CN1302425A - Display - Google Patents

Abstract

An excellent display of both moving image and still image is performed particularly in a hold-type display device. In order to display an moving image, the generation of an intermediate image, a driving method or an illuminating method appropriate for a moving image such as an intermittent drive are employed. Furthermore, those can be combined. Meanwhile, an ordinary method of driving liquid crystal and the like is employed in the case of displaying a still image such as an OA screen. It is detected that an image to be displayed is a moving image or a still image so that the corresponding driving is performed. All possible devices are considered for displaying an image with gray scale.

Description

Display device

Technical field

The present invention relates to the maintenance liquid crystal indicator, particularly relate to the display device of maintenance, such as liquid crystal indicator, it had both shown dynamic image, divided dynamically image and still image again and showed.

Background technology

(general background technology)

Adopt the response of liquid crystal indicator of TN liquid crystal etc. of existing active array type slower, but accelerate significantly along with the liquid crystal materials such as exploitation of the liquid crystal of in recent years OBC type progressive shows the response time.

Thus, people research, the exploitation liquid crystal indicator application in large-scale tv machine etc., but the driving method of this moment is approaching.That is, during the high speed in liquid crystal indicator showed, pixel carried out the demonstration of maintenance.In addition here because so detailed description in the problem list of references 1 below of maintenance display element in this manual, is carried out the description of the irreducible minimum of necessity to it.

List of references 1 Li Tiantai city youth " image quality of the display mode of maintenance display and dynamic image display device " liquid crystal association, the 1st the pre-original text of LCD forum (1998-08)

At first, demonstration is described to maintenance.

Shown in Fig. 1 (a), at CRT (cathode-ray tube (CRT), be Brown tube) etc. impulse type show, for each pixel, only send the high light that is used to show in the time of few part of 1 field interval (showing the needed time of 1 width of cloth picture, is 1/60 second at present in the common television for play etc.).Shown in Fig. 1 (b), in liquid crystal indicator, in 1 field interval, remain the light that is used to show basically.

In addition, in this Fig. 1 (b), solid line is the change of luminous intensity of desirable occasion, and dotted line is represented actual change of luminous intensity.In addition, only illustrate in a schematic way, but in fact, the brightness of the CRT shown in this Fig. 1 (a) is higher than the brightness of the liquid crystal shown in Fig. 1 (b) all the time according to the situation of putting down in writing the space.

But, people know, occasion in the maintenance demonstration, otherwise from pixel begin luminous to the time that becomes specified luminous intensity or from the beginning dim light to response time of the time of complete deepening shown in solid line like that, be such as 0ms apace, and if show dynamic image, because the integrating effect of people's eyes, the response that produces fuzzy or picture is slow (about this situation, also describing in detail) in the above referred-to references.In addition, here, the integrating effect of people's eyes refers to dynamic image that several pictures are formed or image averaging and physiology (psychology) effect recognized, is a kind of of residue image effect.

Below with reference to Fig. 2 its reason is carried out open-and-shut description.

In (1) of Fig. 2, the upper left black ball 61 that is shown in display surface 191 is moved to the position of the black ball 62 of bottom right in next occasion.In this occasion, shown in Fig. 2 (2), if be CRT, then only during the minimum part of 1 field interval shown in the arrow up and down, black ball 61 is shown in the upper left side, and during other, shown in right-hand, black ball does not show.Then, during the minimum part of next field interval, black ball 62 is shown in the position, bottom right.In this occasion, because people's eyes also recognize along with the flowing of the front and back of not shown image, black ball moves to the lower right, so see successfully that also black ball moves to the lower right from the upper left side.

But, in liquid crystal indicator, because by 1 field interval, black ball 61 is shown in the upper left side of picture continuously, so, also be difficult to confirm moving of black ball even being next field interval black ball 62 is shown under the bottom-right situation.That is, though in brains, recognize along with the flowing of unshowned image in the top, black ball towards right-handly move, owing in fact its during certain, show continuously static, so can be in brains confusion reigned.Consequently, produce the situation that visual response fuzzy, that move waits more slowly.

In addition, about this problem, following list of references 2 is described, and thus, its specific descriptions is omitted.

List of references 2 " information science is put down on November 20th, 10 with the 62nd research association of organic material the 142nd A portion of council meeting (liquid crystal material) the 71st B portion of research association meeting (intelligent organic material) Research on Contract meeting data JSPS "

Also have, people know, in order to improve the fuzzy of the image of such maintenance in showing, following method is effective.

(1) retention time of shortening display light;

(2) as much as possible display light is arranged at along the picture position that moves of image.

In order to shorten the retention time of (1), as described in the flat 9-325716 document of TOHKEMY, liquid crystal diaphragm is set in the somewhere of display device, can be according to keeping synchronous mode to limit opening time with the vertical synchronization that is used to show.In addition, as other mechanism, same as list of references 2 is described like that, and back of the body irradiation is kept synchronously, should carry on the back irradiation according to pulse mode and brighten and extinguish, i.e. realization is glistened.

But, in these methods, the 1st, the utilization ratio of light descends.The 2nd, back of the body irradiation system etc. are complicated, cost is higher.The 3rd, present liquid crystal diaphragm is difficult to realize at a high speed.

In addition, in driving method, the method as the restriction aperture opening ratio as described in following list of references 3, list of references 4, also comprises the batch (-type) driving method.

List of references 3: equality " about the dynamic image display device of LCD " liquid crystal association, the 1st the pre-original text of LCD forum (1998-08)

List of references 4: middle village etc. " the corresponding new LCD in wide visual angle of dynamic image " the 1st liquid crystal forum in 1998

But, in these methods, 1 (time that shows 1 width of cloth picture) is divided into a plurality of sons field equally, the black picture is inserted as the son field.Thus, most cases is, must make the driving mechanism high speed motion, and this is difficult to realize aspect circuit.

In addition, people know, as the method for (2), field frequency are improved, and such as becoming 2 times, obtain higher effect thus.

But in order to form the field frequency of 120Hz, IC that graphics driver is used etc. causes burden.In addition, because display frame quantity doubles, so in the picture that increases, show the compensation made according to the intermediate value of original picture and the picture that next is original occasion with picture etc., owing to necessarily require such circuit, be motion compensation, so the scale of signal processing circuit also increases, cost rises.

In addition, also have, but this method generally adopts voltage to adjust method as the gray scale explicit representation that solves the countermeasure of from the response aspect of picture, watching more slowly.This method refers to corresponding to gradation data, adjusts the method for the magnitude of voltage that is applied.

In addition, as plasma display, in the display that 2 values that only can carry out discharge condition and absence of discharge state show, adopt time-division gray scale explicit representation.Time-division gray scale explicit representation refers to be divided into a plurality of son with 1, carries out gray scale according to the difference of the total amount of the time that should the child field brightens and shows., carrying out the occasion that gray scale shows according to 8 bits here, is 1: 2: 4 by being divided into the length ratio: 8: 16: 32: 8 son fields of 64: 128, and brighten accordingly, extinguish, its integral body is carried out gray scale and is shown.

At this moment, each Bit data that brightens, extinguishes when gradation data is shown according to 8 digital bits of each son carries out.

In addition, the display device as adopting liquid crystal has the porjection type display.It is made of light source portion, display element and lens section, and the light beam that the output of this light source portion is substantially parallel, this display element are corresponding to shown image, control the amount of beam that sees through, and this lens section carries out projection to light beam.Above-mentioned display element generally adopts liquid crystal display cells, but also has the occasion that adopts the DLP element that the angle make small catoptron changes.But this projection type display also produces same problem.

In addition, general, the liquid crystal plasma display or the EL display that carry out the demonstration of maintenance all produce same problem.

Above mainly the slack-off problem of the demonstration in the maintenance display device is described, but, in the display of the gray scale display mode of cutting apart in the employing time such, have the gray scale that in dynamic image shows, is called false contouring and show such problem unevenly such as plasma display.

(background technology of the problem that will solve from the present invention)

Thus, the 1st, people wish to develop the maintenance display device of following liquid crystal indicator or projection type liquid crystal indicator (display) etc., wherein when showing dynamic image, the rough sledding that does not have integrating effect to cause, image, picture or surface are bright in addition, and this device is simple, and cost is lower.

In addition, people wish to develop following technology, that is, even still simple in this technology of countermeasure of implementing basically to be advocated in the past, cost is lower.

The 2nd, though adopt the demonstration of dynamic image of the technology of these existing dynamic image correspondences to have the multinomial problem that should solve, but the occasion that no matter shows dynamic image or image, all exploit one's power, the demonstration that is well on, and in contrast, to be used for the occasion that such liquid crystal indicator etc. is used for the demonstration of still image, such as in the occasion that is used for OA picture etc. or show the occasion of still image, just lose following aspect, that this aspect refers to beat the fatigue etc. of the eyes that cause existing liquid crystal indicator had but the demonstration that do not have among the CRT for the eyes gentleness.

But, follow the progress of OA in recent years, the requirement of the display device sharing of various devices such as game machine, personal computer, word processor, televisor increases.In addition, different with the America and Europe, China that residence status is relatively poor, people express bigger expectation to following display device, and this display device adopts and forms the liquid crystal of thin large-area display surface different with CRT easily.

Thus, people wish to occur following maintenance display device, particularly liquid crystal indicator, wherein as CRT, can keep on one side not having beat, the easiness of the liquid crystal indicator of high light causes situation such as at random itself, carrying out dynamic image on one side shows, identical with the past in addition, also can show still image.

In addition, even people wish to develop under the situation of high definition broadcast etc., still can show and device that price is lower.

Also having, is such making field frequency double the corresponding occasion, particularly high definition broadcast etc. that show of such dynamic image, necessarily requires to be used to carry out the circuit of various processing etc., and in any case, the price of device itself is higher.Thus, people wish to develop and the price that high definition is used is lower and the liquid crystal indicator of demonstration suitable still image.

Also have,, still do not produce the display device of false contouring even people wish to develop under the situation that is not maintenance.

The objective of the invention is to solve the above problems, the present invention relates to display device, the display device of maintenance particularly, especially relate to the display device that adopts liquid crystal, because in dynamic image, video, do not have that integrating effect causes fuzzy, response is slower, so pass by relatively, can simply, easily make intermediate image, or make the black image.In addition, same, the present invention can find out the character of above-mentioned fuzzy, the incidental image of low-response and be solved.

In addition, the present invention relates to show (maintenance) display device of dynamic image and still image,, adopt the driving or the illumination of dynamic image correspondence wherein in the occasion that shows dynamic image, occasion showing still image switches to driving, the illumination of still image correspondence.

In addition, the present invention is according to judging that the pictorial data that should show is dynamic image, or still image, carries out the appropriate display aspect according to this judgement and has descended time.Specifically, form following structures.

In the 1st invention, adopt the display device of liquid crystal etc. to be characterised in that this device comprises: the dynamic image driving mechanism, its in the display surface of the display element that particularly adopts maintenance, carry out the dynamic image main body, i.e. the demonstration of suitable dynamic image; The still image driving mechanism, it similarly carries out the demonstration of still image main body; Switching mechanism, its by by user's operation, in advance communication protocol with in the automatic detection carried out of the program of establishing etc., to shown image is that dynamic image (image) or still image are judged, suitably switches above-mentioned two mechanisms by the method for regulation.Thus, has following effect.

Above-mentioned dynamic image is the occasion of dynamic image with driving mechanism at the image that should show, in indication mechanism, carries out the dynamic image main body demonstration of (being fit to dynamic image) (according to the situation of scene, also can have the situation that shows still image).Still image carries out the demonstration of still image main body in the same manner with driving mechanism.Above-mentioned switching mechanism,, switches two mechanisms according to the image that should show by the method for the regulation of data that write down during fabrication or program etc. by only.

In another invention, the indication mechanism of maintenance is transmission-type, reflection-type, in a word for adopting the mechanism of liquid crystal.In addition, dynamic image is included in when receiving picture intelligence etc. for demonstration, can carries out the dynamic image liquid crystal drive portion of the liquid crystal drive of dynamic image correspondence with driving mechanism, or the dynamic image of illumination that carries out the dynamic image correspondence is with the illumination drive division.In addition, obviously, also can have above-mentioned both.Thus, has following effects.

Dynamic image with the dynamic image of driving mechanism with liquid crystal drive portion when receiving the picture intelligence of common television for play etc. (when perhaps receiving the indication of answering the displayed image signal etc.), carry out the liquid crystal drive of dynamic image correspondence.Equally, dynamic image carries out the illumination of dynamic image correspondence with the illumination drive division.Another invention is characterised in that dynamic image is a high field frequency display driver portion with liquid crystal drive portion, and it than the occasion that still image shows, improves 1/60 second etc. field frequency the regulation of 2 times of grades and doubly carry out the image demonstration.Thus, has following effects.

