CN102262864A - Electrophoresis display capable of improving ghost and method for updating picture of electrophoresis display - Google Patents
Electrophoresis display capable of improving ghost and method for updating picture of electrophoresis display Download PDFInfo
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- CN102262864A CN102262864A CN2011102523490A CN201110252349A CN102262864A CN 102262864 A CN102262864 A CN 102262864A CN 2011102523490 A CN2011102523490 A CN 2011102523490A CN 201110252349 A CN201110252349 A CN 201110252349A CN 102262864 A CN102262864 A CN 102262864A
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Abstract
The invention discloses an electrophoresis display capable of improving a ghost. The electrophoresis display comprises an electrophoresis panel, a pixel gray scale recording unit and a control signal generation unit, wherein the electrophoresis panel comprises a plurality of pixels; the pixel gray scale recording unit is used for recording gray scale values of the plurality of pixels when the electrophoresis panel display a picture according to an image signal; and the control signal generation unit is coupled to the pixel gray scale recording unit and the plurality of pixels and used for giving a first updating control signal to a first group of pixels in the plurality of pixels according to the gray scale values of the plurality of pixels when the electrophoresis panel updates the picture according to the image signal, and giving a second updating control signal, which is different from the first updating control signal, to a second group of pixels in the plurality of pixels. The electrophoresis display can improve the strong flicking of the electrophoresis panel during the updating of the picture.
Description
Technical field
The invention relates to a kind of electrophoretic display device (EPD) and menu renewal method thereof, refer to that especially a kind of GTG value according to each pixel comes electrophoretic display device (EPD) and the menu renewal method thereof of particle to improve ghost of each pixel of disturbance.
Background technology
Electrophoretic display device (EPD) have be convenient for carrying, the function of power saving, saving paper and carbon reduction.Electrophoresis panel in the electrophoretic display device (EPD) utilizes voltage to control charged black and white particle, and to reach the GTG value of desiring display frame, wherein the disadvantage of electrophoresis panel is exactly ghost (ghost).So-called ghost is that the black and white particle not have to arrive corresponding to the new GTG value of picture when electrophoresis panel updating picture, that is some black and white particle also rests on the GTG value corresponding to last picture, causes the part of residual last picture on the new picture.Therefore prior art is before frame update the black and white particle to be done significantly disturbance action, avoids the black and white particle to rest on GTG value corresponding to last picture.
Please refer to Figure 1A and Figure 1B, Figure 1A and Figure 1B be for prior art explanation when the electrophoresis panel updating picture, charged black/white colored particle is controlled the synoptic diagram that voltage moves according to upgrading, wherein white particles is electronegative, the black particles positively charged.Shown in Figure 1A, the common electrode VCOM of electrophoresis panel 102 input negative voltage earlier moves toward electrophoresis panel 102 tops by white particles, and black particles then moves toward electrophoresis panel 102 belows.At this moment, electrophoresis panel 102 can because white particles above electrophoresis panel 102 and display white.Then, common electrode VCOM input positive voltage moves toward electrophoresis panel 102 tops by black particles, and white particles then moves toward electrophoresis panel 102 belows.At this moment, electrophoresis panel 102 can because black particles above electrophoresis panel 102 and show black.Shown in Figure 1B, common electrode VCOM input positive voltage earlier moves toward electrophoresis panel 102 tops by black particles, and white particles then moves toward electrophoresis panel 102 belows.At this moment, electrophoresis panel 102 can because black particles above electrophoresis panel 102 and show black.Then, the common electrode VCOM of electrophoresis panel 102 input negative voltage moves toward electrophoresis panel 102 tops by white particles, and black particles then moves toward electrophoresis panel 102 belows.At this moment, electrophoresis panel 102 can because white particles above electrophoresis panel 102 and display white.
Fig. 2 is voltage and the time relation synoptic diagram for the common electrode VCOM input that realizes Figure 1B.As shown in Figure 2, G1-GN is the GTG value, and GN represents the most black GTG value, and wherein N is a positive integer; TBLACK is the time that positive voltage VPOS is provided for common electrode VCOM system.This moment, black particles moved toward electrophoresis panel 102 tops, so electrophoresis panel 102 shows black; TWHITE is the time that negative voltage VNEG is provided for common electrode VCOM system.This moment, white particles moved toward electrophoresis panel 102 tops, so electrophoresis panel 102 display white; And TINITIAL represents the time of frame update, equals TBLACK+TWHITE.In addition, TG1-TGN is for after the frame update, and the black and white particle arrives the time of the required GTG value of next picture position; TWAIT is that the short particle of mobile route waits for that the long particle of mobile route moves to the time of corresponding GTG value, and common electrode VCOM only provided and kept voltage VDATA this moment, and positive voltage VPOS or negative voltage VNEG need be provided.
Though prior art can effectively reduce the ghost of electrophoresis panel 102, because in the process of frame update, electrophoresis panel 102 can first display white show black again, or shows black display white more earlier.Therefore, in the process of frame update, the user can feel that electrophoresis panel 102 picture displayed glimmer strongly.In addition, because prior art is to allow the black/white colored particle do significantly disturbance,, cause the long and power that increases consumption of time that the required time of frame update is of a specified duration, voltage is supplied with so the path that the black/white colored particle moves is longer.
Summary of the invention
One embodiment of the invention provide a kind of electrophoretic display device (EPD) that improves ghost.This electrophoretic display device (EPD) comprises an electrophoresis panel, a pixel gray level record cell and a controlling signal generation unit.This electrophoresis panel comprises a plurality of pixels; This pixel gray level record cell system is in order to write down when this electrophoresis panel shows a picture according to an image signal GTG value of these a plurality of pixels; This controlling signal generation unit system is coupled to this pixel gray level record cell and these a plurality of pixels, in order to GTG value according to these a plurality of pixels, first group of pixel in a plurality of pixels gives one first and upgrades controlling signal to this when this electrophoresis panel carries out frame updating according to this image signal, and gives one to second group of pixel in these a plurality of pixels and differ from this and first upgrade second of controlling signal and upgrade controlling signal.
