CN101833210A - Liquid crystal display panel - Google Patents
Liquid crystal display panel Download PDFInfo
- Publication number
- CN101833210A CN101833210A CN201010181118A CN201010181118A CN101833210A CN 101833210 A CN101833210 A CN 101833210A CN 201010181118 A CN201010181118 A CN 201010181118A CN 201010181118 A CN201010181118 A CN 201010181118A CN 101833210 A CN101833210 A CN 101833210A
- Authority
- CN
- China
- Prior art keywords
- pixel
- sub
- data line
- common electrode
- active device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention relates to a liquid crystal display panel comprising an active element basal plate, an opposite-direction basal plate and a liquid crystal layer. The active element basal plate comprises a plurality of scanning lines, a plurality of data lines staggered with the scanning lines and a plurality of pixels arranged in an array way. Each pixel at least comprises a first sub-pixel, a second sub-pixel and a third sub-pixel. The first sub-pixel, the second sub-pixel and the third sub-pixel in each pixel are respectively electrically connected with different data lines, but are electrically connected with the same scanning line. The opposite-direction basal plate with an intercommunication electrode is arranged above the active element basal plate. The coupling capacitance (Cdc1) between the data lines connected with the second sub-pixel and the intercommunication electrode is greater than the coupling capacitance (Cdc2) between the data lines connected with the first sub-pixel and the third sub-pixel and the intercommunication electrode. The liquid crystal layer is arranged between the active element basal plate and the opposite-direction basal plate. The intercommunication voltage of the opposite-direction basal plate with offset compensation in the embodiment of the invention is beneficial to improving the brightness uniformity of each sub-pixel and avoids the generation of the phenomenon of color offset.
Description
Technical field
The present invention relates to a kind of display panel, particularly relate to a kind of display panels.
Background technology
Along with showing being showing improvement or progress day by day of science and technology, people can make life convenient more by the auxiliary of display, and for asking light, the thin characteristic of display, (flat panel display FPD) becomes present main flow to impel flat-panel screens.In many flat-panel screens, (liquid crystal display LCD) have advantageous characteristic such as high spatial utilization ratio, low consumpting power, radiationless and low electromagnetic interference (EMI), so LCD is very popular for LCD.In recent years, LCD TV (LCD TV) develops towards high image resolution and large-sized direction, in large-sized display panels, signal on transmitting, be subjected to easily panel integral body capacitance-resistance hysteresis phenomenon (RC delay) influence and cause the distortion of signal.
Figure 1A and Fig. 2 A show the check patterns of display panels respectively.Generally speaking, when confirming the image quality of display panels, meeting is used the type of drive of some counter-rotating (dot inversion) and is adopted vertical bar shape pattern (vertical-strip pattern) to present chequered with black and white display frame and judge, shown in Figure 1A; Or use row counter-rotating (column inversion), and adopt gridiron pattern pattern (check pattern) to present chequered with black and white display frame and judge, shown in Fig. 2 A.Figure 1B and Fig. 2 B then are respectively the operation signal waveform synoptic diagram of each color sub-pixel of Figure 1A and Fig. 2 A, and wherein Figure 1B and Fig. 2 B are that the pixel P with the upper left corner in the display panel of Figure 1A and Fig. 2 A is an example.
In Figure 1A and Fig. 2 A, display panels has the pixel cell P of a plurality of arrayed respectively, wherein each pixel cell P comprises sub-pixel (sub-pixel) R, G, the B that arranges in regular turn along line direction, and sub-pixel R, G, B electrically connect by the active member of correspondence and corresponding scanning line SL and data line DL respectively.R, G and B are expressed as respectively and show red, green and blue sub-pixel, symbol "+" expression is loaded into the voltage of video data of corresponding sub-pixel greater than common electric voltage (common voltage, Vcom), symbol "-" expression is loaded into the voltage of video data of corresponding sub-pixel less than common electric voltage (Vcom), and promptly symbol "+" is represented opposite polarity respectively with symbol "-".For convenience of description, the display panel of the following stated is to represent black picture than darker regions.
Please refer to Figure 1B and Fig. 2 B, signal VDL represents that signal VGL then represents the signal that the sweep trace SL of Figure 1A and Fig. 2 A opens by the signal of the data line DL transmission of Figure 1A and Fig. 2 A.When sweep trace SL was unlocked in regular turn, data line DL can provide different pixel voltage VR, VG and VB to input to corresponding red sub-pixel R, green sub-pixels G and blue subpixels B respectively.Yet, because pixel voltage VR and VB are the voltage (for example being all positive polarity voltage) of identical polar, the polarity of pixel voltage VG then opposite (for example being reverse voltage) with pixel voltage VR and VB, therefore the coupling effect between the common electric voltage Array_Vcom of pixel voltage VR, VB and active device substrate can make the direction drift of common electric voltage Array_Vcom toward positive polarity (+), and the coupling effect between pixel voltage VG and the common electric voltage Array_Vcom can make the direction drift of common electric voltage Array_Vcom toward negative polarity (-).Because the coupling effect between pixel voltage VG and the common electric voltage Array_Vcom is lower than the coupling effect between pixel voltage VR, VB and the common electric voltage Array_Vcom, so the position of common electric voltage Array_Vcom will definitely be toward the direction drift of positive polarity (+).Owing to the common electrode equipotential of the common meeting of the common line of active device substrate with the subtend substrate; therefore when the position of common electric voltage Array_Vcom will definitely past positive polarity (+) the direction drift time; the common electric voltage CF_Vcom of subtend substrate is influenced by it also can and the direction drift of past positive polarity (+), and wherein the drift amplitude of common electric voltage CF_Vcom is less than the drift amplitude of common electric voltage Array_Vcom.When the position of common electric voltage CF_Vcom will definitely be toward the direction drift of positive polarity (+), the pressure reduction of pixel voltage VR and VB the two and common electric voltage CF_Vcom just dwindles, and the pressure reduction of pixel voltage VG and common electric voltage CF_Vcom can increase, make the brightness of green sub-pixels G greater than default brightness, but the brightness of red sub-pixel R and blue subpixels B is less than default brightness, therefore cause the shown picture of display panels green partially, cause incorrect white balance.
