CN202735641U - Array substrate and display device - Google Patents
Array substrate and display device Download PDFInfo
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- CN202735641U CN202735641U CN201220451519.8U CN201220451519U CN202735641U CN 202735641 U CN202735641 U CN 202735641U CN 201220451519 U CN201220451519 U CN 201220451519U CN 202735641 U CN202735641 U CN 202735641U
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- public electrode
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Abstract
The utility model discloses an array substrate and a display device. The array substrate comprises a common electrode and a pixel electrode which are formed on the substrate, the common electrode comprises a first common electrode and a second common electrode, the first common electrode is arranged below the pixel electrode and separated from the pixel electrode through an insulating layer, the second common electrode and the pixel electrode are arranged on the same layer, the pixel electrode is in a strip shape, the second common electrode is in the strip shape, and the second common electrode and the pixel electrode are arranged at intervals. The display device comprises the array substrate.
Description
Technical field
The utility model relates to the display technique field, particularly relates to a kind of array base palte and display device.
Background technology
The advantages such as in the last few years, Thin Film Transistor-LCD relied on its low-power consumption, and was radiationless become the main flow trend of present demonstration produce market gradually.
Fig. 1 is the planar structure synoptic diagram of pixel among a kind of traditional TFT-LCD, Fig. 1 a and Fig. 1 b are respectively the enlarged drawing of two regional areas among Fig. 1, Fig. 2 is corresponding to the cut-open view of the A-A ' position among Fig. 1, in illustrated dot structure, public electrode 1 is plate electrode, pixel electrode 2 is strip shaped electric poles, and pixel electrode 2 is positioned at public electrode 1 top, forms fringe field E between pixel electrode 2 and the public electrode 1
fAnd very large overlapping area is arranged between public electrode 1 and the pixel electrode 2, be public electrode 1 with pixel electrode 2 respectively the projection on substrate to overlap area very large, the memory capacitance that forms between public electrode 1 and pixel electrode 2 thus is larger, based on being prone to the bad phenomenon relevant with discharging and recharging of pixel in the formed display device of this dot structure, for the high-frequency display panel manufacturing of large scale, this problem will be further serious.
The utility model content
The technical matters that (one) will solve
Primary technical matters to be solved in the utility model is the liquid crystal light efficiency that how to strengthen in the liquid crystal display device, to realize its high permeability;
The technical matters that the utility model further will solve be how to avoid memory capacitance between pixel electrode and public electrode excessive occur discharge and recharge bad phenomenon.
(2) technical scheme
In order to solve the problems of the technologies described above, the utility model provides a kind of array base palte, comprises the public electrode and the pixel electrode that are formed on the substrate; Described public electrode comprises the first public electrode and the second public electrode, described the first public electrode is arranged at described pixel electrode below and separates by insulation course and described pixel electrode, described the second public electrode and described pixel electrode arrange with layer, described pixel electrode is strip shaped electric poles, and described the second public electrode is strip shaped electric poles and arranges with described pixel electrode space.
Wherein, described the first public electrode is plate electrode.
Wherein, the projection of described pixel electrode on described substrate is designated as the first projection, and the projection of described the first public electrode on described substrate is designated as the second projection, and described the first projection falls in described the second projection fully.
Wherein, described the first public electrode is strip shaped electric poles.
Wherein, the width of described the first public electrode is less than the width of described pixel electrode; The projection of described pixel electrode on described substrate is designated as the first projection, and the projection of described the first public electrode on described substrate is designated as the second projection, and described the second projection falls in described the first projection fully.
Wherein, the projection of described pixel electrode on described substrate is designated as the first projection, the projection of described the first public electrode on described substrate is designated as the second projection, and two end regions of described first projection width's direction overlap with the subregion of two adjacent the second projections respectively.
Wherein, the width of described the first public electrode is greater than the width of opening between two adjacent pixel electrodes.
Wherein, described the first projection overlap with the second projection the zone width be 6 μ m-10 μ m.
Wherein, every described pixel electrode and the second public electrode comprise respectively integrally formed two parts electrode, have certain angle between this two parts electrode.
The invention also discloses a kind of display device, this display device comprises above-mentioned each described array base palte.
(3) beneficial effect
The array base palte that technique scheme provides and display device, by the pixel electrode of strip is set, and the first public electrode is set to form fringe field below pixel electrode, with layer strip the second public electrode is set and makes pixel electrode and the second public electrode interval layout with pixel electrode, to form the face internal electric field, strengthen the liquid crystal light efficiency thereby reach, realize the technique effect of high permeability, the array base palte of high permeability can also be saved the energy loss of backlight in the display device greatly, and the pixel electrode structure of simultaneously strip distribution also can be avoided the lower phenomenon of pixel center zone transmitance among traditional TFT-LCD; In addition, because the second public electrode is set, the area of pixel electrode reduces relatively, thereby can reduce to a certain extent with the overlapping area of the first public electrode, can solve in the dot structure since memory capacitance excessive cause discharge and recharge the technical matterss such as bad.
