CN1755754A - Image display apparatus - Google Patents
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- CN1755754A CN1755754A CN 200510050951 CN200510050951A CN1755754A CN 1755754 A CN1755754 A CN 1755754A CN 200510050951 CN200510050951 CN 200510050951 CN 200510050951 A CN200510050951 A CN 200510050951A CN 1755754 A CN1755754 A CN 1755754A
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Abstract
The invention provides an image display device; wherein, a brightness function-worthy detecting component (103) can work out the summation of the brightness data input from an image processing component (102) during spreading to 1 frame. When the summation and the brightness data are all up to the maximum, the ratio of 1 frame accumulated value, namely the display area rate can be worked out and can be taken as the brightness function worthy. A scanning manner determine component (108) can be controlled to conduct the scanning method with a first scanning manner, when the brightness function worthy are judged that the display area rate is equal to or less than 0.3; when the brightness function worthy are judged that the display area rate is more then 0.3, the scanning method with a second scanning manner can be used. Numbers of the scanning wires with additional selecting signals are different when the first scanning manner and the second scanning manner are selected at the same time or are repeated during two continuous selecting periods.
Description
Technical field
The present invention relates to image display device.
Background technology
As the example of this image display device, the known formation as flat 6-342636 communique of Jap.P. Publication Laid-Open (US5659329) (patent documentation 1) or the flat 8-212944 communique of Jap.P. Publication Laid-Open (patent documentation 2).The image display device of patent documentation 1 is a plurality of surface conductive type electronic emission elements by means of a plurality of capable distributions and a plurality of row distribution and carries out wiring rectangularly and constitute.And, when delegation's distribution being provided the selection current potential, provide the driving current potential respectively to a plurality of row distributions, by means of select current potential and the potential difference (PD) that drives current potential (below, be called " driving voltage ") drive the demonstration that electronic emission element carries out 1 line part thus, and then, switch the capable distribution that to select in turn with the sweep frequency of regulation and carry out the scanning of vertical direction, realize that thus the image of 1 frame shows.
In patent documentation 2, disclosed the matrix distribution has been cut apart along carrying out 2 up and down, and two zones being cut apart have been possessed the formation of row distribution drive division and row distribution drive division respectively.
In addition, it is also known for and be beneficial to the driving method that this matrix panel carries out under the situation that the interlacing the situation that shows as the TV signal drives selecting to show for half and half image duration every 2 row (below, be called the simulation interlacing in this manual and drive).
In Jap.P. Publication Laid-Open 2000-267624 communique (patent documentation 3), disclosed the example of the array display device that possesses correlation detecting circuit and white peak testing circuit.It is when the correlativity to the line direction of the data of supplying with display panel detects, detect by the brightness degree of white peak testing circuit data, only there is the high brightness level more than the regulation grade and has under the situation of correlativity being judged to be, and be detected other row and combine and scan with correlativity.
Summary of the invention
The object of the present invention is to provide a kind of image display device that can realize that suitable image shows.
In order to achieve the above object, the 1st technical scheme of the present invention provides a kind of image display device, constitutes to have: n bar sweep trace, and wherein n is the integer more than or equal to 3; Sweep circuit is to exporting the selection signal that is used for a part of sweep trace among the said n bar sweep trace is chosen as in turn the sweep trace that becomes luminous object during each selection of shifting in turn; A plurality of display elements are used to form a plurality of pixels that constitute above-mentioned a plurality of sweep traces; Estimate circuit, output corresponding to the value of the lightness of the image that pixel constituted that forms respectively by above-mentioned a plurality of display elements, be evaluation of estimate; And control circuit, change the condition of scanning in the above-mentioned sweep circuit according to above-mentioned evaluation of estimate so that said n bar sweep trace respectively on unit interval of selecteed time and with the rate of change of this unit interval.
Here, the unit interval is meant becomes the time of benchmark to sweep trace is selecteed respectively when the time, sum was estimated, as long as can determine comparative result uniquely.For example, can be with from beginning to show that a picture is made as the unit interval for 1 second, but be not limited to this.
In addition, as with the corresponding value of the lightness of image be evaluation of estimate, can utilize various values.Specifically, can utilize the value of the mean value of expression and the corresponding brightness of above-mentioned a plurality of pixels.In the case, above-mentioned evaluation circuit can constitute based on the input signal to this evaluation circuit and calculate the circuit of the value of expression and the mean value of the corresponding brightness of above-mentioned a plurality of pixels as above-mentioned evaluation of estimate.
In addition, though, also can be mean value itself, then utilize what kind of value can so long as represent the value of mean value indirectly as the brightness evaluation of estimate of value of the mean value of this brightness of expression.Summation about brightness is to represent an example of the value of mean value indirectly, for example, can also calculate the summation or the mean value of brightness, and on this result of calculation computing other such information of contrast control signal for example.In addition, can also carry out the evaluation of the relation of result of calculation and setting, the evaluation of other conditions such as degree of comparing control signal separately, get its result logic and.In addition, can also get with amplified corresponding to the brightness of each pixel specified multiple, summation or mean value, be the brightness evaluation of estimate with this value as the summation of expression brightness or the value of mean value.
Brightness is estimated circuit and can also calculated for the summation of the brightness of a plurality of pixels based on input signal or during corresponding to the mean value of the brightness of a plurality of pixels, the nitometer that has carried out weighting calculated summation or mean value.
Brightness is estimated circuit and can also calculated for the summation of the brightness of a plurality of pixels based on input signal or during corresponding to the mean value of the brightness of a plurality of pixels, calculate for the whole pixels that constitute picture or the summation or the mean value of its one part of pixel.
In addition, can also adopt the value that obtains as the result who has shown image as above-mentioned evaluation of estimate.
The evaluation of estimate that obtains as the result who has shown image for example can adopt has carried out the value of measuring to the lightness of shown image.In addition, the electronics line of have the electronic emission element that comes emitting electrons by impressed voltage at display element, launching by irradiation from electronic emission element carries out luminous illuminated component and the electronics that will launch from electronic emission element imports under the situation of anode electrode of illuminated component, and the evaluation of estimate that obtains as the result who has shown image can also adopt the anode current of the anode electrode of flowing through.