Except pattern shown in above-mentioned Figure 1A and Fig. 2 A and type of drive, polarity pattern also has a variety of type of drive.For example, the type of drive of use row counter-rotating (column inversion) presents the vertical bar shape pattern of Figure 1A, and use a type of drive of counter-rotating (dot inversion) to present the chequered with black and white gridiron pattern pattern of Fig. 2 A, similarly also meet just before above-mentioned colour cast or the incorrect problem of white balance.Along with the size of display panels increases day by day, the size of pixel and arrangement pitches be more near the cognizable range of size of human eye, the incorrect phenomenon of above-mentioned color offset phenomenon or white balance is apparent more serious in large-sized display panels, therefore display panels is easy to generate tangible Luminance Distribution inequality, and then influences the display quality of display panels.
Existing prior art is (as U.S. Pat 7,623,190 disclosed technology contents) propose to adjust common line configuration on the active device substrate, so that the coupling effect that is produced between the common line on the data line that connects different subpixel and the active device substrate is different.Yet, the coupling capacitance (Cdc_Array) that connects between the common line of data line on active device substrate of each sub-pixel can change, and the coupling capacitance (Cdc_CF) that connects between the common electrode of data line on the subtend substrate of each sub-pixel also can change.The prior art content there is no the phenomenon of mentioning the accurate skew in common electric voltage (CF_Vcom) position that how to improve the subtend substrate, therefore can't effectively solve above-mentioned color offset phenomenon or the incorrect phenomenon of white balance.And in the design of this prior art, the thickness of liquid crystal layer of each sub-pixel above data line is all equal, and connects the data line of each sub-pixel and all equate with coupling capacitance (Cpd) between the pixel electrode.
Summary of the invention
The invention provides a kind of display panels, can effectively improve show uniformity.
The present invention proposes a kind of display panels, comprises active device substrate, subtend substrate and liquid crystal layer.Active device substrate comprise the multi-strip scanning line, with staggered many data lines and a plurality of pixel of sweep trace.Each pixel comprises first sub-pixel, second sub-pixel, the 3rd sub-pixel at least, and wherein first sub-pixel in each pixel, second sub-pixel and the 3rd sub-pixel electrically connect with the different pieces of information line respectively, but electrically connects with same sweep trace.The subtend substrate is configured in the active device substrate top, the subtend substrate has common electrode, and the coupling capacitance (Cdc1) between the data line that wherein connects second sub-pixel and the common electrode is greater than data line that is connected the first, the 3rd sub-pixel and the coupling capacitance between the common electrode (Cdc2).Liquid crystal layer is configured between active device substrate and the subtend substrate.
The present invention proposes a kind of display panels in addition, comprises active device substrate, subtend substrate and liquid crystal layer.Active device substrate comprise the multi-strip scanning line, with staggered many data lines and a plurality of pixel of sweep trace.Each pixel comprises first sub-pixel, second sub-pixel, the 3rd sub-pixel at least, the polarity of first sub-pixel is opposite with the polarity of second sub-pixel, and the polarity of first sub-pixel is identical with the polarity of the 3rd sub-pixel, wherein first sub-pixel in each pixel, second sub-pixel and the 3rd sub-pixel electrically connect with the different pieces of information line respectively, but electrically connect with same sweep trace.The subtend substrate is configured in the active device substrate top, the subtend substrate has common electrode, and the coupling capacitance (Cdc1) between the data line that wherein connects second sub-pixel and the common electrode is greater than data line that is connected the first, the 3rd sub-pixel and the coupling capacitance between the common electrode (Cdc2).Liquid crystal layer is configured between active device substrate and the subtend substrate.
In one embodiment of this invention, the first above-mentioned sub-pixel is a red sub-pixel, and second sub-pixel is a green sub-pixels, and the 3rd sub-pixel is a blue subpixels.
In one embodiment of this invention, above-mentioned active device substrate also comprises bed course, wherein bed course is configured in the below of the segment data line that is connected with second sub-pixel, and the distance (d1) between the segment data line that connects second sub-pixel and the common electrode is less than data line that is connected the first, the 3rd sub-pixel and the distance between the common electrode (d2).
In one embodiment of this invention, the material of above-mentioned bed course is identical with the material of sweep trace.
In one embodiment of this invention, the material of above-mentioned bed course comprises silicon nitride or polysilicon.
In one embodiment of this invention, above-mentioned active device substrate also comprises conductive pattern, wherein segment data line that is connected with second sub-pixel and conductive pattern electrically connect, and be positioned at conductive pattern below, and the distance between conductive pattern and the common electrode (d1 ') is less than the distance between each data line and the common electrode (d2 ').
The present invention proposes a kind of display panels again, and it comprises active device substrate, subtend substrate and liquid crystal layer.Active device substrate comprise the multi-strip scanning line, with staggered many data lines and a plurality of pixel of sweep trace.Each pixel comprises first sub-pixel and second sub-pixel at least, and wherein first sub-pixel in each pixel and second sub-pixel electrically connect with the different pieces of information line respectively, but electrically connects with same sweep trace.The subtend substrate is configured in the active device substrate top, and the subtend substrate has common electrode.Coupling effect between first sub-pixel and the common electrode is greater than the coupling effect between second sub-pixel and the common electrode.Coupling capacitance (Cdc1) between the data line that connects second sub-pixel and the common electrode is greater than the coupling capacitance between data line that is connected first sub-pixel and the common electrode (Cdc2).Liquid crystal layer is configured between active device substrate and the subtend substrate.
In one embodiment of this invention, above-mentioned active device substrate also comprises bed course, wherein bed course is configured in the below of the segment data line that is connected with second sub-pixel, and the distance (d1) between the segment data line that connects second sub-pixel and the common electrode is less than the distance between data line that is connected first sub-pixel and the common electrode (d2).
In one embodiment of this invention, the material of above-mentioned bed course is identical with the material of sweep trace.
In one embodiment of this invention, the material of above-mentioned bed course comprises silicon nitride or polysilicon.
