CN101738802B - Liquid crystal display panel and liquid crystal display device - Google Patents
Liquid crystal display panel and liquid crystal display device Download PDFInfo
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- CN101738802B CN101738802B CN2009102168063A CN200910216806A CN101738802B CN 101738802 B CN101738802 B CN 101738802B CN 2009102168063 A CN2009102168063 A CN 2009102168063A CN 200910216806 A CN200910216806 A CN 200910216806A CN 101738802 B CN101738802 B CN 101738802B
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Abstract
The invention provides a liquid crystal display panel and a liquid crystal display device, comprising a first substrate, a second substrate and a liquid crystal layer, wherein the first substrate and the second substrate are arranged opposite to each other, and the liquid crystal layer is clamped between two substrates, the first substrate comprises a plurality of pixel regions defined by a plurality of scanning lines and a plurality of data lines, and the pixel regions at least comprise a first sub-pixel electrode and a second sub-pixel electrode, a first film transistor and a second film transistor. The first sub-pixel electrode and the second sub-pixel electrode are electrically isolated from each other and the polarities of the first sub-pixel electrode and the second sub-pixel electrode are opposite when the liquid crystal display panel operates; the first sub-pixel electrode and the second sub-pixel electrode are nested with each other, wherein the first sub-pixel electrode is provided with at least one nesting region extending into the second sub-pixel electrode, and the second sub-pixel electrode is provided with at least one nesting region extending into the first sub-pixel electrode. The liquid crystal display panel saves photoetching process of a projection structure and a gap in the process of manufacturing a color filter substrate, simplifies the process, reduces the cost and improves the contrast ratio at the same time.
Description
Technical field
The present invention relates to tft liquid crystal and show (Thin Film Transistor Liquid Crystal Display; TFT-LCD) field; Be particularly related to a kind of multiregional vertical align (Vertical Alignment, VA) formula display panels and liquid crystal indicator thereof.
Background technology
LCD (LCD) is as a kind of flat-panel monitor, have clear picture accurately, plurality of advantages such as thin thickness, in light weight, radiationless, low energy consumption and WV be low, be applied in the every field widely at present.Usually; LCD has two substrates that contain electrode; And be arranged on the liquid crystal layer between the two substrates; The electric field intensity that is applied to this liquid crystal layer through the control of the electrode on the two substrates is controlled the deflection of liquid crystal molecule, and then adjusts the transmissivity of incident light, to realize the bright and dark control of display pixel.
Yet; LCD self also is faced with some has technical matters to be solved; Wide viewing angle (Wide Viewing Angle) problem for example; Also promptly, the user watches the image in the LCD in the dead ahead of screen with oblique two kinds of different visual angles, the place ahead, and image gray-scale level that it is seen and brightness are also inequality; Usually the brightness of image that the brightness of image of seeing in the dead ahead can be seen greater than oblique the place ahead, this species diversity will influence the viewing effect of user in oblique the place ahead (promptly having position with great visual angle).
At present, developed the problem that multiple technologies solve above-mentioned wide viewing angle in the industry.For example; Adopt dielectric anisotropy to replace traditional liquid crystal material for negative negative type liquid crystal material; (display panels of this structure is not when applying voltage for Vertical Alignment, liquid crystal layer VA) between the two substrates of display panels, to constitute vertical orientation; Liquid crystal molecule is promptly arranged with the mode perpendicular to substrate, so good contrast can be provided.
See also Fig. 1 and shown in Figure 2, Fig. 1 is a kind of existing multiregional vertical align (Multi-Domain Vertical Alignment, MVA) dot structure synoptic diagram of formula display panels; Fig. 2 is the sectional view along A-A ' line among Fig. 1; By Fig. 2 can illustrate display panels mainly comprise thin-film transistor array base-plate in lower floor, at the colored filter substrate 80 on upper strata and be sandwiched in the liquid crystal molecule 70 between the two; Wherein, has public electrode 81 on the colored filter substrate.Like Fig. 1; Adjacent two sweep traces 10 are pixel region with the zone that adjacent two data lines 20 are intersected; Pixel electrode shown in Figure 1 is divided into pixel electrode 30,40 again two times; This type of multiregional vertical align formula display panels is usually in disposing gap (slit) 60 on the thin-film transistor array base-plate and on colored filter substrate 80, disposing protrusion (bump) 50; Thereby the tilt angle that makes liquid crystal molecule 70 when not applying voltage, have to tilt towards different directions is to control the vergence direction that applies the liquid crystal molecule behind the voltage efficiently and effectively, after applying voltage; Liquid crystal layer promptly may be partitioned into a plurality of little territories of liquid crystal that have different vergence directions respectively, with the viewing angle characteristic under the GTG show state of the different viewing angles of effective improvement.Yet, protrusion 50 is set on colored filter substrate 80 can causes that generally light leak makes the contrast of display panels descend, also its need on colored filter substrate, increase by one photoetching process and make the processing procedure complicacy, cost is higher.
