CN102621730A - Liquid crystal panel - Google Patents
Liquid crystal panel Download PDFInfo
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- CN102621730A CN102621730A CN2012100924477A CN201210092447A CN102621730A CN 102621730 A CN102621730 A CN 102621730A CN 2012100924477 A CN2012100924477 A CN 2012100924477A CN 201210092447 A CN201210092447 A CN 201210092447A CN 102621730 A CN102621730 A CN 102621730A
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Abstract
The invention provides a liquid crystal panel. The liquid crystal panel comprises a first data line, a scanning line, a pixel, a first storage capacitor line and a second storage capacitor line, wherein the data line is formed on the liquid crystal panel in a first direction and provides an input voltage; the scanning line is formed on the liquid crystal panel in a second direction which is vertical to the first vertical direction; the pixel is formed at the intersection between the data line and the scanning line and comprises a first sub-pixel and a second sub-pixel; the first storage capacitor line is connected with a second end of a first storage capacitor electrically; and the second storage capacitor line is connected with a second end of a second storage capacitor electrically.
Description
Present patent application is dividing an application of following patented claim:
Application number: 200710092107.3
The applying date: on 04 02nd, 2007
Denomination of invention: liquid crystal indicator and driving method thereof
Technical field
The present invention relates to a kind of liquid crystal indicator, the pixel that particularly is involved in a kind of liquid crystal indicator is distinguished the driving method of mode and liquid crystal indicator.
Background technology
Liquid crystal indicator is one of a kind of at present common flat-panel screens; It has high resolving power, in light weight, thin thickness, and advantage such as low power consumption; Therefore, the use of liquid crystal indicator at present is more and more general, except that can be used as general calculator display organization use; Also can be used as the Touch Screen that man-machine interface is used, and also can combine with video-signal system and use as TV.
Yet,, exist the problem that some technical need further solve also, for example the problem of wide viewing angle though liquid crystal indicator is more and more universal.Hold the above, the visual angle of liquid crystal indicator is relevant with its γ characteristic, is meant the gray scale of image and the relation of brightness in this γ characteristic, and Fig. 1 shows the performance diagram of the gray scale of an existing multi-domain vertical alignment-type liquid crystal display panel to light transmittance.Please with reference to Fig. 1, curve L1 viewed light transmittance when on behalf of the front, curve L3 watch multi-domain vertical alignment-type liquid crystal display panel.Wherein, curve L1 is the ruddiness penetrance, and curve L2 is the green glow penetrance, and curve L3 is the blue light penetrance.Yet; When with the angle (oblique just 60 degree) that tilts when watching multi-domain vertical alignment-type liquid crystal display panel; Under same WV, observed light transmittance can change and be curve L4, curve L5 and curve L6 from curve L1, curve L2 and curve L 3 are drifted about respectively.
Please continue with reference to Fig. 1; Can see that from Fig. 1 in the zone of higher gray scale with low gray scale, the light transmittance of the light transmittance of curve L1 and curve L4 is close; The light transmittance of the light transmittance of curve L2 and curve L5 is close, and the light transmittance of the light transmittance of curve L3 and curve L6 is close.Yet in middle gray zone, the light transmittance of curve L1, curve L2 and curve L3 differs greatly with the light transmittance of corresponding curve L4, curve L5 and curve L6 respectively.That is to say that higher gray scale is slighter with the color shift phenomenon of low gray scale, the color shift phenomenon of middle gray is more serious.
As shown in Figure 2, the image that its dead ahead that is presented at screen and oblique the place ahead are seen is at normalizing light (normalized luminance) graph of a relation of same grayscale, and wherein dotted line is that ideal value, solid line are actual value; Say that at length under ideal state, the γ characteristic of the image of seeing in dead ahead and oblique the place ahead of screen is identical; Therefore shown in the dotted line of Fig. 1, it is 1 straight line that its normalizing light relation is a slope, yet; In fact, liquid crystal indicator has the wide inadequately problem in visual angle, so when the user watches image in the dead ahead of screen with oblique the place ahead; The γ characteristic of the image that it is seen is also inequality; That is the normalizing light of the image seen in the dead ahead of screen and oblique the place ahead of user and inequality, the normalizing light of the image that the normalizing light of the image of seeing in the dead ahead usually can be seen greater than oblique the place ahead, therefore; The picture of many kens LCD screen of watching in different angles; Its luminance difference causes the result of each blend of colors different, and its color that manifests still has a little difference, and then causes the phenomenon of colour cast.
For addressing the above problem, a kind of design is arranged in the prior art, it utilizes the conclusion of learning from Fig. 1, and promptly higher gray scale is slighter with the color shift phenomenon of the coloured light of low gray scale, further changes the circuit layout design to improve the phenomenon of colour cast.This prior art is that a pixel cell is divided into two different zones of light transmittance.The light transmittance in one zone is higher, shows the color of higher gray scale; Another regional light transmittance is lower, shows the color of low gray scale.Specifically, become the color of gray scale in,, all can watch close color no matter then the user faces or watches the multi-domain vertical alignment-type liquid crystal display panel after the improvement with the angle that tilts with the color mixture of the color of higher gray scale and low gray scale.
Please with reference to Fig. 3, it shows existing many kens liquid crystal indicator 1, and it comprises liquid crystal panel 100, source electrode driver 102 and gate drivers 104.Wherein, Liquid crystal panel 100 comprises n*m pixel 10; Source electrode driver 102 is sent to a plurality of pixels 10 through data line D (1)～D (n) with video data; Gate drivers 104 is sent to liquid crystal panel 100 through sweep trace S (1)～S (m) with sweep signal and opens each row pixel 10 with sequence, and respectively first bias voltage signal and second bias voltage signal is sent to each pixel 10 on the liquid crystal panel 100 through the first capacitor storage beam B1 (1)～B1 (m) and the second capacitor storage beam B2 (1)～B2 (m).Like Fig. 4 and shown in Figure 5; Existing technology proposes the pixel region separation structure of liquid crystal indicator 1; It has a plurality of pixels 10 of arranging with matrix-style, and each pixel 10 comprises one first sub-pixel 11 and one second sub-pixel 12, and each first sub-pixel 11 comprises a liquid crystal capacitance C
LC1, a storage capacitors C
ST1An and switch module M
1, each second sub-pixel 12 comprises a liquid crystal capacitance C
LC2, a storage capacitors C
ST2An and switch module M
2In addition; Liquid crystal indicator 1 also comprises multi-strip scanning line S (1)～S (m), many data line D (1)～D (n) and many capacitor storage beam 15; Wherein capacitor storage beam 15 comprises many first capacitor storage beam B1 (1)～B1 (m) and the second capacitor storage beam B2 (1)～B2 (m); Sweep trace S (1)～S (m) and capacitor storage beam 15 parallel mutual settings, and data line D (1)～D (n) and sweep trace S (1)～vertical setting of S (m).As shown in Figure 4, be example with a certain pixel 10, i bar sweep trace S (i) is arranged between first sub-pixel 11 and second sub-pixel 12 and is connected to switch module M
1And switch module M
2Grid, j bar data line D (j) is through switch module M
1Be connected to liquid crystal capacitance C
LC1And storage capacitors C
ST1, and through switch module M
2Be connected to liquid crystal capacitance C
LC2And storage capacitors C
ST2, in addition, storage capacitors C
ST1And storage capacitors C
ST2Be connected to i bar first capacitor storage beam B1 (i) and the i bar second capacitor storage beam B2 (i) respectively, wherein, i bar second capacitor storage beam B2 (i) and the i+1 bar first capacitor storage beam B1 (i+1) share same entity circuit layout.