In one embodiment of this invention, above-mentioned active device substrate also comprises conductive pattern, wherein segment data line that is connected with second sub-pixel and conductive pattern electrically connect, and be positioned at conductive pattern below, and the distance between conductive pattern and the common electrode (d1 ') is less than the distance between each data line and the common electrode (d2 ').
Based on above-mentioned, the embodiment of the invention is by making coupling capacitance (Cdc1) between the data line that connects second sub-pixel and the subtend substrate common electrode greater than the coupling capacitance (Cdc2) between data line that is connected the first, the 3rd sub-pixel and the subtend substrate common electrode, thereby the subtend substrate common electric voltage (CF_Vcom) of compensating offset, can help to improve the brightness uniformity of each sub-pixel, and avoid producing color offset phenomenon.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
Description of drawings
Figure 1A and Fig. 2 A show the check patterns of display panels respectively;
Figure 1B and Fig. 2 B then are respectively the operation signal waveform synoptic diagram of each color sub-pixel of Figure 1A and Fig. 2 A;
Fig. 3 looks synoptic diagram on the part according to a kind of active device substrate of the first embodiment of the present invention;
Fig. 4 is the diagrammatic cross-section along the line segment I-I ' of Fig. 3;
Fig. 5 A is the schematic equivalent circuit according to sub-pixel in a kind of active device substrate of one embodiment of the invention;
Fig. 5 B is the operation signal waveform synoptic diagram of each sub-pixel in the pixel;
Fig. 6 and Fig. 7 are respectively the cut-away section synoptic diagram according to a kind of active device substrate of second, third embodiment of the present invention;
Fig. 8 is the cut-away section synoptic diagram according to a kind of active device substrate of the fourth embodiment of the present invention;
Fig. 9 and Figure 10 are respectively the cut-away section synoptic diagram according to a kind of active device substrate of the 5th, the 6th embodiment of the present invention.
The main element symbol description
300,600,700,800,900,1000: display panels
302,602,702,802,902,1002: active device substrate
304,604,704,904,1004: the subtend substrate
306: liquid crystal layer
308: sweep trace
310: data line
312: pixel
312a: first sub-pixel
312b: second sub-pixel
312c: the 3rd sub-pixel
314: active member
316: pixel electrode
318, A_COM: common line
320, C_COM: common electrode
322: bed course
324: the lock insulation course
804: conductive pattern
806: protective seam
BM: black matrix
Cdc, Cdc_A, Cdc1, Cdc2, Cpd1, Cpd2: coupling capacitance
CF: colored filter
Cst: storage capacitors
D1, d2, d1 ', d2 ': distance
DL: data line
P: pixel cell
R, G, B: sub-pixel
SL: sweep trace
Array_Vcom, CF_Vcom: common electric voltage
VDL, VGL: signal
VR, VG, VB: pixel voltage
Embodiment
Next, further embodiments of the invention are described in the mode of top view and sectional view.Fig. 3 looks synoptic diagram on the part according to a kind of active device substrate of the first embodiment of the present invention.Fig. 4 is the diagrammatic cross-section along the line segment I-I ' of Fig. 3.In Fig. 3, omit subtend substrate and liquid crystal layer for convenience of description, yet it is not in order to limit scope of the present invention.
Please be simultaneously with reference to Fig. 3 and Fig. 4, display panels 300 comprises active device substrate 302, subtend substrate 304 and liquid crystal layer 306.Subtend substrate 304 is configured in active device substrate 302 tops.Liquid crystal layer 306 is configured between active device substrate 302 and the subtend substrate 304.
Active device substrate 302 comprise multi-strip scanning line 308, with staggered many data lines 310 and a plurality of pixel 312 of sweep trace 308.Each pixel 312 comprises the first sub-pixel 312a, the second sub-pixel 312b, the 3rd sub-pixel 312c at least.The first sub-pixel 312a, the second sub-pixel 312b and the 3rd sub-pixel 312c electrically connect with corresponding scanning line 308 and data line 310 respectively, and in order to transmit signal to each sub-pixel.The first sub-pixel 312a in each pixel 312, the second sub-pixel 312b and the 3rd sub-pixel 312c electrically connect with different pieces of information line 310 respectively, but electrically connect with same sweep trace 308.
In detail, sweep trace 308 intersects with data line 310 respectively, and marks off a plurality of subpixel area on active device substrate 302.Active device substrate 302 in each subpixel area also has active member 314, pixel electrode 316 and common line 318.Active member 314 is coupled to corresponding scanning line 308 and data line 310, and the first sub-pixel 312a, the second sub-pixel 312b, the 3rd sub-pixel 312c are coupled to corresponding active member 314 respectively.Common line 318 is positioned at pixel electrode 316 belows, and constitutes storage capacitors Cst (being indicated in Fig. 5 A) with pixel electrode 316, to keep the display quality of pixel electrode 316.
In the present embodiment, by the arrangement that changes colored filter CF different colours in the subtend substrate 304, can make pixel 312 comprise that many present the first sub-pixel 312a of first look, many second sub-pixel 312b that present second look and many 3rd sub-pixel 312c that present the 3rd look, and be staggered in regular turn at the first sub-pixel 312a, the second sub-pixel 312b and the 3rd sub-pixel 312c of each row.In one embodiment, the second sub-pixel 312b is between the first sub-pixel 312a and the 3rd sub-pixel 312c.On the practice,, select trichromatic sub-pixel usually for use in order to reach the effect of full-color demonstration.In detail, the first above-mentioned sub-pixel 312a is red sub-pixel (R), and the second sub-pixel 312b is green sub-pixels (G), and the 3rd sub-pixel 312c is blue subpixels (B), but the present invention is not as limit.Certainly, in other embodiments, the second sub-pixel 312b also can be between the first sub-pixel 312a and the 3rd sub-pixel 312c, but be positioned at the either side of the first sub-pixel 312a or the 3rd sub-pixel 312c.
