CN100587576C - Liquid crystal display panel and pixel structure thereof - Google Patents
Liquid crystal display panel and pixel structure thereof Download PDFInfo
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- CN100587576C CN100587576C CN200810100732A CN200810100732A CN100587576C CN 100587576 C CN100587576 C CN 100587576C CN 200810100732 A CN200810100732 A CN 200810100732A CN 200810100732 A CN200810100732 A CN 200810100732A CN 100587576 C CN100587576 C CN 100587576C
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Abstract
The present invention provides a liquid crystal display panel and its pixel structure, the pixel structure includes a substrate, including a plurality of pixel areas, each pixel region includes a bright area and a dark area, each dark area includes a first coupling capacitor area and a second coupling capacitor area; a plurality of switch elements, mounted in each pixel area respectively; a plurality of pixel electrode patterns, mounted in each pixel area, and each pixel electrode pattern includes a first pixel electrode which is mounted in the bright area, and a second pixel electrode which is mounted in the dark area, the first pixel electrode is connected with a drain electrical property of the switch element; a plurality of first coupling capacitances, mounted in each first coupling capacitor area respectively; and a plurality of second coupling capacitances, mounted in each second coupling capacitance areas respectively, and each first coupling capacitance is located in each coupling capacitance of the same dark area and connected in parallel mode.
Description
Technical field
The present invention is about a kind of display panels and dot structure thereof, refers to especially a kind ofly have the parallel coupled capacitor design and can improve colour cast (color washout) problem and improve the display panels and the dot structure thereof of aperture opening ratio.
Background technology
LCD is owing to have that external form is frivolous, power consumption is few and characteristic such as radiationless pollution, so be widely used in notebook (notebook), personal computer displays and personal digital assistant (personal digital assistant, PDA) etc. on the information products, and replace the conventional cathode ray tube TV gradually, become the main flow of domestic TV commodity.
Compared to the conventional cathode ray tube display, LCD has the broad inadequately restriction in visual angle, therefore the development of LCD in recent years constantly develops towards the direction of wide viewing angle technology, for example the maturation of multiregional vertical align technology (MVA) has made the visual angle of LCD significantly promote.Yet the visual angle problem of only managing LCD is improved, the problem of but deriving and making new advances, that is when direction is watched the picture of liquid crystal visual organ with great visual angle, have the problem that color is white partially or gamma curve is offset, claim that generally this phenomenon is a colour cast.Therefore color offset phenomenon is that present wide-angle liquid crystal display developmental limits greatly, how to improve the colour cast problem under the situation that does not influence aperture opening ratio, for LCD in developmental important topic.
Summary of the invention
One of purpose of the present invention is to provide a kind of display panels and dot structure thereof, with the colour cast problem of solution LCD when watching with great visual angle, and increases aperture opening ratio.
For reaching above-mentioned purpose, the invention provides a kind of dot structure.Above-mentioned dot structure comprises:
One substrate comprises a plurality of pixel regions, and respectively this pixel region comprises a clear zone and a dark space, and respectively this dark space comprises one first coupling capacitance district and one second coupling capacitance district;
A plurality of on-off elements are arranged at respectively respectively within this pixel region;
A plurality of pixel electrode pattern, be arranged at respectively respectively within this pixel region, and respectively this pixel electrode pattern comprises that one first pixel electrode is located within this clear zone, and one second pixel electrode be located within this dark space, wherein respectively a drain electrode of this first pixel electrode and this on-off element respectively electrically connects;
A plurality of first coupling capacitances are arranged at respectively respectively within this first coupling capacitance district; And
A plurality of second coupling capacitances be arranged at respectively respectively within this second coupling capacitance district, and respectively this first coupling capacitance are connected with parallel way with respectively this second coupling capacitance that is positioned at same dark space.
