CN112259054A - Fast-response three-color electrophoresis driving method - Google Patents
Fast-response three-color electrophoresis driving method Download PDFInfo
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- CN112259054A CN112259054A CN202011311284.8A CN202011311284A CN112259054A CN 112259054 A CN112259054 A CN 112259054A CN 202011311284 A CN202011311284 A CN 202011311284A CN 112259054 A CN112259054 A CN 112259054A
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- 238000001962 electrophoresis Methods 0.000 title claims abstract description 14
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 39
- 230000004913 activation Effects 0.000 claims abstract description 19
- 230000002045 lasting effect Effects 0.000 claims description 9
- 239000003094 microcapsule Substances 0.000 abstract description 7
- 229920006395 saturated elastomer Polymers 0.000 abstract description 4
- 230000000007 visual effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 7
- 230000000737 periodic effect Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0257—Reduction of after-image effects
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention discloses a three-color electrophoresis driving method with quick response, which mainly applies activation voltage to electrodes of a three-color electrophoresis display screen to drive white charged particles, black charged particles and red charged particles to generate continuous back-and-forth collision motion between a display microelectrode and a back plate microelectrode, can activate the charged particles in microcapsules, eliminate ghost residues of the three-color electrophoresis display screen, greatly shorten the time for resetting and wiping ghosts under the condition of keeping good driving effect, then applies driving voltage to the electrodes of the three-color electrophoresis display screen to drive the white charged particles and the red charged particles to respectively move towards the back plate microelectrode and the display microelectrode, the red-saturated state is separated from the black charged particles to obtain the optimal red saturated state, so that the three-color electrophoretic display screen can quickly respond to form an image, the image can be displayed more brightly and gorgeously, and the visual effect is better.
Description
Technical Field
The invention relates to a three-color electronic paper display screen, in particular to a quick-response three-color electrophoresis driving method.
Background
The traditional electrophoretic display screen is mostly black-and-white display, composed of charged particles suspended in a colloid material, and encapsulated by microcapsules, namely, the microcapsules with the same size are filled with particles and coloring liquid, the particles move up and down by switching the positive and negative charges attached to a microcapsule driving electrode, so that the colors of the particles and the colors of the liquid are alternately displayed, the electrophoretic display screen enjoyed by the diversified demands introduces the electrophoretic display of three-color particles, the driving time of the existing three-color particles is long, the requirement of the electrophoretic display screen can be displayed by images after long-time response, the red display of the display screen can not reach the optimal state under the condition of ghost phenomenon, and the visual quality is not excellent.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a fast-response three-color electrophoresis driving method.
The technical scheme adopted by the invention for solving the technical problems is as follows:
a three-color electrophoresis driving method with quick response is characterized in that an activation voltage is applied to an electrode of a three-color electrophoresis display screen to drive white charged particles, black charged particles and red charged particles to generate continuous back-and-forth collision motion between a display microelectrode and a back plate microelectrode, and then a driving voltage is applied to the electrode of the three-color electrophoresis display screen to drive the white charged particles and the red charged particles to respectively move towards the back plate microelectrode and the display microelectrode.
The activation voltage consists of 2 activation periods consisting of a positive voltage lasting 17 units of time and a negative voltage lasting 17 units of time in sequence; the driving voltage consists of a positive voltage lasting 130 units of time.
The positive voltage of the activation period is +15V, and the negative voltage of the activation period is-15V.
The positive voltage of the driving voltage is + 2.88V.
The duration of the unit time is 10 ms.
The invention has the beneficial effects that: the activation voltage can drive the white charged particles, the black charged particles and the red charged particles to do back-and-forth collision motion, the charged particles in the microcapsules are activated, ghost residues of the three-color electrophoretic display screen are eliminated, the time for resetting and wiping the ghost is greatly shortened under the condition of keeping a good driving effect, the white charged particles and the red charged particles are driven by the driving voltage applied to the three-color electrophoretic display screen to respectively move towards the back plate microelectrode and the display microelectrode and are separated from the black charged particles, an optimal red saturated state is obtained, the three-color electrophoretic display screen can quickly respond to form images, the images can be displayed more brightly and beautifully, and the visual effect is better.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic diagram of a microcapsule structure of a three-color electrophoretic display panel;
FIG. 2 is a waveform diagram of a periodic waveform;
FIG. 3 is a conventional trichromatic electrophoretic chromaticity diagram;
fig. 4 is an optimized trichromatic electrophoretic chromaticity diagram.
Detailed Description
Referring to fig. 1 and 2, a fast-response three-color electrophoretic driving method, which applies an activation voltage to electrodes of a three-color electrophoretic display panel, the activation voltage is composed of 2 activation periods, the activation periods are sequentially composed of positive voltage lasting for 17 unit time and negative voltage lasting for 17 unit time, the white charged particles 1, the black charged particles 2 and the red charged particles 3 are driven to generate continuous back-and-forth collision motion between the display microelectrode 5 and the back plate microelectrode 4, the charged particles in the microcapsule 6 can be activated, the particle state is reset (namely the pixel is reset to a stable white state), ghost residues of a three-color electrophoretic display screen are eliminated, and the time for resetting and wiping ghosts is greatly shortened under the condition of keeping good driving effect, the positive voltage of the activation period is +15V, and the negative voltage of the activation period is-15V.
Applying a driving voltage consisting of a positive voltage lasting 130 unit times of +2.88V to the electrodes of the three-color electrophoretic display, the duration of the unit time being 10ms (the change in position of the charged particles from the last negative voltage of the activation period to the driving voltage is also shown in fig. 1); the white charged particles 1 and the red charged particles 3 are driven to respectively move towards the backboard microelectrode 4 and the display microelectrode 5 and are separated from the black charged particles 2 to obtain the optimal red saturation state, so that the three-color electrophoretic display screen can quickly respond to form images, the images can be displayed more brightly and gorgeously, and the visual effect is better.