Summary of the invention
The present invention is directed to the above problem that exists in the prior art and proposed a kind of display panels; It comprises: first substrate that is oppositely arranged and second substrate; And be sandwiched in the liquid crystal layer between said first substrate and second substrate, wherein, said first substrate comprises:
The multi-strip scanning line and with many data lines of said multi-strip scanning line cross arrangement;
Said multi-strip scanning line and many a plurality of pixel regions that data line limits, each pixel region is intersected to form by adjacent two sweep traces and adjacent two data lines each other, and wherein, said pixel region comprises at least:
First pixel electrode and second pixel electrode;
The first film transistor and second thin film transistor (TFT);
Said the first film transistor drain electrically connects said first pixel electrode, and the drain electrode of said second thin film transistor (TFT) electrically connects said second pixel electrode; Has the gap that in pixel region, is 45 ° and/or 135 ° arrangements between said first pixel electrode and said second pixel electrode; Said first pixel electrode and the said second pixel electrode electrical isolation and nested against one another; Wherein, Said first pixel electrode has at least one nested region that extends in said second pixel electrode; Said second pixel electrode has at least one nested region that extends in said first pixel electrode; When display panels was worked, said first pixel electrode was opposite with the said second pixel electrode polarity, formed the fringe field effect between said first pixel electrode and said second pixel electrode.
Wherein, have second metal level on the first metal layer and the said the first metal layer on said first substrate, said pixel region also comprises first MM CAP and second MM CAP;
First utmost point of said first MM CAP is formed by the first metal layer, and second utmost point of first MM CAP is formed by first pixel electrode and part second metal level through the electric connection of via hole and first pixel electrode;
First utmost point of said second MM CAP is formed by the first metal layer, and second utmost point of second MM CAP is formed by second pixel electrode and part second metal level through the electric connection of via hole and second pixel electrode.
Wherein, in said pixel region, the shape complementarity of first pixel electrode and second pixel electrode.
Wherein, said first pixel electrode and/or second pixel electrode are herring-bone form.
Wherein, the bulge-structure that makes liquid crystal molecule produce tilt angle is not set on said second substrate.
In addition, the present invention also discloses a kind of liquid crystal indicator, comprises above-mentioned arbitrary described display panels and the driving circuit that connects said display panels.
Compared with prior art; The advantage of display panels of the present invention and liquid crystal indicator thereof is: in the display panels of the present invention; The bulge-structure that makes liquid crystal molecule produce tilt angle all is not set on second substrate (for example colored filter substrate), need not to be provided with the gap in the public electrode yet, therefore help avoiding light leakage phenomena; Increase the contrast of display image; And, owing to saved photoetching process, simplify processing procedure, improve contrast when reducing cost in colored filter substrate manufacturing process relief structure and gap.
Description of drawings
Shown in accompanying drawing, above-mentioned and other purpose, characteristic and advantage of the present invention will be more clear.Reference numeral identical in whole accompanying drawings is indicated identical part.Painstakingly do not draw accompanying drawing, focus on illustrating purport of the present invention by physical size equal proportion convergent-divergent.
Fig. 1 is the structural representation of existing a kind of multiregional vertical align formula display panels;
Fig. 2 is the sectional view along A-A ' line among Fig. 1;
Fig. 3 is the structural representation of the single pixel of display panels of first embodiment of the invention;
Fig. 4 is the sectional view along B-B ' line among Fig. 3;
Fig. 5 is the display panels part-structure synoptic diagram of first embodiment of the invention;
Fig. 6 is the display panels part-structure synoptic diagram of second embodiment of the invention;
Fig. 7 is the display panels part-structure synoptic diagram of third embodiment of the invention;
Fig. 8 (a) is each visual angle contrast distribution figure of existing a kind of multiregional vertical align formula display panels;
Fig. 8 (b) is each visual angle contrast analog result distribution plan of display panels of first embodiment of the invention.
