CN101425274A - Liquid crystal display device and driving method thereof - Google Patents
Liquid crystal display device and driving method thereof Download PDFInfo
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- CN101425274A CN101425274A CN 200710185173 CN200710185173A CN101425274A CN 101425274 A CN101425274 A CN 101425274A CN 200710185173 CN200710185173 CN 200710185173 CN 200710185173 A CN200710185173 A CN 200710185173A CN 101425274 A CN101425274 A CN 101425274A
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 187
- 238000000034 method Methods 0.000 title claims abstract description 31
- 239000000758 substrate Substances 0.000 claims description 58
- 230000007613 environmental effect Effects 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 3
- 230000000149 penetrating effect Effects 0.000 abstract description 12
- 230000000007 visual effect Effects 0.000 description 22
- 238000005192 partition Methods 0.000 description 15
- 238000010586 diagram Methods 0.000 description 14
- 239000010408 film Substances 0.000 description 11
- 239000013078 crystal Substances 0.000 description 9
- 208000008918 voyeurism Diseases 0.000 description 9
- 239000011521 glass Substances 0.000 description 7
- 230000010287 polarization Effects 0.000 description 3
- 238000000059 patterning Methods 0.000 description 2
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
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Abstract
A driving method of a liquid crystal display device is used for driving the liquid crystal display device. Each pixel of the liquid crystal display device comprises a first sub-pixel and a second sub-pixel, and the tilting direction of liquid crystal molecules in the second sub-pixel is parallel to the penetrating axis of one polarizer in a bright state. The driving method of the liquid crystal display device comprises the steps of receiving a selection signal and determining the display mode of the liquid crystal display device. When the liquid crystal display device is in a normal display mode, the second sub-pixel is in a dark state. When the liquid crystal display device is in a narrow viewing angle display mode, a part of the second sub-pixels which are selected and driven to be in a bright state.
Description
Technical field
The present invention relates to a kind of liquid crystal indicator and driving method thereof, and be particularly related to a kind of liquid crystal indicator and driving method thereof of being peeped of preventing.
Background technology
Multimedia society significantly improves, and is indebted to the breakthrough progress of semiconductor element or display device mostly.With regard to display device, have that high image quality, space utilization efficient are good, (Thin FilmTransistor Liquid Crystal Display TFT-LCD) becomes the main flow in market to the thin-film transistor LCD device of low consumpting power, advantageous characteristic such as radiationless gradually.
The consumption market is a tool stylishness and light, thin, short, little to be easy to carry about with one for the appearance requirement of liquid crystal indicator.In addition, the performance requirement for liquid crystal indicator is towards characteristics such as height contrast (high contrast ratio), no GTG counter-rotating (no gray scale inversion), low colour cast (low color shift), high brightness (high luminance), high color richness, high color saturation, rapid reaction and wide viewing angles.The technology that can reach the wide viewing angle requirement has at present comprised stable twisted nematic (twisted nematic, TN) liquid crystal adds view film (wideviewing film), copline suitching type (in-plane switching, IPS) liquid crystal indicator, limit suitching type (fringe field switching) liquid crystal indicator and multi-domain perpendicular alignment-type (multi-domain vertically alignment, MVA) liquid crystal indicator etc.
With the liquid crystal indicator of wide viewing angle, the user faces in the dead ahead of liquid crystal indicator or at oblique the place ahead of liquid crystal indicator stravismus liquid crystal indicator, can see the image that liquid crystal indicator is shown.Yet, because being easy to carry of liquid crystal indicator, thus the user usually the transport fluid crystal device go out, and use continually in public.When the user reads private letter or data in public places,, therefore have private data with being difficult to avoid and be subjected to other people and spy on and the possibility of leaking but because the wide viewing angle characteristic of liquid crystal indicator.