Description of drawings
Fig. 1 shows the planar structure synoptic diagram of traditional TFT-LCD pixel;
Fig. 1 a shows the partial enlarged drawing in M zone among Fig. 1;
Fig. 1 b shows the partial enlarged drawing of n-quadrant among Fig. 1;
Fig. 2 shows the structural representation of electrode and electric field among traditional TFT-LCD;
Fig. 3 shows the planar structure synoptic diagram of TFT-LCD pixel among the utility model embodiment 1;
Fig. 4 shows sectional structure corresponding with A-A ' position among Fig. 3 among the utility model embodiment 1 and electric field status synoptic diagram;
Fig. 5 shows based on the display device of the utility model embodiment 1 cut-open view corresponding to B-B ' position among Fig. 3;
Fig. 6 shows sectional structure corresponding with A-A ' position among Fig. 3 among the utility model embodiment 2 and electric field status synoptic diagram;
Fig. 7 shows based on the display device of the utility model embodiment 2 cut-open view corresponding to B-B ' position among Fig. 3;
Fig. 8 shows sectional structure corresponding with A-A ' position among Fig. 3 among the utility model embodiment 3 and electric field status synoptic diagram;
Fig. 9 shows based on the display device of the utility model embodiment 3 cut-open view corresponding to B-B ' position among Fig. 3.
Wherein, 1: public electrode; 2: pixel electrode; 3: insulation course; 4: passivation layer; 5: array base palte; 6: data line; 7: liquid crystal layer; 8: photomask; 9: color membrane substrates; E
f: fringe field; E
p: the face internal electric field.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
Fig. 3 shows in the present embodiment planar structure synoptic diagram of pixel among the TFT-LCD, and Fig. 4 is the cut-open view of A-A ' position in the corresponding diagram 3.With reference to diagram, present embodiment has changed the structure of pixel electrode and public electrode set on traditional substrate, adopt a kind of novel structure that pixel electrode and public electrode are set, particularly, pixel electrode 2 is set to strip shaped electric poles, public electrode 1 comprises the first public electrode (not indicating among the figure) that is arranged at described pixel electrode 2 belows and separates by insulation course and described pixel electrode 2, and second public electrodes (indicating among the figure) that arrange with layer with described pixel electrode 2, described the second public electrode is strip shaped electric poles and arranges with described pixel electrode 2 spaces.The first public electrode and the pixel electrode 2 that are positioned at described pixel electrode 2 belows form fringe field E
f, form face internal electric field E with described pixel electrode 2 with the second public electrode and the pixel electrode 2 that layer arranges
p, fringe field and face internal electric field exist simultaneously, can reach the technique effect that strengthens the liquid crystal light efficiency, realizes high permeability.
Further, described the first public electrode is set to plate electrode; The projection of described pixel electrode 2 on described substrate is designated as the first projection, the projection of described the first public electrode on described substrate is designated as the second projection, described the first projection falls in described the second projection fully, i.e. described the first projection is exactly the area of the first projection with the area that overlaps the zone of the second projection.Because described pixel electrode 2 is strip shaped electric poles, tabular pixel electrode is compared greatly with the overlapping area between tabular public electrode and is reduced in the area (being the area that both projections coincide) that each strip pixel electrode 2 and the first public electrode overlap mutually and the prior art, the memory capacitance that forms between pixel electrode 2 and the first public electrode is less, can avoid the bad series of problems of Denging that discharges and recharges that causes owing to memory capacitance is excessive.
In the present embodiment, the strip shaped electric poles of pixel electrode 2 for being evenly arranged, the width in the zone that pixel electrode 2 and its below the first public electrode overlap mutually is arranged between the 6 μ m-10 μ m, be entirely the zone of pixel electrode 2 self because of the zone of overlapping mutually between pixel electrode in the present embodiment 2 and the first public electrode, so it is the width of pixel electrode 2 that above-mentioned width namely can be interpreted as, formed memory capacitance is used for keeping the voltage of pixel electrode 2 between pixel electrode 2 and the first public electrode, if above-mentioned width value is larger, the memory capacitance that then forms is larger, cause that pixel electrode 2 chargings are bad, be difficult for being full of; This width value is too small, and memory capacitance then can not effectively be kept the voltage of pixel electrode 2.
