CN104867458A - Electrophoretic display device and method of driving the same - Google Patents
Electrophoretic display device and method of driving the same Download PDFInfo
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- CN104867458A CN104867458A CN201410151510.9A CN201410151510A CN104867458A CN 104867458 A CN104867458 A CN 104867458A CN 201410151510 A CN201410151510 A CN 201410151510A CN 104867458 A CN104867458 A CN 104867458A
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- 238000000034 method Methods 0.000 title claims abstract description 30
- 239000012769 display material Substances 0.000 claims description 14
- 238000001962 electrophoresis Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 13
- 239000000758 substrate Substances 0.000 claims description 13
- 230000008878 coupling Effects 0.000 abstract description 6
- 238000010168 coupling process Methods 0.000 abstract description 6
- 238000005859 coupling reaction Methods 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 14
- 239000002245 particle Substances 0.000 description 12
- 101000608734 Helianthus annuus 11 kDa late embryogenesis abundant protein Proteins 0.000 description 8
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000005684 electric field Effects 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 239000003094 microcapsule Substances 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- JYMITAMFTJDTAE-UHFFFAOYSA-N aluminum zinc oxygen(2-) Chemical compound [O-2].[Al+3].[Zn+2] JYMITAMFTJDTAE-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- HPNSNYBUADCFDR-UHFFFAOYSA-N chromafenozide Chemical compound CC1=CC(C)=CC(C(=O)N(NC(=O)C=2C(=C3CCCOC3=CC=2)C)C(C)(C)C)=C1 HPNSNYBUADCFDR-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
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- YVTHLONGBIQYBO-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O--].[Zn++].[In+3] YVTHLONGBIQYBO-UHFFFAOYSA-N 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical compound [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
Abstract
The invention provides an electrophoretic display device and a driving method thereof. The electrophoretic display device comprises a display module and a driving module. The display module is provided with more than one scanning line and more than one data line, the scanning line and the data line define more than one pixel, and the number of the scanning lines is n. The driving module is electrically connected with the pixels through the scanning lines and the data lines, and outputs a scanning signal to drive the display module. The scanning signal is sequentially input to the (b + ks) th scanning line from the (1+ ks) th scanning line and input for c times repeatedly, k is 0 or a positive integer, n, b, c and s are positive integers respectively, s is less than or equal to 1 and less than n, k is less than or equal to 0 and less than n, b is greater than 1 and less than n, and when the (1+ ks) th scanning line and the (b + ks) th scanning line are sequentially input for c times repeatedly by the scanning signal, k is added with 1. The electrophoretic display device and the driving method thereof can improve the condition of poor display quality caused by coupling interference between two adjacent pixel electrodes.
Description
Technical field
The present invention about a kind of display device and driving method thereof, especially in regard to a kind of electrophoretic display apparatus and driving method thereof.
Background technology
Non-volatilization display device (Non-Volatile Type Display Apparatus), refer to that there is bistable state (Bi-Stable States) or multistable display device, when not supplying power supply, non-volatilization display device still can maintain a wherein stable state at least time of hundreds of milliseconds, therefore, compared with volatile-type display device, non-volatilization display device comparatively can the amount of saving energy.
For electrophoresis (electrophoretic) display device, existing a kind of electrophoresis display device mainly comprises a display module and a driver module.Driver module can produce drive singal and be sent to display module, to drive display module display frame.Display module generally comprises upper and lower substrate, a pixel electrode layer, community electrode layer, an electrophoresis material and an adhesion layer.Wherein, common electrode layer is arranged on upper substrate, and pixel electrode layer arranges infrabasal plate, and sticks together by conductive adhesion layer on infrabasal plate by non-volatile type display material, and electrophoresis material is interposed between pixel electrode layer and common electrode layer.When drive singal drives display module display frame, the charged particle being ordered about electrophoresis material by the electric field produced between pixel electrode layer and common electrode layer moves to location, with corresponding show image picture.