For reaching above-mentioned purpose, the present invention provides a kind of dot structure in addition.Above-mentioned dot structure is formed on the pixel region of a substrate, and this pixel region comprises a clear zone and a dark space, and respectively comprises a LCD alignment zone respectively in this clear zone and this dark space, and this dot structure comprises:
One on-off element is arranged within this pixel region;
One first pixel electrode is arranged in this clear zone, and is electrically connected to this on-off element;
One coupling electrode is arranged in this dark space, is electrically connected to this on-off element, and this coupling electrode has one first coupling electrode portion and one second coupling electrode portion, and this second coupling electrode portion is corresponding with this LCD alignment zone of this dark space;
One second pixel electrode is arranged in this dark space, and this second pixel electrode is followed this first coupling electrode portion and this second coupling electrode portion to be coupled respectively and formed one first coupling capacitance and one second coupling capacitance.
For reaching above-mentioned purpose, the present invention provides a kind of display panels again.Above-mentioned display panels has a plurality of pixel regions, and respectively this pixel region comprises a clear zone and a dark space, and each comprises a LCD alignment zone respectively in this clear zone and this dark space, and this display panels comprises:
One first substrate has a plurality of dot structures, is arranged at this corresponding pixel region respectively, and respectively this dot structure comprises:
One on-off element is arranged at respectively within this pixel region;
One first pixel electrode is arranged in this clear zone, and is electrically connected to this on-off element;
One coupling electrode is arranged in this dark space, is electrically connected to this on-off element, and this coupling electrode has one first coupling electrode portion and one second coupling electrode portion, and this second coupling electrode portion is corresponding with this LCD alignment zone of this dark space;
One second pixel electrode is arranged in this dark space, and this second pixel electrode is followed this first coupling electrode portion and this second coupling electrode portion to be coupled respectively and formed one first coupling capacitance and one second coupling capacitance;
One second substrate, with this first substrate subtend configuration, respectively this LCD alignment zone of this second substrate is provided with an alignment structure of liquid crystal; And
One liquid crystal layer is arranged between this first substrate and this second substrate.
The pixel region of display panels of the present invention comprises a clear zone and a dark space, wherein first pixel electrode in clear zone directly electrically connects with drain electrode, second pixel electrode of dark space then utilizes the coupling capacitance mode to make the voltage of second pixel electrode can effectively solve the problem of colour cast thus less than the voltage of first pixel electrode.Because the position correspondence of second coupling capacitance is positioned at the below of alignment structure of liquid crystal, therefore can not influence aperture opening ratio in addition.
Description of drawings
Fig. 1 is the circuit diagram of the embodiment of each penetrate through type liquid crystal display board of the present invention.
Fig. 2 to Fig. 4 is the synoptic diagram of the display panels of a preferred embodiment of the present invention.
Fig. 5 is the synoptic diagram of another embodiment of the present invention liquid crystal display panel pixel structure.
Fig. 6 is the synoptic diagram of further embodiment of this invention liquid crystal display panel pixel structure.
Fig. 7 is the circuit diagram of the embodiment of each semi-penetrate through and semi-reflection-type liquid crystal display board of the present invention.
Fig. 8 is the synoptic diagram of yet another embodiment of the invention liquid crystal display panel pixel structure.
Drawing reference numeral:
10 pixel regions, 12 clear zones
16 LCD alignment zones, 14 dark spaces
18 LCD alignment zone, 20 first substrates
21 contact hole 22G grids
23 semiconductor layers, 24 gate insulators
25,26 dielectric layers, 27 insulation courses
28 first contact holes, 29 bed courses
The 4th contact hole, 30 first coupling capacitance districts 31
32 second coupling capacitance district 33A, the first coupling electrode portion
34B second pixel electrode 35 transparent conductive patterns
36 ground floor metal patterns, 37 reflecting electrodes
38 first capacitance dielectric layers, 40 second layer metal patterns
42 second capacitance dielectric layers, 44 second contact holes
46 the 3rd contact holes, 50 second substrates
52 black matrix patterns, 54 chromatic filter layers
56 common electrodes, 58 alignment structure of liquid crystal
60 liquid crystal layers
Embodiment
One of principal character of display panels of the present invention comprises a clear zone and a dark space for each pixel region, wherein the drain electrode direct and on-off element of the pixel electrode in clear zone electrically connects, common electrode with upper substrate forms big potential difference (PD) to drive liquid crystal molecule by this, the pixel electrode of dark space does not then electrically connect with drain electrode, but utilizes the common electrode that two or more parallel coupled electric capacity and upper substrate are set to form a small electric potential difference to drive liquid crystal molecule.By the way, pixel region can provide a clear zone and a dark space, the colour cast problem when watching LCD with great visual angle to solve.
