CN109545154A - A kind of driving method keeping electrowetting Electronic Paper DC balance - Google Patents
A kind of driving method keeping electrowetting Electronic Paper DC balance Download PDFInfo
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- CN109545154A CN109545154A CN201910076098.1A CN201910076098A CN109545154A CN 109545154 A CN109545154 A CN 109545154A CN 201910076098 A CN201910076098 A CN 201910076098A CN 109545154 A CN109545154 A CN 109545154A
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- electronic paper
- driving
- driving method
- balance
- display
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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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- 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)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The present invention relates to a kind of driving methods for keeping electrowetting Electronic Paper DC balance.Control signal is generated according to the display state of required display picture, and according to control signal query driven waveform table, the corresponding drive waveforms information of display state of display picture needed for inquiry, and pass to sequence controller, driving chip and public electrode are passed to after sequence controller modulation, image data and gated data are sent to control driving chip to the driving electrodes of electrowetting electronic-paper display screen, realizes the display of picture；Under the driving method of subframe, each subframe is carried out to be cut into subframe, in each subframe, display state/the grayscale drawn according to required display surface, the polarity upset for adjusting driving electrodes and public electrode, in the case where guaranteeing that the constant i.e. gray scale of voltage difference of application on the pixel electrode is constant, the total time for applying positive voltage is set to be equal to the total time for applying negative voltage, to keep the DC balance of electrowetting Electronic Paper.
Description
Technical field
The present invention relates to display technology field, in particular to a kind of driving side for keeping electrowetting Electronic Paper DC balance
Method.
Background technique
In recent years, electronic paper display device because its perception effect be similar to paper, low-power consumption, environmental protection the advantages that and by pass
Note.Electrowetting Electronic Paper is equally able to achieve high brightness, high contrast, low energy consumption compared to electrophoretic electronic paper, and in response speed
On be faster than electrophoretic electronic paper, thus become the focus on research direction of electric paper display of new generation.
At present there is no the driving chips for being directed to electrowetting Electronic Paper, are all the driving chips using electrophoretic electronic paper.In order to
Give electrowetting Electronic Paper provide be up to 30V driving voltage, the public electrode of electrowetting Electronic Paper be generally fixed to+15V or-
15V, the voltage of driving electrodes have -15V, 0V ,+15V third gear.Because public electrode is fixed, the voltage in electrowetting Electronic Paper is single
One polarity.Electrowetting Electronic Paper is that contact angle changes and realizes display switch on the dielectric layer based on two kinds of fluids.And two kinds of streams
Ion concentration in body is different, be easy to cause accumulation of certain ion in same polar voltages on substrate.To make
At charge Trapping Phenomenon in electrowetting Electronic Paper, electrowetting Electronic Paper is made polarization phenomena occur.Remaining charge forms built-in electricity
, device architecture is damaged for a long time.
Summary of the invention
The purpose of the present invention is to provide a kind of driving methods for keeping electrowetting Electronic Paper DC balance, are able to maintain electricity
Soak the DC balance of Electronic Paper.
To achieve the above object, the technical scheme is that a kind of driving for keeping electrowetting Electronic Paper DC balance
Method, firstly, generating control signal according to the display state of required display picture, and according to control signal query driven waveform
Table, the corresponding drive waveforms of display state of display picture needed for inquiring；Secondly, the display shape of display picture needed for inquiring
The corresponding drive waveforms information of state passes to sequence controller；Finally, the drive waveforms information tune that sequence controller will receive
System passes to driving chip and public electrode, to control driving electrodes transmission figure of the driving chip to electrowetting electronic-paper display screen
As data and gated data, the display of picture is realized；Wherein, drive waveforms information includes the driving electricity for being able to maintain DC balance
Pole waveform and common electrode waveform.
In an embodiment of the present invention, under the driving method of subframe, each subframe is carried out to be cut into subframe, every
In one subframe, according to display state/grayscale that required display surface is drawn, the polarity upset of driving electrodes and public electrode is adjusted,
In the case where guaranteeing that the constant i.e. gray scale of voltage difference of application on the pixel electrode is constant, make the total time etc. for applying positive voltage
In the total time for applying negative voltage, to keep the DC balance of electrowetting Electronic Paper.
In an embodiment of the present invention, the driving method using more subframes driving method.
In an embodiment of the present invention, the driving chip is using energy offer -15V, 0V ,+15V voltage and pressure difference
Up to the electrophoretic electronic paper driving chip of 30V.
In an embodiment of the present invention, the driving electrodes voltage is -15V, 0 ,+15V.
In an embodiment of the present invention, the public electrode voltages are -15V, 0 ,+15V.
In an embodiment of the present invention, the cutting of the subframe is even number equal part.
In an embodiment of the present invention, the even number equal part includes 2 equal equal parts, 4 equal equal parts.
