CN102929003B - Rapid aging method for smectic phase liquid crystal display screen - Google Patents
Rapid aging method for smectic phase liquid crystal display screen Download PDFInfo
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Abstract
The invention discloses a rapid aging method for a smectic phase liquid crystal display screen. The method comprises the following steps of: dividing the whole screen into P*Q rectangular areas forming a matrix structure; enabling the whole screen to present a spray shading state within first preset time; enabling each rectangular area of the whole screen to present the spray shading state or an all-transparent state within first implementation time, and making the display state of each rectangular area different from those of all adjacent rectangular areas; stopping loading a driving signal, and persisting for a set time; enabling the whole screen to present the spray shading state within second preset time; making the display state of each rectangular area of the whole screen different from that in the third step within second implementation time; and stopping loading the driving signal, and persisting for a set time, wherein the steps are repeated at least once. According to the method, the aging strength of the smectic phase liquid crystal display screen is strengthened, aging speed is increased, and aging efficiency is improved.
Description
Technical field
The present invention relates to a kind of display screen aging method, espespecially a kind of quick aging method being applied to smectic liquid crystal display screen.
Background technology
Liquid crystal display is one of the most promising current flat-panel display device, traditional liquid crystal display is all passive display, i.e. transmission-type display, only just can show under the condition of additional backlight, but more than the hundred times of the power consumption of the backlight power consumption that is liquid crystal own, extremely consume energy.Along with the development of liquid crystal technology, various liquid crystal material emerges in an endless stream, and does not wherein need the reflective liquid crystal of backlight to rely on its low power consumption characteristic to have absolute predominance.Smectic liquid crystal display screen (being also called smectic liquid crystal display screen) is with its distinctive film surface characteristic and reflection-type displaying principle, achieve a kind of without the need to backlight, structure is simple, visual angle is extensive, picture is steady, real safety and environmental protection, power saving display device, and it has the advantage such as long-term memory function and user's indefatigability, maintains the leading position in the ranks of display.
Existing traditional aging method for smectic liquid crystal display screen constantly circulates to all row and columns of this smectic liquid crystal display screen to apply anti-phase corresponding low-frequency high-voltage pulse, anti-phase corresponding hf and hv pulse at present, smectic liquid crystal display screen is constantly changed between vaporific lucifuge state and all-transparent state, thus reaches the object aging to this smectic liquid crystal display screen.But, can find from reality is implemented, due to the characteristic that the smectic liquid crystal itself adopted in smectic liquid crystal display screen has, by full frame become all-transparent state or vaporific lucifuge state time, all smectic liquid crystal molecules in display screen are at the same time together in the process of a direction deflection, there is very large 'inertia', deflection speed is very slow, therefore, the aging intensity of this aging method existing is not very high at present, the aging effect reached neither be fine, and aging speed does not reach desirable speed yet, has much room for improvement.
Summary of the invention
The object of the present invention is to provide a kind of smectic liquid crystal display screen quick aging method, the method strengthens the aging intensity of smectic liquid crystal display screen, accelerates aging speed, improves ageing efficiency.
To achieve these goals, present invention employs following technical scheme:
A kind of smectic liquid crystal display screen quick aging method, this smectic liquid crystal display screen comprises the first base layer and the second base layer, the mixolimnion comprising smectic liquid crystal and conducting objects is provided with between the first base layer and the second base layer, first base layer is provided with the first conductive electrode layer towards the side of mixolimnion, second base layer is provided with the second conductive electrode layer towards the side of mixolimnion, first conductive electrode layer is made up of M column electrode, second conductive electrode layer is made up of N number of row electrode, this M column electrode is mutually orthogonal with this N number of row electrode and form the pixel array of M × N, it is characterized in that: the method comprises and repeats following steps a-g at least one times:
A. the full frame of this smectic liquid crystal display screen is divided into P × Q the rectangular area being arranged in matrix structure, P, Q be positive integer and P, Q are different time be 1;
B. within first schedule time, a pair low frequency pulse signal is loaded on each column electrode, each row electrode respectively, makes the full frame of this smectic liquid crystal display screen be rendered as vaporific lucifuge state, then stop loading this to low frequency pulse signal;
C. within the first enforcement time, corresponding high-frequency impulse drive singal is loaded in the corresponding time period of row, column electrode corresponding to each rectangular area divided in step a within this first enforcement time, each rectangular area is made to be rendered as vaporific lucifuge state or all-transparent state, wherein: the display state that all rectangular areas that the display state that each rectangular area presents is adjacent present is different, be in row, column electrode corresponding to all rectangular areas of same level position at one time section load corresponding high-frequency impulse drive singal respectively, successively turntable driving is carried out to the rectangular area being in each horizontal level, wherein: when turntable driving is in the rectangular area of a horizontal level, corresponding high-frequency impulse drive singal is loaded to the column electrode that the rectangular area being in this horizontal level is corresponding, simultaneously to being in this horizontal level, row electrode corresponding to the rectangular area of vaporific lucifuge state will be presented and load the drive singal identical with this high-frequency impulse drive singal, and to being in this horizontal level, row electrode corresponding to the rectangular area of all-transparent state will be presented load and this high-frequency impulse drive singal drive singal that only phase place is contrary,
D. stop loading high-frequency impulse drive singal to row, column electrode and continuing a setting-up time;
E. within second schedule time, a pair low frequency pulse signal is loaded on each column electrode, each row electrode respectively, makes the full frame of this smectic liquid crystal display screen again be rendered as vaporific lucifuge state, then stop loading this to low frequency pulse signal;
F. within the second enforcement time, corresponding high-frequency impulse drive singal is loaded in the corresponding time period of row, column electrode corresponding to each rectangular area divided in step a within this second enforcement time, each rectangular area is made to be rendered as vaporific lucifuge state or all-transparent state, wherein: the display state presented in the display state that each rectangular area presents and step c is different, be in row, column electrode corresponding to all rectangular areas of same level position at one time section load corresponding high-frequency impulse drive singal respectively, successively turntable driving is carried out to the rectangular area being in each horizontal level, wherein: when turntable driving is in the rectangular area of a horizontal level, corresponding high-frequency impulse drive singal is loaded to the column electrode that the rectangular area being in this horizontal level is corresponding, simultaneously to being in this horizontal level, row electrode corresponding to the rectangular area of vaporific lucifuge state will be presented and load the drive singal identical with this high-frequency impulse drive singal, and to being in this horizontal level, row electrode corresponding to the rectangular area of all-transparent state will be presented load and this high-frequency impulse drive singal drive singal that only phase place is contrary,
G. stop loading high-frequency impulse drive singal to row, column electrode and continuing a setting-up time.
Advantage of the present invention is:
In the step c and f of the inventive method, when a rectangular area is to default display state change, the rectangular area be adjacent in the horizontal direction will change to the display state different with its display state, the characteristic had due to smectic liquid crystal itself determines, can draw from reality is implemented, the smectic liquid crystal molecule deflected to the direction perpendicular to conductive electrode layer plane is adjacent, continue mutually to produce an impetus between the smectic liquid crystal molecule to the direction deflection being parallel to conductive electrode layer plane, the deflection speed of the smectic liquid crystal molecule deflected to the direction perpendicular to conductive electrode layer plane can be accelerated and accelerate the deflection speed of the smectic liquid crystal molecule to the direction deflection being parallel to conductive electrode layer plane, in addition, when a rectangular area is to default display state change, be adjacent, smectic liquid crystal molecule corresponding to the display state rectangular area different with its default display state also can produce an impetus to the deflection of smectic liquid crystal molecule corresponding to this rectangular area, accelerate the deflection speed of smectic liquid crystal molecule corresponding to this rectangular area, thus, compared with traditional aging method, the inventive method improves aging intensity, accelerate aging speed, improve aging effect.