Dynamic image is a high field frequency display driver portion with liquid crystal drive portion, thus, makes field frequency be higher than the occasion that still image shows and carries out image demonstration.In addition, thus, make intermediate image as required, or form black or do not have the grey of adverse effect to show the residue image effect 1 second half section.

In going back an invention, driving with liquid crystal drive portion is the batch (-type) driving display driver portion that drives display frame by batch (-type).Thus, dynamic image is the right half part that is of left-half, odd number with the image of liquid crystal drive portion by even number, and the batch (-type) of replacing about also suitably making in addition etc. drives, and shows dynamic image.Obviously need, also can increase the intensity of back of the body irradiation as required etc.

In another invention, dynamic image comprises the short-term that brightens than display light that also lack, that make light emitting diode, electric light etc. during corresponding with the field frequency portion that brightens with the illumination drive division.Thus, dynamic image with the illumination drive division than also short during corresponding with 1/60 second etc. field frequency, such as only display light being brightened at initial 1/90 second etc.In addition, wherein,, also can be the demonstration of last 1/90 second or 1/120 second though only initial 1/120 second etc. demonstration is a principle.

In another invention, when dynamic image is included in the dynamic image demonstration with the illumination drive division, the pulse that brightens according to pulse mode at the every width of cloth picture portion that brightens.Thus, brighten in the portion in the pulse of dynamic image with the illumination drive division, when carrying out the dynamic image demonstration, if there is not the image of adverse effect for remaining image effect, then form by a plurality of images, but, will brighten as the light of the pulsed of back of the body irradiation order according to the regulation of extinguishing such as last 1/120 second of 1 field frequency etc. at every width of cloth picture of each image.

In invention also, above-mentioned switching mechanism is following mechanism for automatically switching, and the occasion of its displayed image when picture intelligence receives etc. detects this signal, automatically switches to above-mentioned dynamic image driving mechanism.Thus, has following effect.

Above-mentioned switching mechanism is the mechanism for automatically switching that forms one with storer, CPU, personal computer etc., and when receiving picture intelligence, program detects this signal according to the rules, automatically switches to the dynamic image driving mechanism.In addition, thus, each several parts such as indication mechanism, back of the body irradiation are carried out suitable indication.

In invention again, mechanism for automatically switching is a Differential Detection type mechanism for automatically switching, it at least according to observing the picture faster that moves with the difference (partial images that comprises certain location or character) of last picture, carried out the corresponding driving of dynamic image before showing.Thus, has following effect.

Mechanism for automatically switching is a Differential Detection type mechanism for automatically switching, its at least according to the difference of last picture, by other occasion, also detect the switching of ad playing, scene etc., before showing, observe the picture faster that moves, carry out the corresponding driving of dynamic image according to the mode of seeing easily.So though have the exception of the demonstration of giving the correct time etc., Shi Ji demonstration is slow at least 1 in principle.

In another invention, above-mentioned still image comprises the common portion that brightens with driving mechanism, its when showing still image, during corresponding with field frequency in, display light is brightened.

Thus, still image with driving mechanism when showing still image (in addition, the occasion of the dynamic image that motion according to circumstances is slower etc.), according to the mode of seeing easily, during corresponding with field frequency in, display light is brightened.

In another invention, according to the mode of motion faster that can follow the tracks of dynamic image fully, the element of liquid crystal indicator etc. comprises the high-speed response element, and the response time of this element is at least than fast (be 1/60 second in principle, according to circumstances can be 1/120 second) during 1.

Specifically, have the high-speed response element of ocb mode etc., thus, the response time is fast during than at least 1 of 10ms etc.

In going back an invention, it comprises: decision mechanism, and its corresponding pictorial data that shows is that dynamic image or still image are judged; Pars intermedia dynamic image driving mechanism, this mechanism is when decision mechanism is judged to be dynamic image, with the part of display frame, particularly also comprise the part of the more pars intermedia of motion separated with its periphery, carry out the demonstration of dynamic image main body, carry out the demonstration of the dynamic image main body that is fit to of demonstration etc. of the dynamic image main body of high-definition mode.

Thus, has following effect.

Decision mechanism judges that the pictorial data that should show is dynamic image or still image.When decision mechanism is judged to be dynamic image, pars intermedia dynamic image driving mechanism will comprise also that the part of the centre of display surface separates the demonstration of the dynamic image main body that is fit to its peripheral part.So, at the periphery of display surface, carry out the demonstration of the dynamic image of still image main body, or the image that carries out high definition is not the demonstration etc. of the dynamic image main body of high-definition mode but common pattern.In addition, even under the situation of dynamic image,, obviously also can have the performance of the demonstration of carrying out the still image correspondence in motion or motion vector occasion seldom.

In invention again, be not limited to maintenance, in the general gray scale display mode of display device, adopt voltage to adjust method simultaneously and the time is cut apart the gray scale explicit representation.If particularly the cycle of the picture intelligence in the input and display device is 1, then be divided into a plurality of sons field with this 1, adopt the time of " a plurality of sub-number of fields-1 " bit to cut apart the gray scale explicit representation.

In another invention, from the comprehensive aspect of simplification, cost and effect, sub-number is 2 (in principle for uniformly-spaced).Obviously, also can have content, form the performance of unequal interval according to broadcasts such as CM programs.

In another invention, in gray scale shows, in sub-number such as being 2 occasions, when gray scale less than 50% the time, do not carry out the demonstration of 1 second half section.Thus, solve the situation of low-response, integrating effect.

In another invention, 1 sub is that the gray scale that brightens (if be common liquid crystal indicator, being common brightening, 100% brightness), extinguishes (0%) shows, and the time of brighten (100%) is adjusted according to the gray scale of being distributed in other son field.In addition, the absolute light intensity (100% value situation) of back of the body irradiation itself also can suitably increase and decrease according to the situation of the surplus of the power supply of type etc., the degree of room lighting etc.

In going back an invention, owing to must show the dynamic image of 1 second 60 frame, so the response time of the element of each pixel of display device is less than 16ms.

In invention again, high-speed response mechanism adopts the liquid crystal of ocb mode.

In another invention, the solution mechanism of the low-response that causes as integrating effect adopts optical profile type or mechanical type diaphragm, thereby (different with the occasion of image, do not show during 1 last in principle).

In another invention, the renewal of each image of shown dynamic image, video is kept synchronously with blocking of light by diaphragm.Specifically, from the pixel column of (be not from a left side at present, the right side, down) top, the display surface at liquid crystal etc. upgrades successively, makes this renewals and diaphragm (or peristome of diaphragm mechanism) synchronous by maintenance.Thus, such as after just upgrading,, only light is passed through preceding half section grade of 1 from new pixel.

In invention also, diaphragm is for having the dimmer in opening (hole), in this opening, has half the height of display surface such as (diffusion of light relatively, parallel) by light.

In invention again, but the liquid crystal of the high-speed response by strong irritability pattern, ocb mode, backscatter mode etc. forms diaphragm.

In another invention, adopt beam flying mechanism, adopt such as rotating mirror specifically, to replace diaphragm.

In another invention,, adopt the prismatic catoptron of small-sized rotation that changes the angle of the catoptron on the semiconductor by electronic mode, promptly so-called microreflection device as rotating mirror.

In invention also, diaphragm for the reduced size of liquid crystal display part (membranous part that comprises porjection type) same degree.

In invention again, display part adopts can realize adopting less than the liquid crystal of the pattern of the high-speed response of 30ms etc., specifically ocb mode etc.

In another invention, in the maintenance display device, upgrade successively 1 second, particularly during the demonstration of dynamic image, the image of the image of 1/30～1/60 degree, in order to improve motion response, by original () pictorial data itself, make intermediate image, be inserted between the original image.

Thus, original image should show once according to per 1/60 second, but but shows according to 1/120 second, and between original image, and the intermediate image that the original image by front and back etc. is made showed according to 1/120 second.So the whole demonstration time is constant.

In going back an invention, 2 original pictorial data of the front and back that should insert are adopted in the making of intermediate image, or except adopting 2 original images, also adopt the pictorial data of the front and back of 2 original images.In addition, from a high speed and the viewpoint that correctly responds of time aspect, also can the past 2 image (not adopting the image of back) extrapolations and make intermediate image.

In another invention, in the making of intermediate image, when displayed image, pay close attention to the motion vector of people's the easy identification of eyes.Specifically, pay close attention to moving of the average brightness part of each several part of bright spot in the image, dim spot, image or the part of motion etc. etc.In addition, thus, as required, also adopt the compress technique (MPEG etc.) of image.

Also have, extract several pixels of preposition and relatively each pixel leave the pixel of assigned position, calculate the vector sum of adjusting the distance and being weighted, also can be according to the difference of the absolute value of the total of the vector sum of the picture of front and back, calculating kinematical vector.

In invention again, in order to realize the good demonstration of the dynamic image in the maintenance display device, in principle, this keeps the state of regulation each pixel in 1, such as bright, dark etc. (perhaps become existing like that), but it is to form according to the mode of last forfeiture show state at each.Thus, form following structures, have following effect.

According to the specification of display surface, according to several row in length and breadth, several sections, in addition the display element of each pixel of arranging according to plane or multilayer (such as G, H, box) make light transmission by applying electric field, having brought into play, with the display performance of its effect of blocking etc.But, in order to show, if the electric field applying mechanism applies electric field, then pass by (in fact how much certain minimizing is arranged, but in fact) in 1 field time interval, make this electric field keep certain.

Yet according to the present invention, this electric field is eliminated by the discharge of any at every turn by discharge mechanism.Thus, at least in each, last at 1, electric field is 0, according to circumstances, becomes seldom, and equals not produce the less value etc. of integrating effect.

In addition, thus, obtain the improvement of the low-response of dynamic image.

In another invention, indication mechanism is formed on the active-matrix substrate of TFT with driving element etc.

In invention also, display element is the liquid crystal indicator that adopts liquid crystal, EL display device, liquid crystal plasma display etc.

In another invention, liquid crystal layer has energising or resistance to a certain degree, acts on electric field on the last inferior electrode of liquid crystal layer thus by electric current mobile in liquid crystal layer itself, eliminates in 1 interval etc.

In invention again, the conductance of liquid crystal is greater than 10-10 Siemens.

In another invention, last inferior any one electrode or the electric field on the transverse electrode that act on liquid crystal layer can be eliminated by the ground wire that makes electric current flow through substrate or to be formed on the substrate.

In another invention, auxiliary capacity is paid special attention to (having descended time), thereby prevent the slow-response of dynamic image.

In invention also, the liquid crystal of paying close attention to display surface is a reference white, in the standard black which.

In invention again, at each picture or each horizontal pixel row, the alternating polarity ground variation that electric field is applied.Thus, each flip-flop of deciding the time interval of degree is 0, avoids charging.In addition, also form softer demonstration.

