CN101231829A - Multi-chart frame polarity inversion overexciting drive method of display - Google Patents
Multi-chart frame polarity inversion overexciting drive method of display Download PDFInfo
- Publication number
- CN101231829A CN101231829A CNA2007100075101A CN200710007510A CN101231829A CN 101231829 A CN101231829 A CN 101231829A CN A2007100075101 A CNA2007100075101 A CN A2007100075101A CN 200710007510 A CN200710007510 A CN 200710007510A CN 101231829 A CN101231829 A CN 101231829A
- Authority
- CN
- China
- Prior art keywords
- voltage
- picture frame
- display
- during
- polarity reversal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Abstract
The invention relates to a multi-image frame polarity reversal over-drive method for a display. According to the method, the frame rate input is improved in the image frame period of the panel of the display so that the image frame period is divided into at least a first voltage control period and a second voltage control period. The brightness of the first voltage control period is controlled by a first gray scale code, and the first gray scale code corresponds to a first voltage value; a second voltage control period is subsequent to the first voltage control period, and the brightness of the second voltage control period is controlled by a second gray scale code. The second gray scale code corresponds to a second voltage value used for driving the panel of the display. The second voltage value is in the same polarity as the first voltage value to quickly bring the driving voltage close to the voltage required for the brightness of the panel, thus reducing the loss of the gray scale of the panel and eliminating the deficiency of brightness.
Description
Technical field
The present invention relates to a kind of multi-picture frame polarity reversal overexcitation drive method of display, relate in particular to a kind of multi-picture frame polarity reversal overexcitation drive method that picture frame speed input is promoted and make the display of the voltage same polarity during each Control of Voltage in the same picture frame.
Background technology
Because the progress and the renewal of science and technology, make display constantly advance towards little, the lightweight target of volume, especially LCD has advantages such as low power consumption, weight is frivolous, radiationless and do not glimmer, can be applicable to Digital Television, mobile computer or computer screen, thereby become the main flow of display industry gradually.Yet be subject to the characteristic of liquid crystal molecule, as coefficient of viscosity, elasticity coefficient and dielectric coefficient or the like, so display exists its restriction and shortcoming.
Usually when the picture display speed surpasses 25 picture frames of per second (frame), human eye can be considered as the picture of being seen continuous action, and at present the display speed of image is everlasting 60 of per seconds more than the picture frame, to satisfy the demand of action movie, recreation or high-quality DVD film.It is voltage to be bestowed liquid crystal cell (Cell) make the liquid crystal molecule rotation that the brightness of liquid crystal panel presents, the ratio that sees through of light with the control backlight module, because with driven liquid crystal molecule reaction needed response time (Response time), be " too drastic driving " (Overdrive, OD) technology with improving driving voltage and need not changing display panel structure with one of the technology that shortens the LCD response time.
With Fig. 6 is example, if display pannel is target sign indicating number (Targetcode) in the brightness that picture frame N and picture frame N+1 desire to present, its corresponding change in voltage is shown in the curve of label 61, by too drastic Driving technique, the too drastic driving sign indicating number of input (OD code) replaces the target sign indicating number when picture frame N, then with the corresponding change in voltage of too drastic driving sign indicating number shown in label 62, reach panel brightness to be presented by this fast; After entering picture frame N+1, immediately with the pairing driven liquid crystal panel of target sign indicating number, to reach required brightness.Wherein, when the voltage of show electrode is higher than benchmark (Common) the voltage Vcom of liquid crystal panel, just be referred to as positive polarity, otherwise be called negative polarity, if adopt Common voltage AC driving, with this situation that produces the positive-negative polarity alternating voltage, be referred to as reversal of poles (polarity inversion).
The conventional polar inverting method has four kinds, be respectively the frame inversion (face counter-rotating) shown in Fig. 7 A, when picture frame N converts picture frame N+1 to, electric polarity will become negative polarity from positive polarity as shown in the figure in whole the zone, and the change of its polarity is to be unit with the face; Column inversion shown in Fig. 7 B (row counter-rotating) the then change of its polarity is with behavior unit; Row inversion shown in Fig. 7 C (row counter-rotating), the change of its polarity is with the unit of classifying as; And the Dot inversion shown in Fig. 7 D (some counter-rotating), the change of its polarity is to be unit with the point.