In the prior art, in order to reaction velocity when making the display frame of electrophoresis display device is very fast, generally can controls the resistance value of adhesion layer, make it more low better, when pixel is driven the electric field that produces comparatively large and rotating band charged particle can arrive location rapidly, with correct show image.But, when adhesion layer resistance value more hour, relatively, the data voltage of input adjacent pixel electrodes also easily produces and intercouples, disturbs, and then affect the current potential of pixel electrode and charged particle cannot correctly be moved, the display quality of electrophoretic display apparatus is also declined relatively.
Therefore, how to provide a kind of electrophoretic display apparatus and driving method thereof, situation not good because of the display quality caused by signal coupling interference between two adjacent pixel electrodes can be improved, become one of important topic.
Summary of the invention
Because above-mentioned problem, the object of this invention is to provide a kind of electrophoretic display apparatus and the driving method thereof that improve situation not good because of the display quality caused by coupled interference between two adjacent pixel electrodes.
For reaching above-mentioned purpose, comprise a display module and a driver module according to a kind of electrophoretic display apparatus of the present invention.Display module has more than a sweep trace and more than a data line, and described sweep trace and described data line definition go out more than one pixel, and the quantity of described sweep trace is n bar.Driver module is electrically connected by described sweep trace and described data line and described pixel, and driver module exports one scan signal and drives display module.Wherein, sweep signal is sequentially input to (b+ks) article sweep trace by (1+ks) article sweep trace and repeats input c time, k is 0 or positive integer, n, b, c and s are respectively positive integer, 1≤s < n, 0≤k < n, 1 < b < n, and after (1+ks) article sweep trace is sequentially repeated to input c time to (b+ks) article sweep trace by sweep signal, then k is added 1.
For reaching above-mentioned purpose, according to the driving method of a kind of electrophoretic display apparatus of the present invention, electrophoretic display apparatus has a display module and a driver module, display module has more than a sweep trace and more than a data line, and described sweep trace and described data line definition go out more than one pixel, the quantity of described sweep trace is n bar, driver module is electrically connected by described sweep trace and described data line and described pixel, driving method comprises by driver module output one scan signal driving display module, wherein sweep signal is sequentially input to (b+ks) article sweep trace by (1+ks) article sweep trace and repeats input c time, k is 0 or positive integer, n, b, c and s is respectively positive integer, 1≤s < n, 0≤k < n, 1 < b < n, and after (1+ks) article sweep trace is sequentially repeated to input c time to (b+ks) article sweep trace by sweep signal, then k is added 1.
In one embodiment, s=b.
In one embodiment, s < b.
In one embodiment, the cycle of sweep signal is 1 ÷ (60 × n/b) second.
In one embodiment, display module also has a non-volatile type display material, and non-volatile type display material comprises an electrophoresis material.
In one embodiment, display module also has a substrate and an adhesion layer, and described pixel correspondence has more than one pixel electrode, and described pixel electrode is arranged on substrate, and adhesion layer is arranged between non-volatile type display material and described pixel electrode.
In one embodiment, when sweep signal inputs one of them of described sweep trace, driver module also exports a data-signal, and inputs corresponding described pixel electrode by described data line.
In one embodiment, display module also has more than first virtual scan line, as k=0, before sweep signal input Article 1 sweep trace, after sweep signal first sequentially inputs described first virtual scan line, be more sequentially input to s article of sweep trace by Article 1 sweep trace.
In one embodiment, display module also has more than second virtual scan line, and as (b+ks) > n, sweep signal is after input n-th sweep trace, and sweep signal sequentially inputs described second virtual scan line again.
In one embodiment, the quantity of described first virtual scan line or described second virtual scan line is (b-s).