Embodiment
For make above-mentioned purpose of the present invention, feature and advantage can be more obviously understandable, does detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.
Set forth a lot of details in the following description so that make much of the present invention, implement but the present invention can also adopt other to be different from alternate manner described here, so the present invention has not received the restriction of following disclosed specific embodiment.
Secondly, the present invention combines synoptic diagram to be described in detail, when the embodiment of the invention is detailed; For ease of explanation; The sectional view of indication device structure can be disobeyed general ratio and done local the amplification, and said synoptic diagram is example, and it should not limit the scope of the present invention's protection at this.The three dimensions size that in actual fabrication, should comprise in addition, length, width and the degree of depth.
Liquid crystal indicator of the present invention comprises display panels and the driving circuit (not shown) that connects display panels.
First embodiment
Fig. 3 is extremely shown in Figure 5 to be the display panels of first embodiment of the invention.Fig. 3 is the structural representation of the single pixel of display panels of first embodiment, and Fig. 4 is the sectional view along B-B ' line among Fig. 3, and Fig. 5 is the display panels part-structure synoptic diagram of first embodiment of the invention.For outstanding inventive point of the present invention, only show single pixel region among Fig. 3, in fact should comprise the array of a plurality of pixel regions as shown in Figure 5.
Display panels in the present embodiment is a kind of novel multiregional vertical align formula display panels; It comprises: first substrate 10, and second substrate 20 that is oppositely arranged of this first substrate 10 and be sandwiched in first substrate 10 and second substrate 20 between liquid crystal layer 30; Wherein, First substrate 10 for example is a thin-film transistor array base-plate, and second substrate 20 for example is a colored filter substrate.The surface away from liquid crystal layer 30 of first substrate 10 and second substrate 20 is provided with the linear polarizer (not shown).
Thin-film transistor array base-plate comprises: be arranged on multi-strip scanning line 100 on this thin-film transistor array base-plate, with many data lines 200 of sweep trace 100 cross arrangements and multi-strip scanning line 100 and many pixel regions 300 that data line 200 is limited.Fig. 3 only illustrates single pixel region 300 and near two sweep traces 100 and two data lines 200 thereof; In the present embodiment; Each pixel region is intersected to form by adjacent two sweep traces and adjacent two data lines each other; The rectangular area that dotted line limited among Fig. 3 is (single) pixel region 300, and a plurality of so pixel region 300 periodic arrangement promptly constitute pel array (with reference to shown in Figure 5).
As shown in Figure 3; Pixel region 300 comprises at least: first pixel electrode 301 and second pixel electrode 302; And the first film transistor 303 and second thin film transistor (TFT) 304; The drain electrode of the first film transistor 303 electrically connects first pixel electrode 301; The drain electrode of second thin film transistor (TFT) 304 electrically connects second pixel electrode, 302, the first pixel electrodes 301 and second pixel electrode, 302 electrical isolation and nested against one another, wherein; First pixel electrode 301 has at least one nested region 3011, the second pixel electrodes 302 that extend in second pixel electrode 302 and has at least one nested region 3021 that extends in first pixel electrode 301.When display panels was worked, first pixel electrode 301 was opposite with second pixel electrode, 302 polarity, thereby between first pixel electrode 301 and second pixel electrode 302, formed stronger fringe field.
With reference to figure 3 and Fig. 4; In pixel region 300; The shape complementarity of first pixel electrode 301 and second pixel electrode 302 has gap 309 between them, to realize electrical isolation each other; First pixel electrode 301 and second pixel electrode 302 electrical isolation and they each other electrically connect with thin film transistors with different respectively; Under the state of display panels work, has antipole property, among Fig. 3, when first pixel electrode 301 is that positive polarity, second pixel electrode 302 are during for negative polarity; Just form transverse edge electric field E1 as shown in Figure 4 along the gap 309 between first pixel electrode 301 and second pixel electrode 302; Simultaneously, form the vertical electric field E2 that is basically perpendicular to orientation substrate between the public electrode 21 on first pixel electrode 301 and second substrate 20, form between the public electrode 21 on second pixel electrode 302 and second substrate 20 and be basically perpendicular to orientation substrate electric field E3; Wherein electric field E2 and electric field E3's is in the opposite direction; Therefore, near the liquid crystal molecule 30 the gap 309 between first pixel electrode 301 and second pixel electrode 302 all receives the acting in conjunction of transverse electric field E1 and vertical electric field E2 or E3; Because of the liquid crystal molecule 30 that adopts is a negative type liquid crystal, so the present invention can be so that liquid crystal molecule 30 has to perpendicular to the trend of being toppled over by the direction of the total electric field of transverse electric field E1 and vertical electric field E2 or E3.