As shown in Figure 5, it shows the circuit layout synoptic diagram of several pixels 10, and wherein regional A representes the viewing area of first sub-pixel 11, and area B is represented the viewing area of second sub-pixel 12, and regional A and area B are provided with along scan-line direction alternately; Is example at this with a polarity switching mode of counter-rotating (dot inversion), and in the just same pixel, its polarity in the pixel voltage of adjacent image time is different, and the polarity of the pixel voltage of neighbor also is different.When a pixel 10 activated, its time sequential routine was as shown in Figure 6, was example with regional A; In the first image time f1, behind i bar sweep trace S (i) output scanning signal, the i bar first capacitor storage beam B1 (i) can change low voltage level into; Therefore, the pixel voltage of regional A (is liquid crystal capacitance C
LC1Capacitance) the storage capacitors C that can receive
ST1Influence, slightly reduce to " X-Δ V " by originally " X ".In the second image time f2, behind one scan signal under i bar sweep trace S (i) output, the i bar first capacitor storage beam B1 (i) can transform back into high-voltage level again, and at this moment, the pixel voltage of regional A (is liquid crystal capacitance C
LC1Capacitance) the storage capacitors C that can receive
ST1Influence, slightly be upgraded to " X+ Δ V " by originally " X ".In addition, be example with the area B, in the first image time f1, at i bar sweep trace S (i) output scanning signal and through after half sequential, the i bar second capacitor storage beam B2 (i) can change high-voltage level into, and therefore, the pixel voltage of area B (is liquid crystal capacitance C
LC2Capacitance) the storage capacitors C that can receive
ST2Influence, slightly be upgraded to " X+ Δ V " by originally " X ".In the second image time f2, export next pulse signal and through after half sequential, the i bar second capacitor storage beam B2 (i) can transform back into low voltage level again at i bar sweep trace S (i), at this moment, the pixel voltage of area B (is liquid crystal capacitance C
LC2Capacitance) the storage capacitors C that can receive
ST2Influence, slightly reduce to " X-Δ V " by originally " X ".
As stated, prior art is distinguished into two sub-pixels again with same pixel, and utilizes the mode of the pixel voltage of control two sub-pixels, uses the γ characteristic of improving liquid crystal indicator 1, and is as shown in Figure 7.Yet; As shown in Figure 5; This kind mode can make the pixel voltage difference of the sub-pixel 11 of winning be " X-Δ V " (at first image time f1) or " X+ Δ V " (at second image time f2); For example produce low gray scale color, and make that the pixel voltage difference of second sub-pixel 12 is " X+ Δ V " (at first image time f1) or " X-Δ V " (at second image time f2), for example produce a higher gray scale color; As stated, when being mixed in one the gray scale color with higher gray scale color and low gray scale color, can improve the phenomenon of colour cast.
Please refer to shown in Figure 8ly, it is the penetrance of display and the relation curve of voltage.Current at the low penetration counting rate meter as input voltage X, because fixing Δ V, clear zone that can cause and dark space brightness are unequal, but this phenomenon can be proofreaied and correct through the magnitude of voltage of revising input; When the performance of input voltage X at high penetration; Can cause brightness to descend because of fixing Δ V; In Fig. 8; Because fixing Δ V causes penetrance T (X-Δ V) fall greater than penetrance T (X+ Δ V) ascensional range (difference that is T (X-Δ V) and T (X) is greater than the difference of T (X+ Δ V) with T (X)).In addition, because maximum voltage value is generally fixing,, therefore can cause display overall brightness variation so can't change through the adjustment input signal.
Therefore, how to provide a kind of and can improve γ characteristic that image shows, and further improve the liquid crystal indicator and the driving method thereof of Chromatically compensated ability, just one of important topic of current display industry.
Summary of the invention
Because above-mentioned problem, the object of the invention is to provide a kind of and can improve γ characteristic that image shows, and further improve the liquid crystal indicator and the driving method thereof of Chromatically compensated ability.
To achieve these goals; According to a kind of liquid crystal indicator of the present invention, it comprises a plurality of pixels of arranging with matrix-style, and each pixel comprises one first sub-pixel and one second sub-pixel at least; Each first or second sub-pixel comprises a liquid crystal capacitance and a storage capacitors; And the liquid crystal capacitance of first sub-pixel and the ratio of storage capacitors is less than the liquid crystal capacitance of second sub-pixel and the ratio of storage capacitors, wherein, and in one first pixel and one second pixel in all pixels; First sub-pixel of first pixel and first sub-pixel of second pixel shift to install, and second sub-pixel of second sub-pixel of first pixel and second pixel shifts to install.
In addition, to achieve these goals, comprise a data line, a scanning linear, a pixel, one first capacitor storage beam, reach one second capacitor storage beam according to a kind of liquid crystal panel of the present invention.Wherein, data line is formed on the liquid crystal panel with a first direction and an input voltage is provided, and scanning linear is formed on the liquid crystal panel with a second direction vertical with first direction; Pixel is formed at the infall of data line and sweep trace, and comprises one first sub-pixel and one second sub-pixel, and first sub-pixel comprises one first switch, one first liquid crystal capacitance and one first storage capacitors; One first end of first switch is connected in sweep trace, and one second end of first switch is connected in data line, and one the 3rd end of first switch is connected in one first end of first liquid crystal capacitance and one first end of first storage capacitors; Second sub-pixel comprises a second switch, one second liquid crystal capacitance and one second storage capacitors, and one first end of second switch is connected in sweep trace, and one second end of second switch is connected in data line; One the 3rd end of second switch is connected in one first end of second liquid crystal capacitance and one first end of second storage capacitors; First capacitor storage beam is electrically connected one second end of first storage capacitors, and second capacitor storage beam is electrically connected one second end of second storage capacitors, in this; When the scanning linear activation; First switch module and second switch assembly are conducting, so that the signal of data line imports first sub-pixel and second sub-pixel into, then; After scanning linear is separated ability; The level of first capacitor storage beam and second capacitor storage beam changes respectively, so that the pixel voltage of first sub-pixel and an input voltage have one first offset voltage, the pixel voltage of second sub-pixel and input voltage have one second offset voltage; So that the pixel voltage of first sub-pixel is different with the pixel voltage of second sub-pixel, and first offset voltage is different with second offset voltage.
Moreover to achieve these goals, the driving method of complying with a kind of liquid crystal panel of the present invention is applied to a liquid crystal panel, and driving method comprises the following steps: that at first the activation scanning linear is so that first switch module and second switch assembly are conducting; Then, the signal with data line imports first sub-pixel and second sub-pixel into; At last, separating can scanning linear.Wherein, After scanning linear is separated ability; The level of first capacitor storage beam and second capacitor storage beam changes respectively, so that the pixel voltage of first sub-pixel and an input voltage have one first offset voltage, the pixel voltage of second sub-pixel and input voltage have one second offset voltage; So that the pixel voltage of first sub-pixel is different with the pixel voltage of second sub-pixel, and first offset voltage is different with second offset voltage.
Hold the above; Because of comprising one first sub-pixel and one second sub-pixel at least according in each pixel of liquid crystal indicator of the present invention; And the liquid crystal capacitance of first sub-pixel and the ratio of storage capacitors are less than the liquid crystal capacitance of second sub-pixel and the ratio of storage capacitors; So liquid crystal indicator of the present invention and driving method thereof can make its γ value level off to ideal value, and then effectively improve the γ characteristic that image shows, and further improve Chromatically compensated ability; Use the phenomenon of improving misalignment, and then better image display quality is provided.