The dealer of field of liquid crystal is in order to satisfy the more demand of high-order fast image processing, then release the display pannel of high picture frame speed (High frame rate), that is the framework of change liquid crystal panel is accelerated the picture frame renewal speed, even double, the frame rate lifting that for example originally is 60Hz is 70Hz, 80Hz, or even the framerate of 120Hz, its voltage and gray code method (code) change figure as shown in Figure 8, wherein, originally the change in voltage of picture frame speed 60Hz should fall within label 81, in 81 ' the dotted line scope, after carrying out driven with the 120Hz that doubles, capacitor charge and discharge and the time of keeping will reduce half, that is 82 be divided into during the picture frame N ' during the N and picture frame during first picture frame originally, during picture frame during N, driven by OD code (too drastic driving gray code method) makes the change in voltage curve shown in label 83, voltage is positive polarity, when entering during the picture frame N ', change by Target code and drive liquid crystal molecule, polarity of voltage is reversed to negative polarity simultaneously, and the change in voltage curve is shown in label 84.
Yet, owing to improving, frame rate shortens the response time, cause panel duration of charging deficiency also, suppose under the picture frame speed 60Hz, 82 with OD code driving panel during first picture frame, its change in voltage curve is shown in label 85, though and the climbing speed of the change in voltage curve of label 83 is fast than the change in voltage curve of label 85, but the undertension that discharges and recharges, can't arrive and satisfy the required voltage of brightness, also there is this problem in N ' during the picture frame, change in voltage curve 84 can't arrive the change in voltage curve 81 ' of Target code correspondence, cause GTG loss (gray level loss), it is poor that the polarity that can't reach the problem that presents brightness and brightness disproportionation, especially each adjacent frames of expection mutually exists higher voltage on the contrary, causes the voltage of each picture frame all can't reach the voltage of expection.
Moreover, when carrying out High frame rate, feed-through (feed-in penetrates) effect that the capacitor charge and discharge effect produces, to make the change in voltage curve produce the curvilinear motion that the voltage as the spike shape of label 831 and label 832 falls downwards, simultaneously also cause the Vcom value low than data center's value, and under the situation of the permanent off-set of AC drive voltage (skew), will the glimmer phenomenon of (Flicking) or ghost (Image sticking) of picture, and the serious words of the situation of voltage charging deficiency, from whole front panel, panel has the picture meeting deepening of half, or differs along the brightness light and shade of gate line both sides.
In addition, to maintain magnitude of voltage by capacitor after the LCD charging, to keep panel luminance up to the renewal of picture next time, this kind video picture mode is referred to as the formula of retaining (Hold type), but if the liquid crystal molecule reaction velocity is fast inadequately, just can produce the image overlapping of image with back one picture of last picture on the display, and cause image fog, it is ghost phenomena, for head it off, can capture the advantage of pulsed (Impulse type) developing method of CRT monitor, use the technology of analog pulse (Pseudo impulse type) to present image data on LCD, main mode is to insert black data or black picture in the continuous image picture, or in backlight, insert black picture signal, make the backlight flicker, reach the effect of simulation CRT video picture, in order to eliminate ghost phenomena.
Yet, see also shown in Figure 9, when high picture frame speed technology is applied to the video picture mode of emulation pulsed, suppose that its gray code method and change in voltage curve are respectively shown in label 91 and 92, wherein gray code method code 0 will produce complete black, the black picture of no brightness, but because of the duration of charging not enough, voltage under the High frame rate state is obviously not enough, its change in voltage curve 91 can't arrive the change in voltage curve under the general picture frame speed shown in the label 93, also just cause the problem of loss of GTG value and brightness disproportionation, make display produce the phenomenon of flicker (Flicking) or ghost (Image sticking).
Moreover, the display pannel lifting that traditional 60Hz is shown speed needs hardware configuration equipment is changed for the demonstration speed more than the 60Hz, double gate drive or data driver for example are set, be Challenging the Limits not only to data line (data-line) or opening resistor (turn-on resister), and manufacturing or spent material, manpower, the cost of time of design process improve all relatively, even up to more than one times.
Summary of the invention
Fundamental purpose of the present invention provides a kind of multi-picture frame polarity reversal overexcitation drive method of display, and it keeps the existing display architectures of use, need not carry out computer hardware change or lifting, can improve the brightness performance, reduce the loss of GTG value, reduce production costs by this, promote competitive power.
Another object of the present invention provides a kind of multi-picture frame polarity reversal overexcitation drive method of display, its picture frame speed input (frame-rate input) during with picture frame improves and divides into during at least two Control of Voltage, and make voltage same polarity during each Control of Voltage during the same picture frame, shorten voltage difference, reach presenting of brightness fast.
Another purpose of the present invention provides a kind of multi-picture frame polarity reversal overexcitation drive method of display, and it can be applicable to the display of analog pulse formula, reduces the problem of GTG loss and luminance shortage.