Accompanying drawing explanation
Fig. 1 is the composition schematic diagram of smectic liquid crystal display screen;
Fig. 2 is the first and second conductive electrode layer schematic diagram being arranged in dot matrix column-shaped anyhow;
Fig. 3 is the realization flow figure of quick aging method of the present invention;
Fig. 4 A is the oscillogram of a pair low frequency bidirectional pulse signal in first embodiment of the invention, row-column electrode applied;
Fig. 4 B is the oscillogram of a pair high frequency bidirectional pulse signal in first embodiment of the invention, row-column electrode applied;
Fig. 4 C is the oscillogram of the high frequency bidirectional pulse drive singal in first embodiment of the invention, column electrode applied;
Fig. 5 A is the oscillogram of a pair low frequency direct impulse signal in second embodiment of the invention, row-column electrode applied;
Fig. 5 B is the oscillogram of a pair high frequency direct impulse signal in second embodiment of the invention, row-column electrode applied;
Fig. 5 C is the oscillogram of the high frequency direct impulse drive singal in second embodiment of the invention, column electrode applied;
Fig. 6 A is the display view of each rectangular area in the step c in third embodiment of the invention;
Fig. 6 B is the display view of each rectangular area in the step f in third embodiment of the invention;
Fig. 7 A is the division schematic diagram of rectangular area in the step a in fourth embodiment of the invention;
Fig. 7 B is the display view of each rectangular area in the step c in fourth embodiment of the invention;
Fig. 7 C is the display view of each rectangular area in the step f in fourth embodiment of the invention;
The schematic diagram of Fig. 8 to be smectic liquid crystal molecule be out of order arrangement form;
The schematic diagram of Fig. 9 to be smectic liquid crystal molecule be regularly arranged form.
Embodiment
Smectic liquid crystal display screen quick aging method of the present invention designs for smectic liquid crystal display screen.As depicted in figs. 1 and 2, this smectic liquid crystal display screen 10 comprises the first base layer 11 and the second base layer 12.The material of the first base layer 11 and the second base layer 12 is chosen as transparent glass or plastics.Between the first base layer 11 and the second base layer 12, be provided with mixolimnion 13, this mixolimnion comprises smectic liquid crystal and conducting objects.Such as, mixolimnion 13 can be mixed by smectic liquid crystal, conducting objects, spacer, or mixolimnion 13 comprises the potpourri being encapsulated in and being made up of smectic liquid crystal, conducting objects and spacer in polymer architecture.Smectic liquid crystal (being also called smectic phase liquid crystal) can be category-A smectic liquid crystal, as being with the compound etc. of siloxy.Conducting objects can be the compound of band conductive characteristic, as cetyltriethylammonium bromide etc.Spacer can be the transparent batching sphere or spacer rod that the materials such as glass make.Polymer architecture is the transparent configuration with the setting shape of chamber of polymerizable molecular material or the heat curing of single molecular material or ultra-violet curing formation.The first conductive electrode layer 14 is coated with towards the side of mixolimnion 13 at the first base layer 11, the second conductive electrode layer 15 is coated with towards the side of mixolimnion 13 at the second base layer 12, as shown in Figure 2, first conductive electrode layer 14 is made up of M strip line electrode 141 arranged in parallel, second conductive electrode layer 15 is made up of N number of strip row electrode 151 arranged in parallel, M, N is positive integer, M column electrode 141 of the first conductive electrode layer 14 is mutually orthogonal with N number of row electrode 151 of the second conductive electrode layer 15 and form the pixel-matrix array structure of a M × N, a column electrode 141 and a row electrode 151 form a pixel, pixel 20 as shown in Figure 2.This first and second conductive electrode layer 14 and 15 and middle mixolimnion 13 define the very large capacitance structure of an area.First conductive electrode layer 14 and the second conductive electrode layer 15 are transparent, and it can be ITO (tin indium oxide) etc., and can use auxiliary metal electrode as required, as aluminium, copper, silver etc.In reality, according to display needs, also can be mixed with a certain amount of dichroic dye in mixolimnion 13, this smectic liquid crystal display screen can arrange or not arrange backboard, such as black backboard.
As shown in Figure 3, the inventive method comprises and repeats following steps a-g at least one times:
A. the full frame of this smectic liquid crystal display screen 10 is divided into P × Q the rectangular area being arranged in matrix structure, P, Q are positive integer and P, Q can not be 1 simultaneously.That is, each rectangular area is corresponding with at least one pixel, and all rectangular areas be on same level position correspond to identical column electrode 141, and all rectangular areas be on same upright position correspond to identical row electrode 151.In other words, the full frame of smectic phase LCDs 10 divides by this step a as follows: with behavior unit, multiple region (region comprises at least one row) is marked off by full frame vertical direction, then, be unit again with row, multiple region (region comprises at least one row) is marked off by full frame again horizontal direction, certainly, also can not divide in vertical direction and mark off multiple region in the horizontal direction or do not divide in the horizontal direction and mark off multiple region in vertical direction, like this, full framely the multiple rectangular areas being arranged in matrix form are just divided into.
B. within first schedule time, a pair low frequency pulse signal is loaded on each column electrode 141, each row electrode 151 respectively, makes the full frame of this smectic liquid crystal display screen 10 be rendered as vaporific lucifuge state, then stop loading this to low frequency pulse signal;
C. within the first enforcement time, corresponding high-frequency impulse drive singal is loaded in the corresponding time period of row, column electrode 141,151 corresponding to each rectangular area divided in step a within this first enforcement time, each rectangular area is made to be rendered as vaporific lucifuge state or all-transparent state, wherein: the display state that all rectangular areas that the display state that each rectangular area presents is adjacent present is different, be in row, column electrode corresponding to all rectangular areas of same level position at one time section load corresponding high-frequency impulse drive singal respectively.In other words, the display state that the rectangular area adjoined with the rectangular area being rendered as vaporific lucifuge state presents is all-transparent state, and the display state that the rectangular area adjoined with the rectangular area being rendered as all-transparent state presents is vaporific lucifuge state.That is, in this step c, be rendered as the rectangular area be close to around the rectangular area of vaporific lucifuge state and must be rendered as all-transparent state, be rendered as the rectangular area be close to around the rectangular area of all-transparent state and must be rendered as vaporific lucifuge state.
D. stop loading high-frequency impulse drive singal to row, column electrode 141,151 and continuing a setting-up time;
E. within second schedule time, a pair low frequency pulse signal is loaded on each column electrode 141, each row electrode 151 respectively, makes the full frame of this smectic liquid crystal display screen 10 again be rendered as vaporific lucifuge state, then stop loading this to low frequency pulse signal;
F. within the second enforcement time, corresponding high-frequency impulse drive singal is loaded in the corresponding time period of row, column electrode 141,151 corresponding to each rectangular area divided in step a within this second enforcement time, each rectangular area is made to be rendered as vaporific lucifuge state or all-transparent state, wherein: the display state presented in the display state that each rectangular area presents and step c is different, be in row, column electrode corresponding to all rectangular areas of same level position at one time section load corresponding high-frequency impulse drive singal respectively.In other words, the rectangular area being rendered as vaporific lucifuge state in step c should be rendered as all-transparent state in this step f, and the rectangular area being rendered as all-transparent state in step c should be rendered as vaporific lucifuge state in this step f.In addition, in this step f, be rendered as all rectangular areas be close to around the rectangular area of vaporific lucifuge state and must be rendered as all-transparent state, be rendered as all rectangular areas be close to around the rectangular area of all-transparent state and must be rendered as vaporific lucifuge state.