Another embodiment of the present invention provides a kind of menu renewal method that improves the electrophoretic display device (EPD) ghost.This menu renewal method comprises record when an electrophoresis panel shows a picture according to an image signal, the GTG value of a plurality of pixels; GTG value according to these a plurality of pixels, first group of pixel in a plurality of pixels gives one first and upgrades controlling signal to this when this electrophoresis panel carries out frame updating according to this image signal, and gives one to second group of pixel in these a plurality of pixels and differ from this and first upgrade second of controlling signal and upgrade controlling signal; After this electrophoresis panel carries out frame updating, the GTG value of these a plurality of pixels when showing a new picture according to this image signal according to this electrophoresis panel, and a look-up table, provide the GTG controlling signal to these a plurality of pixels, be adjusted to corresponding to this new picture with GTG value that will these a plurality of pixels.
The invention provides a kind of electrophoretic display device (EPD) and menu renewal method thereof that improves ghost.The advantage of this electrophoretic display device (EPD) and menu renewal method thereof is to come the particle (a plurality of black particles and a plurality of white particles) of each pixel of disturbance according to the GTG value of each pixel when being frame update.Because the mobile route of the particle that a plurality of pixel comprised not is all earlier up more down or all down more up, so the strong flickering of one electrophoresis panel when the present invention can improve frame update.In addition, the present invention is the mobile route that decides the particle of each pixel according to the GTG value of each pixel, therefore not only can shorten the mobile route of the particle of each pixel, and when the short particle of mobile route when waiting for the long particle of mobile route, do not need to supply with extra voltage and give mobile route short particle.So, compared to prior art, the present invention can reduce the time of frame update and the consumption that reduces power.
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Description of drawings
Figure 1A and Figure 1B be for prior art explanation when the electrophoresis panel updating picture, charged black/white colored particle is controlled the synoptic diagram that voltage moves according to upgrading.
Fig. 2 is voltage and the time relation synoptic diagram for the common electrode input that realizes Figure 1B.
Fig. 3 A is a kind of synoptic diagram that improves the electrophoretic display device (EPD) of ghost of first embodiment of the present invention explanation.
Fig. 3 B is for illustrating that a pixel comprises the synoptic diagram of a plurality of white particles and a plurality of black particles.
Fig. 3 C is the synoptic diagram for the section of explanation electrophoresis panel.
Fig. 3 D is the synoptic diagram for the explanation look-up table.
Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 4 B, Fig. 4 C and Fig. 4 D illustrate when the electrophoresis panel carries out frame updating according to image signal for the second embodiment of the present invention, the controlling signal generation unit is according to the GTG value of a plurality of pixels of electrophoresis panel, give first to first group of pixel in a plurality of pixels of electrophoresis panel and upgrade controlling signal, and second group of pixel in a plurality of pixels of electrophoresis panel differed from the synoptic diagram that second of the first renewal controlling signal is upgraded controlling signal.
Fig. 4 E upgrades the synoptic diagram that controlling signal and second is upgraded controlling signal for explanation corresponding to first of second embodiment.
Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 5 A, Fig. 5 B, Fig. 4 D illustrate when the electrophoresis panel carries out frame updating according to image signal for the third embodiment of the present invention, the controlling signal generation unit is according to the GTG value of a plurality of pixels of electrophoresis panel, give first to first group of pixel in a plurality of pixels of electrophoresis panel and upgrade controlling signal, and second group of pixel in a plurality of pixels of electrophoresis panel differed from the synoptic diagram that second of the first renewal controlling signal is upgraded controlling signal.
Fig. 5 C upgrades the synoptic diagram that controlling signal and second is upgraded controlling signal for explanation corresponding to first of the 3rd embodiment.
Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 6 B, Fig. 5 B, Fig. 4 D illustrate when the electrophoresis panel carries out frame updating according to image signal for the fourth embodiment of the present invention, the controlling signal generation unit is according to the GTG value of a plurality of pixels of electrophoresis panel, give first to first group of pixel in a plurality of pixels of electrophoresis panel and upgrade controlling signal, and second group of pixel in a plurality of pixels of electrophoresis panel differed from the synoptic diagram that second of the first renewal controlling signal is upgraded controlling signal.
Fig. 6 C upgrades the synoptic diagram that controlling signal and second is upgraded controlling signal for explanation corresponding to first of the 4th embodiment.
Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 7 A, Fig. 4 C, Fig. 4 D illustrate when the electrophoresis panel carries out frame updating according to image signal for the fifth embodiment of the present invention, the controlling signal generation unit is according to the GTG value of a plurality of pixels of electrophoresis panel, give first to first group of pixel in a plurality of pixels of electrophoresis panel and upgrade controlling signal, and second group of pixel in a plurality of pixels of electrophoresis panel differed from the synoptic diagram that second of the first renewal controlling signal is upgraded controlling signal.
Fig. 7 B upgrades the synoptic diagram that controlling signal and second is upgraded controlling signal for explanation corresponding to first of the 5th embodiment.
Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 8 A, Fig. 4 D illustrate when the electrophoresis panel carries out frame updating according to image signal for the sixth embodiment of the present invention, the controlling signal generation unit is according to the GTG value of a plurality of pixels of electrophoresis panel, give first to first group of pixel in a plurality of pixels of electrophoresis panel and upgrade controlling signal, and second group of pixel in a plurality of pixels of electrophoresis panel differed from the synoptic diagram that second of the first renewal controlling signal is upgraded controlling signal.
Fig. 8 B upgrades the synoptic diagram that controlling signal and second is upgraded controlling signal for explanation corresponding to first of the 6th embodiment.
Fig. 9 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of seventh embodiment of the present invention explanation.
Figure 10 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of eighth embodiment of the present invention explanation.
Figure 11 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of ninth embodiment of the present invention explanation.
Figure 12 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of tenth embodiment of the present invention explanation.
Figure 13 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of 11st embodiment of the present invention explanation.