Figure 1A is conventional a kind of anti-synoptic diagram of peeping the liquid crystal indicator of function that has.Show that as Figure 1A conventional liquid crystal indicator 10 disposes visual angle switching device 12 below its display panels 11, this visual angle switching device comprises two glass substrate 12a, 12b and liquid crystal layer 12c.When not opening visual angle switching device 12, there is no voltage difference between two glass substrate 12a, the 12b, this moment, the major axis of liquid crystal molecule of liquid crystal layer 12c can be parallel to the surface of glass substrate 12a, 12b, and faced or the people of side-looking liquid crystal indicator 10 can see the image that liquid crystal indicator 10 is shown.After opening visual angle switching device 12, have voltage difference between two glass substrate 12a, the 12c, make the liquid crystal deflecting element of liquid crystal layer 12c.At this moment, the people who faces liquid crystal indicator 10 can't be affected, still can see the normal picture that liquid crystal indicator 10 is shown, but the people of side-looking liquid crystal indicator 100 can be affected, what see is not to be the normal picture that liquid crystal indicator 10 shows.
Yet this kind liquid crystal indicator 10 is than the anti-how a pair of glass substrate of liquid crystal indicator of peeping function of general not tool, so cost is higher.In addition, the normal picture deepening that visual angle switching device 12 only can make liquid crystal indicator 10 show, the people of side-looking still can distinguish the profile of general image.
Figure 1B is the anti-synoptic diagram of peeping the liquid crystal indicator of function for conventional another kind has.Show that as Figure 1B this kind liquid crystal indicator is to make each pixel 20 on the display panels have two different sub-pixels 22 of lqiuid crystal molecule tipping direction and 24.Cause light leakage phenomena by the toppling over of liquid crystal molecule in the sub-pixel 24, can upset the image that liquid crystal indicator shows, allow the people of side-looking liquid crystal indicator can't watch correct image.Yet the light leak that sub-pixel 24 causes only can allow image brighter, so the people of side-looking liquid crystal indicator still can distinguish the overall profile of image.
Another has the anti-synoptic diagram of peeping the liquid crystal indicator of function to Fig. 1 C for routine.Show that as Fig. 1 C the pixel 30 of this kind liquid crystal indicator is to utilize the thickness of liquid crystal layer difference of two sub-pixels 32,34, make the phase-delay quantity of sub-pixel 32 can be bigger than the phase-delay quantity of sub-pixel 34.Cause light leakage phenomena by the toppling over of liquid crystal molecule in the sub-pixel 34, and then what allow the people of side-looking liquid crystal indicator watches is shinny image.Yet the technology of this kind liquid crystal indicator is comparatively complicated, and the people of side-looking liquid crystal indicator still can distinguish the overall profile of image.
Summary of the invention
The invention provides a kind of driving method of liquid crystal indicator, it can limit the angle of visibility scope of liquid crystal indicator, leaks secret to prevent other people from peeping.
The invention provides a kind of have prevent that other people from peeping and leak the liquid crystal indicator of function of secret.
The present invention proposes a kind of driving method of liquid crystal indicator, in order to drive liquid crystal indicator.Wherein, liquid crystal indicator has a plurality of pixels, and each pixel comprises first sub-pixel and second sub-pixel, and the toppling direction of a plurality of liquid crystal molecules when bright attitude that is positioned at second sub-pixel can be parallel to two polaroids penetrating shaft one of them.The driving method of this liquid crystal indicator comprises receive to select signal, and the decision liquid crystal indicator be in narrow visual angle display mode and normal displaying mode one of them.When liquid crystal indicator is in normal displaying mode, then when driving first sub-pixel and showing normal pictures, making second sub-pixel is dark attitude.When liquid crystal indicator is in narrow visual angle display mode, then when driving first sub-pixel and showing normal pictures, select second sub-pixel partly, and to drive selecteed part second sub-pixel be bright attitude.
In one embodiment of this invention, select signal to be by user's input, to be additional in the picture signal, to produce or to produce according to the environmental parameter sensing result according to the power supply state of this liquid crystal indicator.
In one embodiment of this invention, selecting also, the method for second sub-pixel of driving part comprises the following steps.At first, liquid crystal indicator is divided into staggered a plurality of first district and a plurality of second district.Then, driving second sub-pixel that is positioned at second district is bright attitude.
In one embodiment of this invention, the method for dividing liquid crystal indicator comprises and makes first district and second district be arranged as the gridiron pattern pattern.
In one embodiment of this invention, select the method for part second sub-pixel to comprise the mean flow rate of calculating first sub-pixel adjacent, and when mean flow rate is lower than a default value, then select this second sub-pixel with each second sub-pixel.In addition, default value can be 1/10th of high-high brightness that first sub-pixel can show.
