second embodiment of pixel electrode structure of the present utility model.
Pixel electrode structure in the present embodiment comprises:
The horizontal trunk of strip and the vertical trunk of strip, horizontal trunk intersects with the central vertical of vertical trunk;
Divide equally in four zones that form with vertically the trunk central vertical is crossing by horizontal trunk, have respectively and horizontal trunk and vertical equal at an angle a plurality of strip branch of trunk, a plurality of strip branch outwards disperses with respect to the central point that vertical trunk and horizontal trunk intersect vertically, and is separated with many slits between a plurality of strip branch.
(as the E zone in the dotted line scope among Fig. 8) also is provided with two centrosymmetric otch in the central area that horizontal trunk and vertical trunk central vertical intersect;
Need to prove that present embodiment is two centrosymmetric parallelogram otch that are provided with, and is respectively parallelogram otch 5 and parallelogram otch 6 on horizontal trunk.
The polygon that the utility model provides comprises triangle, quadrilateral, and pentagon or fan-shaped or the like as long as this polygon or fan-shaped otch can play effect that the guiding liquid crystal swings to the central area all at the row of protection domain of the present utility model, does not repeat them here.
Need to prove the central area E length in the horizontal direction that horizontal trunk and vertical trunk intersect vertically
Length for horizontal trunk; The length of central area E in the vertical direction
Length for vertical trunk.
So long as two centrosymmetric polygons that are provided with in the E of central area can play the liquid crystal guide effect, make liquid crystal form whirlpool shape liquid crystal rotary area in the central area.Certainly, near horizontal trunk and the crossing central point of vertical trunk central vertical centrosymmetric polygon is set, the whirlpool shape liquid crystal rotary area that liquid crystal forms is just the closer to central point.
The polygon otch that is provided with in the E of central area cited in the foregoing description is the polygon otch that is provided with on horizontal trunk, the utility model can also vertically be provided with centrosymmetric two polygon otch on the trunk, as long as it satisfies centrosymmetric principle, and make that the left and right sides of pixel electrode structure is asymmetric, also can reach the purpose of this utility model and effect.
Fig. 9 is the structural representation of the 3rd embodiment of the utility model pixel electrode structure.
Pixel electrode structure in the present embodiment comprises:
The horizontal trunk of strip and the vertical trunk of strip, horizontal trunk intersects with the central vertical of vertical trunk;
Divide equally in four zones that form with vertically the trunk central vertical is crossing by horizontal trunk, have respectively and horizontal trunk and vertical equal at an angle a plurality of strip branch of trunk, described a plurality of strip branch outwards disperses with respect to the central point that vertical trunk and horizontal trunk intersect vertically, and is separated with many slits between a plurality of strip branch.(as the E zone in the dotted line scope among Fig. 9) also is provided with two centrosymmetric otch in the central area that horizontal trunk and vertical trunk central vertical intersect;
Need to prove that two center symmetry otch that are provided with in the present embodiment specifically are vertically on the trunk two centrosymmetric quadrilaterals 5 and 6 to be set.
Need to prove, pixel electrode of the present utility model can be applicable to macromolecule stabilization vertical alignment mode (Polymer Stabilization Vertical-Alignment, PSVA) display panels or pattern homeotropic alignment (Pattern Vertical Alignment, PVA) display panels or the like.The material of the pixel electrode in the pixel electrode structure is tin indium oxide or indium zinc oxide or amorphous tin indium oxide.
Pixel electrode structure among the application is through particular design, concrete, by two centrosymmetric otch being set in the crossing central area of vertical trunk and horizontal trunk central vertical, the shape of this otch can be a polygon or fan-shaped, thereby broken the absolute symmetry of the pixel electrode structure in the existing design, make pixel electrode structure integral body present the center symmetry, but about and asymmetric, this helps guiding polygon or the fan-shaped incision site formation whirlpool shape liquid crystal rotary area that liquid crystal is provided with in the pixel electrode structure central area, because this otch is centrosymmetric, therefore can be well the fixing position that forms of whirlpool shape liquid crystal rotary area, also be about to whirlpool and be fixed on RC position, thereby avoid in display image, reduce in the clear zone of viewing area, and penetrance descends.
The above is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also are considered as protection domain of the present utility model.
Claims (10)
1. a pixel electrode structure is characterized in that, comprising:
The horizontal trunk of strip and the vertical trunk of strip, the central vertical of described horizontal trunk and described vertical trunk intersects;
By described horizontal trunk and described vertical trunk central vertical intersect divide equally in four zones that form, has a plurality of strip branch respectively, described a plurality of strip branch outwards disperses with respect to the central point that vertical trunk and horizontal trunk intersect vertically, and is separated with many slits between described a plurality of strip branch;
Also be provided with two centrosymmetric otch in the central area that described horizontal trunk and vertical trunk central vertical intersect.
2. pixel electrode structure as claimed in claim 1 is characterized in that, described two centrosymmetric otch be shaped as polygon or fan-shaped.
3. pixel electrode structure as claimed in claim 2 is characterized in that, the central area length in the horizontal direction that described horizontal trunk and vertical trunk intersect vertically
Length for described horizontal trunk; The length of the central area in the vertical direction that described horizontal trunk and vertical trunk intersect vertically
Length for described vertical trunk.
4. pixel electrode structure as claimed in claim 2 is characterized in that, described by described horizontal trunk and described vertical trunk central vertical intersect divide equally in four zones that form top left region and right regions mirror image symmetry; Zone, lower-left and lower right area mirror image symmetry; Top left region and zone, lower-left mirror image symmetry; Right regions and lower right area mirror image symmetry.
5. pixel electrode structure as claimed in claim 4 is characterized in that, described pixel electrode structure integral body is " rice " font, and described a plurality of strip branch is 45 degree with angle between described vertical trunk and the described horizontal trunk.
6. pixel electrode structure as claimed in claim 5 is characterized in that, the width in described a plurality of strip branches many slits at interval is identical.
7. pixel electrode structure as claimed in claim 5 is characterized in that, the width difference in described a plurality of strip branches many slits at interval.
8. as claim 6 or 7 described pixel electrode structures, it is characterized in that the width of described a plurality of strip branch is identical.
9. as claim 6 or 7 described pixel electrode structures, it is characterized in that the width difference of described a plurality of strip branch.
10. as claim 6 or 7 described pixel electrode structures, it is characterized in that the pattern of the display panels that described pixel electrode structure is used is macromolecule stabilization vertical alignment mode or pattern vertical alignment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201883437U CN202093285U (en) | 2011-06-07 | 2011-06-07 | Pixel electrode structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201883437U CN202093285U (en) | 2011-06-07 | 2011-06-07 | Pixel electrode structure |
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| CN202093285U true CN202093285U (en) | 2011-12-28 |
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| CN2011201883437U Expired - Lifetime CN202093285U (en) | 2011-06-07 | 2011-06-07 | Pixel electrode structure |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236218A (en) * | 2011-06-07 | 2011-11-09 | 深圳市华星光电技术有限公司 | Pixel electrode structure |
| CN102681272A (en) * | 2012-05-24 | 2012-09-19 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device utilizing same |
| CN102707517A (en) * | 2012-05-24 | 2012-10-03 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device applied by liquid crystal display panel |
| WO2013174022A1 (en) * | 2012-05-24 | 2013-11-28 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device employing same |
| CN104460134A (en) * | 2014-12-18 | 2015-03-25 | 深圳市华星光电技术有限公司 | Pixel electrode and liquid crystal display |
-
2011
- 2011-06-07 CN CN2011201883437U patent/CN202093285U/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102236218A (en) * | 2011-06-07 | 2011-11-09 | 深圳市华星光电技术有限公司 | Pixel electrode structure |
| CN102236218B (en) * | 2011-06-07 | 2013-05-15 | 深圳市华星光电技术有限公司 | Pixel electrode structure |
| CN102681272A (en) * | 2012-05-24 | 2012-09-19 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device utilizing same |
| CN102707517A (en) * | 2012-05-24 | 2012-10-03 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device applied by liquid crystal display panel |
| WO2013174012A1 (en) * | 2012-05-24 | 2013-11-28 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device employing same |
| WO2013174019A1 (en) * | 2012-05-24 | 2013-11-28 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device employing same |
| WO2013174022A1 (en) * | 2012-05-24 | 2013-11-28 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and display device employing same |
| CN104460134A (en) * | 2014-12-18 | 2015-03-25 | 深圳市华星光电技术有限公司 | Pixel electrode and liquid crystal display |
| WO2016095276A1 (en) * | 2014-12-18 | 2016-06-23 | 深圳市华星光电技术有限公司 | Pixel electrode and liquid crystal display |
| CN104460134B (en) * | 2014-12-18 | 2017-12-01 | 深圳市华星光电半导体显示技术有限公司 | pixel electrode and liquid crystal display |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20111228 Effective date of abandoning: 20130515 |
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| RGAV | Abandon patent right to avoid regrant |