Description of drawings
Fig. 1 shows the performance diagram of the gray scale of existing multi-domain vertical alignment-type liquid crystal display panel to light transmittance;
Fig. 2 shows the normalizing light graph of a relation of existing liquid crystal indicator;
Fig. 3 shows the overall schematic of existing many kens liquid crystal indicator;
Fig. 4 shows the schematic equivalent circuit of the pixel of another kind of existing liquid crystal indicator;
Fig. 5 shows the circuit layout synoptic diagram of liquid crystal indicator as shown in Figure 4;
Fig. 6 shows the time sequential routine figure when activating regional A as shown in Figure 5 and area B;
Fig. 7 shows the normalizing light graph of a relation of existing liquid crystal indicator as shown in Figure 4;
Fig. 8 shows the penetrance and the input voltage graph of a relation of existing liquid crystal indicator;
Fig. 9 shows the overall schematic according to many kens liquid crystal indicator of preferred embodiment of the present invention;
Figure 10 shows the schematic equivalent circuit according to the pixel of the liquid crystal indicator of first embodiment of the invention;
Figure 11 A shows the synoptic diagram according to the liquid crystal panel of first embodiment of the invention;
Figure 11 B to Figure 11 E show as the various different structures of the liquid crystal panel of Figure 11 A along CC ' hatching line sectional view;
Figure 12 shows the circuit layout synoptic diagram of liquid crystal indicator shown in figure 10;
Figure 13 shows the time sequential routine figure when activating regional A shown in figure 12 and area B;
Figure 14 shows the penetrance and the input voltage graph of a relation of the liquid crystal indicator of first embodiment of the invention;
Figure 15 shows the schematic equivalent circuit according to the pixel of the liquid crystal indicator of second embodiment of the invention;
Figure 16 shows the circuit layout synoptic diagram of liquid crystal indicator shown in figure 15;
Figure 17 shows the normalizing light graph of a relation of liquid crystal indicator shown in figure 15;
Figure 18 shows the schematic equivalent circuit according to the pixel of the liquid crystal indicator of third embodiment of the invention;
Figure 19 shows the circuit layout synoptic diagram of liquid crystal indicator shown in figure 18; And
Figure 20 shows the entity circuit layout synoptic diagram of liquid crystal indicator shown in figure 18.
The reference numeral explanation:
1,2,3,4 liquid crystal indicators
10,20,20 (j), 20 (j+1) pixel
11,21,21 (j), 21 (j+1), first sub-pixel
12,22,22 (j), 22 (j+1), second sub-pixel
S (1)～S (m), S (i), S (i+1) sweep trace
D (1)～D (n), D (j), D (j+1) data line
15 capacitor storage beam
B1 (1)～B1 (m), B1 (i), B1 (i+1) first capacitor storage beam
B2 (1)～B2 (m), B2 (i), B2 (i+1) second capacitor storage beam
26,26 (j), 26 (j+1) the 3rd sub-pixel
27,27 (j), 27 (j+1) the 4th sub-pixel
The zone of A, B, C, D sub-pixel
C
LC1, C
LC2, C
LC3, C
LC4Liquid crystal capacitance
C
ST1, C
ST2, C
ST3, C
ST4Storage capacitors
L1, L2, L3, L4, L5, L6 curve
M
1, M
2, M
3, M
4Switch module
100,200 liquid crystal panels
102,202 source electrode drivers
104,204 gate drivers
F1 first image time
F2 second image time
206 upper substrates
207 common electrodes
208 infrabasal plates
209,210,211,212,209 ', 210 ' transparency electrode
The ML1 the first metal layer
ML2 second metal level
Embodiment
Below will liquid crystal indicator and driving method thereof according to preferred embodiment of the present invention be described with reference to relevant drawings.
At first be noted that; Liquid crystal indicator according to preferred embodiment of the present invention can be a multi-zone vertical alignment nematic (MVA, Multi-Domain Vertically Aligned) type liquid crystal indicator, a twisted-nematic (Twisted-Nematic) type liquid crystal indicator, an optical compensation curved OCB (Optically Compensated Bend) type liquid crystal indicator, an ASM (Axisymmetric aligned) type liquid crystal indicator, an IPS (In-plane Switching) type liquid crystal indicator; In addition; According to the driving method of the liquid crystal indicator of preferred embodiment of the present invention can be counter-rotating (dot inversion) formula driving method a bit; Just in same frame time, the data signals polarity that puts on a pixel cell is opposite with the data signals polarity that puts on adjacent pixel unit.Also can be row counter-rotating (column inversion) formula driving method, row counter-rotating (row inversion) formula driving method, frame counter-rotating (frame inversion) formula driving method or other kind multi-point reverse driving method (many dots inversion).
[first embodiment]
Please with reference to Fig. 9, it shows a kind of many kens liquid crystal indicator 2 of first embodiment of the invention, and it comprises liquid crystal panel 200, source electrode driver 202 and gate drivers 204.Wherein, Liquid crystal panel 200 comprises n*m pixel 20; Source electrode driver 202 is sent to a plurality of pixels 20 through data line D (1)～D (n) with video data; Gate drivers 204 is sent to liquid crystal panel 200 through sweep trace S (1)～S (m) with sweep signal and opens each row pixel 20 with sequence, and respectively first bias voltage signal and second bias voltage signal is sent to each pixel 20 on the liquid crystal panel 200 through the first capacitor storage beam B1 (1)～B1 (m) and the second capacitor storage beam B2 (1)～B2 (m).Wherein, Data line D (1)～D (n) is formed on the liquid crystal panel 200 with a first direction and an input voltage is provided; Scanning linear S (1)～S (m) is formed on the liquid crystal panel 200 with a second direction; Pixel 20 is formed at the infall of data line D (1)～D (n) and sweep trace S (1)～S (m), and comprises one first sub-pixel and one second sub-pixel, and first sub-pixel comprises one first switch, one first liquid crystal capacitance and one first storage capacitors; One first end of first switch is connected in one of sweep trace S (1)～S (m); One second end of first switch is connected in one of data line D (1)～D (n), and one the 3rd end of first switch is connected in one first end of first liquid crystal capacitance and one first end of first storage capacitors, and second sub-pixel comprises a second switch, one second liquid crystal capacitance and one second storage capacitors; One first end of second switch is connected in one of sweep trace S (1)～S (m); One second end of second switch is connected in one of data line D (1)～D (n), and one the 3rd end of second switch is connected in one first end of second liquid crystal capacitance and one first end of second storage capacitors, and first capacitor storage beam is electrically connected one second end of first storage capacitors; Second capacitor storage beam is electrically connected one second end of second storage capacitors, after will being specified in relevant for the structure of first sub-pixel and second sub-pixel.In the present invention; When scanning linear S (1)～S (m) activation; First switch module and second switch assembly are conducting, so that the signal of data line D (1)～D (n) imports first sub-pixel and second sub-pixel into, then; After scanning linear is separated ability S (1)～S (m); The level of the first capacitor storage beam B1 (1)～B1 (m) and the second capacitor storage beam B2 (1)～B2 (m) changes respectively, so that the pixel voltage of first sub-pixel and an input voltage have one first offset voltage, the pixel voltage of second sub-pixel and input voltage have one second offset voltage; So that the pixel voltage of first sub-pixel is different with the pixel voltage of second sub-pixel, and first offset voltage is different with second offset voltage.
Please,, comprise a plurality of pixels 20 according to the liquid crystal indicator 2 of preferred embodiment of the present invention with reference to shown in Figure 10; It is arranged with matrix-style; And each pixel 20 comprises one first sub-pixel 21 and one second sub-pixel 22 at least, and for example, pixel 20 (j) comprises one first sub-pixel 21 (j) and one second sub-pixel 22 (j) at least; Pixel 20 (j+1) comprises one first sub-pixel 21 (j+1) and one second sub-pixel 22 (j+1) at least, by that analogy.