Therefore;, can realize the quick response of liquid crystal molecule, and need not on colored filter substrate, to be provided with the protrusion structure the acting in conjunction of liquid crystal molecule at transverse electric field and vertical electric field; Can improve the LCD contrast, can also simplify processing procedure simultaneously, reduce cost.
In the present embodiment, have a sweep trace 100 between the adjacent two row pixel regions 300, have two data lines 200 between the adjacent two row pixel regions 300, can be described as the 2D1G structure.For example, have sweep trace G2 between the first row pixel region 300 and the second row pixel region 300, have data line D2 and data line D3 between the first row pixel region 300 and the secondary series pixel region 300.
In the present embodiment, the grid of the first film transistor 303 and second thin film transistor (TFT) 304 is electrically connected to different sweep traces respectively, by the unlatching of the corresponding thin film transistor (TFT) that connects of the sweep signal that transmits on sweep trace control or close; The source electrode of the first film transistor 303 and second thin film transistor (TFT) 304 is electrically connected to different data lines respectively, so that the signal on the data line that when it is opened, correspondence is connected is sent on the corresponding sub-pixel.For example; Pixel region 300 to be positioned at first row, first row is an example, and the grid of the first film transistor 303 electrically connects sweep trace G2, and source electrode electrically connects data line D1; Drain electrode electrically connects first pixel electrode 301; And the grid of second thin film transistor (TFT) 304 electrically connects sweep trace G1, and source electrode electrically connects data line D2, and drain electrode electrically connects second pixel electrode 302.
In the present embodiment, the odd data line in the data line 200 connects first pixel electrode 301 in the same row pixel region 300, and the even data line connects second pixel electrode 302 in the same row pixel region 300.Single scan line in the sweep trace 100 connects first pixel electrode 301 of the odd-numbered line in the adjacent two row pixel regions 300 and second pixel electrode 302 of even number line.
The pixel region 300 that surrounds with row inversion driving and adjacent two data line D1, D2 and adjacent two sweep trace G1, G2 below is that example is carried out the labor explanation to the embodiment of the invention.
In same frame, adjacent two data line D1, D2 supply with the voltage of opposed polarity respectively, and for example, the voltage of data line D1 supply is positive polarity, and the voltage of data line D2 supply is negative polarity.When the scanning pulse signal on the sweep trace G1 is high level; Second thin film transistor (TFT) 304 that electrically connects with sweep trace G1 is opened; Reverse voltage on the data line D2 applies on second pixel electrode 302 through the source electrode and the drain electrode of second thin film transistor (TFT) 304, is used for to 302 chargings of second pixel electrode, therefore; The pixel voltage that second pixel electrode 302 has negative polarity; Afterwards, the scanning pulse signal on the sweep trace G1 becomes low level from high level, and the pixel voltage that this second pixel electrode 302 is kept this negative polarity comes interim up to next frame; At this moment; Scanning pulse signal on the sweep trace G2 transfers high level to by low level, and the first film transistor 303 that electrically connects with sweep trace G2 is opened, and the positive polarity voltage on the data line D1 arrives on first pixel electrode 301 with drain electrode through the source electrode of the first film transistor 303; Be used for to 301 chargings of first pixel electrode; Therefore, the pixel voltage that first pixel electrode 301 has positive polarity, afterwards; Scanning pulse signal on the sweep trace G2 becomes low level from high level, and the pixel voltage that this first pixel electrode 301 is kept this positive polarity comes interim up to next frame.Scan all bar sweep traces so, from top to bottom successively.Therefore, in same frame, first pixel electrode 301 and second pixel electrode 302 have antipole property respectively.