From the above, because of in electrophoretic display apparatus of the present invention and driving method thereof, export one scan signal by driver module and drive display module.Wherein, sweep signal is sequentially input to (b+ks) article sweep trace by (1+ks) article sweep trace and repeats input c time, k is 0 or positive integer, n, b, c and s are respectively positive integer, 1≤s < n, 0≤k < n, 1 < b < n, and after (1+ks) article sweep trace is sequentially repeated to input c time to (b+ks) article sweep trace by sweep signal, then k is added 1.Like this, compared with prior art, although adjacent pixel electrodes still can interfere with each other, but the data voltage of data line can input the pixel electrode of described pixel within a short period of time, and data voltage can be transfused in a frame time for several times, therefore make the current potential of pixel electrode can be easier to be maintained at certain value and electrophoresis material can be driven to reach location with correct show image.Therefore, electrophoretic display apparatus of the present invention and driving method thereof can improve situation not good because of the display quality caused by signal coupling interference between two adjacent pixel electrodes.
Accompanying drawing explanation
Figure 1A is the schematic diagram of a kind of electrophoretic display apparatus of first embodiment of the invention.
Figure 1B is in Figure 1A, the diagrammatic cross-section of straight line A-A.
Fig. 2 A is in the electrophoretic display apparatus of the first embodiment, the subregion schematic diagram of the described sweep trace of display module.
Fig. 2 B is the waveform schematic diagram of one scan signal.
Fig. 2 C is the current potential schematic diagram of the pixel electrode of the first embodiment.
Fig. 3 A is the subregion schematic diagram of the described sweep trace of the display module of second embodiment of the invention.
Fig. 3 B is the current potential schematic diagram of the pixel electrode of the second embodiment.
Fig. 4 A is the driving method schematic diagram of a kind of electrophoretic display apparatus of present pre-ferred embodiments.
Fig. 4 B is another driving method schematic diagram of a kind of electrophoretic display apparatus of present pre-ferred embodiments.
Embodiment
Hereinafter with reference to relevant drawings, the electrophoretic display apparatus according to present pre-ferred embodiments and driving method thereof are described, wherein identical element is illustrated with identical reference marks.
Please respectively with reference to shown in Figure 1A and Figure 1B, wherein, Figure 1A is the schematic diagram of a kind of electrophoretic display apparatus 1 of first embodiment of the invention, and Figure 1B is in Figure 1A, the diagrammatic cross-section of straight line A-A.
Electrophoretic display apparatus 1 comprises display module 11 and a driver module 12.
Display module 11 has a display panel DP, more than a sweep trace S and more than a data line D, described sweep trace S and described data line D defines the more than one pixel P on display panel DP, and each pixel P correspondence has a pixel electrode 113.Here, the quantity of described sweep trace S is such as n bar.
The type of drive of driver module 12 can be active matric (Active Matrix) and drives or passive matrix type (Passive Matrix) driving.Here, for active matrix driving.Wherein, driver module 12 is electrically connected by the described pixel P of described sweep trace S and described data line D and display panel DP.In the present embodiment, driver module 12 comprises scan driving circuit 121 and a data drive circuit 122, the exportable one scan signal of scan drive circuit 121, and the exportable data-signal of data drive circuit 122.When the sweep signal that scan drive circuit 121 exports makes described sweep trace S open respectively, data drive circuit 122 is by the data-signal of corresponding each row pixel P, by described data line D, pixel voltage is sent to the pixel electrode 113 of each pixel P, makes electrophoretic display apparatus 1 capable of displaying image.
As shown in Figure 1B, display panel DP also can have infrabasal plate 111, adhesion layer 112, non-volatile type display material 114, upper substrate 115 and a community electrode layer 116.
Infrabasal plate 111 is relative with upper substrate 115 and establish, and described pixel electrode 113 is arranged on infrabasal plate 111, and is electrically connected with data drive circuit 122 (scheming not show).Wherein, the material of infrabasal plate 111 can be resin, pottery or glass, here for glass.In addition, upper substrate 115 can be flexible (flexible) or inflexibility, and its material can be resin, pottery or glass.Here, the material of upper substrate 115 can be identical with the material of infrabasal plate 111 or not identical.In addition, non-volatile type display material 114 is between upper substrate 115 and infrabasal plate 111.The non-volatile type display material 114 of the present embodiment comprises an electrophoresis material, and is such as that more than one charged particle (Charged Particle) C is suspended in a dielectric solution L.In the present embodiment, display panel DP also can have an accommodating structure 117, and accommodating structure 117 can have more than one micro-cup (micro-cups) or more than one microcapsules (microcapsules).The accommodating structure 117 of the present embodiment is that to have more than one micro-cup be example, and described charged particle C is suspended in dielectric solution L, and described charged particle C and dielectric solution L is all contained in described micro-cup.