In addition, as the formation that changes according to evaluation of estimate, for example can enumerate the formation of the condition the when condition of scanning changed that evaluation of estimate is made as with respect to the relation of setting.Though here, this evaluation of estimate for example is meant with respect to the relation of setting, and evaluation of estimate is also bigger or also little than setting, perhaps equal and so on relation, but be not limited to these, as long as can determine condition that the condition of scanning is changed with respect to the relation of setting according to evaluation of estimate.
In this invention, optimized technical scheme is that control circuit has when evaluation of estimate is also bigger than setting, and the condition of scanning in the sweep circuit is changed so that n bar sweep trace is distinguished the ratio change big function of the total time of selecteed time with respect to the unit interval.
In this invention, optimized technical scheme is that control circuit has when evaluation of estimate is also littler than setting, and the condition of scanning in the sweep circuit is changed so that n bar sweep trace is distinguished the ratio change big function of the total time of selecteed time with respect to the unit interval.
In this invention, optimized technical scheme is that control circuit has evaluation of estimate and a plurality of setting are compared, and belong to which scope according to evaluation of estimate, change in the sweep circuit the condition of scanning so that n bar sweep trace respectively total time of selecteed time with respect to the function of the rate of change of unit interval.
In this invention, at least a certain side in the quantity of the sweep trace that repeats to select in during the quantity of the optimized technical scheme sweep trace that to be control circuit select simultaneously by change and two the continuous selections controls so that added the rate of change of the total time of the time of selecting signal with respect to the unit interval.
In this invention, optimized technical scheme is also to possess intednsity circuit, and intednsity circuit moves the luminance difference that takes place when relaxing the condition of scanning in the above-mentioned sweep circuit of change.
Invention the application of display device as other also comprises following invention in addition.That is, a kind of image display device has: n bar sweep trace, and wherein n is the integer more than or equal to 3; Sweep circuit is to exporting the selection signal that is used for a part of sweep trace among the said n bar sweep trace is chosen as in turn the sweep trace that becomes luminous object during each selection of shifting in turn; A plurality of display elements are used to form a plurality of pixels that constitute above-mentioned a plurality of sweep traces; And control circuit, change the condition of scanning in the above-mentioned sweep circuit according to the auxiliary signal that is associated with the picture signal of being imported so that said n bar sweep trace respectively on unit interval of selecteed time and with the rate of change of this unit interval.
Here, above-mentioned control circuit can adopt the formation that is set as follows the condition of scanning, be that above-mentioned auxiliary signal is that the expression image that should show is that situation and the above-mentioned auxiliary signal of the specified signal of rest image is that image that expression should show is that the situation of the specified signal of live image is compared, above-mentioned and diminish with respect to the ratio of above-mentioned unit interval.
In addition, above-mentioned control circuit can preferably adopt the formation that is set as follows the condition of scanning, be above-mentioned auxiliary signal to be the expression image that should show compare for the situation of the specified signal of the image that constitutes I sports program for the situation of the specified signal of the image that constitutes film and above-mentioned auxiliary signal are the expression images that should show, above-mentioned and diminish with respect to the ratio of above-mentioned unit interval.In addition, display element can also have by impressed voltage to come the electronic emission element of emitting electrons and carry out luminous illuminated component by shining the electronics line of launching from electronic emission element.
And then electronic emission element can also be a surface conductive type electronic emission element.
As described above, according to the present invention, just can obtain the display image of high brightness, and the image display device that can realize that suitable image shows can be provided according to desirable situation.
Description of drawings
The present invention and further advantage thereof will be understood below in conjunction with the description of the drawings best by reference.Wherein,
Fig. 1 is the figure of the formation of the 1st embodiment among expression the present invention.
Fig. 2 is the figure according to the improvement of the light characteristic of display area rate in expression the present invention the 1st embodiment.
Fig. 3 is the figure of the demonstration example of utilizing the 1st line scanning mode in expression the 1st embodiment of the present invention.
Fig. 4 is the figure of the demonstration example of utilizing the 2nd line scanning mode in expression the present invention the 1st embodiment.
Fig. 5 be represent existing usefulness technology reduce the figure of characteristic according to the brightness of display area.
Fig. 6 is the figure of expression demonstration example of utilizing the 1st line scanning mode of the 1st embodiment according to the present invention.
Fig. 7 is the figure according to the improvement of the light characteristic of display area of expression the 4th embodiment according to the present invention.
Fig. 8 is the figure according to the improvement of the light characteristic of display area of expression the 5th embodiment according to the present invention.
Fig. 9 is the figure of an example of the scanning timing signal that is used to realize that the line scanning mode is switched of expression the 1st embodiment according to the present invention.
Figure 10 is the figure of the formation of expression the present invention the 6th embodiment.
Embodiment
Below, with reference to accompanying drawing on one side with regard to embodiments of the present invention describe on one side.In addition, in whole figure of following embodiment, to same or corresponding part additional phase mark together.In addition, image display device according to the embodiment of the present invention and driving method thereof for example are optimized for the display equipment that the picture signals such as picture output signal (signal of video signal) that show TV signal or computing machine etc. are shown.
In addition, in the following embodiments, describe as example with the image display device that has used surface conductive type electronic emission element, this invention also can preferably be suitable for image display device of having used cold cathode type electronic emission elements such as FE type element or mim type element or EL element, liquid crystal etc. etc.
(the 1st embodiment)
Shown in Fig. 1 according to the formation of the image display device of the 1st embodiment.
Display surface board 107 is by the multiple electron beam source that surface conductive type element 1071 has been carried out distribution rectangularly and accept the irradiation of its electron beam and carry out luminous face and constituted.On the face, add and be used for high tension voltage bias voltage that electron beam is quickened.The face has and the corresponding light-emitting zone 1072 of each surface conductive type radiated element.Display element is constituted by surface conductive type element 1072 with corresponding to its light-emitting zone 1072 in this embodiment.The substrate that has the substrate of surface conductive type element 1071 and have a light-emitting zone be configured so that the electron impact of launching from surface conductive type element to the light-emitting zone of correspondence, but in Fig. 1 for easy to understand, these substrates are staggered to be illustrated.About the manufacture method of display surface board 107, in the flat 6-342636 communique of Jap.P. Publication Laid-Open, record and narrate in detail, so omit in this article.