In order to achieve the above object, the multi-picture frame polarity reversal overexcitation drive method of display of the present invention comprises: during the process that makes this display pannel receive a picture frame is a picture frame, picture frame speed during this picture frame input (frame-rate input) is improved, be divided into during at least two Control of Voltage during making this picture frame, that is comprise during first Control of Voltage and during second Control of Voltage, during first Control of Voltage, be by the presenting of one first gray code method (code) control brightness, and one in order to first magnitude of voltage of driving display panel corresponding to this first gray code method; Then, after being next to during first Control of Voltage during this second Control of Voltage, during second Control of Voltage, it is presenting by the control brightness of one second gray code method, and one in order to second magnitude of voltage of driving display panel corresponding to this second gray code method, this second magnitude of voltage and the first magnitude of voltage same polarity make the present invention need not change the conventional hardware framework by this, and do not cause the burden (duty-free) of power.
The present invention also comprises from the multi-picture frame polarity reversal overexcitation drive method of display: a kind of multi-picture frame polarity reversal overexcitation drive method of display is characterized in that this method comprises:
During the process that makes this display pannel receive a picture frame is a picture frame, the input of the picture frame speed during this picture frame is improved, be divided into during at least two Control of Voltage during making this picture frame;
During first Control of Voltage, be that this first gray code method will make the too drastic driving of display pannel by the presenting of one first gray code method control brightness, and one in order to first magnitude of voltage of driving display panel corresponding to this first gray code method; And
After being next to during first Control of Voltage during second Control of Voltage, during second Control of Voltage, be by the presenting of one second gray code method control brightness, and one in order to second magnitude of voltage of driving display panel corresponding to this second gray code method, this second magnitude of voltage and the first magnitude of voltage same polarity.
The present invention also comprises from the multi-picture frame polarity reversal overexcitation drive method of display: a kind of multi-picture frame polarity reversal overexcitation drive method of display is characterized in that this method comprises:
During the process that makes this display pannel receive a picture frame is a picture frame, the input of the picture frame speed during this picture frame is improved, be divided into during at least two Control of Voltage during making this picture frame;
During first Control of Voltage, be by the presenting of one first gray code method control brightness, and one in order to first magnitude of voltage of driving display panel corresponding to this first gray code method; And
After being next to during first Control of Voltage during second Control of Voltage, during second Control of Voltage, it is presenting by the control brightness of one second gray code method, and one in order to second magnitude of voltage of driving display panel corresponding to this second gray code method, especially this second magnitude of voltage is for making the voltage of display pannel blackening, this second magnitude of voltage and the first magnitude of voltage same polarity.
Description of drawings
Fig. 1 is the synoptic diagram of the first embodiment of the present invention;
Fig. 2 is the synoptic diagram of the second embodiment of the present invention;
Fig. 3 is the synoptic diagram of the third embodiment of the present invention;
Fig. 4 is the synoptic diagram that the present invention carries out the charging voltage compensation;
Fig. 5 is that the present invention carries out the synoptic diagram that the rectangle compensating basin is distinguished in panel;
Fig. 6 is the synoptic diagram of the too drastic driving of known display pannel;
Fig. 7 A is the synoptic diagram of the face counter-rotating of known polar inversion method;
Fig. 7 B is the synoptic diagram of the row counter-rotating of known polar inversion method;
Fig. 7 C is the synoptic diagram of the row counter-rotating of known polar inversion method;
Fig. 7 D is the synoptic diagram of the some counter-rotating of known polar inversion method;
Fig. 8 is the voltage of known high picture frame speed (High frame rate) display pannel and the synoptic diagram that gray code method changes;
Fig. 9 is that high picture frame speed (High frame rate) technology is applied to the synoptic diagram of analog pulse formula imaging technique.
The drawing reference numeral explanation:
During the present invention: 11-first picture frame; 12,12 '-change in voltage scope; 13,14-change in voltage curve; During 15-second picture frame; 21,23-OD code curve during 21 '-change in voltage scope 22-, first picture frame; During 27-second picture frame; 24,25,26,31,41,42-change in voltage curve; During N, N+1, N+2, N+3-first Control of Voltage; During N ', N+1 ', N+2 ', N+3 '-second Control of Voltage; 32,33,34, during the 35-picture frame; The 51-panel; The 52-compensating basin.
Prior art: N, N+1-picture frame; 61 62-change in voltage curves; The Vcom-reference voltage; 81,81 '-change in voltage scope line; During 82-first picture frame; 83,84,85,92,93-change in voltage curve; The spike of 831-change in voltage curve; The variation of 832-voltage curve; 91-gray code method change curve.