In one embodiment of this invention, when liquid crystal indicator is in narrow visual angle display mode, driving selecteed part second sub-pixel is bright attitude, and the shown brightness of driven second sub-pixel is same as the shown high-high brightness of driven first sub-pixel.
The present invention proposes a kind of liquid crystal indicator, and it comprises active elements array substrates, subtend substrate, liquid crystal layer and two polaroids.Active elements array substrates comprises substrate and is configured in the multi-strip scanning line on the substrate, many data lines and a plurality of pixel, and each pixel comprises first sub-pixel and second sub-pixel, each first sub-pixel comprises first active component and first pixel electrode that is electrical connected, and each second sub-pixel comprises second pixel electrode at least, and at least one second active component configuration active elements array substrates, this second active component also is electrical connected with second pixel electrode.The subtend substrate is disposed at the active elements array substrates top.Liquid crystal layer is disposed between active elements array substrates and the subtend substrate, and liquid crystal layer has a plurality of liquid crystal molecules.Polaroid is disposed at respectively on active elements array substrates and the surface of subtend substrate away from liquid crystal layer, and wherein the penetrating shaft of polaroid is vertical mutually.When the driving liquid crystal indicator is narrow visual angle display mode, selecting and driving selecteed part second sub-pixel is bright attitude, and the toppling direction of liquid crystal molecule when bright attitude that is positioned at selecteed second sub-pixel can be parallel to one of them penetrating shaft of polaroid.
In one embodiment of this invention, each first sub-pixel has the first area partition structure.
In one embodiment of this invention, the first area partition structure is protrusion or slit.
In one embodiment of this invention, the subtend substrate is a colored optical filtering substrates, and has a plurality of color filter films.
In one embodiment of this invention, color filter film corresponding first sub-pixel configuration.
In one embodiment of this invention, also dispose a plurality of color filter films on the active elements array substrates, and color filter film covers active elements array substrates.
In one embodiment of this invention, active elements array substrates also disposes a plurality of color filter films on each first sub-pixel.
In one embodiment of this invention, first active component and/or second active component are thin film transistor (TFT).
In one embodiment of this invention, the area of first sub-pixel and second sub-pixel is different.
In one embodiment of this invention, each second pixel electrode also has the second area partition structure.
In one embodiment of this invention, the second area partition structure is the protrusion towards liquid crystal layer.
In one embodiment of this invention, the second area partition structure is the slit that is depressed in second pixel electrode.
The present invention can upset the image of first sub-pixel demonstration of the liquid crystal indicator of being watched by the side-looking angle, to reach the purpose that prevents that other people from peeping by optionally opening second sub-pixel.
For above-mentioned feature and advantage of the present invention can be become apparent, preferred embodiment cited below particularly, and cooperate appended graphicly, be described in detail below.
Description of drawings
Figure 1A～1C has the anti-synoptic diagram of peeping the liquid crystal indicator of function for conventional three kinds.
Fig. 2 A is the active elements array substrates top view of the liquid crystal indicator of first embodiment of the invention.
Fig. 2 B is the schematic perspective view of single pixel among Fig. 2 A.
Fig. 3 A is the partial enlarged drawing of Fig. 2 A.
Fig. 3 B is the light penetrating shaft of polaroid of Fig. 3 A and the synoptic diagram of lqiuid crystal molecule tipping direction.
Fig. 4 A is not when applying a voltage to the liquid crystal layer of Figure 1B, corresponding to the arrangement synoptic diagram of the liquid crystal molecule of second sub-pixel.
Fig. 4 B applies control voltage when the adjustable liquid crystal indicator in the visual angle of present embodiment, corresponding to the synoptic diagram of the lqiuid crystal molecule tipping of second sub-pixel.
Fig. 5 is the driving method block diagram of the liquid crystal indicator of one embodiment of the invention.
Fig. 6 A is the normal image that shows of liquid crystal indicator.
Fig. 6 B is the second whole sub-pixel when being all bright attitude, the image that the user sees.
When Fig. 6 C is bright attitude for partly second sub-pixel, the image that the user sees.
Fig. 7 is for being divided into liquid crystal indicator the synoptic diagram in staggered a plurality of first district and a plurality of second districts.