Such as in the flat 6-342636 communique of Jap.P. Publication Laid-Open the record as having used the luminosity grade control method people of the display panel of surface conductive type element to consider some.Be embodied as prerequisite driving in turn with so-called pulse-length modulation line among these methods, in this 1st embodiment, promptly, row distribution drive division 105 will determine the potential pulse of the corresponding pulse width of brightness data that has Yu imported of each pixel luminous quantity to add to the row distribution outward, on the other hand, row distribution drive division 106 is respectively to making its luminous line add the selection potential pulse, non-selection wire is added non-selection voltage, show by image is carried out in the line scanning of selecting in turn of advancing.In addition, under the situation of simple pulse-length modulation, certain element carry out luminous during in by the brightness shown in this element for certain, but then modulated in the integrated value of (particularly being a horizontal scan period) resulting brightness of longer time.That is, the integrated value of pulse width brightness more in short-term, the integrated value of brightness is also little when longer than pulse width, for this reason, is that brightness is modulated even if pulse-length modulation is also seen concerning user's eyes.Thereby, be made as also under the situation of pulse-length modulation among the application that brightness is modulated to be handled., the row distribution drive division 105 of supplying with modulation signal as the row distribution of modulation distribution is equivalent to modulation circuit here, is equivalent to sweep circuit giving with the capable distribution drive division 106 of selecting signal as the capable distribution of scan wiring.Scan wiring becomes and writes scanned objects, becomes the object that writes of modulation signal by writing the element that is connected on the selected scan wiring of scanning.Become the element that connected on the scan wiring of the alternative that writes scanning and roughly begin luminously simultaneously with writing in this embodiment, the moment that finishes in the selection that is used to write stops luminous.That is, in this embodiment with become the corresponding formed sweep trace of the scan wiring that writes scanned objects and just become the sweep trace of luminous object.Thereby, be selected to the sweep circuit of the sweep trace of luminous object, be the capable distribution drive division 105 that writes scanning with regard to double as.
The power supply and being used to that also possesses the current potential of the output voltage pulse that is used to determine row distribution drive division 106 determines the power supply of current potential of the selection potential pulse of row distribution drive division 106 outputs, and these power supply output valves can be controlled.
Row distribution drive division 106 by with the bar number of panel row distribution SW device with quantity, with being used for this SW device is given and the sweep signal generating unit composition of representing selection/non-selected sweep signal, and respectively when selecting with the scanning voltage pulse, and when non-the selection, add to the capable distribution of display panel portion 107 outside with non-selection bias voltage.
Picture signal input part 101 is the input parts that are used to accept from the signal of video signal input of outside.Though illustrate, but to transmit signal of video signal and make under the situation that the input signal of video signal carried out according to original signal being transfused under the form of compression in order to bring, also comprising compressed signal is carried out decompress(ion) and is demodulated to the lsb decoder of original signal with confined transmitting pin.
The signal of video signal that is input to picture signal input part 101 is sent to picture signal handling part 102.
In picture signal handling part 102, constitute with the parts number pixel that is suitable for display surface board 107 sampling, according to the electronics line emission measure required value data suitable brightness data of received image signal generation with each pixel of display surface board 107 from the picture signal of picture signal input part 101.
About the perpendicular line number, under effective reading scan line number of input signal of video signal situation different with the demonstration line number of display surface board 107, carry out expansion such as scanning line interpolating and dwindle processing, output is suitable for the driving luminance signal of the demonstration line number of display surface board 107.
The brightness data that generates in order to make can with the selection scan-synchronized of the capable distribution that will show after show that the brightness data of 1 row is sent to row distribution drive division 105 in being listed in during 1 line sweep.Because more as the situation of prerequisite, so that picture signal considers that γ characteristic that CRT held is implemented the situation that γ proofreaies and correct is more with the display device of having used CRT.For this reason, as described above, luminosity and the roughly proportional display panel of electronics line emission measure required value data are being made as under the situation of object, also in picture signal handling part 102, are cancelling contrary γ that this γ that is implemented in advance proofreaies and correct, so-called and proofread and correct.
Picture signal handling part 102 separates the synchronizing signal that is comprised in the received image signal from picture signal, be that the basis generates each several part is moved necessary clock signal or timing signal and supply with the synchronizing signal.
Brightness is estimated circuit and as the brightness evaluation of estimate test section 103 of control circuit, acceptance calculates the brightness evaluation of estimate that the luminosity state of display surface board 107 is inferred from the suitable brightness data of electronics line emission measure required value data picture signal handling part 102 and display surface board 107 each pixel separately.The calculating of this brightness evaluation of estimate in addition, both can use resolve into RGB corresponding signal of all kinds before luminance signal, also can with resolve into RGB corresponding signal of all kinds after signal as the signal that has with the corresponding value of brightness.
Carry out the comparison of this brightness evaluation of estimate and specified reference value, the control signal that will be used for the switched scan mode according to its result outputs to scan mode determination section 108 and brilliance control portion 104.In addition, will output to brilliance control portion 104 with the signal that the brightness evaluation of estimate that calculates has a correlativity.Owing to want the brightness evaluation of estimate is set as the value of the expression picture lightness that the user felt, so for the evaluation of estimate of being undertaken by brightness evaluation of estimate test section 103 is calculated, in this 1st embodiment, carrying out will be from the processing of the whole additions of the brightness data of picture signal handling part 102 in the hope of summation in 1 image duration.Then, all be that the ratio (display area rate) of 1 frame aggregate-value under the peaked situation is made as the brightness evaluation of estimate with resulting summation and brightness data.
Brilliance control portion 104 is the signals that are used for according to having correlativity with the brightness evaluation of estimate that is calculated by brightness evaluation of estimate test section 103, to the control part that changes from the brightness data suitable with the electronics line emission measure required value data of each pixel display surface board 107 picture signal handling part 102.Here, brilliance control portion 104 is equivalent to intednsity circuit.