With reference to figure 1.Fig. 1 is the circuit diagram of the embodiment of each penetrate through type liquid crystal display board of the present invention.As shown in Figure 1, display panels comprises multi-strip scanning line SL, many data line DL, and a plurality of pixel region Pix, wherein comprises an on-off element among each pixel region Pix, for example a thin film transistor (TFT) TFT.Pixel region Pix divides into a clear zone B and a dark space D, and wherein clear zone B has one first pixel electrode, and dark space D has one second pixel electrode, and first pixel electrode and second pixel electrode all are located on the infrabasal plate.The drain electrode of thin film transistor (TFT) TFT directly is electrically connected with first pixel electrode of clear zone B, and therefore first pixel electrode constitutes one first liquid crystal capacitance Clc1 with the common electrode of being located at upper substrate in the B of clear zone, and is provided with at least one storage capacitors Cst among the B of clear zone in addition.In the D of dark space, drain on the other hand and directly be not electrically connected with second pixel electrode, form one first coupling capacitance Cc1 and one second coupling capacitance Cc2 but utilize by the extended conductive pattern of drain electrode and second pixel electrode, and the first coupling capacitance Cc1 is connected with parallel way with the second coupling capacitance Cc2, and the first coupling capacitance Cc1 in parallel and second coupling capacitance Cc2 common electrode common again and upper substrate constitutes one second liquid crystal capacitance Clc2.
Please refer to Fig. 2 to Fig. 4.Fig. 2 to Fig. 4 is the synoptic diagram of the display panels of a preferred embodiment of the present invention, wherein present embodiment is example explanation the present invention with the multi-area vertical coupling liquid crystal display panel,, application of the present invention can be the display panels of other pattern but being not limited to this, Fig. 2 is the top view of dot structure in addition, Fig. 3 is the diagrammatic cross-section of the dot structure of Fig. 2 along profile line AA ', and Fig. 4 is the diagrammatic cross-section of the dot structure of Fig. 2 along profile line BB '.Extremely shown in Figure 4 as Fig. 2, the display panels of present embodiment has a plurality of pixel regions 10 (for convenience of description, only show a pixel region among the figure), wherein each pixel region 10 comprises a clear zone 12 and a dark space 14, and each comprises a LCD alignment zone 16,18 respectively in clear zone 12 and the dark space 14.Display panels comprises one first substrate 20, first substrate 20 has a plurality of dot structures, corresponding with pixel region 10 respectively, and each dot structure comprises one scan line SL, a data line DL, an and on-off element (for example thin film transistor (TFT)), be arranged at respectively within each pixel region 10, wherein on-off element comprises a grid 22G, semi-conductor layer 23, one source pole 22S and a drain electrode 22D.Be provided with a gate insulator 24 between semiconductor layer 23 and the grid 22G and be sequentially provided with two dielectric layers 25,26, at least one insulation course (generally also being called protective seam) 27 and one alignment film (figure does not show) above the grid 22G; wherein dielectric layer 26 herein will be in hereinafter describing in detail also as the usefulness of second capacitance dielectric layer.In addition, dielectric layer 25,26 has a contact hole 21 in the position of corresponding source electrode 22S, and data line DL can directly electrically connect with the source electrode 22S of on-off element 22 by this.
Display panels comprises a plurality of pixel electrode pattern, be arranged at respectively within each pixel region 10, and each pixel electrode pattern is a for example tin indium oxide of electrically conducting transparent material, it comprises that one first pixel electrode 34A is located within the clear zone 12, and one second pixel electrode 34B be located within the dark space 14, wherein the insulation course 27 in clear zone 12 has one first contact hole 28, it is corresponding with the first contact hole 28 that dielectric layer 25,26 has one the 4th contact hole 31, and the drain electrode 22D of on-off element 22 is provided with a bed course (pad layer) 29 and drain electrode 22D electric connection.The first contact hole 28 contacts hole 31 and exposes bed course 29 with the 4th, the first pixel electrode 34A can insert the first contact hole 28 and contacts hole 31 with the 4th and contact with bed course 29 by this, the first pixel electrode 34A can electrically connect with the drain electrode 22D of on-off element 22 by bed course 29 by this, and the second pixel electrode 34B of dark space 14 does not then electrically connect with the first pixel electrode 34A.