In the present embodiment, each sub-pixel comprises a liquid crystal capacitance, a storage capacitors, reaches a switch module; Shown in figure 10, each first sub-pixel 21 comprises a liquid crystal capacitance C
LC1, a storage capacitors C
ST1An and switch module M
1, each second sub-pixel 22 comprises a liquid crystal capacitance C
LC2, a storage capacitors C
ST2An and switch module M
2In the present embodiment, switch module M
1And switch module M
2Can be respectively a thin film transistor (TFT) (TFT) or MIM switch module.In addition; Liquid crystal indicator 2 also comprises multi-strip scanning line S (1)～S (m), many data line D (1)～D (n) and many capacitor storage beam 25, and wherein capacitor storage beam 25 comprises many first capacitor storage beam B1 (1)～B1 (m) and the second capacitor storage beam B2 (1)～B2 (m); In the present embodiment, sweep trace S (1)～S (m) and capacitor storage beam 25 parallel mutual settings, and data line D (1)～D (n) and sweep trace S (1)～vertical setting of S (m).
Shown in figure 10, be example with a certain pixel 20 (j), i bar sweep trace S (i) is arranged between first sub-pixel 21 and second sub-pixel 22 and is connected to switch module M
1And switch module M
2Grid, use CS assembly M
1And switch module M
2On off state, j bar data line D (j) is through switch module M
1Be connected to liquid crystal capacitance C
LC1And storage capacitors C
ST1, and through switch module M
2Be connected to liquid crystal capacitance C
LC2And storage capacitors C
ST2, in addition, storage capacitors C
ST1And storage capacitors C
ST2Be connected to i bar first capacitor storage beam B1 (i) and the i bar second capacitor storage beam B2 (i) respectively, wherein, present embodiment i bar second capacitor storage beam B2 (i) and the i+1 bar first capacitor storage beam B1 (i+1) share same entity circuit layout.
Hold the above, as i bar sweep trace S (i) output signal CS assembly M
1And switch module M
2On off state when being conducting, corresponding j bar data line D (j) can import the liquid crystal capacitance C of a data line signal to the first relative sub-pixel 21
LC1And storage capacitors C
ST1, and the liquid crystal capacitance C of the second relative sub-pixel 22
LC2And storage capacitors C
ST2
The structure of each liquid crystal capacitance and storage capacitors below will be detailed, and with the connection relationship of data line and capacitor storage beam.In the present embodiment, each liquid crystal capacitance is to be formed by a common electrode, a liquid crystal layer and pixel electrode definition, and common electrode and pixel electrode are to establish relatively through liquid crystal layer; In addition, each storage capacitors is to store the common electrode definition by a storage electrode, an insulation course and one to form, and stores common electrode and storage electrode is to establish relatively through insulation course; Wherein, Storage electrode is electrically connected with pixel electrode and is electrically connected to relative data line through relative switch module; In addition, in arbitrary pixel, the common electrode of first sub-pixel is electrically connected mutually with the common electrode of second sub-pixel; Ground connection simultaneously for example; And the storage common electrode of first sub-pixel is to separate setting with the storage common electrode of second sub-pixel, that is the storage common electrode of first sub-pixel is that storage common electrode with second sub-pixel is connected to two adjacent capacitor storage beam respectively, wherein; Two adjacent capacitor storage beam have identical amplitude; Its phase differential can differ the sequential of a sweep signal as present embodiment, and promptly the different time in same image time changes the level of the first capacitor storage beam B1 (1)～B1 (m) and the second capacitor storage beam B2 (1)～B2 (m), also can in same image time, change the level of the first capacitor storage beam B1 (1)～B1 (m) and the second capacitor storage beam B2 (1)～B2 (m) simultaneously.
In addition, the liquid crystal panel 200 of above-mentioned first embodiment can have several structure, for making content of the present invention more cheer and bright, slightly takes four kinds of examples at this and does explanation.Figure 11 A is the synoptic diagram of the liquid crystal panel 200 of first embodiment; It comprises a plurality of first sub-pixels 21 (j), 21 (j+1) and a plurality of second sub-pixel 22 (j), 22 (j+1), and comprises multi-strip scanning line S (i) and S (i+1), many first capacitor storage beam B1 (i) and B1 (i+1) and many second capacitor storage beam B2 (i) and B2 (i+1).In addition, Figure 11 B to Figure 11 E be liquid crystal panel 200 various different structures along CC ' hatching line sectional view.In addition, the present embodiment i bar second capacitor storage beam B2 (i) also can adopt with the i+1 bar first capacitor storage beam B1 (i+1) and not share same entity circuit layout.
Shown in Figure 11 B; Liquid crystal panel 200 comprises upper substrate 206, common electrode 207, infrabasal plate 208, transparency electrode 209,210 and ground floor metal M L1 and second layer metal ML2; Two second layer metal ML2 are respectively in order to couple transparency electrode 209 and 210 to data line D (1)～D (n); Two ground floor metal M L1 constitute the first capacitor storage beam B1 and the second capacitor storage beam B2, and the first metal layer ML1 constitutes storage capacitors C with the second corresponding metal level ML2
ST1Or C
ST2Figure 11 C is the sectional view of second kind of liquid crystal panel structure along CC ' hatching line; It is to be electrically connected with the first metal layer ML1 with first kind of different being in transparency electrode 209 and 210 of structure, and the second metal level ML2 constitutes the first capacitor storage beam B1 and the second capacitor storage beam B2.Figure 11 D is the sectional view of the third liquid crystal panel structure along CC ' hatching line, and it also is electrically connected with transparency electrode 211,212 with first kind of different being in the first metal layer ML1 of structure, to increase storage capacitors C
ST1With C
ST2Capacitance.Figure 11 E is the sectional view along CC ' hatching line of the 4th kind of liquid crystal panel structure, itself and first kind of different being in having lacked second metal level of structure.Be noted that; The design of the capacitor storage beam in the above-mentioned liquid crystal panel structure (or bias line) is merely for example; Be not for limiting scope of the present invention, the identical effect that the technician in present technique field can also utilize other structural design to realize all should be contained in the scope of the present invention.
In addition; In the present embodiment, the storage common electrode of first sub-pixel of a time pixel of the storage common electrode of second sub-pixel in arbitrary pixel and the adjacent setting of edge one data line direction or last pixel can be connected to same capacitor storage beam (comprising one first capacitor storage beam B1 and one second capacitor storage beam B2) simultaneously.
Shown in figure 10; Please be simultaneously with reference to two pixels 20 (j), 20 (j+1) along the adjacent setting of one scan line direction; Wherein, In first sub-pixel 21 (j) of pixel 20 (j) is that first sub-pixel 21 (j+1) with an inferior pixel 20 (j+1) shifts to install, and second sub-pixel 22 (j) of pixel 20 (j) is that second sub-pixel 22 (j+1) with an inferior pixel 20 (j+1) shifts to install; For the characteristic that makes present embodiment clearer; Please with reference to shown in Figure 12; It shows the circuit layout synoptic diagram of adjacent two pixels 20 (j), 20 (j+1), and wherein regional A representes the viewing area of first sub-pixel 21 (j), and area B is represented the viewing area of second sub-pixel 22 (j); Wherein, Please be simultaneously with reference to Figure 11 B and Figure 12, regional A shown in Figure 12 is the transparency electrode 209 shown in Figure 11 B, area B shown in Figure 12 is the transparency electrode 210 shown in Figure 11 B; Capacitor storage beam B1 shown in Figure 12 (i), B2 (i) are the first metal layer ML1 shown in Figure 11 B, and the second metal level ML2 shown in Figure 11 B is positioned at overlapping place of capacitor storage beam B1 (i), B2 (i) and regional A, area B.Can know that by Figure 12 adjacent two pixels 20 (j), first sub-pixel 21 (j) of 20 (j+1), 21 (j+1) shift to install, and adjacent two pixels 20 (j), second sub-pixel 22 (j) of 20 (j+1), 22 (j+1) also shift to install.