Compared to the prior art, the invention has the following advantages: holding electrowetting Electronic Paper provided by the invention is straight
The driving method of mobile equilibrium is able to maintain the DC balance of electrowetting Electronic Paper.
Detailed description of the invention
Fig. 1 is the method for the present invention flow chart.
Fig. 2 to Figure 10 is respectively the 1-9 grayscale driving electrodes and public electrode that one embodiment of the invention realizes DC balance
Drive waveforms.
Specific embodiment
With reference to the accompanying drawing, technical solution of the present invention is specifically described.
The present invention provides a kind of driving methods for keeping electrowetting Electronic Paper DC balance, firstly, according to required display
The display state of picture generates control signal, and according to control signal query driven waveform table, display picture is aobvious needed for inquiring
Show the corresponding drive waveforms of state；Secondly, the corresponding drive waveforms information of display state of display picture needed for inquiring passes
Pass sequence controller；Finally, the drive waveforms modulates information received is passed to driving chip and public by sequence controller
Electrode sends image data and gated data to control driving chip to the driving electrodes of electrowetting electronic-paper display screen, realizes
The display of picture；Wherein, drive waveforms information includes the driving electrodes waveform and common electrode waveform for being able to maintain DC balance.
Under the driving method of subframe, each subframe is carried out to be cut into subframe, in each subframe, be drawn according to required display surface
Display state/grayscale, adjust the polarity upset of driving electrodes and public electrode, guaranteeing to apply voltage on the pixel electrode
Difference it is constant, i.e., gray scale it is constant in the case where, make apply positive voltage total time be equal to apply negative voltage total time, to keep
The DC balance of electrowetting Electronic Paper.
The following are specific implementation processes of the invention.
A kind of driving method keeping electrowetting Electronic Paper DC balance as shown in Figure 1, comprising the following steps:
Step S1, control signal is generated according to the display state for the picture of being shown, controls signal query driven waveform table, looks into
Ask the corresponding drive waveforms of display state for the picture of being shown.
Step S2, the corresponding drive waveforms information of the display state for inquiring the picture of being shown is passed into timing control
Device processed, wherein drive waveforms information includes driving electrodes waveform and common electrode waveform.
Step S3, the drive waveforms modulates information received is passed to driving chip and public electrode by sequence controller,
It controls driving chip and sends image data and gated data to the driving electrodes of electrowetting electronic-paper display screen, realize the aobvious of picture
Show.
Before step S1, need to preset drive waveforms table.When realizing the display of 9 grayscale such as electrowetting Electronic Paper, need
4 long subframes are wanted, the display of 16 grayscale needs 7 long subframes.The driving chip used in the present invention to can provide+15V, 0V's, -15V
Electrophoresis driving chip, under the driving method of subframe, each subframe can provide 0,15V, the 30V that pressure difference is single polarity for pixel
Voltage.Each long subframe is cut into 2 impartial short subframes, in conjunction with the polar overturning of public electrode, then each short subframe can
The voltage that pressure difference is ambipolar 0,15V, 30V is provided for pixel.It is constant i.e. in the voltage difference remained applied on pixel electrode
In the case that gray scale is constant, the total time that adjustment applies positive voltage is equal to the total time for applying negative voltage, to keep electrowetting
The DC balance of Electronic Paper.It is as shown in figs. 2-10 the 1-9 grayscale waveform diagram for realizing DC balance, Vbottom is driving electrodes,
Vcommon is public electrode, and 1 to 9 grayscale are corresponding in turn to from 2 to 10.
As shown in figure 3, applying pressure difference in pixel is the voltage of 15V to realize the 2nd grayscale, by that corresponding long frame cutting
At 2 impartial short subframes, public electrode polarity is overturn in short subframe, makes to be applied to+the 15V in pixel for 1 short subframe
With -15V the voltage of 1 short subframe, guarantee that total voltage difference is constant and reaches DC balance.
It should be noted that electrowetting also known as electricity are wet, the driving of electrowetting Electronic Paper DC balance is kept in the present invention
Method can equally be well applied to electric wet-type display.
The above are preferred embodiments of the present invention, all any changes made according to the technical solution of the present invention, and generated function is made
When with range without departing from technical solution of the present invention, all belong to the scope of protection of the present invention.
Claims (8)
1. a kind of driving method for keeping electrowetting Electronic Paper DC balance, which is characterized in that firstly, according to required display picture
Display state generate control signal, and according to control signal query driven waveform table, inquire needed for display picture display shape
The corresponding drive waveforms of state；Secondly, the corresponding drive waveforms information of display state of display picture needed for inquiring passes to
Sequence controller；Finally, the drive waveforms modulates information received is passed to driving chip and public electrode by sequence controller,
Image data and gated data are sent to control driving chip to the driving electrodes of electrowetting electronic-paper display screen, realizes picture
Display；Wherein, drive waveforms information includes the driving electrodes waveform and common electrode waveform for being able to maintain DC balance.