When next frame; The polarity of voltage counter-rotating that data line D1, D2 supply with; Be that data line D1 is transfused to reverse voltage, data line D2 is transfused to positive polarity voltage, therefore; First pixel electrode 301 is applied in the pixel voltage of negative polarity, and second pixel electrode 302 is applied in the pixel voltage of positive polarity.Likewise, can in pixel region 300, form a plurality of territories toppling over so that be in the liquid crystal molecule at 309 places, gap of 302 of first pixel electrode 301 and second pixel electrodes towards the direction of extending perpendicular to gap 309.
Therefore, the liquid crystal molecule in each pixel region 300 tilts and the formation multiple domain towards a plurality of directions respectively.When pixel region 300 has bigger area; Can come further each pixel electrode of segmentation through the quantity that increases by first pixel electrode 301 and the mutually nested zone of second pixel electrode 302 respectively, so that the liquid crystal molecule in each zone in first pixel electrode 301 and second pixel electrode 302 can both be by control well.So, adopt the display panels of this dot structure to have good wide viewing angle characteristic.And; Because first pixel electrode 301 has antipole property with second pixel electrode 302 nested with it; Therefore, 309 places, gap between first pixel electrode 301 and second pixel electrode 302 nested with it form fringe field, and this fringe field makes that near the liquid crystal molecules the gap 309 can be fast towards toppling over perpendicular to the direction of gap 309 extensions; So, adopt the display panels of this dot structure to have the liquid crystal molecule response time fast.Further; The display panels that adopts this dot structure need be not that the bulge-structure that makes liquid crystal molecule produce tilt angle is set on the colored filter substrate at second substrate 20, therefore, and when display panels is not worked promptly not making alive; Liquid crystal molecule can be good at the state of being kept upright; Avoid the light leakage phenomena under the dark attitude of display panels, so, adopt the display panels of this dot structure to have high contrast.
Preferably, gap 309 is 45 ° and/or 135 ° of meander-like arrangements, thereby is complementary with corresponding linear polarizer.All gaps 309 are 45 ° and/or 135 ° of angles and arrange in the pixel region 300, and like this, gap 309 becomes 45 degree or 135 to spend angles with polaroid absorption axes on this substrate; The setting that is orthogonal of the polaroid of two substrates; Lqiuid crystal molecule tipping direction also will with 45 ° and/or 135 ° be main, therefore when the linear polarizer plate that adopts with traditional MVA display panels same structure, can obtain penetrance preferably; And need not to use circularly polarizing plate, make cost reduce greatly.
In the present embodiment, first pixel electrode 301 and second pixel electrode 302 are not limited to be herringbone form, also can be other shapes, perhaps are arranged in the pixel region with other arrangement modes.And the quantity of pixel electrode also is not limited to two, also can be for more than two.
Has the second metal level (not shown) on the first metal layer (not shown) and the first metal layer on first substrate 10; The first metal layer for example is used to form the grid of multi-strip scanning line 100 and first, second thin film transistor (TFT) 303,304 etc., and second metal level for example is used to form the source-drain electrode of many data lines 200 and first, second thin film transistor (TFT) 303,304 etc.
In addition, as shown in Figure 3, pixel region 300 also comprises first MM CAP 305 and second MM CAP 306; First utmost point of first MM CAP 305 is formed by the first metal layer, and second utmost point of first MM CAP 305 forms by first pixel electrode 301 with through part second metal level of via hole with the electric connections of first pixel electrode 301.
Same, first utmost point of second MM CAP 306 is formed by the first metal layer, and second utmost point of second MM CAP 306 forms by second pixel electrode 302 with through part second metal level of via hole with 302 electric connections of second pixel electrode.Adopt this structure, bigger MM CAP can be provided, help improving the display frame quality of display panels.