G. stop loading high-frequency impulse drive singal to row, column electrode and continuing a setting-up time.
When reality is implemented, repeat repeatedly in step a-g, the division result of each rectangular area performed in step a may be the same or different.
It should be noted that, in the methods of the invention, for a rectangular area, the rectangular area be adjacent refers to the rectangular area be adjacent in the horizontal and vertical directions, and only has with it rectangular area that end points is adjacent not included on vergence direction.
In reality is implemented, in step a, P, Q can not get 1 simultaneously, and the maximal value that the maximal value of P is M, Q is N.Working as P=M, during Q=N, is namely a rectangular area with each pixel.Such as, the display screen 10 supposing in Fig. 6 A and Fig. 6 B is that the display screen of 80 × 120 standards (namely has 80 column electrodes 141, 120 row electrodes 151), as shown in Figure 6 A and 6 B, display screen 10 is divided into 8 × 12 rectangular areas (i.e. square area) in figure, these rectangular areas form a matrix structure, each rectangular area is corresponding with 100 pixels forming square shape, the all rectangular areas be on same level position correspond to 10 identical column electrodes 141, the all rectangular areas be on same upright position correspond to 10 identical row electrodes 151.For the display screen shown in Fig. 6 A and Fig. 6 B, following burnin operation can be carried out to it: first make full framely to be rendered as vaporific lucifuge state by the inventive method, then, each rectangular area that display screen 10 divides is made to be rendered as the display state shown in Fig. 6 A respectively (in Fig. 6 A, black is expressed as vaporific lucifuge state, white is expressed as all-transparent state), then, make again to be full framely rendered as vaporific lucifuge state, then, each rectangular area that display screen 10 divides is made to be rendered as the display state shown in Fig. 6 B respectively (in Fig. 6 B, black is expressed as vaporific lucifuge state, white is expressed as all-transparent state).Therefore, as can be seen from Fig. 6 A and Fig. 6 B, the display state presenting all rectangular areas of the rectangular area next-door neighbour of vaporific lucifuge state must be all-transparent state, the display state presenting all rectangular areas of the rectangular area next-door neighbour of all-transparent state must be vaporific lucifuge state, and, for a rectangular area, if its display state is in fig. 6 vaporific lucifuge state, then its display state in fig. 6b must be all-transparent state, on the contrary, if its display state is in fig. 6 all-transparent state, then its display state in fig. 6b must be vaporific lucifuge state.
When reality is implemented, when each execution step a-g, also can comprise before step a and repeat following steps a01-a02 (general execution is once) at least one times:
A01. in the first setting-up time (this first setting-up time can equal for first schedule time), a pair low frequency pulse signal is loaded on each column electrode 141, each row electrode 151 respectively, make the full frame of smectic liquid crystal display screen 10 be rendered as vaporific lucifuge state, then stop loading this and also a setting-up time is continued to low frequency pulse signal;
A02. in the second setting-up time (this second setting-up time can equal for second schedule time), a pair high-frequency pulse signal is loaded on each column electrode 141, each row electrode 151 respectively, make the full frame of smectic liquid crystal display screen 10 be rendered as all-transparent state, then stop loading this and also a setting-up time is continued to high-frequency pulse signal.
It should be noted that, the length of the setting-up time in each step above-mentioned may be the same or different, usually, the span of this setting-up time T is controlled is made as 10s≤T≤60s, the effect designing this setting-up time allows smectic liquid crystal molecule deflect and after deflecting into predetermined deflection angle, is parked in Absorbable organic halogens and this deflection angle keeps a stable state.
In reality is implemented, in step c: successively turntable driving is carried out to the rectangular area being in each horizontal level, wherein: when turntable driving is in the rectangular area of a horizontal level, the column electrode 141 corresponding to the rectangular area being in this horizontal level loads corresponding high-frequency impulse drive singal, simultaneously to being in this horizontal level, row electrode 151 loading (the i.e. phase place identical with this high-frequency impulse drive singal that the rectangular area of vaporific lucifuge state is corresponding will be presented, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are all identical) drive singal, and to being in this horizontal level, will present row electrode 151 corresponding to the rectangular area of all-transparent state load with this high-frequency impulse drive singal only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are identical) drive singal.
In reality is implemented, in step f: successively turntable driving is carried out to the rectangular area being in each horizontal level, wherein: when turntable driving is in the rectangular area of a horizontal level, corresponding high-frequency impulse drive singal is loaded to the column electrode that the rectangular area being in this horizontal level is corresponding, simultaneously to being in this horizontal level, row electrode loading (the i.e. phase place identical with this high-frequency impulse drive singal that the rectangular area of vaporific lucifuge state is corresponding will be presented, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are all identical) drive singal, and to being in this horizontal level, will present row electrode corresponding to the rectangular area of all-transparent state load with this high-frequency impulse drive singal only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are identical) drive singal.
It should be noted that, that turntable driving is carried out together in all rectangular areas being in same horizontal level to the turntable driving of rectangular area in step c, so, suppose that the rectangular area on turntable driving horizontal level needs the X time, then this first enforcement time is X × P.In like manner, also be that turntable driving is carried out together in all rectangular areas being in same horizontal level to the turntable driving of rectangular area in step f, so, suppose that the rectangular area on turntable driving horizontal level needs the Y time, then this second enforcement time is Y × P.
In reality is implemented, DC can be kept in quick aging processing procedure to balance to make display screen 10, for the inventive method not comprising step a01 and a02, as long as a pair low frequency pulse signal in step b and e only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number, dutycycle etc. that apply are identical), the dutycycle of low frequency pulse signal and high-frequency impulse drive singal is 50%.For the inventive method comprising step a01 and a02, make step b, a pair low frequency pulse signal in e and a01 only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are identical), a pair high-frequency pulse signal in step a02 only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are identical), and low frequency pulse signal, the dutycycle of high-frequency pulse signal and high-frequency impulse drive singal is 50%, can realize display screen 10 keeps DC to balance in quick aging processing procedure.If keep DC balance, so in the whole process of quick aging process, (the positive and negative area being superimposed upon the voltage waveform on each pixel offsets each pixel would not to exist voltage difference, voltage integrating meter is 0), the balance of DC ensure that display screen there will not be the drive characteristic of the smectic liquid crystal material caused because of the long-term existence of voltage difference to change in the whole process of quick aging process, the situation that even can not drive.
In reality is implemented, the pulse signal in the inventive method can be all bidirectional pulse or be all unidirectional pulse (direct impulse or negative-going pulse), illustrates below with the inventive method comprising step a01 and a02.