2. a kind of driving method for keeping electrowetting Electronic Paper DC balance according to claim 1, which is characterized in that
Under the driving method of subframe, each subframe is carried out to be cut into subframe, in each subframe, be drawn according to required display surface
Display state/grayscale adjusts the polarity upset of driving electrodes and public electrode, is guaranteeing to apply voltage difference on the pixel electrode
It is constant, i.e., gray scale it is constant in the case where, make apply positive voltage total time be equal to apply negative voltage total time, thus keep electricity
Soak the DC balance of Electronic Paper.
3. a kind of driving method for keeping electrowetting Electronic Paper DC balance according to claim 2, which is characterized in that institute
Driving method is stated using the driving method of more subframes.
4. a kind of driving method for keeping electrowetting Electronic Paper DC balance according to claim 1 or 2, feature exist
In the driving chip drives core using the electrophoretic electronic paper of energy offer -15V, 0V ,+15V voltage and pressure difference up to 30V
Piece.
5. a kind of driving method for keeping electrowetting Electronic Paper DC balance according to claim 1 or 2, feature exist
In the driving electrodes voltage is -15V, 0 ,+15V.
6. a kind of driving method for keeping electrowetting Electronic Paper DC balance according to claim 1 or 2, feature exist
In the public electrode voltages are -15V, 0 ,+15V.
7. a kind of driving method for keeping electrowetting Electronic Paper DC balance according to claim 2, which is characterized in that institute
The cutting of subframe is stated, is even number equal part.
8. a kind of driving method for keeping electrowetting Electronic Paper DC balance according to claim 7, which is characterized in that institute
Stating even number equal part includes 2 equal equal parts, 4 equal equal parts.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910076098.1A CN109545154B (en) | 2019-01-26 | 2019-01-26 | Driving method for keeping direct current balance of electrowetting electronic paper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910076098.1A CN109545154B (en) | 2019-01-26 | 2019-01-26 | Driving method for keeping direct current balance of electrowetting electronic paper |
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| CN109545154A true CN109545154A (en) | 2019-03-29 |
| CN109545154B CN109545154B (en) | 2020-11-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116364022A (en) * | 2023-03-31 | 2023-06-30 | 广东志慧芯屏科技有限公司 | Electronic paper display screen driving method and system and electronic equipment |
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| CN101751867A (en) * | 2008-12-17 | 2010-06-23 | 乐金显示有限公司 | Electrophoresis display and driving method thereof |
| CN102214443A (en) * | 2010-04-01 | 2011-10-12 | 广州奥熠电子科技有限公司 | Electrophoretic display and driving method thereof |
| CN104795028A (en) * | 2015-04-16 | 2015-07-22 | 华南师范大学 | Electro-wetting multi-grey-scale display drive method |
| CN105280142A (en) * | 2014-06-23 | 2016-01-27 | 精工爱普生株式会社 | Integrated Circuit Device, Electronic Apparatus, And Control Method For Electrooptic Panel |
| CN105405411A (en) * | 2015-12-01 | 2016-03-16 | 深圳市国华光电科技有限公司 | Display driving method and system of sixteen-order electrophoretic display device |
| CN106023906A (en) * | 2016-06-24 | 2016-10-12 | 深圳市国华光电科技有限公司 | Electrophoretic electronic paper driving method and system thereof |
| CN108154851A (en) * | 2016-12-02 | 2018-06-12 | 达意科技股份有限公司 | The sequence controller circuit of electronic paper display devices |
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2019
- 2019-01-26 CN CN201910076098.1A patent/CN109545154B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101751867A (en) * | 2008-12-17 | 2010-06-23 | 乐金显示有限公司 | Electrophoresis display and driving method thereof |
| CN102214443A (en) * | 2010-04-01 | 2011-10-12 | 广州奥熠电子科技有限公司 | Electrophoretic display and driving method thereof |
| CN105280142A (en) * | 2014-06-23 | 2016-01-27 | 精工爱普生株式会社 | Integrated Circuit Device, Electronic Apparatus, And Control Method For Electrooptic Panel |
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| CN105405411A (en) * | 2015-12-01 | 2016-03-16 | 深圳市国华光电科技有限公司 | Display driving method and system of sixteen-order electrophoretic display device |
| CN106023906A (en) * | 2016-06-24 | 2016-10-12 | 深圳市国华光电科技有限公司 | Electrophoretic electronic paper driving method and system thereof |
| CN108154851A (en) * | 2016-12-02 | 2018-06-12 | 达意科技股份有限公司 | The sequence controller circuit of electronic paper display devices |
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| CN116364022A (en) * | 2023-03-31 | 2023-06-30 | 广东志慧芯屏科技有限公司 | Electronic paper display screen driving method and system and electronic equipment |
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| CN109545154B (en) | 2020-11-24 |
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