In detail, when the type of drive that sees through row counter-rotating (column inversion) drives display panels 300, at odd number bar data line 310 inputs first polar signal, and at even number bar data line 310 inputs second polar signal.Therefore, when sweep trace 308 was from top to bottom opened in regular turn, each data line 310 provided different data voltage to input in the corresponding sub-pixel in regular turn.For convenience of description, the polarity of representing this place's voltage level with symbol "+" and symbol "-".As Fig. 3 is example, is positive polarity (+), negative polarity (-), positive polarity (+) with the first sub-pixel 312a of delegation, with the second sub-pixel 312b of delegation in regular turn with the 3rd sub-pixel 312c with delegation, then is negative polarity (-), positive polarity (+), negative polarity (-) in regular turn at the first sub-pixel 312a, the second sub-pixel 312b and the 3rd sub-pixel 312c adjacent to the next line of positive polarity (+) the 3rd sub-pixel 312c.
Certainly, in another embodiment, the type of drive that also can see through some counter-rotating (dot inversion) drives display panels 300.Promptly, with the first sub-pixel 312a of delegation be in regular turn positive polarity (+), negative polarity (-), positive polarity (+), negative polarity (-) ... the second sub-pixel 312b of next line be in regular turn negative polarity (-), positive polarity (+), negative polarity (-), positive polarity (+) ..., again the 3rd sub-pixel 312c of next line be in regular turn positive polarity (+), negative polarity (-), positive polarity (+), negative polarity (-) ...As long as make the polarity of the first adjacent sub-pixel 312a opposite with the polarity of the second sub-pixel 312b, and identical the getting final product of polarity of the polarity of the first sub-pixel 312a and the 3rd sub-pixel 312c, the present invention does not do special qualification at this.
What deserves to be mentioned is that active device substrate 302 also comprises bed course 322, wherein bed course 322 is configured in the below that is connected the segment data line 310 of 312b with second sub-pixel.Bed course 322 for example is to be configured in lock insulation course 324 belows, and makes electrical isolation between the segment data line 310 that is connected 312b with second sub-pixel and the bed course 322.That is to say, bed course 322 will be connected segment data line 310 bed hedgehoppings of 312b with second sub-pixel so that between the segment data line 310 that connects the second sub-pixel 312b and the common electrode 320 apart from d1 less than between data line 310 that is connected the first sub-pixel 312a, the 3rd sub-pixel 312c and the common electrode 320 apart from d2.In other words, liquid crystal layer 306 thickness that connect on the data line 310 of the second sub-pixel 312b can be less than liquid crystal layer 306 thickness on the data line 310 that connects the first sub-pixel 312a, the 3rd sub-pixel 312c.In one embodiment, the material of bed course 322 can be identical with the material of sweep trace 308, and promptly bed course 322 and sweep trace 308 are for example by forming via patterning with one deck metal level.In another embodiment, the material of bed course 322 also can be inequality with the material of sweep trace 308, and the material of bed course 322 for example is the storehouse of organic dielectric materials, Inorganic Dielectric Material, semiconductor material or other suitable material or above-mentioned wantonly two materials.
Connect between the data line 310 of the second sub-pixel 312b and the common electrode 320 and have coupling capacitance Cdc1, have coupling capacitance Cdc2 and connect between the data line 310 of the first sub-pixel 312a, the 3rd sub-pixel 312c and the common electrode 320.Because bed course 322 can will be connected segment data line 310 bed hedgehoppings of 312b with second sub-pixel, promptly further between the data line 310 that connects the second sub-pixel 312b and the common electrode 320 apart from d1, therefore can increase the data line 310 that is connected with the second sub-pixel 312b and the coupling capacitance Cdc1 between the common electrode 320, and then make coupling capacitance Cdc1 greater than coupling capacitance Cdc2.
In detail, Fig. 5 A is the schematic equivalent circuit according to one of them sub-pixel in a kind of active device substrate of one embodiment of the invention.Fig. 5 B is the operation signal waveform synoptic diagram of each sub-pixel in the pixel.Shown in Fig. 5 A, in each sub-pixel, coupling capacitance Cdc_A can be produced between the common line A_COM on the data line DL of connexon pixel and the active device substrate, and coupling capacitance Cdc can be produced between the data line DL of connexon pixel and the common electrode C_COM in the subtend substrate.Present embodiment promptly is by adjusting coupling capacitance Cdc, so that the pressure reduction between the common electric voltage (CF_Vcom) of each sub-pixel and subtend substrate can equate in fact.
With the above-mentioned first sub-pixel 312a is that positive polarity (+), the second sub-pixel 312b are that negative polarity (-) and the 3rd sub-pixel 312c are that positive polarity (+) is that example illustrates.Connecting the coupling effect (coupling effect) that produces between data line 310 and the common line 318 of active device substrate of the first sub-pixel 312a, the 3rd sub-pixel 312c of positive polarity (+) all can make the common electric voltage (Array_Vcom) of common line 318 transmission that makes of active device substrate be offset toward the direction of positive polarity (+).And connect the coupling effect that produces between data line 310 and the common line 318 of the second sub-pixel 312b of negative polarity (-) common electric voltage (Array_Vcom) of common line 318 transmission that makes of active device substrate is offset toward the direction of negative polarity (-).Be lower than the data line 310 that is connected the first sub-pixel 312a, the 3rd sub-pixel 312c and the coupling effect between the common line 318 of active device substrate owing to connect the data line 310 of the second sub-pixel 312b and coupling effect between the common line 318 of active device substrate, the accurate direction drift toward positive polarity (+) in common electric voltage (CF_Vcom) position that therefore can cause the common electrode 320 of the common electric voltage (Array_Vcom) of common line 318 transmission that makes of active device substrate and subtend substrate to be transmitted is shown in Fig. 5 B.
Present embodiment makes coupling capacitance Cdc1 between the data line 310 that connects the second sub-pixel 312b and the subtend substrate common electrode 320 greater than the coupling capacitance Cdc2 between data line 310 that is connected the first sub-pixel 312a, the 3rd sub-pixel 312c and the subtend substrate common electrode 320, with the problem of the common electric voltage (CF_Vcom) that improves subtend substrate skew, shown in the label 502 of Fig. 5 B.Thus, can make the first sub-pixel 312a, the second sub-pixel 312b and the 3rd sub-pixel 312c present default brightness respectively, therefore can help to improve show uniformity, and obtain good display quality.