Fig. 8 (a) is each visual angle contrast distribution figure of existing a kind of multiregional vertical align formula display panels; The maximum-contrast of existing multiregional vertical align formula display panels is about 2000: 1; When the visual angle is 40 ° up and down; Its contrast is about 100: 1; When the visual angle is 80 ° up and down, upper left among Fig. 8 (a), a left side is following, upper right and the contrast of lower right part only about 10: 1.Fig. 8 (b) is each visual angle contrast analog result distribution plan of display panels of first embodiment of the invention.Its simulated conditions are identical with Fig. 8 (a); Analog temperature is 25 ℃; The CCFL that is backlight, liquid crystal molecule Δ n are 0.093 (corresponding optical wavelength is 546nm), the thick 3.8um that is of display panels liquid crystal cell; The black attitude voltage of pixel electrode and public electrode is 0.5V in the display panels, and white attitude voltage is 6.5V.The maximum-contrast of display panels of the present invention can reach 5000: 1, and when the visual angle was 40 ° up and down, its contrast was about 500: 1, and when the visual angle was 80 ° up and down, its contrast was also about 100: 1.Can find out that display panels of the present invention has wideer angular field of view, higher contrast.
Adopt the display panels of present embodiment; When on data line, applying row inversion driving signal; The polarity of two subpixels is opposite in the same pixel; And neighbor is because mutually nested the arranging of pixel electrode of its each subpixels can realize that the polarity between pixel is arranged the mode of a counter-rotating that appears.And this type of drive can have both the good picture display quality of a counter-rotating and the advantages such as low power consumption of row inversion driving.
In the present embodiment display panels; The bulge-structure that makes liquid crystal molecule produce tilt angle need not be set on second substrate (for example colored filter substrate); Therefore help avoiding light leakage phenomena, increase the contrast of display image, and; Owing to saved photoetching process, therefore can simplify processing procedure, improve contrast when reducing cost in colored filter substrate manufacturing process relief structure.Liquid crystal indicator with present embodiment display panels has above advantage equally, repeats no more at this.
Second embodiment
Fig. 6 is the part-structure synoptic diagram of the display panels of second embodiment of the invention.
Similarly; The pixel region of the display panels of second embodiment of the invention also has first pixel electrode 301 and second pixel electrode 302 that is herring-bone form respectively; And first pixel electrode 301 and second pixel electrode 302 have structure nested against one another; Wherein, First pixel electrode 301 has at least one nested region 3011, the second pixel electrodes 302 that extend in second pixel electrode 302 and has at least one nested region 3021 that extends in first pixel electrode 301.In addition; When display panels is worked; Because first pixel electrode 301 has antipole property with second pixel electrode 302 nested with it, therefore, the gap location between first pixel electrode 301 and second pixel electrode 302 nested with it forms fringe field similarly.
The part that is basically the same as those in the first embodiment second embodiment repeats no more at this; Different is with the display panels of first embodiment for it; In the display panels of second embodiment; Odd data line in the data line 200 connects first pixel electrode 301 of the odd-numbered line in the same row pixel region 300 and second pixel electrode 302 of even number line, and the even data line connects second pixel electrode 302 of the odd-numbered line in the same row pixel region 300 and first pixel electrode 301 of even number line.Odd-numbered scan lines in the sweep trace 200 connects second pixel electrode 302 in the adjacent two row pixel regions 300, and the even-line interlace line in the sweep trace 100 connects first pixel electrode 301 in the adjacent two row pixel regions 300.
Adopt this dot structure design, when on data line, applying row inversion driving signal, the polarity between pixel is arranged the mode of a counter-rotating that appears.And this type of drive can have both the good picture display quality of a counter-rotating and the advantages such as low power consumption of row inversion driving.
The 3rd embodiment
Fig. 7 is the part-structure synoptic diagram of the display panels of third embodiment of the invention.
Similarly; The pixel region of the display panels of third embodiment of the invention also has first pixel electrode 301 and second pixel electrode 302 that is herring-bone form respectively; And first pixel electrode 301 and second pixel electrode 302 have structure nested against one another; Wherein, First pixel electrode 301 has at least one nested region 3011, the second pixel electrodes 302 that extend in second pixel electrode 302 and has at least one nested region 3021 that extends in first pixel electrode 301.In addition; When display panels is worked; Because first pixel electrode 301 has antipole property with second pixel electrode 302 nested with it, therefore, the gap location between first pixel electrode 301 and second pixel electrode 302 nested with it forms fringe field similarly.
The something in common of the 3rd embodiment and first, second embodiment repeats no more at this; Different is with the display panels of first, second embodiment for it; In the display panels of the 3rd embodiment; Have two sweep traces between the adjacent two row pixel regions 300, have a data line 200 between the adjacent two row pixel regions 300, can be called the 1D2G structure.For example, have sweep trace G2 and sweep trace G3 between the first row pixel region 300 and the second row pixel region 300, have data line D2 between the first row pixel region 300 and the secondary series pixel region 300.