The main element symbol description
10: liquid crystal indicator
11: display panels
12: the visual angle switching device
12a, 12b: glass substrate
12c: liquid crystal layer
20,30: pixel
22,24,32,34: sub-pixel
200: active elements array substrates
210: substrate
212,302: the surface
220: sweep trace
230: data line
240: pixel
240a: first sub-pixel
240b: second sub-pixel
242: the first active components
244: the first pixel electrodes
246: the second active components
248: the second pixel electrodes
250: the first area partition structure
260: the second area partition structure
300: the subtend substrate
400: liquid crystal layer
410: liquid crystal molecule
410a: corresponding to the liquid crystal molecule of first sub-pixel
410b: corresponding to the liquid crystal molecule of second sub-pixel
500,600: polaroid
1000: liquid crystal indicator
1000a: first district
1000b: second district
A, B, C, D, E, F, G, H: direction
Embodiment
Fig. 2 A is the active elements array substrates top view of the liquid crystal indicator of first embodiment of the invention, and Fig. 2 B is the schematic perspective view of single pixel among Fig. 2 A.Please also refer to Fig. 2 A and 2B, the liquid crystal indicator 1000 of present embodiment can be the liquid crystal indicator of monocrystalline cave spacing or twin crystal cave spacing, determines according to demand.Liquid crystal indicator 1000 has a plurality of pixels 240, and wherein each pixel 240 has the first sub-pixel 240a and the second sub-pixel 240b.This liquid crystal indicator 1000 comprises active elements array substrates 200, subtend substrate 300, liquid crystal layer 400 and two polaroids 500,600.
Active elements array substrates 200 comprises substrate 210 and is configured in the multi-strip scanning line 220 on the substrate 210, many data lines 230, a plurality of first sub-pixel 240a and a plurality of second sub-pixel 240b, wherein the first sub-pixel 240a and the second sub-pixel 240b and sweep trace 220 and data line 230 corresponding electric connections.Each first sub-pixel 240a comprises first active component 242, first pixel electrode 244, and first active component 242 and first pixel electrode 244 are electrical connected.In the present embodiment, each second sub-pixel 240b comprises second active component 246 and second pixel electrode 248, and second active component 246 and second pixel electrode 248 are electrical connected.In other embodiments, also can be only on active elements array substrates 200, to dispose one second active component, and the second all pixel electrodes 248 be electrical connected in this second active component.
Above-mentioned first active component 242 and second active component 246 are all thin film transistor (TFT).Perhaps, first active component 242 is a thin film transistor (TFT), and second active component 246 can be other active components such as diode.In addition, it is identical or different that the area of the first sub-pixel 240a and the area of the second sub-pixel 240b can be, and need decide according to using.
Polaroid 500,600 is disposed at respectively on active elements array substrates 200 and the surface 212,302 of subtend substrate 300 away from liquid crystal layer 400, and wherein the light penetrating shaft of two polaroids 500,600 is vertical mutually.
Fig. 3 A is the partial enlarged drawing of Fig. 2 A.Please also refer to Fig. 2 B and Fig. 3 A, active elements array substrates 200 has first area partition structure 250 in each first sub-pixel 240a, and the first area partition structure 250 among Fig. 2 B for example is the strip protrusion of arrow type (arrow type), and the first area partition structure that other may be implemented can be the slit of pixel electrode or the alignment film of patterning.Fig. 3 B is the light penetrating shaft of polaroid of Fig. 3 A and the synoptic diagram of lqiuid crystal molecule tipping direction.Express clearly in order to illustrate, so Fig. 3 B only illustrates with the light penetrating shaft and the liquid crystal molecule of polaroid.Show that as Fig. 3 B by first area partition structure 250, liquid crystal molecule 410a can be just like a plurality of pre-dumping directions of A, B, C, D four direction.
In order to limit the angle of visibility scope of liquid crystal indicator 1000, therefore on second pixel electrode 248, dispose second area partition structure 260, and this second area partition structure 260 is the protrusion of strip.By second area partition structure 260, liquid crystal molecule 410b is had be different from the orientation of A, B, C, D four direction, so liquid crystal molecule 410b can be just like the pre-dumping direction of the E shown in Fig. 2 B, F direction.Other the second area partition structure that may implement can be the slit of pixel electrode or the alignment film of patterning.