In the present embodiment; Please again with reference to shown in Figure 10; In adjacent two pixels 20 (j) that are provided with along scan-line direction, 20 (j+1); First sub-pixel 21 (j+1) of first sub-pixel 21 (j) of pixel 20 (j) and an adjacent time pixel 20 (j+1) is similar to mirror image and shifts to install, and second sub-pixel 22 (j+1) of second sub-pixel 22 (j) of pixel 20 (j) and a time pixel 20 (j+1) also is similar to mirror image and shifts to install; At length say; At first the boundary (i.e. i bar sweep trace S (i)) with first sub-pixel 21 (j) and second sub-pixel 22 (j) is an axis of symmetry; Obtain the mirror image of first sub-pixel 21 (j) of pixel 20 (j) in the position of second sub-pixel 22 (j); Then this mirror image is moved a pixel along scan-line direction, promptly can obtain first sub-pixel 21 (j+1) of a time pixel 20 (j+1), so claim in the present embodiment that first sub-pixel 21 (j) and first sub-pixel 21 (j+1) are similar to mirror image and shift to install; In like manner; If the boundary (i.e. i bar sweep trace S (i)) with first sub-pixel 21 (j) and second sub-pixel 22 (j) is an axis of symmetry; Obtain the mirror image of second sub-pixel 22 (j) of a certain pixel 20 (j) in the position of first sub-pixel 21 (j); Then this mirror image is moved a pixel along scan-line direction, promptly can obtain second sub-pixel 22 (j+1) of a time pixel 20 (j+1), so claim in the present embodiment that second sub-pixel 22 (j) and second sub-pixel 22 (j+1) are similar to mirror image and shift to install.
(for example Figure 11 B, 11C, 11D, 11E) can know by above stated specification; The area difference that the present invention's ground floor metal capable of using (for example ML1), second layer metal (for example ML2) or transparency electrode (for example 209,210) overlap is each other adjusted the size of sub-pixel storage capacitors.Also can adjust simultaneously transparency electrode (for example 209; 210) with respect to the overlapping area size of common electrode (for example 207), adjust the size of sub-pixel liquid crystal capacitance, make shown in figure 10; In arbitrary pixel 20 (j) or 20 (j+1), the storage capacitors C of first sub-pixel 21 (j) or 21 (j+1)
ST1Than liquid crystal capacitance C
LC1Ratio less than the storage capacitors C of second sub-pixel 22 (j) or 22 (j+1)
ST2Than liquid crystal capacitance C
LC2Ratio (be C
ST1/ C
LC1＜C
ST2/ C
LC2).
Then; Please with reference to shown in Figure 13; It shows the time sequential routine when activating a pixel 20 (j) or 20 (j+1), is example at this with a polarity switching mode of counter-rotating (dot inversion), in the just same pixel; Its polarity in the pixel voltage of adjacent image time is different, and the polarity of the pixel voltage of neighbor also is different.With regional A (like Figure 12) is example, and in the first image time f1, behind i bar sweep trace S (i) output scanning signal, the i bar first capacitor storage beam B1 (i) can change low voltage level into, and therefore, the pixel voltage of regional A (is liquid crystal capacitance C
LC1Capacitance) the storage capacitors C that can receive
ST1Influence, slightly reduce to " X-Δ V by originally " X "
1", in the second image time f2, behind one scan signal under i bar sweep trace S (i) output, the i bar first capacitor storage beam B1 (i) can transform back into high-voltage level again, and at this moment, the pixel voltage of regional A (is liquid crystal capacitance C
LC1Capacitance) the storage capacitors C that can receive
ST1Influence, slightly be upgraded to " X+ Δ V by originally " X "
1", therefore the brightness meeting of regional A descends a little; In addition, be example with the area B, in the first image time f1, at i bar sweep trace S (i) output pulse signal and through after half sequential, the i bar second capacitor storage beam B2 (i) can change high-voltage level into, and therefore, the pixel voltage of area B (is liquid crystal capacitance C
LC2Capacitance) the storage capacitors C that can receive
ST2Influence, slightly be upgraded to " X+ Δ V by originally " X "
2", then, in the second image time f2, export next pulse signal and through after half sequential, the i bar second capacitor storage beam B2 (i) can transform back into low voltage level again at i bar sweep trace S (i), at this moment, the pixel voltage of area B (is liquid crystal capacitance C
LC2Capacitance) the storage capacitors C that can receive
ST2Influence, slightly reduce to " X-Δ V by originally " X "
2", so the brightness meeting of area B promotes a little; Hold the above, because (C
ST1/ C
LC1＜C
ST2/ C
LC2), so Δ V
1＜Δ V
2So comparison domain A and area B can find that the brightness of area B is a bit larger tham the brightness of regional A, in this, can regional A and area B be decided to be dark space and clear zone respectively.
Moreover, because the pixel voltage difference of first sub-pixel 21 (j) or 21 (j+1) is " X-Δ V
1" (at the first image time f1) or " X+ Δ V
1" (at the second image time f2), for example produce low gray scale, and the pixel voltage difference of second sub-pixel 22 (j) or 22 (j+1) is " X+ Δ V
2" (at the first image time f1) or " X-Δ V
2" (at the second image time f2), for example produce a higher gray scale, and the storage capacitors C of first sub-pixel 21 (j) or 21 (j+1)
ST1With liquid crystal capacitance C
LC1Ratio less than the storage capacitors C of second sub-pixel 22
ST2With liquid crystal capacitance C
LC2Ratio (C
ST1/ C
LC1＜C
ST2/ C
LC2), that is Δ V
1Less than Δ V
2So, the amplitude that the brightness decline scope of regional A can promote less than the brightness of area B; For example, if X is 5 volts, Δ V
1Be 0.2 volt, Δ V
2It is 0.8 volt; Then the pixel voltage difference of regional A is that the pixel voltage difference of 5-0.2=4.8 volt, area B is the 5+0.8=5.8 volt; Therefore; The mean pixel voltage difference of the liquid crystal indicator 2 of preferred embodiment of the present invention can be increased to (4.8+5.8)/2=5.3 volt, and it is a little more than existing mean pixel voltage difference (5 volts); In addition, please comparison diagram 8 and Figure 14, when the performance of input voltage X at high penetration, the penetrance T of present embodiment (X-Δ V
1) fall (is T (X-Δ V less than existing penetrance T (X-Δ V) fall
1) with the difference of T (X) less than the difference of T (X-Δ V) with T (X)), and the penetrance T of present embodiment (X+ Δ V
2) ascensional range (is T (X+ Δ V greater than existing penetrance T (X+ Δ V) ascensional range
2) with the difference of T (X) greater than the difference of T (X+ Δ V) with T (X)), so the brightness of the higher gray area of present embodiment and low gray scale is all greater than the brightness of existing higher gray area and low gray scale.Hence one can see that, and the present invention can suitably utilize Δ V
1And Δ V
2Value adjust the brightness of first sub-pixel 21 (j), 21 (j+1) and second sub-pixel 22 (j), 22 (j+1), effectively promote the overall brightness of liquid crystal indicator simultaneously, and obtain preferable low aberration γ characteristic.