Be provided with a conductive pattern in the dark space 14, usefulness as coupling electrode, wherein in the present embodiment, semiconductor layer 23 is made of the polysilicon material, and coupling electrode 33 is same layer material with semiconductor layer 23, but can make it have conductive characteristic by for example implanting ions, and coupling electrode be electrically connected to the drain electrode 22D of on-off element 22.In addition, dark space 14 comprises one first coupling capacitance district 30 and one second coupling capacitance district 32, wherein comprises one first coupling capacitance in the first coupling capacitance district 30, then comprises one second coupling capacitance in the second coupling capacitance district 32.Coupling electrode has one first 33A of coupling electrode portion and is arranged within the first coupling capacitance district 30, then is arranged within the second coupling capacitance district 32 with one second 33B of coupling electrode portion.In addition, dot structure comprises a plurality of ground floor metal patterns 36 (ground floor metal pattern 36 and sweep trace SL in addition, grid 22G, common line CL and bed course 29 are with layer metal), be arranged at respectively within each first coupling capacitance district 30, a plurality of first capacitance dielectric layers 38 (first capacitance dielectric layer 38 is same layer of material with gate insulator 24), be arranged at respectively between each conductive pattern (that is coupling electrode) and each the ground floor metal pattern 36, a plurality of second layer metal patterns 40 (second metal layer pattern 40 with data line DL for floor metal) be arranged at respectively respectively within first coupling capacitance district 30 with each second coupling capacitance district 32 within, and a plurality of second capacitance dielectric layers 42 (second capacitance dielectric layer 42 is same layer material with the dielectric layer 26 of grid 22G top), be arranged at respectively between each second pixel electrode 34B and each the second layer metal pattern 40.
In the first coupling capacitance district 30, dielectric layer 25 has a breach, make that second layer metal pattern 40 is able to electrically connect with ground floor metal pattern 36, while second capacitance dielectric layer 42 has one second with insulation course 27 and contacts hole 44, makes the second pixel electrode 34B be able to and 40 electric connections of second layer metal pattern.The second pixel electrode 34B, second layer metal pattern 40 and ground floor metal pattern 36 form the top electrode of first coupling capacitance, first 33A of coupling electrode portion then is the bottom electrode of first coupling capacitance, and and first capacitance dielectric layer 38 that is arranged between top electrode and the bottom electrode constitute first coupling capacitance.
On the other hand in the second coupling capacitance district 32, first capacitance dielectric layer 38 has a breach with dielectric layer 25, make second layer metal pattern 40 be able to electrically connect with second 33B of coupling electrode portion, and constitute the bottom electrode of second coupling capacitance, and second capacitance dielectric layer 42 is covered in the surface of second layer metal pattern 40, and insulation course 27 has one the 3rd contact hole 46, make the second pixel electrode 34B can be formed at the surface of second capacitance dielectric layer 42, and, constitute second coupling capacitance by this as the top electrode of second coupling capacitance.
Display panels comprises one second substrate 50 and the configuration of first substrate, 20 subtends in addition, and a liquid crystal layer 60 is arranged between first substrate 20 and second substrate 50.Second substrate 50 comprises a plurality of black matrix patterns 52 in the face of the surface of first substrate 20, lay respectively within clear zone 12 and the dark space 14, one chromatic filter layer 54, a common electrode 56 are located at surface, an alignment film (figure does not show) of black matrix pattern 52 and chromatic filter layer 54, and a plurality of alignment structure of liquid crystal 58, be arranged at the surface of alignment film and corresponding with the LCD alignment zone 18 of the LCD alignment in clear zone 12 zone 16 and dark space 14 respectively.In present embodiment, alignment structure of liquid crystal 58 uses the practice of orientation thrust (protrusion), reach the effect of multizone orientation, but application of the present invention is not limited thereto, and also can use the alignment structure of liquid crystal of other pattern, orientation slit (slit) for example.