Common electrode layer 116 is arranged between non-volatile type display material 114 and upper substrate 115, and the described pixel electrode 113 of infrabasal plate 111 is arranged relatively.Wherein, common electrode layer 116 such as can be respectively indium tin oxide (ITO), indium-zinc oxide (IZO), aluminium zinc oxide (AZO), gallium zinc oxide (GZO) or zinc paste (ZnO) etc. with the material of pixel electrode 113, is not limited to this.In addition, adhesion layer 112 is arranged between non-volatile type display material 114 and described pixel electrode 113, adhesion layer 112 can bind be equipped with non-volatile type display material 114 accommodating structure 117 and described pixel electrode 113 on infrabasal plate 111.Wherein, the resistance value of adhesion layer 112 is quite low, when pixel is driven the electric field that produces comparatively large and can rotating band charged particle C rapidly.
Therefore, when controlling described sweep trace S unlatching when the sweep signal that scan drive circuit 121 exports, the data-signal that data drive circuit 122 correspondence exports can make to have a voltage difference between common electrode layer 116 and pixel electrode 113, make charged particle C can be ordered about mobile and reflection environment light, and then present the color of charged particle C or dielectric solution L and show image picture.
Below, please refer to how relevant drawings drives display module 11 described pixel P with the sweep signal of driver module 12 output that the first embodiment is described.
Please respectively with reference to shown in Fig. 2 A to Fig. 2 C, wherein, Fig. 2 A is in the electrophoretic display apparatus 1 of the first embodiment, the subregion schematic diagram of the described sweep trace S of display module 11, Fig. 2 B is the waveform schematic diagram of one scan signal, and Fig. 2 C is the current potential schematic diagram of the pixel electrode 113 of the first embodiment.
The sweep signal that the scan drive circuit 121 of the driver module 12 of the present embodiment exports sequentially is input to (b+ks) article sweep trace by (1+ks) article sweep trace and repeats input c time, wherein, k is 0 or positive integer, n, b, c and s is respectively positive integer, and 1≤s < n, 0≤k < n, 1 < b < n, and after (1+ks) article sweep trace is sequentially repeated to input c time to (b+ks) article sweep trace by sweep signal, then k is added 1, the action of multiple scanning more afterwards.Here, the value of k by 0, and is sequentially 1,2,3 ... etc. positive integer.
For example, as shown in Figure 2 A, the quantity n of sweep trace S be such as 16 (Article 1 represents with S1 ... article 16, represent with S16), and be connected to display panel DP respectively.Wherein, described sweep trace S is divided into more than one district (such as 4th district), and such as there are 4 sweep traces (b=4) in each district, and is respectively S1 ~ S4, S5 ~ S8, S9 ~ S12 and S13 ~ S16.In addition, in the present embodiment, c is such as 2, represents that sweep signal repeats to input twice, this district.In addition, s is not more than b, i.e. s≤b.Here, s is such as 4, after representing a certain end of extent scanning, toward moving down 4 sweep traces, therefore, and s=b=4.But, in other embodiments, s and b can be unequal, such as s=3, after representing a certain end of extent scanning, only toward moving down 3 sweep traces.Therefore, the quantity just citing of said n, b, c and s, deviser can utilize concept of the present invention to be applied to n, b, c, s of varying number certainly.