[second embodiment]
Please refer to shown in Figure 15ly, it shows a kind of many kens liquid crystal indicator 3 of second embodiment of the invention, and in the present embodiment, each pixel 20 also comprises one the 3rd sub-pixel 26, and each the 3rd sub-pixel 26 comprises a liquid crystal capacitance C
LC3, a storage capacitors C
ST3An and switch module M
3In addition, in the present embodiment, the storage capacitors C of second sub-pixel 22
ST2Than liquid crystal capacitance C
LC2Ratio less than the storage capacitors C of the 3rd sub-pixel 26
ST3Than liquid crystal capacitance C
LC3Ratio (C
ST2/ C
LC2＜C
ST3/ C
LC3), and among adjacent two pixels 20 (j) and 20 (j+1), the 3rd sub-pixel 26 (j) of pixel 20 (j) shifts to install with the 3rd sub-pixel 26 (j+1) of an adjacent pixel 20 (j+1).In the present embodiment; In adjacent two pixels 20 (j) that are provided with along scan-line direction and 20 (j+1), first sub-pixel 21 (j) of pixel 20 (j), second sub-pixel 22 (j), and first sub-pixel 21 (j+1) of the 3rd sub-pixel 26 (j) and a time pixel 20 (j+1), second sub-pixel 22 (j+1), and the 3rd sub-pixel 26 (j+1) be similar to mirror image respectively and shift to install.
As previously mentioned, each sub-pixel can be that axis of symmetry shifts to install with the center of the boundary of two pixels, or is the setting of line of symmetry mirror image with the boundary of each sub-pixel.For example; In the present embodiment; At first the boundary (i.e. i bar sweep trace S (i)) with first sub-pixel 21 (j) and second sub-pixel 22 (j) is an axis of symmetry; Obtain the mirror image of first sub-pixel 21 (j) of pixel 20 (j) in second sub-pixel 22 (j) and the position of the 3rd sub-pixel 26 (j); Then this mirror image is moved a pixel along scan-line direction, promptly can obtain first sub-pixel 21 (j+1) of a time pixel 20 (j+1), so claim in the present embodiment that first sub-pixel 21 (j) and first sub-pixel 21 (j+1) are similar to mirror image and shift to install; In like manner; If the boundary (i.e. i bar sweep trace S (i)) with first sub-pixel 21 (j) and second sub-pixel 22 (j) is an axis of symmetry; Obtain the mirror image of combination of second sub-pixel 22 (j) and the 3rd sub-pixel 26 (j) of pixel 20 (j) in the position of first sub-pixel 21 (j); Then this mirror image is moved a pixel along scan-line direction; Promptly can obtain second sub-pixel 22 (j+1) of a time pixel 20 (j+1) and the combination of the 3rd sub-pixel 26 (j+1), so claim in the present embodiment that second sub-pixel 22 (j) and the combination of the 3rd sub-pixel 26 (j) and the combination approximation of second sub-pixel 22 (j+1) and the 3rd sub-pixel 26 (j+1) shift to install in mirror image.Shown in figure 16; It shows the circuit layout synoptic diagram of adjacent two pixels 20 (j) and 20 (j+1), and wherein regional A representes the viewing area of first sub-pixel 21 (j) and 21 (j+1), and area B is represented the viewing area of second sub-pixel 22 (j) and 22 (j+1); Zone C is represented the viewing area of the 3rd sub-pixel 26 (j) and 26 (j+1); Wherein, please be simultaneously with reference to Figure 11 B and Figure 16, regional A shown in Figure 16 is the transparency electrode 209 shown in Figure 11 B; Area B shown in Figure 16 is the transparency electrode 210 shown in Figure 11 B; Zone C shown in Figure 16 also is a transparency electrode 210 ' (Figure 11 B does not show), and capacitor storage beam B1 shown in Figure 16 (i), B2 (i) are the first metal layer ML1 shown in Figure 11 B, and the second metal level ML2 shown in Figure 11 B is positioned at overlapping place of capacitor storage beam B1 (i), B2 (i) and regional A, area B.Can know that by Figure 16 adjacent two pixels 20 (j) are similar to mirror image with 22 (j+1) and the 3rd sub-pixel 26 (j) respectively with 26 (j+1) and shift to install with 21 (j+1), second sub-pixel 22 (j) with first sub-pixel 21 (j) of 20 (j+1).
Please refer to shown in Figure 17; Present embodiment is that same pixel is distinguished into three subpixels again, so the normalizing light of the image that the user sees in the dead ahead of screen and oblique the place ahead can be than existing mode (as shown in Figure 7) near ideal state (slope be 1 straight line); In addition; Present embodiment can also utilize the mode of the brightness of control three sub-pixels; Use the further γ characteristic of improving liquid crystal indicator 3; For example, brightness that can control area C is greater than the brightness of the brightness of area B and the area B brightness greater than regional A, so the combination of comparison domain A and area B and zone C can find being combined as the clear zone of area B and zone C and regional A is the dark space; In addition because the brightness of regional A, area B and zone C is neither identical, and the luminance difference of regional A, area B and zone C can be respectively according to the storage capacitors C of first sub-pixel 21
ST1Than liquid crystal capacitance C
LC1Ratio (C
ST1/ C
LC1), the storage capacitors C of second sub-pixel 22
ST2Than liquid crystal capacitance C
LC2Ratio (C
ST2/ C
LC2), and the storage capacitors C of the 3rd sub-pixel 26
ST3Than liquid crystal capacitance C
LC3Ratio (C
ST3/ C
LC3) decide, so can change normalizing light relation in more resilient ground in dead ahead with oblique the place ahead of screen, and then the γ characteristic of adjustment liquid crystal indicator 3.
[the 3rd embodiment]
Certainly, can same pixel be distinguished into four or above sub-pixel again according to liquid crystal indicator of the present invention, the technician that its embodiment should be this utilization can realize with reference to the foregoing description.Below will illustrate the embodiment that same pixel region is divided into four subpixels; Please with reference to shown in Figure 180; It is to show another kind of liquid crystal indicator 4, and in the present embodiment, each pixel 20 comprises one first sub-pixel 21, one second sub-pixel 22, one the 3rd sub-pixel 26, and one the 4th sub-pixel 27; For example; Pixel 20 (j) comprises one first sub-pixel 21 (j), one second sub-pixel 22 (j), one the 3rd sub-pixel 26 (j) at least, reaches one the 4th sub-pixel 27 (j), and pixel 20 (j+1) comprises one first sub-pixel 21 (j+1) and one second sub-pixel 22 (j+1), one the 3rd sub-pixel 26 (j+1) at least, reaches one the 4th sub-pixel 27 (j+1), by that analogy; Wherein first sub-pixel 21 (j) and 21 (j+1) are responsible for showing dark signal with second sub-pixel 22 (j) and 22 (j+1); The 3rd sub-pixel 26 (j) and 26 (j+1) and the 4th sub-pixel 27 (j) and 27 (j+1) are responsible for showing brighter signal.Wherein the structure of first sub-pixel 21 (j) and 21 (j+1), second sub-pixel 22 (j) and 22 (j+1) and the 3rd sub-pixel 26 (j) and 26 (j+1) as previously mentioned, so repeat no more; In the present embodiment, the 4th sub-pixel 27 (j) and 27 (j+1) comprise a liquid crystal capacitance C respectively
LC4, a storage capacitors C
ST4An and switch module M
4In the present embodiment, the design of the storage capacitors of each subpixels and liquid crystal capacitance can be following: the storage capacitors C of first sub-pixel 21 (j) or 21 (j+1)
ST1Than liquid crystal capacitance C
LC1Ratio less than the storage capacitors C of second sub-pixel 22
ST2Than liquid crystal capacitance C
LC2Ratio (C
ST1/ C
LC1＜C
ST2/ C