The change figure of state of the brightness of Fig. 1 during for the demonstration of expression CRT and LCD;

Fig. 2 is the figure of reason that is used for illustrating the low-response of the action that maintenance shows;

Fig. 3 is the structural portion of the major part of the 1st embodiment of the present invention;

The figure of the intermediate image state that Fig. 4 adopts for the demonstration among expression the 2nd embodiment of the present invention;

Fig. 5 is the figure of the relation between the streams data of carrying out picture displayed, time of arrival and demonstration time in expression the foregoing description;

Fig. 6 is the structural drawing of major part of the liquid crystal indicator of the foregoing description;

Fig. 7 is the structural drawing of major part of the liquid crystal indicator of the 3rd embodiment of the present invention;

Fig. 8 carries out the figure of the content of the image that batch (-type) shows in the above-described embodiments successively for expression;

Fig. 9 is the structural drawing of major part of the liquid crystal indicator of the 4th embodiment of the present invention;

Figure 10 is the structural drawing of major part of the liquid crystal indicator of the 5th embodiment of the present invention;

Figure 11 is the structural drawing of major part of the liquid crystal indicator of the 6th embodiment of the present invention;

Figure 12 is for representing the figure of the display packing of the 7th embodiment of the present invention in a schematic way;

The figure of Figure 13 for representing in a schematic way to respond between the gray scale in the foregoing description;

Figure 14 is for representing the figure of the projection type liquid crystal indicator of embodiments of the invention in a schematic way;

Figure 15 is the structure of the diaphragm of the display device of representing the foregoing description in a schematic way and the figure of effect;

Figure 16 begins the position relation etc. of the open front of portion and dimmer for the brightness of the horizontal direction sweep trace of the display part of expression in the foregoing description;

Figure 17 is for when comparing with CRT mode, common liquid crystal display cells, represents the figure of luminous action of pixel, the display surface of the foregoing description in a schematic way;

Figure 18 is for representing the figure of the liquid crystal indicator of the 9th embodiment of the present invention in a schematic way;

Figure 19 is the figure of the action of the diaphragm of the display device of representing the foregoing description in a schematic way;

Figure 20 is for representing the figure of the display device of the 10th embodiment of the present invention in a schematic way;

Figure 21 is the figure of the making of the action of representing the sequential image that the 11st embodiment of the present invention is paid close attention in a schematic way and intermediate image;

Figure 22 is the structural drawing of the liquid crystal indicator of the foregoing description;

Figure 23 is for when comparing with existing circuit, represents the figure of circuit of the demonstration usefulness of the 12nd embodiment of the present invention in a schematic way;

Figure 24 represents the figure of the brightness of the foregoing description, the waveform of transmitance etc. in a schematic way for when the occasion of mode with other compares;

Figure 25 is the figure of the circuit of the demonstration usefulness of representing the 13rd embodiment of the present invention in a schematic way;

Figure 26 is the figure of the circuit of the demonstration usefulness of representing the 14th embodiment of the present invention in a schematic way;

Figure 27 is the figure of the circuit of the demonstration usefulness of representing the 15th embodiment of the present invention in a schematic way;

Figure 28 is the figure of the effect of expression the 16th embodiment of the present invention;

Figure 29 is the figure of the structure of expression the 17th embodiment of the present invention.

1 liquid crystal indicator main part

21 bias lights lamp portion

22 bias lights lamp portion

3 light guide sections

4 speed-sensitive switches

5 switching parts

11 image acceptance divisions

12 picture image decomposition portions

13 odd number picture image storage parts

14 even number picture image storage parts

15 1/16 seconds delay circuits

16 1/120 seconds delay circuits

17 averaging circuits

18 display control units

19 display parts

20 odd number of images left side cuts portion

21 even image right sides cut portion

22 batch (-type) display control units

Storage parts such as 25 communication protocols

26 input judging parts

The corresponding control switching part that shows of 27 animations

28 buttons, switch

29 buttons, switch

30 judging parts

31 specimens point collection portions

32 specimens point data store

33 comparing sections

The corresponding display control unit of 34 dynamic images

35 various animation display handling parts

40 division portions

41 display device

42 peripheral drive portions

43 center driven portions

The corresponding control part of 44 animations

45 switches

46 central display surfaces

47 peripheral display surfaces

311 lamps

312 catoptrons

313 dimmers

314 liquid crystal display cells

Lens are write in 315 throwings

316 screens

341 liquid crystal diaphragm

361 prismatic catoptrons

362 condensers

401 signal receiving parts

402 input picture impact dampers formerly

403 motion comparing sections

404 judging parts

405 intermediate image preparing department

406 display control units

407 display parts

The 511TFT transistor

512 pixel capacitors

The 513 grid utmost points

514 source electrode lines

515 discharge mechanisms

516 comparative electrodes

The wiring of 531 reference potentials

532 resistors

533 liquid crystal resistance

534 resistors

Embodiments of the invention

Present invention is described according to embodiment below.

(the 1st embodiment)

The display device of present embodiment adopts following display device, in this display device, drives the liquid crystal of the pattern that is called OCB by TFT.In addition, its response time is 8ms.

In addition, for ocb mode such as in the flat 7-84254 document of TOHKEMY, specifically being described.In addition, adopt the display board structure (structure) of the liquid crystal of ocb mode in such as list of references 5, specifically to be described.In addition, the display board of the liquid crystal of the ocb mode of employing present embodiment is also according to the same way as manufacturing.

List of references 5: interior field etc. " IDRC ' 97 " (1997) p37.

For this reason, omit the description of the structure of ocb mode itself or display board.In addition, the means of illumination of dynamic image correspondence adopts the method for using flashlamp, and this method is specifically described in detail in list of references 6.

List of references 6: equality " AMLCD ' 98 " (1998)

Thus, for the principle or the driving method itself of this flashlamp, equal omit specific descriptions.

As shown in Figure 3, the liquid crystal indicator of the above-mentioned ocb mode of the driving employing TFT (thin film transistor (TFT)) of pixel is in the picture of the correspondence of dynamic image faster of the motion of common picture intelligence or recreation etc. shows, adopt flash-light method, at OA picture (the flexible picture of Internet picture, OA or also show the occasion of the still image of landscape etc.) by picture intelligence, promptly in the demonstration of still image correspondence, adopt the common illumination of lighting a lamp.

In addition, in this figure, the main part of the liquid crystal indicator of label 1 expression pattern ocb mode.Label 21 and 22 expression back of the body irradiation lamp portions.Label 3 expression light guide sections.Label 4 expression speed-sensitive switches.Label 5 expression switching parts.

In addition, except above parts, also have with display surface be used as game machine, the switching mechanism of the part (display part) of the equipment of the OA equipment of the demonstration, word processor etc. of film in VTR under the record etc. or keyboard etc., but because these parts and main contents of the present invention do not have direct relation, so they do not illustrate in the drawings.

Also have, in the corresponding occasion that shows of still image, only Zuo Ce lamp 21 brightens.On the other hand,, the lamp portion 21,22 of the left and right sides is brightened, and adopt the reason of speed-sensitive switch to be in each picture of dynamic image, according to keeping synchronous mode to carry out lamp switch at a high speed with vertical synchronization in the corresponding occasion that shows of dynamic image.

Have, when the observer was switched display packing according to displaying contents, acquisition was fuzzy little in the dynamic image occasion, the untired demonstration of eyes when still image again.

This moment in addition, obviously also can be in the following manner, the control of the voltage by not shown lamp portion forms the light quantity of flashlamp, and this mode makes: do not have difference in the corresponding brightness with display surface during still image is corresponding of dynamic image.

(the 2nd embodiment)

Present embodiment is made intermediate image, is inserted into.

In the present embodiment, switch to flashlamp, make field frequency become 2 times (120Hz), carry out the demonstration of dynamic image correspondence, the embodiment with the front is identical thus, and obtaining does not have fuzzy demonstration.

Fig. 4 represents this state.The left side of this figure (1) refers to the content of the pictorial data that sends successively.(2) refer to the content of the intermediate image made successively according to the pictorial data of above-mentioned transmission.Shown in (1), square 61～63 of black move towards the bottom right from the upper left of picture on display surface 191.For this reason, shown in (2), make the intermediate image 612,623 of the square motion of expression black during the course.In addition, according to the order displayed image shown in the thick arrow among this figure.

Below with reference to Fig. 5, this signal Processing is described.Fig. 4 is illustrated in the state of the pictorial data of this occasion demonstration.

In this figure, that encloses " zero " longitudinally in vain is spaced apart 1/60 second, and radix point ". " is spaced apart 1/120 second with " zero's ".In addition, the sequence number 1,2 shown in the top cross of figure ... the data of picture send according to 1/60 second interval.In addition, except initial picture etc., be decomposed into 2 at first in the data of conventional each picture of state.Then, before 1 data of decomposition were taken at 1/60 second, the mean value of the data of the delay of 1 picture formerly that has arrived 1/40 second (1/60 second+1/90 second) was made intermediate image.Then, the intermediate image of above-mentioned making is used for after this image arrives, and (1 image formerly arrive after, after 1/40 second) shows after 1/120 second.Another data of decomposing then are divided into 2 once more according to storage in 1/60 second.Then, 1 data of being decomposed postpone 1/60 second after arriving, be used for showing as it is.

Afterwards, the data of Fen Xieing are once more according to storage in 1/120 second once more, and the mean value of the data of 1 next picture that was arrived after 1/60 second is used for after back 1/40 second of arrival (image of 1 back arrive after, after 1/120 second) and shows then.(in addition, in this occasion, in fact equalization is handled and is necessarily required the regular hour, and in addition, the picture of two front and back also has the regular hour hysteresis, and obviously can carry out adequate compensation to them).

Fig. 6 represents the structure of the major part of this device.In this figure, label 11 presentation image acceptance divisions.Label 12 presentation image decomposition portions.Label 13 expression odd number image storage portions.Label 14 expression even number image storage portions.Label 15 expressions have 1/60 second the delay circuit of FIFO.1/120 second identical delay circuit of label 16 expressions.Label 17 expression averaging circuits, it comprises not shown delay circuit or storer.Label 19 expression display parts.

In addition, display control unit is in that dynamic image is corresponding when showing, display cycle of display part was switched to 1/120 second from 1/60 second, for this reason, selects shown image.That is, suitably select to use it for demonstration from the picture data of two 1/60 second delay circuits and the transmission of homogenizing treatment circuit.

In addition, in the present embodiment, generate 1 width of cloth intermediate image, but the quantity of intermediate image is not limited thereto.By increasing the quantity of intermediate image, just form more smooth-going image.Also have, then corresponding if increase the quantity of intermediate image at this moment, must increase and carry out the frequency that image shows.

Also have, this moment of the making of the image of occasion for this reason, and if represent initial image with A, represent next image with B, in the middle of inserting and the quantity of the image that shows is 2, then initial intermediate image is (2A+B)/3, next intermediate image is (A+2B)/3.Equally be 3 occasion at image quantity, the intermediate image that shows is followed successively by (3A+B)/4, (A+B)/4, and (A+3B)/4.Also have, also can make according to the image of each front and back 2 width of cloth.In addition, can form also that setting changes or the correspondence of the switching of user's channel.But for these, from content and technical all less difficult, the Therefore, omited is to the description of above content.

Thus, can under the situation of not damaging brightness, realize showing at a high speed.

(the 3rd embodiment)

Present embodiment carries out batch (-type) and drives as the driving method of dynamic image correspondence.

That is, in 1 field, the black picture occupies half, even and under these circumstances, still obtain fuzzy little result.In addition, equally in this occasion,,, obviously the light intensity that throws light on is adjusted into 2 times because the brightness of comparing with still image is half if the brightness of illumination is kept intact.

Fig. 7 represents the structure of the major part of present embodiment.

In this figure, label 11 expression odd number image left sides cut portion.Label 12 expression even number image right sides cut portion.Label 22 expression batch (-type) display control units.

According to top described, the batch (-type) display control unit carries out the corresponding demonstration of dynamic image by following manner, this mode is: a left side or right-hand part alternately send to display part with the black image according to cycle of 1/60 second, and the light intensity that will carry on the back irradiation altogether is controlled at 2 times.

Fig. 8 represents this state.In this figure, from the top down, i.e. image shown in (1)～(4) shows successively.At this moment, the odd number image shows that according to the mode with left side 1911 deletions the even number image shows according to 1912 modes of deleting with right-hand part.

(comparative example 1)

Adopt the hardware (liquid crystal indicator) identical with 3 embodiment of front, if it is, carry out the display driver of still image correspondence, then significantly fuzzy still in the occasion of dynamic image.In addition, in contrast, if in the occasion of still image, carry out the display driver of dynamic image correspondence, then beat etc. significantly, eyes take place tired under long-time the use.

(the 4th embodiment)

Present embodiment relates to the liquid crystal indicator of dividing dynamic image and still image and showing.The liquid crystal indicator of present embodiment automatically carries out the demonstration of dynamic image correspondence according to the occasion at picture intelligence, and Image Detection mechanism is set in signal circuit.In addition, thus in the occasion of picture intelligence,, form the driving of still image correspondence in the occasion of still image according to forming the corresponding driving of dynamic image with the mode of the 1st embodiment of front.

Whether in addition, here referring to detect is the particular content of dynamic image, and if broadcast by the colour television set of TSC-system formula, in the present embodiment, then undertaken by detecting clock signal, luminance signal, having or not of transmission color of wave signal.Fig. 9 (a) represents the structure of major part of the device of this occasion.

In this figure, storage parts such as label 25 expression communication protocols.Label 26 expression input judging parts.The corresponding control switching part that shows of label 27 expression dynamic images.

The input judging part judges according to various communication protocols whether the image acceptance division is dynamic image towards the picture intelligence that display part sends, if be judged to be dynamic image, then carries out necessary demonstration switching at the corresponding switching part that shows of dynamic image.

The content of this switching specifically, and is as described above, and making the display cycle is 2 times, carries out batch (-type) and shows.These make the quantitative change of back of the body irradiation altogether is 2 times.

But, obviously, whether be that the judgement of dynamic image can not judged according to the signal of image yet, but detect by switch or push-botton operation by the user of this device.Fig. 9 (b) represents the structure of this occasion.