[primary clustering symbol description]
102,302 electrophoresis panels
300 electrophoretic display device (EPD)s
303 a plurality of pixels
304 pixel gray level record cells
306 controlling signal generation units
308 look-up tables
3032 white particles
3034,401,402 black particles
FRCS first upgrades controlling signal
G1-GN, G1-G16, G7, G8, G12, G5 GTG value
The IS image signal
SRCS second upgrades controlling signal
TBLACK, TWHITE, TINITIAL, time
TG1-TGN、TWAIT、TG7、TG8
First period of T1
Second period of T2
The 3rd period of T3
The VCOM common electrode
The VPOS positive voltage
The VNEG negative voltage
VDATA keeps voltage
VG1-VG16 voltage
900 to 912,1000 to 1012, step
1100 to 1114,1200 to 1214,
1300 to 1312
Embodiment
For making purpose of the present invention, technical scheme and advantage clearer, below will the present invention be described in further detail by specific embodiment and relevant drawings.
Please refer to Fig. 3 A, Fig. 3 A is a kind of synoptic diagram that improves the electrophoretic display device (EPD) 300 of ghost of first embodiment of the present invention explanation.Electrophoretic display device (EPD) 300 comprises an electrophoresis panel 302, a pixel gray level record cell 304 and a controlling signal generation unit 306.As shown in Figure 3A, electrophoresis panel 302 comprises a plurality of pixels 303, and each pixel in wherein a plurality of pixels 303 comprises a plurality of white particles and a plurality of black particles.Please refer to Fig. 3 B, Fig. 3 B is for illustrating that a pixel comprises the synoptic diagram of a plurality of white particles 3032 and a plurality of black particles 3034.Shown in Fig. 3 B, because when controlling signal generation unit 306 gives the identical voltage of pixel, the moving direction of the moving direction of white particles 3032 and black particles 3034 is opposite, so the position of white particles 3032 in pixel is with respect to the position of black particles 3034 in pixel.Pixel gray level record cell 304 is in order to write down when electrophoresis panel 302 shows a picture according to an image signal IS GTG value of a plurality of pixels 303 of electrophoresis panel 302; Controlling signal generation unit 306 is a plurality of pixels 303 that are coupled to pixel gray level record cell 304 and electrophoresis panel 302, in order to GTG value according to a plurality of pixels 303 of electrophoresis panel 302, when electrophoresis panel 302 carries out frame updating according to image signal IS, give one first and upgrade controlling signal, and give one to second group of pixel in a plurality of pixels 303 of electrophoresis panel 302 and differ from first and upgrade second of controlling signal and upgrade controlling signal first group of pixel in a plurality of pixels 303 of electrophoresis panel 302.Please refer to Fig. 3 C, Fig. 3 C is the synoptic diagram for the section of explanation electrophoresis panel 302.Shown in Fig. 3 C, electrophoresis panel 302 has 16 GTG value G1-G16, the black particles of first group of pixel G9-G16 is first side near electrophoresis panel 302, and the black particles of second group of pixel G1-G8 system is near second side of electrophoresis panel 302 with respect to first side.But the present invention is not limited to electrophoresis panel 302 has 16 GTG values.Please refer to Fig. 3 D, Fig. 3 D is for the synoptic diagram of a look-up table 308 is described.Shown in Fig. 3 D, look-up table 308 comprises the relation of a plurality of GTG value G1-G16 with the corresponding voltage VG1-VG16 of electrophoresis panel 302.Therefore, controlling signal generation unit 306 can provide the GTG controlling signal to a plurality of pixels 303 according to electrophoresis panel 302 according to image signal IS and look-up table 308.
Please refer to Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 4 B, Fig. 4 C, Fig. 4 D and Fig. 4 E, Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 4 B, Fig. 4 C and Fig. 4 D illustrate when electrophoresis panel 302 carries out frame updating according to image signal IS for the second embodiment of the present invention, controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, give first to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302 and upgrade controlling signal FRCS, and second group of pixel in a plurality of pixels 303 of electrophoresis panel 302 differed from first upgrade the synoptic diagram that second of controlling signal FRCS upgrades controlling signal SRCS, Fig. 4 E upgrades the synoptic diagram that controlling signal FRCS and second upgrades controlling signal SRCS for explanation corresponding to first of second embodiment.Wherein white particles is electronegative, the black particles positively charged.But it is electronegative that the present invention is not limited to white particles, black particles positively charged, but also white particles positively charged, and black particles is electronegative.In addition, because under identical voltage condition, the moving direction of white particles is opposite with the moving direction of black particles, so Fig. 4 A, Fig. 4 B, Fig. 4 C and Fig. 4 D only utilize black particles explanation the present invention.Shown in Fig. 4 A, black particles 401 (GTG value G12) is the black particles that belongs to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302, and black particles 402 (GTG value G5) is the black particles that belongs to second group of pixel in a plurality of pixels 303 of electrophoresis panel 302.Black particles 401 has GTG value G12 and black particles 402 has GTG value G5 but the present invention is not limited to.Therefore, controlling signal generation unit 306 gives first group of pixel first and upgrades controlling signal FRCS according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, and second group of pixel second upgraded controlling signal SRCS.Shown in Fig. 4 A, when the first period T1, first upgrades controlling signal FRCS is a negative voltage VNEG for a positive voltage VPOS and second upgrades controlling signal SRCS, so black particles 401 moves toward the top of electrophoresis panels 302, and black particles 402 moves toward the below of electrophoresis panels 302.Shown in Fig. 4 B, at the second period T2 of the first period T1 that continues, first upgrades controlling signal FRCS keeps voltage VDATA for negative voltage VNEG and second upgrades controlling signal SRCS for one, so black particles 401 moves toward the below of electrophoresis panel 302, and black particles 402 still maintains the below of electrophoresis panel 302.Then, shown in Fig. 4 C, black particles 401 and black particles 402 all are positioned at the below of electrophoresis panel 302.Then, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when controlling signal generation unit 306 shows a new picture according to electrophoresis panel 302 according to image signal IS, and look-up table 308 provide the GTG controlling signal to a plurality of pixels 303.Therefore, shown in Fig. 4 D, black particles 401 and black particles 402 can move to the position of GTG value G7 of electrophoresis panel 302 and the position of GTG value G8 respectively according to corresponding GTG controlling signal.That is black particles 401 moves to the position of the GTG value G7 of electrophoresis panel 302 according to corresponding GTG controlling signal (corresponding to voltage VG7), and black particles 402 moves to the position of the GTG value G8 of electrophoresis panel 302 according to corresponding GTG controlling signal (corresponding to voltage VG8).In addition, shown in Fig. 4 E, the first period T1 and the second period T2 represent the time of frame update, TG7 is the time that is moved to GTG value G7 for black particles 401 by the below of electrophoresis panel 302, and TG8 is the time that is moved to GTG value G8 for black particles 402 by the below of electrophoresis panel 302, wherein because black particles 401 is moved to GTG value G7 by the below of electrophoresis panel 302 distance is shorter by the distance that the below of electrophoresis panel 302 moves to GTG value G8 than black particles 402, so TG8 is greater than TG7.In addition, TWAIT is that the short particle of mobile route waits for that the long particle of mobile route moves to the time of corresponding GTG value, during TWAIT, controlling signal generation unit 306 only provides keeps voltage VDATA, does not need additionally to provide positive voltage VPOS or negative voltage VNEG.