If low frequency pulse signal, high-frequency pulse signal and high-frequency impulse drive singal are all bidirectional pulse, then:
A pair low frequency pulse signal is bidirectional pulse; The cycle of the low frequency pulse signal (as being positioned at voltage waveform above in Fig. 4 A) in a pair low frequency pulse signal is Td (frequency f d=1/Td), be made up of the Qd connected continuously two-way low-frequency pulse unit, this two-way low-frequency pulse unit is connected successively formed by the positive voltage of a lasting td1 time, the negative voltage of a lasting td2 time, the voltage magnitude of this positive voltage and negative voltage is equal, Td=td1+td2; This is also Td to the cycle of another low frequency pulse signal (as being positioned at voltage waveform below in Fig. 4 A) in low frequency pulse signal, be made up of the Qd connected continuously anti-phase two-way low-frequency pulse unit, this anti-phase two-way low-frequency pulse unit is connected successively formed by the negative voltage of a lasting td1 time, the positive voltage of a lasting td2 time, the voltage magnitude of this negative voltage and positive voltage is equal, Td=td1+td2; This is identical to the voltage magnitude of low frequency pulse signal, and as Fig. 4 A, this is respectively Ud_a, Ud_b (Ud_a > 0, Ud_b > 0) to the voltage magnitude of low frequency pulse signal, Ud_a=Ud_b; This is all less than threshold voltage magnitude to the voltage magnitude of low frequency pulse signal, and the voltage magnitude (Ud_a+Ud_b) obtained after the superposition of this voltage magnitude to low frequency pulse signal is greater than threshold voltage magnitude.
A pair high-frequency pulse signal is bidirectional pulse; The cycle of the high-frequency pulse signal (as being positioned at voltage waveform above in Fig. 4 B) in a pair high-frequency pulse signal is Tg (frequency f g=1/Tg), be made up of the Qg connected continuously two-way high-frequency impulse unit, this two-way high-frequency impulse unit is connected successively formed by the positive voltage of a lasting tg1 time, the negative voltage of a lasting tg2 time, the voltage magnitude of this positive voltage and negative voltage is equal, Tg=tg1+tg2; This is also Tg to the cycle of another high-frequency pulse signal (as being positioned at voltage waveform below in Fig. 4 B) in high-frequency pulse signal, be made up of the Qg connected continuously anti-phase two-way high-frequency impulse unit, this anti-phase two-way high-frequency impulse unit is connected successively formed by the negative voltage of a lasting tg1 time, the positive voltage of a lasting tg2 time, the voltage magnitude of this negative voltage and positive voltage is equal, Tg=tg1+tg2; This is identical to the voltage magnitude of high-frequency pulse signal, and as Fig. 4 B, this is respectively Ug_a, Ug_b (Ug_a > 0, Ug_b > 0) to the voltage magnitude of high-frequency pulse signal, Ug_a=Ug_b; This is all less than threshold voltage magnitude to the voltage magnitude of high-frequency pulse signal, and the voltage magnitude (Ug_a+Ug_b) obtained after the superposition of this voltage magnitude to high-frequency pulse signal is greater than threshold voltage magnitude.
High-frequency impulse drive singal is bidirectional pulse, as Fig. 4 C, its cycle is Tg ' (frequency f g '=1/Tg '), and be made up of the Qg' connected continuously two-way high-frequency impulse driver element, this two-way high-frequency impulse driver element is connected successively formed by the positive voltage of lasting tg ' 1 time, the negative voltage of a lasting tg'2 time, the voltage magnitude of this positive voltage and negative voltage is equal, Tg'=tg ' 1+tg ' 2; Voltage magnitude the Ug ' _ a of high-frequency impulse drive singal is less than threshold voltage magnitude, and voltage magnitude the 2Ug ' _ a of the high-frequency impulse drive singal of twice is greater than threshold voltage magnitude.
In practice, when low frequency pulse signal, high-frequency pulse signal and high-frequency impulse drive singal are all bidirectional pulse, can set: the frequency of this low frequency pulse signal is as being more than or equal to 10Hz and being less than or equal to 1000Hz, the voltage magnitude of the positive and negative voltage of this low frequency pulse signal, for being more than or equal to 5V and being less than or equal to 125V, loads the pulse unit number Qd of this low frequency pulse signal for being more than or equal to 1 and being less than or equal to 500; The frequency of this high-frequency pulse signal is for being greater than 1kHz and being less than or equal to 25kHz, the voltage magnitude of the positive and negative voltage of this high-frequency pulse signal, for being more than or equal to 5V and being less than or equal to 125V, loads the pulse unit number Qg of this high-frequency pulse signal for being more than or equal to 1 and being less than or equal to 2000; The frequency of this high-frequency impulse drive singal is for being greater than 1kHz and being less than or equal to 25kHz, the voltage magnitude of the positive and negative voltage of this high-frequency impulse drive singal, for being more than or equal to 5V and being less than or equal to 125V, loads the pulse driver unit number Qg ' of this high-frequency impulse drive singal for being more than or equal to 1 and being less than or equal to 2000.
If low frequency pulse signal, high-frequency pulse signal and high-frequency impulse drive singal are all direct impulse, then:
A pair low frequency pulse signal is direct impulse; The cycle of the low frequency pulse signal (as being positioned at voltage waveform above in Fig. 5 A) in a pair low frequency pulse signal is Td (frequency f d=1/Td), be made up of Qd the forward low-frequency pulse unit connected continuously, this forward low-frequency pulse unit connects successively and forms by the positive voltage of a lasting td1 time, 0 volt of voltage of a lasting td2 time, Td=td1+td2; This is also Td to the cycle of another low frequency pulse signal (as being positioned at voltage waveform below in Fig. 5 A) in low frequency pulse signal, be made up of the Qd connected continuously anti-phase forward low-frequency pulse unit, this anti-phase forward low-frequency pulse unit connects successively and forms by 0 volt of voltage of a lasting td1 time, the positive voltage of a lasting td2 time, Td=td1+td2; This is identical to the voltage magnitude of low frequency pulse signal, and as Fig. 5 A, this is respectively Ud_a, Ud_b (Ud_a > 0, Ud_b > 0) to the voltage magnitude of low frequency pulse signal, Ud_a=Ud_b; This is all greater than threshold voltage magnitude to the voltage magnitude of low frequency pulse signal.
A pair high-frequency pulse signal is direct impulse; The cycle of the high-frequency pulse signal (as being positioned at voltage waveform above in Fig. 5 B) in a pair high-frequency pulse signal is Tg (frequency f g=1/Tg), be made up of Qg the forward high-frequency impulse unit connected continuously, this forward high-frequency impulse unit connects successively and forms by the positive voltage of a lasting tg1 time, 0 volt of voltage of a lasting tg2 time, Tg=tg1+tg2; This is also Tg to the cycle of another high-frequency pulse signal (as being positioned at voltage waveform below in Fig. 5 B) in high-frequency pulse signal, be made up of the Qg connected continuously anti-phase forward high-frequency impulse unit, this anti-phase forward high-frequency impulse unit connects successively and forms by 0 volt of voltage of a lasting tg1 time, the positive voltage of a lasting tg2 time, Tg=tg1+tg2; This is identical to the voltage magnitude of high-frequency pulse signal, and as Fig. 5 B, this is respectively Ug_a, Ug_b (Ug_a > 0, Ug_b > 0) to the voltage magnitude of high-frequency pulse signal, Ug_a=Ug_b; This is all greater than threshold voltage magnitude to the voltage magnitude of high-frequency pulse signal.
High-frequency impulse drive singal is direct impulse, as Fig. 5 C, its cycle is Tg ' (frequency f g '=1/Tg '), be made up of Qg' the forward high-frequency impulse driver element connected continuously, this forward high-frequency impulse driver element connects successively and forms by the positive voltage of lasting tg ' 1 time, 0 volt of voltage of lasting tg ' 2 time, Tg'=tg ' 1+tg'2; Voltage magnitude the Ug ' _ a of high-frequency impulse drive singal is greater than threshold voltage magnitude.