Fig. 4 A is not when applying a voltage to the liquid crystal layer of Fig. 2 B, corresponding to the arrangement synoptic diagram of the liquid crystal molecule of second sub-pixel.Express clearly in order illustrating, so Fig. 4 A to be identical with Fig. 3 B, only to illustrate with the light penetrating shaft and the liquid crystal molecule of polaroid.Fig. 5 is the driving method block diagram of the liquid crystal indicator of one embodiment of the invention.Please also refer to Fig. 2 B, Fig. 3 B, Fig. 4 A and Fig. 5.
When not driving liquid crystal indicator 1000, the major axis bearing of trend that is positioned at liquid crystal molecule 410a, the 410b of the first sub-pixel 210a and the second sub-pixel 210b is approximately perpendicular to the surface 212 of substrate 210.When light by after the polaroid 600, can be absorbed with the polarized light of the light penetrating shaft EF different directions of polaroid 600.Afterwards, the polarization direction is that the light of EF enters liquid crystal molecule 410, because liquid crystal molecule 410 is not toppled over, therefore the light that penetrates from liquid crystal molecule 410 can not change its polarization direction.At last, light is by polaroid 500 time, because the light penetrating shaft GH of polaroid 500 is vertical mutually with the light penetrating shaft EF of polaroid 600, so the polarization direction is that the light of EF can be absorbed by polaroid 500 and can't appear from liquid crystal indicator 1000, and the first sub-pixel 210a is dark attitude at this moment.
When desire drove liquid crystal indicator 1000, liquid crystal indicator 1000 can receive selected signal, and this selects signal can determine liquid crystal indicator 1000 to show with narrow visual angle display mode or normal displaying mode, as step S100.
The selection signal of present embodiment can be via user's input, be additional in the picture signal, produces according to the power supply state of this liquid crystal indicator or produce according to the environmental parameter sensing result.Specifically, when the user thinks that image that next liquid crystal indicator 1000 will show belongs to secret and can not outflow, the user can utilize manual pressing keys or show with narrow visual angle display mode via software indicator solution crystal device 1000.Perhaps, indicator solution crystal device 1000 also can be to be additional in the picture signal with the instruction that narrow visual angle display mode shows, for example when the user opened the picture signal of this instruction with the display mode demonstration of narrow visual angle, liquid crystal indicator 1000 just can automatically perform with narrow visual angle display mode and show.Moreover, also can be to determine whether selecting showing with narrow visual angle display mode according to the environmental parameter sensing result, for example be the environmental parameter of ambient brightness and so on.In addition, it also can be the electric power supply condition of Auto-Sensing liquid crystal indicator 1000 and getting, do not open narrow visual angle display mode when for example liquid crystal indicator 1000 is battery-powered, and when liquid crystal indicator 1000 be when utilizing electric wire to connect external power source, just open narrow visual angle display mode automatically.
When selecting liquid crystal indicator 1000 to show, then when driving first sub-pixel, 2100 demonstration normal pictures, make second sub-pixel 2200 be dark attitude, as step S110 with normal displaying mode.Specifically, can apply driving voltage when driving liquid crystal indicator 1000 so that the liquid crystal molecule 410a that is positioned at the first sub-pixel 240a topples over and makes light to penetrate towards A, B, C, D four direction, the first sub-pixel 240a is bright attitude.At this moment, the liquid crystal molecule 410b in the second sub-pixel 240b is not subjected to driven and topples over, so light can't penetrate, and is dark attitude.Therefore, liquid crystal indicator 1000 is in normal demonstration mode, is positioned at liquid crystal indicator 1000 dead aheads or the people of side, can see the image that liquid crystal indicator 1000 shows.It " dark attitude " described in this instructions is meant that light can't pass through the state of the liquid crystal molecule in this district, and " bright attitude " is meant that then light can pass through the state of the liquid crystal molecule in this district.
When selecting liquid crystal indicator 1000 to show, then when driving first sub-pixel 240a demonstration normal pictures, select the second sub-pixel 240b partly, as step S120 with narrow visual angle display mode.
