CN115294943A - Waveform debugging method for eliminating doped heterochromatic particles in electronic paper black picture - Google Patents
Waveform debugging method for eliminating doped heterochromatic particles in electronic paper black picture Download PDFInfo
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- CN115294943A CN115294943A CN202210558373.5A CN202210558373A CN115294943A CN 115294943 A CN115294943 A CN 115294943A CN 202210558373 A CN202210558373 A CN 202210558373A CN 115294943 A CN115294943 A CN 115294943A
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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
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
- G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F3/00—Labels, tag tickets, or similar identification or indication means; Seals; Postage or like stamps
- G09F3/08—Fastening or securing by means not forming part of the material of the label itself
- G09F3/18—Casings, frames or enclosures for labels
- G09F3/20—Casings, frames or enclosures for labels for adjustable, removable, or interchangeable labels
- G09F3/208—Electronic labels, Labels integrating electronic displays
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Theoretical Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Computer Hardware Design (AREA)
- Optics & Photonics (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Abstract
The invention relates to a waveform debugging method for eliminating doped heterochromatic particles in a black picture of electronic paper, which comprises the steps of applying a-15V driving voltage to charged particles between a flashing stage and a display stage to enable the black particles and the heterochromatic particles with the same polarity as the black particles to all sink, applying a-15V VCOM voltage while applying a +15V driving voltage in a second preset time range to the charged particles to generate a 30V voltage difference, enabling the black particles to quickly float upwards, and enabling the heterochromatic particles with the same polarity to float upwards slowly, so that the black particles are separated from other heterochromatic particles, and avoiding doping difference when the electronic paper displays black.
Description
Technical Field
The invention relates to the technical field of electronic paper, in particular to a waveform debugging method for eliminating doped heterochromatic particles in a black picture of electronic paper.
Background
The electronic paper is a display screen made by utilizing electrophoretic display technology, and the effect of displaying images is achieved by continuously applying the waveform of driving voltage to each pixel point through a driving integrated circuit. The electronic paper with three colors is prepared by encapsulating black and white charged particles in a same capsule structure, and the electronic paper with three colors is prepared by encapsulating black and white red or black and white yellow or black and white blue charged particles in a same capsule structure, and controlling the black/white/red particles with different charges to move up and down by an external electric field to display black and white, two-color and three-color display effects.
The phenomenon of black and red blushing can occur when ESL (electronic price label) black-white-red products in the current market are used and when the conventional electronic paper film is produced and adjusted, because black and red are driven by the same voltage, black and red particles are very easy to be doped together, so that the black looks reddish and is not pure black; in particular, the red area is refreshed → black appears very red-black, and the black optical A value is about 5 or 6.
Disclosure of Invention
The invention solves the problem of doping other heterochromatic particles when the electronic paper displays black.
In order to solve the above problems, the present invention provides a waveform debugging method for eliminating doped heterochromatic particles in electronic paper display black, where the waveform debugging includes a voltage balancing stage, a flashing stage and a display stage, and the method for eliminating doped heterochromatic particles in electronic paper display is performed between the flashing stage and the display stage, and specifically includes:
step 1, after the flashing stage is finished, applying a first preset time range of-15V driving voltage to the charged particles, and displaying the charged particles as a white picture;
step 2, applying a second preset time range +15V driving voltage to the charged particles, and simultaneously providing VCOM voltage of the second preset time range-15V;
step 3, applying GND voltage for a third preset time;
step 4, applying +15V driving voltage for a fourth preset time to the charged particles;
and 5, entering a display stage to debug the waveform.
The invention has the beneficial effects that: between the flashing stage and the display stage, a-15V driving voltage is applied to the charged particles to enable the black particles and the heterochromatic particles with the same polarity as the black particles to all sink, then a-15V VCOM voltage is applied to the charged particles while a +15V driving voltage in a second preset time range is applied to the charged particles, and therefore a voltage difference of 30V is generated, the black particles can quickly float upwards, heterochromatic particles with the same polarity float upwards slowly, the black particles are separated from other heterochromatic particles, and heterochromatic doping when the electronic paper displays black is avoided.
Preferably, the first predetermined time range is 400ms to 800ms, so that the black particles and other heterochromatic particles having the same polarity as the black particles sink.
Preferably, the second predetermined time range is smaller than the first predetermined time range, and the second predetermined time range is 40ms to 60ms, so that the black particles float rapidly in a short time, and the floating speed of the other heterochromatic particles with the same polarity is slow, thereby separating the black particles from the heterochromatic particles.
Preferably, the third preset time is 600ms, so that the effect of stabilizing the particles is achieved.