Low frequency pulse signal, high-frequency pulse signal and high-frequency impulse drive singal are all the situation of negative-going pulse and above-mentioned low frequency pulse signal, high-frequency pulse signal and high-frequency impulse drive singal to be all the situation of direct impulse similar, therefore no longer here describe in detail.
In practice, when low frequency pulse signal, high-frequency pulse signal and high-frequency impulse drive singal are all unidirectional pulse, can set: the frequency of this low frequency pulse signal is as being more than or equal to 10Hz and being less than or equal to 1000Hz, the voltage magnitude of this low frequency pulse signal, for being more than or equal to 10V and being less than or equal to 250V, loads the pulse unit number Qd of this low frequency pulse signal for being more than or equal to 1 and being less than or equal to 500; The frequency of this high-frequency pulse signal is for being greater than 1kHz and being less than or equal to 25kHz, the voltage magnitude of this high-frequency pulse signal, for being more than or equal to 10V and being less than or equal to 250V, loads the pulse unit number Qg of this high-frequency pulse signal for being more than or equal to 1 and being less than or equal to 2000; The frequency of this high-frequency impulse drive singal is for being greater than 1kHz and being less than or equal to 25kHz, the voltage magnitude of the positive and negative voltage of this high-frequency impulse drive singal, for being more than or equal to 10V and being less than or equal to 250V, loads the pulse driver unit number Qg ' of this high-frequency impulse drive singal for being more than or equal to 1 and being less than or equal to 2000.
For the inventive method not comprising step a01 and a02, low frequency pulse signal and high-frequency impulse drive singal should be all bidirectional pulse or unidirectional pulse (forward or negative-going pulse), here no longer describe in detail.
In addition, in practice, the voltage magnitude of a pair low frequency pulse signal may be the same or different, the voltage magnitude of a pair high-frequency pulse signal may be the same or different, the voltage magnitude being applied to two high-frequency impulse drive singal on a pixel may be the same or different, but, for the inventive method, if the voltage magnitude of a pair low frequency pulse signal is different, or the voltage magnitude of a pair high-frequency pulse signal is different, or be applied to the words that the voltage magnitude of two high-frequency impulse drive singal on a pixel is different, display screen 10 just may can not keep DC to balance in quick aging processing procedure.Especially, if the voltage magnitude being applied to two high-frequency impulse drive singal on a pixel is different, display screen 10 is that DC is unbalanced certainly in quick aging processing procedure.Here, DC equilibrium principle is principles well-known, is not described in detail.
When reality is implemented, the voltage magnitude of the pulse signal arranged when a step is performed for each time is identical or different, and frequency is identical or different; The voltage magnitude of pulse signal is larger, and aging intensity is stronger; The frequency of pulse signal is less, and aging intensity is stronger; Under the condition that digestion time is identical, the interval time repeating step is shorter, and aging intensity is stronger.
Below to apply direct impulse (principle applying negative-going pulse is identical), the ageing process that the inventive method comprising an execution step a01 and a02 realizes and principle are described.
A01. in the first setting-up time, the direct impulse of a pair low frequency to be loaded into respectively on each column electrode 141, each row electrode 151 (such as, each column electrode 141 applies the voltage waveform be positioned in Fig. 5 A above, and each row electrode 151 applies the voltage waveform that is positioned in Fig. 5 A below).Be the bidirectional pulse of low frequency because this is superimposed upon to the direct impulse of low frequency the voltage waveform that each pixel obtains, the voltage magnitude of the direct impulse in this bidirectional pulse is Ud_a and the voltage magnitude of negative-going pulse is Ud_b, the voltage difference that this bidirectional pulse is often being gone up in a flash is all greater than threshold voltage magnitude Uth (if row-column electrode applies a pair bidirectional pulse shown in Fig. 4 A, then this is superimposed upon to bidirectional pulse the voltage waveform that each pixel obtains also is the bidirectional pulse of low frequency, the voltage magnitude of positive negative-going pulse is wherein Ud_a+Ud_b, all threshold voltage magnitude Uth is greater than at the voltage difference often gone up in a flash, smectic liquid crystal molecule then also can be made to become the out of order arrangement form being basically parallel to conductive electrode layer plane as follows), therefore, time a little while, as Fig. 8, smectic liquid crystal molecule 1 31 in mixolimnion 13 twists because of the motion drive of conducting objects 132, form the out of order arrangement form being basically parallel to conductive electrode layer plane.Because the nonisotropic of smectic liquid crystal molecule 1 31 is (namely because incident ray is different by the long optical axis of each liquid crystal molecule 131, the anaclasis angle of each liquid crystal molecule is different, thus the refractive index of each liquid crystal molecule is different), the refraction of the light of incident each smectic liquid crystal molecule 1 31 is made to there is very large difference, namely in the mixolimnion 13 of this meagre thickness, optical index produces violent change, thus light there occurs strong scattering, present astigmatism effect, the full frame of smectic liquid crystal display screen 10 is macroscopically made to be rendered as a kind of vaporific lucifuge state as acute-matte.Then, stop loading this and also 30s is continued to the direct impulse of low frequency.
A02. in the second setting-up time, the direct impulse of a pair high frequency to be loaded into respectively on each column electrode 141, each row electrode 151 (such as, each column electrode 141 applies the voltage waveform be positioned in Fig. 5 B above, and each row electrode 151 applies the voltage waveform that is positioned in Fig. 5 B below).Be the bidirectional pulse of high frequency because this is superimposed upon to the direct impulse of high frequency the voltage waveform that each pixel obtains, the voltage magnitude of the direct impulse in this bidirectional pulse is Ug_a and the voltage magnitude of negative-going pulse is Ug_b, the voltage difference that this bidirectional pulse is often being gone up in a flash is all greater than threshold voltage magnitude Uth (if row-column electrode applies a pair bidirectional pulse shown in Fig. 4 B, then this is superimposed upon to bidirectional pulse the voltage waveform that each pixel obtains also is the bidirectional pulse of high frequency, the voltage magnitude of positive negative-going pulse is wherein Ug_a+Ug_b, all threshold voltage magnitude Uth is greater than at the voltage difference often gone up in a flash, smectic liquid crystal molecule then also can be made to become following regularly arranged form), therefore, time a little while, as Fig. 9, smectic liquid crystal molecule 1 31 formation rule arrangement form in mixolimnion 13, now, the long optical axis of smectic liquid crystal molecule 1 31 is basically perpendicular to conductive electrode layer plane, the refraction of the light of incident each smectic liquid crystal molecule 1 31 does not produce acute variation, light can freely through mixolimnion 13, therefore, light is completely transmitted through smectic liquid crystal display screen, the full frame of smectic liquid crystal display screen is macroscopically made to be rendered as all-transparent state.Then, stop loading this and also 30s is continued to the direct impulse of high frequency.
A. the full frame of this smectic liquid crystal display screen 10 is divided into 4 the rectangular area G1-G4 being arranged in matrix structure, as shown in Figure 7 A, the size of G1-G4 is equal, respectively corresponding 4 × 6 pixels.