From the above, during k=0, the sweep signal that scan drive circuit 121 exports is by Article 1 sweep trace S1(1+0 × 4) sequentially input and be opened to Article 4 sweep trace S4(4+0 × 4), now, data-signal inputs pixel electrode 113 corresponding to described sweep trace S1 ~ S4.In the prior art, sweep signal can continue to export and open Article 5 sweep trace S5, Article 6 sweep trace S6 ... but, the present embodiment does not open Article 5 sweep trace S5, but output sweep signal is sequentially opened to Article 4 sweep trace S4 by Article 1 sweep trace S1 again, now, data-signal inputs pixel electrode 113 corresponding to described sweep trace S1 ~ S4 again.That is, scan drive circuit 121 exports sweep signal from after Article 1 sweep trace S1 to Article 4 sweep trace S4, then repeats to export single pass signal (also i.e. c=2) to Article 1 sweep trace S1 to Article 4 sweep trace S4.
Then, 0 (k) is added 1, when making new k=1, the sweep signal that scan drive circuit 121 exports is by Article 5 sweep trace S5(1+1 × 4) sequentially input and be opened to Article 8 sweep trace S8(4+1 × 4), now, data-signal inputs pixel electrode 113 corresponding to described sweep trace S5 ~ S8, afterwards, scan drive circuit 121 does not export sweep signal to Article 9 sweep trace S9, but output sweep signal is sequentially opened to Article 8 sweep trace S8 by Article 5 sweep trace S5 again, now, data-signal inputs pixel electrode 113 corresponding to described sweep trace S5 ~ S8 again.That is, after scan drive circuit 121 exports sweep signal unlatching Article 5 sweep trace S5 to Article 8 sweep trace S8, then repeat to export single pass signal (c=2) to Article 5 sweep trace S5 to Article 8 sweep trace S8.Then 1 (k) adds 1, makes new k=2, new k=3, and multiple scanning by that analogy, repeat no more.
Therefore, in a frame time (frame time), sweep trace S is sequentially driven by scan drive circuit 121 and the order of opening is: S1 ~ S4, S1 ~ S4, S5 ~ S8, S5 ~ S8, S9 ~ S12, S9 ~ S12, S13 ~ S16 and S13 ~ S16.For 60Hz, the cycle of existing sweep signal is 1/60 second (frame time is 1/60 second), therefore concerning each sweep trace, it can be unlocked once for 1/60 second (now corresponding data-signal input pixel electrode), but the pixel electrode due to neighbor can produce and intercouple, disturbs, and then affects the current potential of pixel electrode and make charged particle C correctly be moved on due position.But, the present embodiment is when frame time is constant, as shown in Figure 2 B, the scan period T of sweep signal is 1 ÷ (60 × n/b)=1 ÷ (60 × 16/4)=1/240 second, faster than prior art 3 times, so compared with prior art, although adjacent pixel electrodes still can interfere with each other, but as shown in Figure 2 C, the pixel electrode 113 of pixel P can be inputted once by data voltage in 1/240 second, can twice be transfused in a frame time, therefore the current potential of pixel electrode 113 can be made relatively can be maintained, therefore, situation not good because of the display quality caused by signal coupling interference between two adjacent pixel electrodes can be improved.
But, in above-mentioned scanning process, the pixel electrode 113 that the Article 1 sweep trace in next district is corresponding still can disturb pixel electrode 113(such as S5 corresponding to district's the last item sweep trace to affect S4, S9 to be affected S8, S13 and affects S12), therefore, still the problem of bright dark fringe can be produced because of the intersection in the signal interference problem Er Liang district of adjacent pixel electrodes 113.
In order to address this problem, please refer to shown in Fig. 3 A, it is the subregion schematic diagram of the described sweep trace S of the display module 11a of second embodiment of the invention.
Same as described above, the quantity n of the S of sweep trace is the same is such as 16, and is divided into 4th district, and there are 4 sweep traces (b=4) in each district.In addition, in the present embodiment, c is such as 2, represent and repeat to input sweep signal twice, and s is such as 2, after representing an end of extent scanning, toward moving down 2 sweep traces, therefore, and s < b.The display module 11a of the present embodiment also can have more than first virtual scan line and more than second virtual scan line, the quantity of described first virtual scan line and described second virtual scan line equals (b-s)=2, so as shown in Figure 3A, the code name of described first virtual scan line is respectively DS11 and DS12, and the code name of described second virtual scan line is respectively DS21 and DS22.Certainly, when s and b changes, the quantity of described first virtual scan line and described second virtual scan line also changes.