If specifically select the channel of television receiver, then judging part 30 is judged to be dynamic image, if keyboard is operated, then judging part 30 is judged to be still image.

Equally in the present embodiment, though picture has certain difference, still obtain basically and preceding 3

The result that embodiment is identical.

(the 5th embodiment)

Present embodiment is relevant with following liquid crystal indicator, wherein pays close attention to the formerly signal of picture and the difference of the current signal of accepting, the difference of particularly above-mentioned signal level, and judge whether to be dynamic image.

Thus, adopt storer and difference channel.Other aspect is identical with the 4th embodiment of front.

Figure 10 represents the structure of the major part of present embodiment.

In the figure, label 30 expression judging parts.Label 31 expression specimens point collection portions.Label 32 expression specimens point data store.Label 33 expression comparing sections.The corresponding display control unit of label 34 expression dynamic images.The various dynamic images of label 35 expressions show uses handling part.

Each picture data that receives etc. at development part is gathered by specimens point collection portion and predetermined pixel data is notified to comparing section with it.

The data of the specimens point before 1 width of cloth picture that comparing section is stored the specimens point data store compare with data by specimens point collection portion notice, the computing of stipulating, obtain its difference, send it to judging part, and send the data of being notified to form specimens point data store, its memory contents is upgraded by FIFO.

Judging part judges that according to the difference that is sent image is dynamic image or still image, and this judged result is notified to the corresponding display control unit of dynamic image.

The corresponding display control unit of dynamic image carries out the demonstration of dynamic image correspondence in various dynamic images demonstrations with handling part or display part in the occasion that has as the context notification of dynamic image.

So, in the liquid crystal indicator of present embodiment, even under situation,, still automatically carry out demonstration corresponding with it in the occasion that shows still image for the image that is recorded on image on the tape, play.Thus, can watch more easily.

(the 6th embodiment)

Even present embodiment be dynamic image, motion only is the occasion of the pars intermedia of display surface in shown figure, only carries out at this pars intermedia that dynamic image is corresponding to be shown.

That is, same under the situation that is dynamic image, actual motion is almost with only identical in the many situations of the occasion of the pars intermedia of display surface in display surface.

Specifically, if such as being news program, when being the unit of second or branch, then should be regarded as a different matter, if but obtain each picture that per second upgrades 60 times, then the motion only actually of figure for announcer's face, comprise mouth around, if be the live broadcast of baseball, then be actually pitcher or batter, if be drama, then only be that indoor, the ball park of background almost are static near hero or its.In addition, in many occasions, the pars intermedia that only is positioned at shown picture that is moved.

In addition, the occasion that shows at big picture particularly like this, but look end that the hearer almost can't see display surface, periphery etc.Specifically,, then only see pitcher or ball that picture is middle, can't see the spherical wall of background or the lawn of bottom etc. if such as the live telecast that is baseball.

In addition, the pith of shown image almost is positioned near the display surface centre.Also have the situation of state that justice of the peace mutually hostile in western play and bad person are shown in the two ends, the left and right sides of picture, but in such occasion, the sense of urgency is main, whether shown image does not well have any meaning.So,, carry out the corresponding demonstration of dynamic image only at the center section of picture.

The display device of present embodiment is conceived to above-mentioned aspect, and its structure is shown in Figure 11 (a).

In the figure, label 40 expression division portions.Label 41 expression display device, label 42 its inner peripheral drive portions of expression, the identical middle drive division of label 43 expressions, label 44 are illustrated in when dynamic image is corresponding to be shown, in such a manner the corresponding control part of dynamic image that middle drive division is controlled.Label 45 expression switches.

Division portion will be divided into periphery data and pars intermedia data from the pictorial data of image acceptance division, respectively they be sent to peripheral drive portion and middle drive division.If judging part is judged to be dynamic image, change-over switch, thus will send to the corresponding control part of dynamic image towards the signal of the pictorial data of middle drive division transmission from division portion.

The corresponding control part of dynamic image is shown in the pictorial data that is sent the centre of display surface by the dynamic image correspondence.In addition, thus, also carry out necessity processing that brightens and wait of the special use back of the body irradiation of this one only.

The basic structure of the display surface of this device that Figure 11 (b) expression is seen from the inboard.

The display element of label 46 expression pars intermedias, it is positioned at looks hearer's side.Label 47 expressions are positioned at the display element of the periphery at its back side.

In the present embodiment, the good demonstration that forms and not damage the quality of dynamic image, do not beat etc. is compared with all carrying out the corresponding situation of dynamic image, and price also is out of question.

In addition, same in the display device of present embodiment, identical as the result of the observation experiment that adopts various pictorial data with the 1st embodiment of front, obtain very good picture.

In addition, occasion at present embodiment, also must adjust the manufacturer of equipment and broadcast office etc., but, if the thicker data of periphery by each picture, send the compression of communication protocol, MPEG etc., other communication protocol itself, then the volume of the increase of channel quantity, record device reduce and the display device of other type such as CRT in aspects such as cost reduction, produce bigger effect.

(the 7th embodiment)

In the present embodiment, in order to see dynamic image easily, do not insert the black picture and carry out gray scale and show.

In addition, as mentioned above, no matter whether adopt the liquid crystal that carries out high speed motion, the people can not see so soon that this is to keep 1 field interval because show.

Therefore, if shorten the retention time that shows, just obtain high-speed response.As its measure, in 1 field time, design the not time of displayed image, in this time, insert black picture and can carry out at a high speed really, but brightness reduces.

But the present inventor finds, low-response, sees that the phenomenon of remaining image is significant in the image of medium tone.That is, in the occasion of bright picture motion, remaining image is not remarkable.

More particularly, in medium tone response, particularly brightness be the occasion of the picture motion below half, response is slow remarkable.Wherein, see that more significantly remaining visual occasion refers to the occasion of the pattern movement of ash denseer in black background.In addition, this situation can obtain confirming in the TV image that CRT shows equally, easily by darker setting, sees remaining image.

So, in the present embodiment,, adopt voltage adjusting method and time to cut apart the gray scale explicit representation simultaneously according to the gray scale display mode.

Thus, the liquid crystal indicator of present embodiment is effective especially for following occasion, and this occasion refers to be used for smooth motion is considered as the display part of important television receiver etc.But the OA terminal of messenger's computing machine etc. adopts the software of AV purposes also morely in recent years, thus, these situations relatively, effect is also bigger.

In addition, display device adopts the active-matrix substrate that uses TFT, the liquid crystal of the ocb mode of the high-speed response of liquid crystal employing 3ms.

Display packing is the method that the 1st subframe (image that shows according to preceding half section demonstration spacing) before and after 1 frame (demonstration spacing) is divided into and the 2nd subframe (image that shows according to the demonstration spacing of second half section) show, adopts time of the voltage adjustment method of using this moment simultaneously and 1 bit to cut apart the driving method of gray scale explicit representation.Figure 12 represents the display packing of the display device of present embodiment in a schematic way.

(a) of this figure (b), (c), (d), (e) represents that respectively gray shade scale is 0%, 30%, 50%, 70%, the drive waveforms of 100% occasion.When gray shade scale greater than 50% the time, on the 2nd subframe of second half section, fixing maximum voltage, and apply this voltage.If gray shade scale is less than 50%, then the 2nd subframe of second half section applies the voltage minimum.

In its measure, the 1st subframe voltage available is adjusted method and is applied magnitude of voltage in variable mode.This moment the 1st subframe apply voltage in gray shade scale less than 50% o'clock, adjust to maximum voltage according to 50%.When gray shade scale greater than 50% the time, form rise 50% value (that is, difference is in 0～50% scope) of relative gray shade scale.Thus, form maximal value according to 50%.In addition, in the present embodiment,,, compensate during this so apply certain bias voltage because valley voltage is the voltage of brightness minimum.

That is, with corresponding according to the maximal bit of the occasion of digital form mark gradation data be the 2nd subframe, remaining according to analog form output is the 1st subframe.At this moment, cut apart the gray scale demonstration, then carry out mark if carry out the time of 1 bit.

In this occasion, less than 50%, do not applying the stopping period of voltage in gray shade scale, insert 1 subframe amount.Because what particularly response aspect had problems is the lower occasion of brightness, produces high effect like this.

Here, owing to according to the mode that is divided into 21 frame is write, so in liquid crystal board, the frequency that writes is 2 times, scans at high speed.Thus, necessarily require liquid crystal cell corresponding to fair speed.Owing to must in 1 frame, finish response, so the response speed of this element must be less than 16ms (÷ 60 in=1 second).Best, in the response during whole gray scales, less than this response speed.

Figure 13 is illustrated in the waveform that applies in the response during the gray scale.(a) among this figure (b), (c) represents 30% → 0%, 30% → 100% respectively, responds during 60% → 0% the gray scale.In the present embodiment, owing to adopt the time of 1 bit to cut apart the gray scale explicit representation simultaneously, in less than 50% demonstration, at each subframe, realizing brightens extinguishes.This situation is identical with the occasion of inserting the black picture according to analog form.In the occasion that is changed to 0%, in the occasion that is changed to 100%, it is characterized in that before motor changes, inserting the black picture, realize high-speed response.

Greater than 50% occasion, do not insert black picture completely, but, respond the effect of watching quickly so produce owing to can be attended by brightness and change.Showing the occasion of 100% brightness, to adjust method identical with existing voltage.

In addition, in the mode of present embodiment, if with compare the shortcoming that the effect that have under greater than 50% gray scale, response speed rises reduces really from the mode of inserting the black picture in logic.But, in this gray areas, judge according to the description of front, respond slowlyer, and do not produce any problem.Wherein, the liquid crystal indicator of present embodiment has the bigger advantage without any the brightness reduction of degree.

In addition, though Figure 12, Figure 13 provide by drive waveforms, because the liquid crystal display cells that present embodiment adopted adopts the liquid crystal of ocb mode, so response speed is enough fast, thus, obtain it and see through also identical with the driving distortion substantially variation of light quantity variation.In addition, the display element of the liquid crystal of the employing ocb mode of present embodiment adopts at the lower state of voltage, form the standard black of black display, but this situation is also opposite, if the acquisition high-speed response, obviously liquid crystal itself is not subjected to the restriction of the type of ocb mode yet.

That is,, still obtain the effect of present embodiment even,, form high-speed response if improve driving voltage for being under the situation of TN type liquid crystal cell of 80ms such as the response speed of general most employing.

But what the liquid crystal indicator of present embodiment was brought into play its effect, performance fully at present is OCB type liquid crystal display cells, strong irritability liquid crystal display cells, anti-strong irritability liquid crystal display cells, and obviously these elements are best.In addition, even under the situation beyond the liquid crystal, DMD type display element etc. all is good.Also have, obviously, liquid crystal indicator itself can be direct viewing type, porjection type.

Also have, in the present embodiment, carry out, obviously adopt more subframes also to be fine according to the mode that is divided into 2 subframes.In this occasion, must carry out more writing of high speed, but realize that effect at a high speed is higher.Have again, at this moment,, can realize well that then gray scale shows if the length of subframe is changed.

Specifically, when being divided into, cut apart the 1st, the 2nd, the 3rd subframe respectively according to the mode that forms 1: 2: 4 length such as 3 subframes.

In this displaying contents, if video data greater than 50%, then the 3rd subframe is lighted.If in the 2nd subframe, according to video data, the value that amount increase shown in the 3rd subframe is formed surpasses 25%, and it is lighted.In the 1st subframe, show following value by voltage adjustment method, this value is to be increased in the value that shown amount forms in the 2nd, the 3rd subframe according to video data.That is, carry out the 1st initial subframe by voltage adjustment method, remaining subframe adopts the time of " number of sub frames-1 " bit to cut apart the gray scale explicit representation.

Even under the situation that sub-frame number increases, this relation also is identical.

In the present embodiment, the subframe of carrying out voltage adjustment method is initial subframe, but obviously also can be not limited thereto situation.This be because: where no matter adapt to subframe setting that voltage adjusts method, all can insert stopping period.

(the 8th embodiment)

Present embodiment relates to the projection type display that adopts dimmer.

Figure 14 is the figure of the structure of the display device of representing present embodiment in a schematic way.In this figure, label 311 expression light sources.Label 312 expression catoptrons.Label 313 expression dimmers.Label 314 expression liquid crystal display cells (or display device liquid crystal board).Label 315 expressions are thrown and are write lens.Label 316 expression screens.In addition, arrow and thick arrow institute enclosing region are represented each light and light beam and their direction.