B. within first schedule time, the direct impulse of a pair low frequency to be loaded into respectively on each column electrode 141, each row electrode 151 (such as, each column electrode 141 applies the voltage waveform be positioned in Fig. 5 A above, and each row electrode 151 applies the voltage waveform that is positioned in Fig. 5 A below).Be the bidirectional pulse of low frequency because this is superimposed upon to the direct impulse of low frequency the voltage waveform that each pixel obtains, the voltage magnitude of the direct impulse in this bidirectional pulse is Ud_a and the voltage magnitude of negative-going pulse is Ud_b, the voltage difference that this bidirectional pulse is often being gone up in a flash is all greater than threshold voltage magnitude Uth (if row-column electrode applies a pair bidirectional pulse shown in Fig. 4 A, then this is superimposed upon to bidirectional pulse the voltage waveform that each pixel obtains also is the bidirectional pulse of low frequency, the voltage magnitude of positive negative-going pulse is wherein Ud_a+Ud_b, all threshold voltage magnitude Uth is greater than at the voltage difference often gone up in a flash, smectic liquid crystal molecule then also can be made to become the out of order arrangement form being basically parallel to conductive electrode layer plane as follows), therefore, time a little while, as Fig. 8, smectic liquid crystal molecule 1 31 in mixolimnion 13 twists because of the motion drive of conducting objects 132, form the out of order arrangement form being basically parallel to conductive electrode layer plane.Because the nonisotropic of smectic liquid crystal molecule 1 31, the refraction of the light of incident each smectic liquid crystal molecule 1 31 is made to there is very large difference, namely in the mixolimnion 13 of this meagre thickness, optical index produces violent change, thus light there occurs strong scattering, present astigmatism effect, macroscopically make the full frame of smectic liquid crystal display screen 10 be rendered as a kind of vaporific lucifuge state as acute-matte.Then, stop loading this to the direct impulse of low frequency.
C. first, upward 4 column electrodes 141 load respectively the direct impulse (the high-frequency impulse drive singal such as shown in Fig. 5 C) of a high frequency, simultaneously, (i.e. phase place identical with the direct impulse of this high frequency is loaded respectively on 6 row electrodes 151 on the left side, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are all identical) drive singal and load respectively on 6 row electrodes 151 on the right with the direct impulse of this high frequency only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are all identical) drive singal.So, due to identical to the high-frequency impulse drive singal that the row-column electrode corresponding to each pixel corresponding to rectangular area G1 loads, the voltage waveform that each pixel that rectangular area G1 is corresponding obtains is 0 volt, be less than threshold voltage magnitude Uth (if the high-frequency impulse drive singal loaded is bidirectional pulse, the voltage waveform that each pixel that then rectangular area G1 is corresponding finally obtains also is 0 volt, smectic liquid crystal molecules align form does not change), therefore, the arrangement form of the smectic liquid crystal molecule 1 31 in the mixolimnion 13 that rectangular area G1 is corresponding can not change, rectangular area G1 on display screen 10 still keeps original vaporific lucifuge state, as shown in Figure 7 B.Due to between the high-frequency impulse drive singal that the row-column electrode corresponding to each pixel corresponding to rectangular area G2 loads, only phase place is contrary, the voltage waveform that each pixel that rectangular area G2 is corresponding obtains is the bidirectional pulse of high frequency, in this bidirectional pulse just, the voltage magnitude of negative-going pulse is Ug ' _ a, this bidirectional pulse is all greater than threshold voltage magnitude Uth (if the high-frequency impulse drive singal loaded is bidirectional pulse at the voltage difference often gone up in a flash, the voltage waveform that each pixel that then rectangular area G2 is corresponding finally obtains also is the bidirectional pulse of high frequency, the voltage magnitude of positive negative-going pulse is wherein 2Ug ' _ a, all threshold voltage magnitude Uth is greater than at the voltage difference often gone up in a flash, smectic liquid crystal molecule then also can be made to become following regularly arranged form), therefore, time a little while, smectic liquid crystal molecule 1 31 just formation rule arrangement form in the mixolimnion 13 that rectangular area G2 is corresponding, as Fig. 9, the long optical axis of smectic liquid crystal molecule 1 31 is basically perpendicular to conductive electrode layer plane, the refraction of the light of incident each smectic liquid crystal molecule 1 31 does not produce acute variation, light can freely through, rectangular area G2 on display screen 10 is rendered as all-transparent state, as shown in Figure 7 B.In figure 7b, vaporific lucifuge state black represents, all-transparent state white represents.
Then, the direct impulse (the high-frequency impulse drive singal such as shown in Fig. 5 C) of a high frequency is loaded respectively on 4 column electrodes 141 below, simultaneously, load respectively on 6 row electrodes 151 on the left side with the direct impulse of this high frequency only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are identical) drive singal and on 6 row electrodes 151 on the right respectively load (i.e. phase place identical with the direct impulse of this high frequency, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are all identical) drive singal.So as Fig. 7 B, rectangular area G3 is rendered as all-transparent state, and rectangular area G4 is rendered as vaporific lucifuge state.The displaying principle of rectangular area G3, G4 is the same with the displaying principle of rectangular area G2, G1 respectively, no longer describes in detail.
D. stop loading any drive singal to row, column electrode 141,151 and continuing 30s.
E. the same with step b, the direct impulse of a pair low frequency is loaded into respectively on each column electrode 141, each row electrode 151, makes full framely to be rendered as vaporific lucifuge state, then stop loading this to the direct impulse of low frequency.
F. similar with step c, first, upward 4 column electrodes 141 load respectively the direct impulse (the high-frequency impulse drive singal such as shown in Fig. 5 C) of a high frequency, simultaneously, load respectively on 6 row electrodes 151 on the left side with the direct impulse of this high frequency only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are identical) drive singal and on 6 row electrodes 151 on the right respectively load (i.e. phase place identical with the direct impulse of this high frequency, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are all identical) drive singal.So as Fig. 7 C, rectangular area G1 is rendered as all-transparent state, and rectangular area G2 is rendered as vaporific lucifuge state.Then, the direct impulse (the high-frequency impulse drive singal such as shown in Fig. 5 C) of a high frequency is loaded respectively on 4 column electrodes 141 below, simultaneously, (i.e. phase place identical with the direct impulse of this high frequency is loaded respectively on 6 row electrodes 151 on the left side, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are all identical) drive singal and load respectively on 6 row electrodes 151 on the right with the direct impulse of this high frequency only phase place contrary (namely phase place is contrary, frequency, voltage magnitude, the pulse driver unit number applied, dutycycles etc. are identical) drive singal.So as Fig. 7 C, rectangular area G3 is rendered as vaporific lucifuge state, and rectangular area G4 is rendered as all-transparent state.In this step, the displaying principle of rectangular area G1-G4 no longer describes in detail, refers to associated description in step c.In fig. 7 c, vaporific lucifuge state black represents, all-transparent state white represents.
As can be seen from Fig. 7 B and Fig. 7 C, for each rectangular area, the display state that it presents in fig. 7 c and its display state presented in figure 7b are different.
G. stop loading any drive singal to row, column electrode 141,151 and continuing 30s.
H. repeat above-mentioned steps a01, a02, a-g number time, the effect of quick aging display screen can be reached.
Can obtain from reality is implemented, compared with traditional aging method (namely adopting at full frame vaporific lucifuge state and the aging method carrying out between full frame all-transparent state constantly circulating), the aging intensity of the inventive method is stronger, and aging speed is faster, aging effect is better, and reason is:
Due to the characteristic that the smectic liquid crystal itself adopted in smectic liquid crystal display screen has, when full frame all smectic liquid crystal molecules are at the same time together to the direction deflection reached required by a display state, the display state of neighbor pixel is all the same, very large 'inertia' can be there is in smectic liquid crystal molecule, deflection speed is very slow, and therefore, the aging speed of traditional aging method is slow, aging intensity is not high, and aging effect is not very desirable.