The pattern of bed course 322, area also are not limited to Fig. 3 and illustrate, and can do different variations according to the actual requirements, as long as can increase the data line 310 of the connection second sub-pixel 312b and the coupling capacitance Cdc1 between the common electrode 320.
In addition, may change the segment data line 310 of the connection second sub-pixel 312b and the distance between the pixel electrode 316 at configuration bed course 322 below the segment data line 310, and influence connects the data line 310 of the second sub-pixel 312b and the coupling capacitance Cpd1 between the pixel electrode 316.Therefore, present embodiment can further change the configuration of pixel electrode 316, finely tune the distance of the data line 310 that connects the second sub-pixel 312b and pixel electrode 316, make that connecting the data line 310 of the second sub-pixel 312b and coupling capacitance Cpd1 between the pixel electrode 316 can be equal to the data line 310 that is connected the first sub-pixel 312a, the 3rd sub-pixel 312c and the coupling capacitance Cpd2 between the pixel electrode 316 in fact.
Fig. 6 and Fig. 7 are respectively the cut-away section synoptic diagram according to a kind of active device substrate of second, third embodiment of the present invention.It is noted that in Fig. 6 and Fig. 7, the member identical with Fig. 4 then uses identical label and omit its explanation.
The main member of composition diagram 6, display panels 600,700 shown in Figure 7 is roughly the same with the main member of forming display panels 300 shown in Figure 4, yet difference between the two mainly is to dispose at the member at active device substrate and subtend substrate.
Please refer to Fig. 6, in the display panels 600 of second embodiment, active device substrate 602 can also be that colored filter CF directly is incorporated into COA (Color Filter On Array) substrate on the active layers, and 316 of pixel electrodes are configured on the colored filter CF.At this moment, subtend substrate 604 comprises common electrode 320 and black matrix B M, and the configuration of omitting colored filter CF.In this embodiment, display panels 600 is that the subtend substrate that COA substrate and another as active device substrate 602 do not possess colored filter CF is stood for 604 groups, and between two substrates, insert liquid crystal layer 306, thereby be difficult for causing bit errors, and aperture ratio of pixels is also higher.
Please refer to Fig. 7, in the display panels 700 of the 3rd embodiment, active device substrate 702 can also be that colored filter CF and black matrix B M directly are incorporated into BOA (Blackmatrix on Array) substrate on the active layers, and 316 of pixel electrodes are configured on the colored filter CF.At this moment, subtend substrate 604 comprises common electrode 320, and omits the configuration of colored filter CF and black matrix B M.In this embodiment, display panels 700 is that BOA substrate and another 704 groups of subtend substrate that do not possess colored filter CF and black matrix B M as active device substrate 702 is upright, and between two substrates, insert liquid crystal layer 306, thereby be difficult for causing bit errors, and aperture ratio of pixels is also higher.
Hold above-mentioned, in the embodiment of Figure 6 and Figure 7, also can further change the configuration of pixel electrode 316, make connect the data line 310 of the second sub-pixel 312b and coupling capacitance Cpd1 between the pixel electrode 316 and can be equal to the data line 310 that is connected the first sub-pixel 312a, the 3rd sub-pixel 312c and the coupling capacitance Cpd2 between the pixel electrode 316 in fact.
In other words, the present invention does not limit the kenel of active device substrate and subtend substrate, and under possible situation, active device substrate and subtend substrate can be the aforementioned several kenel or the combination of other existing kenel.
Certainly, disposing below the segment data line 310 that is connected 312b with second sub-pixel the bed course 322 except above-mentioned, display panels of the present invention still has other and implements kenel, and can improve the skew of the common electric voltage (CF_Vcom) of subtend substrate equally, and the present invention is not as limit.Fig. 8 is the cut-away section synoptic diagram according to a kind of active device substrate of the fourth embodiment of the present invention.It is noted that in Fig. 8, the member identical with Fig. 4 then uses identical label and omit its explanation.
Please refer to Fig. 8, in the 4th embodiment, the main member of forming display panels 800 shown in Figure 8 is roughly the same with the main member of forming the display panels 300 shown in 4, yet difference between the two mainly is, utilizes different configuration modes to reach to make coupling capacitance Cdc1 between the data line that connects second sub-pixel and the common electrode greater than data line that is connected the first, the 3rd sub-pixel and the coupling capacitance Cdc2 between the common electrode.
In display panels 800, active device substrate 802 also comprises conductive pattern 804.The segment data line 310 that is connected 312b with second sub-pixel for example is to be positioned at conductive pattern 804 belows, and electrically connects with conductive pattern 804.In detail, the protective seam (or being called dielectric layer) 806 that is positioned at segment data line 310 tops that are connected 312b with second sub-pixel is formed with hole, thereby conductive pattern 804 can electrically connect by the segment data line 310 of hole and protective seam 806 belows.In one embodiment, the material of conductive pattern 804 can be identical in fact with the material of pixel electrode 316, it for example is indium tin oxide (Indium-Tin Oxide, ITO), indium-zinc oxide (indium zinc oxide, IZO), zinc paste (zincoxide, IZO), aluminium zinc oxide (aluminum zinc oxide, AZO), cadmium zinc oxide (cadmium zincoxide, CZO), indium germanium zinc oxide (indium gallium zinc oxide, IGZO) or other suitable material or above-mentioned combination.That is to say, conductive pattern 804 can utilize with one deck transparent conductive material with pixel electrode 316 and form, and make conductive pattern 804 and pixel electrode 316 separated from one another by patterning, conductive pattern 804 and pixel electrode 316 are electrically insulated each other.In other embodiments, if the pixel electrode of second sub-pixel is to be formed by reflecting material (for example: gold, silver, copper, aluminium, molybdenum, titanium, tantalum, tin or other suitable material or above-mentioned alloy or above-mentioned oxide or above-mentioned oxides of nitrogen or above-mentioned combination) institute, then the material of conductive pattern is a reflecting material just; Or be if the pixel electrode of second sub-pixel is formed by reflecting material and transparent conductive material, then the material of conductive pattern just requires to adopt reflecting material, transparent conductive material or above-mentioned combination according to the resistance that design is gone up for data line.