Please refer to Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 5 A, Fig. 5 B, Fig. 4 D and Fig. 5 C, Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 5 A, Fig. 5 B, Fig. 4 D illustrates when electrophoresis panel 302 carries out frame updating according to image signal IS for the third embodiment of the present invention, controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, give first to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302 and upgrade controlling signal FRCS, and second group of pixel in a plurality of pixels 303 of electrophoresis panel 302 differed from first upgrade the synoptic diagram that second of controlling signal FRCS upgrades controlling signal SRCS, Fig. 5 C upgrades the synoptic diagram that controlling signal FRCS and second upgrades controlling signal SRCS for explanation corresponding to first of the 3rd embodiment.Shown in Fig. 4 A, black particles 401 (GTG value G12) is the black particles that belongs to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302, and black particles 402 (GTG value G5) is the black particles that belongs to second group of pixel in a plurality of pixels 303 of electrophoresis panel 302.Therefore, controlling signal generation unit 306 gives first group of pixel first and upgrades controlling signal FRCS according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, and second group of pixel second upgraded controlling signal SRCS.Shown in Fig. 4 A, when the first period T1, first upgrades controlling signal FRCS is negative voltage VNEG for positive voltage VPOS and second upgrades controlling signal SRCS, so black particles 401 moves toward the top of electrophoresis panels 302, and black particles 402 moves toward the below of electrophoresis panels 302.Shown in Fig. 5 A, at the second period T2 of the first period T1 that continues, first upgrades controlling signal FRCS upgrades controlling signal SRCS and is positive voltage VPOS for keeping voltage VDATA and second, so black particles 401 still maintains the top of electrophoresis panel 302, and black particles 402 moves toward the top of electrophoresis panel 302.At this moment, shown in Fig. 5 B, black particles 401 and black particles 402 all are positioned at the top of electrophoresis panel 302.Then, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when controlling signal generation unit 306 shows a new picture according to electrophoresis panel 302 according to image signal IS, and look-up table 308 provide the GTG controlling signal to a plurality of pixels 303.Therefore, shown in Fig. 4 D, black particles 401 and black particles 402 can move to the position of GTG value G7 of electrophoresis panel 302 and the position of GTG value G8 respectively according to corresponding GTG controlling signal.In addition, shown in Fig. 5 C, the first period T1 and the second period T2 represent the time of frame update, TG7 is the time that is moved to GTG value G7 for black particles 401 by the top of electrophoresis panel 302, and TG8 is the time that is moved to GTG value G8 for black particles 402 by the top of electrophoresis panel 302, wherein because black particles 401 is moved to GTG value G7 by the top of electrophoresis panel 302 distance moves to the distance of GTG value G8 than black particles 402 by the top of electrophoresis panel 302, so TG7 is greater than TG8.In addition, TWAIT is that the short particle of mobile route waits for that the long particle of mobile route moves to the time of corresponding GTG value, during TWAIT, controlling signal generation unit 306 only provides keeps voltage VDATA, does not need additionally to provide positive voltage VPOS or negative voltage VNEG.
Please refer to Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 6 B, Fig. 5 B, Fig. 4 D and Fig. 6 C, Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 6 B, Fig. 5 B, Fig. 4 D illustrates when electrophoresis panel 302 carries out frame updating according to image signal IS for the fourth embodiment of the present invention, controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, give first to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302 and upgrade controlling signal FRCS, and second group of pixel in a plurality of pixels 303 of electrophoresis panel 302 differed from first upgrade the synoptic diagram that second of controlling signal FRCS upgrades controlling signal SRCS, Fig. 6 C upgrades the synoptic diagram that controlling signal FRCS and second upgrades controlling signal SRCS for explanation corresponding to first of the 4th embodiment.Shown in Fig. 4 A, black particles 401 (GTG value G12) is the black particles that belongs to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302, and black particles 402 (GTG value G5) is the black particles that belongs to second group of pixel in a plurality of pixels 303 of electrophoresis panel 302.Therefore, controlling signal generation unit 306 gives first group of pixel first and upgrades controlling signal FRCS according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, and second group of pixel second upgraded controlling signal SRCS.Shown in Fig. 4 A, when the first period T1, first upgrades controlling signal FRCS is negative voltage VNEG for positive voltage VPOS and second upgrades controlling signal SRCS, so black particles 401 moves toward the top of electrophoresis panels 302, and black particles 402 moves toward the below of electrophoresis panels 302.As shown in Figure 6A, at the second period T2 of the first period T1 that continues, first upgrades controlling signal FRCS is positive voltage VPOS for negative voltage VNEG and second upgrades controlling signal SRCS, so black particles 401 moves toward the below of electrophoresis panel 302, and black particles 402 moves toward the top of electrophoresis panel 302.Shown in Fig. 6 B, at the 3rd period T3 of the second period T2 that continues, first to upgrade controlling signal FRCS be to be for keeping voltage VDATA for positive voltage VPOS and second upgrades controlling signal SRCS, so black particles 401 moves toward the top of electrophoresis panel 302, and black particles 402 still maintains the top of electrophoresis panel 302.Then, shown in Fig. 5 B, black particles 401 and black particles 402 all are positioned at the top of electrophoresis panel 302.Then, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when controlling signal generation unit 306 shows a new picture according to electrophoresis panel 302 according to image signal IS, and look-up table 308 provide the GTG controlling signal to a plurality of pixels 303.Therefore, shown in Fig. 4 D, black particles 401 and black particles 402 can move to the position of GTG value G7 of electrophoresis panel 302 and the position of GTG value G8 respectively according to corresponding GTG controlling signal.In addition, shown in Fig. 6 C, the first period T1, the second period T2 and the second period T3 represent the time of frame update, TG7 is the time that is moved to GTG value G7 for black particles 401 by the top of electrophoresis panel 302, and TG8 is the time that is moved to GTG value G8 for black particles 402 by the top of electrophoresis panel 302, wherein because black particles 401 is moved to GTG value G7 by the top of electrophoresis panel 302 distance moves to the distance of GTG value G8 than black particles 402 by the below of electrophoresis panel 302, so TG7 is greater than TG8.In addition, TWAIT is that the short particle of mobile route waits for that the long particle of mobile route moves to the time of corresponding GTG value, during TWAIT, controlling signal generation unit 306 only provides keeps voltage VDATA, does not need additionally to provide positive voltage VPOS or negative voltage VNEG.