Therefore, in a second embodiment, as k=0, sweep signal is before input Article 1 sweep trace S1, after sweep signal first can sequentially input described first virtual scan line DS11, DS12, more sequentially input and open Article 1 sweep trace S1 and Article 2 sweep trace S2 (s=2).Afterwards, scan drive circuit does not export sweep signal to Article 3 sweep trace S3, but output sweep signal sequentially inputs described first virtual scan line DS11 ~ Article 2 sweep trace S2 again.That is, scan drive circuit exports sweep signal after first virtual scan line DS11, DS12 is opened to Article 1 sweep trace S1 and Article 2 sweep trace S2, repeat again to export once (c=2) the first virtual scan line DS11, DS12, Article 1 sweep trace S1 and Article 2 sweep trace S2, now, Article 1 sweep trace S1 and Article 2 sweep trace S2 is unlocked twice.
Then, the sweep signal that scan drive circuit exports is by Article 1 sweep trace S1(1+0 × 2) sequentially input and be opened to Article 4 sweep trace S4(4+0 × 2), afterwards, scan drive circuit again exports sweep signal and is sequentially opened to Article 4 sweep trace S4 by Article 1 sweep trace S1.That is, after scan drive circuit exports sweep signal unlatching Article 1 sweep trace S1 to Article 4 sweep trace S4, then repeat to export once (c=2) Article 1 sweep trace S1 to Article 4 sweep trace S4.Afterwards, the value of k sequentially adds 1 ..., make new k=1,2,3 ... 6, its multiple scanning situation can be by that analogy.
As k=7, the sweep signal that scan drive circuit exports is by Article 15 sweep trace S15(1+7 × 2) sequentially input and be opened to Article 16 sweep trace S16, due to (b+ks)=(4+7 × 2)=18 > 16(n), so sweep signal is after input Article 16 sweep trace S16, the second virtual scan line DS21 and DS22 sequentially can be inputted.That is, due to (b+ks) > n, so scan drive circuit exports after sweep signal opens the last item sweep trace (S16), the second virtual scan line DS21 and DS22 can be opened, and repeat to export once (c=2) Article 15 sweep trace S15, Article 16 sweep trace S16, second virtual scan line DS21, DS22.
Therefore, in a frame time, sweep trace and virtual scan line are sequentially driven by scan drive circuit and the order of opening is: DS11 ~ S2, DS11 ~ S2, S1 ~ S4, S1 ~ S4 ... S13 ~ S16, S13 ~ S16, S15 ~ DS22, S15 ~ DS22.Therefore, same for 60Hz, the present embodiment is when frame time is constant, the scan period of a certain bar sweep trace is 1/240 second, faster than prior art 3 times, compared with prior art, although adjacent pixel electrodes still can interfere with each other, but as shown in Figure 3 B, the pixel electrode 113 of pixel P also can be transfused to data voltage once in 1/240 second time, four times can be transfused in a frame time, therefore, situation not good because of the display quality caused by signal coupling interference between two adjacent pixel electrodes can be improved.In addition, after a domain scanning terminates, that 2 sweep traces repeating Dui Shang mono-district toward moving down 2 sweep traces are opened and carry out inputting the action of data voltage to pixel electrode 113, so also can improve in the first embodiment, the pixel electrode 113 that the Article 1 sweep trace in next district is corresponding disturbs the pixel electrode 113 that upper district's the last item sweep trace is corresponding, and then improves the problem producing bright dark fringe between twoth district.
In addition, please refer to shown in Fig. 2 A to Fig. 4 B, wherein, Fig. 4 A and Fig. 4 B is respectively the schematic diagram of the different driving method of a kind of electrophoretic display apparatus of present pre-ferred embodiments.Much more no longer the technical characteristic of electrophoresis display device describes in detail in above-mentioned first embodiment and the second embodiment, to explain.