In the present embodiment; Odd data line in the data line 200 connects first pixel electrode 301 of the odd-numbered line in the same row pixel region 300 and second pixel electrode 302 of even number line, and the even data line connects second pixel electrode 302 of the odd-numbered line in the same row pixel region 300 and first pixel electrode 301 of even number line.Each bar in two sweep traces between the adjacent two row pixel regions connects all first pixel electrode 301 or all second pixel electrodes 302 with delegation; With all first pixel electrodes 301 with delegation of a connection in two sweep traces of delegation's pixel region, another connection is with all second pixel electrodes 302 of delegation.
Adopt this dot structure design, when on data line, applying row inversion driving signal, the polarity between pixel is arranged the mode of a counter-rotating that appears.And this type of drive can have both the good picture display quality of a counter-rotating and the advantages such as low power consumption of row inversion driving.
More than all embodiment disclose the place, diagonal angle that the first film transistor and second thin film transistor (TFT) are arranged on pixel region; Yet; The present invention is not limited to this, and the present invention can be equally applicable to the place, the same side that the first film transistor and second thin film transistor (TFT) are arranged on pixel region.
Particularly; When the first film transistor in the pixel region and second thin film transistor (TFT) are positioned at the same side of data line; Odd-numbered line odd column pixel region is identical with the connected mode of even number line even column pixel region: its first pixel electrode links to each other with odd-numbered scan lines in the sweep trace, and its second pixel electrode links to each other with the even-line interlace line, perhaps; Its first pixel electrode links to each other with the even-line interlace line, and its second pixel electrode links to each other with odd-numbered scan lines; Its first pixel electrode links to each other with a data line together with its second pixel electrode.Odd-numbered line even column pixel region is identical with even number line odd column pixel region connected mode: its first pixel electrode links to each other with odd-numbered scan lines in the sweep trace; Its second pixel electrode links to each other with the even-line interlace line; Perhaps; Its first pixel electrode links to each other with the even-line interlace line, and its second pixel electrode links to each other with odd-numbered scan lines; Its first pixel electrode links to each other with another data line together with second pixel electrode.
When the first film transistor in the pixel region and second thin film transistor (TFT) are positioned at the same side of sweep trace; Odd-numbered line odd column pixel region is identical with the connected mode of even number line even column pixel region: its first pixel electrode links to each other with odd data line in the data line; Its second pixel electrode links to each other with the even data line; Perhaps, its first pixel electrode links to each other with even data line in the data line, and its second pixel electrode links to each other with the odd data line; Its first pixel electrode and second pixel electrode with sweep trace in odd-numbered scan lines link to each other.Odd-numbered line odd column pixel region is identical with the connected mode of even number line even column pixel region: its first pixel electrode links to each other with odd data line in the data line; Its second pixel electrode links to each other with the even data line; Perhaps; Its first pixel electrode links to each other with even data line in the data line, and its second pixel electrode links to each other with the odd data line; Its first pixel electrode and second pixel electrode with sweep trace in the even-line interlace line link to each other.
Work as liquid crystal molecule in the display panels of the present invention and receive electric field effects; Can in pixel region, form a plurality of territories respectively towards toppling over so that be in the liquid crystal molecule of the gap location between each pixel electrode perpendicular to the direction of gap extension; Thereby need not on colored filter substrate, to be provided with the protrusion structure, thereby can simplify processing procedure, improve the display panels contrast when reducing cost.
Though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention.Each thin film transistor (TFT) in the pixel region of the present invention and the connected mode of sweep trace and data line are not limited in the situation in the foregoing description; Also other connected modes can be arranged; Any those of ordinary skill in the art; Do not breaking away under the technical scheme scope situation of the present invention, all the method for above-mentioned announcement capable of using and technology contents are made many possible changes and modification to technical scheme of the present invention, or are revised as the equivalent embodiment of equivalent variations.Therefore, every content that does not break away from technical scheme of the present invention, all still belongs in the scope of technical scheme protection of the present invention any simple modification, equivalent variations and modification that above embodiment did according to technical spirit of the present invention.