Please refer to Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 7 A, Fig. 4 C, Fig. 4 D and Fig. 7 B, Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 7 A, Fig. 4 C, Fig. 4 D illustrates when electrophoresis panel 302 carries out frame updating according to image signal IS for the fifth embodiment of the present invention, controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, give first to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302 and upgrade controlling signal FRCS, and second group of pixel in a plurality of pixels 303 of electrophoresis panel 302 differed from first upgrade the synoptic diagram that second of controlling signal FRCS upgrades controlling signal SRCS, Fig. 7 B upgrades the synoptic diagram that controlling signal FRCS and second upgrades controlling signal SRCS for explanation corresponding to first of the 5th embodiment.Shown in Fig. 4 A, black particles 401 (GTG value G12) is the black particles that belongs to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302, and black particles 402 (GTG value G5) is the black particles that belongs to second group of pixel in a plurality of pixels 303 of electrophoresis panel 302.Therefore, controlling signal generation unit 306 gives first group of pixel first and upgrades controlling signal FRCS according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, and second group of pixel second upgraded controlling signal SRCS.Shown in Fig. 4 A, when the first period T1, first upgrades controlling signal FRCS is negative voltage VNEG for positive voltage VPOS and second upgrades controlling signal SRCS, so black particles 401 moves toward the top of electrophoresis panels 302, and black particles 402 moves toward the below of electrophoresis panels 302.As shown in Figure 6A, at the second period T2 of the first period T1 that continues, first upgrades controlling signal FRCS is positive voltage VPOS for negative voltage VNEG and second upgrades controlling signal SRCS, so black particles 401 moves toward the below of electrophoresis panel 302, and black particles 402 moves toward the top of electrophoresis panel 302.Shown in Fig. 7 A, at the 3rd period T3 of the second period T2 that continues, first upgrades controlling signal FRCS upgrades controlling signal SRCS and is negative voltage VNEG for keeping voltage VDATA and second, so black particles 401 still maintains the below of electrophoresis panel 302, and black particles 402 moves toward the below of electrophoresis panel 302.Then, shown in Fig. 4 C, black particles 401 and black particles 402 all are positioned at the below of electrophoresis panel 302.At this moment, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when controlling signal generation unit 306 shows a new picture according to electrophoresis panel 302 according to image signal IS, and look-up table 308 provide the GTG controlling signal to a plurality of pixels 303.Therefore, shown in Fig. 4 D, black particles 401 and black particles 402 can move to the position of GTG value G7 of electrophoresis panel 302 and the position of GTG value G8 respectively according to corresponding GTG controlling signal.In addition, shown in Fig. 7 B, the first period T1, the second period T2 and the second period T3 represent the time of frame update, TG7 is the time that is moved to GTG value G7 for black particles 401 by the below of electrophoresis panel 302, and TG8 is the time that is moved to GTG value G8 for black particles 402 by the below of electrophoresis panel 302, wherein because black particles 401 is moved to GTG value G7 by the below of electrophoresis panel 302 distance is shorter by the distance that the below of electrophoresis panel 302 moves to GTG value G8 than black particles 402, so TG8 is greater than TG7.In addition, TWAIT is that the short particle of mobile route waits for that the long particle of mobile route moves to the time of corresponding GTG value, during TWAIT, controlling signal generation unit 306 only provides keeps voltage VDATA, does not need additionally to provide positive voltage VPOS or negative voltage VNEG.
Please refer to Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 8 A, Fig. 4 D and Fig. 8 B, Fig. 3 A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 6 A, Fig. 8 A, Fig. 4 D illustrates when electrophoresis panel 302 carries out frame updating according to image signal IS for the sixth embodiment of the present invention, controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, give first to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302 and upgrade controlling signal FRCS, and second group of pixel in a plurality of pixels 303 of electrophoresis panel 302 differed from first upgrade the synoptic diagram that second of controlling signal FRCS upgrades controlling signal SRCS, Fig. 8 B upgrades the synoptic diagram that controlling signal FRCS and second upgrades controlling signal SRCS for explanation corresponding to first of the 6th embodiment.Shown in Fig. 4 A, black particles 401 (GTG value G12) is the black particles that belongs to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302, and black particles 402 (GTG value G5) is the black particles that belongs to second group of pixel in a plurality of pixels 303 of electrophoresis panel 302.Therefore, controlling signal generation unit 306 gives first group of pixel first and upgrades controlling signal FRCS according to the GTG value of a plurality of pixels 303 of electrophoresis panel 302, and second group of pixel second upgraded controlling signal SRCS.Shown in Fig. 4 A, when the first period T1, first upgrades controlling signal FRCS is negative voltage VNEG for positive voltage VPOS and second upgrades controlling signal SRCS, so black particles 401 moves toward the top of electrophoresis panels 302, and black particles 402 moves toward the below of electrophoresis panels 302.As shown in Figure 6A, at the second period T2 of the first period T1 that continues, first upgrades controlling signal FRCS is positive voltage VPOS for negative voltage VNEG and second upgrades controlling signal SRCS, so black particles 401 moves toward the below of electrophoresis panel 302, and black particles 402 moves toward the top of electrophoresis panel 302.Then, shown in Fig. 8 A, black particles 401 is positioned at the below of electrophoresis panel 302 and the top that black particles 402 is positioned at electrophoresis panel 302.At this moment, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when controlling signal generation unit 306 shows a new picture according to electrophoresis panel 302 according to image signal IS, and look-up table 308 provide the GTG controlling signal to a plurality of pixels 303.Therefore, shown in Fig. 4 D, black particles 401 and black particles 402 can move to the position of GTG value G7 of electrophoresis panel 302 and the position of GTG value G8 respectively according to corresponding GTG controlling signal.In addition, shown in Fig. 8 B, the first period T1 and the second period T2 represent the time of frame update, TG7 is the time that is moved to GTG value G7 for black particles 401 by the below of electrophoresis panel 302, and TG8 is the time that is moved to GTG value G8 for black particles 402 by the top of electrophoresis panel 302, wherein because black particles 401 is moved to GTG value G7 by the below of electrophoresis panel 302 distance is shorter by the distance that the top of electrophoresis panel 302 moves to GTG value G8 than black particles 402, so TG8 is greater than TG7.In addition, TWAIT is that the short particle of mobile route waits for that the long particle of mobile route moves to the time of corresponding GTG value, during TWAIT, controlling signal generation unit 306 only provides keeps voltage VDATA, does not need additionally to provide positive voltage VPOS or negative voltage VNEG.