But, in the step c and f of the inventive method, when a rectangular area is to default display state change, the rectangular area be adjacent in the horizontal direction will change to the display state different with its display state, that is: if this rectangular area will to vaporific lucifuge state change (being macroscopically considered as keeping original vaporific lucifuge state), namely, smectic liquid crystal molecule corresponding to this rectangular area continues to deflect to the direction being parallel to conductive electrode layer plane, two then adjacent with this rectangular area in the horizontal direction rectangular areas change to all-transparent state, namely, smectic liquid crystal molecule corresponding to these two rectangular areas deflects from the direction being basically parallel to conductive electrode layer plane to the direction perpendicular to conductive electrode layer plane, if this rectangular area will change to all-transparent state, namely, smectic liquid crystal molecule corresponding to this rectangular area deflects from the direction being basically parallel to conductive electrode layer plane to the direction perpendicular to conductive electrode layer plane, two then adjacent with this rectangular area in the horizontal direction rectangular areas change (being macroscopically considered as keeping original vaporific lucifuge state) to vaporific lucifuge state, namely, the smectic liquid crystal molecule that these two rectangular areas are corresponding continues to deflect to the direction being parallel to conductive electrode layer plane.And the characteristic had due to smectic liquid crystal itself determines, can draw from reality is implemented, an impetus can be produced mutually between smectic liquid crystal molecule that the smectic liquid crystal molecule deflected to the direction perpendicular to conductive electrode layer plane is adjacent, that continue to the direction deflection being parallel to conductive electrode layer plane, the deflection speed of smectic liquid crystal molecule deflect to the direction perpendicular to conductive electrode layer plane can be accelerated and accelerate the deflection speed of the smectic liquid crystal molecule deflected to the direction being parallel to conductive electrode layer plane.In addition, the characteristic had due to smectic liquid crystal itself determines, when a rectangular area is to default display state change, smectic liquid crystal molecule corresponding to that be adjacent, that display state is different with its default display state rectangular area (referring to the rectangular area that display state does not change at this moment) also can produce an impetus to the deflection of smectic liquid crystal molecule corresponding to this rectangular area, accelerates the deflection speed of smectic liquid crystal molecule corresponding to this rectangular area.Thus, the aging intensity of the inventive method improves, and aging speed accelerates, and aging effect improves.
In the present invention, threshold voltage magnitude Uth makes smectic liquid crystal molecule be driven magnitude of voltage arrangement form occurring and changes, and belong to known concept, it is determined according to the composition of mixolimnion 13 and thickness, is generally more than 5V.
The above-mentioned know-why being preferred embodiment of the present invention and using; for a person skilled in the art; when not deviating from the spirit and scope of the present invention; any based on apparent changes such as the equivalent transformation on technical solution of the present invention basis, simple replacements, all belong within scope.
Claims (8)
1. a smectic liquid crystal display screen quick aging method, this smectic liquid crystal display screen comprises the first base layer and the second base layer, the mixolimnion comprising smectic liquid crystal and conducting objects is provided with between the first base layer and the second base layer, first base layer is provided with the first conductive electrode layer towards the side of mixolimnion, second base layer is provided with the second conductive electrode layer towards the side of mixolimnion, first conductive electrode layer is made up of M column electrode, second conductive electrode layer is made up of N number of row electrode, this M column electrode is mutually orthogonal with this N number of row electrode and form the pixel array of M × N, it is characterized in that: the method comprises and repeats following steps a-g at least one times:
A. the full frame of this smectic liquid crystal display screen is divided into P × Q the rectangular area being arranged in matrix structure, P, Q be positive integer and P, Q are different time be 1;
B. within first schedule time, a pair low frequency pulse signal is loaded on each column electrode, each row electrode respectively, makes the full frame of this smectic liquid crystal display screen be rendered as vaporific lucifuge state, then stop loading this to low frequency pulse signal;
C. within the first enforcement time, corresponding high-frequency impulse drive singal is loaded in the corresponding time period of row, column electrode corresponding to each rectangular area divided in step a within this first enforcement time, each rectangular area is made to be rendered as vaporific lucifuge state or all-transparent state, wherein: the display state that all rectangular areas that the display state that each rectangular area presents is adjacent present is different, be in row, column electrode corresponding to all rectangular areas of same level position at one time section load corresponding high-frequency impulse drive singal respectively, successively turntable driving is carried out to the rectangular area being in each horizontal level, wherein: when turntable driving is in the rectangular area of a horizontal level, corresponding high-frequency impulse drive singal is loaded to the column electrode that the rectangular area being in this horizontal level is corresponding, simultaneously to being in this horizontal level, row electrode corresponding to the rectangular area of vaporific lucifuge state will be presented and load the drive singal identical with this high-frequency impulse drive singal, and to being in this horizontal level, row electrode corresponding to the rectangular area of all-transparent state will be presented load and this high-frequency impulse drive singal drive singal that only phase place is contrary,
D. stop loading high-frequency impulse drive singal to row, column electrode and continuing a setting-up time;
E. within second schedule time, a pair low frequency pulse signal is loaded on each column electrode, each row electrode respectively, makes the full frame of this smectic liquid crystal display screen again be rendered as vaporific lucifuge state, then stop loading this to low frequency pulse signal;
F. within the second enforcement time, corresponding high-frequency impulse drive singal is loaded in the corresponding time period of row, column electrode corresponding to each rectangular area divided in step a within this second enforcement time, each rectangular area is made to be rendered as vaporific lucifuge state or all-transparent state, wherein: the display state presented in the display state that each rectangular area presents and step c is different, be in row, column electrode corresponding to all rectangular areas of same level position at one time section load corresponding high-frequency impulse drive singal respectively, successively turntable driving is carried out to the rectangular area being in each horizontal level, wherein: when turntable driving is in the rectangular area of a horizontal level, corresponding high-frequency impulse drive singal is loaded to the column electrode that the rectangular area being in this horizontal level is corresponding, simultaneously to being in this horizontal level, row electrode corresponding to the rectangular area of vaporific lucifuge state will be presented and load the drive singal identical with this high-frequency impulse drive singal, and to being in this horizontal level, row electrode corresponding to the rectangular area of all-transparent state will be presented load and this high-frequency impulse drive singal drive singal that only phase place is contrary,
G. stop loading high-frequency impulse drive singal to row, column electrode and continuing a setting-up time.
2. quick aging method as claimed in claim 1, is characterized in that:
Also comprise before described step a and repeat following steps a01-a02 at least one times:
A01. in the first setting-up time, a pair low frequency pulse signal is loaded on column electrode described in each, row electrode described in each respectively, make the full frame of described smectic liquid crystal display screen be rendered as vaporific lucifuge state, then stop loading this and also a setting-up time is continued to low frequency pulse signal;
A02. in the second setting-up time, a pair high-frequency pulse signal is loaded on column electrode described in each, row electrode described in each respectively, make the full frame of described smectic liquid crystal display screen be rendered as all-transparent state, then stop loading this and also a setting-up time is continued to high-frequency pulse signal.
3. quick aging method as claimed in claim 1, is characterized in that:
In described step b and e, described a pair low frequency pulse signal only phase place is contrary, and the dutycycle of described low frequency pulse signal and described high-frequency impulse drive singal is 50%.
4. quick aging method as claimed in claim 2, is characterized in that:
In described step b, e and a01, only phase place is contrary for described a pair low frequency pulse signal;
In described step a02, only phase place is contrary for described a pair high-frequency pulse signal;
The dutycycle of described low frequency pulse signal, described high-frequency pulse signal and described high-frequency impulse drive singal is 50%.