Liquid crystal display panel pixel structure of the present invention also has other different enforcement sample attitude, please continue with reference to explanation hereinafter, wherein for the ease of comparing the difference of each embodiment, components identical is used identical label mark in each of the embodiments described below, and no longer adds to give unnecessary details.
Please refer to Fig. 5.Fig. 5 is the synoptic diagram of another embodiment of the present invention liquid crystal display panel pixel structure.As shown in Figure 5, be in the present embodiment with the embodiment difference of Fig. 2, the size of coupling electrode is less, therefore only is provided with first 33A of coupling electrode portion within the first coupling capacitance district 30, and is not provided with second 33B of coupling electrode portion within the second coupling capacitance district 32.Within each second coupling capacitance district 32, other is provided with a transparent conductive patterns 35 and replaces second 33B of coupling electrode portion, and transparent conductive patterns 35 and first 33A of coupling electrode portion electric connection.Under this situation, in the second coupling capacitance district 32, the second pixel electrode 34B still constitutes a top electrode of second coupling capacitance, and second layer metal pattern 40 then is electrical connected with transparent conductive patterns 35, and constitutes a bottom electrode of second coupling capacitance.The advantage that present embodiment utilizes transparent conductive patterns 35 to replace the practice of second 33B of coupling electrode portion is therefore can further promote the aperture opening ratio of dot structure at the state that still can not keep printing opacity with the overlapping part of second layer metal pattern 40.
Please refer to Fig. 6.Fig. 6 is the synoptic diagram of further embodiment of this invention liquid crystal display panel pixel structure.As shown in Figure 6, the design of the coupling capacitance of present embodiment is identical with the embodiment of Fig. 2, and be that with the embodiment difference of Fig. 2 the display panels at present embodiment is a semi-penetration semi-reflective (transflective) type display panels, therefore be provided with a reflecting electrode 37 in addition on the surface of the partial insulative layer 27 of each pixel region 10, wherein reflecting electrode 37 is by the high reflectance material, for example aluminium constitutes, and its surface can have little space pattern to increase dispersion effect.Because in the pixel region 10 subregion being arranged is light tight zone, for example storage capacitors district or coupling capacitance district, therefore the present invention is arranged at reflecting electrode 37 within the light tight zone, but but the environment for use light source can further increase light utilization efficiency, promote the brightness performance of display panels.What deserves to be explained is that in the present embodiment the reflecting electrode 37 and the second pixel electrode 34B electrically connect, and are the part of dark space 12.
Please refer to Fig. 7.Fig. 7 is the circuit diagram of the embodiment of each semi-penetrate through and semi-reflection-type liquid crystal display board of the present invention.As shown in Figure 7, display panels comprises multi-strip scanning line SL, many data line DL, and a plurality of pixel region Pix, wherein comprises an on-off element among each pixel region Pix, for example a thin film transistor (TFT) TFT.Pixel region Pix divides into a clear zone B and a dark space D, and wherein clear zone B has one first pixel electrode, and dark space D has one second pixel electrode.The drain electrode of thin film transistor (TFT) TFT directly is electrically connected with first pixel electrode of clear zone B, and therefore the common electrode of first pixel electrode and upper substrate constitutes one first liquid crystal capacitance Clc1 in the B of clear zone, and is provided with at least one storage capacitors Cst among the B of clear zone in addition.In the D of dark space, drain on the other hand and directly be not electrically connected with second pixel electrode, form one first coupling capacitance Cc1 and one second coupling capacitance Cc2 but utilize by the extended conductive pattern of drain electrode and second pixel electrode, and the first coupling capacitance Cc1 is connected with parallel way with the second coupling capacitance Cc2, and the first coupling capacitance Cc1 in parallel and second coupling capacitance Cc2 common electrode common again and upper substrate constitutes one second liquid crystal capacitance Clc2.Circuit compared to penetrate through type liquid crystal display board, owing to be provided with a reflecting electrode in addition among each pixel region Pix of semi-penetrate through and semi-reflection-type liquid crystal display board, be electrically connected at second pixel electrode of dark space D, so the common electrode of reflecting electrode and upper substrate also can constitute a reflective liquid crystal capacitor C lcR.