Accept control signal as the scan mode determination section 108 of the control circuit that the condition of scanning is changed, will be used for the signal that the capable distribution scan method to display surface board 107 changes and output to capable distribution drive division 106 from brightness evaluation of estimate test section 103.
Fig. 3, Fig. 4 are the figure that represents the demonstration example of utilizing the 1st, the 2nd line scanning mode in this 1st embodiment respectively.The display element that all will form the pixel of composing images part for easy to understand disposes by 8 row * 6 row, puts down in writing to be referred to as 8 examples that are listed as the small panel of * 6 row matrixs.
Fig. 3 utilizes the capable distribution of selecting 1 row a scan period, selects the secondly scan method of the 1st scan mode of the capable distribution of 1 row of adjacency in next scan period.Reducing the curve of characteristic example shown in ruling with the single-point of Fig. 2 according to the brightness of display area and the represent during scan method of this moment.
The reduction of such display brightness is to form the drive current of the surface conductive type element of each pixel to flow into, flow into row distribution drive division in back, selected capable distribution interflow from each row distribution.This moment, the driving voltage that is added on the electronic emission element just reduced because the resistance value that the row distribution is held with the influence of selecting electric current electric potential gradient takes place on scan wiring.This brightness reduces based on the current value that flows through on the row distribution, promptly, display image and changing.Thereby, so can cause that hardly brightness reduces because the current potential amount that takes place on the row distribution is less under the luminous situation of the small size part that only makes display device, but along with light-emitting area (the perhaps length of the illuminating part of capable distribution direction) the big brightness reduction amount of change of display device becomes big.
In addition, Fig. 4 utilizes the capable distribution of selecting 2 row a scan period simultaneously, and repeats to select the scan method of the 2nd such scan mode of the 1 capable distribution of going in next scan period.Carrying out the brightness according to display area under the situation of this scan method reduces the characteristic example and represents with the curve shown in the dotted line of Fig. 2.
As shown in Figure 2, in the scan method of utilizing the 2nd scan mode shown in Figure 4, become two 2 times length owing on each scan wiring, add the total time of the time of selecting signal, just can access roughly two ones brightness so compare with the scan method of utilizing the 1st scan mode shown in Figure 3.
In this 1st embodiment, control as shown in Figure 2 with the capable distribution scan method that in display area rate 0.3, makes display surface board 107 and switch.Promptly, when be judged as the brightness evaluation of estimate that the luminosity state of display surface board 107 is inferred in brightness evaluation test section 103 is under the situation of display area rate below 0.3, scan mode determination section 104 is carried out the such control of the scan method of utilizing the 1st scan mode shown in Figure 3, be judged as the display area rate than 0.3 big situation under scan mode determination section 104 then carry out the such control of the scan method of utilizing the 2nd scan mode shown in Figure 4.Here, brightness evaluation of estimate test section 103 is equivalent to estimate circuit.By controlling like this, but the zone with shown in the oblique line portion among Fig. 2 just becomes the light-emitting zone in the inventive images display device for this reason.Compare with the characteristic in the example in the past shown in Figure 5 significantly to improve and just become possibility in large tracts of land part light characteristic.In addition, in this invention, can realize the improvement of such light characteristic, and can not increase the quantity of driving circuit, perhaps make it complicated, cost is increased.
As from the hatched example areas of Fig. 2 as can be known, in that carry out in the front and back of this threshold value the brightness ladder taking place under the situation that scan mode switches with the threshold value 0.3 of display area rate poor.Poor in order to improve this brightness ladder, in this 1st embodiment, possess brilliance control portion 104 is arranged.Promptly, brightness is estimated test section 103 and is outputed to brilliance control portion 104 with the scan mode switching signal and with signal that the brightness evaluation of estimate that calculates has a correlativity, and before and after scan mode is switched in brilliance control portion 104 to carrying out variable control so that luminance difference is inhibited from the brightness data suitable picture signal handling part 102 with the electronics line emission measure required value data of each pixel display surface board 107.
This variable control makes the brightness reduction characteristic according to display area realize carrying out like this as an example with the represented characteristic of the curve shown in the solid line of Fig. 2.
Though be illustrated with the example that the size of brightness data is carried out variable control in order to suppress luminance difference, but the method that the luminance difference before and after scan mode switched suppresses is not only limited to this certainly, is controllablely just can be suitable for this invention as long as display brightness is changed.Particularly, voltage that has added on disclosing by means of electronic emission element in the flat 6-342636 communique of Jap.P. Publication Laid-Open or drive current or the high tension voltage that the ejected electron Shu Jinhang of institute is quickened change display brightness, they can be used in to be used for the control that luminance difference suppresses.
And then, can also possess the device that the variation of switching the vertical exploring degree characteristic that causes because of scan mode is relaxed.Particularly be exactly the contour enhancement circuit that possesses vertical direction, switch according to scan mode the profile enhancing amount in this circuit is switched.If the example with Fig. 2 describes, then under the situation of brightness evaluation of estimate, switch to the capable distribution of selecting 2 row a scan period simultaneously, and repeat the 1 capable distribution ガ that goes in next scan period and repeat such scan method greater than display area rate 0.3.Select 1 row multiple scanning simultaneously owing to 2 row and change on the direction of vertical exploring degree characteristic landing this moment, so the action of contour enhancement circuit is switched so that the profile enhancing quantitative change of vertical direction is big.And if then make profile enhancing amount in this circuit and the interlock of brightness evaluation of estimate variable, it is better just can to make scan mode switch the connection situation of front and back.
Switching is illustrated Fig. 3 and scan mode shown in Figure 4 as scan mode in addition, but is not limited thereto, and for example can also select scan mode as shown in Figure 6.That is, (for example 1/60sec) is separated into two sub-image durations (1/120sec) with 1 image duration, during subframe 1, select odd number (2N+1, N=0,1 simultaneously in each scan period, ...) row and the even number (2N) of adjacency OK, and the view data of each odd-numbered line is shown.On the other hand, during subframe 2, then the odd number (2N-1) of selecting even number line (2N) row and adjacency simultaneously in each scan period OK and shows the view data of each even number line.This form is for example especially suitable when interlace signal is transfused to.