Please refer to Fig. 9, Fig. 9 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of seventh embodiment of the present invention explanation.The menu renewal method of Fig. 9 is electrophoretic display device (EPD) 300 explanations that utilize Fig. 3 A, and detailed step is as follows:
Step 900: beginning;
Step 902: pixel gray level record cell 304 record is when electrophoresis panel 302 during according to image signal IS display frame, the GTG value of a plurality of pixels 303 of electrophoresis panel 302;
Step 904: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, gives first group of pixel positive voltage VPOS in a plurality of pixels 303 in the first period T1, and gives second group of pixel negative voltage VNEG in a plurality of pixels 303;
Step 906: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, give first group of pixel negative voltage VNEG in a plurality of pixels 303 in the second period T2, and the second group of pixel that gives in a plurality of pixels 303 kept voltage VDATA;
Step 908: after electrophoresis panel 302 carries out frame updating, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when showing a new picture according to image signal IS according to electrophoresis panel 302, and look-up table 308, provide corresponding GTG controlling signal to a plurality of pixels 303;
Step 910: controlling signal generation unit 306 is according to corresponding GTG controlling signal, and the GTG value of a plurality of pixels 303 of electrophoresis panel 302 is adjusted to corresponding to new picture;
Step 912: finish.
Please refer to figure 3A, Fig. 3 C, Fig. 3 D, Fig. 4 A, Fig. 4 B, Fig. 4 C and Fig. 4 D.In step 904 (Fig. 4 A), black particles 401 (GTG value G12) is the black particles that belongs to first group of pixel in a plurality of pixels 303 of electrophoresis panel 302, and black particles 402 (GTG value G5) is the black particles that belongs to second group of pixel in a plurality of pixels 303 of electrophoresis panel 302.Therefore, give first group of pixel positive voltage VPOS in a plurality of pixels 303, and give second group of pixel negative voltage VNEG in a plurality of pixels 303 in the first period T1.Black particles 401 moves toward the top of electrophoresis panel 302 according to positive voltage VPOS, and black particles 402 moves toward the below of electrophoresis panel 302 according to negative voltage VNEG.In step 906 (Fig. 4 B), because controlling signal generation unit 306 gives first group of pixel negative voltage VNEG in a plurality of pixels 303 in the second period T2, and the second group of pixel that gives in a plurality of pixels 303 kept voltage VDATA, so black particles 401 moves toward the below of electrophoresis panel 302 according to negative voltage VNEG, and black particles 402 is according to keeping the below that voltage VDATA maintains electrophoresis panel 302.In step 908 (4C figure), black particles 401 and black particles 402 all are positioned at the below of electrophoresis panel 302.Then, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when controlling signal generation unit 306 shows a new picture according to electrophoresis panel 302 according to image signal IS, and look-up table 308 provide the GTG controlling signal to a plurality of pixels 303.In step 910, controlling signal generation unit 306 is according to corresponding GTG controlling signal, and the GTG value of a plurality of pixels 303 of electrophoresis panel 302 is adjusted to corresponding to new picture.Therefore, shown in Fig. 4 D, black particles 401 and black particles 402 can move to the position of GTG value G7 of electrophoresis panel 302 and the position of GTG value G8 respectively according to corresponding GTG controlling signal.
Please refer to Figure 10, Figure 10 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of eighth embodiment of the present invention explanation.The menu renewal method of Figure 10 is electrophoretic display device (EPD) 300 explanations that utilize Fig. 3 A, and detailed step is as follows:
Step 1000: beginning;
Step 1002: pixel gray level record cell 304 record is when electrophoresis panel 302 during according to image signal IS display frame, the GTG value of a plurality of pixels 303 of electrophoresis panel 302;
Step 1004: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, gives first group of pixel positive voltage VPOS in a plurality of pixels 303 in the first period T1, and gives second group of pixel negative voltage VNEG in a plurality of pixels 303;
Step 1006: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, keep voltage VDATA in first group of pixel that the second period T2 gives in a plurality of pixels 303, and give second group of pixel positive voltage VPOS in a plurality of pixels 303;
Step 1008: after electrophoresis panel 302 carries out frame updating, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when showing a new picture according to image signal IS according to electrophoresis panel 302, and look-up table 308, provide corresponding GTG controlling signal to a plurality of pixels 303;
Step 1010: controlling signal generation unit 306 is according to corresponding GTG controlling signal, and the GTG value of a plurality of pixels 303 of electrophoresis panel 302 is adjusted to corresponding to new picture;
Step 1012: finish.