Please refer to Fig. 8.Fig. 8 is the synoptic diagram of yet another embodiment of the invention liquid crystal display panel pixel structure.As shown in Figure 8, the display panels of present embodiment also is a semi-penetrate through and semi-reflection-type liquid crystal display board, identical with the embodiment of Fig. 6, and that both differences are in the design of the coupling capacitance of present embodiment is identical with the embodiment of Fig. 4, that is is provided with transparent conductive patterns 35 in the second coupling capacitance district 32.
From the above, one of principal feature of the present invention is that the pixel region differentiation has clear zone and dark space, wherein first pixel electrode in clear zone directly electrically connects with drain electrode, second pixel electrode of dark space then utilizes the coupling capacitance mode to make the voltage of second pixel electrode can effectively solve the problem of colour cast thus less than the voltage of first pixel electrode.The voltage of second pixel electrode can utilize the size of coupling capacitance to control, and generally speaking is approximately under 0.7 times the situation of voltage of first pixel electrode at the voltage of second pixel electrode, can have the preferable colour cast effect of improving.For single pixel region, the area ratio of clear zone and dark space also has the preferable colour cast effect of improving under 35: 65 situation, but actual ratio still can be changed according to other consideration.Because coupling capacitance of the present invention comprises first coupling capacitance and second coupling capacitance that connects with parallel way, wherein, therefore can not influence aperture opening ratio in addition because the position of second coupling capacitance is positioned at the below of black matrix pattern and alignment structure of liquid crystal.Can reduce the area of first coupling capacitance under this situation, to increase aperture opening ratio, not enough electric capacity then can be provided by second coupling capacitance, and obtains identical capacitance.What deserves to be explained is that coupling capacitance of the present invention is not limited to two coupling capacitances in parallel, and the number of the increase in demand parallel coupled electric capacity of visible pixel structure Design and capacitance, and the size and shape of coupling capacitance etc. also can be changed.
The above only is preferred embodiment of the present invention, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (17)
1. a dot structure is characterized in that, described dot structure comprises:
One substrate comprises a plurality of pixel regions, and each described pixel region comprises a clear zone and a dark space, and each described dark space comprises one first coupling capacitance district and one second coupling capacitance district;
A plurality of on-off elements are arranged at respectively within each described pixel region;
A plurality of pixel electrode pattern, be arranged at respectively within each described pixel region, and each described pixel electrode pattern comprises that one first pixel electrode is located within the described clear zone, and one second pixel electrode be located within the described dark space, wherein one of each described first pixel electrode and each described on-off element drain electrode electrically connects;
A plurality of first coupling capacitances are arranged at respectively within each described first coupling capacitance district; And
A plurality of second coupling capacitances are arranged at respectively within each described second coupling capacitance district, and each described first coupling capacitance is connected with parallel way with each described second coupling capacitance that is positioned at same dark space;
A plurality of conductive patterns, respectively with the described drain electrode electric connection of each described on-off element, a plurality of ground floor metal pattern, be arranged at respectively within each described first coupling capacitance district, and a plurality of second layer metal patterns, be arranged at respectively within each described first coupling capacitance district with each described second coupling capacitance district within.
2. dot structure as claimed in claim 1, it is characterized in that, in each described first coupling capacitance district, each described second pixel electrode, each described second layer metal pattern and each described ground floor metal pattern are for being electrical connected, and constitute a top electrode of each described first coupling capacitance, and each described conductive pattern constitutes a bottom electrode of each described first coupling capacitance.
3. dot structure as claimed in claim 2 is characterized in that, described dot structure comprises a plurality of first capacitance dielectric layers in addition, is arranged at respectively between each described conductive pattern and each the described ground floor metal pattern.
4. dot structure as claimed in claim 1, it is characterized in that, in each described second coupling capacitance district, each described second pixel electrode constitutes a top electrode of each described second coupling capacitance, and each described second layer metal pattern and each described conductive pattern are electrical connected, and constitute a bottom electrode of each described second coupling capacitance.
5. dot structure as claimed in claim 4 is characterized in that, described dot structure comprises a plurality of second capacitance dielectric layers in addition, is arranged at respectively between each described second pixel electrode and each the described second layer metal pattern.
6. dot structure as claimed in claim 1 is characterized in that described dot structure comprises a plurality of transparent conductive patterns in addition, is arranged at respectively within each described second coupling capacitance district, and each described transparent conductive patterns and each described conductive pattern electric connection.