Claims (6)
1. a display panels is characterized in that, comprising: first substrate that is oppositely arranged and second substrate, and be sandwiched in the liquid crystal layer between said first substrate and second substrate, wherein, said first substrate comprises:
The multi-strip scanning line and with many data lines of said multi-strip scanning line cross arrangement;
Said multi-strip scanning line and many a plurality of pixel regions that data line limits, each pixel region is intersected to form by adjacent two sweep traces and adjacent two data lines each other, and wherein, said pixel region comprises at least:
First pixel electrode and second pixel electrode;
The first film transistor and second thin film transistor (TFT);
Said the first film transistor drain electrically connects said first pixel electrode, and the drain electrode of said second thin film transistor (TFT) electrically connects said second pixel electrode; Has the gap that in pixel region, is 45 ° and/or 135 ° arrangements between said first pixel electrode and said second pixel electrode; Said first pixel electrode and the said second pixel electrode electrical isolation and nested against one another; Wherein, Said first pixel electrode has at least one nested region that extends in said second pixel electrode; Said second pixel electrode has at least one nested region that extends in said first pixel electrode; When display panels was worked, said first pixel electrode was opposite with the said second pixel electrode polarity, thereby between said first pixel electrode and said second pixel electrode, forms fringe field.
2. display panels as claimed in claim 1 is characterized in that, has second metal level on the first metal layer and the said the first metal layer on said first substrate, and said pixel region also comprises first MM CAP and second MM CAP;
First utmost point of said first MM CAP is formed by the first metal layer, and second utmost point of first MM CAP is formed by first pixel electrode and part second metal level through the electric connection of via hole and first pixel electrode;
First utmost point of said second MM CAP is formed by the first metal layer, and second utmost point of second MM CAP is formed by second pixel electrode and part second metal level through the electric connection of via hole and second pixel electrode.
3. display panels as claimed in claim 1 is characterized in that, in said pixel region, and the shape complementarity of first pixel electrode and second pixel electrode.
4. display panels as claimed in claim 1 is characterized in that, said first pixel electrode and/or second pixel electrode are herring-bone form.
5. display panels as claimed in claim 1 is characterized in that, the bulge-structure that makes liquid crystal molecule produce tilt angle is not set on said second substrate.
6. liquid crystal indicator is characterized in that: it comprises like each described display panels of claim 1-5 and the driving circuit that connects said display panels.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102168063A CN101738802B (en) | 2009-12-31 | 2009-12-31 | Liquid crystal display panel and liquid crystal display device |
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| CN105355181A (en) * | 2015-12-03 | 2016-02-24 | 深圳市华星光电技术有限公司 | Driving method of liquid crystal display panel and liquid crystal display panel |
| CN107589602A (en) * | 2017-10-17 | 2018-01-16 | 深圳市华星光电半导体显示技术有限公司 | A kind of liquid crystal display panel with Novel pixel design |
| CN208156379U (en) | 2018-02-26 | 2018-11-27 | 惠科股份有限公司 | A kind of dot structure and array substrate |
| CN111025790A (en) | 2019-12-26 | 2020-04-17 | Tcl华星光电技术有限公司 | Pixel electrode and display panel |
| CN113219745B (en) * | 2021-04-20 | 2022-07-05 | 北海惠科光电技术有限公司 | Display panel, display device, and driving method of display panel |
| CN113219743B (en) * | 2021-04-20 | 2022-07-01 | 北海惠科光电技术有限公司 | Display panel, display device, and driving method of display panel |
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| CN101281310A (en) * | 2007-04-02 | 2008-10-08 | 奇美电子股份有限公司 | Crystal display device and driving method thereof |
| CN101285977A (en) * | 2008-05-30 | 2008-10-15 | 昆山龙腾光电有限公司 | LCD device and its array substrate |
| CN101937155A (en) * | 2009-07-01 | 2011-01-05 | 昆山龙腾光电有限公司 | Liquid crystal display panel and liquid crystal display |
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| CN101281310A (en) * | 2007-04-02 | 2008-10-08 | 奇美电子股份有限公司 | Crystal display device and driving method thereof |
| CN101285977A (en) * | 2008-05-30 | 2008-10-15 | 昆山龙腾光电有限公司 | LCD device and its array substrate |
| CN101937155A (en) * | 2009-07-01 | 2011-01-05 | 昆山龙腾光电有限公司 | Liquid crystal display panel and liquid crystal display |
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