Know that according to this figure the light source light 311 with catoptron 312 forms substantially parallel light beam, it is injected in the liquid crystal board 314.In liquid crystal board 314, form image, write lens 315 with its amplification by throwing, with its projection on screen 316.As previously described, between light source 311 and liquid crystal board 314, be provided with dimmer 313 here.

In addition, as shown in figure 15, in this dimmer 313, offer the hole 3131 of rectangle in enough big disk, by make this disk rotation with high speed, by this opening 3131, light source light 311 is just injected liquid crystal board 314 off and on.In addition, the longitudinal length in the hole 3131 of rectangle is less than the longitudinal length of liquid crystal board 314, in certain part of the rayed liquid crystal board that sends of light source in a flash.In addition, in the present embodiment, as Figure 15, shown in Figure 16, the longitudinal size in this hole (H) is half of size (2H) of liquid crystal board.Also have, dimmer 313 is rotated according to the mode that opening 3131 is moved along the direction identical with the direction of scanning of liquid crystal.

In addition, as shown in figure 16, adjust the rotational speed of this dimmer, the sweep velocity of liquid crystal board and the gait of march in hole are consistent, and write new data by scanning, meanwhile, according to the mode in the zone of shining write hole, adjust phase place.Thus, in liquid crystal board, when writing new data, the beginning projected image is according to 1 half time (1/120 second) projected image.After this, because by the shielding part shields of dimmer, so light does not pass through.In Figure 16,, show that meanwhile, the front end of the opening 3131 in the dimmer 311 moves to this position so that carry out image owing to brighten by the liquid crystal cell of label 600 expression horizontal line portions.Then, after through 1/120 second, the rear end of this opening moves to this horizontal line portion.

So, shown in Figure 17 (c), owing to show during certain and stop, so from visual aspect, near CRT.In addition, in order to compare, in the figure, the brightness of the occasion (a) that has provided CRT and the occasion (b) of common liquid crystal (may rein in etc.) and time relation.

Owing to adopt this display device,, can form good high speed and show so even under the situation of the picture that image switches at a high speed, image is not fuzzy.

Also have, in the present embodiment, as liquid crystal display cells, adopting response speed is the liquid crystal cell of the OCB shape of 20ms.In addition, if according to experiment, then in the slower occasion of the response speed of liquid crystal cell itself, effect is few, and what have effect is the liquid crystal cell of response speed less than 30ms.Here, response speed refer to alternately apply through light quantity be 10% voltage, when to see through light quantity be 90% voltage, from secretly to the summation of bright response time with response time from bright to dark.In addition, the corresponding response time refers to from becoming for 90% used time of variation by light from 10%.

Have again, in the present embodiment, adopt liquid crystal display cells, but, have effect too for the DLP element.That is, if, then have identical effect for show state basically keeps the element of 1 field interval.

In addition, adopt the dimmer that covers of light source light, but obviously also can adopt other mechanical diaphragm.Promptly basically, if the structure of moving along the direction of scanning of liquid crystal for peristome then also can be type arbitrarily.

Adopt the such mechanical type diaphragm of dimmer to have and to be the advantage of the simplest structure formation.In the present embodiment, the light shielding part of this dimmer uses light absorbing object to make, but because as long as shading light just can, so also can be reflecting body.In addition, if adopt reflecting body, reflect light to light source side, then realize the utilization again of light beam, brightness also improves.

(comparative example)

Adopt flashlamp, replace the light source and the dimmer of present embodiment.In this occasion, same with present embodiment, brighten and extinguish, but this lights the display synchronization of extinguishing not with liquid crystal.In this occasion, see and realize effect at a high speed equally, still can't see the effect of present embodiment degree.This be because: in the moment that brightens, have the zone that shows old video data.

In the present embodiment, begin with the demonstration of the horizontal scanning line of liquid crystal indicator and show that the beginning direction is synchronous,, carry out light projector by peristome according to 1/2 cycle (1 cycle=1/60 second).Thus, obtain to can't see the good response of the demonstration (showing whole 1 width of cloth picture simultaneously) etc. of film.

(the 9th embodiment)

Present embodiment adopts liquid crystal diaphragm, with the dimmer in the example that replaces the front.

Figure 18 represents that in a schematic way the throwing of present embodiment writes the structure of liquid crystal indicator.In this figure, label 341 expression liquid crystal diaphragm.In addition, for other structure, the part identical with the embodiment of front adopts same label.

As shown in this figure, this throwing is write display and insert liquid crystal diaphragm 341 between light source 311 and LCD panel 314.This liquid crystal diaphragm is for there being the structure of a plurality of transverse electrodes side by side.As shown in figure 19, the direction of scanning of itself and liquid crystal board is consistent, scans.

In addition, this liquid crystal diaphragm must be carried out the high speed switching.Thus, in the present embodiment, but the strong irritability liquid crystal cell and the OCB type liquid crystal cell of employing high-speed response.

In addition, any element all obtains good characteristic.In addition, in strong irritability liquid crystal cell, response speed can be 20 μ s, and in OCB type liquid crystal cell, response speed can be 10ms.Obviously, if improve driving voltage, also can realize more at a high speed.

Also have, preferably liquid crystal diaphragm is a high permeability.But, in above-mentioned strong irritability liquid crystal cell or OCB type liquid crystal cell, owing to adopt polaroid, so transmitance is lower.Wherein, in the such scattering type liquid crystal of common polymer dispersion type liquid crystal element,,, still on the other hand, be difficult to realize high-speed response so light loss is few because transmitance is higher.Thus, in the present embodiment, adopt the high like this driving voltage of 30v, obtain response speed 10ms.

In the above, present embodiment is that example is described with the display device of porjection type, but obviously is not limited thereto occasion.That is, liquid crystal diaphragm is arranged at the back side of direct view liquid crystal display element, also can obtains effect of the present invention.

With regard to present embodiment, in the occasion of comparing, owing to adopt liquid crystal diaphragm with the embodiment of front, so the size of diaphragm mechanism is identical with liquid crystal display cells basically, its whole volume reduces thus, in addition, also can easily be applied to the direct viewing type display device.

(the 10th embodiment)

Present embodiment relates to the projection type display identical with 2 embodiment of front, still, in diaphragm mechanism, carries out the scanning of light by adopting rib type post catoptron.

Figure 20 represents the structure of the projection type display of present embodiment in a schematic way.In this figure, label 361 expression prismatic catoptrons.Label 362 expression condensers.In addition, because other structure is identical with 2 embodiment of front, so adopt same label.

As shown in this figure, the light that lamp 311 sends is converted to the light beam of rectangle through condenser 362, and it shines on the prismatic catoptron 361 of high speed rotating.And this bundle reflected light shines on the liquid crystal board 316.In addition, at this moment,, the reflection direction of light beam is changed along with the high speed rotating of this prismatic catoptron 361.Also have, identical with the direction of scanning of liquid crystal board 314 by making by the direction of scanning of the light of this prismatic catoptron 361 reflections, identical with described in front 2 embodiment can be realized good high speed demonstration.

Have, if adopt the prismatic catoptron, then different with dimmer mode or liquid crystal diaphragm mode, from the principle, brightness is not lost again.Thus, the aspect from the utilization ratio of light preferably adopts this mode.

In addition, also can adopt micro-mirror device by the angle that is formed at the tiny mirror on the semiconductor crystal being changed show companies such as (make, deliver) Texas ッ Le メ Application ッ.

(the 11st embodiment)

In the present embodiment, its motion is analyzed, detected to continuous image frame, by vector calculus, the image in the middle of forming.

Figure 21 represents the motion of visual vector of the formation object of present embodiment.In the present embodiment, shown in the left side of Figure 21, input is according to picture (1), picture (2), picture (3) ... the continuous image of sequential movements.In this occasion, be divided into little situation of motion and the big situation of motion between the image.In addition, only, be conceived to motion vector for the big occasion of motion, the image of centre is synthetic, show.

In (1), (2) in the left side of Figure 21, the occasion of the input imagery shown in (3), because the mutual motion of 3 images (1) of being imported, (2), (3) is bigger, so shown in the right side of this figure, motion is inserted into the image (1.5) of centre, (2.5).

Consequently form good display characteristic.

Figure 22 represents the structure of the liquid crystal indicator of present embodiment.In this figure, label 401 expression signal receiving parts.Label 402 is represented input imagery buffer formerly, and its F1F0 by 1 picture portion forms.Motion between the frame before and after label 403 expression detects mutually, to its motion comparing section that compares.Label 404 expression judging parts, this judging part compares the comparative result of the comparing section of motion with the ultimate value that keeps separately, the necessity of the making of middle image is judged.Label 405 expression intermediate image preparing department, it judges the occasion that must make intermediate image at judging part, makes intermediate image.Label 406 expression display control units, it is in the occasion that intermediate image preparing department makes intermediate image, and the image demonstration time formerly that signal receiving part is received is half-court, then shows intermediate image according to remaining half-court.The display part of liquid crystal is adopted in label 407 expressions.

Below detailed slightly description is carried out in contents processing, the effect of motion comparing section.The motion comparing section of present embodiment get consecutive picture each pixel difference and (absolute value), itself and the ultimate value that keeps are separately compared, detect its difference.In addition, pay close attention to the brightest pixel of significant each pixel, obtain the difference of the variation of its position the common personnel that watch.Various measures with pixel of emphasizing the picture pars intermedia etc.But the part of these measures is following technology, and such as equally as described in Figure 21, it also is employings such as MPEG.Thus, omission is to its description.

In addition, present embodiment is gone back the 2nd embodiment shown in the application drawing 4～6 aspect certain.Thus, for present embodiment, omit description to it.

(the 12nd embodiment)

Present embodiment relates to mechanism, the circuit that is used to show the black picture.

Figure 23 represents the circuit of present embodiment in the mode of comparing with existing part.(a) among this figure is the circuit of present embodiment, (b) circuit of expression prior art.In this figure, label 511 expression TFT.Label 512 expression pixel capacitors.Label 513 expression gate lines.Label 514 expression source electrode lines.Label 515 expression discharge mechanisms.Label 516 expression comparative electrodes.Label 517 expression reference potentials (line, ground wire).

In addition, in the display element of existing employing active matrix, shown in this figure (b), pixel capacitors 512 is connected by TFT511.

When pixel capacitors is charged,, make source electrode line 514 and pixel capacitors 512 conductings by providing higher current potential to make the TFT511 conducting to gate line 513.At this moment, by source electrode line being applied the voltage of regulation, pixel capacitors is applied the voltage of regulation.Then, by gate line being applied lower current potential, make the TFT transistor be in cut-off state.At this moment, because source electrode line and pixel capacitors have high electrical resistance, so pixel capacitors is opened.At this moment, comparative electrode 516 is connected with reference potential (ground connection) 517.

Because stored charge between this comparative electrode and pixel capacitors forms high electrical resistance between comparative electrode and pixel capacitors, thus electric charge remain to charge next time during.Thus, continue between pixel capacitors and comparative electrode, apply certain voltage, it is certain that transmitance keeps.The transmitance of this moment is shown in Figure 24 (b).In addition, Figure 24 (a) is for schematically being illustrated in the figure that carries out the occasion of identical demonstration among the CRT in mode relatively.What provide in the figure, is to apply the occasion that makes the pattern that brightness slowly increases.

Figure 24 (c) is the figure of the circuit of the display element of expression present embodiment.Present embodiment is characterised in that between pixel capacitors 512 and reference potential 517, inserts the resistor 515 as discharge mechanism.By this resistor, the electric charge that accumulates between pixel capacitors and the comparative electrode is fully discharged, thereby before taking place to write next time, electric charge is discharged.In addition, depend on the CR time constant Ci Shi discharge time.Thus, obtain the transmitance shown in Figure 20 (c).Consequently, obtain the high-speed response identical with CRT.

(the 13rd embodiment)

The purpose of present embodiment is also with similar the preceding embodiment, and present embodiment is characterised in that the resistor of the current potential electric leakage of adding the pixel capacitors that makes tft array.Figure 25 represents the structure of present embodiment.As shown in this figure, in this array structure, be extended with the reference potential wiring 531 identical of its current potential, insertion resistor 532 between this wiring 531 and pixel capacitors 512 with the comparative electrode parallel with gate line 513.In addition, this resistor adopts the amorphous silicon layer that splashes into impurity in right amount.In addition, at this moment, do not applying under the state of voltage, showing and adopt " the standard black mode " that is in dark state.

Thus, obtain the good demonstration identical with the embodiment of front.

(the 14th embodiment)

The purpose of present embodiment is identical with 2 embodiment of front, and still, present embodiment is characterised in that the resistance value that has a liquid crystal layer by reduction makes the pixel capacitors discharge.