This explanation be, be configured between the conductive pattern 804 of segment data line 310 tops and the common electrode 320 apart from d1 ' less than between each data line 310 and the common electrode 320 apart from d2 '.In other words, liquid crystal layer 306 thickness that connect on the data line 310 of the second sub-pixel 312b can be less than liquid crystal layer 306 thickness on the data line 310 that connects the first sub-pixel 312a, the 3rd sub-pixel 312c.Because the current potential of conductive pattern 804 can be same as the current potential that is connected the data line 310 of 312b with second sub-pixel, therefore by further between conductive pattern 804 and the subtend substrate common electrode 320 apart from d1 ', can increase the data line 310 of the connection second sub-pixel 312b and the coupling capacitance Cdc1 between the subtend substrate common electrode 320, and make coupling capacitance Cdc1 greater than data line 310 that connects the first sub-pixel 312a, the 3rd sub-pixel 312c and the coupling capacitance Cdc2 between the common electrode 320.In addition, the layout patterns of conductive pattern 804, area can be done different variations according to the actual requirements, as long as can increase the coupling capacitance Cdc1 between the common electrode 320 of the data line 310 that connects the second sub-pixel 312b and subtend substrate.
In addition, configuration conductive pattern 804 also may influence the data line 310 of the connection second sub-pixel 312b and the coupling capacitance Cpd1 between the pixel electrode 316 on the segment data line 310 that is connected 312b with second sub-pixel.Therefore, also the configuration of pixel electrode 316 can be further changed, the data line 310 that is connected the first sub-pixel 312a, the 3rd sub-pixel 312c and the coupling capacitance Cpd2 between the pixel electrode 316 can be equal in fact so that connect the data line 310 of the second sub-pixel 312b and coupling capacitance Cpd1 between the pixel electrode 316.
Similarly, the present invention does not limit the kenel of active device substrate and subtend substrate.That is to say that active device substrate among Fig. 8 and subtend substrate also can be transformed into the member configuration as above-mentioned Fig. 6 and Fig. 7.
Fig. 9 and Figure 10 are respectively the cut-away section synoptic diagram according to a kind of active device substrate of the 5th, the 6th embodiment of the present invention.It is noted that in Fig. 9 and Figure 10, the member identical with Fig. 4 to Fig. 8 then uses identical label and omit its explanation.
The main member of composition diagram 9, display panels 900,1000 shown in Figure 10 is roughly the same with the main member of forming display panels 800 shown in Figure 8, disposes yet difference between the two mainly is the member that is active device substrate and subtend substrate.
As shown in Figure 9, in the display panels 900, active device substrate 902 for example is to be similar to the described COA substrate of Fig. 6.Subtend substrate 904 comprises common electrode 320 and black matrix B M, and the configuration of omitting colored filter CF.As shown in figure 10, in the display panels 1000, active device substrate 1002 for example is to be similar to the described BOA substrate of Fig. 7; And subtend substrate 1004 comprises common electrode 320, and omits the configuration of colored filter CF and black matrix B M.In display panels 1000, the conductive pattern 804 that is disposed at segment data line 310 tops for example is the below that is configured in black matrix B M.Know those skilled in the art when knowing its application and variation, so do not repeat them here according to previous embodiment.
Similarly, in Fig. 9 and embodiment shown in Figure 10, also the configuration of pixel electrode 316 can be further changed, the data line 310 that is connected the first sub-pixel 312a, the 3rd sub-pixel 312c and the coupling capacitance Cpd2 between the pixel electrode 316 can be equal in fact so that connect the data line 310 of the second sub-pixel 312b and coupling capacitance Cpd1 between the pixel electrode 316.
In addition, the foregoing description and graphic in, mainly be to comprise that with each pixel three sub-pixels are that example describes, yet the present invention is not limited to this.In another embodiment, each pixel comprises two sub-pixels at least, and wherein the coupling effect between first sub-pixel and the common electrode is greater than the coupling effect between second sub-pixel and the common electrode.Therefore, can be by the configuration of the foregoing description, coupling capacitance (Cdc1) between the data line that make to connect the second more weak sub-pixel of coupling and the common electrode is greater than the data line and the coupling capacitance between the common electrode (Cdc2) that are connected the first stronger sub-pixel of coupling, the problem that is offset with the common electric voltage (CF_Vcom) that improves the subtend substrate.
Certainly, in other embodiments, each pixel can comprise N sub-pixel, and wherein N is the positive integer greater than 3.When each pixel comprises N sub-pixel, similarly can adjust the coupling capacitance (Cdc) between the common electrode in the data line that connects each sub-pixel and the subtend substrate, so that the pressure reduction between the common electric voltage (CF_Vcom) of each sub-pixel and subtend substrate can equate in fact by the design conditions of the foregoing description.Have in this technical field and to know the knowledgeable usually when can knowing its variation and application, so do not repeat them here by previous embodiment.
Moreover the pixel of previous embodiment is all with three sub-pixels or two sub-pixels, and in the above-mentioned sub-pixel, the data line of one of them sub-pixel has design of the present invention, but is not limited thereto.In other embodiments, wherein two the data line of three sub-pixels has design of the present invention in the aforementioned embodiment.If pixel is four, five, six or the like, if the coupling effect between arbitrary sub-pixel and the common electrode is greater than the coupling effect between other sub-pixel and the common electrode.Therefore, can be by the configuration of the foregoing description, coupling capacitance (Cdc1) between the data line that make to connect the more weak sub-pixel of coupling and the common electrode is greater than the data line and the coupling capacitance between the common electrode (Cdc2) that are connected the stronger sub-pixel of coupling, the problem that is offset with the common electric voltage (CF_Vcom) that improves the subtend substrate.