As an example of these Fig. 3～implementation method that scan mode shown in Figure 6 is switched, the sweep signal of each row that is carried out in the distribution drive division 106 of being expert at generates and gets final product as following.
Possess with the row distribution with the shift register of quantity, this shift register is supplied with the start trigger signal that line scanning begins and is used to switch the shift clock signal of selection wire in turn.Just can realize Fig. 3～scan mode shown in Figure 6 by the phase relation of switching this start trigger signal and shift clock signal as shown in Figure 9.
Like this as different a plurality of conditions of scanning of total time, just can adopt in the quantity that adds the scan wiring of selecting signal during the selection or during two continuous selections, repeat to add the quantity or the mutually different condition of scanning of this two side of the scan wiring of selecting signal.
In addition, be not to be defined in aforementioned content about the brightness evaluation of estimate yet, can consider various application.
Particularly, improve under the situation of this point in the brightness reduction that is conceived to because of the influence under the voltage drop of following the electric current increase of flowing through on the scan wiring causes, because it is should influence when the high brightness display object that shows along the more microscler shape of scan wiring direction very remarkable, so in order to calculate the brightness evaluation of estimate, can also be to obtaining the line aggregate-value of brightness data during each line sweep, measure under the voltage drop that this line takes place from this line aggregate-value imagination, and count the brightness evaluation of estimate that additive operation is made as 1 frame by the line aggregate-value that has passed through weighting with this imagination value is carried out effective scanning line.
In addition, can also be conceived to want that more this point appears in the object that the central authorities at picture show, use at middle body and peripheral part weight coefficient is carried out multiplying and summation or the mean value corresponding brightness of a plurality of pixels.Be not limited in addition with the summation of the corresponding brightness of all pixels or mean value can also be with the whole pixels that constitute picture among the summation or the mean value of the corresponding brightness of one part of pixel.
In addition, the brightness evaluation of estimate both can be a result of calculation itself, also can be on this result of calculation for example computing the evaluation of estimate of contrast control signal.In addition, can also carry out the result of calculation evaluation big or littler than setting, the evaluation of other conditions of degree of comparing control signal etc. separately, get this result logic and evaluation of estimate.
In this 1st embodiment, carry out scan mode change becoming high brightness under than 0.3 big situation, and can preferentially show with the exploring degree smaller or equal to 0.3 situation is next in the brightness evaluation of estimate.This when to be the inventor according to the TV moving picture signal of a plurality of samplings that will arbitrarily extract out be made as received image signal the brightness evaluation of estimate and carried out this image property evaluation test found that the wide more tendency of situation of area that exists the high image high brightness of brightness evaluation of estimate to show.Owing to the image that image that comprises more high brightness large area region and brightness evaluation of estimate are lower is compared, exist brightness along the vertical direction to change the lower tendency of occurrence rate of less high-resolution signal, just need not take notice of very much so select to scan the exploring degree deterioration that causes simultaneously because of a plurality of row.Thereby,, also can prevent the reduction of vertical exploring degree even if under situation about showing line by line.
But the value of brightness evaluation of estimate 0.3 and so on is an example only, also can obtain same effect even if need not the different value of superfluous words.
As described above, according to this 1st embodiment, calculate summation with the corresponding brightness of a plurality of pixels based on input signal, and according to the corresponding brightness evaluation of estimate of this result of calculation, to the condition of scanning in the sweep circuit change so that each unit interval n bar scan wiring add on separately the time of selecting signal total time (with) change, just can carry out preferable image display thus.
(the 2nd embodiment)
In the 1st embodiment, the summation of the brightness data by calculating for 1 image duration obtains the brightness evaluation of estimate.Under the situation of carrying out such demonstration control based on the brightness evaluation of estimate of 1 image duration, owing to needing for 1 image duration for the evaluation of estimate computing, so possess frame buffer, carry out 1 frame delay and go forward side by side and exercise the processing of shown frame and evaluation of estimate calculating frame synchronizationization.
But, since more as the character of received image signal in the high situation of the correlativity of continuous inter frame image signal, for the cost decline of seeking display device can also not used frame buffer and utilized the evaluation of estimate of former frame to show control.
At this moment, though it is comparatively rare, but under the situation that the picture signal of the higher such prerequisite of the correlativity that does not meet continuous inter frame image signal is transfused to, promptly, the brightness evaluation of estimate of continuous frame signal compares the big frame of the threshold value that determined and little frame and occurs under the situation that such image is transfused to the possibility that becomes not so good demonstration just being arranged repeatedly.
For this reason, in the 2nd embodiment, will be used for unit interval that evaluation of estimate calculates be made as more long-term between rather than 1 image duration.Approximately need the 1 second～several seconds of less than owing to consider the human time that variation is not responded to offensively to quantity of stimulus, so will set 1 second the unit interval for here.Certainly need not the superfluous words value of being not limited thereto and to make its variable being suitable for.
In order to calculate evaluation of estimate, as carrying out in the 1st embodiment, calculate the summation of the brightness data of 1 image duration, and its result is stored in the storage arrangement that is possessed in the brightness evaluation of estimate test section 103 with 1 second unit interval.Then by making the evaluation of estimate equalization of the number of times suitable with the renewal frequency of received image signal, just can access brightness evaluation of estimate in the unit interval (for example if the renewal speed of received image signal 60Hz, then find the solution the frame evaluation of estimate 60 times, and carry out their equalization processing).
By using such brightness evaluation of estimate computing method, calculate mean value with the corresponding brightness of a plurality of pixels based on input signal, and based on the corresponding brightness evaluation of estimate of this result of calculation, the condition of scanning in the sweep circuit is changed so that each unit interval changed in the total time that n bar scan wiring adds the time of selecting signal on separately, carry out preferable image display thus and just become possibility.