In one embodiment, select the method for the second sub-pixel 240b partly for calculating the mean flow rate of the first sub-pixel 240a adjacent with each second sub-pixel 240b.When mean flow rate is lower than default value, then select this second sub-pixel 240b, as step S122.This default value can be set at 1/10th of high-high brightness that the first sub-pixel 240a can show.When aforementioned mean flow rate is greater than or equal to this default value, then do not select this second sub-pixel 240b, as step S124.
Driving the selecteed second sub-pixel 240b afterwards is bright attitude, as step S130.Fig. 4 B applies driving voltage when the adjustable liquid crystal indicator in the visual angle of present embodiment, is positioned at the synoptic diagram of the lqiuid crystal molecule tipping of second sub-pixel.Please also refer to Fig. 2 B, Fig. 3 B and Fig. 4 B.The method that to drive the selecteed second sub-pixel 240b be bright attitude is to apply driving voltage so that second active component 246 (showing as Fig. 2 A) conducting of the selecteed second sub-pixel 240b, the liquid crystal molecule 410b that second pixel electrode 248 that is electrically connected with second active component 246 is corresponding can be activated and topple over towards E, F direction, therefore liquid crystal indicator 1000 has the light leak of G, H direction, and the second sub-pixel 240b is bright attitude by G, the sight of H direction.In the present embodiment, the brightness that drives the selecteed second sub-pixel 240b and be bright attitude and can be this second sub-pixel 240b is increased to than mean flow rate for high, with effective interference picture.Wherein, the method that improves the brightness of this second sub-pixel 240b can be that color filter film with corresponding this second sub-pixel 240b on the subtend substrate 300 removes.
Hold above-mentionedly, in the present embodiment, the selecteed second sub-pixel 240b can be the second whole sub-pixel 240b, also can be the second sub-pixel 240b partly.Fig. 6 A is that normal image, Fig. 6 B that shows of liquid crystal indicator is the second whole sub-pixel when being all bright attitude, the image that the user sees, and Fig. 6 C is when being bright attitude for second sub-pixel partly, the image that the user sees.By Fig. 6 A and 6B as can be known, if when all driving the second all sub-pixel 240b for bright attitude, what the people of side-looking saw is a brighter image.By Fig. 6 C as can be known, selecting the second sub-pixel 240b partly is bright attitude, and what the people of side-looking saw is image bright, dark skewness, can more effectively upset the display image that the people that watched by liquid crystal indicator 1000 sides can watch.In one embodiment, more can utilize the second lower sub-pixel 240b of mean flow rate of first sub-pixel 2100 around driving is bright attitude, and will around the second higher sub-pixel 240b of mean flow rate of the first sub-pixel 240a remain on dark attitude, can allow the Luminance Distribution of the being seen picture of side-looking obviously different with the Luminance Distribution of facing being seen picture.Particularly; the being seen picture of side-looking can be drawn high brightness because of the second sub-pixel 240b is bright attitude in originally darker zone; and upset the shown normal pictures of the first sub-pixel 240a effectively by the being seen effect in side-looking angle, to reach the purpose that prevents that other people from peeping.
Though be that bright attitude or dark attitude illustrate all in the present embodiment with the second sub-pixel 240b, but those skilled in the art should know that after considering this instructions in light of actual conditions also can drive the second sub-pixel 240b shows various GTG values, but not simple bright attitude or dark attitude.Meaning promptly, the brightness that can drive the second sub-pixel 240b between high-high brightness and complete dark between.For example, when liquid crystal indicator 1000 is in narrow visual angle display mode, the shown brightness of the second sub-pixel 240b that is driven to bright attitude can be same as shown high-high brightness among driven all first sub-pixel 240a.
In addition, the first sub-pixel 240a and the second sub-pixel 240b are staggered.This alleged being staggered be not limited to each first sub-pixel 240a around all in abutting connection with the second sub-pixel 240b, also can be to arrange mutual again interting after the first sub-pixel 240a and the second sub-pixel 240b are lined up multiple row respectively, also or other suitable arrangement mode.
In addition, though each of present embodiment second sub-pixel 240b comprises second pixel electrode 248 and second active component 246, but in other embodiments, also can be at one second active component 246 of active elements array substrates 200 configurations, and second pixel electrode 248 and second active component 246 of all second sub-pixel 240b be electrical connected, allow the second sub-pixel 240b present bright attitude simultaneously, to reach the purpose of interfering picture.Perhaps, also can be that second pixel electrode 248 of a plurality of second active components 246 and one second sub-pixel 240b is electrical connected, made a plurality of second sub-pixel 240b simultaneously bright, remaining second sub-pixel 240b is dark simultaneously, decides on demand.