In the comparison and verification of the live condition and the simulation of the method, the function generator is used for generating a simulated periodic waveform which is formed by combining an activation voltage and a driving voltage in sequence, the complete periodic waveform can refer to fig. 2, the periodic waveform generated by the function generator is amplified by a signal amplifier and then input into a three-color electrophoretic display screen, and a colorimeter is placed on the three-color electrophoretic display screen so as to observe the chromaticity change, so that the optimized three-color electrophoretic chromaticity diagram (fig. 4) can be obviously observed compared with the traditional three-color electrophoretic chromaticity diagram (fig. 3), and the chromaticity change of the optimized three-color electrophoretic chromaticity diagram is more active and saturated.
The above embodiments do not limit the scope of the present invention, and those skilled in the art can make equivalent modifications and variations without departing from the overall concept of the present invention.
Claims (5)
1. A quick-response three-color electrophoresis driving method is characterized in that activation voltage is applied to electrodes of a three-color electrophoresis display screen to drive white charged particles, black charged particles and red charged particles to generate continuous back-and-forth collision motion between a display microelectrode and a back plate microelectrode, and then driving voltage is applied to the electrodes of the three-color electrophoresis display screen to drive the white charged particles and the red charged particles to respectively move towards the back plate microelectrode and the display microelectrode.
2. The fast-response three-color electrophoretic driving method according to claim 1, wherein the activation voltage is composed of 2 activation periods, the activation periods being composed of a positive voltage lasting 17 unit times and a negative voltage lasting 17 unit times in this order; the driving voltage consists of a positive voltage lasting 130 units of time.
3. The fast-response three-color electrophoretic driving method according to claim 2, wherein the positive voltage of the active period is +15V, and the negative voltage of the active period is-15V.
4. The fast-response three-color electrophoretic driving method according to claim 2, wherein the positive voltage of the driving voltage is + 2.88V.
5. The fast-response three-color electrophoretic driving method according to claim 2, wherein the time duration of the unit time is 10 ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311284.8A CN112259054A (en) | 2020-11-20 | 2020-11-20 | Fast-response three-color electrophoresis driving method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011311284.8A CN112259054A (en) | 2020-11-20 | 2020-11-20 | Fast-response three-color electrophoresis driving method |
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| CN112259054A true CN112259054A (en) | 2021-01-22 |
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| CN202011311284.8A Pending CN112259054A (en) | 2020-11-20 | 2020-11-20 | Fast-response three-color electrophoresis driving method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113450728A (en) * | 2021-07-14 | 2021-09-28 | 中国科学院重庆绿色智能技术研究院 | Improved electronic paper driving method |
| CN113707100A (en) * | 2021-07-20 | 2021-11-26 | 中山职业技术学院 | Driving method for eliminating color ghost of three-color electrophoretic electronic paper |
| CN113870803A (en) * | 2021-10-18 | 2021-12-31 | 京东方科技集团股份有限公司 | Electronic paper display device and driving method thereof |
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| US8498041B2 (en) * | 2009-07-29 | 2013-07-30 | Seiko Epson Corporation | Electrophoretic display element, electrophoretic display device, and electronic apparatus |
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| CN109817167A (en) * | 2019-02-26 | 2019-05-28 | 江西兴泰科技有限公司 | It is a kind of to eliminate the drive waveforms adjustment method that heterochromatic particle is remained in three color Electronic Paper module displays |
| CN110189711A (en) * | 2019-05-14 | 2019-08-30 | 江西兴泰科技有限公司 | A kind of waveform adjustment method shortening dark red Bai Sanse refresh time |
| CN110441973A (en) * | 2019-08-16 | 2019-11-12 | 京东方科技集团股份有限公司 | Display panel and its control method, display device of electronic paper |
| CN111292691A (en) * | 2018-12-10 | 2020-06-16 | 江西兴泰科技有限公司 | Low-temperature red waveform debugging method for black-white-red electronic paper module |
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2020
- 2020-11-20 CN CN202011311284.8A patent/CN112259054A/en active Pending
Patent Citations (10)
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|---|---|---|---|---|
| WO2005071650A1 (en) * | 2004-01-22 | 2005-08-04 | Koninklijke Philips Electronics N.V. | An electrophoretic display and a method and apparatus for driving an electrophoretic display |
| JP2007531000A (en) * | 2004-03-22 | 2007-11-01 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | "Rail stabilization" (reference state) drive method with image memory for electrophoretic display |
| US8498041B2 (en) * | 2009-07-29 | 2013-07-30 | Seiko Epson Corporation | Electrophoretic display element, electrophoretic display device, and electronic apparatus |
| CN107407848A (en) * | 2015-04-06 | 2017-11-28 | 伊英克加利福尼亚有限责任公司 | The driving method of colour display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113450728A (en) * | 2021-07-14 | 2021-09-28 | 中国科学院重庆绿色智能技术研究院 | Improved electronic paper driving method |
| CN113707100A (en) * | 2021-07-20 | 2021-11-26 | 中山职业技术学院 | Driving method for eliminating color ghost of three-color electrophoretic electronic paper |
| CN113707100B (en) * | 2021-07-20 | 2023-04-18 | 中山职业技术学院 | Driving method for eliminating color ghost of three-color electrophoretic electronic paper |
| CN113870803A (en) * | 2021-10-18 | 2021-12-31 | 京东方科技集团股份有限公司 | Electronic paper display device and driving method thereof |
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Application publication date: 20210122 |