(the 3rd embodiment)
Though in the 2nd embodiment, the brightness evaluation of estimate is found the solution according to brightness data, may not be defined in this, can also obtain evaluation of estimate with method for distinguishing.
Though in the pie graph of Fig. 1, do not illustrate, display surface board 107 is by the multiple electron beam source that surface conductive type element matrix shape ground has been carried out distribution and accept the irradiation of its electron beam and carry out luminous face and constituted, and also possesses high-voltage power supply portion in addition and be used for high tension voltage bias voltage that electron beam is quickened adding on the face.
Also possesses the test section that the mean value that supplies to the electric current of display surface board 107 from this high-voltage power supply is detected, by with this detected value by treating as having carried out the resulting brightness evaluation of image result displayed, just can carry out and the equal control of the 2nd embodiment.
Carried out the resulting evaluation of estimate of image result displayed according to conduct based on input signal like this, the condition of scanning in the sweep circuit is changed so that each unit interval changed in the total time that n bar scan wiring adds the time of selecting signal on separately, carry out preferable image display thus and just become possibility.
(the 4th embodiment)
In the 1st～the 3rd embodiment, the evaluation of estimate of the lightness of display frame is detected, and compare with the threshold value that is predetermined, under the situation of the evaluation of estimate also bigger, carry out the scan mode change can implement high brightnessization than threshold value.The present invention may not be defined in such action, can also carry out the scan mode change can implement high brightnessization as following will the explanation under the evaluation of estimate situation also littler than threshold value.
The luminosity characteristic of having carried out under the situation of this scan mode change is shown in Figure 7.But be light-emitting zone on the image display device of present embodiment with the zone shown in the oblique line portion among Fig. 7.Here setting in threshold value 0.05 changes scan mode.
As from the hatched example areas of Fig. 7 as can be known, carrying out with threshold value 0.05 under the situation that scan mode switches, it is poor in the front and back of this threshold value the brightness ladder to take place.In order to improve this brightness ladder difference as described in the 1st embodiment, brightness is estimated test section 103 and is outputed to brilliance control portion 104 with the scan mode switching signal and with signal that the brightness evaluation of estimate that calculates has a correlativity, and before and after switching in brilliance control portion 104 to carrying out variable control so that luminance difference is inhibited from the brightness data suitable picture signal handling part 102 with the electronics line emission measure required value data of each pixel display surface board 107.
This variable control realizes that reducing characteristic with the represented brightness according to display area of the curve shown in the solid line of Fig. 7 carries out like this as an example.
The 4th embodiment like this is like that by hour carrying out the scan mode change to obtain high brightness in the brightness evaluation of estimate, just the peak brightness of small size portion can be uprised and the consumption of display device overall electric power is increased.
In addition, according to this 4th embodiment, for example, require high brightness to show under the situation that the picture signal of the empty such scene of twinkLing stars shows in to the night sky for the radiance sense that increases star such a only as under the situation that the specific image of small size portion is shown and so on high brightness, can realize that also suitable image shows.
As described above, according to this 4th embodiment, calculate summation with the corresponding brightness of a plurality of pixels based on input signal, and according to the corresponding brightness evaluation of estimate of this result of calculation, the condition of scanning in the sweep circuit is changed so that each unit interval changed in the total time that n bar scan wiring adds the time of selecting signal on separately, just can carry out preferable image display thus.
(the 5th embodiment)
Luminosity characteristic in the 5th embodiment shown in Figure 8.But the zone shown in the oblique line portion among Fig. 8 is the light-emitting zone on the image display device of the 5th embodiment for this reason.Here setting in threshold value 0.05 and 0.3 changes scan mode.That is, the brightness evaluation smaller or equal to 0.05 or more than or equal to 0.3 situation under be altered to the scan mode that obtains high brightness
By carrying out such scan mode change control, pay attention to the demonstration of exploring degree under the situation that just area shows in high brightness shows in small size portion and large tracts of land portion, just can provide suitable display device.
In addition, as from the hatched example areas of Fig. 8 as can be known, carrying out with threshold value 0.05 and 0.3 under the situation that scan mode switches, it is poor in the front and back of this threshold value the brightness ladder to take place respectively.In order to improve these brightness ladder differences as described in the 1st embodiment, brightness is estimated test section 103 and is outputed to brilliance control portion 104 with the scan mode switching signal and with signal that the brightness evaluation of estimate that calculates has a correlativity, and before and after switching in brilliance control portion 104 to carrying out variable control so that luminance difference is inhibited from the brightness data suitable picture signal handling part 102 with the electronics line emission measure required value data of each pixel display surface board 107.
This variable control realizes that reducing characteristic with the represented brightness according to display area of the curve shown in the solid line of Fig. 8 carries out like this as an example.
As described above, according to this 5th embodiment, calculate summation with the corresponding brightness of a plurality of pixels based on input signal, and according to the corresponding brightness evaluation of estimate of this result of calculation, the condition of scanning in the sweep circuit is changed so that each unit interval changed in the total time that n bar scan wiring adds the time of selecting signal on separately, just can carry out preferable image display thus.
(the 6th embodiment)
In the described in the above embodiment, having represented to constitute can be based on changing the example of the condition of scanning with the corresponding value of the lightness of image.
Below with the embodiment of explanation, constitute based on the auxiliary signal that is associated with image that desire shows and change the condition of scanning.
For example in digital broadcasting, send the information of representing programme attribute with the multiplexed back of the picture signal that is used for program is regenerated.The packets of information of representing this attribute contains the type of program, the information such as impresario of program.In this 6th embodiment, utilize this information to come the gated sweep condition.The formation of the image display device of this 6th embodiment shown in Figure 10.
Image display device shown in Figure 10 constitutes television equipment, has the tuner 1001 of the TV signal that reception broadcasts; Take out the demultiplexer 1002 of picture signal and attribute information from receive TV signal by tuner; And the attribute information handling part 1003 that attribute information is handled.The EPG handling part 1004 that also has the processing that is used to show electric program guide in addition.Can use by demultiplexer 1002 as the information that is used to show electric program guide and to have carried out the information of separating.Can also use in addition by interface portion 1005 via the obtained information in the Internet.