In addition, in order to reduce the resistance value of liquid crystal layer, can in liquid crystal, add ionic substance.At this moment, if the conservation rate that liquid crystal had less than 50%, then is effective.In addition, at this moment, reducing the auxiliary capacity that is formed at usually in the liquid crystal cell, make it be equal to or less than the pixel capacity, then is effective.Also have, if the conductance of liquid crystal layer is greater than 10 ^-10Ω cm then is that effectively preferably this conductance is greater than 10 ^-8Ω cm.

In addition, at this moment, do not applying under the state of voltage, showing and adopt " the standard black mode " that is in dark state.

Figure 26 represents the illustrative circuitry structure of present embodiment.In the figure, the resistance of label 533 expression liquid crystal layers itself.But, owing to be not difficult technologies so with the resistance value reduction of liquid crystal layer itself, the description of relevant this technology in the present embodiment of Therefore, omited.

(the 15th embodiment)

Present embodiment 2 embodiment with the front basically is identical, but relates to " reference white pattern ".

That is, 2 embodiment of front are " standard black mode ", but obviously, present embodiment is not limited thereto situation.That is, also can not apply under the state of voltage, showing " the reference white pattern " that is in " bright state " that adopt.

But, under the reference white pattern, must apply higher voltage, so that show black.Thus, after the pixel capacitors discharge, must form the convergence circuit that arrives high voltage.

So, in the present embodiment, as shown in figure 27, forming the power lead 542 that black voltage is provided, it is connected by resistor with pixel capacitors 512.In addition, in this figure, the power lead of black voltage is supplied with in label 542 expressions.Label 541 expression power supply supply lines.Label 543 expressions are used to keep the TFT of current potential.In addition, on power lead 542, apply higher voltage, and keep this voltage by the TFT transistor.

In addition, on power supply supply line 541, alternately apply VH and VL, the black display voltage when this voltage is equivalent to put on the source electrode line.In addition, form the electrode wires 542 that keeps this voltage, keep this current potential by TFT transistor 543.Because pixel capacitors is connected with this power supply supply line 541 by resistor,,, realize at a high speed equally for the reference white pattern so obtain towards the saturated characteristic of black voltage.

Generally, most cases is to supply with the electric field of pixel capacitors, promptly supply with the electric field of signal wire at a width of cloth picture of image, per 1, switch polarity.At this moment, the display voltage of black is also according to switching symbol such as+6V with the mode of-6V.Here, on power lead 542 at per 1 waveform that applies the Switching power magnitude of voltage.Such as, in aforesaid example, apply+the alternately electric field of 6V and-6V.

Obviously, present embodiment is not limited to every field reversal driving.That is, also can adopt the mode of the H inversion driving of (1 horizontal line) switch polarity, carry out the pattern of field inversion at high speed according to each time.What here must carry out is to apply on power lead 542 and the corresponding voltage of the black display of source signal.

In addition, be not limited to the liquid crystal display cells of narrow sense, also can be EL type display element.In addition, also can be liquid crystal mode arbitrarily, also can be the TN liquid crystal, IPS liquid crystal, OCB liquid crystal, VA liquid crystal.

Also have, the response of liquid crystal mode is fast more, and it is high more to form effect at a high speed.Thus, suitable employing applies high-tension TN pattern or IPS pattern, and pattern is essentially ocb mode at a high speed.In addition, EL element is that effect of the present invention is higher at a high speed basically.

If element is at a high speed, respond owing to can follow the electric field that is discharged, so can obtain at a high speed.During less than 16ms, has effect in the response speed of the response speed of the element that makes black and white when response and the rise time of response time and addition fall time.

(the 16th embodiment)

Present embodiment is also similar with the 7th embodiment, and their difference is: corresponding to the situation of the gray scale of image, adjust the application time of the potential pulse that is applied in every field time.

Figure 28 represents the effect of the maintenance display element of present embodiment.The gray scale of the pixel in (a) expression the the 1st, the 2, the 3rd, the 4 field time among this figure.(b) expression relatively applies voltage and time relationship in the the 1st, the 2, the 3rd, the 4 field time of (a).In this figure, such as at the 2nd field time, shown in this figure (a), gray scale is 1/3, thus, shown in this figure (b), the 2nd field time at interval in, in whole (T), only apply 100% voltage in initial 1/3 the time interval.

By the way, also obtaining good dynamic image shows.But, owing to be used to bring into play the circuit structure etc. of this effect,, change the adjustment of voltage into also corresponding to gray scale, make the demonstration interval variation, its content is simple, the diagram that the Therefore, omited is special.

(the 17th embodiment)

Present embodiment relates to the goods with above several embodiment combinations.

Figure 29 represents this goods.As shown in this figure, this display device is formation and dynamic image and the corresponding demonstration of still image not only, and the corresponding appropriate display of the content of formation and program.Therefore, also adopt the image compression of MPEG etc., in addition, high definition etc. also can suitably show.

According to several embodiment, invention has been described above, still, obviously, the invention is not restricted to any one among these embodiment.That is, such as also adopting following manner.

1) show be not limited to 1 second 60, PEL (picture element) density is also such as corresponding with high definition.

2) liquid crystal is the type beyond the ocb mode.

3) in the 6th embodiment, further increase the division of display surface.Perhaps only form ocb mode at pars intermedia.

4) shown dynamic image is recorded on tape or the disk.

5) clearance-type drives and is undertaken by the mode that field frequency is doubled.So in this occasion, according to left-half, the right half part of odd number picture, the left-half of even number picture, the order of right half part show.

6) pixel location that carries out sample process as the judgement object that whether is dynamic image also can be corresponding to the content of broadcast program etc., selects suitable (position).

7) as motion vector, a plurality of if bright spot exists, just the performance of the grade of paying close attention to maximum pixel quantity is provided.

8) reversal of poles can be divided at each unit and be carried out.

9) be that the dynamic image or the judgement of still image can be judged according to following situation, this situation refers to the having or not of variation of gray scale of the pixel of predetermined several position.

10) if the variation of above-mentioned gray scale less than ultimate value, even be dynamic image, still can be identical with still image realization show.

11) live broadcast of the additional with good grounds news program of the detection of motion vector, physical culture etc. and make the performance of object variation.In addition, whether be news program etc. by storing special listing in advance, compare with interior calendar of establishing or timer and to realize.

12) can be the good LED of response that brightness changes, semiconductor laser, electroluminescence body etc. as the luminophor of back of the body irradiation.

13), adopt the crystal of the electrooptics of bismuth oxide silicon etc. as the display element of maintenance.

14) this type of display device as non-maintenance.

Utilize possibility on the industry

As mentioned above, in the present invention, particularly in the display unit of the maintenance of liquid crystal indicator etc., Can carry out simply, cheaply, good dynamic image, the demonstration of video.

In addition, by the display packing display packing corresponding with still image corresponding to dynamic image cut Change, demonstration that also can corresponding any type obtains good demonstration.

In addition, various owing to wide and thin display unit suitably being consisted of television set, word processor etc. The general demonstration parts (part) of equipment, its purposes also enlarges.

Also have, because display surface is divided, and carry out suitable demonstration according to the kind of picture, so can not fall The quality of low dynamic image, the price of device is lower.

Claims (128)

1. display device is characterized in that this device comprises:

The dynamic image driving mechanism, it carries out the demonstration of dynamic image main body in indication mechanism;

The still image driving mechanism, it carries out the demonstration of still image main body in indication mechanism;

Switching mechanism, its method by regulation is switched above-mentioned two mechanisms.

2. display device according to claim 1 is characterized in that:

Above-mentioned indication mechanism is for adopting the indication mechanism of liquid crystal;

The dynamic image of liquid crystal drive that carries out the dynamic image correspondence when above-mentioned dynamic image is included in displayed image with driving mechanism, in adopting the indication mechanism of above-mentioned liquid crystal with the dynamic image of liquid crystal drive portion or the identical illumination of carrying out the dynamic image correspondence with the drive division that throws light on.

3. display device according to claim 1 is characterized in that:

Above-mentioned dynamic image comprises with driving mechanism:

Intermediate image is made sub-agencies, and it is according to keeping continuous making intermediate images such as 2 pictorial data mutually;

Intermediate image inserts sub-agencies, when it shows at dynamic image, keeps mutually inserting the intermediate image of above-mentioned making between continuous 2 images and shows above-mentioned;

Field frequency dwindles the adjustment sub-agencies, and no matter whether it insert above-mentioned intermediate image by reducing the demonstration interval of 1 images, makes the demonstration time of dynamic image constant.

4. display device according to claim 1 is characterized in that:

Above-mentioned dynamic image driving mechanism drives display driver mechanism for drive the batch (-type) that picture is shown by batch (-type).

5. display device according to claim 1 is characterized in that:

Above-mentioned dynamic image driving mechanism is high field frequency indication mechanism, and its occasion than still image improves field frequency and shows dynamic image.

6. display device according to claim 1 is characterized in that:

Above-mentioned dynamic image driving mechanism was cut apart and is used the dynamic image driving mechanism for the diaphragm time, and it adopts diaphragm mode or time to cut apart at least a in the gray scale display mode.

7. display device according to claim 2 is characterized in that:

Above-mentioned dynamic image comprises the short-term branch that brightens with the illumination drive division, when it shows at each image, relatively with field frequency corresponding during than display light is brightened shortly.

8. display device according to claim 2 is characterized in that:

Above-mentioned dynamic image comprises the pulse portion that brightens with the illumination drive division, when it shows at dynamic image, according to pulse mode light is brightened at every width of cloth picture.

9. according to any one the described display device in the claim 1～8, it is characterized in that:

Above-mentioned switching mechanism is a mechanism for automatically switching, and when it received at picture intelligence, order detected this signal according to the rules, automatically switches to above-mentioned dynamic image driving mechanism.

10. display device according to claim 9 is characterized in that:

Above-mentioned mechanism for automatically switching is a Differential Detection type mechanism for automatically switching, and it according to observing the picture faster that moves with the difference of last picture, carried out the corresponding driving of dynamic image according to this detection case at least before showing.

11. any one the described display device according in the claim 1～8 is characterized in that:

Above-mentioned still image comprises the common portion that brightens with driving mechanism, its when showing still image, during corresponding with field frequency in, the light source of display light etc. is brightened.

12. display device according to claim 9 is characterized in that:

Above-mentioned still image comprises the common portion that brightens with driving mechanism, its when showing still image, during corresponding with field frequency in, the light source of display light etc. is brightened.

13. display device according to claim 10 is characterized in that:

Above-mentioned still image comprises the common portion that brightens with driving mechanism, its when showing still image, during corresponding with field frequency in, the light source of display light etc. is brightened.

14. any one the described display device according in the claim 1～8 is characterized in that:

Above-mentioned indication mechanism is for adopting the mechanism of liquid crystal, and liquid crystal display cells wherein is that its response time is at least than fast high-speed response pixel element during 1.

15. display device according to claim 9 is characterized in that:

Above-mentioned indication mechanism is for adopting the mechanism of liquid crystal, and liquid crystal display cells wherein is that its response time is at least than fast high-speed response pixel element during 1.

16. liquid crystal indicator according to claim 10 is characterized in that:

Above-mentioned indication mechanism is for adopting the mechanism of liquid crystal, and liquid crystal display cells wherein is that its response time is at least than fast high-speed response pixel element during 1.

17. liquid crystal indicator according to claim 11 is characterized in that:

Above-mentioned indication mechanism is for adopting the mechanism of liquid crystal, and liquid crystal display cells wherein is that its response time is at least than fast high-speed response pixel element during 1.

18. liquid crystal indicator according to claim 12 is characterized in that:

Above-mentioned indication mechanism is for adopting the mechanism of liquid crystal, and liquid crystal display cells wherein is that its response time is at least than fast high-speed response pixel element during 1.

19. liquid crystal indicator according to claim 13 is characterized in that:

Above-mentioned indication mechanism is for adopting the mechanism of liquid crystal, and liquid crystal display cells wherein is that its response time is at least than fast high-speed response pixel element during 1.

20. any one the described display device according in the claim 1～8 is characterized in that:

But the still image face display part that dynamic image correspondence display part that above-mentioned indication mechanism is formed by the part of display surface and remaining display surface form constitutes;

Above-mentioned driving driving mechanism is a display surface partial dynamic image driving mechanism, and it is in the occasion of dynamic image, but the demonstration of enterprising action attitude image main body in above-mentioned dynamic image correspondence display part;

Above-mentioned switching mechanism comprises:

Judge sub-agencies, the pictorial data that its judgement should show is dynamic image or still image;

Display surface partial dynamic image drive controlling sub-agencies, when it is judged to be dynamic image at above-mentioned judgement sub-agencies, in the dynamic image driving mechanism of above-mentioned display part, but on the dynamic image correspondence display part of display surface, carry out the demonstration of suitable dynamic image main body.