As shown in Figure 4 A, the driving method of electrophoresis display device comprises step S01: export one scan signal by driver module and drive display module, wherein sweep signal is sequentially input to (b+ks) article sweep trace by (1+ks) article sweep trace and repeats input c time, k is 0 or positive integer, n, b, c and s is respectively positive integer, 1≤s < n, 0≤k < n, 1 < b < n, and after (1+ks) article sweep trace is sequentially repeated to input c time to (b+ks) article sweep trace by sweep signal, then k is added 1, multiple scanning more afterwards.
In one embodiment, s=b, in another embodiment, s < b.In addition, exported in the step of sweep signal by driver module, when sweep signal input scan line, driver module is an exportable data-signal also, and inputs corresponding described pixel electrode by described data line.In addition, as shown in Figure 3A, display module 11a also can have more than first virtual scan line and more than second virtual scan line, the quantity of described first virtual scan line or described second virtual scan line is (b-s), and as shown in Figure 4 B, as k=0, then perform step S02: before sweep signal input Article 1 sweep trace, after sweep signal first sequentially inputs described first virtual scan line, be more sequentially input to s article of sweep trace by Article 1 sweep trace.In addition, as (b+ks) > n, then perform step S03: sweep signal is after input n-th sweep trace, and sweep signal sequentially inputs described second virtual scan line again.
In addition, other technical characteristic of the driving method of electrophoresis display device, at above-mentioned middle detailed description, repeats no more.
In sum, because of in electrophoretic display apparatus of the present invention and driving method thereof, export one scan signal by driver module and drive display module.Wherein, sweep signal is sequentially input to (b+ks) article sweep trace by (1+ks) article sweep trace and repeats input c time, k is 0 or positive integer, n, b, c and s are respectively positive integer, 1≤s < n, 0≤k < n, 1 < b < n, and after (1+ks) article sweep trace is sequentially repeated to input c time to (b+ks) article sweep trace by sweep signal, then k is added 1.Like this, compared with prior art, although adjacent pixel electrodes still can interfere with each other, but the data voltage of data line can input the pixel electrode of described pixel within a short period of time, and data voltage can be transfused in a frame time for several times, so make the current potential of pixel electrode can be easier to be maintained at certain value and electrophoresis material can be driven to reach location with correct show image.Therefore, electrophoretic display apparatus of the present invention and driving method thereof can improve situation not good because of the display quality caused by signal coupling interference between two adjacent pixel electrodes.
The foregoing is only illustrative, but not be restricted.Anyly do not depart from spirit of the present invention and scope, and to its equivalent modifications of carrying out or change, all should comprise in the claims.
[symbol description]
1: electrophoretic display apparatus
11,11a: display module
111: infrabasal plate
112: adhesion layer
113: pixel electrode
114: non-volatile type display material
115: upper substrate
116: common electrode layer
117: accommodating structure
12: driver module
121: scan drive circuit
122: data drive circuit
A-A: straight line
C: charged particle
D: data line
DP: display panel
DS11, DS12: the first virtual scan line
DS21, DS22: the second virtual scan line
L: dielectric solution
N: sweep trace quantity
P: pixel
S, S1 ~ S16: sweep trace
S01 ~ S03: step
T: cycle
Claims (18)
1. an electrophoretic display apparatus, comprising:
One display module, have more than a sweep trace and more than a data line, and described sweep trace and described data line definition goes out more than one pixel, and the quantity of described sweep trace is n bar; And
One driver module, is electrically connected by described sweep trace and described data line and described pixel, and described driver module exports one scan signal and drives described display module,
Wherein, described sweep signal is sequentially input to (b+ks) article sweep trace by (1+ks) article sweep trace and repeats input c time, k is 0 or positive integer, n, b, c and s are respectively positive integer, 1≤s < n, 0≤k < n, 1 < b < n, and after (1+ks) article sweep trace is sequentially repeated to input c time to (b+ks) article sweep trace by described sweep signal, then k is added 1.
2. electrophoretic display apparatus, wherein s=b as claimed in claim 1.
3. electrophoretic display apparatus, wherein s < b as claimed in claim 1.