In sum, display panels of the present invention is by making coupling capacitance (Cdc1) between the data line that connects some sub-pixel and the common electrode greater than the coupling capacitance between data line that is connected other sub-pixel and the common electrode (Cdc2).Therefore, display panels is when utilizing some counter-rotating or row inversion driving array of sub-pixels to present chequered with black and white test pattern, the phenomenon of the data line of second sub-pixel and the accurate skew in common electric voltage (C_Vcom) position that the coupling capacitance between the common electrode (Cdc1) is improved the subtend substrate be can connect by increase, and then color offset phenomenon and the incorrect phenomenon of white balance improved.Thus, display panels of the present invention can be avoided the unequal problem of demonstration of prior art.
Though the present invention discloses as above with embodiment; yet it is not in order to limit the present invention; have in the technical field under any and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when doing a little change and retouching, so protection scope of the present invention is as the criterion when looking accompanying the claim person of defining.
Claims (17)
1. a display panels is characterized in that, comprising:
One active device substrate comprises:
The multi-strip scanning line;
Many data lines, staggered with described sweep trace;
A plurality of pixels, each described pixel comprises one first sub-pixel, one second sub-pixel, one the 3rd sub-pixel at least, wherein first sub-pixel, second sub-pixel and the 3rd sub-pixel in each described pixel electrically connects with the different pieces of information line respectively, but electrically connects with same sweep trace;
One subtend substrate, be configured in described active device substrate top, described subtend substrate has a common electrode, and the coupling capacitance (Cdc1) between the data line that wherein connects described second sub-pixel and the described common electrode is greater than the coupling capacitance (Cdc2) between data line that is connected more described the first, the 3rd sub-pixel and the described common electrode; And
One liquid crystal layer is configured between described active device substrate and the described subtend substrate.
2. display panels as claimed in claim 1 is characterized in that, described first sub-pixel is a red sub-pixel, and described second sub-pixel is a green sub-pixels, and described the 3rd sub-pixel is a blue subpixels.
3. display panels as claimed in claim 1, it is characterized in that, described active device substrate also comprises a bed course, wherein said bed course is configured in the below of the segment data line that is connected with described second sub-pixel, and the distance (d1) between the segment data line that connects described second sub-pixel and the described common electrode is less than the distance (d2) between data line that is connected described the first, the 3rd sub-pixel and the described common electrode.
4. display panels as claimed in claim 3 is characterized in that, the material of described bed course is identical with the material of described sweep trace.
5. display panels as claimed in claim 3 is characterized in that the material of described bed course comprises silicon nitride or polysilicon.
6. display panels as claimed in claim 1, it is characterized in that, described active device substrate also comprises a conductive pattern, wherein segment data line that is connected with described second sub-pixel and described conductive pattern electrically connect, and be positioned at described conductive pattern below, and the distance between described conductive pattern and the described common electrode (d1 ') is less than the distance between each described data line and the described common electrode (d2 ').
7. a display panels is characterized in that, comprising:
One active device substrate comprises:
The multi-strip scanning line;
Many data lines, staggered with described sweep trace;
A plurality of pixels, each described pixel comprises one first sub-pixel, one second sub-pixel, one the 3rd sub-pixel at least, the polarity of first sub-pixel is opposite with the polarity of second sub-pixel, and the polarity of first sub-pixel is identical with the polarity of described the 3rd sub-pixel, wherein first sub-pixel, second sub-pixel and the 3rd sub-pixel in each described pixel electrically connects with the different pieces of information line respectively, but electrically connects with same sweep trace;
One subtend substrate, be configured in described active device substrate top, described subtend substrate has a common electrode, and the coupling capacitance (Cdc1) between the data line that wherein connects described second sub-pixel and the described common electrode is greater than the coupling capacitance (Cdc2) between data line that is connected described the first, the 3rd sub-pixel and the described common electrode; And
One liquid crystal layer is configured between described active device substrate and the described subtend substrate.
8. display panels as claimed in claim 7 is characterized in that, described first sub-pixel is a red sub-pixel, and described second sub-pixel is a green sub-pixels, and described the 3rd sub-pixel is a blue subpixels.
9. display panels as claimed in claim 7, it is characterized in that, described active device substrate also comprises a bed course, wherein said bed course is configured in the below of the segment data line that is connected with described second sub-pixel, and the distance (d1) between the segment data line that connects described second sub-pixel and the described common electrode is less than the distance (d2) between data line that is connected described the first, the 3rd sub-pixel and the described common electrode.
10. display panels as claimed in claim 9 is characterized in that, the material of described bed course is identical with the material of described sweep trace.
11. display panels as claimed in claim 9 is characterized in that, the material of described bed course comprises silicon nitride or polysilicon.
12. display panels as claimed in claim 9, it is characterized in that, described active device substrate also comprises a conductive pattern, wherein segment data line that is connected with described second sub-pixel and described conductive pattern electrically connect, and be positioned at described conductive pattern below, and the distance between described conductive pattern and the described common electrode (d1 ') is less than the distance between each described data line and the described common electrode (d2 ').
13. a display panels is characterized in that, comprising:
One active device substrate comprises:
The multi-strip scanning line;
Many data lines, staggered with described sweep trace;
A plurality of pixels, each described pixel comprise one first sub-pixel and one second sub-pixel at least, and wherein first sub-pixel in each described pixel and second sub-pixel electrically connect with the different pieces of information line respectively, but electrically connect with same sweep trace;
One subtend substrate, be configured in described active device substrate top, described subtend substrate has a common electrode, coupling effect between described first sub-pixel and the described common electrode is greater than the coupling effect between described second sub-pixel and the described common electrode, and the coupling capacitance (Cdc1) between the data line that wherein connects described second sub-pixel and the described common electrode is greater than the coupling capacitance (Cdc2) between data line that is connected described first sub-pixel and the described common electrode; And
One liquid crystal layer is configured between described active device substrate and the described subtend substrate.
14. display panels as claimed in claim 13, it is characterized in that, active device substrate also comprises a bed course, wherein said bed course is configured in the below of the segment data line that is connected with described second sub-pixel, and the distance (d1) between the segment data line that connects described second sub-pixel and the described common electrode is less than the distance (d2) between data line that is connected described first sub-pixel and the described common electrode.