21. display device according to claim 20, but it is characterized in that above-mentioned dynamic image correspondence display part comprises the picture pars intermedia.

22. a display device is characterized in that this device comprises:

The dynamic image driving mechanism, it carries out the demonstration of dynamic image main body in the maintenance indication mechanism;

The still image driving mechanism, it carries out the demonstration of still image main body in the maintenance indication mechanism;

Switching mechanism, its method by regulation is switched above-mentioned two mechanisms.

23. display device according to claim 22 is characterized in that:

Above-mentioned dynamic image comprises with driving mechanism:

Intermediate image is made sub-agencies, and it is according to keeping continuous making intermediate images such as 2 pictorial data mutually;

Intermediate image inserts sub-agencies, when it shows at dynamic image, keeps mutually inserting the intermediate image of above-mentioned making between continuous 2 images and shows above-mentioned;

Field frequency dwindles the adjustment sub-agencies, and no matter whether it insert above-mentioned intermediate image by reducing the demonstration interval of 1 images, makes the demonstration time of dynamic image constant.

24. display device according to claim 22 is characterized in that:

Above-mentioned dynamic image driving mechanism drives display driver mechanism for drive the batch (-type) that picture is shown by batch (-type).

25. display device according to claim 22 is characterized in that:

Above-mentioned dynamic image driving mechanism is high field frequency display part, and its occasion than still image improves field frequency and shows dynamic image.

26. display device according to claim 22 is characterized in that:

Above-mentioned dynamic image driving mechanism was cut apart and is used the dynamic image driving mechanism for the diaphragm time, and it adopts diaphragm mode or time to cut apart at least a in the gray scale display mode.

27. display device according to claim 22 is characterized in that:

Above-mentioned dynamic image comprises the short-term branch that brightens with the illumination drive division, when it shows at each image, relatively with field frequency corresponding during than display light is brightened shortly.

28. display device according to claim 22 is characterized in that:

Above-mentioned dynamic image comprises the pulse portion that brightens with the illumination drive division, when it shows at dynamic image, according to pulse mode light is brightened at every width of cloth picture.

29. any one the described display device according in the claim 22～28 is characterized in that:

Above-mentioned switching mechanism is a mechanism for automatically switching, and when it received at picture intelligence, order detected this signal according to the rules, automatically switches to above-mentioned dynamic image driving mechanism.

30. display device according to claim 29 is characterized in that:

Above-mentioned mechanism for automatically switching is a Differential Detection type mechanism for automatically switching, and it detected the picture faster that moves according to the difference with last picture at least before showing, carries out the corresponding driving of dynamic image according to this detection case.

31. any one the described display device according in the claim 22～28 is characterized in that:

Above-mentioned still image comprises the common portion that brightens with driving mechanism, its when showing still image, during corresponding with field frequency in, the light source of display light etc. is brightened.

32. display device according to claim 29 is characterized in that:

Above-mentioned still image comprises the common portion that brightens with driving mechanism, its when showing still image, during corresponding with field frequency in, the light source of display light etc. is brightened.

33. display device according to claim 30 is characterized in that:

Above-mentioned still image comprises the common portion that brightens with driving mechanism, its when showing still image, during corresponding with field frequency in, the light source of display light etc. is brightened.

34. any one the described display device according in the claim 22～28 is characterized in that:

Above-mentioned indication mechanism adopts the high-speed response pixel element, and its response time is at least than fast during 1.

35. display device according to claim 29 is characterized in that:

Above-mentioned indication mechanism adopts the high-speed response pixel element, and its response time is at least than fast during 1.

36. liquid crystal indicator according to claim 30 is characterized in that:

Above-mentioned indication mechanism adopts the high-speed response pixel element, and its response time is at least than fast during 1.

37. liquid crystal indicator according to claim 31 is characterized in that:

Above-mentioned indication mechanism adopts the high-speed response pixel element, and its response time is at least than fast during 1.

38. liquid crystal indicator according to claim 32 is characterized in that:

Above-mentioned indication mechanism adopts the high-speed response pixel element, and its response time is at least than fast during 1.

39. liquid crystal indicator according to claim 33 is characterized in that:

Above-mentioned indication mechanism adopts the high-speed response pixel element, and its response time is at least than fast during 1.

40. any one the described display device according in the claim 22～28 is characterized in that:

But the still image face display part that dynamic image correspondence display part that above-mentioned indication mechanism is formed by the part of display surface and remaining display surface form constitutes;

Above-mentioned driving driving mechanism is a display surface partial dynamic image driving mechanism, and it is in the occasion of dynamic image, but the demonstration of enterprising action attitude image main body in above-mentioned dynamic image correspondence display part;

Above-mentioned switching mechanism comprises:

Judge sub-agencies, the pictorial data that its judgement should show is dynamic image or still image;

Display surface partial dynamic image drive controlling sub-agencies, when it is judged to be dynamic image at above-mentioned judgement sub-agencies, by above-mentioned display part dynamic image driving mechanism, but on the dynamic image correspondence display part of display surface, carry out the demonstration of suitable dynamic image main body.

41., but it is characterized in that above-mentioned dynamic image correspondence display part comprises the picture pars intermedia according to the described display device of claim 40.

42. the gradation display method of a display device is characterized in that:

It adopts voltage to adjust method simultaneously and the time is cut apart the gray scale explicit representation.

43., it is characterized in that according to the described gradation display method of claim 42:

When the cycle of the shown picture intelligence of display device is 1, this is divided into a plurality of sons field, carry out voltage adjustment method at least 1 in this child field and handle, other a son time of carrying out is cut apart the gray scale explicit representation handle.

44., it is characterized in that above-mentioned a plurality of sons field is 2 according to the described gradation display method of claim 43.

45. according to the gradation display method of any one the described display device in the claim 42～44, it is characterized in that situation, adjust the application time of the potential pulse that is applied corresponding to the gray scale of the image that should show.

46. according to any one the described gradation display method in the claim 42～44, it is characterized in that in the gray scale of the image of the dynamic image that should show less than peaked half occasion, with the stopping period during half of 1 insert before it half or its later half in.

47. according to the described gradation display method of claim 45, it is characterized in that gray scale at the image of the dynamic image that should show is peaked half occasion, the stopping period during half of 1 inserted before it in half section or its second half section.

48., it is characterized in that above-mentioned display device is a maintenance according to any one the described gradation display method in the claim 42,43 or 44.

49., it is characterized in that above-mentioned display device is a maintenance according to the described gradation display method of claim 45.

50., it is characterized in that above-mentioned display device is a maintenance according to the described gradation display method of claim 46.

51. a display device is characterized in that this device comprises:

The field division mechanism, it is divided into a plurality of sons field with 1, so that carry out the demonstration corresponding to each visual gray scale of the dynamic image that should show;

The voltage adjustment shows actuation gear, and it carries out the voltage adjustment definite according to gray scale, and show at indication mechanism at least 1 son field that above-mentioned division mechanism cut apart;

Time is cut apart the gray scale indication mechanism, and it carries out cutting apart gray scale according to the time that gray scale is determined and show, and show in indication mechanism at other son field.

52., it is characterized in that according to the described display device of claim 51:

Above-mentioned a plurality of sons field is 2 of constant duration;

The above-mentioned time is cut apart the gray scale indication mechanism for cutting apart the gray scale indication mechanism greater than 50% corresponding time, and it only shows 1 son greater than 50% occasion in gray scale according to 100% gray scale.

53. a display device is characterized in that this device comprises:

Gray scale detection mechanism, each visual gray scale of the dynamic image that it should show at every detection;

Application time is determined mechanism at interval, its according to the gray scale that is detected at every time interval of determining to apply voltage;

Gray scale corresponding voltage applying mechanism, it is according to the above-mentioned determined time interval of application time space mechanism, at 1 the voltage that applies regulation at first or at last.

54. any one the described display device according in the claim 51～53 is characterized in that:

Above-mentioned display device is the type that pixel adopts the display element of maintenance as indication mechanism.

55. any one the described display device according in the claim 51～53 is characterized in that:

Above-mentioned display device comprises high-speed response type indication mechanism, and the response time of the element of its display part is less than 16ms.

56. according to the described display device of claim 55, it is characterized in that above-mentioned display device, adopt the type of the display element of maintenance for pixel as indication mechanism.

57., it is characterized in that according to the described display device of claim 55:

Above-mentioned high-speed response type indication mechanism is for adopting the indication mechanism of liquid crystal.

58., it is characterized in that according to the described display device of claim 57:

The indication mechanism of above-mentioned employing liquid crystal is the indication mechanism of the liquid crystal of employing ocb mode.

59., it is characterized in that according to the described display device of claim 57:

The indication mechanism of above-mentioned employing liquid crystal is the indication mechanism of the liquid crystal of the strong induction electrode of employing.

60., it is characterized in that according to the described display device of claim 57:

The indication mechanism of above-mentioned employing liquid crystal is for adopting the anti-indication mechanism of the liquid crystal of induction electrode by force.

61. a display device, this device comprises light source, diaphragm mechanism, and the indication mechanism of demonstration dynamic image is characterized in that:

Above-mentioned diaphragm mechanism is covered switching mechanism for seeing through, when image shows, the light that light source sends is injected indication mechanism through diaphragm mechanism, this moment this mechanism order according to the rules, to see through state from the light of light source, cover this light state and with show that each visual corresponding state switches.

62., it is characterized in that according to the described display device of claim 61:

The frame updating time as cycle of the above-mentioned switching that sees through the diaphragm mechanism cover switching mechanism and above-mentioned indication mechanism keeps synchronous.

63., it is characterized in that according to the described display device of claim 62:

Above-mentioned diaphragm mechanism is the corresponding type diaphragm mechanism in the direction of scanning identical with the direction of scanning of above-mentioned indication mechanism, its direction of scanning.

64., it is characterized in that according to the described display device of claim 61:

Above-mentioned diaphragm mechanism is a liquid crystal diaphragm.

65., it is characterized in that according to the described display device of claim 64:

Above-mentioned liquid crystal diaphragm is for adopting the liquid crystal diaphragm of strong irritability liquid crystal.

66., it is characterized in that according to the described display device of claim 64:

Above-mentioned liquid crystal diaphragm is for adopting the liquid crystal diaphragm of OCB type liquid crystal.

67., it is characterized in that according to the described display device of claim 64:

Above-mentioned liquid crystal diaphragm is for adopting the liquid crystal diaphragm of scattering type liquid crystal.

68. any one the described display device according in the claim 61～63 is characterized in that:

Above-mentioned diaphragm is the mechanical type diaphragm.

69., it is characterized in that according to the described display device of claim 68:

Above-mentioned mechanical type diaphragm is a colyliform, and it has the corresponding given size of size, shape, shaped aperture with the display surface of above-mentioned indication mechanism, angular velocity rotation according to the rules.

70. any one the described display device according in the claim 61～67 is characterized in that:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

71., it is characterized in that according to the described display device of claim 68:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

72., it is characterized in that according to the described display device of claim 69:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

73. a display device, it comprises light source, beam flying mechanism, and the indication mechanism of demonstration dynamic image is characterized in that:

Above-mentioned beam flying mechanism is a cycle switch type beam flying mechanism, and the light that light source sends is injected indication mechanism through above-mentioned beam flying mechanism, this moment this mechanism corresponding to the demonstration of each image, periodically switch the direct of travel of above-mentioned light source light.

74., it is characterized in that according to the described display device of claim 73:

Above-mentioned beam flying mechanism is the prismatic catoptron of rotation, and it is according to the switching of image, the light source light that has reflected towards above-mentioned indication mechanism.

75., it is characterized in that according to the described display device of claim 74:

The prismatic catoptron of above-mentioned rotation is the prismatic catoptron of small-sized rotation.

76. any one the described display device according in the claim 73～75 is characterized in that:

Above-mentioned indication mechanism is for adopting the indication mechanism of liquid crystal.

77., it is characterized in that according to the described display device of claim 76:

Above-mentioned indication mechanism comprises the high-speed response display element of the response speed of its element less than 30ms.

78., it is characterized in that according to the described display device of claim 77:

Above-mentioned high-speed response display element is the display element of the liquid crystal of employing ocb mode.