LC2), the storage capacitors C of second sub-pixel 22 (j) or 22 (j+1)
ST2Than liquid crystal capacitance C
LC2Ratio less than the storage capacitors C of the 3rd sub-pixel 26 (j) or 26 (j+1)
ST3Than liquid crystal capacitance C
LC3Ratio (C
ST2/ C
LC2＜C
ST3/ C
LC3), the storage capacitors C of the 3rd sub-pixel 26 (j) or 26 (j+1)
ST3Than liquid crystal capacitance C
LC3Ratio less than the storage capacitors C of the 4th sub-pixel 27 (j) or 27 (j+1)
ST4Than liquid crystal capacitance C
LC4Ratio (C
ST3/ C
LC3＜C
ST4/ C
LC4), i.e. C
ST1/ C
LC1＜C
ST2/ C
LC2＜C
ST3/ C
LC3＜C
ST4/ C
LC4Just control the storage capacitors C of each subpixels
STnWith liquid crystal capacitance C
LCn, make that receiving the offset voltage that can produce under the influence of capacitor storage beam signal is Δ V
n, wherein the offset voltage that produced of first sub-pixel is Δ V
1, the offset voltage that second sub-pixel is produced is Δ V
2, the offset voltage that the 3rd sub-pixel is produced is Δ V
3, the offset voltage that the 4th sub-pixel is produced is Δ V
4, make Δ V at last
1＜Δ V
2＜Δ V
3＜Δ V
4
In addition, in the present embodiment, the storage capacitors of each subpixels and liquid crystal capacitance design also can be following: the storage capacitors C of first sub-pixel 21 (j) or 21 (j+1)
ST1Than liquid crystal capacitance C
LC1Ratio equal the storage capacitors C of the 3rd sub-pixel 26 (j) or 26 (j+1)
ST3Than liquid crystal capacitance C
LC3Ratio (C
ST1/ C
LC1=C
ST3/ C
LC3), the storage capacitors C of second sub-pixel 22 (j) or 22 (j+1)
ST2Than liquid crystal capacitance C
LC2Ratio equal the storage capacitors C of the 4th sub-pixel 27 (j) or 27 (j+1)
ST4Than liquid crystal capacitance C
LC4Ratio (C
ST2/ C
LC2=C
ST4/ C
LC4), the storage capacitors C of the 3rd sub-pixel 26 (j) or 26 (j+1)
ST3Than liquid crystal capacitance C
LC3Ratio less than the storage capacitors C of the 4th sub-pixel 27 (j) or 27 (j+1)
ST4Than liquid crystal capacitance C
LC4Ratio (C
ST3/ C
LC3＜C
ST4/ C
LC4), i.e. C
ST1/ C
LC1=C
ST3/ C
LC3＜C
ST2/ C
LC2=C
ST4/ C
LC4, Δ V just
1=Δ V
3＜Δ V
2=Δ V
4
In the present embodiment; In adjacent two pixels 20 (j) and 20 (j+1) that are provided with along scan-line direction, first sub-pixel 21 (j) of pixel 20 (j), second sub-pixel 22 (j), the 3rd sub-pixel 26 (j), and the 4th sub-pixel 27 (j) respectively with first sub-pixel 21 (j+1) of an inferior pixel 20 (j+1), second sub-pixel 22 (j+1), the 3rd sub-pixel 26 (j+1), and the 4th sub-pixel 27 (j+1) be similar to mirror image and shift to install.At length say; At first the boundary (i.e. i bar sweep trace S (i)) with first sub-pixel 21 (j) and second sub-pixel 22 (j) is an axis of symmetry; Obtain first sub-pixel 21 (j) of pixel 20 (j) and the mirror image of the combination of the 4th sub-pixel 27 (j) in second sub-pixel 22 (j) and the position of the 3rd sub-pixel 26 (j); Then this mirror image is moved a pixel along scan-line direction; Promptly can obtain first sub-pixel 21 (j+1) and the 4th sub-pixel 27 (j+1) of a time pixel 20 (j+1), so claim in the present embodiment that first sub-pixel 21 (j) and the combination of the 4th sub-pixel 27 (j) and the combination approximation of first sub-pixel 21 (j+1) and the 4th sub-pixel 27 (j+1) shift to install in mirror image; In like manner; If the boundary (i.e. i bar sweep trace S (i)) with first sub-pixel 21 (j) and second sub-pixel 22 (j) is an axis of symmetry; Obtain the mirror image of combination of second sub-pixel 22 (j) and the 3rd sub-pixel 26 (j) of pixel 20 (j) in the position of first sub-pixel 21 (j) and the 4th sub-pixel 27 (j); Then this mirror image is moved a pixel along scan-line direction; Promptly can obtain second sub-pixel 22 (j+1) of a time pixel 20 (j+1) and the combination of the 3rd sub-pixel 26 (j+1), so claim in the present embodiment that second sub-pixel 22 (j) and the combination of the 3rd sub-pixel 26 (j) and the combination approximation of second sub-pixel 22 (j+1) and the 3rd sub-pixel 26 (j+1) shift to install in mirror image.Shown in figure 19; It shows the circuit layout synoptic diagram of adjacent two pixels 20 (j) and 20 (j+1); Wherein regional A representes the viewing area of first sub-pixel 21 (j) and 21 (j+1), and area B is represented the viewing area of second sub-pixel 22 (j) and 22 (j+1), and zone C is represented the viewing area of the 3rd sub-pixel 26 (j) and 26 (j+1); Region D is represented the viewing area of the 4th sub-pixel 27 (j) and 27 (j+1); Wherein, please be simultaneously with reference to Figure 11 B and Figure 19, regional A shown in Figure 19 is the transparency electrode 209 shown in Figure 11 B; Area B shown in Figure 19 is the transparency electrode 210 shown in Figure 11 B; Zone C shown in Figure 19 and region D also are respectively a transparency electrode 210 ' and a transparency electrode 209 ' (Figure 11 B does not show), and capacitor storage beam B1 shown in Figure 19 (i), B2 (i) are the first metal layer ML1 shown in Figure 11 B, and the second metal level ML2 shown in Figure 11 B is positioned at overlapping place of capacitor storage beam B1 (i), B2 (i) and regional A, area B.Can know that by Figure 19 adjacent two pixels 20 (j) are similar to mirror image with 26 (j+1) and the 4th sub-pixel 27 (j) respectively with 27 (j+1) and shift to install with 22 (j+1), the 3rd sub-pixel 26 (j) with 21 (j+1), second sub-pixel 22 (j) with first sub-pixel 21 (j) of 20 (j+1).
In addition, Figure 20 shows the entity circuit layout synoptic diagram of liquid crystal indicator shown in figure 18, and wherein the first capacitor storage beam B1 (i), B1 (i+1) adopt the circuit layout design shown in Figure 11 B with the second capacitor storage beam B2 (i).Moreover; Please refer to shown in Figure 19; Present embodiment is that same pixel is distinguished into four subpixels again, so the normalizing light of the image that the user sees in the dead ahead of screen and oblique the place ahead can be than existing mode (as shown in Figure 5) near ideal state (slope be 1 straight line); In addition; Present embodiment can also utilize the mode of the brightness of control four sub-pixels; Use the further γ characteristic of improving liquid crystal indicator 4; For example, brightness that can control area C greater than the brightness of the brightness of area B, area B greater than the brightness of the brightness of region D and region D brightness greater than regional A, so the combination of the combination of comparison domain A and region D and area B and zone C can find being combined as the clear zone of area B and zone C and regional A and region D be combined as the dark space; In addition because the brightness of regional A, area B, zone C and region D is neither identical, and the luminance difference of regional A, area B and zone C can be respectively according to the storage capacitors C of first sub-pixel 21
ST1Than liquid crystal capacitance C
LC1Ratio (C
ST1/ C
LC1), the storage capacitors C of second sub-pixel 22
ST2Than liquid crystal capacitance C
LC2Ratio (C
ST2/ C
LC2), the storage capacitors of the 3rd sub-pixel 26 compares C
ST3Liquid crystal capacitance C
LC3Ratio (C
ST3/ C
LC3), and the storage capacitors C of the 4th sub-pixel 27
ST4Than liquid crystal capacitance C
LC4Ratio (C
ST4/ C
LC4) decide, so the user can flexibly change the normalizing light relation in dead ahead with oblique the place ahead of screen, and then the γ characteristic of adjustment liquid crystal indicator 4.