In another embodiment, select the second sub-pixel 240b partly as follows to carry out method of driving.Fig. 7 is for being divided into liquid crystal indicator the synoptic diagram in staggered a plurality of first district and a plurality of second districts.In this mode, liquid crystal indicator 1000 is divided into staggered a plurality of first district 1000a and a plurality of second district 1000b, each the first district 1000a and the second district 1000b comprise a plurality of first sub-pixel 240a and a plurality of second sub-pixel 240b.Simultaneously, selection is positioned at the second sub-pixel 240b of the second district 1000b and is driven to bright attitude.In the present embodiment, the method of dividing liquid crystal indicator 1000 comprises makes the first district 1000a and the second district 1000b be arranged as the gridiron pattern pattern, but the arrangement mode of the first district 1000a and the second district 1000b also can be a plurality of staggered strips zone, a plurality of staggered delta-shaped region or other suitable mode.As shown in Figure 7, the second sub-pixel 240b that is positioned at the second district 1000b is dark attitude, can't be subjected to the interference of the second sub-pixel 240b when therefore the normal pictures of the first sub-pixel 240a of second district 1000b demonstration is watched by the side-looking angle.Therefore and the second sub-pixel 240b that is positioned at the first district 1000a is bright attitude, can be subjected to the interference of the second sub-pixel 240b when normal pictures of the first sub-pixel 240a of first district 1000a demonstration is watched by the side-looking angle and confusion.By this, by the people that the side of liquid crystal indicator 1000 is spied on, can see normal pictures and the disturbed picture of the first district 1000a that the second district 1000b shows simultaneously, and can't understand this chaotic picture.
In sum, liquid crystal indicator of the present invention and driving method thereof utilize second sub-pixel that optionally drives at least partly, change the Luminance Distribution of display frame with the part, the picture that disturbs other people to see effectively by the side of liquid crystal indicator, and then reach and prevent the purpose peeped.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; any those of ordinary skill in the art; without departing from the spirit and scope of the present invention; when can doing a little change and retouching, so protection scope of the present invention is as the criterion when looking the appended claim person of defining.
Claims (15)
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| CN 200710185173 CN101425274B (en) | 2007-11-01 | 2007-11-01 | Driving method of liquid crystal display device and liquid crystal display device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102043290A (en) * | 2009-10-22 | 2011-05-04 | 斯坦雷电气株式会社 | Liquid crystal display device |
| CN102231017A (en) * | 2011-05-05 | 2011-11-02 | 友达光电股份有限公司 | Liquid crystal display panel |
| CN102253532A (en) * | 2011-05-19 | 2011-11-23 | 友达光电股份有限公司 | Display device |
| CN102402918A (en) * | 2011-12-20 | 2012-04-04 | 深圳Tcl新技术有限公司 | Method for Improving Image Quality and LCD Display |
| CN102855453A (en) * | 2011-06-30 | 2013-01-02 | 网秦无限（北京）科技有限公司 | Method and system for preventing mobile device screen display from being peeped |
| CN104122726A (en) * | 2014-07-11 | 2014-10-29 | 京东方科技集团股份有限公司 | Display panel, displayer, display device and driving method |
| CN104122705A (en) * | 2014-07-11 | 2014-10-29 | 京东方科技集团股份有限公司 | Display panel, displayer, display device and driving method |
| CN104765211A (en) * | 2013-01-07 | 2015-07-08 | 友达光电股份有限公司 | Display device and driving method thereof |
| CN106782371A (en) * | 2016-12-20 | 2017-05-31 | 惠科股份有限公司 | Liquid crystal display device and driving method of liquid crystal display panel thereof |
| CN107843993A (en) * | 2017-11-09 | 2018-03-27 | 维沃移动通信有限公司 | A kind of control method and mobile terminal of display screen visible angle |
| CN108922490A (en) * | 2018-09-07 | 2018-11-30 | 惠科股份有限公司 | Display panel driving method and display device |
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Family Cites Families (3)
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