79., it is characterized in that according to the described display device of claim 77:

Above-mentioned high-speed response display element is the display element of the liquid crystal of the strong inductive mode of employing.

80., it is characterized in that according to the described display device of claim 77:

Above-mentioned high-speed response display element is for adopting the anti-display element of the liquid crystal of inductive mode by force.

81. any one the described display device according in the claim 73～75 is characterized in that:

Above-mentioned display device is the display device of porjection type.

82., it is characterized in that according to the described display device of claim 76:

Above-mentioned display device is the display device of porjection type.

83., it is characterized in that according to the described display device of claim 77:

Above-mentioned display device is the display device of porjection type.

84., it is characterized in that according to the described display device of claim 78:

Above-mentioned display device is the display device of porjection type.

85., it is characterized in that according to the described display device of claim 79:

Above-mentioned display device is the display device of porjection type.

86. any one the described display device according in the claim 73～75 is characterized in that:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

87., it is characterized in that according to the described display device of claim 77:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

88. the display device shown in 1 according to Claim 8 is characterized in that:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

89. the display device shown in 2 according to Claim 8 is characterized in that:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

90. any one the described display device according in the claim 73～75 is characterized in that:

Above-mentioned indication mechanism also comprises:

The middle image making mechanism that inserts, it keeps continuous pictorial data mutually according at least two, and making should be inserted at least 1 intermediate image in the middle of 2 images that keep continuous mutually;

Make mechanism with group of picture with showing, it will be at above-mentioned above-mentioned at least 1 intermediate image that keeps above-mentioned making between continuous 2 images mutually, inserts above-mentioned the maintenance mutually and makes shown group of picture thus between the continuous image;

The display speed control gear, it according to the speed of carrying out of the dynamic image identical with the occasion of not inserting above-mentioned intermediate image, shows the demonstration group of picture of above-mentioned making by shortening the demonstration time of every images successively.

91. 6 described display device according to Claim 8 is characterized in that:

Above-mentioned display device also comprises:

The middle image making mechanism that inserts, it keeps continuous pictorial data mutually according at least two, and making should be inserted at least 1 intermediate image in the middle of 2 images that keep continuous mutually;

Demonstration is made mechanism with group of picture, and it will be at above-mentioned above-mentioned at least 1 intermediate image that keeps above-mentioned making between continuous 2 images mutually, inserts above-mentioned the maintenance mutually and makes shown group of picture thus between the continuous image;

The display speed control gear, it according to the speed of carrying out of the dynamic image identical with the occasion of not inserting above-mentioned intermediate image, shows the demonstration group of picture of above-mentioned making by shortening the demonstration time of every images successively.

92. a display device, this device is used to show dynamic image, it is characterized in that:

This device comprises:

The middle image making mechanism that inserts, it keeps continuous pictorial data mutually according at least two, and making should be inserted at least 1 intermediate image in the middle of 2 images that keep continuous mutually;

Demonstration is made mechanism with group of picture, and it will be at above-mentioned above-mentioned at least 1 intermediate image that keeps above-mentioned making between continuous 2 images mutually, inserts above-mentioned the maintenance mutually and makes shown group of picture thus between the continuous image;

The display speed control gear, it according to the speed of carrying out of the dynamic image identical with the occasion of not inserting above-mentioned intermediate image, shows the demonstration group of picture of above-mentioned making by shortening the demonstration time of every images successively.

93., it is characterized in that according to the described display device of claim 92:

Inserting image making mechanism in the middle of above-mentioned comprises:

The data storage sub-agencies, the above pictorial data of its storage at least 2 width of cloth pictures;

The computing sub-agencies, its pictorial data to this data storage sub-agencies is carried out computing;

Sub-agencies is made in the operation result utilization, the making of inserting image in the middle of its operation result with this computing sub-agencies is used for.

94., it is characterized in that according to the described display device of claim 92:

Insert image making mechanism in the middle of above-mentioned and be mean value etc. and adopt intermediate image to make mechanism, it generates intermediate image according to the mean value of the dynamic image of front and back or interpolate value etc.

95., it is characterized in that according to the described display device of claim 92:

Insert image making mechanism in the middle of above-mentioned and make mechanism for motion utilizes intermediate image, it detects motion by the data according to the continuous front and back of above-mentioned at least maintenance, inserts image in the middle of making.

96., it is characterized in that according to the described display device of claim 92:

Insertion image making mechanism is that motion vector is paid close attention to intermediate image making mechanism in the middle of above-mentioned, and it is paid close attention to according to the motion vector between each image of the pictorial data detection of the continuous front and back of above-mentioned at least maintenance, generates intermediate image.

97. any one the described display device according in the claim 92～96 is characterized in that above-mentioned display device as indication mechanism, comprises the liquid crystal display mechanism that adopts liquid crystal.

98., it is characterized in that according to the described display device of claim 97:

Above-mentioned liquid crystal display mechanism is the indication mechanism of the liquid crystal that adopts ocb mode.

99., it is characterized in that according to the described display device of claim 97:

Above-mentioned liquid crystal display mechanism is the indication mechanism of the liquid crystal that adopts strong irritability.

100., it is characterized in that according to the described display device of claim 97:

Above-mentioned liquid crystal display mechanism is the indication mechanism of the liquid crystal that adopts anti-strong irritability.

101. any one the described display device according in the claim 92～96 is characterized in that:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

102. a display device, this device comprise the corresponding indication mechanism of dynamic image, wherein pixel and is arranged with a plurality ofly longitudinally, laterally side by side, can carry out the demonstration of dynamic image thus, it is characterized in that each pixel of the corresponding mechanism of this dynamic image comprises:

The electric field applying mechanism, it applies electric field;

The electric field maintaining body, it keeps the above-mentioned electric field that applies;

Display element, it shows by applying electric field;

Discharge mechanism, it discharges to the electric field that above-mentioned electric field maintaining body is kept in official hour.

103., it is characterized in that according to the described display device of claim 102:

Above-mentioned electric field maintaining body is for should be with the electric field that applied 1 electric field maintaining body according to 1 maintenance,

Above-mentioned discharge mechanism is 1 discharge mechanism, electric field discharge that it makes above-mentioned 1 electric field applying mechanism be kept in 1.

104., it is characterized in that according to the described display device of claim 102:

Above-mentioned display device comprises:

Active-matrix substrate is formed with TFT on it, this TFT drives above-mentioned electric field applying mechanism, above-mentioned electric field maintaining body and display element or constitutes the part of these mechanisms.

105. any one the described display device according in the claim 102～105 is characterized in that:

Above-mentioned Electrical Discharge Machine configuration is formed on the above-mentioned active-matrix substrate.

106. any one the described display device according in the claim 102～105 is characterized in that:

Above-mentioned display element is for adopting the display element of liquid crystal.

107. any one the described display device according in the claim 102～105 is characterized in that:

Above-mentioned display element is the EL display element.

108. any one the described display device according in the claim 102～105 is characterized in that:

Above-mentioned discharge mechanism is simultaneously as the discharge mechanism of display element, wherein constitutes the material of display element of the part of the electric field that is arranged in the height that applies above-mentioned electric field applying mechanism itself, discharges and plays a role by suitable resistance.

109., it is characterized in that according to the described display device of claim 106:

Above-mentioned discharge mechanism is simultaneously as the discharge mechanism of display element, wherein constitutes the material of display element of the part of the electric field that is arranged in the height that applies above-mentioned electric field applying mechanism itself, discharges and plays a role by suitable resistance.

110., it is characterized in that according to the described display device of claim 107:

Above-mentioned discharge mechanism is simultaneously as the discharge mechanism of display element, wherein constitutes the material of display element of the part of the electric field that is arranged in the height that applies above-mentioned electric field applying mechanism itself, discharges and plays a role by suitable resistance.

111., it is characterized in that according to the described display device of claim 108:

Above-mentioned simultaneously as the conductance of the resistance of the discharge mechanism of display element greater than 10 ^-10Siemens.

112., it is characterized in that according to the described display device of claim 109:

Above-mentioned simultaneously as the conductance of the resistance of the discharge mechanism of display element greater than 10 ^-10Siemens.

113., it is characterized in that according to the described display device of claim 110:

Above-mentioned simultaneously as the conductance of the resistance of the discharge mechanism of display element greater than 10 ^-10Siemens.

114., it is characterized in that according to claim 102 or 103 described display device:

Above-mentioned active-matrix substrate comprises pixel capacitors and the capacity auxiliary capacity less than above-mentioned pixel capacitors.

115., it is characterized in that according to claim 102 or 103 described display device:

Above-mentioned active-matrix substrate does not comprise auxiliary capacity.

116. any one the described display device according in the claim 102～105 is characterized in that:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

117. a display device, it comprises the corresponding indication mechanism of dynamic image, and wherein pixel and is arranged with a plurality ofly longitudinally, laterally side by side, can carry out the demonstration of dynamic image thus, it is characterized in that each pixel of the corresponding mechanism of this dynamic image comprises:

The electric field applying mechanism, it applies electric field;

The electric field maintaining body, it keeps the above-mentioned electric field that applies;

Display element, it shows by applying electric field, if electric field is low, carries out black display;

Discharge mechanism, it discharges to the electric field that above-mentioned electric field maintaining body is kept in official hour.

118., it is characterized in that according to the described display device of claim 117:

Above-mentioned electric field maintaining body is for should be with the electric field that applied 1 electric field maintaining body according to 1 maintenance,

Above-mentioned discharge mechanism is 1 discharge mechanism, electric field discharge that it makes above-mentioned 1 electric field applying mechanism be kept in 1.

119., it is characterized in that according to the described display device of claim 118:

It comprises the black display voltage feed mechanism of supplying with black display voltage.

120. a display device, it comprises the corresponding indication mechanism of dynamic image, and wherein pixel and is arranged with a plurality ofly longitudinally, laterally side by side, can carry out the demonstration of dynamic image thus, it is characterized in that each pixel of the corresponding mechanism of this dynamic image comprises:

The electric field applying mechanism, it applies electric field;

The electric field maintaining body, it keeps the above-mentioned electric field that applies;

Display element, it shows by applying electric field, if electric field is low, carries out white and shows;

Discharge mechanism, it is in official hour, and the electric field that above-mentioned electric field maintaining body is kept discharges.

121., it is characterized in that according to the described display device of claim 120:

Above-mentioned electric field maintaining body is for should be with the electric field that applied 1 electric field maintaining body according to 1 maintenance,

Above-mentioned discharge mechanism is 1 discharge mechanism, its in 1, the electric field discharge that above-mentioned 1 electric field applying mechanism is kept.

122., it is characterized in that according to the described display device of claim 120:

It comprises the white display voltage feed mechanism of supplying with white display voltage.

123. any one the described display device according in the claim 120～122 is characterized in that:

Above-mentioned display element is the element of the liquid crystal of employing ocb mode.

124. any one the described display device according in the claim 117～122 is characterized in that:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

125. the driving method of a display device, this display device comprise the corresponding indication mechanism of dynamic image, wherein pixel and is arranged with a plurality ofly longitudinally, laterally side by side, can carry out the demonstration of dynamic image thus, it is characterized in that this method comprises:

Electric field applies step, in order to show, the display element of the corresponding indication mechanism of above-mentioned dynamic image is applied electric field;

Electric field keeps step, keeps the above-mentioned electric field that applies;

Discharge step in official hour, is discharged to the electric field of above-mentioned maintenance;

Alternate steps, rule according to the rules changes the alternating polarity that applies the electric field that step applies by above-mentioned electric field;

Display element alternating discharge path supplying step as the discharge path of the display element that discharges by above-mentioned discharge step, is supplied with and the synchronous voltage of above-mentioned alternately electric field maintenance.

126. the driving method according to the described display device of claim 125 is characterized in that:

Above-mentioned indication mechanism is the display device of maintenance.

127. a display device shows by applying electric field, it is characterized in that this device comprises:

The electric field applying mechanism, it applies electric field;

The electric field maintaining body, it keeps the above-mentioned electric field that applies;

Discharge mechanism, it discharges to the electric field of above-mentioned maintenance at the appointed time;

The discharge potential feed mechanism, it supplies with discharge potential so that bring into play the effect of above-mentioned discharge mechanism;

The alter polarity control gear, its mode that applies electric field according to the alternating polarity variation that makes voltage in above-mentioned electric field applying mechanism is controlled;

Alternating discharge current potential applying mechanism, it applies with above-mentioned alternately electric field above-mentioned discharge potential feed mechanism and keeps synchronous voltage.

128., it is characterized in that according to the described display device of claim 127:

Above-mentioned display device adopts the type of the display element of maintenance as indication mechanism for pixel.

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