Based on above-mentioned array base palte, present embodiment also provides a kind of display device, Fig. 5 shows based on the display device of the above-mentioned array base palte cut-open view corresponding to B-B ' position among Fig. 3, with reference to diagram, this display device comprises array base palte 5, color membrane substrates 9 and the liquid crystal layer 7 between array base palte 5 and color membrane substrates 9, particularly, be formed with the first tabular public electrode on the array base palte 5, insulation course 3, data line 6, passivation layer 4, the second public electrode of the pixel electrode 2 of strip and the strip arranged with pixel electrode 2 same aspects and space is provided with photomask 8 on the color membrane substrates 9.
Among Fig. 3, every described pixel electrode and the second public electrode comprise respectively integrally formed two parts electrode, have certain angle between this two parts electrode; That is, described pixel electrode and the second public electrode all are crooked strip.
The aforementioned display device part can have for liquid crystal panel, Electronic Paper, oled panel, LCD TV, liquid crystal display, digital album (digital photo frame), mobile phone, panel computer etc. product or the parts of any Presentation Function.The energy loss of using the array base palte of above-mentioned high permeability can also greatly save backlight in the display device, the pixel electrode structure that distributes of strip also can be avoided the lower phenomenon of pixel center zone transmitance among traditional TFT-LCD simultaneously.
Fig. 6 shows in the present embodiment cut-open view corresponding to A-A ' position among Fig. 3, with reference to diagram, the array base-plate structure of present embodiment is similar to embodiment 1, pixel electrode 2 set-up modes are constant, also constant with the set-up mode of strip second public electrode of pixel electrode 2 same aspects, its difference part is, the first public electrode in the present embodiment is set to strip shaped electric poles, the width of the first public electrode is less than the width of pixel electrode 2, the projection of described pixel electrode 2 on described substrate is designated as the first projection, the projection of described the first public electrode on described substrate is designated as the second projection, and described the second projection falls in described the first projection fully.
In the present embodiment, the first public electrode is designed to than the little strip shaped electric poles of pixel electrode 2 width, can under the prerequisite that realizes fringe field, reduce memory capacitance equally.The width in the zone that pixel electrode 2 and the first public electrode overlap mutually also is arranged between the 6 μ m-10 μ m, and namely the width of the first public electrode is set between the 6 μ m-10 μ m.
Based on above-mentioned array base palte, present embodiment provides a kind of display device, Fig. 7 shows based on the display device of the above-mentioned array base palte cut-open view corresponding to B-B ' position among Fig. 3, with reference to diagram, its structure is similar to embodiment 1, the difference part is that the set-up mode of the first public electrode on the substrate changes, and is consistent with the structure of pixel electrode and public electrode on the array base palte of present embodiment.
Array base palte in the present embodiment and corresponding display device thereof, formed memory capacitance is little in the dot structure, can avoid since memory capacitance excessive cause discharge and recharge the bad series of problems of Denging, and have simultaneously fringe field E
fWith face internal electric field E
pThereby, can strengthen the technique effect that the liquid crystal light efficiency is realized high permeability, the panel of high permeability can also be saved the energy loss of backlight in the display device greatly.
Fig. 8 shows in the present embodiment cut-open view corresponding to A-A ' position among Fig. 3, with reference to diagram, the array base-plate structure of present embodiment is similar to embodiment 1, pixel electrode 2 set-up modes are constant, also constant with the set-up mode of the second public electrode of pixel electrode 2 same aspects, its difference part is, the first public electrode in the present embodiment is set to strip shaped electric poles, the projection of described pixel electrode 2 on described substrate is designated as the first projection, the projection of described the first public electrode on described substrate is designated as the second projection, and two end regions of described first projection width's direction overlap with the subregion of two adjacent the second projections respectively.Particularly, the width of described the first public electrode is greater than the width of opening between two adjacent pixel electrodes 2, simultaneously, the width of pixel electrode 2 is also greater than the width of opening between adjacent two the first public electrodes, it is overlapping to realize that each first public electrode and adjacent two pixel electrodes 2 all have, and each pixel electrode 2 also all has overlapping with adjacent two the first public electrodes.
In the present embodiment, the overlapping area of the first public electrode and pixel electrode 2 is less, and the width of overlapping region maintains between the 6 μ m-10 μ m, can under the prerequisite that realizes fringe field, reduce memory capacitance equally.
Based on above-mentioned array base palte, present embodiment provides a kind of display device, Fig. 9 shows based on the display device of the above-mentioned array base palte cut-open view corresponding to B-B ' position among Fig. 3, with reference to diagram, its structure is similar to embodiment 1, the difference part is that the set-up mode of the first public electrode on the substrate changes, and is consistent with the structure of pixel electrode and public electrode on the array base palte of present embodiment.