If other constitutive requirements of present embodiment are removed picture signal handling part 102 and are carried out carrying out the setting this point of the condition of scanning and brilliance control section 104 for the processing this point that shows electric program guide, scan mode determination section 108 based on the signal from attribute information handling part 1003 or EPG handling part 1004 based on the signal from EPG handling part 1004 to carry out the brilliance control this point based on the signal from attribute information handling part 1003 or EPG handling part 1004 then identical with the 1st embodiment.
In the present embodiment, when the program that detects the desire demonstration in the attribute information handling part is film, then the condition of scanning is set can carry out comparing with the situation that shows news or sports cast the demonstration of exploring Du Genggao.That is, then adopt the condition of scanning shown in Figure 4, then adopt the condition of scanning shown in Figure 3 if as film, want the program of paying attention to the exploring degree if as news or sports cast, seek out the program of bright picture.
Just can carry out thus showing accordingly with the attribute of program.
In addition, be not limited to use the formation of in television broadcasting signal, carrying out the auxiliary signal of sending after multiplexed as the information of expression programme attribute.For example can also be based on via the obtained electric program guide information in the Internet, obtaining the image that desire shows from electric program guide information in EPG handling part 1004 is the situation that constitutes the image of film, sets to carry out the condition of scanning.
In addition, though in this 6th embodiment, constitute and be conceived to the program type as programme attribute and come the gated sweep condition, but it is to pay attention to the information of the program of lightness or expression is an information of paying attention to the program of exploring degree that the sender that can also constitute program for example provides expression by each program, and comes the setting operation condition according to this information.
In addition,, set frame by frame and need not be that unit sets, so can also be unit with the scene in the case, be that unit sets the condition of scanning with the frame with the program because auxiliary signal can also be by scene.
In addition, all right following formation, promptly, the image that desire is shown is that rest image or live image are differentiated, under the situation of rest image, select the condition of scanning shown in Figure 3, and select the condition of scanning shown in Figure 4 in order to pay attention to maximum lightness in that the situation of live image is next in order to pay attention to the exploring degree.
(the 7th embodiment)
In the described embodiment, represented to become the form of the sweep trace of luminous object in the above with the sweep trace that becomes the corresponding formation of the scan wiring that writes sweep object.The invention relevant with the application is not limited to this form.
For example the display panels of driven with active matrix can be applied to the present invention.Under the situation of the display device of common driven with active matrix, each scan wiring is written into selection, to element (pixel) write signal that is connected on the selected scan wiring, then carry out luminous (from seeing through of the light of bias light) and implemented up to writing.In the preferred example of the liquid crystal panel that the present invention is adapted to driven with active matrix, be not that background light is shone comprehensively, but dispose a plurality of linear light sources, and it is luminous that each light source is carried out in turn.In the case, be used to make the circuit of the luminous in turn selection of each light source just to become the sweep circuit of the present application.By carrying out the line that luminous light source shines is exactly the sweep trace that becomes luminous object, thereby, carry out luminous light source and selected in turn by switching in turn with regard to making the sweep trace that becomes luminous object.
In this constitutes, as described in each above-mentioned embodiment, change the quantity that makes its luminous light source simultaneously by information and just can the number of scanning lines that become luminous object be changed based on value of the lightness of picture having been carried out estimate or expression programme attribute.
The present application can also be applicable to the organic EL panel of driven with active matrix in addition.
Under the situation of the organic EL panel of driven with active matrix, the liquid crystal panel that writes scanning and driven with active matrix similarly carries out.Different with display panels, because organic EL panel is the display of emissive type, distinguishes and be provided with rather than the control of bias light so be used in the luminous scan wiring of enabling and the scan wiring that writes usefulness.Add the sweep circuit that the circuit of selecting signal just becomes the present application to being used for the luminous scan wiring of enabling.To permit luminous signal (selection signal) which is added to simultaneously by control and be used for the luminous scan wiring of enabling, and just can control selecteed sweep trace simultaneously.
More than, be illustrated particularly with regard to all embodiments of the present invention, but the present invention is not limited to above-mentioned embodiment, also can carry out various distortion based on technical thought of the present invention.For example, cited in the above-described embodiment numerical value is example only, also can use the numerical value different with it as required.
Claims (14)
1. image display device has:
N bar sweep trace, wherein n is the integer more than or equal to 3;
Sweep circuit is to exporting the selection signal that is used for a part of sweep trace among the said n bar sweep trace is chosen as in turn the sweep trace that becomes luminous object during each selection of shifting in turn;
A plurality of display elements are used to form a plurality of pixels that constitute above-mentioned a plurality of sweep traces;
Estimate circuit, output corresponding to the value of the lightness of the image that pixel constituted that forms respectively by above-mentioned a plurality of display elements, be evaluation of estimate; And
Control circuit changes the condition of scanning in the above-mentioned sweep circuit according to above-mentioned evaluation of estimate so that said n bar sweep trace respectively on unit interval of selecteed time and with the rate of change of this unit interval.
2. according to the described image display device of claim 1, it is characterized in that:
Above-mentioned evaluation circuit is based on input signal to this evaluation circuit and calculates the circuit of the value of expression and the mean value of the corresponding brightness of above-mentioned a plurality of pixels as above-mentioned evaluation of estimate.
3. according to the described image display device of claim 2, it is characterized in that:
Above-mentioned evaluation circuit is calculated mean value to the nitometer that has carried out weighting when the value of the mean value that calculates expression and the corresponding brightness of above-mentioned a plurality of pixels.
4. according to any described image display device of claim 1 to 3, it is characterized in that:
Above-mentioned evaluation circuit calculates for the whole pixels that constitute picture or the mean value of its one part of pixel when the value of the mean value that calculates expression and the corresponding brightness of above-mentioned a plurality of pixels.
5. according to the described image display device of claim 1, it is characterized in that:
Above-mentioned evaluation circuit calculates the value that obtains as the result who has shown image, promptly corresponding to by the value of the lightness of the image that above-mentioned a plurality of pixel constituted circuit as above-mentioned evaluation of estimate.