7. dot structure as claimed in claim 6, it is characterized in that, in each described second coupling capacitance district, each described second pixel electrode constitutes a top electrode of each described second coupling capacitance, and each described second layer metal pattern and each described transparent conductive patterns are electrical connected, and constitute a bottom electrode of each described second coupling capacitance.
8. dot structure as claimed in claim 5 is characterized in that, described dot structure comprises that in addition an insulation course is arranged between described these pixel electrodes and described these second capacitance dielectric layers.
9. dot structure as claimed in claim 8, it is characterized in that, described insulation course and each described second capacitance dielectric layer have at least one through hole respectively in each described first coupling capacitance district, and each described second pixel electrode electrically connects by each described through hole and each described second layer metal pattern.
10. dot structure as claimed in claim 8, it is characterized in that, described insulation course has at least one through hole in each described second coupling capacitance district, make each described second pixel electrode be formed at the surface of each described second capacitance dielectric layer by this in each described second coupling capacitance district.
11. dot structure as claimed in claim 1 is characterized in that, described dot structure comprises a plurality of reflecting electrodes in addition, electrically connects with each described pixel electrode pattern respectively.
12. dot structure as claimed in claim 1 is characterized in that, each described on-off element comprises a grid, and described these grids and described these ground floor metal patterns are with one deck metal.
13. dot structure as claimed in claim 1 is characterized in that, each described these first pixel electrode does not electrically connect with described these second pixel electrodes.
14. a dot structure is formed on the pixel region of a substrate, it is characterized in that, described pixel region comprises a clear zone and a dark space, and respectively comprises a LCD alignment zone respectively in described clear zone and the described dark space, and described dot structure comprises:
One on-off element is arranged within the described pixel region;
One first pixel electrode is arranged in the described clear zone, and is electrically connected to described on-off element;
One coupling electrode is arranged in the described dark space, is electrically connected to described on-off element, and described coupling electrode has one first coupling electrode portion and one second coupling electrode portion, and the described second coupling electrode portion is corresponding with the described LCD alignment zone of described dark space;
One second pixel electrode is arranged in the described dark space, and described second pixel electrode is followed described first coupling electrode portion and the described second coupling electrode portion to be coupled respectively and formed one first coupling capacitance and one second coupling capacitance.
15. dot structure as claimed in claim 14 is characterized in that, described first coupling capacitance is connected with parallel way with described second coupling capacitance.
16. display panels, described display panels has a plurality of pixel regions, it is characterized in that, each described pixel region comprises a clear zone and a dark space, and each comprises a LCD alignment zone respectively in described clear zone and the described dark space, and described display panels comprises:
One first substrate has a plurality of dot structures, is arranged at corresponding described pixel region respectively, and each described dot structure comprises:
One on-off element is arranged at respectively within the described pixel region;
One first pixel electrode is arranged in the described clear zone, and is electrically connected to described on-off element;
One coupling electrode is arranged in the described dark space, is electrically connected to described on-off element, and described coupling electrode has one first coupling electrode portion and one second coupling electrode portion, and the described second coupling electrode portion is corresponding with the described LCD alignment zone of described dark space;
One second pixel electrode is arranged in the described dark space, and described second pixel electrode is followed described first coupling electrode portion and the described second coupling electrode portion to be coupled respectively and formed one first coupling capacitance and one second coupling capacitance;
One second substrate, with described first substrate subtend configuration, the described LCD alignment of each of described second substrate zone is provided with an alignment structure of liquid crystal; And
One liquid crystal layer is arranged between described first substrate and described second substrate.
17. display panels as claimed in claim 16 is characterized in that, in each described pixel region, described first coupling capacitance is connected with parallel way with described second coupling capacitance.
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| TWI628497B (en) * | 2017-08-18 | 2018-07-01 | 友達光電股份有限公司 | Pixel structure |
| WO2019160841A1 (en) * | 2018-02-15 | 2019-08-22 | E Ink Corporation | Via placement for slim border electro-optic display backplanes with decreased capacitive coupling between t-wires and pixel electrodes |
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| C06 | Publication | ||
| PB01 | Publication | ||
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