Array base palte in the present embodiment and corresponding display device thereof, formed memory capacitance is little in the dot structure, can avoid since memory capacitance excessive cause discharge and recharge the bad series of problems of Denging, and have simultaneously fringe field E
fWith face internal electric field E
pThereby, can strengthen the technique effect that the liquid crystal light efficiency is realized high permeability, the panel of high permeability can also be saved the energy loss of backlight in the display device greatly.
As can be seen from the above embodiments, in the utility model embodiment array base palte and the display device, by the pixel electrode of strip is set, and the first public electrode is set to form fringe field below pixel electrode, with layer strip the second public electrode is set and makes pixel electrode and the second public electrode interval layout with pixel electrode, to form the face internal electric field, strengthen the liquid crystal light efficiency thereby reach, realize the technique effect of high permeability, the array base palte of high permeability can also be saved the energy loss of backlight in the display device greatly, and the pixel electrode structure of simultaneously strip distribution also can be avoided the lower phenomenon of pixel center zone transmitance among traditional TFT-LCD; In addition, because the second public electrode is set, the area of pixel electrode reduces relatively, thereby can reduce to a certain extent with the overlapping area of the first public electrode, can solve in the dot structure since memory capacitance excessive cause discharge and recharge the technical matterss such as bad.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (10)
1. an array base palte comprises the public electrode and the pixel electrode that are formed on the substrate; It is characterized in that, described public electrode comprises the first public electrode and the second public electrode, described the first public electrode is arranged at described pixel electrode below and separates by insulation course and described pixel electrode, described the second public electrode and described pixel electrode arrange with layer, described pixel electrode is strip shaped electric poles, and described the second public electrode is strip shaped electric poles and arranges with described pixel electrode space.
2. array base palte as claimed in claim 1 is characterized in that, described the first public electrode is plate electrode.
3. array base palte as claimed in claim 2, it is characterized in that, the projection of described pixel electrode on described substrate is designated as the first projection, and the projection of described the first public electrode on described substrate is designated as the second projection, and described the first projection falls in described the second projection fully.
4. array base palte as claimed in claim 1 is characterized in that, described the first public electrode is strip shaped electric poles.
5. array base palte as claimed in claim 4 is characterized in that, the width of described the first public electrode is less than the width of described pixel electrode; The projection of described pixel electrode on described substrate is designated as the first projection, and the projection of described the first public electrode on described substrate is designated as the second projection, and described the second projection falls in described the first projection fully.
6. array base palte as claimed in claim 4, it is characterized in that, the projection of described pixel electrode on described substrate is designated as the first projection, the projection of described the first public electrode on described substrate is designated as the second projection, and two end regions of described first projection width's direction overlap with the subregion of two adjacent the second projections respectively.
7. array base palte as claimed in claim 6 is characterized in that, the width of described the first public electrode is greater than the width of opening between two adjacent pixel electrodes.
8. such as claim 3,5 or 6 described array base paltes, it is characterized in that described the first projection overlaps the zone with the second projection width is 6 μ m-10 μ m.
9. array base palte as claimed in claim 1 is characterized in that, every described pixel electrode and the second public electrode comprise respectively integrally formed two parts electrode, have certain angle between this two parts electrode.
10. a display device is characterized in that, comprises each described array base palte in the claims.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220451519.8U CN202735641U (en) | 2012-09-05 | 2012-09-05 | Array substrate and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220451519.8U CN202735641U (en) | 2012-09-05 | 2012-09-05 | Array substrate and display device |
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| Publication Number | Publication Date |
|---|---|
| CN202735641U true CN202735641U (en) | 2013-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201220451519.8U Expired - Lifetime CN202735641U (en) | 2012-09-05 | 2012-09-05 | Array substrate and display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830557A (en) * | 2012-09-05 | 2012-12-19 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN103454817A (en) * | 2013-08-26 | 2013-12-18 | 京东方科技集团股份有限公司 | Display device, array substrate and preparation method thereof |
-
2012
- 2012-09-05 CN CN201220451519.8U patent/CN202735641U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102830557A (en) * | 2012-09-05 | 2012-12-19 | 京东方科技集团股份有限公司 | Array substrate and display device |
| CN103454817A (en) * | 2013-08-26 | 2013-12-18 | 京东方科技集团股份有限公司 | Display device, array substrate and preparation method thereof |
| WO2015027651A1 (en) * | 2013-08-26 | 2015-03-05 | 京东方科技集团股份有限公司 | Array substrate, preparation method therefor, and display apparatus |
| CN103454817B (en) * | 2013-08-26 | 2017-08-25 | 京东方科技集团股份有限公司 | Array base palte and preparation method thereof, display device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |