CN101180669A - Cross-talk reduction for active matrix displays - Google Patents
Cross-talk reduction for active matrix displays Download PDFInfo
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- CN101180669A CN101180669A CNA2006800177857A CN200680017785A CN101180669A CN 101180669 A CN101180669 A CN 101180669A CN A2006800177857 A CNA2006800177857 A CN A2006800177857A CN 200680017785 A CN200680017785 A CN 200680017785A CN 101180669 A CN101180669 A CN 101180669A
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- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
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- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
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Abstract
An image drive data system (40) applies cross-talk compensated image drive data (CIDD) to a data line (23) for driving each pixel (21) coupled to the data line (23) to a desired optical state during an image update period inclusive of a cross-talk between the pixels (21) and the data line (23). To reduce the cross-talk, the image drive data system (40) determines cross-talk uncompensated image drive data (IDD) for driving each pixel (21) to its respective desired image exclusive of the cross-talk between the pixels (21) and the data line (23), determines a time averaged pixel data shift based on the cross-talk uncompensated image drive data (IDD) and a cross-talk coupling constant between the pixels (21) and the data line (23), and determines the cross-talk compensated drive data (CIDD) based on the time-averaged pixel data shift.
Description
Technical field
Present invention relates in general to crosstalking between the pixel of Active Matrix Display and data line.The present invention is specifically related to a kind of technology, is used to reduce this crosstalking, with the optimum picture quality of the pixel that helps to carry out Active Matrix Display.
Background technology
Polymer displays (Polymer Vision) is the current rolled display of developing, and it is based on the polymer-electronics active matrix with electrophoretic display effects.Yet, in this Active Matrix Display, in the image update process of Active Matrix Display, all there be a certain amount of crosstalking between pixel and the data line, this has undesirably reduced the picture quality of Active Matrix Display.
For example, Fig. 1 shows four (4) exemplary pixels 21, and it has address-element 22, and address-element 22 operationally is coupled to data line 23 and corresponding selection wire 24.During image drive data system 30 is applied to the image update of data line 23 with image drive data, carry out in each selection course in 24 pairs of pixels of corresponding selection wire 21 by means of pixel 21, pixel 21 is directly coupled to data line 23 by address-element 22, thereby receives and storage is applied to particular segment in the image drive data of data line 23 as pixel data.Opposite, to carry out at every turn in non-selected (non-selection) process in 24 pairs of pixels of corresponding selection wire 21 by pixel 21, pixel 21 is via stray capacitance C
PARCapacitively be coupled to data line 23, so the pixel data of pixel 21 is by the section accidental skew of script addressing, specific to the image drive data of other pixel 21.
30 pairs of pixels of image drive data system, 21 employed exemplary addressing schemes comprise: based on example images driving data question blank (" DLUT ") 100 shown in Figure 2, with the image update data-switching to image drive data.As shown in Figure 2, if the optical states of pixel 21 is black (" P in formerly during the image update
PIUP=0 "), and according to the image update data, the optical states for desirable this pixel 21 of present image reproducting periods is black (" P
CIUP=0 "), this pixel 21 will drive in the frame by the pulsation reduction one (1) so.If the optical states of pixel 21 is black (" P in formerly during the image update
PIUP=0 "), and according to the image update data are white (" P for the optical states of desirable this pixel 21 of present image reproducting periods
CIUP=1 "), this pixel 21 will drive in the frame by the pulsation rising nine (9) so.If the optical states of pixel 21 is white (" P in formerly during the image update
PIUP=1 "), and according to the image update data, the optical states for desirable this pixel 21 of present image reproducting periods is black (" P
CIUP=0 "), this pixel 21 will drive in the frame by the pulsation reduction six (6) so.If the optical states of pixel 21 is white (" P in formerly during the image update
PIUP=1 "), and according to the image update data, the optical states for desirable this pixel 21 of present image reproducting periods is white (" P
CIUP=1 "), this pixel 21 will drive in the frame by the pulsation rising at 1 so.
Fig. 3 show based in during the previous image update for the previous image update data of " 0011 ", according to DLUT, drive the present image reproducting periods that frame is formed ten (10), present image more new data " 0111 " to the conversion of image drive data.Referring to figs. 1 through 3, during image update, drive frame DF1 and comprise pixel 21 (1) that is reduced by pulsation and the pixel 21 (2)-21 (4) that is raise by pulsation.Drive frame DF2-DF9 and comprise the pixel 21 (2) that is raise by pulsation, drive any pulsation generation that frame DF10 does not comprise pixel 21.
The contrast Figure 4 and 5, can best understanding be applied on the pixel 21, crosstalking between pixel 21 and data line 23 to influence in pixel drive data shown in Figure 3.Concrete, Fig. 4 shows under the pixel 21 and the situation of crosstalking between the data line 23 in not being included in driving frame 1 shown in Figure 3, the pixel data that the hope of each pixel 21 obtains (desired pixel data) DPD.Also can realize the pixel data DPD that the hope of each pixel 21 obtains for remaining driving frame DF2-DF10, therefore, because each pixel 21 is by suitable its correct conceivable optical states that is driven into, the result in the entire image reproducting periods can be the picture quality of the best of pixel 21.
In contrast, Fig. 5 show in being included in driving frame 1 shown in Figure 3 under the situation of the CT that crosstalks between pixel 21 and the data line 23, the effective pixel data of each pixel 21 (effective pixel data) EPD is the skew of the pixel data of pixel 21 during non-selected row address that is caused by the CT that crosstalks in pixel data DPD (Fig. 4) that hope obtains and any difference between the effective pixel data EPD at this.For remaining driving frame DF2-DF9, also can occur by the CT that crosstalks cause during the non-selected row address in pixel data DPD (Fig. 4) that hope obtains and the skew difference between the effective pixel data EPD, therefore, result on the entire image reproducting periods does not have correct its optimum condition separately that is driven to owing to each pixel 21, and can not be the optimum picture quality of pixel 21.Especially under Active Matrix Display situation based on electrophoresis, one skilled in the art will recognize that, drive frame for all, can cause difference on the particle translational speed in electrophoresis material in pixel data DPD that hope obtains and the skew difference between the effective pixel data EPD, therefore, finish, just cause the difference of distribution of particles in case drive, therefore and cause difference (that is optical crosstalk) on gray level.
Crosstalking not merely is the problem based on the Active Matrix Display of electrophoresis by polymer displays exploitation, and it is the problem in the Active Matrix Display of any kind actually, especially in the display of field shield (field-shielded).Therefore the invention provides a kind of system, use Active Matrix Display and image drive data system to realize a kind of new and unique technique, be used to reduce as crosstalking between the pixel of Active Matrix Display and the data line.
Summary of the invention
In a form of the present invention, Active Matrix Display comprises data line and a plurality of pixel, and described a plurality of pixels operationally are coupled to data line, and each pixel can drive between a plurality of optical states.Image drive data system operationally is coupled to described data line, will be applied to described data line through the image drive data of crosstalk compensation thus, be used for during including the image update of crosstalking between described pixel and the described data line, with the optical states of each pixel drive to expection.In order to reduce described crosstalking, described image drive data system is determined the image drive data of not passing through crosstalk compensation, and it is used for the image that under the situation of crosstalking that is not included between pixel and the data line each pixel drive obtained to its hope separately; Based on the described image drive data of crosstalk compensation and the crosstalk couplings constant between pixel and data line of not passing through, determine time averaging pixel data shift; And, determine described driving data through crosstalk compensation based on described time averaging pixel data shift.
Description of drawings
By the detailed description of reading following various embodiments of the invention in conjunction with the accompanying drawings, aforesaid form of the present invention and other form, characteristics and advantage will be more apparent.Detailed description and accompanying drawing only are that the present invention is illustrative and not restrictive, and scope of the present invention is limited by appended claim and equivalent thereof.
Fig. 1 illustrates the block diagram of the pixel known in the art that is driven by image drive data system known in the art;
Fig. 2 shows exemplary image drive data question blank known in the art (" DLUT "), and it is used for the image update data are converted to image drive data;
Fig. 3 shows the exemplary image drive data based on DLUT shown in Figure 2 known in the art;
Fig. 4 shows under the situation of crosstalking that is not included between data line shown in Figure 1 and the pixel, the pixel data that exemplary hope obtains, its with image drive data shown in Figure 3 be applied to data line shown in Figure 1 be associated;
Fig. 5 shows under the situation of crosstalking that is included between data line shown in Figure 1 and the pixel, exemplary effective pixel data, its with image drive data shown in Figure 3 be applied to data line shown in Figure 1 be associated;
Fig. 6 shows schematically showing of pixel known in the art, and it is driven by image drive data system according to an embodiment of the invention;
Fig. 7 shows expression reduces method according to the reduction coefficient of crosstalking of the present invention (scaling factor) process flow diagram;
Fig. 8 shows the process flow diagram of expression according to time averaging (time-averaged) of the present invention pixel data shift reduction method;
Fig. 9 shows the process flow diagram of expression according to first exemplary embodiment of time averaging pixel data shift reduction method shown in Figure 8 of the present invention;
Figure 10 shows the execution of process flow diagram shown in Figure 9;
Figure 11 shows and wishes the mapping to required image drive data voltage level of the pixel data voltage level obtain;
Figure 12 shows the process flow diagram of expression according to second exemplary embodiment of time averaging pixel data shift reduction method shown in Figure 8 of the present invention;
Figure 13 shows the exemplary execution of process flow diagram shown in Figure 12;
Figure 14 shows the process flow diagram of expression according to the 3rd exemplary embodiment of time averaging pixel data shift reduction method shown in Figure 8 of the present invention;
Figure 15 shows according to exemplary compensation look-up-table of the present invention (" CLUT "), is used for the image compensation data are converted to the compensation driving data;
Figure 16 shows the exemplary execution of process flow diagram shown in Figure 13;
Figure 17 shows the example images according to the present invention question blank (" RLUT ") that resets, and is used for the reset image driving data;
Figure 18 shows the exemplary execution of process flow diagram shown in Figure 13; And
Figure 19 shows the exemplary embodiment according to image drive data system of the present invention.
Embodiment
The schematically showing of pixel 21 (Fig. 1) as shown in Figure 6 shown that pixel 21 used the preceding plate condenser C that is connected to pixel node PN and common reference CREF
FPAnd be connected to pixel node PN and at the holding capacitor C of the selection wire 24 of preceding pixel 21
STOREThe addressed elements of thin film transistor (TFT) OTFT form is connected to data line 23, corresponding selection wire 24 and pixel node PN, thus during selecting pixel 21 via corresponding selection wire 24, directly data line 23 is coupled to pixel node PN, therefore, the image drive data that is applied to data line 23 at this moment is received and is stored in the pixel 21.When image drive data is applied to data line 23 and does not select pixel 21 via selection wire 24 (Y), between data line 23 and pixel node PN, formed stray capacitance C
PAR
Image drive data system 40 of the present invention is implemented inventive principle of the present invention, will be applied to data line 23 through the image drive data of crosstalk compensation according to one or more addressing schemes.Concrete, the present inventor has disclosed, and according to following equation [1]-[3], can determine in theory that each drives effectively time averaging (time-averaged) frame, on each pixel 21 voltage V
EPAVG:
V
EPAVG(i)＝V
DD(i)*(1-c)+V
TAPDS [1]
c＝C
PAR/(C
PAR+C
STORE+C
FP) [2]
Wherein, " V
DD (i)" be to drive the driving data that is written in the frame process in the pixel at one; " c " is the coupling constant between pixel 21 and data line 23; " 1-c " is the reduction coefficient (scaling factor) of crosstalking, and " N " is that the total line number of pixel multiply by analyzed driving frame number, " V
TAPDS" be the time averaging pixel data shift of each pixel.For example, following equation [4]-[8] shown as shown in Figure 5, effective time averaging voltage V in driving frame 1 process on each pixel 21
EPAVG:
V
EPAVG(i)＝V
PL*(1-c)+V
TAPDS [4]
V
EPAVG(2)＝V
PH*(1-c)+V
TAPDS [5]
V
EPAVG(3)＝V
PH*(1-c)+V
TAPDS [6]
V
EPAVG(4)＝V
PH*(1-c)+V
TAPDS [7]
V
TAPDS＝(c/4)*(V
PL+3V
PH) [8]
The present inventor had been found that, by compensation/counteracting crosstalk reduction coefficient " (1-c) " and time averaging pixel data shift V
TAPDSEven, can not eliminate the influence of crosstalking between pixel 21 and data line 23 fully, also it can be reduced to minimum.For this reason, the inventor has designed several different methods according to equation [1]-[3] at this, and whereby, image drive data system 40 can compensate/offset crosstalk reduction coefficient " (1-c) " and time averaging pixel data shift V
TAPDSEven, can not eliminate the influence of crosstalking between pixel 21 and data line 23 thus fully, also it can be reduced to minimum.Yet, although being concrete bases, the explanation of following these methods gets in this equation [1]-[3] design, in fact, according to inventive principle of the present invention, can be according to other equation and/or parameter, design by means of the image drive data system of the present invention compensation/counteracting that reduction coefficient and time averaging pixel data shift carry out of crosstalking.
Flow process Figure 50 shown in Fig. 7 has represented that a kind of reduction coefficient of crosstalking of the present invention reduces method.The step S52 of flow process Figure 50 comprises: (for example, according to " c " of equation [2] at this) determines the reduction coefficient of crosstalking based on the crosstalk couplings constant between pixel 21 and data line 23; The step S54 of flow process Figure 50 comprises: adjust the pixel data voltage level (V in the Figure 4 and 5 for example based on the determined reduction coefficient of crosstalking in step S52
PHAnd V
PL).
In fact, in view of the reduction coefficient and the incoherent fact of image update data of crosstalking, can be to the pixel data voltage level by adjusting by the voltage that one skilled in the art would recognize that, adjust in proportion for the proper driver of image drive data system 40, perhaps the waveform of image drive data can prolong according to coefficient 1/ (1-c).In addition, image drive data system of the present invention can be designed as, and works together with all kinds of Active Matrix Displays with the different crosstalk couplings constants between every data line and respective pixel thereof.In the case, image drive data system of the present invention should be programmed to: according to the type by the Active Matrix Display of system drive, calculate and/or be stored in the suitable crosstalk couplings constant between every data line and the pixel separately thereof.
Flow process Figure 60 shown in Fig. 8 has represented a kind of time averaging pixel data shift reduction method of the present invention, this method is mainly wanted to compensate/offset by at (for example, the time averaging pixel data shift V in the equation [3] at this of the caused time averaging pixel data shift of crosstalking between pixel 21 and the data line 23
TAPDS).However, the needs of this reduction coefficient of crosstalking can individual processing (flow process Figure 50 for example shown in Figure 7) for compensation/counteracting, also can the average pixel data shift of binding time handle (flow process Figure 80 for example shown in Figure 12).
With reference to Fig. 8, for the ease of understanding to time averaging pixel data shift reduction method of the present invention, will be in the environment of four (4) pixels 21 shown in Figure 6 explained flowchart 60.According to the exemplary illustration of this flow process Figure 60, how to one skilled in the art will recognize that on the basis of data line one by one, time averaging pixel data shift reduction method of the present invention is used for picture element matrix.
With reference to Fig. 6 and 8, when the image by pixel 21 projections need be updated, just start flow process Figure 60 by image drive data system 40.The step S62 of flow process Figure 60 comprises: view data drive system 40 is determined to be used for pixel 21 is driven into the image drive data of not passing through crosstalk compensation of the optical states of expection under the situation of crosstalking that is not included between pixel 21 and the data line 23.In the embodiment of step S62, can use image drive data question blank (DLUT 100 for example shown in Figure 2) that the image update data of pixel 21 are converted to the image drive data of not passing through crosstalk compensation (for example, shown in Figure 3 image drive data IDD).
The step S64 of flow process Figure 60 comprises: image drive data system 40 is determined time averaging pixel data shift based on above-mentioned image drive data and the crosstalk couplings constant that does not pass through crosstalk compensation.In the embodiment of step S64, carry out equation described herein [2] and [3], with based on image drive data IDD that does not pass through crosstalk compensation (Fig. 3) and crosstalk couplings constant c, determine time averaging pixel data shift V
TAPDS
The step S66 of flow process Figure 60 comprises: image drive data system 40 is determined the image drive data through crosstalk compensation based on above-mentioned time averaging pixel data shift; The step S68 of flow process Figure 60 comprises: image drive data system 40 is applied to data line 23 according to image drive data system 40 employed one or more addressing schemes with above-mentioned image drive data through crosstalk compensation.
In fact, the present invention does not impose any restriction or any constraint for the mode that implementation flow process Figure 60 is adopted.Like this, the following explanation of the exemplary embodiment of step 66 shown in Fig. 9-19 and the S68 scope of conditioning step S66 and S68 not.
The exemplary embodiment of step S66 and S68 is based on introduce " during the blank addressing (blank addressing period) " (that is non-capable address period) in one or more driving frames.This embodiment can require for each drive frame time period increase and/or drive the reducing of each row address period of frame for each.As what one skilled in the art would recognize that, can adopt selection wire to realize this embodiment greater than the driver hardware of number of lines of pixels.In addition, this embodiment provides for time averaging pixel data shift (for example, at this V of equation [3]
TAPDS) direct compensation.
Fig. 9 shows according to of the present invention, is illustrated in the flow process Figure 70 that introduces the method for " during the blank addressing " in the one or more driving frames during the image update.
The step S72 of flow process Figure 70 comprises: image drive data system 40 is determined the non-driving data of crosstalk compensation, and it is to reduce the function that each drives frame or drives the time averaging pixel data shift of frame group.In the embodiment of step S72, constitute the non-driving data of crosstalk compensation (cross-talk compensation non-drive data) during the blank addressing that drives frame, the difference between the average voltage of time averaging pixel data shift and the non-driving data of crosstalk compensation equals or is approximately 0 whereby.
The step S74 of flow process Figure 70 comprises: in the capable address period of the exemplary driving frame that illustrates, the image drive data that image drive data system 40 will not passed through crosstalk compensation is applied to data line 23 in as the Figure 10 with the capable address period 1-4 that drives frame 1 '.
The step S76 of flow process Figure 70 comprises: as have the blank addressing that drives frame 1 ' during Figure 10 in during the blank addressing of the exemplary driving frame that illustrates in, image drive data system 40 is applied to data line 23 with the non-driving data of crosstalk compensation.
In the environment of Figure 10, comprise through image drive data (the cross-talkcompensated image drive data) CIDD of crosstalk compensation: be applied to the image drive data of not passing through crosstalk compensation (for example, the IDD of DF1 shown in Figure 3) of data line 23 in the address period of the being expert at 1-4 process and during blank addressing, be applied to the non-driving data CNDD of crosstalk compensation of data line 23 in the process.
Still with reference to Fig. 8, one skilled in the art would recognize that, flow process Figure 70 will be best the time averaging pixel data shift of compensation/counteractings rest image, but this compensation/time averaging pixel data shift of counteractings change to the image of driving frame for the driving frame will be not ideal.Therefore, in fact, the actual realization during the blank addressing can be depended on many factors, includes but not limited to: the structural arrangements of each pixel and used addressed elements separately and addressing scheme.And, can also be implemented in the weighted mean that drives the time averaging pixel data shift on the frame basis one by one.
Another exemplary embodiment of step S66 and S68 (Fig. 7) is based on the pixel voltage V that hope is obtained
DPDData line voltage V with needs
RIDDMapping proofread and correct, as shown in figure 11.Dotted line is illustrated in and is not included under the situation of crosstalking between pixel 21 and the data line 23, wishes the pixel voltage V that obtains
DPDData line voltage V with needs
RIDDMapping one to one (that is slope S 1=1).Solid line is illustrated in and is included under the situation of crosstalking arbitrarily between pixel 21 and the data line 23, expection pixel voltage V
DPDData line voltage V with needs
RIDDMapping, whereby according to following equation [10] and [11], this straight line have slope S 2 and the skew OS:
S2＝1/(1-c) [10]
OS＝-V
TAPDS/(1-c) [11]
Wherein, same, " c " coupling constant between pixel 21 and data line 23, " (1-c) " is the reduction coefficient of crosstalking, and " V
TAPDS" be the time averaging pixel data shift of each pixel 21.
Figure 12 shows flow process Figure 80, and expression is according to map correction method of the present invention.The step S82 of flow process Figure 80 comprises: view data drive system 40 is calculated mapping correction voltage V
MCIn the embodiment of step S82, calculate mapping correction voltage V according to following [12]
MC:
V
MC＝(V
DPD-V
TAPDS)/(1-c) [12]
The step S84 of flow process Figure 80 comprises: image drive data system 40 is based on mapping correction voltage V
MC, determine image drive data through crosstalk compensation.In one embodiment, do not pass through the image drive data (IDD of DF1 for example shown in Figure 2) of crosstalk compensation by mapping correction voltage V
MCCarry out amplitude modulation(PAM), thereby produce image drive data CIDD, as exemplary display among Figure 13 by dotted arrow through crosstalk compensation.
The step S86 of flow process Figure 80 comprises: as have exemplary illustrating among the Figure 13 that drives frame 1 through the image drive data CIDD of crosstalk compensation and row address period 1-4, image drive data system 40 will be applied to data line 23 through the image drive data of crosstalk compensation according to one or more addressing schemes.
Another exemplary embodiment of step S66 and S68 (Fig. 8) is created compensation look-up-table to determine the crosstalk compensation driving data based on by time averaging pixel data shift is associated to reduce time averaging pixel data shift as far as possible to greatest extent with the image compensation data.For example, described association comprises time averaging pixel data shift is divided into two or more numerical ranges, and each optical states (for example being used for black and two white optical states) of described numerical range and pixel 23 is interrelated.One skilled in the art would recognize that, according to interrelated in the compensation look-up-table of the present invention, along with the increase of the optical states quantity of the quantity of the numerical range of time averaging pixel data shift and/or pixel 23, the accuracy in the compensation/counteracting of time averaging pixel data shift also can increase.
Figure 14 shows flow process Figure 90 of expression compensation look-up-table method of the present invention.The step S92 of flow process Figure 90 comprises: image drive data system 40 according to the black light of pixel 23 learn that state " 0 " and white light state " 1 " are associated, based on positive scope and the negative scope V of compensation look-up-table (" CLUT ") (CLUT 101 for example shown in Figure 15)
TAPDS, determine the crosstalk compensation driving data.The step S94 of flow process Figure 90 comprises: image drive data system 40 is applied to data line 23 according to the one or more addressing schemes during the image update stage shown in Figure 3 with the image drive data (IDD of DF1 for example shown in Figure 3) of not passing through crosstalk compensation.The step S96 of flow process Figure 90 comprises: the compensation of image drive data system 40 during according to image update shown in Figure 16 drives the one or more addressing schemes in stage (" the CDP ") process, and the crosstalk compensation driving data is applied to data line 23.
The optional step S98 of flow process Figure 90 comprises: the one or more addressing schemes in reset drives stage (" the RDP ") process of image drive data system 40 during according to image update shown in Figure 180 are applied to data line 23 based on the question blank that resets (" RLUT ") (RLUT102 for example shown in Figure 17) with the null images driving data.RLUT 102 as shown in figure 17 is empty forms of DLUT 100 (Fig. 2), the image update data are applied to RLUT 102 whereby, come to be various types of image drive data system 40 internal hardware that resets, wherein image drive data system 40 needs the present image state of internal hardware reflection Active Matrix Display.
In Fig. 2,16 and 18 environment, image drive data through crosstalk compensation comprises: the image drive data IDD that does not pass through crosstalk compensation that is applied to data line 23 in the image update phase process during image update, compensation during image update drives in the phase process and is applied to the reset drives data RDD that is applied to data line 23 in the crosstalk compensation driving data CDD of data line 23 and the reset drives phase process during image update.
In fact, the present invention is both to image drive data system version of the present invention, also not to imposing any restriction or any constraint by the type of the Active Matrix Display of image drive data system operation of the present invention.Therefore, the exemplary image drive data system and the following explanation of Active Matrix Display do not limit for the image drive data system of the object of the invention and the scope of Active Matrix Display.
With reference to Figure 19, view data drive system 40 is used storer 41, CPU (central processing unit) (" CPU ") 42, one or more peripherals 43, display driver 44, one or more row driver 45 and one or more line driver 46.Active Matrix Display 20 (for example, display, LCD or light emitting diode indicator based on electrophoresis) comprise the M * N matrix of pixel 21, pixel 21 has exercisable respectively alignment separately (being data line) and the line (being selection wire) that is connected to driver 45 and driver 46.The inventive principle of illustrating according to example as shown in Fig. 6-18 and related description of the present invention, CPU 42 and display driver 44 collaborative works, optionally row selection signal is applied to each selection wire 24 of display 20 in conjunction with (or a plurality of) line driver 36, control row driver 45 in the time will being applied to each bar data line of display 20 through the driving data of crosstalk compensation, thus during each image update, each pixel 21 is driven into desirable optical states.
With reference to Fig. 7-18, term " is determined " to comprise by means of the active of drive system definite (promptly, the dynamic execution of drive system made required necessary all algorithms of determining), or determine (that is, drive system reads and makes the required result who determines the predetermined execution of necessary all algorithms) by means of drive system passive.
Only, be significantly can make modifications and variations to those skilled in the art, and can not break away from the scope of the present invention that limits by claims described embodiment as an example at the above embodiments of the invention that illustrated.In addition, in the claims, place any reference marker of bracket should not be interpreted as limiting claim.Term " comprises " element do not got rid of except listing in the claims or the existence of step, and term " " is not got rid of a plurality of.The present invention can reach by means of the computing machine of suitably programming and realize by means of the hardware that comprises several different elements.In having enumerated the equipment claim of several means, several can the embodiment in these devices by one or identical hardware.The minimum fact in the measure described in the independent claims that differ from one another does not show that the combination of these measures can not be used to produce good result.
Claims (20)
1. system comprises:
Active Matrix Display (20) comprises data line (23), and described data line (23) operationally is coupled to a plurality of pixels (21), and described pixel (21) is operationally driven between a plurality of images; And
Image drive data system (40), operationally be coupled to described data line (23), in order to comprise under the situation of crosstalking between described pixel (21) and the described data line (23), to be applied to described data line (23) through the image drive data (CIDD) of crosstalk compensation, be used for during image update, each pixel (21) is driven into desirable optical states
Wherein, described image drive data system (40) is used for not comprising under the situation of crosstalking between described pixel (21) and the described data line (23), definite image drive data (IDD) of not passing through crosstalk compensation, described image drive data (IDD) of not passing through crosstalk compensation is used for each pixel (21) is driven into its desirable image separately
Wherein, described image drive data system (40) also is used for the image drive data (IDD) and the crosstalk couplings constant between described pixel (21) and described data line (23) that do not pass through crosstalk compensation based on described, determine time averaging pixel data shift, and
Wherein, described image drive data system (40) also is used for the described time averaging pixel data shift based on described pixel (21), determines described driving data (CIDD) through crosstalk compensation.
2. the system as claimed in claim 1, wherein, described image drive data (CIDD) through crosstalk compensation is also based on the reduction coefficient of crosstalking, and the described reduction coefficient of crosstalking depends on the crosstalk couplings constant between described pixel (21) and described data line (23).
3. the system as claimed in claim 1,
Wherein, described image drive data (CIDD) through crosstalk compensation comprises the described image drive data (IDD) of not passing through crosstalk compensation that is obtained from the image update data; And
Wherein, described image drive data (CIDD) through crosstalk compensation also comprises the non-driving data of crosstalk compensation (CNDD), and it obtains as reducing the function of described time averaging pixel data shift.
4. system as claimed in claim 3 wherein, is applied to described data line (23) with described image drive data (CIDD) through crosstalk compensation and may further comprise the steps:
In at least one row address period during described image update, described image drive data (IDD) of not passing through crosstalk compensation is applied to described data line (23); And
During at least one blank addressing during described image update, the non-driving data of described crosstalk compensation (NDD) is applied to described data line (23).
5. the system as claimed in claim 1, wherein, described image drive data (CIDD) through crosstalk compensation comprises the described amplitude modulation(PAM) that does not pass through the image drive data (IDD) of crosstalk compensation, and it is based in described time averaging pixel data shift and the crosstalk couplings constant between described pixel (21) and described data line (23) at least one.
6. system as claimed in claim 5 wherein, is applied to described data line (23) with described image drive data (CIDD) through crosstalk compensation and comprises step:
In at least one row address period during described image update, the described amplitude modulation(PAM) that does not pass through the image drive data (IDD) of crosstalk compensation is applied to described data line (23).
7. the system as claimed in claim 1,
Wherein, described image drive data (CIDD) through crosstalk compensation comprises the described image drive data (IDD) of not passing through crosstalk compensation that is obtained from the image update data; And
Wherein, described image drive data (CIDD) through crosstalk compensation also comprises the crosstalk compensation driving data (CDD) of the correlativity that is obtained from image compensation data and described time averaging pixel data shift, and described image compensation data are the functions that reduce described time averaging pixel data shift.
8. system as claimed in claim 7 wherein, is applied to described data line (23) with described image drive data (CIDD) through crosstalk compensation and may further comprise the steps:
In the image update phase process during described image update, described image drive data (IDD) of not passing through crosstalk compensation is applied to described data line (23); And
Compensation during described image update drives in the phase process, and the non-driving data of described crosstalk compensation (NDD) is applied to described data line (23).
9. system as claimed in claim 8,
Wherein, described image drive data (CIDD) through crosstalk compensation also comprises the reset image driving data (RIDD) that is obtained from described image update data; And
Wherein, described image drive data (CIDD) through crosstalk compensation is applied to described data line (23) also to be comprised: in the image reseting stage process during described image update, described reset image driving data (RIDD) is applied to described data line (23).
10. the system as claimed in claim 1 wherein, is selected described Active Matrix Display (20) from the display group that comprises display, LCD and light emitting diode indicator based on electrophoresis.
11. a system comprises:
Active Matrix Display (20) comprises data line (23), and described data line (23) operationally is coupled to a plurality of pixels (21), and described pixel (21) is operationally driven between a plurality of images; And
Image drive data system (40) comprising:
Be used for comprising under the situation of crosstalking between described pixel (21) and the described data line (23), during image update, to be applied to described data line (23) through the image drive data (CIDD) of crosstalk compensation each pixel (21) is driven into the device of desirable optical states
Be used for not comprising definite device that does not pass through the image drive data (IDD) of crosstalk compensation under the situation of crosstalking between described pixel (21) and the described data line (23), described image drive data (IDD) of not passing through crosstalk compensation is used for each pixel (21) is driven into its desirable image separately
Be used for determining the device of time averaging pixel data shift based on the described image drive data (IDD) of crosstalk compensation and the crosstalk couplings constant between described pixel (21) and the described data line (23) of not passing through, and
Be used for described time averaging pixel data shift, determine the device of the driving data (CIDD) of described process crosstalk compensation based on described pixel (21).
12. system as claimed in claim 11, wherein, the image drive data (CIDD) of described process crosstalk compensation is also based on the reduction coefficient of crosstalking, and the described reduction coefficient of crosstalking depends on the crosstalk couplings constant between described pixel (21) and described data line (23).
13. system as claimed in claim 11,
Wherein, described image drive data (CIDD) through crosstalk compensation comprises the described image drive data (IDD) of not passing through crosstalk compensation that is obtained from the image update data; And
Wherein, described image drive data (CIDD) through crosstalk compensation also comprises the non-driving data of crosstalk compensation (CNDD), and it obtains as reducing the function of described time averaging pixel data shift.
14. system as claimed in claim 13 wherein, is used for the device that described image drive data (CIDD) through crosstalk compensation is applied to described data line (23) is comprised:
In at least one row address period process during described image update, described image drive data (IDD) of not passing through crosstalk compensation is applied to described data line (23); And
In the process, the non-driving data of described crosstalk compensation (NDD) is applied to described data line (23) during at least one blank addressing during described image update.
15. system as claimed in claim 11, wherein, described image drive data (CIDD) through crosstalk compensation comprises the described amplitude modulation(PAM) that does not pass through the image drive data (IDD) of crosstalk compensation, and it is based in described time averaging pixel data shift and the crosstalk couplings constant between described pixel (21) and described data line (23) at least one.
16. system as claimed in claim 15 wherein, is used for the device that described image drive data (CIDD) through crosstalk compensation is applied to described data line (23) is comprised:
In at least one row address period during described image update, the described amplitude modulation(PAM) that does not pass through the image drive data (IDD) of crosstalk compensation is applied to described data line (23).
17. system as claimed in claim 11,
Wherein, described image drive data (CIDD) through crosstalk compensation comprises the described image drive data (IDD) of not passing through crosstalk compensation that is obtained from the image update data; And
Wherein, described image drive data (CIDD) through crosstalk compensation also comprises the crosstalk compensation driving data (CDD) of the correlativity that is obtained from image compensation data and described time averaging pixel data shift, and described image compensation data are the functions that reduce described time averaging pixel data shift.
18. system as claimed in claim 17 wherein, is used for the device that described image drive data (CIDD) through crosstalk compensation is applied to described data line (23) is comprised:
In the image update phase process during described image update, described image drive data (IDD) of not passing through crosstalk compensation is applied to described data line (23); And
Compensation during described image update drives in the phase process, and the non-driving data of described crosstalk compensation (NDD) is applied to described data line (23).
19. system as claimed in claim 18,
Wherein, described image drive data (CIDD) through crosstalk compensation also comprises the reset image driving data (RIDD) that is obtained from described image update data; And
Wherein, be used for the device that described image drive data (CIDD) through crosstalk compensation is applied to described data line (23) also is included in image reseting stage process during the described image update, described reset image driving data (RIDD) is applied to described data line (23).
20. described Active Matrix Display (20) wherein, is selected by system as claimed in claim 10 from the display group that comprises display, LCD and light emitting diode indicator based on electrophoresis.