Embodiment
For the technology contents, the goal of the invention that make the present invention use and the effect reached thereof have more complete and clearly disclose, now under describe it in detail, and accompanying drawing shown in seeing also and figure number:
The multi-picture frame polarity reversal overexcitation drive method of display of the present invention comprises: during the process that makes this display pannel receive a picture frame is a picture frame, picture frame speed during this picture frame input (frame-rate input) is improved, be divided into during at least two Control of Voltage during making this picture frame, that is comprise during first Control of Voltage and during second Control of Voltage, during first Control of Voltage, be by the presenting of one first gray code method (code) control brightness, and one in order to first magnitude of voltage of driving display panel corresponding to this first gray code method; Then, after being next to during first Control of Voltage during this second Control of Voltage, during second Control of Voltage, it is presenting by the control brightness of one second gray code method, and one in order to second magnitude of voltage of driving display panel corresponding to this second gray code method, this second magnitude of voltage and the first magnitude of voltage same polarity make the present invention need not change the conventional hardware framework by this, and do not cause the burden (duty-free) of power.
At first it should be noted that, method used in the present invention is to carry out under the framework of traditional monitor panel, need not change hardware structure, wherein, suppose that display pannel is made up of a plurality of display unit, with LCD screen, each display unit also is called picture element (pixel), each display unit presents different brightness variations by the change of magnitude of voltage, and again, the size of magnitude of voltage is by gray code method (code) decision that drives display unit.
Then illustrate to illustrate, see also shown in Figure 1, it is first embodiment of multi-picture frame polarity reversal overexcitation drive method of the present invention, suppose that this display unit is to receive four picture frames, the brightness that each picture frame is desired to present represents with target sign indicating number (Target code), during the process that makes each be received picture frame by the display unit of this display pannel is a picture frame.
In the present embodiment, be 11 with label during first picture frame and improve the input of its picture frame speed (frame-rate), for example the input of picture frame speed is doubled, the picture frame speed of script 60Hz is promoted to 120Hz picture frame speed, 11 are split into N during two two Control of Voltage during this moment first picture frame originally, N ', N during first Control of Voltage, make one to be higher than the too drastic driving sign indicating number (OD code) of target sign indicating number (Target code) as first gray code method, make display unit accept first magnitude of voltage of OD code correspondence for too drastic driving, as can be seen from Figure, the pairing change in voltage scope of this target sign indicating number should be between the straight line between label 12 and the label 12 ', and the change in voltage that too drastic driving sign indicating number is presented under the picture frame speed of script 60Hz is the dotted line as label 13, in the input picture frame speed that doubles to the 120Hz effect, the actual change in voltage that produces will be shown in the curve of label 14, because the duration of charging deficiency, then the change in voltage of label 14 can't arrive the shown change in voltage curve of label 13.
After N during first Control of Voltage finishes, N ' during 11 second Control of Voltage during this first picture frame immediately, import this display unit with one with second magnitude of voltage of this first magnitude of voltage same polarity, in the present embodiment, because the voltage that OD code has made display unit receive is higher than the pairing voltage of Target code, so enter during first picture frame during 11 second Control of Voltage behind the N ', with 11 target sign indicating number (Target code) during first picture frame as second gray code method, and with the voltage of pairing second magnitude of voltage of second gray code method as this input, especially, this second magnitude of voltage by Polarity Control (polarity control) with first Control of Voltage during the first magnitude of voltage same polarity of N ', because of first magnitude of voltage of OD code correspondence voltage near Target code correspondence, so the virtual voltage curvilinear motion (as shown in the reference numeral 14) of N ' can promptly arrive the voltage curve (label 12) of Target code correspondence during second Control of Voltage, and then reach the brightness that the expection of this display pannel presents, importantly, do not increase the burden of power.
When then entering during next picture frame (that is during second picture frame 15), display unit receives the voltage corresponding with Target code, be subjected to picture frame speed and increase event, in during second picture frame before 15 during one N+1 may produce the phenomenon of undertension, but also to enter the extrusion of picture frame N+1 little because of the picture frame N ' from positive polarity, so the change in voltage curve is also than the change in voltage curve 12 ' near Target code correspondence, in case N+1 ' can make not afc voltage be supplied during entering during second picture frame after 15 one, and then reach and present the required voltage of brightness, reduce the GTG loss and solve the problem of luminance shortage.