15. display panels as claimed in claim 13 is characterized in that, the material of described bed course is identical with the material of described sweep trace.
16. display panels as claimed in claim 13 is characterized in that, the material of described bed course comprises silicon nitride or polysilicon.
17. display panels as claimed in claim 13, it is characterized in that, described active device substrate also comprises a conductive pattern, wherein segment data line that is connected with described second sub-pixel and described conductive pattern electrically connect, and be positioned at described conductive pattern below, and the distance between described conductive pattern and the described common electrode (d1 ') is less than the distance between each described data line and the described common electrode (d2 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010181118A CN101833210A (en) | 2010-05-13 | 2010-05-13 | Liquid crystal display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010181118A CN101833210A (en) | 2010-05-13 | 2010-05-13 | Liquid crystal display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101833210A true CN101833210A (en) | 2010-09-15 |
Family
ID=42717331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010181118A Pending CN101833210A (en) | 2010-05-13 | 2010-05-13 | Liquid crystal display panel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101833210A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402043A (en) * | 2011-11-03 | 2012-04-04 | 深圳市华星光电技术有限公司 | Pixel array and preparing method thereof |
| CN102879961A (en) * | 2012-09-28 | 2013-01-16 | 京东方科技集团股份有限公司 | Display panel and display device |
| WO2014000384A1 (en) * | 2012-06-26 | 2014-01-03 | 北京京东方光电科技有限公司 | Display panel as well as drive method and display device thereof |
| CN105044973A (en) * | 2015-08-27 | 2015-11-11 | 深圳市华星光电技术有限公司 | Coa type liquid crystal display panel |
| CN107179641A (en) * | 2017-06-05 | 2017-09-19 | 深圳市华星光电技术有限公司 | A kind of array base palte and preparation method thereof, liquid crystal display panel |
| CN107240589A (en) * | 2017-06-05 | 2017-10-10 | 深圳市华星光电技术有限公司 | A kind of array base palte and preparation method thereof, liquid crystal display panel |
| WO2020082463A1 (en) * | 2018-10-24 | 2020-04-30 | 惠科股份有限公司 | Display panel, method for manufacturing display panel, and display device |
| CN114530129A (en) * | 2021-10-29 | 2022-05-24 | 滁州惠科光电科技有限公司 | Display panel driving method, display panel driving device and display equipment |
-
2010
- 2010-05-13 CN CN201010181118A patent/CN101833210A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102402043A (en) * | 2011-11-03 | 2012-04-04 | 深圳市华星光电技术有限公司 | Pixel array and preparing method thereof |
| WO2014000384A1 (en) * | 2012-06-26 | 2014-01-03 | 北京京东方光电科技有限公司 | Display panel as well as drive method and display device thereof |
| CN102879961A (en) * | 2012-09-28 | 2013-01-16 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN105044973A (en) * | 2015-08-27 | 2015-11-11 | 深圳市华星光电技术有限公司 | Coa type liquid crystal display panel |
| WO2017031815A1 (en) * | 2015-08-27 | 2017-03-02 | 深圳市华星光电技术有限公司 | Coa type liquid crystal display panel |
| CN105044973B (en) * | 2015-08-27 | 2018-07-10 | 深圳市华星光电技术有限公司 | COA type liquid crystal display panels |
| CN107179641A (en) * | 2017-06-05 | 2017-09-19 | 深圳市华星光电技术有限公司 | A kind of array base palte and preparation method thereof, liquid crystal display panel |
| CN107240589A (en) * | 2017-06-05 | 2017-10-10 | 深圳市华星光电技术有限公司 | A kind of array base palte and preparation method thereof, liquid crystal display panel |
| WO2020082463A1 (en) * | 2018-10-24 | 2020-04-30 | 惠科股份有限公司 | Display panel, method for manufacturing display panel, and display device |
| US11281061B2 (en) | 2018-10-24 | 2022-03-22 | HKC Corporation Limited | Display panel, method for manufacturing display panel, and display device |
| CN114530129A (en) * | 2021-10-29 | 2022-05-24 | 滁州惠科光电科技有限公司 | Display panel driving method, display panel driving device and display equipment |
| CN114530129B (en) * | 2021-10-29 | 2023-06-30 | 滁州惠科光电科技有限公司 | Display panel driving method, display panel driving device and display equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9348188B2 (en) | Liquid crystal display | |
| CN106707648B (en) | A kind of display base plate, display device and its driving method | |
| CN110060650B (en) | Multiplex type liquid crystal display driving circuit | |
| CN101833210A (en) | Liquid crystal display panel | |
| TWI420213B (en) | Liquid crystal display panel | |
| CN106855668B (en) | Dot structure, array substrate and display panel | |
| CN107301853A (en) | Display panel driving method, display panel driving device and display device | |
| US8836903B2 (en) | Liquid crystal display | |
| TW201003622A (en) | Liquid crystal display and driving method thereof | |
| CN105278190B (en) | Liquid crystal display device | |
| JP2007079569A (en) | Liquid crystal display and driving method thereof | |
| CN109872697A (en) | A kind of array substrate, display panel, display device | |
| KR102567648B1 (en) | Liquid crystal display device | |
| KR20090092415A (en) | Display substrate and display device having the same | |
| CN107966835A (en) | Array base palte and liquid crystal display device and driving method | |
| CN110007806A (en) | Display device | |
| US20180341160A1 (en) | Display device and display panel with novel pixel and data line configurations | |
| TW200937087A (en) | Multi domain vertical alignment substrate and display device thereof | |
| US8766889B2 (en) | Liquid crystal display and driving method thereof | |
| TWI572963B (en) | Display panel | |
| US11488550B2 (en) | Display panel and display apparatus for improving color cast based on design space and freedom | |
| US20070109329A1 (en) | Display device | |
| CN107678214A (en) | Array base palte and liquid crystal display device and driving method | |
| CN100480795C (en) | Liquid crystal display panel and array substrate for liquid crystal display | |
| US11475842B2 (en) | Display device and driving method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20100915 |