4. electrophoretic display apparatus as claimed in claim 1, the cycle of wherein said sweep signal is 1 ÷ (60 × n/b) second.
5. electrophoretic display apparatus as claimed in claim 1, wherein said display module also has a non-volatile type display material, and described non-volatile type display material comprises an electrophoresis material.
6. electrophoretic display apparatus as claimed in claim 5, wherein said display module also has a substrate and an adhesion layer, described pixel correspondence has more than one pixel electrode, described pixel electrode is arranged on the substrate, and described adhesion layer is arranged between described non-volatile type display material and described pixel electrode.
7. electrophoretic display apparatus as claimed in claim 6, wherein when described sweep signal inputs one of them of described sweep trace, described driver module also exports a data-signal, and inputs corresponding described pixel electrode by described data line.
8. electrophoretic display apparatus as claimed in claim 1, wherein said display module also has more than first virtual scan line, and as k=0, described sweep signal is before input Article 1 sweep trace, after described sweep signal first sequentially inputs described first virtual scan line, be more sequentially input to described s article of sweep trace by described Article 1 sweep trace.
9. electrophoretic display apparatus as claimed in claim 8, wherein said display module also has more than second virtual scan line, and as (b+ks) > n, described sweep signal is after described n-th sweep trace of input, and described sweep signal sequentially inputs described second virtual scan line again.
10. electrophoretic display apparatus as claimed in claim 9, the quantity of wherein said first virtual scan line or described second virtual scan line is (b-s).
The driving method of 11. 1 kinds of electrophoretic display apparatus, described electrophoretic display apparatus has a display module and a driver module, described display module has more than a sweep trace and more than a data line, and described sweep trace and described data line definition go out more than one pixel, the quantity of described sweep trace is n bar, described driver module is electrically connected by described sweep trace and described data line and described pixel, and described driving method comprises:
Export one scan signal by described driver module and drive described display module, wherein said sweep signal is sequentially input to (b+ks) article sweep trace by (1+ks) article sweep trace and repeats input c time, k is 0 or positive integer, n, b, c and s are respectively positive integer, 1≤s < n, 0≤k < n, 1 < b < n, and after (1+ks) article sweep trace is sequentially repeated to input c time to (b+ks) article sweep trace by described sweep signal, then k is added 1.
12. driving method, wherein s=b as claimed in claim 11.
13. driving methods as claimed in claim 11, wherein s < b.
14. driving methods as claimed in claim 11, the cycle of wherein said sweep signal is 1 ÷ (60 × n/b) second.
15. driving methods as claimed in claim 11, wherein exported in the step of described sweep signal by described driver module, described pixel correspondence has more than one pixel electrode, and when described sweep signal inputs one of them of described sweep trace, described driver module also exports a data-signal, and inputs corresponding described pixel electrode by described data line.
16. driving methods as claimed in claim 11, wherein said display module also has more than first virtual scan line, and exported in the step of described sweep signal by described driver module, as k=0, before described sweep signal inputs described Article 1 sweep trace, after described sweep signal first sequentially inputs described first virtual scan line, be more sequentially input to described s article of sweep trace by described Article 1 sweep trace.
17. driving methods as claimed in claim 15, wherein said display module also has more than second virtual scan line, and exported in the step of described sweep signal by described driver module, as (b+ks) > n, described sweep signal is after described n-th sweep trace of input, and described sweep signal sequentially inputs described second virtual scan line again.
18. driving methods as claimed in claim 17, the quantity of wherein said first virtual scan line or described second virtual scan line is (b-s).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW103105679A TWI541784B (en) | 2014-02-20 | 2014-02-20 | Electrophoretic display device and driving method thereof |
| TW103105679 | 2014-02-20 |
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| CN104867458A true CN104867458A (en) | 2015-08-26 |
| CN104867458B CN104867458B (en) | 2017-08-04 |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104867458B (en) | 2017-08-04 |
| TWI541784B (en) | 2016-07-11 |
| TW201533724A (en) | 2015-09-01 |
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