Please refer to Fig. 5 A and Fig. 5 B.The difference of the 8th embodiment and the 7th embodiment is in step 1006 (5A figure), because controlling signal generation unit 306 is kept voltage VDATA in first group of pixel that the second period T2 gives in a plurality of pixels 303, and give second group of pixel positive voltage VPOS in a plurality of pixels 303, so black particles 401 bases are kept the top that voltage VDATA maintains electrophoresis panel 302, and black particles 402 moves toward the top of electrophoresis panel 302 according to positive voltage VPOS.In step 1008 (Fig. 5 B), black particles 401 and black particles 402 all are positioned at the top of electrophoresis panel 302.Then, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when controlling signal generation unit 306 shows new picture according to electrophoresis panel 302 according to image signal IS, and look-up table 308 provide the GTG controlling signal to a plurality of pixels 303.In addition, all the other principle of operation of the 8th embodiment are all identical with the 7th embodiment, do not repeat them here.
Please refer to Figure 11, Figure 11 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of ninth embodiment of the present invention explanation.The menu renewal method of Figure 11 is electrophoretic display device (EPD) 300 explanations that utilize Fig. 3 A, and detailed step is as follows:
Step 1100: beginning;
Step 1102: pixel gray level record cell 304 record is when electrophoresis panel 302 during according to image signal IS display frame, the GTG value of a plurality of pixels 303 of electrophoresis panel 302;
Step 1104: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, gives first group of pixel positive voltage VPOS in a plurality of pixels 303 in the first period T1, and gives second group of pixel negative voltage VNEG in a plurality of pixels 303;
Step 1106: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, gives first group of pixel negative voltage VNEG in a plurality of pixels 303 in the second period T2, and gives second group of pixel positive voltage VPOS in a plurality of pixels 303;
Step 1108: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, give first group of pixel positive voltage VPOS in a plurality of pixels 303 in the 3rd period T3, and the second group of pixel that gives in a plurality of pixels 303 kept voltage VDATA;
Step 1110: after electrophoresis panel 302 carries out frame updating, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when showing a new picture according to image signal IS according to electrophoresis panel 302, and look-up table 308, provide corresponding GTG controlling signal to a plurality of pixels 303;
Step 1112: controlling signal generation unit 306 is according to corresponding GTG controlling signal, and the GTG value of a plurality of pixels 303 of electrophoresis panel 302 is adjusted to corresponding to new picture;
Step 1114: finish.
Please refer to Fig. 6 A and Fig. 6 B.The difference of the 9th embodiment and the 7th embodiment is in step 1106 (Fig. 6 A), because controlling signal generation unit 306 gives first group of pixel negative voltage VNEG in a plurality of pixels 303 in the second period T2, and give second group of pixel positive voltage VPOS in a plurality of pixels 303, so black particles 401 moves toward the below of electrophoresis panel 302 according to negative voltage VNEG, and black particles 402 moves toward the top of electrophoresis panel 302 according to positive voltage VPOS; In step 1108 (Fig. 6 B), because controlling signal generation unit 306 gives first group of pixel positive voltage VPOS in a plurality of pixels 303 in the 3rd period T3, and the second group of pixel that gives in a plurality of pixels 303 kept voltage VDATA, so black particles 401 moves toward the top of electrophoresis panel 302 according to positive voltage VPOS, and black particles 402 is according to keeping the top that voltage VDATA maintains electrophoresis panel 302.In addition, all the other principle of operation of the 9th embodiment are all identical with the 7th embodiment, do not repeat them here.
Please refer to Figure 12, Figure 12 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of tenth embodiment of the present invention explanation.The menu renewal method of Figure 12 is electrophoretic display device (EPD) 300 explanations that utilize Fig. 3 A, and detailed step is as follows:
Step 1200: beginning;
Step 1202: pixel gray level record cell 304 record is when electrophoresis panel 302 during according to image signal IS display frame, the GTG value of a plurality of pixels 303 of electrophoresis panel 302;
Step 1204: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, gives first group of pixel positive voltage VPOS in a plurality of pixels 303 in the first period T1, and gives second group of pixel negative voltage VNEG in a plurality of pixels 303;
Step 1206: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, gives first group of pixel negative voltage VNEG in a plurality of pixels 303 in the second period T2, and gives second group of pixel positive voltage VPOS in a plurality of pixels 303;
Step 1208: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, keep voltage VDATA in first group of pixel that the 3rd period T3 gives in a plurality of pixels 303, and give second group of pixel negative voltage VNEG in a plurality of pixels 303;
Step 1210: after electrophoresis panel 302 carries out frame updating, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when showing a new picture according to image signal IS according to electrophoresis panel 302, and look-up table 308, provide corresponding GTG controlling signal to a plurality of pixels 303;
Step 1212: controlling signal generation unit 306 is according to corresponding GTG controlling signal, and the GTG value of a plurality of pixels 303 of electrophoresis panel 302 is adjusted to corresponding to new picture;
Step 1214: finish.
Please refer to Fig. 7 A.The difference of the tenth embodiment and the 9th embodiment is in step 1208 (Fig. 7 A), because controlling signal generation unit 306 is kept voltage VDATA in first group of pixel that the 3rd period T3 gives in a plurality of pixels 303, and give second group of big in a plurality of pixels 303 pixel negative voltage VNEG, so black particles 401 bases are kept the below that voltage VDATA maintains electrophoresis panel 302, and black particles 402 moves toward the below of electrophoresis panels 302.In addition, all the other principle of operation of the tenth embodiment are all identical with the 9th embodiment, do not repeat them here.
Please refer to Figure 13, Figure 13 is a kind of process flow diagram that improves the menu renewal method of electrophoretic display device (EPD) ghost of 11st embodiment of the present invention explanation.The menu renewal method system of Figure 13 utilizes electrophoretic display device (EPD) 300 explanations of Fig. 3 A, and detailed step is as follows:
Step 1300: beginning;
Step 1302: pixel gray level record cell 304 record is when electrophoresis panel 302 during according to image signal IS display frame, the GTG value of a plurality of pixels 303 of electrophoresis panel 302;
Step 1304: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, gives first group of pixel positive voltage VPOS in a plurality of pixels 303 in the first period T1, and gives second group of pixel negative voltage VNEG in a plurality of pixels 303;
Step 1306: controlling signal generation unit 306 is according to the GTG value of a plurality of pixels 303, gives first group of pixel negative voltage VNEG in a plurality of pixels 303 in the second period T2, and gives second group of pixel positive voltage VPOS in a plurality of pixels 303;
Step 1308: after electrophoresis panel 302 carries out frame updating, the GTG value of a plurality of pixels 303 of electrophoresis panel 302 when showing a new picture according to image signal IS according to electrophoresis panel 302, and look-up table 308, provide corresponding GTG controlling signal to a plurality of pixels 303;
Step 1310: controlling signal generation unit 306 is according to corresponding GTG controlling signal, and the GTG value of a plurality of pixels 303 of electrophoresis panel 302 is adjusted to corresponding to new picture;
Step 1312: finish.