Then see also shown in Figure 2, it is second embodiment of multi-picture frame polarity reversal overexcitation drive method of the present invention, suppose that this display unit is to receive four picture frames, the brightness that each picture frame is desired to present represents that with target sign indicating number (Target code) it desires to reach the change in voltage scope with label 21, and 21 ' straight line is represented, and in during first picture frame 22 under general picture frame speed, 60Hz for example, the OD code of input represents that with the dotted line of label 23 its corresponding voltage then is the dotted line of label 24.
In the present embodiment, picture frame speed (frame-rate) raising of 22 inputs during first picture frame is doubled, for example be promoted to 120Hz from 60Hz, originally 22 are split into during first Control of Voltage N ' during the N and second Control of Voltage during first picture frame, N during first Control of Voltage, its with too drastic driving sign indicating number (OD code) as first gray code method, and the change in voltage that first magnitude of voltage of this first gray code method correspondence is presented is as shown in the reference numeral 25, the result identical with first embodiment, because of the duration of charging deficiency, so voltage can't arrive the shown change in voltage curve of label 24.
But after N during first Control of Voltage finishes, N ' imports this display unit with one with second magnitude of voltage of this first magnitude of voltage same polarity during second Control of Voltage subsequently, in the present embodiment, because first magnitude of voltage of OD code correspondence has made display unit near change in voltage (curve of label 24) that 60Hz desired to reach, so with too drastic drivings yard (OD code) pairing voltage of 22 during first picture frame as this second magnitude of voltage, especially this second magnitude of voltage by Polarity Control (polarity control) with first Control of Voltage during the first magnitude of voltage same polarity of N, at this moment, the virtual voltage curvilinear motion (as shown in the reference numeral 26) of N ' can promptly arrive the voltage curve (as shown in the reference numeral 24) of OD code correspondence during second Control of Voltage, and then reach the brightness that this display pannel expection presents.
When then entering during next picture frame (that is during second picture frame of label 27), display unit receives the voltage corresponding with Target code, desirable change in voltage curve should be 21 as label, shown in 21 ' the dotted line, be subjected to picture frame speed and increase event, in during second picture frame 27 last during N+1 may produce the phenomenon of undertension, but, in case enter during second picture frame 27 back one during behind the N+1 ', not enough voltage will be supplied, and then reach and present the required voltage of brightness, reduce the GTG loss and solve the problem of luminance shortage.
The present invention also can be applicable to the analog pulse technology, see also shown in Figure 3, it is the 3rd embodiment of multi-picture frame polarity reversal overexcitation drive method of the present invention, N during first Control of Voltage, N+1, N+2, N+3, by one first gray code method (code) control brightness presenting and by one first magnitude of voltage corresponding to this first gray code method, N ' during second Control of Voltage, N+1 ', N+2 ', N+3 ' is next to N during first Control of Voltage, N+1, N+2, after the N+3, N ' during second Control of Voltage, N+1 ', N+2 ', N+3 ' bestows presenting of one second gray code method control brightness, similarly, second magnitude of voltage is corresponding to this second gray code method, this second magnitude of voltage and the first magnitude of voltage same polarity.
Be with the first two embodiment difference: after N during first Control of Voltage finishes, in N ' during second Control of Voltage subsequently with one with this first Control of Voltage during second magnitude of voltage of the first magnitude of voltage same polarity import this display unit, in the present embodiment, this second magnitude of voltage is for making the voltage of display pannel blackening, though the gray code method code 0 of display will produce complete black, the black picture of no brightness, and during practical application of the present invention, make the gray code method of LCD below a numerical value, promptly can be considered black picture, as code 5～10, still represent black picture in the following description or make the voltage of picture deepening with code 0, especially this second magnitude of voltage by Polarity Control (polarity control) with first Control of Voltage during the second magnitude of voltage same polarity of N, its voltage curve changes as shown in the reference numeral 31.
In present embodiment, it is during each picture frame 32,33, N during 34,35 first Control of Voltage, N+1, N+2, N+3 bestow default gray code method (Pre code) or target sign indicating number (Target code) with as first gray code method, and N ' during second Control of Voltage and then, N+1 ', N+2 ', N+3 ' bestow code 0, in addition, N during this first Control of Voltage, N+1, N+2, N+3 also can bestow an OD code with too drastic driving effect with as first gray code method as the first two embodiment.