6. according to any described image display device of claim 1 to 3, it is characterized in that:
Above-mentioned control circuit, have detect above-mentioned evaluation of estimate than the also big situation of setting under, change the above-mentioned condition of scanning so that above-mentioned and become big function with respect to the ratio of above-mentioned unit interval.
7. according to any described image display device of claim 1 to 3, it is characterized in that:
Above-mentioned control circuit has and is detecting under the above-mentioned evaluation of estimate situation also littler than setting, changes the above-mentioned condition of scanning so that above-mentioned and become big function with respect to the ratio of above-mentioned unit interval.
8. according to any described image display device of claim 1 to 3, it is characterized in that:
Above-mentioned control circuit, have according to this evaluation of estimate belong to which scope among a plurality of scopes of being divided by this a plurality of setting changes the above-mentioned condition of scanning so that above-mentioned and with the function of the rate of change of above-mentioned unit interval.
9. image display device has:
N bar sweep trace, wherein n is the integer more than or equal to 3;
Sweep circuit is to exporting the selection signal that is used for a part of sweep trace among the said n bar sweep trace is chosen as in turn the sweep trace that becomes luminous object during each selection of shifting in turn;
A plurality of display elements are used to form a plurality of pixels that constitute above-mentioned a plurality of sweep traces; And
Control circuit changes the condition of scanning in the above-mentioned sweep circuit according to the auxiliary signal that is associated with the picture signal of being imported so that said n bar sweep trace respectively on unit interval of selecteed time and with the rate of change of this unit interval.
10. according to the described image display device of claim 9, it is characterized in that:
Above-mentioned control circuit, be set as follows the condition of scanning, be that above-mentioned auxiliary signal is that the expression image that should show is that situation and the above-mentioned auxiliary signal of the specified signal of rest image is that image that expression should show is that the situation of the specified signal of live image is compared, above-mentioned and diminish with respect to the ratio of above-mentioned unit interval.
11., it is characterized in that according to the described image display device of claim 9:
Above-mentioned control circuit, be set as follows the condition of scanning, be above-mentioned auxiliary signal to be the expression image that should show compare for the situation of the specified signal of the image that constitutes I sports program for the situation of the specified signal of the image that constitutes film and above-mentioned auxiliary signal are the expression images that should show, above-mentioned and diminish with respect to the ratio of above-mentioned unit interval.
12., it is characterized in that according to claim 1 or 9 described image display devices:
Above-mentioned control circuit, a certain at least side in the quantity of the sweep trace that repeats to select in during the quantity of the sweep trace of selecting simultaneously by change and two the continuous selections, control so that above-mentioned and with the rate of change of above-mentioned unit interval.
13., it is characterized in that according to claim 1 or 9 described image display devices:
Also possess intednsity circuit,
Wherein, above-mentioned intednsity circuit moves the luminance difference that takes place when relaxing the condition of scanning in the above-mentioned sweep circuit of change.
14., it is characterized in that according to claim 1 or 9 described image display devices:
Have a plurality of modulation distributions; And
Constitute the n bar scan wiring of said n bar sweep trace,
Wherein, above-mentioned a plurality of display elements are connected respectively to above-mentioned scan wiring and above-mentioned modulation distribution, and are driven by above-mentioned selection signal that is added on above-mentioned scan wiring outward and the modulation signal that is added on above-mentioned modulation distribution outward.
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| JP2004055400 | 2004-02-27 | ||
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100583965C (en) * | 2007-06-01 | 2010-01-20 | 海尔集团公司 | Brightness control method and control system for on and off of TV set |
| CN101296305B (en) * | 2007-04-23 | 2010-11-17 | 索尼株式会社 | Solid-state imaging device, signal processing method for the same, and imaging apparatus |
| CN105390110A (en) * | 2009-12-18 | 2016-03-09 | 株式会社半导体能源研究所 | Display device and method for driving the same |
| CN111091910A (en) * | 2019-12-17 | 2020-05-01 | 中国科学院自动化研究所 | Intelligent evaluation system based on drawing clock test |
| CN112106131A (en) * | 2018-05-15 | 2020-12-18 | 堺显示器制品株式会社 | Correction device and correction method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4802350B2 (en) * | 1998-03-12 | 2011-10-26 | ソニー株式会社 | Display device |
| US6020868A (en) * | 1997-01-09 | 2000-02-01 | Rainbow Displays, Inc. | Color-matching data architectures for tiled, flat-panel displays |
| US6822628B2 (en) * | 2001-06-28 | 2004-11-23 | Candescent Intellectual Property Services, Inc. | Methods and systems for compensating row-to-row brightness variations of a field emission display |
| JP3658362B2 (en) * | 2001-11-08 | 2005-06-08 | キヤノン株式会社 | Video display device and control method thereof |
-
2005
- 2005-02-24 CN CNB2005100509510A patent/CN100452135C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101296305B (en) * | 2007-04-23 | 2010-11-17 | 索尼株式会社 | Solid-state imaging device, signal processing method for the same, and imaging apparatus |
| CN100583965C (en) * | 2007-06-01 | 2010-01-20 | 海尔集团公司 | Brightness control method and control system for on and off of TV set |
| CN105390110A (en) * | 2009-12-18 | 2016-03-09 | 株式会社半导体能源研究所 | Display device and method for driving the same |
| CN105390110B (en) * | 2009-12-18 | 2019-04-30 | 株式会社半导体能源研究所 | Show equipment and its driving method |
| US11170726B2 (en) | 2009-12-18 | 2021-11-09 | Semiconductor Energy Laboratory Co., Ltd. | Method for driving liquid crystal display device |
| CN112106131A (en) * | 2018-05-15 | 2020-12-18 | 堺显示器制品株式会社 | Correction device and correction method |
| CN111091910A (en) * | 2019-12-17 | 2020-05-01 | 中国科学院自动化研究所 | Intelligent evaluation system based on drawing clock test |
| CN111091910B (en) * | 2019-12-17 | 2023-11-03 | 中国科学院自动化研究所 | Intelligent evaluation system based on painting clock test |
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