5. quick aging method as claimed in claim 3, is characterized in that:
Described a pair low frequency pulse signal is bidirectional pulse; The cycle of a low frequency pulse signal in described a pair low frequency pulse signal is Td, be made up of the Qd connected continuously two-way low-frequency pulse unit, this two-way low-frequency pulse unit is connected successively formed by the positive voltage of a lasting td1 time, the negative voltage of a lasting td2 time, the voltage magnitude of this positive voltage and negative voltage is equal, Td=td1+td2; Described this is all less than threshold voltage magnitude to the voltage magnitude of low frequency pulse signal, and the voltage magnitude obtained after this voltage magnitude to low frequency pulse signal described superposition is greater than threshold voltage magnitude;
Described high-frequency impulse drive singal is bidirectional pulse, its cycle is Tg ', and be made up of the individual two-way high-frequency impulse driver element of the Qg ' connected continuously, this two-way high-frequency impulse driver element is connected successively formed by the positive voltage of lasting tg ' 1 time, the negative voltage of lasting tg ' 2 time, the voltage magnitude of this positive voltage and negative voltage is equal, Tg '=tg ' 1+tg ' 2; The voltage magnitude of described high-frequency impulse drive singal is less than threshold voltage magnitude, and the voltage magnitude of the described high-frequency impulse drive singal of twice is greater than threshold voltage magnitude.
6. quick aging method as claimed in claim 4, is characterized in that:
Described a pair low frequency pulse signal is bidirectional pulse; The cycle of a low frequency pulse signal in described a pair low frequency pulse signal is Td, be made up of the Qd connected continuously two-way low-frequency pulse unit, this two-way low-frequency pulse unit is connected successively formed by the positive voltage of a lasting td1 time, the negative voltage of a lasting td2 time, the voltage magnitude of this positive voltage and negative voltage is equal, Td=td1+td2; Described this is all less than threshold voltage magnitude to the voltage magnitude of low frequency pulse signal, and the voltage magnitude obtained after this voltage magnitude to low frequency pulse signal described superposition is greater than threshold voltage magnitude;
Described a pair high-frequency pulse signal is bidirectional pulse; The cycle of a high-frequency pulse signal in described a pair high-frequency pulse signal is Tg, be made up of the Qg connected continuously two-way high-frequency impulse unit, this two-way high-frequency impulse unit is connected successively formed by the positive voltage of a lasting tg1 time, the negative voltage of a lasting tg2 time, the voltage magnitude of this positive voltage and negative voltage is equal, Tg=tg1+tg2; Described this is all less than threshold voltage magnitude to the voltage magnitude of high-frequency pulse signal, and the voltage magnitude obtained after this voltage magnitude to high-frequency pulse signal described superposition is greater than threshold voltage magnitude;
Described high-frequency impulse drive singal is bidirectional pulse, its cycle is Tg ', and be made up of the individual two-way high-frequency impulse driver element of the Qg ' connected continuously, this two-way high-frequency impulse driver element is connected successively formed by the positive voltage of lasting tg ' 1 time, the negative voltage of lasting tg ' 2 time, the voltage magnitude of this positive voltage and negative voltage is equal, Tg '=tg ' 1+tg ' 2; The voltage magnitude of described high-frequency impulse drive singal is less than threshold voltage magnitude, and the voltage magnitude of the described high-frequency impulse drive singal of twice is greater than threshold voltage magnitude.
7. quick aging method as claimed in claim 3, is characterized in that:
Described a pair low frequency pulse signal is direct impulse; The cycle of a low frequency pulse signal in described a pair low frequency pulse signal is Td, be made up of Qd the forward low-frequency pulse unit connected continuously, this forward low-frequency pulse unit connects successively and forms by the positive voltage of a lasting td1 time, 0 volt of voltage of a lasting td2 time, Td=td1+td2; Described this is all greater than threshold voltage magnitude to the voltage magnitude of low frequency pulse signal;
Described high-frequency impulse drive singal is direct impulse, its cycle is Tg ', be made up of the Qg ' connected continuously individual forward high-frequency impulse driver element, this forward high-frequency impulse driver element connects successively and forms by the positive voltage of lasting tg ' 1 time, 0 volt of voltage of lasting tg ' 2 time, Tg'=tg ' 1+tg'2; The voltage magnitude of described high-frequency impulse drive singal is greater than threshold voltage magnitude.
8. quick aging method as claimed in claim 4, is characterized in that:
Described a pair low frequency pulse signal is direct impulse; The cycle of a low frequency pulse signal in described a pair low frequency pulse signal is Td, be made up of Qd the forward low-frequency pulse unit connected continuously, this forward low-frequency pulse unit connects successively and forms by the positive voltage of a lasting td1 time, 0 volt of voltage of a lasting td2 time, Td=td1+td2; Described this is all greater than threshold voltage magnitude to the voltage magnitude of low frequency pulse signal;
Described a pair high-frequency pulse signal is direct impulse; The cycle of a high-frequency pulse signal in described a pair high-frequency pulse signal is Tg, be made up of Qg the forward high-frequency impulse unit connected continuously, this forward high-frequency impulse unit connects successively and forms by the positive voltage of a lasting tg1 time, 0 volt of voltage of a lasting tg2 time, Tg=tg1+tg2; Described this is all greater than threshold voltage magnitude to the voltage magnitude of high-frequency pulse signal;
Described high-frequency impulse drive singal is direct impulse, its cycle is Tg ', be made up of the Qg ' connected continuously individual forward high-frequency impulse driver element, this forward high-frequency impulse driver element connects successively and forms by the positive voltage of lasting tg ' 1 time, 0 volt of voltage of lasting tg ' 2 time, Tg '=tg ' 1+tg ' 2; The voltage magnitude of described high-frequency impulse drive singal is greater than threshold voltage magnitude.
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| DE10336023A1 (en) * | 2003-08-01 | 2005-02-17 | Clariant International Limited | New fluorinated heterocycles, e.g. 1,1,8,10-tetrafluoro-2,7-dialk(ox)yl-2,3-dihydro- 1H-9-oxacyclopenta(b)fluorene compounds, used as components of liquid crystalline mixtures for electro-optical displays |
| CN101840090A (en) * | 2010-01-29 | 2010-09-22 | 苏州汉朗光电有限公司 | Dynamic scanning drive method for smectic state liquid crystal display screen |
| CN101840085A (en) * | 2009-07-21 | 2010-09-22 | 苏州汉朗光电有限公司 | Scanning driving method for smectic liquid crystal display screen |
| CN101840086A (en) * | 2009-07-21 | 2010-09-22 | 苏州汉朗光电有限公司 | Method for getting rid of smectic state LCD image traces |
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| US20020054007A1 (en) * | 2000-07-31 | 2002-05-09 | Yasufumi Asao | Process for producing liquid crystal device and driving method of the device |
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| CN101840085A (en) * | 2009-07-21 | 2010-09-22 | 苏州汉朗光电有限公司 | Scanning driving method for smectic liquid crystal display screen |
| CN101840086A (en) * | 2009-07-21 | 2010-09-22 | 苏州汉朗光电有限公司 | Method for getting rid of smectic state LCD image traces |
| CN101840090A (en) * | 2010-01-29 | 2010-09-22 | 苏州汉朗光电有限公司 | Dynamic scanning drive method for smectic state liquid crystal display screen |
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