Applications Claiming Priority (2)
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|---|---|---|---|
| US68364705P | 2005-05-23 | 2005-05-23 | |
| US60/683,647 | 2005-05-23 |
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| CNA2006800177857A Pending CN101180669A (en) | 2005-05-23 | 2006-05-19 | Cross-talk reduction for active matrix displays |
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| KR (1) | KR20080015084A (en) |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9510470B2 (en) | 2013-12-24 | 2016-11-29 | Polyera Corporation | Support structures for a flexible electronic component |
| US9560751B2 (en) | 2013-12-24 | 2017-01-31 | Polyera Corporation | Support structures for an attachable, two-dimensional flexible electronic device |
| US9848494B2 (en) | 2013-12-24 | 2017-12-19 | Flexterra, Inc. | Support structures for a flexible electronic component |
| US10121455B2 (en) | 2014-02-10 | 2018-11-06 | Flexterra, Inc. | Attachable device with flexible electronic display orientation detection |
| US10289163B2 (en) | 2014-05-28 | 2019-05-14 | Flexterra, Inc. | Device with flexible electronic components on multiple surfaces |
| US10318129B2 (en) | 2013-08-27 | 2019-06-11 | Flexterra, Inc. | Attachable device with flexible display and detection of flex state and/or location |
| US10372164B2 (en) | 2013-12-24 | 2019-08-06 | Flexterra, Inc. | Flexible electronic display with user interface based on sensed movements |
| US10459485B2 (en) | 2013-09-10 | 2019-10-29 | Flexterra, Inc. | Attachable article with signaling, split display and messaging features |
| US10782734B2 (en) | 2015-02-26 | 2020-09-22 | Flexterra, Inc. | Attachable device having a flexible electronic component |
| US11079620B2 (en) | 2013-08-13 | 2021-08-03 | Flexterra, Inc. | Optimization of electronic display areas |
| US11086357B2 (en) | 2013-08-27 | 2021-08-10 | Flexterra, Inc. | Attachable device having a flexible electronic component |
| CN114830219A (en) * | 2020-02-07 | 2022-07-29 | 谷歌有限责任公司 | System and method for reducing display artifacts |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR102283925B1 (en) | 2014-10-29 | 2021-08-02 | 삼성디스플레이 주식회사 | Organic light emitting display device and method of driving the same |
| CN113689826B (en) * | 2021-08-24 | 2022-12-20 | 京东方科技集团股份有限公司 | A driving method of electronic paper, electronic paper and storage medium |
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| US4873516A (en) * | 1987-06-01 | 1989-10-10 | General Electric Company | Method and system for eliminating cross-talk in thin film transistor matrix addressed liquid crystal displays |
| GB9705703D0 (en) * | 1996-05-17 | 1997-05-07 | Philips Electronics Nv | Active matrix liquid crystal display device |
| JP3571993B2 (en) * | 2000-04-06 | 2004-09-29 | キヤノン株式会社 | Driving method of liquid crystal display element |
-
2006
- 2006-05-19 JP JP2008512991A patent/JP2008542811A/en active Pending
- 2006-05-19 KR KR1020077026997A patent/KR20080015084A/en not_active Withdrawn
- 2006-05-19 TW TW095118031A patent/TW200710799A/en unknown
- 2006-05-19 CN CNA2006800177857A patent/CN101180669A/en active Pending
- 2006-05-19 WO PCT/IB2006/051613 patent/WO2006126157A2/en not_active Ceased
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| US11079620B2 (en) | 2013-08-13 | 2021-08-03 | Flexterra, Inc. | Optimization of electronic display areas |
| US11086357B2 (en) | 2013-08-27 | 2021-08-10 | Flexterra, Inc. | Attachable device having a flexible electronic component |
| US10318129B2 (en) | 2013-08-27 | 2019-06-11 | Flexterra, Inc. | Attachable device with flexible display and detection of flex state and/or location |
| US10459485B2 (en) | 2013-09-10 | 2019-10-29 | Flexterra, Inc. | Attachable article with signaling, split display and messaging features |
| US10834822B2 (en) | 2013-12-24 | 2020-11-10 | Flexterra, Inc. | Support structures for a flexible electronic component |
| US9560751B2 (en) | 2013-12-24 | 2017-01-31 | Polyera Corporation | Support structures for an attachable, two-dimensional flexible electronic device |
| US9848494B2 (en) | 2013-12-24 | 2017-12-19 | Flexterra, Inc. | Support structures for a flexible electronic component |
| US9980402B2 (en) | 2013-12-24 | 2018-05-22 | Flexterra, Inc. | Support structures for a flexible electronic component |
| US9510470B2 (en) | 2013-12-24 | 2016-11-29 | Polyera Corporation | Support structures for a flexible electronic component |
| US10143080B2 (en) | 2013-12-24 | 2018-11-27 | Flexterra, Inc. | Support structures for an attachable, two-dimensional flexible electronic device |
| US10201089B2 (en) | 2013-12-24 | 2019-02-05 | Flexterra, Inc. | Support structures for a flexible electronic component |
| US10372164B2 (en) | 2013-12-24 | 2019-08-06 | Flexterra, Inc. | Flexible electronic display with user interface based on sensed movements |
| US10121455B2 (en) | 2014-02-10 | 2018-11-06 | Flexterra, Inc. | Attachable device with flexible electronic display orientation detection |
| US10621956B2 (en) | 2014-02-10 | 2020-04-14 | Flexterra, Inc. | Attachable device with flexible electronic display orientation detection |
| US10289163B2 (en) | 2014-05-28 | 2019-05-14 | Flexterra, Inc. | Device with flexible electronic components on multiple surfaces |
| US10782734B2 (en) | 2015-02-26 | 2020-09-22 | Flexterra, Inc. | Attachable device having a flexible electronic component |
| CN114830219A (en) * | 2020-02-07 | 2022-07-29 | 谷歌有限责任公司 | System and method for reducing display artifacts |
Also Published As
| Publication number | Publication date |
|---|---|
| KR20080015084A (en) | 2008-02-18 |
| WO2006126157A3 (en) | 2007-10-04 |
| WO2006126157A2 (en) | 2006-11-30 |
| JP2008542811A (en) | 2008-11-27 |
| TW200710799A (en) | 2007-03-16 |
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