Please refer to Fig. 6 A and Fig. 8 A.The difference of the 11 embodiment and the 7th embodiment is in step 1306 (Fig. 6 A), controlling signal generation unit 306 lies in the second period T2 and gives first group of pixel negative voltage VNEG in a plurality of pixels 303, and give second group of pixel positive voltage VPOS in a plurality of pixels 303, so black particles 401 moves toward the below of electrophoresis panel 302 according to negative voltage VNEG, and black particles 402 moves toward the top of electrophoresis panel 302 according to positive voltage VPOS.At this moment, shown in Fig. 8 A, black particles 401 is that the below and the black particles 402 that are positioned at electrophoresis panel 302 are the tops that are positioned at electrophoresis panel 302.In addition, all the other principle of operation of the 11 embodiment are all identical with the 7th embodiment, do not repeat them here.
When in sum, the advantage of electrophoretic display device (EPD) that improves ghost provided by the present invention and menu renewal method thereof is frame update is the particle (a plurality of black particles and a plurality of white particles) that comes each pixel of disturbance according to the GTG value of each pixel.Because the mobile route of the particle that a plurality of pixel comprised not is all earlier up more down or all down more up, so the strong flickering of electrophoresis panel when the present invention can improve frame update.In addition, the present invention is the mobile route that decides the particle of each pixel according to the GTG value of each pixel, therefore not only can shorten the mobile route of the particle of each pixel, and when the short particle of mobile route when waiting for the long particle of mobile route, do not need to supply with extra voltage and give mobile route short particle.So, compared to prior art, the present invention can reduce the time of frame update and the consumption that reduces power.
The above only is the present invention's preferred embodiment, and all equalizations of being done according to the present patent application claim change and modify, and all should belong to covering scope of the present invention.
Claims (12)
1. the electrophoretic display device (EPD) that can improve ghost is characterized in that, comprises:
One electrophoresis panel comprises a plurality of pixels;
One pixel gray level record cell is in order to write down when this electrophoresis panel shows a picture according to an image signal GTG value of these a plurality of pixels; And
One controlling signal generation unit, be coupled to this pixel gray level record cell and these a plurality of pixels, in order to GTG value according to these a plurality of pixels, first group of pixel in a plurality of pixels gives one first and upgrades controlling signal to this when this electrophoresis panel carries out frame updating according to this image signal, and gives one to second group of pixel in these a plurality of pixels and differ from this and first upgrade second of controlling signal and upgrade controlling signal.
2. electrophoretic display device (EPD) according to claim 1, it is characterized in that, wherein after this electrophoresis panel carries out frame updating, the GTG value of these a plurality of pixels when this controlling signal generation unit shows a new picture according to this electrophoresis panel according to this image signal, and a look-up table, provide the GTG controlling signal to these a plurality of pixels.
3. electrophoretic display device (EPD) according to claim 1 is characterized in that, wherein this look-up table comprises a plurality of GTG values of this electrophoresis panel and the relation of corresponding voltage.
4. electrophoretic display device (EPD) according to claim 1 is characterized in that, wherein each pixel in these a plurality of pixels comprises a plurality of white particles and a plurality of black particles.
5. electrophoretic display device (EPD) according to claim 4, it is characterized in that, wherein the black particles of this first group of pixel is first side near this electrophoresis panel, and the black particles of this second group of pixel is near second side of this electrophoresis panel with respect to this first side.
6. the menu renewal method that can improve the electrophoretic display device (EPD) ghost is characterized in that, comprises:
Write down when an electrophoresis panel shows a picture according to an image signal GTG value of a plurality of pixels;
GTG value according to these a plurality of pixels, first group of pixel in a plurality of pixels gives one first and upgrades controlling signal to this when this electrophoresis panel carries out frame updating according to this image signal, and gives one to second group of pixel in these a plurality of pixels and differ from this and first upgrade second of controlling signal and upgrade controlling signal; And
After this electrophoresis panel carries out frame updating, the GTG value of these a plurality of pixels when showing a new picture according to this image signal according to this electrophoresis panel, and a look-up table, provide the GTG controlling signal to these a plurality of pixels, be adjusted to corresponding to this new picture with GTG value that will these a plurality of pixels.
7. menu renewal method according to claim 6 is characterized in that, wherein this first renewal controlling signal is to be positive voltage in one first period, and this second renewal controlling signal is to be negative voltage in this first period.
8. menu renewal method according to claim 7 is characterized in that, wherein this first renewal controlling signal is to be negative voltage in one second period of this first period of continuing, and this second renewal controlling signal is for keeping voltage in this second period.
9. menu renewal method according to claim 7 is characterized in that, wherein this first to upgrade controlling signal be for keeping voltage in one second period of this first period of continuing, second to upgrade controlling signal be to be positive voltage in this second period for this.
10. menu renewal method according to claim 7 is characterized in that, wherein this first renewal controlling signal is to be negative voltage in one second period of this first period of continuing, and this second renewal controlling signal is to be positive voltage in this second period.
11. menu renewal method according to claim 10 is characterized in that, wherein this first renewal controlling signal is to be positive voltage in one the 3rd period of this second period of continuing, and this second renewal controlling signal is for keeping voltage in the 3rd period.
12. menu renewal method according to claim 10 is characterized in that, wherein this first to upgrade controlling signal be for keeping voltage in one the 3rd period of this second period of continuing, second to upgrade controlling signal be to be negative voltage in the 3rd period for this.
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| CN102097042A (en) * | 2009-12-10 | 2011-06-15 | 元太科技工业股份有限公司 | Method and device for placing advertisement into electronic book and displaying advertisement |
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