Preferably, the fourth preset time is 200ms, and the black screen is displayed in an auxiliary manner.
Drawings
FIG. 1 is a schematic diagram of a waveform debugging method of the present invention;
FIG. 2 is a driving waveform diagram according to the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
As shown in fig. 2, a waveform debugging method for eliminating reference heterochromatic particles in a black picture of electronic paper, where waveform debugging includes a voltage balancing stage, a flashing stage and a display stage, where the elimination of doped heterochromatic particles in the electronic paper is debugged between the flashing stage and the display stage, where the heterochromatic particles in this specific implementation example refer to red particles, and specifically includes:
step 1, after the flashing stage is finished, applying a first preset time range of-15V driving voltage to the charged particles to enable the black particles and the red particles to completely sink and display a white picture, wherein the first preset time range is 400-800 ms;
step 2, applying a second preset time range +15V driving voltage to the charged particles, and simultaneously providing a VCOM voltage of-15V in the second preset time range, so as to generate a voltage difference of 30V, so that the black particles can quickly float upwards, and the red floats upwards slowly, so that the black particles are separated from other heterochromatic particles, and the phenomenon that an electronic paper displays a black picture to be reddish is avoided; the second preset time range is smaller than the first preset time range, and the second preset time range is 40ms-60ms;
step 3, applying the GND voltage for a third preset time, wherein the third preset time is 600ms, and the effect of stabilizing particles is achieved;
step 4, applying a +15V driving voltage for a fourth preset time to the charged particles, wherein the fourth preset time is 200ms;
and 5, entering a display stage to debug the waveform.
Finally, the charged particles in the capsule structure at each pixel point are as shown in fig. 1.
TABLE 1 comparison of optical values of black frames of the prior art and the present application
| Black optical value | Value of L | Value of A |
| Standard of merit | <14 | <4 |
| Before improvement | 9.72 | 6.82 |
| After improvement | 10.05 | 3.4 |
TABLE 1
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (5)
1. A method for debugging waveforms for eliminating doped heterochromatic particles in a black picture of electronic paper is characterized in that the method for debugging waveforms for eliminating the doped heterochromatic particles displayed by the electronic paper is used for debugging between a flashing stage and a displaying stage, and specifically comprises the following steps:
step 1, after the flashing stage is finished, applying a first preset time range of-15V driving voltage to the charged particles, and displaying the charged particles as a white picture;
step 2, applying a second preset time range +15V driving voltage to the charged particles, and providing a VCOM voltage of the second preset time range-15V;
step 3, applying GND voltage for a third preset time;
step 4, applying +15V driving voltage for a fourth preset time to the charged particles;
and 5, entering a display stage to debug the waveform.
2. The method as claimed in claim 1, wherein the first predetermined time range is 400ms-800ms.
3. The method as claimed in claim 1, wherein the second predetermined time range is 40ms-60ms.
4. The method as claimed in claim 1, wherein the third predetermined time is 600ms.
5. The method as claimed in claim 1, wherein the fourth predetermined time is 200ms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210558373.5A CN115294943A (en) | 2022-05-20 | 2022-05-20 | Waveform debugging method for eliminating doped heterochromatic particles in electronic paper black picture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210558373.5A CN115294943A (en) | 2022-05-20 | 2022-05-20 | Waveform debugging method for eliminating doped heterochromatic particles in electronic paper black picture |
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| Publication Number | Publication Date |
|---|---|
| CN115294943A true CN115294943A (en) | 2022-11-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210558373.5A Pending CN115294943A (en) | 2022-05-20 | 2022-05-20 | Waveform debugging method for eliminating doped heterochromatic particles in electronic paper black picture |
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| CN (1) | CN115294943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116386550A (en) * | 2023-04-03 | 2023-07-04 | 浙江汉显科技有限公司 | Quick brushing and debugging method for electronic paper driving waveform |
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2022
- 2022-05-20 CN CN202210558373.5A patent/CN115294943A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116386550A (en) * | 2023-04-03 | 2023-07-04 | 浙江汉显科技有限公司 | Quick brushing and debugging method for electronic paper driving waveform |
| CN116386550B (en) * | 2023-04-03 | 2024-03-26 | 浙江汉显科技有限公司 | Quick brushing and debugging method for electronic paper driving waveform |
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Address after: 343000 in Jizhou Industrial Park, Ji'an City, Jiangxi Province Applicant after: Jiangxi Xingtai Technology Co.,Ltd. Address before: 343099 Industrial Park, Jizhou District, Ji'an City, Jiangxi Province Applicant before: JIANGXI XINGTAI TECHNOLOGY Co.,Ltd. |
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