Shorten during no matter high picture frame speed technology or method of the present invention all are to make picture frame, and then may be because of response time deficiency or the not enough problem that produces luminance shortage of duration of charging, one of raising brightness method is cel-gap (Cell-gap) increase with display pannel, structure for fear of the change liquid crystal cell, and in response to cel-gap that frame causes differs and the problem of brightness disproportionation because of adding in the panel manufacture process, the present invention proposes another kind of method: charging voltage compensation (charging voltage compensation) is so that the brightness uniformity of panel, the compensation of this charging voltage is that the difference that the brightness according to display pannel presents is adjusted, at first, the mode of charging voltage compensation is that display pannel is divided into a plurality of compensating basins, each compensating basin is provided with at least one compensation GTG value, and each compensates the GTG value is to be got by the brightness of actual measurement display pannel.
For example, because of adding the frame pressurized, the cel-gap behind the pressurized diminishes and then reduces brightness around the display pannel, and then the compensation GTG value of the compensating basin around the panel will be enhanced; On the contrary, display pannel central authorities then are subjected to panel and add frame all around and will present projection a little, so cel-gap becomes big and then improves brightness, then the compensation GTG value of the compensating basin of panel central authorities will suitably reduce, hence one can see that, and no matter the size of the compensation GTG value of each compensating basin from left to right or from top to bottom arranges presenting graded.
The compensation GTG value of above-mentioned each compensating basin can be stored in comparison list (look-up table) for access, in the time of during carrying out method of the present invention and entering second Control of Voltage, to from the table of comparisons, access compensate the GTG value according to the difference of each compensating basin, make the driving GTG value during second Control of Voltage increase, constant or reduce, with Fig. 4 is example, it enters during second Control of Voltage during first picture frame behind the N ', second gray code method of N ' during the compensation GTG value of the table of comparisons and second Control of Voltage is combined, then make second magnitude of voltage (change in voltage curve as shown in the reference numeral 41) that N ' presents during second Control of Voltage be higher than the pairing voltage of target sign indicating number (the change in voltage curve shown in the label 42), that is gray code method herein is in conjunction with bigger compensation GTG value, and the brightness of panel is improved.
The compensating basin of charging voltage compensation of the present invention can be rectangle or wire is arranged, if the compensating basin be rectangle region every, as shown in Figure 5, it is that panel 51 is divided into nine large compensation districts 52 generally, in addition, also with the need and further segmentation is a unit with 32 (pixel) X32 (pixel) or 64 (pixel) X64 (pixel) for example, and brightness presents more presses close to raw frames.
If the compensating basin of charging voltage compensation is made as wire and arranges, be meant that then carrying out brightness along gate line surveys and get, can more be compensated the GTG value, make that the luminance compensation of panel is more accurate.
The present invention illustrates as embodiment that with LCD in addition, the present invention also can be applicable to Organic Light Emitting Diode (OLED) display, plasma display panel (PDP) or other suitable display, does not exceed with this embodiment.
As from the foregoing, the present invention has following plurality of advantages:
1. the present invention need not to use or change the hardware structure of original display, and the voltage charging process maybe must be improved, and relatively, also reduces the problem of luminance shortage and GTG loss, particularly, and inactivity burden (duty-free).
2. the mode of bestowing voltage of the present invention's proposition can effectively reduce the excessive problem of conventional polar reversal voltage difference, effectively and fast reaches the brightness that panel is desired to present.
3. the invention provides the mode of display area luminance compensation, make display be improved because of the problem of brightness disproportionation in the manufacture process.
Aforesaid embodiment or accompanying drawing and non-limiting structure sample attitude of the present invention or size have suitable variation or the modification of knowing the knowledgeable usually in any affiliated technical field, all should be considered as not breaking away from the claim category of patent of the present invention.
Claims (35)
1. the multi-picture frame polarity reversal overexcitation drive method of a display is characterized in that, this method comprises:
During the process that makes this display pannel receive a picture frame is a picture frame, the input of the picture frame speed during this picture frame is improved, be divided into during at least two Control of Voltage during making this picture frame;
During first Control of Voltage, be by the presenting of one first gray code method control brightness, and one in order to first magnitude of voltage of driving display panel corresponding to this first gray code method; And
After being next to during first Control of Voltage during second Control of Voltage, during second Control of Voltage, be by the presenting of one second gray code method control brightness, and one in order to second magnitude of voltage of driving display panel corresponding to this second gray code method, this second magnitude of voltage and the first magnitude of voltage same polarity.
2. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 1 is characterized in that, this first gray code method will make the too drastic driving of display pannel.
3. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 2 is characterized in that, this second magnitude of voltage is for reaching the required voltage of target sign indicating number of this picture frame.
4. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 2 is characterized in that, this second magnitude of voltage is for reaching the too drastic required voltage of sign indicating number that drives of this picture frame.
5. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 2 is characterized in that, this second magnitude of voltage is for surpassing the too drastic required voltage of sign indicating number that drives of this picture frame.
6. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 1 or 2 is characterized in that, this second magnitude of voltage is for making the voltage of display pannel blackening.
7. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 1 is characterized in that, its difference that further presents according to brightness in this display pannel is carried out the charging voltage compensation, so that brightness presents evenly.
8. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 7, it is characterized in that, the mode of charging voltage compensation is that display pannel is divided into a plurality of compensating basins, and each compensating basin is provided with at least one compensation gray code method, to increase or to reduce brightness.
9. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 8 is characterized in that, the compensation gray code method of each compensating basin is to arrange with graded.
10. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 8 is characterized in that, the compensation gray code method of each compensating basin is to be stored at least one table of comparisons for access.
11. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 8 is characterized in that, this compensating basin is rectangular.
12. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 8 is characterized in that, this compensating basin is to be wire to arrange.
13. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 7 is characterized in that, the numerical value of this charging voltage compensation is to get according to the actual measurement display pannel.
14. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 1 is characterized in that, this display is to be LCD, organic light emitting diode display or plasma display panel.
15. the multi-picture frame polarity reversal overexcitation drive method of a display is characterized in that, this method comprises:
During the process that makes this display pannel receive a picture frame is a picture frame, the input of the picture frame speed during this picture frame is improved, be divided into during at least two Control of Voltage during making this picture frame;
During first Control of Voltage, be that this first gray code method will make the too drastic driving of display pannel by the presenting of one first gray code method control brightness, and one in order to first magnitude of voltage of driving display panel corresponding to this first gray code method; And
After being next to during first Control of Voltage during second Control of Voltage, during second Control of Voltage, be by the presenting of one second gray code method control brightness, and one in order to second magnitude of voltage of driving display panel corresponding to this second gray code method, this second magnitude of voltage and the first magnitude of voltage same polarity.
16. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 15 is characterized in that, this second magnitude of voltage is for reaching the required voltage of target sign indicating number of this picture frame.
17. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 15 is characterized in that, this second magnitude of voltage is for reaching the too drastic required voltage of sign indicating number that drives of this picture frame.
18. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 15 is characterized in that, this second magnitude of voltage is for surpassing the too drastic required voltage of sign indicating number that drives of this picture frame.
19. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 15 is characterized in that, this second magnitude of voltage is for making the voltage of display pannel blackening.
20. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 15, it is characterized in that, its difference that further presents according to brightness in this display pannel is carried out the charging voltage compensation, so that brightness presents evenly, the mode of charging voltage compensation is that display pannel is divided into a plurality of compensating basins, each compensating basin is provided with at least one compensation gray code method, to increase or to reduce brightness.
21. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 20 is characterized in that, the compensation gray code method of each compensating basin is to arrange with graded.
22. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 20 is characterized in that, the compensation gray code method of each compensating basin be stored at least-table of comparisons is for access.
23. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 20 is characterized in that, this compensating basin is rectangular.
24. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 20 is characterized in that, this compensating basin is to be wire to arrange.
25. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 20 is characterized in that, the numerical value of this charging voltage compensation is to get according to the actual measurement display pannel.
26. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 15 is characterized in that, this display is to be LCD, organic light emitting diode display or plasma display panel.
27. the multi-picture frame polarity reversal overexcitation drive method of a display is characterized in that, this method comprises:
During the process that makes this display pannel receive a picture frame is a picture frame, the input of the picture frame speed during this picture frame is improved, be divided into during at least two Control of Voltage during making this picture frame;
During first Control of Voltage, be by the presenting of one first gray code method control brightness, and one in order to first magnitude of voltage of driving display panel corresponding to this first gray code method; And
After being next to during first Control of Voltage during second Control of Voltage, during second Control of Voltage, it is presenting by the control brightness of one second gray code method, and one in order to second magnitude of voltage of driving display panel corresponding to this second gray code method, especially this second magnitude of voltage is for making the voltage of display pannel blackening, this second magnitude of voltage and the first magnitude of voltage same polarity.
28. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 27 is characterized in that, this first gray code method will make the too drastic driving of display pannel.
29. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 27, it is characterized in that, its difference that further presents according to brightness in this display pannel is carried out the charging voltage compensation, so that brightness presents evenly, the mode of charging voltage compensation is that display pannel is divided into a plurality of compensating basins, and each compensating basin is provided with at least one compensation gray code method to increase or to reduce brightness.
30. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 29 is characterized in that, the compensation gray code method of each compensating basin is to arrange with graded.
31. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 29 is characterized in that, the compensation gray code method of each compensating basin is to be stored at least one table of comparisons for access.
32. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 29 is characterized in that, this compensating basin is rectangular.
33. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 29 is characterized in that, this compensating basin is to be wire to arrange.
34. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 29 is characterized in that, the numerical value of this charging voltage compensation is to get according to the actual measurement display pannel.
35. the multi-picture frame polarity reversal overexcitation drive method of display as claimed in claim 27 is characterized in that, this display is to be LCD, organic light emitting diode display or plasma display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100075101A CN101231829A (en) | 2007-01-26 | 2007-01-26 | Multi-chart frame polarity inversion overexciting drive method of display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100075101A CN101231829A (en) | 2007-01-26 | 2007-01-26 | Multi-chart frame polarity inversion overexciting drive method of display |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101231829A true CN101231829A (en) | 2008-07-30 |
Family
ID=39898248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100075101A Pending CN101231829A (en) | 2007-01-26 | 2007-01-26 | Multi-chart frame polarity inversion overexciting drive method of display |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101231829A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286313B (en) * | 2007-04-11 | 2011-06-15 | 钰瀚科技股份有限公司 | Display multi-picture frame polarity reversal overexcitation drive method |
| CN102637414A (en) * | 2011-02-10 | 2012-08-15 | 联咏科技股份有限公司 | Liquid crystal display device and driving method thereof |
| CN102930811A (en) * | 2011-08-10 | 2013-02-13 | 群康科技(深圳)有限公司 | Operating method and display panel using the same |
| CN105390113A (en) * | 2015-12-15 | 2016-03-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device and data signal compensation method |
| WO2019242118A1 (en) * | 2018-06-22 | 2019-12-26 | 惠科股份有限公司 | Display device and driving method |
-
2007
- 2007-01-26 CN CNA2007100075101A patent/CN101231829A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101286313B (en) * | 2007-04-11 | 2011-06-15 | 钰瀚科技股份有限公司 | Display multi-picture frame polarity reversal overexcitation drive method |
| CN102637414A (en) * | 2011-02-10 | 2012-08-15 | 联咏科技股份有限公司 | Liquid crystal display device and driving method thereof |
| CN102930811A (en) * | 2011-08-10 | 2013-02-13 | 群康科技(深圳)有限公司 | Operating method and display panel using the same |
| CN105390113A (en) * | 2015-12-15 | 2016-03-09 | 深圳市华星光电技术有限公司 | Liquid crystal display device and data signal compensation method |
| WO2019242118A1 (en) * | 2018-06-22 | 2019-12-26 | 惠科股份有限公司 | Display device and driving method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104751757B (en) | Display device capable of driving at low speed | |
| US8344984B2 (en) | Liquid crystal display and method of driving the same | |
| US20080165108A1 (en) | Method for driving liquid crystal display in a multi-frame polarity inversion manner | |
| KR101330459B1 (en) | Liquid Crystal Display | |
| US8605024B2 (en) | Liquid crystal display device | |
| KR101289634B1 (en) | Liquid Crystal Display and Driving Method thereof | |
| US9412313B2 (en) | Display apparatus and method of driving the same | |
| KR102279278B1 (en) | Display Device And Driving Method for the Same | |
| CN105511184A (en) | Liquid crystal display panel and driving method thereof | |
| US20100265270A1 (en) | Driving Device for Quickly Changing the Gray Level of the Liquid Crystal Display and Its Driving Method | |
| CN101286313B (en) | Display multi-picture frame polarity reversal overexcitation drive method | |
| CN109785803B (en) | Display method, display unit and display | |
| US8179356B2 (en) | Method for driving liquid crystal display with inserting gray image | |
| US20120169787A1 (en) | Method and device for driving pixel of display panel | |
| US20070195045A1 (en) | Liquid crystal display device | |
| CN102214450B (en) | Liquid crystal display and driving method thereof | |
| KR101746616B1 (en) | A liquid crystal display apparatus and a method for driving the same | |
| Nose et al. | 35.3: A Black Stripe Driving Scheme for Displaying Motion Pictures on LCDs | |
| CN101231829A (en) | Multi-chart frame polarity inversion overexciting drive method of display | |
| US20100315408A1 (en) | Liquid crystal display and method of driving the same | |
| JP2000250496A (en) | Active matrix type liquid crystal display and driving method therefor | |
| US8890786B2 (en) | Method of driving a display panel and display device | |
| CN113963670A (en) | Display panel driving method, display panel and display device | |
| KR101332062B1 (en) | Liquid Crystal Display Device | |
| US8717264B2 (en) | Displaying method for electrophoretic display and electrophoretic display using the same |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20080730 |