In addition, the present invention has also disclosed a kind of driving method of liquid crystal panel, and it is to be applied to above-mentioned liquid crystal panel, and comprises the following step: at first, the activation scanning linear is so that first switch module and second switch assembly are conducting; Then, the signal with data line imports first sub-pixel and second sub-pixel into; At last, separating can scanning linear.In the present invention, after scanning linear was separated ability, the level of first capacitor storage beam and second capacitor storage beam changed respectively, so that the pixel voltage of first sub-pixel and an input voltage have one first offset voltage (like Δ V
1), the pixel voltage of second sub-pixel and input voltage have one second offset voltage (like Δ V
2), so that the pixel voltage of first sub-pixel is different with the pixel voltage of second sub-pixel, and first offset voltage is different with this second offset voltage.Because the driving method of liquid crystal panel of the present invention is described in more detail in the foregoing description, so repeat no more.
In sum; Because of comprising one first sub-pixel and one second sub-pixel at least according in each pixel of liquid crystal indicator of the present invention; And the liquid crystal capacitance of first sub-pixel and the ratio of storage capacitors are less than the liquid crystal capacitance of second sub-pixel and the ratio of storage capacitors; So liquid crystal indicator of the present invention and driving method thereof can make its γ value level off to ideal value, and then effectively improve the γ characteristic that image shows, and further improve Chromatically compensated ability; Use the phenomenon of improving misalignment, and then better image display quality is provided.
The above is merely illustrative, but not is restricted.Anyly do not break away from spirit of the present invention and category, and, all should be contained in the claim of the present invention its equivalent modifications of carrying out or change.
Claims (6)
1. liquid crystal panel comprises:
One data line is formed on this liquid crystal panel and an input voltage is provided with a first direction;
One scanning linear is formed on this liquid crystal panel with a second direction, and this first direction is vertical with this second direction;
One pixel is formed at the infall of this data line and this sweep trace, comprising:
One first sub-pixel; Comprise one first switch, one first liquid crystal capacitance and one first storage capacitors; Wherein, one first end of this first switch is connected in this sweep trace, and one second end of this first switch is connected in this data line; One the 3rd end of this first switch is connected in one first end of this first liquid crystal capacitance and one first end of this first storage capacitors, and
One second sub-pixel; Comprise a second switch, one second liquid crystal capacitance and one second storage capacitors; Wherein, One first end of this second switch is connected in this sweep trace, and one second end of this second switch is connected in this data line, and one the 3rd end of this second switch is connected in one first end of this second liquid crystal capacitance and one first end of this second storage capacitors;
One first capacitor storage beam is electrically connected one second end of this first storage capacitors; And
One second capacitor storage beam is electrically connected one second end of this second storage capacitors;
Wherein, when this scanning linear activation, this first switch module and this second switch assembly are conducting; So that the signal of this data line imports this first sub-pixel and this second sub-pixel into; Then, after this scanning linear was separated ability, the level of this first capacitor storage beam and this second capacitor storage beam changed respectively; So that the pixel voltage of this first sub-pixel and an input voltage have one first offset voltage; The pixel voltage of this second sub-pixel and this input voltage have one second offset voltage, so that the pixel voltage of this first sub-pixel is different with the pixel voltage of this second sub-pixel, and this first offset voltage is different with this second offset voltage.
2. liquid crystal panel as claimed in claim 1 also comprises a bias generating circuit, is formed on the substrate of this liquid crystal panel, and produces a bias voltage signal to separate ability this first capacitor storage beam of rear drive and this second capacitor storage beam in this first scanning linear.
3. liquid crystal panel as claimed in claim 1; Wherein this pixel also comprises one the 3rd sub-pixel; It comprises one the 3rd switch, one the 3rd liquid crystal capacitance and one the 3rd storage capacitors; One first end of the 3rd switch is connected in this sweep trace, and one second end of the 3rd switch is connected in this data line, and one the 3rd end of the 3rd switch is connected in one first end of the 3rd liquid crystal capacitance and one first end of the 3rd storage capacitors; This second capacitor storage beam is electrically connected one second end of the 3rd storage capacitors; When this scanning linear activation, this first switch module, this second switch assembly and the 3rd switch module are conducting, so that the signal of this data line imports this first sub-pixel, this second sub-pixel and the 3rd sub-pixel into; Then; After this scanning linear was separated ability, the level of this first capacitor storage beam, this second capacitor storage beam and the 3rd capacitor storage beam changed respectively, so that the pixel voltage of this first sub-pixel and this input voltage have this first offset voltage; The pixel voltage of this second sub-pixel and this input voltage have this second offset voltage; The pixel voltage of the 3rd sub-pixel and this input voltage have one the 3rd offset voltage, so that the pixel voltage of the pixel voltage of the pixel voltage of this first sub-pixel, this second sub-pixel and the 3rd sub-pixel is different, and this first offset voltage, this second offset voltage and the 3rd offset voltage are different.
4. liquid crystal panel as claimed in claim 3; Wherein this pixel also comprises one the 4th sub-pixel; It comprises one the 4th switch, one the 4th liquid crystal capacitance and one the 4th storage capacitors; One first end of the 4th switch is connected in this sweep trace; One the 4th end of the 4th switch is connected in this data line, and one the 3rd end of the 4th switch is connected in one first end of the 4th liquid crystal capacitance and one first end of the 4th storage capacitors, and this first capacitor storage beam is electrically connected one second end of the 4th storage capacitors; When this scanning linear activation; This first switch module, this second switch assembly, the 3rd switch module and the 4th switch module are conducting, so that the signal of this data line imports this first sub-pixel, this second sub-pixel, the 3rd sub-pixel and the 4th sub-pixel into, then; After this scanning linear is separated ability; The level of this first capacitor storage beam, this second capacitor storage beam, the 3rd capacitor storage beam and the 4th capacitor storage beam changes respectively, so that the pixel voltage of this first sub-pixel and this input voltage have this first offset voltage, the pixel voltage of this second sub-pixel and this input voltage have this second offset voltage; The pixel voltage of the 3rd sub-pixel and this input voltage have the 3rd offset voltage; The pixel voltage of the 4th sub-pixel and this input voltage have one the 4th offset voltage, so that the pixel voltage of the pixel voltage of the pixel voltage of the pixel voltage of this first sub-pixel, this second sub-pixel, the 3rd sub-pixel and the 4th sub-pixel is different, and this first offset voltage, this second offset voltage, the 3rd offset voltage and the 4th offset voltage are different.
5. liquid crystal panel as claimed in claim 1, wherein said switch module comprise a thin film transistor (TFT) respectively at least.
6. liquid crystal panel as claimed in claim 1, wherein this liquid crystal panel is a multi-domain perpendicular alignment-type liquid crystal panel, a twisted nematic liquid crystals display device, an optical compensation curved OCB type liquid crystal indicator, an ASM type liquid crystal panel or an IPS type liquid crystal panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210092447.7A CN102621730B (en) | 2007-04-02 | 2007-04-02 | Liquid crystal panel |
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| CN201210092447.7A CN102621730B (en) | 2007-04-02 | 2007-04-02 | Liquid crystal panel |
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| CN2007100921073A Division CN101281310B (en) | 2007-04-02 | 2007-04-02 | Crystal display device and driving method thereof |
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| CN102621730B CN102621730B (en) | 2015-05-27 |
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| CN107527584A (en) * | 2017-09-11 | 2017-12-29 | 京东方科技集团股份有限公司 | Driving method, image element circuit and the display device of image element circuit |
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| CN102621730B (en) | 2015-05-27 |
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